Re: gdb err
Re: gdb err
- Subject: Re: gdb err
- From: Jim Ingham <email@hidden>
- Date: Wed, 10 Mar 2004 09:41:45 -0800
On Mar 9, 2004, at 11:49 PM, email@hidden wrote:
When I build and debug an application with Xcode, the gdb "exit with
signal
11", but I can run the application in Xcode successfully, and if I use
gdb
on command line
such as gdb "myapp" and run it, everything is OK, can you tell me why?
Not without more information.
If gdb is crashing, there will be a crash log in
~/Library/Logs/CrashReporter/gdb-powerpc-apple-darwin.crash.log.
Another useful debugging aid is the gdb/Xcode communication log, which
you can get by doing:
1) Quit Xcode.
2) In Terminal, say:
$ defaults write com.apple.Xcode PBXGDBDebuggerLogToFile YES
3) Restart Xcode, and do whatever you need to to make it fail.
4) Look in /tmp/<YOUR UID>/TemporaryItems/
There will be a file there called something like:
PBGDB-<Project Name>-<Xcode UID>
which contains the transcript of the gdb/Xcode communications.
If you can file a bug with these two bits of information, and if
possible a sample project that shows the crash, we can probably figure
out what is going on.
I also see some yellow triangle with a "!" in the start of a line in
source code, and I cannot remove it? What does it mean?
That means there is a compiler warning on that line of code. If you
hover over the warning, it will tell you what the compiler is worried
about. All the warnings also show up in the build results panel as the
project is being built. To remove it you have to figure out why the
compiler thinks there is something wrong with your code & fix that.
Jim
--
Jim Ingham email@hidden
Developer Tools
Apple Computer
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