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Subject: Profiling with -pg and arguments to main() - GCC 4.1.0
To: djgpp AT delorie DOT com
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From: Gordon DOT Schumacher AT seagate DOT com
Date: Fri, 8 Dec 2006 14:03:36 -0700
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I've discovered a strange bug in applications compiled with the -pg switch
(at least with the setup I have).  The file test.c contains the following:

#include <stdio.h>
int main(int argc, char *argv[], char *envp[])
{
   printf("argc/argv/envp are at %p %p %p\n", &argc, &argv, &envp);
   return 0;
}

bash-2.05b $ gcc test.c -o test.exe && ./test.exe
argc/argv/envp are at 92c38 92c3c 92c40

bash-2.05b $ gcc test.c -o test.exe -pg && ./test.exe
argc/argv/envp are at 0 4 8


The culprit appears to be my GCC version: I'm running with v4.1.0.  If I
drop back to v4.0.1 it works fine.  I've tried both DJGPP v2.04 and
v2.03; this makes no difference (I am generally using v2.04).

So I'm not quite sure where to go from here in debugging... ideas?