/* * 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 <CoreFoundation/CFString.h> #define LoadResource mac_LoadResource #define GetCurrentThread mac_GetCurrentThread #include <CoreServices/CoreServices.h> #undef LoadResource #undef GetCurrentThread #undef DPRINTF #endif #include <stdio.h> #include <assert.h> #include <stdarg.h> #include <errno.h> #ifdef HAVE_SYS_STAT_H # include <sys/stat.h> #endif #ifdef HAVE_SYS_MMAN_H # include <sys/mman.h> #endif #include "ntstatus.h" #define WIN32_NO_STATUS #include "dbghelp_private.h" #include "winternl.h" #include "wine/library.h" #include "wine/debug.h" #include "image_private.h" #ifdef HAVE_MACH_O_LOADER_H #include <mach-o/fat.h> #include <mach-o/loader.h> #include <mach-o/nlist.h> #include <mach-o/dyld.h> #ifdef HAVE_MACH_O_DYLD_IMAGES_H #include <mach-o/dyld_images.h> #else struct dyld_image_info { const struct mach_header *imageLoadAddress; const char *imageFilePath; uintptr_t imageFileModDate; }; struct dyld_all_image_infos { uint32_t version; uint32_t infoArrayCount; const struct dyld_image_info *infoArray; void* notification; int processDetachedFromSharedRegion; }; #endif #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); #ifdef _WIN64 typedef struct segment_command_64 macho_segment_command; typedef struct nlist_64 macho_nlist; #define TARGET_CPU_TYPE CPU_TYPE_X86_64 #define TARGET_MH_MAGIC MH_MAGIC_64 #define TARGET_SEGMENT_COMMAND LC_SEGMENT_64 #else typedef struct segment_command macho_segment_command; typedef struct nlist macho_nlist; #define TARGET_CPU_TYPE CPU_TYPE_X86 #define TARGET_MH_MAGIC MH_MAGIC #define TARGET_SEGMENT_COMMAND LC_SEGMENT #endif /* 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 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; unsigned long load_addr; unsigned short in_use : 1, is_loader : 1; }; struct section_info { BOOL split_segs; unsigned int section_index; }; #define MACHO_INFO_DEBUG_HEADER 0x0001 #define MACHO_INFO_MODULE 0x0002 #define MACHO_INFO_NAME 0x0004 struct macho_info { unsigned flags; /* IN one (or several) of the MACHO_INFO constants */ unsigned long dbg_hdr_addr; /* OUT address of debug header (if MACHO_INFO_DEBUG_HEADER is set) */ 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_t 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, unsigned long offset, unsigned long len, unsigned long* out_aligned_offset, unsigned long* out_aligned_end, unsigned long* out_aligned_len, unsigned long* out_misalign) { unsigned long pagemask = sysconf( _SC_PAGESIZE ) - 1; unsigned long file_offset, misalign; file_offset = fmap->arch_offset + offset; misalign = file_offset & pagemask; *out_aligned_offset = file_offset - misalign; *out_aligned_end = (file_offset + len + pagemask) & ~pagemask; if (out_aligned_len) *out_aligned_len = *out_aligned_end - *out_aligned_offset; 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, unsigned long offset, unsigned long len, const char** base) { unsigned long misalign, aligned_offset, aligned_map_end, map_size; const void* aligned_ptr; TRACE("(%p/%d, 0x%08lx, 0x%08lx)\n", fmap, fmap->fd, offset, len); macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end, &map_size, &misalign); aligned_ptr = mmap(NULL, map_size, PROT_READ, MAP_PRIVATE, fmap->fd, aligned_offset); TRACE("Mapped (0x%08lx - 0x%08lx) to %p\n", aligned_offset, aligned_map_end, aligned_ptr); if (aligned_ptr == MAP_FAILED) return IMAGE_NO_MAP; 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, unsigned long offset, unsigned long len) { TRACE("(%p, %p, %p/%d, 0x%08lx, 0x%08lx)\n", base, mapped, fmap, fmap->fd, offset, len); if ((mapped && *mapped != IMAGE_NO_MAP) || (base && *base != IMAGE_NO_MAP)) { unsigned long misalign, aligned_offset, aligned_map_end, map_size; void* aligned_ptr; macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end, &map_size, &misalign); if (mapped) aligned_ptr = (char*)*mapped - misalign; else aligned_ptr = (void*)*base; if (munmap(aligned_ptr, map_size) < 0) WARN("Couldn't unmap the range\n"); TRACE("Unmapped (0x%08lx - 0x%08lx) from %p - %p\n", aligned_offset, aligned_map_end, aligned_ptr, (char*)aligned_ptr + map_size); 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, unsigned long offset1, unsigned long