[reactos] 93/179: [WINESYNC] dbghelp: Move elf_check_alternate implementation to module.c.
https://git.reactos.org/?p=reactos.git;a=commitdiff;h=ebdb2b35d9ee6d285581a1...
commit ebdb2b35d9ee6d285581a1a05a4dd94eb52fe78e Author: winesync ros-dev@reactos.org AuthorDate: Fri Sep 11 17:05:18 2020 +0200 Commit: Jérôme Gardou jerome.gardou@reactos.org CommitDate: Wed Sep 16 10:35:46 2020 +0200
[WINESYNC] dbghelp: Move elf_check_alternate implementation to module.c.
Signed-off-by: Jacek Caban jacek@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
wine commit id 4694801e4f58f0e856327d251ac98cfb573fd83b by Jacek Caban jacek@codeweavers.com --- dll/win32/dbghelp/CMakeLists.txt | 1 + dll/win32/dbghelp/compat.c | 110 ++++++++++++++++ dll/win32/dbghelp/compat.h | 8 ++ dll/win32/dbghelp/dbghelp.c | 3 - dll/win32/dbghelp/elf_module.c | 257 +++----------------------------------- dll/win32/dbghelp/image_private.h | 11 ++ dll/win32/dbghelp/module.c | 249 +++++++++++++++++++++++++++++++++++- dll/win32/dbghelp/path.c | 2 - sdk/tools/winesync/dbghelp.cfg | 2 +- 9 files changed, 395 insertions(+), 248 deletions(-)
diff --git a/dll/win32/dbghelp/CMakeLists.txt b/dll/win32/dbghelp/CMakeLists.txt index c4e3929e7b9..59e160b21ee 100644 --- a/dll/win32/dbghelp/CMakeLists.txt +++ b/dll/win32/dbghelp/CMakeLists.txt @@ -15,6 +15,7 @@ if(NOT CMAKE_CROSSCOMPILING) compat.c dbghelp.c dwarf.c + elf_module.c module.c pe_module.c source.c diff --git a/dll/win32/dbghelp/compat.c b/dll/win32/dbghelp/compat.c index dfd9ec13d29..8ef4d551e65 100644 --- a/dll/win32/dbghelp/compat.c +++ b/dll/win32/dbghelp/compat.c @@ -166,6 +166,31 @@ HANDLE __CreateFileW( return res; }
+BOOL __ReadFile(HANDLE file, PVOID buffer, DWORD len, PDWORD outlen, PVOID overlap) +{ + size_t read; + + assert(overlap == NULL); + + read = fread(buffer, 1, len, file); + + if (ferror(file) != 0) + return FALSE; + + *outlen = (DWORD)read; + return TRUE; +} + +DWORD __SetFilePointer(HANDLE file,LONG low, PLONG high, DWORD move) +{ + assert(move == FILE_BEGIN); + assert(high == NULL); + + if (fseek(file, low, SEEK_SET)) + return INVALID_SET_FILE_POINTER; + return low; +} + void* __MapViewOfFile(HANDLE file,DWORD d1,DWORD d2,DWORD d3,SIZE_T s) { FILE *f = (FILE*)file; @@ -400,3 +425,88 @@ BOOL __IsWow64Process(HANDLE Process, BOOL* is_wow64) *is_wow64 = FALSE; return TRUE; } + +/* from sdk/lib/rtl/crc2.c */ +/* This work is based off of rtl.c in Wine. + * Please give credit where credit is due: + * + * Copyright 2003 Thomas Mertes + * Crc32 code Copyright 1986 Gary S. Brown (Public domain) + */ + +/* CRC polynomial 0xedb88320 */ +static const ULONG CrcTable[256] = +{ + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, + 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, + 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, + 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, + 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, + 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, + 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, + 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, + 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, + 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, + 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, + 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, + 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, + 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, + 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, + 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, + 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, + 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, + 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, + 