/* * File macho_module.c - processing of Mach-O files * Originally based on elf_module.c * * Copyright (C) 1996, Eric Youngdale. * 1999-2007 Eric Pouech * 2009 Ken Thomases, CodeWeavers Inc. * * 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 "wine/port.h" #ifdef HAVE_MACH_O_LOADER_H #include #define LoadResource mac_LoadResource #define GetCurrentThread mac_GetCurrentThread #include #undef LoadResource #undef GetCurrentThread #endif #include #include #include #include #include "ntstatus.h" #define WIN32_NO_STATUS #include "dbghelp_private.h" #include "winternl.h" #include "wine/debug.h" #include "wine/heap.h" #include "image_private.h" #ifdef HAVE_MACH_O_LOADER_H struct dyld_image_info32 { UINT32 imageLoadAddress; /* const struct mach_header* */ UINT32 imageFilePath; /* const char* */ UINT32 imageFileModDate; /* uintptr_t */ }; struct dyld_all_image_infos32 { UINT32 version; UINT32 infoArrayCount; UINT32 infoArray; /* const struct dyld_image_info* */ }; struct dyld_image_info64 { UINT64 imageLoadAddress; /* const struct mach_header* */ UINT64 imageFilePath; /* const char* */ UINT64 imageFileModDate; /* uintptr_t */ }; struct dyld_all_image_infos64 { UINT32 version; UINT32 infoArrayCount; UINT64 infoArray; /* const struct dyld_image_info* */ }; union wine_image_info { struct dyld_image_info32 info32; struct dyld_image_info64 info64; }; union wine_all_image_infos { struct dyld_all_image_infos32 infos32; struct dyld_all_image_infos64 infos64; }; struct macho_header { UINT32 magic; /* mach magic number identifier */ UINT32 cputype; /* cpu specifier */ UINT32 cpusubtype; /* machine specifier */ UINT32 filetype; /* type of file */ UINT32 ncmds; /* number of load commands */ UINT32 sizeofcmds; /* the size of all the load commands */ UINT32 flags; /* flags */ UINT32 reserved; /* reserved */ }; struct macho_segment_command { UINT32 cmd; /* LC_SEGMENT_64 */ UINT32 cmdsize; /* includes sizeof section_64 structs */ char segname[16]; /* segment name */ UINT64 vmaddr; /* memory address of this segment */ UINT64 vmsize; /* memory size of this segment */ UINT64 fileoff; /* file offset of this segment */ UINT64 filesize; /* amount to map from the file */ UINT32 maxprot; /* maximum VM protection */ UINT32 initprot; /* initial VM protection */ UINT32 nsects; /* number of sections in segment */ UINT32 flags; /* flags */ }; struct macho_segment_command32 { UINT32 cmd; /* LC_SEGMENT */ UINT32 cmdsize; /* includes sizeof section structs */ char segname[16]; /* segment name */ UINT32 vmaddr; /* memory address of this segment */ UINT32 vmsize; /* memory size of this segment */ UINT32 fileoff; /* file offset of this segment */ UINT32 filesize; /* amount to map from the file */ UINT32 maxprot; /* maximum VM protection */ UINT32 initprot; /* initial VM protection */ UINT32 nsects; /* number of sections in segment */ UINT32 flags; /* flags */ }; struct macho_symtab_command { UINT32 cmd; /* LC_SYMTAB */ UINT32 cmdsize; /* sizeof(struct symtab_command) */ UINT32 symoff; /* symbol table offset */ UINT32 nsyms; /* number of symbol table entries */ UINT32 stroff; /* string table offset */ UINT32 strsize; /* string table size in bytes */ }; #ifdef WORDS_BIGENDIAN #define swap_ulong_be_to_host(n) (n) #else #define swap_ulong_be_to_host(n) (RtlUlongByteSwap(n)) #endif WINE_DEFAULT_DEBUG_CHANNEL(dbghelp_macho); /* Bitmask for Mach-O image header flags indicating that the image is in dyld's shared cached. That implies that its segments are mapped non-contiguously. This value isn't defined anywhere in headers. It's used in dyld and in debuggers which support OS X as a magic number. The flag also isn't set in the on-disk image file. It's only set in memory by dyld. */ #define MACHO_DYLD_IN_SHARED_CACHE 0x80000000 #define MACHO_FAT_MAGIC 0xcafebabe #define MACHO_MH_MAGIC_32 0xfeedface #define MACHO_MH_MAGIC_64 0xfeedfacf #define MACHO_CPU_TYPE_X86 0x00000007 #define MACHO_CPU_TYPE_X86_64 0x01000007 #define MACHO_MH_EXECUTE 0x2 #define MACHO_MH_DYLIB 0x6 #define MACHO_MH_DYLINKER 0x7 #define MACHO_MH_BUNDLE 0x8 #define MACHO_MH_DSYM 0xa #define MACHO_LC_SEGMENT 0x01 #define MACHO_LC_SYMTAB 0x02 #define MACHO_LC_SEGMENT_64 0x19 #define MACHO_LC_UUID 0x1b #define MACHO_SECTION_TYPE 0x000000ff #define MACHO_S_ATTR_PURE_INSTRUCTIONS 0x80000000 #define MACHO_S_ATTR_SOME_INSTRUCTIONS 0x00000400 #define UUID_STRING_LEN 37 /* 16 bytes at 2 hex digits apiece, 4 dashes, and the null terminator */ struct macho_module_info { struct image_file_map file_map; ULONG_PTR load_addr; unsigned short in_use : 1, is_loader : 1; }; struct section_info { BOOL split_segs; unsigned int section_index; }; #define MACHO_INFO_MODULE 0x0001 #define MACHO_INFO_NAME 0x0002 struct macho_info { unsigned flags; /* IN one (or several) of the MACHO_INFO constants */ struct module* module; /* OUT loaded module (if MACHO_INFO_MODULE is set) */ const WCHAR* module_name; /* OUT found module name (if MACHO_INFO_NAME is set) */ }; static void macho_unmap_file(struct image_file_map* fmap); static char* format_uuid(const UINT8 uuid[16], char out[UUID_STRING_LEN]) { sprintf(out, "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X", uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7], uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]); return out; } /****************************************************************** * macho_calc_range * * For a range (offset & length) of a single architecture within * a Mach-O file, calculate the page-aligned range of the whole file * that encompasses it. For a fat binary, the architecture will * itself be offset within the file, so take that into account. */ static void macho_calc_range(const struct macho_file_map* fmap, ULONG_PTR offset, ULONG_PTR len, ULONG_PTR* out_aligned_offset, ULONG_PTR* out_aligned_end, ULONG_PTR* out_misalign) { ULONG_PTR pagemask; ULONG_PTR file_offset, misalign; pagemask = sysinfo.dwAllocationGranularity - 1; file_offset = fmap->arch_offset + offset; misalign = file_offset & pagemask; *out_aligned_offset = file_offset - misalign; *out_aligned_end = file_offset + len; if (out_misalign) *out_misalign = misalign; } /****************************************************************** * macho_map_range * * Maps a range (offset, length in bytes) from a Mach-O file into memory */ static const char* macho_map_range(const struct macho_file_map* fmap, ULONG_PTR offset, ULONG_PTR len, const char** base) { ULONG_PTR misalign, aligned_offset, aligned_map_end; const void* aligned_ptr; HANDLE mapping; TRACE("(%p/%p, 0x%08lx, 0x%08lx)\n", fmap, fmap->handle, offset, len); macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end, &misalign); if (!(mapping = CreateFileMappingW(fmap->handle, NULL, PAGE_READONLY, 0, 0, NULL))) { ERR("map creation %p failed %u size %lu\n", fmap->handle, GetLastError(), aligned_map_end); return IMAGE_NO_MAP; } aligned_ptr = MapViewOfFile(mapping, FILE_MAP_READ, 0, aligned_offset, aligned_map_end - aligned_offset); CloseHandle(mapping); if (!aligned_ptr) { ERR("map failed %u\n", GetLastError()); return IMAGE_NO_MAP; } TRACE("Mapped (0x%08lx - 0x%08lx) to %p\n", aligned_offset, aligned_map_end, aligned_ptr); if (base) *base = aligned_ptr; return (const char*)aligned_ptr + misalign; } /****************************************************************** * macho_unmap_range * * Unmaps a range (offset, length in bytes) of a Mach-O file from memory */ static void macho_unmap_range(const char** base, const void** mapped, const struct macho_file_map* fmap, ULONG_PTR offset, ULONG_PTR len) { TRACE("(%p, %p, %p/%p, 0x%08lx, 0x%08lx)\n", base, mapped, fmap, fmap->handle, offset, len); if ((mapped && *mapped != IMAGE_NO_MAP) || (base && *base != IMAGE_NO_MAP)) { ULONG_PTR misalign, aligned_offset, aligned_map_end; void* aligned_ptr; macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end, &misalign); if (mapped) aligned_ptr = (char*)*mapped - misalign; else aligned_ptr = (void*)*base; if (!UnmapViewOfFile(aligned_ptr)) WARN("Couldn't unmap the range\n"); if (mapped) *mapped = IMAGE_NO_MAP; if (base) *base = IMAGE_NO_MAP; } } /****************************************************************** * macho_map_ranges * * Maps two ranges (offset, length in bytes) from a Mach-O file * into memory. If the two ranges overlap, use one mmap so that * the munmap doesn't fragment the mapping. */ static BOOL macho_map_ranges(const struct macho_file_map* fmap, ULONG_PTR offset1, ULONG_PTR len1, ULONG_PTR offset2, ULONG_PTR len2, const void** mapped1, const void** mapped2) { ULONG_PTR aligned_offset1, aligned_map_end1; ULONG_PTR aligned_offset2, aligned_map_end2; TRACE("(%p/%p, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, %p, %p)\n", fmap, fmap->handle, offset1, len1, offset2, len2, mapped1, mapped2); macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL); macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL); if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1) { *mapped1 = macho_map_range(fmap, offset1, len1, NULL); if (*mapped1 != IMAGE_NO_MAP) { *mapped2 = macho_map_range(fmap, offset2, len2, NULL); if (*mapped2 == IMAGE_NO_MAP) macho_unmap_range(NULL, mapped1, fmap, offset1, len1); } } else { if (offset1 < offset2) { *mapped1 = macho_map_range(fmap, offset1, offset2 + len2 - offset1, NULL); if (*mapped1 != IMAGE_NO_MAP) *mapped2 = (const char*)*mapped1 + offset2 - offset1; } else { *mapped2 = macho_map_range(fmap, offset2, offset1 + len1 - offset2, NULL); if (*mapped2 != IMAGE_NO_MAP) *mapped1 = (const char*)*mapped2 + offset1 - offset2; } } TRACE(" => %p, %p\n", *mapped1, *mapped2); return (*mapped1 != IMAGE_NO_MAP) && (*mapped2 != IMAGE_NO_MAP); } /****************************************************************** * macho_unmap_ranges * * Unmaps two ranges (offset, length in bytes) of a Mach-O file * from memory. Use for ranges which were mapped by * macho_map_ranges. */ static void macho_unmap_ranges(const struct macho_file_map* fmap, ULONG_PTR offset1, ULONG_PTR len1, ULONG_PTR offset2, ULONG_PTR len2, const void** mapped1, const void** mapped2) { ULONG_PTR aligned_offset1, aligned_map_end1; ULONG_PTR aligned_offset2, aligned_map_end2; TRACE("(%p/%p, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, %p/%p, %p/%p)\n", fmap, fmap->handle, offset1, len1, offset2, len2, mapped1, *mapped1, mapped2, *mapped2); macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL); macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL); if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1) { macho_unmap_range(NULL, mapped1, fmap, offset1, len1); macho_unmap_range(NULL, mapped2, fmap, offset2, len2); } else { if (offset1 < offset2) { macho_unmap_range(NULL, mapped1, fmap, offset1, offset2 + len2 - offset1); *mapped2 = IMAGE_NO_MAP; } else { macho_unmap_range(NULL, mapped2, fmap, offset2, offset1 + len1 - offset2); *mapped1 = IMAGE_NO_MAP; } } } /****************************************************************** * macho_find_section */ static BOOL macho_find_segment_section(struct image_file_map* ifm, const char* segname, const char* sectname, struct image_section_map* ism) { struct macho_file_map* fmap; unsigned i; char tmp[sizeof(fmap->sect[0].section.sectname)]; /* Other parts of dbghelp use section names like ".eh_frame". Mach-O uses names like "__eh_frame". Convert those. */ if (sectname[0] == '.') { lstrcpynA(tmp, "__", sizeof(tmp)); lstrcpynA(tmp + 2, sectname + 1, sizeof(tmp) - 2); sectname = tmp; } while (ifm) { fmap = &ifm->u.macho; for (i = 0; i < fmap->num_sections; i++) { if (!fmap->sect[i].ignored && strcmp(fmap->sect[i].section.sectname, sectname) == 0 && (!segname || strcmp(fmap->sect[i].section.segname, segname) == 0)) { ism->fmap = ifm; ism->sidx = i; return TRUE; } } ifm = fmap->dsym; } ism->fmap = NULL; ism->sidx = -1; return FALSE; } static BOOL macho_find_section(struct image_file_map* ifm, const char* sectname, struct image_section_map* ism) { return macho_find_segment_section(ifm, NULL, sectname, ism); } /****************************************************************** * macho_map_section */ const char* macho_map_section(struct image_section_map* ism) { struct macho_file_map* fmap = &ism->fmap->u.macho; assert(ism->fmap->modtype == DMT_MACHO); if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || fmap->sect[ism->sidx].ignored) return IMAGE_NO_MAP; return macho_map_range(fmap, fmap->sect[ism->sidx].section.offset, fmap->sect[ism->sidx].section.size, &fmap->sect[ism->sidx].mapped); } /****************************************************************** * macho_unmap_section */ void macho_unmap_section(struct image_section_map* ism) { struct macho_file_map* fmap = &ism->fmap->u.macho; if (ism->sidx >= 0 && ism->sidx < fmap->num_sections && fmap->sect[ism->sidx].mapped != IMAGE_NO_MAP) { macho_unmap_range(&fmap->sect[ism->sidx].mapped, NULL, fmap, fmap->sect[ism->sidx].section.offset, fmap->sect[ism->sidx].section.size); } } /****************************************************************** * macho_get_map_rva */ DWORD_PTR macho_get_map_rva(const struct image_section_map* ism) { if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || ism->fmap->u.macho.sect[ism->sidx].ignored) return 0; return ism->fmap->u.macho.sect[ism->sidx].section.addr - ism->fmap->u.macho.segs_start; } /****************************************************************** * macho_get_map_size */ unsigned macho_get_map_size(const struct image_section_map* ism) { if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || ism->fmap->u.macho.sect[ism->sidx].ignored) return 0; return ism->fmap->u.macho.sect[ism->sidx].section.size; } static const struct image_file_map_ops macho_file_map_ops = { macho_map_section, macho_unmap_section, macho_find_section, macho_get_map_rva, macho_get_map_size, macho_unmap_file, }; /****************************************************************** * macho_map_load_commands * * Maps the load commands from a Mach-O file into memory */ static const struct