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GNU LIBRARY GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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This is the public release of libelf-0.8.13, a free ELF object
file access library. If you have problems with applications
that use libelf and work with the commercial (SVR4, Solaris)
version but not with this one, please contact me.
IMPORTANT NOTE: If you have libelf-0.5.2 installed, you probably
have a file .../include/elf.h that contains the single line
``#include <libelf/elf.h>''. REMOVE THIS FILE BEFORE YOU RUN
configure.
Installation is straightforward - the package is autoconf'ed. Just do
``cd libelf-0.8.13; ./configure; make; make install''. Header files
will be installed in .../include/libelf/. If your system does not
provide its own versions of libelf.h, nlist.h or gelf.h, ``make
install'' will add the missing headers. If you prefer not to have
these files installed in /usr/include, use ``--disable-compat'' and
add ``-I /usr/include/libelf'' to your CFLAGS when compiling
libelf-based programs.
Note to distribution makers: You can install libelf in a separate root
hierarchy by using the command ``make instroot=/my/root install''.
You should also use the ``--enable-compat'' configure option in that
case, or run ``make instroot=/my/root install-compat'' manually, to
install all the required header files.
If you are running Linux with libc 5.* as the default C library,
and you plan to use the 64-bit functions, you must either use
``-I.../include/libelf'', or remove /usr/include/libelf.h and use
``--enable-compat'' when running configure. Libc 6.* (aka glibc2)
doesn't have its own <libelf.h>, <nlist.h> or <gelf.h>.
You need an ANSI/ISO C compiler to build libelf. Gcc is optimal.
On some systems (in particular, Solaris and all variants of Linux),
``make'' will try to build a shared library. If you run into problems
on your system, please pass ``--disable-shared'' to configure.
If you build a shared library and want it to be installed as
``libelf-0.8.13.so'' rather than ``libelf.so.0.8.13'', please use
``./configure --enable-gnu-names''. Other files, e.g. ``libelf.so'' and
``libelf.so.0'' are NOT affected.
Another configure option, ``--enable-debug'', adds debugging code to
libelf; if you don't run into problems, you will probably not need it.
When creating an ELF shared library, it is possible to add references
to other shared libraries in the DYNAMIC section of the resulting
file. The make variable DEPSHLIBS contains a list of libraries to add.
It is set to ``-lc'' on Linux systems, and empty otherwise. To
override this setting, use something like ``make DEPSHLIBS="-la -lb"''.
For Linux, `-lc' is included automagically.
NLS is available and enabled by default. To turn it off, pass the
``--disable-nls'' option to configure.
Libelf can use gettext or catgets for accessing message
catalogs. If gettext is available AND is part of libc (i.e. not
in a separate library), it will be used. Otherwise, configure
will look for catgets. If you have gettext in a separate
library and want to use it, you should pass the library's name
to configure, e.g. ``LIBS=-lintl ./configure''. Note that you
MUST link your libelf-based applications with -lintl then,
which is probably not what you want, or change the DEPSHLIBS variable
described above (in case you're building a shared library).
If you have GNU gettext 0.10 installed on your system, and if GNU gettext
runs on top of the catgets interface (rather old Linux systems, using
libc5), configure will refuse to use it and use catgets instead. If you
absolutely want to use GNU gettext, go ahead and rebuild it (which is
IMHO a good idea in general in this case):
cd .../gettext-0.10
ac_cv_func_catgets=no ac_cv_func_gettext=no ./configure
make
make install
After that, return to the libelf build directory, remove
config.cache, and start over.
*** Large File Support (LFS) applications ***
Some 32-bit systems support files that are larger than the address space
of the architecture. On these, the `off_t' data type may have 32 or
64 bits, depending on the API you choose. Since off_t is also part of
the libelf API, in particular the Elf_Data and Elf_Arhdr structures,
an application compiled with large file support will need a version of
libelf that has also been compiled with LFS; otherwise, it won't work
correctly. Similarly, a program compiled without LFS needs a library
compiled without LFS.
Note that libelf is currently unable to process large files on 32-bit
architectures, whether you compile it for LFS or not, for the simple
reason that the files won't fit into the processes' address space.
Therefore, libelf is compiled without LFS by default. It can of course
read and write ELF files for 64-bit architectures, but they will be
limited in length on a 32-bit system.
You may compile libelf with large file support by setting CPPFLAGS at
configuration time:
CPPFLAGS=`getconf LFS_CFLAGS` ./configure
But I really, really recommend you don't, because it breaks binary
compatibility with existing libelf based applications.
*** 64-bit support ***
Starting with libelf-0.7.0, libelf also supports 64-bit ELF files.
This is enabled by default unless your system (or your compiler) does
not support 64-bit integers, or lacks 64-bit declarations in <elf.h>.
If you have problems building with 64-bit support, please do
./configure --disable-elf64
for the moment, and contact me. Please note that I haven't tested 64-bit
support much. There are still some unresolved problems, e.g. IRIX
uses different Elf64_Rel and Elf64_Rela structures (they replaced the
r_info member), and the enumeration values for Elf_Type differ from
the commercial (SVR4) implementation of libelf - they broke binary
compatibility for no good reason, and I'm not willing to follow their
footsteps. The result is that libelf-0.7.* ist upward compatible with
libelf-0.6.4 (as it should be) but INCOMPATIBLE WITH SVR4 LIBELF. If you
have both versions installed, you'd better make sure that you link with
the library that matches the <libelf.h> you're #include'ing.
*** Symbol Versioning ***
Libelf >= 0.8.0 supports the data structures and definitions used for
symbol versioning on Solaris and Linux, in particular, the Elfxx_Verdef,
Elfxx_Verdaux, Elfxx_Verneed, Elfxx_Vernaux and Elfxx_Versym structures
and the SHT_XXX_verdef, SHT_XXX_verneed and SHT_XXX_versym section types
(where `xx' is either `32' or `64', and `XXX' is either `SUNW' or `GNU').
Libelf now translates versioning sections to/from their external
representation properly (earlier versions left them in `raw' format,
with the data type set to ELF_T_BYTE). This may cause problems on
systems which use the same (OS-specific) section types for different
purposes. The configure program tries to figure out if your OS uses
versioning; if that check fails, you can use
./configure --disable-versioning
to turn off versioning translation support.
*** W32 Support ***
There is now some support for building on W32 systems (requires Microsoft
VC++). In order to build a W32 DLL, cd into the `lib' subdirectory, edit
build.bat if necessary (it needs the path to your compiler binaries) and
run it. If you're lucky, libelf.dll and the import/export libraries will
be built. If not, please drop me a line.
I tested it on XP Pro (SP2), using VC++ 2005 Express Edition.
Apparently, Visual Studio .NET 2003 works fine as well.
Various notes regarding the W32 port:
- When you open() an ELF file, remember to use the O_BINARY flag.
- You may have to add /MD to the linker command line.
*** Missing things ***
* There is no documentation. You can use the Solaris
manpages instead (available at http://docs.sun.com/).
The ELF file format is described in several places;
among them Suns "Linker and Libraries Guide" and the
"System V Application Binary Interface" documents;
http://www.caldera.com/developer/devspecs/gabi41.pdf and
http://www.caldera.com/developer/gabi/ are probably good
starting points. Processor-specific documentation is spread
across a number of `Processor Supplement' documents, one
for each architecture; you'll have to use a search engine to
find them.
* The COFF file format is not understood. This is so obsolete
that it will probably never be implemented.
* nlist(3) is incomplete; the n_type and n_sclass
members of struct nl are set to zero even if type
(that is, debug) information is available.
* Libelf does not translate Solaris' `Move' and `Syminfo'
sections. You can read them using elf_getdata(), but you'll
only get raw (untranslated) bytes.
Changes since 0.8.12:
* New function elf_getaroff().
* Build fixes.
Changes since 0.8.11:
* Due to some unfortunate confusion, the elf_getphnum(),
elf_getshnum() and elf_getshstrndx() are not compatible
between libelf implementations. Therefore, the developers
decided to replace them with new functions: elf_getphdrnum(),
elf_getshdrnum() and elf_getshdrstrndx(), which will always
return -1 on failure and 0 on success. Code using the old
interface should be upgraded to increase portability.
Changes since 0.8.10:
* Fixed a bug in elf_rawfile().
* If you use ELF_F_LAYOUT together with ELF_F_LAYOUT_OVERLAP,
elf_update() will now tolerate overlapping sections.
Changes since 0.8.9:
* Ported to QNX Neutrino.
* Fixed Windows build errors.
* Parallel (make -j) installation should work now.
* It's now possible to enable and disable select sanity checks
libelf performs. Currently, this affects the "NUL terminated
string table entry" check performed in elf_strptr(). By
default, the function will return an error if the string
requested is not properly terminated - because some
applications might dump core otherwise. If you configure
libelf with `--disable-sanity-checks', however, the check
(and, in the future, probably others as well) is disabled
by default. You can still turn it on and off at runtime by
setting the LIBELF_SANITY_CHECKS environment variable to
an integer value:
# disable all sanity checks
export LIBELF_SANITY_CHECKS=0
# enable all sanity checks
export LIBELF_SANITY_CHECKS=-1
Each bit of the value corresponds to a particular check,
so you could use LIBELF_SANITY_CHECKS=1 to enable only
the elf_strptr() check. You may also use a value in hex
(0x...) or octal (0...) format.
Changes since 0.8.8:
* Improved translator for symbol versioning sections.
* The W32 library is now built in the `lib' subdirectory.
* Windows DLLs should work now.
Changes since 0.8.6:
* added elf_getphnum().
* added elf_getshnum().
* added elf_getshstrndx().
* added elfx_update_shstrndx().
* handle interrupted reads/writes more gracefully.
* added (partial) support for unusual e_[ps]hentsize values.
* fixed the bugs introduced in 0.8.7.
Changes since 0.8.5:
* added W32 support.
* added workaround for alignment errors in archive members.
* my email address has changed again ;)
Changes since 0.8.4:
* elf_strptr() should now work more safely with fragmented
or badly formatted string tables.
Changes since 0.8.3:
* Fixed a bug in elf_update() that was introduced in 0.8.3.
Changes since 0.8.2:
* Should compile on MacOSX now.
* Can read and write files with more than 65280 sections
* Tries to handle 64-bit ELF files that use 8-byte hash table
entries. In particular, libelf tries to guess the data type in
elf_getdata(), and doesn't override sh_entsize in elf_update()
any longer. If you want the library to pick the entry size,
you must set its value to 0 before you call elf_update().
* No longer dumps core in elf_update() when a versioning section
has no data. Instead, it returns an error message. Note that
you're supposed to provide a valid d_buf for any section, unless
it's empty or has SHT_NOBITS type.
* Building a shared library is now the default (if supported).
Changes since 0.8.0:
* Corrected typo in lib/{32,64}.xlatetof.c that sometimes
caused a compilation failure.
* Use open(name, O_RDONLY|O_BINARY) in lib/nlist.c.
Changes since 0.7.0:
* I implemented the gelf_* interface, as found on Solaris.
I don't know whether it's compatible -- the Solaris manpage
isn't very specific, so I had to guess return values etc. in
some cases.
* Added elf{32,64}_checksum (supposed to be compatible with
Solaris).
* Added symbol versioning support.
Changes since 0.6.4:
* Fixed configure for IRIX systems
* Added check for truncated archive members
* Added check for misaligned SHDR/PHDR tables
* Support for building libelf together with GNU libc
* Added elf_memory(3)
* Added 64-bit support
Changes since 0.5.2:
* some bug fixes
* mmap support
* new directory layout
* There is a new function, elf_delscn(), that deletes
a section from an ELF file. It also adjusts the
sh_link and sh_info members in the section header
table, if (and ONLY if) the ELF standard indicates
that these values are section indices. References
to the deleted section will be cleared, so be careful.
* my email address has changed ;)
Where to get libelf:
ftp://ftp.ibiblio.org/pub/Linux/libs/
http://www.mr511.de/software/
Michael "Tired" Riepe
<libelf@mr511.de>

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/*
* libelf.h - public header file for libelf.
* Copyright (C) 1995 - 2008 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: libelf.h,v 1.29 2009/07/07 17:57:43 michael Exp $ */
#ifndef _LIBELF_H
#define _LIBELF_H
#include <stddef.h> /* for size_t */
#include <sys/types.h>
#if __LIBELF_INTERNAL__
#include <sys_elf.h>
#else /* __LIBELF_INTERNAL__ */
#include <libelf/sys_elf.h>
#endif /* __LIBELF_INTERNAL__ */
#if defined __GNUC__ && !defined __cplusplus
#define DEPRECATED __attribute__((deprecated))
#else
#define DEPRECATED /* nothing */
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef __P
# if (__STDC__ + 0) || defined(__cplusplus) || defined(_WIN32)
# define __P(args) args
# else /* __STDC__ || defined(__cplusplus) */
# define __P(args) ()
# endif /* __STDC__ || defined(__cplusplus) */
#endif /* __P */
/*
* Commands
*/
typedef enum {
ELF_C_NULL = 0, /* must be first, 0 */
ELF_C_READ,
ELF_C_WRITE,
ELF_C_CLR,
ELF_C_SET,
ELF_C_FDDONE,
ELF_C_FDREAD,
ELF_C_RDWR,
ELF_C_NUM /* must be last */
} Elf_Cmd;
/*
* Flags
*/
#define ELF_F_DIRTY 0x1
#define ELF_F_LAYOUT 0x4
/*
* Allow sections to overlap when ELF_F_LAYOUT is in effect.
* Note that this flag ist NOT portable, and that it may render
* the output file unusable. Use with extreme caution!
*/
#define ELF_F_LAYOUT_OVERLAP 0x10000000
/*
* File types
*/
typedef enum {
ELF_K_NONE = 0, /* must be first, 0 */
ELF_K_AR,
ELF_K_COFF,
ELF_K_ELF,
ELF_K_NUM /* must be last */
} Elf_Kind;
/*
* Data types
*/
typedef enum {
ELF_T_BYTE = 0, /* must be first, 0 */
ELF_T_ADDR,
ELF_T_DYN,
ELF_T_EHDR,
ELF_T_HALF,
ELF_T_OFF,
ELF_T_PHDR,
ELF_T_RELA,
ELF_T_REL,
ELF_T_SHDR,
ELF_T_SWORD,
ELF_T_SYM,
ELF_T_WORD,
/*
* New stuff for 64-bit.
*
* Most implementations add ELF_T_SXWORD after ELF_T_SWORD
* which breaks binary compatibility with earlier versions.
* If this causes problems for you, contact me.
*/
ELF_T_SXWORD,
ELF_T_XWORD,
/*
* Symbol versioning. Sun broke binary compatibility (again!),
* but I won't.
*/
ELF_T_VDEF,
ELF_T_VNEED,
ELF_T_NUM /* must be last */
} Elf_Type;
/*
* Elf descriptor
*/
typedef struct Elf Elf;
/*
* Section descriptor
*/
typedef struct Elf_Scn Elf_Scn;
/*
* Archive member header
*/
typedef struct {
char* ar_name;
time_t ar_date;
long ar_uid;
long ar_gid;
unsigned long ar_mode;
off_t ar_size;
char* ar_rawname;
} Elf_Arhdr;
/*
* Archive symbol table
*/
typedef struct {
char* as_name;
size_t as_off;
unsigned long as_hash;
} Elf_Arsym;
/*
* Data descriptor
*/
typedef struct {
void* d_buf;
Elf_Type d_type;
size_t d_size;
off_t d_off;
size_t d_align;
unsigned d_version;
} Elf_Data;
/*
* Function declarations
*/
extern Elf *elf_begin __P((int __fd, Elf_Cmd __cmd, Elf *__ref));
extern Elf *elf_memory __P((char *__image, size_t __size));
extern int elf_cntl __P((Elf *__elf, Elf_Cmd __cmd));
extern int elf_end __P((Elf *__elf));
extern const char *elf_errmsg __P((int __err));
extern int elf_errno __P((void));
extern void elf_fill __P((int __fill));
extern unsigned elf_flagdata __P((Elf_Data *__data, Elf_Cmd __cmd,
unsigned __flags));
extern unsigned elf_flagehdr __P((Elf *__elf, Elf_Cmd __cmd,
unsigned __flags));
extern unsigned elf_flagelf __P((Elf *__elf, Elf_Cmd __cmd,
unsigned __flags));
extern unsigned elf_flagphdr __P((Elf *__elf, Elf_Cmd __cmd,
unsigned __flags));
extern unsigned elf_flagscn __P((Elf_Scn *__scn, Elf_Cmd __cmd,
unsigned __flags));
extern unsigned elf_flagshdr __P((Elf_Scn *__scn, Elf_Cmd __cmd,
unsigned __flags));
extern size_t elf32_fsize __P((Elf_Type __type, size_t __count,
unsigned __ver));
extern Elf_Arhdr *elf_getarhdr __P((Elf *__elf));
extern Elf_Arsym *elf_getarsym __P((Elf *__elf, size_t *__ptr));
extern off_t elf_getbase __P((Elf *__elf));
extern Elf_Data *elf_getdata __P((Elf_Scn *__scn, Elf_Data *__data));
extern Elf32_Ehdr *elf32_getehdr __P((Elf *__elf));
extern char *elf_getident __P((Elf *__elf, size_t *__ptr));
extern Elf32_Phdr *elf32_getphdr __P((Elf *__elf));
extern Elf_Scn *elf_getscn __P((Elf *__elf, size_t __index));
extern Elf32_Shdr *elf32_getshdr __P((Elf_Scn *__scn));
extern unsigned long elf_hash __P((const unsigned char *__name));
extern Elf_Kind elf_kind __P((Elf *__elf));
extern size_t elf_ndxscn __P((Elf_Scn *__scn));
extern Elf_Data *elf_newdata __P((Elf_Scn *__scn));
extern Elf32_Ehdr *elf32_newehdr __P((Elf *__elf));
extern Elf32_Phdr *elf32_newphdr __P((Elf *__elf, size_t __count));
extern Elf_Scn *elf_newscn __P((Elf *__elf));
extern Elf_Cmd elf_next __P((Elf *__elf));
extern Elf_Scn *elf_nextscn __P((Elf *__elf, Elf_Scn *__scn));
extern size_t elf_rand __P((Elf *__elf, size_t __offset));
extern Elf_Data *elf_rawdata __P((Elf_Scn *__scn, Elf_Data *__data));
extern char *elf_rawfile __P((Elf *__elf, size_t *__ptr));
extern char *elf_strptr __P((Elf *__elf, size_t __section, size_t __offset));
extern off_t elf_update __P((Elf *__elf, Elf_Cmd __cmd));
extern unsigned elf_version __P((unsigned __ver));
extern Elf_Data *elf32_xlatetof __P((Elf_Data *__dst, const Elf_Data *__src,
unsigned __encode));
extern Elf_Data *elf32_xlatetom __P((Elf_Data *__dst, const Elf_Data *__src,
unsigned __encode));
/*
* Additional functions found on Solaris
*/
extern long elf32_checksum __P((Elf *__elf));
#if __LIBELF64
/*
* 64-bit ELF functions
* Not available on all platforms
*/
extern Elf64_Ehdr *elf64_getehdr __P((Elf *__elf));
extern Elf64_Ehdr *elf64_newehdr __P((Elf *__elf));
extern Elf64_Phdr *elf64_getphdr __P((Elf *__elf));
extern Elf64_Phdr *elf64_newphdr __P((Elf *__elf, size_t __count));
extern Elf64_Shdr *elf64_getshdr __P((Elf_Scn *__scn));
extern size_t elf64_fsize __P((Elf_Type __type, size_t __count,
unsigned __ver));
extern Elf_Data *elf64_xlatetof __P((Elf_Data *__dst, const Elf_Data *__src,
unsigned __encode));
extern Elf_Data *elf64_xlatetom __P((Elf_Data *__dst, const Elf_Data *__src,
unsigned __encode));
/*
* Additional functions found on Solaris
*/
extern long elf64_checksum __P((Elf *__elf));
#endif /* __LIBELF64 */
/*
* ELF format extensions
*
* These functions return 0 on failure, 1 on success. Since other
* implementations of libelf may behave differently (there was quite
* some confusion about the correct values), they are now officially
* deprecated and should be replaced with the three new functions below.
*/
DEPRECATED extern int elf_getphnum __P((Elf *__elf, size_t *__resultp));
DEPRECATED extern int elf_getshnum __P((Elf *__elf, size_t *__resultp));
DEPRECATED extern int elf_getshstrndx __P((Elf *__elf, size_t *__resultp));
/*
* Replacement functions (return -1 on failure, 0 on success).
*/
extern int elf_getphdrnum __P((Elf *__elf, size_t *__resultp));
extern int elf_getshdrnum __P((Elf *__elf, size_t *__resultp));
extern int elf_getshdrstrndx __P((Elf *__elf, size_t *__resultp));
/*
* Convenience functions
*
* elfx_update_shstrndx is elf_getshstrndx's counterpart.
* It should be used to set the e_shstrndx member.
* There is no update function for e_shnum or e_phnum
* because libelf handles them internally.
*/
extern int elfx_update_shstrndx __P((Elf *__elf, size_t __index));
/*
* Experimental extensions:
*
* elfx_movscn() moves section `__scn' directly after section `__after'.
* elfx_remscn() removes section `__scn'. Both functions update
* the section indices; elfx_remscn() also adjusts the ELF header's
* e_shnum member. The application is responsible for updating other
* data (in particular, e_shstrndx and the section headers' sh_link and
* sh_info members).
*
* elfx_movscn() returns the new index of the moved section.
* elfx_remscn() returns the original index of the removed section.
* A return value of zero indicates an error.
*/
extern size_t elfx_movscn __P((Elf *__elf, Elf_Scn *__scn, Elf_Scn *__after));
extern size_t elfx_remscn __P((Elf *__elf, Elf_Scn *__scn));
/*
* elf_delscn() is obsolete. Please use elfx_remscn() instead.
*/
extern size_t elf_delscn __P((Elf *__elf, Elf_Scn *__scn));
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _LIBELF_H */

