2 * File elf.c - processing of ELF files
4 * Copyright (C) 1996, Eric Youngdale.
5 * 1999-2007 Eric Pouech
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 2.1 of the License, or (at your option) any later version.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/port.h"
25 #if defined(__svr4__) || defined(__sun)
27 /* large files are not supported by libelf */
28 #undef _FILE_OFFSET_BITS
29 #define _FILE_OFFSET_BITS 32
35 #ifdef HAVE_SYS_STAT_H
36 # include <sys/stat.h>
39 #ifdef HAVE_SYS_MMAN_H
46 #define PATH_MAX MAX_PATH
49 #include "dbghelp_private.h"
51 #include "image_private.h"
53 #include "wine/library.h"
54 #include "wine/debug.h"
58 #define ELF_INFO_DEBUG_HEADER 0x0001
59 #define ELF_INFO_MODULE 0x0002
60 #define ELF_INFO_NAME 0x0004
62 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp
);
66 unsigned flags
; /* IN one (or several) of the ELF_INFO constants */
67 DWORD_PTR dbg_hdr_addr
; /* OUT address of debug header (if ELF_INFO_DEBUG_HEADER is set) */
68 struct module
* module
; /* OUT loaded module (if ELF_INFO_MODULE is set) */
69 const WCHAR
* module_name
; /* OUT found module name (if ELF_INFO_NAME is set) */
74 struct hash_table_elt ht_elt
;
76 struct symt_compiland
* compiland
;
83 THUNK_ORDINAL ordinal
;
84 unsigned long rva_start
;
85 unsigned long rva_end
;
88 struct elf_module_info
90 unsigned long elf_addr
;
91 unsigned short elf_mark
: 1,
93 struct image_file_map file_map
;
96 /******************************************************************
99 * Maps a single section into memory from an ELF file
101 const char* elf_map_section(struct image_section_map
* ism
)
103 struct elf_file_map
* fmap
= &ism
->fmap
->u
.elf
;
105 unsigned pgsz
= getpagesize();
108 assert(ism
->fmap
->modtype
== DMT_ELF
);
109 if (ism
->sidx
< 0 || ism
->sidx
>= ism
->fmap
->u
.elf
.elfhdr
.e_shnum
||
110 fmap
->sect
[ism
->sidx
].shdr
.sh_type
== SHT_NOBITS
)
113 /* align required information on page size (we assume pagesize is a power of 2) */
114 ofst
= fmap
->sect
[ism
->sidx
].shdr
.sh_offset
& ~(pgsz
- 1);
115 size
= ((fmap
->sect
[ism
->sidx
].shdr
.sh_offset
+
116 fmap
->sect
[ism
->sidx
].shdr
.sh_size
+ pgsz
- 1) & ~(pgsz
- 1)) - ofst
;
117 fmap
->sect
[ism
->sidx
].mapped
= mmap(NULL
, size
, PROT_READ
, MAP_PRIVATE
,
119 if (fmap
->sect
[ism
->sidx
].mapped
== IMAGE_NO_MAP
) return IMAGE_NO_MAP
;
120 return fmap
->sect
[ism
->sidx
].mapped
+ (fmap
->sect
[ism
->sidx
].shdr
.sh_offset
& (pgsz
- 1));
123 /******************************************************************
126 * Finds a section by name (and type) into memory from an ELF file
127 * or its alternate if any
129 BOOL
elf_find_section(struct image_file_map
* _fmap
, const char* name
,
130 unsigned sht
, struct image_section_map
* ism
)
132 struct elf_file_map
* fmap
;
137 fmap
= &_fmap
->u
.elf
;
138 if (fmap
->shstrtab
== IMAGE_NO_MAP
)
140 struct image_section_map hdr_ism
= {_fmap
, fmap
->elfhdr
.e_shstrndx
};
141 if ((fmap
->shstrtab
= elf_map_section(&hdr_ism
)) == IMAGE_NO_MAP
) break;
143 for (i
= 0; i
< fmap
->elfhdr
.e_shnum
; i
++)
145 if (strcmp(fmap
->shstrtab
+ fmap
->sect
[i
].shdr
.sh_name
, name
) == 0 &&
146 (sht
== SHT_NULL
|| sht
== fmap
->sect
[i
].shdr
.sh_type
))
153 _fmap
= fmap
->alternate
;
160 /******************************************************************
163 * Unmaps a single section from memory
165 void elf_unmap_section(struct image_section_map
* ism
)
167 struct elf_file_map
* fmap
= &ism
->fmap
->u
.elf
;
169 if (ism
->sidx
>= 0 && ism
->sidx
< fmap
->elfhdr
.e_shnum
&& fmap
->sect
[ism
->sidx
].mapped
!= IMAGE_NO_MAP
)
171 unsigned pgsz
= getpagesize();
174 ofst
= fmap
->sect
[ism
->sidx
].shdr
.sh_offset
& ~(pgsz
- 1);
175 size
= ((fmap
->sect
[ism
->sidx
].shdr
.sh_offset
+
176 fmap
->sect
[ism
->sidx
].shdr
.sh_size
+ pgsz
- 1) & ~(pgsz
- 1)) - ofst
;
177 if (munmap((char*)fmap
->sect
[ism
->sidx
].mapped
, size
) < 0)
178 WARN("Couldn't unmap the section\n");
179 fmap
->sect
[ism
->sidx
].mapped
= IMAGE_NO_MAP
;
183 static void elf_end_find(struct image_file_map
* fmap
)
185 struct image_section_map ism
;
190 ism
.sidx
= fmap
->u
.elf
.elfhdr
.e_shstrndx
;
191 elf_unmap_section(&ism
);
192 fmap
->u
.elf
.shstrtab
= IMAGE_NO_MAP
;
193 fmap
= fmap
->u
.elf
.alternate
;
197 /******************************************************************
200 * Get the RVA of an ELF section
202 DWORD_PTR
elf_get_map_rva(const struct image_section_map
* ism
)
204 if (ism
->sidx
< 0 || ism
->sidx
>= ism
->fmap
->u
.elf
.elfhdr
.e_shnum
)
206 return ism
->fmap
->u
.elf
.sect
[ism
->sidx
].shdr
.sh_addr
- ism
->fmap
->u
.elf
.elf_start
;
209 /******************************************************************
212 * Get the size of an ELF section
214 unsigned elf_get_map_size(const struct image_section_map
* ism
)
216 if (ism
->sidx
< 0 || ism
->sidx
>= ism
->fmap
->u
.elf
.elfhdr
.e_shnum
)
218 return ism
->fmap
->u
.elf
.sect
[ism
->sidx
].shdr
.sh_size
;
221 static inline void elf_reset_file_map(struct image_file_map
* fmap
)
224 fmap
->u
.elf
.shstrtab
= IMAGE_NO_MAP
;
225 fmap
->u
.elf
.alternate
= NULL
;
228 /******************************************************************
231 * Maps an ELF file into memory (and checks it's a real ELF file)
233 static BOOL
elf_map_file(const WCHAR
* filenameW
, struct image_file_map
* fmap
)
235 static const BYTE elf_signature
[4] = { ELFMAG0
, ELFMAG1
, ELFMAG2
, ELFMAG3
};
239 unsigned tmp
, page_mask
= getpagesize() - 1;
244 len
= WideCharToMultiByte(CP_UNIXCP
, 0, filenameW
, -1, NULL
, 0, NULL
, NULL
);
245 if (!(filename
= HeapAlloc(GetProcessHeap(), 0, len
))) return FALSE
;
246 WideCharToMultiByte(CP_UNIXCP
