[AArch64] Cleanup TLS relocation types which don't go through GOT table

This patch done two types of cleanup:

  * in aarch64_reloc_got_type and elfNN_aarch64_relocate_section

    We don't need those redundant "case" check, as they can be merged
    with the "default" which just "break".

  * in elfNN_aarch64_gc_sweep_hook and elfNN_aarch64_check_relocs

    All TLS local executable relocations and some local dynamic
    relocations (those calculate module offset) actually don't need GOT
    entry, so remove them from GOT entry counting.

2015-08-18  Jiong Wang  <jiong.wang@arm.com>

bfd/
  * elfnn-aarch64.c (aarch64_reloc_got_type): Delete useless check.
  (elfNN_aarch64_relocate_section): Likewise.
  (elfNN_aarch64_gc_sweep_hook): Likewise.
  (elfNN_aarch64_check_relocs): Likewise.

2 files changed, 7 insertions, 37 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index a182d2f..14290ab 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2015-08-18  Jiong Wang  <jiong.wang@arm.com>
+
+	* elfnn-aarch64.c (aarch64_reloc_got_type): Delete useless check.
+	(elfNN_aarch64_relocate_section): Likewise.
+	(elfNN_aarch64_gc_sweep_hook): Likewise.
+	(elfNN_aarch64_check_relocs): Likewise.
+
 2015-08-18  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* bfd/aoutx.h: Replace shared, executable, relocatable and pie
diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
index 9773e3e..beedb70 100644
--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
@@ -4193,17 +4193,6 @@ aarch64_reloc_got_type (bfd_reloc_code_real_type r_type)
     case BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19:
       return GOT_TLS_IE;
 
-    case BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12:
-    case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
-    case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
-    case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
-    case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
-    case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
-    case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
-    case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
-    case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
-      return GOT_UNKNOWN;
-
     default:
       break;
     }
@@ -5710,16 +5699,6 @@ elfNN_aarch64_relocate_section (bfd *output_bfd,
 	    }
 	  break;
 
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
-	  break;
-
 	case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC:
 	case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
 	case BFD_RELOC_AARCH64_TLSDESC_ADR_PREL21:
@@ -6115,14 +6094,6 @@ elfNN_aarch64_gc_sweep_hook (bfd *abfd,
 	case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
 	case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
 	case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
 	  if (h != NULL)
 	    {
 	      if (h->got.refcount > 0)
@@ -6590,14 +6561,6 @@ elfNN_aarch64_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	case BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC:
 	case BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21:
 	case BFD_RELOC_AARCH64_TLSLD_ADR_PREL21:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
-	case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
-	case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
 	  {
 	    unsigned got_type;
 	    unsigned old_got_type;