macho_load_command* macho_map_load_commands(struct macho_file_map* fmap) { if (fmap->load_commands == IMAGE_NO_MAP) { fmap->load_commands = (const struct macho_load_command*) macho_map_range( fmap, fmap->header_size, fmap->commands_size, NULL); TRACE("Mapped load commands: %p\n", fmap->load_commands); } return fmap->load_commands; } /****************************************************************** * macho_unmap_load_commands * * Unmaps the load commands of a Mach-O file from memory */ static void macho_unmap_load_commands(struct macho_file_map* fmap) { if (fmap->load_commands != IMAGE_NO_MAP) { TRACE("Unmapping load commands: %p\n", fmap->load_commands); macho_unmap_range(NULL, (const void**)&fmap->load_commands, fmap, fmap->header_size, fmap->commands_size); } } /****************************************************************** * macho_next_load_command * * Advance to the next load command */ static const struct macho_load_command* macho_next_load_command(const struct macho_load_command* lc) { return (const struct macho_load_command*)((const char*)lc + lc->cmdsize); } /****************************************************************** * macho_enum_load_commands * * Enumerates the load commands for a Mach-O file, selecting by * the command type, calling a callback for each. If the callback * returns <0, that indicates an error. If it returns >0, that means * it's not interested in getting any more load commands. * If this function returns <0, that's an error produced by the * callback. If >=0, that's the count of load commands successfully * processed. */ static int macho_enum_load_commands(struct image_file_map *ifm, unsigned cmd, int (*cb)(struct image_file_map*, const struct macho_load_command*, void*), void* user) { struct macho_file_map* fmap = &ifm->u.macho; const struct macho_load_command* lc; int i; int count = 0; TRACE("(%p/%p, %u, %p, %p)\n", fmap, fmap->handle, cmd, cb, user); if ((lc = macho_map_load_commands(fmap)) == IMAGE_NO_MAP) return -1; TRACE("%lu total commands\n", fmap->commands_count); for (i = 0; i < fmap->commands_count; i++, lc = macho_next_load_command(lc)) { int result; if (cmd && cmd != lc->cmd) continue; count++; result = cb(ifm, lc, user); TRACE("load_command[%d] (%p), cmd %u; callback => %d\n", i, lc, lc->cmd, result); if (result) return (result < 0) ? result : count; } return count; } /****************************************************************** * macho_count_sections * * Callback for macho_enum_load_commands. Counts the number of * significant sections in a Mach-O file. All commands are * expected to be of LC_SEGMENT[_64] type. */ static int macho_count_sections(struct image_file_map* ifm, const struct macho_load_command* lc, void* user) { char segname[16]; size_t nsects; if (ifm->addr_size == 32) { const struct macho_segment_command32 *sc = (const struct macho_segment_command32 *)lc; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; } else { const struct macho_segment_command *sc = (const struct macho_segment_command *)lc; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; } TRACE("(%p/%p, %p, %p) segment %s\n", ifm, ifm->u.macho.handle, lc, user, debugstr_an(segname, sizeof(segname))); ifm->u.macho.num_sections += nsects; return 0; } /****************************************************************** * macho_load_section_info * * Callback for macho_enum_load_commands. Accumulates the address * range covered by the segments of a Mach-O file and builds the * section map. All commands are expected to be of LC_SEGMENT[_64] type. */ static int macho_load_section_info(struct image_file_map* ifm, const struct macho_load_command* lc, void* user) { struct macho_file_map* fmap = &ifm->u.macho; struct section_info* info = user; BOOL ignore; int i; ULONG_PTR tmp, page_mask = sysinfo.dwPageSize - 1; UINT64 vmaddr, vmsize; char segname[16]; size_t nsects; const void *sections; if (ifm->addr_size == 32) { const struct macho_segment_command32 *sc = (const struct macho_segment_command32 *)lc; vmaddr = sc->vmaddr; vmsize = sc->vmsize; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; sections = (const void *)(sc + 1); } else { const struct macho_segment_command *sc = (const struct macho_segment_command *)lc; vmaddr = sc->vmaddr; vmsize = sc->vmsize; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; sections = (const void *)(sc + 1); } TRACE("(%p/%p, %p, %p) before: 0x%08lx - 0x%08lx\n", fmap, fmap->handle, lc, user, (ULONG_PTR)fmap->segs_start, (ULONG_PTR)fmap->segs_size); TRACE("Segment command vm: 0x%08lx - 0x%08lx\n", (ULONG_PTR)vmaddr, (ULONG_PTR)(vmaddr + vmsize)); /* Images in the dyld shared cache have their segments mapped non-contiguously. We don't know how to properly locate any of the segments other than __TEXT, so ignore them. */ ignore = (info->split_segs && strcmp(segname, "__TEXT")); if (!strncmp(segname, "WINE_", 5)) TRACE("Ignoring special Wine segment %s\n", debugstr_an(segname, sizeof(segname))); else if (!strncmp(segname, "__PAGEZERO", 10)) TRACE("Ignoring __PAGEZERO segment\n"); else if (ignore) TRACE("Ignoring %s segment because image has split segments\n", segname); else { /* If this segment starts before previously-known earliest, record new earliest. */ if (vmaddr < fmap->segs_start) fmap->segs_start = vmaddr; /* If this segment extends beyond previously-known furthest, record new furthest. */ tmp = (vmaddr + vmsize + page_mask) & ~page_mask; if (fmap->segs_size < tmp) fmap->segs_size = tmp; TRACE("after: 0x%08lx - 0x%08lx\n", (ULONG_PTR)fmap->segs_start, (ULONG_PTR)fmap->segs_size); } for (i = 0; i < nsects; i++) { if (ifm->addr_size == 32) { const struct macho_section32 *section = &((const struct macho_section32 *)sections)[i]; memcpy(fmap->sect[info->section_index].section.sectname, section->sectname, sizeof(section->sectname)); memcpy(fmap->sect[info->section_index].section.segname, section->segname, sizeof(section->segname)); fmap->sect[info->section_index].section.addr = section->addr; fmap->sect[info->section_index].section.size = section->size; fmap->sect[info->section_index].section.offset = section->offset; fmap->sect[info->section_index].section.align = section->align; fmap->sect[info->section_index].section.reloff = section->reloff; fmap->sect[info->section_index].section.nreloc = section->nreloc; fmap->sect[info->section_index].section.flags = section->flags; } else fmap->sect[info->section_index].section = ((const struct macho_section *)sections)[i]; fmap->sect[info->section_index].mapped = IMAGE_NO_MAP; fmap->sect[info->section_index].ignored = ignore; info->section_index++; } return 0; } /****************************************************************** * find_uuid * * Callback for macho_enum_load_commands. Records the UUID load * command of a Mach-O file. */ static int find_uuid(struct image_file_map* ifm, const struct macho_load_command* lc, void* user) { ifm->u.macho.uuid = (const struct macho_uuid_command*)lc; return 1; } /****************************************************************** * reset_file_map */ static inline void reset_file_map(struct image_file_map* ifm) { struct macho_file_map* fmap = &ifm->u.macho; fmap->handle = INVALID_HANDLE_VALUE; fmap->dsym = NULL; fmap->load_commands = IMAGE_NO_MAP; fmap->uuid = NULL; fmap->num_sections = 0; fmap->sect = NULL; } /****************************************************************** * macho_map_file * * Maps a Mach-O file into memory (and checks it's a real Mach-O file) */ static BOOL macho_map_file(struct process *pcs, const WCHAR *filenameW, BOOL split_segs, struct image_file_map* ifm) { struct macho_file_map* fmap = &ifm->u.macho; struct macho_header mach_header; int i; WCHAR* filename; struct section_info info; BOOL ret = FALSE; UINT32 target_cpu = (pcs->is_64bit) ? MACHO_CPU_TYPE_X86_64 : MACHO_CPU_TYPE_X86; UINT32 target_magic = (pcs->is_64bit) ? MACHO_MH_MAGIC_64 : MACHO_MH_MAGIC_32; UINT32 target_cmd = (pcs->is_64bit) ? MACHO_LC_SEGMENT_64 : MACHO_LC_SEGMENT; DWORD bytes_read; struct { UINT32 magic; /* FAT_MAGIC or FAT_MAGIC_64 */ UINT32 nfat_arch; /* number of structs that follow */ } fat_header; TRACE("(%s, %p)\n", debugstr_w(filenameW), fmap); reset_file_map(ifm); ifm->modtype = DMT_MACHO; ifm->ops = &macho_file_map_ops; ifm->alternate = NULL; ifm->addr_size = (pcs->is_64bit) ? 64 : 32; fmap->header_size = (pcs->is_64bit) ? sizeof(struct macho_header) : FIELD_OFFSET(struct macho_header, reserved); if (!(filename = get_dos_file_name(filenameW))) return FALSE; /* Now open the file, so that we can map it. */ fmap->handle = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); if (fmap->handle == INVALID_HANDLE_VALUE) { TRACE("failed to open file %s: %d\n", debugstr_w(filename), errno); goto done; } if (!ReadFile(fmap->handle, &fat_header, sizeof(fat_header), &bytes_read, NULL) || bytes_read != sizeof(fat_header)) { TRACE("failed to read fat header: %u\n", GetLastError()); goto done; } TRACE("... got possible fat header\n"); /* Fat header is always in big-endian order. */ if (swap_ulong_be_to_host(fat_header.magic) == MACHO_FAT_MAGIC) { int narch = swap_ulong_be_to_host(fat_header.nfat_arch); for (i = 0; i < narch; i++) { struct { UINT32 cputype; /* cpu specifier (int) */ UINT32 cpusubtype; /* machine specifier (int) */ UINT32 offset; /* file offset to this object file */ UINT32 size; /* size of this object file */ UINT32 align; /* alignment as a power of 2 */ } fat_arch; if (!ReadFile(fmap->handle, &fat_arch, sizeof(fat_arch), &bytes_read, NULL) || bytes_read != sizeof(fat_arch)) goto done; if (swap_ulong_be_to_host(fat_arch.cputype) == target_cpu) { fmap->arch_offset = swap_ulong_be_to_host(fat_arch.offset); break; } } if (i >= narch) goto done; TRACE("... found target arch (%d)\n", target_cpu); } else { fmap->arch_offset = 0; TRACE("... not a fat header\n"); } /* Individual architecture (standalone or within a fat file) is in its native byte order. */ SetFilePointer(fmap->handle, fmap->arch_offset, 0, FILE_BEGIN); if (!ReadFile(fmap->handle, &mach_header, fmap->header_size, &bytes_read, NULL) || bytes_read != fmap->header_size) goto done; TRACE("... got possible Mach header\n"); /* and check for a Mach-O header */ if (mach_header.magic != target_magic || mach_header.cputype != target_cpu) goto done; fmap->commands_size = mach_header.sizeofcmds; fmap->commands_count = mach_header.ncmds; /* Make sure the file type is one of the ones we expect. */ switch (mach_header.filetype) { case MACHO_MH_EXECUTE: case MACHO_MH_DYLIB: case MACHO_MH_DYLINKER: case MACHO_MH_BUNDLE: case MACHO_MH_DSYM: break; default: goto done; } TRACE("... verified Mach header\n"); fmap->num_sections = 0; if (macho_enum_load_commands(ifm, target_cmd, macho_count_sections, NULL) < 0) goto done; TRACE("%d sections\n", fmap->num_sections); fmap->sect = HeapAlloc(GetProcessHeap(), 0, fmap->num_sections * sizeof(fmap->sect[0])); if (!fmap->sect) goto done; fmap->segs_size = 0; fmap->segs_start = ~0L; info.split_segs = split_segs; info.section_index = 0; if (macho_enum_load_commands(ifm, target_cmd, macho_load_section_info, &info) < 0) { fmap->num_sections = 0; goto done; } fmap->segs_size -= fmap->segs_start; TRACE("segs_start: 0x%08lx, segs_size: 0x%08lx\n", (ULONG_PTR)fmap->segs_start, (ULONG_PTR)fmap->segs_size); if (macho_enum_load_commands(ifm, MACHO_LC_UUID, find_uuid, NULL) < 0) goto done; if (fmap->uuid) { char uuid_string[UUID_STRING_LEN]; TRACE("UUID %s\n", format_uuid(fmap->uuid->uuid, uuid_string)); } else TRACE("no UUID found\n"); ret = TRUE; done: if (!ret) macho_unmap_file(ifm); HeapFree(GetProcessHeap(), 0, filename); return ret; } /****************************************************************** * macho_unmap_file * * Unmaps a Mach-O file from memory (previously mapped with macho_map_file) */ static void macho_unmap_file(struct image_file_map* ifm) { struct image_file_map* cursor; TRACE("(%p/%p)\n", ifm, ifm->u.macho.handle); cursor = ifm; while (cursor) { struct image_file_map* next; if (ifm->u.macho.handle != INVALID_HANDLE_VALUE) { struct image_section_map ism; ism.fmap = ifm; for (ism.sidx = 0; ism.sidx < ifm->u.macho.num_sections; ism.sidx++) macho_unmap_section(&ism); HeapFree(GetProcessHeap(), 0, ifm->u.macho.sect); macho_unmap_load_commands(&ifm->u.macho); CloseHandle(ifm->u.macho.handle); ifm->u.macho.handle = INVALID_HANDLE_VALUE; } next = cursor->u.macho.dsym; if (cursor != ifm) HeapFree(GetProcessHeap(), 0, cursor); cursor = next; } } /****************************************************************** * macho_sect_is_code * * Checks if a section, identified by sectidx which is a 1-based * index into the sections of all segments, in order of load * commands, contains code. */ static BOOL macho_sect_is_code(struct macho_file_map* fmap, unsigned char sectidx) { BOOL ret; TRACE("(%p/%p, %u)\n", fmap, fmap->handle, sectidx); if (!sectidx) return FALSE; sectidx--; /* convert from 1-based to 0-based */ if (sectidx >= fmap->num_sections || fmap->sect[sectidx].ignored) return FALSE; ret = (!