2 * File macho_module.c - processing of Mach-O files
3 * Originally based on elf_module.c
5 * Copyright (C) 1996, Eric Youngdale.
6 * 1999-2007 Eric Pouech
7 * 2009 Ken Thomases, CodeWeavers Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25 #include "wine/port.h"
27 #include "dbghelp_private.h"
33 #ifdef HAVE_SYS_STAT_H
34 # include <sys/stat.h>
36 #ifdef HAVE_SYS_MMAN_H
37 # include <sys/mman.h>
40 #include <mach-o/fat.h>
41 #include <mach-o/loader.h>
42 #include <mach-o/nlist.h>
44 #ifdef HAVE_MACH_O_DYLD_IMAGES_H
45 #include <mach-o/dyld_images.h>
47 struct dyld_image_info {
48 const struct mach_header *imageLoadAddress;
49 const char *imageFilePath;
50 uintptr_t imageFileModDate;
53 struct dyld_all_image_infos {
55 uint32_t infoArrayCount;
56 const struct dyld_image_info *infoArray;
58 int processDetachedFromSharedRegion;
63 #include "wine/library.h"
64 #include "wine/debug.h"
66 #ifdef WORDS_BIGENDIAN
67 #define swap_ulong_be_to_host(n) (n)
69 #define swap_ulong_be_to_host(n) (RtlUlongByteSwap(n))
72 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp_macho);
75 struct macho_module_info
77 unsigned long load_addr;
78 unsigned short in_use : 1,
82 #define MACHO_INFO_DEBUG_HEADER 0x0001
83 #define MACHO_INFO_MODULE 0x0002
84 #define MACHO_INFO_NAME 0x0004
88 unsigned flags; /* IN one (or several) of the MACHO_INFO constants */
89 unsigned long dbg_hdr_addr; /* OUT address of debug header (if MACHO_INFO_DEBUG_HEADER is set) */
90 struct module* module; /* OUT loaded module (if MACHO_INFO_MODULE is set) */
91 const WCHAR* module_name; /* OUT found module name (if MACHO_INFO_NAME is set) */
94 /* structure holding information while handling a Mach-O image */
95 #define BITS_PER_ULONG (sizeof(ULONG) * 8)
96 #define ULONGS_FOR_BITS(nbits) (((nbits) + BITS_PER_ULONG - 1) / BITS_PER_ULONG)
99 /* A copy of the Mach-O header for an individual architecture. */
100 struct mach_header mach_header;
102 /* The mapped load commands. */
103 const struct load_command* load_commands;
105 /* The portion of the file which is this architecture. mach_header was
106 * read from arch_offset. */
107 unsigned arch_offset;
110 /* The range of address space covered by all segments. */
114 /* Map of which sections contain code. Sections are accessed using 1-based
115 * index. Bit 0 of this bitset indicates if the bitset has been initialized. */
116 RTL_BITMAP sect_is_code;
117 ULONG sect_is_code_buff[ULONGS_FOR_BITS(MAX_SECT + 1)];
123 static void macho_unmap_file(struct macho_file_map* fmap);
125 /******************************************************************
128 * For a range (offset & length) of a single architecture within
129 * a Mach-O file, calculate the page-aligned range of the whole file
130 * that encompasses it. For a fat binary, the architecture will
131 * itself be offset within the file, so take that into account.
133 static void macho_calc_range(const struct macho_file_map* fmap, unsigned offset,
134 unsigned len, unsigned* out_aligned_offset,
135 unsigned* out_aligned_end, unsigned* out_aligned_len,
136 unsigned* out_misalign)
138 unsigned pagemask = getpagesize() - 1;
139 unsigned file_offset, misalign;
141 file_offset = fmap->arch_offset + offset;
142 misalign = file_offset & pagemask;
143 *out_aligned_offset = file_offset - misalign;
144 *out_aligned_end = (file_offset + len + pagemask) & ~pagemask;
146 *out_aligned_len = *out_aligned_end - *out_aligned_offset;
148 *out_misalign = misalign;
151 /******************************************************************
154 * Maps a range (offset, length in bytes) from a Mach-O file into memory
156 static const char* macho_map_range(const struct macho_file_map* fmap, unsigned offset, unsigned len)
158 unsigned misalign, aligned_offset, aligned_map_end, map_size;
159 const void* aligned_ptr;
161 TRACE("(%p/%d, 0x%08x, 0x%08x)\n", fmap, fmap->fd, offset, len);
163 macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end,
164 &map_size, &misalign);
166 aligned_ptr = mmap(NULL, map_size, PROT_READ, MAP_PRIVATE, fmap->fd, aligned_offset);
168 TRACE("Mapped (0x%08x - 0x%08x) to %p\n", aligned_offset, aligned_map_end, aligned_ptr);
170 if (aligned_ptr == MAP_FAILED) return MACHO_NO_MAP;
171 return (const char*)aligned_ptr + misalign;
174 /******************************************************************
177 * Unmaps a range (offset, length in bytes) of a Mach-O file from memory
179 static void macho_unmap_range(const void** mapped, const struct macho_file_map* fmap,
180 unsigned offset, unsigned len)
182 TRACE("(%p, %p/%d, 0x%08x, 0x%08x)\n", mapped, fmap, fmap->fd, offset, len);
184 if (mapped && *mapped != MACHO_NO_MAP)
186 unsigned misalign, aligned_offset, aligned_map_end, map_size;
189 macho_calc_range(fmap, offset, len, &aligned_offset, &aligned_map_end,
190 &map_size, &misalign);
192 aligned_ptr = (char*)*mapped - misalign;
193 if (munmap(aligned_ptr, map_size) < 0)
194 WARN("Couldn't unmap the range\n");
195 TRACE("Unmapped (0x%08x - 0x%08x) from %p - %p\n", aligned_offset, aligned_map_end, aligned_ptr, (char*)aligned_ptr + map_size);
196 *mapped = MACHO_NO_MAP;
200 /******************************************************************
203 * Maps two ranges (offset, length in bytes) from a Mach-O file
204 * into memory. If the two ranges overlap, use one mmap so that
205 * the munmap doesn't fragment the mapping.
