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dbghelp: Move alternate file map pointer to generic image_file_map. 

Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
feature/deterministic
Jacek Caban 2020-03-16 16:05:23 +01:00 committed by Alexandre Julliard
parent a3e1c7fa02
commit 02dfd959ca
4 changed files with 63 additions and 27 deletions
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61
dlls/dbghelp/elf_module.c
View File

@ -176,14 +176,36 @@ const char* elf_map_section(struct image_section_map* ism)
* Finds a section by name (and type) into memory from an ELF file
* or its alternate if any
*/
BOOL elf_find_section(struct image_file_map* _fmap, const char* name,
unsigned sht, struct image_section_map* ism)
BOOL elf_find_section(struct image_file_map* _fmap, const char* name, struct image_section_map* ism)
{
struct elf_file_map* fmap = &_fmap->u.elf;
unsigned i;
if (fmap->shstrtab == IMAGE_NO_MAP)
{
struct image_section_map hdr_ism = {_fmap, fmap->elfhdr.e_shstrndx};
if ((fmap->shstrtab = elf_map_section(&hdr_ism)) == IMAGE_NO_MAP) return FALSE;
}
for (i = 0; i < fmap->elfhdr.e_shnum; i++)
{
if (strcmp(fmap->shstrtab + fmap->sect[i].shdr.sh_name, name) == 0)
{
ism->fmap = _fmap;
ism->sidx = i;
return TRUE;
}
}
return FALSE;
}
static BOOL elf_find_section_type(struct image_file_map* _fmap, const char* name, unsigned sht, struct image_section_map* ism)
{
struct elf_file_map* fmap;
unsigned i;
while (_fmap)
{
if (_fmap->modtype != DMT_ELF) break;
fmap = &_fmap->u.elf;
if (fmap->shstrtab == IMAGE_NO_MAP)
{
@ -192,15 +214,14 @@ BOOL elf_find_section(struct image_file_map* _fmap, const char* name,
}
for (i = 0; i < fmap->elfhdr.e_shnum; i++)
{
if (strcmp(fmap->shstrtab + fmap->sect[i].shdr.sh_name, name) == 0 &&
(sht == SHT_NULL || sht == fmap->sect[i].shdr.sh_type))
if (strcmp(fmap->shstrtab + fmap->sect[i].shdr.sh_name, name) == 0 && sht == fmap->sect[i].shdr.sh_type)
{
ism->fmap = _fmap;
ism->sidx = i;
return TRUE;
}
}
_fmap = fmap->alternate;
_fmap = _fmap->alternate;
}
ism->fmap = NULL;
ism->sidx = -1;
@ -229,13 +250,13 @@ static void elf_end_find(struct image_file_map* fmap)
{
struct image_section_map ism;
while (fmap)
while (fmap && fmap->modtype == DMT_ELF)
{
ism.fmap = fmap;
ism.sidx = fmap->u.elf.elfhdr.e_shstrndx;
elf_unmap_section(&ism);
fmap->u.elf.shstrtab = IMAGE_NO_MAP;
fmap = fmap->u.elf.alternate;
fmap = fmap->alternate;
}
}
@ -265,9 +286,9 @@ unsigned elf_get_map_size(const struct image_section_map* ism)
static inline void elf_reset_file_map(struct image_file_map* fmap)
{
fmap->alternate = NULL;
fmap->u.elf.handle = INVALID_HANDLE_VALUE;
fmap->u.elf.shstrtab = IMAGE_NO_MAP;
fmap->u.elf.alternate = NULL;
fmap->u.elf.target_copy = NULL;
}
@ -512,7 +533,7 @@ static BOOL elf_map_file(struct elf_map_file_data* emfd, struct image_file_map*
*/
static void elf_unmap_file(struct image_file_map* fmap)
{
while (fmap)
while (fmap && fmap->modtype == DMT_ELF)
{
if (fmap->u.elf.handle != INVALID_HANDLE_VALUE)
{
@ -526,7 +547,7 @@ static void elf_unmap_file(struct image_file_map* fmap)
CloseHandle(fmap->u.elf.handle);
}
HeapFree(GetProcessHeap(), 0, fmap->u.elf.target_copy);
fmap = fmap->u.elf.alternate;
fmap = fmap->alternate;
}
}
@ -573,8 +594,8 @@ static void elf_hash_symtab(struct module* module, struct pool* pool,
struct image_section_map ism, ism_str;
const char *symtab;
if (!elf_find_section(fmap, ".symtab", SHT_SYMTAB, &ism) &&
!elf_find_section(fmap, ".dynsym", SHT_DYNSYM, &ism)) return;
if (!elf_find_section_type(fmap, ".symtab", SHT_SYMTAB, &ism) &&
!elf_find_section_type(fmap, ".dynsym", SHT_DYNSYM, &ism)) return;
if ((symtab = image_map_section(&ism)) == IMAGE_NO_MAP) return;
ism_str.fmap = ism.fmap;
ism_str.sidx = fmap->u.elf.sect[ism.sidx].shdr.sh_link;
@ -1040,7 +1061,7 @@ static BOOL elf_locate_debug_link(struct image_file_map* fmap, const char* filen
found:
TRACE("Located debug information file %s at %s\n", filename, debugstr_w(p));
HeapFree(GetProcessHeap(), 0, p);
fmap->u.elf.alternate = fmap_link;
fmap->alternate = fmap_link;
return TRUE;
}
@ -1094,7 +1115,7 @@ static BOOL elf_locate_build_id_target(struct image_file_map* fmap, const BYTE*
if (elf_map_file(&emfd, fmap_link))
{
struct image_section_map buildid_sect;
if (elf_find_section(fmap_link, ".note.gnu.build-id", SHT_NULL, &buildid_sect))
if (image_find_section(fmap_link, ".note.gnu.build-id", &buildid_sect))
{
const uint32_t* note;
@ -1109,7 +1130,7 @@ static BOOL elf_locate_build_id_target(struct image_file_map* fmap, const BYTE*
{
TRACE("Located debug information file at %s\n", debugstr_w(p));
HeapFree(GetProcessHeap(), 0, p);
fmap->u.elf.alternate = fmap_link;
fmap->alternate = fmap_link;
return TRUE;
}
WARN("mismatch in buildid information for %s\n", wine_dbgstr_w(p));
@ -1223,8 +1244,8 @@ static BOOL elf_load_debug_info_from_map(struct module* module,
/* check if we need an alternate file (from debuglink or build-id) */
ret = elf_check_alternate(fmap, module);
if (elf_find_section(fmap, ".stab", SHT_NULL, &stab_sect) &&
elf_find_section(fmap, ".stabstr", SHT_NULL, &stabstr_sect))
if (image_find_section(fmap, ".stab", &stab_sect) &&
image_find_section(fmap, ".stabstr", &stabstr_sect))
{
const char* stab;
const char* stabstr;
@ -1323,7 +1344,7 @@ static BOOL elf_load_file_from_fmap(struct process* pcs, const WCHAR* filename,
{
struct image_section_map ism;
if (elf_find_section(fmap, ".dynamic", SHT_DYNAMIC, &ism))
if (elf_find_section_type(fmap, ".dynamic", SHT_DYNAMIC, &ism))
{
char* ptr = (char*)(ULONG_PTR)fmap->u.elf.sect[ism.sidx].shdr.sh_addr;
unsigned long len;
@ -1385,7 +1406,7 @@ static BOOL elf_load_file_from_fmap(struct process* pcs, const WCHAR* filename,
struct image_section_map ism;
unsigned long modbase = load_offset;
if (elf_find_section(fmap, ".dynamic", SHT_DYNAMIC, &ism))
if (elf_find_section_type(fmap, ".dynamic", SHT_DYNAMIC, &ism))
{
unsigned long rva_dyn = elf_get_map_rva(&ism);
@ -2016,7 +2037,7 @@ BOOL elf_synchronize_module_list(struct process* pcs)
#else /* !__ELF__ */
BOOL elf_find_section(struct image_file_map* fmap, const char* name,
unsigned sht, struct image_section_map* ism)
struct image_section_map* ism)
{
return FALSE;
}