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, + 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, + 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, + 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, + 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, + 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, + 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, + 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, + 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, + 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, + 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, + 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, + 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, + 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, + 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, + 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d +}; + +/********************************************************************* + * RtlComputeCrc32 [NTDLL.@] + * + * Calculate the CRC32 checksum of a block of bytes + * + * PARAMS + * Initial [I] Initial CRC value + * Data [I] Data block + * Length [I] Length of the byte block + * + * RETURNS + * The cumulative CRC32 of Initial and Length bytes of the Data block. + * + * @implemented + */ +ULONG +__RtlComputeCrc32(ULONG Initial, PUCHAR Data, ULONG Length) +{ + ULONG CrcValue = ~Initial; + + while (Length > 0) + { + CrcValue = CrcTable[(CrcValue ^ *Data) & 0xff] ^ (CrcValue >> 8); + Data++; + Length--; + } + return ~CrcValue; +} diff --git a/dll/win32/dbghelp/compat.h b/dll/win32/dbghelp/compat.h index b249fe1ef79..1485a78e024 100644 --- a/dll/win32/dbghelp/compat.h +++ b/dll/win32/dbghelp/compat.h @@ -470,6 +470,7 @@ typedef struct _EXCEPTION_REGISTRATION_RECORD
// winbase.h #define INVALID_HANDLE_VALUE (HANDLE)(-1) +#define INVALID_SET_FILE_POINTER ((DWORD)-1) #define HeapAlloc __HeapAlloc #define HeapReAlloc __HeapReAlloc #define HeapFree(x,y,z) free(z) @@ -479,6 +480,8 @@ typedef struct _EXCEPTION_REGISTRATION_RECORD #define CloseHandle __CloseHandle #define CreateFileA(a,b,c,d,e,f,g) fopen(a, "rb") #define CreateFileW __CreateFileW +#define ReadFile(a,b,c,d,e) __ReadFile +#define SetFilePointer __SetFilePointer #define CreateFileMappingW(a,b,c,d,e,f) a #define MapViewOfFile __MapViewOfFile #define UnmapViewOfFile __UnmapViewOfFile @@ -496,12 +499,15 @@ typedef struct _EXCEPTION_REGISTRATION_RECORD #define ReadProcessMemory(a,b,c,d,e) 0 #define GetCurrentProcess() (HANDLE)1 #define IsWow64Process __IsWow64Process +#define FILE_BEGIN 0
void* __HeapAlloc(int heap, int flags, size_t size); void* __HeapReAlloc(int heap, DWORD d2, void *slab, SIZE_T newsize); WCHAR* __lstrcpynW(WCHAR* lpString1, const WCHAR* lpString2, int iMaxLength); BOOL __CloseHandle(HANDLE handle); HANDLE __CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile); +BOOL __ReadFile(HANDLE,PVOID,DWORD,PDWORD,/*LPOVERLAPPED*/ PVOID); +DWORD __SetFilePointer(HANDLE,LONG,PLONG,DWORD); void* __MapViewOfFile(HANDLE file,DWORD d1,DWORD d2,DWORD d3,SIZE_T s); BOOL __UnmapViewOfFile(const void*); LPSTR __lstrcpynA(LPSTR,LPCSTR,int); @@ -542,6 +548,7 @@ typedef LONG KPRIORITY; #define RtlImageRvaToVa __RtlImageRvaToVa #define RtlImageRvaToSection __RtlImageRvaToSection #define RtlImageDirectoryEntryToData __RtlImageDirectoryEntryToData +#define RtlComputeCrc32 __RtlComputeCrc32
#ifdef _MSC_VER #define RtlUlongByteSwap(_x) _byteswap_ulong((_x)) @@ -552,6 +559,7 @@ typedef LONG KPRIORITY; PIMAGE_NT_HEADERS __RtlImageNtHeader(void *data); PVOID __RtlImageRvaToVa (const IMAGE_NT_HEADERS* NtHeader, PVOID BaseAddress, ULONG Rva, PIMAGE_SECTION_HEADER *SectionHeader); PVOID __RtlImageDirectoryEntryToData(PVOID BaseAddress, BOOLEAN MappedAsImage, USHORT Directory, PULONG Size); +ULONG __RtlComputeCrc32(ULONG Initial, PUCHAR Data, ULONG Length);