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/*
* elf_repl.h - public header file for systems that lack it.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: elf_repl.h,v 1.22 2009/11/01 13:04:19 michael Exp $ */
/*
* NEVER INCLUDE THIS FILE DIRECTLY - USE <libelf.h> INSTEAD!
*/
#ifndef _ELF_REPL_H
#define _ELF_REPL_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* Scalar data types
*/
typedef __libelf_u32_t Elf32_Addr;
typedef __libelf_u16_t Elf32_Half;
typedef __libelf_u32_t Elf32_Off;
typedef __libelf_i32_t Elf32_Sword;
typedef __libelf_u32_t Elf32_Word;
#define ELF32_FSZ_ADDR 4
#define ELF32_FSZ_HALF 2
#define ELF32_FSZ_OFF 4
#define ELF32_FSZ_SWORD 4
#define ELF32_FSZ_WORD 4
#if __LIBELF64
typedef __libelf_u64_t Elf64_Addr;
typedef __libelf_u16_t Elf64_Half;
typedef __libelf_u64_t Elf64_Off;
typedef __libelf_i32_t Elf64_Sword;
typedef __libelf_u32_t Elf64_Word;
typedef __libelf_i64_t Elf64_Sxword;
typedef __libelf_u64_t Elf64_Xword;
#define ELF64_FSZ_ADDR 8
#define ELF64_FSZ_HALF 2
#define ELF64_FSZ_OFF 8
#define ELF64_FSZ_SWORD 4
#define ELF64_FSZ_WORD 4
#define ELF64_FSZ_SXWORD 8
#define ELF64_FSZ_XWORD 8
/*
* Blame Sun for this...
*/
typedef __libelf_u64_t Elf64_Lword;
typedef __libelf_u64_t Elf32_Lword;
#endif /* __LIBELF64 */
/*
* ELF header
*/
#define EI_NIDENT 16
typedef struct {
unsigned char e_ident[EI_NIDENT];
Elf32_Half e_type;
Elf32_Half e_machine;
Elf32_Word e_version;
Elf32_Addr e_entry;
Elf32_Off e_phoff;
Elf32_Off e_shoff;
Elf32_Word e_flags;
Elf32_Half e_ehsize;
Elf32_Half e_phentsize;
Elf32_Half e_phnum;
Elf32_Half e_shentsize;
Elf32_Half e_shnum;
Elf32_Half e_shstrndx;
} Elf32_Ehdr;
#if __LIBELF64
typedef struct {
unsigned char e_ident[EI_NIDENT];
Elf64_Half e_type;
Elf64_Half e_machine;
Elf64_Word e_version;
Elf64_Addr e_entry;
Elf64_Off e_phoff;
Elf64_Off e_shoff;
Elf64_Word e_flags;
Elf64_Half e_ehsize;
Elf64_Half e_phentsize;
Elf64_Half e_phnum;
Elf64_Half e_shentsize;
Elf64_Half e_shnum;
Elf64_Half e_shstrndx;
} Elf64_Ehdr;
#endif /* __LIBELF64 */
/*
* e_ident
*/
#define EI_MAG0 0
#define EI_MAG1 1
#define EI_MAG2 2
#define EI_MAG3 3
#define EI_CLASS 4
#define EI_DATA 5
#define EI_VERSION 6
#define EI_OSABI 7
#define EI_ABIVERSION 8
#define EI_PAD 9
#define ELFMAG0 0x7f
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG "\177ELF"
#define SELFMAG 4
/*
* e_ident[EI_CLASS]
*/
#define ELFCLASSNONE 0
#define ELFCLASS32 1
#define ELFCLASS64 2
#define ELFCLASSNUM 3
/*
* e_ident[EI_DATA]
*/
#define ELFDATANONE 0
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define ELFDATANUM 3
/*
* e_ident[EI_OSABI]
*/
#define ELFOSABI_NONE 0 /* No extensions or unspecified */
#define ELFOSABI_SYSV ELFOSABI_NONE
#define ELFOSABI_HPUX 1 /* Hewlett-Packard HP-UX */
#define ELFOSABI_NETBSD 2 /* NetBSD */
#define ELFOSABI_LINUX 3 /* Linux */
#define ELFOSABI_SOLARIS 6 /* Sun Solaris */
#define ELFOSABI_AIX 7 /* AIX */
#define ELFOSABI_IRIX 8 /* IRIX */
#define ELFOSABI_FREEBSD 9 /* FreeBSD */
#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX */
#define ELFOSABI_MODESTO 11 /* Novell Modesto */
#define ELFOSABI_OPENBSD 12 /* Open BSD */
#define ELFOSABI_OPENVMS 13 /* Open VMS */
#define ELFOSABI_NSK 14 /* Hewlett-Packard Non-Stop Kernel */
#define ELFOSABI_AROS 15 /* Amiga Research OS */
/* these are probably obsolete: */
#define ELFOSABI_ARM 97 /* ARM */
#define ELFOSABI_STANDALONE 255 /* standalone (embedded) application */
/*
* e_type
*/
#define ET_NONE 0
#define ET_REL 1
#define ET_EXEC 2
#define ET_DYN 3
#define ET_CORE 4
#define ET_NUM 5
#define ET_LOOS 0xfe00
#define ET_HIOS 0xfeff
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff
/*
* e_machine
*/
#define EM_NONE 0 /* No machine */
#define EM_M32 1 /* AT&T WE 32100 */
#define EM_SPARC 2 /* SPARC */
#define EM_386 3 /* Intel 80386 */
#define EM_68K 4 /* Motorola 68000 */
#define EM_88K 5 /* Motorola 88000 */
#define EM_486 6 /* Intel i486 (DO NOT USE THIS ONE) */
#define EM_860 7 /* Intel 80860 */
#define EM_MIPS 8 /* MIPS I Architecture */
#define EM_S370 9 /* IBM System/370 Processor */
#define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
#define EM_SPARC64 11 /* SPARC 64-bit */
#define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
#define EM_VPP500 17 /* Fujitsu VPP500 */
#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
#define EM_960 19 /* Intel 80960 */
#define EM_PPC 20 /* PowerPC */
#define EM_PPC64 21 /* 64-bit PowerPC */
#define EM_S390 22 /* IBM System/390 Processor */
#define EM_V800 36 /* NEC V800 */
#define EM_FR20 37 /* Fujitsu FR20 */
#define EM_RH32 38 /* TRW RH-32 */
#define EM_RCE 39 /* Motorola RCE */
#define EM_ARM 40 /* Advanced RISC Machines ARM */
#define EM_ALPHA 41 /* Digital Alpha */
#define EM_SH 42 /* Hitachi SH */
#define EM_SPARCV9 43 /* SPARC Version 9 */
#define EM_TRICORE 44 /* Siemens TriCore embedded processor */
#define EM_ARC 45 /* Argonaut RISC Core, Argonaut Technologies Inc. */
#define EM_H8_300 46 /* Hitachi H8/300 */
#define EM_H8_300H 47 /* Hitachi H8/300H */
#define EM_H8S 48 /* Hitachi H8S */
#define EM_H8_500 49 /* Hitachi H8/500 */
#define EM_IA_64 50 /* Intel IA-64 processor architecture */
#define EM_MIPS_X 51 /* Stanford MIPS-X */
#define EM_COLDFIRE 52 /* Motorola ColdFire */
#define EM_68HC12 53 /* Motorola M68HC12 */
#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */
#define EM_PCP 55 /* Siemens PCP */
#define EM_NCPU 56 /* Sony nCPU embedded RISC processor */
#define EM_NDR1 57 /* Denso NDR1 microprocessor */
#define EM_STARCORE 58 /* Motorola Star*Core processor */
#define EM_ME16 59 /* Toyota ME16 processor */
#define EM_ST100 60 /* STMicroelectronics ST100 processor */
#define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor family */
#define EM_X86_64 62 /* AMD x86-64 architecture */
#define EM_AMD64 EM_X86_64
#define EM_PDSP 63 /* Sony DSP Processor */
#define EM_FX66 66 /* Siemens FX66 microcontroller */
#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit microcontroller */
#define EM_ST7 68 /* STMicroelectronics ST7 8-bit microcontroller */
#define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */
#define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */
#define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */
#define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */
#define EM_SVX 73 /* Silicon Graphics SVx */
#define EM_ST19 74 /* STMicroelectronics ST19 8-bit microcontroller */
#define EM_VAX 75 /* Digital VAX */
#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */
#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */
#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */
#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */
#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */
#define EM_HUANY 81 /* Harvard University machine-independent object files */
#define EM_PRISM 82 /* SiTera Prism */
#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */
#define EM_FR30 84 /* Fujitsu FR30 */
#define EM_D10V 85 /* Mitsubishi D10V */
#define EM_D30V 86 /* Mitsubishi D30V */
#define EM_V850 87 /* NEC v850 */
#define EM_M32R 88 /* Mitsubishi M32R */
#define EM_MN10300 89 /* Matsushita MN10300 */
#define EM_MN10200 90 /* Matsushita MN10200 */
#define EM_PJ 91 /* picoJava */
#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */
#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */
#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */
#define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */
#define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose Processor */
#define EM_NS32K 97 /* National Semiconductor 32000 series */
#define EM_TPC 98 /* Tenor Network TPC processor */
#define EM_SNP1K 99 /* Trebia SNP 1000 processor */
#define EM_ST200 100 /* STMicroelectronics (www.st.com) ST200 microcontroller */
#define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */
#define EM_MAX 102 /* MAX Processor */
#define EM_CR 103 /* National Semiconductor CompactRISC microprocessor */
#define EM_F2MC16 104 /* Fujitsu F2MC16 */
#define EM_MSP430 105 /* Texas Instruments embedded microcontroller msp430 */
#define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */
#define EM_SE_C33 107 /* S1C33 Family of Seiko Epson processors */
#define EM_SEP 108 /* Sharp embedded microprocessor */
#define EM_ARCA 109 /* Arca RISC Microprocessor */
#define EM_UNICORE 110 /* Microprocessor series from PKU-Unity Ltd. and MPRC of Peking University */
#define EM_NUM 111
/*
* e_ident[EI_VERSION], e_version
*/
#define EV_NONE 0
#define EV_CURRENT 1
#define EV_NUM 2
/*
* Section header
*/
typedef struct {
Elf32_Word sh_name;
Elf32_Word sh_type;
Elf32_Word sh_flags;
Elf32_Addr sh_addr;
Elf32_Off sh_offset;
Elf32_Word sh_size;
Elf32_Word sh_link;
Elf32_Word sh_info;
Elf32_Word sh_addralign;
Elf32_Word sh_entsize;
} Elf32_Shdr;
#if __LIBELF64
typedef struct {
Elf64_Word sh_name;
Elf64_Word sh_type;
Elf64_Xword sh_flags;
Elf64_Addr sh_addr;
Elf64_Off sh_offset;
Elf64_Xword sh_size;
Elf64_Word sh_link;
Elf64_Word sh_info;
Elf64_Xword sh_addralign;
Elf64_Xword sh_entsize;
} Elf64_Shdr;
#endif /* __LIBELF64 */
/*
* Special section indices
*/
#define SHN_UNDEF 0
#define SHN_LORESERVE 0xff00
#define SHN_LOPROC 0xff00
#define SHN_HIPROC 0xff1f
#define SHN_LOOS 0xff20
#define SHN_HIOS 0xff3f
#define SHN_ABS 0xfff1
#define SHN_COMMON 0xfff2
#define SHN_XINDEX 0xffff
#define SHN_HIRESERVE 0xffff
/*
* sh_type
*/
#define SHT_NULL 0
#define SHT_PROGBITS 1
#define SHT_SYMTAB 2
#define SHT_STRTAB 3
#define SHT_RELA 4
#define SHT_HASH 5
#define SHT_DYNAMIC 6
#define SHT_NOTE 7
#define SHT_NOBITS 8
#define SHT_REL 9
#define SHT_SHLIB 10
#define SHT_DYNSYM 11
#define SHT_INIT_ARRAY 14
#define SHT_FINI_ARRAY 15
#define SHT_PREINIT_ARRAY 16
#define SHT_GROUP 17
#define SHT_SYMTAB_SHNDX 18
#define SHT_NUM 19
#define SHT_LOOS 0x60000000
#define SHT_HIOS 0x6fffffff
#define SHT_LOPROC 0x70000000
#define SHT_HIPROC 0x7fffffff
#define SHT_LOUSER 0x80000000
#define SHT_HIUSER 0xffffffff
/*
* Solaris extensions
*/
#define SHT_LOSUNW 0x6ffffff4
#define SHT_SUNW_dof 0x6ffffff4
#define SHT_SUNW_cap 0x6ffffff5
#define SHT_SUNW_SIGNATURE 0x6ffffff6
#define SHT_SUNW_ANNOTATE 0x6ffffff7
#define SHT_SUNW_DEBUGSTR 0x6ffffff8
#define SHT_SUNW_DEBUG 0x6ffffff9
#define SHT_SUNW_move 0x6ffffffa
#define SHT_SUNW_COMDAT 0x6ffffffb
#define SHT_SUNW_syminfo 0x6ffffffc
#define SHT_SUNW_verdef 0x6ffffffd
#define SHT_SUNW_verneed 0x6ffffffe
#define SHT_SUNW_versym 0x6fffffff
#define SHT_HISUNW 0x6fffffff
#define SHT_SPARC_GOTDATA 0x70000000
#define SHT_AMD64_UNWIND 0x70000001
/*
* GNU extensions
*/
#define SHT_GNU_verdef 0x6ffffffd
#define SHT_GNU_verneed 0x6ffffffe
#define SHT_GNU_versym 0x6fffffff
/*
* sh_flags
*/
#define SHF_WRITE 0x1
#define SHF_ALLOC 0x2
#define SHF_EXECINSTR 0x4
#define SHF_MERGE 0x10
#define SHF_STRINGS 0x20
#define SHF_INFO_LINK 0x40
#define SHF_LINK_ORDER 0x80
#define SHF_OS_NONCONFORMING 0x100
#define SHF_GROUP 0x200
#define SHF_TLS 0x400
#define SHF_MASKOS 0x0ff00000
#define SHF_MASKPROC 0xf0000000
/*
* Solaris extensions
*/
#define SHF_AMD64_LARGE 0x10000000
#define SHF_ORDERED 0x40000000
#define SHF_EXCLUDE 0x80000000
/*
* Section group flags
*/
#define GRP_COMDAT 0x1
#define GRP_MASKOS 0x0ff00000
#define GRP_MASKPROC 0xf0000000
/*
* Symbol table
*/
typedef struct {
Elf32_Word st_name;
Elf32_Addr st_value;
Elf32_Word st_size;
unsigned char st_info;
unsigned char st_other;
Elf32_Half st_shndx;
} Elf32_Sym;
#if __LIBELF64
typedef struct {
Elf64_Word st_name;
unsigned char st_info;
unsigned char st_other;
Elf64_Half st_shndx;
Elf64_Addr st_value;
Elf64_Xword st_size;
} Elf64_Sym;
#endif /* __LIBELF64 */
/*
* Special symbol indices
*/
#define STN_UNDEF 0
/*
* Macros for manipulating st_info
*/
#define ELF32_ST_BIND(i) ((i)>>4)
#define ELF32_ST_TYPE(i) ((i)&0xf)
#define ELF32_ST_INFO(b,t) (((b)<<4)+((t)&0xf))
#if __LIBELF64
#define ELF64_ST_BIND(i) ((i)>>4)
#define ELF64_ST_TYPE(i) ((i)&0xf)
#define ELF64_ST_INFO(b,t) (((b)<<4)+((t)&0xf))
#endif /* __LIBELF64 */
/*
* Symbol binding
*/
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STB_NUM 3
#define STB_LOOS 10
#define STB_HIOS 12
#define STB_LOPROC 13
#define STB_HIPROC 15
/*
* Symbol types
*/
#define STT_NOTYPE 0
#define STT_OBJECT 1
#define STT_FUNC 2
#define STT_SECTION 3
#define STT_FILE 4
#define STT_COMMON 5
#define STT_TLS 6
#define STT_NUM 7
#define STT_LOOS 10
#define STT_HIOS 12
#define STT_LOPROC 13
#define STT_HIPROC 15
/*
* Macros for manipulating st_other
*/
#define ELF32_ST_VISIBILITY(o) ((o)&0x3)
#if __LIBELF64
#define ELF64_ST_VISIBILITY(o) ((o)&0x3)
#endif /* __LIBELF64 */
/*
* Symbol visibility
*/
#define STV_DEFAULT 0
#define STV_INTERNAL 1
#define STV_HIDDEN 2
#define STV_PROTECTED 3
/*
* Relocation
*/
typedef struct {
Elf32_Addr r_offset;
Elf32_Word r_info;
} Elf32_Rel;
typedef struct {
Elf32_Addr r_offset;
Elf32_Word r_info;
Elf32_Sword r_addend;
} Elf32_Rela;
#if __LIBELF64
typedef struct {
Elf64_Addr r_offset;
Elf64_Xword r_info;
} Elf64_Rel;
typedef struct {
Elf64_Addr r_offset;
Elf64_Xword r_info;
Elf64_Sxword r_addend;
} Elf64_Rela;
#endif /* __LIBELF64 */
/*
* Macros for manipulating r_info
*/
#define ELF32_R_SYM(i) ((i)>>8)
#define ELF32_R_TYPE(i) ((unsigned char)(i))
#define ELF32_R_INFO(s,t) (((s)<<8)+(unsigned char)(t))
#if __LIBELF64
#define ELF64_R_SYM(i) ((Elf64_Xword)(i)>>32)
#define ELF64_R_TYPE(i) ((i)&0xffffffffL)
#define ELF64_R_INFO(s,t) (((Elf64_Xword)(s)<<32)+((t)&0xffffffffL))
#endif /* __LIBELF64 */
/*
* Note entry header
*/
typedef struct {
Elf32_Word n_namesz; /* name size */
Elf32_Word n_descsz; /* descriptor size */
Elf32_Word n_type; /* descriptor type */
} Elf32_Nhdr;
#if __LIBELF64
/* Solaris and GNU use this layout. Be compatible. */
/* XXX: Latest ELF specs say it's 64-bit!!! */
typedef struct {
Elf64_Word n_namesz; /* name size */
Elf64_Word n_descsz; /* descriptor size */
Elf64_Word n_type; /* descriptor type */
} Elf64_Nhdr;
#endif /* __LIBELF64 */
/*
* Well-known descriptor types for ET_CORE files
*/
#define NT_PRSTATUS 1
#define NT_PRFPREG 2
#define NT_PRPSINFO 3
/*
* Program header
*/
typedef struct {
Elf32_Word p_type;
Elf32_Off p_offset;
Elf32_Addr p_vaddr;
Elf32_Addr p_paddr;
Elf32_Word p_filesz;
Elf32_Word p_memsz;
Elf32_Word p_flags;
Elf32_Word p_align;
} Elf32_Phdr;
#if __LIBELF64
typedef struct {
Elf64_Word p_type;
Elf64_Word p_flags;
Elf64_Off p_offset;
Elf64_Addr p_vaddr;
Elf64_Addr p_paddr;
Elf64_Xword p_filesz;
Elf64_Xword p_memsz;
Elf64_Xword p_align;
} Elf64_Phdr;
#endif /* __LIBELF64 */
/*
* Special numbers
*/
#define PN_XNUM 0xffff
/*
* p_type
*/
#define PT_NULL 0
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#define PT_TLS 7
#define PT_NUM 8
#define PT_LOOS 0x60000000
#define PT_HIOS 0x6fffffff
#define PT_LOPROC 0x70000000
#define PT_HIPROC 0x7fffffff
/*
* Solaris extensions
*/
#define PT_SUNW_UNWIND 0x6464e550
#define PT_LOSUNW 0x6ffffffa
#define PT_SUNWBSS 0x6ffffffa
#define PT_SUNWSTACK 0x6ffffffb
#define PT_SUNWDTRACE 0x6ffffffc
#define PT_SUNWCAP 0x6ffffffd
#define PT_HISUNW 0x6fffffff
/*
* p_flags
*/
#define PF_X 0x1
#define PF_W 0x2
#define PF_R 0x4
#define PF_MASKOS 0x0ff00000
#define PF_MASKPROC 0xf0000000
/*
* Dynamic structure
*/
typedef struct {
Elf32_Sword d_tag;
union {
Elf32_Word d_val;
Elf32_Addr d_ptr;
} d_un;
} Elf32_Dyn;
#if __LIBELF64
typedef struct {
Elf64_Sxword d_tag;
union {
Elf64_Xword d_val;
Elf64_Addr d_ptr;
} d_un;
} Elf64_Dyn;
#endif /* __LIBELF64 */
/*
* Dynamic array tags
*/
/* d_un exec shared */
#define DT_NULL 0 /* ign. mand. mand. */
#define DT_NEEDED 1 /* d_val opt. opt. */
#define DT_PLTRELSZ 2 /* d_val opt. opt. */
#define DT_PLTGOT 3 /* d_ptr opt. opt. */
#define DT_HASH 4 /* d_ptr mand. mand. */
#define DT_STRTAB 5 /* d_ptr mand. mand. */
#define DT_SYMTAB 6 /* d_ptr mand. mand. */
#define DT_RELA 7 /* d_ptr mand. opt. */
#define DT_RELASZ 8 /* d_val mand. opt. */
#define DT_RELAENT 9 /* d_val mand. opt. */
#define DT_STRSZ 10 /* d_val mand. mand. */
#define DT_SYMENT 11 /* d_val mand. mand. */
#define DT_INIT 12 /* d_ptr opt. opt. */
#define DT_FINI 13 /* d_ptr opt. opt. */
#define DT_SONAME 14 /* d_val ign. opt. */
#define DT_RPATH 15 /* d_val opt. ign. */
#define DT_SYMBOLIC 16 /* ign. ign. opt. */
#define DT_REL 17 /* d_ptr mand. opt. */
#define DT_RELSZ 18 /* d_val mand. opt. */
#define DT_RELENT 19 /* d_val mand. opt. */
#define DT_PLTREL 20 /* d_val opt. opt. */
#define DT_DEBUG 21 /* d_ptr opt. ign. */
#define DT_TEXTREL 22 /* ign. opt. opt. */
#define DT_JMPREL 23 /* d_ptr opt. opt. */
#define DT_BIND_NOW 24 /* ign. opt. opt. */
#define DT_INIT_ARRAY 25 /* d_ptr opt. opt. */
#define DT_FINI_ARRAY 26 /* d_ptr opt. opt. */
#define DT_INIT_ARRAYSZ 27 /* d_val opt. opt. */
#define DT_FINI_ARRAYSZ 28 /* d_val opt. opt. */
#define DT_RUNPATH 29 /* d_val opt. opt. */
#define DT_FLAGS 30 /* d_val opt. opt. */
#define DT_ENCODING 32 /* odd/even encoding rule starts here */
#define DT_PREINIT_ARRAY 32 /* d_ptr opt. ign. */
#define DT_PREINIT_ARRAYSZ 33 /* d_val opt. ign. */
#define DT_NUM 34
#define DT_LOOS 0x6000000D
#define DT_HIOS 0x6ffff000
#define DT_LOPROC 0x70000000
#define DT_HIPROC 0x7fffffff
/*
* DT_FLAGS values
*/
#define DF_ORIGIN 0x1
#define DF_SYMBOLIC 0x2
#define DF_TEXTREL 0x4
#define DF_BIND_NOW 0x8
#define DF_STATIC_TLS 0x10
/*
* Solaris extensions
*/
#define DT_VALRNGLO 0x6ffffd00
#define DT_CHECKSUM 0x6ffffdf8
#define DT_PLTPADSZ 0x6ffffdf9
#define DT_MOVEENT 0x6ffffdfa
#define DT_MOVESZ 0x6ffffdfb
#define DT_FEATURE_1 0x6ffffdfc
#define DT_POSFLAG_1 0x6ffffdfd
#define DT_SYMINSZ 0x6ffffdfe
#define DT_SYMINENT 0x6ffffdff
#define DT_VALRNGHI 0x6ffffdff
#define DT_ADDRRNGLO 0x6ffffe00
#define DT_CONFIG 0x6ffffefa
#define DT_DEPAUDIT 0x6ffffefb
#define DT_AUDIT 0x6ffffefc
#define DT_PLTPAD 0x6ffffefd
#define DT_MOVETAB 0x6ffffefe
#define DT_SYMINFO 0x6ffffeff
#define DT_ADDRRNGHI 0x6ffffeff
#define DT_RELACOUNT 0x6ffffff9
#define DT_RELCOUNT 0x6ffffffa
#define DT_FLAGS_1 0x6ffffffb
#define DT_VERDEF 0x6ffffffc
#define DT_VERDEFNUM 0x6ffffffd
#define DT_VERNEED 0x6ffffffe
#define DT_VERNEEDNUM 0x6fffffff
#define DT_AUXILIARY 0x7ffffffd
#define DT_USED 0x7ffffffe
#define DT_FILTER 0x7fffffff
/*
* GNU extensions
*/
#define DT_VERSYM 0x6ffffff0
/*
* DT_FEATURE_1 values
*/
#define DTF_1_PARINIT 0x1
#define DTF_1_CONFEXP 0x2
/*
* DT_POSFLAG_1 values
*/
#define DF_P1_LAZYLOAD 0x1
#define DF_P1_GROUPPERM 0x2
/*
* DT_FLAGS_1 values
*/
#define DF_1_NOW 0x00000001
#define DF_1_GLOBAL 0x00000002
#define DF_1_GROUP 0x00000004
#define DF_1_NODELETE 0x00000008
#define DF_1_LOADFLTR 0x00000010
#define DF_1_INITFIRST 0x00000020
#define DF_1_NOOPEN 0x00000040
#define DF_1_ORIGIN 0x00000080
#define DF_1_DIRECT 0x00000100
#define DF_1_TRANS 0x00000200
#define DF_1_INTERPOSE 0x00000400
#define DF_1_NODEFLIB 0x00000800
#define DF_1_NODUMP 0x00001000
#define DF_1_CONFALT 0x00002000
#define DF_1_ENDFILTEE 0x00004000
#define DF_1_DISPRELDNE 0x00008000
#define DF_1_DISPRELPND 0x00010000
/*
* Syminfo structure
*/
typedef struct {
Elf32_Half si_boundto;
Elf32_Half si_flags;
} Elf32_Syminfo;
#if __LIBELF64
typedef struct {
Elf64_Half si_boundto;
Elf64_Half si_flags;
} Elf64_Syminfo;
#endif /* __LIBELF64 */
/*
* Syminfo version (stored in unused first entry)
*/
#define SYMINFO_NONE 0
#define SYMINFO_CURRENT 1
#define SYMINFO_NUM 2
/*
* si_boundto special values
*/
#define SYMINFO_BT_LOWRESERVE 0xff00
#define SYMINFO_BT_PARENT 0xfffe /* bound to parent */
#define SYMINFO_BT_SELF 0xffff /* bound to self */
/*
* si_flags
*/
#define SYMINFO_FLG_DIRECT 0x01 /* bound to an object */
#define SYMINFO_FLG_PASSTHRU 0x02 /* pass-thru symbol */
#define SYMINFO_FLG_COPY 0x04 /* result of a copy relocation */
#define SYMINFO_FLG_LAZYLOAD 0x08 /* bound to lazy-loaded object */
/*
* Version definitions
*/
typedef struct {
Elf32_Half vd_version;
Elf32_Half vd_flags;
Elf32_Half vd_ndx;
Elf32_Half vd_cnt;
Elf32_Word vd_hash;
Elf32_Word vd_aux;
Elf32_Word vd_next;
} Elf32_Verdef;
typedef struct {
Elf32_Word vda_name;
Elf32_Word vda_next;
} Elf32_Verdaux;
typedef struct {
Elf32_Half vn_version;
Elf32_Half vn_cnt;
Elf32_Word vn_file;
Elf32_Word vn_aux;
Elf32_Word vn_next;
} Elf32_Verneed;
typedef struct {
Elf32_Word vna_hash;
Elf32_Half vna_flags;
Elf32_Half vna_other;
Elf32_Word vna_name;
Elf32_Word vna_next;
} Elf32_Vernaux;
typedef Elf32_Half Elf32_Versym;
#if __LIBELF64
typedef struct {
Elf64_Half vd_version;
Elf64_Half vd_flags;
Elf64_Half vd_ndx;
Elf64_Half vd_cnt;
Elf64_Word vd_hash;
Elf64_Word vd_aux;
Elf64_Word vd_next;
} Elf64_Verdef;
typedef struct {
Elf64_Word vda_name;
Elf64_Word vda_next;
} Elf64_Verdaux;
typedef struct {
Elf64_Half vn_version;
Elf64_Half vn_cnt;
Elf64_Word vn_file;
Elf64_Word vn_aux;
Elf64_Word vn_next;
} Elf64_Verneed;
typedef struct {
Elf64_Word vna_hash;
Elf64_Half vna_flags;
Elf64_Half vna_other;
Elf64_Word vna_name;
Elf64_Word vna_next;
} Elf64_Vernaux;
typedef Elf64_Half Elf64_Versym;
#endif /* __LIBELF64 */
/*
* vd_version
*/
#define VER_DEF_NONE 0
#define VER_DEF_CURRENT 1
#define VER_DEF_NUM 2
/*
* vn_version
*/
#define VER_NEED_NONE 0
#define VER_NEED_CURRENT 1
#define VER_NEED_NUM 2
/*
* vd_flags / vna_flags
*/
#define VER_FLG_BASE 0x1 /* vd_flags only */
#define VER_FLG_WEAK 0x2
/*
* Elf*_Versym special values
*/
#define VER_NDX_LOCAL 0
#define VER_NDX_GLOBAL 1
/*
* Solaris extensions
*/
/*
* Move section
*/
#if __LIBELF64
typedef struct {
Elf32_Lword m_value;
Elf32_Word m_info;
Elf32_Word m_poffset;
Elf32_Half m_repeat;
Elf32_Half m_stride;
} Elf32_Move;
typedef struct {
Elf64_Lword m_value;
Elf64_Xword m_info;
Elf64_Xword m_poffset;
Elf64_Half m_repeat;
Elf64_Half m_stride;
} Elf64_Move;
#define ELF32_M_SYM(info) ((info)>>8)
#define ELF32_M_SIZE(info) ((unsigned char)(info))
#define ELF32_M_INFO(sym, sz) (((sym)<<8)+(unsigned char)(sz))
#define ELF64_M_SYM(info) ((Elf64_Xword)(info)>>8)
#define ELF64_M_SIZE(info) ((unsigned char)(info))
#define ELF64_M_INFO(sym, sz) (((Elf64_Xword)(sym)<<8)+(unsigned char)(sz))
#endif /* __LIBELF64 */
/*
* Capabilities
*/
typedef struct {
Elf32_Word c_tag;
union {
Elf32_Word c_val;
Elf32_Addr c_ptr;
} c_un;
} Elf32_Cap;
#if __LIBELF64
typedef struct {
Elf64_Xword c_tag;
union {
Elf64_Xword c_val;
Elf64_Addr c_ptr;
} c_un;
} Elf64_Cap;
#endif /* __LIBELF64 */
#define CA_SUNW_NULL 0 /* c_un ignored */
#define CA_SUNW_HW_1 1 /* c_un.c_val */
#define CA_SUNW_SF_1 2 /* c_un.c_val */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _ELF_REPL_H */

130
external/libelf/include/libelf/sys_elf.h vendored Normal file
View File

@@ -0,0 +1,130 @@
/*
* lib/sys_elf.h.w32 - internal configuration file for W32 port
* Copyright (C) 2004 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @(#) $Id: sys_elf.h.w32,v 1.2 2006/09/07 15:55:42 michael Exp $
*/
/*
* DO NOT USE THIS IN APPLICATIONS - #include <libelf.h> INSTEAD!
*/
/* Define to `<elf.h>' or `<sys/elf.h>' if one of them is present */
#undef __LIBELF_HEADER_ELF_H
/* Define if Elf32_Dyn is declared in <link.h> */
#undef __LIBELF_NEED_LINK_H
/* Define if Elf32_Dyn is declared in <sys/link.h> */
#undef __LIBELF_NEED_SYS_LINK_H
/* Define if you want 64-bit support (and your system supports it) */
#define __LIBELF64 1
/* Define if you want 64-bit support, and are running IRIX */
#undef __LIBELF64_IRIX
/* Define if you want 64-bit support, and are running Linux */
#undef __LIBELF64_LINUX
/* Define if you want symbol versioning (and your system supports it) */
#define __LIBELF_SYMBOL_VERSIONS 1
/* Define to a 64-bit signed integer type if one exists */
#define __libelf_i64_t __int64
/* Define to a 64-bit unsigned integer type if one exists */
#define __libelf_u64_t unsigned __int64
/* Define to a 32-bit signed integer type if one exists */
#define __libelf_i32_t int
/* Define to a 32-bit unsigned integer type if one exists */
#define __libelf_u32_t unsigned int
/* Define to a 16-bit signed integer type if one exists */
#define __libelf_i16_t short int
/* Define to a 16-bit unsigned integer type if one exists */
#define __libelf_u16_t unsigned short int
/*
* Ok, now get the correct instance of elf.h...
*/
#ifdef __LIBELF_HEADER_ELF_H
# include __LIBELF_HEADER_ELF_H
#else /* __LIBELF_HEADER_ELF_H */
# if __LIBELF_INTERNAL__
# include <elf_repl.h>
# else /* __LIBELF_INTERNAL__ */
# include <libelf/elf_repl.h>
# endif /* __LIBELF_INTERNAL__ */
#endif /* __LIBELF_HEADER_ELF_H */
/*
* On some systems, <elf.h> is severely broken. Try to fix it.
*/
#ifdef __LIBELF_HEADER_ELF_H
# ifndef ELF32_FSZ_ADDR
# define ELF32_FSZ_ADDR 4
# define ELF32_FSZ_HALF 2
# define ELF32_FSZ_OFF 4
# define ELF32_FSZ_SWORD 4
# define ELF32_FSZ_WORD 4
# endif /* ELF32_FSZ_ADDR */
# ifndef STN_UNDEF
# define STN_UNDEF 0
# endif /* STN_UNDEF */
# if __LIBELF64
# ifndef ELF64_FSZ_ADDR
# define ELF64_FSZ_ADDR 8
# define ELF64_FSZ_HALF 2
# define ELF64_FSZ_OFF 8
# define ELF64_FSZ_SWORD 4
# define ELF64_FSZ_WORD 4
# define ELF64_FSZ_SXWORD 8
# define ELF64_FSZ_XWORD 8
# endif /* ELF64_FSZ_ADDR */
# ifndef ELF64_ST_BIND
# define ELF64_ST_BIND(i) ((i)>>4)
# define ELF64_ST_TYPE(i) ((i)&0xf)
# define ELF64_ST_INFO(b,t) (((b)<<4)+((t)&0xf))
# endif /* ELF64_ST_BIND */
# ifndef ELF64_R_SYM
# define ELF64_R_SYM(i) ((Elf64_Xword)(i)>>32)
# define ELF64_R_TYPE(i) ((i)&0xffffffffL)
# define ELF64_R_INFO(s,t) (((Elf64_Xword)(s)<<32)+((t)&0xffffffffL))
# endif /* ELF64_R_SYM */
# if __LIBELF64_LINUX
typedef __libelf_u64_t Elf64_Addr;
typedef __libelf_u16_t Elf64_Half;
typedef __libelf_u64_t Elf64_Off;
typedef __libelf_i32_t Elf64_Sword;
typedef __libelf_u32_t Elf64_Word;
typedef __libelf_i64_t Elf64_Sxword;
typedef __libelf_u64_t Elf64_Xword;
# endif /* __LIBELF64_LINUX */
# endif /* __LIBELF64 */
#endif /* __LIBELF_HEADER_ELF_H */

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external/libelf/libelf.vcxproj vendored Normal file
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<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ClCompile Include="src\32.newphdr.c" />
<ClCompile Include="src\32.xlatetof.c" />
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<ClCompile Include="src\assert.c" />
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external/libelf/src/32.fsize.c vendored Normal file
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/*
32.fsize.c - implementation of the elf{32,64}_fsize(3) functions.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.fsize.c,v 1.13 2008/05/23 08:15:33 michael Exp $";
#endif /* lint */
const size_t
_elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2] = {
/* ELFCLASS32 */
{
/* version 1 */
{
{ sizeof(unsigned char), sizeof(unsigned char) },
{ sizeof(Elf32_Addr), sizeof(__ext_Elf32_Addr) },
{ sizeof(Elf32_Dyn), sizeof(__ext_Elf32_Dyn) },
{ sizeof(Elf32_Ehdr), sizeof(__ext_Elf32_Ehdr) },
{ sizeof(Elf32_Half), sizeof(__ext_Elf32_Half) },
{ sizeof(Elf32_Off), sizeof(__ext_Elf32_Off) },
{ sizeof(Elf32_Phdr), sizeof(__ext_Elf32_Phdr) },
{ sizeof(Elf32_Rela), sizeof(__ext_Elf32_Rela) },
{ sizeof(Elf32_Rel), sizeof(__ext_Elf32_Rel) },
{ sizeof(Elf32_Shdr), sizeof(__ext_Elf32_Shdr) },
{ sizeof(Elf32_Sword), sizeof(__ext_Elf32_Sword) },
{ sizeof(Elf32_Sym), sizeof(__ext_Elf32_Sym) },
{ sizeof(Elf32_Word), sizeof(__ext_Elf32_Word) },
{ 0, 0 }, /* there is no Elf32_Sxword */
{ 0, 0 }, /* there is no Elf32_Xword */
/* XXX: check Solaris values */
{ 0, 0 }, /* Elf32_Verdef/Verdaux size varies */
{ 0, 0 }, /* Elf32_Verneed/Vernaux size varies */
},
},
#if __LIBELF64
/* ELFCLASS64 */
{
/* version 1 */
{
{ sizeof(unsigned char), sizeof(unsigned char) },
{ sizeof(Elf64_Addr), sizeof(__ext_Elf64_Addr) },
{ sizeof(Elf64_Dyn), sizeof(__ext_Elf64_Dyn) },
{ sizeof(Elf64_Ehdr), sizeof(__ext_Elf64_Ehdr) },
{ sizeof(Elf64_Half), sizeof(__ext_Elf64_Half) },
{ sizeof(Elf64_Off), sizeof(__ext_Elf64_Off) },
{ sizeof(Elf64_Phdr), sizeof(__ext_Elf64_Phdr) },
{ sizeof(Elf64_Rela), sizeof(__ext_Elf64_Rela) },
{ sizeof(Elf64_Rel), sizeof(__ext_Elf64_Rel) },
{ sizeof(Elf64_Shdr), sizeof(__ext_Elf64_Shdr) },
{ sizeof(Elf64_Sword), sizeof(__ext_Elf64_Sword) },
{ sizeof(Elf64_Sym), sizeof(__ext_Elf64_Sym) },
{ sizeof(Elf64_Word), sizeof(__ext_Elf64_Word) },
{ sizeof(Elf64_Sxword), sizeof(__ext_Elf64_Sxword) },
{ sizeof(Elf64_Xword), sizeof(__ext_Elf64_Xword) },
/* XXX: check Solaris values */
{ 0, 0 }, /* Elf64_Verdef/Verdaux size varies */
{ 0, 0 }, /* Elf64_Verneed/Vernaux size varies */
},
},
#endif /* __LIBELF64 */
};
static size_t
_elf_fsize(unsigned cls, Elf_Type type, unsigned ver) {
size_t n = 0;
if (!valid_version(ver)) {
seterr(ERROR_UNKNOWN_VERSION);
}
else if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
}
else if (!(n = _fsize(cls, ver, type))) {
seterr(ERROR_UNKNOWN_TYPE);
}
return n;
}
size_t
elf32_fsize(Elf_Type type, size_t count, unsigned ver) {
return count * _elf_fsize(ELFCLASS32, type, ver);
}
#if __LIBELF64
size_t
elf64_fsize(Elf_Type type, size_t count, unsigned ver) {
return count * _elf_fsize(ELFCLASS64, type, ver);
}
size_t
gelf_fsize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (valid_class(elf->e_class)) {
return count * _elf_fsize(elf->e_class, type, ver);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
}
return 0;
}
/*
* Extension: report memory size
*/
size_t
gelf_msize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
size_t n;
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (!valid_class(elf->e_class)) {
seterr(ERROR_UNKNOWN_CLASS);
}
else if (!valid_version(ver)) {
seterr(ERROR_UNKNOWN_VERSION);
}
else if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
}
else if (!(n = _msize(elf->e_class, ver, type))) {
seterr(ERROR_UNKNOWN_TYPE);
}
else {
return count * n;
}
}
return 0;
}
#endif /* __LIBELF64 */

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external/libelf/src/32.getehdr.c vendored Normal file
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@@ -0,0 +1,56 @@
/*
32.getehdr.c - implementation of the elf{32,64}_getehdr(3) functions.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.getehdr.c,v 1.9 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
char*
_elf_getehdr(Elf *elf, unsigned cls) {
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class != cls) {
seterr(ERROR_CLASSMISMATCH);
}
else if (elf->e_ehdr || _elf_cook(elf)) {
return elf->e_ehdr;
}
return NULL;
}
Elf32_Ehdr*
elf32_getehdr(Elf *elf) {
return (Elf32_Ehdr*)_elf_getehdr(elf, ELFCLASS32);
}
#if __LIBELF64
Elf64_Ehdr*
elf64_getehdr(Elf *elf) {
return (Elf64_Ehdr*)_elf_getehdr(elf, ELFCLASS64);
}
#endif /* __LIBELF64 */

56
external/libelf/src/32.getphdr.c vendored Normal file
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@@ -0,0 +1,56 @@
/*
32.getphdr.c - implementation of the elf{32,64}_getphdr(3) functions.
Copyright (C) 1995 - 2000 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.getphdr.c,v 1.11 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
char*
_elf_getphdr(Elf *elf, unsigned cls) {
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class != cls) {
seterr(ERROR_CLASSMISMATCH);
}
else if (elf->e_ehdr || _elf_cook(elf)) {
return elf->e_phdr;
}
return NULL;
}
Elf32_Phdr*
elf32_getphdr(Elf *elf) {
return (Elf32_Phdr*)_elf_getphdr(elf, ELFCLASS32);
}
#if __LIBELF64
Elf64_Phdr*
elf64_getphdr(Elf *elf) {
return (Elf64_Phdr*)_elf_getphdr(elf, ELFCLASS64);
}
#endif /* __LIBELF64 */

58
external/libelf/src/32.getshdr.c vendored Normal file
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@@ -0,0 +1,58 @@
/*
32.getshdr.c - implementation of the elf{32,64}_getshdr(3) functions.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.getshdr.c,v 1.10 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
Elf32_Shdr*
elf32_getshdr(Elf_Scn *scn) {
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf);
elf_assert(scn->s_elf->e_magic == ELF_MAGIC);
if (scn->s_elf->e_class == ELFCLASS32) {
return &scn->s_shdr32;
}
seterr(ERROR_CLASSMISMATCH);
return NULL;
}
#if __LIBELF64
Elf64_Shdr*
elf64_getshdr(Elf_Scn *scn) {
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf);
elf_assert(scn->s_elf->e_magic == ELF_MAGIC);
if (scn->s_elf->e_class == ELFCLASS64) {
return &scn->s_shdr64;
}
seterr(ERROR_CLASSMISMATCH);
return NULL;
}
#endif /* __LIBELF64 */

80
external/libelf/src/32.newehdr.c vendored Normal file
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@@ -0,0 +1,80 @@
/*
* 32.newehdr.c - implementation of the elf{32,64}_newehdr(3) functions.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.newehdr.c,v 1.16 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
static char*
_elf_newehdr(Elf *elf, unsigned cls) {
size_t size;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_readable) {
return _elf_getehdr(elf, cls);
}
else if (!elf->e_ehdr) {
size = _msize(cls, _elf_version, ELF_T_EHDR);
elf_assert(size);
if ((elf->e_ehdr = (char*)malloc(size))) {
memset(elf->e_ehdr, 0, size);
elf->e_ehdr_flags |= ELF_F_DIRTY;
elf->e_kind = ELF_K_ELF;
elf->e_class = cls;
return elf->e_ehdr;
}
seterr(ERROR_MEM_EHDR);
}
else if (elf->e_class != cls) {
seterr(ERROR_CLASSMISMATCH);
}
else {
elf_assert(elf->e_kind == ELF_K_ELF);
return elf->e_ehdr;
}
return NULL;
}
Elf32_Ehdr*
elf32_newehdr(Elf *elf) {
return (Elf32_Ehdr*)_elf_newehdr(elf, ELFCLASS32);
}
#if __LIBELF64
Elf64_Ehdr*
elf64_newehdr(Elf *elf) {
return (Elf64_Ehdr*)_elf_newehdr(elf, ELFCLASS64);
}
unsigned long
gelf_newehdr(Elf *elf, int cls) {
if (!valid_class(cls) || !_msize(cls, _elf_version, ELF_T_EHDR)) {
seterr(ERROR_UNKNOWN_CLASS);
return 0;
}
return (unsigned long)_elf_newehdr(elf, cls);
}
#endif /* __LIBELF64 */

