[PATCH v2] ARM: Add AArch32 support for gold linker.

[HC Yen]

elfcpp:
	* arm.h: Add TAG_CPU_ARCH_V8 in Tag_CPU_arch EABI attribute.

gold:
	* arm.cc: Add V8 arch combine table.
---
 elfcpp/arm.h |    3 ++-
 gold/arm.cc  |   23 ++++++++++++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/elfcpp/arm.h b/elfcpp/arm.h
index c9cb753..14109b9 100644
--- a/elfcpp/arm.h
+++ b/elfcpp/arm.h
@@ -248,7 +248,8 @@ enum
   TAG_CPU_ARCH_V6_M,
   TAG_CPU_ARCH_V6S_M,
   TAG_CPU_ARCH_V7E_M,
-  MAX_TAG_CPU_ARCH = TAG_CPU_ARCH_V7E_M,
+  TAG_CPU_ARCH_V8,
+  MAX_TAG_CPU_ARCH = TAG_CPU_ARCH_V8,
   // Pseudo-architecture to allow objects to be compatible with the subset of
   // armv4t and armv6-m.  This value should never be stored in object files.
   TAG_CPU_ARCH_V4T_PLUS_V6_M = (MAX_TAG_CPU_ARCH + 1)
diff --git a/gold/arm.cc b/gold/arm.cc
index f1d4fe9..5f6db41 100644
--- a/gold/arm.cc
+++ b/gold/arm.cc
@@ -10759,6 +10759,24 @@ Target_arm<big_endian>::tag_cpu_arch_combine(
       T(V7E_M),	// V6S_M.
       T(V7E_M)	// V7E_M.
     };
+  static const int v8[] =
+    {
+      T(V8),	// PRE_V4.
+      T(V8),	// V4.
+      T(V8),	// V4T.
+      T(V8),	// V5T.
+      T(V8),	// V5TE.
+      T(V8),	// V5TEJ.
+      T(V8),	// V6.
+      T(V8),	// V6KZ.
+      T(V8),	// V6T2.
+      T(V8),	// V6K.
+      T(V8),	// V7.
+      T(V8),	// V6_M.
+      T(V8),	// V6S_M.
+      T(V8),	// V7E_M.
+      T(V8)	// V8.
+    };
   static const int v4t_plus_v6_m[] =
     {
       -1,		// PRE_V4.
@@ -10775,6 +10793,7 @@ Target_arm<big_endian>::tag_cpu_arch_combine(
       T(V6_M),		// V6_M.
       T(V6S_M),		// V6S_M.
       T(V7E_M),		// V7E_M.
+      T(V8),		// V8.
       T(V4T_PLUS_V6_M)	// V4T plus V6_M.
     };
   static const int* comb[] =
@@ -10785,6 +10804,7 @@ Target_arm<big_endian>::tag_cpu_arch_combine(
       v6_m,
       v6s_m,
       v7e_m,
+      v8,
       // Pseudo-architecture.
       v4t_plus_v6_m
     };
@@ -10882,7 +10902,8 @@ Target_arm<big_endian>::tag_cpu_name_value(unsigned int value)
    "ARM v7",
    "ARM v6-M",
    "ARM v6S-M",
-   "ARM v7E-M"
+   "ARM v7E-M",
+   "ARM v8"
  };
  const size_t name_table_size = sizeof(name_table) / sizeof(name_table[0]);
 
-- 
1.7.9.5