(fmap->sect[sectidx].section.flags & MACHO_SECTION_TYPE) && (fmap->sect[sectidx].section.flags & (MACHO_S_ATTR_PURE_INSTRUCTIONS | MACHO_S_ATTR_SOME_INSTRUCTIONS))); TRACE("-> %d\n", ret); return ret; } struct symtab_elt { struct hash_table_elt ht_elt; struct symt_compiland* compiland; ULONG_PTR addr; unsigned char is_code:1, is_public:1, is_global:1, used:1; }; struct macho_debug_info { struct macho_file_map* fmap; struct module* module; struct pool pool; struct hash_table ht_symtab; }; /****************************************************************** * macho_stabs_def_cb * * Callback for stabs_parse. Collect symbol definitions. */ static void macho_stabs_def_cb(struct module* module, ULONG_PTR load_offset, const char* name, ULONG_PTR offset, BOOL is_public, BOOL is_global, unsigned char sectidx, struct symt_compiland* compiland, void* user) { struct macho_debug_info* mdi = user; struct symtab_elt* ste; TRACE("(%p, 0x%08lx, %s, 0x%08lx, %d, %d, %u, %p, %p/%p/%p)\n", module, load_offset, debugstr_a(name), offset, is_public, is_global, sectidx, compiland, mdi, mdi->fmap, mdi->fmap->handle); /* Defer the creation of new non-debugging symbols until after we've * finished parsing the stabs. */ ste = pool_alloc(&mdi->pool, sizeof(*ste)); ste->ht_elt.name = pool_strdup(&mdi->pool, name); ste->compiland = compiland; ste->addr = load_offset + offset; ste->is_code = !!macho_sect_is_code(mdi->fmap, sectidx); ste->is_public = !!is_public; ste->is_global = !!is_global; ste->used = 0; hash_table_add(&mdi->ht_symtab, &ste->ht_elt); } /****************************************************************** * macho_parse_symtab * * Callback for macho_enum_load_commands. Processes the LC_SYMTAB * load commands from the Mach-O file. */ static int macho_parse_symtab(struct image_file_map* ifm, const struct macho_load_command* lc, void* user) { struct macho_file_map* fmap = &ifm->u.macho; const struct macho_symtab_command* sc = (const struct macho_symtab_command*)lc; struct macho_debug_info* mdi = user; const char* stabstr; int ret = 0; size_t stabsize = (ifm->addr_size == 32) ? sizeof(struct stab_nlist) : sizeof(struct macho64_nlist); const char *stab; TRACE("(%p/%p, %p, %p) %u syms at 0x%08x, strings 0x%08x - 0x%08x\n", fmap, fmap->handle, lc, user, sc->nsyms, sc->symoff, sc->stroff, sc->stroff + sc->strsize); if (!macho_map_ranges(fmap, sc->symoff, sc->nsyms * stabsize, sc->stroff, sc->strsize, (const void**)&stab, (const void**)&stabstr)) return 0; if (!stabs_parse(mdi->module, mdi->module->format_info[DFI_MACHO]->u.macho_info->load_addr - fmap->segs_start, stab, sc->nsyms, stabsize, stabstr, sc->strsize, macho_stabs_def_cb, mdi)) ret = -1; macho_unmap_ranges(fmap, sc->symoff, sc->nsyms * stabsize, sc->stroff, sc->strsize, (const void**)&stab, (const void**)&stabstr); return ret; } /****************************************************************** * macho_finish_stabs * * Integrate the non-debugging symbols we've gathered into the * symbols that were generated during stabs parsing. */ static void macho_finish_stabs(struct module* module, struct hash_table* ht_symtab) { struct hash_table_iter hti_ours; struct symtab_elt* ste; BOOL adjusted = FALSE; TRACE("(%p, %p)\n", module, ht_symtab); /* For each of our non-debugging symbols, see if it can provide some * missing details to one of the module's known symbols. */ hash_table_iter_init(ht_symtab, &hti_ours, NULL); while ((ste = hash_table_iter_up(&hti_ours))) { struct hash_table_iter hti_modules; void* ptr; struct symt_ht* sym; struct symt_function* func; struct symt_data* data; hash_table_iter_init(&module->ht_symbols, &hti_modules, ste->ht_elt.name); while ((ptr = hash_table_iter_up(&hti_modules))) { sym = CONTAINING_RECORD(ptr, struct symt_ht, hash_elt); if (strcmp(sym->hash_elt.name, ste->ht_elt.name)) continue; switch (sym->symt.tag) { case SymTagFunction: func = (struct symt_function*)sym; if (func->address == module->format_info[DFI_MACHO]->u.macho_info->load_addr) { TRACE("Adjusting function %p/%s!%s from 0x%08lx to 0x%08lx\n", func, debugstr_w(module->module.ModuleName), sym->hash_elt.name, func->address, ste->addr); func->address = ste->addr; adjusted = TRUE; } if (func->address == ste->addr) ste->used = 1; break; case SymTagData: data = (struct symt_data*)sym; switch (data->kind) { case DataIsGlobal: case DataIsFileStatic: if (data->u.var.offset == module->format_info[DFI_MACHO]->u.macho_info->load_addr) { TRACE("Adjusting data symbol %p/%s!%s from 0x%08lx to 0x%08lx\n", data, debugstr_w(module->module.ModuleName), sym->hash_elt.name, data->u.var.offset, ste->addr); data->u.var.offset = ste->addr; adjusted = TRUE; } if (data->u.var.offset == ste->addr) { enum DataKind new_kind; new_kind = ste->is_global ? DataIsGlobal : DataIsFileStatic; if (data->kind != new_kind) { WARN("Changing kind for %p/%s!%s from %d to %d\n", sym, debugstr_w(module->module.ModuleName), sym->hash_elt.name, (int)data->kind, (int)new_kind); data->kind = new_kind; adjusted = TRUE; } ste->used = 1; } break; default:; } break; default: TRACE("Ignoring tag %u\n", sym->symt.tag); break; } } } if (adjusted) { /* since we may have changed some addresses, mark the module to be resorted */ module->sortlist_valid = FALSE; } /* Mark any of our non-debugging symbols which fall on an already-used * address as "used". This allows us to skip them in the next loop, * below. We do this in separate loops because symt_new_* marks the * list as needing sorting and symt_find_nearest sorts if needed, * causing thrashing. */ if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY)) { hash_table_iter_init(ht_symtab, &hti_ours, NULL); while ((ste = hash_table_iter_up(&hti_ours))) { struct symt_ht* sym; ULONG64 addr; if (ste->used) continue; sym = symt_find_nearest(module, ste->addr); if (sym) symt_get_address(&sym->symt, &addr); if (sym && ste->addr == addr) { ULONG64 size = 0; DWORD kind = -1; ste->used = 1; /* If neither symbol has a correct size (ours never does), we * consider them both to be markers. No warning is needed in * that case. * Also, we check that we don't have two symbols, one local, the other * global, which is legal. */ symt_get_info(module, &sym->symt, TI_GET_LENGTH, &size); symt_get_info(module, &sym->symt, TI_GET_DATAKIND, &kind); if (size && kind == (ste->is_global ? DataIsGlobal : DataIsFileStatic)) FIXME("Duplicate in %s: %s<%08lx> %s<%s-%s>\n", debugstr_w(module->module.ModuleName), ste->ht_elt.name, ste->addr, sym->hash_elt.name, wine_dbgstr_longlong(addr), wine_dbgstr_longlong(size)); } } } /* For any of our remaining non-debugging symbols which have no match * among the module's known symbols, add them as new symbols. */ hash_table_iter_init(ht_symtab, &hti_ours, NULL); while ((ste = hash_table_iter_up(&hti_ours))) { if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY) && !ste->used) { if (ste->is_code) { symt_new_function(module, ste->compiland, ste->ht_elt.name, ste->addr, 0, NULL); } else { struct location loc; loc.kind = loc_absolute; loc.reg = 0; loc.offset = ste->addr; symt_new_global_variable(module, ste->compiland, ste->ht_elt.name, !ste->is_global, loc, 0, NULL); } ste->used = 1; } if (ste->is_public && !