Support 64-bit entry size in SHT_HASH (for s390).

gold/
	* dynobj.cc (Dynobj::create_elf_hash_table): Create hash table with
	target-specific entry size.
	(Dynobj::sized_create_elf_hash_table): Add size template parameter.
	* dynobj.h (Dynobj::sized_create_elf_hash_table): Likewise.
	* layout.cc (Layout::create_dynamic_symtab): Set entsize to
	hash_entry_size.
	* target.h (Target::hash_entry_size): New method.
	(Target::Target_info::hash_entry_size): New data member.

	* aarch64.cc (Target_aarch64::aarch64_info): Add hash_entry_size.
	* arm.cc (Target_arm::arm_info): Likewise.
	(Target_arm_nacl::arm_nacl_info): Likewise.
	* i386.cc (Target_i386::i386_info): Likewise.
	(Target_i386_nacl::i386_nacl_info): Likewise.
	(Target_iamcu::iamcu_info): Likewise.
	* mips.cc (Target_mips::mips_info): Likewise.
	(Target_mips_nacl::mips_nacl_info): Likewise.
	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
	* sparc.cc (Target_sparc::sparc_info): Likewise.
	* tilegx.cc (Target_tilegx::tilegx_info): Likewise.
	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
	(Target_x86_64_nacl::x86_64_nacl_info): Likewise.
	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.

14 files changed, 134 insertions, 46 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index c3cf686..e4558a8 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,29 @@
+2015-10-28  Marcin Kościelnicki  <koriakin@0x04.net>
+
+	* dynobj.cc (Dynobj::create_elf_hash_table): Create hash table with
+	target-specific entry size.
+	(Dynobj::sized_create_elf_hash_table): Add size template parameter.
+	* dynobj.h (Dynobj::sized_create_elf_hash_table): Likewise.
+	* layout.cc (Layout::create_dynamic_symtab): Set entsize to
+	hash_entry_size.
+	* target.h (Target::hash_entry_size): New method.
+	(Target::Target_info::hash_entry_size): New data member.
+
+	* aarch64.cc (Target_aarch64::aarch64_info): Add hash_entry_size.
+	* arm.cc (Target_arm::arm_info): Likewise.
+	(Target_arm_nacl::arm_nacl_info): Likewise.
+	* i386.cc (Target_i386::i386_info): Likewise.
+	(Target_i386_nacl::i386_nacl_info): Likewise.
+	(Target_iamcu::iamcu_info): Likewise.
+	* mips.cc (Target_mips::mips_info): Likewise.
+	(Target_mips_nacl::mips_nacl_info): Likewise.
+	* powerpc.cc (Target_powerpc::powerpc_info): Likewise.
+	* sparc.cc (Target_sparc::sparc_info): Likewise.
+	* tilegx.cc (Target_tilegx::tilegx_info): Likewise.
+	* x86_64.cc (Target_x86_64::x86_64_info): Likewise.
+	(Target_x86_64_nacl::x86_64_nacl_info): Likewise.
+	* testsuite/testfile.cc (Target_test::test_target_info): Likewise.
+
 2015-10-28  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR gold/19177
diff --git a/gold/aarch64.cc b/gold/aarch64.cc
index 275d94c..2dcd620 100644
--- a/gold/aarch64.cc
+++ b/gold/aarch64.cc
@@ -3434,7 +3434,8 @@ const Target::Target_info Target_aarch64<64, false>::aarch64_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -3461,7 +3462,8 @@ const Target::Target_info Target_aarch64<32, false>::aarch64_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -3488,7 +3490,8 @@ const Target::Target_info Target_aarch64<64, true>::aarch64_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -3515,7 +3518,8 @@ const Target::Target_info Target_aarch64<32, true>::aarch64_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // Get the GOT section, creating it if necessary.
diff --git a/gold/arm.cc b/gold/arm.cc
index fa9fdb2..2795c94 100644
--- a/gold/arm.cc
+++ b/gold/arm.cc
@@ -2997,7 +2997,8 @@ const Target::Target_info Target_arm<big_endian>::arm_info =
   0,			// large_common_section_flags
   ".ARM.attributes",	// attributes_section
   "aeabi",		// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // Arm relocate functions class
@@ -12744,7 +12745,8 @@ const Target::Target_info Target_arm_nacl<big_endian>::arm_nacl_info =
   0,			// large_common_section_flags
   ".ARM.attributes",	// attributes_section
   "aeabi",		// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<bool big_endian>
diff --git a/gold/dynobj.cc b/gold/dynobj.cc
index 9ab6bf8..c4852a9 100644
--- a/gold/dynobj.cc
+++ b/gold/dynobj.cc
@@ -946,31 +946,59 @@ Dynobj::create_elf_hash_table(const std::vector<Symbol*>& dynsyms,
       bucket[bucketpos] = dynsym_index;
     }
 
+  int size = parameters->target().hash_entry_size();
   unsigned int hashlen = ((2
 			   + bucketcount
 			   + local_dynsym_count
 			   + dynsym_count)
-			  * 4);
+			  * size / 8);
   unsigned char* phash = new unsigned char[hashlen];
 
