From: Bertram Scharpf <lists@...>
Date: 2008-09-02T03:42:29+09:00
Subject: rb_require() causes segfault

Hi,


calling rb_require() with a file name that will not be found,
causes a segmentation fault to be raised:

  ruby: [BUG] Segmentation fault
  ruby 1.8.6 (2008-08-11) [i386-freebsd7]

  Abort trap: 6 (core dumped)

It's the same with Linux (both gcc). I googled and found some
answers that say: "Link with the -rdynamic flag." That did not
help.

Could anyone give me a hint what is going on here? At least a
point to a working example should suffice.

Thanks in advance,

Bertram


                           Here's my code:
----------------------------------------------------------------
#include <ruby.h>

VALUE call_require( VALUE name)
{
    if (0) rb_raise( rb_eStandardError, "don't do it");
    return rb_require( (char *) name);
}

VALUE rescue_require( VALUE data, VALUE err)
{
    printf("Error: [[[%s]]]\n", RSTRING(rb_obj_as_string(err))->ptr);
    return Qnil;
}

void sure_require( char *name)
{
    rb_rescue( &call_require, (VALUE) name, &rescue_require, Qnil);
}

int main( int argc, char *argv)
{
    ruby_init();
    ruby_init_loadpath();
    sure_require( "nonexistent");
    return 0;
}
----------------------------------------------------------------


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de