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dbghelp: Cleanups for module loading (lookups on module name and image name are two different things) 

- split up module_find_by_name in two different functions:
  + reused module_find_by_name which looks upon the module name
  + added module_is_already_loaded which looks upon the image name
- cleanup module loading using these functions (removed extra parameter
  to pe_load_module_from_pcs)
This commit is contained in:
Eric Pouech 2007-03-13 17:33:02 +01:00 committed by Alexandre Julliard
parent 59f93f64b7
commit ade919c603
6 changed files with 79 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
dlls/dbghelp/dbghelp_private.h
View File

@ -441,10 +441,13 @@ extern struct module*
enum module_type type);
extern struct module*
module_find_by_name(const struct process* pcs,
const WCHAR* name, enum module_type type);
const WCHAR* name);
extern struct module*
module_find_by_nameA(const struct process* pcs,
const char* name, enum module_type type);
const char* name);
extern struct module*
module_is_already_loaded(const struct process* pcs,
const WCHAR* imgname);
extern BOOL module_get_debug(struct module_pair*);
extern struct module*
module_new(struct process* pcs, const WCHAR* name,
@ -479,7 +482,7 @@ extern struct module*
HANDLE hFile, DWORD base, DWORD size);
extern struct module*
pe_load_module_from_pcs(struct process* pcs, const WCHAR* name,
const WCHAR* mod_name, DWORD base, DWORD size);
DWORD base, DWORD size);
extern BOOL pe_load_debug_info(const struct process* pcs,
struct module* module);
/* source.c */

2
dlls/dbghelp/elf_module.c
View File

@ -1348,7 +1348,7 @@ static BOOL elf_search_and_load_file(struct process* pcs, const WCHAR* filename,
static WCHAR S_libstdcPPW[] = {'l','i','b','s','t','d','c','+','+','\0'};
if (filename == NULL || *filename == '\0') return FALSE;
if ((module = module_find_by_name(pcs, filename, DMT_ELF)))
if ((module = module_is_already_loaded(pcs, filename)))
{
elf_info->module = module;
module->elf_info->elf_mark = 1;

101
dlls/dbghelp/module.c
View File

@ -190,46 +190,50 @@ struct module* module_new(struct process* pcs, const WCHAR* name,
* module_find_by_name
*
*/
struct module* module_find_by_name(const struct process* pcs,
const WCHAR* name, enum module_type type)
struct module* module_find_by_name(const struct process* pcs, const WCHAR* name)
{
struct module* module;
if (type == DMT_UNKNOWN)
for (module = pcs->lmodules; module; module = module->next)
{
if ((module = module_find_by_name(pcs, name, DMT_PE)) ||
(module = module_find_by_name(pcs, name, DMT_ELF)))
return module;
}
else
{
WCHAR modname[MAX_PATH];
for (module = pcs->lmodules; module; module = module->next)
{
if (type == module->type &&
!strcmpiW(name, module->module.LoadedImageName))
return module;
}
module_fill_module(name, modname, sizeof(modname));
for (module = pcs->lmodules; module; module = module->next)
{
if (type == module->type &&
!strcmpiW(modname, module->module.ModuleName))
return module;
}
if (!strcmpiW(name, module->module.ModuleName)) return module;
}
SetLastError(ERROR_INVALID_NAME);
return NULL;
}
struct module* module_find_by_nameA(const struct process* pcs,
const char* name, enum module_type type)
struct module* module_find_by_nameA(const struct process* pcs, const char* name)
{
WCHAR wname[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, name, -1, wname, sizeof(wname) / sizeof(WCHAR));
return module_find_by_name(pcs, wname, type);
return module_find_by_name(pcs, wname);
}
/***********************************************************************
* module_is_already_loaded
*
*/
struct module* module_is_already_loaded(const struct process* pcs, const WCHAR* name)
{
struct module* module;
const WCHAR* filename;
/* first compare the loaded image name... */
for (module = pcs->lmodules; module; module = module->next)
{
if (!strcmpiW(name, module->module.LoadedImageName))
return module;
}
/* then compare the standard filenames (without the path) ... */
filename = get_filename(name, NULL);
for (module = pcs->lmodules; module; module = module->next)
{
if (!strcmpiW(filename, get_filename(module->module.LoadedImageName, NULL)))
return module;
}
SetLastError(ERROR_INVALID_NAME);
return NULL;
}
/***********************************************************************
@ -511,33 +515,36 @@ DWORD64 WINAPI SymLoadModuleExW(HANDLE hProcess, HANDLE hFile, PCWSTR wImageNam
/* this is a Wine extension to the API just to redo the synchronisation */
if (!wImageName && !hFile) return 0;
if (module_is_elf_container_loaded(pcs, wImageName, BaseOfDll))
/* check if the module is already loaded, or if it's a builtin PE module with
* an containing ELF module
*/
if (wImageName)
{
/* force the loading of DLL as builtin */
if ((module = pe_load_module_from_pcs(pcs, wImageName, wModuleName,
BaseOfDll, SizeOfDll)))
goto done;
WARN("Couldn't locate %s\n", debugstr_w(wImageName));
return 0;
module = module_is_already_loaded(pcs, wImageName);
if (!module && module_is_elf_container_loaded(pcs, wImageName, BaseOfDll))
{
/* force the loading of DLL as builtin */
module = pe_load_module_from_pcs(pcs, wImageName, BaseOfDll, SizeOfDll);
}
}
TRACE("Assuming %s as native DLL\n", debugstr_w(wImageName));
if (!(module = pe_load_module(pcs, wImageName, hFile, BaseOfDll, SizeOfDll)))
if (!module)
{
/* otherwise, try a regular PE module */
if (!(module = pe_load_module(pcs, wImageName, hFile, BaseOfDll, SizeOfDll)))
{
/* and finally and ELF module */
if (module_get_type_by_name(wImageName) == DMT_ELF)
module = elf_load_module(pcs, wImageName, BaseOfDll);
}
}
if (!module)
{
if (module_get_type_by_name(wImageName) == DMT_ELF &&
(module = elf_load_module(pcs, wImageName, BaseOfDll)))
goto done;
FIXME("Should have successfully loaded debug information for image %s\n",
debugstr_w(wImageName));
if ((module = pe_load_module_from_pcs(pcs, wImageName, wModuleName,
BaseOfDll, SizeOfDll)))
goto done;
WARN("Couldn't locate %s\n", debugstr_w(wImageName));
return 0;
}
module->module.NumSyms = module->ht_symbols.num_elts;
done:
/* by default pe_load_module fills module.ModuleName from a derivation
* of ImageName. Overwrite it, if we have better information
/* by default module_new fills module.ModuleName from a derivation
* of LoadedImageName. Overwrite it, if we have better information
*/
if (wModuleName)
module_set_module(module, wModuleName);

