RE: What good is crash instruction pointer?

[Dave Gotwisner <Dave dot Gotwisner at harmonicinc dot com>]

Using NM, you can generate a link map sorted in lots of different ways,
including different types of information.  How useful this is in
troubleshooting a problem that someone else gave is limited.  About the only
thing you can really do is to figure out the function you are in.  If you
are ambitious, what you can do is have the SIGSEGV generate core.  Assuming
you have an identical version of the binary (and the source that generated
it) at your site, the user can send you the core file and you can then use
GDB on it to look at stack, variables, etc.

	Dave

-----Original Message-----
From: Robin Rowe [mailto:rower@MovieEditor.com]
Sent: Monday, September 29, 2003 11:02 PM
To: gcc-help@gcc.gnu.org
Subject: What good is crash instruction pointer?


Hi. I want my apps to keep a crash log that users can send in with bug
reports. I can use sigaction to catch the instruction pointer on SIGSEGV. My
question is can I do anything useful with that pointer address if a user
emails it to me?

Is there a map file I can generate that will tell me where in the source
code that pointer corresponds, what line of code the program choked on?

Thanks!

Robin
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