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To: Jeffrey Hsu <hsu@freefall.freebsd.org>
Cc: current@freefall.freebsd.org, max@wide.ad.jp
Date: Wed, 09 Oct 1996 21:04:19 -0700
From: John Polstra <jdp@polstra.com>
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Thanks for the test program.  I found the problem in the dynamic linker.
It's this new code in dlsym():

        static void *   
__dlsym(fd, sym)        
        void    *fd;    
        char    *sym;   
{
        struct so_map   *smp = (struct so_map *)fd, *src_map = NULL;
        struct nzlist   *np; 
        long            addr;

        /*
         * Restrict search to passed map if dlopen()ed.
         */
        if (LM_PRIVATE(smp)->spd_flags & RTLD_DL)
                src_map = smp;

The code doesn't take into account the fact that "smp" can be NULL.  I
will commit a fix ASAP.

This could also (hopefully) be the cause of the core dumps that Masafumi
reported from running kaffe.

John
--
   John Polstra                                       jdp@polstra.com
   John D. Polstra & Co., Inc.                Seattle, Washington USA
   "Self-knowledge is always bad news."                 -- John Barth