, 0, filenameW
, -1, filename
, len
, NULL
, NULL
);
248 elf_reset_file_map(fmap
);
250 fmap
->modtype
= DMT_ELF
;
251 /* check that the file exists, and that the module hasn't been loaded yet */
252 if (stat(filename
, &statbuf
) == -1 || S_ISDIR(statbuf
.st_mode
)) goto done
;
254 /* Now open the file, so that we can mmap() it. */
255 if ((fmap
->u
.elf
.fd
= open(filename
, O_RDONLY
)) == -1) goto done
;
257 if (read(fmap
->u
.elf
.fd
, &fmap
->u
.elf
.elfhdr
, sizeof(fmap
->u
.elf
.elfhdr
)) != sizeof(fmap
->u
.elf
.elfhdr
))
259 /* and check for an ELF header */
260 if (memcmp(fmap
->u
.elf
.elfhdr
.e_ident
,
261 elf_signature
, sizeof(elf_signature
))) goto done
;
262 /* and check 32 vs 64 size according to current machine */
264 if (fmap
->u
.elf
.elfhdr
.e_ident
[EI_CLASS
] != ELFCLASS64
) goto done
;
266 if (fmap
->u
.elf
.elfhdr
.e_ident
[EI_CLASS
] != ELFCLASS32
) goto done
;
268 fmap
->u
.elf
.sect
= HeapAlloc(GetProcessHeap(), 0,
269 fmap
->u
.elf
.elfhdr
.e_shnum
* sizeof(fmap
->u
.elf
.sect
[0]));
270 if (!fmap
->u
.elf
.sect
) goto done
;
272 lseek(fmap
->u
.elf
.fd
, fmap
->u
.elf
.elfhdr
.e_shoff
, SEEK_SET
);
273 for (i
= 0; i
< fmap
->u
.elf
.elfhdr
.e_shnum
; i
++)
275 if (read(fmap
->u
.elf
.fd
, &fmap
->u
.elf
.sect
[i
].shdr
, sizeof(fmap
->u
.elf
.sect
[i
].shdr
)) != sizeof(fmap
->u
.elf
.sect
[i
].shdr
))
277 HeapFree(GetProcessHeap
, 0, fmap
->u
.elf
.sect
);
278 fmap
->u
.elf
.sect
= NULL
;
281 fmap
->u
.elf
.sect
[i
].mapped
= IMAGE_NO_MAP
;
284 /* grab size of module once loaded in memory */
285 lseek(fmap
->u
.elf
.fd
, fmap
->u
.elf
.elfhdr
.e_phoff
, SEEK_SET
);
286 fmap
->u
.elf
.elf_size
= 0;
287 fmap
->u
.elf
.elf_start
= ~0L;
288 for (i
= 0; i
< fmap
->u
.elf
.elfhdr
.e_phnum
; i
++)
290 if (read(fmap
->u
.elf
.fd
, &phdr
, sizeof(phdr
)) == sizeof(phdr
) &&
291 phdr
.p_type
== PT_LOAD
)
293 tmp
= (phdr
.p_vaddr
+ phdr
.p_memsz
+ page_mask
) & ~page_mask
;
294 if (fmap
->u
.elf
.elf_size
< tmp
) fmap
->u
.elf
.elf_size
= tmp
;
295 if (phdr
.p_vaddr
< fmap
->u
.elf
.elf_start
) fmap
->u
.elf
.elf_start
= phdr
.p_vaddr
;
298 /* if non relocatable ELF, then remove fixed address from computation
299 * otherwise, all addresses are zero based and start has no effect
301 fmap
->u
.elf
.elf_size
-= fmap
->u
.elf
.elf_start
;
304 HeapFree(GetProcessHeap(), 0, filename
);
308 /******************************************************************
311 * Unmaps an ELF file from memory (previously mapped with elf_map_file)
313 static void elf_unmap_file(struct image_file_map
* fmap
)
317 if (fmap
->u
.elf
.fd
!= -1)
319 struct image_section_map ism
;
321 for (ism
.sidx
= 0; ism
.sidx
< fmap
->u
.elf
.elfhdr
.e_shnum
; ism
.sidx
++)
323 elf_unmap_section(&ism
);
325 HeapFree(GetProcessHeap(), 0, fmap
->u
.elf
.sect
);
326 close(fmap
->u
.elf
.fd
);
328 fmap
= fmap
->u
.elf
.alternate
;
332 static void elf_module_remove(struct process
* pcs
, struct module_format
* modfmt
)
334 elf_unmap_file(&modfmt
->u
.elf_info
->file_map
);
335 HeapFree(GetProcessHeap(), 0, modfmt
);
338 /******************************************************************
339 * elf_is_in_thunk_area
341 * Check whether an address lies within one of the thunk area we
344 int elf_is_in_thunk_area(unsigned long addr
,
345 const struct elf_thunk_area
* thunks
)
349 if (thunks
) for (i
= 0; thunks
[i
].symname
; i
++)
351 if (addr
>= thunks
[i
].rva_start
&& addr
< thunks
[i
].rva_end
)
357 /******************************************************************
360 * creating an internal hash table to ease use ELF symtab information lookup
362 static void elf_hash_symtab(struct module
* module
, struct pool
* pool
,
363 struct hash_table
* ht_symtab
, struct image_file_map
* fmap
,
364 struct elf_thunk_area
* thunks
)
369 struct symt_compiland
* compiland
= NULL
;
372 struct symtab_elt
* ste
;
373 struct image_section_map ism
, ism_str
;
375 if (!elf_find_section(fmap
, ".symtab", SHT_SYMTAB
, &ism
) &&
376 !elf_find_section(fmap
, ".dynsym", SHT_DYNSYM
, &ism
)) return;
377 if ((symp
= (const Elf_Sym
*)image_map_section(&ism
)) == IMAGE_NO_MAP
) return;
378 ism_str
.fmap
= ism
.fmap
;
379 ism_str
.sidx
= fmap
->u
.elf
.sect
[ism
.sidx
].shdr
.sh_link
;
380 if ((strp
= image_map_section(&ism_str
)) == IMAGE_NO_MAP
)
382 image_unmap_section(&ism
);
386 nsym
= image_get_map_size(&ism
) / sizeof(*symp
);
388 for (j
= 0; thunks
[j
].symname
; j
++)
389 thunks
[j
].rva_start
= thunks
[j
].rva_end
= 0;
391 for (i
= 0; i
< nsym
; i
++, symp
++)
393 /* Ignore certain types of entries which really aren't of that much
396 if ((ELF32_ST_TYPE(symp
->st_info
) != STT_NOTYPE
&&
397 ELF32_ST_TYPE(symp
->st_info
) != STT_FILE
&&
398 ELF32_ST_TYPE(symp
->st_info
) != STT_OBJECT
&&
399 ELF32_ST_TYPE(symp
->st_info
) != STT_FUNC
) ||
400 symp
->st_shndx
== SHN_UNDEF
)
405 symname
= strp
+ symp
->st_name
;
407 /* handle some specific symtab (that we'll throw away when done) */
408 switch (ELF32_ST_TYPE(symp
->st_info
))
412 compiland
= symt_new_compiland(module
, symp
->st_value
,
413 source_new(module
, NULL
, symname
));
418 /* we are only interested in wine markers inserted by winebuild */
419 for (j
= 0; thunks
[j
].symname
; j
++)
421 if (!strcmp(symname
, thunks
[j
].symname
))
423 thunks
[j
].rva_start
= symp
->st_value
;
424 thunks
[j
].rva_end
= symp
->st_value
+ symp
->st_size
;
431 /* FIXME: we don't need to handle them (GCC internals)
432 * Moreover, they screw up our symbol lookup :-/
434 if (symname
[0] == '.' && symname
[1] == 'L' && isdigit(symname
[2]))
437 ste
= pool_alloc(pool
, sizeof(*ste
));
438 ste
->ht_elt
.name
= symname
;
439 /* GCC emits, in some cases, a .<digit>+ suffix.