len1, unsigned long offset2, unsigned long len2, const void** mapped1, const void** mapped2) { unsigned long aligned_offset1, aligned_map_end1; unsigned long aligned_offset2, aligned_map_end2; TRACE("(%p/%d, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, %p, %p)\n", fmap, fmap->fd, offset1, len1, offset2, len2, mapped1, mapped2); macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL, NULL); macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL, 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, unsigned long offset1, unsigned long len1, unsigned long offset2, unsigned long len2, const void** mapped1, const void** mapped2) { unsigned long aligned_offset1, aligned_map_end1; unsigned long aligned_offset2, aligned_map_end2; TRACE("(%p/%d, 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx, %p/%p, %p/%p)\n", fmap, fmap->fd, offset1, len1, offset2, len2, mapped1, *mapped1, mapped2, *mapped2); macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL, NULL); macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL, 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 */ BOOL macho_find_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; } /****************************************************************** * 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; } /****************************************************************** * macho_map_load_commands * * Maps the load commands from a Mach-O file into memory */ static const struct load_command* macho_map_load_commands(struct macho_file_map* fmap) { if (fmap->load_commands == IMAGE_NO_MAP) { fmap->load_commands = (const struct load_command*) macho_map_range( fmap, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds, 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, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds); } } /****************************************************************** * macho_next_load_command * * Advance to the next load command */ static const struct load_command* macho_next_load_command(const struct load_command* lc) { return (const struct 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 macho_file_map* fmap, unsigned cmd, int (*cb)(struct macho_file_map*, const struct load_command*, void*), void* user) { const struct load_command* lc; int i; int count = 0; TRACE("(%p/%d, %u, %p, %p)\n", fmap, fmap->fd, cmd, cb, user); if ((lc = macho_map_load_commands(fmap)) == IMAGE_NO_MAP) return -1; TRACE("%d total commands\n", fmap->mach_header.ncmds); for (i = 0; i < fmap->mach_header.ncmds; i++, lc = macho_next_load_command(lc)) { int result; if (cmd && cmd != lc->cmd) continue; count++; result = cb(fmap, 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 macho_file_map* fmap, const struct load_command* lc, void* user) { const macho_segment_command* sc = (const macho_segment_command*)lc; TRACE("(%p/%d, %p, %p) segment %s\n", fmap, fmap->fd, lc, user, debugstr_an(sc->segname, sizeof(sc->segname))); fmap->num_sections += sc->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 macho_file_map* fmap, const struct load_command* lc, void* user) { const macho_segment_command* sc = (const macho_segment_command*)lc; struct section_info* info = user; BOOL ignore; const macho_section* section; int i; unsigned long tmp, page_mask = sysconf( _SC_PAGESIZE ) - 1; TRACE("(%p/%d, %p, %p) before: 0x%08lx - 0x%08lx\n", fmap, fmap->fd, lc, user, (unsigned long)fmap->segs_start, (unsigned long)fmap->segs_size); TRACE("Segment command vm: 0x%08lx - 0x%08lx\n", (unsigned long)sc->vmaddr, (unsigned long)(sc->vmaddr + sc->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(sc->segname, SEG_TEXT)); if (!strncmp(sc->segname, "WINE_", 5)) TRACE("Ignoring special Wine segment %s\n", debugstr_an(sc->segname, sizeof(sc->segname))); else if (!strncmp(sc->segname, "__PAGEZERO", 10)) TRACE("Ignoring __PAGEZERO segment\n"); else if (ignore) TRACE("Ignoring %s segment because image has split segments\n", sc->segname); else { /* If this segment starts before previously-known earliest, record new earliest. */ if (sc->vmaddr < fmap->segs_start) fmap->segs_start = sc->vmaddr; /* If this segment extends beyond previously-known furthest, record new furthest. */ tmp = (sc->vmaddr + sc->vmsize + page_mask) & ~page_mask; if (fmap->segs_size < tmp) fmap->segs_size = tmp; TRACE("after: 0x%08lx - 0x%08lx\n", (unsigned long)fmap->segs_start, (unsigned long)fmap->segs_size); } section = (const macho_section*)(sc + 1); for (i = 0; i < sc->nsects; i++) { fmap->sect[info->section_index].section = §ion[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 macho_file_map* fmap, const struct load_command* lc, void* user) { fmap->uuid = (const struct 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->fd = -1; 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(const WCHAR* filenameW, BOOL split_segs, struct image_file_map* ifm) { struct macho_file_map* fmap = &ifm->u.macho; struct fat_header fat_header; struct stat statbuf; int i; char* filename; unsigned len; struct section_info info; BOOL ret = FALSE; TRACE("(%s, %p)\n", debugstr_w(filenameW), fmap); reset_file_map(ifm); ifm->modtype = DMT_MACHO; #ifdef _WIN64 ifm->addr_size = 64; #else ifm->addr_size = 32; #endif len = WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, NULL, 0, NULL, NULL); if (!(filename = HeapAlloc(GetProcessHeap(), 0, len))) { WARN("failed to allocate filename buffer\n"); return FALSE; } WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, filename, len, NULL, NULL); /* check that the file exists */ if (stat(filename, &statbuf) == -1 || S_ISDIR(statbuf.st_mode)) { TRACE("stat() failed or %s is directory: %s\n", debugstr_a(filename), strerror(errno)); goto done; } /* Now open the file, so that we can mmap() it. */ if ((fmap->fd = open(filename, O_RDONLY)) == -1) { TRACE("failed to open file %s: %d\n", debugstr_a(filename), errno); goto done; } if (read(fmap->fd, &fat_header, sizeof(fat_header)) != sizeof(fat_header)) { TRACE("failed to read fat header: %d\n", errno); 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) == FAT_MAGIC) { int narch = swap_ulong_be_to_host(fat_header.nfat_arch); for (i = 0; i < narch; i++) { struct fat_arch fat_arch; if (read(fmap->fd, &fat_arch, sizeof(fat_arch)) != sizeof(fat_arch)) goto done; if (swap_ulong_be_to_host(fat_arch.cputype) == TARGET_CPU_TYPE) { 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_TYPE); } 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. */ lseek(fmap->fd, fmap->arch_offset, SEEK_SET); if (read(fmap->fd, &fmap->mach_header, sizeof(fmap->mach_header)) != sizeof(fmap->mach_header)) goto done; TRACE("... got possible Mach header\n"); /* and check for a Mach-O header */ if (fmap->mach_header.magic != TARGET_MH_MAGIC || fmap->mach_header.cputype != TARGET_CPU_TYPE) goto done; /* Make sure the file type is one of the ones we expect. */ switch (fmap->mach_header.filetype) { case MH_EXECUTE: case MH_DYLIB: case MH_DYLINKER: case MH_BUNDLE: case MH_DSYM: break; default: goto done; } TRACE("... verified Mach header\n"); fmap->num_sections = 0; if (macho_enum_load_commands(fmap, TARGET_SEGMENT_COMMAND, 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(fmap, TARGET_SEGMENT_COMMAND, 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", (unsigned long)fmap->segs_start, (unsigned long)fmap->segs_size); if (macho_enum_load_commands(fmap, 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/%d)\n", ifm, ifm->u.macho.fd); cursor = ifm; while (cursor) { struct image_file_map* next; if (ifm->u.macho.fd != -1) { 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); close(ifm->u.macho.fd); ifm->u.macho.fd = -1; } 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/%d, %u)\n", fmap, fmap->fd, 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 & SECTION_TYPE) && (fmap->sect[sectidx].section->flags & (S_ATTR_PURE_INSTRUCTIONS|S_ATTR_SOME_INSTRUCTIONS))); TRACE("-> %d\n", ret); return ret; } struct symtab_elt { struct hash_table_elt ht_elt; struct symt_compiland* compiland; unsigned long 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, unsigned long load_offset, const char* name, unsigned long 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/%d)\n", module, load_offset, debugstr_a(name), offset, is_public, is_global, sectidx, compiland, mdi, mdi->fmap, mdi->fmap->fd); /* 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 macho_file_map* fmap, const struct load_command* lc, void* user) { const struct