On Tue, May 16, 2006 at 05:02:35PM -0700, Tony Lin wrote: > When I force a core file and try to debug it, I get empty values: > > >./gdb ./nebtest ./core.524.nebtest > > GNU gdb 6.4 > Copyright 2005 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "mips-linux"...Using host libthread_db > library "/lib/libthread_db.so.1". > > Core was generated by `./nebtest'. > Program terminated with signal 11, Segmentation fault. > Reading symbols from /lib/libgcc_s.so.1...done. > Loaded symbols for /lib/libgcc_s.so.1 > Reading symbols from /lib/libc.so.6...done. > Loaded symbols for /lib/libc.so.6 > Reading symbols from /lib/ld.so.1...done. > Loaded symbols for /lib/ld.so.1 > #0 0x00000000 in ?? () > (gdb) bt > #0 0x00000000 in ?? () > #1 0x00000000 in ?? () Check the contents of the core file with objdump? I recall seeing at least one recent MIPS kernel which failed to save registers. Take a look at the .reg section. -- Daniel Jacobowitz CodeSourcery