207 static BOOL macho_map_ranges(const struct macho_file_map* fmap,
208 unsigned offset1, unsigned len1,
209 unsigned offset2, unsigned len2,
210 const void** mapped1, const void** mapped2)
212 unsigned aligned_offset1, aligned_map_end1;
213 unsigned aligned_offset2, aligned_map_end2;
215 TRACE("(%p/%d, 0x%08x, 0x%08x, 0x%08x, 0x%08x, %p, %p)\n", fmap, fmap->fd,
216 offset1, len1, offset2, len2, mapped1, mapped2);
218 macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL, NULL);
219 macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL, NULL);
221 if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1)
223 *mapped1 = macho_map_range(fmap, offset1, len1);
224 if (*mapped1 != MACHO_NO_MAP)
226 *mapped2 = macho_map_range(fmap, offset2, len2);
227 if (*mapped2 == MACHO_NO_MAP)
228 macho_unmap_range(mapped1, fmap, offset1, len1);
233 if (offset1 < offset2)
235 *mapped1 = macho_map_range(fmap, offset1, offset2 + len2 - offset1);
236 if (*mapped1 != MACHO_NO_MAP)
237 *mapped2 = (const char*)*mapped1 + offset2 - offset1;
241 *mapped2 = macho_map_range(fmap, offset2, offset1 + len1 - offset2);
242 if (*mapped2 != MACHO_NO_MAP)
243 *mapped1 = (const char*)*mapped2 + offset1 - offset2;
247 TRACE(" => %p, %p\n", *mapped1, *mapped2);
249 return (*mapped1 != MACHO_NO_MAP) && (*mapped2 != MACHO_NO_MAP);
252 /******************************************************************
255 * Unmaps two ranges (offset, length in bytes) of a Mach-O file
256 * from memory. Use for ranges which were mapped by
259 static void macho_unmap_ranges(const struct macho_file_map* fmap,
260 unsigned offset1, unsigned len1,
261 unsigned offset2, unsigned len2,
262 const void** mapped1, const void** mapped2)
264 unsigned aligned_offset1, aligned_map_end1;
265 unsigned aligned_offset2, aligned_map_end2;
267 TRACE("(%p/%d, 0x%08x, 0x%08x, 0x%08x, 0x%08x, %p/%p, %p/%p)\n", fmap, fmap->fd,
268 offset1, len1, offset2, len2, mapped1, *mapped1, mapped2, *mapped2);
270 macho_calc_range(fmap, offset1, len1, &aligned_offset1, &aligned_map_end1, NULL, NULL);
271 macho_calc_range(fmap, offset2, len2, &aligned_offset2, &aligned_map_end2, NULL, NULL);
273 if (aligned_map_end1 < aligned_offset2 || aligned_map_end2 < aligned_offset1)
275 macho_unmap_range(mapped1, fmap, offset1, len1);
276 macho_unmap_range(mapped2, fmap, offset2, len2);
280 if (offset1 < offset2)
282 macho_unmap_range(mapped1, fmap, offset1, offset2 + len2 - offset1);
283 *mapped2 = MACHO_NO_MAP;
287 macho_unmap_range(mapped2, fmap, offset2, offset1 + len1 - offset2);
288 *mapped1 = MACHO_NO_MAP;
293 /******************************************************************
294 * macho_map_load_commands
296 * Maps the load commands from a Mach-O file into memory
298 static const struct load_command* macho_map_load_commands(struct macho_file_map* fmap)
300 if (fmap->load_commands == MACHO_NO_MAP)
302 fmap->load_commands = (const struct load_command*) macho_map_range(
303 fmap, sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds);
304 TRACE("Mapped load commands: %p\n", fmap->load_commands);
307 return fmap->load_commands;
310 /******************************************************************
311 * macho_unmap_load_commands
313 * Unmaps the load commands of a Mach-O file from memory
315 static void macho_unmap_load_commands(struct macho_file_map* fmap)
317 if (fmap->load_commands != MACHO_NO_MAP)
319 TRACE("Unmapping load commands: %p\n", fmap->load_commands);
320 macho_unmap_range((const void**)&fmap->load_commands, fmap,
321 sizeof(fmap->mach_header), fmap->mach_header.sizeofcmds);
325 /******************************************************************
326 * macho_next_load_command
328 * Advance to the next load command
330 static const struct load_command* macho_next_load_command(const struct load_command* lc)
332 return (const struct load_command*)((const char*)lc + lc->cmdsize);
335 /******************************************************************
336 * macho_enum_load_commands
338 * Enumerates the load commands for a Mach-O file, selecting by
339 * the command type, calling a callback for each. If the callback
340 * returns <0, that indicates an error. If it returns >0, that means
341 * it's not interested in getting any more load commands.
