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author | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 08:43:25 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2005-12-14 08:43:25 +0000 |
commit | b6ab06cef4670e02756bcdd4d2c33a49369a4346 (patch) | |
tree | b30743eb9728d890d1519f62b2d1f2b96f62547a /debug/backtracesymsfd.c | |
parent | d1dc39a44e339f9c48baa3854fffb3d68c73c8fa (diff) | |
download | glibc-b6ab06cef4670e02756bcdd4d2c33a49369a4346.tar.gz glibc-b6ab06cef4670e02756bcdd4d2c33a49369a4346.tar.xz glibc-b6ab06cef4670e02756bcdd4d2c33a49369a4346.zip |
2005-12-13 Ulrich Drepper <drepper@redhat.com>
Diffstat (limited to 'debug/backtracesymsfd.c')
-rw-r--r-- | debug/backtracesymsfd.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/debug/backtracesymsfd.c b/debug/backtracesymsfd.c new file mode 100644 index 0000000000..b01f8b0094 --- /dev/null +++ b/debug/backtracesymsfd.c @@ -0,0 +1,64 @@ +/* Write formatted list with names for addresses in backtrace to a file. + Copyright (C) 1998, 2003, 2005 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 <execinfo.h> +#include <string.h> +#include <sys/uio.h> + +#include <stdio-common/_itoa.h> +#include <not-cancel.h> + +#if __ELF_NATIVE_CLASS == 32 +# define WORD_WIDTH 8 +#else +/* We assume 64bits. */ +# define WORD_WIDTH 16 +#endif + + +void +__backtrace_symbols_fd (array, size, fd) + void *const *array; + int size; + int fd; +{ + struct iovec iov[3]; + int cnt; + + for (cnt = 0; cnt < size; ++cnt) + { + char buf[WORD_WIDTH]; + + iov[0].iov_base = (void *) "[0x"; + iov[0].iov_len = 3; + + iov[1].iov_base = _itoa_word ((unsigned long int) array[cnt], + &buf[WORD_WIDTH], 16, 0); + iov[1].iov_len = &buf[WORD_WIDTH] - (char *) iov[1].iov_base; + + iov[2].iov_base = (void *) "]\n"; + iov[2].iov_len = 2; + + /* We prefer to use the non-cancelable interface if it is available. */ + writev_not_cancel_no_status (fd, iov, 3); + } +} +weak_alias (__backtrace_symbols_fd, backtrace_symbols_fd) +libc_hidden_def (__backtrace_symbols_fd) |