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external/libelf/src/32.newphdr.c vendored Normal file
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@@ -0,0 +1,118 @@
/*
* 32.newphdr.c - implementation of the elf{32,64}_newphdr(3) functions.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.newphdr.c,v 1.16 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
static char*
_elf_newphdr(Elf *elf, size_t count, unsigned cls) {
size_t extcount = 0;
Elf_Scn *scn = NULL;
char *phdr = NULL;
size_t size;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!elf->e_ehdr && !elf->e_readable) {
seterr(ERROR_NOEHDR);
}
else if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class != cls) {
seterr(ERROR_CLASSMISMATCH);
}
else if (elf->e_ehdr || _elf_cook(elf)) {
size = _msize(cls, _elf_version, ELF_T_PHDR);
elf_assert(size);
if (!(scn = _elf_first_scn(elf))) {
return NULL;
}
if (count) {
if (!(phdr = (char*)malloc(count * size))) {
seterr(ERROR_MEM_PHDR);
return NULL;
}
memset(phdr, 0, count * size);
}
elf_assert(elf->e_ehdr);
elf->e_phnum = count;
if (count >= PN_XNUM) {
/*
* get NULL section (create it if necessary)
*/
extcount = count;
count = PN_XNUM;
}
if (cls == ELFCLASS32) {
((Elf32_Ehdr*)elf->e_ehdr)->e_phnum = count;
scn->s_shdr32.sh_info = extcount;
}
#if __LIBELF64
else if (cls == ELFCLASS64) {
((Elf64_Ehdr*)elf->e_ehdr)->e_phnum = count;
scn->s_shdr64.sh_info = extcount;
}
#endif /* __LIBELF64 */
else {
seterr(ERROR_UNIMPLEMENTED);
if (phdr) {
free(phdr);
}
return NULL;
}
if (elf->e_phdr) {
free(elf->e_phdr);
}
elf->e_phdr = phdr;
elf->e_phdr_flags |= ELF_F_DIRTY;
elf->e_ehdr_flags |= ELF_F_DIRTY;
scn->s_scn_flags |= ELF_F_DIRTY;
return phdr;
}
return NULL;
}
Elf32_Phdr*
elf32_newphdr(Elf *elf, size_t count) {
return (Elf32_Phdr*)_elf_newphdr(elf, count, ELFCLASS32);
}
#if __LIBELF64
Elf64_Phdr*
elf64_newphdr(Elf *elf, size_t count) {
return (Elf64_Phdr*)_elf_newphdr(elf, count, ELFCLASS64);
}
unsigned long
gelf_newphdr(Elf *elf, size_t phnum) {
if (!valid_class(elf->e_class)) {
seterr(ERROR_UNKNOWN_CLASS);
return 0;
}
return (unsigned long)_elf_newphdr(elf, phnum, elf->e_class);
}
#endif /* __LIBELF64 */

438
external/libelf/src/32.xlatetof.c vendored Normal file
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@@ -0,0 +1,438 @@
/*
* 32.xlatetof.c - implementation of the elf32_xlateto[fm](3) functions.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: 32.xlatetof.c,v 1.27 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
/*
* Ugly, ugly
*/
#ifdef _WIN32
# define Cat2(a,b)a##b
# define Cat3(a,b,c)a##b##c
# define Ex1(m1,m2,a,b)m1##m2(a##b)
# define Ex2(m1,m2,a,b,c)m1##m2(a,b##c)
#else /* _WIN32 */
# define x
# if defined/**/x
# define Cat2(a,b)a##b
# define Cat3(a,b,c)a##b##c
# define Ex1(m1,m2,a,b)m1##m2(a##b)
# define Ex2(m1,m2,a,b,c)m1##m2(a,b##c)
# else
# define Cat2(a,b)a/**/b
# define Cat3(a,b,c)a/**/b/**/c
# define Ex1(m1,m2,a,b)m1/**/m2(a/**/b)
# define Ex2(m1,m2,a,b,c)m1/**/m2(a,b/**/c)
# endif
# undef x
#endif /* _WIN32 */
/*
* auxiliary macros for execution order reversal
*/
#define seq_forw(a,b) a b
#define seq_back(a,b) b a
/*
* function instantiator
*/
#define copy_type_e_io(name,e,io,tfrom,tto,copy) \
static size_t \
Cat3(name,_,io)(unsigned char *dst, const unsigned char *src, size_t n) { \
n /= sizeof(tfrom); \
if (n && dst) { \
const tfrom *from = (const tfrom*)src; \
tto *to = (tto*)dst; \
size_t i; \
\
if (sizeof(tfrom) < sizeof(tto)) { \
from += n; \
to += n; \
for (i = 0; i < n; i++) { \
--from; \
--to; \
copy(e,io,seq_back) \
} \
} \
else { \
for (i = 0; i < n; i++) { \
copy(e,io,seq_forw) \
from++; \
to++; \
} \
} \
} \
return n * sizeof(tto); \
}
#define copy_type_e(name,e,type,copy) \
copy_type_e_io(name,e,tom,Cat2(__ext_,type),type,copy) \
copy_type_e_io(name,e,tof,type,Cat2(__ext_,type),copy)
/*
* master function instantiator
*/
#define copy_type(name,version,type,copy) \
copy_type_e(Cat3(name,L,version),L,type,copy) \
copy_type_e(Cat3(name,M,version),M,type,copy)
/*
* scalar copying
*/
#define copy_scalar_tom(type) *to = Cat2(__load_,type)(*from);
#define copy_scalar_tof(type) Cat2(__store_,type)(*to, *from);
/*
* structure member copying
*/
#define copy_tom(mb,type) to->mb = Cat2(__load_,type)(from->mb);
#define copy_tof(mb,type) Cat2(__store_,type)(to->mb, from->mb);
/*
* structure member copying (direction independent)
*/
#define copy_byte(e,io,mb) to->mb = from->mb;
#define copy_addr(e,io,mb) Ex2(copy_,io,mb,u32,e)
#define copy_half(e,io,mb) Ex2(copy_,io,mb,u16,e)
#define copy_off(e,io,mb) Ex2(copy_,io,mb,u32,e)
#define copy_sword(e,io,mb) Ex2(copy_,io,mb,i32,e)
#define copy_word(e,io,mb) Ex2(copy_,io,mb,u32,e)
#define copy_arr(e,io,mb) \
array_copy(to->mb, sizeof(to->mb), from->mb, sizeof(from->mb));
/*
* scalar copying (direction independent)
* these macros are used as `copy' arguments to copy_type()
*/
#define copy_addr_11(e,io,seq) Ex1(copy_scalar_,io,u32,e)
#define copy_half_11(e,io,seq) Ex1(copy_scalar_,io,u16,e)
#define copy_off_11(e,io,seq) Ex1(copy_scalar_,io,u32,e)
#define copy_sword_11(e,io,seq) Ex1(copy_scalar_,io,i32,e)
#define copy_word_11(e,io,seq) Ex1(copy_scalar_,io,u32,e)
/*
* structure copying (direction independent)
* these macros are used as `copy' arguments to copy_type()
*/
#define copy_dyn_11(e,io,seq) \
seq(copy_sword(e,io,d_tag), \
seq(copy_addr(e,io,d_un.d_ptr), \
nullcopy))
#define copy_ehdr_11(e,io,seq) \
seq(copy_arr(e,io,e_ident), \
seq(copy_half(e,io,e_type), \
seq(copy_half(e,io,e_machine), \
seq(copy_word(e,io,e_version), \
seq(copy_addr(e,io,e_entry), \
seq(copy_off(e,io,e_phoff), \
seq(copy_off(e,io,e_shoff), \
seq(copy_word(e,io,e_flags), \
seq(copy_half(e,io,e_ehsize), \
seq(copy_half(e,io,e_phentsize), \
seq(copy_half(e,io,e_phnum), \
seq(copy_half(e,io,e_shentsize), \
seq(copy_half(e,io,e_shnum), \
seq(copy_half(e,io,e_shstrndx), \
nullcopy))))))))))))))
#define copy_phdr_11(e,io,seq) \
seq(copy_word(e,io,p_type), \
seq(copy_off(e,io,p_offset), \
seq(copy_addr(e,io,p_vaddr), \
seq(copy_addr(e,io,p_paddr), \
seq(copy_word(e,io,p_filesz), \
seq(copy_word(e,io,p_memsz), \
seq(copy_word(e,io,p_flags), \
seq(copy_word(e,io,p_align), \
nullcopy))))))))
#define copy_rela_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_word(e,io,r_info), \
seq(copy_sword(e,io,r_addend), \
nullcopy)))
#define copy_rel_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_word(e,io,r_info), \
nullcopy))
#define copy_shdr_11(e,io,seq) \
seq(copy_word(e,io,sh_name), \
seq(copy_word(e,io,sh_type), \
seq(copy_word(e,io,sh_flags), \
seq(copy_addr(e,io,sh_addr), \
seq(copy_off(e,io,sh_offset), \
seq(copy_word(e,io,sh_size), \
seq(copy_word(e,io,sh_link), \
seq(copy_word(e,io,sh_info), \
seq(copy_word(e,io,sh_addralign), \
seq(copy_word(e,io,sh_entsize), \
nullcopy))))))))))
#define copy_sym_11(e,io,seq) \
seq(copy_word(e,io,st_name), \
seq(copy_addr(e,io,st_value), \
seq(copy_word(e,io,st_size), \
seq(copy_byte(e,io,st_info), \
seq(copy_byte(e,io,st_other), \
seq(copy_half(e,io,st_shndx), \
nullcopy))))))
#define nullcopy /**/
static size_t
byte_copy(unsigned char *dst, const unsigned char *src, size_t n) {
if (n && dst && dst != src) {
#if HAVE_BROKEN_MEMMOVE
size_t i;
if (dst >= src + n || dst + n <= src) {
memcpy(dst, src, n);
}
else if (dst < src) {
for (i = 0; i < n; i++) {
dst[i] = src[i];
}
}
else {
for (i = n; --i; ) {
dst[i] = src[i];
}
}
#else /* HAVE_BROKEN_MEMMOVE */
memmove(dst, src, n);
#endif /* HAVE_BROKEN_MEMMOVE */
}
return n;
}
static void
array_copy(unsigned char *dst, size_t dlen, const unsigned char *src, size_t slen) {
byte_copy(dst, src, dlen < slen ? dlen : slen);
if (dlen > slen) {
memset(dst + slen, 0, dlen - slen);
}
}
/*
* instantiate copy functions
*/
copy_type(addr_32,_,Elf32_Addr,copy_addr_11)
copy_type(half_32,_,Elf32_Half,copy_half_11)
copy_type(off_32,_,Elf32_Off,copy_off_11)
copy_type(sword_32,_,Elf32_Sword,copy_sword_11)
copy_type(word_32,_,Elf32_Word,copy_word_11)
copy_type(dyn_32,11,Elf32_Dyn,copy_dyn_11)
copy_type(ehdr_32,11,Elf32_Ehdr,copy_ehdr_11)
copy_type(phdr_32,11,Elf32_Phdr,copy_phdr_11)
copy_type(rela_32,11,Elf32_Rela,copy_rela_11)
copy_type(rel_32,11,Elf32_Rel,copy_rel_11)
copy_type(shdr_32,11,Elf32_Shdr,copy_shdr_11)
copy_type(sym_32,11,Elf32_Sym,copy_sym_11)
typedef size_t (*xlator)(unsigned char*, const unsigned char*, size_t);
typedef xlator xltab[ELF_T_NUM][2];
/*
* translation table (32-bit, version 1 -> version 1)
*/
#if PIC
static xltab
#else /* PIC */
static const xltab
#endif /* PIC */
xlate32_11[/*encoding*/] = {
{
{ byte_copy, byte_copy },
{ addr_32L__tom, addr_32L__tof },
{ dyn_32L11_tom, dyn_32L11_tof },
{ ehdr_32L11_tom, ehdr_32L11_tof },
{ half_32L__tom, half_32L__tof },
{ off_32L__tom, off_32L__tof },
{ phdr_32L11_tom, phdr_32L11_tof },
{ rela_32L11_tom, rela_32L11_tof },
{ rel_32L11_tom, rel_32L11_tof },
{ shdr_32L11_tom, shdr_32L11_tof },
{ sword_32L__tom, sword_32L__tof },
{ sym_32L11_tom, sym_32L11_tof },
{ word_32L__tom, word_32L__tof },
{ 0, 0 }, /* there is no Sxword */
{ 0, 0 }, /* there is no Xword */
#if __LIBELF_SYMBOL_VERSIONS
{ _elf_verdef_32L11_tom, _elf_verdef_32L11_tof },
{ _elf_verneed_32L11_tom, _elf_verneed_32L11_tof },
#else /* __LIBELF_SYMBOL_VERSIONS */
{ 0, 0 },
{ 0, 0 },
#endif /* __LIBELF_SYMBOL_VERSIONS */
},
{
{ byte_copy, byte_copy },
{ addr_32M__tom, addr_32M__tof },
{ dyn_32M11_tom, dyn_32M11_tof },
{ ehdr_32M11_tom, ehdr_32M11_tof },
{ half_32M__tom, half_32M__tof },
{ off_32M__tom, off_32M__tof },
{ phdr_32M11_tom, phdr_32M11_tof },
{ rela_32M11_tom, rela_32M11_tof },
{ rel_32M11_tom, rel_32M11_tof },
{ shdr_32M11_tom, shdr_32M11_tof },
{ sword_32M__tom, sword_32M__tof },
{ sym_32M11_tom, sym_32M11_tof },
{ word_32M__tom, word_32M__tof },
{ 0, 0 }, /* there is no Sxword */
{ 0, 0 }, /* there is no Xword */
#if __LIBELF_SYMBOL_VERSIONS
{ _elf_verdef_32M11_tom, _elf_verdef_32M11_tof },
{ _elf_verneed_32M11_tom, _elf_verneed_32M11_tof },
#else /* __LIBELF_SYMBOL_VERSIONS */
{ 0, 0 },
{ 0, 0 },
#endif /* __LIBELF_SYMBOL_VERSIONS */
},
};
/*
* main translation table (32-bit)
*/
#if PIC
static xltab*
#else /* PIC */
static const xltab *const
#endif /* PIC */
xlate32[EV_CURRENT - EV_NONE][EV_CURRENT - EV_NONE] = {
{ xlate32_11, },
};
#define translator(sv,dv,enc,type,d) \
(xlate32[(sv) - EV_NONE - 1] \
[(dv) - EV_NONE - 1] \
[(enc) - ELFDATA2LSB] \
[(type) - ELF_T_BYTE] \
[d])
/*
* destination buffer size
*/
size_t
_elf32_xltsize(const Elf_Data *src, unsigned dv, unsigned encode, int tof) {
Elf_Type type = src->d_type;
unsigned sv = src->d_version;
xlator op;
if (!valid_version(sv) || !valid_version(dv)) {
seterr(ERROR_UNKNOWN_VERSION);
return (size_t)-1;
}
if (tof) {
/*
* Encoding doesn't really matter (the translator only looks at
* the source, which resides in memory), but we need a proper
* encoding to select a translator...
*/
encode = ELFDATA2LSB;
}
else if (!valid_encoding(encode)) {
seterr(ERROR_UNKNOWN_ENCODING);
return (size_t)-1;
}
if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
return (size_t)-1;
}
if (!(op = translator(sv, dv, encode, type, tof))) {
seterr(ERROR_UNKNOWN_TYPE);
return (size_t)-1;
}
return (*op)(NULL, src->d_buf, src->d_size);
}
/*
* direction-independent translation
*/
static Elf_Data*
elf32_xlate(Elf_Data *dst, const Elf_Data *src, unsigned encode, int tof) {
Elf_Type type;
int dv;
int sv;
size_t dsize;
size_t tmp;
xlator op;
if (!src || !dst) {
return NULL;
}
if (!src->d_buf || !dst->d_buf) {
seterr(ERROR_NULLBUF);
return NULL;
}
if (!valid_encoding(encode)) {
seterr(ERROR_UNKNOWN_ENCODING);
return NULL;
}
sv = src->d_version;
dv = dst->d_version;
if (!valid_version(sv) || !valid_version(dv)) {
seterr(ERROR_UNKNOWN_VERSION);
return NULL;
}
type = src->d_type;
if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
return NULL;
}
op = translator(sv, dv, encode, type, tof);
if (!op) {
seterr(ERROR_UNKNOWN_TYPE);
return NULL;
}
dsize = (*op)(NULL, src->d_buf, src->d_size);
if (dsize == (size_t)-1) {
return NULL;
}
if (dst->d_size < dsize) {
seterr(ERROR_DST2SMALL);
return NULL;
}
if (dsize) {
tmp = (*op)(dst->d_buf, src->d_buf, src->d_size);
if (tmp == (size_t)-1) {
return NULL;
}
elf_assert(tmp == dsize);
}
dst->d_size = dsize;
dst->d_type = type;
return dst;
}
/*
* finally, the "official" translation functions
*/
Elf_Data*
elf32_xlatetom(Elf_Data *dst, const Elf_Data *src, unsigned encode) {
return elf32_xlate(dst, src, encode, 0);
}
Elf_Data*
elf32_xlatetof(Elf_Data *dst, const Elf_Data *src, unsigned encode) {
return elf32_xlate(dst, src, encode, 1);
}

512
external/libelf/src/64.xlatetof.c vendored Normal file
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@@ -0,0 +1,512 @@
/*
* 64.xlatetof.c - implementation of the elf64_xlateto[fm](3) functions.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: 64.xlatetof.c,v 1.27 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
/*
* Ugly, ugly
*/
#ifdef _WIN32
# define Cat2(a,b)a##b
# define Cat3(a,b,c)a##b##c
# define Ex1(m1,m2,a,b)m1##m2(a##b)
# define Ex2(m1,m2,a,b,c)m1##m2(a,b##c)
#else /* _WIN32 */
# define x
# if defined/**/x
# define Cat2(a,b)a##b
# define Cat3(a,b,c)a##b##c
# define Ex1(m1,m2,a,b)m1##m2(a##b)
# define Ex2(m1,m2,a,b,c)m1##m2(a,b##c)
# else
# define Cat2(a,b)a/**/b
# define Cat3(a,b,c)a/**/b/**/c
# define Ex1(m1,m2,a,b)m1/**/m2(a/**/b)
# define Ex2(m1,m2,a,b,c)m1/**/m2(a,b/**/c)
# endif
# undef x
#endif /* _WIN32 */
/*
* auxiliary macros for execution order reversal
*/
#define seq_forw(a,b) a b
#define seq_back(a,b) b a
/*
* function instantiator
*/
#define copy_type_e_io(name,e,io,tfrom,tto,copy) \
static size_t \
Cat3(name,_,io)(unsigned char *dst, const unsigned char *src, size_t n) { \
n /= sizeof(tfrom); \
if (n && dst) { \
const tfrom *from = (const tfrom*)src; \
tto *to = (tto*)dst; \
size_t i; \
\
if (sizeof(tfrom) < sizeof(tto)) { \
from += n; \
to += n; \
for (i = 0; i < n; i++) { \
--from; \
--to; \
copy(e,io,seq_back) \
} \
} \
else { \
for (i = 0; i < n; i++) { \
copy(e,io,seq_forw) \
from++; \
to++; \
} \
} \
} \
return n * sizeof(tto); \
}
#define copy_type_e(name,e,type,copy) \
copy_type_e_io(name,e,tom,Cat2(__ext_,type),type,copy) \
copy_type_e_io(name,e,tof,type,Cat2(__ext_,type),copy)
/*
* master function instantiator
*/
#define copy_type(name,version,type,copy) \
copy_type_e(Cat3(name,L,version),L,type,copy) \
copy_type_e(Cat3(name,M,version),M,type,copy)
/*
* scalar copying
*/
#define copy_scalar_tom(type) *to = Cat2(__load_,type)(*from);
#define copy_scalar_tof(type) Cat2(__store_,type)(*to, *from);
/*
* structure member copying
*/
#define copy_tom(mb,type) to->mb = Cat2(__load_,type)(from->mb);
#define copy_tof(mb,type) Cat2(__store_,type)(to->mb, from->mb);
/*
* structure member copying (direction independent)
*/
#define copy_byte(e,io,mb) to->mb = from->mb;
#define copy_addr(e,io,mb) Ex2(copy_,io,mb,u64,e)
#define copy_half(e,io,mb) Ex2(copy_,io,mb,u16,e)
#define copy_off(e,io,mb) Ex2(copy_,io,mb,u64,e)
#define copy_sword(e,io,mb) Ex2(copy_,io,mb,i32,e)
#define copy_word(e,io,mb) Ex2(copy_,io,mb,u32,e)
#define copy_sxword(e,io,mb) Ex2(copy_,io,mb,i64,e)
#define copy_xword(e,io,mb) Ex2(copy_,io,mb,u64,e)
#define copy_arr(e,io,mb) \
array_copy(to->mb, sizeof(to->mb), from->mb, sizeof(from->mb));
/*
* scalar copying (direction independent)
* these macros are used as `copy' arguments to copy_type()
*/
#define copy_addr_11(e,io,seq) Ex1(copy_scalar_,io,u64,e)
#define copy_half_11(e,io,seq) Ex1(copy_scalar_,io,u16,e)
#define copy_off_11(e,io,seq) Ex1(copy_scalar_,io,u64,e)
#define copy_sword_11(e,io,seq) Ex1(copy_scalar_,io,i32,e)
#define copy_word_11(e,io,seq) Ex1(copy_scalar_,io,u32,e)
#define copy_sxword_11(e,io,seq)Ex1(copy_scalar_,io,i64,e)
#define copy_xword_11(e,io,seq) Ex1(copy_scalar_,io,u64,e)
/*
* structure copying (direction independent)
* these macros are used as `copy' arguments to copy_type()
*/
#define copy_dyn_11(e,io,seq) \
seq(copy_xword(e,io,d_tag), \
seq(copy_addr(e,io,d_un.d_ptr), \
nullcopy))
#define copy_ehdr_11(e,io,seq) \
seq(copy_arr(e,io,e_ident), \
seq(copy_half(e,io,e_type), \
seq(copy_half(e,io,e_machine), \
seq(copy_word(e,io,e_version), \
seq(copy_addr(e,io,e_entry), \
seq(copy_off(e,io,e_phoff), \
seq(copy_off(e,io,e_shoff), \
seq(copy_word(e,io,e_flags), \
seq(copy_half(e,io,e_ehsize), \
seq(copy_half(e,io,e_phentsize), \
seq(copy_half(e,io,e_phnum), \
seq(copy_half(e,io,e_shentsize), \
seq(copy_half(e,io,e_shnum), \
seq(copy_half(e,io,e_shstrndx), \
nullcopy))))))))))))))
#define copy_phdr_11(e,io,seq) \
seq(copy_word(e,io,p_type), \
seq(copy_word(e,io,p_flags), \
seq(copy_off(e,io,p_offset), \
seq(copy_addr(e,io,p_vaddr), \
seq(copy_addr(e,io,p_paddr), \
seq(copy_xword(e,io,p_filesz), \
seq(copy_xword(e,io,p_memsz), \
seq(copy_xword(e,io,p_align), \
nullcopy))))))))
#if __LIBELF64_IRIX
#define copy_rela_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_word(e,io,r_sym), \
seq(copy_byte(e,io,r_ssym), \
seq(copy_byte(e,io,r_type3), \
seq(copy_byte(e,io,r_type2), \
seq(copy_byte(e,io,r_type), \
seq(copy_sxword(e,io,r_addend), \
nullcopy)))))))
#define copy_rel_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_word(e,io,r_sym), \
seq(copy_byte(e,io,r_ssym), \
seq(copy_byte(e,io,r_type3), \
seq(copy_byte(e,io,r_type2), \
seq(copy_byte(e,io,r_type), \
nullcopy))))))
#else /* __LIBELF64_IRIX */
#define copy_rela_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_xword(e,io,r_info), \
seq(copy_sxword(e,io,r_addend), \
nullcopy)))
#define copy_rel_11(e,io,seq) \
seq(copy_addr(e,io,r_offset), \
seq(copy_xword(e,io,r_info), \
nullcopy))
#endif /* __LIBELF64_IRIX */
#define copy_shdr_11(e,io,seq) \
seq(copy_word(e,io,sh_name), \
seq(copy_word(e,io,sh_type), \
seq(copy_xword(e,io,sh_flags), \
seq(copy_addr(e,io,sh_addr), \
seq(copy_off(e,io,sh_offset), \
seq(copy_xword(e,io,sh_size), \
seq(copy_word(e,io,sh_link), \
seq(copy_word(e,io,sh_info), \
seq(copy_xword(e,io,sh_addralign), \
seq(copy_xword(e,io,sh_entsize), \
nullcopy))))))))))
#define copy_sym_11(e,io,seq) \
seq(copy_word(e,io,st_name), \
seq(copy_byte(e,io,st_info), \
seq(copy_byte(e,io,st_other), \
seq(copy_half(e,io,st_shndx), \
seq(copy_addr(e,io,st_value), \
seq(copy_xword(e,io,st_size), \
nullcopy))))))
#define nullcopy /**/
static size_t
byte_copy(unsigned char *dst, const unsigned char *src, size_t n) {
if (n && dst && dst != src) {
#if HAVE_BROKEN_MEMMOVE
size_t i;
if (dst >= src + n || dst + n <= src) {
memcpy(dst, src, n);
}
else if (dst < src) {
for (i = 0; i < n; i++) {
dst[i] = src[i];
}
}
else {
for (i = n; --i; ) {
dst[i] = src[i];
}
}
#else /* HAVE_BROKEN_MEMMOVE */
memmove(dst, src, n);
#endif /* HAVE_BROKEN_MEMMOVE */
}
return n;
}
static void
array_copy(unsigned char *dst, size_t dlen, const unsigned char *src, size_t slen) {
byte_copy(dst, src, dlen < slen ? dlen : slen);
if (dlen > slen) {
memset(dst + slen, 0, dlen - slen);
}
}
/*
* instantiate copy functions
*/
copy_type(addr_64,_,Elf64_Addr,copy_addr_11)
copy_type(half_64,_,Elf64_Half,copy_half_11)
copy_type(off_64,_,Elf64_Off,copy_off_11)
copy_type(sword_64,_,Elf64_Sword,copy_sword_11)
copy_type(word_64,_,Elf64_Word,copy_word_11)
copy_type(sxword_64,_,Elf64_Sxword,copy_sxword_11)
copy_type(xword_64,_,Elf64_Xword,copy_xword_11)
copy_type(dyn_64,11,Elf64_Dyn,copy_dyn_11)
copy_type(ehdr_64,11,Elf64_Ehdr,copy_ehdr_11)
copy_type(phdr_64,11,Elf64_Phdr,copy_phdr_11)
copy_type(rela_64,11,Elf64_Rela,copy_rela_11)
copy_type(rel_64,11,Elf64_Rel,copy_rel_11)
copy_type(shdr_64,11,Elf64_Shdr,copy_shdr_11)
copy_type(sym_64,11,Elf64_Sym,copy_sym_11)
typedef size_t (*xlator)(unsigned char*, const unsigned char*, size_t);
typedef xlator xltab[ELF_T_NUM][2];
/*
* translation table (64-bit, version 1 -> version 1)
*/
#if PIC
static xltab
#else /* PIC */
static const xltab
#endif /* PIC */
xlate64_11[/*encoding*/] = {
{
{ byte_copy, byte_copy },
{ addr_64L__tom, addr_64L__tof },
{ dyn_64L11_tom, dyn_64L11_tof },
{ ehdr_64L11_tom, ehdr_64L11_tof },
{ half_64L__tom, half_64L__tof },
{ off_64L__tom, off_64L__tof },
{ phdr_64L11_tom, phdr_64L11_tof },
{ rela_64L11_tom, rela_64L11_tof },
{ rel_64L11_tom, rel_64L11_tof },
{ shdr_64L11_tom, shdr_64L11_tof },
{ sword_64L__tom, sword_64L__tof },
{ sym_64L11_tom, sym_64L11_tof },
{ word_64L__tom, word_64L__tof },
{ sxword_64L__tom, sxword_64L__tof },
{ xword_64L__tom, xword_64L__tof },
#if __LIBELF_SYMBOL_VERSIONS
{ _elf_verdef_64L11_tom, _elf_verdef_64L11_tof },
{ _elf_verneed_64L11_tom, _elf_verneed_64L11_tof },
#else /* __LIBELF_SYMBOL_VERSIONS */
{ 0, 0 },
{ 0, 0 },
#endif /* __LIBELF_SYMBOL_VERSIONS */
},
{
{ byte_copy, byte_copy },
{ addr_64M__tom, addr_64M__tof },
{ dyn_64M11_tom, dyn_64M11_tof },
{ ehdr_64M11_tom, ehdr_64M11_tof },
{ half_64M__tom, half_64M__tof },
{ off_64M__tom, off_64M__tof },
{ phdr_64M11_tom, phdr_64M11_tof },
{ rela_64M11_tom, rela_64M11_tof },
{ rel_64M11_tom, rel_64M11_tof },
{ shdr_64M11_tom, shdr_64M11_tof },
{ sword_64M__tom, sword_64M__tof },
{ sym_64M11_tom, sym_64M11_tof },
{ word_64M__tom, word_64M__tof },
{ sxword_64M__tom, sxword_64M__tof },
{ xword_64M__tom, xword_64M__tof },
#if __LIBELF_SYMBOL_VERSIONS
{ _elf_verdef_64M11_tom, _elf_verdef_64M11_tof },
{ _elf_verneed_64M11_tom, _elf_verneed_64M11_tof },
#else /* __LIBELF_SYMBOL_VERSIONS */
{ 0, 0 },
{ 0, 0 },
#endif /* __LIBELF_SYMBOL_VERSIONS */
},
};
/*
* main translation table (64-bit)
*/
#if PIC
static xltab*
#else /* PIC */
static const xltab *const
#endif /* PIC */
xlate64[EV_CURRENT - EV_NONE][EV_CURRENT - EV_NONE] = {
{ xlate64_11, },
};
#define translator(sv,dv,enc,type,d) \
(xlate64[(sv) - EV_NONE - 1] \
[(dv) - EV_NONE - 1] \
[(enc) - ELFDATA2LSB] \
[(type) - ELF_T_BYTE] \
[d])
/*
* destination buffer size
*/
size_t
_elf64_xltsize(const Elf_Data *src, unsigned dv, unsigned encode, int tof) {
Elf_Type type = src->d_type;
unsigned sv = src->d_version;
xlator op;
if (!valid_version(sv) || !valid_version(dv)) {
seterr(ERROR_UNKNOWN_VERSION);
return (size_t)-1;
}
if (tof) {
/*
* Encoding doesn't really matter (the translator only looks at
* the source, which resides in memory), but we need a proper
* encoding to select a translator...
*/
encode = ELFDATA2LSB;
}
else if (!valid_encoding(encode)) {
seterr(ERROR_UNKNOWN_ENCODING);
return (size_t)-1;
}
if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
return (size_t)-1;
}
if (!(op = translator(sv, dv, encode, type, tof))) {
seterr(ERROR_UNKNOWN_TYPE);
return (size_t)-1;
}
return (*op)(NULL, src->d_buf, src->d_size);
}
/*
* direction-independent translation
*/
static Elf_Data*
elf64_xlate(Elf_Data *dst, const Elf_Data *src, unsigned encode, int tof) {
Elf_Type type;
int dv;
int sv;
size_t dsize;
size_t tmp;
xlator op;
if (!src || !dst) {
return NULL;
}
if (!src->d_buf || !dst->d_buf) {
seterr(ERROR_NULLBUF);
return NULL;
}
if (!valid_encoding(encode)) {
seterr(ERROR_UNKNOWN_ENCODING);
return NULL;
}
sv = src->d_version;
dv = dst->d_version;
if (!valid_version(sv) || !valid_version(dv)) {
seterr(ERROR_UNKNOWN_VERSION);
return NULL;
}
type = src->d_type;
if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
return NULL;
}
op = translator(sv, dv, encode, type, tof);
if (!op) {
seterr(ERROR_UNKNOWN_TYPE);
return NULL;
}
dsize = (*op)(NULL, src->d_buf, src->d_size);
if (dsize == (size_t)-1) {
return NULL;
}
if (dst->d_size < dsize) {
seterr(ERROR_DST2SMALL);
return NULL;
}
if (dsize) {
tmp = (*op)(dst->d_buf, src->d_buf, src->d_size);
if (tmp == (size_t)-1) {
return NULL;
}
elf_assert(tmp == dsize);
}
dst->d_size = dsize;
dst->d_type = type;
return dst;
}
/*
* finally, the "official" translation functions
*/
Elf_Data*
elf64_xlatetom(Elf_Data *dst, const Elf_Data *src, unsigned encode) {
return elf64_xlate(dst, src, encode, 0);
}
Elf_Data*
elf64_xlatetof(Elf_Data *dst, const Elf_Data *src, unsigned encode) {
return elf64_xlate(dst, src, encode, 1);
}
Elf_Data*
gelf_xlatetom(Elf *elf, Elf_Data *dst, const Elf_Data *src, unsigned encode) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class == ELFCLASS32) {
return elf32_xlatetom(dst, src, encode);
}
else if (elf->e_class == ELFCLASS64) {
return elf64_xlatetom(dst, src, encode);
}
else if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
}
return NULL;
}
Elf_Data*
gelf_xlatetof(Elf *elf, Elf_Data *dst, const Elf_Data *src, unsigned encode) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class == ELFCLASS32) {
return elf32_xlatetof(dst, src, encode);
}
else if (elf->e_class == ELFCLASS64) {
return elf64_xlatetof(dst, src, encode);
}
else if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
}
return NULL;
}
#endif /* __LIBELF64__ */

33
external/libelf/src/assert.c vendored Normal file
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@@ -0,0 +1,33 @@
/*
assert.c - assert function for libelf.
Copyright (C) 1999 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: assert.c,v 1.5 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#include <stdio.h>
void
__elf_assert(const char *file, unsigned line, const char *cond) {
fprintf(stderr, "%s:%u: libelf assertion failure: %s\n",
file, line, cond);
abort();
}

