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wine/dlls/dbghelp/path.c
Eric Pouech 1acbb1c0ed dbghelp: Restructure internal PDB information.
2011-01-10 12:51:39 +01:00

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/*
* File path.c - managing path in debugging environments
*
* Copyright (C) 2004,2008, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "dbghelp_private.h"
#include "winnls.h"
#include "winternl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
static inline BOOL is_sep(char ch) {return ch == '/' || ch == '\\';}
static inline BOOL is_sepW(WCHAR ch) {return ch == '/' || ch == '\\';}
static inline const char* file_name(const char* str)
{
const char* p;
for (p = str + strlen(str) - 1; p >= str && !is_sep(*p); p--);
return p + 1;
}
static inline const WCHAR* file_nameW(const WCHAR* str)
{
const WCHAR* p;
for (p = str + strlenW(str) - 1; p >= str && !is_sepW(*p); p--);
return p + 1;
}
/******************************************************************
* FindDebugInfoFile (DBGHELP.@)
*
*/
HANDLE WINAPI FindDebugInfoFile(PCSTR FileName, PCSTR SymbolPath, PSTR DebugFilePath)
{
HANDLE h;
h = CreateFileA(FileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE)
{
if (!SearchPathA(SymbolPath, file_name(FileName), NULL, MAX_PATH, DebugFilePath, NULL))
return NULL;
h = CreateFileA(DebugFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
}
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindDebugInfoFileEx (DBGHELP.@)
*
*/
HANDLE WINAPI FindDebugInfoFileEx(PCSTR FileName, PCSTR SymbolPath,
PSTR DebugFilePath,
PFIND_DEBUG_FILE_CALLBACK Callback,
PVOID CallerData)
{
FIXME("(%s %s %p %p %p): stub\n",
debugstr_a(FileName), debugstr_a(SymbolPath), debugstr_a(DebugFilePath), Callback, CallerData);
return NULL;
}
/******************************************************************
* FindExecutableImageExW (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImageExW(PCWSTR FileName, PCWSTR SymbolPath, PWSTR ImageFilePath,
PFIND_EXE_FILE_CALLBACKW Callback, PVOID user)
{
HANDLE h;
if (Callback) FIXME("Unsupported callback yet\n");
if (!SearchPathW(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
return NULL;
h = CreateFileW(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindExecutableImageEx (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImageEx(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath,
PFIND_EXE_FILE_CALLBACK Callback, PVOID user)
{
HANDLE h;
if (Callback) FIXME("Unsupported callback yet\n");
if (!SearchPathA(SymbolPath, FileName, NULL, MAX_PATH, ImageFilePath, NULL))
return NULL;
h = CreateFileA(ImageFilePath, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
return (h == INVALID_HANDLE_VALUE) ? NULL : h;
}
/******************************************************************
* FindExecutableImage (DBGHELP.@)
*
*/
HANDLE WINAPI FindExecutableImage(PCSTR FileName, PCSTR SymbolPath, PSTR ImageFilePath)
{
return FindExecutableImageEx(FileName, SymbolPath, ImageFilePath, NULL, NULL);
}
/***********************************************************************
* MakeSureDirectoryPathExists (DBGHELP.@)
*/
BOOL WINAPI MakeSureDirectoryPathExists(PCSTR DirPath)
{
char path[MAX_PATH];
const char *p = DirPath;
int n;
