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authorSalvatore Cro <salvatore.cro@st.com>2010-09-09 15:45:44 +0200
committerCarmelo Amoroso <carmelo.amoroso@st.com>2010-09-15 12:31:22 +0200
commit37eb913ed8c4798b736e678f4dbd9f4a91a68f74 (patch)
tree63fc2c1dbb887a043a7291c9c6215d2db7b5ba5a /include
parent7ac7be14eb4c8927fddffbe01fed74c605bf8597 (diff)
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 <carmelo.amoroso@st.com>
Diffstat (limited to 'include')
-rw-r--r--include/execinfo.h44
1 files changed, 44 insertions, 0 deletions
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 <features.h>
+
+__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 */