mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 15:00:06 +00:00
8dd569934c
* dlfcn/Makefile (libdl-routines): Add dladdr1. * dlfcn/dladdr1.c: New file. * dlfcn/dlfcn.h [__USE_GNU]: Declare dladdr1. [__USE_GNU] (RTLD_DL_SYMENT, RTLD_DL_LINKMAP): New enum constants. * elf/dl-addr.c (_dl_addr): Take new args, a struct link_map ** and a const ElfNN_Sym ** to fill in. * include/dlfcn.h: Update decl. Include <link.h>. * dlfcn/dladdr.c (dladdr): Update caller. * malloc/mtrace.c (tr_where): Likewise. * sysdeps/generic/elf/backtracesyms.c: Likewise. * sysdeps/generic/elf/backtracesymsfd.c: Likewise. * dlfcn/Versions (libdl: GLIBC_2.3.3): New set, add dladdr1. * Versions.def (libdl): Define GLIBC_2.3.3 set.
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/* Return list with names for address in backtrace.
|
|
Copyright (C) 1998,1999,2000,2001,2003 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#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)
|
|
{
|
|
status[cnt] = _dl_addr (array[cnt], &info[cnt], NULL, 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]. */
|
|
total += (strlen (info[cnt].dli_fname ?: "")
|
|
+ (info[cnt].dli_sname
|
|
? strlen (info[cnt].dli_sname) + 3 + WORD_WIDTH + 3
|
|
: 1)
|
|
+ WORD_WIDTH + 5);
|
|
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
|
|
&& info[cnt].dli_fname[0] != '\0')
|
|
{
|
|
char buf[20];
|
|
|
|
if (array[cnt] >= (void *) info[cnt].dli_saddr)
|
|
sprintf (buf, "+%#lx",
|
|
(unsigned long)(array[cnt] - info[cnt].dli_saddr));
|
|
else
|
|
sprintf (buf, "-%#lx",
|
|
(unsigned long)(info[cnt].dli_saddr - array[cnt]));
|
|
|
|
last += 1 + sprintf (last, "%s%s%s%s%s[%p]",
|
|
info[cnt].dli_fname ?: "",
|
|
info[cnt].dli_sname ? "(" : "",
|
|
info[cnt].dli_sname ?: "",
|
|
info[cnt].dli_sname ? buf : "",
|
|
info[cnt].dli_sname ? ") " : " ",
|
|
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)
|