From a334319f6530564d22e775935d9c91663623a1b4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 22 Dec 2004 20:10:10 +0000 Subject: (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. --- sysdeps/generic/backtracesymsfd.c | 63 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 sysdeps/generic/backtracesymsfd.c (limited to 'sysdeps/generic/backtracesymsfd.c') diff --git a/sysdeps/generic/backtracesymsfd.c b/sysdeps/generic/backtracesymsfd.c new file mode 100644 index 0000000000..c704362ec7 --- /dev/null +++ b/sysdeps/generic/backtracesymsfd.c @@ -0,0 +1,63 @@ +/* Write formatted list with names for addresses in backtrace to a file. + Copyright (C) 1998, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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 +#include +#include + +#include +#include + +#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) -- cgit 1.4.1