diff options
Diffstat (limited to 'sysdeps/generic/elf/backtracesyms.c')
| -rw-r--r-- | sysdeps/generic/elf/backtracesyms.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/sysdeps/generic/elf/backtracesyms.c b/sysdeps/generic/elf/backtracesyms.c deleted file mode 100644 index d75ce0a321..0000000000 --- a/sysdeps/generic/elf/backtracesyms.c +++ /dev/null @@ -1,122 +0,0 @@ -/* Return list with names for address in backtrace. - Copyright (C) 1998,1999,2000,2001,2003,2009 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. - - The GNU C 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. - - The GNU C 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 the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <assert.h> -#include <execinfo.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <ldsodefs.h> - -#if __ELF_NATIVE_CLASS == 32 -# define WORD_WIDTH 8 -#else -/* We assyme 64bits. */ -# define WORD_WIDTH 16 -#endif - - -char ** -__backtrace_symbols (array, size) - void *const *array; - int size; -{ - Dl_info info[size]; - int status[size]; - int cnt; - size_t total = 0; - char **result; - - /* Fill in the information we can get from `dladdr'. */ - for (cnt = 0; cnt < size; ++cnt) - { - struct link_map *map; - status[cnt] = _dl_addr (array[cnt], &info[cnt], &map, NULL); - if (status[cnt] && info[cnt].dli_fname && info[cnt].dli_fname[0] != '\0') - { - /* We have some info, compute the length of the string which will be - "<file-name>(<sym-name>+offset) [address]. */ - total += (strlen (info[cnt].dli_fname ?: "") - + strlen (info[cnt].dli_sname ?: "") - + 3 + WORD_WIDTH + 3 + WORD_WIDTH + 5); - - /* The load bias is more useful to the user than the load - address. The use of these addresses is to calculate an - address in the ELF file, so its prelinked bias is not - something we want to subtract out. */ - info[cnt].dli_fbase = (void *) map->l_addr; - } - else - total += 5 + WORD_WIDTH; - } - - /* Allocate memory for the result. */ - result = (char **) malloc (size * sizeof (char *) + total); - if (result != NULL) - { - char *last = (char *) (result + size); - - for (cnt = 0; cnt < size; ++cnt) - { - result[cnt] = last; - - if (status[cnt] - && info[cnt].dli_fname != NULL && info[cnt].dli_fname[0] != '\0') - { - if (info[cnt].dli_sname == NULL) - /* We found no symbol name to use, so describe it as - relative to the file. */ - info[cnt].dli_saddr = info[cnt].dli_fbase; - - if (info[cnt].dli_sname == NULL && info[cnt].dli_saddr == 0) - last += 1 + sprintf (last, "%s(%s) [%p]", - info[cnt].dli_fname ?: "", - info[cnt].dli_sname ?: "", - array[cnt]); - else - { - char sign; - ptrdiff_t offset; - if (array[cnt] >= (void *) info[cnt].dli_saddr) - { - sign = '+'; - offset = array[cnt] - info[cnt].dli_saddr; - } - else - { - sign = '-'; - offset = info[cnt].dli_saddr - array[cnt]; - } - - last += 1 + sprintf (last, "%s(%s%c%#tx) [%p]", - info[cnt].dli_fname ?: "", - info[cnt].dli_sname ?: "", - sign, offset, array[cnt]); - } - } - else - last += 1 + sprintf (last, "[%p]", array[cnt]); - } - assert (last <= (char *) result + size * sizeof (char *) + total); - } - - return result; -} -weak_alias (__backtrace_symbols, backtrace_symbols) |