(dbghelp_options & SYMOPT_NO_PUBLICS)) { symt_new_public(module, ste->compiland, ste->ht_elt.name, ste->is_code, ste->addr, 0); } } } /****************************************************************** * try_dsym * * Try to load a debug symbol file from the given path and check * if its UUID matches the UUID of an already-mapped file. If so, * stash the file map in the "dsym" field of the file and return * TRUE. If it can't be mapped or its UUID doesn't match, return * FALSE. */ static BOOL try_dsym(struct process *pcs, const WCHAR* path, struct macho_file_map* fmap) { struct image_file_map dsym_ifm; if (macho_map_file(pcs, path, FALSE, &dsym_ifm)) { char uuid_string[UUID_STRING_LEN]; if (dsym_ifm.u.macho.uuid && !memcmp(dsym_ifm.u.macho.uuid->uuid, fmap->uuid->uuid, sizeof(fmap->uuid->uuid))) { TRACE("found matching debug symbol file at %s\n", debugstr_w(path)); fmap->dsym = HeapAlloc(GetProcessHeap(), 0, sizeof(dsym_ifm)); *fmap->dsym = dsym_ifm; return TRUE; } TRACE("candidate debug symbol file at %s has wrong UUID %s; ignoring\n", debugstr_w(path), format_uuid(dsym_ifm.u.macho.uuid->uuid, uuid_string)); macho_unmap_file(&dsym_ifm); } else TRACE("couldn't map file at %s\n", debugstr_w(path)); return FALSE; } /****************************************************************** * find_and_map_dsym * * Search for a debugging symbols file associated with a module and * map it. First look for a .dSYM bundle next to the module file * (e.g. .dSYM/Contents/Resources/DWARF/) * as produced by dsymutil. Next, look for a .dwarf file next to * the module file (e.g. .dwarf) as produced by * "dsymutil --flat". Finally, use Spotlight to search for a * .dSYM bundle with the same UUID as the module file. */ static void find_and_map_dsym(struct process *pcs, struct module* module) { static const WCHAR dot_dsym[] = {'.','d','S','Y','M',0}; static const WCHAR dsym_subpath[] = {'/','C','o','n','t','e','n','t','s','/','R','e','s','o','u','r','c','e','s','/','D','W','A','R','F','/',0}; static const WCHAR dot_dwarf[] = {'.','d','w','a','r','f',0}; struct macho_file_map* fmap = &module->format_info[DFI_MACHO]->u.macho_info->file_map.u.macho; const WCHAR* p; size_t len; WCHAR* path = NULL; char uuid_string[UUID_STRING_LEN]; CFStringRef uuid_cfstring; CFStringRef query_string; MDQueryRef query = NULL; /* Without a UUID, we can't verify that any debug info file we find corresponds to this file. Better to have no debug info than incorrect debug info. */ if (!fmap->uuid) return; p = file_name(module->module.LoadedImageName); len = strlenW(module->module.LoadedImageName) + strlenW(dot_dsym) + strlenW(dsym_subpath) + strlenW(p) + 1; path = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); if (!path) return; strcpyW(path, module->module.LoadedImageName); strcatW(path, dot_dsym); strcatW(path, dsym_subpath); strcatW(path, p); if (try_dsym(pcs, path, fmap)) goto found; strcpyW(path + strlenW(module->module.LoadedImageName), dot_dwarf); if (try_dsym(pcs, path, fmap)) goto found; format_uuid(fmap->uuid->uuid, uuid_string); uuid_cfstring = CFStringCreateWithCString(NULL, uuid_string, kCFStringEncodingASCII); query_string = CFStringCreateWithFormat(NULL, NULL, CFSTR("com_apple_xcode_dsym_uuids == \"%@\""), uuid_cfstring); CFRelease(uuid_cfstring); query = MDQueryCreate(NULL, query_string, NULL, NULL); CFRelease(query_string); MDQuerySetMaxCount(query, 1); if (MDQueryExecute(query, kMDQuerySynchronous) && MDQueryGetResultCount(query) >= 1) { MDItemRef item = (MDItemRef)MDQueryGetResultAtIndex(query, 0); CFStringRef item_path = MDItemCopyAttribute(item, kMDItemPath); if (item_path) { CFIndex item_path_len = CFStringGetLength(item_path); if (item_path_len + strlenW(dsym_subpath) + strlenW(p) >= len) { HeapFree(GetProcessHeap(), 0, path); len = item_path_len + strlenW(dsym_subpath) + strlenW(p) + 1; path = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); } CFStringGetCharacters(item_path, CFRangeMake(0, item_path_len), (UniChar*)path); strcpyW(path + item_path_len, dsym_subpath); strcatW(path, p); CFRelease(item_path); if (try_dsym(pcs, path, fmap)) goto found; } } found: HeapFree(GetProcessHeap(), 0, path); if (query) CFRelease(query); } /****************************************************************** * image_uses_split_segs * * Determine if the Mach-O image loaded at a particular address in * the given process is in the dyld shared cache and therefore has * its segments mapped non-contiguously. * * The image header has to be loaded from the process's memory * because the relevant flag is only set in memory, not in the file. */ static BOOL image_uses_split_segs(struct process* process, ULONG_PTR load_addr) { BOOL split_segs = FALSE; if (load_addr) { UINT32 target_cpu = (process->is_64bit) ? MACHO_CPU_TYPE_X86_64 : MACHO_CPU_TYPE_X86; UINT32 target_magic = (process->is_64bit) ? MACHO_MH_MAGIC_64 : MACHO_MH_MAGIC_32; struct macho_header header; if (ReadProcessMemory(process->handle, (void*)load_addr, &header, FIELD_OFFSET(struct macho_header, reserved), NULL) && header.magic == target_magic && header.cputype == target_cpu && header.flags & MACHO_DYLD_IN_SHARED_CACHE) { split_segs = TRUE; } } return split_segs; } /****************************************************************** * macho_load_debug_info * * Loads Mach-O debugging information from the module image file. */ static BOOL macho_load_debug_info(struct process *pcs, struct module* module) { BOOL ret = FALSE; struct macho_debug_info mdi; int result; struct image_file_map *ifm; struct macho_file_map *fmap; if (module->type != DMT_MACHO || !module->format_info[DFI_MACHO]->u.macho_info) { ERR("Bad Mach-O module '%s'\n", debugstr_w(module->module.LoadedImageName)); return FALSE; } ifm = &module->format_info[DFI_MACHO]->u.macho_info->file_map; fmap = &ifm->u.macho; TRACE("(%p, %p/%p)\n", module, fmap, fmap->handle); module->module.SymType = SymExport; if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY)) { find_and_map_dsym(pcs, module); if (dwarf2_parse(module, module->reloc_delta, NULL /* FIXME: some thunks to deal with ? */, &module->format_info[DFI_MACHO]->u.macho_info->file_map)) ret = TRUE; } mdi.fmap = fmap; mdi.module = module; pool_init(&mdi.pool, 65536); hash_table_init(&mdi.pool, &mdi.ht_symtab, 256); result = macho_enum_load_commands(ifm, MACHO_LC_SYMTAB, macho_parse_symtab, &mdi); if (result > 0) ret = TRUE; else if (result < 0) WARN("Couldn't correctly read stabs\n"); if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY) && fmap->dsym) { mdi.fmap = &fmap->dsym->u.macho; result = macho_enum_load_commands(fmap->dsym, MACHO_LC_SYMTAB, macho_parse_symtab, &mdi); if (result > 0) ret = TRUE; else if (result < 0) WARN("Couldn't correctly read stabs\n"); } macho_finish_stabs(module, &mdi.ht_symtab); pool_destroy(&mdi.pool); return ret; } /****************************************************************** * macho_fetch_file_info * * Gathers some more information for a Mach-O module from a given file */ static BOOL macho_fetch_file_info(struct process* process, const WCHAR* name, ULONG_PTR load_addr, DWORD_PTR* base, DWORD* size, DWORD* checksum) { struct image_file_map fmap; BOOL split_segs; TRACE("(%s, %p, %p, %p)\n", debugstr_w(name), base, size, checksum); split_segs = image_uses_split_segs(process, load_addr); if (!macho_map_file(process, name, split_segs, &fmap)) return FALSE; if (base) *base = fmap.u.macho.segs_start; *size = fmap.u.macho.segs_size; *checksum = calc_crc32(fmap.u.macho.handle); macho_unmap_file(&fmap); return TRUE; } /****************************************************************** * macho_module_remove */ static void macho_module_remove(struct process* pcs, struct module_format* modfmt) { macho_unmap_file(&modfmt->u.macho_info->file_map); HeapFree(GetProcessHeap(), 