Fixes to powerpc64 gold ELFv2 support

	* powerpc.cc (Target_powerpc::glink_section): Provide non-const
	accessor.
	(Target_powerpc::Branch_info::make_stub): Make global entry stubs.
	Only call ppc64_local_entry_offset for 64-bit.  Restrict
	symval_for_branch lookup to ELFv1.
	(Stub_table::add_plt_call_entry): Use unsigned int off.
	(Output_data_glink::Address, invalid_address): New.
	(Output_data_glink::add_eh_frame): Move out of line.  Add
	support for ELFv2.
	(Output_data_glink::add_global_entry, find_global_entry,
	global_entry_address): New functions.
	(Output_data_glink::global_entry_stubs_, end_branch_table_,
	ge_size): New variables.
	(Output_data_glink::set_final_data_size): Add global entry
	stub sizing.
	(Output_data_glink::do_write): Write global entry stubs.
	(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Add target
	parameter.  Return true for ELFv2.  Adjust callers.
	(Target_powerpc::Scan::local, global): Restrict opd lookup to
	ELFv1.  Similarly for ifunc and dynamic relocation processing
	specific to ELFv1.  Recognize that symbols are defined on
	their plt entries for ELFv2.
	(Target_powerpc::symval_for_branch): Assert if called for
	ELFv2 or ppc32.
	(Target_powerpc::Relocate::relocate): Use global entry plt
	stub for symbol value if such exists on ELFv2.
	(Target_powerpc::Relocate::relocate): Don't call
	symval_for_branch when ELFv2.  Do adjust for local entry
	offset when ELFv2.
	(Target_powerpc::do_dynsym_value): Set symbols to global entry
	plt stub for ELFv2.
	(Target_powerpc::do_plt_address_for_global): Similarly.

2 files changed, 350 insertions, 154 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index d953d70..14e2824 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,38 @@
+2013-11-15  Alan Modra  <amodra@gmail.com>
+
+	* powerpc.cc (Target_powerpc::glink_section): Provide non-const
+	accessor.
+	(Target_powerpc::Branch_info::make_stub): Make global entry stubs.
+	Only call ppc64_local_entry_offset for 64-bit.  Restrict
+	symval_for_branch lookup to ELFv1.
+	(Stub_table::add_plt_call_entry): Use unsigned int off.
+	(Output_data_glink::Address, invalid_address): New.
+	(Output_data_glink::add_eh_frame): Move out of line.  Add
+	support for ELFv2.
+	(Output_data_glink::add_global_entry, find_global_entry,
+	global_entry_address): New functions.
+	(Output_data_glink::global_entry_stubs_, end_branch_table_,
+	ge_size): New variables.
+	(Output_data_glink::set_final_data_size): Add global entry
+	stub sizing.
+	(Output_data_glink::do_write): Write global entry stubs.
+	(Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Add target
+	parameter.  Return true for ELFv2.  Adjust callers.
+	(Target_powerpc::Scan::local, global): Restrict opd lookup to
+	ELFv1.  Similarly for ifunc and dynamic relocation processing
+	specific to ELFv1.  Recognize that symbols are defined on
+	their plt entries for ELFv2.
+	(Target_powerpc::symval_for_branch): Assert if called for
+	ELFv2 or ppc32.
+	(Target_powerpc::Relocate::relocate): Use global entry plt
+	stub for symbol value if such exists on ELFv2.
+	(Target_powerpc::Relocate::relocate): Don't call
+	symval_for_branch when ELFv2.  Do adjust for local entry
+	offset when ELFv2.
+	(Target_powerpc::do_dynsym_value): Set symbols to global entry
+	plt stub for ELFv2.
+	(Target_powerpc::do_plt_address_for_global): Similarly.
+
 2013-11-14  Cary Coutant  <ccoutant@google.com>
 
 	Revert patch -- this did not fix the problem, and there is
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index ada4d0c..1aa4791 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -687,6 +687,13 @@ class Target_powerpc : public Sized_target<size, big_endian>
     return this->glink_;
   }
 
+  Output_data_glink<size, big_endian>*
+  glink_section()
+  {
+    gold_assert(this->glink_ != NULL);
+    return this->glink_;
+  }
+
   bool has_glink() const
   { return this->glink_ != NULL; }
 