if (p[0] && p[1] == ':') p += 2;
while (*p == '\\') p++; /* skip drive root */
while ((p = strchr(p, '\\')) != NULL)
{
n = p - DirPath + 1;
memcpy(path, DirPath, n);
path[n] = '\0';
if( !CreateDirectoryA(path, NULL) &&
(GetLastError() != ERROR_ALREADY_EXISTS))
return FALSE;
p++;
}
if (GetLastError() == ERROR_ALREADY_EXISTS)
SetLastError(ERROR_SUCCESS);
return TRUE;
}
/******************************************************************
* SymMatchFileNameW (DBGHELP.@)
*
*/
BOOL WINAPI SymMatchFileNameW(PCWSTR file, PCWSTR match,
PWSTR* filestop, PWSTR* matchstop)
{
PCWSTR fptr;
PCWSTR mptr;
TRACE("(%s %s %p %p)\n",
debugstr_w(file), debugstr_w(match), filestop, matchstop);
fptr = file + strlenW(file) - 1;
mptr = match + strlenW(match) - 1;
while (fptr >= file && mptr >= match)
{
if (toupperW(*fptr) != toupperW(*mptr) && !(is_sepW(*fptr) && is_sepW(*mptr)))
break;
fptr--; mptr--;
}
if (filestop) *filestop = (PWSTR)fptr;
if (matchstop) *matchstop = (PWSTR)mptr;
return mptr == match - 1;
}
/******************************************************************
* SymMatchFileName (DBGHELP.@)
*
*/
BOOL WINAPI SymMatchFileName(PCSTR file, PCSTR match,
PSTR* filestop, PSTR* matchstop)
{
PCSTR fptr;
PCSTR mptr;
TRACE("(%s %s %p %p)\n", debugstr_a(file), debugstr_a(match), filestop, matchstop);
fptr = file + strlen(file) - 1;
mptr = match + strlen(match) - 1;
while (fptr >= file && mptr >= match)
{
if (toupper(*fptr) != toupper(*mptr) && !(is_sep(*fptr) && is_sep(*mptr)))
break;
fptr--; mptr--;
}
if (filestop) *filestop = (PSTR)fptr;
if (matchstop) *matchstop = (PSTR)mptr;
return mptr == match - 1;
}
static BOOL do_searchW(PCWSTR file, PWSTR buffer, BOOL recurse,
PENUMDIRTREE_CALLBACKW cb, PVOID user)
{
HANDLE h;
WIN32_FIND_DATAW fd;
unsigned pos;
BOOL found = FALSE;
static const WCHAR S_AllW[] = {'*','.','*','\0'};
static const WCHAR S_DotW[] = {'.','\0'};
static const WCHAR S_DotDotW[] = {'.','.','\0'};
pos = strlenW(buffer);
if (buffer[pos - 1] != '\\') buffer[pos++] = '\\';
strcpyW(buffer + pos, S_AllW);
if ((h = FindFirstFileW(buffer, &fd)) == INVALID_HANDLE_VALUE)
return FALSE;
/* doc doesn't specify how the tree is enumerated...
* doing a depth first based on, but may be wrong
*/
do
{
if (!strcmpW(fd.cFileName, S_DotW) || !strcmpW(fd.cFileName, S_DotDotW)) continue;
strcpyW(buffer + pos, fd.cFileName);
if (recurse && (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
found = do_searchW(file, buffer, TRUE, cb, user);
else if (SymMatchFileNameW(buffer, file, NULL, NULL))
{
if (!cb || cb(buffer, user)) found = TRUE;
}
} while (!found && FindNextFileW(h, &fd));
if (!found) buffer[--pos] = '\0';
FindClose(h);
return found;
}
/***********************************************************************
* SearchTreeForFileW (DBGHELP.@)
*/
BOOL WINAPI SearchTreeForFileW(PCWSTR root, PCWSTR file, PWSTR buffer)
{
TRACE("(%s, %s, %p)\n",
debugstr_w(root), debugstr_w(file), buffer);
strcpyW(buffer, root);
return do_searchW(file, buffer, TRUE, NULL, NULL);
}
/***********************************************************************
* SearchTreeForFile (DBGHELP.@)
*/
BOOL WINAPI SearchTreeForFile(PCSTR root, PCSTR file, PSTR buffer)
{
WCHAR rootW[MAX_PATH];
WCHAR fileW[MAX_PATH];