27
dlls/dbghelp/image_private.h
View File

@ -61,6 +61,7 @@ struct image_file_map
{
enum module_type modtype;
unsigned addr_size; /* either 16 (not used), 32 or 64 */
struct image_file_map* alternate; /* another file linked to this one */
union
{
struct elf_file_map
@ -69,7 +70,6 @@ struct image_file_map
size_t elf_start;
HANDLE handle;
const char* shstrtab;
struct image_file_map* alternate; /* another ELF file (linked to this one) */
char* target_copy;
#ifdef __ELF__
Elf64_Ehdr elfhdr;
@ -130,7 +130,7 @@ struct image_section_map
};
extern BOOL elf_find_section(struct image_file_map* fmap, const char* name,
unsigned sht, struct image_section_map* ism) DECLSPEC_HIDDEN;
struct image_section_map* ism) DECLSPEC_HIDDEN;
extern const char* elf_map_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
extern void elf_unmap_section(struct image_section_map* ism) DECLSPEC_HIDDEN;
extern DWORD_PTR elf_get_map_rva(const struct image_section_map* ism) DECLSPEC_HIDDEN;
@ -153,13 +153,26 @@ extern unsigned pe_get_map_size(const struct image_section_map* psm) DECLSPE
static inline BOOL image_find_section(struct image_file_map* fmap, const char* name,
struct image_section_map* ism)
{
switch (fmap->modtype)
while (fmap)
{
case DMT_ELF: return elf_find_section(fmap, name, SHT_NULL, ism);
case DMT_MACHO: return macho_find_section(fmap, NULL, name, ism);
case DMT_PE: return pe_find_section(fmap, name, ism);
default: assert(0); return FALSE;
switch (fmap->modtype)
{
case DMT_ELF:
if (elf_find_section(fmap, name, ism)) return TRUE;
break;
case DMT_MACHO:
if (macho_find_section(fmap, NULL, name, ism)) return TRUE;
break;
case DMT_PE:
if (pe_find_section(fmap, name, ism)) return TRUE;
break;
default: assert(0); return FALSE;
}
fmap = fmap->alternate;
}
ism->fmap = NULL;
ism->sidx = -1;
return FALSE;
}
static inline const char* image_map_section(struct image_section_map* ism)

1
dlls/dbghelp/macho_module.c
View File

@ -680,6 +680,7 @@ static BOOL macho_map_file(struct process *pcs, const WCHAR *filenameW,
reset_file_map(ifm);
ifm->modtype = DMT_MACHO;
ifm->alternate = NULL;
ifm->addr_size = (pcs->is_64bit) ? 64 : 32;
fmap->header_size = (pcs->is_64bit) ? sizeof(struct mach_header_64) : sizeof(struct mach_header);

1
dlls/dbghelp/pe_module.c
View File

@ -211,6 +211,7 @@ static BOOL pe_map_file(HANDLE file, struct image_file_map* fmap, enum module_ty
void* mapping;
fmap->modtype = mt;
fmap->alternate = NULL;
fmap->u.pe.hMap = CreateFileMappingW(file, NULL, PAGE_READONLY, 0, 0, NULL);
if (fmap->u.pe.hMap == 0) return FALSE;
fmap->u.pe.full_count = 0;