diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/client/mac/handler/breakpad_nlist_64.cc')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/client/mac/handler/breakpad_nlist_64.cc | 402 |
1 files changed, 0 insertions, 402 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/client/mac/handler/breakpad_nlist_64.cc b/toolkit/crashreporter/google-breakpad/src/client/mac/handler/breakpad_nlist_64.cc deleted file mode 100644 index 3492b823d..000000000 --- a/toolkit/crashreporter/google-breakpad/src/client/mac/handler/breakpad_nlist_64.cc +++ /dev/null @@ -1,402 +0,0 @@ -/* - * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. - * - * @APPLE_LICENSE_HEADER_START@ - * - * This file contains Original Code and/or Modifications of Original Code - * as defined in and that are subject to the Apple Public Source License - * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * - * The Original Code and all software distributed under the License are - * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER - * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. - * - * @APPLE_LICENSE_HEADER_END@ - */ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - - -/* - * This file was copied from libc/gen/nlist.c from Darwin's source code - * The version of nlist used as a base is from 10.5.2, libc-498 - * http://www.opensource.apple.com/darwinsource/10.5.2/Libc-498/gen/nlist.c - * - * The full tarball is at: - * http://www.opensource.apple.com/darwinsource/tarballs/apsl/Libc-498.tar.gz - * - * I've modified it to be compatible with 64-bit images. -*/ - -#include "breakpad_nlist_64.h" - -#include <CoreFoundation/CoreFoundation.h> -#include <fcntl.h> -#include <mach-o/nlist.h> -#include <mach-o/loader.h> -#include <mach-o/fat.h> -#include <mach/mach.h> -#include <stdio.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/uio.h> -#include <TargetConditionals.h> -#include <unistd.h> - -/* Stuff lifted from <a.out.h> and <sys/exec.h> since they are gone */ -/* - * Header prepended to each a.out file. - */ -struct exec { - unsigned short a_machtype; /* machine type */ - unsigned short a_magic; /* magic number */ - unsigned long a_text; /* size of text segment */ - unsigned long a_data; /* size of initialized data */ - unsigned long a_bss; /* size of uninitialized data */ - unsigned long a_syms; /* size of symbol table */ - unsigned long a_entry; /* entry point */ - unsigned long a_trsize; /* size of text relocation */ - unsigned long a_drsize; /* size of data relocation */ -}; - -#define OMAGIC 0407 /* old impure format */ -#define NMAGIC 0410 /* read-only text */ -#define ZMAGIC 0413 /* demand load format */ - -#define N_BADMAG(x) \ - (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC) -#define N_TXTOFF(x) \ - ((x).a_magic==ZMAGIC ? 0 : sizeof (struct exec)) -#define N_SYMOFF(x) \ - (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize+(x).a_drsize) - -// Traits structs for specializing function templates to handle -// 32-bit/64-bit Mach-O files. -template<typename T> -struct MachBits {}; - -typedef struct nlist nlist32; -typedef struct nlist_64 nlist64; - -template<> -struct MachBits<nlist32> { - typedef mach_header mach_header_type; - typedef uint32_t word_type; - static const uint32_t magic = MH_MAGIC; -}; - -template<> -struct MachBits<nlist64> { - typedef mach_header_64 mach_header_type; - typedef uint64_t word_type; - static const uint32_t magic = MH_MAGIC_64; -}; - -template<typename nlist_type> -int -__breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames, - cpu_type_t cpu_type); - -/* - * nlist - retreive attributes from name list (string table version) - */ - -template <typename nlist_type> -int breakpad_nlist_common(const char *name, - nlist_type *list, - const char **symbolNames, - cpu_type_t cpu_type) { - int fd = open(name, O_RDONLY, 0); - if (fd < 0) - return -1; - int n = __breakpad_fdnlist(fd, list, symbolNames, cpu_type); - close(fd); - return n; -} - -int breakpad_nlist(const char *name, - struct nlist *list, - const char **symbolNames, - cpu_type_t cpu_type) { - return breakpad_nlist_common(name, list, symbolNames, cpu_type); -} - -int breakpad_nlist(const char *name, - struct nlist_64 *list, - const char **symbolNames, - cpu_type_t cpu_type) { - return breakpad_nlist_common(name, list, symbolNames, cpu_type); -} - -/* Note: __fdnlist() is called from kvm_nlist in libkvm's kvm.c */ - -template<typename nlist_type> -int __breakpad_fdnlist(int fd, nlist_type *list, const char **symbolNames, - cpu_type_t cpu_type) { - typedef typename MachBits<nlist_type>::mach_header_type mach_header_type; - typedef typename MachBits<nlist_type>::word_type word_type; - - const uint32_t magic = MachBits<nlist_type>::magic; - - int maxlen = 500; - int nreq = 0; - for (nlist_type* q = list; - symbolNames[q-list] && symbolNames[q-list][0]; - q++, nreq++) { - - q->n_type = 0; - q->n_value = 0; - q->n_desc = 0; - q->n_sect = 0; - q->n_un.n_strx = 0; - } - - struct exec buf; - if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf) || - (N_BADMAG(buf) && *((uint32_t *)&buf) != magic && - CFSwapInt32BigToHost(*((uint32_t *)&buf)) != FAT_MAGIC && - /* The following is the big-endian ppc64 check */ - (*((uint32_t*)&buf)) != FAT_MAGIC)) { - return -1; - } - - /* Deal with fat file if necessary */ - unsigned arch_offset = 0; - if (CFSwapInt32BigToHost(*((uint32_t *)&buf)) == FAT_MAGIC || - /* The following is the big-endian ppc64 check */ - *((unsigned int *)&buf) == FAT_MAGIC) { - /* Read in the fat header */ - struct fat_header fh; - if (lseek(fd, 0, SEEK_SET) == -1) { - return -1; - } - if (read(fd, (char *)&fh, sizeof(fh)) != sizeof(fh)) { - return -1; - } - - /* Convert fat_narchs to host byte order */ - fh.nfat_arch = CFSwapInt32BigToHost(fh.nfat_arch); - - /* Read in the fat archs */ - struct fat_arch *fat_archs = - (struct fat_arch *)malloc(fh.nfat_arch * sizeof(struct fat_arch)); - if (fat_archs == NULL) { - return -1; - } - if (read(fd, (char *)fat_archs, - sizeof(struct fat_arch) * fh.nfat_arch) != - (ssize_t)(sizeof(struct fat_arch) * fh.nfat_arch)) { - free(fat_archs); - return -1; - } - - /* - * Convert archs to host byte ordering (a constraint of - * cpusubtype_getbestarch() - */ - for (unsigned i = 0; i < fh.nfat_arch; i++) { - fat_archs[i].cputype = - CFSwapInt32BigToHost(fat_archs[i].cputype); - fat_archs[i].cpusubtype = - CFSwapInt32BigToHost(fat_archs[i].cpusubtype); - fat_archs[i].offset = - CFSwapInt32BigToHost(fat_archs[i].offset); - fat_archs[i].size = - CFSwapInt32BigToHost(fat_archs[i].size); - fat_archs[i].align = - CFSwapInt32BigToHost(fat_archs[i].align); - } - - struct fat_arch *fap = NULL; - for (unsigned i = 0; i < fh.nfat_arch; i++) { - if (fat_archs[i].cputype == cpu_type) { - fap = &fat_archs[i]; - break; - } - } - - if (!fap) { - free(fat_archs); - return -1; - } - arch_offset = fap->offset; - free(fat_archs); - - /* Read in the beginning of the architecture-specific