@@ -974,7 +981,8 @@ class Target_powerpc : public Sized_target<size, big_endian>
     }
 
     static bool
-    reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>* object,
+    reloc_needs_plt_for_ifunc(Target_powerpc<size, big_endian>* target,
+			      Sized_relobj_file<size, big_endian>* object,
 			      unsigned int r_type, bool report_err);
 
   private:
@@ -2530,20 +2538,29 @@ Target_powerpc<size, big_endian>::Branch_info::make_stub(
       ? gsym->use_plt_offset(Scan::get_reference_flags(this->r_type_, target))
       : this->object_->local_has_plt_offset(this->r_sym_))
     {
-      if (stub_table == NULL)
-	stub_table = this->object_->stub_table(this->shndx_);
-      if (stub_table == NULL)
+      if (size == 64
+	  && gsym != NULL
+	  && target->abiversion() >= 2
+	  && !parameters->options().output_is_position_independent()
+	  && !is_branch_reloc(this->r_type_))
+	target->glink_section()->add_global_entry(gsym);
+      else
 	{
-	  // This is a ref from a data section to an ifunc symbol.
-	  stub_table = ifunc_stub_table;
+	  if (stub_table == NULL)
+	    stub_table = this->object_->stub_table(this->shndx_);
+	  if (stub_table == NULL)
+	    {
+	      // This is a ref from a data section to an ifunc symbol.
+	      stub_table = ifunc_stub_table;
+	    }
+	  gold_assert(stub_table != NULL);
+	  if (gsym != NULL)
+	    stub_table->add_plt_call_entry(this->object_, gsym,
+					   this->r_type_, this->addend_);
+	  else
+	    stub_table->add_plt_call_entry(this->object_, this->r_sym_,
+					   this->r_type_, this->addend_);
 	}
-      gold_assert(stub_table != NULL);
-      if (gsym != NULL)
-	stub_table->add_plt_call_entry(this->object_, gsym,
-				       this->r_type_, this->addend_);
-      else
-	stub_table->add_plt_call_entry(this->object_, this->r_sym_,
-				       this->r_type_, this->addend_);
     }
   else
     {
@@ -2590,7 +2607,8 @@ Target_powerpc<size, big_endian>::Branch_info::make_stub(
 	  to = symtab->compute_final_value<size>(gsym, &status);
 	  if (status != Symbol_table::CFVS_OK)
 	    return;
-	  to += this->object_->ppc64_local_entry_offset(gsym);
+	  if (size == 64)
+	    to += this->object_->ppc64_local_entry_offset(gsym);
 	}
       else
 	{
@@ -2605,12 +2623,13 @@ Target_powerpc<size, big_endian>::Branch_info::make_stub(
 	      || !symval.has_output_value())
 	    return;
 	  to = symval.value(this->object_, 0);
-	  to += this->object_->ppc64_local_entry_offset(this->r_sym_);
+	  if (size == 64)
+	    to += this->object_->ppc64_local_entry_offset(this->r_sym_);
 	}
       to += this->addend_;
       if (stub_table == NULL)
 	stub_table = this->object_->stub_table(this->shndx_);
-      if (size == 64 && is_branch_reloc(this->r_type_))
+      if (size == 64 && target->abiversion() < 2)
 	{
 	  unsigned int dest_shndx;
 	  to = target->symval_for_branch(symtab, to, gsym,
@@ -3036,6 +3055,7 @@ static const uint32_t ld_11_2		= 0xe9620000;
 static const uint32_t ld_11_11		= 0xe96b0000;
 static const uint32_t ld_12_2		= 0xe9820000;
 static const uint32_t ld_12_11		= 0xe98b0000;
+static const uint32_t ld_12_12		= 0xe98c0000;
 static const uint32_t lfd_0_1		= 0xc8010000;
 static const uint32_t li_0_0		= 0x38000000;
 static const uint32_t li_12_0		= 0x39800000;
@@ -3802,7 +3822,7 @@ Stub_table<size, big_endian>::add_plt_call_entry(
     Address addend)
 {
   Plt_stub_ent ent(object, gsym, r_type, addend);
-  Address off = this->plt_size_;
+  unsigned int off = this->plt_size_;
   std::pair<typename Plt_stub_entries::iterator, bool> p
     = this->plt_call_stubs_.insert(std::make_pair(ent, off));
   if (p.second)
@@ -3818,7 +3838,7 @@ Stub_table<size, big_endian>::add_plt_call_entry(
     Address addend)
 {
   Plt_stub_ent ent(object, locsym_index, r_type, addend);
-  Address off = this->plt_size_;
+  unsigned int off = this->plt_size_;
   std::pair<typename Plt_stub_entries::iterator, bool> p
     = this->plt_call_stubs_.insert(std::make_pair(ent, off));
   if (p.second)
@@ -3913,50 +3933,30 @@ template<int size, bool big_endian>
 class Output_data_glink : public Output_section_data
 {
  public:
+  typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
+  static const Address invalid_address = static_cast<Address>(0) - 1;
   static const int pltresolve_size = 16*4;
 