429
external/libelf/src/begin.c vendored Normal file
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@@ -0,0 +1,429 @@
/*
* begin.c - implementation of the elf_begin(3) and elf_memory(3) functions.
* Copyright (C) 1995 - 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: begin.c,v 1.22 2009/11/01 13:04:19 michael Exp $";
#endif /* lint */
static const Elf _elf_init = INIT_ELF;
static const char fmag[] = ARFMAG;
static unsigned long
getnum(const char *str, size_t len, int base, size_t *err) {
unsigned long result = 0;
while (len && *str == ' ') {
str++; len--;
}
while (len && *str >= '0' && (*str - '0') < base) {
result = base * result + *str++ - '0'; len--;
}
while (len && *str == ' ') {
str++; len--;
}
if (len) {
*err = len;
}
return result;
}
static void
_elf_init_ar(Elf *elf) {
struct ar_hdr *hdr;
size_t offset;
size_t size;
size_t err = 0;
elf->e_kind = ELF_K_AR;
elf->e_idlen = SARMAG;
elf->e_off = SARMAG;
/* process special members */
offset = SARMAG;
while (!elf->e_strtab && offset + sizeof(*hdr) <= elf->e_size) {
hdr = (struct ar_hdr*)(elf->e_data + offset);
if (memcmp(hdr->ar_fmag, fmag, sizeof(fmag) - 1)) {
break;
}
if (hdr->ar_name[0] != '/') {
break;
}
size = getnum(hdr->ar_size, sizeof(hdr->ar_size), 10, &err);
if (err || !size) {
break;
}
offset += sizeof(*hdr);
if (offset + size > elf->e_size) {
break;
}
if (hdr->ar_name[1] == '/' && hdr->ar_name[2] == ' ') {
elf->e_strtab = elf->e_data + offset;
elf->e_strlen = size;
break;
}
if (hdr->ar_name[1] != ' ') {
break;
}
/*
* Windows (.lib) archives provide two symbol tables
* The first one is the one we want.
*/
if (!elf->e_symtab) {
elf->e_symtab = elf->e_data + offset;
elf->e_symlen = size;
}
offset += size + (size & 1);
}
}
static Elf_Arhdr*
_elf_arhdr(Elf *arf) {
struct ar_hdr *hdr;
Elf_Arhdr *arhdr;
size_t namelen;
size_t tmp;
char *name;
size_t err = 0;
if (arf->e_off == arf->e_size) {
/* no error! */
return NULL;
}
if (arf->e_off < 0 || arf->e_off > arf->e_size) {
seterr(ERROR_OUTSIDE);
return NULL;
}
if (arf->e_off + sizeof(*hdr) > arf->e_size) {
seterr(ERROR_TRUNC_ARHDR);
return NULL;
}
elf_assert(arf->e_data != NULL);
hdr = (struct ar_hdr*)(arf->e_data + arf->e_off);
if (memcmp(hdr->ar_fmag, fmag, sizeof(fmag) - 1)) {
seterr(ERROR_ARFMAG);
return NULL;
}
name = hdr->ar_name;
for (namelen = sizeof(hdr->ar_name); namelen > 0; namelen--) {
if (name[namelen - 1] != ' ') {
break;
}
}
if (name[0] == '/') {
if (name[1] >= '0' && name[1] <= '9') {
if (!arf->e_strtab) {
seterr(ERROR_ARSTRTAB);
return NULL;
}
tmp = getnum(&name[1], namelen - 1, 10, &err);
if (err) {
seterr(ERROR_ARSPECIAL);
return NULL;
}
if (tmp < 0 || tmp >= arf->e_strlen) {
seterr(ERROR_ARSTRTAB);
return NULL;
}
for (namelen = tmp; namelen < arf->e_strlen; namelen++) {
if (arf->e_strtab[namelen] == '/') {
break;
}
}
if (namelen == arf->e_strlen) {
seterr(ERROR_ARSTRTAB);
return NULL;
}
name = arf->e_strtab + tmp;
namelen -= tmp;
}
else if (namelen != 1 && !(namelen == 2 && name[1] == '/')) {
seterr(ERROR_ARSPECIAL);
return NULL;
}
}
else if (namelen > 0 && name[namelen - 1] == '/') {
namelen--;
}
/* XXX some broken software omits the trailing slash
else {
namelen = 0;
}
*/
if (!(arhdr = (Elf_Arhdr*)malloc(sizeof(*arhdr) +
sizeof(hdr->ar_name) + namelen + 2))) {
seterr(ERROR_MEM_ARHDR);
return NULL;
}
arhdr->ar_name = NULL;
arhdr->ar_rawname = (char*)(arhdr + 1);
arhdr->ar_date = getnum(hdr->ar_date, sizeof(hdr->ar_date), 10, &err);
arhdr->ar_uid = getnum(hdr->ar_uid, sizeof(hdr->ar_uid), 10, &err);
arhdr->ar_gid = getnum(hdr->ar_gid, sizeof(hdr->ar_gid), 10, &err);
arhdr->ar_mode = getnum(hdr->ar_mode, sizeof(hdr->ar_mode), 8, &err);
arhdr->ar_size = getnum(hdr->ar_size, sizeof(hdr->ar_size), 10, &err);
if (err) {
free(arhdr);
seterr(ERROR_ARHDR);
return NULL;
}
if (arf->e_off + sizeof(struct ar_hdr) + arhdr->ar_size > arf->e_size) {
free(arhdr);
seterr(ERROR_TRUNC_MEMBER);
return NULL;
}
memcpy(arhdr->ar_rawname, hdr->ar_name, sizeof(hdr->ar_name));
arhdr->ar_rawname[sizeof(hdr->ar_name)] = '\0';
if (namelen) {
arhdr->ar_name = arhdr->ar_rawname + sizeof(hdr->ar_name) + 1;
memcpy(arhdr->ar_name, name, namelen);
arhdr->ar_name[namelen] = '\0';
}
return arhdr;
}
static void
_elf_check_type(Elf *elf, size_t size) {
elf->e_idlen = size;
if (size >= EI_NIDENT && !memcmp(elf->e_data, ELFMAG, SELFMAG)) {
elf->e_kind = ELF_K_ELF;
elf->e_idlen = EI_NIDENT;
elf->e_class = elf->e_data[EI_CLASS];
elf->e_encoding = elf->e_data[EI_DATA];
elf->e_version = elf->e_data[EI_VERSION];
}
else if (size >= SARMAG && !memcmp(elf->e_data, ARMAG, SARMAG)) {
_elf_init_ar(elf);
}
}
Elf*
elf_begin(int fd, Elf_Cmd cmd, Elf *ref) {
Elf_Arhdr *arhdr = NULL;
size_t size = 0;
off_t off;
Elf *elf;
elf_assert(_elf_init.e_magic == ELF_MAGIC);
if (_elf_version == EV_NONE) {
seterr(ERROR_VERSION_UNSET);
return NULL;
}
else if (cmd == ELF_C_NULL) {
return NULL;
}
else if (cmd == ELF_C_WRITE) {
ref = NULL;
}
else if (cmd != ELF_C_READ && cmd != ELF_C_RDWR) {
seterr(ERROR_INVALID_CMD);
return NULL;
}
else if (ref) {
elf_assert(ref->e_magic == ELF_MAGIC);
if (!ref->e_readable || (cmd == ELF_C_RDWR && !ref->e_writable)) {
seterr(ERROR_CMDMISMATCH);
return NULL;
}
if (ref->e_kind != ELF_K_AR) {
ref->e_count++;
return ref;
}
if (cmd == ELF_C_RDWR) {
seterr(ERROR_MEMBERWRITE);
return NULL;
}
if (ref->e_memory) {
fd = ref->e_fd;
}
else if (fd != ref->e_fd) {
seterr(ERROR_FDMISMATCH);
return NULL;
}
if (!(arhdr = _elf_arhdr(ref))) {
return NULL;
}
size = arhdr->ar_size;
}
else if ((off = lseek(fd, (off_t)0, SEEK_END)) == (off_t)-1
|| (off_t)(size = off) != off) {
seterr(ERROR_IO_GETSIZE);
return NULL;
}
if (!(elf = (Elf*)malloc(sizeof(Elf)))) {
seterr(ERROR_MEM_ELF);
return NULL;
}
*elf = _elf_init;
elf->e_fd = fd;
elf->e_parent = ref;
elf->e_size = elf->e_dsize = size;
if (cmd != ELF_C_READ) {
elf->e_writable = 1;
}
if (cmd != ELF_C_WRITE) {
elf->e_readable = 1;
}
else {
return elf;
}
if (ref) {
size_t offset = ref->e_off + sizeof(struct ar_hdr);
Elf *xelf;
elf_assert(arhdr);
elf->e_arhdr = arhdr;
elf->e_base = ref->e_base + offset;
/*
* Share the archive's memory image. To avoid
* multiple independent elf descriptors if the
* same member is requested twice, scan the list
* of open members for duplicates.
*
* I don't know how SVR4 handles this case. Don't rely on it.
*/
for (xelf = ref->e_members; xelf; xelf = xelf->e_link) {
elf_assert(xelf->e_parent == ref);
if (xelf->e_base == elf->e_base) {
free(arhdr);
free(elf);
xelf->e_count++;
return xelf;
}
}
if (size == 0) {
elf->e_data = NULL;
}
#if 1
else {
/*
* Archive members may be misaligned. Freezing them will
* cause libelf to allocate buffers for translated data,
* which should be properly aligned in all cases.
*/
elf_assert(!ref->e_cooked);
elf->e_data = elf->e_rawdata = ref->e_data + offset;
}
#else
else if (ref->e_data == ref->e_rawdata) {
elf_assert(!ref->e_cooked);
/*
* archive is frozen - freeze member, too
*/
elf->e_data = elf->e_rawdata = ref->e_data + offset;
}
else {
elf_assert(!ref->e_memory);
elf->e_data = ref->e_data + offset;
/*
* The member's memory image may have been modified if
* the member has been processed before. Since we need the
* original image, we have to re-read the archive file.
* Will fail if the archive's file descriptor is disabled.
*/
if (!ref->e_cooked) {
ref->e_cooked = 1;
}
else if (!_elf_read(ref, elf->e_data, offset, size)) {
free(arhdr);
free(elf);
return NULL;
}
}
#endif
elf->e_next = offset + size + (size & 1);
elf->e_disabled = ref->e_disabled;
elf->e_memory = ref->e_memory;
/* parent/child linking */
elf->e_link = ref->e_members;
ref->e_members = elf;
ref->e_count++;
/* Slowaris compatibility - do not rely on this! */
ref->e_off = elf->e_next;
}
else if (size) {
#if HAVE_MMAP
/*
* Using mmap on writable files will interfere with elf_update
*/
if (!elf->e_writable && (elf->e_data = _elf_mmap(elf))) {
elf->e_unmap_data = 1;
}
else
#endif /* HAVE_MMAP */
if (!(elf->e_data = _elf_read(elf, NULL, 0, size))) {
free(elf);
return NULL;
}
}
_elf_check_type(elf, size);
return elf;
}
Elf*
elf_memory(char *image, size_t size) {
Elf *elf;
elf_assert(_elf_init.e_magic == ELF_MAGIC);
if (_elf_version == EV_NONE) {
seterr(ERROR_VERSION_UNSET);
return NULL;
}
else if (size == 0 || image == NULL) {
/* TODO: set error code? */
return NULL;
}
if (!(elf = (Elf*)malloc(sizeof(Elf)))) {
seterr(ERROR_MEM_ELF);
return NULL;
}
*elf = _elf_init;
elf->e_size = elf->e_dsize = size;
elf->e_data = elf->e_rawdata = image;
elf->e_readable = 1;
elf->e_disabled = 1;
elf->e_memory = 1;
_elf_check_type(elf, size);
return elf;
}
#if __LIBELF64
int
gelf_getclass(Elf *elf) {
if (elf && elf->e_kind == ELF_K_ELF && valid_class(elf->e_class)) {
return elf->e_class;
}
return ELFCLASSNONE;
}
#endif /* __LIBELF64 */

95
external/libelf/src/byteswap.h vendored Normal file
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/*
byteswap.h - functions and macros for byte swapping.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: byteswap.h,v 1.7 2008/05/23 08:15:34 michael Exp $ */
#ifndef _BYTESWAP_H
#define _BYTESWAP_H
#define lu(from,i,s) (((__libelf_u32_t)((unsigned char*)(from))[i])<<(s))
#define li(from,i,s) (((__libelf_i32_t)(( signed char*)(from))[i])<<(s))
#define __load_u16L(from) ((__libelf_u32_t) \
(lu(from,1,8) | lu(from,0,0)))
#define __load_u16M(from) ((__libelf_u32_t) \
(lu(from,0,8) | lu(from,1,0)))
#define __load_i16L(from) ((__libelf_i32_t) \
(li(from,1,8) | lu(from,0,0)))
#define __load_i16M(from) ((__libelf_i32_t) \
(li(from,0,8) | lu(from,1,0)))
#define __load_u32L(from) ((__libelf_u32_t) \
(lu(from,3,24) | lu(from,2,16) | lu(from,1,8) | lu(from,0,0)))
#define __load_u32M(from) ((__libelf_u32_t) \
(lu(from,0,24) | lu(from,1,16) | lu(from,2,8) | lu(from,3,0)))
#define __load_i32L(from) ((__libelf_i32_t) \
(li(from,3,24) | lu(from,2,16) | lu(from,1,8) | lu(from,0,0)))
#define __load_i32M(from) ((__libelf_i32_t) \
(li(from,0,24) | lu(from,1,16) | lu(from,2,8) | lu(from,3,0)))
#define su(to,i,v,s) (((char*)(to))[i]=((__libelf_u32_t)(v)>>(s)))
#define si(to,i,v,s) (((char*)(to))[i]=((__libelf_i32_t)(v)>>(s)))
#define __store_u16L(to,v) \
(su(to,1,v,8), su(to,0,v,0))
#define __store_u16M(to,v) \
(su(to,0,v,8), su(to,1,v,0))
#define __store_i16L(to,v) \
(si(to,1,v,8), si(to,0,v,0))
#define __store_i16M(to,v) \
(si(to,0,v,8), si(to,1,v,0))
#define __store_u32L(to,v) \
(su(to,3,v,24), su(to,2,v,16), su(to,1,v,8), su(to,0,v,0))
#define __store_u32M(to,v) \
(su(to,0,v,24), su(to,1,v,16), su(to,2,v,8), su(to,3,v,0))
#define __store_i32L(to,v) \
(si(to,3,v,24), si(to,2,v,16), si(to,1,v,8), si(to,0,v,0))
#define __store_i32M(to,v) \
(si(to,0,v,24), si(to,1,v,16), si(to,2,v,8), si(to,3,v,0))
#if __LIBELF64
/*
* conversion functions from swap64.c
*/
extern __libelf_u64_t _elf_load_u64L(const unsigned char *from);
extern __libelf_u64_t _elf_load_u64M(const unsigned char *from);
extern __libelf_i64_t _elf_load_i64L(const unsigned char *from);
extern __libelf_i64_t _elf_load_i64M(const unsigned char *from);
extern void _elf_store_u64L(unsigned char *to, __libelf_u64_t v);
extern void _elf_store_u64M(unsigned char *to, __libelf_u64_t v);
extern void _elf_store_i64L(unsigned char *to, __libelf_u64_t v);
extern void _elf_store_i64M(unsigned char *to, __libelf_u64_t v);
/*
* aliases for existing conversion code
*/
#define __load_u64L _elf_load_u64L
#define __load_u64M _elf_load_u64M
#define __load_i64L _elf_load_i64L
#define __load_i64M _elf_load_i64M
#define __store_u64L _elf_store_u64L
#define __store_u64M _elf_store_u64M
#define __store_i64L _elf_store_i64L
#define __store_i64M _elf_store_i64M
#endif /* __LIBELF64 */
#endif /* _BYTESWAP_H */

178
external/libelf/src/checksum.c vendored Normal file
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/*
checksum.c - implementation of the elf{32,64}_checksum(3) functions.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: checksum.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
/*
* Compatibility note:
*
* The algorithm used in {elf32,elf64,gelf}_checksum() does not seem to
* be documented. I hope I got it right. My implementation does the
* following:
*
* - skip sections that do not have the SHF_ALLOC flag set
* - skip sections of type SHT_NULL, SHT_NOBITS, SHT_DYNSYM and
* SHT_DYNAMIC
* - add all data bytes from the remaining sections, modulo 2**32
* - add upper and lower half of the result
* - subtract 0xffff if the result is > 0xffff
* - if any error occurs, return 0L
*/
static int
skip_section(Elf_Scn *scn, unsigned cls) {
if (cls == ELFCLASS32) {
Elf32_Shdr *shdr = &scn->s_shdr32;
if (!(shdr->sh_flags & SHF_ALLOC)) {
return 1;
}
switch (shdr->sh_type) {
case SHT_NULL:
case SHT_NOBITS:
/* Solaris seems to ignore these, too */
case SHT_DYNSYM:
case SHT_DYNAMIC:
return 1;
}
}
#if __LIBELF64
else if (cls == ELFCLASS64) {
Elf64_Shdr *shdr = &scn->s_shdr64;
if (!(shdr->sh_flags & SHF_ALLOC)) {
return 1;
}
switch (shdr->sh_type) {
case SHT_NULL:
case SHT_NOBITS:
/* Solaris seems to ignore these, too */
case SHT_DYNSYM:
case SHT_DYNAMIC:
return 1;
}
}
#endif /* __LIBELF64 */
else {
seterr(ERROR_UNIMPLEMENTED);
}
return 0;
}
static long
add_bytes(unsigned char *ptr, size_t len) {
long csum = 0;
while (len--) {
csum += *ptr++;
}
return csum;
}
static long
_elf_csum(Elf *elf) {
long csum = 0;
Elf_Data *data;
Elf_Scn *scn;
if (!elf->e_ehdr && !_elf_cook(elf)) {
/* propagate errors from _elf_cook */
return 0L;
}
seterr(0);
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
if (scn->s_index == SHN_UNDEF || skip_section(scn, elf->e_class)) {
continue;
}
data = NULL;
while ((data = elf_getdata(scn, data))) {
if (data->d_size) {
if (data->d_buf == NULL) {
seterr(ERROR_NULLBUF);
return 0L;
}
csum += add_bytes(data->d_buf, data->d_size);
}
}
}
if (_elf_errno) {
return 0L;
}
csum = (csum & 0xffff) + ((csum >> 16) & 0xffff);
if (csum > 0xffff) {
csum -= 0xffff;
}
return csum;
}
long
elf32_checksum(Elf *elf) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class != ELFCLASS32) {
seterr(ERROR_CLASSMISMATCH);
}
else {
return _elf_csum(elf);
}
}
return 0L;
}
#if __LIBELF64
long
elf64_checksum(Elf *elf) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_class != ELFCLASS64) {
seterr(ERROR_CLASSMISMATCH);
}
else {
return _elf_csum(elf);
}
}
return 0L;
}
long
gelf_checksum(Elf *elf) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (!valid_class(elf->e_class)) {
seterr(ERROR_UNKNOWN_CLASS);
}
else {
return _elf_csum(elf);
}
}
return 0L;
}
#endif /* __LIBELF64 */

71
external/libelf/src/cntl.c vendored Normal file
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@@ -0,0 +1,71 @@
/*
cntl.c - implementation of the elf_cntl(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: cntl.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
int
elf_cntl(Elf *elf, Elf_Cmd cmd) {
Elf_Scn *scn;
Elf *child;
if (!elf) {
return -1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (cmd == ELF_C_FDREAD) {
if (!elf->e_readable) {
seterr(ERROR_WRONLY);
return -1;
}
}
else if (cmd != ELF_C_FDDONE) {
seterr(ERROR_INVALID_CMD);
return -1;
}
if (elf->e_disabled) {
return 0;
}
if (elf->e_kind == ELF_K_AR) {
for (child = elf->e_members; child; child = child->e_link) {
elf_assert(elf == child->e_parent);
if (elf_cntl(child, cmd)) {
return -1;
}
}
}
else if (elf->e_kind == ELF_K_ELF && cmd == ELF_C_FDREAD) {
if (!elf->e_ehdr && !_elf_cook(elf)) {
return -1;
}
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
if (scn->s_index == SHN_UNDEF || scn->s_type == SHT_NULL) {
continue;
}
else if (!elf_getdata(scn, NULL)) {
return -1;
}
}
}
elf->e_disabled = 1;
return 0;
}

164
external/libelf/src/config.h vendored Normal file
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/*
* lib/config.h.w32 - configuration file for W32 port
* Copyright (C) 2004 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* @(#) $Id: config.h.w32,v 1.2 2006/09/07 15:55:42 michael Exp $
*/
/* Define to empty if the keyword does not work. */
#undef const
/* Define if you have a working `mmap' system call. */
#undef HAVE_MMAP
/* Define to `long' if <sys/types.h> doesn't define. */
#undef off_t
/* Define to `unsigned' if <sys/types.h> doesn't define. */
#undef size_t
/* Define if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define if you want to include extra debugging code */
#define ENABLE_DEBUG 1
/* Define if memmove() does not copy overlapping arrays correctly */
#undef HAVE_BROKEN_MEMMOVE
/* Define if you have the catgets function. */
#undef HAVE_CATGETS
/* Define if you have the dgettext function. */
#undef HAVE_DGETTEXT
/* Define if you have the memset function. */
#define HAVE_MEMSET 1
/* Define if struct nlist is declared in <elf.h> or <sys/elf.h> */
#undef HAVE_STRUCT_NLIST_DECLARATION
/* Define if Elf32_Dyn is declared in <link.h> */
#undef __LIBELF_NEED_LINK_H
/* Define if Elf32_Dyn is declared in <sys/link.h> */
#undef __LIBELF_NEED_SYS_LINK_H
/* Define to `<elf.h>' or `<sys/elf.h>' if one of them is present */
#undef __LIBELF_HEADER_ELF_H
/* Define if you want 64-bit support (and your system supports it) */
#define __LIBELF64 1
/* Define if you want 64-bit support, and are running IRIX */
#undef __LIBELF64_IRIX
/* Define if you want 64-bit support, and are running Linux */
#undef __LIBELF64_LINUX
/* Define if you want symbol versioning (and your system supports it) */
#define __LIBELF_SYMBOL_VERSIONS 1
/* Define if symbol versioning uses Sun section type (SHT_SUNW_*) */
#define __LIBELF_SUN_SYMBOL_VERSIONS 1
/* Define if symbol versioning uses GNU section types (SHT_GNU_*) */
#undef __LIBELF_GNU_SYMBOL_VERSIONS
/* Define to a 64-bit signed integer type if one exists */
#define __libelf_i64_t __int64
/* Define to a 64-bit unsigned integer type if one exists */
#define __libelf_u64_t unsigned __int64
/* Define to a 32-bit signed integer type if one exists */
#define __libelf_i32_t int
/* Define to a 32-bit unsigned integer type if one exists */
#define __libelf_u32_t unsigned int
/* Define to a 16-bit signed integer type if one exists */
#define __libelf_i16_t short int
/* Define to a 16-bit unsigned integer type if one exists */
#define __libelf_u16_t unsigned short int
/* The number of bytes in a __int64. */
#define SIZEOF___INT64 8
/* The number of bytes in a int. */
#define SIZEOF_INT 4
/* The number of bytes in a long. */
#define SIZEOF_LONG 4
/* The number of bytes in a long long. */
#define SIZEOF_LONG_LONG 0
/* The number of bytes in a short. */
#define SIZEOF_SHORT 2
/* Define if you have the ftruncate function. */
#undef HAVE_FTRUNCATE
/* Define if you have the getpagesize function. */
#undef HAVE_GETPAGESIZE
/* Define if you have the memcmp function. */
#define HAVE_MEMCMP 1
/* Define if you have the memcpy function. */
#define HAVE_MEMCPY 1
/* Define if you have the memmove function. */
#define HAVE_MEMMOVE 1
/* Define if you have the memset function. */
#define HAVE_MEMSET 1
/* Define if you have the <ar.h> header file. */
#undef HAVE_AR_H
/* Define if you have the <elf.h> header file. */
#undef HAVE_ELF_H
/* Define if you have the <fcntl.h> header file. */
#undef HAVE_FCNTL_H
/* Define if you have the <gelf.h> header file. */
#undef HAVE_GELF_H
/* Define if you have the <libelf.h> header file. */
#undef HAVE_LIBELF_H
/* Define if you have the <link.h> header file. */
#undef HAVE_LINK_H
/* Define if you have the <nlist.h> header file. */
#undef HAVE_NLIST_H
/* Define if you have the <sys/elf.h> header file. */
#undef HAVE_SYS_ELF_H
/* Define if you have the <sys/link.h> header file. */
#undef HAVE_SYS_LINK_H
/* Define if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1

501
external/libelf/src/cook.c vendored Normal file
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@@ -0,0 +1,501 @@
/*
* cook.c - read and translate ELF files.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: cook.c,v 1.29 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
const Elf_Scn _elf_scn_init = INIT_SCN;
const Scn_Data _elf_data_init = INIT_DATA;
Elf_Type
_elf_scn_type(unsigned t) {
switch (t) {
case SHT_DYNAMIC: return ELF_T_DYN;
case SHT_DYNSYM: return ELF_T_SYM;
case SHT_HASH: return ELF_T_WORD;
case SHT_REL: return ELF_T_REL;
case SHT_RELA: return ELF_T_RELA;
case SHT_SYMTAB: return ELF_T_SYM;
case SHT_SYMTAB_SHNDX: return ELF_T_WORD; /* XXX: really? */
#if __LIBELF_SYMBOL_VERSIONS
#if __LIBELF_SUN_SYMBOL_VERSIONS
case SHT_SUNW_verdef: return ELF_T_VDEF;
case SHT_SUNW_verneed: return ELF_T_VNEED;
case SHT_SUNW_versym: return ELF_T_HALF;
#else /* __LIBELF_SUN_SYMBOL_VERSIONS */
case SHT_GNU_verdef: return ELF_T_VDEF;
case SHT_GNU_verneed: return ELF_T_VNEED;
case SHT_GNU_versym: return ELF_T_HALF;
#endif /* __LIBELF_SUN_SYMBOL_VERSIONS */
#endif /* __LIBELF_SYMBOL_VERSIONS */
}
return ELF_T_BYTE;
}
/*
* Check for overflow on 32-bit systems
*/
#define overflow(a,b,t) (sizeof(a) < sizeof(t) && (t)(a) != (b))
#define truncerr(t) ((t)==ELF_T_EHDR?ERROR_TRUNC_EHDR: \
((t)==ELF_T_PHDR?ERROR_TRUNC_PHDR: \
ERROR_INTERNAL))
#define memerr(t) ((t)==ELF_T_EHDR?ERROR_MEM_EHDR: \
((t)==ELF_T_PHDR?ERROR_MEM_PHDR: \
ERROR_INTERNAL))
Elf_Data*
_elf_xlatetom(const Elf *elf, Elf_Data *dst, const Elf_Data *src) {
if (elf->e_class == ELFCLASS32) {
return elf32_xlatetom(dst, src, elf->e_encoding);
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
return elf64_xlatetom(dst, src, elf->e_encoding);
}
#endif /* __LIBELF64 */
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
static char*
_elf_item(void *buf, Elf *elf, Elf_Type type, size_t off) {
Elf_Data src, dst;
elf_assert(valid_type(type));
if (off < 0 || off > elf->e_size) {
seterr(ERROR_OUTSIDE);
return NULL;
}
src.d_type = type;
src.d_version = elf->e_version;
src.d_size = _fsize(elf->e_class, src.d_version, type);
elf_assert(src.d_size);
if ((elf->e_size - off) < src.d_size) {
seterr(truncerr(type));
return NULL;
}
dst.d_version = _elf_version;
dst.d_size = _msize(elf->e_class, dst.d_version, type);
elf_assert(dst.d_size);
if (!(dst.d_buf = buf) && !(dst.d_buf = malloc(dst.d_size))) {
seterr(memerr(type));
return NULL;
}
elf_assert(elf->e_data);
if (elf->e_rawdata) {
src.d_buf = elf->e_rawdata + off;
}
else {
src.d_buf = elf->e_data + off;
}
if (_elf_xlatetom(elf, &dst, &src)) {
return (char*)dst.d_buf;
}
if (dst.d_buf != buf) {
free(dst.d_buf);
}
return NULL;
}
static int
_elf_cook_phdr(Elf *elf) {
size_t num, off, entsz;
if (elf->e_class == ELFCLASS32) {
num = ((Elf32_Ehdr*)elf->e_ehdr)->e_phnum;
off = ((Elf32_Ehdr*)elf->e_ehdr)->e_phoff;
entsz = ((Elf32_Ehdr*)elf->e_ehdr)->e_phentsize;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
num = ((Elf64_Ehdr*)elf->e_ehdr)->e_phnum;
off = ((Elf64_Ehdr*)elf->e_ehdr)->e_phoff;
entsz = ((Elf64_Ehdr*)elf->e_ehdr)->e_phentsize;
/*
* Check for overflow on 32-bit systems
*/
if (overflow(off, ((Elf64_Ehdr*)elf->e_ehdr)->e_phoff, Elf64_Off)) {
seterr(ERROR_OUTSIDE);
return 0;
}
}
#endif /* __LIBELF64 */
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
if (off) {
Elf_Scn *scn;
size_t size;
unsigned i;
char *p;
if (num == PN_XNUM) {
/*
* Overflow in ehdr->e_phnum.
* Get real value from first SHDR.
*/
if (!(scn = elf->e_scn_1)) {
seterr(ERROR_NOSUCHSCN);
return 0;
}
if (elf->e_class == ELFCLASS32) {
num = scn->s_shdr32.sh_info;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
num = scn->s_shdr64.sh_info;
}
#endif /* __LIBELF64 */
/* we already had this
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
*/
}
size = _fsize(elf->e_class, elf->e_version, ELF_T_PHDR);
elf_assert(size);
#if ENABLE_EXTENDED_FORMAT
if (entsz < size) {
#else /* ENABLE_EXTENDED_FORMAT */
if (entsz != size) {
#endif /* ENABLE_EXTENDED_FORMAT */
seterr(ERROR_EHDR_PHENTSIZE);
return 0;
}
size = _msize(elf->e_class, _elf_version, ELF_T_PHDR);
elf_assert(size);
if (!(p = malloc(num * size))) {
seterr(memerr(ELF_T_PHDR));
return 0;
}
for (i = 0; i < num; i++) {
if (!_elf_item(p + i * size, elf, ELF_T_PHDR, off + i * entsz)) {
free(p);
return 0;
}
}
elf->e_phdr = p;
elf->e_phnum = num;
}
return 1;
}
static int
_elf_cook_shdr(Elf *elf) {
size_t num, off, entsz;
if (elf->e_class == ELFCLASS32) {
num = ((Elf32_Ehdr*)elf->e_ehdr)->e_shnum;
off = ((Elf32_Ehdr*)elf->e_ehdr)->e_shoff;
entsz = ((Elf32_Ehdr*)elf->e_ehdr)->e_shentsize;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
num = ((Elf64_Ehdr*)elf->e_ehdr)->e_shnum;
off = ((Elf64_Ehdr*)elf->e_ehdr)->e_shoff;
entsz = ((Elf64_Ehdr*)elf->e_ehdr)->e_shentsize;
/*
* Check for overflow on 32-bit systems
*/
if (overflow(off, ((Elf64_Ehdr*)elf->e_ehdr)->e_shoff, Elf64_Off)) {
seterr(ERROR_OUTSIDE);
return 0;
}
}
#endif /* __LIBELF64 */
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
if (off) {
struct tmp {
Elf_Scn scn;
Scn_Data data;
} *head;
Elf_Data src, dst;
Elf_Scn *scn;
Scn_Data *sd;
unsigned i;
if (off < 0 || off > elf->e_size) {
seterr(ERROR_OUTSIDE);
return 0;
}
src.d_type = ELF_T_SHDR;
src.d_version = elf->e_version;
src.d_size = _fsize(elf->e_class, src.d_version, ELF_T_SHDR);
elf_assert(src.d_size);
#if ENABLE_EXTENDED_FORMAT
if (entsz < src.d_size) {
#else /* ENABLE_EXTENDED_FORMAT */
if (entsz != src.d_size) {
#endif /* ENABLE_EXTENDED_FORMAT */
seterr(ERROR_EHDR_SHENTSIZE);
return 0;
}
dst.d_version = EV_CURRENT;
if (num == 0) {
union {
Elf32_Shdr sh32;
#if __LIBELF64
Elf64_Shdr sh64;
#endif /* __LIBELF64 */
} u;
/*
* Overflow in ehdr->e_shnum.
* Get real value from first SHDR.
*/
if (elf->e_size - off < entsz) {
seterr(ERROR_TRUNC_SHDR);
return 0;
}
if (elf->e_rawdata) {
src.d_buf = elf->e_rawdata + off;
}
else {
src.d_buf = elf->e_data + off;
}
dst.d_buf = &u;
dst.d_size = sizeof(u);
if (!_elf_xlatetom(elf, &dst, &src)) {
return 0;
}
elf_assert(dst.d_size == _msize(elf->e_class, EV_CURRENT, ELF_T_SHDR));
elf_assert(dst.d_type == ELF_T_SHDR);
if (elf->e_class == ELFCLASS32) {
num = u.sh32.sh_size;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
num = u.sh64.sh_size;
/*
* Check for overflow on 32-bit systems
*/
if (overflow(num, u.sh64.sh_size, Elf64_Xword)) {
seterr(ERROR_OUTSIDE);
return 0;
}
}
#endif /* __LIBELF64 */
}
if ((elf->e_size - off) / entsz < num) {
seterr(ERROR_TRUNC_SHDR);
return 0;
}
if (!(head = (struct tmp*)malloc(num * sizeof(struct tmp)))) {
seterr(ERROR_MEM_SCN);
return 0;
}
for (scn = NULL, i = num; i-- > 0; ) {
head[i].scn = _elf_scn_init;
head[i].data = _elf_data_init;
head[i].scn.s_link = scn;
if (!scn) {
elf->e_scn_n = &head[i].scn;
}
scn = &head[i].scn;
sd = &head[i].data;
if (elf->e_rawdata) {
src.d_buf = elf->e_rawdata + off + i * entsz;
}
else {
src.d_buf = elf->e_data + off + i * entsz;
}
dst.d_buf = &scn->s_uhdr;
dst.d_size = sizeof(scn->s_uhdr);
if (!_elf_xlatetom(elf, &dst, &src)) {
elf->e_scn_n = NULL;
free(head);
return 0;
}
elf_assert(dst.d_size == _msize(elf->e_class, EV_CURRENT, ELF_T_SHDR));
elf_assert(dst.d_type == ELF_T_SHDR);
scn->s_elf = elf;
scn->s_index = i;
scn->s_data_1 = sd;
scn->s_data_n = sd;
sd->sd_scn = scn;
if (elf->e_class == ELFCLASS32) {
Elf32_Shdr *shdr = &scn->s_shdr32;
scn->s_type = shdr->sh_type;
scn->s_size = shdr->sh_size;
scn->s_offset = shdr->sh_offset;
sd->sd_data.d_align = shdr->sh_addralign;
sd->sd_data.d_type = _elf_scn_type(scn->s_type);
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
Elf64_Shdr *shdr = &scn->s_shdr64;
scn->s_type = shdr->sh_type;
scn->s_size = shdr->sh_size;
scn->s_offset = shdr->sh_offset;
sd->sd_data.d_align = shdr->sh_addralign;
/*
* Check for overflow on 32-bit systems
*/
if (overflow(scn->s_size, shdr->sh_size, Elf64_Xword)
|| overflow(scn->s_offset, shdr->sh_offset, Elf64_Off)
|| overflow(sd->sd_data.d_align, shdr->sh_addralign, Elf64_Xword)) {
seterr(ERROR_OUTSIDE);
return 0;
}
sd->sd_data.d_type = _elf_scn_type(scn->s_type);
/*
* QUIRKS MODE:
*
* Some 64-bit architectures use 64-bit entries in the
* .hash section. This violates the ELF standard, and
* should be fixed. It's mostly harmless as long as the
* binary and the machine running your program have the
* same byte order, but you're in trouble if they don't,
* and if the entry size is wrong.
*
* As a workaround, I let libelf guess the right size
* for the binary. This relies pretty much on the fact
* that the binary provides correct data in the section
* headers. If it doesn't, it's probably broken anyway.
* Therefore, libelf uses a standard conforming value
* when it's not absolutely sure.
*/
if (scn->s_type == SHT_HASH) {
int override = 0;
/*
* sh_entsize must reflect the entry size
*/
if (shdr->sh_entsize == ELF64_FSZ_ADDR) {
override++;
}
/*
* sh_size must be a multiple of sh_entsize
*/
if (shdr->sh_size % ELF64_FSZ_ADDR == 0) {
override++;
}
/*
* There must be room for at least 2 entries
*/
if (shdr->sh_size >= 2 * ELF64_FSZ_ADDR) {
override++;
}
/*
* sh_addralign must be correctly set
*/
if (shdr->sh_addralign == ELF64_FSZ_ADDR) {
override++;
}
/*
* The section must be properly aligned
*/
if (shdr->sh_offset % ELF64_FSZ_ADDR == 0) {
override++;
}
/* XXX: also look at the data? */
/*
* Make a conservative decision...
*/
if (override >= 5) {
sd->sd_data.d_type = ELF_T_ADDR;
}
}
/*
* END QUIRKS MODE.
*/
}
#endif /* __LIBELF64 */
/* we already had this
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
*/
sd->sd_data.d_size = scn->s_size;
sd->sd_data.d_version = _elf_version;
}
elf_assert(scn == &head[0].scn);
elf->e_scn_1 = &head[0].scn;
head[0].scn.s_freeme = 1;
}
return 1;
}
static int
_elf_cook_file(Elf *elf) {
elf->e_ehdr = _elf_item(NULL, elf, ELF_T_EHDR, 0);
if (!elf->e_ehdr) {
return 0;
}
/*
* Note: _elf_cook_phdr may require the first section header!
*/
if (!_elf_cook_shdr(elf)) {
return 0;
}
if (!_elf_cook_phdr(elf)) {
return 0;
}
return 1;
}
int
_elf_cook(Elf *elf) {
elf_assert(_elf_scn_init.s_magic == SCN_MAGIC);
elf_assert(_elf_data_init.sd_magic == DATA_MAGIC);
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
elf_assert(elf->e_kind == ELF_K_ELF);
elf_assert(!elf->e_ehdr);
if (!valid_version(elf->e_version)) {
seterr(ERROR_UNKNOWN_VERSION);
}
else if (!valid_encoding(elf->e_encoding)) {
seterr(ERROR_UNKNOWN_ENCODING);
}
else if (valid_class(elf->e_class)) {
return _elf_cook_file(elf);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return 0;
}

