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fd67aa11 | 1 | /* Copyright (C) 2021-2024 Free Software Foundation, Inc. |
bb368aad VM |
2 | Contributed by Oracle. |
3 | ||
4 | This file is part of GNU Binutils. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3, or (at your option) | |
9 | any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "config.h" | |
22 | #include <sys/param.h> | |
23 | ||
24 | #include "util.h" | |
25 | #include "Elf.h" | |
26 | #include "Dwarf.h" | |
27 | #include "stab.h" | |
28 | #include "DbeSession.h" | |
29 | #include "CompCom.h" | |
30 | #include "Stabs.h" | |
31 | #include "LoadObject.h" | |
32 | #include "Module.h" | |
33 | #include "Function.h" | |
34 | #include "info.h" | |
35 | #include "StringBuilder.h" | |
36 | #include "DbeFile.h" | |
37 | #include "StringMap.h" | |
38 | ||
39 | #define DISASM_REL_NONE 0 /* symtab search only */ | |
40 | #define DISASM_REL_ONLY 1 /* relocation search only */ | |
41 | #define DISASM_REL_TARG 2 /* relocatoin then symtab */ | |
42 | ||
43 | /////////////////////////////////////////////////////////////////////////////// | |
44 | // class StabReader | |
45 | class StabReader | |
46 | { | |
47 | public: | |
48 | StabReader (Elf *_elf, Platform_t platform, int StabSec, int StabStrSec); | |
49 | ~StabReader () { }; | |
50 | char *get_type_name (int t); | |
51 | char *get_stab (struct stab *np, bool comdat); | |
52 | void parse_N_OPT (Module *mod, char *str); | |
53 | int stabCnt; | |
54 | int stabNum; | |
55 | ||
56 | private: | |
57 | Elf *elf; | |
58 | char *StabData; | |
59 | char *StabStrtab; | |
60 | char *StabStrtabEnd; | |
61 | int StrTabSize; | |
62 | int StabEntSize; | |
63 | }; | |
64 | ||
65 | /////////////////////////////////////////////////////////////////////////////// | |
66 | // class Symbol | |
67 | ||
68 | class Symbol | |
69 | { | |
70 | public: | |
71 | Symbol (Vector<Symbol*> *vec = NULL); | |
72 | ||
73 | ~Symbol () | |
74 | { | |
75 | free (name); | |
76 | } | |
77 | ||
78 | inline Symbol * | |
79 | cardinal () | |
80 | { | |
81 | return alias ? alias : this; | |
82 | } | |
83 | ||
84 | static void dump (Vector<Symbol*> *vec, char*msg); | |
85 | ||
86 | Function *func; | |
87 | Sp_lang_code lang_code; | |
88 | uint64_t value; // st_value used in sym_name() | |
89 | uint64_t save; | |
90 | int64_t size; | |
91 | uint64_t img_offset; // image offset in the ELF file | |
92 | char *name; | |
93 | Symbol *alias; | |
94 | int local_ind; | |
95 | int flags; | |
96 | bool defined; | |
97 | }; | |
98 | ||
99 | Symbol::Symbol (Vector<Symbol*> *vec) | |
100 | { | |
101 | func = NULL; | |
102 | lang_code = Sp_lang_unknown; | |
103 | value = 0; | |
104 | save = 0; | |
105 | size = 0; | |
106 | img_offset = 0; | |
107 | name = NULL; | |
108 | alias = NULL; | |
109 | local_ind = -1; | |
110 | flags = 0; | |
111 | defined = false; | |
112 | if (vec) | |
113 | vec->append (this); | |
114 | } | |
115 | ||
116 | void | |
117 | Symbol::dump (Vector<Symbol*> *vec, char*msg) | |
118 | { | |
119 | if (!DUMP_ELF_SYM || vec == NULL || vec->size () == 0) | |
120 | return; | |
121 | printf (NTXT ("======= Symbol::dump: %s =========\n" | |
122 | " value | img_offset | flags|local_ind|\n"), msg); | |
123 | for (int i = 0; i < vec->size (); i++) | |
124 | { | |
125 | Symbol *sp = vec->fetch (i); | |
126 | printf (NTXT (" %3d %8lld |0x%016llx |%5d |%8d |%s\n"), | |
127 | i, (long long) sp->value, (long long) sp->img_offset, sp->flags, | |
128 | sp->local_ind, sp->name ? sp->name : NTXT ("NULL")); | |
129 | } | |
130 | printf (NTXT ("\n===== END of Symbol::dump: %s =========\n\n"), msg); | |
131 | } | |
132 | ||
133 | // end of class Symbol | |
134 | /////////////////////////////////////////////////////////////////////////////// | |
135 | ||
136 | /////////////////////////////////////////////////////////////////////////////// | |
137 | // class Reloc | |
138 | class Reloc | |
139 | { | |
140 | public: | |
141 | Reloc (); | |
142 | ~Reloc (); | |
143 | uint64_t type; | |
144 | uint64_t value; | |
145 | uint64_t addend; | |
146 | char *name; | |
147 | }; | |
148 | ||
149 | Reloc::Reloc () | |
150 | { | |
151 | type = 0; | |
152 | value = 0; | |
153 | addend = 0; | |
154 | name = NULL; | |
155 | } | |
156 | ||
157 | Reloc::~Reloc () | |
158 | { | |
159 | free (name); | |
160 | } | |
161 | // end of class Reloc | |
162 | /////////////////////////////////////////////////////////////////////////////// | |
163 | ||
164 | enum | |
165 | { | |
166 | SYM_PLT = 1 << 0, | |
167 | SYM_UNDEF = 1 << 1 | |
168 | }; | |
169 | ||
170 | enum Section_type | |
171 | { | |
172 | COMM1_SEC = 0x10000000, | |
173 | COMM_SEC = 0x20000000, | |
174 | INFO_SEC = 0x30000000, | |
175 | LOOP_SEC = 0x40000000 | |
176 | }; | |
177 | ||
178 | struct cpf_stabs_t | |
179 | { | |
180 | uint32_t type; // Archive::AnalyzerInfoType | |
181 | uint32_t offset; // offset in .__analyzer_info | |
182 | Module *module; // table for appropriate Module | |
183 | }; | |
184 | ||
185 | static char *get_info_com (int type, int32_t copy_inout); | |
186 | static char *get_lp_com (unsigned hints, int parallel, char *dep); | |
187 | static int ComCmp (const void *a, const void *b); | |
188 | static ino64_t _src_inode = 0; | |
189 | static char *_src_name; | |
190 | ||
191 | // Comparing name | |
192 | static int | |
193 | SymNameCmp (const void *a, const void *b) | |
194 | { | |
195 | Symbol *item1 = *((Symbol **) a); | |
196 | Symbol *item2 = *((Symbol **) b); | |
197 | return (item1->name == NULL) ? -1 : | |
198 | (item2->name == NULL) ? 1 : strcmp (item1->name, item2->name); | |
199 | } | |
200 | ||
201 | // Comparing value: for sorting | |
202 | static int | |
203 | SymValueCmp (const void *a, const void *b) | |
204 | { | |
205 | Symbol *item1 = *((Symbol **) a); | |
206 | Symbol *item2 = *((Symbol **) b); | |
207 | return (item1->value > item2->value) ? 1 : | |
208 | (item1->value == item2->value) ? SymNameCmp (a, b) : -1; | |
209 | } | |
210 | ||
211 | // Comparing value: for searching (source name is always NULL) | |
212 | static int | |
213 | SymFindCmp (const void *a, const void *b) | |
214 | { | |
215 | Symbol *item1 = *((Symbol **) a); | |
216 | Symbol *item2 = *((Symbol **) b); | |
217 | if (item1->value < item2->value) | |
218 | return -1; | |
219 | if (item1->value < item2->value + item2->size | |
220 | || item1->value == item2->value) // item2->size == 0 | |
221 | return 0; | |
222 | return 1; | |
223 | } | |
224 | ||
225 | // Comparing value for sorting. It is used only for searching aliases. | |
226 | static int | |
227 | SymImgOffsetCmp (const void *a, const void *b) | |
228 | { | |
229 | Symbol *item1 = *((Symbol **) a); | |
230 | Symbol *item2 = *((Symbol **) b); | |
231 | return (item1->img_offset > item2->img_offset) ? 1 : | |
232 | (item1->img_offset == item2->img_offset) ? SymNameCmp (a, b) : -1; | |
233 | } | |
234 | ||
235 | static int | |
236 | RelValueCmp (const void *a, const void *b) | |
237 | { | |
238 | Reloc *item1 = *((Reloc **) a); | |
239 | Reloc *item2 = *((Reloc **) b); | |
240 | return (item1->value > item2->value) ? 1 : | |
241 | (item1->value == item2->value) ? 0 : -1; | |
242 | } | |
243 | ||
244 | Stabs * | |
245 | Stabs::NewStabs (char *_path, char *lo_name) | |
246 | { | |
247 | Stabs *stabs = new Stabs (_path, lo_name); | |
248 | if (stabs->status != Stabs::DBGD_ERR_NONE) | |
249 | { | |
250 | delete stabs; | |
251 | return NULL; | |
252 | } | |
253 | return stabs; | |
254 | } | |
255 | ||
256 | Stabs::Stabs (char *_path, char *_lo_name) | |
257 | { | |
258 | path = dbe_strdup (_path); | |
259 | lo_name = dbe_strdup (_lo_name); | |
260 | SymLstByName = NULL; | |
261 | pltSym = NULL; | |
262 | SymLst = new Vector<Symbol*>; | |
263 | RelLst = new Vector<Reloc*>; | |
264 | RelPLTLst = new Vector<Reloc*>; | |
265 | LocalLst = new Vector<Symbol*>; | |
266 | LocalFile = new Vector<char*>; | |
267 | LocalFileIdx = new Vector<int>; | |
268 | last_PC_to_sym = NULL; | |
269 | dwarf = NULL; | |
270 | elfDbg = NULL; | |
271 | elfDis = NULL; | |
272 | stabsModules = NULL; | |
273 | textsz = 0; | |
274 | wsize = Wnone; | |
275 | st_check_symtab = st_check_relocs = false; | |
276 | status = DBGD_ERR_NONE; | |
277 | ||
278 | if (openElf (false) == NULL) | |
279 | return; | |
280 | switch (elfDis->elf_getclass ()) | |
281 | { | |
282 | case ELFCLASS32: | |
283 | wsize = W32; | |
284 | break; | |
285 | case ELFCLASS64: | |
286 | wsize = W64; | |
287 | break; | |
288 | } | |
289 | isRelocatable = elfDis->elf_getehdr ()->e_type == ET_REL; | |
290 | for (unsigned int pnum = 0; pnum < elfDis->elf_getehdr ()->e_phnum; pnum++) | |
291 | { | |
292 | Elf_Internal_Phdr *phdr = elfDis->get_phdr (pnum); | |
293 | if (phdr->p_type == PT_LOAD && phdr->p_flags == (PF_R | PF_X)) | |
294 | { | |
295 | if (textsz == 0) | |
296 | textsz = phdr->p_memsz; | |
297 | else | |
298 | { | |
299 | textsz = 0; | |
300 | break; | |
301 | } | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | Stabs::~Stabs () | |
307 | { | |
bb368aad VM |
308 | delete SymLstByName; |
309 | Destroy (SymLst); | |
310 | Destroy (RelLst); | |
311 | Destroy (RelPLTLst); | |
312 | Destroy (LocalFile); | |
313 | delete elfDis; | |
314 | delete dwarf; | |
315 | delete LocalLst; | |
316 | delete LocalFileIdx; | |
317 | delete stabsModules; | |
318 | free (path); | |
319 | free (lo_name); | |
320 | } | |
321 | ||
322 | Elf * | |
323 | Stabs::openElf (char *fname, Stab_status &st) | |
324 | { | |
325 | Elf::Elf_status elf_status; | |
326 | Elf *elf = Elf::elf_begin (fname, &elf_status); | |
327 | if (elf == NULL) | |
328 | { | |
329 | switch (elf_status) | |
330 | { | |
331 | case Elf::ELF_ERR_CANT_OPEN_FILE: | |
332 | case Elf::ELF_ERR_CANT_MMAP: | |
333 | case Elf::ELF_ERR_BIG_FILE: | |
334 | st = DBGD_ERR_CANT_OPEN_FILE; | |
335 | break; | |
336 | case Elf::ELF_ERR_BAD_ELF_FORMAT: | |
337 | default: | |
338 | st = DBGD_ERR_BAD_ELF_FORMAT; | |
339 | break; | |
340 | } | |
341 | return NULL; | |
342 | } | |
343 | if (elf->elf_version (EV_CURRENT) == EV_NONE) | |
344 | { | |
345 | // ELF library out of date | |
346 | delete elf; | |
347 | st = DBGD_ERR_BAD_ELF_LIB; | |
348 | return NULL; | |
349 | } | |
350 | ||
351 | Elf_Internal_Ehdr *ehdrp = elf->elf_getehdr (); | |
352 | if (ehdrp == NULL) | |
353 | { | |
354 | // check machine | |
355 | delete elf; | |
356 | st = DBGD_ERR_BAD_ELF_FORMAT; | |
357 | return NULL; | |
358 | } | |
359 | switch (ehdrp->e_machine) | |
360 | { | |
361 | case EM_SPARC: | |
362 | platform = Sparc; | |
363 | break; | |
364 | case EM_SPARC32PLUS: | |
365 | platform = Sparcv8plus; | |
366 | break; | |
367 | case EM_SPARCV9: | |
368 | platform = Sparcv9; | |
369 | break; | |
370 | case EM_386: | |
371 | // case EM_486: | |
372 | platform = Intel; | |
373 | break; | |
374 | case EM_X86_64: | |