342 * If this function returns <0, that's an error produced by the
343 * callback. If >=0, that's the count of load commands successfully
346 static int macho_enum_load_commands(struct macho_file_map* fmap, unsigned cmd,
347 int (*cb)(struct macho_file_map*, const struct load_command*, void*),
350 const struct load_command* lc;
354 TRACE("(%p/%d, %u, %p, %p)\n", fmap, fmap->fd, cmd, cb, user);
356 if ((lc = macho_map_load_commands(fmap)) == MACHO_NO_MAP) return -1;
358 TRACE("%d total commands\n", fmap->mach_header.ncmds);
360 for (i = 0; i < fmap->mach_header.ncmds; i++, lc = macho_next_load_command(lc))
364 if (cmd && cmd != lc->cmd) continue;
367 result = cb(fmap, lc, user);
368 TRACE("load_command[%d] (%p), cmd %u; callback => %d\n", i, lc, lc->cmd, result);
369 if (result) return (result < 0) ? result : count;
375 /******************************************************************
376 * macho_accum_segs_range
378 * Callback for macho_enum_load_commands. Accumulates the address
379 * range covered by the segments of a Mach-O file. All commands
380 * are expected to be of LC_SEGMENT type.
382 static int macho_accum_segs_range(struct macho_file_map* fmap,
383 const struct load_command* lc, void* user)
385 const struct segment_command* sc = (const struct segment_command*)lc;
386 unsigned tmp, page_mask = getpagesize() - 1;
388 TRACE("(%p/%d, %p, %p) before: 0x%08x - 0x%08x\n", fmap, fmap->fd, lc, user,
389 (unsigned)fmap->segs_start, (unsigned)fmap->segs_size);
390 TRACE("Segment command vm: 0x%08x - 0x%08x\n", (unsigned)sc->vmaddr,
391 (unsigned)sc->vmaddr + sc->vmsize);
393 if (!strncmp(sc->segname, "WINE_", 5))
395 TRACE("Ignoring special Wine segment %s\n", debugstr_an(sc->segname, sizeof(sc->segname)));
399 /* If this segment starts before previously-known earliest, record
401 if (sc->vmaddr < fmap->segs_start)
402 fmap->segs_start = sc->vmaddr;
404 /* If this segment extends beyond previously-known furthest, record
406 tmp = (sc->vmaddr + sc->vmsize + page_mask) & ~page_mask;
407 if (fmap->segs_size < tmp) fmap->segs_size = tmp;
409 TRACE("after: 0x%08x - 0x%08x\n", (unsigned)fmap->segs_start, (unsigned)fmap->segs_size);
414 /******************************************************************
417 * Maps a Mach-O file into memory (and checks it's a real Mach-O file)
419 static BOOL macho_map_file(const WCHAR* filenameW, struct macho_file_map* fmap)
421 struct fat_header fat_header;
428 TRACE("(%s, %p)\n", debugstr_w(filenameW), fmap);
431 fmap->load_commands = MACHO_NO_MAP;
432 RtlInitializeBitMap(&fmap->sect_is_code, fmap->sect_is_code_buff, MAX_SECT + 1);
434 len = WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, NULL, 0, NULL, NULL);
435 if (!(filename = HeapAlloc(GetProcessHeap(), 0, len))) return FALSE;
436 WideCharToMultiByte(CP_UNIXCP, 0, filenameW, -1, filename, len, NULL, NULL);
438 /* check that the file exists */
439 if (stat(filename, &statbuf) == -1 || S_ISDIR(statbuf.st_mode)) goto done;
441 /* Now open the file, so that we can mmap() it. */
442 if ((fmap->fd = open(filename, O_RDONLY)) == -1) goto done;
444 if (read(fmap->fd, &fat_header, sizeof(fat_header)) != sizeof(fat_header))
446 TRACE("... got possible fat header\n");
448 /* Fat header is always in big-endian order. */
449 if (swap_ulong_be_to_host(fat_header.magic) == FAT_MAGIC)
451 int narch = swap_ulong_be_to_host(fat_header.nfat_arch);
452 for (i = 0; i < narch; i++)
454 struct fat_arch fat_arch;
455 if (read(fmap->fd, &fat_arch, sizeof(fat_arch)) != sizeof(fat_arch))
457 if (swap_ulong_be_to_host(fat_arch.cputype) == CPU_TYPE_X86)
459 fmap->arch_offset = swap_ulong_be_to_host(fat_arch.offset);
460 fmap->arch_size = swap_ulong_be_to_host(fat_arch.size);
464 if (i >= narch) goto done;
465 TRACE("... found x86 arch\n");
469 fmap->arch_offset = 0;
470 fmap->arch_size = statbuf.st_size;
471 TRACE("... not a fat header\n");
474 /* Individual architecture (standalone or within a fat file) is in its native byte order. */
475 lseek(fmap->fd, fmap->arch_offset, SEEK_SET);
476 if (read(fmap->fd, &fmap->mach_header, sizeof(fmap->mach_header)) != sizeof(fmap->mach_header))
478 TRACE("... got possible Mach header\n");
479 /* and check for a Mach-O header */
480 if (fmap->mach_header.magic != MH_MAGIC ||
481 fmap->mach_header.cputype != CPU_TYPE_X86) goto done;
482 /* Make sure the file type is one of the ones we expect. */
483 switch (fmap->mach_header.filetype)
493 TRACE("... verified Mach x86 header\n");
496 fmap->segs_start = ~0L;
498 if (macho_enum_load_commands(fmap, LC_SEGMENT, macho_accum_segs_range, NULL) < 0)
501 fmap->segs_size -= fmap->segs_start;
502 TRACE("segs_start: 0x%08x, segs_size: 0x%08x\n", (unsigned)fmap->segs_start,
503 (unsigned)fmap->segs_size);
508 macho_unmap_file(fmap);
509 HeapFree(GetProcessHeap(), 0, filename);
513 /******************************************************************
516 * Unmaps a Mach-O file from memory (previously mapped with macho_map_file)
518 static void macho_unmap_file(struct macho_file_map* fmap)
520 TRACE("(%p/%d)\n", fmap, fmap->fd);
523 macho_unmap_load_commands(fmap);
529 /******************************************************************
530 * macho_fill_sect_is_code
532 * Callback for macho_enum_load_commands. Determines which segments
533 * of a Mach-O file contain code. All commands are expected to be
534 * of LC_SEGMENT type.