36
external/libelf/src/data.c vendored Normal file
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@@ -0,0 +1,36 @@
/*
* data.c - libelf internal variables.
* Copyright (C) 1995 - 1998, 2007 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: data.c,v 1.8 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
unsigned _elf_version = EV_NONE;
int _elf_errno = 0;
int _elf_fill = 0;
#if ENABLE_SANITY_CHECKS
#define SANITY_CHECKS -1
#else
#define SANITY_CHECKS 0
#endif
int _elf_sanity_checks = SANITY_CHECKS;

118
external/libelf/src/end.c vendored Normal file
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/*
* end.c - implementation of the elf_end(3) function.
* Copyright (C) 1995 - 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: end.c,v 1.12 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#if HAVE_MMAP
#include <sys/mman.h>
#endif /* HAVE_MMAP */
static void
_elf_free(void *ptr) {
if (ptr) {
free(ptr);
}
}
static void
_elf_free_scns(Elf *elf, Elf_Scn *scn) {
Scn_Data *sd, *tmp;
Elf_Scn *freescn;
for (freescn = NULL; scn; scn = scn->s_link) {
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf == elf);
for (sd = scn->s_data_1; sd; sd = tmp) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
tmp = sd->sd_link;
if (sd->sd_free_data) {
_elf_free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if ((sd = scn->s_rawdata)) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
if (sd->sd_free_data) {
_elf_free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if (scn->s_freeme) {
_elf_free(freescn);
freescn = scn;
}
}
_elf_free(freescn);
}
int
elf_end(Elf *elf) {
Elf **siblings;
if (!elf) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (--elf->e_count) {
return elf->e_count;
}
if (elf->e_parent) {
elf_assert(elf->e_parent->e_magic == ELF_MAGIC);
elf_assert(elf->e_parent->e_kind == ELF_K_AR);
siblings = &elf->e_parent->e_members;
while (*siblings) {
if (*siblings == elf) {
*siblings = elf->e_link;
break;
}
siblings = &(*siblings)->e_link;
}
elf_end(elf->e_parent);
_elf_free(elf->e_arhdr);
}
#if HAVE_MMAP
else if (elf->e_unmap_data) {
munmap(elf->e_data, elf->e_size);
}
#endif /* HAVE_MMAP */
else if (!elf->e_memory) {
_elf_free(elf->e_data);
}
_elf_free_scns(elf, elf->e_scn_1);
if (elf->e_rawdata != elf->e_data) {
_elf_free(elf->e_rawdata);
}
if (elf->e_free_syms) {
_elf_free(elf->e_symtab);
}
_elf_free(elf->e_ehdr);
_elf_free(elf->e_phdr);
free(elf);
return 0;
}

77
external/libelf/src/errmsg.c vendored Normal file
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@@ -0,0 +1,77 @@
/*
* errmsg.c - implementation of the elf_errmsg(3) function.
* Copyright (C) 1995 - 1999, 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: errmsg.c,v 1.11 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#if HAVE_DGETTEXT
# undef HAVE_CATGETS
# include <libintl.h>
#else /* HAVE_DGETTEXT */
# define dgettext(dom, str) str
#endif /* HAVE_DGETTEXT */
#if HAVE_CATGETS
# include <nl_types.h>
static nl_catd _libelf_cat = (nl_catd)0;
#endif /* HAVE_CATGETS */
#if HAVE_DGETTEXT || HAVE_CATGETS
static const char domain[] = "libelf";
#endif /* HAVE_DGETTEXT || HAVE_CATGETS */
#if PIC
static const char *_messages[] = {
#else /* PIC */
static const char *const _messages[] = {
#endif /* PIC */
#define __err__(a,b) b,
#include <errors.h> /* include string tables from errors.h */
#undef __err__
};
const char*
elf_errmsg(int err) {
if (err == 0) {
err = _elf_errno;
if (err == 0) {
return NULL;
}
}
else if (err == -1) {
err = _elf_errno;
}
if (err < 0 || err >= ERROR_NUM || _messages[err] == NULL) {
err = ERROR_UNKNOWN;
}
#if HAVE_CATGETS
if (_libelf_cat == (nl_catd)0) {
_libelf_cat = catopen(domain, 0);
}
if (_libelf_cat != (nl_catd)-1) {
return catgets(_libelf_cat, 1, err + 1, _messages[err]);
}
#endif /* HAVE_CATGETS */
return dgettext(domain, _messages[err]);
}

32
external/libelf/src/errno.c vendored Normal file
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@@ -0,0 +1,32 @@
/*
errno.c - implementation of the elf_errno(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: errno.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
int
elf_errno(void) {
int tmp = _elf_errno;
_elf_errno = 0;
return tmp;
}

100
external/libelf/src/errors.h vendored Normal file
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/*
* errors.h - exhaustive list of all error codes and messages for libelf.
* Copyright (C) 1995 - 2003, 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: errors.h,v 1.18 2008/05/23 08:15:34 michael Exp $ */
/* dummy for xgettext */
#define _(str) str
__err__(ERROR_OK, _("no error"))
__err__(ERROR_UNKNOWN, _("unknown error"))
__err__(ERROR_INTERNAL, _("Internal error: unknown reason"))
__err__(ERROR_UNIMPLEMENTED, _("Internal error: not implemented"))
__err__(ERROR_WRONLY, _("Request error: cntl(ELF_C_FDREAD) on write-only file"))
__err__(ERROR_INVALID_CMD, _("Request error: invalid ELF_C_* argument"))
__err__(ERROR_FDDISABLED, _("Request error: file descriptor disabled"))
__err__(ERROR_NOTARCHIVE, _("Request error: not an archive"))
__err__(ERROR_BADOFF, _("Request error: offset out of range"))
__err__(ERROR_UNKNOWN_VERSION, _("Request error: unknown ELF version"))
__err__(ERROR_CMDMISMATCH, _("Request error: ELF_C_* argument does not match"))
__err__(ERROR_MEMBERWRITE, _("Request error: archive member begin() for writing"))
__err__(ERROR_FDMISMATCH, _("Request error: archive/member file descriptor mismatch"))
__err__(ERROR_NOTELF, _("Request error: not an ELF file"))
__err__(ERROR_CLASSMISMATCH, _("Request error: class file/memory mismatch"))
__err__(ERROR_UNKNOWN_TYPE, _("Request error: invalid ELF_T_* argument"))
__err__(ERROR_UNKNOWN_ENCODING, _("Request error: unknown data encoding"))
__err__(ERROR_DST2SMALL, _("Request error: destination buffer too small"))
__err__(ERROR_NULLBUF, _("Request error: d_buf is NULL"))
__err__(ERROR_UNKNOWN_CLASS, _("Request error: unknown ELF class"))
__err__(ERROR_ELFSCNMISMATCH, _("Request error: section does not belong to file"))
__err__(ERROR_NOSUCHSCN, _("Request error: no section at index"))
__err__(ERROR_NULLSCN, _("Request error: can't manipulate null section"))
__err__(ERROR_SCNDATAMISMATCH, _("Request error: data does not belong to section"))
__err__(ERROR_NOSTRTAB, _("Request error: no string table"))
__err__(ERROR_BADSTROFF, _("Request error: string table offset out of range"))
__err__(ERROR_RDONLY, _("Request error: update(ELF_C_WRITE) on read-only file"))
__err__(ERROR_IO_SEEK, _("I/O error: seek"))
__err__(ERROR_IO_2BIG, _("I/O error: file too big for memory"))
__err__(ERROR_IO_READ, _("I/O error: raw read"))
__err__(ERROR_IO_GETSIZE, _("I/O error: get file size"))
__err__(ERROR_IO_WRITE, _("I/O error: output write"))
__err__(ERROR_IO_TRUNC, _("I/O error: can't truncate output file"))
__err__(ERROR_VERSION_UNSET, _("Sequence error: must set ELF version first"))
__err__(ERROR_NOEHDR, _("Sequence error: must create ELF header first"))
__err__(ERROR_OUTSIDE, _("Format error: reference outside file"))
__err__(ERROR_TRUNC_ARHDR, _("Format error: archive header truncated"))
__err__(ERROR_ARFMAG, _("Format error: archive fmag"))
__err__(ERROR_ARHDR, _("Format error: archive header"))
__err__(ERROR_TRUNC_MEMBER, _("Format error: archive member truncated"))
__err__(ERROR_SIZE_ARSYMTAB, _("Format error: archive symbol table size"))
__err__(ERROR_ARSTRTAB, _("Format error: archive string table"))
__err__(ERROR_ARSPECIAL, _("Format error: archive special name unknown"))
__err__(ERROR_TRUNC_EHDR, _("Format error: ELF header truncated"))
__err__(ERROR_TRUNC_PHDR, _("Format error: program header table truncated"))
__err__(ERROR_TRUNC_SHDR, _("Format error: section header table truncated"))
__err__(ERROR_TRUNC_SCN, _("Format error: data region truncated"))
__err__(ERROR_ALIGN_PHDR, _("Format error: program header table alignment"))
__err__(ERROR_ALIGN_SHDR, _("Format error: section header table alignment"))
__err__(ERROR_VERDEF_FORMAT, _("Format error: bad parameter in Verdef record"))
__err__(ERROR_VERDEF_VERSION, _("Format error: unknown Verdef version"))
__err__(ERROR_VERNEED_FORMAT, _("Format error: bad parameter in Verneed record"))
__err__(ERROR_VERNEED_VERSION, _("Format error: unknown Verneed version"))
__err__(ERROR_EHDR_SHNUM, _("Format error: bad e_shnum value"))
__err__(ERROR_EHDR_SHENTSIZE, _("Format error: bad e_shentsize value"))
__err__(ERROR_EHDR_PHENTSIZE, _("Format error: bad e_phentsize value"))
__err__(ERROR_UNTERM, _("Format error: unterminated string in string table"))
__err__(ERROR_SCN2SMALL, _("Layout error: section size too small for data"))
__err__(ERROR_SCN_OVERLAP, _("Layout error: overlapping sections"))
__err__(ERROR_MEM_ELF, _("Memory error: elf descriptor"))
__err__(ERROR_MEM_ARSYMTAB, _("Memory error: archive symbol table"))
__err__(ERROR_MEM_ARHDR, _("Memory error: archive member header"))
__err__(ERROR_MEM_EHDR, _("Memory error: ELF header"))
__err__(ERROR_MEM_PHDR, _("Memory error: program header table"))
__err__(ERROR_MEM_SHDR, _("Memory error: section header table"))
__err__(ERROR_MEM_SCN, _("Memory error: section descriptor"))
__err__(ERROR_MEM_SCNDATA, _("Memory error: section data"))
__err__(ERROR_MEM_OUTBUF, _("Memory error: output file space"))
__err__(ERROR_MEM_TEMPORARY, _("Memory error: temporary buffer"))
__err__(ERROR_BADVALUE, _("GElf error: value out of range"))
__err__(ERROR_BADINDEX, _("GElf error: index out of range"))
__err__(ERROR_BADTYPE, _("GElf error: type mismatch"))
__err__(ERROR_MEM_SYM, _("GElf error: not enough memory for GElf_Sym"))
__err__(ERROR_MEM_DYN, _("GElf error: not enough memory for GElf_Dyn"))
__err__(ERROR_MEM_RELA, _("GElf error: not enough memory for GElf_Rela"))
__err__(ERROR_MEM_REL, _("GElf error: not enough memory for GElf_Rel"))

334
external/libelf/src/ext_types.h vendored Normal file
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@@ -0,0 +1,334 @@
/*
ext_types.h - external representation of ELF data types.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: ext_types.h,v 1.9 2008/05/23 08:15:34 michael Exp $ */
#ifndef _EXT_TYPES_H
#define _EXT_TYPES_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* Scalar data types
*/
typedef unsigned char __ext_Elf32_Addr [ELF32_FSZ_ADDR];
typedef unsigned char __ext_Elf32_Half [ELF32_FSZ_HALF];
typedef unsigned char __ext_Elf32_Off [ELF32_FSZ_OFF];
typedef unsigned char __ext_Elf32_Sword [ELF32_FSZ_SWORD];
typedef unsigned char __ext_Elf32_Word [ELF32_FSZ_WORD];
#if __LIBELF64
typedef unsigned char __ext_Elf32_Lword [8];
typedef unsigned char __ext_Elf64_Addr [ELF64_FSZ_ADDR];
typedef unsigned char __ext_Elf64_Half [ELF64_FSZ_HALF];
typedef unsigned char __ext_Elf64_Off [ELF64_FSZ_OFF];
typedef unsigned char __ext_Elf64_Sword [ELF64_FSZ_SWORD];
typedef unsigned char __ext_Elf64_Word [ELF64_FSZ_WORD];
typedef unsigned char __ext_Elf64_Sxword[ELF64_FSZ_SXWORD];
typedef unsigned char __ext_Elf64_Xword [ELF64_FSZ_XWORD];
typedef unsigned char __ext_Elf64_Lword [8];
#endif /* __LIBELF64 */
/*
* ELF header
*/
typedef struct {
unsigned char e_ident[EI_NIDENT];
__ext_Elf32_Half e_type;
__ext_Elf32_Half e_machine;
__ext_Elf32_Word e_version;
__ext_Elf32_Addr e_entry;
__ext_Elf32_Off e_phoff;
__ext_Elf32_Off e_shoff;
__ext_Elf32_Word e_flags;
__ext_Elf32_Half e_ehsize;
__ext_Elf32_Half e_phentsize;
__ext_Elf32_Half e_phnum;
__ext_Elf32_Half e_shentsize;
__ext_Elf32_Half e_shnum;
__ext_Elf32_Half e_shstrndx;
} __ext_Elf32_Ehdr;
#if __LIBELF64
typedef struct {
unsigned char e_ident[EI_NIDENT];
__ext_Elf64_Half e_type;
__ext_Elf64_Half e_machine;
__ext_Elf64_Word e_version;
__ext_Elf64_Addr e_entry;
__ext_Elf64_Off e_phoff;
__ext_Elf64_Off e_shoff;
__ext_Elf64_Word e_flags;
__ext_Elf64_Half e_ehsize;
__ext_Elf64_Half e_phentsize;
__ext_Elf64_Half e_phnum;
__ext_Elf64_Half e_shentsize;
__ext_Elf64_Half e_shnum;
__ext_Elf64_Half e_shstrndx;
} __ext_Elf64_Ehdr;
#endif /* __LIBELF64 */
/*
* Section header
*/
typedef struct {
__ext_Elf32_Word sh_name;
__ext_Elf32_Word sh_type;
__ext_Elf32_Word sh_flags;
__ext_Elf32_Addr sh_addr;
__ext_Elf32_Off sh_offset;
__ext_Elf32_Word sh_size;
__ext_Elf32_Word sh_link;
__ext_Elf32_Word sh_info;
__ext_Elf32_Word sh_addralign;
__ext_Elf32_Word sh_entsize;
} __ext_Elf32_Shdr;
#if __LIBELF64
typedef struct {
__ext_Elf64_Word sh_name;
__ext_Elf64_Word sh_type;
__ext_Elf64_Xword sh_flags;
__ext_Elf64_Addr sh_addr;
__ext_Elf64_Off sh_offset;
__ext_Elf64_Xword sh_size;
__ext_Elf64_Word sh_link;
__ext_Elf64_Word sh_info;
__ext_Elf64_Xword sh_addralign;
__ext_Elf64_Xword sh_entsize;
} __ext_Elf64_Shdr;
#endif /* __LIBELF64 */
/*
* Symbol table
*/
typedef struct {
__ext_Elf32_Word st_name;
__ext_Elf32_Addr st_value;
__ext_Elf32_Word st_size;
unsigned char st_info;
unsigned char st_other;
__ext_Elf32_Half st_shndx;
} __ext_Elf32_Sym;
#if __LIBELF64
typedef struct {
__ext_Elf64_Word st_name;
unsigned char st_info;
unsigned char st_other;
__ext_Elf64_Half st_shndx;
__ext_Elf64_Addr st_value;
__ext_Elf64_Xword st_size;
} __ext_Elf64_Sym;
#endif /* __LIBELF64 */
/*
* Relocation
*/
typedef struct {
__ext_Elf32_Addr r_offset;
__ext_Elf32_Word r_info;
} __ext_Elf32_Rel;
typedef struct {
__ext_Elf32_Addr r_offset;
__ext_Elf32_Word r_info;
__ext_Elf32_Sword r_addend;
} __ext_Elf32_Rela;
#if __LIBELF64
typedef struct {
__ext_Elf64_Addr r_offset;
#if __LIBELF64_IRIX
__ext_Elf64_Word r_sym;
unsigned char r_ssym;
unsigned char r_type3;
unsigned char r_type2;
unsigned char r_type;
#else /* __LIBELF64_IRIX */
__ext_Elf64_Xword r_info;
#endif /* __LIBELF64_IRIX */
} __ext_Elf64_Rel;
typedef struct {
__ext_Elf64_Addr r_offset;
#if __LIBELF64_IRIX
__ext_Elf64_Word r_sym;
unsigned char r_ssym;
unsigned char r_type3;
unsigned char r_type2;
unsigned char r_type;
#else /* __LIBELF64_IRIX */
__ext_Elf64_Xword r_info;
#endif /* __LIBELF64_IRIX */
__ext_Elf64_Sxword r_addend;
} __ext_Elf64_Rela;
#endif /* __LIBELF64 */
/*
* Program header
*/
typedef struct {
__ext_Elf32_Word p_type;
__ext_Elf32_Off p_offset;
__ext_Elf32_Addr p_vaddr;
__ext_Elf32_Addr p_paddr;
__ext_Elf32_Word p_filesz;
__ext_Elf32_Word p_memsz;
__ext_Elf32_Word p_flags;
__ext_Elf32_Word p_align;
} __ext_Elf32_Phdr;
#if __LIBELF64
typedef struct {
__ext_Elf64_Word p_type;
__ext_Elf64_Word p_flags;
__ext_Elf64_Off p_offset;
__ext_Elf64_Addr p_vaddr;
__ext_Elf64_Addr p_paddr;
__ext_Elf64_Xword p_filesz;
__ext_Elf64_Xword p_memsz;
__ext_Elf64_Xword p_align;
} __ext_Elf64_Phdr;
#endif /* __LIBELF64 */
/*
* Dynamic structure
*/
typedef struct {
__ext_Elf32_Sword d_tag;
union {
__ext_Elf32_Word d_val;
__ext_Elf32_Addr d_ptr;
} d_un;
} __ext_Elf32_Dyn;
#if __LIBELF64
typedef struct {
__ext_Elf64_Sxword d_tag;
union {
__ext_Elf64_Xword d_val;
__ext_Elf64_Addr d_ptr;
} d_un;
} __ext_Elf64_Dyn;
#endif /* __LIBELF64 */
/*
* Version definitions
*/
typedef struct {
__ext_Elf32_Half vd_version;
__ext_Elf32_Half vd_flags;
__ext_Elf32_Half vd_ndx;
__ext_Elf32_Half vd_cnt;
__ext_Elf32_Word vd_hash;
__ext_Elf32_Word vd_aux;
__ext_Elf32_Word vd_next;
} __ext_Elf32_Verdef;
typedef struct {
__ext_Elf32_Word vda_name;
__ext_Elf32_Word vda_next;
} __ext_Elf32_Verdaux;
typedef struct {
__ext_Elf32_Half vn_version;
__ext_Elf32_Half vn_cnt;
__ext_Elf32_Word vn_file;
__ext_Elf32_Word vn_aux;
__ext_Elf32_Word vn_next;
} __ext_Elf32_Verneed;
typedef struct {
__ext_Elf32_Word vna_hash;
__ext_Elf32_Half vna_flags;
__ext_Elf32_Half vna_other;
__ext_Elf32_Word vna_name;
__ext_Elf32_Word vna_next;
} __ext_Elf32_Vernaux;
#if __LIBELF64
typedef struct {
__ext_Elf64_Half vd_version;
__ext_Elf64_Half vd_flags;
__ext_Elf64_Half vd_ndx;
__ext_Elf64_Half vd_cnt;
__ext_Elf64_Word vd_hash;
__ext_Elf64_Word vd_aux;
__ext_Elf64_Word vd_next;
} __ext_Elf64_Verdef;
typedef struct {
__ext_Elf64_Word vda_name;
__ext_Elf64_Word vda_next;
} __ext_Elf64_Verdaux;
typedef struct {
__ext_Elf64_Half vn_version;
__ext_Elf64_Half vn_cnt;
__ext_Elf64_Word vn_file;
__ext_Elf64_Word vn_aux;
__ext_Elf64_Word vn_next;
} __ext_Elf64_Verneed;
typedef struct {
__ext_Elf64_Word vna_hash;
__ext_Elf64_Half vna_flags;
__ext_Elf64_Half vna_other;
__ext_Elf64_Word vna_name;
__ext_Elf64_Word vna_next;
} __ext_Elf64_Vernaux;
#endif /* __LIBELF64 */
/*
* Move section
*/
#if __LIBELF64
typedef struct {
__ext_Elf32_Lword m_value;
__ext_Elf32_Word m_info;
__ext_Elf32_Word m_poffset;
__ext_Elf32_Half m_repeat;
__ext_Elf32_Half m_stride;
} __ext_Elf32_Move;
typedef struct {
__ext_Elf64_Lword m_value;
__ext_Elf64_Xword m_info;
__ext_Elf64_Xword m_poffset;
__ext_Elf64_Half m_repeat;
__ext_Elf64_Half m_stride;
} __ext_Elf64_Move;
#endif /* __LIBELF64 */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _EXT_TYPES_H */

29
external/libelf/src/fill.c vendored Normal file
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@@ -0,0 +1,29 @@
/*
fill.c - implementation of the elf_fill(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: fill.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
void
elf_fill(int fill) {
_elf_fill = fill;
}

92
external/libelf/src/flag.c vendored Normal file
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@@ -0,0 +1,92 @@
/*
flag.c - implementation of the elf_flag*(3) functions.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: flag.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
static unsigned
_elf_flag(unsigned *f, Elf_Cmd cmd, unsigned flags) {
if (cmd == ELF_C_SET) {
return *f |= flags;
}
if (cmd == ELF_C_CLR) {
return *f &= ~flags;
}
seterr(ERROR_INVALID_CMD);
return 0;
}
unsigned
elf_flagdata(Elf_Data *data, Elf_Cmd cmd, unsigned flags) {
Scn_Data *sd = (Scn_Data*)data;
if (!sd) {
return 0;
}
elf_assert(sd->sd_magic == DATA_MAGIC);
return _elf_flag(&sd->sd_data_flags, cmd, flags);
}
unsigned
elf_flagehdr(Elf *elf, Elf_Cmd cmd, unsigned flags) {
if (!elf) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
return _elf_flag(&elf->e_ehdr_flags, cmd, flags);
}
unsigned
elf_flagelf(Elf *elf, Elf_Cmd cmd, unsigned flags) {
if (!elf) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
return _elf_flag(&elf->e_elf_flags, cmd, flags);
}
unsigned
elf_flagphdr(Elf *elf, Elf_Cmd cmd, unsigned flags) {
if (!elf) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
return _elf_flag(&elf->e_phdr_flags, cmd, flags);
}
unsigned
elf_flagscn(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) {
if (!scn) {
return 0;
}
elf_assert(scn->s_magic == SCN_MAGIC);
return _elf_flag(&scn->s_scn_flags, cmd, flags);
}
unsigned
elf_flagshdr(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) {
if (!scn) {
return 0;
}
elf_assert(scn->s_magic == SCN_MAGIC);
return _elf_flag(&scn->s_shdr_flags, cmd, flags);
}

155
external/libelf/src/gelf.h vendored Normal file
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/*
* gelf.h - public header file for libelf.
* Copyright (C) 2000 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: gelf.h,v 1.16 2008/05/23 08:15:34 michael Exp $ */
#ifndef _GELF_H
#define _GELF_H
#if __LIBELF_INTERNAL__
#include <libelf.h>
#else /* __LIBELF_INTERNAL__ */
#include <libelf/libelf.h>
#endif /* __LIBELF_INTERNAL__ */
#if __LIBELF_NEED_LINK_H
#include <link.h>
#elif __LIBELF_NEED_SYS_LINK_H
#include <sys/link.h>
#endif /* __LIBELF_NEED_LINK_H */
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef __P
# if (__STDC__ + 0) || defined(__cplusplus) || defined(_WIN32)
# define __P(args) args
# else /* __STDC__ || defined(__cplusplus) */
# define __P(args) ()
# endif /* __STDC__ || defined(__cplusplus) */
#endif /* __P */
#if !__LIBELF64
#error "GElf is not supported on this system."
#else /* __LIBELF64 */
typedef Elf64_Addr GElf_Addr;
typedef Elf64_Half GElf_Half;
typedef Elf64_Off GElf_Off;
typedef Elf64_Sword GElf_Sword;
typedef Elf64_Word GElf_Word;
typedef Elf64_Sxword GElf_Sxword;
typedef Elf64_Xword GElf_Xword;
typedef Elf64_Ehdr GElf_Ehdr;
typedef Elf64_Phdr GElf_Phdr;
typedef Elf64_Shdr GElf_Shdr;
typedef Elf64_Dyn GElf_Dyn;
typedef Elf64_Rel GElf_Rel;
typedef Elf64_Rela GElf_Rela;
typedef Elf64_Sym GElf_Sym;
/*
* Symbol versioning
*/
#if __LIBELF_SYMBOL_VERSIONS
typedef Elf64_Verdef GElf_Verdef;
typedef Elf64_Verneed GElf_Verneed;
typedef Elf64_Verdaux GElf_Verdaux;
typedef Elf64_Vernaux GElf_Vernaux;
#endif /* __LIBELF_SYMBOL_VERSIONS */
/*
* These types aren't implemented (yet)
*
typedef Elf64_Move GElf_Move;
typedef Elf64_Syminfo GElf_Syminfo;
*/
/*
* Generic macros
*/
#define GELF_ST_BIND ELF64_ST_BIND
#define GELF_ST_TYPE ELF64_ST_TYPE
#define GELF_ST_INFO ELF64_ST_INFO
#define GELF_R_TYPE ELF64_R_TYPE
#define GELF_R_SYM ELF64_R_SYM
#define GELF_R_INFO ELF64_R_INFO
/*
* Function declarations
*/
extern int gelf_getclass __P((Elf *__elf));
extern size_t gelf_fsize __P((Elf *__elf, Elf_Type __type, size_t __count, unsigned __ver));
extern Elf_Data *gelf_xlatetof __P((Elf *__elf, Elf_Data *__dst, const Elf_Data *__src, unsigned __encode));
extern Elf_Data *gelf_xlatetom __P((Elf *__elf, Elf_Data *__dst, const Elf_Data *__src, unsigned __encode));
extern GElf_Ehdr *gelf_getehdr __P((Elf *__elf, GElf_Ehdr *__dst));
extern int gelf_update_ehdr __P((Elf *__elf, GElf_Ehdr *__src));
extern unsigned long gelf_newehdr __P((Elf *__elf, int __elfclass));
extern GElf_Phdr *gelf_getphdr __P((Elf *__elf, int ndx, GElf_Phdr *__dst));
extern int gelf_update_phdr __P((Elf *__elf, int ndx, GElf_Phdr *__src));
extern unsigned long gelf_newphdr __P((Elf *__elf, size_t __phnum));
extern GElf_Shdr *gelf_getshdr __P((Elf_Scn *__scn, GElf_Shdr *__dst));
extern int gelf_update_shdr __P((Elf_Scn *__scn, GElf_Shdr *__src));
extern GElf_Dyn *gelf_getdyn __P((Elf_Data *__src, int __ndx, GElf_Dyn *__dst));
extern int gelf_update_dyn __P((Elf_Data *__dst, int __ndx, GElf_Dyn *__src));
extern GElf_Rel *gelf_getrel __P((Elf_Data *__src, int __ndx, GElf_Rel *__dst));
extern int gelf_update_rel __P((Elf_Data *__dst, int __ndx, GElf_Rel *__src));
extern GElf_Rela *gelf_getrela __P((Elf_Data *__src, int __ndx, GElf_Rela *__dst));
extern int gelf_update_rela __P((Elf_Data *__dst, int __ndx, GElf_Rela *__src));
extern GElf_Sym *gelf_getsym __P((Elf_Data *__src, int __ndx, GElf_Sym *__dst));
extern int gelf_update_sym __P((Elf_Data *__dst, int __ndx, GElf_Sym *__src));
extern long gelf_checksum __P((Elf *__elf));
/*
* These functions aren't implemented (yet)
*
extern GElf_Move *gelf_getmove __P((Elf_Data *__src, int __ndx, GElf_Move *__src));
extern int gelf_update_move __P((Elf_Data *__dst, int __ndx, GElf_Move *__src));
*
extern GElf_Syminfo* gelf_getsyminfo __P((Elf_Data *__src, int __ndx, GElf_Syminfo *__dst));
extern int gelf_update_syminfo __P((Elf_Data *__dst, int __ndx, GElf_Syminfo *__src));
*/
/*
* Extensions (not available in other versions of libelf)
*/
extern size_t gelf_msize __P((Elf *__elf, Elf_Type __type, size_t __count, unsigned __ver));
#endif /* __LIBELF64 */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _GELF_H */