375 | platform = Amd64; | |
376 | break; | |
377 | case EM_AARCH64: | |
378 | platform = Aarch64; | |
379 | break; | |
380 | default: | |
381 | platform = Unknown; | |
382 | break; | |
383 | } | |
384 | return elf; | |
385 | } | |
386 | ||
387 | Elf * | |
388 | Stabs::openElf (bool dbg_info) | |
389 | { | |
390 | if (status != DBGD_ERR_NONE) | |
391 | return NULL; | |
392 | if (elfDis == NULL) | |
393 | { | |
394 | elfDis = openElf (path, status); | |
395 | if (elfDis == NULL) | |
396 | return NULL; | |
397 | } | |
398 | if (!dbg_info) | |
399 | return elfDis; | |
400 | if (elfDbg == NULL) | |
401 | { | |
402 | elfDbg = elfDis->find_ancillary_files (lo_name); | |
403 | if (elfDbg == NULL) | |
404 | elfDbg = elfDis; | |
405 | } | |
406 | return elfDbg; | |
407 | } | |
408 | ||
409 | bool | |
410 | Stabs::read_symbols (Vector<Function*> *functions) | |
411 | { | |
412 | if (openElf (true) == NULL) | |
413 | return false; | |
414 | check_Symtab (); | |
415 | check_Relocs (); | |
416 | if (functions) | |
417 | { | |
418 | Function *fp; | |
419 | int index; | |
420 | Vec_loop (Function*, functions, index, fp) | |
421 | { | |
422 | fp->img_fname = path; | |
423 | } | |
424 | } | |
425 | return true; | |
426 | } | |
427 | ||
428 | char * | |
429 | Stabs::sym_name (uint64_t target, uint64_t instr, int flag) | |
430 | { | |
431 | long index; | |
432 | if (flag == DISASM_REL_ONLY || flag == DISASM_REL_TARG) | |
433 | { | |
434 | Reloc *relptr = new Reloc; | |
435 | relptr->value = instr; | |
436 | index = RelLst->bisearch (0, -1, &relptr, RelValueCmp); | |
437 | if (index >= 0) | |
438 | { | |
439 | delete relptr; | |
440 | return RelLst->fetch (index)->name; | |
441 | } | |
442 | if (!is_relocatable ()) | |
443 | { | |
444 | relptr->value = target; | |
445 | index = RelPLTLst->bisearch (0, -1, &relptr, RelValueCmp); | |
446 | if (index >= 0) | |
447 | { | |
448 | delete relptr; | |
449 | return RelPLTLst->fetch (index)->name; | |
450 | } | |
451 | } | |
452 | delete relptr; | |
453 | } | |
454 | if (flag == DISASM_REL_NONE || flag == DISASM_REL_TARG || !is_relocatable ()) | |
455 | { | |
456 | Symbol *sptr; | |
457 | sptr = map_PC_to_sym (target); | |
458 | if (sptr && sptr->value == target) | |
459 | return sptr->name; | |
460 | } | |
461 | return NULL; | |
462 | } | |
463 | ||
464 | Symbol * | |
465 | Stabs::map_PC_to_sym (uint64_t pc) | |
466 | { | |
467 | if (pc == 0) | |
468 | return NULL; | |
469 | if (last_PC_to_sym && last_PC_to_sym->value <= pc | |
470 | && last_PC_to_sym->value + last_PC_to_sym->size > pc) | |
471 | return last_PC_to_sym; | |
472 | Symbol *sym = new Symbol; | |
473 | sym->value = pc; | |
474 | long index = SymLst->bisearch (0, -1, &sym, SymFindCmp); | |
475 | delete sym; | |
476 | if (index >= 0) | |
477 | { | |
478 | last_PC_to_sym = SymLst->fetch (index)->cardinal (); | |
479 | return last_PC_to_sym; | |
480 | } | |
481 | return NULL; | |
482 | } | |
483 | ||
484 | Function * | |
485 | Stabs::map_PC_to_func (uint64_t pc, uint64_t &low_pc, Vector<Function*> *functions) | |
486 | { | |
487 | int index; | |
488 | Function *func; | |
489 | Symbol *sptr = map_PC_to_sym (pc); | |
490 | if (sptr == NULL) | |
491 | return NULL; | |
492 | if (sptr->func) | |
493 | { | |
494 | low_pc = sptr->value; | |
495 | return sptr->func; | |
496 | } | |
497 | if (functions) | |
498 | { | |
499 | Vec_loop (Function*, functions, index, func) | |
500 | { | |
501 | if (func->img_offset == sptr->img_offset) | |
502 | { | |
503 | sptr->func = func->cardinal (); | |
504 | low_pc = sptr->value; | |
505 | return sptr->func; | |
506 | } | |
507 | } | |
508 | } | |
509 | return NULL; | |
510 | } | |
511 | ||
512 | Stabs::Stab_status | |
513 | Stabs::read_stabs (ino64_t srcInode, Module *module, Vector<ComC*> *comComs, | |
514 | bool readDwarf) | |
515 | { | |
516 | if (module) | |
517 | module->setIncludeFile (NULL); | |
518 | ||
519 | if (openElf (true) == NULL) | |
520 | return status; | |
521 | check_Symtab (); | |
522 | ||
523 | // read compiler commentary from .compcom1, .compcom, | |
524 | // .info, .loops, and .loopview sections | |
525 | if (comComs) | |
526 | { | |
527 | _src_inode = srcInode; | |
528 | _src_name = module && module->file_name ? get_basename (module->file_name) : NULL; | |
529 | if (!check_Comm (comComs)) | |
530 | // .loops, and .loopview are now in .compcom | |
531 | check_Loop (comComs); | |
532 | ||
533 | // should not read it after .info goes into .compcom | |
534 | check_Info (comComs); | |
535 | comComs->sort (ComCmp); | |
536 | } | |
537 | ||
538 | // get stabs info | |
539 | Stab_status statusStabs = DBGD_ERR_NO_STABS; | |
540 | #define SRC_LINE_STABS(sec, secStr, comdat) \ | |
541 | if ((elfDbg->sec) && (elfDbg->secStr) && \ | |
542 | srcline_Stabs(module, elfDbg->sec, elfDbg->secStr, comdat) == DBGD_ERR_NONE) \ | |
543 | statusStabs = DBGD_ERR_NONE | |
544 | ||
545 | SRC_LINE_STABS (stabExcl, stabExclStr, false); | |
546 | SRC_LINE_STABS (stab, stabStr, false); | |
547 | SRC_LINE_STABS (stabIndex, stabIndexStr, true); | |
548 | ||
549 | // read Dwarf, if any sections found | |
550 | if (elfDbg->dwarf && readDwarf) | |
551 | { | |
552 | openDwarf ()->srcline_Dwarf (module); | |
553 | if (dwarf && dwarf->status == DBGD_ERR_NONE) | |
554 | return DBGD_ERR_NONE; | |
555 | } | |
556 | return statusStabs; | |
557 | } | |
558 | ||
559 | static int | |
560 | ComCmp (const void *a, const void *b) | |
561 | { | |
562 | ComC *item1 = *((ComC **) a); | |
563 | ComC *item2 = *((ComC **) b); | |
564 | return (item1->line > item2->line) ? 1 : | |
565 | (item1->line < item2->line) ? -1 : | |
566 | (item1->sec > item2->sec) ? 1 : | |
567 | (item1->sec < item2->sec) ? -1 : 0; | |
568 | } | |
569 | ||
570 | static int | |
571 | check_src_name (char *srcName) | |
572 | { | |
573 | if (_src_name && srcName && streq (_src_name, get_basename (srcName))) | |
574 | return 1; | |
575 | if (_src_inode == (ino64_t) - 1) | |
576 | return 0; | |
577 | DbeFile *dbeFile = dbeSession->getDbeFile (srcName, DbeFile::F_SOURCE); | |
578 | char *path = dbeFile->get_location (); | |
579 | return (path == NULL || dbeFile->sbuf.st_ino != _src_inode) ? 0 : 1; | |
580 | } | |
581 | ||
582 | bool | |
583 | Stabs::check_Comm (Vector<ComC*> *comComs) | |
584 | { | |
585 | int sz = comComs->size (); | |
586 | Elf *elf = openElf (true); | |
587 | if (elf == NULL) | |
588 | return false; | |
589 | ||
590 | for (unsigned int sec = 1; sec < elf->elf_getehdr ()->e_shnum; sec++) | |
591 | { | |
592 | char *name = elf->get_sec_name (sec); | |
593 | if (name == NULL) | |
594 | continue; | |
595 | Section_type sec_type; | |
596 | if (streq (name, NTXT (".compcom"))) | |
597 | sec_type = COMM_SEC; | |
598 | else if (streq (name, NTXT (".compcom1"))) | |
599 | sec_type = COMM1_SEC; | |
600 | else | |
601 | continue; | |
602 | ||
603 | // find header, set messages id & visibility if succeed | |
604 | CompComment *cc = new CompComment (elf, sec); | |
605 | int cnt = cc->compcom_open ((CheckSrcName) check_src_name); | |
606 | // process messages | |
607 | for (int index = 0; index < cnt; index++) | |
608 | { | |
609 | int visible; | |
610 | compmsg msg; | |
611 | char *str = cc->compcom_format (index, &msg, visible); | |
612 | if (str) | |
613 | { | |
614 | ComC *citem = new ComC; | |
615 | citem->sec = sec_type + index; | |
616 | citem->type = msg.msg_type; | |
617 | citem->visible = visible; | |
618 | citem->line = (msg.lineno < 1) ? 1 : msg.lineno; | |
619 | citem->com_str = str; | |
620 | comComs->append (citem); | |
621 | } | |
622 | } | |
623 | delete cc; | |
624 | } | |
625 | return (sz != comComs->size ()); | |
626 | } | |
627 | ||
628 | static int | |
629 | targetOffsetCmp (const void *a, const void *b) | |
630 | { | |
631 | uint32_t o1 = ((target_info_t *) a)->offset; | |
632 | uint32_t o2 = ((target_info_t *) b)->offset; | |
633 | return (o1 >= o2); | |
634 | } | |
635 | ||
636 | void | |
637 | Stabs::check_AnalyzerInfo () | |
638 | { | |
639 | Elf *elf = openElf (true); | |
640 | if ((elf == NULL) || (elf->analyzerInfo == 0)) | |
641 | { | |
642 | Dprintf (DEBUG_STABS, NTXT ("Stabs::check_AnalyzerInfo: Null AnalyzerInfo section\n")); | |
643 | return; // inappropriate, but ignored anyway | |
644 | } | |
645 | Elf_Data *data = elf->elf_getdata (elf->analyzerInfo); | |
646 | int InfoSize = (int) data->d_size; | |
647 | char *InfoData = (char *) data->d_buf; | |
648 | int InfoAlign = (int) data->d_align; | |
649 | AnalyzerInfoHdr h; | |
650 | unsigned infoHdr_sz = sizeof (AnalyzerInfoHdr); | |
651 | int table, entry; | |
652 | int read = 0; | |
653 | Module *mitem; | |
654 | int index = 0; | |
655 | if (InfoSize <= 0) | |
656 | return; | |
657 | uint64_t baseAddr = elf->get_baseAddr (); | |
658 | Dprintf (DEBUG_STABS, NTXT ("Stabs::check_AnalyzerInfo size=%d @0x%lx (align=%d) base=0x%llx\n"), | |
659 | InfoSize, (ul_t) InfoData, InfoAlign, (long long) baseAddr); | |
660 | Dprintf (DEBUG_STABS, NTXT ("analyzerInfoMap has %lld entries\n"), (long long) analyzerInfoMap.size ()); | |
661 | if (analyzerInfoMap.size () == 0) | |
662 | { | |
663 | Dprintf (DEBUG_STABS, NTXT ("No analyzerInfoMap available!\n")); | |
664 | return; | |
665 | } | |
666 | ||
667 | // verify integrity of analyzerInfoMap before reading analyzerInfo | |
668 | unsigned count = 0; | |
669 | Module *lastmod = NULL; | |
670 | for (index = 0; index < analyzerInfoMap.size (); index++) | |
671 | { | |
672 | cpf_stabs_t map = analyzerInfoMap.fetch (index); | |
673 | if (map.type > 3) | |
674 | { | |
675 | Dprintf (DEBUG_STABS, NTXT ("analyzerInfo contains table of unknown type %d for %s\n"), | |
676 | map.type, map.module->get_name ()); | |
677 | return; | |
678 | } | |
679 | if (map.module != lastmod) | |
680 | { | |
681 | if (lastmod != NULL) | |
682 | Dprintf (DEBUG_STABS, "analyzerInfo contains %d 0x0 offset tables for %s\n", | |
683 | count, lastmod->get_name ()); | |
684 | count = 0; | |
685 | } | |
686 | count += (map.offset == 0x0); // only check for 0x0 tables for now | |
687 | if (count > 4) | |
688 | { | |
689 | Dprintf (DEBUG_STABS, NTXT ("analyzerInfo contains too many 0x0 offset tables for %s\n"), | |
690 | map.module->get_name ()); | |
691 | return; | |
692 | } | |
693 | lastmod = map.module; | |
694 | } | |
695 | ||
696 | index = 0; | |
697 | while ((index < analyzerInfoMap.size ()) && (read < InfoSize)) | |
698 | { | |
699 | for (table = 0; table < 3; table++) | |
700 | { // memory operations (ld, st, prefetch) | |
701 | // read the table header | |
702 | memcpy ((void *) &h, (const void *) InfoData, infoHdr_sz); | |
703 | InfoData += infoHdr_sz; | |
704 | read += infoHdr_sz; | |
705 | ||
706 | // use map for appropriate module | |
707 | cpf_stabs_t map = analyzerInfoMap.fetch (index); | |
708 | index++; | |
709 | mitem = map.module; | |