typedef struct _CLIENT_ID { diff --git a/dll/win32/dbghelp/dbghelp.c b/dll/win32/dbghelp/dbghelp.c index bb69d671961..b59ee6a269c 100644 --- a/dll/win32/dbghelp/dbghelp.c +++ b/dll/win32/dbghelp/dbghelp.c @@ -739,7 +739,6 @@ void WINAPI WinDbgExtensionDllInit(PWINDBG_EXTENSION_APIS lpExtensionApis, { }
-#ifndef DBGHELP_STATIC_LIB DWORD calc_crc32(HANDLE handle) { BYTE buffer[8192]; @@ -751,5 +750,3 @@ DWORD calc_crc32(HANDLE handle) crc = RtlComputeCrc32(crc, buffer, len); return crc; } -#endif - diff --git a/dll/win32/dbghelp/elf_module.c b/dll/win32/dbghelp/elf_module.c index 75f046105c7..7a6d9bed125 100644 --- a/dll/win32/dbghelp/elf_module.c +++ b/dll/win32/dbghelp/elf_module.c @@ -1,3 +1,12 @@ +#ifdef __REACTOS__ +#ifdef DBGHELP_STATIC_LIB +#undef __ELF__ +#include "compat.h" +#else +#endif +#include "dbghelp_private.h" +#include "image_private.h" +#else /* * File elf.c - processing of ELF files * @@ -41,6 +50,7 @@ #include "wine/library.h" #include "wine/debug.h" #include "wine/heap.h" +#endif /* __REACTOS__ */
#ifdef __ELF__
@@ -542,7 +552,7 @@ static BOOL elf_map_file(struct elf_map_file_data* emfd, struct image_file_map* return TRUE; }
-static BOOL elf_map_handle(HANDLE handle, struct image_file_map* fmap) +BOOL elf_map_handle(HANDLE handle, struct image_file_map* fmap) { struct elf_map_file_data emfd; emfd.kind = from_handle; @@ -958,244 +968,6 @@ static int elf_new_public_symbols(struct module* module, const struct hash_table return TRUE; }
-static BOOL elf_check_debug_link(const WCHAR* file, struct image_file_map* fmap, DWORD link_crc) -{ - HANDLE handle; - WCHAR *path; - BOOL ret; - - path = get_dos_file_name(file); - handle = CreateFileW(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); - heap_free(path); - if (handle == INVALID_HANDLE_VALUE) return FALSE; - - if (link_crc) - { - DWORD crc = calc_crc32(handle); - if (crc != link_crc) - { - WARN("Bad CRC for file %s (got %08x while expecting %08x)\n", debugstr_w(file), crc, link_crc); - CloseHandle(handle); - return FALSE; - } - } - - ret = elf_map_handle(handle, fmap); - CloseHandle(handle); - return ret; -} - -/****************************************************************** - * elf_locate_debug_link - * - * Locate a filename from a .gnu_debuglink section, using the same - * strategy as gdb: - * "If the full name of the directory containing the executable is - * execdir, and the executable has a debug link that specifies the - * name debugfile, then GDB will automatically search for the - * debugging information file in three places: - * - the directory containing the executable file (that is, it - * will look for a file named `execdir/debugfile', - * - a subdirectory of that directory named `.debug' (that is, the - * file `execdir/.debug/debugfile', and - * - a subdirectory of the global debug file directory that includes - * the executable's full path, and the name from the link (that is, - * the file `globaldebugdir/execdir/debugfile', where globaldebugdir - * is the global debug file directory, and execdir has been turned - * into a relative path)." (from GDB manual) - */ -static BOOL elf_locate_debug_link(const struct module* module, struct image_file_map* fmap, 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','/'}; - const size_t globalDebugDirLen = ARRAY_SIZE(globalDebugDirW); - size_t filename_len, path_len; - WCHAR* p = NULL; - WCHAR* slash; - WCHAR* slash2; - struct image_file_map* fmap_link = NULL; - - fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link)); - if (!fmap_link) return FALSE; - - filename_len = MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, NULL, 