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Diffstat (limited to 'gold/tilegx.cc')
| -rw-r--r-- | gold/tilegx.cc | 4907 |
1 files changed, 4907 insertions, 0 deletions
diff --git a/gold/tilegx.cc b/gold/tilegx.cc new file mode 100644 index 0000000..037bf54 --- /dev/null +++ b/gold/tilegx.cc @@ -0,0 +1,4907 @@ +// tilegx.cc -- tilegx target support for gold. + +// Copyright 2012 Free Software Foundation, Inc. +// Written by Jiong Wang (jiwang@tilera.com) + +// This file is part of gold. + +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3 of the License, or +// (at your option) any later version. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, +// MA 02110-1301, USA. + +#include "gold.h" + +#include <cstring> + +#include "elfcpp.h" +#include "dwarf.h" +#include "parameters.h" +#include "reloc.h" +#include "tilegx.h" +#include "object.h" +#include "symtab.h" +#include "layout.h" +#include "output.h" +#include "copy-relocs.h" +#include "target.h" +#include "target-reloc.h" +#include "target-select.h" +#include "tls.h" +#include "gc.h" +#include "icf.h" + +// the first got entry reserved +const int32_t TILEGX_GOT_RESERVE_COUNT = 1; + +// the first two .got.plt entry reserved +const int32_t TILEGX_GOTPLT_RESERVE_COUNT = 2; + +// 1. for both 64/32 bit mode, the instruction bundle is always 64bit. +// 2. thus .plt section should always be aligned to 64 bit. +const int32_t TILEGX_INST_BUNDLE_SIZE = 64; + +namespace +{ + +using namespace gold; + +// A class to handle the PLT data. +// This is an abstract base class that handles most of the linker details +// but does not know the actual contents of PLT entries. The derived +// classes below fill in those details. + +template<int size, bool big_endian> +class Output_data_plt_tilegx : public Output_section_data +{ + public: + typedef Output_data_reloc<elfcpp::SHT_RELA, true,size, big_endian> + Reloc_section; + + Output_data_plt_tilegx(Layout* layout, uint64_t addralign, + Output_data_got<size, big_endian>* got, + Output_data_space* got_plt, + Output_data_space* got_irelative) + : Output_section_data(addralign), layout_(layout), + irelative_rel_(NULL), got_(got), got_plt_(got_plt), + got_irelative_(got_irelative), count_(0), + irelative_count_(0), free_list_() + { this->init(layout); } + + Output_data_plt_tilegx(Layout* layout, uint64_t plt_entry_size, + Output_data_got<size, big_endian>* got, + Output_data_space* got_plt, + Output_data_space* got_irelative, + unsigned int plt_count) + : Output_section_data((plt_count + 1) * plt_entry_size, + TILEGX_INST_BUNDLE_SIZE, false), + layout_(layout), irelative_rel_(NULL), got_(got), + got_plt_(got_plt), got_irelative_(got_irelative), count_(plt_count), + irelative_count_(0), free_list_() + { + this->init(layout); + + // Initialize the free list and reserve the first entry. + this->free_list_.init((plt_count + 1) * plt_entry_size, false); + this->free_list_.remove(0, plt_entry_size); + } + + // Initialize the PLT section. + void + init(Layout* layout); + + // Add an entry to the PLT. + void + add_entry(Symbol_table*, Layout*, Symbol* gsym); + + // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. + unsigned int + add_local_ifunc_entry(Symbol_table*, Layout*, + Sized_relobj_file<size, big_endian>*, unsigned int); + + // Add the relocation for a PLT entry. + void + add_relocation(Symbol_table*, Layout*, Symbol*, unsigned int); + + // Return the .rela.plt section data. + Reloc_section* + rela_plt() + { return this->rel_; } + + // Return where the IRELATIVE relocations should go in the PLT + // relocations. + Reloc_section* + rela_irelative(Symbol_table*, Layout*); + + // Return whether we created a section for IRELATIVE relocations. + bool + has_irelative_section() const + { return this->irelative_rel_ != NULL; } + + // Return the number of PLT entries. + unsigned int + entry_count() const + { return this->count_ + this->irelative_count_; } + + // Return the offset of the first non-reserved PLT entry. + unsigned int + first_plt_entry_offset() + { return this->get_plt_entry_size(); } + + // Return the size of a PLT entry. + unsigned int + get_plt_entry_size() const + { return plt_entry_size; } + + // Reserve a slot in the PLT for an existing symbol in an incremental update. + void + reserve_slot(unsigned int plt_index) + { + this->free_list_.remove((plt_index + 1) * this->get_plt_entry_size(), + (plt_index + 2) * this->get_plt_entry_size()); + } + + // Return the PLT address to use for a global symbol. + uint64_t + address_for_global(const Symbol*); + + // Return the PLT address to use for a local symbol. + uint64_t + address_for_local(const Relobj*, unsigned int symndx); + + protected: + // Fill in the first PLT entry. + void + fill_first_plt_entry(unsigned char*); + + // Fill in a normal PLT entry. Returns the offset into the entry that + // should be the initial GOT slot value. + void + fill_plt_entry(unsigned char*, + typename elfcpp::Elf_types<size>::Elf_Addr, + unsigned int, + typename elfcpp::Elf_types<size>::Elf_Addr, + unsigned int, unsigned int); + + void + do_adjust_output_section(Output_section* os); + + // Write to a map file. + void + do_print_to_mapfile(Mapfile* mapfile) const + { mapfile->print_output_data(this, _("** PLT")); } + + private: + // Set the final size. + void + set_final_data_size(); + + // Write out the PLT data. + void + do_write(Output_file*); + + // A pointer to the Layout class, so that we can find the .dynamic + // section when we write out the GOT PLT section. + Layout* layout_; + // The reloc section. + Reloc_section* rel_; + // The IRELATIVE relocs, if necessary. These must follow the + // regular PLT relocations. + Reloc_section* irelative_rel_; + // The .got section. + Output_data_got<size, big_endian>* got_; + // The .got.plt section. + Output_data_space* got_plt_; + // The part of the .got.plt section used for IRELATIVE relocs. + Output_data_space* got_irelative_; + // The number of PLT entries. + unsigned int count_; + // Number of PLT entries with R_TILEGX_IRELATIVE relocs. These + // follow the regular PLT entries. + unsigned int irelative_count_; + // List of available regions within the section, for incremental + // update links. + Free_list free_list_; + // The size of an entry in the PLT. + static const int plt_entry_size = 40; + // The first entry in the PLT. + static const unsigned char first_plt_entry[plt_entry_size]; + // Other entries in the PLT for an executable. + static const unsigned char