710 | Dprintf (DEBUG_STABS, "Table %d offset=0x%04x " | |
711 | "text_labelref=0x%08llx entries=%d version=%d\n" | |
712 | "itype %d offset=0x%04x module=%s\n", table, read, | |
713 | (long long) (h.text_labelref - baseAddr), h.entries, | |
714 | h.version, map.type, map.offset, map.module->get_name ()); | |
715 | // read the table entries | |
716 | for (entry = 0; entry < h.entries; entry++) | |
717 | { | |
718 | memop_info_t *m = new memop_info_t; | |
719 | unsigned memop_info_sz = sizeof (memop_info_t); | |
720 | memcpy ((void *) m, (const void *) InfoData, memop_info_sz); | |
721 | InfoData += memop_info_sz; | |
722 | read += memop_info_sz; | |
723 | m->offset += (uint32_t) (h.text_labelref - baseAddr); | |
724 | Dprintf (DEBUG_STABS, NTXT ("%4d(%d): offset=0x%04x id=0x%08x sig=0x%08x dtid=0x%08x\n"), | |
725 | entry, table, m->offset, m->id, m->signature, m->datatype_id); | |
726 | switch (table) | |
727 | { | |
728 | case CPF_INSTR_TYPE_LD: | |
729 | mitem->ldMemops.append (m); | |
730 | break; | |
731 | case CPF_INSTR_TYPE_ST: | |
732 | mitem->stMemops.append (m); | |
733 | break; | |
734 | case CPF_INSTR_TYPE_PREFETCH: | |
735 | mitem->pfMemops.append (m); | |
736 | break; | |
737 | } | |
738 | } | |
739 | // following re-alignment should be redundant | |
740 | //InfoData+=(read%InfoAlign); read+=(read%InfoAlign); // re-align | |
741 | } | |
742 | for (table = 3; table < 4; table++) | |
743 | { // branch targets | |
744 | memcpy ((void *) &h, (const void *) InfoData, infoHdr_sz); | |
745 | InfoData += infoHdr_sz; | |
746 | read += infoHdr_sz; | |
747 | ||
748 | // use map for appropriate module | |
749 | cpf_stabs_t map = analyzerInfoMap.fetch (index); | |
750 | index++; | |
751 | mitem = map.module; | |
752 | Dprintf (DEBUG_STABS, "Table %d offset=0x%04x " | |
753 | "text_labelref=0x%08llx entries=%d version=%d\n" | |
754 | "itype %d offset=0x%04x module=%s\n", table, read, | |
755 | (long long) (h.text_labelref - baseAddr), h.entries, | |
756 | h.version, map.type, map.offset, map.module->get_name ()); | |
757 | for (entry = 0; entry < h.entries; entry++) | |
758 | { | |
759 | target_info_t *t = new target_info_t; | |
760 | unsigned target_info_sz = sizeof (target_info_t); | |
761 | memcpy ((void *) t, (const void *) InfoData, target_info_sz); | |
762 | InfoData += target_info_sz; | |
763 | read += target_info_sz; | |
764 | t->offset += (uint32_t) (h.text_labelref - baseAddr); | |
765 | Dprintf (DEBUG_STABS, NTXT ("%4d(%d): offset=0x%04x\n"), entry, | |
766 | table, t->offset); | |
767 | // the list of branch targets needs to be in offset sorted order | |
768 | // and doing it here before archiving avoids the need to do it | |
769 | // each time the archive is read. | |
770 | mitem->bTargets.incorporate (t, targetOffsetCmp); | |
771 | } | |
772 | Dprintf (DEBUG_STABS, NTXT ("bTargets for %s has %lld items (last=0x%04x)\n"), | |
773 | mitem->get_name (), (long long) mitem->bTargets.size (), | |
774 | (mitem->bTargets.fetch (mitem->bTargets.size () - 1))->offset); | |
775 | Dprintf (DEBUG_STABS, "read=%d at end of bTargets (InfoData=0x%lx)\n", | |
776 | read, (ul_t) InfoData); | |
777 | InfoData += (read % InfoAlign); | |
778 | read += (read % InfoAlign); // re-align | |
779 | Dprintf (DEBUG_STABS, "read=%d at end of bTargets (InfoData=0x%lx)\n", | |
780 | read, (ul_t) InfoData); | |
781 | } | |
782 | Dprintf (DEBUG_STABS, "Stabs::check_AnalyzerInfo bytes read=%lld (index=%lld/%lld)\n", | |
783 | (long long) read, (long long) index, | |
784 | (long long) analyzerInfoMap.size ()); | |
785 | } | |
786 | } | |
787 | ||
788 | void | |
789 | Stabs::check_Info (Vector<ComC*> *comComs) | |
790 | { | |
791 | Elf *elf = openElf (true); | |
792 | if (elf == NULL || elf->info == 0) | |
793 | return; | |
794 | Elf_Data *data = elf->elf_getdata (elf->info); | |
795 | uint64_t InfoSize = data->d_size; | |
796 | char *InfoData = (char *) data->d_buf; | |
797 | bool get_src = false; | |
798 | for (int h_num = 0; InfoSize; h_num++) | |
799 | { | |
800 | if (InfoSize < sizeof (struct info_header)) | |
801 | return; | |
802 | struct info_header *h = (struct info_header*) InfoData; | |
803 | if (h->endian != '\0' || h->magic[0] != 'S' || h->magic[1] != 'U' | |
804 | || h->magic[2] != 'N') | |
805 | return; | |
806 | if (h->len < InfoSize || h->len < sizeof (struct info_header) || (h->len & 3)) | |
807 | return; | |
808 | ||
809 | char *fname = InfoData + sizeof (struct info_header); | |
810 | InfoData += h->len; | |
811 | InfoSize -= h->len; | |
812 | get_src = check_src_name (fname); | |
813 | for (uint32_t e_num = 0; e_num < h->cnt; ++e_num) | |
814 | { | |
815 | if (InfoSize < sizeof (struct entry_header)) | |
816 | return; | |
817 | struct entry_header *e = (struct entry_header*) InfoData; | |
818 | if (InfoSize < e->len) | |
819 | return; | |
820 | int32_t copy_inout = 0; | |
821 | if (e->len > sizeof (struct entry_header)) | |
822 | if (e->type == F95_COPYINOUT) | |
823 | copy_inout = *(int32_t*) (InfoData + sizeof (struct entry_header)); | |
824 | InfoData += e->len; | |
825 | InfoSize -= e->len; | |
826 | if (get_src) | |
827 | { | |
828 | ComC *citem = new ComC; | |
829 | citem->sec = INFO_SEC + h_num; | |
830 | citem->type = e->msgnum & 0xFFFFFF; | |
831 | citem->visible = CCMV_ALL; | |
832 | citem->line = e->line; | |
833 | citem->com_str = get_info_com (citem->type, copy_inout); | |
834 | comComs->append (citem); | |
835 | } | |
836 | } | |
837 | if (get_src) | |
838 | break; | |
839 | } | |
840 | } | |
841 | ||
842 | static char * | |
843 | get_info_com (int type, int32_t copy_inout) | |
844 | { | |
845 | switch (type) | |
846 | { | |
847 | case 1: | |
848 | return dbe_sprintf (GTXT ("In the call below, parameter number %d caused a copy-in -- loop(s) inserted"), | |
849 | copy_inout); | |
850 | case 2: | |
851 | return dbe_sprintf (GTXT ("In the call below, parameter number %d caused a copy-out -- loop(s) inserted"), | |
852 | copy_inout); | |
853 | case 3: | |
854 | return dbe_sprintf (GTXT ("In the call below, parameter number %d caused a copy-in and a copy-out -- loops inserted"), | |
855 | copy_inout); | |
856 | case 4: | |
857 | return dbe_strdup (GTXT ("Alignment of variables in common block may cause performance degradation")); | |
858 | case 5: | |
859 | return dbe_strdup (GTXT ("DO statement bounds lead to no executions of the loop")); | |
860 | default: | |
861 | return dbe_strdup (NTXT ("")); | |
862 | } | |
863 | } | |
864 | ||
865 | void | |
866 | Stabs::check_Loop (Vector<ComC*> *comComs) | |
867 | { | |
868 | Elf *elf = openElf (true); | |
869 | if (elf == NULL) | |
870 | return; | |
871 | ||
872 | StringBuilder sb; | |
873 | for (unsigned int sec = 1; sec < elf->elf_getehdr ()->e_shnum; sec++) | |
874 | { | |
875 | char *name = elf->get_sec_name (sec); | |
876 | if (name == NULL) | |
877 | continue; | |
878 | if (!streq (name, NTXT (".loops")) && !streq (name, NTXT (".loopview"))) | |
879 | continue; | |
880 | ||
881 | Elf_Data *data = elf->elf_getdata (sec); | |
882 | size_t LoopSize = (size_t) data->d_size, len; | |
883 | char *LoopData = (char *) data->d_buf; | |
884 | int remainder, i; | |
885 | char src[2 * MAXPATHLEN], buf1[MAXPATHLEN], buf2[MAXPATHLEN]; | |
886 | char **dep_str = NULL; | |
887 | bool get_src = false; | |
888 | while ((LoopSize > 0) && !get_src && | |
889 | (strncmp (LoopData, NTXT ("Source:"), 7) == 0)) | |
890 | { | |
891 | // The first three items in a .loops subsection are three strings. | |
892 | // Source: ... | |
893 | // Version: ... | |
894 | // Number of loops: ... | |
895 | sscanf (LoopData, NTXT ("%*s%s"), src); | |
896 | len = strlen (LoopData) + 1; | |
897 | LoopData += len; | |
898 | LoopSize -= len; | |
899 | sscanf (LoopData, NTXT ("%*s%*s%s"), buf1); | |
900 | // double version = atof(buf1); | |
901 | len = strlen (LoopData) + 1; | |
902 | LoopData += len; | |
903 | LoopSize -= len; | |
904 | get_src = check_src_name (src); | |
905 | sscanf (LoopData, NTXT ("%*s%*s%*s%s%s"), buf1, buf2); | |
906 | int n_loop = atoi (buf1); | |
907 | int n_depend = atoi (buf2); | |
908 | len = strlen (LoopData) + 1; | |
909 | LoopData += len; | |
910 | LoopSize -= len; | |
911 | if (get_src && (n_loop > 0)) | |
912 | { | |
913 | dep_str = new char*[n_loop]; | |
914 | for (i = 0; i < n_loop; i++) | |
915 | dep_str[i] = NULL; | |
916 | } | |
917 | ||
918 | // printf("Source: %s\nVersion: %f\nLoop#: %d\nDepend#: %d\n", | |
919 | // src, version, n_loop, n_depend); | |
920 | ||
921 | // Read in the strings that contain the list of variables that cause | |
922 | // data dependencies inside of loops. Not every loop has such a list | |
923 | // of variables. | |
924 | // | |
925 | // Example: if loop #54 has data dependencies caused by the | |
926 | // variables named i, j and foo, then the string that represents | |
927 | // this in the .loops section looks like this: | |
928 | // | |
929 | // .asciz "54:i.j.foo" | |
930 | // | |
931 | // The variable names are delimited with . | |
932 | // | |
933 | // For now, store these strings in an array, and add them into | |
934 | // the loop structure when we read in the numeric loop info | |
935 | // (that's what we read in next.) | |
936 | // | |
937 | // printf("\tDependenncies:\n"); | |
938 | for (i = 0; i < n_depend; i++) | |
939 | { | |
940 | len = strlen (LoopData) + 1; | |
941 | LoopData += len; | |
942 | LoopSize -= len; | |
943 | if (dep_str != NULL) | |
944 | { | |
945 | char *dep_buf1 = dbe_strdup (LoopData); | |
946 | char *ptr = strtok (dep_buf1, NTXT (":")); | |
947 | if (ptr != NULL) | |
948 | { | |
949 | int index = atoi (ptr); | |
950 | bool dep_first = true; | |
951 | sb.setLength (0); | |
952 | while ((ptr = strtok (NULL, NTXT (", "))) != NULL) | |
953 | { | |
954 | if (dep_first) | |
955 | dep_first = false; | |
956 | else | |
957 | sb.append (NTXT (", ")); | |
958 | sb.append (ptr); | |
959 | } | |
960 | if (sb.length () > 0 && index < n_loop) | |
961 | dep_str[index] = sb.toString (); | |
962 | } | |
963 | free (dep_buf1); | |
964 | } | |
965 | } | |
966 | ||
967 | // Adjust Data pointer so that it is word aligned. | |
968 | remainder = (int) (((unsigned long) LoopData) % 4); | |
969 | if (remainder != 0) | |
970 | { | |
971 | len = 4 - remainder; | |
972 | LoopData += len; | |
973 | LoopSize -= len; | |
974 | } | |
975 | ||
976 | // Read in the loop info, one loop at a time. | |
977 | for (i = 0; i < n_loop; i++) | |
978 | { | |
979 | int loopid = *((int *) LoopData); | |
980 | LoopData += 4; | |
981 | int line_no = *((int *) LoopData); | |
982 | if (line_no < 1) // compiler has trouble on this | |
983 | line_no = 1; | |
984 | LoopData += 4; | |
985 | // int nest = *((int *) LoopData); | |
986 | LoopData += 4; | |
987 | int parallel = *((int *) LoopData); | |
988 | LoopData += 4; | |
