/* * avrdude - A Downloader/Uploader for AVR device programmers * Copyright (C) 2000-2004 Brian S. Dean * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ /* $Id$ */ #include "ac_cfg.h" #include #include #include #include #include #include #include #include "avrdude.h" #include "libavrdude.h" #include "config.h" #include "avrintel.h" #include "config_gram.h" const char *default_programmer; const char *default_parallel; const char *default_serial; const char *default_spi; double default_bitclock; LISTID string_list; LISTID number_list; PROGRAMMER * current_prog; AVRPART * current_part; AVRMEM * current_mem; int current_strct; LISTID part_list; LISTID programmers; bool is_alias; int cfg_lineno; char * cfg_infile; extern char * yytext; #define pgm_comp_desc(x, type) { #x, COMP_PROGRAMMER, offsetof(PROGRAMMER, x), sizeof(((PROGRAMMER *) NULL)->x), type } #define part_comp_desc(x, type) { #x, COMP_AVRPART, offsetof(AVRPART, x), sizeof(((AVRPART *) NULL)->x), type } #define mem_comp_desc(x, type) { #x, COMP_AVRMEM, offsetof(AVRMEM, x), sizeof(((AVRMEM *) NULL)->x), type } // Component description for config_gram.y, will be sorted appropriately on first use Component_t avr_comp[] = { // PROGRAMMER pgm_comp_desc(prog_modes, COMP_INT), // AVRPART part_comp_desc(prog_modes, COMP_INT), part_comp_desc(mcuid, COMP_INT), part_comp_desc(n_interrupts, COMP_INT), part_comp_desc(n_page_erase, COMP_INT), }; #define DEBUG 0 void cleanup_config(void) { ldestroy_cb(part_list, (void(*)(void*))avr_free_part); ldestroy_cb(programmers, (void(*)(void*))pgm_free); ldestroy_cb(string_list, (void(*)(void*))free_token); ldestroy_cb(number_list, (void(*)(void*))free_token); } int init_config(void) { string_list = lcreat(NULL, 0); number_list = lcreat(NULL, 0); current_prog = NULL; current_part = NULL; current_mem = NULL; part_list = lcreat(NULL, 0); programmers = lcreat(NULL, 0); is_alias = false; cfg_lineno = 1; cfg_infile = NULL; return 0; } void *cfg_malloc(const char *funcname, size_t n) { void *ret = malloc(n); if(!ret) { avrdude_message(MSG_INFO, "%s: out of memory in %s (needed %lu bytes)\n", progname, funcname, (unsigned long) n); exit(1); } memset(ret, 0, n); return ret; } void *cfg_realloc(const char *funcname, void *p, size_t n) { void *ret; if(!(ret = p? realloc(p, n): calloc(1, n))) { avrdude_message(MSG_INFO, "%s: out of memory in %s (needed %lu bytes)\n", progname, funcname, (unsigned long) n); exit(1); } return ret; } char *cfg_strdup(const char *funcname, const char *s) { char *ret = strdup(s); if(!ret) { avrdude_message(MSG_INFO, "%s: out of memory in %s\n", progname, funcname); exit(1); } return ret; } int yywrap() { return 1; } int yyerror(char * errmsg, ...) { va_list args; char message[512]; va_start(args, errmsg); vsnprintf(message, sizeof(message), errmsg, args); avrdude_message(MSG_INFO, "%s: error at %s:%d: %s\n", progname, cfg_infile, cfg_lineno, message); va_end(args); return 0; } int yywarning(char * errmsg, ...) { va_list args; char message[512]; va_start(args, errmsg); vsnprintf(message, sizeof(message), errmsg, args); avrdude_message(MSG_INFO, "%s: warning at %s:%d: %s\n", progname, cfg_infile, cfg_lineno, message); va_end(args); return 