Rev 8786 | Rev 9545 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
145 | halyavin | 1 | /* |
2 | * TCCMEOS.C - KolibriOS/MenuetOS file output for the TinyC Compiler |
||
6441 | siemargl | 3 | * |
145 | halyavin | 4 | * Copyright (c) 2006 Andrey Khalyavin |
9284 | Coldy | 5 | * Copyright (c) 2021 Coldy (KX extension) |
145 | halyavin | 6 | * |
7 | * This library is free software; you can redistribute it and/or |
||
8 | * modify it under the terms of the GNU Lesser General Public |
||
9 | * License as published by the Free Software Foundation; either |
||
10 | * version 2 of the License, or (at your option) any later version. |
||
11 | * |
||
12 | * This library is distributed in the hope that it will be useful, |
||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
||
15 | * Lesser General Public License for more details. |
||
16 | * |
||
17 | * You should have received a copy of the GNU Lesser General Public |
||
18 | * License along with this library; if not, write to the Free Software |
||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
||
609 | andrew_pro | 20 | */ |
21 | |||
9284 | Coldy | 22 | #ifndef TCC_TARGET_KX |
8786 | turbocat | 23 | int undef_sym_flag=0; |
9284 | Coldy | 24 | #endif |
8786 | turbocat | 25 | |
609 | andrew_pro | 26 | typedef struct { |
27 | char magic[8]; |
||
28 | int version; |
||
29 | int entry_point; |
||
30 | int image_size; |
||
31 | int memory_size; |
||
32 | int stack; |
||
33 | int params; |
||
34 | int argv; |
||
35 | } IMAGE_MEOS_FILE_HEADER,*PIMAGE_MEOS_FILE_HEADER; |
||
36 | typedef struct _meos_section_info{ |
||
37 | int sh_addr; |
||
38 | void* data; |
||
39 | int data_size; |
||
40 | int sec_num; |
||
41 | struct _meos_section_info* next; |
||
42 | } meos_section_info; |
||
9284 | Coldy | 43 | #ifdef TCC_TARGET_KX |
609 | andrew_pro | 44 | typedef struct { |
9284 | Coldy | 45 | void* data; |
46 | int data_size; |
||
47 | } kx_import_table; |
||
48 | #endif |
||
49 | typedef struct { |
||
609 | andrew_pro | 50 | TCCState* s1; |
51 | IMAGE_MEOS_FILE_HEADER header; |
||
52 | meos_section_info* code_sections; |
||
53 | meos_section_info* data_sections; |
||
9284 | Coldy | 54 | #ifdef TCC_TARGET_KX |
55 | kx_import_table* imp_table; |
||
56 | #endif |
||
609 | andrew_pro | 57 | meos_section_info* bss_sections; |
58 | } me_info; |
||
59 | |||
9284 | Coldy | 60 | #ifdef TCC_TARGET_KX |
61 | void kx_init(me_info* me); |
||
62 | void kx_build_imports(me_info* me); |
||
63 | long kx_get_header_length(me_info* me); |
||
64 | void kx_write_header(me_info* me, FILE* f); |
||
65 | void kx_write_imports(me_info* me, FILE* f); |
||
66 | void kx_free(me_info* me); |
||
67 | #endif |
||
68 | |||
6441 | siemargl | 69 | int tcc_output_dbgme(const char *filename, me_info* me); |
70 | |||
71 | |||
609 | andrew_pro | 72 | meos_section_info* findsection(me_info* me,int num) |
