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[PATCH] Avoid ld.so segfaults on R_PPC64_DTPREL64 relocations

From: Jakub Jelinek <jakub at redhat dot com>
To: Ulrich Drepper <drepper at redhat dot com>
Cc: Glibc hackers <libc-hacker at sources dot redhat dot com>
Date: Tue, 17 Jun 2003 13:56:15 +0200
Subject: [PATCH] Avoid ld.so segfaults on R_PPC64_DTPREL64 relocations
Reply-to: Jakub Jelinek <jakub at redhat dot com>

Hi!

Found during prelink testing on ppc64.

2003-06-17  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela)
	<case R_PPC64_DTPREL64>: Don't segfault on undefined symbols.

--- libc/sysdeps/powerpc/powerpc64/dl-machine.h.jj	2003-06-16 14:26:29.000000000 -0400
+++ libc/sysdeps/powerpc/powerpc64/dl-machine.h	2003-06-17 05:42:16.000000000 -0400
@@ -653,7 +653,8 @@ elf_machine_rela (struct link_map *map,
       /* During relocation all TLS symbols are defined and used.
          Therefore the offset is already correct.  */
 # ifndef RTLD_BOOTSTRAP
-      *reloc_addr = TLS_DTPREL_VALUE (sym, reloc);
+      if (sym_map != NULL)
+	*reloc_addr = TLS_DTPREL_VALUE (sym, reloc);
 # endif
       return;
 

	Jakub

Follow-Ups:
- Re: [PATCH] Avoid ld.so segfaults on R_PPC64_DTPREL64 relocations
  - From: Ulrich Drepper

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