989 | unsigned hints = *((unsigned *) LoopData); | |
990 | LoopData += 4; | |
991 | // int count = *((int *) LoopData); | |
992 | LoopData += 4; | |
993 | LoopSize -= 24; | |
994 | if (!get_src || (loopid >= n_loop)) | |
995 | continue; | |
996 | ComC *citem = new ComC; | |
997 | citem->sec = LOOP_SEC + i; | |
998 | citem->type = hints; | |
999 | citem->visible = CCMV_ALL; | |
1000 | citem->line = line_no; | |
1001 | citem->com_str = get_lp_com (hints, parallel, dep_str[loopid]); | |
1002 | comComs->append (citem); | |
1003 | } | |
1004 | if (dep_str) | |
1005 | { | |
1006 | for (i = 0; i < n_loop; i++) | |
1007 | free (dep_str[i]); | |
1008 | delete[] dep_str; | |
1009 | dep_str = NULL; | |
1010 | } | |
1011 | } | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | static char * | |
1016 | get_lp_com (unsigned hints, int parallel, char *dep) | |
1017 | { | |
1018 | StringBuilder sb; | |
1019 | if (parallel == -1) | |
1020 | sb.append (GTXT ("Loop below is serial, but parallelizable: ")); | |
1021 | else if (parallel == 0) | |
1022 | sb.append (GTXT ("Loop below is not parallelized: ")); | |
1023 | else | |
1024 | sb.append (GTXT ("Loop below is parallelized: ")); | |
1025 | switch (hints) | |
1026 | { | |
1027 | case 0: | |
1028 | // No loop mesg will print | |
1029 | // strcat(com, GTXT("no hint available")); | |
1030 | break; | |
1031 | case 1: | |
1032 | sb.append (GTXT ("loop contains procedure call")); | |
1033 | break; | |
1034 | case 2: | |
1035 | sb.append (GTXT ("compiler generated two versions of this loop")); | |
1036 | break; | |
1037 | case 3: | |
1038 | { | |
1039 | StringBuilder sb_tmp; | |
1040 | sb_tmp.sprintf (GTXT ("the variable(s) \"%s\" cause a data dependency in this loop"), | |
1041 | dep ? dep : GTXT ("<Unknown>")); | |
1042 | sb.append (&sb_tmp); | |
1043 | } | |
1044 | break; | |
1045 | case 4: | |
1046 | sb.append (GTXT ("loop was significantly transformed during optimization")); | |
1047 | break; | |
1048 | case 5: | |
1049 | sb.append (GTXT ("loop may or may not hold enough work to be profitably parallelized")); | |
1050 | break; | |
1051 | case 6: | |
1052 | sb.append (GTXT ("loop was marked by user-inserted pragma")); | |
1053 | break; | |
1054 | case 7: | |
1055 | sb.append (GTXT ("loop contains multiple exits")); | |
1056 | break; | |
1057 | case 8: | |
1058 | sb.append (GTXT ("loop contains I/O, or other function calls, that are not MT safe")); | |
1059 | break; | |
1060 | case 9: | |
1061 | sb.append (GTXT ("loop contains backward flow of control")); | |
1062 | break; | |
1063 | case 10: | |
1064 | sb.append (GTXT ("loop may have been distributed")); | |
1065 | break; | |
1066 | case 11: | |
1067 | sb.append (GTXT ("two loops or more may have been fused")); | |
1068 | break; | |
1069 | case 12: | |
1070 | sb.append (GTXT ("two or more loops may have been interchanged")); | |
1071 | break; | |
1072 | default: | |
1073 | break; | |
1074 | } | |
1075 | return sb.toString (); | |
1076 | } | |
1077 | ||
1078 | StabReader::StabReader (Elf *_elf, Platform_t platform, int StabSec, int StabStrSec) | |
1079 | { | |
1080 | stabCnt = -1; | |
1081 | stabNum = 0; | |
1082 | if (_elf == NULL) | |
1083 | return; | |
1084 | elf = _elf; | |
1085 | ||
1086 | // Get ELF data | |
1087 | Elf_Data *data = elf->elf_getdata (StabSec); | |
1088 | if (data == NULL) | |
1089 | return; | |
1090 | uint64_t stabSize = data->d_size; | |
1091 | StabData = (char *) data->d_buf; | |
1092 | Elf_Internal_Shdr *shdr = elf->get_shdr (StabSec); | |
1093 | if (shdr == NULL) | |
1094 | return; | |
1095 | ||
1096 | // GCC bug: sh_entsize is 20 for 64 apps on Linux | |
1097 | StabEntSize = (platform == Amd64 || platform == Sparcv9) ? 12 : (unsigned) shdr->sh_entsize; | |
1098 | if (stabSize == 0 || StabEntSize == 0) | |
1099 | return; | |
1100 | data = elf->elf_getdata (StabStrSec); | |
1101 | if (data == NULL) | |
1102 | return; | |
1103 | shdr = elf->get_shdr (StabStrSec); | |
1104 | if (shdr == NULL) | |
1105 | return; | |
1106 | StabStrtab = (char *) data->d_buf; | |
1107 | StabStrtabEnd = StabStrtab + shdr->sh_size; | |
1108 | StrTabSize = 0; | |
1109 | stabCnt = (int) (stabSize / StabEntSize); | |
1110 | } | |
1111 | ||
1112 | char * | |
1113 | StabReader::get_stab (struct stab *np, bool comdat) | |
1114 | { | |
1115 | struct stab *stbp = (struct stab *) (StabData + stabNum * StabEntSize); | |
1116 | stabNum++; | |
1117 | *np = *stbp; | |
1118 | np->n_desc = elf->decode (stbp->n_desc); | |
1119 | np->n_strx = elf->decode (stbp->n_strx); | |
1120 | np->n_value = elf->decode (stbp->n_value); | |
1121 | switch (np->n_type) | |
1122 | { | |
1123 | case N_UNDF: | |
1124 | case N_ILDPAD: | |
1125 | // Start of new stab section (or padding) | |
1126 | StabStrtab += StrTabSize; | |
1127 | StrTabSize = np->n_value; | |
1128 | } | |
1129 | ||
1130 | char *str = NULL; | |
1131 | if (np->n_strx) | |
1132 | { | |
1133 | if (comdat && np->n_type == N_FUN && np->n_other == 1) | |
1134 | { | |
1135 | if (np->n_strx == 1) | |
1136 | StrTabSize++; | |
1137 | str = StabStrtab + StrTabSize; | |
1138 | // Each COMDAT string must be sized to find the next string: | |
1139 | StrTabSize += strlen (str) + 1; | |
1140 | } | |
1141 | else | |
1142 | str = StabStrtab + np->n_strx; | |
1143 | if (str >= StabStrtabEnd) | |
1144 | str = NULL; | |
1145 | } | |
1146 | if (DEBUG_STABS) | |
1147 | { | |
1148 | char buf[128]; | |
1149 | char *s = get_type_name (np->n_type); | |
1150 | if (s == NULL) | |
1151 | { | |
1152 | snprintf (buf, sizeof (buf), NTXT ("n_type=%d"), np->n_type); | |
1153 | s = buf; | |
1154 | } | |
1155 | if (str) | |
1156 | { | |
1157 | Dprintf (DEBUG_STABS, NTXT ("%4d: .stabs \"%s\",%s,0x%x,0x%x,0x%x\n"), | |
1158 | stabNum - 1, str, s, (int) np->n_other, (int) np->n_desc, | |
1159 | (int) np->n_value); | |
1160 | } | |
1161 | else | |
1162 | Dprintf (DEBUG_STABS, NTXT ("%4d: .stabn %s,0x%x,0x%x,0x%x\n"), | |
1163 | stabNum - 1, s, (int) np->n_other, (int) np->n_desc, | |
1164 | (int) np->n_value); | |
1165 | } | |
1166 | return str; | |
1167 | } | |
1168 | ||
1169 | void | |
1170 | StabReader::parse_N_OPT (Module *mod, char *str) | |
1171 | { | |
1172 | if (mod == NULL || str == NULL) | |
1173 | return; | |
1174 | for (char *s = str; 1; s++) | |
1175 | { | |
1176 | switch (*s) | |
1177 | { | |
1178 | case 'd': | |
1179 | if (s[1] == 'i' && s[2] == ';') | |
1180 | { | |
1181 | delete mod->dot_o_file; | |
1182 | mod->dot_o_file = NULL; | |
1183 | } | |
1184 | break; | |
1185 | case 's': | |
1186 | if ((s[1] == 'i' || s[1] == 'n') && s[2] == ';') | |
1187 | { | |
1188 | delete mod->dot_o_file; | |
1189 | mod->dot_o_file = NULL; | |
1190 | } | |
1191 | break; | |
1192 | } | |
1193 | s = strchr (s, ';'); | |
1194 | if (s == NULL) | |
1195 | break; | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | Stabs::Stab_status | |
1200 | Stabs::srcline_Stabs (Module *module, unsigned int StabSec, | |
1201 | unsigned int StabStrSec, bool comdat) | |
1202 | { | |
1203 | StabReader *stabReader = new StabReader (openElf (true), platform, StabSec, StabStrSec); | |
1204 | int tot = stabReader->stabCnt; | |
1205 | if (tot < 0) | |
1206 | { | |
1207 | delete stabReader; | |
1208 | return DBGD_ERR_NO_STABS; | |
1209 | } | |
1210 | int n, lineno; | |
1211 | char *sbase, *n_so = NTXT (""), curr_src[2 * MAXPATHLEN]; | |
1212 | Function *newFunc; | |
1213 | Sp_lang_code _lang_code = module->lang_code; | |
1214 | Vector<Function*> *functions = module->functions; | |
1215 | bool no_stabs = true; | |
1216 | *curr_src = '\0'; | |
1217 | Function *func = NULL; | |
1218 | int phase = 0; | |
1219 | int stabs_level = 0; | |
1220 | int xline = 0; | |
1221 | ||
1222 | // Find module | |
1223 | for (n = 0; n < tot; n++) | |
1224 | { | |
1225 | struct stab stb; | |
1226 | char *str = stabReader->get_stab (&stb, comdat); | |
1227 | if (stb.n_type == N_UNDF) | |
1228 | phase = 0; | |
1229 | else if (stb.n_type == N_SO) | |
1230 | { | |
1231 | if (str == NULL || *str == '\0') | |
1232 | continue; | |
1233 | if (phase == 0) | |
1234 | { | |
1235 | phase = 1; | |
1236 | n_so = str; | |
1237 | continue; | |
1238 | } | |
1239 | phase = 0; | |
1240 | sbase = str; | |
1241 | if (*str == '/') | |
1242 | { | |
1243 | if (streq (sbase, module->file_name)) | |
1244 | break; | |
1245 | } | |
1246 | else | |
1247 | { | |
1248 | size_t last = strlen (n_so); | |
1249 | if (n_so[last - 1] == '/') | |
1250 | last--; | |
1251 | if (strncmp (n_so, module->file_name, last) == 0 && | |
1252 | module->file_name[last] == '/' && | |
1253 | streq (sbase, module->file_name + last + 1)) | |
1254 | break; | |
1255 | } | |
1256 | } | |
1257 | } | |
1258 | if (n >= tot) | |
1259 | { | |
1260 | delete stabReader; | |
1261 | return DBGD_ERR_NO_STABS; | |
1262 | } | |
1263 | ||
1264 | Include *includes = new Include; | |
1265 | includes->new_src_file (module->getMainSrc (), 0, NULL); | |
1266 | module->hasStabs = true; | |
1267 | *curr_src = '\0'; | |
1268 | phase = 0; | |
1269 | for (n++; n < tot; n++) | |
1270 | { | |
1271 | struct stab stb; | |
1272 | char *str = stabReader->get_stab (&stb, comdat); | |
1273 | int n_desc = (int) ((unsigned short) stb.n_desc); | |
1274 | switch (stb.n_type) | |
1275 | { | |
1276 | case N_UNDF: | |
1277 | case N_SO: | |
1278 | case N_ENDM: | |
1279 | n = tot; | |
1280 | break; | |
1281 | case N_ALIAS: | |
1282 | if (str == NULL) | |
1283 | break; | |
1284 | if (is_fortran (_lang_code)) | |
1285 | { | |
1286 | char *p = strchr (str, ':'); | |
1287 | if (p && streq (p + 1, NTXT ("FMAIN"))) | |
1288 | { | |
1289 | Function *afunc = find_func (NTXT ("MAIN"), functions, true); | |
1290 | if (afunc) | |
1291 | afunc->set_match_name (dbe_strndup (str, p - str)); | |
1292 | break; | |
1293 | } | |
1294 | } | |
1295 | case N_FUN: | |
1296 | case N_OUTL: | |
1297 | if (str == NULL) | |
1298 | break; | |
1299 | if (*str == '@') | |
1300 | { | |
1301 | str++; | |
1302 | if (*str == '>' || *str == '<') | |
1303 | str++; | |
1304 | } | |
1305 | if (stabs_level != 0) | |
1306 | break; | |
1307 | ||
1308 | // find address of the enclosed function | |
1309 | newFunc = find_func (str, functions, is_fortran (_lang_code)); | |
1310 | if (newFunc == NULL) | |
1311 | break; | |
1312 | if (func) | |
1313 | while (func->popSrcFile ()) | |
1314 | ; | |
1315 | func = newFunc; | |
1316 | ||
1317 | // First line info to cover function from the beginning | |
1318 | lineno = xline + n_desc; | |
1319 | if (lineno > 0) | |
1320 | { | |
1321 | // Set the chain of includes for the new function | |
1322 | includes->push_src_files (func); | |
1323 | func->add_PC_info (0, lineno); | |
1324 | no_stabs = false; | |
1325 | } | |
1326 | break; | |
1327 | case N_ENTRY: | |
1328 | break; | |
1329 | case N_CMDLINE: | |
1330 | if (str && !module->comp_flags) | |
1331 | { | |
1332 | char *comp_flags = strchr (str, ';'); | |
