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[Bug ld/10433] Latest ld fails to link ldconfig properly


From: hjl dot tools at gmail dot com
Subject: [Bug ld/10433] Latest ld fails to link ldconfig properly
Date: 31 Jul 2009 02:50:06 -0000

------- Additional Comments From hjl dot tools at gmail dot com  2009-07-31 
02:50 -------
(In reply to comment #20)
> 
> Comment #3 says the only difference between good and bad binaries was a
> .rela.plt relocation.  That would seem to indicate that the relocation is 
> being
> written once with the "good" symbol, then overwritten with the "bad" one, 
> when,
> as you claim, elf_backend_finish_dynamic_symbol is being called unexpectedly. 
> But that means you must have other bugs, since the "bad" symbol must have
> plt.offset != -1, which indicates it has a plt entry at the same location as 
> the
> "good" symbol!
> 

This patch:

Index: elf-ifunc.c
===================================================================
--- elf-ifunc.c (revision 6507)
+++ elf-ifunc.c (working copy)
@@ -193,6 +193,7 @@ _bfd_elf_allocate_ifunc_dyn_relocs (stru
          || h->got.refcount > 0)
        abort ();
       h->got.offset = (bfd_vma) -1;
+      h->plt.offset = (bfd_vma) -1;
       *head = NULL;
       return TRUE;
     }

seems to work. I will test it with glibc build.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10433

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