Hi,
A program I wrote used a signal handler for SIGSEGV. I originally compiled it
without any extra flags. When any instruction in the program seg. faulted, it would
get a large no. of Segmentation fault signals (I checked with strace and ltrace), and
the program would exit. The same program, if compiled with optimization flags (-O2)
would work as expected. I tried compiling with both gcc and egcs under RH5.2 and egcs
in RH6.1. The program fragment is given below
jmp_buf env;
void seg_catch()
{
printf("<Seg. fault>\n");
longjmp(env, 1);
}
main()
{
...... /* Setup handlers etc. */
......
if (setjmp(env) == 0) {
....
<seg. faulting statements>
} else {
....
}
}
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