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Re: Help! program runs differently under debug than not
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Re: Help! program runs differently under debug than not


  • Subject: Re: Help! program runs differently under debug than not
  • From: Eric Albert <email@hidden>
  • Date: Wed, 21 Jun 2006 15:43:50 -0700

On Jun 21, 2006, at 3:31 PM, Rick Mann wrote:

On Jun 21, 2006, at 15:26 , Eric Albert wrote:

Someone described this earlier, but I'll try to make it a bit more clear. In the child, do something like this:

	int main(void) {
		static int foo = 0;
		while (foo == 0) {
			sleep(1);
		}
		...
	}

That'll cause the child to spin on startup. Attach with gdb, type 'p (foo = 1)' at the gdb prompt, and then go from there.

Yeah, it's more complicated than that. I basically have to do that in the child AND the parent, because the parent will time out in the time it takes me to do all that for the child. (Also, keep in mind that the child begins to execute on the return from fork(), not at main).

Ah...I figured you were doing a fork and exec, not a fork.

If I do go to all this trouble, will I get to debug the child in the GUI debugger, or will I have to do everything from the gdb command line?

I'm not sure...I don't use the GUI debugger. :)

-Eric

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References: 
 >Help! program runs differently under debug than not (From: Rick Mann <email@hidden>)
 >Re: Help! program runs differently under debug than not (From: Eric Albert <email@hidden>)
 >Re: Help! program runs differently under debug than not (From: Rick Mann <email@hidden>)

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