58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* Return list with names for address in backtrace.
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Copyright (C) 1998, 2000 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 <stdlib.h>
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#include <string.h>
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/* Assume the worst for the width of an address. */
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#define WORD_WIDTH 16
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char **
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__backtrace_symbols (array, size)
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void *const *array;
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int size;
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{
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int cnt;
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size_t total = 0;
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char **result;
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/* We can compute the text size needed for the symbols since we print
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them all as "[+0x<addr>]". */
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total = size * (WORD_WIDTH + 6);
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/* Allocate memory for the result. */
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result = malloc (size * sizeof (char *) + total);
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if (result != NULL)
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{
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char *last = (char *) (result + size);
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for (cnt = 0; cnt < size; ++cnt)
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{
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result[cnt] = last;
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last += 1 + sprintf (last, "[+%p]", array[cnt]);
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}
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}
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return result;
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}
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weak_alias (__backtrace_symbols, backtrace_symbols)
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