73 | { |
||
74 | meos_section_info* si; |
||
75 | for(si=me->code_sections;si;si=si->next) |
||
76 | { |
||
77 | if (si->sec_num==num) |
||
78 | return si; |
||
79 | } |
||
80 | for (si=me->data_sections;si;si=si->next) |
||
81 | { |
||
82 | if (si->sec_num==num) |
||
83 | return si; |
||
84 | } |
||
85 | for (si=me->bss_sections;si;si=si->next) |
||
86 | { |
||
87 | if (si->sec_num==num) |
||
88 | return si; |
||
89 | } |
||
90 | return (meos_section_info*)0; |
||
91 | } |
||
92 | |||
93 | void build_reloc(me_info* me) |
||
94 | { |
||
95 | int flag; |
||
6441 | siemargl | 96 | Elf32_Rel *rel = 0, *rel_ = 0, *rel_end = 0; |
609 | andrew_pro | 97 | Section *sr; |
98 | meos_section_info* s; |
||
99 | meos_section_info* ss; |
||
100 | s=me->code_sections; |
||
101 | rel=0; |
||
102 | rel_end=0; |
||
103 | flag=0; |
||
104 | for(;;) |
||
105 | { |
||
106 | sr=me->s1->sections[s->sec_num]->reloc; |
||
107 | if (sr) |
||
108 | { |
||
145 | halyavin | 109 | rel = (Elf32_Rel *) sr->data; |
609 | andrew_pro | 110 | rel_end = (Elf32_Rel *) (sr->data + sr->data_offset); |
111 | } |
||
112 | rel_=rel; |
||
113 | while (rel_ |
||
114 | rel=rel_; |
||
115 | int type = ELF32_R_TYPE(rel->r_info); |
||
116 | rel_=rel+1; |
||
145 | halyavin | 117 | if (type != R_386_PC32 && type != R_386_32) |
609 | andrew_pro | 118 | continue; |
119 | int sym = ELF32_R_SYM(rel->r_info); |
||
120 | if (sym>symtab_section->data_offset/sizeof(Elf32_Sym)) |
||
121 | continue; |
||
122 | Elf32_Sym* esym = ((Elf32_Sym *)symtab_section->data)+sym; |
||
123 | int sect=esym->st_shndx; |
||
9284 | Coldy | 124 | int sh_addr; |
609 | andrew_pro | 125 | ss=findsection(me,sect); |
6441 | siemargl | 126 | if (ss==0) |
6429 | siemargl | 127 | { |
9284 | Coldy | 128 | const char *sym_name = strtab_section->data + esym->st_name; |
129 | #ifdef TCC_TARGET_KX |
||
130 | int sym_index = find_elf_sym(me->s1->dynsymtab_section, sym_name); |
||
131 | Elf32_Sym* dyn_sym; |
||
132 | if (sym_index == 0) { |
||
133 | #else |
||
8786 | turbocat | 134 | undef_sym_flag=1; |
9284 | Coldy | 135 | #endif |
136 | tcc_error_noabort("undefined symbol '%s'", sym_name); |
||
6429 | siemargl | 137 | continue; |
9284 | Coldy | 138 | #ifdef TCC_TARGET_KX |
6429 | siemargl | 139 | } |
9284 | Coldy | 140 | dyn_sym = &((ElfW(Sym) *)me->s1->dynsymtab_section->data)[sym_index]; |
141 | sh_addr = dyn_sym->st_value; |
||
142 | if (sh_addr == 0) { |
||
143 | tcc_error_noabort("symbol '%s' has zero value", sym_name); |
||
144 | continue; |
||
145 | } |
||
146 | #endif |
||
147 | } |
||
148 | else |
||
149 | sh_addr = ss->sh_addr; |
||
609 | andrew_pro | 150 | if (rel->r_offset>s->data_size) |
151 | continue; |
||
152 | if (type==R_386_PC32) |
||
9284 | Coldy | 153 | *(int*)(rel->r_offset+s->data)+=/*ss->*/sh_addr+esym->st_value-rel->r_offset-s->sh_addr; |