0; } TOKEN * new_token(int primary) { TOKEN * tkn = (TOKEN *) cfg_malloc("new_token()", sizeof(TOKEN)); tkn->primary = primary; return tkn; } void free_token(TOKEN * tkn) { if (tkn) { switch (tkn->value.type) { case V_STR: if (tkn->value.string) free(tkn->value.string); tkn->value.string = NULL; break; } free(tkn); } } void free_tokens(int n, ...) { TOKEN * t; va_list ap; va_start(ap, n); while (n--) { t = va_arg(ap, TOKEN *); free_token(t); } va_end(ap); } TOKEN *new_number(const char *text) { struct token_t *tkn = new_token(TKN_NUMBER); tkn->value.type = V_NUM; tkn->value.number = atoi(text); #if DEBUG avrdude_message(MSG_INFO, "NUMBER(%d)\n", tkn->value.number); #endif return tkn; } TOKEN *new_number_real(const char *text) { struct token_t * tkn = new_token(TKN_NUMBER); tkn->value.type = V_NUM_REAL; tkn->value.number_real = atof(text); #if DEBUG avrdude_message(MSG_INFO, "NUMBER(%g)\n", tkn->value.number_real); #endif return tkn; } TOKEN *new_hexnumber(const char *text) { struct token_t *tkn = new_token(TKN_NUMBER); char * e; tkn->value.type = V_NUM; tkn->value.number = strtoul(text, &e, 16); if ((e == text) || (*e != 0)) { yyerror("can't scan hex number \"%s\"", text); free_token(tkn); return NULL; } #if DEBUG avrdude_message(MSG_INFO, "HEXNUMBER(%g)\n", tkn->value.number); #endif return tkn; } TOKEN *new_constant(const char *con) { struct token_t *tkn = new_token(TKN_NUMBER); int assigned = 1; tkn->value.type = V_NUM; tkn->value.number = !strcmp("PM_SPM", con)? PM_SPM: !strcmp("PM_TPI", con)? PM_TPI: !strcmp("PM_ISP", con)? PM_ISP: !strcmp("PM_PDI", con)? PM_PDI: !strcmp("PM_UPDI", con)? PM_UPDI: !strcmp("PM_HVSP", con)? PM_HVSP: !strcmp("PM_HVPP", con)? PM_HVPP: !strcmp("PM_debugWIRE", con)? PM_debugWIRE: !strcmp("PM_JTAG", con)? PM_JTAG: !strcmp("PM_aWire", con)? PM_aWire: (assigned = 0); if(!assigned) { yyerror("can't identify constant %s", con); free_token(tkn); return NULL; } #if DEBUG avrdude_message(MSG_INFO, "CONSTANT(%s=%d)\n", con, tkn->value.number); #endif return tkn; } TOKEN *new_string(const char *text) { struct token_t *tkn = new_token(TKN_STRING); tkn->value.type = V_STR; tkn->value.string = cfg_strdup("new_string()", text); #if DEBUG avrdude_message(MSG_INFO, "STRING(%s)\n", tkn->value.string); #endif return tkn; } TOKEN *new_keyword(int primary) { return new_token(primary); } void print_token(TOKEN * tkn) { if (!tkn) return; avrdude_message(MSG_INFO, "token = %d = ", tkn->primary); switch (tkn->value.type) { case V_NUM: avrdude_message(MSG_INFO, "NUMBER, value=%d", tkn->value.number); break; case V_NUM_REAL: avrdude_message(MSG_INFO, "NUMBER, value=%g", tkn->value.number_real); break; case V_STR: avrdude_message(MSG_INFO, "STRING, value=%s", tkn->value.string); break; default: avrdude_message(MSG_INFO, ""); break; } avrdude_message(MSG_INFO, "\n"); } void pyytext(void) { #if DEBUG avrdude_message(MSG_INFO, "TOKEN: \"%s\"\n", yytext); #endif } #ifdef HAVE_YYLEX_DESTROY /* reset lexer and free any allocated memory */ extern int yylex_destroy(void); #endif int read_config(const char * file) { FILE * f; int r; if(!