root@localhost:~# gdb ./test_egl core
GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "arm-linux-gnueabi".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /root/test_egl...done.
[New LWP 1502]
[New LWP 1504]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-gnueabi/libthread_db.so.1".
Core was generated by `./test_egl'.
Program terminated with signal 6, Aborted.
#0  0x401bb276 in ?? () from /lib/arm-linux-gnueabi/libc.so.6
(gdb) bt
#0  0x401bb276 in ?? () from /lib/arm-linux-gnueabi/libc.so.6
#1  0x401c8e52 in raise () from /lib/arm-linux-gnueabi/libc.so.6
#2  0x401cb228 in abort () from /lib/arm-linux-gnueabi/libc.so.6
#3  0x401ef688 in ?? () from /lib/arm-linux-gnueabi/libc.so.6
#4  0x401ef688 in ?? () from /lib/arm-linux-gnueabi/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)