symtab_command* sc = (const struct symtab_command*)lc; struct macho_debug_info* mdi = user; const macho_nlist* stab; const char* stabstr; int ret = 0; TRACE("(%p/%d, %p, %p) %u syms at 0x%08x, strings 0x%08x - 0x%08x\n", fmap, fmap->fd, lc, user, sc->nsyms, sc->symoff, sc->stroff, sc->stroff + sc->strsize); if (!macho_map_ranges(fmap, sc->symoff, sc->nsyms * sizeof(macho_nlist), 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 * sizeof(macho_nlist), stabstr, sc->strsize, macho_stabs_def_cb, mdi)) ret = -1; macho_unmap_ranges(fmap, sc->symoff, sc->nsyms * sizeof(macho_nlist), 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->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(const WCHAR* path, struct macho_file_map* fmap) { struct image_file_map dsym_ifm; if (macho_map_file(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. <path>.dSYM/Contents/Resources/DWARF/<basename of path>) * as produced by dsymutil. Next, look for a .dwarf file next to * the module file (e.g. <path>.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 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; if ((p = strrchrW(module->module.LoadedImageName, '/'))) p++; else p = 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(path, fmap)) goto found; strcpyW(path + strlenW(module->module.LoadedImageName), dot_dwarf); if (try_dsym(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(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(HANDLE process, unsigned long load_addr) { BOOL split_segs = FALSE; if (process && load_addr) { macho_mach_header header; if (ReadProcessMemory(process, (void*)load_addr, &header, sizeof(header), NULL) && header.magic == TARGET_MH_MAGIC && header.cputype == TARGET_CPU_TYPE && 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. */ BOOL macho_load_debug_info(struct module* module) { BOOL ret = FALSE; struct macho_debug_info mdi; int result; 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; } fmap = &module->format_info[DFI_MACHO]->u.macho_info->file_map.u.macho; TRACE("(%p, %p/%d)\n", module, fmap, fmap->fd); module->module.SymType = SymExport; if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY)) { find_and_map_dsym(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(fmap, 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(mdi.fmap, 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 */ BOOL macho_fetch_file_info(HANDLE process, const WCHAR* name, unsigned long 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(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.fd); 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); } /****************************************************************** * get_dyld_image_info_address */ static ULONG_PTR get_dyld_image_info_address(struct process* pcs) { NTSTATUS status; PROCESS_BASIC_INFORMATION pbi; ULONG_PTR dyld_image_info_address = 0; /* Get address of PEB */ status = NtQueryInformationProcess(pcs->handle, ProcessBasicInformation, &pbi, sizeof(pbi), NULL); if (status == STATUS_SUCCESS) { /* Read dyld image info address from PEB */ if (ReadProcessMemory(pcs->handle, &pbi.PebBaseAddress->Reserved[0], &dyld_image_info_address, sizeof(dyld_image_info_address), NULL)) { TRACE("got dyld_image_info_address 0x%08lx from PEB %p MacDyldImageInfo %p\n", (unsigned long)dyld_image_info_address, pbi.PebBaseAddress, &pbi.PebBaseAddress->Reserved); } } #ifndef __LP64__ /* No reading the symtab with nlist(3) in LP64 */ if (!dyld_image_info_address) { static void* dyld_all_image_infos_addr; /* Our next best guess is that dyld was loaded at its base address and we can find the dyld image infos address by looking up its symbol. */ if (!dyld_all_image_infos_addr) { struct nlist nl[2]; memset(nl, 0, sizeof(nl)); nl[0].n_un.n_name = (char*)"_dyld_all_image_infos"; if (!nlist("/usr/lib/dyld", nl)) dyld_all_image_infos_addr = (void*)nl[0].n_value; } if (dyld_all_image_infos_addr) { TRACE("got dyld_image_info_address %p from /usr/lib/dyld symbol table\n", dyld_all_image_infos_addr); dyld_image_info_address = (ULONG_PTR)dyld_all_image_infos_addr; } } #endif return dyld_image_info_address; } /****************************************************************** * 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, unsigned