609 | andrew_pro | 154 | else if (type==R_386_32) |
9284 | Coldy | 155 | *(int*)(rel->r_offset+s->data)+=/*ss->*/sh_addr+esym->st_value; |
609 | andrew_pro | 156 | } |
157 | rel=rel_; |
||
158 | s=s->next; |
||
6441 | siemargl | 159 | if (s==0) // what about multiple BSS sections ? |
609 | andrew_pro | 160 | { |
161 | if (flag) break; |
||
162 | s=me->data_sections; |
||
163 | if (s==0) break; |
||
164 | flag=1; |
||
165 | continue; |
||
166 | } |
||
167 | } |
||
168 | } |
||
169 | |||
170 | void assign_addresses(me_info* me) |
||
171 | { |
||
172 | int i; |
||
173 | meos_section_info* si; |
||
174 | for (i=1;i |
||
175 | { |
||
176 | Section* s=me->s1->sections[i]; |
||
177 | if (strcmp(".text",s->name)==0) |
||
178 | { |
||
179 | si=tcc_malloc(sizeof(meos_section_info)); |
||
180 | si->data=s->data; |
||
181 | si->data_size=s->data_offset; |
||
182 | si->next=me->code_sections; |
||
183 | si->sec_num=i; |
||
184 | me->code_sections=si; |
||
185 | continue; |
||
186 | } |
||
187 | if (strcmp(".data",s->name)==0) |
||
188 | { |
||
189 | si=tcc_malloc(sizeof(meos_section_info)); |
||
190 | si->data=s->data; |
||
191 | si->data_size=s->data_offset; |
||
192 | si->next=me->data_sections; |
||
193 | si->sec_num=i; |
||
194 | me->data_sections=si; |
||
195 | continue; |
||
196 | } |
||
197 | if (strcmp(".bss",s->name)==0) |
||
198 | { |
||
199 | si=tcc_malloc(sizeof(meos_section_info)); |
||
6441 | siemargl | 200 | si->data=s->data; |
609 | andrew_pro | 201 | si->data_size=s->data_offset; |
202 | si->next=me->bss_sections; |
||
203 | si->sec_num=i; |
||
204 | me->bss_sections=si; |
||
205 | continue; |
||
206 | } |
||
207 | } |
||
208 | int addr; |
||
209 | addr=sizeof(IMAGE_MEOS_FILE_HEADER); |
||
9284 | Coldy | 210 | #ifdef TCC_TARGET_KX |
211 | addr += kx_get_header_length(me); |
||
212 | #endif |
||
609 | andrew_pro | 213 | for (si=me->code_sections;si;si=si->next) |
214 | { |
||
215 | si->sh_addr=addr; |
||
216 | addr+=si->data_size; |
||
217 | } |
||
218 | for (si=me->data_sections;si;si=si->next) |
||
219 | { |
||
220 | si->sh_addr=addr; |
||
221 | addr+=si->data_size; |
||
222 | } |
||
223 | me->header.image_size=addr; |
||
9284 | Coldy | 224 | #ifdef TCC_TARGET_KX |
225 | kx_build_imports(me); |
||
226 | addr = me->header.image_size; |
||
227 | #endif |
||
609 | andrew_pro | 228 | for (si=me->bss_sections;si;si=si->next) |
229 | { |
||
230 | si->sh_addr=addr; |
||
231 | addr+=si->data_size; |
||
8157 | Boppan | 232 | } |
6441 | siemargl | 233 | if (me->s1->pe_stack_size < 4096) |
8157 | Boppan | 234 | addr+=4096; |
6441 | siemargl | 235 | else |
8157 | Boppan | 236 | addr += me->s1->pe_stack_size; |
609 | andrew_pro | 237 | addr=(addr+4)&(~3); |
238 | me->header.stack=addr; |
||
239 | me->header.memory_size=addr; |
||
240 | build_reloc(me); |
||
241 | } |
||
6429 | siemargl | 242 | |
243 | |||