536 static int macho_fill_sect_is_code(struct macho_file_map* fmap,
537 const struct load_command* lc, void* user)
539 const struct segment_command* sc = (const struct segment_command*)lc;
540 const struct section* sections;
544 TRACE("(%p/%d, %p, %p/%d) scanning %u sections\n", fmap, fmap->fd, lc,
545 cursect, *cursect, sc->nsects);
547 sections = (const struct section*)(sc + 1);
548 for (i = 0; i < sc->nsects; i++)
550 if (*cursect > MAX_SECT) return -1;
553 if (!(sections[i].flags & SECTION_TYPE) &&
554 (sections[i].flags & (S_ATTR_PURE_INSTRUCTIONS|S_ATTR_SOME_INSTRUCTIONS)))
555 RtlSetBits(&fmap->sect_is_code, *cursect, 1);
557 RtlClearBits(&fmap->sect_is_code, *cursect, 1);
558 TRACE("Section %d (%d of this segment) is%s code\n", *cursect, i,
559 (RtlAreBitsSet(&fmap->sect_is_code, *cursect, 1) ? "" : " not"));
565 /******************************************************************
568 * Checks if a section, identified by sectidx which is a 1-based
569 * index into the sections of all segments, in order of load
570 * commands, contains code.
572 static BOOL macho_sect_is_code(struct macho_file_map* fmap, unsigned char sectidx)
574 TRACE("(%p/%d, %u)\n", fmap, fmap->fd, sectidx);
576 if (!RtlAreBitsSet(&fmap->sect_is_code, 0, 1))
579 if (macho_enum_load_commands(fmap, LC_SEGMENT, macho_fill_sect_is_code, &cursect) < 0)
580 WARN("Couldn't load sect_is_code map\n");
581 RtlSetBits(&fmap->sect_is_code, 0, 1);
584 return RtlAreBitsSet(&fmap->sect_is_code, sectidx, 1);
589 struct hash_table_elt ht_elt;
590 struct symt_compiland* compiland;
592 unsigned char is_code:1,
598 struct macho_debug_info
600 struct macho_file_map* fmap;
601 struct module* module;
603 struct hash_table ht_symtab;
606 /******************************************************************
609 * Callback for stabs_parse. Collect symbol definitions.
611 static void macho_stabs_def_cb(struct module* module, unsigned long load_offset,
612 const char* name, unsigned long offset,
613 BOOL is_public, BOOL is_global, unsigned char sectidx,
614 struct symt_compiland* compiland, void* user)
616 struct macho_debug_info* mdi = user;
617 struct symtab_elt* ste;
619 TRACE("(%p, 0x%08lx, %s, 0x%08lx, %d, %d, %u, %p, %p/%p/%d)\n", module, load_offset,
620 debugstr_a(name), offset, is_public, is_global, sectidx,
621 compiland, mdi, mdi->fmap, mdi->fmap->fd);
623 /* Defer the creation of new non-debugging symbols until after we've
624 * finished parsing the stabs. */
625 ste = pool_alloc(&mdi->pool, sizeof(*ste));
626 ste->ht_elt.name = pool_strdup(&mdi->pool, name);
627 ste->compiland = compiland;
628 ste->addr = load_offset + offset;
629 ste->is_code = !!macho_sect_is_code(mdi->fmap, sectidx);
630 ste->is_public = !!is_public;
631 ste->is_global = !!is_global;
633 hash_table_add(&mdi->ht_symtab, &ste->ht_elt);
636 /******************************************************************
639 * Callback for macho_enum_load_commands. Processes the LC_SYMTAB
640 * load commands from the Mach-O file.
642 static int macho_parse_symtab(struct macho_file_map* fmap,
643 const struct load_command* lc, void* user)
645 const struct symtab_command* sc = (const struct symtab_command*)lc;
646 struct macho_debug_info* mdi = user;
647 const struct nlist* stab;
651 TRACE("(%p/%d, %p, %p) %u syms at 0x%08x, strings 0x%08x - 0x%08x\n", fmap, fmap->fd, lc,
652 user, sc->nsyms, sc->symoff, sc->stroff, sc->stroff + sc->strsize);
654 if (!macho_map_ranges(fmap, sc->symoff, sc->nsyms * sizeof(struct nlist),
655 sc->stroff, sc->strsize, (const void**)&stab, (const void**)&stabstr))
658 if (!stabs_parse(mdi->module, mdi->module->macho_info->load_addr - fmap->segs_start,
659 stab, sc->nsyms * sizeof(struct nlist),
660 stabstr, sc->strsize, macho_stabs_def_cb, mdi))
663 macho_unmap_ranges(fmap, sc->symoff, sc->nsyms * sizeof(struct nlist),
664 sc->stroff, sc->strsize, (const void**)&stab, (const void**)&stabstr);
669 /******************************************************************
672 * Integrate the non-debugging symbols we've gathered into the
673 * symbols that were generated during stabs parsing.