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/*
* gelfehdr.c - gelf_* translation functions.
* Copyright (C) 2000 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: gelfehdr.c,v 1.9 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#define check_and_copy(type, d, s, name, eret) \
do { \
if (sizeof((d)->name) < sizeof((s)->name) \
&& (type)(s)->name != (s)->name) { \
seterr(ERROR_BADVALUE); \
return (eret); \
} \
(d)->name = (type)(s)->name; \
} while (0)
GElf_Ehdr*
gelf_getehdr(Elf *elf, GElf_Ehdr *dst) {
GElf_Ehdr buf;
char *tmp;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
tmp = _elf_getehdr(elf, elf->e_class);
if (!tmp) {
return NULL;
}
if (!dst) {
dst = &buf;
}
if (elf->e_class == ELFCLASS64) {
*dst = *(Elf64_Ehdr*)tmp;
}
else if (elf->e_class == ELFCLASS32) {
Elf32_Ehdr *src = (Elf32_Ehdr*)tmp;
memcpy(dst->e_ident, src->e_ident, EI_NIDENT);
check_and_copy(GElf_Half, dst, src, e_type, NULL);
check_and_copy(GElf_Half, dst, src, e_machine, NULL);
check_and_copy(GElf_Word, dst, src, e_version, NULL);
check_and_copy(GElf_Addr, dst, src, e_entry, NULL);
check_and_copy(GElf_Off, dst, src, e_phoff, NULL);
check_and_copy(GElf_Off, dst, src, e_shoff, NULL);
check_and_copy(GElf_Word, dst, src, e_flags, NULL);
check_and_copy(GElf_Half, dst, src, e_ehsize, NULL);
check_and_copy(GElf_Half, dst, src, e_phentsize, NULL);
check_and_copy(GElf_Half, dst, src, e_phnum, NULL);
check_and_copy(GElf_Half, dst, src, e_shentsize, NULL);
check_and_copy(GElf_Half, dst, src, e_shnum, NULL);
check_and_copy(GElf_Half, dst, src, e_shstrndx, NULL);
}
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return NULL;
}
if (dst == &buf) {
dst = (GElf_Ehdr*)malloc(sizeof(GElf_Ehdr));
if (!dst) {
seterr(ERROR_MEM_EHDR);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_ehdr(Elf *elf, GElf_Ehdr *src) {
char *tmp;
if (!elf || !src) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
tmp = _elf_getehdr(elf, elf->e_class);
if (!tmp) {
return 0;
}
if (elf->e_class == ELFCLASS64) {
*(Elf64_Ehdr*)tmp = *src;
}
else if (elf->e_class == ELFCLASS32) {
Elf32_Ehdr *dst = (Elf32_Ehdr*)tmp;
memcpy(dst->e_ident, src->e_ident, EI_NIDENT);
check_and_copy(Elf32_Half, dst, src, e_type, 0);
check_and_copy(Elf32_Half, dst, src, e_machine, 0);
check_and_copy(Elf32_Word, dst, src, e_version, 0);
check_and_copy(Elf32_Addr, dst, src, e_entry, 0);
check_and_copy(Elf32_Off, dst, src, e_phoff, 0);
check_and_copy(Elf32_Off, dst, src, e_shoff, 0);
check_and_copy(Elf32_Word, dst, src, e_flags, 0);
check_and_copy(Elf32_Half, dst, src, e_ehsize, 0);
check_and_copy(Elf32_Half, dst, src, e_phentsize, 0);
check_and_copy(Elf32_Half, dst, src, e_phnum, 0);
check_and_copy(Elf32_Half, dst, src, e_shentsize, 0);
check_and_copy(Elf32_Half, dst, src, e_shnum, 0);
check_and_copy(Elf32_Half, dst, src, e_shstrndx, 0);
}
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return 0;
}
return 1;
}
#endif /* __LIBELF64 */

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/*
* gelfphdr.c - gelf_* translation functions.
* Copyright (C) 2000 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: gelfphdr.c,v 1.9 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#define check_and_copy(type, d, s, name, eret) \
do { \
if (sizeof((d)->name) < sizeof((s)->name) \
&& (type)(s)->name != (s)->name) { \
seterr(ERROR_BADVALUE); \
return (eret); \
} \
(d)->name = (type)(s)->name; \
} while (0)
GElf_Phdr*
gelf_getphdr(Elf *elf, int ndx, GElf_Phdr *dst) {
GElf_Phdr buf;
char *tmp;
size_t n;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
tmp = _elf_getphdr(elf, elf->e_class);
if (!tmp) {
return NULL;
}
if (ndx < 0 || ndx >= elf->e_phnum) {
seterr(ERROR_BADINDEX);
return NULL;
}
n = _msize(elf->e_class, _elf_version, ELF_T_PHDR);
if (n == 0) {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (!dst) {
dst = &buf;
}
if (elf->e_class == ELFCLASS64) {
*dst = *(Elf64_Phdr*)(tmp + ndx * n);
}
else if (elf->e_class == ELFCLASS32) {
Elf32_Phdr *src = (Elf32_Phdr*)(tmp + ndx * n);
check_and_copy(GElf_Word, dst, src, p_type, NULL);
check_and_copy(GElf_Word, dst, src, p_flags, NULL);
check_and_copy(GElf_Off, dst, src, p_offset, NULL);
check_and_copy(GElf_Addr, dst, src, p_vaddr, NULL);
check_and_copy(GElf_Addr, dst, src, p_paddr, NULL);
check_and_copy(GElf_Xword, dst, src, p_filesz, NULL);
check_and_copy(GElf_Xword, dst, src, p_memsz, NULL);
check_and_copy(GElf_Xword, dst, src, p_align, NULL);
}
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return NULL;
}
if (dst == &buf) {
dst = (GElf_Phdr*)malloc(sizeof(GElf_Phdr));
if (!dst) {
seterr(ERROR_MEM_PHDR);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_phdr(Elf *elf, int ndx, GElf_Phdr *src) {
char *tmp;
size_t n;
if (!elf || !src) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
tmp = _elf_getphdr(elf, elf->e_class);
if (!tmp) {
return 0;
}
if (ndx < 0 || ndx >= elf->e_phnum) {
seterr(ERROR_BADINDEX);
return 0;
}
n = _msize(elf->e_class, _elf_version, ELF_T_PHDR);
if (n == 0) {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
if (elf->e_class == ELFCLASS64) {
*(Elf64_Phdr*)(tmp + ndx * n) = *src;
}
else if (elf->e_class == ELFCLASS32) {
Elf32_Phdr *dst = (Elf32_Phdr*)(tmp + ndx * n);
check_and_copy(Elf32_Word, dst, src, p_type, 0);
check_and_copy(Elf32_Off, dst, src, p_offset, 0);
check_and_copy(Elf32_Addr, dst, src, p_vaddr, 0);
check_and_copy(Elf32_Addr, dst, src, p_paddr, 0);
check_and_copy(Elf32_Word, dst, src, p_filesz, 0);
check_and_copy(Elf32_Word, dst, src, p_memsz, 0);
check_and_copy(Elf32_Word, dst, src, p_flags, 0);
check_and_copy(Elf32_Word, dst, src, p_align, 0);
}
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return 0;
}
return 1;
}
#endif /* __LIBELF64 */

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external/libelf/src/gelfshdr.c vendored Normal file
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/*
* gelfshdr.c - gelf_* translation functions.
* Copyright (C) 2000 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: gelfshdr.c,v 1.10 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#define check_and_copy(type, d, s, name, eret) \
do { \
if (sizeof((d)->name) < sizeof((s)->name) \
&& (type)(s)->name != (s)->name) { \
seterr(ERROR_BADVALUE); \
return (eret); \
} \
(d)->name = (type)(s)->name; \
} while (0)
GElf_Shdr*
gelf_getshdr(Elf_Scn *scn, GElf_Shdr *dst) {
GElf_Shdr buf;
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf);
elf_assert(scn->s_elf->e_magic == ELF_MAGIC);
if (!dst) {
dst = &buf;
}
if (scn->s_elf->e_class == ELFCLASS64) {
*dst = scn->s_shdr64;
}
else if (scn->s_elf->e_class == ELFCLASS32) {
Elf32_Shdr *src = &scn->s_shdr32;
check_and_copy(GElf_Word, dst, src, sh_name, NULL);
check_and_copy(GElf_Word, dst, src, sh_type, NULL);
check_and_copy(GElf_Xword, dst, src, sh_flags, NULL);
check_and_copy(GElf_Addr, dst, src, sh_addr, NULL);
check_and_copy(GElf_Off, dst, src, sh_offset, NULL);
check_and_copy(GElf_Xword, dst, src, sh_size, NULL);
check_and_copy(GElf_Word, dst, src, sh_link, NULL);
check_and_copy(GElf_Word, dst, src, sh_info, NULL);
check_and_copy(GElf_Xword, dst, src, sh_addralign, NULL);
check_and_copy(GElf_Xword, dst, src, sh_entsize, NULL);
}
else {
if (valid_class(scn->s_elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return NULL;
}
if (dst == &buf) {
dst = (GElf_Shdr*)malloc(sizeof(GElf_Shdr));
if (!dst) {
seterr(ERROR_MEM_SHDR);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *src) {
if (!scn || !src) {
return 0;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf);
elf_assert(scn->s_elf->e_magic == ELF_MAGIC);
if (scn->s_elf->e_class == ELFCLASS64) {
scn->s_shdr64 = *src;
}
else if (scn->s_elf->e_class == ELFCLASS32) {
Elf32_Shdr *dst = &scn->s_shdr32;
check_and_copy(Elf32_Word, dst, src, sh_name, 0);
check_and_copy(Elf32_Word, dst, src, sh_type, 0);
check_and_copy(Elf32_Word, dst, src, sh_flags, 0);
check_and_copy(Elf32_Addr, dst, src, sh_addr, 0);
check_and_copy(Elf32_Off, dst, src, sh_offset, 0);
check_and_copy(Elf32_Word, dst, src, sh_size, 0);
check_and_copy(Elf32_Word, dst, src, sh_link, 0);
check_and_copy(Elf32_Word, dst, src, sh_info, 0);
check_and_copy(Elf32_Word, dst, src, sh_addralign, 0);
check_and_copy(Elf32_Word, dst, src, sh_entsize, 0);
}
else {
if (valid_class(scn->s_elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return 0;
}
return 1;
}
#endif /* __LIBELF64 */

407
external/libelf/src/gelftrans.c vendored Normal file
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@@ -0,0 +1,407 @@
/*
gelftrans.c - gelf_* translation functions.
Copyright (C) 2000 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: gelftrans.c,v 1.10 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
#define check_and_copy(type, d, s, name, eret) \
do { \
if (sizeof((d)->name) < sizeof((s)->name) \
&& (type)(s)->name != (s)->name) { \
seterr(ERROR_BADVALUE); \
return (eret); \
} \
(d)->name = (type)(s)->name; \
} while (0)
/*
* These macros are missing on some Linux systems
*/
#if !defined(ELF32_R_SYM) || !defined(ELF32_R_TYPE) || !defined(ELF32_R_INFO)
# undef ELF32_R_SYM
# undef ELF32_R_TYPE
# undef ELF32_R_INFO
# define ELF32_R_SYM(i) ((i)>>8)
# define ELF32_R_TYPE(i) ((unsigned char)(i))
# define ELF32_R_INFO(s,t) (((s)<<8)+(unsigned char)(t))
#endif /* !defined(...) */
#if !defined(ELF64_R_SYM) || !defined(ELF64_R_TYPE) || !defined(ELF64_R_INFO)
# undef ELF64_R_SYM
# undef ELF64_R_TYPE
# undef ELF64_R_INFO
# define ELF64_R_SYM(i) ((i)>>32)
# define ELF64_R_TYPE(i) ((i)&0xffffffffL)
# define ELF64_R_INFO(s,t) (((Elf64_Xword)(s)<<32)+((t)&0xffffffffL))
#endif /* !defined(...) */
static char*
get_addr_and_class(const Elf_Data *data, int ndx, Elf_Type type, unsigned *cls) {
Scn_Data *sd = (Scn_Data*)data;
Elf_Scn *scn;
Elf *elf;
size_t n;
if (!sd) {
return NULL;
}
elf_assert(sd->sd_magic == DATA_MAGIC);
scn = sd->sd_scn;
elf_assert(scn);
elf_assert(scn->s_magic == SCN_MAGIC);
elf = scn->s_elf;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return NULL;
}
if (!valid_class(elf->e_class)) {
seterr(ERROR_UNKNOWN_CLASS);
return NULL;
}
if (data->d_type != type) {
seterr(ERROR_BADTYPE);
return NULL;
}
n = _msize(elf->e_class, data->d_version, type);
if (n == 0) {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (ndx < 0 || data->d_size < (ndx + 1) * n) {
seterr(ERROR_BADINDEX);
return NULL;
}
if (!data->d_buf) {
seterr(ERROR_NULLBUF);
return NULL;
}
if (cls) {
*cls = elf->e_class;
}
return (char*)data->d_buf + n * ndx;
}
GElf_Sym*
gelf_getsym(Elf_Data *src, int ndx, GElf_Sym *dst) {
GElf_Sym buf;
unsigned cls;
char *tmp;
if (!dst) {
dst = &buf;
}
tmp = get_addr_and_class(src, ndx, ELF_T_SYM, &cls);
if (!tmp) {
return NULL;
}
if (cls == ELFCLASS64) {
*dst = *(Elf64_Sym*)tmp;
}
else if (cls == ELFCLASS32) {
Elf32_Sym *src = (Elf32_Sym*)tmp;
check_and_copy(GElf_Word, dst, src, st_name, NULL);
check_and_copy(unsigned char, dst, src, st_info, NULL);
check_and_copy(unsigned char, dst, src, st_other, NULL);
check_and_copy(GElf_Half, dst, src, st_shndx, NULL);
check_and_copy(GElf_Addr, dst, src, st_value, NULL);
check_and_copy(GElf_Xword, dst, src, st_size, NULL);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (dst == &buf) {
dst = (GElf_Sym*)malloc(sizeof(GElf_Sym));
if (!dst) {
seterr(ERROR_MEM_SYM);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_sym(Elf_Data *dst, int ndx, GElf_Sym *src) {
unsigned cls;
char *tmp;
tmp = get_addr_and_class(dst, ndx, ELF_T_SYM, &cls);
if (!tmp) {
return 0;
}
if (cls == ELFCLASS64) {
*(Elf64_Sym*)tmp = *src;
}
else if (cls == ELFCLASS32) {
Elf32_Sym *dst = (Elf32_Sym*)tmp;
check_and_copy(Elf32_Word, dst, src, st_name, 0);
check_and_copy(Elf32_Addr, dst, src, st_value, 0);
check_and_copy(Elf32_Word, dst, src, st_size, 0);
check_and_copy(unsigned char, dst, src, st_info, 0);
check_and_copy(unsigned char, dst, src, st_other, 0);
check_and_copy(Elf32_Half, dst, src, st_shndx, 0);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
return 1;
}
GElf_Dyn*
gelf_getdyn(Elf_Data *src, int ndx, GElf_Dyn *dst) {
GElf_Dyn buf;
unsigned cls;
char *tmp;
if (!dst) {
dst = &buf;
}
tmp = get_addr_and_class(src, ndx, ELF_T_DYN, &cls);
if (!tmp) {
return NULL;
}
if (cls == ELFCLASS64) {
*dst = *(Elf64_Dyn*)tmp;
}
else if (cls == ELFCLASS32) {
Elf32_Dyn *src = (Elf32_Dyn*)tmp;
check_and_copy(GElf_Sxword, dst, src, d_tag, NULL);
check_and_copy(GElf_Xword, dst, src, d_un.d_val, NULL);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (dst == &buf) {
dst = (GElf_Dyn*)malloc(sizeof(GElf_Dyn));
if (!dst) {
seterr(ERROR_MEM_DYN);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_dyn(Elf_Data *dst, int ndx, GElf_Dyn *src) {
unsigned cls;
char *tmp;
tmp = get_addr_and_class(dst, ndx, ELF_T_DYN, &cls);
if (!tmp) {
return 0;
}
if (cls == ELFCLASS64) {
*(Elf64_Dyn*)tmp = *src;
}
else if (cls == ELFCLASS32) {
Elf32_Dyn *dst = (Elf32_Dyn*)tmp;
check_and_copy(Elf32_Sword, dst, src, d_tag, 0);
check_and_copy(Elf32_Word, dst, src, d_un.d_val, 0);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
return 1;
}
GElf_Rela*
gelf_getrela(Elf_Data *src, int ndx, GElf_Rela *dst) {
GElf_Rela buf;
unsigned cls;
char *tmp;
if (!dst) {
dst = &buf;
}
tmp = get_addr_and_class(src, ndx, ELF_T_RELA, &cls);
if (!tmp) {
return NULL;
}
if (cls == ELFCLASS64) {
*dst = *(Elf64_Rela*)tmp;
}
else if (cls == ELFCLASS32) {
Elf32_Rela *src = (Elf32_Rela*)tmp;
check_and_copy(GElf_Addr, dst, src, r_offset, NULL);
dst->r_info = ELF64_R_INFO((Elf64_Xword)ELF32_R_SYM(src->r_info),
(Elf64_Xword)ELF32_R_TYPE(src->r_info));
check_and_copy(GElf_Sxword, dst, src, r_addend, NULL);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (dst == &buf) {
dst = (GElf_Rela*)malloc(sizeof(GElf_Rela));
if (!dst) {
seterr(ERROR_MEM_RELA);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_rela(Elf_Data *dst, int ndx, GElf_Rela *src) {
unsigned cls;
char *tmp;
tmp = get_addr_and_class(dst, ndx, ELF_T_RELA, &cls);
if (!tmp) {
return 0;
}
if (cls == ELFCLASS64) {
*(Elf64_Rela*)tmp = *src;
}
else if (cls == ELFCLASS32) {
Elf32_Rela *dst = (Elf32_Rela*)tmp;
check_and_copy(Elf32_Addr, dst, src, r_offset, 0);
if (ELF64_R_SYM(src->r_info) > 0xffffffUL
|| ELF64_R_TYPE(src->r_info) > 0xffUL) {
seterr(ERROR_BADVALUE);
return 0;
}
dst->r_info = ELF32_R_INFO((Elf32_Word)ELF64_R_SYM(src->r_info),
(Elf32_Word)ELF64_R_TYPE(src->r_info));
check_and_copy(Elf32_Sword, dst, src, r_addend, 0);
}
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
return 1;
}
GElf_Rel*
gelf_getrel(Elf_Data *src, int ndx, GElf_Rel *dst) {
GElf_Rel buf;
unsigned cls;
char *tmp;
if (!dst) {
dst = &buf;
}
tmp = get_addr_and_class(src, ndx, ELF_T_REL, &cls);
if (!tmp) {
return NULL;
}
if (cls == ELFCLASS64) {
*dst = *(Elf64_Rel*)tmp;
}
else if (cls == ELFCLASS32) {
Elf32_Rel *src = (Elf32_Rel*)tmp;
check_and_copy(GElf_Addr, dst, src, r_offset, NULL);
dst->r_info = ELF64_R_INFO((Elf64_Xword)ELF32_R_SYM(src->r_info),
(Elf64_Xword)ELF32_R_TYPE(src->r_info));
}
else {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (dst == &buf) {
dst = (GElf_Rel*)malloc(sizeof(GElf_Rel));
if (!dst) {
seterr(ERROR_MEM_REL);
return NULL;
}
*dst = buf;
}
return dst;
}
int
gelf_update_rel(Elf_Data *dst, int ndx, GElf_Rel *src) {
unsigned cls;
char *tmp;
tmp = get_addr_and_class(dst, ndx, ELF_T_REL, &cls);
if (!tmp) {
return 0;
}
if (cls == ELFCLASS64) {
*(Elf64_Rel*)tmp = *src;
}
else if (cls == ELFCLASS32) {
Elf32_Rel *dst = (Elf32_Rel*)tmp;
check_and_copy(Elf32_Addr, dst, src, r_offset, 0);
if (ELF64_R_SYM(src->r_info) > 0xffffffUL
|| ELF64_R_TYPE(src->r_info) > 0xffUL) {
seterr(ERROR_BADVALUE);
return 0;
}
dst->r_info = ELF32_R_INFO((Elf32_Word)ELF64_R_SYM(src->r_info),
(Elf32_Word)ELF64_R_TYPE(src->r_info));
}
else {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
return 1;
}
#if 0
GElf_Syminfo*
gelf_getsyminfo(Elf_Data *src, int ndx, GElf_Syminfo *dst) {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
int
gelf_update_syminfo(Elf_Data *dst, int ndx, GElf_Syminfo *src) {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
GElf_Move*
gelf_getmove(Elf_Data *src, int ndx, GElf_Move *src) {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
int
gelf_update_move(Elf_Data *dst, int ndx, GElf_Move *src) {
seterr(ERROR_UNIMPLEMENTED);
return 0;
}
#endif
#endif /* __LIBELF64 */

37
external/libelf/src/getarhdr.c vendored Normal file
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@@ -0,0 +1,37 @@
/*
getarhdr.c - implementation of the elf_getarhdr(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getarhdr.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
Elf_Arhdr*
elf_getarhdr(Elf *elf) {
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_arhdr) {
return elf->e_arhdr;
}
seterr(ERROR_NOTARCHIVE);
return NULL;
}

40
external/libelf/src/getaroff.c vendored Normal file
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@@ -0,0 +1,40 @@
/*
* getaroff.c - implementation of the elf_getaroff(3) function.
* Copyright (C) 2009 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getaroff.c,v 1.1 2009/11/01 13:04:19 michael Exp $";
#endif /* lint */
off_t
elf_getaroff(Elf *elf) {
Elf *ref;
if (!elf) {
return (off_t)-1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!(ref = elf->e_parent)) {
return (off_t)-1;
}
elf_assert(ref->e_magic == ELF_MAGIC);
elf_assert(elf->e_base >= ref->e_base + SARMAG + sizeof(struct ar_hdr));
return (off_t)(elf->e_base - ref->e_base - sizeof(struct ar_hdr));
}

87
external/libelf/src/getarsym.c vendored Normal file
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@@ -0,0 +1,87 @@
/*
* getarsym.c - implementation of the elf_getarsym(3) function.
* Copyright (C) 1995 - 1998, 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <byteswap.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getarsym.c,v 1.9 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
Elf_Arsym*
elf_getarsym(Elf *elf, size_t *ptr) {
Elf_Arsym *syms;
size_t count;
size_t tmp;
size_t i;
char *s;
char *e;
if (!ptr) {
ptr = &tmp;
}
*ptr = 0;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_AR) {
seterr(ERROR_NOTARCHIVE);
return NULL;
}
if (elf->e_symtab && !elf->e_free_syms) {
if (elf->e_symlen < 4) {
seterr(ERROR_SIZE_ARSYMTAB);
return NULL;
}
count = __load_u32M(elf->e_symtab);
if (elf->e_symlen < 4 * (count + 1)) {
seterr(ERROR_SIZE_ARSYMTAB);
return NULL;
}
if (!(syms = (Elf_Arsym*)malloc((count + 1) * sizeof(*syms)))) {
seterr(ERROR_MEM_ARSYMTAB);
return NULL;
}
s = elf->e_symtab + 4 * (count + 1);
e = elf->e_symtab + elf->e_symlen;
for (i = 0; i < count; i++, s++) {
syms[i].as_name = s;
while (s < e && *s) {
s++;
}
if (s >= e) {
seterr(ERROR_SIZE_ARSYMTAB);
free(syms);
return NULL;
}
elf_assert(!*s);
syms[i].as_hash = elf_hash((unsigned char*)syms[i].as_name);
syms[i].as_off = __load_u32M(elf->e_symtab + 4 * (i + 1));
}
syms[count].as_name = NULL;
syms[count].as_hash = ~0UL;
syms[count].as_off = 0;
elf->e_symtab = (char*)syms;
elf->e_symlen = count + 1;
elf->e_free_syms = 1;
}
*ptr = elf->e_symlen;
return (Elf_Arsym*)elf->e_symtab;
}

33
external/libelf/src/getbase.c vendored Normal file
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@@ -0,0 +1,33 @@
/*
getbase.c - implementation of the elf_getbase(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getbase.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
off_t
elf_getbase(Elf *elf) {
if (!elf) {
return -1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
return (off_t)elf->e_base;
}

157
external/libelf/src/getdata.c vendored Normal file
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@@ -0,0 +1,157 @@
/*
getdata.c - implementation of the elf_getdata(3) function.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getdata.c,v 1.13 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
static Elf_Data*
_elf_cook_scn(Elf *elf, Elf_Scn *scn, Scn_Data *sd) {
Elf_Data dst;
Elf_Data src;
int flag = 0;
size_t dlen;
elf_assert(elf->e_data);
/*
* Prepare source
*/
src = sd->sd_data;
src.d_version = elf->e_version;
if (elf->e_rawdata) {
src.d_buf = elf->e_rawdata + scn->s_offset;
}
else {
src.d_buf = elf->e_data + scn->s_offset;
}
/*
* Prepare destination (needs prepared source!)
*/
dst = sd->sd_data;
if (elf->e_class == ELFCLASS32) {
dlen = _elf32_xltsize(&src, dst.d_version, elf->e_encoding, 0);
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
dlen = _elf64_xltsize(&src, dst.d_version, elf->e_encoding, 0);
}
#endif /* __LIBELF64 */
else {
elf_assert(valid_class(elf->e_class));
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
if (dlen == (size_t)-1) {
return NULL;
}
dst.d_size = dlen;
if (elf->e_rawdata != elf->e_data && dst.d_size <= src.d_size) {
dst.d_buf = elf->e_data + scn->s_offset;
}
else if (!(dst.d_buf = malloc(dst.d_size))) {
seterr(ERROR_MEM_SCNDATA);
return NULL;
}
else {
flag = 1;
}
/*
* Translate data
*/
if (_elf_xlatetom(elf, &dst, &src)) {
sd->sd_memdata = (char*)dst.d_buf;
sd->sd_data = dst;
if (!(sd->sd_free_data = flag)) {
elf->e_cooked = 1;
}
return &sd->sd_data;
}
if (flag) {
free(dst.d_buf);
}
return NULL;
}
Elf_Data*
elf_getdata(Elf_Scn *scn, Elf_Data *data) {
Scn_Data *sd;
Elf *elf;
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
if (scn->s_index == SHN_UNDEF) {
seterr(ERROR_NULLSCN);
}
else if (data) {
for (sd = scn->s_data_1; sd; sd = sd->sd_link) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
if (data == &sd->sd_data) {
/*
* sd_link allocated by elf_newdata().
*/
return &sd->sd_link->sd_data;
}
}
seterr(ERROR_SCNDATAMISMATCH);
}
else if ((sd = scn->s_data_1)) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
elf = scn->s_elf;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
if (sd->sd_freeme) {
/* allocated by elf_newdata() */
return &sd->sd_data;
}
else if (scn->s_type == SHT_NULL) {
seterr(ERROR_NULLSCN);
}
else if (sd->sd_memdata) {
/* already cooked */
return &sd->sd_data;
}
else if (scn->s_offset < 0 || scn->s_offset > elf->e_size) {
seterr(ERROR_OUTSIDE);
}
else if (scn->s_type == SHT_NOBITS || !scn->s_size) {
/* no data to read */
return &sd->sd_data;
}
else if (scn->s_offset + scn->s_size > elf->e_size) {
seterr(ERROR_TRUNC_SCN);
}
else if (valid_class(elf->e_class)) {
return _elf_cook_scn(elf, scn, sd);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
}
return NULL;
}

48
external/libelf/src/getident.c vendored Normal file
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@@ -0,0 +1,48 @@
/*
getident.c - implementation of the elf_getident(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getident.c,v 1.7 2008/05/23 08:15:34 michael Exp $";
#endif /* lint */
char*
elf_getident(Elf *elf, size_t *ptr) {
size_t tmp;
if (!ptr) {
ptr = &tmp;
}
if (!elf) {
*ptr = 0;
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
*ptr = elf->e_idlen;
return elf->e_data;
}
if (elf->e_ehdr || _elf_cook(elf)) {
*ptr = elf->e_idlen;
return elf->e_ehdr;
}
*ptr = 0;
return NULL;
}

48
external/libelf/src/getscn.c vendored Normal file
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@@ -0,0 +1,48 @@
/*
getscn.c - implementation of the elf_getscn(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Scn*
elf_getscn(Elf *elf, size_t index) {
Elf_Scn *scn;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_ehdr || _elf_cook(elf)) {
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf == elf);
if (scn->s_index == index) {
return scn;
}
}
seterr(ERROR_NOSUCHSCN);
}
return NULL;
}

38
external/libelf/src/hash.c vendored Normal file
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@@ -0,0 +1,38 @@
/*
hash.c - implementation of the elf_hash(3) function.
Copyright (C) 1995 - 2002 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: hash.c,v 1.10 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
unsigned long
elf_hash(const unsigned char *name) {
unsigned long hash = 0;
unsigned long tmp;
while (*name) {
hash = (hash << 4) + (unsigned char)*name++;
if ((tmp = hash & 0xf0000000)) {
hash ^= tmp | (tmp >> 24);
}
}
return hash;
}

106
external/libelf/src/input.c vendored Normal file
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@@ -0,0 +1,106 @@
/*
* input.c - low-level input for libelf.
* Copyright (C) 1995 - 2001, 2005 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: input.c,v 1.11 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#include <errno.h>
#if HAVE_MMAP
#include <sys/mman.h>
#endif /* HAVE_MMAP */
static int
xread(int fd, char *buffer, size_t len) {
size_t done = 0;
size_t n;
while (done < len) {
n = read(fd, buffer + done, len - done);
if (n == 0) {
/* premature end of file */
return -1;
}
else if (n != (size_t)-1) {
/* some bytes read, continue */
done += n;
}
else if (errno != EAGAIN && errno != EINTR) {
/* real error */
return -1;
}
}
return 0;
}
void*
_elf_read(Elf *elf, void *buffer, size_t off, size_t len) {
void *tmp;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
elf_assert(off >= 0 && off + len <= elf->e_size);
if (elf->e_disabled) {
seterr(ERROR_FDDISABLED);
}
else if (len) {
off += elf->e_base;
if (lseek(elf->e_fd, (off_t)off, SEEK_SET) != (off_t)off) {
seterr(ERROR_IO_SEEK);
}
else if (!(tmp = buffer) && !(tmp = malloc(len))) {
seterr(ERROR_IO_2BIG);
}
else if (xread(elf->e_fd, tmp, len)) {
seterr(ERROR_IO_READ);
if (tmp != buffer) {
free(tmp);
}
}
else {
return tmp;
}
}
return NULL;
}
void*
_elf_mmap(Elf *elf) {
#if HAVE_MMAP
void *tmp;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
elf_assert(elf->e_base == 0);
if (elf->e_disabled) {
seterr(ERROR_FDDISABLED);
}
else if (elf->e_size) {
tmp = (void*)mmap(0, elf->e_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE, elf->e_fd, 0);
if (tmp != (void*)-1) {
return tmp;
}
}
#endif /* HAVE_MMAP */
return NULL;
}

33
external/libelf/src/kind.c vendored Normal file
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@@ -0,0 +1,33 @@
/*
kind.c - implementation of the elf_kind(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: kind.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Kind
elf_kind(Elf *elf) {
if (!elf) {
return ELF_K_NONE;
}
elf_assert(elf->e_magic == ELF_MAGIC);
return elf->e_kind;
}

82
external/libelf/src/libelf.def vendored Normal file
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@@ -0,0 +1,82 @@
LIBRARY libelf
VERSION 0.8
EXPORTS
elf_begin
elf_cntl
elf_delscn
elf_end
elf_errmsg
elf_errno
elf_fill
elf_flagdata
elf_flagehdr
elf_flagelf
elf_flagphdr
elf_flagscn
elf_flagshdr
elf_getarhdr
elf_getarsym
elf_getbase
elf_getdata
elf_getident
elf_getscn
elf_hash
elf_kind
elf_memory
elf_ndxscn
elf_newdata
elf_newscn
elf_next
elf_nextscn
elf_rand
elf_rawdata
elf_rawfile
elf_strptr
elf_update
elf_version
elf32_checksum
elf32_fsize
elf32_getehdr
elf32_getphdr
elf32_getshdr
elf32_newehdr
elf32_newphdr
elf32_xlatetof
elf32_xlatetom
elf64_checksum
elf64_fsize
elf64_getehdr
elf64_getphdr
elf64_getshdr
elf64_newehdr
elf64_newphdr
elf64_xlatetof
elf64_xlatetom
elfx_movscn
elfx_remscn
gelf_checksum
gelf_fsize
gelf_getclass
gelf_getdyn
gelf_getehdr
gelf_getphdr
gelf_getrel
gelf_getrela
gelf_getshdr
gelf_getsym
gelf_msize
gelf_newehdr
gelf_newphdr
gelf_update_dyn
gelf_update_ehdr
gelf_update_phdr
gelf_update_rel
gelf_update_rela
gelf_update_shdr
gelf_update_sym
gelf_xlatetof
gelf_xlatetom
elf_getphnum
elf_getshnum
elf_getshstrndx
elfx_update_shstrndx

53
external/libelf/src/memset.c vendored Normal file
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@@ -0,0 +1,53 @@
/*
* memset.c - replacement for memset(3), using duff's device.
* Copyright (C) 1995 - 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
#ifndef lint
static const char rcsid[] = "@(#) $Id: memset.c,v 1.11 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#include <stddef.h> /* for size_t */
#include <sys/types.h>
void*
_elf_memset(void *s, int c, size_t n) {
char *t = (char*)s;
if (n) {
switch (n % 8u) {
do {
n -= 8;
default:
case 0: *t++ = (char)c;
case 7: *t++ = (char)c;
case 6: *t++ = (char)c;
case 5: *t++ = (char)c;
case 4: *t++ = (char)c;
case 3: *t++ = (char)c;
case 2: *t++ = (char)c;
case 1: *t++ = (char)c;
}
while (n > 8);
}
}
return s;
}

33
external/libelf/src/ndxscn.c vendored Normal file
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@@ -0,0 +1,33 @@
/*
ndxscn.c - implementation of the elf_ndxscn(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: ndxscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
size_t
elf_ndxscn(Elf_Scn *scn) {
if (!scn) {
return SHN_UNDEF;
}
elf_assert(scn->s_magic == SCN_MAGIC);
return scn->s_index;
}