(cfg_infile = realpath(file, NULL))) { avrdude_message(MSG_INFO, "%s: can't determine realpath() of config file \"%s\": %s\n", progname, file, strerror(errno)); return -1; } f = fopen(cfg_infile, "r"); if (f == NULL) { avrdude_message(MSG_INFO, "%s: can't open config file \"%s\": %s\n", progname, cfg_infile, strerror(errno)); free(cfg_infile); cfg_infile = NULL; return -1; } cfg_lineno = 1; yyin = f; r = yyparse(); #ifdef HAVE_YYLEX_DESTROY /* reset lexer and free any allocated memory */ yylex_destroy(); #endif fclose(f); if(cfg_infile) { free(cfg_infile); cfg_infile = NULL; } return r; } // Adapted version of a neat empirical hash function from comp.lang.c by Daniel Bernstein unsigned strhash(const char *str) { unsigned c, hash = 5381, n = 0; while((c = (unsigned char) *str++) && n++ < 20) hash = 33*hash ^ c; return hash; } static char **hstrings[1<<12]; // Return a copy of the argument as hashed string const char *cache_string(const char *p) { int h, k; char **hs; if(!p) p = "(NULL)"; h = strhash(p) % (sizeof hstrings/sizeof*hstrings); if(!(hs=hstrings[h])) hs = hstrings[h] = (char **) cfg_realloc("cache_string()", NULL, (16+1)*sizeof**hstrings); for(k=0; hs[k]; k++) if(*p == *hs[k] && !strcmp(p, hs[k])) return hs[k]; if(k && k%16 == 0) hstrings[h] = (char **) cfg_realloc("cache_string()", hstrings[h], (k+16+1)*sizeof**hstrings); hstrings[h][k+1]=NULL; return hstrings[h][k] = cfg_strdup("cache_string()", p); } static LISTID cfg_comms; // A chain of comment lines static LISTID cfg_prologue; // Comment lines at start of avrdude.conf static char *lkw; // Last seen keyword static int lkw_lineno; // Line number of that static LISTID cfg_strctcomms; // Passed on to config_gram.y static LISTID cfg_pushedcomms; // Temporarily pushed main comments static int cfg_pushed; // ... for memory sections COMMENT *locate_comment(const LISTID comments, const char *where, int rhs) { if(comments) for(LNODEID ln=lfirst(comments); ln; ln=lnext(ln)) { COMMENT *n = ldata(ln); if(n && rhs == n->rhs && n->kw && strcmp(where, n->kw) == 0) return n; } return NULL; } static void addcomment(int rhs) { if(lkw) { COMMENT *node = cfg_malloc("addcomment()", sizeof(*node)); node->rhs = rhs; node->kw = cfg_strdup("addcomment()", lkw); node->comms = cfg_comms; cfg_comms = NULL; if(!cfg_strctcomms) cfg_strctcomms = lcreat(NULL, 0); ladd(cfg_strctcomms, node); } } // Capture prologue during parsing (triggered by lexer.l) void cfg_capture_prologue(void) { cfg_prologue = cfg_comms; cfg_comms = NULL; } LISTID cfg_get_prologue(void) { return cfg_prologue; } // Captures comments during parsing void capture_comment_str(const char *com, int lineno) { if(!cfg_comms) cfg_comms = lcreat(NULL, 0); ladd(cfg_comms, cfg_strdup("capture_comment_str()", com)); // Last keyword lineno is the same as this comment's if(lkw && lkw_lineno == lineno) addcomment(1); // Register comms to show right of lkw = ...; } // Capture assignments (keywords left of =) and associate comments to them void capture_lvalue_kw(const char *kw, int lineno) { if(!strcmp(kw, "memory")) { // Push part comments and start memory comments if(!cfg_pushed) { // config_gram.y pops the part comments cfg_pushed = 1; cfg_pushedcomms = cfg_strctcomms; cfg_strctcomms = NULL; } } if(!strcmp(kw, "programmer") || !strcmp(kw, "part") || !strcmp(kw, "memory")) kw = "*"; // Show comment before programmer/part/memory if(lkw) free(lkw); lkw = cfg_strdup("capture_lvalue_kw()", kw); lkw_lineno = lineno; if(cfg_comms) // Accrued list of # one-line comments addcomment(0); // Register comment to appear before lkw assignment } // config_gram.y calls this once for each programmer/part/memory structure LISTID cfg_move_comments(void) { capture_lvalue_kw(";", -1); LISTID ret = cfg_strctcomms; cfg_strctcomms = NULL; return ret; } // config_gram.y calls this after ingressing the memory structure void cfg_pop_comms(void) { if(cfg_pushed) { cfg_pushed = 0; cfg_strctcomms = cfg_pushedcomms; } } // Convert the next n hex digits of s to a hex number static unsigned int tohex(const unsigned char *s, unsigned int n) { int ret, c; ret = 0; while(n--) { ret *= 16; c = *s++; ret += c >= '0' && c <= '9'? c - '0': c >= 'a' && c <= 'f'? c - 'a' + 10: c - 'A' + 10; } return ret; } /* * Create a utf-8 character sequence from a single unicode character. * Permissive for some invalid unicode sequences but not for those with * high bit set). Returns numbers of characters written (0-6). */ static int wc_to_utf8str(unsigned int wc, unsigned char *str) { if(!(wc & ~0x7fu)) { *str = (char) wc; return 1; } if(!(wc & ~0x7ffu)) { *str++ = (char) ((wc >> 6) | 0xc0); *str++ = (char) ((wc & 0x3f) | 0x80); return 2; } if(!(wc & ~0xffffu)) { *str++ = (char) ((wc >> 12) | 0xe0); *str++ = (char) (((wc >> 6) & 0x3f) | 0x80); *str++ = (char) ((wc & 0x3f) | 0x80); return 3; } if(!(wc & ~0x1fffffu)) { *str++ = (char) ((wc >> 18) | 0xf0); *str++ = (char) (((wc >> 12) & 0x3f) | 0x80); *str++ = (char) (((wc >> 6) & 0x3f) | 0x80); *str++ = (char) ((wc & 0x3f) | 0x80); return 4; } if(!(wc & ~0x3ffffffu)) { *str++ = (char) ((wc >> 24) | 0xf8); *str++ = (char) (((wc >> 18) & 0x3f) | 0x80); *str++ = (char) (((wc >> 12) & 0x3f) | 0x80); *str++ = (char) (((wc >> 6) & 0x3f) | 0x80); *str++ = (char) ((wc & 0x3f) | 0x80); return 5; } if(!(wc & ~0x7fffffffu)) { *str++ = (char) ((wc >> 30) | 0xfc); *str++ = (char) (((wc >> 24) & 0x3f) | 0x80); *str++ = (char) (((wc >> 18) & 0x3f) | 0x80); *str++ = (char) (((wc >> 12) & 0x3f) | 0x80); *str++ = (char) (((wc >> 6) & 0x3f) | 0x80); *str++ = (char) ((wc & 0x3f) | 0x80); return 6; } return 0; } // Unescape C-style strings, destination d must hold enough space (and can be source s) unsigned char *cfg_unescapeu(unsigned char *d, const unsigned char *s) { unsigned char *ret = d; int n, k; while(*s) { switch (*s) { case '\\': switch (*++s) { case '\n': // String continuation over new line #if '\n' != '\r' case '\r': #endif --d; break; case 'n': *d = '\n'; break; case 't': *d = '\t'; break; case 'a': *d = '\a'; break; case 'b': *d = '\b'; break; case 'e': // Non-standard ESC *d = 27; break; case 'f': *d = '\f'; break; case 'r': *d = '\r'; break; case 'v': *d = '\v'; break; case '?': *d = '?'; break; case '`': *d = '`'; break; case '"': *d = '"'; break; case '\'': *d = '\''; break; case '\\': *d = '\\'; break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': // 1-3 