file */ - if (lseek(fd, arch_offset, SEEK_SET) == -1) { - return -1; - } - if (read(fd, (char *)&buf, sizeof(buf)) != sizeof(buf)) { - return -1; - } - } - - off_t sa; /* symbol address */ - off_t ss; /* start of strings */ - register_t n; - if (*((unsigned int *)&buf) == magic) { - if (lseek(fd, arch_offset, SEEK_SET) == -1) { - return -1; - } - mach_header_type mh; - if (read(fd, (char *)&mh, sizeof(mh)) != sizeof(mh)) { - return -1; - } - - struct load_command *load_commands = - (struct load_command *)malloc(mh.sizeofcmds); - if (load_commands == NULL) { - return -1; - } - if (read(fd, (char *)load_commands, mh.sizeofcmds) != - (ssize_t)mh.sizeofcmds) { - free(load_commands); - return -1; - } - struct symtab_command *stp = NULL; - struct load_command *lcp = load_commands; - // iterate through all load commands, looking for - // LC_SYMTAB load command - for (uint32_t i = 0; i < mh.ncmds; i++) { - if (lcp->cmdsize % sizeof(word_type) != 0 || - lcp->cmdsize <= 0 || - (char *)lcp + lcp->cmdsize > - (char *)load_commands + mh.sizeofcmds) { - free(load_commands); - return -1; - } - if (lcp->cmd == LC_SYMTAB) { - if (lcp->cmdsize != - sizeof(struct symtab_command)) { - free(load_commands); - return -1; - } - stp = (struct symtab_command *)lcp; - break; - } - lcp = (struct load_command *) - ((char *)lcp + lcp->cmdsize); - } - if (stp == NULL) { - free(load_commands); - return -1; - } - // sa points to the beginning of the symbol table - sa = stp->symoff + arch_offset; - // ss points to the beginning of the string table - ss = stp->stroff + arch_offset; - // n is the number of bytes in the symbol table - // each symbol table entry is an nlist structure - n = stp->nsyms * sizeof(nlist_type); - free(load_commands); - } else { - sa = N_SYMOFF(buf) + arch_offset; - ss = sa + buf.a_syms + arch_offset; - n = buf.a_syms; - } - - if (lseek(fd, sa, SEEK_SET) == -1) { - return -1; - } - - // the algorithm here is to read the nlist entries in m-sized - // chunks into q. q is then iterated over. for each entry in q, - // use the string table index(q->n_un.n_strx) to read the symbol - // name, then scan the nlist entries passed in by the user(via p), - // and look for a match - while (n) { - nlist_type space[BUFSIZ/sizeof (nlist_type)]; - register_t m = sizeof (space); - - if (n < m) - m = n; - if (read(fd, (char *)space, m) != m) - break; - n -= m; - off_t savpos = lseek(fd, 0, SEEK_CUR); - if (savpos == -1) { - return -1; - } - for (nlist_type* q = space; (m -= sizeof(nlist_type)) >= 0; q++) { - char nambuf[BUFSIZ]; - - if (q->n_un.n_strx == 0 || q->n_type & N_STAB) - continue; - - // seek to the location in the binary where the symbol - // name is stored & read it into memory - if (lseek(fd, ss+q->n_un.n_strx, SEEK_SET) == -1) { - return -1; - } - if (read(fd, nambuf, maxlen+1) == -1) { - return -1; - } - const char *s2 = nambuf; - for (nlist_type *p = list; - symbolNames[p-list] && symbolNames[p-list][0]; - p++) { - // get the symbol name the user has passed in that - // corresponds to the nlist entry that we're looking at - const char *s1 = symbolNames[p - list]; - while (*s1) { - if (*s1++ != *s2++) - goto cont; - } - if (*s2) - goto cont; - - p->n_value = q->n_value; - p->n_type = q->n_type; - p->n_desc = q->n_desc; - p->n_sect = q->n_sect; - p->n_un.n_strx = q->n_un.n_strx; - if (--nreq == 0) - return nreq; - - break; - cont: ; - } - } - if (lseek(fd, savpos, SEEK_SET) == -1) { - return -1; - } - } - return nreq; -} |