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Fix the gdb build with GCC 7
[deliverable/binutils-gdb.git] / gold / aarch64.cc
diff --git a/gold/aarch64.cc b/gold/aarch64.cc
index 5e702dbfd7710ef614da536ef35fe3c58b6cbba0..a45d3fd6671985332d7b77ab02846e8761435684 100644 (file)
--- a/gold/aarch64.cc
+++ b/gold/aarch64.cc
@@ -1,6 +1,6 @@
 // aarch64.cc -- aarch64 target support for gold.
 
-// Copyright (C) 2014-2017 Free Software Foundation, Inc.
+// Copyright (C) 2014-2019 Free Software Foundation, Inc.
 // Written by Jing Yu <jingyu@google.com> and Han Shen <shenhan@google.com>.
 
 // This file is part of gold.
@@ -3565,6 +3565,7 @@ const Target::Target_info Target_aarch64<64, false>::aarch64_info =
   NULL,                        // attributes_vendor
   "_start",            // entry_symbol_name
   32,                  // hash_entry_size
+  elfcpp::SHT_PROGBITS,        // unwind_section_type
 };
 
 template<>
@@ -3593,6 +3594,7 @@ const Target::Target_info Target_aarch64<32, false>::aarch64_info =
   NULL,                        // attributes_vendor
   "_start",            // entry_symbol_name
   32,                  // hash_entry_size
+  elfcpp::SHT_PROGBITS,        // unwind_section_type
 };
 
 template<>
@@ -3621,6 +3623,7 @@ const Target::Target_info Target_aarch64<64, true>::aarch64_info =
   NULL,                        // attributes_vendor
   "_start",            // entry_symbol_name
   32,                  // hash_entry_size
+  elfcpp::SHT_PROGBITS,        // unwind_section_type
 };
 
 template<>
@@ -3649,6 +3652,7 @@ const Target::Target_info Target_aarch64<32, true>::aarch64_info =
   NULL,                        // attributes_vendor
   "_start",            // entry_symbol_name
   32,                  // hash_entry_size
+  elfcpp::SHT_PROGBITS,        // unwind_section_type
 };
 
 // Get the GOT section, creating it if necessary.
@@ -3968,6 +3972,7 @@ Target_aarch64<size, big_endian>::scan_reloc_section_for_stubs(
       const Symbol_value<size> *psymval;
       bool is_defined_in_discarded_section;
       unsigned int shndx;
+      const Symbol* gsym = NULL;
       if (r_sym < local_count)
        {
          sym = NULL;
@@ -4020,7 +4025,6 @@ Target_aarch64<size, big_endian>::scan_reloc_section_for_stubs(
        }
       else
        {
-         const Symbol* gsym;
          gsym = object->global_symbol(r_sym);
          gold_assert(gsym != NULL);
          if (gsym->is_forwarder())
@@ -4061,16 +4065,16 @@ Target_aarch64<size, big_endian>::scan_reloc_section_for_stubs(
       Symbol_value<size> symval2;
       if (is_defined_in_discarded_section)
        {
+         std::string name = object->section_name(relinfo->data_shndx);
+
          if (comdat_behavior == CB_UNDETERMINED)
-           {
-             std::string name = object->section_name(relinfo->data_shndx);
              comdat_behavior = default_comdat_behavior.get(name.c_str());
-           }
+
          if (comdat_behavior == CB_PRETEND)
            {
              bool found;
              typename elfcpp::Elf_types<size>::Elf_Addr value =
-               object->map_to_kept_section(shndx, &found);
+               object->map_to_kept_section(shndx, name, &found);
              if (found)
                symval2.set_output_value(value + psymval->input_value());
              else
@@ -4078,10 +4082,8 @@ Target_aarch64<size, big_endian>::scan_reloc_section_for_stubs(
            }
          else
            {
-             if (comdat_behavior == CB_WARNING)
-               gold_warning_at_location(relinfo, i, offset,
-                                        _("relocation refers to discarded "
-                                          "section"));
+             if (comdat_behavior == CB_ERROR)
+               issue_discarded_error(relinfo, i, offset, r_sym, gsym);
              symval2.set_output_value(0);
            }
          symval2.set_no_output_symtab_entry();
@@ -5916,6 +5918,14 @@ Target_aarch64<size, big_endian>::optimize_tls_reloc(bool is_final,
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_HI12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC:
       // When we already have Local-Exec, there is nothing further we
       // can do.
       return tls::TLSOPT_NONE;
@@ -6262,6 +6272,14 @@ Target_aarch64<size, big_endian>::Scan::local(
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_HI12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC:
       {
        layout->set_has_static_tls();
        bool output_is_shared = parameters->options().shared();
@@ -6478,6 +6496,17 @@ Target_aarch64<size, big_endian>::Scan::global(
          gold_error(_("%s: unsupported reloc %u in pos independent link."),
                     object->name().c_str(), r_type);
        }
+      // Make a PLT entry if necessary.
+      if (gsym->needs_plt_entry())
+       {
+         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 entry.
+         if (gsym->is_from_dynobj() && !parameters->options().shared())
+           gsym->set_needs_dynsym_value();
+       }
       break;
 
     case elfcpp::R_AARCH64_LD_PREL_LO19:        // 273
@@ -6679,7 +6708,15 @@ Target_aarch64<size, big_endian>::Scan::global(
     case elfcpp::R_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_HI12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12:
-    case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:  // Local executable
+    case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC:  // Local executable
       layout->set_has_static_tls();
       if (parameters->options().shared())
        gold_error(_("%s: unsupported TLSLE reloc type %u in shared objects."),
@@ -6939,11 +6976,11 @@ Target_aarch64<size, big_endian>::do_finalize_sections(
     }
 
   // Set the size of the _GLOBAL_OFFSET_TABLE_ symbol to the size of
-  // the .got.plt section.
+  // the .got section.
   Symbol* sym = this->global_offset_table_;
   if (sym != NULL)
     {
-      uint64_t data_size = this->got_plt_->current_data_size();
+      uint64_t data_size = this->got_->current_data_size();
       symtab->get_sized_symbol<size>(sym)->set_symsize(data_size);
 
       // If the .got section is more than 0x8000 bytes, we add
@@ -7276,6 +7313,14 @@ Target_aarch64<size, big_endian>::Relocate::relocate(
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_HI12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC:
     case elfcpp::R_AARCH64_TLSDESC_ADR_PAGE21:
     case elfcpp::R_AARCH64_TLSDESC_LD64_LO12:
     case elfcpp::R_AARCH64_TLSDESC_ADD_LO12:
@@ -7555,6 +7600,14 @@ Target_aarch64<size, big_endian>::Relocate::relocate_tls(
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_HI12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12:
     case elfcpp::R_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12:
+    case elfcpp::R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC:
       {
        gold_assert(tls_segment != NULL);
        AArch64_address value = psymval->value(object, 0);
GDB Binutils - Deliverables
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