From: Lorien Dunn <loriend@...>
Date: 2002-09-12T08:50:04+09:00
Subject: Re: Bug in Ruby Ext to C or it is me ?

I bet you have compiled with stack-frame-pointer ommision turned on. This is done with -fomit-frame-pointer in gcc, and is the default with MSVC when you choose the "Maximise Speed" optimisation. Frame-pointer ommision does not work with ruby exceptions or threads.

Lorien Dunn


On Wed, 11 Sep 2002 00:14:13 +0900
weilljc@club-internet.fr (JCW) wrote:

> Compile this, link it with ruby lib, execute with a small
> ruby program like this one :
> 
>     puts "Hello World from main Ruby Thread"
> 
> And explain why there is a core dump !
> 
> -- jc
> 
> 
> #include <ruby.h>
> #include <unistd.h>
> 
> static VALUE request_thread (void * data)
> {
>    while (1) {
>     printf ("thread begin\n");
>     sleep(1);
>     printf("Thread end\n");
>     rb_thread_schedule();
>   }
>    return Qtrue;
> }
> 
> int main (int argc, char * argv[])
> { 
>    ruby_init();
>    ruby_options(argc, argv);
>    rb_thread_create (request_thread, NULL);
> 
>    ruby_run();
> 
>    return 0;
> }