440 * This is used for static variable inside functions, so
441 * that we can have several such variables with same name in
442 * the same compilation unit
443 * We simply ignore that suffix when present (we also get rid
444 * of it in stabs parsing)
446 ptr
= symname
+ strlen(symname
) - 1;
449 while (isdigit(*ptr
) && ptr
>= symname
) ptr
--;
450 if (ptr
> symname
&& *ptr
== '.')
452 char* n
= pool_alloc(pool
, ptr
- symname
+ 1);
453 memcpy(n
, symname
, ptr
- symname
+ 1);
454 n
[ptr
- symname
] = '\0';
455 ste
->ht_elt
.name
= n
;
459 ste
->compiland
= compiland
;
461 hash_table_add(ht_symtab
, &ste
->ht_elt
);
463 /* as we added in the ht_symtab pointers to the symbols themselves,
464 * we cannot unmap yet the sections, it will be done when we're over
469 /******************************************************************
472 * lookup a symbol by name in our internal hash table for the symtab
474 static const Elf_Sym
* elf_lookup_symtab(const struct module
* module
,
475 const struct hash_table
* ht_symtab
,
476 const char* name
, const struct symt
* compiland
)
478 struct symtab_elt
* weak_result
= NULL
; /* without compiland name */
479 struct symtab_elt
* result
= NULL
;
480 struct hash_table_iter hti
;
481 struct symtab_elt
* ste
;
482 const char* compiland_name
;
483 const char* compiland_basename
;
486 /* we need weak match up (at least) when symbols of same name,
487 * defined several times in different compilation units,
488 * are merged in a single one (hence a different filename for c.u.)
492 compiland_name
= source_get(module
,
493 ((const struct symt_compiland
*)compiland
)->source
);
494 compiland_basename
= strrchr(compiland_name
, '/');
495 if (!compiland_basename
++) compiland_basename
= compiland_name
;
497 else compiland_name
= compiland_basename
= NULL
;
499 hash_table_iter_init(ht_symtab
, &hti
, name
);
500 while ((ste
= hash_table_iter_up(&hti
)))
502 if (ste
->used
|| strcmp(ste
->ht_elt
.name
, name
)) continue;
505 if ((ste
->compiland
&& !compiland_name
) || (!ste
->compiland
&& compiland_name
))
507 if (ste
->compiland
&& compiland_name
)
509 const char* filename
= source_get(module
, ste
->compiland
->source
);
510 if (strcmp(filename
, compiland_name
))
512 base
= strrchr(filename
, '/');
513 if (!base
++) base
= filename
;
514 if (strcmp(base
, compiland_basename
)) continue;
519 FIXME("Already found symbol %s (%s) in symtab %s @%08x and %s @%08x\n",
520 name
, compiland_name
,
521 source_get(module
, result
->compiland
->source
), (unsigned int)result
->symp
->st_value
,
522 source_get(module
, ste
->compiland
->source
), (unsigned int)ste
->symp
->st_value
);
530 if (!result
&& !(result
= weak_result
))
532 FIXME("Couldn't find symbol %s!%s in symtab\n",
533 debugstr_w(module
->module
.ModuleName
), name
);
539 /******************************************************************
540 * elf_finish_stabs_info
542 * - get any relevant information (address & size) from the bits we got from the
543 * stabs debugging information
545 static void elf_finish_stabs_info(struct module
* module
, const struct hash_table
* symtab
)
547 struct hash_table_iter hti
;
551 struct elf_module_info
* elf_info
= module
->format_info
[DFI_ELF
]->u
.elf_info
;
553 hash_table_iter_init(&module
->ht_symbols
, &hti
, NULL
);
554 while ((ptr
= hash_table_iter_up(&hti
)))
556 sym
= GET_ENTRY(ptr
, struct symt_ht
, hash_elt
);
557 switch (sym
->symt
.tag
)
560 if (((struct symt_function
*)sym
)->address
!= elf_info
->elf_addr
&&
561 ((struct symt_function
*)sym
)->size
)
565 symp
= elf_lookup_symtab(module
, symtab
, sym
->hash_elt
.name
,
566 ((struct symt_function
*)sym
)->container
);
569 if (((struct symt_function
*)sym
)->address
!= elf_info
->elf_addr
&&
570 ((struct symt_function
*)sym
)->address
!= elf_info
->elf_addr
+ symp
->st_value
)
571 FIXME("Changing address for %p/%s!%s from %08lx to %08lx\n",
572 sym
, debugstr_w(module
->module
.ModuleName
), sym
->hash_elt
.name
,
573 ((struct symt_function
*)sym
)->address
, elf_info
->elf_addr
+ symp
->st_value
);
574 if (((struct symt_function
*)sym
)->size
&& ((struct symt_function
*)sym
)->size
!= symp
->st_size
)
575 FIXME("Changing size for %p/%s!%s from %08lx to %08x\n",
576 sym
, debugstr_w(module
->module
.ModuleName
), sym
->hash_elt
.name
,
577 ((struct symt_function
*)sym
)->size
, (unsigned int)symp
->st_size
);
579 ((struct symt_function
*)sym
)->address
= elf_info
->elf_addr
+ symp
->st_value
;
580 ((struct symt_function
*)sym
)->size
= symp
->st_size
;
582 FIXME("Couldn't find %s!%s\n",
583 debugstr_w(module
->module
.ModuleName
), sym
->hash_elt
.name
);
586 switch (((struct symt_data
*)sym
)->kind
)
589 case DataIsFileStatic
:
590 if (((struct symt_data
*)sym
)->u
.var
.offset
!= elf_info
->elf_addr
)
592 symp
= elf_lookup_symtab(module
, symtab
, sym
->hash_elt
.name
,
593 ((struct symt_data
*)sym
)->container
);
596 if (((struct symt_data
*)sym
)->u
.var
.offset
!= elf_info
->elf_addr
&&
597 ((struct symt_data
*)sym
)->u
.var
.offset
!= elf_info
->elf_addr
+ symp
->st_value
)
598 FIXME("Changing address for %p/%s!%s from %08lx to %08lx\n",
599 sym
, debugstr_w(module
->module
.ModuleName
), sym
->hash_elt
.name
,
600 ((struct symt_function
*)sym
)->address
, elf_info
->elf_addr
+ symp
->st_value
);
601 ((struct symt_data
*)sym
)->u
.var
.offset
= elf_info
->elf_addr
+ symp
->st_value
;
602 ((struct symt_data
*)sym
)->kind
= (ELF32_ST_BIND(symp
->st_info
) == STB_LOCAL
) ?
