diff options
| author | Salvatore Cro <salvatore.cro@st.com> | 2010-09-09 15:45:44 +0200 |
|---|---|---|
| committer | Carmelo Amoroso <carmelo.amoroso@st.com> | 2010-09-15 12:31:22 +0200 |
| commit | 37eb913ed8c4798b736e678f4dbd9f4a91a68f74 (patch) | |
| tree | 63fc2c1dbb887a043a7291c9c6215d2db7b5ba5a /libubacktrace/backtrace.c | |
| parent | 7ac7be14eb4c8927fddffbe01fed74c605bf8597 (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 'libubacktrace/backtrace.c')
| -rw-r--r-- | libubacktrace/backtrace.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libubacktrace/backtrace.c b/libubacktrace/backtrace.c new file mode 100644 index 000000000..872180028 --- /dev/null +++ b/libubacktrace/backtrace.c @@ -0,0 +1,19 @@ +/* + * Perform stack unwinding by using the _Unwind_Backtrace. + * + * User application that wants to use backtrace needs to be + * compiled with -fexceptions option and -rdynamic to get full + * symbols printed. + + * Copyright (C) 2010 STMicroelectronics Ltd + * Author(s): Carmelo Amoroso <carmelo.amoroso@st.com> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + * + */ +#error "Arch specific implementation must be provided to properly work" +int backtrace (void **array, int size) +{ + return -1; +} + |