675 static void macho_finish_stabs(struct module* module, struct hash_table* ht_symtab)
677 struct hash_table_iter hti_ours;
678 struct symtab_elt* ste;
679 BOOL adjusted = FALSE;
681 TRACE("(%p, %p)\n", module, ht_symtab);
683 /* For each of our non-debugging symbols, see if it can provide some
684 * missing details to one of the module's known symbols. */
685 hash_table_iter_init(ht_symtab, &hti_ours, NULL);
686 while ((ste = hash_table_iter_up(&hti_ours)))
688 struct hash_table_iter hti_modules;
691 struct symt_function* func;
692 struct symt_data* data;
694 hash_table_iter_init(&module->ht_symbols, &hti_modules, ste->ht_elt.name);
695 while ((ptr = hash_table_iter_up(&hti_modules)))
697 sym = GET_ENTRY(ptr, struct symt_ht, hash_elt);
699 if (strcmp(sym->hash_elt.name, ste->ht_elt.name))
702 switch (sym->symt.tag)
705 func = (struct symt_function*)sym;
706 if (func->address == module->macho_info->load_addr)
708 TRACE("Adjusting function %p/%s!%s from 0x%08lx to 0x%08lx\n", func,
709 debugstr_w(module->module.ModuleName), sym->hash_elt.name,
710 func->address, ste->addr);
711 func->address = ste->addr;
714 if (func->address == ste->addr)
718 data = (struct symt_data*)sym;
722 case DataIsFileStatic:
723 if (data->u.var.offset == module->macho_info->load_addr)
725 TRACE("Adjusting data symbol %p/%s!%s from 0x%08lx to 0x%08lx\n",
726 data, debugstr_w(module->module.ModuleName), sym->hash_elt.name,
727 data->u.var.offset, ste->addr);
728 data->u.var.offset = ste->addr;
731 if (data->u.var.offset == ste->addr)
733 enum DataKind new_kind;
735 new_kind = ste->is_global ? DataIsGlobal : DataIsFileStatic;
736 if (data->kind != new_kind)
738 WARN("Changing kind for %p/%s!%s from %d to %d\n", sym,
739 debugstr_w(module->module.ModuleName), sym->hash_elt.name,
740 (int)data->kind, (int)new_kind);
741 data->kind = new_kind;
751 TRACE("Ignoring tag %u\n", sym->symt.tag);
759 /* since we may have changed some addresses, mark the module to be resorted */
760 module->sortlist_valid = FALSE;
763 /* Mark any of our non-debugging symbols which fall on an already-used
764 * address as "used". This allows us to skip them in the next loop,
765 * below. We do this in separate loops because symt_new_* marks the
766 * list as needing sorting and symt_find_nearest sorts if needed,
767 * causing thrashing. */
768 if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY))
770 hash_table_iter_init(ht_symtab, &hti_ours, NULL);
771 while ((ste = hash_table_iter_up(&hti_ours)))
776 if (ste->used) continue;
778 sym = symt_find_nearest(module, ste->addr);
780 symt_get_info(&sym->symt, TI_GET_ADDRESS, &addr);
781 if (sym && ste->addr == addr)
788 /* If neither symbol has a correct size (ours never does), we
789 * consider them both to be markers. No warning is needed in
791 * Also, we check that we don't have two symbols, one local, the other
792 * global, which is legal.
794 symt_get_info(&sym->symt, TI_GET_LENGTH, &size);
795 symt_get_info(&sym->symt, TI_GET_DATAKIND, &kind);
796 if (size && kind == (ste->is_global ? DataIsGlobal : DataIsFileStatic))
797 FIXME("Duplicate in %s: %s<%08lx> %s<%s-%s>\n",
798 debugstr_w(module->module.ModuleName),
799 ste->ht_elt.name, ste->addr,
801 wine_dbgstr_longlong(addr), wine_dbgstr_longlong(size));
806 /* For any of our remaining non-debugging symbols which have no match
807 * among the module's known symbols, add them as new symbols. */
808 hash_table_iter_init(ht_symtab, &hti_ours, NULL);
809 while ((ste = hash_table_iter_up(&hti_ours)))
811 if (!(dbghelp_options & SYMOPT_PUBLICS_ONLY) && !ste->used)
815 symt_new_function(module, ste->compiland, ste->ht_elt.name,
820 symt_new_global_variable(module, ste->compiland, ste->ht_elt.name,
821 !ste->is_global, ste->addr, 0, NULL);
827 if (ste->is_public && !(dbghelp_options & SYMOPT_NO_PUBLICS))
829 symt_new_public(module, ste->compiland, ste->ht_elt.name,
830 ste->addr, 0, ste->is_code, ste->is_code);
835 /******************************************************************
836 * macho_load_debug_info_from_map
838 * Loads the symbolic information from a Mach-O module.
840 * FALSE if the file doesn't contain symbolic info (or this info
841 * cannot be read or parsed)
844 static BOOL macho_load_debug_info_from_map(struct module* module,
845 struct macho_file_map* fmap)
848 struct macho_debug_info mdi;
851 TRACE("(%p, %p/%d)\n", module, fmap, fmap->fd);
853 module->module.SymType = SymExport;
857 pool_init(&mdi.pool, 65536);
858 hash_table_init(&mdi.pool, &mdi.ht_symtab, 256);
859 result = macho_enum_load_commands(fmap, LC_SYMTAB, macho_parse_symtab, &mdi);
863 WARN("Couldn't correctly read stabs\n");
865 macho_finish_stabs(module, &mdi.ht_symtab);
867 pool_destroy(&mdi.pool);
871 /******************************************************************
872 * macho_load_debug_info
874 * Loads Mach-O debugging information from the module image file.
876 BOOL macho_load_debug_info(struct module* module, struct macho_file_map* fmap)
879 struct macho_file_map my_fmap;
881 TRACE("(%p, %p/%d)\n", module, fmap, fmap ? fmap->fd : -1);
883 if (module->type != DMT_MACHO || !module->macho_info)
885 ERR("Bad Mach-O module '%s'\n", debugstr_w(module->module.LoadedImageName));
892 ret = macho_map_file(module->module.LoadedImageName, fmap);
895 ret = macho_load_debug_info_from_map(module, fmap);
897 if (fmap == &my_fmap) macho_unmap_file(fmap);
901 /******************************************************************
902 * macho_fetch_file_info
904 * Gathers some more information for a Mach-O module from a given file
906 BOOL macho_fetch_file_info(const WCHAR* name, DWORD* base,
907 DWORD* size, DWORD* checksum)
909 struct macho_file_map fmap;
911 TRACE("(%s, %p, %p, %p)\n", debugstr_w(name), base, size, checksum);
913 if (!macho_map_file(name, &fmap)) return FALSE;
914 if (base) *base = fmap.segs_start;
915 *size = fmap.segs_size;
916 *checksum = calc_crc32(fmap.fd);
917 macho_unmap_file(&fmap);
921 /******************************************************************
924 * Loads the information for Mach-O module stored in 'filename'.