603 DataIsFileStatic
: DataIsGlobal
;
605 FIXME("Couldn't find %s!%s\n",
606 debugstr_w(module
->module
.ModuleName
), sym
->hash_elt
.name
);
612 FIXME("Unsupported tag %u\n", sym
->symt
.tag
);
616 /* since we may have changed some addresses & sizes, mark the module to be resorted */
617 module
->sortlist_valid
= FALSE
;
620 /******************************************************************
621 * elf_load_wine_thunks
623 * creating the thunk objects for a wine native DLL
625 static int elf_new_wine_thunks(struct module
* module
, const struct hash_table
* ht_symtab
,
626 const struct elf_thunk_area
* thunks
)
629 struct hash_table_iter hti
;
630 struct symtab_elt
* ste
;
632 struct symt_ht
* symt
;
634 hash_table_iter_init(ht_symtab
, &hti
, NULL
);
635 while ((ste
= hash_table_iter_up(&hti
)))
637 if (ste
->used
) continue;
639 addr
= module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_addr
+ ste
->symp
->st_value
;
641 j
= elf_is_in_thunk_area(ste
->symp
->st_value
, thunks
);
642 if (j
>= 0) /* thunk found */
644 symt_new_thunk(module
, ste
->compiland
, ste
->ht_elt
.name
, thunks
[j
].ordinal
,
645 addr
, ste
->symp
->st_size
);
651 symt
= symt_find_nearest(module
, addr
);
652 if (symt
&& !symt_get_info(module
, &symt
->symt
, TI_GET_ADDRESS
, &ref_addr
))
654 if (!symt
|| addr
!= ref_addr
)
656 /* creating public symbols for all the ELF symbols which haven't been
657 * used yet (ie we have no debug information on them)
658 * That's the case, for example, of the .spec.c files
660 switch (ELF32_ST_TYPE(ste
->symp
->st_info
))
663 symt_new_function(module
, ste
->compiland
, ste
->ht_elt
.name
,
664 addr
, ste
->symp
->st_size
, NULL
);
667 symt_new_global_variable(module
, ste
->compiland
, ste
->ht_elt
.name
,
668 ELF32_ST_BIND(ste
->symp
->st_info
) == STB_LOCAL
,
669 addr
, ste
->symp
->st_size
, NULL
);
672 FIXME("Shouldn't happen\n");
675 /* FIXME: this is a hack !!!
676 * we are adding new symbols, but as we're parsing a symbol table
677 * (hopefully without duplicate symbols) we delay rebuilding the sorted
678 * module table until we're done with the symbol table
679 * Otherwise, as we intertwine symbols's add and lookup, performance
682 module
->sortlist_valid
= TRUE
;
684 else if (strcmp(ste
->ht_elt
.name
, symt
->hash_elt
.name
))
686 ULONG64 xaddr
= 0, xsize
= 0;
689 symt_get_info(module
, &symt
->symt
, TI_GET_ADDRESS
, &xaddr
);
690 symt_get_info(module
, &symt
->symt
, TI_GET_LENGTH
, &xsize
);
691 symt_get_info(module
, &symt
->symt
, TI_GET_DATAKIND
, &kind
);
693 /* If none of symbols has a correct size, we consider they are both markers
694 * Hence, we can silence this warning
695 * Also, we check that we don't have two symbols, one local, the other
696 * global which is legal
698 if ((xsize
|| ste
->symp
->st_size
) &&
699 (kind
== (ELF32_ST_BIND(ste
->symp
->st_info
) == STB_LOCAL
) ? DataIsFileStatic
: DataIsGlobal
))
700 FIXME("Duplicate in %s: %s<%08lx-%08x> %s<%s-%s>\n",
701 debugstr_w(module
->module
.ModuleName
),
702 ste
->ht_elt
.name
, addr
, (unsigned int)ste
->symp
->st_size
,
704 wine_dbgstr_longlong(xaddr
), wine_dbgstr_longlong(xsize
));
708 /* see comment above */
709 module
->sortlist_valid
= FALSE
;
713 /******************************************************************
714 * elf_new_public_symbols
716 * Creates a set of public symbols from an ELF symtab
718 static int elf_new_public_symbols(struct module
* module
, const struct hash_table
* symtab
)
720 struct hash_table_iter hti
;
721 struct symtab_elt
* ste
;
723 if (dbghelp_options
& SYMOPT_NO_PUBLICS
) return TRUE
;
725 /* FIXME: we're missing the ELF entry point here */
727 hash_table_iter_init(symtab
, &hti
, NULL
);
728 while ((ste
= hash_table_iter_up(&hti
)))
730 symt_new_public(module
, ste
->compiland
, ste
->ht_elt
.name
,
731 module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_addr
+ ste
->symp
->st_value
,
737 static BOOL
elf_check_debug_link(const WCHAR
* file
, struct image_file_map
* fmap
, DWORD crc
)
740 if (!elf_map_file(file
, fmap
)) return FALSE
;
741 if (!(ret
= crc
== calc_crc32(fmap
->u
.elf
.fd
)))
743 WARN("Bad CRC for file %s (got %08x while expecting %08x)\n",
744 debugstr_w(file
), calc_crc32(fmap
->u
.elf
.fd
), crc
);
745 elf_unmap_file(fmap
);
750 /******************************************************************
751 * elf_locate_debug_link
753 * Locate a filename from a .gnu_debuglink section, using the same
755 * "If the full name of the directory containing the executable is
756 * execdir, and the executable has a debug link that specifies the
757 * name debugfile, then GDB will automatically search for the
758 * debugging information file in three places:
759 * - the directory containing the executable file (that is, it
760 * will look for a file named `execdir/debugfile',
761 * - a subdirectory of that directory named `.debug' (that is, the
762 * file `execdir/.debug/debugfile', and
763 * - a subdirectory of the global debug file directory that includes
764 * the executable's full path, and the name from the link (that is,
765 * the file `globaldebugdir/execdir/debugfile', where globaldebugdir
766 * is the global debug file directory, and execdir has been turned
767 * into a relative path)." (from GDB manual)
769 static BOOL
elf_locate_debug_link(struct image_file_map
* fmap
, const char* filename
,
770 const WCHAR
* loaded_file
, DWORD crc
)
772 static const WCHAR globalDebugDirW
[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'};
773 static const WCHAR dotDebugW
[] = {'.','d','e','b','u','g','/'};
774 const size_t globalDebugDirLen
= sizeof(globalDebugDirW
) / sizeof(WCHAR
);
778 struct image_file_map
* fmap_link
= NULL
;
780 fmap_link
= HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link