octal digits n = *s - '0'; for(k = 0; k < 2 && s[1] >= '0' && s[1] <= '7'; k++) // Max 2 more octal characters n *= 8, n += s[1] - '0', s++; *d = n; break; case 'x': // Unlimited hex digits for(k = 0; isxdigit(s[k + 1]); k++) continue; if(k > 0) { *d = tohex(s + 1, k); s += k; } else { // No hex digits after \x? copy \x *d++ = '\\'; *d = 'x'; } break; case 'u': // Exactly 4 hex digits and valid unicode if(isxdigit(s[1]) && isxdigit(s[2]) && isxdigit(s[3]) && isxdigit(s[4]) && (n = wc_to_utf8str(tohex(s+1, 4), d))) { d += n - 1; s += 4; } else { // Invalid \u sequence? copy \u *d++ = '\\'; *d = 'u'; } break; case 'U': // Exactly 6 hex digits and valid unicode if(isxdigit(s[1]) && isxdigit(s[2]) && isxdigit(s[3]) && isxdigit(s[4]) && isxdigit(s[5]) && isxdigit(s[6]) && (n = wc_to_utf8str(tohex(s+1, 6), d))) { d += n - 1; s += 6; } else { // Invalid \U sequence? copy \U *d++ = '\\'; *d = 'U'; } break; default: // Keep the escape sequence (C would warn and remove \) *d++ = '\\'; *d = *s; } break; default: // Not an escape sequence: just copy the character *d = *s; } d++; s++; } *d = *s; // Terminate return ret; } // Unescape C-style strings, destination d must hold enough space (and can be source s) char *cfg_unescape(char *d, const char *s) { return (char *) cfg_unescapeu((unsigned char *) d, (const unsigned char *) s); } // Return an escaped string that looks like a C-style input string incl quotes, memory is malloc'd char *cfg_escape(const char *s) { char buf[50*1024], *d = buf; *d++ = '"'; for(; *s && d-buf < sizeof buf-7; s++) { switch(*s) { case '\n': *d++ = '\\'; *d++ = 'n'; break; case '\t': *d++ = '\\'; *d++ = 't'; break; case '\a': *d++ = '\\'; *d++ = 'a'; break; case '\b': *d++ = '\\'; *d++ = 'b'; break; case '\f': *d++ = '\\'; *d++ = 'f'; break; #if '\r' != '\n' case '\r': *d++ = '\\'; *d++ = 'r'; break; #endif case '\v': *d++ = '\\'; *d++ = 'v'; break; case '\"': *d++ = '\\'; *d++ = '\"'; break; default: if(*s == 0x7f || (*s >= 0 && *s < 32)) { sprintf(d, "\\%03o", *s); d += strlen(d); } else *d++ = *s; } } *d++ = '"'; *d = 0; return cfg_strdup("cfg_escape()", buf); } static int cmp_comp(const void *v1, const void *v2) { const Component_t *c1 = v1, *c2 = v2; int ret = strcmp(c1->name, c2->name); return ret? ret: c1->strct - c2->strct; } Component_t *cfg_comp_search(const char *name, int strct) { static int init; Component_t key; if(!init++) qsort(avr_comp, sizeof avr_comp/sizeof*avr_comp, sizeof(Component_t), cmp_comp); key.name = name; key.strct = strct; return bsearch(&key, avr_comp, sizeof avr_comp/sizeof*avr_comp, sizeof(Component_t), cmp_comp); } const char *cfg_strct_name(int strct) { switch(strct) { case COMP_CONFIG_MAIN: return "avrdude.conf main"; case COMP_AVRPART: return "AVRPART"; case COMP_AVRMEM: return "AVRMEM"; case COMP_PROGRAMMER: return "PROGRAMMER"; } return "unknown struct"; } const char *cfg_v_type(int type) { switch(type) { case V_NONE: return "void"; case V_NUM: return "number"; case V_NUM_REAL: return "real"; case V_STR: return "string"; case V_COMPONENT: return "component"; } return "unknown v type"; } const char *cfg_comp_type(int type) { switch(type) { case COMP_INT: return "number"; case COMP_SHORT: return "short"; case COMP_CHAR: return "char"; case COMP_STRING: return "string"; case COMP_CHAR_ARRAY: return "byte array"; case COMP_INT_LISTID: return "number list"; case COMP_STRING_LISTID: return "string list"; case COMP_OPCODE: return "opcode"; case COMP_PIN: return "pin"; case COMP_PIN_LIST: return "pin list"; } return "unknown comp type"; } // Used by config_gram.y to assign a component in one of the relevant structures with a value void cfg_assign(char *sp, int strct, Component_t *cp, VALUE *v) { const char *str; int num; switch(cp->type) { case COMP_CHAR: case COMP_SHORT: case COMP_INT: if(v->type != V_NUM) { yywarning("%s in %s expects a %s but is assigned a %s", cp->name, cfg_strct_name(strct), cfg_comp_type(cp->type), cfg_v_type(v->type)); return; } // TODO: consider endianess (code currently assumes little endian) num = v->number; memcpy(sp+cp->offset, &num, cp->size); break; case COMP_STRING: if(v->type != V_STR) { yywarning("%s in %s expects a string but is assigned a %s", cp->name, cfg_strct_name(strct), cfg_v_type(v->type)); return; } str = cache_string(v->string); memcpy(sp+cp->offset, &str, cp->size); break; // TODO: implement COMP_CHAR_ARRAY, COMP_INT_LISTID, COMP_STRING_LISTID, ... default: yywarning("%s in %s expects a %s but that is not implemented", cp->name, cfg_strct_name(strct), cfg_comp_type(cp->type)); } } // Automatically assign an mcuid if known from avrintel.c table void cfg_update_mcuid(AVRPART *part) { // Don't assign an mcuid for template parts that has a space in desc if(!part->desc || *part->desc == 0 || strchr(part->desc, ' ')) return; // Don't assign an mcuid for template parts where id starts with "." if(!part->id || !*part->id || *part->id == '.') return; // Don't assign an mcuid for 32-bit AVR parts if(part->prog_modes & PM_aWire) return; // Find an entry that shares the same name, overwrite mcuid with known, existing mcuid for(int i=0; i < sizeof uP_table/sizeof *uP_table; i++) { if(strcasecmp(part->desc, uP_table[i].name) == 0) { if(part->mcuid != (int) uP_table[i].mcuid) { if(part->mcuid >= 0) yywarning("overwriting mcuid of part %s to be %d", part->desc, uP_table[i].mcuid); part->mcuid = uP_table[i].mcuid; } return; } } // None have the same name: an entry with part->mcuid might be an error for(int i=0; i < sizeof uP_table/sizeof *uP_table; i++) if(part->mcuid == (int) uP_table[i].mcuid) { // Complain unless it can be considered a variant, eg, ATmega32L and ATmega32 AVRMEM *flash = avr_locate_mem(part, "flash"); if(flash) { size_t l1 = strlen(part->desc), l2 = strlen(uP_table[i].name); if(strncasecmp(part->desc, uP_table[i].name, l1 < l2? l1: l2) || flash->size != uP_table[i].flashsize || flash->page_size != uP_table[i].pagesize || part->n_interrupts != uP_table[i].ninterrupts) yywarning("mcuid %d is reserved for %s, use a free number >= %d", part->mcuid, uP_table[i].name, sizeof uP_table/sizeof *uP_table); } return; } // Range check if(part->mcuid < 0 || part->mcuid >= UB_N_MCU) yywarning("mcuid %d for %s is out of range [0..%d], use a free number >= %d", part->mcuid, part->desc, UB_N_MCU-1, sizeof uP_table/sizeof *uP_table); }