56
external/libelf/src/newdata.c vendored Normal file
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@@ -0,0 +1,56 @@
/*
newdata.c - implementation of the elf_newdata(3) function.
Copyright (C) 1995 - 2000 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: newdata.c,v 1.10 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Data*
elf_newdata(Elf_Scn *scn) {
Scn_Data *sd;
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
if (scn->s_index == SHN_UNDEF) {
seterr(ERROR_NULLSCN);
}
else if (!(sd = (Scn_Data*)malloc(sizeof(*sd)))) {
seterr(ERROR_MEM_SCNDATA);
}
else {
*sd = _elf_data_init;
sd->sd_scn = scn;
sd->sd_data_flags = ELF_F_DIRTY;
sd->sd_freeme = 1;
sd->sd_data.d_version = _elf_version;
if (scn->s_data_n) {
scn->s_data_n->sd_link = sd;
}
else {
scn->s_data_1 = sd;
}
scn->s_data_n = sd;
return &sd->sd_data;
}
return NULL;
}

145
external/libelf/src/newscn.c vendored Normal file
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@@ -0,0 +1,145 @@
/*
* newscn.c - implementation of the elf_newscn(3) function.
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: newscn.c,v 1.13 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
int
_elf_update_shnum(Elf *elf, size_t shnum) {
size_t extshnum = 0;
Elf_Scn *scn;
elf_assert(elf);
elf_assert(elf->e_ehdr);
scn = elf->e_scn_1;
elf_assert(scn);
elf_assert(scn->s_index == 0);
if (shnum >= SHN_LORESERVE) {
extshnum = shnum;
shnum = 0;
}
if (elf->e_class == ELFCLASS32) {
((Elf32_Ehdr*)elf->e_ehdr)->e_shnum = shnum;
scn->s_shdr32.sh_size = extshnum;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
((Elf64_Ehdr*)elf->e_ehdr)->e_shnum = shnum;
scn->s_shdr64.sh_size = extshnum;
}
#endif /* __LIBELF64 */
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return -1;
}
elf->e_ehdr_flags |= ELF_F_DIRTY;
scn->s_shdr_flags |= ELF_F_DIRTY;
return 0;
}
static Elf_Scn*
_makescn(Elf *elf, size_t index) {
Elf_Scn *scn;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
elf_assert(elf->e_ehdr);
elf_assert(_elf_scn_init.s_magic == SCN_MAGIC);
if (!(scn = (Elf_Scn*)malloc(sizeof(*scn)))) {
seterr(ERROR_MEM_SCN);
return NULL;
}
*scn = _elf_scn_init;
scn->s_elf = elf;
scn->s_scn_flags = ELF_F_DIRTY;
scn->s_shdr_flags = ELF_F_DIRTY;
scn->s_freeme = 1;
scn->s_index = index;
return scn;
}
Elf_Scn*
_elf_first_scn(Elf *elf) {
Elf_Scn *scn;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
if ((scn = elf->e_scn_1)) {
return scn;
}
if ((scn = _makescn(elf, 0))) {
elf->e_scn_1 = elf->e_scn_n = scn;
if (_elf_update_shnum(elf, 1)) {
free(scn);
elf->e_scn_1 = elf->e_scn_n = scn = NULL;
}
}
return scn;
}
static Elf_Scn*
_buildscn(Elf *elf) {
Elf_Scn *scn;
if (!_elf_first_scn(elf)) {
return NULL;
}
scn = elf->e_scn_n;
elf_assert(scn);
if (!(scn = _makescn(elf, scn->s_index + 1))) {
return NULL;
}
if (_elf_update_shnum(elf, scn->s_index + 1)) {
free(scn);
return NULL;
}
elf->e_scn_n = elf->e_scn_n->s_link = scn;
return scn;
}
Elf_Scn*
elf_newscn(Elf *elf) {
Elf_Scn *scn;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!elf->e_readable && !elf->e_ehdr) {
seterr(ERROR_NOEHDR);
}
else if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (!elf->e_ehdr && !_elf_cook(elf)) {
return NULL;
}
else if ((scn = _buildscn(elf))) {
return scn;
}
return NULL;
}

42
external/libelf/src/next.c vendored Normal file
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@@ -0,0 +1,42 @@
/*
next.c - implementation of the elf_next(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: next.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Cmd
elf_next(Elf *elf) {
if (!elf) {
return ELF_C_NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!elf->e_parent) {
return ELF_C_NULL;
}
elf_assert(elf->e_parent->e_magic == ELF_MAGIC);
elf_assert(elf->e_parent->e_kind == ELF_K_AR);
elf->e_parent->e_off = elf->e_next;
if (elf->e_next == elf->e_parent->e_size) {
return ELF_C_NULL;
}
return ELF_C_READ;
}

54
external/libelf/src/nextscn.c vendored Normal file
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@@ -0,0 +1,54 @@
/*
nextscn.c - implementation of the elf_nextscn(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: nextscn.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Scn*
elf_nextscn(Elf *elf, Elf_Scn *scn) {
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (scn) {
elf_assert(scn->s_magic == SCN_MAGIC);
if (scn->s_elf == elf) {
return scn->s_link;
}
seterr(ERROR_ELFSCNMISMATCH);
}
else if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (elf->e_ehdr || _elf_cook(elf)) {
elf_assert(elf->e_ehdr);
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(scn->s_elf == elf);
if (scn->s_index == 1) {
return scn;
}
}
seterr(ERROR_NOSUCHSCN);
}
return NULL;
}

253
external/libelf/src/nlist.c vendored Normal file
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@@ -0,0 +1,253 @@
/*
* nlist.c - implementation of the nlist(3) function.
* Copyright (C) 1995 - 2004 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <nlist.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: nlist.c,v 1.15 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#if !defined(_WIN32)
#if HAVE_FCNTL_H
#include <fcntl.h>
#else
extern int open();
#endif /* HAVE_FCNTL_H */
#endif /* defined(_WIN32) */
#ifndef O_RDONLY
#define O_RDONLY 0
#endif /* O_RDONLY */
#ifndef O_BINARY
#define O_BINARY 0
#endif /* O_BINARY */
#define FILE_OPEN_MODE (O_RDONLY | O_BINARY)
#define PRIME 217
struct hash {
const char* name;
unsigned long hash;
unsigned next;
};
static const char*
symbol_name(Elf *elf, const void *syms, const char *names, size_t nlimit, size_t index) {
size_t off;
if (elf->e_class == ELFCLASS32) {
off = ((Elf32_Sym*)syms)[index].st_name;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
off = ((Elf64_Sym*)syms)[index].st_name;
}
#endif /* __LIBELF64 */
else {
return NULL;
}
if (off >= 0 && off < nlimit) {
return &names[off];
}
return NULL;
}
static void
copy_symbol(Elf *elf, struct nlist *np, const void *syms, size_t index) {
if (elf->e_class == ELFCLASS32) {
np->n_value = ((Elf32_Sym*)syms)[index].st_value;
np->n_scnum = ((Elf32_Sym*)syms)[index].st_shndx;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
np->n_value = ((Elf64_Sym*)syms)[index].st_value;
np->n_scnum = ((Elf64_Sym*)syms)[index].st_shndx;
}
#endif /* __LIBELF64 */
/*
* this needs more work
*/
np->n_type = 0;
np->n_sclass = 0;
np->n_numaux = 0;
}
static int
_elf_nlist(Elf *elf, struct nlist *nl) {
unsigned first[PRIME];
Elf_Scn *symtab = NULL;
Elf_Scn *strtab = NULL;
Elf_Data *symdata;
Elf_Data *strdata;
size_t symsize;
size_t nsymbols;
const char *name;
struct hash *table;
unsigned long hash;
unsigned i;
struct nlist *np;
/*
* Get and translate ELF header, section table and so on.
* Must be class independent, so don't use elf32_get*().
*/
if (elf->e_kind != ELF_K_ELF) {
return -1;
}
if (!elf->e_ehdr && !_elf_cook(elf)) {
return -1;
}
/*
* Find symbol table. If there is none, try dynamic symbols.
*/
for (symtab = elf->e_scn_1; symtab; symtab = symtab->s_link) {
if (symtab->s_type == SHT_SYMTAB) {
break;
}
if (symtab->s_type == SHT_DYNSYM) {
strtab = symtab;
}
}
if (!symtab && !(symtab = strtab)) {
return -1;
}
/*
* Get associated string table.
*/
i = 0;
if (elf->e_class == ELFCLASS32) {
i = symtab->s_shdr32.sh_link;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
i = symtab->s_shdr64.sh_link;
}
#endif /* __LIBELF64 */
if (i == 0) {
return -1;
}
for (strtab = elf->e_scn_1; strtab; strtab = strtab->s_link) {
if (strtab->s_index == i) {
break;
}
}
if (!strtab || strtab->s_type != SHT_STRTAB) {
return -1;
}
/*
* Get and translate section data.
*/
symdata = elf_getdata(symtab, NULL);
strdata = elf_getdata(strtab, NULL);
if (!symdata || !strdata) {
return -1;
}
symsize = _msize(elf->e_class, _elf_version, ELF_T_SYM);
elf_assert(symsize);
nsymbols = symdata->d_size / symsize;
if (!symdata->d_buf || !strdata->d_buf || !nsymbols || !strdata->d_size) {
return -1;
}
/*
* Build a simple hash table.
*/
if (!(table = (struct hash*)malloc(nsymbols * sizeof(*table)))) {
return -1;
}
for (i = 0; i < PRIME; i++) {
first[i] = 0;
}
for (i = 0; i < nsymbols; i++) {
table[i].name = NULL;
table[i].hash = 0;
table[i].next = 0;
}
for (i = 1; i < nsymbols; i++) {
name = symbol_name(elf, symdata->d_buf, strdata->d_buf,
strdata->d_size, i);
if (name == NULL) {
free(table);
return -1;
}
if (*name != '\0') {
table[i].name = name;
table[i].hash = elf_hash((unsigned char*)name);
hash = table[i].hash % PRIME;
table[i].next = first[hash];
first[hash] = i;
}
}
/*
* Lookup symbols, one by one.
*/
for (np = nl; (name = np->n_name) && *name; np++) {
hash = elf_hash((unsigned char*)name);
for (i = first[hash % PRIME]; i; i = table[i].next) {
if (table[i].hash == hash && !strcmp(table[i].name, name)) {
break;
}
}
if (i) {
copy_symbol(elf, np, symdata->d_buf, i);
}
else {
np->n_value = 0;
np->n_scnum = 0;
np->n_type = 0;
np->n_sclass = 0;
np->n_numaux = 0;
}
}
free(table);
return 0;
}
int
nlist(const char *filename, struct nlist *nl) {
int result = -1;
unsigned oldver;
Elf *elf;
int fd;
if ((oldver = elf_version(EV_CURRENT)) != EV_NONE) {
if ((fd = open(filename, FILE_OPEN_MODE)) != -1) {
if ((elf = elf_begin(fd, ELF_C_READ, NULL))) {
result = _elf_nlist(elf, nl);
elf_end(elf);
}
close(fd);
}
elf_version(oldver);
}
if (result) {
while (nl->n_name && *nl->n_name) {
nl->n_value = 0;
nl++;
}
}
return result;
}

48
external/libelf/src/nlist.h vendored Normal file
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@@ -0,0 +1,48 @@
/*
* nlist.h - public header file for nlist(3).
* Copyright (C) 1995 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: nlist.h,v 1.10 2008/05/23 08:15:35 michael Exp $ */
#ifndef _NLIST_H
#define _NLIST_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
struct nlist {
char* n_name;
long n_value;
short n_scnum;
unsigned short n_type;
char n_sclass;
char n_numaux;
};
#if (__STDC__ + 0) || defined(__cplusplus) || defined(_WIN32)
extern int nlist(const char *__filename, struct nlist *__nl);
#else /* __STDC__ || defined(__cplusplus) */
extern int nlist();
#endif /* __STDC__ || defined(__cplusplus) */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _NLIST_H */

205
external/libelf/src/opt.delscn.c vendored Normal file
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@@ -0,0 +1,205 @@
/*
opt.delscn.c - implementation of the elf_delscn(3) function.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: opt.delscn.c,v 1.12 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
static size_t
_newindex(size_t old, size_t index) {
return old == index ? SHN_UNDEF : (old > index ? old - 1 : old);
}
static void
_elf32_update_shdr(Elf *elf, size_t index) {
Elf32_Shdr *shdr;
Elf_Scn *scn;
((Elf32_Ehdr*)elf->e_ehdr)->e_shnum = elf->e_scn_n->s_index + 1;
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
shdr = &scn->s_shdr32;
switch (shdr->sh_type) {
case SHT_REL:
case SHT_RELA:
shdr->sh_info = _newindex(shdr->sh_info, index);
/* fall through */
case SHT_DYNSYM:
case SHT_DYNAMIC:
case SHT_HASH:
case SHT_SYMTAB:
#if __LIBELF_SYMBOL_VERSIONS
#if __LIBELF_SUN_SYMBOL_VERSIONS
case SHT_SUNW_verdef:
case SHT_SUNW_verneed:
case SHT_SUNW_versym:
#else /* __LIBELF_SUN_SYMBOL_VERSIONS */
case SHT_GNU_verdef:
case SHT_GNU_verneed:
case SHT_GNU_versym:
#endif /* __LIBELF_SUN_SYMBOL_VERSIONS */
#endif /* __LIBELF_SYMBOL_VERSIONS */
shdr->sh_link = _newindex(shdr->sh_link, index);
/* fall through */
default:
break;
}
}
}
#if __LIBELF64
static void
_elf64_update_shdr(Elf *elf, size_t index) {
Elf64_Shdr *shdr;
Elf_Scn *scn;
((Elf64_Ehdr*)elf->e_ehdr)->e_shnum = elf->e_scn_n->s_index + 1;
for (scn = elf->e_scn_1; scn; scn = scn->s_link) {
shdr = &scn->s_shdr64;
switch (shdr->sh_type) {
case SHT_REL:
case SHT_RELA:
shdr->sh_info = _newindex(shdr->sh_info, index);
/* fall through */
case SHT_DYNSYM:
case SHT_DYNAMIC:
case SHT_HASH:
case SHT_SYMTAB:
#if __LIBELF_SYMBOL_VERSIONS
#if __LIBELF_SUN_SYMBOL_VERSIONS
case SHT_SUNW_verdef:
case SHT_SUNW_verneed:
case SHT_SUNW_versym:
#else /* __LIBELF_SUN_SYMBOL_VERSIONS */
case SHT_GNU_verdef:
case SHT_GNU_verneed:
case SHT_GNU_versym:
#endif /* __LIBELF_SUN_SYMBOL_VERSIONS */
#endif /* __LIBELF_SYMBOL_VERSIONS */
shdr->sh_link = _newindex(shdr->sh_link, index);
/* fall through */
default:
break;
}
}
}
#endif /* __LIBELF64 */
size_t
elf_delscn(Elf *elf, Elf_Scn *scn) {
Elf_Scn *pscn;
Scn_Data *sd;
Scn_Data *tmp;
size_t index;
if (!elf || !scn) {
return SHN_UNDEF;
}
elf_assert(elf->e_magic == ELF_MAGIC);
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(elf->e_ehdr);
if (scn->s_elf != elf) {
seterr(ERROR_ELFSCNMISMATCH);
return SHN_UNDEF;
}
elf_assert(elf->e_scn_1);
if (scn == elf->e_scn_1) {
seterr(ERROR_NULLSCN);
return SHN_UNDEF;
}
/*
* Find previous section.
*/
for (pscn = elf->e_scn_1; pscn->s_link; pscn = pscn->s_link) {
if (pscn->s_link == scn) {
break;
}
}
if (pscn->s_link != scn) {
seterr(ERROR_ELFSCNMISMATCH);
return SHN_UNDEF;
}
/*
* Unlink section.
*/
if (elf->e_scn_n == scn) {
elf->e_scn_n = pscn;
}
pscn->s_link = scn->s_link;
index = scn->s_index;
/*
* Free section descriptor and data.
*/
for (sd = scn->s_data_1; sd; sd = tmp) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
tmp = sd->sd_link;
if (sd->sd_free_data && sd->sd_memdata) {
free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if ((sd = scn->s_rawdata)) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
if (sd->sd_free_data && sd->sd_memdata) {
free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if (scn->s_freeme) {
elf_assert(scn->s_index > 0);
free(scn);
}
/*
* Adjust section indices.
*/
for (scn = pscn->s_link; scn; scn = scn->s_link) {
elf_assert(scn->s_index > index);
scn->s_index--;
}
/*
* Adjust ELF header and well-known section headers.
*/
if (elf->e_class == ELFCLASS32) {
_elf32_update_shdr(elf, index);
return index;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
_elf64_update_shdr(elf, index);
return index;
}
#endif /* __LIBELF64 */
else if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return SHN_UNDEF;
}

446
external/libelf/src/private.h vendored Normal file
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@@ -0,0 +1,446 @@
/*
* private.h - private definitions for libelf.
* Copyright (C) 1995 - 2007 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* @(#) $Id: private.h,v 1.40 2009/11/01 13:04:19 michael Exp $ */
#ifndef _PRIVATE_H
#define _PRIVATE_H
#define __LIBELF_INTERNAL__ 1
#if HAVE_CONFIG_H
# include <config.h>
#endif /* HAVE_CONFIG_H */
/*
* Workaround for GLIBC bug:
* include <stdint.h> before <sys/types.h>
*/
#if HAVE_STDINT_H
#include <stdint.h>
#endif
#include <sys/types.h>
#if STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#else /* STDC_HEADERS */
extern void *malloc(), *realloc();
extern void free(), bcopy(), abort();
extern int strcmp(), strncmp(), memcmp();
extern void *memcpy(), *memmove(), *memset();
#endif /* STDC_HEADERS */
#if defined(_WIN32)
#include <io.h>
#else
#if HAVE_UNISTD_H
# include <unistd.h>
#else /* HAVE_UNISTD_H */
extern int read(), write(), close();
extern off_t lseek();
#if HAVE_FTRUNCATE
extern int ftruncate();
#endif /* HAVE_FTRUNCATE */
#endif /* HAVE_UNISTD_H */
#endif /* defined(_WIN32) */
#ifndef SEEK_SET
#define SEEK_SET 0
#endif /* SEEK_SET */
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif /* SEEK_CUR */
#ifndef SEEK_END
#define SEEK_END 2
#endif /* SEEK_END */
#if !HAVE_MEMCMP
# define memcmp strncmp
#endif /* !HAVE_MEMCMP */
#if !HAVE_MEMCPY
# define memcpy(d,s,n) bcopy(s,d,n)
#endif /* !HAVE_MEMCPY */
#if !HAVE_MEMMOVE
# define memmove(d,s,n) bcopy(s,d,n)
#endif /* !HAVE_MEMMOVE */
#if !HAVE_MEMSET
# define memset _elf_memset
extern void *_elf_memset();
#endif /* !HAVE_MEMSET */
#if HAVE_STRUCT_NLIST_DECLARATION
# define nlist __override_nlist_declaration
#endif /* HAVE_STRUCT_NLIST_DECLARATION */
#if __LIBELF_NEED_LINK_H
# include <link.h>
#elif __LIBELF_NEED_SYS_LINK_H
# include <sys/link.h>
#endif /* __LIBELF_NEED_LINK_H */
#if HAVE_AR_H
#include <ar.h>
#else /* HAVE_AR_H */
#define ARMAG "!<arch>\n"
#define SARMAG 8
struct ar_hdr {
char ar_name[16];
char ar_date[12];
char ar_uid[6];
char ar_gid[6];
char ar_mode[8];
char ar_size[10];
char ar_fmag[2];
};
#define ARFMAG "`\n"
#endif /* HAVE_AR_H */
#include <libelf.h>
#if HAVE_STRUCT_NLIST_DECLARATION
# undef nlist
#endif /* HAVE_STRUCT_NLIST_DECLARATION */
#if __LIBELF64
#include <gelf.h>
#endif /* __LIBELF64 */
typedef struct Scn_Data Scn_Data;
/*
* ELF descriptor
*/
struct Elf {
/* common */
size_t e_size; /* file/member size */
size_t e_dsize; /* size of memory image */
Elf_Kind e_kind; /* kind of file */
char* e_data; /* file/member data */
char* e_rawdata; /* file/member raw data */
size_t e_idlen; /* identifier size */
int e_fd; /* file descriptor */
unsigned e_count; /* activation count */
/* archive members (still common) */
Elf* e_parent; /* NULL if not an archive member */
size_t e_next; /* 0 if not an archive member */
size_t e_base; /* 0 if not an archive member */
Elf* e_link; /* next archive member or NULL */
Elf_Arhdr* e_arhdr; /* archive member header or NULL */
/* archives */
size_t e_off; /* current member offset (for elf_begin) */
Elf* e_members; /* linked list of active archive members */
char* e_symtab; /* archive symbol table */
size_t e_symlen; /* length of archive symbol table */
char* e_strtab; /* archive string table */
size_t e_strlen; /* length of archive string table */
/* ELF files */
unsigned e_class; /* ELF class */
unsigned e_encoding; /* ELF data encoding */
unsigned e_version; /* ELF version */
char* e_ehdr; /* ELF header */
char* e_phdr; /* ELF program header table */
size_t e_phnum; /* size of program header table */
Elf_Scn* e_scn_1; /* first section */
Elf_Scn* e_scn_n; /* last section */
unsigned e_elf_flags; /* elf flags (ELF_F_*) */
unsigned e_ehdr_flags; /* ehdr flags (ELF_F_*) */
unsigned e_phdr_flags; /* phdr flags (ELF_F_*) */
/* misc flags */
unsigned e_readable : 1; /* file is readable */
unsigned e_writable : 1; /* file is writable */
unsigned e_disabled : 1; /* e_fd has been disabled */
unsigned e_cooked : 1; /* e_data was modified */
unsigned e_free_syms : 1; /* e_symtab is malloc'ed */
unsigned e_unmap_data : 1; /* e_data is mmap'ed */
unsigned e_memory : 1; /* created by elf_memory() */
/* magic number for debugging */
long e_magic;
};
#define ELF_MAGIC 0x012b649e
#define INIT_ELF {\
/* e_size */ 0,\
/* e_dsize */ 0,\
/* e_kind */ ELF_K_NONE,\
/* e_data */ NULL,\
/* e_rawdata */ NULL,\
/* e_idlen */ 0,\
/* e_fd */ -1,\
/* e_count */ 1,\
/* e_parent */ NULL,\
/* e_next */ 0,\
/* e_base */ 0,\
/* e_link */ NULL,\
/* e_arhdr */ NULL,\
/* e_off */ 0,\
/* e_members */ NULL,\
/* e_symtab */ NULL,\
/* e_symlen */ 0,\
/* e_strtab */ NULL,\
/* e_strlen */ 0,\
/* e_class */ ELFCLASSNONE,\
/* e_encoding */ ELFDATANONE,\
/* e_version */ EV_NONE,\
/* e_ehdr */ NULL,\
/* e_phdr */ NULL,\
/* e_phnum */ 0,\
/* e_scn_1 */ NULL,\
/* e_scn_n */ NULL,\
/* e_elf_flags */ 0,\
/* e_ehdr_flags */ 0,\
/* e_phdr_flags */ 0,\
/* e_readable */ 0,\
/* e_writable */ 0,\
/* e_disabled */ 0,\
/* e_cooked */ 0,\
/* e_free_syms */ 0,\
/* e_unmap_data */ 0,\
/* e_memory */ 0,\
/* e_magic */ ELF_MAGIC\
}
/*
* Section descriptor
*/
struct Elf_Scn {
Elf_Scn* s_link; /* pointer to next Elf_Scn */
Elf* s_elf; /* pointer to elf descriptor */
size_t s_index; /* number of this section */
unsigned s_scn_flags; /* section flags (ELF_F_*) */
unsigned s_shdr_flags; /* shdr flags (ELF_F_*) */
Scn_Data* s_data_1; /* first data buffer */
Scn_Data* s_data_n; /* last data buffer */
Scn_Data* s_rawdata; /* raw data buffer */
/* data copied from shdr */
unsigned s_type; /* section type */
size_t s_offset; /* section offset */
size_t s_size; /* section size */
/* misc flags */
unsigned s_freeme : 1; /* this Elf_Scn was malloc'ed */
/* section header */
union {
#if __LIBELF64
Elf64_Shdr u_shdr64;
#endif /* __LIBELF64 */
Elf32_Shdr u_shdr32;
} s_uhdr;
/* magic number for debugging */
long s_magic;
};
#define s_shdr32 s_uhdr.u_shdr32
#define s_shdr64 s_uhdr.u_shdr64
#define SCN_MAGIC 0x012c747d
#define INIT_SCN {\
/* s_link */ NULL,\
/* s_elf */ NULL,\
/* s_index */ 0,\
/* s_scn_flags */ 0,\
/* s_shdr_flags */ 0,\
/* s_data_1 */ NULL,\
/* s_data_n */ NULL,\
/* s_rawdata */ NULL,\
/* s_type */ SHT_NULL,\
/* s_offset */ 0,\
/* s_size */ 0,\
/* s_freeme */ 0,\
/* s_uhdr */ {{0,}},\
/* s_magic */ SCN_MAGIC\
}
/*
* Data descriptor
*/
struct Scn_Data {
Elf_Data sd_data; /* must be first! */
Scn_Data* sd_link; /* pointer to next Scn_Data */
Elf_Scn* sd_scn; /* pointer to section */
char* sd_memdata; /* memory image of section */
unsigned sd_data_flags; /* data flags (ELF_F_*) */
/* misc flags */
unsigned sd_freeme : 1; /* this Scn_Data was malloc'ed */
unsigned sd_free_data : 1; /* sd_memdata is malloc'ed */
/* magic number for debugging */
long sd_magic;
};
#define DATA_MAGIC 0x01072639
#define INIT_DATA {\
{\
/* d_buf */ NULL,\
/* d_type */ ELF_T_BYTE,\
/* d_size */ 0,\
/* d_off */ 0,\
/* d_align */ 0,\
/* d_version */ EV_NONE\
},\
/* sd_link */ NULL,\
/* sd_scn */ NULL,\
/* sd_memdata */ NULL,\
/* sd_data_flags */ 0,\
/* sd_freeme */ 0,\
/* sd_free_data */ 0,\
/* sd_magic */ DATA_MAGIC\
}
/*
* Private status variables
*/
extern unsigned _elf_version;
extern int _elf_errno;
extern int _elf_fill;
extern int _elf_sanity_checks;
#define SANITY_CHECK_STRPTR (1u << 0)
/*
* Private functions
*/
extern void *_elf_read __P((Elf*, void*, size_t, size_t));
extern void *_elf_mmap __P((Elf*));
extern int _elf_cook __P((Elf*));
extern char *_elf_getehdr __P((Elf*, unsigned));
extern char *_elf_getphdr __P((Elf*, unsigned));
extern Elf_Data *_elf_xlatetom __P((const Elf*, Elf_Data*, const Elf_Data*));
extern Elf_Type _elf_scn_type __P((unsigned));
extern size_t _elf32_xltsize __P((const Elf_Data *__src, unsigned __dv, unsigned __encode, int __tof));
extern size_t _elf64_xltsize __P((const Elf_Data *__src, unsigned __dv, unsigned __encode, int __tof));
extern int _elf_update_shnum(Elf *__elf, size_t __shnum);
extern Elf_Scn *_elf_first_scn(Elf *__elf);
/*
* Special translators
*/
extern size_t _elf_verdef_32L11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_32L11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_32M11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_32M11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_64L11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_64L11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_64M11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verdef_64M11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_32L11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_32L11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_32M11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_32M11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_64L11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_64L11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_64M11_tof __P((unsigned char *dst, const unsigned char *src, size_t n));
extern size_t _elf_verneed_64M11_tom __P((unsigned char *dst, const unsigned char *src, size_t n));
/*
* Private data
*/
extern const Elf_Scn _elf_scn_init;
extern const Scn_Data _elf_data_init;
extern const size_t _elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2];
/*
* Access macros for _elf_fmsize[]
*/
#define _fmsize(c,v,t,w) \
(_elf_fmsize[(c)-ELFCLASS32][(v)-EV_NONE-1][(t)-ELF_T_BYTE][(w)])
#define _fsize(c,v,t) _fmsize((c),(v),(t),1)
#define _msize(c,v,t) _fmsize((c),(v),(t),0)
/*
* Various checks
*/
#define valid_class(c) ((c) >= ELFCLASS32 && (c) <= ELFCLASS64)
#define valid_encoding(e) ((e) >= ELFDATA2LSB && (e) <= ELFDATA2MSB)
#define valid_version(v) ((v) > EV_NONE && (v) <= EV_CURRENT)
#define valid_type(t) ((unsigned)(t) < ELF_T_NUM)
/*
* Error codes
*/
enum {
#define __err__(a,b) a,
#include <errors.h> /* include constants from errors.h */
#undef __err__
ERROR_NUM
};
#define seterr(err) (_elf_errno = (err))
/*
* Sizes of data types (external representation)
* These definitions should be in <elf.h>, but...
*/
#ifndef ELF32_FSZ_ADDR
# define ELF32_FSZ_ADDR 4
# define ELF32_FSZ_HALF 2
# define ELF32_FSZ_OFF 4
# define ELF32_FSZ_SWORD 4
# define ELF32_FSZ_WORD 4
#endif /* ELF32_FSZ_ADDR */
#ifndef ELF64_FSZ_ADDR
# define ELF64_FSZ_ADDR 8
# define ELF64_FSZ_HALF 2
# define ELF64_FSZ_OFF 8
# define ELF64_FSZ_SWORD 4
# define ELF64_FSZ_SXWORD 8
# define ELF64_FSZ_WORD 4
# define ELF64_FSZ_XWORD 8
#endif /* ELF64_FSZ_ADDR */
/*
* More missing pieces, in no particular order
*/
#ifndef SHT_SYMTAB_SHNDX
#define SHT_SYMTAB_SHNDX 18
#endif /* SHT_SYMTAB_SHNDX */
#ifndef SHN_XINDEX
#define SHN_XINDEX 0xffff
#endif /* SHN_XINDEX */
#ifndef PN_XNUM
#define PN_XNUM 0xffff
#endif /* PN_XNUM */
/*
* Debugging
*/
#if ENABLE_DEBUG
extern void __elf_assert __P((const char*, unsigned, const char*));
# if (__STDC__ + 0)
# define elf_assert(x) do{if(!(x))__elf_assert(__FILE__,__LINE__,#x);}while(0)
# else /* __STDC__ */
# define elf_assert(x) do{if(!(x))__elf_assert(__FILE__,__LINE__,"x");}while(0)
# endif /* __STDC__ */
#else /* ENABLE_DEBUG */
# define elf_assert(x) do{}while(0)
#endif /* ENABLE_DEBUG */
/*
* Return values for certain functions
*/
#define LIBELF_SUCCESS 1
#define LIBELF_FAILURE 0
#endif /* _PRIVATE_H */

43
external/libelf/src/rand.c vendored Normal file
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@@ -0,0 +1,43 @@
/*
rand.c - implementation of the elf_rand(3) function.
Copyright (C) 1995 - 1998 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: rand.c,v 1.7 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
size_t
elf_rand(Elf *elf, size_t offset) {
if (!elf) {
return 0;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_AR) {
seterr(ERROR_NOTARCHIVE);
}
else if (offset <= 0 || offset > elf->e_size) {
seterr(ERROR_BADOFF);
}
else {
elf->e_off = offset;
return offset;
}
return 0;
}

89
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/*
rawdata.c - implementation of the elf_rawdata(3) function.
Copyright (C) 1995 - 2000 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: rawdata.c,v 1.10 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
Elf_Data*
elf_rawdata(Elf_Scn *scn, Elf_Data *data) {
Scn_Data *sd;
Elf *elf;
if (!scn) {
return NULL;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf = scn->s_elf;
elf_assert(elf);
elf_assert(elf->e_magic == ELF_MAGIC);
if (!elf->e_readable) {
return NULL;
}
else if (scn->s_index == SHN_UNDEF || scn->s_type == SHT_NULL) {
seterr(ERROR_NULLSCN);
}
else if (data) {
return NULL;
}
else if ((sd = scn->s_rawdata)) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
return &sd->sd_data;
}
else if (scn->s_offset < 0 || scn->s_offset > elf->e_size) {
seterr(ERROR_OUTSIDE);
}
else if (scn->s_type != SHT_NOBITS
&& scn->s_offset + scn->s_size > elf->e_size) {
seterr(ERROR_TRUNC_SCN);
}
else if (!(sd = (Scn_Data*)malloc(sizeof(*sd)))) {
seterr(ERROR_MEM_SCNDATA);
}
else {
*sd = _elf_data_init;
sd->sd_scn = scn;
sd->sd_freeme = 1;
sd->sd_data.d_size = scn->s_size;
sd->sd_data.d_version = _elf_version;
if (scn->s_type != SHT_NOBITS && scn->s_size) {
if (!(sd->sd_memdata = (char*)malloc(scn->s_size))) {
seterr(ERROR_IO_2BIG);
free(sd);
return NULL;
}
else if (elf->e_rawdata) {
memcpy(sd->sd_memdata, elf->e_rawdata + scn->s_offset, scn->s_size);
}
else if (!_elf_read(elf, sd->sd_memdata, scn->s_offset, scn->s_size)) {
free(sd->sd_memdata);
free(sd);
return NULL;
}
sd->sd_data.d_buf = sd->sd_memdata;
sd->sd_free_data = 1;
}
scn->s_rawdata = sd;
return &sd->sd_data;
}
return NULL;
}

54
external/libelf/src/rawfile.c vendored Normal file
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/*
* rawfile.c - implementation of the elf_rawfile(3) function.
* Copyright (C) 1995 - 2009 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: rawfile.c,v 1.8 2009/05/22 17:07:46 michael Exp $";
#endif /* lint */
char*
elf_rawfile(Elf *elf, size_t *ptr) {
size_t tmp;
if (!ptr) {
ptr = &tmp;
}
*ptr = 0;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!elf->e_readable) {
return NULL;
}
else if (elf->e_size) {
if (!elf->e_rawdata) {
elf_assert(elf->e_data);
if (!elf->e_cooked) {
elf->e_rawdata = elf->e_data;
}
else if (!(elf->e_rawdata = _elf_read(elf, NULL, 0, elf->e_size))) {
return NULL;
}
}
*ptr = elf->e_size;
}
return elf->e_rawdata;
}