   Output_data_glink(Target_powerpc<size, big_endian>* targ)
-    : Output_section_data(16), targ_(targ)
+    : Output_section_data(16), targ_(targ), global_entry_stubs_(),
+      end_branch_table_(), ge_size_(0)
   { }
 
   void
-  add_eh_frame(Layout* layout)
-  {
-    if (!parameters->options().ld_generated_unwind_info())
-      return;
+  add_eh_frame(Layout* layout);
 
-    if (size == 64)
-      {
-	if (this->targ_->abiversion() < 2)
-	  layout->add_eh_frame_for_plt(this,
-				       Eh_cie<64>::eh_frame_cie,
-				       sizeof (Eh_cie<64>::eh_frame_cie),
-				       glink_eh_frame_fde_64v1,
-				       sizeof (glink_eh_frame_fde_64v1));
-	else
-	  layout->add_eh_frame_for_plt(this,
-				       Eh_cie<64>::eh_frame_cie,
-				       sizeof (Eh_cie<64>::eh_frame_cie),
-				       glink_eh_frame_fde_64v2,
-				       sizeof (glink_eh_frame_fde_64v2));
-      }
-    else
-      {
-	// 32-bit .glink can use the default since the CIE return
-	// address reg, LR, is valid.
-	layout->add_eh_frame_for_plt(this,
-				     Eh_cie<32>::eh_frame_cie,
-				     sizeof (Eh_cie<32>::eh_frame_cie),
-				     default_fde,
-				     sizeof (default_fde));
-	// Except where LR is used in a PIC __glink_PLTresolve.
-	if (parameters->options().output_is_position_independent())
-	  layout->add_eh_frame_for_plt(this,
-				       Eh_cie<32>::eh_frame_cie,
-				       sizeof (Eh_cie<32>::eh_frame_cie),
-				       glink_eh_frame_fde_32,
-				       sizeof (glink_eh_frame_fde_32));
-      }
+  void
+  add_global_entry(const Symbol*);
+
+  Address
+  find_global_entry(const Symbol*) const;
+
+  Address
+  global_entry_address() const
+  {
+    gold_assert(this->is_data_size_valid());
+    unsigned int global_entry_off = (this->end_branch_table_ + 15) & -16;
+    return this->address() + global_entry_off;
   }
 
  protected:
@@ -3975,10 +3975,76 @@ class Output_data_glink : public Output_section_data
 
   // Allows access to .got and .plt for do_write.
   Target_powerpc<size, big_endian>* targ_;
+
+  // Map sym to stub offset.
+  typedef Unordered_map<const Symbol*, unsigned int> Global_entry_stub_entries;
+  Global_entry_stub_entries global_entry_stubs_;
+
+  unsigned int end_branch_table_, ge_size_;
 };
 
 template<int size, bool big_endian>
 void
+Output_data_glink<size, big_endian>::add_eh_frame(Layout* layout)
+{
+  if (!parameters->options().ld_generated_unwind_info())
+    return;
+
+  if (size == 64)
+    {
+      if (this->targ_->abiversion() < 2)
+	layout->add_eh_frame_for_plt(this,
+				     Eh_cie<64>::eh_frame_cie,
+				     sizeof (Eh_cie<64>::eh_frame_cie),
+				     glink_eh_frame_fde_64v1,
+				     sizeof (glink_eh_frame_fde_64v1));
+      else
+	layout->add_eh_frame_for_plt(this,
+				     Eh_cie<64>::eh_frame_cie,
+				     sizeof (Eh_cie<64>::eh_frame_cie),
+				     glink_eh_frame_fde_64v2,
+				     sizeof (glink_eh_frame_fde_64v2));
+    }
+  else
+    {
+      // 32-bit .glink can use the default since the CIE return
+      // address reg, LR, is valid.
+      layout->add_eh_frame_for_plt(this,
+				   Eh_cie<32>::eh_frame_cie,
+				   sizeof (Eh_cie<32>::eh_frame_cie),
+				   default_fde,
+				   sizeof (default_fde));
+      // Except where LR is used in a PIC __glink_PLTresolve.
+      if (parameters->options().output_is_position_independent())
+	layout->add_eh_frame_for_plt(this,
+				     Eh_cie<32>::eh_frame_cie,
+				     sizeof (Eh_cie<32>::eh_frame_cie),
+				     glink_eh_frame_fde_32,
+				     sizeof (glink_eh_frame_fde_32));
+    }
+}
+
+template<int size, bool big_endian>
+void
+Output_data_glink<size, big_endian>::add_global_entry(const Symbol* gsym)
+{
+  std::pair<typename Global_entry_stub_entries::iterator, bool> p
+    = this->global_entry_stubs_.insert(std::make_pair(gsym, this->ge_size_));
+  if (p.second)
+    this->ge_size_ += 16;
+}
+
+template<int size, bool big_endian>
+typename Output_data_glink<size, big_endian>::Address
+Output_data_glink<size, big_endian>::find_global_entry(const Symbol* gsym) const
+{
+  typename Global_entry_stub_entries::const_iterator p
+    = this->global_entry_stubs_.find(gsym);
+  return p == this->global_entry_stubs_.end() ? invalid_address : p->second;
+}
+
+template<int size, bool big_endian>
+void
 Output_data_glink<size, big_endian>::set_final_data_size()
 {
   unsigned int count = this->targ_->plt_entry_count();
@@ -4008,6 +4074,9 @@ Output_data_glink<size, big_endian>::set_final_data_size()
 	    }
 	}
     }
+  this->end_branch_table_ = total;
+  total = (total + 15) & -16;
+  total += this->ge_size_;
 
