GDB7 supports python scripting
(gdb) bt
#0 0x00007ffff6eef175 in raise (sig=<value optimized out>)
at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff6ef1f80 in abort () at abort.c:92
#2 0x0000000100000dc4 in ?? ()
#3 0x0000000000000000 in ?? ()
(gdb) mbt
#0 0x7ffff6eef175 raise at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x7ffff6ef1f80 abort at abort.c:92
#2 ./mach/pthread.c.clang.bin(main+64) [0x100000dc4(dc4)]
#3 0x0 None
My loader reads LC_SYMTAB to show the name of functions