6441 | siemargl | 244 | const char *tcc_get_symbol_name(int st_name) |
6429 | siemargl | 245 | // return string by index from stringtable section |
246 | { |
||
247 | const char *sym_name = strtab_section->data + st_name; |
||
248 | return sym_name; |
||
249 | } |
||
250 | |||
609 | andrew_pro | 251 | int tcc_find_symbol_me(me_info* me, const char *sym_name) |
252 | { |
||
253 | int i; |
||
254 | int symtab; |
||
255 | int strtab; |
||
256 | symtab=0; |
||
257 | strtab=0; |
||
258 | for (i=1;i |
||
259 | { |
||
260 | Section* s; |
||
261 | s=me->s1->sections[i]; |
||
262 | if (strcmp(s->name,".symtab")==0) |
||
263 | { |
||
264 | symtab=i; |
||
265 | } |
||
266 | if (strcmp(s->name,".strtab")==0) |
||
267 | { |
||
268 | strtab=i; |
||
269 | } |
||
270 | } |
||
271 | if (symtab==0 || strtab==0) |
||
6429 | siemargl | 272 | { |
273 | tcc_error_noabort("undefined sections .symtab or .strtab on linking '%s'", sym_name); |
||
609 | andrew_pro | 274 | return 0; |
6429 | siemargl | 275 | } |
609 | andrew_pro | 276 | Elf32_Sym* s,*se; |
277 | char* name; |
||
278 | s=(Elf32_Sym*)me->s1->sections[symtab]->data; |
||
279 | se=(Elf32_Sym*)(((void*)s)+me->s1->sections[symtab]->data_offset); |
||
280 | name=(char*)me->s1->sections[strtab]->data; |
||
281 | while (s |
||
282 | { |
||
283 | if (strcmp(name+s->st_name,sym_name)==0) |
||
284 | { |
||
285 | return s->st_value+findsection(me,s->st_shndx)->sh_addr; |
||
286 | } |
||
287 | s++; |
||
288 | } |
||
6429 | siemargl | 289 | tcc_error_noabort("undefined symbol '%s'", sym_name); |
609 | andrew_pro | 290 | return 0; |
291 | } |
||
6429 | siemargl | 292 | |
609 | andrew_pro | 293 | const char* me_magic="MENUET01"; |
294 | int tcc_output_me(TCCState* s1,const char *filename) |
||
295 | { |
||
296 | me_info me; |
||
297 | int i; |
||
298 | FILE* f; |
||
299 | //printf("%d\n",s1->nb_sections); |
||
300 | memset(&me,0,sizeof(me)); |
||
301 | me.s1=s1; |
||
9284 | Coldy | 302 | #ifdef TCC_TARGET_KX |
303 | kx_init(&me); |
||
304 | #endif |
||
609 | andrew_pro | 305 | relocate_common_syms(); |
306 | assign_addresses(&me); |
||
9284 | Coldy | 307 | #ifndef TCC_TARGET_KX |
8786 | turbocat | 308 | if(undef_sym_flag){ |
309 | tcc_error("Linker error!"); |
||
310 | } |
||
9284 | Coldy | 311 | #endif |
8786 | turbocat | 312 | |
6441 | siemargl | 313 | if (s1->do_debug) |
314 | tcc_output_dbgme(filename, &me); |
||
315 | |||
609 | andrew_pro | 316 | me.header.entry_point=tcc_find_symbol_me(&me,"start"); |
317 | me.header.params= tcc_find_symbol_me(&me,"__argv"); // <-- |
||
318 | me.header.argv= tcc_find_symbol_me(&me,"__path"); // <-- |
||
6441 | siemargl | 319 | |
8716 | turbocat | 320 | if((f=fopen(filename,"wb"))==NULL){ |
321 | tcc_error("could not create '%s': %s", filename, strerror(errno)); |
||
322 | } |
||
323 | |||
609 | andrew_pro | 324 | for (i=0;i<8;i++) |
325 | me.header.magic[i]=me_magic[i]; |