));
781 if (!fmap_link
) return FALSE
;
783 filename_len
= MultiByteToWideChar(CP_UNIXCP
, 0, filename
, -1, NULL
, 0);
784 p
= HeapAlloc(GetProcessHeap(), 0,
785 (globalDebugDirLen
+ strlenW(loaded_file
) + 6 + 1 + filename_len
+ 1) * sizeof(WCHAR
));
788 /* we prebuild the string with "execdir" */
789 strcpyW(p
, loaded_file
);
790 slash
= strrchrW(p
, '/');
791 if (slash
== NULL
) slash
= p
; else slash
++;
793 /* testing execdir/filename */
794 MultiByteToWideChar(CP_UNIXCP
, 0, filename
, -1, slash
, filename_len
);
795 if (elf_check_debug_link(p
, fmap_link
, crc
)) goto found
;
797 /* testing execdir/.debug/filename */
798 memcpy(slash
, dotDebugW
, sizeof(dotDebugW
));
799 MultiByteToWideChar(CP_UNIXCP
, 0, filename
, -1, slash
+ sizeof(dotDebugW
) / sizeof(WCHAR
), filename_len
);
800 if (elf_check_debug_link(p
, fmap_link
, crc
)) goto found
;
802 /* testing globaldebugdir/execdir/filename */
803 memmove(p
+ globalDebugDirLen
, p
, (slash
- p
) * sizeof(WCHAR
));
804 memcpy(p
, globalDebugDirW
, globalDebugDirLen
* sizeof(WCHAR
));
805 slash
+= globalDebugDirLen
;
806 MultiByteToWideChar(CP_UNIXCP
, 0, filename
, -1, slash
, filename_len
);
807 if (elf_check_debug_link(p
, fmap_link
, crc
)) goto found
;
809 /* finally testing filename */
810 if (elf_check_debug_link(slash
, fmap_link
, crc
)) goto found
;
813 WARN("Couldn't locate or map %s\n", filename
);
814 HeapFree(GetProcessHeap(), 0, p
);
815 HeapFree(GetProcessHeap(), 0, fmap_link
);
819 TRACE("Located debug information file %s at %s\n", filename
, debugstr_w(p
));
820 HeapFree(GetProcessHeap(), 0, p
);
821 fmap
->u
.elf
.alternate
= fmap_link
;
825 /******************************************************************
826 * elf_debuglink_parse
828 * Parses a .gnu_debuglink section and loads the debug info from
829 * the external file specified there.
831 static BOOL
elf_debuglink_parse(struct image_file_map
* fmap
, const struct module
* module
,
832 const BYTE
* debuglink
)
834 /* The content of a debug link section is:
835 * 1/ a NULL terminated string, containing the file name for the
837 * 2/ padding on 4 byte boundary
838 * 3/ CRC of the linked ELF file
840 const char* dbg_link
= (const char*)debuglink
;
843 crc
= *(const DWORD
*)(dbg_link
+ ((DWORD_PTR
)(strlen(dbg_link
) + 4) & ~3));
844 return elf_locate_debug_link(fmap
, dbg_link
, module
->module
.LoadedImageName
, crc
);
847 /******************************************************************
848 * elf_load_debug_info_from_map
850 * Loads the symbolic information from ELF module which mapping is described
852 * the module has been loaded at 'load_offset' address, so symbols' address
853 * relocation is performed.
854 * CRC is checked if fmap->with_crc is TRUE
856 * 0 if the file doesn't contain symbolic info (or this info cannot be
860 static BOOL
elf_load_debug_info_from_map(struct module
* module
,
861 struct image_file_map
* fmap
,
863 struct hash_table
* ht_symtab
)
865 BOOL ret
= FALSE
, lret
;
866 struct elf_thunk_area thunks
[] =
868 {"__wine_spec_import_thunks", THUNK_ORDINAL_NOTYPE
, 0, 0}, /* inter DLL calls */
869 {"__wine_spec_delayed_import_loaders", THUNK_ORDINAL_LOAD
, 0, 0}, /* delayed inter DLL calls */
870 {"__wine_spec_delayed_import_thunks", THUNK_ORDINAL_LOAD
, 0, 0}, /* delayed inter DLL calls */
871 {"__wine_delay_load", THUNK_ORDINAL_LOAD
, 0, 0}, /* delayed inter DLL calls */
872 {"__wine_spec_thunk_text_16", -16, 0, 0}, /* 16 => 32 thunks */
873 {"__wine_spec_thunk_text_32", -32, 0, 0}, /* 32 => 16 thunks */
877 module
->module
.SymType
= SymExport
;
879 /* create a hash table for the symtab */
880 elf_hash_symtab(module
, pool
, ht_symtab
, fmap
, thunks
);
882 if (!(dbghelp_options
& SYMOPT_PUBLICS_ONLY
))
884 struct image_section_map stab_sect
, stabstr_sect
;
885 struct image_section_map debuglink_sect
;
887 /* if present, add the .gnu_debuglink file as an alternate to current one */
888 if (elf_find_section(fmap
, ".gnu_debuglink", SHT_NULL
, &debuglink_sect
))
890 const BYTE
* dbg_link
;
892 dbg_link
= (const BYTE
*)image_map_section(&debuglink_sect
);
893 if (dbg_link
!= IMAGE_NO_MAP
)
895 lret
= elf_debuglink_parse(fmap
, module
, dbg_link
);
897 WARN("Couldn't load linked debug file for %s\n",
898 debugstr_w(module
->module
.ModuleName
));
901 image_unmap_section(&debuglink_sect
);
903 if (elf_find_section(fmap
, ".stab", SHT_NULL
, &stab_sect
) &&
904 elf_find_section(fmap
, ".stabstr", SHT_NULL
, &stabstr_sect
))
909 stab
= image_map_section(&stab_sect
);
910 stabstr
= image_map_section(&stabstr_sect
);
911 if (stab
!= IMAGE_NO_MAP
&& stabstr
!= IMAGE_NO_MAP
)
913 /* OK, now just parse all of the stabs. */
914 lret
= stabs_parse(module
, module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_addr
,
915 stab
, image_get_map_size(&stab_sect
),
916 stabstr
, image_get_map_size(&stabstr_sect
),
919 /* and fill in the missing information for stabs */
920 elf_finish_stabs_info(module
, ht_symtab
);
922 WARN("Couldn't correctly read stabs\n");
926 image_unmap_section(&stab_sect
);
927 image_unmap_section(&stabstr_sect
);
929 lret
= dwarf2_parse(module
, module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_addr
,
933 if (strstrW(module
->module
.ModuleName
, S_ElfW
) ||
934 !strcmpW(module
->module
.ModuleName
, S_WineLoaderW
))
936 /* add the thunks for native libraries */
937 if (!(dbghelp_options
& SYMOPT_PUBLICS_ONLY
))
938 elf_new_wine_thunks(module
, ht_symtab
, thunks
);
940 /* add all the public symbols from symtab */
941 if (elf_new_public_symbols(module
, ht_symtab
) && !ret
) ret
= TRUE
;
946 /******************************************************************
947 * elf_load_debug_info
949 * Loads ELF debugging information from the module image file.
