Re: Breakpoints not working
Re: Breakpoints not working
- Subject: Re: Breakpoints not working
- From: Jim Ingham <email@hidden>
- Date: Fri, 27 Feb 2004 11:26:27 -0800
Jim,
On Feb 26, 2004, at 6:20 PM, James J. Merkel wrote:
I know that questions have been asked in the past about breakpoints
not working in xcode -- however I still cannot get the debugger to
stop at any breakpoints. I am in development mode with the option set
to Generate Debug Symbols. I can see the breakpoint in the breakpoint
window. Still no effect.
If you interrupt the program once it is up and running and go to the
console and type:
(gdb) info break
do the breakpoints have reasonable seeming addresses. If the addresses
are all 0x0, then that means we couldn't resolve the symbols. If there
are addresses, but you are not hitting them, then something went wrong
in setting the breakpoints? I would have to have a look at the binary
to see what was going wrong in this case.
I tried using the console window to manually set the breakpoint in
gdb. However, the debugger doesn't recognize any file name that I
enter.
If you are using ZeroLink, that is expected behavior. With ZeroLink,
all your app code is in shared libraries that are loaded by dyld into
your executable as needed. Since they aren't directly linked to the
main executable stub, the debugger doesn't know about them until they
are actually loaded. There is another command in gdb: future-break (fb
for short) that you can use to set a breakpoint in code that hasn't yet
been loaded.
Jim
--
Jim Ingham email@hidden
Developer Tools
Apple Computer
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