0); - path_len = strlenW(module->module.LoadedImageName); - p = HeapAlloc(GetProcessHeap(), 0, - (globalDebugDirLen + path_len + 6 + 1 + filename_len + 1) * sizeof(WCHAR)); - if (!p) goto found; - - /* we prebuild the string with "execdir" */ - strcpyW(p, module->module.LoadedImageName); - slash = p; - if ((slash2 = strrchrW(slash, '/'))) slash = slash2 + 1; - if ((slash2 = strrchrW(slash, '\'))) slash = slash2 + 1; - - /* testing execdir/filename */ - MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash, filename_len); - if (elf_check_debug_link(p, fmap_link, crc)) goto found; - - /* testing execdir/.debug/filename */ - memcpy(slash, dotDebugW, sizeof(dotDebugW)); - MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash + ARRAY_SIZE(dotDebugW), filename_len); - if (elf_check_debug_link(p, fmap_link, crc)) goto found; - - /* testing globaldebugdir/execdir/filename */ - memmove(p + globalDebugDirLen, p, (slash - p) * sizeof(WCHAR)); - memcpy(p, globalDebugDirW, globalDebugDirLen * sizeof(WCHAR)); - slash += globalDebugDirLen; - MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash, filename_len); - if (elf_check_debug_link(p, fmap_link, crc)) goto found; - - /* finally testing filename */ - if (elf_check_debug_link(slash, fmap_link, crc)) goto found; - - - WARN("Couldn't locate or map %s\n", filename); - HeapFree(GetProcessHeap(), 0, p); - HeapFree(GetProcessHeap(), 0, fmap_link); - return FALSE; - -found: - TRACE("Located debug information file %s at %s\n", filename, debugstr_w(p)); - HeapFree(GetProcessHeap(), 0, p); - fmap->alternate = fmap_link; - return TRUE; -} - -/****************************************************************** - * elf_locate_build_id_target - * - * Try to find the .so file containing the debug info out of the build-id note information - */ -static BOOL elf_locate_build_id_target(struct image_file_map* fmap, const BYTE* id, unsigned idlen) -{ - static const WCHAR globalDebugDirW[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'}; - static const WCHAR buildidW[] = {'.','b','u','i','l','d','-','i','d','/'}; - static const WCHAR dotDebug0W[] = {'.','d','e','b','u','g',0}; - struct image_file_map* fmap_link = NULL; - WCHAR* p; - WCHAR* z; - const BYTE* idend = id + idlen; - - fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link)); - if (!fmap_link) return FALSE; - - p = HeapAlloc(GetProcessHeap(), 0, - sizeof(globalDebugDirW) + sizeof(buildidW) + - (idlen * 2 + 1) * sizeof(WCHAR) + sizeof(dotDebug0W)); - z = p; - memcpy(z, globalDebugDirW, sizeof(globalDebugDirW)); - z += ARRAY_SIZE(globalDebugDirW); - memcpy(z, buildidW, sizeof(buildidW)); - z += ARRAY_SIZE(buildidW); - - if (id < idend) - { - *z++ = "0123456789abcdef"[*id >> 4 ]; - *z++ = "0123456789abcdef"[*id & 0x0F]; - id++; - } - if (id < idend) - *z++ = '/'; - while (id < idend) - { - *z++ = "0123456789abcdef"[*id >> 4 ]; - *z++ = "0123456789abcdef"[*id & 0x0F]; - id++; - } - memcpy(z, dotDebug0W, sizeof(dotDebug0W)); - TRACE("checking %s\n", wine_dbgstr_w(p)); - - if (elf_check_debug_link(p, fmap_link, 0)) - { - struct image_section_map buildid_sect; - if (image_find_section(fmap_link, ".note.gnu.build-id", &buildid_sect)) - { - const uint32_t* note; - - note = (const uint32_t*)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] == NT_GNU_BUILD_ID) - { - if (note[1] == idlen && - !memcmp(note + 3 + ((note[0] + 3) >> 2), idend - idlen, idlen)) - { - TRACE("Located debug information file at %s\n", debugstr_w(p)); - HeapFree(GetProcessHeap(), 0, p); - fmap->alternate = fmap_link; - return TRUE; - } - WARN("mismatch in buildid information for %s\n", wine_dbgstr_w(p)); - } - } - image_unmap_section(&buildid_sect); - } - image_unmap_file(fmap_link); - } - - TRACE("not