// aarch64.cc -- aarch64 target support for gold.
-// Copyright (C) 2014-2015 Free Software Foundation, Inc.
+// Copyright (C) 2014-2016 Free Software Foundation, Inc.
// Written by Jing Yu <jingyu@google.com> and Han Shen <shenhan@google.com>.
// This file is part of gold.
const unsigned char* plocal_symbols,
Relocatable_relocs*);
+ // Scan the relocs for --emit-relocs.
+ void
+ emit_relocs_scan(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_syms,
+ Relocatable_relocs* rr);
+
// Relocate a section during a relocatable link.
void
relocate_relocs(
size_t reloc_count,
Output_section* output_section,
typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section,
- const Relocatable_relocs*,
unsigned char* view,
typename elfcpp::Elf_types<size>::Elf_Addr view_address,
section_size_type view_size,
// Do a relocation. Return false if the caller should not issue
// any warnings about this relocation.
inline bool
- relocate(const Relocate_info<size, big_endian>*, Target_aarch64*,
- Output_section*,
- size_t relnum, const elfcpp::Rela<size, big_endian>&,
- unsigned int r_type, const Sized_symbol<size>*,
- const Symbol_value<size>*,
+ relocate(const Relocate_info<size, big_endian>*, unsigned int,
+ Target_aarch64*, Output_section*, size_t, const unsigned char*,
+ const Sized_symbol<size>*, const Symbol_value<size>*,
unsigned char*, typename elfcpp::Elf_types<size>::Elf_Addr,
section_size_type);
}; // End of class Relocate
- // A class which returns the size required for a relocation type,
- // used while scanning relocs during a relocatable link.
- class Relocatable_size_for_reloc
- {
- public:
- unsigned int
- get_size_for_reloc(unsigned int, Relobj*);
- };
-
// Adjust TLS relocation type based on the options and whether this
// is a local symbol.
static tls::Tls_optimization
unsigned int shndx, Output_section* output_section,
Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc)
{
+ unsigned int r_type = elfcpp::elf_r_type<size>(reloc.get_r_info());
this->copy_relocs_.copy_reloc(symtab, layout,
symtab->get_sized_symbol<size>(sym),
object, shndx, output_section,
- reloc, this->rela_dyn_section(layout));
+ r_type, reloc.get_r_offset(),
+ reloc.get_r_addend(),
+ this->rela_dyn_section(layout));
}
// Information about this specific target which we pass to the
0, // large_common_section_flags
NULL, // attributes_section
NULL, // attributes_vendor
- "_start" // entry_symbol_name
+ "_start", // entry_symbol_name
+ 32, // hash_entry_size
};
template<>
0, // large_common_section_flags
NULL, // attributes_section
NULL, // attributes_vendor
- "_start" // entry_symbol_name
+ "_start", // entry_symbol_name
+ 32, // hash_entry_size
};
template<>
0, // large_common_section_flags
NULL, // attributes_section
NULL, // attributes_vendor
- "_start" // entry_symbol_name
+ "_start", // entry_symbol_name
+ 32, // hash_entry_size
};
template<>
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.
size_t local_symbol_count,
const unsigned char* plocal_symbols)
{
+ typedef Target_aarch64<size, big_endian> Aarch64;
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+
if (sh_type == elfcpp::SHT_REL)
{
return;
}
- gold::gc_process_relocs<
- size, big_endian,
- Target_aarch64<size, big_endian>,
- elfcpp::SHT_RELA,
- typename Target_aarch64<size, big_endian>::Scan,
- typename Target_aarch64<size, big_endian>::Relocatable_size_for_reloc>(
+ gold::gc_process_relocs<size, big_endian, Aarch64, Scan, Classify_reloc>(
symtab,
layout,
this,
size_t local_symbol_count,
const unsigned char* plocal_symbols)
{
+ typedef Target_aarch64<size, big_endian> Aarch64;
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+
if (sh_type == elfcpp::SHT_REL)
{
gold_error(_("%s: unsupported REL reloc section"),
object->name().c_str());
return;
}
- gold::scan_relocs<size, big_endian, Target_aarch64, elfcpp::SHT_RELA, Scan>(
+
+ gold::scan_relocs<size, big_endian, Aarch64, Scan, Classify_reloc>(
symtab,
layout,
this,
inline bool
Target_aarch64<size, big_endian>::Relocate::relocate(
const Relocate_info<size, big_endian>* relinfo,
+ unsigned int,
Target_aarch64<size, big_endian>* target,
Output_section* ,
size_t relnum,
- const elfcpp::Rela<size, big_endian>& rela,
- unsigned int r_type,
+ const unsigned char* preloc,
const Sized_symbol<size>* gsym,
const Symbol_value<size>* psymval,
unsigned char* view,
typedef AArch64_relocate_functions<size, big_endian> Reloc;
+ const elfcpp::Rela<size, big_endian> rela(preloc);
+ unsigned int r_type = elfcpp::elf_r_type<size>(rela.get_r_info());
const AArch64_reloc_property* reloc_property =
aarch64_reloc_property_table->get_reloc_property(r_type);
break;
case elfcpp::R_AARCH64_ABS64:
+ if (!parameters->options().apply_dynamic_relocs()
+ && parameters->options().output_is_position_independent()
+ && gsym != NULL
+ && gsym->needs_dynamic_reloc(reloc_property->reference_flags())
+ && !gsym->can_use_relative_reloc(false))
+ // We have generated an absolute dynamic relocation, so do not
+ // apply the relocation statically. (Works around bugs in older
+ // Android dynamic linkers.)