1333 | if (comp_flags) | |
1334 | { | |
1335 | module->comp_flags = dbe_strdup (comp_flags + 1); | |
1336 | module->comp_dir = dbe_strndup (str, comp_flags - str); | |
1337 | } | |
1338 | } | |
1339 | break; | |
1340 | case N_LBRAC: | |
1341 | stabs_level++; | |
1342 | break; | |
1343 | case N_RBRAC: | |
1344 | stabs_level--; | |
1345 | break; | |
1346 | case N_XLINE: | |
1347 | xline = n_desc << 16; | |
1348 | break; | |
1349 | case N_SLINE: | |
1350 | if (func == NULL) | |
1351 | break; | |
1352 | no_stabs = false; | |
1353 | lineno = xline + n_desc; | |
1354 | if (func->line_first <= 0) | |
1355 | { | |
1356 | // Set the chain of includes for the new function | |
1357 | includes->push_src_files (func); | |
1358 | func->add_PC_info (0, lineno); | |
1359 | break; | |
1360 | } | |
1361 | if (func->curr_srcfile == NULL) | |
1362 | includes->push_src_files (func); | |
1363 | if (func->line_first != lineno || | |
1364 | !streq (curr_src, func->getDefSrc ()->get_name ())) | |
1365 | func->add_PC_info (stb.n_value, lineno); | |
1366 | break; | |
1367 | case N_OPT: | |
1368 | if ((str != NULL) && streq (str, NTXT ("gcc2_compiled."))) | |
1369 | _lang_code = Sp_lang_gcc; | |
1370 | switch (elfDbg->elf_getehdr ()->e_type) | |
1371 | { | |
1372 | case ET_EXEC: | |
1373 | case ET_DYN: | |
1374 | // set the real object timestamp from the executable's N_OPT stab | |
1375 | // due to bug #4796329 | |
1376 | module->real_timestamp = stb.n_value; | |
1377 | break; | |
1378 | default: | |
1379 | module->curr_timestamp = stb.n_value; | |
1380 | break; | |
1381 | } | |
1382 | break; | |
1383 | case N_GSYM: | |
1384 | if ((str == NULL) || strncmp (str, NTXT ("__KAI_K"), 7)) | |
1385 | break; | |
1386 | str += 7; | |
1387 | if (!strncmp (str, NTXT ("CC_"), 3)) | |
1388 | _lang_code = Sp_lang_KAI_KCC; | |
1389 | else if (!strncmp (str, NTXT ("cc_"), 3)) | |
1390 | _lang_code = Sp_lang_KAI_Kcc; | |
1391 | else if (!strncmp (str, NTXT ("PTS_"), 4) && | |
1392 | (_lang_code != Sp_lang_KAI_KCC) && | |
1393 | (_lang_code != Sp_lang_KAI_Kcc)) | |
1394 | _lang_code = Sp_lang_KAI_KPTS; | |
1395 | break; | |
1396 | case N_BINCL: | |
1397 | includes->new_include_file (module->setIncludeFile (str), func); | |
1398 | break; | |
1399 | case N_EINCL: | |
1400 | includes->end_include_file (func); | |
1401 | break; | |
1402 | case N_SOL: | |
1403 | if (str == NULL) | |
1404 | break; | |
1405 | lineno = xline + n_desc; | |
1406 | if (lineno > 0 && func && func->line_first <= 0) | |
1407 | { | |
1408 | includes->push_src_files (func); | |
1409 | func->add_PC_info (0, lineno); | |
1410 | no_stabs = false; | |
1411 | } | |
1412 | if (streq (sbase, str)) | |
1413 | { | |
1414 | module->setIncludeFile (NULL); | |
1415 | snprintf (curr_src, sizeof (curr_src), NTXT ("%s"), module->file_name); | |
1416 | includes->new_src_file (module->getMainSrc (), lineno, func); | |
1417 | } | |
1418 | else | |
1419 | { | |
1420 | if (streq (sbase, get_basename (str))) | |
1421 | { | |
1422 | module->setIncludeFile (NULL); | |
1423 | snprintf (curr_src, sizeof (curr_src), NTXT ("%s"), module->file_name); | |
1424 | includes->new_src_file (module->setIncludeFile (curr_src), lineno, func); | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | if (*str == '/') | |
1429 | snprintf (curr_src, sizeof (curr_src), NTXT ("%s"), str); | |
1430 | else | |
1431 | { | |
1432 | size_t last = strlen (n_so); | |
1433 | if (last == 0 || n_so[last - 1] != '/') | |
1434 | snprintf (curr_src, sizeof (curr_src), NTXT ("%s/%s"), n_so, str); | |
1435 | else | |
1436 | snprintf (curr_src, sizeof (curr_src), NTXT ("%s%s"), n_so, str); | |
1437 | } | |
1438 | includes->new_src_file (module->setIncludeFile (curr_src), lineno, func); | |
1439 | } | |
1440 | } | |
1441 | break; | |
1442 | } | |
1443 | } | |
1444 | delete includes; | |
1445 | delete stabReader; | |
1446 | return no_stabs ? DBGD_ERR_NO_STABS : DBGD_ERR_NONE; | |
1447 | }//srcline_Stabs | |
1448 | ||
1449 | static bool | |
1450 | cmp_func_name (char *fname, size_t len, char *name, bool fortran) | |
1451 | { | |
1452 | return (strncmp (name, fname, len) == 0 | |
1453 | && (name[len] == 0 | |
1454 | || (fortran && name[len] == '_' && name[len + 1] == 0))); | |
1455 | } | |
1456 | ||
1457 | Function * | |
1458 | Stabs::find_func (char *fname, Vector<Function*> *functions, bool fortran, bool inner_names) | |
1459 | { | |
1460 | char *arg, *name; | |
1461 | Function *item; | |
1462 | int index; | |
1463 | size_t len; | |
1464 | ||
1465 | len = strlen (fname); | |
1466 | arg = strchr (fname, ':'); | |
1467 | if (arg != NULL) | |
1468 | { | |
1469 | if (arg[1] == 'P') // Prototype for function | |
1470 | return NULL; | |
1471 | len -= strlen (arg); | |
1472 | } | |
1473 | ||
1474 | Vec_loop (Function*, functions, index, item) | |
1475 | { | |
1476 | name = item->get_mangled_name (); | |
1477 | if (cmp_func_name (fname, len, name, fortran)) | |
1478 | return item->cardinal (); | |
1479 | } | |
1480 | ||
1481 | if (inner_names) | |
1482 | { | |
1483 | // Dwarf subprograms may only have plain (non-linker) names | |
1484 | // Retry with inner names only | |
1485 | ||
1486 | Vec_loop (Function*, functions, index, item) | |
1487 | { | |
1488 | name = strrchr (item->get_mangled_name (), '.'); | |
1489 | if (!name) continue; | |
1490 | name++; | |
1491 | if (cmp_func_name (fname, len, name, fortran)) | |
1492 | return item->cardinal (); | |
1493 | } | |
1494 | } | |
1495 | return NULL; | |
1496 | } | |
1497 | ||
1498 | Map<const char*, Symbol*> * | |
1499 | Stabs::get_elf_symbols () | |
1500 | { | |
1501 | Elf *elf = openElf (false); | |
1502 | if (elf->elfSymbols == NULL) | |
1503 | { | |
1504 | Map<const char*, Symbol*> *elfSymbols = new StringMap<Symbol*>(128, 128); | |
1505 | elf->elfSymbols = elfSymbols; | |
1506 | for (int i = 0, sz = SymLst ? SymLst->size () : 0; i < sz; i++) | |
1507 | { | |
1508 | Symbol *sym = SymLst->fetch (i); | |
1509 | elfSymbols->put (sym->name, sym); | |
1510 | } | |
1511 | } | |
1512 | return elf->elfSymbols; | |
1513 | } | |
1514 | ||
1515 | void | |
1516 | Stabs::read_dwarf_from_dot_o (Module *mod) | |
1517 | { | |
1518 | Dprintf (DEBUG_STABS, NTXT ("stabsModules: %s\n"), STR (mod->get_name ())); | |
1519 | Vector<Module*> *mods = mod->dot_o_file->seg_modules; | |
1520 | char *bname = get_basename (mod->get_name ()); | |
1521 | for (int i1 = 0, sz1 = mods ? mods->size () : 0; i1 < sz1; i1++) | |
1522 | { | |
1523 | Module *m = mods->fetch (i1); | |
1524 | Dprintf (DEBUG_STABS, NTXT (" MOD: %s\n"), STR (m->get_name ())); | |
1525 | if (dbe_strcmp (bname, get_basename (m->get_name ())) == 0) | |
1526 | { | |
1527 | mod->indexStabsLink = m; | |
1528 | m->indexStabsLink = mod; | |
1529 | break; | |
1530 | } | |
1531 | } | |
1532 | if (mod->indexStabsLink) | |
1533 | { | |
1534 | mod->dot_o_file->objStabs->openDwarf ()->srcline_Dwarf (mod->indexStabsLink); | |
1535 | Map<const char*, Symbol*> *elfSymbols = get_elf_symbols (); | |
1536 | Vector<Function*> *funcs = mod->indexStabsLink->functions; | |
1537 | for (int i1 = 0, sz1 = funcs ? funcs->size () : 0; i1 < sz1; i1++) | |
1538 | { | |
1539 | Function *f1 = funcs->fetch (i1); | |
1540 | Symbol *sym = elfSymbols->get (f1->get_mangled_name ()); | |
1541 | if (sym == NULL) | |
1542 | continue; | |
1543 | Dprintf (DEBUG_STABS, NTXT (" Symbol: %s func=%p\n"), STR (sym->name), sym->func); | |
1544 | Function *f = sym->func; | |
1545 | if (f->indexStabsLink) | |
1546 | continue; | |
1547 | f->indexStabsLink = f1; | |
1548 | f1->indexStabsLink = f; | |
1549 | f->copy_PCInfo (f1); | |
1550 | } | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | Stabs::Stab_status | |
1555 | Stabs::read_archive (LoadObject *lo) | |
1556 | { | |
1557 | if (openElf (true) == NULL) | |
1558 | return status; | |
1559 | check_Symtab (); | |
1560 | if (elfDbg->dwarf) | |
1561 | openDwarf ()->archive_Dwarf (lo); | |
1562 | ||
1563 | // get Module/Function lists from stabs info | |
1564 | Stab_status statusStabs = DBGD_ERR_NO_STABS; | |
1565 | #define ARCHIVE_STABS(sec, secStr, comdat) \ | |
1566 | if ((elfDbg->sec) != 0 && (elfDbg->secStr) != 0 && \ | |
1567 | archive_Stabs(lo, elfDbg->sec, elfDbg->secStr, comdat) == DBGD_ERR_NONE) \ | |
1568 | statusStabs = DBGD_ERR_NONE | |
1569 | ||
1570 | // prefer index stabs (where they exist) since they're most appropriate | |
1571 | // for loadobjects and might have N_CPROF stabs for ABS/CPF | |
1572 | ARCHIVE_STABS (stabIndex, stabIndexStr, true); | |
1573 | ARCHIVE_STABS (stabExcl, stabExclStr, false); | |
1574 | ARCHIVE_STABS (stab, stabStr, false); | |
1575 | ||
1576 | // Add all unassigned functions to the <unknown> module | |
1577 | Symbol *sitem, *alias; | |
1578 | int index; | |
1579 | Vec_loop (Symbol*, SymLst, index, sitem) | |
1580 | { | |
1581 | if (sitem->func || (sitem->size == 0) || (sitem->flags & SYM_UNDEF)) | |
1582 | continue; | |
1583 | alias = sitem->alias; | |
1584 | if (alias) | |
1585 | { | |
1586 | if (alias->func == NULL) | |
1587 | { | |
1588 | alias->func = createFunction (lo, lo->noname, alias); | |
1589 | alias->func->alias = alias->func; | |
1590 | } | |
1591 | if (alias != sitem) | |
1592 | { | |
1593 | sitem->func = createFunction (lo, alias->func->module, sitem); | |
1594 | sitem->func->alias = alias->func; | |
1595 | } | |
1596 | } | |
1597 | else | |
1598 | sitem->func = createFunction (lo, lo->noname, sitem); | |
1599 | } | |
1600 | if (pltSym) | |
1601 | { | |
1602 | pltSym->func = createFunction (lo, lo->noname, pltSym); | |
1603 | pltSym->func->flags |= FUNC_FLAG_PLT; | |
1604 | } | |
1605 | ||
1606 | // need Module association, so this must be done after handling Modules | |
1607 | check_AnalyzerInfo (); | |
1608 | ||
1609 | if (dwarf && dwarf->status == DBGD_ERR_NONE) | |
1610 | return DBGD_ERR_NONE; | |
1611 | return statusStabs; | |
1612 | }//read_archive | |
1613 | ||
1614 | Function * | |
1615 | Stabs::createFunction (LoadObject *lo, Module *module, Symbol *sym) | |
1616 | { | |
1617 | Function *func = dbeSession->createFunction (); | |
1618 | func->module = module; | |
1619 | func->img_fname = path; | |
7434de7e | 1620 | func->img_offset = sym->img_offset; |
bb368aad | 1621 | func->save_addr = sym->save; |
7434de7e | 1622 | func->size = sym->size; |
bb368aad VM |
1623 | func->set_name (sym->name); |
1624 | func->elfSym = sym; | |
1625 | module->functions->append (func); | |
1626 | lo->functions->append (func); | |
1627 | return func; | |
1628 | } | |
1629 | ||
1630 | void | |
1631 | Stabs::fixSymtabAlias () | |
1632 | { | |
1633 | int ind, i, k; | |
1634 | Symbol *sym, *bestAlias; | |
1635 | SymLst->sort (SymImgOffsetCmp); | |
1636 | ind = SymLst->size () - 1; | |
1637 | for (i = 0; i < ind; i++) | |
1638 | { | |
1639 | bestAlias = SymLst->fetch (i); | |
