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Segfaults for dummies |
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Phlamethrower (22:37 2/6/2005)
monkeyson2 (23:05 2/6/2005)
Phlamethrower (23:14 2/6/2005)
monkeyson2 (23:50 2/6/2005)
Phlamethrower (23:57 2/6/2005)
jmb (00:48 3/6/2005)
Phlamethrower (01:10 3/6/2005)
Phlamethrower (13:11 3/6/2005)
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Jeffrey Lee |
Message #66313, posted by Phlamethrower at 22:37, 2/6/2005 |
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If I've compiled a program for *nix using GCC and it's segfaulting, is there any easy command line switch I can use when compiling to make the error report give me some useful information? (e.g. the name of the function that's going wrong)
Or will I have to mess around with a seperate debugger? |
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Phil Mellor |
Message #66315, posted by monkeyson2 at 23:05, 2/6/2005, in reply to message #66313 |
 Please don't let them make me be a monkey butler
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-mpoke-function-name ? |
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Jeffrey Lee |
Message #66316, posted by Phlamethrower at 23:14, 2/6/2005, in reply to message #66315 |
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cc1: error: invalid option `poke-function-name' |
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Phil Mellor |
Message #66317, posted by monkeyson2 at 23:50, 2/6/2005, in reply to message #66316 |
Please don't let them make me be a monkey butler
Posts: 12380
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I guess that's a RISC OS only thing. You want it for Unix? According to the posting guidelines, you should bugger off and ask somewhere more appropriate 
I'm afraid I can only suggest -g or significant amounts of printf now.  |
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Jeffrey Lee |
Message #66318, posted by Phlamethrower at 23:57, 2/6/2005, in reply to message #66317 |
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Baaaah!
Would be OK if it crashed when compiled for RISC OS |
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JMB |
Message #66319, posted by jmb at 00:48, 3/6/2005, in reply to message #66318 |
Member
Posts: 467
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The correct answer is:
$ gcc -g foo.c -o foo
$ gdb ./foo
(gdb) run
***SEGV***
(gdb) bt
The other tool you'll want to investigate is valgrind, which is the best debugging tool EVAR! |
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Jeffrey Lee |
Message #66320, posted by Phlamethrower at 01:10, 3/6/2005, in reply to message #66319 |
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ok, thanks 
*sits around waiting for cygwin to update* |
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Jeffrey Lee |
Message #66393, posted by Phlamethrower at 13:11, 3/6/2005, in reply to message #66320 |
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Posts: 15100
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Tsk, pesky strings getting placed in read only segments! |
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