Sweden-Number/dlls/dbghelp/module.c

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/*
* File module.c - module handling for the wine debugger
*
* Copyright (C) 1993, Eric Youngdale.
* 2000-2004, Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "dbghelp_private.h"
#include "psapi.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
static void module_fill_module(const char* in, char* out, unsigned size)
{
const char* ptr;
unsigned len;
for (ptr = in + strlen(in) - 1;
*ptr != '/' && *ptr != '\\' && ptr >= in;
ptr--);
if (ptr < in || *ptr == '/' || *ptr == '\\') ptr++;
strncpy(out, ptr, size);
out[size - 1] = '\0';
len = strlen(out);
if (len > 4 &&
(!strcasecmp(&out[len - 4], ".dll") || !strcasecmp(&out[len - 4], ".exe")))
out[len - 4] = '\0';
else
{
if (len > 7 &&
(!strcasecmp(&out[len - 7], ".dll.so") || !strcasecmp(&out[len - 7], ".exe.so")))
strcpy(&out[len - 7], "<elf>");
else if (len > 7 &&
out[len - 7] == '.' && !strcasecmp(&out[len - 3], ".so"))
{
if (len + 3 < size) strcpy(&out[len - 3], "<elf>");
else WARN("Buffer too short: %s\n", out);
}
}
while ((*out = tolower(*out))) out++;
}
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/***********************************************************************
* Creates and links a new module to a process
*/
struct module* module_new(struct process* pcs, const char* name,
enum module_type type,
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unsigned long mod_addr, unsigned long size,
unsigned long stamp, unsigned long checksum)
{
struct module* module;
if (!(module = HeapAlloc(GetProcessHeap(), 0, sizeof(*module))))
return NULL;
memset(module, 0, sizeof(*module));
module->next = pcs->lmodules;
pcs->lmodules = module;
TRACE("=> %s %08lx-%08lx %s\n",
type == DMT_ELF ? "ELF" : (type == DMT_PE ? "PE" : "---"),
mod_addr, mod_addr + size, name);
pool_init(&module->pool, 65536);
module->module.SizeOfStruct = sizeof(module->module);
module->module.BaseOfImage = mod_addr;
module->module.ImageSize = size;
module_fill_module(name, module->module.ModuleName, sizeof(module->module.ModuleName));
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module->module.ImageName[0] = '\0';
strncpy(module->module.LoadedImageName, name,
sizeof(module->module.LoadedImageName));
module->module.LoadedImageName[sizeof(module->module.LoadedImageName) - 1] = '\0';
module->module.SymType = SymNone;
module->module.NumSyms = 0;
module->module.TimeDateStamp = stamp;
module->module.CheckSum = checksum;
module->type = type;
module->sortlist_valid = FALSE;
module->addr_sorttab = NULL;
/* FIXME: this seems a bit too high (on a per module basis)
* need some statistics about this
*/
hash_table_init(&module->pool, &module->ht_symbols, 4096);
hash_table_init(&module->pool, &module->ht_types, 4096);
module->sources_used = 0;
module->sources_alloc = 0;
module->sources = 0;
return module;
}
/***********************************************************************
* module_find_by_name
*
*/
struct module* module_find_by_name(const struct process* pcs,
const char* name, enum module_type type)
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{
struct module* module;
if (type == DMT_UNKNOWN)
{
if ((module = module_find_by_name(pcs, name, DMT_PE)) ||
(module = module_find_by_name(pcs, name, DMT_ELF)))
return module;
}
else
{
for (module = pcs->lmodules; module; module = module->next)
{
if (type == module->type && !strcasecmp(name, module->module.LoadedImageName))
return module;
}
for (module = pcs->lmodules; module; module = module->next)
{
if (type == module->type && !strcasecmp(name, module->module.ModuleName))
return module;
}
}
SetLastError(ERROR_INVALID_NAME);
return NULL;
}
/***********************************************************************
* module_get_container
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*
*/
struct module* module_get_container(const struct process* pcs,
const struct module* inner)
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{
struct module* module;
for (module = pcs->lmodules; module; module = module->next)
{
if (module != inner &&
module->module.BaseOfImage <= inner->module.BaseOfImage &&
module->module.BaseOfImage + module->module.ImageSize >=
inner->module.BaseOfImage + inner->module.ImageSize)
return module;
}
return NULL;
}
/***********************************************************************
* module_get_containee
*
*/
struct module* module_get_containee(const struct process* pcs,
const struct module* outter)
{
struct module* module;
for (module = pcs->lmodules; module; module = module->next)