1640 | if (bestAlias->img_offset == 0) // Ignore this bad symbol | |
1641 | continue; | |
1642 | sym = SymLst->fetch (i + 1); | |
1643 | if (bestAlias->img_offset != sym->img_offset) | |
1644 | { | |
1645 | if ((bestAlias->size == 0) || | |
1646 | (sym->img_offset < bestAlias->img_offset + bestAlias->size)) | |
1647 | bestAlias->size = sym->img_offset - bestAlias->img_offset; | |
1648 | continue; | |
1649 | } | |
1650 | ||
1651 | // Find a "best" alias | |
1652 | size_t bestLen = strlen (bestAlias->name); | |
1653 | int64_t maxSize = bestAlias->size; | |
1654 | for (k = i + 1; k <= ind; k++) | |
1655 | { | |
1656 | sym = SymLst->fetch (k); | |
1657 | if (bestAlias->img_offset != sym->img_offset) | |
1658 | { // no more aliases | |
1659 | if ((maxSize == 0) || | |
1660 | (sym->img_offset < bestAlias->img_offset + maxSize)) | |
1661 | maxSize = sym->img_offset - bestAlias->img_offset; | |
1662 | break; | |
1663 | } | |
1664 | if (maxSize < sym->size) | |
1665 | maxSize = sym->size; | |
1666 | size_t len = strlen (sym->name); | |
1667 | if (len < bestLen) | |
1668 | { | |
1669 | bestAlias = sym; | |
1670 | bestLen = len; | |
1671 | } | |
1672 | } | |
1673 | for (; i < k; i++) | |
1674 | { | |
1675 | sym = SymLst->fetch (i); | |
1676 | sym->alias = bestAlias; | |
1677 | sym->size = maxSize; | |
1678 | } | |
1679 | i--; | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | void | |
1684 | Stabs::check_Symtab () | |
1685 | { | |
1686 | if (st_check_symtab) | |
1687 | return; | |
1688 | st_check_symtab = true; | |
1689 | ||
1690 | Elf *elf = openElf (true); | |
1691 | if (elf == NULL) | |
1692 | return; | |
7434de7e | 1693 | if (elf->plt != 0) |
bb368aad | 1694 | { |
7434de7e | 1695 | Elf_Internal_Shdr *shdr = elf->get_shdr (elf->plt); |
bb368aad VM |
1696 | if (shdr) |
1697 | { | |
7434de7e | 1698 | pltSym = new Symbol (SymLst); |
bb368aad VM |
1699 | pltSym->value = shdr->sh_addr; |
1700 | pltSym->size = shdr->sh_size; | |
1701 | pltSym->img_offset = shdr->sh_offset; | |
1702 | pltSym->name = dbe_strdup (NTXT ("@plt")); | |
1703 | pltSym->flags |= SYM_PLT; | |
1704 | } | |
1705 | } | |
1706 | if (elf->symtab) | |
1707 | readSymSec (elf->symtab, elf); | |
1708 | else | |
1709 | { | |
1710 | readSymSec (elf->SUNW_ldynsym, elf); | |
1711 | readSymSec (elf->dynsym, elf); | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | void | |
1716 | Stabs::readSymSec (unsigned int sec, Elf *elf) | |
1717 | { | |
1718 | Symbol *sitem; | |
1719 | Sp_lang_code local_lcode; | |
1720 | if (sec == 0) | |
1721 | return; | |
1722 | // Get ELF data | |
1723 | Elf_Data *data = elf->elf_getdata (sec); | |
1724 | if (data == NULL) | |
1725 | return; | |
1726 | uint64_t SymtabSize = data->d_size; | |
1727 | Elf_Internal_Shdr *shdr = elf->get_shdr (sec); | |
1728 | ||
1729 | if ((SymtabSize == 0) || (shdr->sh_entsize == 0)) | |
1730 | return; | |
1731 | Elf_Data *data_str = elf->elf_getdata (shdr->sh_link); | |
1732 | if (data_str == NULL) | |
1733 | return; | |
1734 | char *Strtab = (char *) data_str->d_buf; | |
1735 | ||
1736 | // read func symbolic table | |
1737 | for (unsigned int n = 0, tot = SymtabSize / shdr->sh_entsize; n < tot; n++) | |
1738 | { | |
1739 | Elf_Internal_Sym Sym; | |
1740 | elf->elf_getsym (data, n, &Sym); | |
1741 | const char *st_name = Sym.st_name < data_str->d_size ? | |
1742 | (Strtab + Sym.st_name) : NTXT ("no_name"); | |
1743 | switch (GELF_ST_TYPE (Sym.st_info)) | |
1744 | { | |
1745 | case STT_FUNC: | |
7434de7e VM |
1746 | if (Sym.st_size == 0) |
1747 | break; | |
bb368aad VM |
1748 | if (Sym.st_shndx == 0) |
1749 | { | |
1750 | if (Sym.st_value == 0) | |
1751 | break; | |
1752 | sitem = new Symbol (SymLst); | |
1753 | sitem->flags |= SYM_UNDEF; | |
1754 | if (pltSym) | |
7434de7e VM |
1755 | sitem->img_offset = pltSym->img_offset + |
1756 | Sym.st_value - pltSym->value; | |
bb368aad VM |
1757 | } |
1758 | else | |
1759 | { | |
1760 | Elf_Internal_Shdr *shdrp = elfDis->get_shdr (Sym.st_shndx); | |
1761 | if (shdrp == NULL) | |
1762 | break; | |
1763 | sitem = new Symbol (SymLst); | |
7434de7e VM |
1764 | sitem->img_offset = shdrp->sh_offset + |
1765 | Sym.st_value - shdrp->sh_addr; | |
bb368aad VM |
1766 | } |
1767 | sitem->size = Sym.st_size; | |
1768 | sitem->name = dbe_strdup (st_name); | |
1769 | sitem->value = is_relocatable () ? sitem->img_offset : Sym.st_value; | |
1770 | if (GELF_ST_BIND (Sym.st_info) == STB_LOCAL) | |
1771 | { | |
1772 | sitem->local_ind = LocalFile->size () - 1; | |
1773 | LocalLst->append (sitem); | |
1774 | } | |
1775 | break; | |
1776 | case STT_NOTYPE: | |
1777 | if (streq (st_name, NTXT ("gcc2_compiled."))) | |
1778 | { | |
1779 | sitem = new Symbol (SymLst); | |
1780 | sitem->lang_code = Sp_lang_gcc; | |
1781 | sitem->name = dbe_strdup (st_name); | |
1782 | sitem->local_ind = LocalFile->size () - 1; | |
1783 | LocalLst->append (sitem); | |
1784 | } | |
1785 | break; | |
1786 | case STT_OBJECT: | |
1787 | if (!strncmp (st_name, NTXT ("__KAI_KPTS_"), 11)) | |
1788 | local_lcode = Sp_lang_KAI_KPTS; | |
1789 | else if (!strncmp (st_name, NTXT ("__KAI_KCC_"), 10)) | |
1790 | local_lcode = Sp_lang_KAI_KCC; | |
1791 | else if (!strncmp (st_name, NTXT ("__KAI_Kcc_"), 10)) | |
1792 | local_lcode = Sp_lang_KAI_Kcc; | |
1793 | else | |
1794 | break; | |
1795 | sitem = new Symbol (LocalLst); | |
1796 | sitem->lang_code = local_lcode; | |
1797 | sitem->name = dbe_strdup (st_name); | |
1798 | break; | |
1799 | case STT_FILE: | |
1800 | { | |
1801 | int last = LocalFile->size () - 1; | |
1802 | if (last >= 0 && LocalFileIdx->fetch (last) == LocalLst->size ()) | |
1803 | { | |
1804 | // There were no local functions in the latest file. | |
1805 | free (LocalFile->get (last)); | |
1806 | LocalFile->store (last, dbe_strdup (st_name)); | |
1807 | } | |
1808 | else | |
1809 | { | |
1810 | LocalFile->append (dbe_strdup (st_name)); | |
1811 | LocalFileIdx->append (LocalLst->size ()); | |
1812 | } | |
1813 | break; | |
1814 | } | |
1815 | } | |
1816 | } | |
1817 | fixSymtabAlias (); | |
1818 | SymLst->sort (SymValueCmp); | |
1819 | get_save_addr (elf->need_swap_endian); | |
1820 | dump (); | |
1821 | }//check_Symtab | |
1822 | ||
1823 | void | |
1824 | Stabs::check_Relocs () | |
1825 | { | |
1826 | // We may have many relocation tables to process: .rela.text%foo, | |
1827 | // rela.text%bar, etc. On Intel, compilers generate .rel.text sections | |
1828 | // which have to be processed as well. A lot of rework is needed here. | |
1829 | Symbol *sptr = NULL; | |
1830 | if (st_check_relocs) | |
1831 | return; | |
1832 | st_check_relocs = true; | |
1833 | ||
1834 | Elf *elf = openElf (false); | |
1835 | if (elf == NULL) | |
1836 | return; | |
1837 | for (unsigned int sec = 1; sec < elf->elf_getehdr ()->e_shnum; sec++) | |
1838 | { | |
1839 | bool use_rela, use_PLT; | |
1840 | char *name = elf->get_sec_name (sec); | |
1841 | if (name == NULL) | |
1842 | continue; | |
1843 | if (strncmp (name, NTXT (".rela.text"), 10) == 0) | |
1844 | { | |
1845 | use_rela = true; | |
1846 | use_PLT = false; | |
1847 | } | |
1848 | else if (streq (name, NTXT (".rela.plt"))) | |
1849 | { | |
1850 | use_rela = true; | |
1851 | use_PLT = true; | |
1852 | } | |
1853 | else if (strncmp (name, NTXT (".rel.text"), 9) == 0) | |
1854 | { | |
1855 | use_rela = false; | |
1856 | use_PLT = false; | |
1857 | } | |
1858 | else if (streq (name, NTXT (".rel.plt"))) | |
1859 | { | |
1860 | use_rela = false; | |
1861 | use_PLT = true; | |
1862 | } | |
1863 | else | |
1864 | continue; | |
1865 | ||
1866 | Elf_Internal_Shdr *shdr = elf->get_shdr (sec); | |
1867 | if (shdr == NULL) | |
1868 | continue; | |
1869 | ||
1870 | // Get ELF data | |
1871 | Elf_Data *data = elf->elf_getdata (sec); | |
1872 | if (data == NULL) | |
1873 | continue; | |
1874 | uint64_t ScnSize = data->d_size; | |
1875 | uint64_t EntSize = shdr->sh_entsize; | |
1876 | if ((ScnSize == 0) || (EntSize == 0)) | |
1877 | continue; | |
1878 | int tot = (int) (ScnSize / EntSize); | |
1879 | ||
1880 | // Get corresponding text section | |
1881 | Elf_Internal_Shdr *shdr_txt = elf->get_shdr (shdr->sh_info); | |
1882 | if (shdr_txt == NULL) | |
1883 | continue; | |
1884 | if (!(shdr_txt->sh_flags & SHF_EXECINSTR)) | |
7434de7e | 1885 | continue; |
bb368aad VM |
1886 | |
1887 | // Get corresponding symbol table section | |
1888 | Elf_Internal_Shdr *shdr_sym = elf->get_shdr (shdr->sh_link); | |
1889 | if (shdr_sym == NULL) | |
1890 | continue; | |
1891 | Elf_Data *data_sym = elf->elf_getdata (shdr->sh_link); | |
1892 | ||
1893 | // Get corresponding string table section | |
1894 | Elf_Data *data_str = elf->elf_getdata (shdr_sym->sh_link); | |
1895 | if (data_str == NULL) | |
1896 | continue; | |
1897 | char *Strtab = (char*) data_str->d_buf; | |
1898 | for (int n = 0; n < tot; n++) | |
1899 | { | |
1900 | Elf_Internal_Sym sym; | |
1901 | Elf_Internal_Rela rela; | |
1902 | char *symName; | |
1903 | if (use_rela) | |
1904 | elf->elf_getrela (data, n, &rela); | |
1905 | else | |
1906 | { | |
1907 | // GElf_Rela is extended GElf_Rel | |
1908 | elf->elf_getrel (data, n, &rela); | |
1909 | rela.r_addend = 0; | |
1910 | } | |
1911 | ||
1912 | int ndx = (int) GELF_R_SYM (rela.r_info); | |
1913 | elf->elf_getsym (data_sym, ndx, &sym); | |
1914 | switch (GELF_ST_TYPE (sym.st_info)) | |
1915 | { | |
1916 | case STT_FUNC: | |
1917 | case STT_OBJECT: | |
1918 | case STT_NOTYPE: | |
1919 | if (sym.st_name == 0 || sym.st_name >= data_str->d_size) | |
1920 | continue; | |
1921 | symName = Strtab + sym.st_name; | |
1922 | break; | |
1923 | case STT_SECTION: | |
1924 | { | |
1925 | Elf_Internal_Shdr *secHdr = elf->get_shdr (sym.st_shndx); | |
1926 | if (secHdr == NULL) | |
1927 | continue; | |
1928 | if (sptr == NULL) | |
1929 | sptr = new Symbol; | |
1930 | sptr->value = secHdr->sh_offset + rela.r_addend; | |
1931 | long index = SymLst->bisearch (0, -1, &sptr, SymFindCmp); | |
1932 | if (index == -1) | |
1933 | continue; | |
1934 | Symbol *sp = SymLst->fetch (index); | |
1935 | if (sptr->value != sp->value) | |
1936 | continue; | |
1937 | symName = sp->name; | |
1938 | break; | |
1939 | } | |
1940 | default: | |
1941 | continue; | |
1942 | } | |
1943 | Reloc *reloc = new Reloc; | |
1944 | reloc->name = dbe_strdup (symName); | |
1945 | reloc->type = GELF_R_TYPE (rela.r_info); | |
1946 | reloc->value = use_PLT ? rela.r_offset | |
1947 | : rela.r_offset + shdr_txt->sh_offset; | |
1948 | reloc->addend = rela.r_addend; | |
1949 | if (use_PLT) | |
1950 | RelPLTLst->append (reloc); | |
1951 | else | |
1952 | RelLst->append (reloc); | |
1953 | } | |
1954 | } | |
1955 | delete sptr; | |
1956 | RelLst->sort (RelValueCmp); | |
1957 | } //check_Relocs | |
1958 | ||
1959 | void | |
1960 | Stabs::get_save_addr (bool need_swap_endian) | |
1961 | { | |
1962 | if (elfDis->is_Intel ()) | |
1963 | { | |