925 * The module has been loaded at 'load_addr' address.
927 * FALSE if the file cannot be found/opened or if the file doesn't
928 * contain symbolic info (or this info cannot be read or parsed)
931 static BOOL macho_load_file(struct process* pcs, const WCHAR* filename,
932 unsigned long load_addr, struct macho_info* macho_info)
935 struct macho_file_map fmap;
937 TRACE("(%p/%p, %s, 0x%08lx, %p/0x%08x)\n", pcs, pcs->handle, debugstr_w(filename),
938 load_addr, macho_info, macho_info->flags);
940 if (!macho_map_file(filename, &fmap)) return FALSE;
942 /* Find the dynamic loader's table of images loaded into the process.
944 if (macho_info->flags & MACHO_INFO_DEBUG_HEADER)
946 static void* dyld_all_image_infos_addr;
948 /* This symbol should be in the same place in all processes. */
949 if (!dyld_all_image_infos_addr)
952 memset(nl, 0, sizeof(nl));
953 nl[0].n_un.n_name = (char*)"_dyld_all_image_infos";
954 if (!nlist("/usr/lib/dyld", nl))
955 dyld_all_image_infos_addr = (void*)nl[0].n_value;
958 if (dyld_all_image_infos_addr)
959 macho_info->dbg_hdr_addr = (unsigned long)dyld_all_image_infos_addr;
962 TRACE("dbg_hdr_addr = 0x%08lx\n", macho_info->dbg_hdr_addr);
965 if (macho_info->flags & MACHO_INFO_MODULE)
967 struct macho_module_info *macho_module_info =
968 HeapAlloc(GetProcessHeap(), 0, sizeof(struct macho_module_info));
969 if (!macho_module_info) goto leave;
970 macho_info->module = module_new(pcs, filename, DMT_MACHO, FALSE, load_addr,
971 fmap.segs_size, 0, calc_crc32(fmap.fd));
972 if (!macho_info->module)
974 HeapFree(GetProcessHeap(), 0, macho_module_info);
977 macho_info->module->macho_info = macho_module_info;
978 macho_info->module->macho_info->load_addr = load_addr;
980 if (dbghelp_options & SYMOPT_DEFERRED_LOADS)
981 macho_info->module->module.SymType = SymDeferred;
982 else if (!macho_load_debug_info(macho_info->module, &fmap))
985 macho_info->module->macho_info->in_use = 1;
986 macho_info->module->macho_info->is_loader = 0;
987 TRACE("module = %p\n", macho_info->module);
990 if (macho_info->flags & MACHO_INFO_NAME)
993 ptr = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename) + 1) * sizeof(WCHAR));
996 strcpyW(ptr, filename);
997 macho_info->module_name = ptr;
1000 TRACE("module_name = %p %s\n", macho_info->module_name, debugstr_w(macho_info->module_name));
1003 macho_unmap_file(&fmap);
1005 TRACE(" => %d\n", ret);
1009 /******************************************************************
1010 * macho_load_file_from_path
1011 * Tries to load a Mach-O file from a set of paths (separated by ':')
1013 static BOOL macho_load_file_from_path(HANDLE hProcess,
1014 const WCHAR* filename,
1015 unsigned long load_addr,
1017 struct macho_info* macho_info)
1021 WCHAR* pathW = NULL;
1024 TRACE("(%p, %s, 0x%08lx, %s, %p)\n", hProcess, debugstr_w(filename), load_addr,
1025 debugstr_a(path), macho_info);
1027 if (!path) return FALSE;
1029 len = MultiByteToWideChar(CP_UNIXCP, 0, path, -1, NULL, 0);
1030 pathW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1031 if (!pathW) return FALSE;
1032 MultiByteToWideChar(CP_UNIXCP, 0, path, -1, pathW, len);
1034 for (s = pathW; s && *s; s = (t) ? (t+1) : NULL)
1036 t = strchrW(s, ':');
1038 fn = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(filename) + 1 + lstrlenW(s) + 1) * sizeof(WCHAR));
1041 strcatW(fn, S_SlashW);
1042 strcatW(fn, filename);
1043 ret = macho_load_file(hProcess, fn, load_addr, macho_info);
1044 HeapFree(GetProcessHeap(), 0, fn);
1046 s = (t) ? (t+1) : NULL;
1049 TRACE(" => %d\n", ret);
1050 HeapFree(GetProcessHeap(), 0, pathW);
1054 /******************************************************************
1055 * macho_load_file_from_dll_path
1057 * Tries to load a Mach-O file from the dll path
1059 static BOOL macho_load_file_from_dll_path(HANDLE hProcess,
1060 const WCHAR* filename,
1061 unsigned long load_addr,
1062 struct macho_info* macho_info)
1065 unsigned int index = 0;
1068 TRACE("(%p, %s, 0x%08lx, %p)\n", hProcess, debugstr_w(filename), load_addr,
1071 while (!ret && (path = wine_dll_enum_load_path( index++ )))
1076 len = MultiByteToWideChar(CP_UNIXCP, 0, path, -1, NULL, 0);
1078 name = HeapAlloc( GetProcessHeap(), 0,
1079 (len + lstrlenW(filename) + 2) * sizeof(WCHAR) );
1082 MultiByteToWideChar(CP_UNIXCP, 0, path, -1, name, len);
1083 strcatW( name, S_SlashW );
1084 strcatW( name, filename );
1085 ret = macho_load_file(hProcess, name, load_addr, macho_info);
1086 HeapFree( GetProcessHeap(), 0, name );
1088 TRACE(" => %d\n", ret);
1092 /******************************************************************
1093 * macho_search_and_load_file
1095 * Lookup a file in standard Mach-O locations, and if found, load it