||
326 | fwrite(&me.header,1,sizeof(IMAGE_MEOS_FILE_HEADER),f); |
||
9284 | Coldy | 327 | #ifdef TCC_TARGET_KX |
328 | kx_write_header(&me, f); |
||
329 | #endif |
||
609 | andrew_pro | 330 | meos_section_info* si; |
331 | for(si=me.code_sections;si;si=si->next) |
||
332 | fwrite(si->data,1,si->data_size,f); |
||
333 | for (si=me.data_sections;si;si=si->next) |
||
8157 | Boppan | 334 | fwrite(si->data,1,si->data_size,f); |
9284 | Coldy | 335 | #ifdef TCC_TARGET_KX |
336 | kx_write_imports(&me, f); |
||
337 | kx_free(&me); |
||
338 | #else |
||
8157 | Boppan | 339 | if (!s1->nobss) |
6858 | siemargl | 340 | { |
8157 | Boppan | 341 | for (si=me.bss_sections;si;si=si->next) |
6858 | siemargl | 342 | { |
8157 | Boppan | 343 | if (si->data == NULL) |
344 | { |
||
345 | // printf("\nError! BSS data is NULL! size:%i",(int)si->data_size); |
||
346 | si->data = calloc(si->data_size, 1); |
||
347 | } |
||
348 | fwrite(si->data, 1, si->data_size, f); |
||
349 | } |
||
350 | } |
||
351 | /* |
||
352 | if (me.bss_sections) // Siemargl testin, what we lose |
||
353 | { |
||
6441 | siemargl | 354 | tcc_error_noabort("We lose .BSS section when linking KOS32 executable"); |
8157 | Boppan | 355 | } |
6441 | siemargl | 356 | */ |
9284 | Coldy | 357 | #endif |
609 | andrew_pro | 358 | fclose(f); |
359 | return 0; |
||
360 | } |
||
6429 | siemargl | 361 | |
8677 | turbocat | 362 | #if !defined(_WIN32) && !defined(TCC_TARGET_MEOS_LINUX) |
6429 | siemargl | 363 | |
364 | static inline int get_current_folder(char* buf, int bufsize){ |
||
365 | register int val; |
||
366 | asm volatile ("int $0x40":"=a"(val):"a"(30), "b"(2), "c"(buf), "d"(bufsize)); |
||
367 | return val; |
||
368 | } |
||
369 | |||
8678 | turbocat | 370 | |
6429 | siemargl | 371 | char *getcwd(char *buf, size_t size) |
372 | { |
||
373 | int rc = get_current_folder(buf, size); |
||
374 | if (rc > size) |
||
375 | { |
||
376 | errno = ERANGE; |
||
377 | return 0; |
||
378 | } |
||
379 | else |
||
380 | return buf; |
||
381 | } |
||
382 | |||
383 | #endif |
||
8157 | Boppan | 384 | |
385 | |||
386 | static FILE *src_file; |
||
387 | static int next_src_line; |
||
388 | |||
389 | void close_source_file() |
||
390 | { |
||
391 | if (src_file) |
||
392 | fclose(src_file); |
||
393 | src_file = NULL; |
||
394 | } |
||
395 | |||
396 | void load_source_file(char *fname) |
||
397 | { |
||
398 | close_source_file(); |
||
6441 | siemargl | 399 | src_file = fopen(fname,"rt"); |
8157 | Boppan | 400 | if (!src_file) return; |
401 | next_src_line = 1; |
||
402 | } |
||
6441 | siemargl | 403 | |
8157 | Boppan | 404 | int get_src_lines(char *buf, int sz, int start, int end) |
405 | // 1 if read |
||
406 | { |
||
407 | char line[255], *ch; |
||
408 | strcpy(buf, ""); |
||
409 | if (!src_file) return 0; |
||
410 | while (next_src_line < start) // skip |
||