1964 | for (int j = 0, sz = SymLst ? SymLst->size () : 0; j < sz; j++) | |
1965 | { | |
1966 | Symbol *sitem = SymLst->fetch (j); | |
1967 | sitem->save = 0; | |
1968 | } | |
1969 | return; | |
1970 | } | |
1971 | for (int j = 0, sz = SymLst ? SymLst->size () : 0; j < sz; j++) | |
1972 | { | |
1973 | Symbol *sitem = SymLst->fetch (j); | |
1974 | sitem->save = FUNC_NO_SAVE; | |
1975 | ||
1976 | // If an image offset is not known skip it. | |
1977 | // Works for artificial symbols like '@plt' as well. | |
1978 | if (sitem->img_offset == 0) | |
1979 | continue; | |
1980 | ||
1981 | bool is_o7_moved = false; | |
1982 | int64_t off = sitem->img_offset; | |
1983 | for (int i = 0; i < sitem->size; i += 4) | |
1984 | { | |
1985 | unsigned int cmd; | |
1986 | if (elfDis->get_data (off, sizeof (cmd), &cmd) == NULL) | |
1987 | break; | |
1988 | if (need_swap_endian) | |
1989 | SWAP_ENDIAN (cmd); | |
1990 | off += sizeof (cmd); | |
1991 | if ((cmd & 0xffffc000) == 0x9de38000) | |
1992 | { // save %sp, ??, %sp | |
1993 | sitem->save = i; | |
1994 | break; | |
1995 | } | |
1996 | else if ((cmd & 0xc0000000) == 0x40000000 || // call ?? | |
1997 | (cmd & 0xfff80000) == 0xbfc00000) | |
1998 | { // jmpl ??, %o7 | |
1999 | if (!is_o7_moved) | |
2000 | { | |
2001 | sitem->save = FUNC_ROOT; | |
2002 | break; | |
2003 | } | |
2004 | } | |
2005 | else if ((cmd & 0xc1ffe01f) == 0x8010000f) // or %g0,%o7,?? | |
2006 | is_o7_moved = true; | |
2007 | } | |
2008 | } | |
2009 | } | |
2010 | ||
2011 | uint64_t | |
2012 | Stabs::mapOffsetToAddress (uint64_t img_offset) | |
2013 | { | |
2014 | Elf *elf = openElf (false); | |
2015 | if (elf == NULL) | |
2016 | return 0; | |
2017 | if (is_relocatable ()) | |
2018 | return img_offset; | |
2019 | for (unsigned int sec = 1; sec < elf->elf_getehdr ()->e_shnum; sec++) | |
2020 | { | |
2021 | Elf_Internal_Shdr *shdr = elf->get_shdr (sec); | |
2022 | if (shdr == NULL) | |
2023 | continue; | |
2024 | if (img_offset >= (uint64_t) shdr->sh_offset | |
2025 | && img_offset < (uint64_t) (shdr->sh_offset + shdr->sh_size)) | |
2026 | return shdr->sh_addr + (img_offset - shdr->sh_offset); | |
2027 | } | |
2028 | return 0; | |
2029 | } | |
2030 | ||
2031 | Stabs::Stab_status | |
2032 | Stabs::archive_Stabs (LoadObject *lo, unsigned int StabSec, | |
2033 | unsigned int StabStrSec, bool comdat) | |
2034 | { | |
2035 | StabReader *stabReader = new StabReader (openElf (true), platform, StabSec, StabStrSec); | |
2036 | int tot = stabReader->stabCnt; | |
2037 | if (tot < 0) | |
2038 | { | |
2039 | delete stabReader; | |
2040 | return DBGD_ERR_NO_STABS; | |
2041 | } | |
2042 | ||
2043 | char *sbase = NTXT (""), *arg, *fname, sname[2 * MAXPATHLEN]; | |
2044 | int lastMod, phase, stabs_level, modCnt = 0; | |
2045 | Function *func = NULL; | |
2046 | Module *mod; | |
2047 | #define INIT_MOD phase = 0; stabs_level = 0; *sname = '\0'; mod = NULL | |
2048 | ||
2049 | bool updateStabsMod = false; | |
2050 | if (comdat && ((elfDbg->elf_getehdr ()->e_type == ET_EXEC) || (elfDbg->elf_getehdr ()->e_type == ET_DYN))) | |
2051 | { | |
2052 | if (stabsModules == NULL) | |
2053 | stabsModules = new Vector<Module*>(); | |
2054 | updateStabsMod = true; | |
2055 | } | |
2056 | INIT_MOD; | |
2057 | lastMod = lo->seg_modules->size (); | |
2058 | ||
2059 | for (int n = 0; n < tot; n++) | |
2060 | { | |
2061 | struct stab stb; | |
2062 | char *str = stabReader->get_stab (&stb, comdat); | |
2063 | switch (stb.n_type) | |
2064 | { | |
2065 | case N_FUN: | |
2066 | // Ignore a COMDAT function, if there are two or more modules in 'lo' | |
2067 | if (comdat && stb.n_other == 1 && modCnt > 1) | |
2068 | break; | |
2069 | case N_OUTL: | |
2070 | case N_ALIAS: | |
2071 | case N_ENTRY: | |
2072 | if (mod == NULL || str == NULL | |
2073 | || (stb.n_type != N_ENTRY && stabs_level != 0)) | |
2074 | break; | |
2075 | if (*str == '@') | |
2076 | { | |
2077 | str++; | |
2078 | if (*str == '>' || *str == '<') | |
2079 | str++; | |
2080 | } | |
2081 | ||
2082 | fname = dbe_strdup (str); | |
2083 | arg = strchr (fname, ':'); | |
2084 | if (arg != NULL) | |
2085 | { | |
2086 | if (!strncmp (arg, NTXT (":P"), 2)) | |
2087 | { // just prototype | |
2088 | free (fname); | |
2089 | break; | |
2090 | } | |
2091 | *arg = '\0'; | |
2092 | } | |
2093 | ||
2094 | func = append_Function (mod, fname); | |
2095 | free (fname); | |
2096 | break; | |
2097 | case N_CMDLINE: | |
2098 | if (str && mod) | |
2099 | { | |
2100 | char *comp_flags = strchr (str, ';'); | |
2101 | if (comp_flags) | |
2102 | { | |
2103 | mod->comp_flags = dbe_strdup (comp_flags + 1); | |
2104 | mod->comp_dir = dbe_strndup (str, comp_flags - str); | |
2105 | } | |
2106 | } | |
2107 | break; | |
2108 | case N_LBRAC: | |
2109 | stabs_level++; | |
2110 | break; | |
2111 | case N_RBRAC: | |
2112 | stabs_level--; | |
2113 | break; | |
2114 | case N_UNDF: | |
2115 | INIT_MOD; | |
2116 | break; | |
2117 | case N_ENDM: | |
2118 | INIT_MOD; | |
2119 | break; | |
2120 | case N_OPT: | |
2121 | stabReader->parse_N_OPT (mod, str); | |
2122 | if (mod && (str != NULL) && streq (str, NTXT ("gcc2_compiled."))) | |
2123 | // Is it anachronism ? | |
2124 | mod->lang_code = Sp_lang_gcc; | |
2125 | break; | |
2126 | case N_GSYM: | |
2127 | if (mod && (str != NULL)) | |
2128 | { | |
2129 | if (strncmp (str, NTXT ("__KAI_K"), 7)) | |
2130 | break; | |
2131 | str += 7; | |
2132 | if (!strncmp (str, NTXT ("CC_"), 3)) | |
2133 | mod->lang_code = Sp_lang_KAI_KCC; | |
2134 | else if (!strncmp (str, NTXT ("cc_"), 3)) | |
2135 | mod->lang_code = Sp_lang_KAI_Kcc; | |
2136 | else if (!strncmp (str, NTXT ("PTS_"), 4) && | |
2137 | (mod->lang_code != Sp_lang_KAI_KCC) && | |
2138 | (mod->lang_code != Sp_lang_KAI_Kcc)) | |
2139 | mod->lang_code = Sp_lang_KAI_KPTS; | |
2140 | } | |
2141 | break; | |
2142 | case N_SO: | |
2143 | if (str == NULL || *str == '\0') | |
2144 | { | |
2145 | INIT_MOD; | |
2146 | break; | |
2147 | } | |
2148 | if (phase == 0) | |
2149 | { | |
2150 | phase = 1; | |
2151 | sbase = str; | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | if (*str == '/') | |
2156 | sbase = str; | |
2157 | else | |
2158 | { | |
2159 | size_t last = strlen (sbase); | |
2160 | if (last == 0 || sbase[last - 1] != '/') | |
2161 | snprintf (sname, sizeof (sname), NTXT ("%s/%s"), sbase, str); | |
2162 | else | |
2163 | snprintf (sname, sizeof (sname), NTXT ("%s%s"), sbase, str); | |
2164 | sbase = sname; | |
2165 | } | |
2166 | mod = append_Module (lo, sbase, lastMod); | |
2167 | if (updateStabsMod) | |
2168 | stabsModules->append (mod); | |
2169 | mod->hasStabs = true; | |
2170 | modCnt++; | |
2171 | if ((mod->lang_code != Sp_lang_gcc) && | |
2172 | (mod->lang_code != Sp_lang_KAI_KPTS) && | |
2173 | (mod->lang_code != Sp_lang_KAI_KCC) && | |
2174 | (mod->lang_code != Sp_lang_KAI_Kcc)) | |
2175 | mod->lang_code = (Sp_lang_code) stb.n_desc; | |
2176 | *sname = '\0'; | |
2177 | phase = 0; | |
2178 | } | |
2179 | break; | |
2180 | case N_OBJ: | |
2181 | if (str == NULL) | |
2182 | break; | |
2183 | if (phase == 0) | |
2184 | { | |
2185 | phase = 1; | |
2186 | sbase = str; | |
2187 | } | |
2188 | else | |
2189 | { | |
2190 | if (*str == '/') | |
2191 | sbase = str; | |
2192 | else | |
2193 | { | |
2194 | size_t last = strlen (sbase); | |
2195 | if (last == 0 || sbase[last - 1] != '/') | |
2196 | snprintf (sname, sizeof (sname), NTXT ("%s/%s"), sbase, str); | |
2197 | else | |
2198 | snprintf (sname, sizeof (sname), NTXT ("%s%s"), sbase, str); | |
2199 | sbase = sname; | |
2200 | } | |
2201 | if (mod && (mod->dot_o_file == NULL)) | |
2202 | { | |
2203 | if (strcmp (sbase, NTXT ("/")) == 0) | |
2204 | mod->set_name (dbe_strdup (path)); | |
2205 | else | |
2206 | { | |
2207 | mod->set_name (dbe_strdup (sbase)); | |
2208 | mod->dot_o_file = mod->createLoadObject (sbase); | |
2209 | } | |
2210 | } | |
2211 | *sname = '\0'; | |
2212 | phase = 0; | |
2213 | } | |
2214 | break; | |
2215 | case N_CPROF: | |
2216 | cpf_stabs_t map; | |
2217 | Dprintf (DEBUG_STABS, NTXT ("N_CPROF n_desc=%x n_value=0x%04x mod=%s\n"), | |
2218 | stb.n_desc, stb.n_value, (mod == NULL) ? NTXT ("???") : mod->get_name ()); | |
2219 | map.type = stb.n_desc; | |
2220 | map.offset = stb.n_value; | |
2221 | map.module = mod; | |
2222 | analyzerInfoMap.append (map); | |
2223 | break; | |
2224 | } | |
2225 | } | |
2226 | delete stabReader; | |
2227 | return func ? DBGD_ERR_NONE : DBGD_ERR_NO_STABS; | |
2228 | } | |
2229 | ||
2230 | Module * | |
2231 | Stabs::append_Module (LoadObject *lo, char *name, int lastMod) | |
2232 | { | |
2233 | Module *module; | |
2234 | int size; | |
2235 | Symbol *sitem; | |
2236 | ||
2237 | if (lo->seg_modules != NULL) | |
2238 | { | |
2239 | size = lo->seg_modules->size (); | |
2240 | if (size < lastMod) | |
2241 | lastMod = size; | |
2242 | for (int i = 0; i < lastMod; i++) | |
2243 | { | |
2244 | module = lo->seg_modules->fetch (i); | |
2245 | if (module->linkerStabName && streq (module->linkerStabName, name)) | |
2246 | return module; | |
2247 | } | |
2248 | } | |
2249 | module = dbeSession->createModule (lo, NULL); | |
2250 | module->set_file_name (dbe_strdup (name)); | |
2251 | module->linkerStabName = dbe_strdup (module->file_name); | |
2252 | ||
2253 | // Append all functions with 'local_ind == -1' to the module. | |
2254 | if (LocalLst->size () > 0) | |
2255 | { | |
2256 | sitem = LocalLst->fetch (0); | |
2257 | if (!sitem->defined && sitem->local_ind == -1) | |
2258 | // Append all functions with 'local_ind == -1' to the module. | |
2259 | append_local_funcs (module, 0); | |
2260 | } | |
2261 | ||
2262 | // Append local func | |
2263 | char *basename = get_basename (name); | |
2264 | size = LocalFile->size (); | |
2265 | for (int i = 0; i < size; i++) | |
2266 | { | |
2267 | if (streq (basename, LocalFile->fetch (i))) | |
2268 | { | |
2269 | int local_ind = LocalFileIdx->fetch (i); | |
2270 | if (local_ind >= LocalLst->size ()) | |
2271 | break; | |
2272 | sitem = LocalLst->fetch (local_ind); | |
2273 | if (!sitem->defined) | |
2274 | { | |
2275 | append_local_funcs (module, local_ind); | |
2276 | break; | |
2277 | } | |
2278 | } | |
2279 | } | |
2280 | return module; | |
2281 | } | |
2282 | ||
2283 | void | |
2284 | Stabs::append_local_funcs (Module *module, int first_ind) | |
2285 | { | |
2286 | Symbol *sitem = LocalLst->fetch (first_ind); | |
2287 | int local_ind = sitem->local_ind; | |
2288 | int size = LocalLst->size (); | |
2289 | for (int i = first_ind; i < size; i++) | |
2290 | { | |
2291 | sitem = LocalLst->fetch (i); | |
2292 | if (sitem->local_ind != local_ind) | |
2293 | break; | |
2294 | sitem->defined = true; | |
2295 | ||
2296 | // 3rd party compiled. e.g., Gcc or KAI compiled | |
2297 | if (sitem->lang_code != Sp_lang_unknown) | |
2298 | { | |
2299 | if (module->lang_code == Sp_lang_unknown) | |
2300 | module->lang_code = sitem->lang_code; | |