found\n"); - HeapFree(GetProcessHeap(), 0, p); - HeapFree(GetProcessHeap(), 0, fmap_link); - return FALSE; -} - -/****************************************************************** - * elf_check_alternate - * - * Load alternate files for a given ELF file, looking at either .note.gnu_build-id - * or .gnu_debuglink sections. - */ -static BOOL elf_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; - - /* 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_t* note; - - found = TRUE; - note = (const uint32_t*)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] == NT_GNU_BUILD_ID) - { - ret = elf_locate_build_id_target(fmap, (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)) - { - const char* dbg_link; - - found = TRUE; - dbg_link = (const char*)image_map_section(&debuglink_sect); - if (dbg_link != IMAGE_NO_MAP) - { - /* The content of a debug link section is: - * 1/ a NULL terminated string, containing the file name for the - * debug info - * 2/ padding on 4 byte boundary - * 3/ CRC of the linked ELF file - */ - DWORD crc = *(const DWORD*)(dbg_link + ((DWORD_PTR)(strlen(dbg_link) + 4) & ~3)); - ret = elf_locate_debug_link(module, fmap, dbg_link, crc); - if (!ret) - WARN("Couldn't load linked debug file for %s\n", - debugstr_w(module->module.ModuleName)); - } - image_unmap_section(&debuglink_sect); - } - return found ? ret : TRUE; -} - /****************************************************************** * elf_load_debug_info_from_map * @@ -1236,7 +1008,7 @@ static BOOL elf_load_debug_info_from_map(struct module* module, struct image_section_map stab_sect, stabstr_sect;
/* check if we need an alternate file (from debuglink or build-id) */ - ret = elf_check_alternate(fmap, module); + ret = image_check_alternate(fmap, module);
if (image_find_section(fmap, ".stab", &stab_sect) && image_find_section(fmap, ".stabstr", &stabstr_sect)) @@ -2030,6 +1802,11 @@ BOOL elf_synchronize_module_list(struct process* pcs)
#else /* !__ELF__ */
+BOOL elf_map_handle(HANDLE handle, struct image_file_map* fmap) +{ + return FALSE; +} + BOOL elf_synchronize_module_list(struct process* pcs) { return FALSE; diff --git a/dll/win32/dbghelp/image_private.h b/dll/win32/dbghelp/image_private.h index 8a8cd9a4454..579d7af37cf 100644 --- a/dll/win32/dbghelp/image_private.h +++ b/dll/win32/dbghelp/image_private.h @@ -54,6 +54,13 @@ #ifndef SHT_NULL #define SHT_NULL 0 #endif +#ifndef NT_GNU_BUILD_ID +#define NT_GNU_BUILD_ID 3 +#endif +#elif defined(__REACTOS__) +#ifndef NT_GNU_BUILD_ID +#define NT_GNU_BUILD_ID 3 +#endif #endif
/* structure holding information while handling an ELF image @@ -132,6 +139,10 @@ struct image_section_map long sidx; };
+BOOL image_check_alternate(struct image_file_map* fmap, const struct module* module) DECLSPEC_HIDDEN; + +BOOL elf_map_handle(HANDLE handle, struct image_file_map* fmap) DECLSPEC_HIDDEN; + struct image_file_map_ops { const char* (*map_section)(struct image_section_map* ism); diff --git a/dll/win32/dbghelp/module.c b/dll/win32/dbghelp/module.c index 5243b53a829..16d6670a737 100644 --- a/dll/win32/dbghelp/module.c +++ b/dll/win32/dbghelp/module.c @@ -26,14 +26,13 @@ #include <assert.h>
#include "dbghelp_private.h" +#include "image_private.h" #ifndef DBGHELP_STATIC_LIB #include "psapi.h" #include "winternl.h" #include "wine/debug.h" -#ifndef __REACTOS__ #include "wine/heap.h" #endif -#endif
WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
@@ -560,6 +559,252 @@ static BOOL refresh_module_list(struct process* pcs) } #endif
