64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/* Write formatted list with names for addresses in backtrace to a file.
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Copyright (C) 1998, 2003, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <execinfo.h>
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#include <string.h>
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#include <sys/uio.h>
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#include <stdio-common/_itoa.h>
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#include <not-cancel.h>
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#if __ELF_NATIVE_CLASS == 32
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# define WORD_WIDTH 8
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#else
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/* We assume 64bits. */
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# define WORD_WIDTH 16
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#endif
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void
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__backtrace_symbols_fd (array, size, fd)
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void *const *array;
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int size;
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int fd;
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{
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struct iovec iov[3];
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int cnt;
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for (cnt = 0; cnt < size; ++cnt)
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{
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char buf[WORD_WIDTH];
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iov[0].iov_base = (void *) "[0x";
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iov[0].iov_len = 3;
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iov[1].iov_base = _itoa_word ((unsigned long int) array[cnt],
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&buf[WORD_WIDTH], 16, 0);
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iov[1].iov_len = &buf[WORD_WIDTH] - (char *) iov[1].iov_base;
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iov[2].iov_base = (void *) "]\n";
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iov[2].iov_len = 2;
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/* We prefer to use the non-cancelable interface if it is available. */
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writev_not_cancel_no_status (fd, iov, 3);
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}
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}
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weak_alias (__backtrace_symbols_fd, backtrace_symbols_fd)
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libc_hidden_def (__backtrace_symbols_fd)
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