WCHAR bufferW[MAX_PATH];
BOOL ret;
MultiByteToWideChar(CP_ACP, 0, root, -1, rootW, MAX_PATH);
MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, MAX_PATH);
ret = SearchTreeForFileW(rootW, fileW, bufferW);
if (ret)
WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
return ret;
}
/******************************************************************
* EnumDirTreeW (DBGHELP.@)
*
*
*/
BOOL WINAPI EnumDirTreeW(HANDLE hProcess, PCWSTR root, PCWSTR file,
PWSTR buffer, PENUMDIRTREE_CALLBACKW cb, PVOID user)
{
TRACE("(%p %s %s %p %p %p)\n",
hProcess, debugstr_w(root), debugstr_w(file), buffer, cb, user);
strcpyW(buffer, root);
return do_searchW(file, buffer, TRUE, cb, user);
}
/******************************************************************
* EnumDirTree (DBGHELP.@)
*
*
*/
struct enum_dir_treeWA
{
PENUMDIRTREE_CALLBACK cb;
void* user;
char name[MAX_PATH];
};
static BOOL CALLBACK enum_dir_treeWA(PCWSTR name, PVOID user)
{
struct enum_dir_treeWA* edt = user;
WideCharToMultiByte(CP_ACP, 0, name, -1, edt->name, MAX_PATH, NULL, NULL);
return edt->cb(edt->name, edt->user);
}
BOOL WINAPI EnumDirTree(HANDLE hProcess, PCSTR root, PCSTR file,
PSTR buffer, PENUMDIRTREE_CALLBACK cb, PVOID user)
{
WCHAR rootW[MAX_PATH];
WCHAR fileW[MAX_PATH];
WCHAR bufferW[MAX_PATH];
struct enum_dir_treeWA edt;
BOOL ret;
edt.cb = cb;
edt.user = user;
MultiByteToWideChar(CP_ACP, 0, root, -1, rootW, MAX_PATH);
MultiByteToWideChar(CP_ACP, 0, file, -1, fileW, MAX_PATH);
if ((ret = EnumDirTreeW(hProcess, rootW, fileW, bufferW, enum_dir_treeWA, &edt)))
WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
return ret;
}
struct sffip
{
PFINDFILEINPATHCALLBACKW cb;
void* user;
};
/* checks that buffer (as found by matching the name) matches the info
* (information is based on file type)
* returns TRUE when file is found, FALSE to continue searching
* (NB this is the opposite convention of SymFindFileInPathProc)
*/
static BOOL CALLBACK sffip_cb(PCWSTR buffer, PVOID user)
{
struct sffip* s = user;
if (!s->cb) return TRUE;
/* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
* convention to stop/continue enumeration. sigh.
*/
return !(s->cb)(buffer, s->user);
}
/******************************************************************
* SymFindFileInPathW (DBGHELP.@)
*
*/
BOOL WINAPI SymFindFileInPathW(HANDLE hProcess, PCWSTR searchPath, PCWSTR full_path,
PVOID id, DWORD two, DWORD three, DWORD flags,
PWSTR buffer, PFINDFILEINPATHCALLBACKW cb,
PVOID user)
{
struct sffip s;
struct process* pcs = process_find_by_handle(hProcess);
WCHAR tmp[MAX_PATH];
WCHAR* ptr;
const WCHAR* filename;
TRACE("(hProcess = %p, searchPath = %s, full_path = %s, id = %p, two = 0x%08x, three = 0x%08x, flags = 0x%08x, buffer = %p, cb = %p, user = %p)\n",
hProcess, debugstr_w(searchPath), debugstr_w(full_path),
id, two, three, flags, buffer, cb, user);
if (!pcs) return FALSE;
if (!searchPath) searchPath = pcs->search_path;
s.cb = cb;
s.user = user;
filename = file_nameW(full_path);
/* first check full path to file */
if (sffip_cb(full_path, &s))
{
strcpyW(buffer, full_path);
return TRUE;
}
while (searchPath)
{
ptr = strchrW(searchPath, ';');
if (ptr)
{
memcpy(tmp, searchPath, (ptr - searchPath) * sizeof(WCHAR));
tmp[ptr - searchPath] = 0;