{
if (module != outter &&
outter->module.BaseOfImage <= module->module.BaseOfImage &&
outter->module.BaseOfImage + outter->module.ImageSize >=
module->module.BaseOfImage + module->module.ImageSize)
return module;
}
return NULL;
}
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/******************************************************************
* module_get_debug
*
* get the debug information from a module:
* - if the module's type is deferred, then force loading of debug info (and return
* the module itself)
* - if the module has no debug info and has an ELF container, then return the ELF
* container (and also force the ELF container's debug info loading if deferred)
* - otherwise return the module itself if it has some debug info
*/
struct module* module_get_debug(const struct process* pcs, struct module* module)
{
if (!module) return NULL;
switch (module->module.SymType)
{
case -1: break;
case SymNone:
module = module_get_container(pcs, module);
if (!module || module->module.SymType != SymDeferred) break;
/* fall through */
case SymDeferred:
switch (module->type)
{
case DMT_ELF:
elf_load_debug_info(module);
break;
case DMT_PE:
pe_load_debug_info(pcs, module);
break;
default: break;
}
break;
default: break;
}
return (module && module->module.SymType > SymNone) ? module : NULL;
}
/***********************************************************************
* module_find_by_addr
*
* either the addr where module is loaded, or any address inside the
* module
*/
struct module* module_find_by_addr(const struct process* pcs, unsigned long addr,
enum module_type type)
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{
struct module* module;
if (type == DMT_UNKNOWN)
{
if ((module = module_find_by_addr(pcs, addr, DMT_PE)) ||
(module = module_find_by_addr(pcs, addr, DMT_ELF)))
return module;
}
else
{
for (module = pcs->lmodules; module; module = module->next)
{
if (type == module->type && addr >= module->module.BaseOfImage &&
addr < module->module.BaseOfImage + module->module.ImageSize)
return module;
}
}
SetLastError(ERROR_INVALID_ADDRESS);
return module;
}
static BOOL module_is_elf_container_loaded(struct process* pcs, const char* ImageName,
const char* ModuleName)
{
char buffer[MAX_PATH];
size_t len;
struct module* module;
if (!ModuleName)
{
module_fill_module(ImageName, buffer, sizeof(buffer));
ModuleName = buffer;
}
len = strlen(ModuleName);
for (module = pcs->lmodules; module; module = module->next)
{
if (!strncasecmp(module->module.ModuleName, ModuleName, len) &&
module->type == DMT_ELF &&
!strcmp(module->module.ModuleName + len, "<elf>"))
return TRUE;
}
return FALSE;
}
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/***********************************************************************
* SymLoadModule (DBGHELP.@)
*/
DWORD WINAPI SymLoadModule(HANDLE hProcess, HANDLE hFile, char* ImageName,
char* ModuleName, DWORD BaseOfDll, DWORD SizeOfDll)
{
struct process* pcs;
struct module* module = NULL;
TRACE("(%p %p %s %s %08lx %08lx)\n",
hProcess, hFile, debugstr_a(ImageName), debugstr_a(ModuleName),
BaseOfDll, SizeOfDll);
pcs = process_find_by_handle(hProcess);
if (!pcs) return FALSE;
/* force transparent ELF loading / unloading */
elf_synchronize_module_list(pcs);
/* this is a Wine extension to the API just to redo the synchronisation */
if (!ImageName && !hFile) return 0;
if (module_is_elf_container_loaded(pcs, ImageName, ModuleName))
{
/* force the loading of DLL as builtin */
if ((module = pe_load_module_from_pcs(pcs, ImageName, ModuleName, BaseOfDll, SizeOfDll)))
goto done;
WARN("Couldn't locate %s\n", ImageName);
return 0;
}
TRACE("Assuming %s as native DLL\n", ImageName);
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if (!(module = pe_load_module(pcs, ImageName, hFile, BaseOfDll, SizeOfDll)))
{
unsigned len = strlen(ImageName);
if (!strcmp(ImageName + len - 3, ".so") &&
(module = elf_load_module(pcs, ImageName))) goto done;
FIXME("should no longer happen\n");
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if ((module = pe_load_module_from_pcs(pcs, ImageName, ModuleName, BaseOfDll, SizeOfDll)))
goto done;
WARN("Couldn't locate %s\n", ImageName);
return 0;
}
done:
/* by default pe_load_module fills module.ModuleName from a derivation
* of ImageName. Overwrite it, if we have better information
*/
if (ModuleName)
{
strncpy(module->module.ModuleName, ModuleName,
sizeof(module->module.ModuleName));
module->module.ModuleName[sizeof(module->module.ModuleName) - 1] = '\0';
}
strncpy(module->module.ImageName, ImageName, sizeof(module->module.ImageName));
