Using gdb with C programs

I want to access the symbol table from within a C program, and gdb looks like a nice solution. But I couldn't find any api for gdb. Is there a way to use gdb within C programs ? ___ bug-gdb mailing list bug-gdb@gnu.org

back trace in GDB

Hi I am try to analyse a core dump when running a java application. I using the command gdb /usr/java/bin/sparc/native_threads/java core info threads instead of showing the top frame of each thread shows addresslocation in ?? () I think I am missing some env setting here. Any