From 37eb913ed8c4798b736e678f4dbd9f4a91a68f74 Mon Sep 17 00:00:00 2001 From: Salvatore Cro Date: Thu, 9 Sep 2010 15:45:44 +0200 Subject: libubacktrace: Provide uClibc with backtrace functions A new shared object, libubacktrace.so.0 is added to uClibc to provide backtrace functions to support application self-debugging. This set of functions requires to dynamically load libgcc_s.so so they need to call dlopen/dlsym that are provided by libdl. For this reason they cannot be included into libc.so.0 but are provided by a new library. User application that wants to use backtrace needs to be compiled with -fexceptions option and -rdynamic to get full symbols printed and must be linked against libubacktrace.so Signed-off-by: Carmelo Amoroso --- include/execinfo.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/execinfo.h (limited to 'include') diff --git a/include/execinfo.h b/include/execinfo.h new file mode 100644 index 000000000..c1614cc1f --- /dev/null +++ b/include/execinfo.h @@ -0,0 +1,44 @@ +/* Copyright (C) 1998, 1999, 2004, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#ifndef _EXECINFO_H +#define _EXECINFO_H 1 + +#include + +__BEGIN_DECLS + +/* Store up to SIZE return address of the current program state in + ARRAY and return the exact number of values stored. */ +extern int backtrace (void **__array, int __size) __nonnull ((1)); + + +/* Return names of functions from the backtrace list in ARRAY in a newly + malloc()ed memory block. */ +extern char **backtrace_symbols (void *__const *__array, int __size) + __THROW __nonnull ((1)); + + +/* This function is similar to backtrace_symbols() but it writes the result + immediately to a file. */ +extern void backtrace_symbols_fd (void *__const *__array, int __size, int __fd) + __THROW __nonnull ((1)); + +__END_DECLS + +#endif /* execinfo.h */ -- cgit v1.2.3