searchPath = ptr + 1;
}
else
{
strcpyW(tmp, searchPath);
searchPath = NULL;
}
if (do_searchW(filename, tmp, FALSE, sffip_cb, &s))
{
strcpyW(buffer, tmp);
return TRUE;
}
}
return FALSE;
}
/******************************************************************
* SymFindFileInPath (DBGHELP.@)
*
*/
BOOL WINAPI SymFindFileInPath(HANDLE hProcess, PCSTR searchPath, PCSTR full_path,
PVOID id, DWORD two, DWORD three, DWORD flags,
PSTR buffer, PFINDFILEINPATHCALLBACK cb,
PVOID user)
{
WCHAR searchPathW[MAX_PATH];
WCHAR full_pathW[MAX_PATH];
WCHAR bufferW[MAX_PATH];
struct enum_dir_treeWA edt;
BOOL ret;
/* a PFINDFILEINPATHCALLBACK and a PENUMDIRTREE_CALLBACK have actually the
* same signature & semantics, hence we can reuse the EnumDirTree W->A
* conversion helper
*/
edt.cb = cb;
edt.user = user;
if (searchPath)
MultiByteToWideChar(CP_ACP, 0, searchPath, -1, searchPathW, MAX_PATH);
MultiByteToWideChar(CP_ACP, 0, full_path, -1, full_pathW, MAX_PATH);
if ((ret = SymFindFileInPathW(hProcess, searchPath ? searchPathW : NULL, full_pathW,
id, two, three, flags,
bufferW, enum_dir_treeWA, &edt)))
WideCharToMultiByte(CP_ACP, 0, bufferW, -1, buffer, MAX_PATH, NULL, NULL);
return ret;
}
struct module_find
{
enum module_type kind;
/* pe: dw1 DWORD:timestamp
* dw2 size of image (from PE header)
* pdb: guid PDB guid (if DS PDB file)
* or dw1 PDB timestamp (if JG PDB file)
* dw2 PDB age
* elf: dw1 DWORD:CRC 32 of ELF image (Wine only)
*/
const GUID* guid;
DWORD dw1;
DWORD dw2;
WCHAR filename[MAX_PATH];
unsigned matched;
};
/* checks that buffer (as found by matching the name) matches the info
* (information is based on file type)
* returns TRUE when file is found, FALSE to continue searching
* (NB this is the opposite convention of SymFindFileInPathProc)
*/
static BOOL CALLBACK module_find_cb(PCWSTR buffer, PVOID user)
{
struct module_find* mf = user;
DWORD size, checksum, timestamp;
unsigned matched = 0;
/* the matching weights:
* +1 if a file with same name is found and is a decent file of expected type
* +1 if first parameter and second parameter match
*/
/* FIXME: should check that id/two match the file pointed
* by buffer
*/
switch (mf->kind)
{
case DMT_PE:
{
HANDLE hFile, hMap;
void* mapping;
DWORD timestamp;
timestamp = ~mf->dw1;
size = ~mf->dw2;
hFile = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
{
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
{
IMAGE_NT_HEADERS* nth = RtlImageNtHeader(mapping);
matched++;
timestamp = nth->FileHeader.TimeDateStamp;
size = nth->OptionalHeader.SizeOfImage;
UnmapViewOfFile(mapping);
}
CloseHandle(hMap);
}
CloseHandle(hFile);
if (timestamp != mf->dw1)
WARN("Found %s, but wrong timestamp\n", debugstr_w(buffer));
if (size != mf->dw2)
WARN("Found %s, but wrong size\n", debugstr_w(buffer));
if (timestamp == mf->dw1 && size == mf->dw2) matched++;
}
break;
case DMT_ELF:
if (elf_fetch_file_info(buffer, 0, &size, &checksum))
{
matched++;
if (checksum == mf->dw1) matched++;
else
WARN("Found %s, but wrong checksums: %08x %08x\n",
debugstr_w(buffer), checksum, mf->dw1);
}
else
{
WARN("Couldn't read %s\n", debugstr_w(buffer));
return FALSE;
}
break;
case DMT_MACHO:
if (macho_fetch_file_info(buffer, 0, &size, &checksum))
{
matched++;
