i've located the change that has broken this (in bfd):

2000-08-16  Andrew Macleod  <amacleod@cygnus.com>

	* elf64-sparc.c (sparc64_elf_relocate_section): Set relocation address
	for undefined symbols to be the beginning of the section.

	* elf64-sparc.c (sparc64_elf_adjust_dynamic_symbol): Don't allocate
	four extra entries at the beginning of the .rela.plt section.
	(sparc64_elf_finish_dynamic_symbol): Adjust the offset in the .rela.plt
	section to account for the four reserved entries in the .plt section.


part of the patch includes this comment:

	/* Adjust for the first 4 reserved elements in the .plt section
	   when setting the offset in the .rela.plt section.
	   Sun forgot to read their own ABI and copied elf32-sparc behaviour,
	   thus .plt[4] has corresponding .rela.plt[0] and so on.  */


so perhaps our ld.elf_so for sparc64 is wrong?


.mrg.


[ this is a reverse patch to `fix' our tree. ]


Index: elf64-sparc.c
===================================================================
RCS file: /cvsroot/gnusrc/gnu/dist/toolchain/bfd/elf64-sparc.c,v
retrieving revision 1.1.1.3
diff -p -r1.1.1.3 elf64-sparc.c
*** elf64-sparc.c	2001/04/23 12:25:27	1.1.1.3
--- elf64-sparc.c	2001/08/14 09:21:29
*************** sparc64_elf_adjust_dynamic_symbol (info,
*** 1553,1558 ****
--- 1553,1564 ----
        s = bfd_get_section_by_name (dynobj, ".rela.plt");
        BFD_ASSERT (s != NULL);
  
+       /* The first plt entries are reserved, and the relocations must
+ 	 pair up exactly.  */
+       if (s->_raw_size == 0)
+ 	s->_raw_size += (PLT_HEADER_SIZE/PLT_ENTRY_SIZE
+ 			 * sizeof (Elf64_External_Rela));
+ 
        s->_raw_size += sizeof (Elf64_External_Rela);
  
        /* The procedure linkage table size is bounded by the magnitude
*************** sparc64_elf_relocate_section (output_bfd
*** 2068,2081 ****
  		      (!info->shared || info->no_undefined
  		       || ELF_ST_VISIBILITY (h->other)))))
  		return false;
- 
- 	      /* To avoid generating warning messages about truncated
- 		 relocations, set the relocation's address to be the same as
- 		 the start of this section.  */
- 
- 	      if (input_section->output_section != NULL)
- 		relocation = input_section->output_section->vma;
- 	      else
  		relocation = 0;
  	    }
  	}
--- 2074,2079 ----
*************** sparc64_elf_finish_dynamic_symbol (outpu
*** 2691,2704 ****
        rela.r_offset += (splt->output_section->vma + splt->output_offset);
        rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
  
-       /* Adjust for the first 4 reserved elements in the .plt section
- 	 when setting the offset in the .rela.plt section.
- 	 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
- 	 thus .plt[4] has corresponding .rela.plt[0] and so on.  */
- 
        bfd_elf64_swap_reloca_out (output_bfd, &rela,
  				 ((Elf64_External_Rela *) srela->contents
! 				  + (h->plt.offset - 4)));
  
        if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
  	{
--- 2689,2697 ----
        rela.r_offset += (splt->output_section->vma + splt->output_offset);
        rela.r_info = ELF64_R_INFO (h->dynindx, R_SPARC_JMP_SLOT);
  
        bfd_elf64_swap_reloca_out (output_bfd, &rela,
  				 ((Elf64_External_Rela *) srela->contents
! 				  + h->plt.offset));
  
        if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
  	{