+ break;
reloc_status = Reloc::template rela_ua<64>(
view, object, psymval, addend, reloc_property);
break;
case elfcpp::R_AARCH64_ABS32:
+ if (!parameters->options().apply_dynamic_relocs()
+ && parameters->options().output_is_position_independent()
+ && gsym != NULL
+ && gsym->needs_dynamic_reloc(reloc_property->reference_flags()))
+ // We have generated an absolute dynamic relocation, so do not
+ // apply the relocation statically. (Works around bugs in older
+ // Android dynamic linkers.)
+ break;
reloc_status = Reloc::template rela_ua<32>(
view, object, psymval, addend, reloc_property);
break;
case elfcpp::R_AARCH64_ABS16:
+ if (!parameters->options().apply_dynamic_relocs()
+ && parameters->options().output_is_position_independent()
+ && gsym != NULL
+ && gsym->needs_dynamic_reloc(reloc_property->reference_flags()))
+ // We have generated an absolute dynamic relocation, so do not
+ // apply the relocation statically. (Works around bugs in older
+ // Android dynamic linkers.)
+ break;
reloc_status = Reloc::template rela_ua<16>(
view, object, psymval, addend, reloc_property);
break;
section_size_type view_size,
const Reloc_symbol_changes* reloc_symbol_changes)
{
- gold_assert(sh_type == elfcpp::SHT_RELA);
+ typedef Target_aarch64<size, big_endian> Aarch64;
typedef typename Target_aarch64<size, big_endian>::Relocate AArch64_relocate;
- gold::relocate_section<size, big_endian, Target_aarch64, elfcpp::SHT_RELA,
- AArch64_relocate, gold::Default_comdat_behavior>(
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ gold::relocate_section<size, big_endian, Aarch64, AArch64_relocate,
+ gold::Default_comdat_behavior, Classify_reloc>(
relinfo,
this,
prelocs,
reloc_symbol_changes);
}
-// Return the size of a relocation while scanning during a relocatable
-// link.
-
-template<int size, bool big_endian>
-unsigned int
-Target_aarch64<size, big_endian>::Relocatable_size_for_reloc::
-get_size_for_reloc(
- unsigned int ,
- Relobj* )
-{
- // We will never support SHT_REL relocations.
- gold_unreachable();
- return 0;
-}
-
// Scan the relocs during a relocatable link.
template<int size, bool big_endian>
const unsigned char* plocal_symbols,
Relocatable_relocs* rr)
{
- gold_assert(sh_type == elfcpp::SHT_RELA);
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+ typedef gold::Default_scan_relocatable_relocs<Classify_reloc>
+ Scan_relocatable_relocs;
- typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA,
- Relocatable_size_for_reloc> Scan_relocatable_relocs;
+ gold_assert(sh_type == elfcpp::SHT_RELA);
- gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
- Scan_relocatable_relocs>(
+ gold::scan_relocatable_relocs<size, big_endian, Scan_relocatable_relocs>(
symtab,
layout,
object,
rr);
}
+// Scan the relocs for --emit-relocs.
+
+template<int size, bool big_endian>
+void
+Target_aarch64<size, big_endian>::emit_relocs_scan(
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_syms,
+ Relocatable_relocs* rr)
+{
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+ typedef gold::Default_emit_relocs_strategy<Classify_reloc>
+ Emit_relocs_strategy;
+
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ gold::scan_relocatable_relocs<size, big_endian, Emit_relocs_strategy>(
+ symtab,
+ layout,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_syms,
+ rr);
+}
+
// Relocate a section during a relocatable link.
template<int size, bool big_endian>
size_t reloc_count,
Output_section* output_section,
typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section,
- const Relocatable_relocs* rr,
unsigned char* view,
typename elfcpp::Elf_types<size>::Elf_Addr view_address,
section_size_type view_size,
unsigned char* reloc_view,
section_size_type reloc_view_size)
{
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+
gold_assert(sh_type == elfcpp::SHT_RELA);
- gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>(
+ gold::relocate_relocs<size, big_endian, Classify_reloc>(
relinfo,
prelocs,
reloc_count,
output_section,
offset_in_output_section,
- rr,
view,
view_address,
view_size,
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