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Re: accessing debug info from code
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Re: accessing debug info from code


  • Subject: Re: accessing debug info from code
  • From: Rick Altherr <email@hidden>
  • Date: Fri, 27 Jun 2008 20:13:26 -0700


On Jun 27, 2008, at 7:42 PM, lajos kamocsay wrote:

Hello,


Is there a way to get debug information from code?
I'd like to save the source code name, line being executed and the
call stack at certain points in the application while the program is running.



Thanks, -lajos



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A few ideas:
- Use __FILE__ and __LINE__ macros along with backtrace_symbols() from libSystem. This won't be 100% accurate and won't report objective-c methods.
- Use __FILE__ and __LINE__ macros along with backtrace(). Then run the addresses through atos. atos will read the debugging information from the binary and/or dSYM file. The backtrace is guaranteed to be accurate, but it should be close if you aren't using -fomit-frame- pointer.


--
Rick Altherr
Architecture and Performance Group
email@hidden


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