-  if (parameters->target().is_big_endian())
+  bool big_endian = parameters->target().is_big_endian();
+  if (size == 32)
     {
+      if (big_endian)
+	{
 #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG)
-      Dynobj::sized_create_elf_hash_table<true>(bucket, chain, phash,
-						hashlen);
+	  Dynobj::sized_create_elf_hash_table<32, true>(bucket, chain, phash,
+							hashlen);
 #else
-      gold_unreachable();
+	  gold_unreachable();
 #endif
+	}
+      else
+	{
+#if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE)
+	  Dynobj::sized_create_elf_hash_table<32, false>(bucket, chain, phash,
+							 hashlen);
+#else
+	  gold_unreachable();
+#endif
+	}
     }
-  else
+  else if (size == 64)
     {
+      if (big_endian)
+	{
+#if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG)
+	  Dynobj::sized_create_elf_hash_table<64, true>(bucket, chain, phash,
+							hashlen);
+#else
+	  gold_unreachable();
+#endif
+	}
+      else
+	{
 #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE)
-      Dynobj::sized_create_elf_hash_table<false>(bucket, chain, phash,
-						 hashlen);
+	  Dynobj::sized_create_elf_hash_table<64, false>(bucket, chain, phash,
+							 hashlen);
 #else
-      gold_unreachable();
+	  gold_unreachable();
 #endif
+	}
     }
+  else
+    gold_unreachable();
 
   *pphash = phash;
   *phashlen = hashlen;
@@ -978,7 +1006,7 @@ Dynobj::create_elf_hash_table(const std::vector<Symbol*>& dynsyms,
 
 // Fill in an ELF hash table.
 
-template<bool big_endian>
+template<int size, bool big_endian>
 void
 Dynobj::sized_create_elf_hash_table(const std::vector<uint32_t>& bucket,
 				    const std::vector<uint32_t>& chain,
@@ -990,21 +1018,21 @@ Dynobj::sized_create_elf_hash_table(const std::vector<uint32_t>& bucket,
   const unsigned int bucketcount = bucket.size();
   const unsigned int chaincount = chain.size();
 
-  elfcpp::Swap<32, big_endian>::writeval(p, bucketcount);
-  p += 4;
-  elfcpp::Swap<32, big_endian>::writeval(p, chaincount);
-  p += 4;
+  elfcpp::Swap<size, big_endian>::writeval(p, bucketcount);
+  p += size / 8;
+  elfcpp::Swap<size, big_endian>::writeval(p, chaincount);
+  p += size / 8;
 
   for (unsigned int i = 0; i < bucketcount; ++i)
     {
-      elfcpp::Swap<32, big_endian>::writeval(p, bucket[i]);
-      p += 4;
+      elfcpp::Swap<size, big_endian>::writeval(p, bucket[i]);
+      p += size / 8;
     }
 
   for (unsigned int i = 0; i < chaincount; ++i)
     {
-      elfcpp::Swap<32, big_endian>::writeval(p, chain[i]);
-      p += 4;
+      elfcpp::Swap<size, big_endian>::writeval(p, chain[i]);
+      p += size / 8;
     }
 
   gold_assert(static_cast<unsigned int>(p - phash) == hashlen);
diff --git a/gold/dynobj.h b/gold/dynobj.h
index c08c1de..9214266 100644
--- a/gold/dynobj.h
+++ b/gold/dynobj.h
@@ -132,7 +132,7 @@ class Dynobj : public Object
 		       bool for_gnu_hash_table);
 
   // Sized version of create_elf_hash_table.
-  template<bool big_endian>
+  template<int size, bool big_endian>
   static void
   sized_create_elf_hash_table(const std::vector<uint32_t>& bucket,
 			      const std::vector<uint32_t>& chain,
diff --git a/gold/i386.cc b/gold/i386.cc
index 4c18de0..386de03 100644
--- a/gold/i386.cc
+++ b/gold/i386.cc
@@ -898,7 +898,8 @@ const Target::Target_info Target_i386::i386_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // Get the GOT section, creating it if necessary.
@@ -4084,7 +4085,8 @@ const Target::Target_info Target_i386_nacl::i386_nacl_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 #define	NACLMASK	0xe0            // 32-byte alignment mask
@@ -4320,7 +4322,8 @@ const Target::Target_info Target_iamcu::iamcu_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 class Target_selector_iamcu : public Target_selector
diff --git a/gold/layout.cc b/gold/layout.cc
index b454c10..ad92fcc 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -4409,7 +4409,7 @@ Layout::create_dynamic_symtab(const Input_objects* input_objects,
 	{
 	  if (dynsym != NULL)
 	    hashsec->set_link_section(dynsym);
-	  hashsec->set_entsize(4);
+	  hashsec->set_entsize(parameters->target().hash_entry_size() / 8);
 	}
 