   this->set_data_size(total);
 }
@@ -4341,64 +4410,101 @@ Output_data_glink<size, big_endian>::do_write(Output_file* of)
 
   if (size == 64)
     {
-      // Write pltresolve stub.
-      p = oview;
-      Address after_bcl = this->address() + 16;
-      Address pltoff = plt_base - after_bcl;
-
-      elfcpp::Swap<64, big_endian>::writeval(p, pltoff),	p += 8;
-
-      if (this->targ_->abiversion() < 2)
-	{
-	  write_insn<big_endian>(p, mflr_12),			p += 4;
-	  write_insn<big_endian>(p, bcl_20_31),			p += 4;
-	  write_insn<big_endian>(p, mflr_11),			p += 4;
-	  write_insn<big_endian>(p, ld_2_11 + l(-16)),		p += 4;
-	  write_insn<big_endian>(p, mtlr_12),			p += 4;
-	  write_insn<big_endian>(p, add_11_2_11),		p += 4;
-	  write_insn<big_endian>(p, ld_12_11 + 0),		p += 4;
-	  write_insn<big_endian>(p, ld_2_11 + 8),		p += 4;
-	  write_insn<big_endian>(p, mtctr_12),			p += 4;
-	  write_insn<big_endian>(p, ld_11_11 + 16),		p += 4;
-	}
-      else
+      if (this->end_branch_table_ != 0)
 	{
-	  write_insn<big_endian>(p, mflr_0),			p += 4;
-	  write_insn<big_endian>(p, bcl_20_31),			p += 4;
-	  write_insn<big_endian>(p, mflr_11),			p += 4;
-	  write_insn<big_endian>(p, ld_2_11 + l(-16)),		p += 4;
-	  write_insn<big_endian>(p, mtlr_0),			p += 4;
-	  write_insn<big_endian>(p, sub_12_12_11),		p += 4;
-	  write_insn<big_endian>(p, add_11_2_11),		p += 4;
-	  write_insn<big_endian>(p, addi_0_12 + l(-48)),	p += 4;
-	  write_insn<big_endian>(p, ld_12_11 + 0),		p += 4;
-	  write_insn<big_endian>(p, srdi_0_0_2),		p += 4;
-	  write_insn<big_endian>(p, mtctr_12),			p += 4;
-	  write_insn<big_endian>(p, ld_11_11 + 8),		p += 4;
-	}
-      write_insn<big_endian>(p, bctr),				p += 4;
-      while (p < oview + this->pltresolve_size)
-	write_insn<big_endian>(p, nop), p += 4;
+	  // Write pltresolve stub.
+	  p = oview;
+	  Address after_bcl = this->address() + 16;
+	  Address pltoff = plt_base - after_bcl;
+
+	  elfcpp::Swap<64, big_endian>::writeval(p, pltoff),	p += 8;
 
-      // Write lazy link call stubs.
-      uint32_t indx = 0;
-      while (p < oview + oview_size)
-	{
 	  if (this->targ_->abiversion() < 2)
 	    {
-	      if (indx < 0x8000)
-		{
-		  write_insn<big_endian>(p, li_0_0 + indx),		p += 4;
-		}
-	      else
+	      write_insn<big_endian>(p, mflr_12),		p += 4;
+	      write_insn<big_endian>(p, bcl_20_31),		p += 4;
+	      write_insn<big_endian>(p, mflr_11),		p += 4;
+	      write_insn<big_endian>(p, ld_2_11 + l(-16)),	p += 4;
+	      write_insn<big_endian>(p, mtlr_12),		p += 4;
+	      write_insn<big_endian>(p, add_11_2_11),		p += 4;
+	      write_insn<big_endian>(p, ld_12_11 + 0),		p += 4;
+	      write_insn<big_endian>(p, ld_2_11 + 8),		p += 4;
+	      write_insn<big_endian>(p, mtctr_12),		p += 4;
+	      write_insn<big_endian>(p, ld_11_11 + 16),		p += 4;
+	    }
+	  else
+	    {
+	      write_insn<big_endian>(p, mflr_0),		p += 4;
+	      write_insn<big_endian>(p, bcl_20_31),		p += 4;
+	      write_insn<big_endian>(p, mflr_11),		p += 4;
+	      write_insn<big_endian>(p, ld_2_11 + l(-16)),	p += 4;
+	      write_insn<big_endian>(p, mtlr_0),		p += 4;
+	      write_insn<big_endian>(p, sub_12_12_11),		p += 4;
+	      write_insn<big_endian>(p, add_11_2_11),		p += 4;
+	      write_insn<big_endian>(p, addi_0_12 + l(-48)),	p += 4;
+	      write_insn<big_endian>(p, ld_12_11 + 0),		p += 4;
+	      write_insn<big_endian>(p, srdi_0_0_2),		p += 4;
+	      write_insn<big_endian>(p, mtctr_12),		p += 4;
+	      write_insn<big_endian>(p, ld_11_11 + 8),		p += 4;
+	    }
+	  write_insn<big_endian>(p, bctr),			p += 4;
+	  while (p < oview + this->pltresolve_size)
+	    write_insn<big_endian>(p, nop), p += 4;
+
+	  // Write lazy link call stubs.
+	  uint32_t indx = 0;
+	  while (p < oview + this->end_branch_table_)
+	    {
+	      if (this->targ_->abiversion() < 2)
 		{
-		  write_insn<big_endian>(p, lis_0_0 + hi(indx)),	p += 4;
-		  write_insn<big_endian>(p, ori_0_0_0 + l(indx)),	p += 4;
+		  if (indx < 0x8000)
+		    {
+		      write_insn<big_endian>(p, li_0_0 + indx),		p += 4;
+		    }
+		  else
+		    {
+		      write_insn<big_endian>(p, lis_0_0 + hi(indx)),	p += 4;
+		      write_insn<big_endian>(p, ori_0_0_0 + l(indx)),	p += 4;
+		    }
 		}
+	      uint32_t branch_off = 8 - (p - oview);
+	      write_insn<big_endian>(p, b + (branch_off & 0x3fffffc)),	p += 4;
+	      indx++;
 	    }
-	  uint32_t branch_off = 8 - (p - oview);
-	  write_insn<big_endian>(p, b + (branch_off & 0x3fffffc)),	p += 4;
-	  indx++;
+	}
+
+      Address plt_base = this->targ_->plt_section()->address();
+      Address iplt_base = invalid_address;
+      unsigned int global_entry_off = (this->end_branch_table_ + 15) & -16;
+      Address global_entry_base = this->address() + global_entry_off;
+      typename Global_entry_stub_entries::const_iterator ge;
+      for (ge = this->global_entry_stubs_.begin();
+	   ge != this->global_entry_stubs_.end();
+	   ++ge)
+	{
+	  p = oview + global_entry_off + ge->second;
+	  Address plt_addr = ge->first->plt_offset();
+	  if (ge->first->type() == elfcpp::STT_GNU_IFUNC
+	      && ge->first->can_use_relative_reloc(false))
+	    {
+	      if (iplt_base == invalid_address)
+		iplt_base = this->targ_->iplt_section()->address();
+	      plt_addr += iplt_base;
+	    }
+	  else
+	    plt_addr += plt_base;
+	  Address my_addr = global_entry_base + ge->second;
+	  Address off = plt_addr - my_addr;
+
+	  if (off + 0x80008000 > 0xffffffff || (off & 3) != 0)
+	    gold_error(_("%s: linkage table error against `%s'"),
+		       ge->first->object()->name().c_str(),
+		       ge->first->demangled_name().c_str());
+
+	  write_insn<big_endian>(p, addis_12_12 + ha(off)),	p += 4;
+	  write_insn<big_endian>(p, ld_12_12 + l(off)),		p += 4;
+	  write_insn<big_endian>(p, mtctr_12),			p += 4;
+	  write_insn<big_endian>(p, bctr);
 	}
     }
   else
@@ -5119,13 +5225,15 @@ Target_powerpc<size, big_endian>::Scan::check_non_pic(Relobj* object,
 template<int size, bool big_endian>
 bool
 Target_powerpc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc(
+     Target_powerpc<size, big_endian>* target,
      Sized_relobj_file<size, big_endian>* object,
      unsigned int r_type,
      bool report_err)
 {
   // In non-pic code any reference will resolve to the plt call stub
   // for the ifunc symbol.
-  if (size == 32 && !parameters->options().output_is_position_independent())
+  if ((size == 32 || target->abiversion() >= 2)
+      && !parameters->options().output_is_position_independent())
     return true;
 