1097 static BOOL macho_search_and_load_file(struct process* pcs, const WCHAR* filename,
1098 unsigned long load_addr,
1099 struct macho_info* macho_info)
1102 struct module* module;
1103 static WCHAR S_libstdcPPW[] = {'l','i','b','s','t','d','c','+','+','\0'};
1106 TRACE("(%p/%p, %s, 0x%08lx, %p)\n", pcs, pcs->handle, debugstr_w(filename), load_addr,
1109 if (filename == NULL || *filename == '\0') return FALSE;
1110 if ((module = module_is_already_loaded(pcs, filename)))
1112 macho_info->module = module;
1113 module->macho_info->in_use = 1;
1114 return module->module.SymType;
1117 if (strstrW(filename, S_libstdcPPW)) return FALSE; /* We know we can't do it */
1119 /* If has no directories, try LD_LIBRARY_PATH first. */
1120 if (!strchrW(filename, '/'))
1122 ret = macho_load_file_from_path(pcs, filename, load_addr,
1123 getenv("PATH"), macho_info);
1125 /* Try DYLD_LIBRARY_PATH, with just the filename (no directories). */
1128 if ((p = strrchrW(filename, '/'))) p++;
1130 ret = macho_load_file_from_path(pcs, p, load_addr,
1131 getenv("DYLD_LIBRARY_PATH"), macho_info);
1133 /* Try the path as given. */
1135 ret = macho_load_file(pcs, filename, load_addr, macho_info);
1136 /* Try DYLD_FALLBACK_LIBRARY_PATH, with just the filename (no directories). */
1139 ret = macho_load_file_from_path(pcs, p, load_addr,
1140 getenv("DYLD_FALLBACK_LIBRARY_PATH"), macho_info);
1142 if (!ret && !strchrW(filename, '/'))
1143 ret = macho_load_file_from_dll_path(pcs, filename, load_addr, macho_info);
1148 /******************************************************************
1149 * macho_enum_modules_internal
1151 * Enumerate Mach-O modules from a running process
1153 static BOOL macho_enum_modules_internal(const struct process* pcs,
1154 const WCHAR* main_name,
1155 enum_modules_cb cb, void* user)
1157 struct dyld_all_image_infos image_infos;
1158 struct dyld_image_info* info_array = NULL;
1162 WCHAR bufstrW[MAX_PATH];
1165 TRACE("(%p/%p, %s, %p, %p)\n", pcs, pcs->handle, debugstr_w(main_name), cb,
1168 if (!pcs->dbg_hdr_addr ||
1169 !ReadProcessMemory(pcs->handle, (void*)pcs->dbg_hdr_addr,
1170 &image_infos, sizeof(image_infos), NULL) ||
1171 !image_infos.infoArray)
1173 TRACE("Process has %u image infos at %p\n", image_infos.infoArrayCount, image_infos.infoArray);
1175 len = image_infos.infoArrayCount * sizeof(info_array[0]);
1176 info_array = HeapAlloc(GetProcessHeap(), 0, len);
1178 !ReadProcessMemory(pcs->handle, image_infos.infoArray,
1179 info_array, len, NULL))
1181 TRACE("... read image infos\n");
1183 for (i = 0; i < image_infos.infoArrayCount; i++)
1185 if (info_array[i].imageFilePath != NULL &&
1186 ReadProcessMemory(pcs->handle, info_array[i].imageFilePath, bufstr, sizeof(bufstr), NULL))
1188 bufstr[sizeof(bufstr) - 1] = '\0';
1189 TRACE("[%d] image file %s\n", i, debugstr_a(bufstr));
1190 MultiByteToWideChar(CP_UNIXCP, 0, bufstr, -1, bufstrW, sizeof(bufstrW) / sizeof(WCHAR));
1191 if (main_name && !bufstrW[0]) strcpyW(bufstrW, main_name);
1192 if (!cb(bufstrW, (unsigned long)info_array[i].imageLoadAddress, user)) break;
1198 HeapFree(GetProcessHeap(), 0, info_array);
1204 struct process* pcs;
1205 struct macho_info macho_info;
1208 static BOOL macho_enum_sync_cb(const WCHAR* name, unsigned long addr, void* user)
1210 struct macho_sync* ms = user;
1212 TRACE("(%s, 0x%08lx, %p)\n", debugstr_w(name), addr, user);
1213 macho_search_and_load_file(ms->pcs, name, addr, &ms->macho_info);
1217 /******************************************************************
1218 * macho_synchronize_module_list
1220 * Rescans the debuggee's modules list and synchronizes it with
1221 * the one from 'pcs', ie:
1222 * - if a module is in debuggee and not in pcs, it's loaded into pcs
1223 * - if a module is in pcs and not in debuggee, it's unloaded from pcs
1225 BOOL macho_synchronize_module_list(struct process* pcs)
1227 struct module* module;
1228 struct macho_sync ms;
1230 TRACE("(%p/%p)\n", pcs, pcs->handle);
1232 for (module = pcs->lmodules; module; module = module->next)
1234 if (module->type == DMT_MACHO && !module->is_virtual)
1235 module->macho_info->in_use = 0;
1239 ms.macho_info.flags = MACHO_INFO_MODULE;
1240 if (!macho_enum_modules_internal(pcs, NULL, macho_enum_sync_cb, &ms))
1243 module = pcs->lmodules;
1246 if (module->type == DMT_MACHO && !module->is_virtual &&
1247 !module->macho_info->in_use && !module->macho_info->is_loader)
1249 module_remove(pcs, module);
1250 /* restart all over */
1251 module = pcs->lmodules;
1253 else module = module->next;
1258 /******************************************************************
1259 * macho_search_loader
1261 * Lookup in a running Mach-O process the loader, and sets its Mach-O link
1262 * address (for accessing the list of loaded images) in pcs.