plt_entry[plt_entry_size]; +}; + +// The tilegx target class. +// See the ABI at +// http://www.tilera.com/scm +// TLS info comes from +// http://people.redhat.com/drepper/tls.pdf + +template<int size, bool big_endian> +class Target_tilegx : public Sized_target<size, big_endian> +{ + public: + // TileGX use RELA + typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> + Reloc_section; + + Target_tilegx(const Target::Target_info* info = &tilegx_info) + : Sized_target<size, big_endian>(info), + got_(NULL), plt_(NULL), got_plt_(NULL), got_irelative_(NULL), + global_offset_table_(NULL), tilegx_dynamic_(NULL), rela_dyn_(NULL), + rela_irelative_(NULL), copy_relocs_(elfcpp::R_TILEGX_COPY), + dynbss_(NULL), got_mod_index_offset_(-1U), + tls_get_addr_sym_defined_(false) + { } + + // Scan the relocations to look for symbol adjustments. + void + gc_process_relocs(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_symbols); + + // Scan the relocations to look for symbol adjustments. + void + scan_relocs(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_symbols); + + // Finalize the sections. + void + do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); + + // Return the value to use for a dynamic which requires special + // treatment. + uint64_t + do_dynsym_value(const Symbol*) const; + + // Relocate a section. + void + relocate_section(const Relocate_info<size, big_endian>*, + unsigned int sh_type, + const unsigned char* prelocs, + size_t reloc_count, + Output_section* output_section, + bool needs_special_offset_handling, + unsigned char* view, + typename elfcpp::Elf_types<size>::Elf_Addr view_address, + section_size_type view_size, + const Reloc_symbol_changes*); + + // Scan the relocs during a relocatable link. + void + scan_relocatable_relocs(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_symbols, + Relocatable_relocs*); + + // Relocate a section during a relocatable link. + void + relocate_relocs( + const Relocate_info<size, big_endian>*, + unsigned int sh_type, + const unsigned char* prelocs, + size_t reloc_count, + Output_section* output_section, + off_t offset_in_output_section, + const Relocatable_relocs*, + 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); + + // Return whether SYM is defined by the ABI. + bool + do_is_defined_by_abi(const Symbol* sym) const + { return strcmp(sym->name(), "__tls_get_addr") == 0; } + + // define tilegx specific symbols + virtual void + do_define_standard_symbols(Symbol_table*, Layout*); + + // Return the PLT section. + uint64_t + do_plt_address_for_global(const Symbol* gsym) const + { return this->plt_section()->address_for_global(gsym); } + + uint64_t + do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const + { return this->plt_section()->address_for_local(relobj, symndx); } + + // This function should be defined in targets that can use relocation + // types to determine (implemented in local_reloc_may_be_function_pointer + // and global_reloc_may_be_function_pointer) + // if a function's pointer is taken. ICF uses this in safe mode to only + // fold those functions whose pointer is defintely not taken. For tilegx + // pie binaries, safe ICF cannot be done by looking at relocation types. + bool + do_can_check_for_function_pointers() const + { return true; } + + // Return the base for a DW_EH_PE_datarel encoding. + uint64_t + do_ehframe_datarel_base() const; + + // Return whether there is a GOT section. + bool + has_got_section() const + { return this->got_ != NULL; } + + // Return the size of the GOT section. + section_size_type + got_size() const + { + gold_assert(this->got_ != NULL); + return this->got_->data_size(); + } + + // Return the number of entries in the GOT. + unsigned int + got_entry_count() const + { + if (this->got_ == NULL) + return 0; + return this->got_size() / (size / 8); + } + + // Return the number of entries in the PLT. + unsigned int + plt_entry_count() const; + + // Return the offset of the first non-reserved PLT entry. + unsigned int + first_plt_entry_offset() const; + + // Return the size of each PLT entry. + unsigned int + plt_entry_size() const; + + // Create the GOT section for an incremental update. + Output_data_got_base* + init_got_plt_for_update(Symbol_table* symtab, + Layout* layout, + unsigned int got_count, + unsigned int plt_count); + + // Reserve a GOT entry for a local symbol, and regenerate any + // necessary dynamic relocations. + void + reserve_local_got_entry(unsigned int got_index, + Sized_relobj<size, big_endian>* obj, + unsigned int r_sym, + unsigned int got_type); + + // Reserve a GOT entry for a global symbol, and regenerate any + // necessary dynamic relocations. + void + reserve_global_got_entry(unsigned int got_index, Symbol* gsym, + unsigned int got_type); + + // Register an existing PLT entry for a global symbol. + void + register_global_plt_entry(Symbol_table*, Layout*, unsigned int plt_index, + Symbol* gsym); + + // Force a COPY relocation for a given symbol. + void + emit_copy_reloc(Symbol_table*, Symbol*, Output_section*, off_t); + + // Apply an incremental relocation. + void + apply_relocation(const Relocate_info<size, big_endian>* relinfo, + typename elfcpp::Elf_types<size>::Elf_Addr r_offset, + unsigned int r_type, + typename elfcpp::Elf_types<size>::Elf_Swxword r_addend, + const Symbol* gsym, + unsigned char* view, + typename elfcpp::Elf_types<size>::Elf_Addr address, + section_size_type view_size); + + private: + // The class which scans relocations. + class Scan + { + public: + Scan() + : issued_non_pic_error_(false) + { } + + static inline int + get_reference_flags(unsigned int r_type); + + inline void + local(Symbol_table* symtab, Layout* layout, Target_tilegx* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, + const elfcpp::Sym<size, big_endian>& lsym, + bool is_discarded); + + inline void + global(Symbol_table* symtab, Layout* layout, Target_tilegx* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, + Symbol* gsym); + + inline bool + local_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout, + Target_tilegx* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, + unsigned int r_type, + const elfcpp::Sym<size, big_endian>& lsym); + + inline bool + global_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout, + Target_tilegx* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, + unsigned int r_type, + Symbol* gsym); + + private: + static void + unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, + unsigned int