       if (odyn != NULL)
diff --git a/gold/mips.cc b/gold/mips.cc
index 01cf33f..6cfe924 100644
--- a/gold/mips.cc
+++ b/gold/mips.cc
@@ -10490,7 +10490,8 @@ const Target::Target_info Target_mips<size, big_endian>::mips_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                 // attributes_vendor
-  "__start"		// entry_symbol_name
+  "__start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<int size, bool big_endian>
@@ -10529,7 +10530,8 @@ const Target::Target_info Target_mips_nacl<size, big_endian>::mips_nacl_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                 // attributes_vendor
-  "_start"              // entry_symbol_name
+  "_start",             // entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // Target selector for Mips.  Note this is never instantiated directly.
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 80f9e33..28bcd56 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -1352,7 +1352,8 @@ Target::Target_info Target_powerpc<32, true>::powerpc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -1379,7 +1380,8 @@ Target::Target_info Target_powerpc<32, false>::powerpc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -1406,7 +1408,8 @@ Target::Target_info Target_powerpc<64, true>::powerpc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -1433,7 +1436,8 @@ Target::Target_info Target_powerpc<64, false>::powerpc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 inline bool
diff --git a/gold/sparc.cc b/gold/sparc.cc
index db845b7..fc0dc81 100644
--- a/gold/sparc.cc
+++ b/gold/sparc.cc
@@ -482,7 +482,8 @@ Target::Target_info Target_sparc<32, true>::sparc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -509,7 +510,8 @@ Target::Target_info Target_sparc<64, true>::sparc_info =
   0,			// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // We have to take care here, even when operating in little-endian
diff --git a/gold/target.h b/gold/target.h
index dfbc5ee..db093b7 100644
--- a/gold/target.h
+++ b/gold/target.h
@@ -455,6 +455,11 @@ class Target
   entry_symbol_name() const
   { return this->pti_->entry_symbol_name; }
 
+  // Return the size in bits of SHT_HASH entry.
+  int
+  hash_entry_size() const
+  { return this->pti_->hash_entry_size; }
+
   // Whether the target has a custom set_dynsym_indexes method.
   bool
   has_custom_set_dynsym_indexes() const
@@ -540,6 +545,9 @@ class Target
     const char* attributes_vendor;
     // Name of the main entry point to the program.
     const char* entry_symbol_name;
+    // Size (in bits) of SHT_HASH entry. Always equal to 32, except for
+    // 64-bit S/390.
+    const int hash_entry_size;
   };
 
   Target(const Target_info* pti)
diff --git a/gold/testsuite/testfile.cc b/gold/testsuite/testfile.cc
index c67caff..2e7f40c 100644
--- a/gold/testsuite/testfile.cc
+++ b/gold/testsuite/testfile.cc
@@ -108,7 +108,8 @@ const Target::Target_info Target_test<size, big_endian>::test_target_info =
   0,					// large_common_section_flags
   NULL,					// attributes_section
   NULL,					// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",				// entry_symbol_name
+  32,					// hash_entry_size
 };
 
 // The test targets.
diff --git a/gold/tilegx.cc b/gold/tilegx.cc
index 5d97271..ce449a4 100644
--- a/gold/tilegx.cc
+++ b/gold/tilegx.cc
@@ -680,7 +680,8 @@ const Target::Target_info Target_tilegx<64, false>::tilegx_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                 // attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -707,7 +708,8 @@ const Target::Target_info Target_tilegx<32, false>::tilegx_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                 // attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -734,7 +736,8 @@ const Target::Target_info Target_tilegx<64, true>::tilegx_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                 // attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -761,7 +764,8 @@ const Target::Target_info Target_tilegx<32, true>::tilegx_info =
   0,                    // large_common_section_flags
   NULL,                 // attributes_section
   NULL,                  // attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // tilegx relocation handlers
diff --git a/gold/x86_64.cc b/gold/x86_64.cc
index c728a00..d637b5e 100644
--- a/gold/x86_64.cc
+++ b/gold/x86_64.cc
@@ -1052,7 +1052,8 @@ const Target::Target_info Target_x86_64<64>::x86_64_info =
   elfcpp::SHF_X86_64_LARGE,	// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -1079,7 +1080,8 @@ const Target::Target_info Target_x86_64<32>::x86_64_info =
   elfcpp::SHF_X86_64_LARGE,	// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 // This is called when a new output section is created.  This is where
@@ -4818,7 +4820,8 @@ const Target::Target_info Target_x86_64_nacl<64>::x86_64_nacl_info =
   elfcpp::SHF_X86_64_LARGE,	// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 template<>
@@ -4845,7 +4848,8 @@ const Target::Target_info Target_x86_64_nacl<32>::x86_64_nacl_info =
   elfcpp::SHF_X86_64_LARGE,	// large_common_section_flags
   NULL,			// attributes_section
   NULL,			// attributes_vendor
-  "_start"		// entry_symbol_name
+  "_start",		// entry_symbol_name
+  32,			// hash_entry_size
 };
 
 #define	NACLMASK	0xe0            // 32-byte alignment mask.