1263 * If flags is MACHO_INFO_MODULE, the module for the loader is also
1264 * added as a module into pcs.
1266 static BOOL macho_search_loader(struct process* pcs, struct macho_info* macho_info)
1271 TRACE("(%p/%p, %p)\n", pcs, pcs->handle, macho_info);
1273 /* All binaries are loaded with WINELOADER (if run from tree) or by the
1276 if ((ptr = getenv("WINELOADER")))
1278 WCHAR tmp[MAX_PATH];
1279 MultiByteToWideChar(CP_UNIXCP, 0, ptr, -1, tmp, sizeof(tmp) / sizeof(WCHAR));
1280 ret = macho_search_and_load_file(pcs, tmp, 0, macho_info);
1284 ret = macho_search_and_load_file(pcs, S_WineW, 0, macho_info);
1289 /******************************************************************
1290 * macho_read_wine_loader_dbg_info
1292 * Try to find a decent wine executable which could have loaded the debuggee
1294 BOOL macho_read_wine_loader_dbg_info(struct process* pcs)
1296 struct macho_info macho_info;
1298 TRACE("(%p/%p)\n", pcs, pcs->handle);
1299 macho_info.flags = MACHO_INFO_DEBUG_HEADER | MACHO_INFO_MODULE;
1300 if (!macho_search_loader(pcs, &macho_info)) return FALSE;
1301 macho_info.module->macho_info->is_loader = 1;
1302 module_set_module(macho_info.module, S_WineLoaderW);
1303 return (pcs->dbg_hdr_addr = macho_info.dbg_hdr_addr) != 0;
1306 /******************************************************************
1307 * macho_enum_modules
1309 * Enumerates the Mach-O loaded modules from a running target (hProc)
1310 * This function doesn't require that someone has called SymInitialize
1311 * on this very process.
1313 BOOL macho_enum_modules(HANDLE hProc, enum_modules_cb cb, void* user)
1316 struct macho_info macho_info;
1319 TRACE("(%p, %p, %p)\n", hProc, cb, user);
1320 memset(&pcs, 0, sizeof(pcs));
1322 macho_info.flags = MACHO_INFO_DEBUG_HEADER | MACHO_INFO_NAME;
1323 if (!macho_search_loader(&pcs, &macho_info)) return FALSE;
1324 pcs.dbg_hdr_addr = macho_info.dbg_hdr_addr;
1325 ret = macho_enum_modules_internal(&pcs, macho_info.module_name, cb, user);
1326 HeapFree(GetProcessHeap(), 0, (char*)macho_info.module_name);
1332 struct process* pcs;
1333 struct macho_info macho_info;
1338 /******************************************************************
1341 * Callback for macho_load_module, used to walk the list of loaded
1344 static BOOL macho_load_cb(const WCHAR* name, unsigned long addr, void* user)
1346 struct macho_load* ml = user;
1349 TRACE("(%s, 0x%08lx, %p)\n", debugstr_w(name), addr, user);
1351 /* memcmp is needed for matches when bufstr contains also version information
1352 * ml->name: libc.so, name: libc.so.6.0
1354 p = strrchrW(name, '/');
1356 if (!memcmp(p, ml->name, lstrlenW(ml->name) * sizeof(WCHAR)))
1358 ml->ret = macho_search_and_load_file(ml->pcs, name, addr, &ml->macho_info);
1364 /******************************************************************
1367 * Loads a Mach-O module and stores it in process' module list.
1368 * Also, find module real name and load address from
1369 * the real loaded modules list in pcs address space.
1371 struct module* macho_load_module(struct process* pcs, const WCHAR* name, unsigned long addr)
1373 struct macho_load ml;
1375 TRACE("(%p/%p, %s, 0x%08lx)\n", pcs, pcs->handle, debugstr_w(name), addr);
1377 ml.macho_info.flags = MACHO_INFO_MODULE;
1380 if (pcs->dbg_hdr_addr) /* we're debugging a live target */
1383 /* do only the lookup from the filename, not the path (as we lookup module
1384 * name in the process' loaded module list)
1386 ml.name = strrchrW(name, '/');
1387 if (!ml.name++) ml.name = name;
1390 if (!macho_enum_modules_internal(pcs, NULL, macho_load_cb, &ml))
1396 ml.ret = macho_search_and_load_file(pcs, ml.name, addr, &ml.macho_info);
1398 if (!ml.ret) return NULL;
1399 assert(ml.macho_info.module);
1400 return ml.macho_info.module;
1403 #else /* !__MACH__ */
1405 BOOL macho_synchronize_module_list(struct process* pcs)
1410 BOOL macho_fetch_file_info(const WCHAR* name, DWORD* base,
1411 DWORD* size, DWORD* checksum)
1416 BOOL macho_read_wine_loader_dbg_info(struct process* pcs)
1421 BOOL macho_enum_modules(HANDLE hProc, enum_modules_cb cb, void* user)
1426 struct module* macho_load_module(struct process* pcs, const WCHAR* name, unsigned long addr)
1431 BOOL macho_load_debug_info(struct module* module, struct macho_file_map* fmap)
1435 #endif /* __MACH__ */