From: Pixel <pixel@...>
Date: 2001-06-08T00:46:39+09:00
Subject: [ruby-talk:16307] -fomit-frame-pointer and segfault

When compiling with -fomit-frame-pointer, ruby segfaults with gcc-2.96 and 
gcc version 3.0 20010528:

pixel@no:~/rpm/BUILD/ruby-1.6.4>./miniruby 
Segmentation fault


The problem comes from:

Init_stack.c:1027:    rb_gc_stack_start = __builtin_frame_address(2);


As far as gcc's info page knows:
     (Getting the Return or Frame Address of a Function)

     On some machines it may be impossible to determine the return
     address of any function other than the current one; in such cases,
     or when the top of the stack has been reached, this function will
     return `0'.

     This function should only be used with a non-zero argument for
     debugging purposes.

So using __builtin_frame_address(2) seems not a good idea?


cu Pixel.