module->module.ImageName[sizeof(module->module.ImageName) - 1] = '\0';
return module->module.BaseOfImage;
}
/******************************************************************
* module_remove
*
*/
BOOL module_remove(struct process* pcs, struct module* module)
{
struct module** p;
TRACE("%s (%p)\n", module->module.ModuleName, module);
hash_table_destroy(&module->ht_symbols);
hash_table_destroy(&module->ht_types);
HeapFree(GetProcessHeap(), 0, (char*)module->sources);
HeapFree(GetProcessHeap(), 0, module->addr_sorttab);
pool_destroy(&module->pool);
for (p = &pcs->lmodules; *p; p = &(*p)->next)
{
if (*p == module)
{
*p = module->next;
HeapFree(GetProcessHeap(), 0, module);
return TRUE;
}
}
FIXME("This shouldn't happen\n");
return FALSE;
}
/******************************************************************
* SymUnloadModule (DBGHELP.@)
*
*/
BOOL WINAPI SymUnloadModule(HANDLE hProcess, DWORD BaseOfDll)
{
struct process* pcs;
struct module* module;
pcs = process_find_by_handle(hProcess);
if (!pcs) return FALSE;
module = module_find_by_addr(pcs, BaseOfDll, DMT_UNKNOWN);
if (!module) return FALSE;
return module_remove(pcs, module);
}
/******************************************************************
* SymEnumerateModules (DBGHELP.@)
*
*/
BOOL WINAPI SymEnumerateModules(HANDLE hProcess,
PSYM_ENUMMODULES_CALLBACK EnumModulesCallback,
PVOID UserContext)
{
struct process* pcs = process_find_by_handle(hProcess);
struct module* module;
if (!pcs) return FALSE;
for (module = pcs->lmodules; module; module = module->next)
{
if (!(dbghelp_options & SYMOPT_WINE_WITH_ELF_MODULES) && module->type != DMT_PE)
continue;
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if (!EnumModulesCallback(module->module.ModuleName,
module->module.BaseOfImage, UserContext))
break;
}
return TRUE;
}
/******************************************************************
* EnumerateLoadedModules (DBGHELP.@)
*
*/
BOOL WINAPI EnumerateLoadedModules(HANDLE hProcess,
PENUMLOADED_MODULES_CALLBACK EnumLoadedModulesCallback,
PVOID UserContext)
{
HMODULE* hMods;
char base[256], mod[256];
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DWORD i, sz;
MODULEINFO mi;
hMods = HeapAlloc(GetProcessHeap(), 0, sz);
if (!hMods) return FALSE;
if (!EnumProcessModules(hProcess, hMods, 256 * sizeof(hMods[0]), &sz))
{
/* hProcess should also be a valid process handle !! */
FIXME("If this happens, bump the number in mod\n");
HeapFree(GetProcessHeap(), 0, hMods);
return FALSE;
}
sz /= sizeof(HMODULE);
for (i = 0; i < sz; i++)
{
if (!GetModuleInformation(hProcess, hMods[i], &mi, sizeof(mi)) ||
!GetModuleBaseNameA(hProcess, hMods[i], base, sizeof(base)))
continue;
module_fill_module(base, mod, sizeof(mod));
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EnumLoadedModulesCallback(mod, (DWORD)mi.lpBaseOfDll, mi.SizeOfImage,
UserContext);
}
HeapFree(GetProcessHeap(), 0, hMods);
return sz != 0 && i == sz;
}
/******************************************************************
* SymGetModuleInfo (DBGHELP.@)
*
*/
BOOL WINAPI SymGetModuleInfo(HANDLE hProcess, DWORD dwAddr,
PIMAGEHLP_MODULE ModuleInfo)
{
struct process* pcs = process_find_by_handle(hProcess);
struct module* module;
if (!pcs) return FALSE;
if (ModuleInfo->SizeOfStruct < sizeof(*ModuleInfo)) return FALSE;
module = module_find_by_addr(pcs, dwAddr, DMT_UNKNOWN);
if (!module) return FALSE;
*ModuleInfo = module->module;
if (module->module.SymType <= SymNone)
{
module = module_get_container(pcs, module);
if (module && module->module.SymType > SymNone)
ModuleInfo->SymType = module->module.SymType;
}
return TRUE;
}
/***********************************************************************
* SymGetModuleBase (IMAGEHLP.@)
*/
DWORD WINAPI SymGetModuleBase(HANDLE hProcess, DWORD dwAddr)
{
struct process* pcs = process_find_by_handle(hProcess);
struct module* module;
if (!pcs) return 0;
module = module_find_by_addr(pcs, dwAddr, DMT_UNKNOWN);
if (!module) return 0;
return module->module.BaseOfImage;
}
/******************************************************************
* module_reset_debug_info
* Removes any debug information linked to a given module.
*/
void module_reset_debug_info(struct module* module)
{
module->sortlist_valid = TRUE;
module->addr_sorttab = NULL;
hash_table_destroy(&module->ht_symbols);
module->ht_symbols.num_buckets = 0;
module->ht_symbols.buckets = NULL;
hash_table_destroy(&module->ht_types);
module->ht_types.num_buckets = 0;
module->ht_types.buckets = NULL;
hash_table_destroy(&module->ht_symbols);
module->sources_used = module->sources_alloc = 0;
module->sources = NULL;
}