411 | { |
||
412 | ch = fgets(line, sizeof line, src_file); |
||
413 | if (!ch) return 0; |
||
414 | next_src_line++; |
||
415 | } |
||
416 | while (next_src_line <= end) |
||
417 | { |
||
418 | ch = fgets(line, sizeof line, src_file); |
||
419 | if (!ch) return 0; |
||
420 | next_src_line++; |
||
421 | strncat(buf, line, sz - strlen(buf) - 1); |
||
422 | } |
||
423 | // remove newlines |
||
424 | for (ch = buf; *ch; ch++) |
||
425 | if (strchr("\t\n\r", *ch)) *ch = ' '; |
||
426 | |||
427 | return 1; |
||
428 | } |
||
429 | |||
6441 | siemargl | 430 | int tcc_output_dbgme(const char *filename, me_info* me) |
431 | // by Siemargl. Writes filename.dbg file for source code level debuggin with MTDBG |
||
432 | // return 1 on error |
||
433 | { |
||
434 | FILE *fdbg; |
||
8157 | Boppan | 435 | char fname[400], |
436 | buf[80]; // no more fits in mtdbg string |
||
6441 | siemargl | 437 | |
438 | strcpy(fname, filename); |
||
439 | strcat(fname, ".dbg"); |
||
440 | fdbg = fopen(fname,"wt"); |
||
441 | if (!fdbg) return 1; |
||
442 | |||
8157 | Boppan | 443 | meos_section_info *si, *ss; |
444 | fputs(".text\n", fdbg); // just for mtbg |
||
445 | |||
446 | // print symbol table with resolved addresses |
||
447 | Elf32_Sym* esym; |
||
448 | for (esym = (Elf32_Sym*)symtab_section->data; esym <= (Elf32_Sym*)(symtab_section->data + symtab_section->data_offset); esym++) |
||
449 | { |
||
450 | if (esym->st_info == 0 || esym->st_info == 4) continue; |
||
6441 | siemargl | 451 | int sect = esym->st_shndx; |
452 | ss = findsection(me, sect); |
||
453 | const char *sym_name = strtab_section->data + esym->st_name; |
||
454 | if (ss == 0) |
||
455 | { |
||
456 | fprintf(fdbg, "undefined symbol '%s' type(%d)\n", sym_name, esym->st_info); |
||
457 | continue; |
||
458 | } |
||
459 | fprintf(fdbg, "0x%X %s\n", ss->sh_addr + esym->st_value, sym_name); // removed type(%d) esym->st_info |
||
8157 | Boppan | 460 | } |
461 | |||
462 | fputs(".text source code links\n", fdbg); // just for mtbg |
||
463 | // print symbol table with resolved addresses |
||
464 | Stab_Sym *stab; |
||
465 | char *str = "", *cur_file = "???", cur_fun[255]; |
||
466 | int cur_line = 0, cur_fun_addr = 0, fun_flag = 0; |
||
467 | strcpy(cur_fun, "fn???"); |
||
468 | for (stab = (Stab_Sym*)stab_section->data; stab <= (Stab_Sym*)(stab_section->data + stab_section->data_offset); stab++) |
||
469 | { |
||
470 | str = ""; |
||
471 | switch(stab->n_type) |
||
472 | { |
||
473 | case 100: // source file, or path |
||
474 | if (stab->n_strx) |
||
475 | { |
||
476 | cur_file = stabstr_section->data + stab->n_strx; |
||
477 | load_source_file(cur_file); |
||
478 | } |
||
479 | else |
||
480 | cur_file = "???"; |
||
481 | strcpy(cur_fun, "fn???"); |
||
482 | cur_line = 0; |
||
483 | cur_fun_addr = 0; |
||
484 | fun_flag = 0; |
||
485 | break; |
||
486 | case 36: // func |