150
external/libelf/src/strptr.c vendored Normal file
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/*
* strptr.c - implementation of the elf_strptr(3) function.
* Copyright (C) 1995 - 2007 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: strptr.c,v 1.12 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
char*
elf_strptr(Elf *elf, size_t section, size_t offset) {
Elf_Data *data;
Elf_Scn *scn;
size_t n;
char *s;
if (!elf) {
return NULL;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!(scn = elf_getscn(elf, section))) {
return NULL;
}
if (scn->s_index == SHN_UNDEF) {
seterr(ERROR_NOSTRTAB);
return NULL;
}
/*
* checking the section header is more appropriate
*/
if (elf->e_class == ELFCLASS32) {
if (scn->s_shdr32.sh_type != SHT_STRTAB) {
seterr(ERROR_NOSTRTAB);
return NULL;
}
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
if (scn->s_shdr64.sh_type != SHT_STRTAB) {
seterr(ERROR_NOSTRTAB);
return NULL;
}
}
#endif /* __LIBELF64 */
else if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
return NULL;
}
else {
seterr(ERROR_UNKNOWN_CLASS);
return NULL;
}
/*
* Find matching buffer
*/
n = 0;
data = NULL;
if (elf->e_elf_flags & ELF_F_LAYOUT) {
/*
* Programmer is responsible for d_off
* Note: buffers may be in any order!
*/
while ((data = elf_getdata(scn, data))) {
n = data->d_off;
if (offset >= n && offset - n < data->d_size) {
/*
* Found it
*/
break;
}
}
}
else {
/*
* Calculate offsets myself
*/
while ((data = elf_getdata(scn, data))) {
if (data->d_align > 1) {
n += data->d_align - 1;
n -= n % data->d_align;
}
if (offset < n) {
/*
* Invalid offset: points into a hole
*/
seterr(ERROR_BADSTROFF);
return NULL;
}
if (offset - n < data->d_size) {
/*
* Found it
*/
break;
}
n += data->d_size;
}
}
if (data == NULL) {
/*
* Not found
*/
seterr(ERROR_BADSTROFF);
return NULL;
}
if (data->d_buf == NULL) {
/*
* Buffer is NULL (usually the programmers' fault)
*/
seterr(ERROR_NULLBUF);
return NULL;
}
offset -= n;
s = (char*)data->d_buf;
if (!(_elf_sanity_checks & SANITY_CHECK_STRPTR)) {
return s + offset;
}
/*
* Perform extra sanity check
*/
for (n = offset; n < data->d_size; n++) {
if (s[n] == '\0') {
/*
* Return properly NUL terminated string
*/
return s + offset;
}
}
/*
* String is not NUL terminated
* Return error to avoid SEGV in application
*/
seterr(ERROR_UNTERM);
return NULL;
}

81
external/libelf/src/swap64.c vendored Normal file
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@@ -0,0 +1,81 @@
/*
swap64.c - 64-bit byte swapping functions.
Copyright (C) 1995 - 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <byteswap.h>
#if __LIBELF64
#ifndef lint
static const char rcsid[] = "@(#) $Id: swap64.c,v 1.6 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
__libelf_u64_t
_elf_load_u64L(const unsigned char *from) {
return ((__libelf_u64_t)__load_u32L(from + 4) << 32)
| (__libelf_u64_t)__load_u32L(from);
}
__libelf_u64_t
_elf_load_u64M(const unsigned char *from) {
return ((__libelf_u64_t)__load_u32M(from) << 32)
| (__libelf_u64_t)__load_u32M(from + 4);
}
__libelf_i64_t
_elf_load_i64L(const unsigned char *from) {
return ((__libelf_i64_t)__load_i32L(from + 4) << 32)
| (__libelf_u64_t)__load_u32L(from);
}
__libelf_i64_t
_elf_load_i64M(const unsigned char *from) {
return ((__libelf_i64_t)__load_i32M(from) << 32)
| (__libelf_u64_t)__load_u32M(from + 4);
}
void
_elf_store_u64L(unsigned char *to, __libelf_u64_t v) {
__store_u32L(to, (__libelf_u32_t)v);
v >>= 32;
__store_u32L(to + 4, (__libelf_u32_t)v);
}
void
_elf_store_u64M(unsigned char *to, __libelf_u64_t v) {
__store_u32M(to + 4, (__libelf_u32_t)v);
v >>= 32;
__store_u32M(to, (__libelf_u32_t)v);
}
void
_elf_store_i64L(unsigned char *to, __libelf_u64_t v) {
__store_u32L(to, (__libelf_u32_t)v);
v >>= 32;
__store_i32L(to + 4, (__libelf_u32_t)v);
}
void
_elf_store_i64M(unsigned char *to, __libelf_u64_t v) {
__store_u32M(to + 4, (__libelf_u32_t)v);
v >>= 32;
__store_i32M(to, (__libelf_u32_t)v);
}
#endif /* __LIBELF64 */

1021
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241
external/libelf/src/verdef.h vendored Normal file
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/*
* verdef.h - copy versioning information.
* Copyright (C) 2001 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef lint
static const char verdef_h_rcsid[] = "@(#) $Id: verdef.h,v 1.13 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#if VER_DEF_CURRENT != 1
#error libelf currently does not support VER_DEF_CURRENT != 1
#endif /* VER_DEF_CURRENT != 1 */
#if TOFILE
static void
__store_verdaux(verdaux_ftype *dst, const verdaux_mtype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
__store_u32L(dst->vda_name, src->vda_name);
__store_u32L(dst->vda_next, src->vda_next);
}
else {
__store_u32M(dst->vda_name, src->vda_name);
__store_u32M(dst->vda_next, src->vda_next);
}
}
static void
__store_verdef(verdef_ftype *dst, const verdef_mtype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
__store_u16L(dst->vd_version, src->vd_version);
__store_u16L(dst->vd_flags, src->vd_flags);
__store_u16L(dst->vd_ndx, src->vd_ndx);
__store_u16L(dst->vd_cnt, src->vd_cnt);
__store_u32L(dst->vd_hash, src->vd_hash);
__store_u32L(dst->vd_aux, src->vd_aux);
__store_u32L(dst->vd_next, src->vd_next);
}
else {
__store_u16M(dst->vd_version, src->vd_version);
__store_u16M(dst->vd_flags, src->vd_flags);
__store_u16M(dst->vd_ndx, src->vd_ndx);
__store_u16M(dst->vd_cnt, src->vd_cnt);
__store_u32M(dst->vd_hash, src->vd_hash);
__store_u32M(dst->vd_aux, src->vd_aux);
__store_u32M(dst->vd_next, src->vd_next);
}
}
typedef verdaux_mtype verdaux_stype;
typedef verdaux_ftype verdaux_dtype;
typedef verdef_mtype verdef_stype;
typedef verdef_ftype verdef_dtype;
typedef align_mtype verdef_atype;
#define copy_verdaux_srctotmp(d, s, e) (*(d) = *(s))
#define copy_verdaux_tmptodst(d, s, e) __store_verdaux((d), (s), (e))
#define copy_verdef_srctotmp(d, s, e) (*(d) = *(s))
#define copy_verdef_tmptodst(d, s, e) __store_verdef((d), (s), (e))
#define translator_suffix _tof
#else /* TOFILE */
static void
__load_verdaux(verdaux_mtype *dst, const verdaux_ftype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
dst->vda_name = __load_u32L(src->vda_name);
dst->vda_next = __load_u32L(src->vda_next);
}
else {
dst->vda_name = __load_u32M(src->vda_name);
dst->vda_next = __load_u32M(src->vda_next);
}
}
static void
__load_verdef(verdef_mtype *dst, const verdef_ftype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
dst->vd_version = __load_u16L(src->vd_version);
dst->vd_flags = __load_u16L(src->vd_flags);
dst->vd_ndx = __load_u16L(src->vd_ndx);
dst->vd_cnt = __load_u16L(src->vd_cnt);
dst->vd_hash = __load_u32L(src->vd_hash);
dst->vd_aux = __load_u32L(src->vd_aux);
dst->vd_next = __load_u32L(src->vd_next);
}
else {
dst->vd_version = __load_u16M(src->vd_version);
dst->vd_flags = __load_u16M(src->vd_flags);
dst->vd_ndx = __load_u16M(src->vd_ndx);
dst->vd_cnt = __load_u16M(src->vd_cnt);
dst->vd_hash = __load_u32M(src->vd_hash);
dst->vd_aux = __load_u32M(src->vd_aux);
dst->vd_next = __load_u32M(src->vd_next);
}
}
typedef verdaux_ftype verdaux_stype;
typedef verdaux_mtype verdaux_dtype;
typedef verdef_ftype verdef_stype;
typedef verdef_mtype verdef_dtype;
typedef align_ftype verdef_atype;
#define copy_verdaux_srctotmp(d, s, e) __load_verdaux((d), (s), (e))
#define copy_verdaux_tmptodst(d, s, e) (*(d) = *(s))
#define copy_verdef_srctotmp(d, s, e) __load_verdef((d), (s), (e))
#define copy_verdef_tmptodst(d, s, e) (*(d) = *(s))
#define translator_suffix _tom
#endif /* TOFILE */
#define cat3(a,b,c) a##b##c
#define xlt3(p,e,s) cat3(p,e,s)
#define xltprefix(x) xlt3(x,_,class_suffix)
#define translator(x,e) xlt3(xltprefix(_elf_##x),e,translator_suffix)
static size_t
xlt_verdef(unsigned char *dst, const unsigned char *src, size_t n, unsigned enc) {
size_t off;
if (sizeof(verdef_stype) != sizeof(verdef_dtype)
|| sizeof(verdaux_stype) != sizeof(verdaux_dtype)) {
/* never happens for ELF v1 and Verneed v1 */
seterr(ERROR_UNIMPLEMENTED);
return (size_t)-1;
}
/* size translation shortcut */
if (dst == NULL) {
return n;
}
if (src == NULL) {
seterr(ERROR_NULLBUF);
return (size_t)-1;
}
off = 0;
while (off + sizeof(verdef_stype) <= n) {
const verdef_stype *svd;
verdef_dtype *dvd;
verdef_mtype vd;
size_t acount;
size_t aoff;
/*
* check for proper alignment
*/
if (off % sizeof(verdef_atype)) {
seterr(ERROR_VERDEF_FORMAT);
return (size_t)-1;
}
/*
* copy and check src
*/
svd = (verdef_stype*)(src + off);
dvd = (verdef_dtype*)(dst + off);
copy_verdef_srctotmp(&vd, svd, enc);
if (vd.vd_version < 1
|| vd.vd_version > VER_DEF_CURRENT) {
seterr(ERROR_VERDEF_VERSION);
return (size_t)-1;
}
if (vd.vd_cnt < 1
|| vd.vd_aux == 0) {
seterr(ERROR_VERDEF_FORMAT);
return (size_t)-1;
}
copy_verdef_tmptodst(dvd, &vd, enc);
/*
* copy aux array
*/
aoff = off + vd.vd_aux;
for (acount = 0; acount < vd.vd_cnt; acount++) {
const verdaux_stype *svda;
verdaux_dtype *dvda;
verdaux_mtype vda;
/*
* are we still inside the buffer limits?
*/
if (aoff + sizeof(verdaux_stype) > n) {
break;
}
/*
* check for proper alignment
*/
if (aoff % sizeof(verdef_atype)) {
seterr(ERROR_VERDEF_FORMAT);
return (size_t)-1;
}
/*
* copy and check src
*/
svda = (verdaux_stype*)(src + aoff);
dvda = (verdaux_dtype*)(dst + aoff);
copy_verdaux_srctotmp(&vda, svda, enc);
copy_verdaux_tmptodst(dvda, &vda, enc);
/*
* advance to next verdaux
*/
if (vda.vda_next == 0) {
/* end of list */
break;
}
aoff += vda.vda_next;
}
/*
* advance to next verdef
*/
if (vd.vd_next == 0) {
/* end of list */
break;
}
off += vd.vd_next;
}
return n;
}
size_t
translator(verdef,L11)(unsigned char *dst, const unsigned char *src, size_t n) {
return xlt_verdef(dst, src, n, ELFDATA2LSB);
}
size_t
translator(verdef,M11)(unsigned char *dst, const unsigned char *src, size_t n) {
return xlt_verdef(dst, src, n, ELFDATA2MSB);
}

53
external/libelf/src/verdef_32_tof.c vendored Normal file
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@@ -0,0 +1,53 @@
/*
verdef_32_tof.c - copy 32-bit versioning information.
Copyright (C) 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#if __LIBELF_SYMBOL_VERSIONS
#ifndef lint
static const char rcsid[] = "@(#) $Id: verdef_32_tof.c,v 1.5 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
typedef Elf32_Verdaux verdaux_mtype;
typedef Elf32_Verdef verdef_mtype;
typedef Elf32_Vernaux vernaux_mtype;
typedef Elf32_Verneed verneed_mtype;
typedef Elf32_Word align_mtype;
typedef __ext_Elf32_Verdaux verdaux_ftype;
typedef __ext_Elf32_Verdef verdef_ftype;
typedef __ext_Elf32_Vernaux vernaux_ftype;
typedef __ext_Elf32_Verneed verneed_ftype;
typedef __ext_Elf32_Word align_ftype;
#define class_suffix 32
#undef TOFILE
#define TOFILE 1
/*
* Include shared code
*/
#include "verdef.h"
#include "verneed.h"
#endif /* __LIBELF_SYMBOL_VERSIONS */

53
external/libelf/src/verdef_32_tom.c vendored Normal file
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@@ -0,0 +1,53 @@
/*
verdef_32_tom.c - copy 32-bit versioning information.
Copyright (C) 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#if __LIBELF_SYMBOL_VERSIONS
#ifndef lint
static const char rcsid[] = "@(#) $Id: verdef_32_tom.c,v 1.5 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
typedef Elf32_Verdaux verdaux_mtype;
typedef Elf32_Verdef verdef_mtype;
typedef Elf32_Vernaux vernaux_mtype;
typedef Elf32_Verneed verneed_mtype;
typedef Elf32_Word align_mtype;
typedef __ext_Elf32_Verdaux verdaux_ftype;
typedef __ext_Elf32_Verdef verdef_ftype;
typedef __ext_Elf32_Vernaux vernaux_ftype;
typedef __ext_Elf32_Verneed verneed_ftype;
typedef __ext_Elf32_Word align_ftype;
#define class_suffix 32
#undef TOFILE
#define TOFILE 0
/*
* Include shared code
*/
#include "verdef.h"
#include "verneed.h"
#endif /* __LIBELF_SYMBOL_VERSIONS */

53
external/libelf/src/verdef_64_tof.c vendored Normal file
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@@ -0,0 +1,53 @@
/*
verdef_64_tof.c - copy 64-bit versioning information.
Copyright (C) 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#if __LIBELF64 && __LIBELF_SYMBOL_VERSIONS
#ifndef lint
static const char rcsid[] = "@(#) $Id: verdef_64_tof.c,v 1.5 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
typedef Elf64_Verdaux verdaux_mtype;
typedef Elf64_Verdef verdef_mtype;
typedef Elf64_Vernaux vernaux_mtype;
typedef Elf64_Verneed verneed_mtype;
typedef Elf64_Word align_mtype;
typedef __ext_Elf64_Verdaux verdaux_ftype;
typedef __ext_Elf64_Verdef verdef_ftype;
typedef __ext_Elf64_Vernaux vernaux_ftype;
typedef __ext_Elf64_Verneed verneed_ftype;
typedef __ext_Elf64_Word align_ftype;
#define class_suffix 64
#undef TOFILE
#define TOFILE 1
/*
* Include shared code
*/
#include "verdef.h"
#include "verneed.h"
#endif /* __LIBELF64 && __LIBELF_SYMBOL_VERSIONS */

53
external/libelf/src/verdef_64_tom.c vendored Normal file
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@@ -0,0 +1,53 @@
/*
verdef_64_tom.c - copy 64-bit versioning information.
Copyright (C) 2001 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#include <ext_types.h>
#include <byteswap.h>
#if __LIBELF64 && __LIBELF_SYMBOL_VERSIONS
#ifndef lint
static const char rcsid[] = "@(#) $Id: verdef_64_tom.c,v 1.5 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
typedef Elf64_Verdaux verdaux_mtype;
typedef Elf64_Verdef verdef_mtype;
typedef Elf64_Vernaux vernaux_mtype;
typedef Elf64_Verneed verneed_mtype;
typedef Elf64_Word align_mtype;
typedef __ext_Elf64_Verdaux verdaux_ftype;
typedef __ext_Elf64_Verdef verdef_ftype;
typedef __ext_Elf64_Vernaux vernaux_ftype;
typedef __ext_Elf64_Verneed verneed_ftype;
typedef __ext_Elf64_Word align_ftype;
#define class_suffix 64
#undef TOFILE
#define TOFILE 0
/*
* Include shared code
*/
#include "verdef.h"
#include "verneed.h"
#endif /* __LIBELF64 && __LIBELF_SYMBOL_VERSIONS */

245
external/libelf/src/verneed.h vendored Normal file
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/*
* verneed.h - copy versioning information.
* Copyright (C) 2001 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef lint
static const char verneed_h_rcsid[] = "@(#) $Id: verneed.h,v 1.13 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
#if VER_NEED_CURRENT != 1
#error libelf currently does not support VER_NEED_CURRENT != 1
#endif /* VER_NEED_CURRENT != 1 */
#if TOFILE
static void
__store_vernaux(vernaux_ftype *dst, const vernaux_mtype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
__store_u32L(dst->vna_hash, src->vna_hash);
__store_u16L(dst->vna_flags, src->vna_flags);
__store_u16L(dst->vna_other, src->vna_other);
__store_u32L(dst->vna_name, src->vna_name);
__store_u32L(dst->vna_next, src->vna_next);
}
else {
__store_u32M(dst->vna_hash, src->vna_hash);
__store_u16M(dst->vna_flags, src->vna_flags);
__store_u16M(dst->vna_other, src->vna_other);
__store_u32M(dst->vna_name, src->vna_name);
__store_u32M(dst->vna_next, src->vna_next);
}
}
static void
__store_verneed(verneed_ftype *dst, const verneed_mtype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
__store_u16L(dst->vn_version, src->vn_version);
__store_u16L(dst->vn_cnt, src->vn_cnt);
__store_u32L(dst->vn_file, src->vn_file);
__store_u32L(dst->vn_aux, src->vn_aux);
__store_u32L(dst->vn_next, src->vn_next);
}
else {
__store_u16M(dst->vn_version, src->vn_version);
__store_u16M(dst->vn_cnt, src->vn_cnt);
__store_u32M(dst->vn_file, src->vn_file);
__store_u32M(dst->vn_aux, src->vn_aux);
__store_u32M(dst->vn_next, src->vn_next);
}
}
typedef vernaux_mtype vernaux_stype;
typedef vernaux_ftype vernaux_dtype;
typedef verneed_mtype verneed_stype;
typedef verneed_ftype verneed_dtype;
typedef align_mtype verneed_atype;
#define copy_vernaux_srctotmp(d, s, e) (*(d) = *(s))
#define copy_vernaux_tmptodst(d, s, e) __store_vernaux((d), (s), (e))
#define copy_verneed_srctotmp(d, s, e) (*(d) = *(s))
#define copy_verneed_tmptodst(d, s, e) __store_verneed((d), (s), (e))
#define translator_suffix _tof
#else /* TOFILE */
static void
__load_vernaux(vernaux_mtype *dst, const vernaux_ftype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
dst->vna_hash = __load_u32L(src->vna_hash);
dst->vna_flags = __load_u16L(src->vna_flags);
dst->vna_other = __load_u16L(src->vna_other);
dst->vna_name = __load_u32L(src->vna_name);
dst->vna_next = __load_u32L(src->vna_next);
}
else {
dst->vna_hash = __load_u32M(src->vna_hash);
dst->vna_flags = __load_u16M(src->vna_flags);
dst->vna_other = __load_u16M(src->vna_other);
dst->vna_name = __load_u32M(src->vna_name);
dst->vna_next = __load_u32M(src->vna_next);
}
}
static void
__load_verneed(verneed_mtype *dst, const verneed_ftype *src, unsigned enc) {
if (enc == ELFDATA2LSB) {
dst->vn_version = __load_u16L(src->vn_version);
dst->vn_cnt = __load_u16L(src->vn_cnt);
dst->vn_file = __load_u32L(src->vn_file);
dst->vn_aux = __load_u32L(src->vn_aux);
dst->vn_next = __load_u32L(src->vn_next);
}
else {
dst->vn_version = __load_u16M(src->vn_version);
dst->vn_cnt = __load_u16M(src->vn_cnt);
dst->vn_file = __load_u32M(src->vn_file);
dst->vn_aux = __load_u32M(src->vn_aux);
dst->vn_next = __load_u32M(src->vn_next);
}
}
typedef vernaux_ftype vernaux_stype;
typedef vernaux_mtype vernaux_dtype;
typedef verneed_ftype verneed_stype;
typedef verneed_mtype verneed_dtype;
typedef align_ftype verneed_atype;
#define copy_vernaux_srctotmp(d, s, e) __load_vernaux((d), (s), (e))
#define copy_vernaux_tmptodst(d, s, e) (*(d) = *(s))
#define copy_verneed_srctotmp(d, s, e) __load_verneed((d), (s), (e))
#define copy_verneed_tmptodst(d, s, e) (*(d) = *(s))
#define translator_suffix _tom
#endif /* TOFILE */
#define cat3(a,b,c) a##b##c
#define xlt3(p,e,s) cat3(p,e,s)
#define xltprefix(x) xlt3(x,_,class_suffix)
#define translator(x,e) xlt3(xltprefix(_elf_##x),e,translator_suffix)
static size_t
xlt_verneed(unsigned char *dst, const unsigned char *src, size_t n, unsigned enc) {
size_t off;
if (sizeof(verneed_stype) != sizeof(verneed_dtype)
|| sizeof(vernaux_stype) != sizeof(vernaux_dtype)) {
/* never happens for ELF v1 and Verneed v1 */
seterr(ERROR_UNIMPLEMENTED);
return (size_t)-1;
}
/* size translation shortcut */
if (dst == NULL) {
return n;
}
if (src == NULL) {
seterr(ERROR_NULLBUF);
return (size_t)-1;
}
off = 0;
while (off + sizeof(verneed_stype) <= n) {
const verneed_stype *svn;
verneed_dtype *dvn;
verneed_mtype vn;
size_t acount;
size_t aoff;
/*
* check for proper alignment
*/
if (off % sizeof(verneed_atype)) {
seterr(ERROR_VERNEED_FORMAT);
return (size_t)-1;
}
/*
* copy and check src
*/
svn = (verneed_stype*)(src + off);
dvn = (verneed_dtype*)(dst + off);
copy_verneed_srctotmp(&vn, svn, enc);
if (vn.vn_version < 1
|| vn.vn_version > VER_NEED_CURRENT) {
seterr(ERROR_VERNEED_VERSION);
return (size_t)-1;
}
if (vn.vn_cnt < 1
|| vn.vn_aux == 0) {
seterr(ERROR_VERNEED_FORMAT);
return (size_t)-1;
}
copy_verneed_tmptodst(dvn, &vn, enc);
/*
* copy aux array
*/
aoff = off + vn.vn_aux;
for (acount = 0; acount < vn.vn_cnt; acount++) {
const vernaux_stype *svna;
vernaux_dtype *dvna;
vernaux_mtype vna;
/*
* are we still inside the buffer limits?
*/
if (aoff + sizeof(vernaux_stype) > n) {
break;
}
/*
* check for proper alignment
*/
if (aoff % sizeof(verneed_atype)) {
seterr(ERROR_VERNEED_FORMAT);
return (size_t)-1;
}
/*
* copy and check src
*/
svna = (vernaux_stype*)(src + aoff);
dvna = (vernaux_dtype*)(dst + aoff);
copy_vernaux_srctotmp(&vna, svna, enc);
copy_vernaux_tmptodst(dvna, &vna, enc);
/*
* advance to next vernaux
*/
if (vna.vna_next == 0) {
/* end of list */
break;
}
aoff += vna.vna_next;
}
/*
* advance to next verneed
*/
if (vn.vn_next == 0) {
/* end of list */
break;
}
off += vn.vn_next;
}
return n;
}
size_t
translator(verneed,L11)(unsigned char *dst, const unsigned char *src, size_t n) {
return xlt_verneed(dst, src, n, ELFDATA2LSB);
}
size_t
translator(verneed,M11)(unsigned char *dst, const unsigned char *src, size_t n) {
return xlt_verneed(dst, src, n, ELFDATA2MSB);
}

44
external/libelf/src/version.c vendored Normal file
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@@ -0,0 +1,44 @@
/*
* version.c - implementation of the elf_version(3) function.
* Copyright (C) 1995 - 1998, 2007 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: version.c,v 1.8 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
unsigned
elf_version(unsigned ver) {
const char *s;
unsigned tmp;
if ((s = getenv("LIBELF_SANITY_CHECKS"))) {
_elf_sanity_checks = (int)strtol(s, (char**)NULL, 0);
}
if (ver == EV_NONE) {
return EV_CURRENT;
}
if (!valid_version(ver)) {
seterr(ERROR_UNKNOWN_VERSION);
return EV_NONE;
}
tmp = _elf_version == EV_NONE ? EV_CURRENT : _elf_version;
_elf_version = ver;
return tmp;
}

190
external/libelf/src/x.elfext.c vendored Normal file
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/*
* x.elfext.c -- handle ELF format extensions
* Copyright (C) 2002 - 2006 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: x.elfext.c,v 1.5 2009/07/07 17:57:43 michael Exp $";
#endif /* lint */
int
elf_getphdrnum(Elf *elf, size_t *resultp) {
if (!elf) {
return -1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return -1;
}
if (!elf->e_ehdr && !_elf_cook(elf)) {
return -1;
}
if (resultp) {
*resultp = elf->e_phnum;
}
return 0;
}
int
elf_getshdrnum(Elf *elf, size_t *resultp) {
size_t num = 0;
Elf_Scn *scn;
if (!elf) {
return -1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return -1;
}
if (!elf->e_ehdr && !_elf_cook(elf)) {
return -1;
}
if ((scn = elf->e_scn_n)) {
num = scn->s_index + 1;
}
if (resultp) {
*resultp = num;
}
return 0;
}
int
elf_getshdrstrndx(Elf *elf, size_t *resultp) {
size_t num = 0;
size_t dummy;
Elf_Scn *scn;
if (!elf) {
return -1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (resultp == NULL) {
resultp = &dummy; /* handle NULL pointer gracefully */
}
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return -1;
}
if (!elf->e_ehdr && !_elf_cook(elf)) {
return -1;
}
if (elf->e_class == ELFCLASS32) {
num = ((Elf32_Ehdr*)elf->e_ehdr)->e_shstrndx;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
num = ((Elf64_Ehdr*)elf->e_ehdr)->e_shstrndx;
}
#endif /* __LIBELF64 */
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return -1;
}
if (num != SHN_XINDEX) {
*resultp = num;
return 0;
}
/*
* look at first section header
*/
if (!(scn = elf->e_scn_1)) {
seterr(ERROR_NOSUCHSCN);
return -1;
}
elf_assert(scn->s_magic == SCN_MAGIC);
#if __LIBELF64
if (elf->e_class == ELFCLASS64) {
*resultp = scn->s_shdr64.sh_link;
return 0;
}
#endif /* __LIBELF64 */
*resultp = scn->s_shdr32.sh_link;
return 0;
}
int
elf_getphnum(Elf *elf, size_t *resultp) {
return elf_getphdrnum(elf, resultp) ? LIBELF_FAILURE : LIBELF_SUCCESS;
}
int
elf_getshnum(Elf *elf, size_t *resultp) {
return elf_getshdrnum(elf, resultp) ? LIBELF_FAILURE : LIBELF_SUCCESS;
}
int
elf_getshstrndx(Elf *elf, size_t *resultp) {
return elf_getshdrstrndx(elf, resultp) ? LIBELF_FAILURE : LIBELF_SUCCESS;
}
int
elfx_update_shstrndx(Elf *elf, size_t value) {
size_t extvalue = 0;
Elf_Scn *scn;
if (!elf) {
return LIBELF_FAILURE;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (value >= SHN_LORESERVE) {
extvalue = value;
value = SHN_XINDEX;
}
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return LIBELF_FAILURE;
}
if (!elf->e_ehdr && !_elf_cook(elf)) {
return LIBELF_FAILURE;
}
if (!(scn = _elf_first_scn(elf))) {
return LIBELF_FAILURE;
}
elf_assert(scn->s_magic == SCN_MAGIC);
if (elf->e_class == ELFCLASS32) {
((Elf32_Ehdr*)elf->e_ehdr)->e_shstrndx = value;
scn->s_shdr32.sh_link = extvalue;
}
#if __LIBELF64
else if (elf->e_class == ELFCLASS64) {
((Elf64_Ehdr*)elf->e_ehdr)->e_shstrndx = value;
scn->s_shdr64.sh_link = extvalue;
}
#endif /* __LIBELF64 */
else {
if (valid_class(elf->e_class)) {
seterr(ERROR_UNIMPLEMENTED);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
return LIBELF_FAILURE;
}
elf->e_ehdr_flags |= ELF_F_DIRTY;
scn->s_shdr_flags |= ELF_F_DIRTY;
return LIBELF_SUCCESS;
}

112
external/libelf/src/x.movscn.c vendored Normal file
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@@ -0,0 +1,112 @@
/*
x.movscn.c - implementation of the elfx_movscn(3) function.
Copyright (C) 1995 - 2001, 2003 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: x.movscn.c,v 1.14 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
size_t
elfx_movscn(Elf *elf, Elf_Scn *scn, Elf_Scn *after) {
Elf_Scn *prev;
Elf_Scn *tmp;
int off;
if (!elf || !scn || !after) {
return SHN_UNDEF;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return SHN_UNDEF;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(after->s_magic == SCN_MAGIC);
if (scn->s_elf != elf || after->s_elf != elf) {
seterr(ERROR_ELFSCNMISMATCH);
return SHN_UNDEF;
}
elf_assert(elf->e_scn_1);
if (scn == elf->e_scn_1) {
seterr(ERROR_NULLSCN);
return SHN_UNDEF;
}
if (scn == after || scn == after->s_link) {
/* nothing to do */
return scn->s_index;
}
/*
* Find previous section.
*/
prev = NULL;
for (tmp = elf->e_scn_1; tmp->s_link; tmp = tmp->s_link) {
if (tmp->s_link == scn) {
prev = tmp;
break;
}
}
elf_assert(prev != NULL);
/*
* Update section indices
*/
off = 0;
for (tmp = elf->e_scn_1; tmp; tmp = tmp->s_link) {
if (off) {
tmp->s_index += off;
}
if (tmp == after) {
off++;
}
else if (tmp == scn) {
off--;
}
}
elf_assert(off == 0);
/*
* Move section.
*/
prev->s_link = scn->s_link;
scn->s_link = after->s_link;
after->s_link = scn;
scn->s_index = after->s_index + 1;
if (elf->e_scn_n == scn) {
elf->e_scn_n = prev;
}
else if (elf->e_scn_n == after) {
elf->e_scn_n = scn;
}
#if ENABLE_DEBUG
/*
* Check section indices
*/
tmp = elf->e_scn_1;
elf_assert(tmp->s_index == 0);
while (tmp->s_link) {
elf_assert(tmp->s_link->s_index == tmp->s_index + 1);
tmp = tmp->s_link;
}
#endif /* ENABLE_DEBUG */
return scn->s_index;
}

119
external/libelf/src/x.remscn.c vendored Normal file
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@@ -0,0 +1,119 @@
/*
x.remscn.c - implementation of the elfx_remscn(3) function.
Copyright (C) 1995 - 2001, 2003 Michael Riepe
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: x.remscn.c,v 1.15 2008/05/23 08:15:35 michael Exp $";
#endif /* lint */
size_t
elfx_remscn(Elf *elf, Elf_Scn *scn) {
Elf_Scn *pscn;
Scn_Data *sd;
Scn_Data *tmp;
size_t index;
if (!elf || !scn) {
return SHN_UNDEF;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
return SHN_UNDEF;
}
elf_assert(scn->s_magic == SCN_MAGIC);
elf_assert(elf->e_ehdr);
if (scn->s_elf != elf) {
seterr(ERROR_ELFSCNMISMATCH);
return SHN_UNDEF;
}
elf_assert(elf->e_scn_1);
if (scn == elf->e_scn_1) {
seterr(ERROR_NULLSCN);
return SHN_UNDEF;
}
/*
* Find previous section.
*/
for (pscn = elf->e_scn_1; pscn->s_link; pscn = pscn->s_link) {
if (pscn->s_link == scn) {
break;
}
}
if (pscn->s_link != scn) {
seterr(ERROR_ELFSCNMISMATCH);
return SHN_UNDEF;
}
/*
* Unlink section.
*/
if (elf->e_scn_n == scn) {
elf->e_scn_n = pscn;
}
pscn->s_link = scn->s_link;
index = scn->s_index;
/*
* Free section descriptor and data.
*/
for (sd = scn->s_data_1; sd; sd = tmp) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
tmp = sd->sd_link;
if (sd->sd_free_data && sd->sd_memdata) {
free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if ((sd = scn->s_rawdata)) {
elf_assert(sd->sd_magic == DATA_MAGIC);
elf_assert(sd->sd_scn == scn);
if (sd->sd_free_data && sd->sd_memdata) {
free(sd->sd_memdata);
}
if (sd->sd_freeme) {
free(sd);
}
}
if (scn->s_freeme) {
elf_assert(scn->s_index > 0);
free(scn);
}
/*
* Adjust section indices.
*/
for (scn = pscn->s_link; scn; scn = scn->s_link) {
elf_assert(scn->s_index > index);
scn->s_index--;
}
/*
* Adjust section count in ELF header
*/
if (_elf_update_shnum(elf, elf->e_scn_n->s_index + 1)) {
return SHN_UNDEF;
}
return index;
}