r_type); + + static void + unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, + unsigned int r_type, Symbol*); + + void + check_non_pic(Relobj*, unsigned int r_type); + + inline bool + possible_function_pointer_reloc(unsigned int r_type); + + bool + reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, + unsigned int r_type); + + // Whether we have issued an error about a non-PIC compilation. + bool issued_non_pic_error_; + }; + + // The class which implements relocation. + class Relocate + { + public: + Relocate() + { } + + ~Relocate() + { + } + + // 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_tilegx*, + Output_section*, + size_t relnum, const elfcpp::Rela<size, big_endian>&, + unsigned int r_type, const Sized_symbol<size>*, + const Symbol_value<size>*, + unsigned char*, typename elfcpp::Elf_types<size>::Elf_Addr, + section_size_type); + }; + + // 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 + optimize_tls_reloc(bool is_final, int r_type); + + // Get the GOT section, creating it if necessary. + Output_data_got<size, big_endian>* + got_section(Symbol_table*, Layout*); + + // Get the GOT PLT section. + Output_data_space* + got_plt_section() const + { + gold_assert(this->got_plt_ != NULL); + return this->got_plt_; + } + + // Create the PLT section. + void + make_plt_section(Symbol_table* symtab, Layout* layout); + + // Create a PLT entry for a global symbol. + void + make_plt_entry(Symbol_table*, Layout*, Symbol*); + + // Create a PLT entry for a local STT_GNU_IFUNC symbol. + void + make_local_ifunc_plt_entry(Symbol_table*, Layout*, + Sized_relobj_file<size, big_endian>* relobj, + unsigned int local_sym_index); + + // Create a GOT entry for the TLS module index. + unsigned int + got_mod_index_entry(Symbol_table* symtab, Layout* layout, + Sized_relobj_file<size, big_endian>* object); + + // Get the PLT section. + Output_data_plt_tilegx<size, big_endian>* + plt_section() const + { + gold_assert(this->plt_ != NULL); + return this->plt_; + } + + // Get the dynamic reloc section, creating it if necessary. + Reloc_section* + rela_dyn_section(Layout*); + + // Get the section to use for IRELATIVE relocations. + Reloc_section* + rela_irelative_section(Layout*); + + // Add a potential copy relocation. + void + copy_reloc(Symbol_table* symtab, Layout* layout, + Sized_relobj_file<size, big_endian>* object, + unsigned int shndx, Output_section* output_section, + Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) + { + this->copy_relocs_.copy_reloc(symtab, layout, + symtab->get_sized_symbol<size>(sym), + object, shndx, output_section, + reloc, this->rela_dyn_section(layout)); + } + + // Information about this specific target which we pass to the + // general Target structure. + static const Target::Target_info tilegx_info; + + // The types of GOT entries needed for this platform. + // These values are exposed to the ABI in an incremental link. + // Do not renumber existing values without changing the version + // number of the .gnu_incremental_inputs section. + enum Got_type + { + GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol + GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset + GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair + GOT_TYPE_TLS_DESC = 3 // GOT entry for TLS_DESC pair + }; + + // This type is used as the argument to the target specific + // relocation routines. The only target specific reloc is + // R_X86_64_TLSDESC against a local symbol. + struct Tlsdesc_info + { + Tlsdesc_info(Sized_relobj_file<size, big_endian>* a_object, + unsigned int a_r_sym) + : object(a_object), r_sym(a_r_sym) + { } + + // The object in which the local symbol is defined. + Sized_relobj_file<size, big_endian>* object; + // The local symbol index in the object. + unsigned int r_sym; + }; + + // The GOT section. + Output_data_got<size, big_endian>* got_; + // The PLT section. + Output_data_plt_tilegx<size, big_endian>* plt_; + // The GOT PLT section. + Output_data_space* got_plt_; + // The GOT section for IRELATIVE relocations. + Output_data_space* got_irelative_; + // The _GLOBAL_OFFSET_TABLE_ symbol. + Symbol* global_offset_table_; + // The _TILEGX_DYNAMIC_ symbol. + Symbol* tilegx_dynamic_; + // The dynamic reloc section. + Reloc_section* rela_dyn_; + // The section to use for IRELATIVE relocs. + Reloc_section* rela_irelative_; + // Relocs saved to avoid a COPY reloc. + Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; + // Space for variables copied with a COPY reloc. + Output_data_space* dynbss_; + // Offset of the GOT entry for the TLS module index. + unsigned int got_mod_index_offset_; + // True if the _tls_get_addr symbol has been defined. + bool tls_get_addr_sym_defined_; +}; + +template<> +const Target::Target_info Target_tilegx<64, false>::tilegx_info = +{ + 64, // size + false, // is_big_endian + elfcpp::EM_TILEGX, // machine_code + false, // has_make_symbol + false, // has_resolve + false, // has_code_fill + true, // is_default_stack_executable + false, // can_icf_inline_merge_sections + '\0', // wrap_char + "/lib/ld.so.1", // program interpreter + 0x10000, // default_text_segment_address + 0x10000, // abi_pagesize (overridable by -z max-page-size) + 0x10000, // common_pagesize (overridable by -z common-page-size) + false, // isolate_execinstr + 0, // rosegment_gap + elfcpp::SHN_UNDEF, // small_common_shndx + elfcpp::SHN_UNDEF, // large_common_shndx + 0, // small_common_section_flags + 0, // large_common_section_flags + NULL, // attributes_section + NULL // attributes_vendor +}; + +template<> +const Target::Target_info Target_tilegx<32, false>::tilegx_info = +{ + 32, // size + false, // is_big_endian + elfcpp::EM_TILEGX, // machine_code + false, // has_make_symbol + false, // has_resolve + false, // has_code_fill + true, // is_default_stack_executable + false, // can_icf_inline_merge_sections + '\0', // wrap_char + "/lib32/ld.so.1", // program interpreter + 0x10000, // default_text_segment_address + 0x10000, // abi_pagesize (overridable by -z max-page-size) + 0x10000, // common_pagesize (overridable by -z common-page-size) + false, // isolate_execinstr + 0, // rosegment_gap + elfcpp::SHN_UNDEF, // small_common_shndx + elfcpp::SHN_UNDEF, // large_common_shndx + 0, // small_common_section_flags + 0, // large_common_section_flags + NULL, // attributes_section + NULL // attributes_vendor +}; + +template<> +const Target::Target_info Target_tilegx<64, true>::tilegx_info = +{ + 64, // size + true, // is_big_endian + elfcpp::EM_TILEGX, // machine_code + false, // has_make_symbol + false, // has_resolve + false, // has_code_fill + true, // is_default_stack_executable + false, // can_icf_inline_merge_sections + '\0', // wrap_char + "/lib/ld.so.1", // program interpreter + 0x10000, // default_text_segment_address + 0x10000, // abi_pagesize (overridable by -z max-page-size) + 0x10000, // common_pagesize (overridable by -z common-page-size) + false, // isolate_execinstr + 0, // rosegment_gap + elfcpp::SHN_UNDEF, // small_common_shndx + elfcpp::SHN_UNDEF, // large_common_shndx + 0, // small_common_section_flags + 0, // large_common_section_flags + NULL, // attributes_section + NULL // attributes_vendor +}; + +template<> +const Target::Target_info Target_tilegx<32, true>::tilegx_info = +{ + 32, // size + true, // is_big_endian + elfcpp::EM_TILEGX, // machine_code + false, // has_make_symbol + false, // has_resolve + false, // has_code_fill + true, // is_default_stack_executable + false, // can_icf_inline_merge_sections + '\0', // wrap_char + "/lib32/ld.so.1", // program interpreter + 0x10000, // default_text_segment_address + 0x10000, // abi_pagesize (overridable by -z max-page-size) + 0x10000, // common_pagesize (overridable by -z common-page-size) + false, // isolate_execinstr + 0, // rosegment_gap + elfcpp::SHN_UNDEF, // small_common_shndx + elfcpp::SHN_UNDEF, // large_common_shndx + 0, // small_common_section_flags + 0, // large_common_section_flags + NULL, // attributes_section + NULL // attributes_vendor +}; + +// tilegx relocation handlers +template<int size, bool big_endian> +class Tilegx_relocate_functions +{ +public: + // overflow check will be supported later + typedef enum + { + STATUS_OKAY, // No error during relocation. + STATUS_OVERFLOW, // Relocation overflow. + STATUS_BAD_RELOC // Relocation cannot be applied. + } Status; + + struct Tilegx_howto + { + // right shift operand by this number of bits. + unsigned char srshift; + + // the offset to apply relocation. + unsigned char doffset; + + // set to 1 for pc-relative relocation. + unsigned char is_pcrel; + + // size in bits, or 0 if this table entry should be ignored. + unsigned char bsize; + + // whether we need to check overflow. + unsigned char overflow; + }; + + static const Tilegx_howto howto[elfcpp::R_TILEGX_NUM]; + +private: + + // Do a simple rela relocation + template<int valsize> + static inline void + rela(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, + elfcpp::Elf_Xword bitmask) + { + typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; + Valtype* wv = reinterpret_cast<Valtype*>(view); + Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; + else + reloc = psymval->value(object, addend) >> srshift; + + elfcpp::Elf_Xword dst_mask = bitmask << doffset; + + val &= ~dst_mask; + reloc &= bitmask; + + elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset)); + } + + // Do a simple rela relocation + template<int valsize> + static inline void + rela_ua(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, + elfcpp::Elf_Xword bitmask) + { + typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype + Valtype; + unsigned char* wv = view; + Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; + else + reloc = psymval->value(object, addend) >> srshift; + + elfcpp::Elf_Xword dst_mask = bitmask << doffset; + + val &= ~dst_mask; + reloc &= bitmask; + + elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, + val | (reloc<<doffset)); + } + + template<int valsize> + static inline void + rela(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1, + elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2, + elfcpp::Elf_Xword bitmask2) + { + typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; + Valtype* wv = reinterpret_cast<Valtype*>(view); + Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; + else + reloc = psymval->value(object, addend) >> srshift; + + elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1) + | (bitmask2 << doffset2); + val &= ~dst_mask; + reloc = ((reloc & bitmask1) << doffset1) + | ((reloc & bitmask2) << doffset2); + + elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); + + } + + // Do a simple PC relative relocation with a Symbol_value with the + // addend in the relocation. + template<int valsize> + static inline void + pcrela(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + typename elfcpp::Elf_types<size>::Elf_Addr address, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, + elfcpp::Elf_Xword bitmask) + + { + typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; + Valtype* wv = reinterpret_cast<Valtype*>(view); + Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) + >> srshift; + else + reloc = (psymval->value(object, addend) - address) >> srshift; + + elfcpp::Elf_Xword dst_mask = bitmask << doffset; + val &= ~dst_mask; + reloc &= bitmask; + + elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset)); + } + + template<int valsize> + static inline void + pcrela_ua(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + typename elfcpp::Elf_types<size>::Elf_Addr address, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, + elfcpp::Elf_Xword bitmask) + + { + typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype + Valtype; + unsigned char* wv = view; + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) + >> srshift; + else + reloc = (psymval->value(object, addend) - address) >> srshift; + + reloc &= bitmask; + + elfcpp::Swap<valsize, big_endian>::writeval(wv, reloc << doffset); + } + + template<int valsize> + static inline void + pcrela(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Swap<size, big_endian>::Valtype addend, + typename elfcpp::Elf_types<size>::Elf_Addr address, + elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1, + elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2, + elfcpp::Elf_Xword bitmask2) + + { + typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; + Valtype* wv = reinterpret_cast<Valtype*>(view); + Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); + Valtype reloc = 0; + if (size == 32) + reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) + >> srshift; + else + reloc = (psymval->value(object, addend) - address) >> srshift; + + elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1) + | (bitmask2 << doffset2); + val &= ~dst_mask; + reloc = ((reloc & bitmask1) << doffset1) + | ((reloc & bitmask2) << doffset2); + + elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); + } + + typedef