0, modfmt); } /****************************************************************** * macho_load_file * * Loads the information for Mach-O module stored in 'filename'. * The module has been loaded at 'load_addr' address. * returns * FALSE if the file cannot be found/opened or if the file doesn't * contain symbolic info (or this info cannot be read or parsed) * TRUE on success */ static BOOL macho_load_file(struct process* pcs, const WCHAR* filename, ULONG_PTR load_addr, struct macho_info* macho_info) { BOOL ret = TRUE; BOOL split_segs; struct image_file_map fmap; TRACE("(%p/%p, %s, 0x%08lx, %p/0x%08x)\n", pcs, pcs->handle, debugstr_w(filename), load_addr, macho_info, macho_info->flags); split_segs = image_uses_split_segs(pcs, load_addr); if (!macho_map_file(pcs, filename, split_segs, &fmap)) return FALSE; if (macho_info->flags & MACHO_INFO_MODULE) { struct macho_module_info *macho_module_info; struct module_format* modfmt = HeapAlloc(GetProcessHeap(), 0, sizeof(struct module_format) + sizeof(struct macho_module_info)); if (!modfmt) goto leave; if (!load_addr) load_addr = fmap.u.macho.segs_start; macho_info->module = module_new(pcs, filename, DMT_MACHO, FALSE, load_addr, fmap.u.macho.segs_size, 0, calc_crc32(fmap.u.macho.handle)); if (!macho_info->module) { HeapFree(GetProcessHeap(), 0, modfmt); goto leave; } macho_info->module->reloc_delta = macho_info->module->module.BaseOfImage - fmap.u.macho.segs_start; macho_module_info = (void*)(modfmt + 1); macho_info->module->format_info[DFI_MACHO] = modfmt; modfmt->module = macho_info->module; modfmt->remove = macho_module_remove; modfmt->loc_compute = NULL; modfmt->u.macho_info = macho_module_info; macho_module_info->load_addr = load_addr; macho_module_info->file_map = fmap; reset_file_map(&fmap); if (dbghelp_options & SYMOPT_DEFERRED_LOADS) macho_info->module->module.SymType = SymDeferred; else if (!macho_load_debug_info(pcs, macho_info->module)) ret = FALSE; macho_info->module->format_info[DFI_MACHO]->u.macho_info->in_use = 1; macho_info->module->format_info[DFI_MACHO]->u.macho_info->is_loader = 0; TRACE("module = %p\n", macho_info->module); } if (macho_info->flags & MACHO_INFO_NAME) { WCHAR* ptr; ptr = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename) + 1) * sizeof(WCHAR)); if (ptr) { strcpyW(ptr, filename); macho_info->module_name = ptr; } else ret = FALSE; TRACE("module_name = %p %s\n", macho_info->module_name, debugstr_w(macho_info->module_name)); } leave: macho_unmap_file(&fmap); TRACE(" => %d\n", ret); return ret; } struct macho_load_params { struct process *process; ULONG_PTR load_addr; struct macho_info *macho_info; }; static BOOL macho_load_file_cb(void *param, HANDLE handle, const WCHAR *filename) { struct macho_load_params *macho_load = param; return macho_load_file(macho_load->process, filename, macho_load->load_addr, macho_load->macho_info); } /****************************************************************** * macho_search_and_load_file * * Lookup a file in standard Mach-O locations, and if found, load it */ static BOOL macho_search_and_load_file(struct process* pcs, const WCHAR* filename, ULONG_PTR load_addr, struct macho_info* macho_info) { BOOL ret = FALSE; struct module* module; static const WCHAR S_libstdcPPW[] = {'l','i','b','s','t','d','c','+','+','\0'}; const WCHAR* p; struct macho_load_params load_params; TRACE("(%p/%p, %s, 0x%08lx, %p)\n", pcs, pcs->handle, debugstr_w(filename), load_addr, macho_info); if (filename == NULL || *filename == '\0') return FALSE; if ((module = module_is_already_loaded(pcs, filename))) { macho_info->module = module; module->format_info[DFI_MACHO]->u.macho_info->in_use = 1; return module->module.SymType; } if (strstrW(filename, S_libstdcPPW)) return FALSE; /* We know we can't do it */ load_params.process = pcs; load_params.load_addr = load_addr; load_params.macho_info = macho_info; /* If has no directories, try PATH first. */ p = file_name(filename); if (p == filename) { ret = search_unix_path(filename, getenv("PATH"), macho_load_file_cb, &load_params); } /* Try DYLD_LIBRARY_PATH, with just the filename (no directories). */ if (!ret) ret = search_unix_path(p, getenv("DYLD_LIBRARY_PATH"), macho_load_file_cb, &load_params); /* Try the path as given. */ if (!ret) ret = macho_load_file(pcs, filename, load_addr, macho_info); /* Try DYLD_FALLBACK_LIBRARY_PATH, with just the filename (no directories). */ if (!ret) { const char* fallback = getenv("DYLD_FALLBACK_LIBRARY_PATH"); if (!fallback) fallback = "/usr/local/lib:/lib:/usr/lib"; ret = search_unix_path(p, fallback, macho_load_file_cb, &load_params); } if (!ret && p == filename) ret = search_dll_path(filename, macho_load_file_cb, &load_params); return ret; } /****************************************************************** * macho_enum_modules_internal * * Enumerate Mach-O modules from a running process */ static BOOL macho_enum_modules_internal(const struct process* pcs, const WCHAR* main_name, enum_modules_cb cb, void* user) { union wine_all_image_infos image_infos; union wine_image_info* info_array = NULL; ULONG_PTR len; int i; char bufstr[256]; WCHAR bufstrW[MAX_PATH]; BOOL ret = FALSE; TRACE("(%p/%p, %s, %p, %p)\n", pcs, pcs->handle, debugstr_w(main_name), cb, user); if (pcs->is_64bit) len = sizeof(image_infos.infos64); else len = sizeof(image_infos.infos32); if (!pcs->dbg_hdr_addr || !ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr, &image_infos, len, NULL)) goto done; if (!pcs->is_64bit) { struct dyld_all_image_infos32 temp = image_infos.infos32; image_infos.infos64.infoArrayCount = temp.infoArrayCount; image_infos.infos64.infoArray = temp.infoArray; } if (!image_infos.infos64.infoArray) goto done; TRACE("Process has %u image infos at %p\n", image_infos.infos64.infoArrayCount, (void*)image_infos.infos64.infoArray); if (pcs->is_64bit) len = sizeof(info_array->info64); else len = sizeof(info_array->info32); len *= image_infos.infos64.infoArrayCount; info_array = HeapAlloc(GetProcessHeap(), 0, len); if (!info_array || !ReadProcessMemory(pcs->handle, (void*)image_infos.infos64.infoArray, info_array, len, NULL)) goto done; TRACE("... read image infos\n"); for (i = 0; i < image_infos.infos64.infoArrayCount; i++) { struct dyld_image_info64 info; if (pcs->is_64bit) info = info_array[i].info64; else { struct dyld_image_info32 *info32 = &info_array->info32 + i; info.imageLoadAddress = info32->imageLoadAddress; info.imageFilePath = info32->imageFilePath; } if (info.imageFilePath && ReadProcessMemory(pcs->handle, (void*)info.imageFilePath, bufstr, sizeof(bufstr), NULL)) { bufstr[sizeof(bufstr) - 1] = '\0'; TRACE("[%d] image file %s\n", i, debugstr_a(bufstr)); MultiByteToWideChar(CP_UNIXCP, 0, bufstr, -1, bufstrW, ARRAY_SIZE(bufstrW)); if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name); if (!cb(bufstrW, info.imageLoadAddress, user)) break; } } ret = TRUE; done: HeapFree(GetProcessHeap(), 0, info_array); return ret; } struct macho_sync { struct process* pcs; struct macho_info