long 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->handle, load_addr); if (!macho_map_file(filename, split_segs, &fmap)) return FALSE; /* Find the dynamic loader's table of images loaded into the process. */ if (macho_info->flags & MACHO_INFO_DEBUG_HEADER) { macho_info->dbg_hdr_addr = (unsigned long)get_dyld_image_info_address(pcs); ret = TRUE; } 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.fd)); 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(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; } /****************************************************************** * macho_load_file_from_path * Tries to load a Mach-O file from a set of paths (separated by ':') */ static BOOL macho_load_file_from_path(struct process* pcs, const WCHAR* filename, unsigned long load_addr, const char* path, struct macho_info* macho_info) { BOOL ret = FALSE; WCHAR *s, *t, *fn; WCHAR* pathW = NULL; unsigned len; TRACE("(%p/%p, %s, 0x%08lx, %s, %p)\n", pcs, pcs->handle, debugstr_w(filename), load_addr, debugstr_a(path), macho_info); if (!path) return FALSE; len = MultiByteToWideChar(CP_UNIXCP, 0, path, -1, NULL, 0); pathW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR)); if (!pathW) return FALSE; MultiByteToWideChar(CP_UNIXCP, 0, path, -1, pathW, len); for (s = pathW; s && *s; s = (t) ? (t+1) : NULL) { t = strchrW(s, ':'); if (t) *t = '\0'; fn = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename) + 1 + lstrlenW(s) + 1) * sizeof(WCHAR)); if (!fn) break; strcpyW(fn, s); strcatW(fn, S_SlashW); strcatW(fn, filename); ret = macho_load_file(pcs, fn, load_addr, macho_info); HeapFree(GetProcessHeap(), 0, fn); if (ret) break; s = (t) ? (t+1) : NULL; } TRACE(" => %d\n", ret); HeapFree(GetProcessHeap(), 0, pathW); return ret; } /****************************************************************** * macho_load_file_from_dll_path * * Tries to load a Mach-O file from the dll path */ static BOOL macho_load_file_from_dll_path(struct process* pcs, const WCHAR* filename, unsigned long load_addr, struct macho_info* macho_info) { BOOL ret = FALSE; unsigned int index = 0; const char *path; TRACE("(%p/%p, %s, 0x%08lx, %p)\n", pcs, pcs->handle, debugstr_w(filename), load_addr, macho_info); while (!ret && (path = wine_dll_enum_load_path( index++ ))) { WCHAR *name; unsigned len; len = MultiByteToWideChar(CP_UNIXCP, 0, path, -1, NULL, 0); name = HeapAlloc( GetProcessHeap(), 0, (len + lstrlenW(filename) + 2) * sizeof(WCHAR) ); if (!name) break; MultiByteToWideChar(CP_UNIXCP, 0, path, -1, name, len); strcatW( name, S_SlashW ); strcatW( name, filename ); ret = macho_load_file(pcs, name, load_addr, macho_info); HeapFree( GetProcessHeap(), 0, name ); } TRACE(" => %d\n", ret); return ret; } /****************************************************************** * 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, unsigned long 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; 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 */ /* If has no directories, try PATH first. */ if (!strchrW(filename, '/')) { ret = macho_load_file_from_path(pcs, filename, load_addr, getenv("PATH"), macho_info); } /* Try DYLD_LIBRARY_PATH, with just the filename (no directories). */ if (!ret) { if ((p = strrchrW(filename, '/'))) p++; else p = filename; ret = macho_load_file_from_path(pcs, p, load_addr, getenv("DYLD_LIBRARY_PATH"), macho_info); } /* 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 = macho_load_file_from_path(pcs, p, load_addr, fallback, macho_info); } if (!ret && !strchrW(filename, '/')) ret = macho_load_file_from_dll_path(pcs, filename, load_addr, macho_info); 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) { struct dyld_all_image_infos image_infos; struct dyld_image_info* info_array = NULL; unsigned long 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->dbg_hdr_addr || !ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr, &image_infos, sizeof(image_infos), NULL) || !image_infos.infoArray) goto done; TRACE("Process has %u image infos at %p\n", image_infos.infoArrayCount, image_infos.infoArray); len = image_infos.infoArrayCount * sizeof(info_array[0]); info_array = HeapAlloc(GetProcessHeap(), 0, len); if (!info_array || !ReadProcessMemory(pcs->handle, image_infos.infoArray, info_array, len, NULL)) goto done; TRACE("... read image infos\n"); for (i = 0; i < image_infos.infoArrayCount; i++) { if (info_array[i].imageFilePath != NULL && ReadProcessMemory(pcs->handle, info_array[i].