Resolve size relocation against non-zero TLS symbol

bfd/

	* elf32-i386.c (elf_i386_allocate_dynrelocs): Clear pc_count for
	non-zero TLS symbol.
	(elf_i386_relocate_section): Resolve size relocation against
	non-zero TLS symbol.
	* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Clear pc_count
	for non-zero TLS symbol.
	(elf_x86_64_relocate_section): Resolve size relocation against
	non-zero TLS symbol.

ld/testsuite/

	* ld-size/size-10.rd: Updated.
	* ld-size/size-8.rd: Likewise.
	* ld-size/size32-2-i386.d: Likewise.
	* ld-size/size32-2-x32.d: Likewise.
	* ld-size/size32-2-x86-64.d: Likewise.
	* ld-size/size64-2-x32.d: Likewise.
	* ld-size/size64-2-x86-64.d: Likewise.

3 files changed, 59 insertions, 0 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 85b411a..e60c472 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,14 @@
+2013-01-18  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* elf32-i386.c (elf_i386_allocate_dynrelocs): Clear pc_count for
+	non-zero TLS symbol.
+	(elf_i386_relocate_section): Resolve size relocation against
+	non-zero TLS symbol.
+	* elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Clear pc_count
+	for non-zero TLS symbol.
+	(elf_x86_64_relocate_section): Resolve size relocation against
+	non-zero TLS symbol.
+
 2013-01-18  Mike Frysinger  <vapier@gentoo.org>
 
 	* elflink.c (bfd_elf_size_dynamic_sections): Only add DT_RPATH
diff --git a/bfd/elf32-i386.c b/bfd/elf32-i386.c
index f8ad1d1..01e50a4 100644
--- a/bfd/elf32-i386.c
+++ b/bfd/elf32-i386.c
@@ -2358,6 +2358,24 @@ elf_i386_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
   if (eh->dyn_relocs == NULL)
     return TRUE;
 
+  /* Since pc_count for TLS symbol can only have size relocations and
+     we always resolve size relocation against non-zero TLS symbol, we
+     clear pc_count for non-zero TLS symbol.  */
+  if (h->type == STT_TLS && h->size != 0)
+    {
+      struct elf_dyn_relocs **pp;
+
+      for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+	{
+	  p->count -= p->pc_count;
+	  p->pc_count = 0;
+	  if (p->count == 0)
+	    *pp = p->next;
+	  else
+	    pp = &p->next;
+	}
+    }
+
   /* In the shared -Bsymbolic case, discard space allocated for
      dynamic pc-relative relocs against symbols which turn out to be
      defined in regular objects.  For the normal shared case, discard
@@ -3691,6 +3709,12 @@ elf_i386_relocate_section (bfd *output_bfd,
 	case R_386_SIZE32:
 	  /* Set to symbol size.  */
 	  relocation = st_size;
+	  if (h && h->type == STT_TLS && st_size != 0)
+	    {
+	      /* Resolve size relocation against non-zero TLS symbol.  */
+	      unresolved_reloc = FALSE;
+	      break;
+	    }
 	  /* Fall through.  */
 
 	case R_386_32:
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c
index 79b6dc6..71f33e2 100644
--- a/bfd/elf64-x86-64.c
+++ b/bfd/elf64-x86-64.c
@@ -2400,6 +2400,24 @@ elf_x86_64_allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
   if (eh->dyn_relocs == NULL)
     return TRUE;
 
+  /* Since pc_count for TLS symbol can only have size relocations and
+     we always resolve size relocation against non-zero TLS symbol, we
+     clear pc_count for non-zero TLS symbol.  */
+  if (h->type == STT_TLS && h->size != 0)
+    {
+      struct elf_dyn_relocs **pp;
+
+      for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+	{
+	  p->count -= p->pc_count;
+	  p->pc_count = 0;
+	  if (p->count == 0)
+	    *pp = p->next;
+	  else
+	    pp = &p->next;
+	}
+    }
+
   /* In the shared -Bsymbolic case, discard space allocated for
      dynamic pc-relative relocs against symbols which turn out to be
      defined in regular objects.  For the normal shared case, discard
@@ -3687,6 +3705,12 @@ elf_x86_64_relocate_section (bfd *output_bfd,
 	case R_X86_64_SIZE64:
 	  /* Set to symbol size.  */
 	  relocation = st_size;
+	  if (h && h->type == STT_TLS && st_size != 0)
+	    {
+	      /* Resolve size relocation against non-zero TLS symbol.  */
+	      unresolved_reloc = FALSE;
+	      break;
+	    }
 	  goto direct;
 
 	case R_X86_64_PC8: