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Re: GCC 3.2.2

daemon@ATHENA.MIT.EDU (Omri Schwarz)
Tue May 20 18:06:39 2003

Message-Id: <200305202206.SAA15086@alice-whacker.mit.edu>
To: Kev <klmitch@MIT.EDU>
cc: "Omri Schwarz" <ocschwar@MIT.EDU>, testers@MIT.EDU, ocschwar@MIT.EDU
In-Reply-To: Your message of "Tue, 20 May 2003 18:03:57 EDT."
             <200305202203.SAA07700@multics.mit.edu> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Tue, 20 May 2003 18:06:37 -0400
From: Omri Schwarz <ocschwar@MIT.EDU>

> > Program received signal SIGINT, Interrupt.
> > 0xffffe002 in ?? ()
> > (gdb) where
> > #0  0xffffe002 in ?? ()
> > #1  0x0804834a in main () at test.c:8
> > #2  0x420156a4 in __libc_start_main () from /lib/tls/libc.so.6
> > (gdb) q
> > The program is running.  Exit anyway? (y or n) y
> > 
> > Something is very wrong here.
> 
> Nope, this is exactly what's supposed to happen.  GDB breaks before the
> signal is processed by the program.  If you did a "continue" here, the
> program would process the SIGINT and exit.

The something that is wrong is the lack of proper debugging symbols
for the foo() function. 

I ran into this in a much more complicated case (my
big blob of C code) where I could not use pause() to create
points for catching the process with GDB because I could 
not get a full stack frame. The call to pause() and the calling
function would both be lost. 




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