2301 | continue; | |
2302 | } | |
2303 | if (sitem->func) | |
2304 | continue; | |
2305 | Function *func = dbeSession->createFunction (); | |
2306 | sitem->func = func; | |
2307 | func->img_fname = path; | |
7434de7e VM |
2308 | func->img_offset = sitem->img_offset; |
2309 | func->save_addr = sitem->save; | |
2310 | func->size = sitem->size; | |
bb368aad VM |
2311 | func->module = module; |
2312 | func->set_name (sitem->name); | |
2313 | module->functions->append (func); | |
2314 | module->loadobject->functions->append (func); | |
2315 | } | |
2316 | } | |
2317 | ||
2318 | Function * | |
2319 | Stabs::append_Function (Module *module, char *fname) | |
2320 | { | |
2321 | Symbol *sitem, *sptr; | |
2322 | Function *func; | |
2323 | long sid, index; | |
2324 | char *name; | |
2325 | if (SymLstByName == NULL) | |
2326 | { | |
2327 | SymLstByName = SymLst->copy (); | |
2328 | SymLstByName->sort (SymNameCmp); | |
2329 | } | |
2330 | sptr = new Symbol; | |
2331 | if (module->lang_code == N_SO_FORTRAN || module->lang_code == N_SO_FORTRAN90) | |
2332 | { | |
2333 | char *fortran = dbe_sprintf (NTXT ("%s_"), fname); // FORTRAN name | |
2334 | sptr->name = fortran; | |
2335 | sid = SymLstByName->bisearch (0, -1, &sptr, SymNameCmp); | |
2336 | if (sid == -1) | |
2337 | { | |
2338 | free (fortran); | |
2339 | sptr->name = fname; | |
2340 | sid = SymLstByName->bisearch (0, -1, &sptr, SymNameCmp); | |
2341 | } | |
2342 | else | |
2343 | fname = fortran; | |
2344 | } | |
2345 | else | |
2346 | { | |
2347 | sptr->name = fname; | |
2348 | sid = SymLstByName->bisearch (0, -1, &sptr, SymNameCmp); | |
2349 | } | |
2350 | sptr->name = NULL; | |
2351 | delete sptr; | |
2352 | ||
2353 | if (sid == -1) | |
2354 | { | |
2355 | Vec_loop (Symbol*, SymLstByName, index, sitem) | |
2356 | { | |
2357 | if (strncmp (sitem->name, NTXT ("$X"), 2) == 0 | |
2358 | || strncmp (sitem->name, NTXT (".X"), 2) == 0) | |
2359 | { | |
2360 | char *n = strchr (((sitem->name) + 2), (int) '.'); | |
2361 | if (n != NULL) | |
2362 | name = n + 1; | |
2363 | else | |
2364 | name = sitem->name; | |
2365 | } | |
2366 | else | |
2367 | name = sitem->name; | |
2368 | if (name != NULL && fname != NULL && (strcmp (name, fname) == 0)) | |
2369 | { | |
2370 | sid = index; | |
2371 | break; | |
2372 | } | |
2373 | } | |
2374 | } | |
2375 | if (sid != -1) | |
2376 | { | |
2377 | sitem = SymLstByName->fetch (sid); | |
2378 | if (sitem->alias) | |
2379 | sitem = sitem->alias; | |
2380 | if (sitem->func) | |
2381 | return sitem->func; | |
2382 | sitem->func = func = dbeSession->createFunction (); | |
2383 | func->img_fname = path; | |
7434de7e VM |
2384 | func->img_offset = sitem->img_offset; |
2385 | func->save_addr = sitem->save; | |
2386 | func->size = sitem->size; | |
bb368aad VM |
2387 | } |
2388 | else | |
2389 | func = dbeSession->createFunction (); | |
2390 | ||
2391 | func->module = module; | |
2392 | func->set_name (fname); | |
2393 | module->functions->append (func); | |
2394 | module->loadobject->functions->append (func); | |
2395 | return func; | |
2396 | } | |
2397 | ||
2398 | Function * | |
2399 | Stabs::append_Function (Module *module, char *linkerName, uint64_t pc) | |
2400 | { | |
2401 | Dprintf (DEBUG_STABS, NTXT ("Stabs::append_Function: module=%s linkerName=%s pc=0x%llx\n"), | |
2402 | STR (module->get_name ()), STR (linkerName), (unsigned long long) pc); | |
2403 | long i; | |
2404 | Symbol *sitem = NULL, *sp; | |
2405 | Function *func; | |
2406 | sp = new Symbol; | |
2407 | if (pc) | |
2408 | { | |
2409 | sp->value = pc; | |
2410 | i = SymLst->bisearch (0, -1, &sp, SymFindCmp); | |
2411 | if (i != -1) | |
2412 | sitem = SymLst->fetch (i); | |
2413 | } | |
2414 | ||
2415 | if (!sitem && linkerName) | |
2416 | { | |
2417 | if (SymLstByName == NULL) | |
2418 | { | |
2419 | SymLstByName = SymLst->copy (); | |
2420 | SymLstByName->sort (SymNameCmp); | |
2421 | } | |
2422 | sp->name = linkerName; | |
2423 | i = SymLstByName->bisearch (0, -1, &sp, SymNameCmp); | |
2424 | sp->name = NULL; | |
2425 | if (i != -1) | |
2426 | sitem = SymLstByName->fetch (i); | |
2427 | } | |
2428 | delete sp; | |
2429 | ||
2430 | if (!sitem) | |
2431 | return NULL; | |
2432 | if (sitem->alias) | |
2433 | sitem = sitem->alias; | |
2434 | if (sitem->func) | |
2435 | return sitem->func; | |
2436 | ||
2437 | sitem->func = func = dbeSession->createFunction (); | |
2438 | func->img_fname = path; | |
7434de7e VM |
2439 | func->img_offset = sitem->img_offset; |
2440 | func->save_addr = sitem->save; | |
2441 | func->size = sitem->size; | |
bb368aad VM |
2442 | func->module = module; |
2443 | func->set_name (sitem->name); //XXXX ?? Now call it to set obj->name | |
2444 | module->functions->append (func); | |
2445 | module->loadobject->functions->append (func); | |
2446 | return func; | |
2447 | }// Stabs::append_Function | |
2448 | ||
2449 | Dwarf * | |
2450 | Stabs::openDwarf () | |
2451 | { | |
2452 | if (dwarf == NULL) | |
2453 | { | |
2454 | dwarf = new Dwarf (this); | |
2455 | check_Symtab (); | |
2456 | } | |
2457 | return dwarf; | |
2458 | } | |
2459 | ||
2460 | void | |
2461 | Stabs::read_hwcprof_info (Module *module) | |
2462 | { | |
2463 | openDwarf ()->read_hwcprof_info (module); | |
2464 | } | |
2465 | ||
2466 | void | |
2467 | Stabs::dump () | |
2468 | { | |
2469 | if (!DUMP_ELF_SYM) | |
2470 | return; | |
2471 | printf (NTXT ("\n======= Stabs::dump: %s =========\n"), path ? path : NTXT ("NULL")); | |
2472 | int i, sz; | |
2473 | if (LocalFile) | |
2474 | { | |
2475 | sz = LocalFile->size (); | |
2476 | for (i = 0; i < sz; i++) | |
2477 | printf (" %3d: %5d '%s'\n", i, LocalFileIdx->fetch (i), | |
2478 | LocalFile->fetch (i)); | |
2479 | } | |
2480 | Symbol::dump (SymLst, NTXT ("SymLst")); | |
2481 | Symbol::dump (LocalLst, NTXT ("LocalLst")); | |
2482 | printf (NTXT ("\n===== END of Stabs::dump: %s =========\n\n"), | |
2483 | path ? path : NTXT ("NULL")); | |
2484 | } | |
2485 | ||
2486 | /////////////////////////////////////////////////////////////////////////////// | |
2487 | // Class Include | |
2488 | Include::Include () | |
2489 | { | |
2490 | stack = new Vector<SrcFileInfo*>; | |
2491 | } | |
2492 | ||
2493 | Include::~Include () | |
2494 | { | |
2495 | Destroy (stack); | |
2496 | } | |
2497 | ||
2498 | void | |
2499 | Include::new_src_file (SourceFile *source, int lineno, Function *func) | |
2500 | { | |
2501 | for (int index = stack->size () - 1; index >= 0; index--) | |
2502 | { | |
2503 | if (source == stack->fetch (index)->srcfile) | |
2504 | { | |
2505 | for (int i = stack->size () - 1; i > index; i--) | |
2506 | { | |
2507 | delete stack->remove (i); | |
2508 | if (func && func->line_first > 0) | |
2509 | func->popSrcFile (); | |
2510 | } | |
2511 | return; | |
2512 | } | |
2513 | } | |
2514 | if (func && func->line_first > 0) | |
2515 | func->pushSrcFile (source, lineno); | |
2516 | ||
2517 | SrcFileInfo *sfinfo = new SrcFileInfo; | |
2518 | sfinfo->srcfile = source; | |
2519 | sfinfo->lineno = lineno; | |
2520 | stack->append (sfinfo); | |
2521 | } | |
2522 | ||
2523 | void | |
2524 | Include::push_src_files (Function *func) | |
2525 | { | |
2526 | int index; | |
2527 | SrcFileInfo *sfinfo; | |
2528 | ||
2529 | if (func->line_first <= 0 && stack->size () > 0) | |
2530 | { | |
2531 | sfinfo = stack->fetch (stack->size () - 1); | |
2532 | func->setDefSrc (sfinfo->srcfile); | |
2533 | } | |
2534 | Vec_loop (SrcFileInfo*, stack, index, sfinfo) | |
2535 | { | |
2536 | func->pushSrcFile (sfinfo->srcfile, sfinfo->lineno); | |
2537 | } | |
2538 | } | |
2539 | ||
2540 | void | |
2541 | Include::new_include_file (SourceFile *source, Function *func) | |
2542 | { | |
2543 | if (stack->size () == 1 && stack->fetch (0)->srcfile == source) | |
2544 | // workaroud for gcc; gcc creates 'N_BINCL' stab for main source | |
2545 | return; | |
2546 | if (func && func->line_first > 0) | |
2547 | func->pushSrcFile (source, 0); | |
2548 | ||
2549 | SrcFileInfo *sfinfo = new SrcFileInfo; | |
2550 | sfinfo->srcfile = source; | |
2551 | sfinfo->lineno = 0; | |
2552 | stack->append (sfinfo); | |
2553 | } | |
2554 | ||
2555 | void | |
2556 | Include::end_include_file (Function *func) | |
2557 | { | |
2558 | int index = stack->size () - 1; | |
2559 | if (index > 0) | |
2560 | { | |
2561 | delete stack->remove (index); | |
2562 | if (func && func->line_first > 0) | |
2563 | func->popSrcFile (); | |
2564 | } | |
2565 | } | |
2566 | ||
2567 | #define RET_S(x) if (t == x) return (char *) #x | |
2568 | char * | |
2569 | StabReader::get_type_name (int t) | |
2570 | { | |
2571 | RET_S (N_UNDF); | |
2572 | RET_S (N_ABS); | |
2573 | RET_S (N_TEXT); | |
2574 | RET_S (N_DATA); | |
2575 | RET_S (N_BSS); | |
2576 | RET_S (N_COMM); | |
2577 | RET_S (N_FN); | |
2578 | RET_S (N_EXT); | |
2579 | RET_S (N_TYPE); | |
2580 | RET_S (N_GSYM); | |
2581 | RET_S (N_FNAME); | |
2582 | RET_S (N_FUN); | |
2583 | RET_S (N_OUTL); | |
2584 | RET_S (N_STSYM); | |
2585 | RET_S (N_TSTSYM); | |
2586 | RET_S (N_LCSYM); | |
2587 | RET_S (N_TLCSYM); | |
2588 | RET_S (N_MAIN); | |
2589 | RET_S (N_ROSYM); | |
2590 | RET_S (N_FLSYM); | |
2591 | RET_S (N_TFLSYM); | |
2592 | RET_S (N_PC); | |
2593 | RET_S (N_CMDLINE); | |
2594 | RET_S (N_OBJ); | |
2595 | RET_S (N_OPT); | |
2596 | RET_S (N_RSYM); | |
2597 | RET_S (N_SLINE); | |
2598 | RET_S (N_XLINE); | |
2599 | RET_S (N_ILDPAD); | |
2600 | RET_S (N_SSYM); | |
2601 | RET_S (N_ENDM); | |
2602 | RET_S (N_SO); | |
2603 | RET_S (N_MOD); | |
2604 | RET_S (N_EMOD); | |
2605 | RET_S (N_READ_MOD); | |
2606 | RET_S (N_ALIAS); | |
2607 | RET_S (N_LSYM); | |
2608 | RET_S (N_BINCL); | |
2609 | RET_S (N_SOL); | |
2610 | RET_S (N_PSYM); | |
2611 | RET_S (N_EINCL); | |
2612 | RET_S (N_ENTRY); | |
2613 | RET_S (N_SINCL); | |
2614 | RET_S (N_LBRAC); | |
2615 | RET_S (N_EXCL); | |
2616 | RET_S (N_USING); | |
2617 | RET_S (N_ISYM); | |
2618 | RET_S (N_ESYM); | |
2619 | RET_S (N_PATCH); | |
2620 | RET_S (N_CONSTRUCT); | |
2621 | RET_S (N_DESTRUCT); | |
2622 | RET_S (N_CODETAG); | |
2623 | RET_S (N_FUN_CHILD); | |
2624 | RET_S (N_RBRAC); | |
2625 | RET_S (N_BCOMM); | |
2626 | RET_S (N_TCOMM); | |
2627 | RET_S (N_ECOMM); | |
2628 | RET_S (N_XCOMM); | |
2629 | RET_S (N_ECOML); | |
2630 | RET_S (N_WITH); | |
2631 | RET_S (N_LENG); | |
2632 | RET_S (N_CPROF); | |
2633 | RET_S (N_BROWS); | |
2634 | RET_S (N_FUN_PURE); | |
2635 | RET_S (N_FUN_ELEMENTAL); | |
2636 | RET_S (N_FUN_RECURSIVE); | |
2637 | RET_S (N_FUN_AMD64_PARMDUMP); | |
2638 | RET_S (N_SYM_OMP_TLS); | |
2639 | RET_S (N_SO_AS); | |
2640 | RET_S (N_SO_C); | |
2641 | RET_S (N_SO_ANSI_C); | |
2642 | RET_S (N_SO_CC); | |
2643 | RET_S (N_SO_FORTRAN); | |
2644 | RET_S (N_SO_FORTRAN77); | |
2645 | RET_S (N_SO_PASCAL); | |
2646 | RET_S (N_SO_FORTRAN90); | |
2647 | RET_S (N_SO_JAVA); | |
2648 | RET_S (N_SO_C99); | |
2649 | return NULL; | |
2650 | } |