From: Yukihiro Matsumoto <matz@...>
Date: 2007-11-23T11:30:09+09:00
Subject: Re: 1.8.6: gc.c and __builtin_frame_pointer

Hi,

In message "Re: 1.8.6: gc.c and __builtin_frame_pointer"
    on Fri, 23 Nov 2007 10:38:54 +0900, Jay Levitt <lists-ruby@shopwatch.org> writes:
|
|I'm playing with porting Ruby to Stratus VOS, which is an unusual but
|POSIX-supporting x86 platform.
|
|My first build problem was a crash in miniruby, in gc.c.  In a nutshell,
|gc.c is relying on __builtin_frame_pointer but is not setting
|-fno-omit-frame-pointer.  This causes a crash, but I'm not sure what the
|proper semantics of these two are and if I should (a) submit a patch for
|Ruby in autoconf, or (b) submit a patch to Stratus for a bug in their gcc
|implementation (currently at 3.3.1).

For the workaround, you can try specifying --disable-frame-address to
configure to see if it works.

We'd welcome a patch to specify -fno-omit-frame-pointer when GCC is
used on x86.

							matz.