if (checksum == mf->dw1) matched++;
else
WARN("Found %s, but wrong checksums: %08x %08x\n",
debugstr_w(buffer), checksum, mf->dw1);
}
else
{
WARN("Couldn't read %s\n", debugstr_w(buffer));
return FALSE;
}
break;
case DMT_PDB:
{
struct pdb_lookup pdb_lookup;
char fn[MAX_PATH];
WideCharToMultiByte(CP_ACP, 0, buffer, -1, fn, MAX_PATH, NULL, NULL);
pdb_lookup.filename = fn;
if (mf->guid)
{
pdb_lookup.kind = PDB_DS;
pdb_lookup.timestamp = 0;
pdb_lookup.guid = *mf->guid;
}
else
{
pdb_lookup.kind = PDB_JG;
pdb_lookup.timestamp = mf->dw1;
/* pdb_loopkup.guid = */
}
pdb_lookup.age = mf->dw2;
if (!pdb_fetch_file_info(&pdb_lookup, &matched)) return FALSE;
}
break;
case DMT_DBG:
{
HANDLE hFile, hMap;
void* mapping;
timestamp = ~mf->dw1;
hFile = CreateFileW(buffer, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE) return FALSE;
if ((hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != NULL)
{
if ((mapping = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0)) != NULL)
{
const IMAGE_SEPARATE_DEBUG_HEADER* hdr;
hdr = mapping;
if (hdr->Signature == IMAGE_SEPARATE_DEBUG_SIGNATURE)
{
matched++;
timestamp = hdr->TimeDateStamp;
}
UnmapViewOfFile(mapping);
}
CloseHandle(hMap);
}
CloseHandle(hFile);
if (timestamp == mf->dw1) matched++;
else WARN("Found %s, but wrong timestamp\n", debugstr_w(buffer));
}
break;
default:
FIXME("What the heck??\n");
return FALSE;
}
if (matched > mf->matched)
{
strcpyW(mf->filename, buffer);
mf->matched = matched;
}
/* yes, EnumDirTree/do_search and SymFindFileInPath callbacks use the opposite
* convention to stop/continue enumeration. sigh.
*/
return mf->matched == 2;
}
BOOL path_find_symbol_file(const struct process* pcs, PCSTR full_path,
const GUID* guid, DWORD dw1, DWORD dw2, PSTR buffer,
BOOL* is_unmatched)
{
struct module_find mf;
WCHAR full_pathW[MAX_PATH];
WCHAR tmp[MAX_PATH];
WCHAR* ptr;
const WCHAR* filename;
WCHAR* searchPath = pcs->search_path;
TRACE("(pcs = %p, full_path = %s, guid = %s, dw1 = 0x%08x, dw2 = 0x%08x, buffer = %p)\n",
pcs, debugstr_a(full_path), debugstr_guid(guid), dw1, dw2, buffer);
mf.guid = guid;
mf.dw1 = dw1;
mf.dw2 = dw2;
mf.matched = 0;
MultiByteToWideChar(CP_ACP, 0, full_path, -1, full_pathW, MAX_PATH);
filename = file_nameW(full_pathW);
mf.kind = module_get_type_by_name(filename);
*is_unmatched = FALSE;
/* first check full path to file */
if (module_find_cb(full_pathW, &mf))
{
WideCharToMultiByte(CP_ACP, 0, full_pathW, -1, buffer, MAX_PATH, NULL, NULL);
return TRUE;
}
while (searchPath)
{
ptr = strchrW(searchPath, ';');
if (ptr)
{
memcpy(tmp, searchPath, (ptr - searchPath) * sizeof(WCHAR));
tmp[ptr - searchPath] = '\0';
searchPath = ptr + 1;
}
else
{
strcpyW(tmp, searchPath);
searchPath = NULL;
}
if (do_searchW(filename, tmp, FALSE, module_find_cb, &mf))
{
/* return first fully matched file */
WideCharToMultiByte(CP_ACP, 0, tmp, -1, buffer, MAX_PATH, NULL, NULL);
return TRUE;
}
}
/* if no fully matching file is found, return the best matching file if any */
if ((dbghelp_options & SYMOPT_LOAD_ANYTHING) && mf.matched)
{
WideCharToMultiByte(CP_ACP, 0, mf.filename, -1, buffer, MAX_PATH, NULL, NULL);
*is_unmatched = TRUE;
return TRUE;
}
return FALSE;
}
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