Re: [RFC]: patch 1 for Sun C compiled target programs

Daniel Jacobowitz
2004-06-18T23:27:08Z

On Fri, Jun 18, 2004 at 11:47:22PM +0200, Mark Kettenis wrote:
> Date: Wed, 16 Jun 2004 19:57:32 +0200
> From: Michael Mueller <m.mueller99@kay-mueller.de>
>
> Setting a breakpoint on a function name or on the first line of a
> function doesn't work for Sun C compiled target programs (32 and 64
> bit). I verified this against these compiler versions:
>
> Sun C 5.5 2003/03/12
> Forte Developer 7 C 5.4 2002/03/09
> Sun WorkShop 6 update 2 C 5.3 2001/05/15
> Sun WorkShop 6 2000/04/07 C 5.1
>
> Ah yes. I knew about this. Just forgotten all about it. The funny
> code you're seeing is there to work around a bug in GCC 2.95. GDB
> fiddles a bit with the line number info trying to fix the breakage.
> It's completely bogus, and should go since it messes up real-world
> debugging with GCC 2.95 too. Unfortunately doing so will mess up the
> testsuite results when using GCC 2.95 :-(.
>
> I'll try to get this fixed before the 6.2 release. Thanks for giving
> me a bit more ammunition for getting this change accepted by the rest
> of the crowd.

Yeah, I recognized his symptoms also. We have fixes for this issue in
both the stabs reader and the dwarf reader. We could try tying them to
gcc_compiled (is it available by then?). Or we could just give up and
rip them out.

--
Daniel Jacobowitz