||
487 | cur_fun_addr = 0; |
||
488 | if (stab->n_strx) |
||
489 | { |
||
490 | strcpy(cur_fun, stabstr_section->data + stab->n_strx); |
||
491 | str = strchr(cur_fun, ':'); |
||
492 | if (str) *str = '\0'; |
||
493 | cur_fun_addr = tcc_find_symbol_me(me, cur_fun); |
||
494 | cur_line = stab->n_desc; |
||
495 | fun_flag = 1; |
||
496 | //fprintf(fdbg, "0x%X %s() line(%d)\n", cur_fun_addr, cur_fun, cur_line); // commented as conflicted with direct address |
||
497 | } |
||
498 | else |
||
499 | strcpy(cur_fun, "fn???"); |
||
500 | break; |
||
501 | case 68: // N_SLINE |
||
502 | if (stab->n_value == 0 ) continue; // skip zero offset line |
||
503 | if (fun_flag) // skip string {, as duplicates address |
||
504 | { |
||
505 | fun_flag = 0; |
||
506 | continue; |
||
507 | } |
||
508 | |||
509 | int line; |
||
510 | if (stab->n_desc > cur_line) |
||
511 | line = cur_line + 1; |
||
512 | else |
||
513 | line = cur_line; |
||
514 | //fprintf(fdbg, "0x%X LINES %d-%d \n", cur_fun_addr + stab->n_value, line, stab->n_desc); |
||
515 | if (get_src_lines(buf, sizeof buf, line, stab->n_desc)) |
||
516 | fprintf(fdbg, "0x%X %s\n", cur_fun_addr + stab->n_value, buf); |
||
517 | |||
518 | cur_line = stab->n_desc; |
||
519 | break; |
||
520 | default: |
||
521 | continue; |
||
522 | } |
||
523 | /* |
||
524 | if (stab->n_strx) |
||
525 | str = stabstr_section->data + stab->n_strx; |
||
526 | fprintf(fdbg, "0x%X type(%d) str(%s) desc(%d)\n", stab->n_value, stab->n_type, str, stab->n_desc); |
||
527 | */ |
||
528 | } |
||
529 | |||
530 | /* for(; si; si = si->next) |
||
531 | { |
||
532 | Section *sr; |
||
6441 | siemargl | 533 | Elf32_Rel *rel, *rel_end; |
534 | for(sr = me->s1->sections[si->sec_num]->reloc; sr; ) |
||
8157 | Boppan | 535 | { |
6441 | siemargl | 536 | for (rel = (Elf32_Rel *) sr->data, rel_end = (Elf32_Rel *) (sr->data + sr->data_offset); rel < rel_end; rel++) |
537 | { |
||
538 | int type = ELF32_R_TYPE(rel->r_info); |
||
539 | if (type != R_386_PC32 && type != R_386_32) |
||
540 | continue; |
||
541 | int sym = ELF32_R_SYM(rel->r_info); |
||
542 | if (sym > symtab_section->data_offset / sizeof(Elf32_Sym)) |
||
543 | continue; |
||
544 | Elf32_Sym* esym = ((Elf32_Sym*)symtab_section->data) + sym; |
||
545 | int sect = esym->st_shndx; |
||
546 | ss = findsection(me, sect); |
||
547 | const char *sym_name = strtab_section->data + esym->st_name; |
||
548 | if (ss == 0) |
||
549 | { |
||
550 | fprintf(fdbg, "undefined symbol '%s'\n", sym_name); |
||
551 | continue; |
||
552 | } |
||
553 | if (rel->r_offset > si->data_size) continue; |
||
554 | fprintf(fdbg, "\t0x%X %s\n", ss->sh_addr + esym->st_value, sym_name); |
||
555 | } |
||
556 | } |
||
8157 | Boppan | 557 | } |
558 | */ |
||
6441 | siemargl | 559 | close_source_file(); |
560 | fclose(fdbg); |
||
561 | return 0; |
||
562 | }>=>=>=>>8;i++) |