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, sizeof(bufstrW) / sizeof(WCHAR)); if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name); if (!cb(bufstrW, (unsigned long)info_array[i].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, unsigned long 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 */ 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_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; ULONG_PTR dyld_image_info_address; struct dyld_all_image_infos image_infos; struct dyld_image_info image_info; uint32_t len; char path[PATH_MAX]; BOOL got_path = FALSE; dyld_image_info_address = get_dyld_image_info_address(pcs); if (dyld_image_info_address && ReadProcessMemory(pcs->handle, (void*)dyld_image_info_address, &image_infos, sizeof(image_infos), NULL) && image_infos.infoArray && image_infos.infoArrayCount && ReadProcessMemory(pcs->handle, image_infos.infoArray, &image_info, sizeof(image_info), NULL) && image_info.imageFilePath) { for (len = sizeof(path); len > 0; len /= 2) { if (ReadProcessMemory(pcs->handle, image_info.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 we couldn't get the executable path from the target process, try our own. It will almost always be the same. */ if (!got_path) { len = sizeof(path); if (!_NSGetExecutablePath(path, &len)) { got_path = TRUE; TRACE("using own executable path: %s\n", debugstr_a(path)); } } 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) ret = macho_search_and_load_file(pcs, get_wine_loader_name(), 0, macho_info); return ret; } /****************************************************************** * 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) { struct macho_info macho_info; TRACE("(%p/%p)\n", pcs, pcs->handle); macho_info.flags = MACHO_INFO_DEBUG_HEADER | 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); return (pcs->dbg_hdr_addr = macho_info.dbg_hdr_addr) != 0; } /****************************************************************** * 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. */ BOOL macho_enum_modules(HANDLE hProc, enum_modules_cb cb, void* user) { struct process pcs; struct macho_info macho_info; BOOL ret; TRACE("(%p, %p, %p)\n", hProc, cb, user); memset(&pcs, 0, sizeof(pcs)); pcs.handle = hProc; macho_info.flags = MACHO_INFO_DEBUG_HEADER | MACHO_INFO_NAME; if (!macho_search_loader(&pcs, &macho_info)) return FALSE; pcs.dbg_hdr_addr = macho_info.dbg_hdr_addr; ret = macho_enum_modules_internal(&pcs, 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, unsigned long 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 = strrchrW(name, '/'); if (!p++) p = 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. */ struct module* macho_load_module(struct process* pcs, const WCHAR* name, unsigned long 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 = strrchrW(name, '/'); if (!ml.name++) ml.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; } #else /* HAVE_MACH_O_LOADER_H */ BOOL macho_find_section(struct image_file_map* ifm, const char* segname, const char* sectname, struct image_section_map* ism) { return FALSE; } const char* macho_map_section(struct image_section_map* ism) { return NULL; } void macho_unmap_section(struct image_section_map* ism) { } DWORD_PTR macho_get_map_rva(const struct image_section_map* ism) { return 0; } unsigned macho_get_map_size(const struct image_section_map* ism) { return 0; } BOOL macho_synchronize_module_list(struct process* pcs) { return FALSE; } BOOL macho_fetch_file_info(HANDLE process, const WCHAR* name, unsigned long load_addr, DWORD_PTR* base, DWORD* size, DWORD* checksum) { return FALSE; } BOOL macho_read_wine_loader_dbg_info(struct process* pcs) { return FALSE; } BOOL macho_enum_modules(HANDLE hProc, enum_modules_cb cb, void* user) { return FALSE; } struct module* macho_load_module(struct process* pcs, const WCHAR* name, unsigned long addr) { return NULL; } BOOL macho_load_debug_info(struct module* module) { return FALSE; } #endif /* HAVE_MACH_O_LOADER_H */