[reactos] 84/179: [WINESYNC] dbghelp: Move alternate file map pointer to generic image_file_map.
16 Sep
2020
16 Sep
'20
8:38 a.m.
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=2fc432db924a44a30d144…
commit 2fc432db924a44a30d144dbfd587446477fd5440
Author: winesync <ros-dev(a)reactos.org>
AuthorDate: Fri Sep 11 16:57:26 2020 +0200
Commit: Jérôme Gardou <jerome.gardou(a)reactos.org>
CommitDate: Wed Sep 16 10:35:44 2020 +0200
[WINESYNC] dbghelp: Move alternate file map pointer to generic image_file_map.
Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
wine commit id 02dfd959ca6f2295ca279ab65f6b6429cd53673c by Jacek Caban
<jacek(a)codeweavers.com>
---
dll/win32/dbghelp/elf_module.c | 61 ++++++++++++++++++++++++++-------------
dll/win32/dbghelp/image_private.h | 29 ++++++++++++++-----
dll/win32/dbghelp/macho_module.c | 1 +
dll/win32/dbghelp/pe_module.c | 1 +
sdk/tools/winesync/dbghelp.cfg | 2 +-
5 files changed, 65 insertions(+), 29 deletions(-)
diff --git a/dll/win32/dbghelp/elf_module.c b/dll/win32/dbghelp/elf_module.c
index 1013b70749a..a5b7c1dc5ca 100644
--- a/dll/win32/dbghelp/elf_module.c
+++ b/dll/win32/dbghelp/elf_module.c
@@ -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;
}
diff --git a/dll/win32/dbghelp/image_private.h b/dll/win32/dbghelp/image_private.h
index 2d9b354f7a6..072c956c3e5 100644
--- a/dll/win32/dbghelp/image_private.h
+++ b/dll/win32/dbghelp/image_private.h
@@ -63,6 +63,7 @@ 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
@@ -71,7 +72,6 @@ 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;
#if defined(__ELF__) && !defined(DBGHELP_STATIC_LIB)
Elf64_Ehdr elfhdr;
@@ -132,7 +132,7 @@ 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;
@@ -155,15 +155,28 @@ 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)
{
+ switch (fmap->modtype)
+ {
#ifndef DBGHELP_STATIC_LIB
- case DMT_ELF: return elf_find_section(fmap, name, SHT_NULL, ism);
- case DMT_MACHO: return macho_find_section(fmap, NULL, name, ism);
-#endif
- case DMT_PE: return pe_find_section(fmap, name, ism);
- default: assert(0); return FALSE;
+ 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;
+#endif
+ 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)
diff --git a/dll/win32/dbghelp/macho_module.c b/dll/win32/dbghelp/macho_module.c
index f957439d435..1df48c8a951 100644
--- a/dll/win32/dbghelp/macho_module.c
+++ b/dll/win32/dbghelp/macho_module.c
@@ -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);
diff --git a/dll/win32/dbghelp/pe_module.c b/dll/win32/dbghelp/pe_module.c
index 1217a8edd0c..2134804ccaa 100644
--- a/dll/win32/dbghelp/pe_module.c
+++ b/dll/win32/dbghelp/pe_module.c
@@ -213,6 +213,7 @@ 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;
diff --git a/sdk/tools/winesync/dbghelp.cfg b/sdk/tools/winesync/dbghelp.cfg
index b5e65c980e9..d04078ef2a3 100644
--- a/sdk/tools/winesync/dbghelp.cfg
+++ b/sdk/tools/winesync/dbghelp.cfg
@@ -4,4 +4,4 @@ files:
include/dbghelp.h: sdk/include/psdk/dbghelp.h
include/wine/mscvpdb.h: sdk/include/reactos/wine/mscvpdb.h
tags:
- wine: a3e1c7fa02351b032de60fc2a685f14e9f7308fe
+ wine: 02dfd959ca6f2295ca279ab65f6b6429cd53673c
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