   switch (r_type)
@@ -5232,7 +5340,7 @@ Target_powerpc<size, big_endian>::Scan::local(
 
   // A local STT_GNU_IFUNC symbol may require a PLT entry.
   bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC;
-  if (is_ifunc && this->reloc_needs_plt_for_ifunc(object, r_type, true))
+  if (is_ifunc && this->reloc_needs_plt_for_ifunc(target, object, r_type, true))
     {
       unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
       target->push_branch(ppc_object, data_shndx, reloc.get_r_offset(),
@@ -5257,6 +5365,7 @@ Target_powerpc<size, big_endian>::Scan::local(
 	  {
 	    Address off = reloc.get_r_offset();
 	    if (size == 64
+		&& target->abiversion() < 2
 		&& data_shndx == ppc_object->opd_shndx()
 		&& ppc_object->get_opd_discard(off - 8))
 	      break;
@@ -5297,7 +5406,7 @@ Target_powerpc<size, big_endian>::Scan::local(
       // executable), we need to create a dynamic relocation for
       // this location.
       if (parameters->options().output_is_position_independent()
-	  || (size == 64 && is_ifunc))
+	  || (size == 64 && is_ifunc && target->abiversion() < 2))
 	{
 	  Reloc_section* rela_dyn = target->rela_dyn_section(symtab, layout,
 							     is_ifunc);
@@ -5389,7 +5498,8 @@ Target_powerpc<size, big_endian>::Scan::local(
 
 	if (!parameters->options().output_is_position_independent())
 	  {
-	    if (size == 32 && is_ifunc)
+	    if ((size == 32 && is_ifunc)
+		|| (size == 64 && target->abiversion() >= 2))
 	      got->add_local_plt(object, r_sym, GOT_TYPE_STANDARD);
 	    else
 	      got->add_local(object, r_sym, GOT_TYPE_STANDARD);
@@ -5587,12 +5697,14 @@ Target_powerpc<size, big_endian>::Scan::global(
 
   // A STT_GNU_IFUNC symbol may require a PLT entry.
   bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC;
-  if (is_ifunc && this->reloc_needs_plt_for_ifunc(object, r_type, true))
+  bool pushed_ifunc = false;
+  if (is_ifunc && this->reloc_needs_plt_for_ifunc(target, object, r_type, true))
     {
       target->push_branch(ppc_object, data_shndx, reloc.get_r_offset(),
 			  r_type, elfcpp::elf_r_sym<size>(reloc.get_r_info()),
 			  reloc.get_r_addend());
       target->make_plt_entry(symtab, layout, gsym);
+      pushed_ifunc = true;
     }
 
   switch (r_type)
@@ -5632,6 +5744,7 @@ Target_powerpc<size, big_endian>::Scan::global(
 