951 BOOL
elf_load_debug_info(struct module
* module
, struct image_file_map
* fmap
)
955 struct hash_table ht_symtab
;
956 struct image_file_map my_fmap
;
957 struct module_format
* modfmt
;
959 if (module
->type
!= DMT_ELF
|| !(modfmt
= module
->format_info
[DFI_ELF
]) || !modfmt
->u
.elf_info
)
961 ERR("Bad elf module '%s'\n", debugstr_w(module
->module
.LoadedImageName
));
965 pool_init(&pool
, 65536);
966 hash_table_init(&pool
, &ht_symtab
, 256);
971 ret
= elf_map_file(module
->module
.LoadedImageName
, fmap
);
974 ret
= elf_load_debug_info_from_map(module
, fmap
, &pool
, &ht_symtab
);
978 modfmt
->u
.elf_info
->file_map
= *fmap
;
979 elf_reset_file_map(fmap
);
983 if (fmap
== &my_fmap
) elf_unmap_file(fmap
);
987 /******************************************************************
988 * elf_fetch_file_info
990 * Gathers some more information for an ELF module from a given file
992 BOOL
elf_fetch_file_info(const WCHAR
* name
, DWORD
* base
,
993 DWORD
* size
, DWORD
* checksum
)
995 struct image_file_map fmap
;
997 if (!elf_map_file(name
, &fmap
)) return FALSE
;
998 if (base
) *base
= fmap
.u
.elf
.elf_start
;
999 *size
= fmap
.u
.elf
.elf_size
;
1000 *checksum
= calc_crc32(fmap
.u
.elf
.fd
);
1001 elf_unmap_file(&fmap
);
1005 /******************************************************************
1008 * Loads the information for ELF module stored in 'filename'
1009 * the module has been loaded at 'load_offset' address
1011 * -1 if the file cannot be found/opened
1012 * 0 if the file doesn't contain symbolic info (or this info cannot be
1016 static BOOL
elf_load_file(struct process
* pcs
, const WCHAR
* filename
,
1017 unsigned long load_offset
, struct elf_info
* elf_info
)
1020 struct image_file_map fmap
;
1022 TRACE("Processing elf file '%s' at %08lx\n", debugstr_w(filename
), load_offset
);
1024 if (!elf_map_file(filename
, &fmap
)) return ret
;
1026 /* Next, we need to find a few of the internal ELF headers within
1027 * this thing. We need the main executable header, and the section
1030 if (!fmap
.u
.elf
.elf_start
&& !load_offset
)
1031 ERR("Relocatable ELF %s, but no load address. Loading at 0x0000000\n",
1032 debugstr_w(filename
));
1033 if (fmap
.u
.elf
.elf_start
&& load_offset
)
1035 WARN("Non-relocatable ELF %s, but load address of 0x%08lx supplied. "
1036 "Assuming load address is corrupt\n", debugstr_w(filename
), load_offset
);
1040 if (elf_info
->flags
& ELF_INFO_DEBUG_HEADER
)
1042 struct image_section_map ism
;
1044 if (elf_find_section(&fmap
, ".dynamic", SHT_DYNAMIC
, &ism
))
1047 char* ptr
= (char*)fmap
.u
.elf
.sect
[ism
.sidx
].shdr
.sh_addr
;
1052 if (!ReadProcessMemory(pcs
->handle
, ptr
, &dyn
, sizeof(dyn
), &len
) ||
1055 if (dyn
.d_tag
== DT_DEBUG
)
1057 elf_info
->dbg_hdr_addr
= dyn
.d_un
.d_ptr
;
1061 } while (dyn
.d_tag
!= DT_NULL
);
1062 if (dyn
.d_tag
== DT_NULL
) goto leave
;
1064 elf_end_find(&fmap
);
1067 if (elf_info
->flags
& ELF_INFO_MODULE
)
1069 struct elf_module_info
*elf_module_info
;
1070 struct module_format
* modfmt
;
1072 modfmt
= HeapAlloc(GetProcessHeap(), 0,
1073 sizeof(struct module_format
) + sizeof(struct elf_module_info
));
1074 if (!modfmt
) goto leave
;
1075 elf_info
->module
= module_new(pcs
, filename
, DMT_ELF
, FALSE
,
1076 (load_offset
) ? load_offset
: fmap
.u
.elf
.elf_start
,
1077 fmap
.u
.elf
.elf_size
, 0, calc_crc32(fmap
.u
.elf
.fd
));
1078 if (!elf_info
->module
)
1080 HeapFree(GetProcessHeap(), 0, modfmt
);
1083 elf_info
->module
->reloc_delta
= elf_info
->module
->module
.BaseOfImage
- fmap
.u
.elf
.elf_start
;
1084 elf_module_info
= (void*)(modfmt
+ 1);
1085 elf_info
->module
->format_info
[DFI_ELF
] = modfmt
;
1086 modfmt
->module
= elf_info
->module
;
1087 modfmt
->remove
= elf_module_remove
;
1088 modfmt
->loc_compute
= NULL
;
1089 modfmt
->u
.elf_info
= elf_module_info
;
1091 elf_module_info
->elf_addr
= load_offset
;
1093 if (dbghelp_options
& SYMOPT_DEFERRED_LOADS
)
1095 elf_info
->module
->module
.SymType
= SymDeferred
;
1096 elf_module_info
->file_map
= fmap
;
1097 elf_reset_file_map(&fmap
);
1100 else ret
= elf_load_debug_info(elf_info
->module
, &fmap
);
1102 elf_module_info
->elf_mark
= 1;
1103 elf_module_info
->elf_loader
= 0;
1106 if (elf_info
->flags
& ELF_INFO_NAME
)
1109 ptr
= HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename
) + 1) * sizeof(WCHAR
));
1112 strcpyW(ptr
, filename
);
1113 elf_info
->module_name
= ptr
;
1118 elf_unmap_file(&fmap
);
1123 /******************************************************************
1124 * elf_load_file_from_path
1125 * tries to load an ELF file from a set of paths (separated by ':')
1127 static BOOL
elf_load_file_from_path(HANDLE hProcess
,
1128 const WCHAR
* filename
,
1129 unsigned long load_offset
,
1131 struct elf_info
* elf_info
)
1135 WCHAR
* pathW
= NULL
;
1138 if (!path
) return FALSE
;
1140 len
= MultiByteToWideChar(CP_UNIXCP
, 0, path
, -1, NULL
, 0);
1141 pathW
= HeapAlloc(GetProcessHeap(), 0, len
* sizeof(WCHAR
));
1142 if (!pathW
) return FALSE
;
1143 MultiByteToWideChar(CP_UNIXCP
, 0, path
, -1, pathW
, len
);
1145 for (s
= pathW
; s
&& *s
; s
= (t
) ? (t
+1) : NULL
)
1147 t
= strchrW(s
, ':');
1149 fn
= HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename
) + 1 + lstrlenW(s
) + 1) * sizeof(WCHAR
));
1152 strcatW(fn
, S_SlashW
);
