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authorUlrich Drepper <drepper@redhat.com>2000-09-29 06:52:39 +0000
committerUlrich Drepper <drepper@redhat.com>2000-09-29 06:52:39 +0000
commit7c81011531448a126a640b45547abab2b1195465 (patch)
treec4418e4601be981ee71648b677ac9a0c04514ec0 /sysdeps/alpha
parent52d895a4ce96bba606fdc11619ae213a29fff4be (diff)
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Update.
2000-09-28  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/alpha/dl-machine.h (elf_machine_rela): Handle unaligned
	relocation also for R_ALPHA_RELATIVE.
	Reported by Ivan Kokshaysky <ink@jurassic.park.msu.ru>.
Diffstat (limited to 'sysdeps/alpha')
-rw-r--r--sysdeps/alpha/dl-machine.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index 33c32fa5e8..69845b4b01 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -482,7 +482,19 @@ elf_machine_rela (struct link_map *map,
       /* Already done in dynamic linker.  */
       if (map != &_dl_rtld_map)
 #endif
-	*reloc_addr += map->l_addr;
+	{
+	  /* XXX Make some timings.  Maybe it's preverable to test for
+	     unaligned access and only do it the complex way if necessary.  */
+	  void *reloc_addr_1 = reloc_addr;
+	  Elf64_Addr reloc_addr_val;
+
+	  /* Load value without causing unaligned trap. */
+	  memcpy (&reloc_addr_val, reloc_addr_1, 8);
+	  reloc_addr_val += map->l_addr;
+
+	  /* Store value without causing unaligned trap. */
+	  memcpy (reloc_addr_1, &reloc_addr_val, 8);
+	}
     }
   else if (r_type == R_ALPHA_NONE)
     return;