Hieu Le Trung wrote:
Hi,
I'm currently facing an issue with -Os and -O2 optimization level. My
program can be compiled with both case, but it's not stable for -Os
flag. It makes my application crash sometimes.
The overwhelming likelihood is that your program is buggy - overwriting
array bounds or accessing free'd memory. A small change in the memory or
stack layout of your prgoram (from -Os and -O2) can make your bug
visible or hide it. Run it through a memory debugger like Valgrind,
dmalloc, Electric Fence, etc.
Cheers,
Nicholas Sherlock
