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Re: Examining the Call Stack
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Re: Examining the Call Stack


  • Subject: Re: Examining the Call Stack
  • From: Bob Ippolito <email@hidden>
  • Date: Thu, 23 Dec 2004 19:54:01 -0500


On Dec 23, 2004, at 2:47 PM, Steven Kramer wrote:


Op 23-dec-04 om 17:36 heeft Herr Witten het volgende geschreven:

Don't. Pass an extra parameter (id sender?) instead.

I did not want to do this, but it seems to be the easiest route. I will probably go with this, since manually traversing the call stack does not seem to be a normal thing. I don't even know how to do it.


..but it's a little easier than that sounds, because the good folks of
cocoadev have already written the code.

Unfortunately, I cannot spend the time launching a subprocess. I had hoped for a more direct solution. Nevertheless, thank you very much.


you can always write a couple of tracing macro something like
#define TRACE_FUNC(x) NSLog(@"0x%x->%s", self, x);
then
void myfunc(int a ....) {
	TRACE_FUNC("myfunc")
	.....
}


You can probably get the source for atos from Apple's Darwin distributions. It may be a worthwhile download. Please let me know if you ever get this going...

You can also raise and catch an NSException, which you should be able to get a stack trace from (as addresses). If you're tracing specific IMPs or functions, it should be easy enough to get their addresses without resorting to looking at the symbol table directly. If not, you could look at the symbol tables directly in-process with the dyld APIs, see /usr/include/mach-o/*.h .. all of this stuff is pretty crazy though, it sounds like the wrong solution to a problem that you might not even have :)


-bob

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References: 
 >Re: Examining the Call Stack (From: Herr Witten <email@hidden>)
 >Re: Examining the Call Stack (From: Steven Kramer <email@hidden>)

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