macho_info; }; static BOOL macho_enum_sync_cb(const WCHAR* name, ULONG_PTR addr, void* user) { struct macho_sync* ms = user; TRACE("(%s, 0x%08lx, %p)\n", debugstr_w(name), addr, user); macho_search_and_load_file(ms->pcs, name, addr, &ms->macho_info); return TRUE; } /****************************************************************** * macho_synchronize_module_list * * Rescans the debuggee's modules list and synchronizes it with * the one from 'pcs', ie: * - if a module is in debuggee and not in pcs, it's loaded into pcs * - if a module is in pcs and not in debuggee, it's unloaded from pcs */ static BOOL macho_synchronize_module_list(struct process* pcs) { struct module* module; struct macho_sync ms; TRACE("(%p/%p)\n", pcs, pcs->handle); for (module = pcs->lmodules; module; module = module->next) { if (module->type == DMT_MACHO && !module->is_virtual) module->format_info[DFI_MACHO]->u.macho_info->in_use = 0; } ms.pcs = pcs; ms.macho_info.flags = MACHO_INFO_MODULE; if (!macho_enum_modules_internal(pcs, NULL, macho_enum_sync_cb, &ms)) return FALSE; module = pcs->lmodules; while (module) { if (module->type == DMT_MACHO && !module->is_virtual && !module->format_info[DFI_MACHO]->u.macho_info->in_use && !module->format_info[DFI_MACHO]->u.macho_info->is_loader) { module_remove(pcs, module); /* restart all over */ module = pcs->lmodules; } else module = module->next; } return TRUE; } /****************************************************************** * macho_enum_modules * * Enumerates the Mach-O loaded modules from a running target (hProc) * This function doesn't require that someone has called SymInitialize * on this very process. */ static BOOL macho_enum_modules(struct process* process, enum_modules_cb cb, void* user) { struct macho_info macho_info; BOOL ret; TRACE("(%p, %p, %p)\n", process->handle, cb, user); macho_info.flags = MACHO_INFO_NAME; ret = macho_enum_modules_internal(process, macho_info.module_name, cb, user); HeapFree(GetProcessHeap(), 0, (char*)macho_info.module_name); return ret; } struct macho_load { struct process* pcs; struct macho_info macho_info; const WCHAR* name; BOOL ret; }; /****************************************************************** * macho_load_cb * * Callback for macho_load_module, used to walk the list of loaded * modules. */ static BOOL macho_load_cb(const WCHAR* name, ULONG_PTR addr, void* user) { struct macho_load* ml = user; const WCHAR* p; TRACE("(%s, 0x%08lx, %p)\n", debugstr_w(name), addr, user); /* memcmp is needed for matches when bufstr contains also version information * ml->name: libc.so, name: libc.so.6.0 */ p = file_name(name); if (!memcmp(p, ml->name, lstrlenW(ml->name) * sizeof(WCHAR))) { ml->ret = macho_search_and_load_file(ml->pcs, name, addr, &ml->macho_info); return FALSE; } return TRUE; } /****************************************************************** * macho_load_module * * Loads a Mach-O module and stores it in process' module list. * Also, find module real name and load address from * the real loaded modules list in pcs address space. */ static struct module* macho_load_module(struct process* pcs, const WCHAR* name, ULONG_PTR addr) { struct macho_load ml; TRACE("(%p/%p, %s, 0x%08lx)\n", pcs, pcs->handle, debugstr_w(name), addr); ml.macho_info.flags = MACHO_INFO_MODULE; ml.ret = FALSE; if (pcs->dbg_hdr_addr) /* we're debugging a live target */ { ml.pcs = pcs; /* do only the lookup from the filename, not the path (as we lookup module * name in the process' loaded module list) */ ml.name = file_name(name); ml.ret = FALSE; if (!macho_enum_modules_internal(pcs, NULL, macho_load_cb, &ml)) return NULL; } else if (addr) { ml.name = name; ml.ret = macho_search_and_load_file(pcs, ml.name, addr, &ml.macho_info); } if (!ml.ret) return NULL; assert(ml.macho_info.module); return ml.macho_info.module; } /****************************************************************** * macho_search_loader * * Lookup in a running Mach-O process the loader, and sets its Mach-O link * address (for accessing the list of loaded images) in pcs. * If flags is MACHO_INFO_MODULE, the module for the loader is also * added as a module into pcs. */ static BOOL macho_search_loader(struct process* pcs, struct macho_info* macho_info) { BOOL ret = FALSE; union wine_all_image_infos image_infos; union wine_image_info image_info; unsigned int len; char path[PATH_MAX]; BOOL got_path = FALSE; if (pcs->is_64bit) len = sizeof(image_infos.infos64); else len = sizeof(image_infos.infos32); if (ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr, &image_infos, len, NULL)) { if (pcs->is_64bit) len = sizeof(image_info.info64); else { struct dyld_all_image_infos32 temp = image_infos.infos32; image_infos.infos64.infoArrayCount = temp.infoArrayCount; image_infos.infos64.infoArray = temp.infoArray; len = sizeof(image_info.info32); } if (image_infos.infos64.infoArray && image_infos.infos64.infoArrayCount && ReadProcessMemory(pcs->handle, (void*)image_infos.infos64.infoArray, &image_info, len, NULL)) { if (!pcs->is_64bit) { struct dyld_image_info32 temp = image_info.info32; image_info.info64.imageLoadAddress = temp.imageLoadAddress; image_info.info64.imageFilePath = temp.imageFilePath; } for (len = sizeof(path); image_info.info64.imageFilePath && len > 0; len /= 2) { if (ReadProcessMemory(pcs->handle, (void*)image_info.info64.imageFilePath, path, len, NULL)) { path[len - 1] = 0; got_path = TRUE; TRACE("got executable path from target's dyld image info: %s\n", debugstr_a(path)); break; } } } } if (got_path) { WCHAR* pathW; len = MultiByteToWideChar(CP_UNIXCP, 0, path, -1, NULL, 0); pathW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); if (pathW) { MultiByteToWideChar(CP_UNIXCP, 0, path, -1, pathW, len); ret = macho_load_file(pcs, pathW, 0, macho_info); HeapFree(GetProcessHeap(), 0, pathW); } } if (!ret) { WCHAR *loader = get_wine_loader_name(pcs); ret = loader && macho_search_and_load_file(pcs, loader, 0, macho_info); heap_free(loader); } return ret; } static const struct loader_ops macho_loader_ops = { macho_synchronize_module_list, macho_load_module, macho_load_debug_info, macho_enum_modules, macho_fetch_file_info, }; /****************************************************************** * macho_read_wine_loader_dbg_info * * Try to find a decent wine executable which could have loaded the debuggee */ BOOL macho_read_wine_loader_dbg_info(struct process* pcs, ULONG_PTR addr) { struct macho_info macho_info; TRACE("(%p/%p)\n", pcs, pcs->handle); pcs->dbg_hdr_addr = addr; macho_info.flags = MACHO_INFO_MODULE; if (!macho_search_loader(pcs, &macho_info)) return FALSE; macho_info.module->format_info[DFI_MACHO]->u.macho_info->is_loader = 1; module_set_module(macho_info.module, S_WineLoaderW); pcs->loader = &macho_loader_ops; TRACE("Found macho debug header %#lx\n", pcs->dbg_hdr_addr); return TRUE; } #else /* HAVE_MACH_O_LOADER_H */ BOOL macho_read_wine_loader_dbg_info(struct process* pcs, ULONG_PTR addr) { return FALSE; } #endif /* HAVE_MACH_O_LOADER_H */