     case elfcpp::R_PPC64_ADDR64:
       if (size == 64
+	  && target->abiversion() < 2
 	  && data_shndx == ppc_object->opd_shndx()
 	  && (gsym->is_defined_in_discarded_section()
 	      || gsym->object() != object))
@@ -5664,7 +5777,19 @@ Target_powerpc<size, big_endian>::Scan::global(
 	// Make a PLT entry if necessary.
 	if (gsym->needs_plt_entry())
 	  {
-	    if (!is_ifunc)
+	    // Since this is not a PC-relative relocation, we may be
+	    // taking the address of a function. In that case we need to
+	    // set the entry in the dynamic symbol table to the address of
+	    // the PLT call stub.
+	    bool need_ifunc_plt = false;
+	    if ((size == 32 || target->abiversion() >= 2)
+		&& gsym->is_from_dynobj()
+		&& !parameters->options().output_is_position_independent())
+	      {
+		gsym->set_needs_dynsym_value();
+		need_ifunc_plt = true;
+	      }
+	    if (!is_ifunc || (!pushed_ifunc && need_ifunc_plt))
 	      {
 		target->push_branch(ppc_object, data_shndx,
 				    reloc.get_r_offset(), r_type,
@@ -5672,31 +5797,27 @@ Target_powerpc<size, big_endian>::Scan::global(
 				    reloc.get_r_addend());
 		target->make_plt_entry(symtab, layout, gsym);
 	      }
-	    // Since this is not a PC-relative relocation, we may be
-	    // taking the address of a function. In that case we need to
-	    // set the entry in the dynamic symbol table to the address of
-	    // the PLT call stub.
-	    if (size == 32
-		&& gsym->is_from_dynobj()
-		&& !parameters->options().output_is_position_independent())
-	      gsym->set_needs_dynsym_value();
 	  }
 	// Make a dynamic relocation if necessary.
 	if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type, target))
-	    || (size == 64 && is_ifunc))
+	    || (size == 64 && is_ifunc && target->abiversion() < 2))
 	  {
 	    if (gsym->may_need_copy_reloc())
 	      {
 		target->copy_reloc(symtab, layout, object,
 				   data_shndx, output_section, gsym, reloc);
 	      }
-	    else if ((size == 32
-		      && r_type == elfcpp::R_POWERPC_ADDR32
+	    else if ((((size == 32
+			&& r_type == elfcpp::R_POWERPC_ADDR32)
+		       || (size == 64
+			   && r_type == elfcpp::R_PPC64_ADDR64
+			   && target->abiversion() >= 2))
 		      && gsym->can_use_relative_reloc(false)
 		      && !(gsym->visibility() == elfcpp::STV_PROTECTED
 			   && parameters->options().shared()))
 		     || (size == 64
 			 && r_type == elfcpp::R_PPC64_ADDR64
+			 && target->abiversion() < 2
 			 && (gsym->can_use_relative_reloc(false)
 			     || data_shndx == ppc_object->opd_shndx())))
 	      {
@@ -5822,7 +5943,8 @@ Target_powerpc<size, big_endian>::Scan::global(
 	got = target->got_section(symtab, layout);
 	if (gsym->final_value_is_known())
 	  {
-	    if (size == 32 && is_ifunc)
+	    if ((size == 32 && is_ifunc)
+		|| (size == 64 && target->abiversion() >= 2))
 	      got->add_global_plt(gsym, GOT_TYPE_STANDARD);
 	    else
 	      got->add_global(gsym, GOT_TYPE_STANDARD);
@@ -5838,7 +5960,8 @@ Target_powerpc<size, big_endian>::Scan::global(
 	      = target->rela_dyn_section(symtab, layout, is_ifunc);
 
 	    if (gsym->can_use_relative_reloc(false)
-		&& !(size == 32
+		&& !((size == 32
+		      || target->abiversion() >= 2)
 		     && gsym->visibility() == elfcpp::STV_PROTECTED
 		     && parameters->options().shared()))
 	      {
@@ -6438,9 +6561,9 @@ Target_powerpc<size, big_endian>::symval_for_branch(
     Powerpc_relobj<size, big_endian>* object,
     unsigned int *dest_shndx)
 {
+  if (size == 32 || this->abiversion() >= 2)
+    gold_unreachable();
   *dest_shndx = 0;
-  if (size == 32)
-    return value;
 
   // If the symbol is defined in an opd section, ie. is a function
   // descriptor, use the function descriptor code entry address
@@ -6522,26 +6645,39 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
        ? gsym->use_plt_offset(Scan::get_reference_flags(r_type, target))
        : object->local_has_plt_offset(r_sym))
       && (!psymval->is_ifunc_symbol()
-	  || Scan::reloc_needs_plt_for_ifunc(object, r_type, false)))
+	  || Scan::reloc_needs_plt_for_ifunc(target, object, r_type, false)))
     {
-      Stub_table<size, big_endian>* stub_table
-	= object->stub_table(relinfo->data_shndx);
-      if (stub_table == NULL)
+      if (size == 64
+	  && gsym != NULL
+	  && target->abiversion() >= 2
+	  && !parameters->options().output_is_position_independent()
+	  && !is_branch_reloc(r_type))
 	{
-	  // This is a ref from a data section to an ifunc symbol.
-	  if (target->stub_tables().size() != 0)
-	    stub_table = target->stub_tables()[0];
+	  unsigned int off = target->glink_section()->find_global_entry(gsym);
+	  gold_assert(off != (unsigned int)-1);
+	  value = target->glink_section()->global_entry_address() + off;
 	}
-      gold_assert(stub_table != NULL);
-      Address off;
-      if (gsym != NULL)
-	off = stub_table->find_plt_call_entry(object, gsym, r_type,
-					      rela.get_r_addend());
       else
-	off = stub_table->find_plt_call_entry(object, r_sym, r_type,
-					      rela.get_r_addend());
-      gold_assert(off != invalid_address);
-      value = stub_table->stub_address() + off;
+	{
+	  Stub_table<size, big_endian>* stub_table
+	    = object->stub_table(relinfo->data_shndx);
+	  if (stub_table == NULL)
+	    {
+	      // This is a ref from a data section to an ifunc symbol.
+	      if (target->stub_tables().size() != 0)
+		stub_table = target->stub_tables()[0];
+	    }
+	  gold_assert(stub_table != NULL);
+	  Address off;
+	  if (gsym != NULL)
+	    off = stub_table->find_plt_call_entry(object, gsym, r_type,
+						  rela.get_r_addend());
+	  else
+	    off = stub_table->find_plt_call_entry(object, r_sym, r_type,
+						  rela.get_r_addend());
+	  gold_assert(off != invalid_address);
+	  value = stub_table->stub_address() + off;
+	}
       has_plt_value = true;
     }
 