1153 strcatW(fn
, filename
);
1154 ret
= elf_load_file(hProcess
, fn
, load_offset
, elf_info
);
1155 HeapFree(GetProcessHeap(), 0, fn
);
1157 s
= (t
) ? (t
+1) : NULL
;
1160 HeapFree(GetProcessHeap(), 0, pathW
);
1164 /******************************************************************
1165 * elf_load_file_from_dll_path
1167 * Tries to load an ELF file from the dll path
1169 static BOOL
elf_load_file_from_dll_path(HANDLE hProcess
,
1170 const WCHAR
* filename
,
1171 unsigned long load_offset
,
1172 struct elf_info
* elf_info
)
1175 unsigned int index
= 0;
1178 while (!ret
&& (path
= wine_dll_enum_load_path( index
++ )))
1183 len
= MultiByteToWideChar(CP_UNIXCP
, 0, path
, -1, NULL
, 0);
1185 name
= HeapAlloc( GetProcessHeap(), 0,
1186 (len
+ lstrlenW(filename
) + 2) * sizeof(WCHAR
) );
1189 MultiByteToWideChar(CP_UNIXCP
, 0, path
, -1, name
, len
);
1190 strcatW( name
, S_SlashW
);
1191 strcatW( name
, filename
);
1192 ret
= elf_load_file(hProcess
, name
, load_offset
, elf_info
);
1193 HeapFree( GetProcessHeap(), 0, name
);
1198 /******************************************************************
1199 * elf_search_and_load_file
1201 * lookup a file in standard ELF locations, and if found, load it
1203 static BOOL
elf_search_and_load_file(struct process
* pcs
, const WCHAR
* filename
,
1204 unsigned long load_offset
,
1205 struct elf_info
* elf_info
)
1208 struct module
* module
;
1209 static WCHAR S_libstdcPPW
[] = {'l','i','b','s','t','d','c','+','+','\0'};
1211 if (filename
== NULL
|| *filename
== '\0') return FALSE
;
1212 if ((module
= module_is_already_loaded(pcs
, filename
)))
1214 elf_info
->module
= module
;
1215 elf_info
->module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_mark
= 1;
1216 return module
->module
.SymType
;
1219 if (strstrW(filename
, S_libstdcPPW
)) return FALSE
; /* We know we can't do it */
1220 ret
= elf_load_file(pcs
, filename
, load_offset
, elf_info
);
1221 /* if relative pathname, try some absolute base dirs */
1222 if (!ret
&& !strchrW(filename
, '/'))
1224 ret
= elf_load_file_from_path(pcs
, filename
, load_offset
,
1225 getenv("PATH"), elf_info
) ||
1226 elf_load_file_from_path(pcs
, filename
, load_offset
,
1227 getenv("LD_LIBRARY_PATH"), elf_info
);
1228 if (!ret
) ret
= elf_load_file_from_dll_path(pcs
, filename
, load_offset
, elf_info
);
1234 /******************************************************************
1235 * elf_enum_modules_internal
1237 * Enumerate ELF modules from a running process
1239 static BOOL
elf_enum_modules_internal(const struct process
* pcs
,
1240 const WCHAR
* main_name
,
1241 enum_modules_cb cb
, void* user
)
1243 struct r_debug dbg_hdr
;
1247 WCHAR bufstrW
[MAX_PATH
];
1249 if (!pcs
->dbg_hdr_addr
||
1250 !ReadProcessMemory(pcs
->handle
, (void*)pcs
->dbg_hdr_addr
,
1251 &dbg_hdr
, sizeof(dbg_hdr
), NULL
))
1254 /* Now walk the linked list. In all known ELF implementations,
1255 * the dynamic loader maintains this linked list for us. In some
1256 * cases the first entry doesn't appear with a name, in other cases it
1259 for (lm_addr
= (void*)dbg_hdr
.r_map
; lm_addr
; lm_addr
= (void*)lm
.l_next
)
1261 if (!ReadProcessMemory(pcs
->handle
, lm_addr
, &lm
, sizeof(lm
), NULL
))
1264 if (lm
.l_prev
!= NULL
&& /* skip first entry, normally debuggee itself */
1265 lm
.l_name
!= NULL
&&
1266 ReadProcessMemory(pcs
->handle
, lm
.l_name
, bufstr
, sizeof(bufstr
), NULL
))
1268 bufstr
[sizeof(bufstr
) - 1] = '\0';
1269 MultiByteToWideChar(CP_UNIXCP
, 0, bufstr
, -1, bufstrW
, sizeof(bufstrW
) / sizeof(WCHAR
));
1270 if (main_name
&& !bufstrW
[0]) strcpyW(bufstrW
, main_name
);
1271 if (!cb(bufstrW
, (unsigned long)lm
.l_addr
, user
)) break;
1279 struct process
* pcs
;
1280 struct elf_info elf_info
;
1283 static BOOL
elf_enum_sync_cb(const WCHAR
* name
, unsigned long addr
, void* user
)
1285 struct elf_sync
* es
= user
;
1287 elf_search_and_load_file(es
->pcs
, name
, addr
, &es
->elf_info
);
1291 /******************************************************************
1292 * elf_synchronize_module_list
1294 * this functions rescans the debuggee module's list and synchronizes it with
1295 * the one from 'pcs', ie:
1296 * - if a module is in debuggee and not in pcs, it's loaded into pcs
1297 * - if a module is in pcs and not in debuggee, it's unloaded from pcs
1299 BOOL
elf_synchronize_module_list(struct process
* pcs
)
1301 struct module
* module
;
1304 for (module
= pcs
->lmodules
; module
; module
= module
->next
)
1306 if (module
->type
== DMT_ELF
&& !module
->is_virtual
)
1307 module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_mark
= 0;
1311 es
.elf_info
.flags
= ELF_INFO_MODULE
;
1312 if (!elf_enum_modules_internal(pcs
, NULL
, elf_enum_sync_cb
, &es
))
1315 module
= pcs
->lmodules
;
1318 if (module
->type
== DMT_ELF
&& !module
->is_virtual
)
1320 struct elf_module_info
* elf_info
= module
->format_info
[DFI_ELF
]->u
.elf_info
;
1322 if (!elf_info
->elf_mark
&& !elf_info
->elf_loader
)
1324 module_remove(pcs
, module
);
1325 /* restart all over */
1326 module
= pcs
->lmodules
;
1330 module
= module
->next
;
1335 /******************************************************************
1338 * Lookup in a running ELF process the loader, and sets its ELF link
1339 * address (for accessing the list of loaded .so libs) in pcs.
