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dbghelp: Don't insert dwz file map into module's file maps' chain.

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Signed-off-by: Eric Pouech <epouech@codeweavers.com>
This commit is contained in:
Eric Pouech 2023-09-15 18:44:28 +02:00 committed by Alexandre Julliard
parent 75f2ae3453
commit 776ba1304e
1 changed files with 22 additions and 33 deletions
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55
dlls/dbghelp/module.c
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@ -570,7 +570,7 @@ static BOOL image_check_debug_link_gnu_id(const WCHAR* file, struct image_file_m
* is the global debug file directory, and execdir has been turned
* into a relative path)." (from GDB manual)
*/
static BOOL image_locate_debug_link(const struct module* module, struct image_file_map* fmap, const char* filename, DWORD crc)
static struct image_file_map* image_locate_debug_link(const struct module* module, const char* filename, DWORD crc)
{
static const WCHAR globalDebugDirW[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'};
static const WCHAR dotDebugW[] = {'.','d','e','b','u','g','/'};
@ -582,7 +582,7 @@ static BOOL image_locate_debug_link(const struct module* module, struct image_fi
struct image_file_map* fmap_link = NULL;
fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link));
if (!fmap_link) return FALSE;
if (!fmap_link) return NULL;
filename_len = MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, NULL, 0);
path_len = lstrlenW(module->module.LoadedImageName);
@ -630,13 +630,12 @@ static BOOL image_locate_debug_link(const struct module* module, struct image_fi
WARN("Couldn't locate or map %s\n", filename);
HeapFree(GetProcessHeap(), 0, p);
HeapFree(GetProcessHeap(), 0, fmap_link);
return FALSE;
return NULL;
found:
TRACE("Located debug information file %s at %s\n", filename, debugstr_w(p));
HeapFree(GetProcessHeap(), 0, p);
fmap->alternate = fmap_link;
return TRUE;
return fmap_link;
}
static WCHAR* append_hex(WCHAR* dst, const BYTE* id, const BYTE* end)
@ -655,7 +654,7 @@ static WCHAR* append_hex(WCHAR* dst, const BYTE* id, const BYTE* end)
*
* Try to find the .so file containing the debug info out of the build-id note information
*/
static BOOL image_locate_build_id_target(struct image_file_map* fmap, const BYTE* id, unsigned idlen)
static struct image_file_map* image_locate_build_id_target(const BYTE* id, unsigned idlen)
{
struct image_file_map* fmap_link = NULL;
DWORD sz;
@ -663,7 +662,7 @@ static BOOL image_locate_build_id_target(struct image_file_map* fmap, const BYTE
WCHAR* z;
fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link));
if (!fmap_link) return FALSE;
if (!fmap_link) return NULL;
p = malloc(sizeof(L"/usr/lib/debug/.build-id/") +
(idlen * 2 + 1) * sizeof(WCHAR) + sizeof(L".debug"));
@ -685,8 +684,7 @@ static BOOL image_locate_build_id_target(struct image_file_map* fmap, const BYTE
if (image_check_debug_link_gnu_id(p, fmap_link, id, idlen))
{
free(p);
fmap->alternate = fmap_link;
return TRUE;
return fmap_link;
}
sz = GetEnvironmentVariableW(L"WINEHOMEDIR", NULL, 0);
@ -707,8 +705,7 @@ static BOOL image_locate_build_id_target(struct image_file_map* fmap, const BYTE
if (image_check_debug_link_gnu_id(p, fmap_link, id, idlen))
{
free(p);
fmap->alternate = fmap_link;
return TRUE;
return fmap_link;
}
}
@ -716,7 +713,7 @@ static BOOL image_locate_build_id_target(struct image_file_map* fmap, const BYTE
fail:
free(p);
HeapFree(GetProcessHeap(), 0, fmap_link);
return FALSE;
return NULL;
}
/******************************************************************
@ -734,11 +731,7 @@ struct image_file_map* image_load_debugaltlink(struct image_file_map* fmap, stru
struct image_file_map* fmap_link = NULL;
BOOL ret = FALSE;
for (; fmap; fmap = fmap->alternate)
{
if (image_find_section(fmap, ".gnu_debugaltlink", &debugaltlink_sect)) break;
}
if (!fmap)
if (!image_find_section(fmap, ".gnu_debugaltlink", &debugaltlink_sect))
{
TRACE("No .gnu_debugaltlink section found for %s\n", debugstr_w(module->modulename));
return NULL;
@ -806,12 +799,8 @@ struct image_file_map* image_load_debugaltlink(struct image_file_map* fmap, stru
{
HeapFree(GetProcessHeap(), 0, fmap_link);
/* didn't work out with filename, try file lookup based on build-id */
ret = image_locate_build_id_target(fmap, id, idlen);
if (!ret)
{
if (!(fmap_link = image_locate_build_id_target(id, idlen)))
WARN("Couldn't find a match for .gnu_debugaltlink section %s for %s\n", data, debugstr_w(module->modulename));
fmap_link = NULL;
}
}
}
}
@ -829,33 +818,30 @@ struct image_file_map* image_load_debugaltlink(struct image_file_map* fmap, stru
*/
BOOL image_check_alternate(struct image_file_map* fmap, const struct module* module)
{
BOOL ret = FALSE;
BOOL found = FALSE;
struct image_section_map buildid_sect, debuglink_sect;
struct image_file_map* fmap_link = NULL;
/* if present, add the .gnu_debuglink file as an alternate to current one */
if (image_find_section(fmap, ".note.gnu.build-id", &buildid_sect))
{
const UINT32* note;
found = TRUE;
note = (const UINT32*)image_map_section(&buildid_sect);
if (note != IMAGE_NO_MAP)
{
/* the usual ELF note structure: name-size desc-size type <name> <desc> */
if (note[2] == NOTE_GNU_BUILD_ID)
{
ret = image_locate_build_id_target(fmap, (const BYTE*)(note + 3 + ((note[0] + 3) >> 2)), note[1]);
fmap_link = image_locate_build_id_target((const BYTE*)(note + 3 + ((note[0] + 3) >> 2)), note[1]);
}
}
image_unmap_section(&buildid_sect);
}
/* if present, add the .gnu_debuglink file as an alternate to current one */
if (!ret && image_find_section(fmap, ".gnu_debuglink", &debuglink_sect))
if (!fmap_link && image_find_section(fmap, ".gnu_debuglink", &debuglink_sect))
{
const char* dbg_link;
found = TRUE;
dbg_link = image_map_section(&debuglink_sect);
if (dbg_link != IMAGE_NO_MAP)
{
@ -866,14 +852,17 @@ BOOL image_check_alternate(struct image_file_map* fmap, const struct module* mod
* 3/ CRC of the linked file
*/
DWORD crc = *(const DWORD*)(dbg_link + ((DWORD_PTR)(strlen(dbg_link) + 4) & ~3));
ret = image_locate_debug_link(module, fmap, dbg_link, crc);
if (!ret)
WARN("Couldn't load linked debug file for %s\n",
debugstr_w(module->modulename));
if (!(fmap_link = image_locate_debug_link(module, dbg_link, crc)))
WARN("Couldn't load linked debug file for %s\n", debugstr_w(module->modulename));
}
image_unmap_section(&debuglink_sect);
}
return found ? ret : TRUE;
if (fmap_link)
{
fmap->alternate = fmap_link;
return TRUE;
}
return FALSE;
}
/***********************************************************************