@@ -6616,11 +6752,15 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
 	      if (gsym->source() == Symbol::FROM_OBJECT
 		  && gsym->object() == object)
 		{
-		  Address addend = rela.get_r_addend();
-		  unsigned int dest_shndx;
-		  Address opdent = psymval->value(object, addend);
-		  code = target->symval_for_branch(relinfo->symtab, opdent,
-						   gsym, object, &dest_shndx);
+		  unsigned int dest_shndx = 0;
+		  if (target->abiversion() < 2)
+		    {
+		      Address addend = rela.get_r_addend();
+		      Address opdent = psymval->value(object, addend);
+		      code = target->symval_for_branch(relinfo->symtab,
+						       opdent, gsym, object,
+						       &dest_shndx);
+		    }
 		  bool is_ordinary;
 		  if (dest_shndx == 0)
 		    dest_shndx = gsym->shndx(&is_ordinary);
@@ -6881,13 +7021,19 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       if (r_type != elfcpp::R_PPC_PLTREL24)
 	addend = rela.get_r_addend();
       value = psymval->value(object, addend);
-      if (gsym != NULL)
-	value += object->ppc64_local_entry_offset(gsym);
-      else
-	value += object->ppc64_local_entry_offset(r_sym);
       if (size == 64 && is_branch_reloc(r_type))
-	value = target->symval_for_branch(relinfo->symtab, value,
-					  gsym, object, &dest_shndx);
+	{
+	  if (target->abiversion() >= 2)
+	    {
+	      if (gsym != NULL)
+		value += object->ppc64_local_entry_offset(gsym);
+	      else
+		value += object->ppc64_local_entry_offset(r_sym);
+	    }
+	  else
+	    value = target->symval_for_branch(relinfo->symtab, value,
+					      gsym, object, &dest_shndx);
+	}
       unsigned int max_branch_offset = 0;
       if (r_type == elfcpp::R_POWERPC_REL24
 	  || r_type == elfcpp::R_PPC_PLTREL24
@@ -7846,6 +7992,12 @@ Target_powerpc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const
 	    return (*p)->stub_address() + off;
 	}
     }
+  else if (this->abiversion() >= 2)
+    {
+      unsigned int off = this->glink_section()->find_global_entry(gsym);
+      if (off != (unsigned int)-1)
+	return this->glink_section()->global_entry_address() + off;
+    }
   gold_unreachable();
 }
 
@@ -7890,6 +8042,12 @@ Target_powerpc<size, big_endian>::do_plt_address_for_global(
 	    return (*p)->stub_address() + off;
 	}
     }
+  else if (this->abiversion() >= 2)
+    {
+      unsigned int off = this->glink_section()->find_global_entry(gsym);
+      if (off != (unsigned int)-1)
+	return this->glink_section()->global_entry_address() + off;
+    }
   gold_unreachable();
 }
 
@@ -7987,6 +8145,9 @@ Target_selector_powerpc<64, false> target_selector_ppc64le;
 template<int size, bool big_endian>
 const int Output_data_glink<size, big_endian>::pltresolve_size;
 template<int size, bool big_endian>
+const typename Output_data_glink<size, big_endian>::Address
+  Output_data_glink<size, big_endian>::invalid_address;
+template<int size, bool big_endian>
 const typename Stub_table<size, big_endian>::Address
   Stub_table<size, big_endian>::invalid_address;
 template<int size, bool big_endian>