1340 * If flags is ELF_INFO_MODULE, the module for the loader is also
1341 * added as a module into pcs.
1343 static BOOL
elf_search_loader(struct process
* pcs
, struct elf_info
* elf_info
)
1348 /* All binaries are loaded with WINELOADER (if run from tree) or by the
1351 if ((ptr
= getenv("WINELOADER")))
1353 WCHAR tmp
[MAX_PATH
];
1354 MultiByteToWideChar(CP_ACP
, 0, ptr
, -1, tmp
, sizeof(tmp
) / sizeof(WCHAR
));
1355 ret
= elf_search_and_load_file(pcs
, tmp
, 0, elf_info
);
1359 ret
= elf_search_and_load_file(pcs
, S_WineW
, 0, elf_info
);
1364 /******************************************************************
1365 * elf_read_wine_loader_dbg_info
1367 * Try to find a decent wine executable which could have loaded the debuggee
1369 BOOL
elf_read_wine_loader_dbg_info(struct process
* pcs
)
1371 struct elf_info elf_info
;
1373 elf_info
.flags
= ELF_INFO_DEBUG_HEADER
| ELF_INFO_MODULE
;
1374 if (!elf_search_loader(pcs
, &elf_info
)) return FALSE
;
1375 elf_info
.module
->format_info
[DFI_ELF
]->u
.elf_info
->elf_loader
= 1;
1376 module_set_module(elf_info
.module
, S_WineLoaderW
);
1377 return (pcs
->dbg_hdr_addr
= elf_info
.dbg_hdr_addr
) != 0;
1380 /******************************************************************
1383 * Enumerates the ELF loaded modules from a running target (hProc)
1384 * This function doesn't require that someone has called SymInitialize
1385 * on this very process.
1387 BOOL
elf_enum_modules(HANDLE hProc
, enum_modules_cb cb
, void* user
)
1390 struct elf_info elf_info
;
1393 memset(&pcs
, 0, sizeof(pcs
));
1395 elf_info
.flags
= ELF_INFO_DEBUG_HEADER
| ELF_INFO_NAME
;
1396 if (!elf_search_loader(&pcs
, &elf_info
)) return FALSE
;
1397 pcs
.dbg_hdr_addr
= elf_info
.dbg_hdr_addr
;
1398 ret
= elf_enum_modules_internal(&pcs
, elf_info
.module_name
, cb
, user
);
1399 HeapFree(GetProcessHeap(), 0, (char*)elf_info
.module_name
);
1405 struct process
* pcs
;
1406 struct elf_info elf_info
;
1411 /******************************************************************
1414 * Callback for elf_load_module, used to walk the list of loaded
1417 static BOOL
elf_load_cb(const WCHAR
* name
, unsigned long addr
, void* user
)
1419 struct elf_load
* el
= user
;
1422 /* memcmp is needed for matches when bufstr contains also version information
1423 * el->name: libc.so, name: libc.so.6.0
1425 p
= strrchrW(name
, '/');
1427 if (!memcmp(p
, el
->name
, lstrlenW(el
->name
) * sizeof(WCHAR
)))
1429 el
->ret
= elf_search_and_load_file(el
->pcs
, name
, addr
, &el
->elf_info
);
1435 /******************************************************************
1438 * loads an ELF module and stores it in process' module list
1439 * Also, find module real name and load address from
1440 * the real loaded modules list in pcs address space
1442 struct module
* elf_load_module(struct process
* pcs
, const WCHAR
* name
, unsigned long addr
)
1446 TRACE("(%p %s %08lx)\n", pcs
, debugstr_w(name
), addr
);
1448 el
.elf_info
.flags
= ELF_INFO_MODULE
;
1451 if (pcs
->dbg_hdr_addr
) /* we're debugging a life target */
1454 /* do only the lookup from the filename, not the path (as we lookup module
1455 * name in the process' loaded module list)
1457 el
.name
= strrchrW(name
, '/');
1458 if (!el
.name
++) el
.name
= name
;
1461 if (!elf_enum_modules_internal(pcs
, NULL
, elf_load_cb
, &el
))
1467 el
.ret
= elf_search_and_load_file(pcs
, el
.name
, addr
, &el
.elf_info
);
1469 if (!el
.ret
) return NULL
;
1470 assert(el
.elf_info
.module
);
1471 return el
.elf_info
.module
;
1474 #else /* !__ELF__ */
1476 BOOL
elf_find_section(struct image_file_map
* fmap
, const char* name
,
1477 unsigned sht
, struct image_section_map
* ism
)
1482 const char* elf_map_section(struct image_section_map
* ism
)
1487 void elf_unmap_section(struct image_section_map
* ism
)
1490 unsigned elf_get_map_size(const struct image_section_map
* ism
)
1495 DWORD_PTR
elf_get_map_rva(const struct image_section_map
* ism
)
1500 BOOL
elf_synchronize_module_list(struct process
* pcs
)
1505 BOOL
elf_fetch_file_info(const WCHAR
* name
, DWORD
* base
,
1506 DWORD
* size
, DWORD
* checksum
)
1511 BOOL
elf_read_wine_loader_dbg_info(struct process
* pcs
)
1516 BOOL
elf_enum_modules(HANDLE hProc
, enum_modules_cb cb
, void* user
)
1521 struct module
* elf_load_module(struct process
* pcs
, const WCHAR
* name
, unsigned long addr
)
1526 BOOL
elf_load_debug_info(struct module
* module
, struct image_file_map
* fmap
)
1531 int elf_is_in_thunk_area(unsigned long addr
,
1532 const struct elf_thunk_area
* thunks
)
1536 #endif /* __ELF__ */