Debugging GCC

[Brendon Costa <bcosta@avdat.com.au>]

Hi all,

    I have been working on a small extension to the C++ front end of GCC 
that helps me to document exceptions while compiling code. Anyway my 
extension requires me to modify GCC and so I am modifying version 4.0.1. 
Through developing this I have come across a single frustration that has 
slowed my development down a lot. Basically GCC seems to catch any 
SIGSEGV generated and then spit out an Internal Compiler Error. This is 
ok, I am still trying to debug some of my code that is producing the 
exception, but the problem is that I want to run g++ inside a debugg 
(gdb) in order to find out where the SIGSEV is being generated. 
Currently I have a lot of very extensive logging procedures that try to 
narrow down the problem, but it is still tedious.

Does anyone know a way of invoking g++ inside gdb or compiling g++ so 
that g++ will not handle the SIGSEGV signal but would crash instead so 
GDB can give me a stack trace of the place where the segmentation fault 
occurred?

Thanks,
Brendon.