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Date: Wed, 30 Apr 2003 18:47:11 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: App w/excessive soft page faults
Message-ID: <20030430224711.GA2014@redhat.com>
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References: <Pine DOT GSO DOT 4 DOT 44 DOT 0304301654530 DOT 18331-100000 AT eos> <Pine DOT GSO DOT 4 DOT 44 DOT 0304301828180 DOT 25128-100000 AT slinky DOT cs DOT nyu DOT edu>
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On Wed, Apr 30, 2003 at 06:30:06PM -0400, Igor Pechtchanski wrote:
>On Wed, 30 Apr 2003, Brian Ford wrote:
>
>> Ok, I was able to find the stricmp calls by setting a break point in gdb.
>> They were coming from either wglMakeCurrent or wglSwapLayerBuffers.  I
>> can only vaguely imagine why these are causing page faults, though.
>>
>> Interstingly enough, "info function stricmp" returns:
>> 0x77f520c0  ntdll!_stricmp
>> 0x77f520c0  stricmp
>> 0x77c422a2  msvcrt!_stricmp
>> 0x77c422a2  stricmp
>>
>> Yet "break stricmp" or "break 'ntdll!_stricmp'" return:
>> Breakpoint 1 at 0x77f78f67
>>
>> Notice the address?  This is actually in tan().
>>
>> "break 'msvcrt!_stricmp'" returns the a more proper:
>> Breakpoint 1 at 0x77c422a7
>>
>> Incidentally, the one being used was the former.
>
>Try setting the breakpoint at the exact function address.  You will have
>to step through assembly, but since all you really want is a backtrace...

FWIW, you can do that with a "break *stricmp".

cgf

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