54
dlls/dbghelp/pe_module.c
View File

@ -329,17 +329,13 @@ struct module* pe_load_module(struct process* pcs, const WCHAR* name,
struct module* module = NULL;
BOOL opened = FALSE;
HANDLE hMap;
void* mapping;
WCHAR loaded_name[MAX_PATH];
loaded_name[0] = '\0';
if (!hFile)
{
if (!name)
{
/* FIXME SetLastError */
return NULL;
}
assert(name);
if ((hFile = FindExecutableImageExW(name, pcs->search_path, loaded_name, NULL, NULL)) == NULL)
return NULL;
@ -348,9 +344,11 @@ struct module* pe_load_module(struct process* pcs, const WCHAR* name,
else if (name) strcpyW(loaded_name, name);
else if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
FIXME("Trouble ahead (no module name passed in deferred mode)\n");
if (!(module = module_find_by_name(pcs, loaded_name, DMT_PE)) &&
(hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
{
void* mapping;
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
{
IMAGE_NT_HEADERS* nth = RtlImageNtHeader(mapping);
@ -400,41 +398,21 @@ BOOL pe_load_nt_header(HANDLE hProc, DWORD base, IMAGE_NT_HEADERS* nth)
*
*/
struct module* pe_load_module_from_pcs(struct process* pcs, const WCHAR* name,
const WCHAR* mod_name, DWORD base, DWORD size)
DWORD base, DWORD size)
{
struct module* module;
const WCHAR* ptr;
struct module* module = NULL;
if ((module = module_find_by_name(pcs, name, DMT_PE))) return module;
if (mod_name) ptr = mod_name;
else
if (base && pcs->dbg_hdr_addr)
{
for (ptr = name + strlenW(name) - 1; ptr >= name; ptr--)
{
if (*ptr == '/' || *ptr == '\\')
{
ptr++;
break;
}
}
}
if (ptr && (module = module_find_by_name(pcs, ptr, DMT_PE))) return module;
if (base)
{
if (pcs->dbg_hdr_addr)
{
IMAGE_NT_HEADERS nth;
IMAGE_NT_HEADERS nth;
if (pe_load_nt_header(pcs->handle, base, &nth))
{
if (!size) size = nth.OptionalHeader.SizeOfImage;
module = module_new(pcs, name, DMT_PE, FALSE, base, size,
nth.FileHeader.TimeDateStamp,
nth.OptionalHeader.CheckSum);
}
} else if (size)
if (pe_load_nt_header(pcs->handle, base, &nth))
{
if (!size) size = nth.OptionalHeader.SizeOfImage;
module = module_new(pcs, name, DMT_PE, FALSE, base, size,
0 /* FIXME */, 0 /* FIXME */);
nth.FileHeader.TimeDateStamp,
nth.OptionalHeader.CheckSum);
}
}
return module;
}

2
dlls/dbghelp/source.c
View File

@ -133,7 +133,7 @@ BOOL WINAPI SymEnumSourceFiles(HANDLE hProcess, ULONG64 ModBase, PCSTR Mask,
{
if (Mask[0] == '!')
{
pair.requested = module_find_by_nameA(pair.pcs, Mask + 1, DMT_UNKNOWN);
pair.requested = module_find_by_nameA(pair.pcs, Mask + 1);
if (!module_get_debug(&pair)) return FALSE;
}
else

2
dlls/dbghelp/symbol.c
View File

@ -1174,7 +1174,7 @@ BOOL WINAPI SymFromName(HANDLE hProcess, PCSTR Name, PSYMBOL_INFO Symbol)
assert(name - Name < sizeof(tmp));
memcpy(tmp, Name, name - Name);
tmp[name - Name] = '\0';
module = module_find_by_nameA(pcs, tmp, DMT_UNKNOWN);
module = module_find_by_nameA(pcs, tmp);
return find_name(pcs, module, name + 1, Symbol);
}
for (module = pcs->lmodules; module; module = module->next)