+static BOOL image_check_debug_link(const WCHAR* file, struct image_file_map* fmap, DWORD link_crc) +{ + HANDLE handle; +#ifndef DBGHELP_STATIC_LIB + WCHAR *path; +#endif + BOOL ret; + +#ifndef DBGHELP_STATIC_LIB + path = get_dos_file_name(file); + handle = CreateFileW(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); + heap_free(path); +#else + handle = CreateFileW(file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); +#endif + if (handle == INVALID_HANDLE_VALUE) return FALSE; + + if (link_crc) + { + DWORD crc = calc_crc32(handle); + if (crc != link_crc) + { + WARN("Bad CRC for file %s (got %08x while expecting %08x)\n", debugstr_w(file), crc, link_crc); + CloseHandle(handle); + return FALSE; + } + } + + ret = elf_map_handle(handle, fmap); + CloseHandle(handle); + return ret; +} + +/****************************************************************** + * image_locate_debug_link + * + * Locate a filename from a .gnu_debuglink section, using the same + * strategy as gdb: + * "If the full name of the directory containing the executable is + * execdir, and the executable has a debug link that specifies the + * name debugfile, then GDB will automatically search for the + * debugging information file in three places: + * - the directory containing the executable file (that is, it + * will look for a file named `execdir/debugfile', + * - a subdirectory of that directory named `.debug' (that is, the + * file `execdir/.debug/debugfile', and + * - a subdirectory of the global debug file directory that includes + * the executable's full path, and the name from the link (that is, + * the file `globaldebugdir/execdir/debugfile', where globaldebugdir + * 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 const WCHAR globalDebugDirW[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'}; + static const WCHAR dotDebugW[] = {'.','d','e','b','u','g','/'}; + const size_t globalDebugDirLen = ARRAY_SIZE(globalDebugDirW); + size_t filename_len, path_len; + WCHAR* p = NULL; + WCHAR* slash; + WCHAR* slash2; + struct image_file_map* fmap_link = NULL; + + fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link)); + if (!fmap_link) return FALSE; + + filename_len = MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, NULL, 0); + path_len = strlenW(module->module.LoadedImageName); + p = HeapAlloc(GetProcessHeap(), 0, + (globalDebugDirLen + path_len + 6 + 1 + filename_len + 1) * sizeof(WCHAR)); + if (!p) goto found; + + /* we prebuild the string with "execdir" */ + strcpyW(p, module->module.LoadedImageName); + slash = p; + if ((slash2 = strrchrW(slash, '/'))) slash = slash2 + 1; + if ((slash2 = strrchrW(slash, '\'))) slash = slash2 + 1; + + /* testing execdir/filename */ + MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash, filename_len); + if (image_check_debug_link(p, fmap_link, crc)) goto found; + + /* testing execdir/.debug/filename */ + memcpy(slash, dotDebugW, sizeof(dotDebugW)); + MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash + ARRAY_SIZE(dotDebugW), filename_len); + if (image_check_debug_link(p, fmap_link, crc)) goto found; + +#ifndef __REACTOS__ + /* testing globaldebugdir/execdir/filename */ + memmove(p + globalDebugDirLen, p, (slash - p) * sizeof(WCHAR)); + memcpy(p, globalDebugDirW, globalDebugDirLen * sizeof(WCHAR)); + slash += globalDebugDirLen; + MultiByteToWideChar(CP_UNIXCP, 0, filename, -1, slash, filename_len); + if (image_check_debug_link(p, fmap_link, crc)) goto found; +#endif + + /* finally testing filename */ + if (image_check_debug_link(slash, fmap_link, crc)) goto found; + + + WARN("Couldn't locate or map %s\n", filename); + HeapFree(GetProcessHeap(), 0, p); + HeapFree(GetProcessHeap(), 0, fmap_link); + return FALSE; + +found: + TRACE("Located debug information file %s at %s\n", filename, debugstr_w(p)); + HeapFree(GetProcessHeap(), 0, p); + fmap->alternate = fmap_link; + return TRUE; +} + +/****************************************************************** + * image_locate_build_id_target + * + * 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 const WCHAR globalDebugDirW[] = {'/','u','s','r','/','l','i','b','/','d','e','b','u','g','/'}; + static const WCHAR buildidW[] = {'.','b','u','i','l','d','-','i','d','/'}; + static const WCHAR dotDebug0W[] = {'.','d','e','b','u','g',0}; + struct image_file_map* fmap_link = NULL; + WCHAR* p; + WCHAR* z; + const BYTE* idend = id + idlen; + + fmap_link = HeapAlloc(GetProcessHeap(), 0, sizeof(*fmap_link)); + if (!fmap_link) return FALSE; + + p = HeapAlloc(GetProcessHeap(), 0, + sizeof(globalDebugDirW) + sizeof(buildidW) + + (idlen * 2 + 1) * sizeof(WCHAR) + sizeof(dotDebug0W)); + z = p; + memcpy(z, globalDebugDirW, sizeof(globalDebugDirW)); + z += ARRAY_SIZE(globalDebugDirW); + memcpy(z, buildidW, sizeof(buildidW)); + z += ARRAY_SIZE(buildidW); + + if (id < idend) + { + *z++ = "0123456789abcdef"[*id >> 4 ]; + *z++ = "0123456789abcdef"[*id & 0x0F]; + id++; + } + if (id < idend) + *z++ = '/'; + while (id < idend) + { + *z++ = "0123456789abcdef"[*id >> 4 ]; + *z++ = "0123456789abcdef"[*id & 0x0F]; + id++; + } + memcpy(z, dotDebug0W, sizeof(dotDebug0W)); + TRACE("checking %s\n", wine_dbgstr_w(p)); + + if (image_check_debug_link(p, fmap_link, 0)) + { + struct image_section_map buildid_sect; + if (image_find_section(fmap_link, ".note.gnu.build-id", &buildid_sect)) + { + const UINT32* note; + + 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] == NT_GNU_BUILD_ID) + { + if (note[1] == idlen && + !memcmp(note + 3 + ((note[0] + 3) >> 2), idend - idlen, idlen)) + { + TRACE("Located debug information file at %s\n", debugstr_w(p)); + HeapFree(GetProcessHeap(), 0, p); + fmap->alternate = fmap_link; + return TRUE; + } + WARN("mismatch in buildid information for %s\n", wine_dbgstr_w(p)); + } + } + image_unmap_section(&buildid_sect); + } + image_unmap_file(fmap_link); + } + + TRACE("not found\n"); + HeapFree(GetProcessHeap(), 0, p); + HeapFree(GetProcessHeap(), 0, fmap_link); + return FALSE; +} + +/****************************************************************** + * image_check_alternate + * + * Load alternate files for a given image file, looking at either .note.gnu_build-id + * or .gnu_debuglink sections. + */ +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; + + /* 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] == NT_GNU_BUILD_ID) + { + ret = image_locate_build_id_target(fmap, (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)) + { + const char* dbg_link; + + found = TRUE; + dbg_link = (const char*)image_map_section(&debuglink_sect); + if (dbg_link != IMAGE_NO_MAP) + { + /* The content of a debug link section is: + * 1/ a NULL terminated string, containing the file name for the + * debug info + * 2/ padding on 4 byte boundary + * 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->module.ModuleName)); + } + image_unmap_section(&debuglink_sect); + } + return found ? ret : TRUE; +} + /*********************************************************************** * SymLoadModule (DBGHELP.@) */ diff --git a/dll/win32/dbghelp/path.c b/dll/win32/dbghelp/path.c index 21ff3ac5dfc..feb951ad55d 100644 --- a/dll/win32/dbghelp/path.c +++ b/dll/win32/dbghelp/path.c @@ -698,7 +698,6 @@ BOOL path_find_symbol_file(const struct process* pcs, const struct module* modul return FALSE; }
-#ifndef __REACTOS__ WCHAR *get_dos_file_name(const WCHAR *filename) { WCHAR *dos_path; @@ -721,4 +720,3 @@ WCHAR *get_dos_file_name(const WCHAR *filename) } return dos_path; } -#endif diff --git a/sdk/tools/winesync/dbghelp.cfg b/sdk/tools/winesync/dbghelp.cfg index edd9c2dc5d4..50838ce5e31 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: d38682397997c56359f6d161467a56ffe5bfa9fa + wine: 4694801e4f58f0e856327d251ac98cfb573fd83b
-
winesync