Tilegx_relocate_functions<size, big_endian> This; + typedef Relocate_functions<size, big_endian> Base; + +public: + + static inline void + abs64(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend) + { + This::template rela_ua<64>(view, object, psymval, addend, 0, 0, + 0xffffffffffffffffllu); + } + + static inline void + abs32(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend) + { + This::template rela_ua<32>(view, object, psymval, addend, 0, 0, + 0xffffffff); + } + + static inline void + abs16(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend) + { + This::template rela_ua<16>(view, object, psymval, addend, 0, 0, + 0xffff); + } + + static inline void + pc_abs64(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + typename elfcpp::Elf_types<size>::Elf_Addr address) + { + This::template pcrela_ua<64>(view, object, psymval, addend, address, 0, 0, + 0xffffffffffffffffllu); + } + + static inline void + pc_abs32(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + typename elfcpp::Elf_types<size>::Elf_Addr address) + { + This::template pcrela_ua<32>(view, object, psymval, addend, address, 0, 0, + 0xffffffff); + } + + static inline void + pc_abs16(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + typename elfcpp::Elf_types<size>::Elf_Addr address) + { + This::template pcrela_ua<16>(view, object, psymval, addend, address, 0, 0, + 0xffff); + } + + static inline void + imm_x_general(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + Tilegx_howto &r_howto) + { + This::template rela<64>(view, object, psymval, addend, + (elfcpp::Elf_Xword)(r_howto.srshift), + (elfcpp::Elf_Xword)(r_howto.doffset), + (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1)); + } + + static inline void + imm_x_pcrel_general(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + typename elfcpp::Elf_types<size>::Elf_Addr address, + Tilegx_howto &r_howto) + { + This::template pcrela<64>(view, object, psymval, addend, address, + (elfcpp::Elf_Xword)(r_howto.srshift), + (elfcpp::Elf_Xword)(r_howto.doffset), + (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1)); + } + + static inline void + imm_x_two_part_general(unsigned char* view, + const Sized_relobj_file<size, big_endian>* object, + const Symbol_value<size>* psymval, + typename elfcpp::Elf_types<size>::Elf_Addr addend, + typename elfcpp::Elf_types<size>::Elf_Addr address, + unsigned int r_type) + { + + elfcpp::Elf_Xword doffset1 = 0llu; + elfcpp::Elf_Xword doffset2 = 0llu; + elfcpp::Elf_Xword dmask1 = 0llu; + elfcpp::Elf_Xword dmask2 = 0llu; + elfcpp::Elf_Xword rshift = 0llu; + unsigned int pc_rel = 0; + + switch (r_type) + { + case elfcpp::R_TILEGX_BROFF_X1: + doffset1 = 31llu; + doffset2 = 37llu; + dmask1 = 0x3fllu; + dmask2 = 0x1ffc0llu; + rshift = 3llu; + pc_rel = 1; + break; + case elfcpp::R_TILEGX_DEST_IMM8_X1: + doffset1 = 31llu; + doffset2 = 43llu; + dmask1 = 0x3fllu; + dmask2 = 0xc0llu; + rshift = 0llu; + break; + } + + if (pc_rel) + This::template pcrela<64>(view, object, psymval, addend, address, + rshift, doffset1, dmask1, doffset2, dmask2); + else + This::template rela<64>(view, object, psymval, addend, rshift, + doffset1, dmask1, doffset2, dmask2); + + } + + static inline void + tls_relax(unsigned char* view, unsigned int r_type, + tls::Tls_optimization opt_t) + { + + const uint64_t TILEGX_X_MOVE_R0_R0 = 0x283bf8005107f000llu; + const uint64_t TILEGX_Y_MOVE_R0_R0 = 0xae05f800540bf000llu; + const uint64_t TILEGX_X_LD = 0x286ae80000000000llu; + const uint64_t TILEGX_X_LD4S = 0x286a980000000000llu; + const uint64_t TILEGX_X1_FULL_MASK = 0x3fffffff80000000llu; + const uint64_t TILEGX_X0_RRR_MASK = 0x000000007ffc0000llu; + const uint64_t TILEGX_X1_RRR_MASK = 0x3ffe000000000000llu; + const uint64_t TILEGX_Y0_RRR_MASK = 0x00000000780c0000llu; + const uint64_t TILEGX_Y1_RRR_MASK = 0x3c06000000000000llu; + const uint64_t TILEGX_X0_RRR_SRCB_MASK = 0x000000007ffff000llu; + const uint64_t TILEGX_X1_RRR_SRCB_MASK = 0x3ffff80000000000llu; + const uint64_t TILEGX_Y0_RRR_SRCB_MASK = 0x00000000780ff000llu; + const uint64_t TILEGX_Y1_RRR_SRCB_MASK = 0x3c07f80000000000llu; + const uint64_t TILEGX_X_ADD_R0_R0_TP = 0x2807a800500f5000llu; + const uint64_t TILEGX_Y_ADD_R0_R0_TP = 0x9a13a8002c275000llu; + const uint64_t TILEGX_X_ADDX_R0_R0_TP = 0x2805a800500b5000llu; + const uint64_t TILEGX_Y_ADDX_R0_R0_TP = 0x9a01a8002c035000llu; + + const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_MASK = + (TILEGX_X0_RRR_MASK | (0x3Fllu << 12)); + + const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_MASK = + (TILEGX_X1_RRR_MASK | (0x3Fllu << 43)); + + const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_MASK = + (TILEGX_Y0_RRR_MASK | (0x3Fllu << 12)); + + const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_MASK = + (TILEGX_Y1_RRR_MASK | (0x3Fllu << 43)); + + const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK = + (TILEGX_X0_RRR_SRCB_MASK | (0x3Fllu << 6)); + + const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK = + (TILEGX_X1_RRR_SRCB_MASK | (0x3Fllu << 37)); + + const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK = + (TILEGX_Y0_RRR_SRCB_MASK | (0x3Fllu << 6)); + + const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK = + (TILEGX_Y1_RRR_SRCB_MASK | (0x3Fllu << 37)); + + typedef typename elfcpp::Swap<64, big_endian>::Valtype Valtype; + Valtype* wv = reinterpret_cast<Valtype*>(view); + Valtype val = elfcpp::Swap<64, big_endian>::readval(wv); + Valtype reloc = 0; + + switch (r_type) + { + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + if (opt_t == tls::TLSOPT_NONE) { + // GD/IE: 1. copy dest operand into the second source operand + // 2. change the opcode to "add" + reloc = (val & 0x3Fllu) << 12; // featch the dest reg + reloc |= ((size == 32 + ? TILEGX_X_ADDX_R0_R0_TP + : TILEGX_X_ADD_R0_R0_TP) + & TILEGX_X0_RRR_MASK); // change opcode + val &= ~R_TILEGX_IMM8_X0_TLS_ADD_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + // LE: 1. copy dest operand into the first source operand + // 2. change the opcode to "move" + reloc = (val & 0x3Fllu) << 6; + reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK); + val &= ~R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK; + } else + gold_unreachable(); + break; + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = (val & (0x3Fllu << 31)) << 12; + reloc |= ((size == 32 + ? TILEGX_X_ADDX_R0_R0_TP + : TILEGX_X_ADD_R0_R0_TP) + & TILEGX_X1_RRR_MASK); + val &= ~R_TILEGX_IMM8_X1_TLS_ADD_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + reloc = (val & (0x3Fllu << 31)) << 6; + reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK); + val &= ~R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK; + } else + gold_unreachable(); + break; + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = (val & 0x3Fllu) << 12; + reloc |= ((size == 32 + ? TILEGX_Y_ADDX_R0_R0_TP + : TILEGX_Y_ADD_R0_R0_TP) + & TILEGX_Y0_RRR_MASK); + val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + reloc = (val & 0x3Fllu) << 6; + reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK); + val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK; + } else + gold_unreachable(); + break; + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = (val & (0x3Fllu << 31)) << 12; + reloc |= ((size == 32 + ? TILEGX_Y_ADDX_R0_R0_TP + : TILEGX_Y_ADD_R0_R0_TP) + & TILEGX_Y1_RRR_MASK); + val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + reloc = (val & (0x3Fllu << 31)) << 6; + reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK); + val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK; + } else + gold_unreachable(); + break; + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + if (opt_t == tls::TLSOPT_NONE) { + // GD see comments for optimize_tls_reloc + reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK; + val &= ~TILEGX_X0_RRR_SRCB_MASK; + } else if (opt_t == tls::TLSOPT_TO_IE + || opt_t == tls::TLSOPT_TO_LE) { + // IE/LE + reloc = (size == 32 + ? TILEGX_X_ADDX_R0_R0_TP + : TILEGX_X_ADD_R0_R0_TP) + & TILEGX_X0_RRR_SRCB_MASK; + val &= ~TILEGX_X0_RRR_SRCB_MASK; + } + break; + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK; + val &= ~TILEGX_X1_RRR_SRCB_MASK; + } else if (opt_t == tls::TLSOPT_TO_IE + || opt_t == tls::TLSOPT_TO_LE) { + reloc = (size == 32 + ? TILEGX_X_ADDX_R0_R0_TP + : TILEGX_X_ADD_R0_R0_TP) + & TILEGX_X1_RRR_SRCB_MASK; + val &= ~TILEGX_X1_RRR_SRCB_MASK; + } + break; + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK; + val &= ~TILEGX_Y0_RRR_SRCB_MASK; + } else if (opt_t == tls::TLSOPT_TO_IE + || opt_t == tls::TLSOPT_TO_LE) { + reloc = (size == 32 + ? TILEGX_Y_ADDX_R0_R0_TP + : TILEGX_Y_ADD_R0_R0_TP) + & TILEGX_Y0_RRR_SRCB_MASK; + val &= ~TILEGX_Y0_RRR_SRCB_MASK; + } + break; + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + if (opt_t == tls::TLSOPT_NONE) { + reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK; + val &= ~TILEGX_Y1_RRR_SRCB_MASK; + } else if (opt_t == tls::TLSOPT_TO_IE + || opt_t == tls::TLSOPT_TO_LE) { + reloc = (size == 32 + ? TILEGX_Y_ADDX_R0_R0_TP + : TILEGX_Y_ADD_R0_R0_TP) + & TILEGX_Y1_RRR_SRCB_MASK; + val &= ~TILEGX_Y1_RRR_SRCB_MASK; + } + break; + case elfcpp::R_TILEGX_TLS_IE_LOAD: + if (opt_t == tls::TLSOPT_NONE) { + // IE + reloc = (size == 32 + ? TILEGX_X_LD4S + : TILEGX_X_LD) + & TILEGX_X1_RRR_SRCB_MASK; + val &= ~TILEGX_X1_RRR_SRCB_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + // LE + reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK; + val &= ~TILEGX_X1_RRR_SRCB_MASK; + } else + gold_unreachable(); + break; + case elfcpp::R_TILEGX_TLS_GD_CALL: + if (opt_t == tls::TLSOPT_TO_IE) { + // ld/ld4s r0, r0 + reloc = (size == 32 + ? TILEGX_X_LD4S + : TILEGX_X_LD) & TILEGX_X1_FULL_MASK; + val &= ~TILEGX_X1_FULL_MASK; + } else if (opt_t == tls::TLSOPT_TO_LE) { + // move r0, r0 + reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_FULL_MASK; + val &= ~TILEGX_X1_FULL_MASK; + } else + // should be handled in ::relocate + gold_unreachable(); + break; + default: + gold_unreachable(); + break; + } + elfcpp::Swap<64, big_endian>::writeval(wv, val | reloc); + } +}; + +template<> +const Tilegx_relocate_functions<64, false>::Tilegx_howto +Tilegx_relocate_functions<64, false>::howto[elfcpp::R_TILEGX_NUM] = +{ + { 0, 0, 0, 0, 0}, // R_TILEGX_NONE + { 0, 0, 0, 64, 0}, // R_TILEGX_64 + { 0, 0, 0, 32, 0}, // R_TILEGX_32 + { 0, 0, 0, 16, 0}, // R_TILEGX_16 + { 0, 0, 0, 8, 0}, // R_TILEGX_8 + { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL + { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL + { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL + { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 + { 32, 0, 0, 0, 0}, // R_TILEGX_HW2 + { 48, 0, 0, 0, 0}, // R_TILEGX_HW3 + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST + { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST + { 0, 0, 0, 0, 0}, // R_TILEGX_COPY + { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT + { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT + { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE + { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 + { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 + { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 + { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 + { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 + { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 + { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 + { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST + { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST + { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL + { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL + { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL + { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL + { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL + { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL + { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL + { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL + { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT + { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT + { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD + { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL + { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL + { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 + { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY +}; + +template<> +const Tilegx_relocate_functions<32, false>::Tilegx_howto +Tilegx_relocate_functions<32, false>::howto[elfcpp::R_TILEGX_NUM] = +{ + { 0, 0, 0, 0, 0}, // R_TILEGX_NONE + { 0, 0, 0, 64, 0}, // R_TILEGX_64 + { 0, 0, 0, 32, 0}, // R_TILEGX_32 + { 0, 0, 0, 16, 0}, // R_TILEGX_16 + { 0, 0, 0, 8, 0}, // R_TILEGX_8 + { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL + { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL + { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL + { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 + { 31, 0, 0, 0, 0}, // R_TILEGX_HW2 + { 31, 0, 0, 0, 0}, // R_TILEGX_HW3 + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST + { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST + { 0, 0, 0, 0, 0}, // R_TILEGX_COPY + { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT + { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT + { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE + { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 + { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 + { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 + { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 + { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 + { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 + { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 + { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST + { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST + { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL + { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL + { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT + { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT + { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD + { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL + { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL + { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 + { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY +}; + +template<> +const Tilegx_relocate_functions<64, true>::Tilegx_howto +Tilegx_relocate_functions<64, true>::howto[elfcpp::R_TILEGX_NUM] = +{ + { 0, 0, 0, 0, 0}, // R_TILEGX_NONE + { 0, 0, 0, 64, 0}, // R_TILEGX_64 + { 0, 0, 0, 32, 0}, // R_TILEGX_32 + { 0, 0, 0, 16, 0}, // R_TILEGX_16 + { 0, 0, 0, 8, 0}, // R_TILEGX_8 + { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL + { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL + { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL + { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 + { 32, 0, 0, 0, 0}, // R_TILEGX_HW2 + { 48, 0, 0, 0, 0}, // R_TILEGX_HW3 + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST + { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST + { 0, 0, 0, 0, 0}, // R_TILEGX_COPY + { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT + { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT + { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE + { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 + { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 + { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 + { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 + { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 + { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 + { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 + { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST + { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST + { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL + { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL + { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL + { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL + { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL + { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL + { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL + { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL + { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT + { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT + { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD + { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL + { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL + { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 + { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY +}; + +template<> +const Tilegx_relocate_functions<32, true>::Tilegx_howto +Tilegx_relocate_functions<32, true>::howto[elfcpp::R_TILEGX_NUM] = +{ + { 0, 0, 0, 0, 0}, // R_TILEGX_NONE + { 0, 0, 0, 64, 0}, // R_TILEGX_64 + { 0, 0, 0, 32, 0}, // R_TILEGX_32 + { 0, 0, 0, 16, 0}, // R_TILEGX_16 + { 0, 0, 0, 8, 0}, // R_TILEGX_8 + { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL + { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL + { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL + { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 + { 31, 0, 0, 0, 0}, // R_TILEGX_HW2 + { 31, 0, 0, 0, 0}, // R_TILEGX_HW3 + { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST + { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST + { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST + { 0, 0, 0, 0, 0}, // R_TILEGX_COPY + { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT + { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT + { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE + { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 + { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 + { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 + { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 + { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 + { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 + { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 + { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 + { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 + { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST + { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST + { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL + { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL + { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT + { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL + { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL + { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL + { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL + { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL + { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT + { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT + { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD + { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE + { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE + { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL + { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL + { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL + { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL + { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL + { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL + { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE + { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE + { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE + { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 + { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT + { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY +}; + +// Get the GOT section, creating it if necessary. + +template<int size, bool big_endian> +Output_data_got<size, big_endian>* +Target_tilegx<size, big_endian>::got_section(Symbol_table* symtab, + Layout* layout) +{ + if (this->got_ == NULL) + { + gold_assert(symtab != NULL && layout != NULL); + + // When using -z now, we can treat .got.plt as a relro section. + // Without -z now, it is modified after program startup by lazy + // PLT relocations. + bool is_got_plt_relro = parameters->options().now(); + Output_section_order got_order = (is_got_plt_relro + ? ORDER_RELRO + : ORDER_RELRO_LAST); + Output_section_order got_plt_order = (is_got_plt_relro + ? ORDER_RELRO + : ORDER_NON_RELRO_FIRST); + + this->got_ = new Output_data_got<size, big_endian>(); + + layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_WRITE), + this->got_, got_order, true); + + // Define _GLOBAL_OFFSET_TABLE_ at the start of the PLT. + this->global_offset_table_ = + symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, + Symbol_table::PREDEFINED, + this->got_, + 0, 0, elfcpp::STT_OBJECT, + elfcpp::STB_LOCAL, + elfcpp::STV_HIDDEN, 0, + false, false); + + if (parameters->options().shared()) { + // we need to keep the address of .dynamic section in the + // first got entry for .so + this->tilegx_dynamic_ = + symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL, + Symbol_table::PREDEFINED, + layout->dynamic_section(), + 0, 0, elfcpp::STT_OBJECT, + elfcpp::STB_LOCAL, + elfcpp::STV_HIDDEN, 0, + false, false); + + this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD); + } else + // for executable, just set the first entry to zero. + this->got_->set_current_data_size(size / 8); + + this->got_plt_ = new Output_data_space(size / 8, "** GOT PLT"); + layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_WRITE), + this->got_plt_, got_plt_order, + is_got_plt_relro); + + // The first two entries are reserved. + this->got_plt_->set_current_data_size + (TILEGX_GOTPLT_RESERVE_COUNT * (size / 8)); + + if (!is_got_plt_relro) + { + // Those bytes can go into the relro segment. + layout->increase_relro(size / 8); + } + + + // If there are any IRELATIVE relocations, they get GOT entries + // in .got.plt after the jump slot entries. + this->got_irelative_ + = new Output_data_space(size / 8, "** GOT IRELATIVE PLT"); + layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_WRITE), + this->got_irelative_, + got_plt_order, is_got_plt_relro); + } + + return this->got_; +} + +// Get the dynamic reloc section, creating it if necessary. + +template<int size, bool big_endian> +typename Target_tilegx<size, big_endian>::Reloc_section* +Target_tilegx<size, big_endian>::rela_dyn_section(Layout* layout) +{ + if (this->rela_dyn_ == NULL) + { + gold_assert(layout != NULL); + this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); + layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, + elfcpp::SHF_ALLOC, this->rela_dyn_, + ORDER_DYNAMIC_RELOCS, false); + } + return this->rela_dyn_; +} + +// Get the section to use for IRELATIVE relocs, creating it if +// necessary. These go in .rela.dyn, but only after all other dynamic +// relocations. They need to follow the other dynamic relocations so +// that they can refer to global variables initialized by those +// relocs. + +template<int size, bool big_endian> +typename Target_tilegx<size, big_endian>::Reloc_section* +Target_tilegx<size, big_endian>::rela_irelative_section(Layout* layout) +{ + if (this->rela_irelative_ == NULL) + { + // Make sure we have already created the dynamic reloc section. + this->rela_dyn_section(layout); + this->rela_irelative_ = new Reloc_section(false); + layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, + elfcpp::SHF_ALLOC, this->rela_irelative_, + ORDER_DYNAMIC_RELOCS, false); + gold_assert(this->rela_dyn_->output_section() + == this->rela_irelative_->output_section()); + } + return this->rela_irelative_; +} + +// Initialize the PLT section. + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::init(Layout* layout) +{ + this->rel_ = new Reloc_section(false); + layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, + elfcpp::SHF_ALLOC, this->rel_, + ORDER_DYNAMIC_PLT_RELOCS, false); +} + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::do_adjust_output_section( + Output_section* os) +{ + os->set_entsize(this->get_plt_entry_size()); +} + +// Add an entry to the PLT. + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::add_entry(Symbol_table* symtab, + Layout* layout, Symbol* gsym) +{ + gold_assert(!gsym->has_plt_offset()); + + unsigned int plt_index; + off_t plt_offset; + section_offset_type got_offset; + + unsigned int* pcount; + unsigned int reserved; + Output_data_space* got; + if (gsym->type() == elfcpp::STT_GNU_IFUNC + && gsym->can_use_relative_reloc(false)) + { + pcount = &this->irelative_count_; + reserved = 0; + got = this->got_irelative_; + } + else + { + pcount = &this->count_; + reserved = TILEGX_GOTPLT_RESERVE_COUNT; + got = this->got_plt_; + } + + if (!this->is_data_size_valid()) + { + plt_index = *pcount; + + // TILEGX .plt section layout + // + // ---- + // plt_header + // ---- + // plt stub + // ---- + // ... + // ---- + // + // TILEGX .got.plt section layout + // + // ---- + // reserv1 + // ---- + // reserv2 + // ---- + // entries for normal function + // ---- + // ... + // ---- + // entries for ifunc + // ---- + // ... + // ---- + if (got == this->got_irelative_) + plt_offset = plt_index * this->get_plt_entry_size(); + else + plt_offset = (plt_index + 1) * this->get_plt_entry_size(); + + ++*pcount; + + got_offset = (plt_index + reserved) * (size / 8); + gold_assert(got_offset == got->current_data_size()); + + // Every PLT entry needs a GOT entry which points back to the PLT + // entry (this will be changed by the dynamic linker, normally + // lazily when the function is called). + got->set_current_data_size(got_offset + size / 8); + } + else + { + // FIXME: This is probably not correct for IRELATIVE relocs. + + // For incremental updates, find an available slot. + plt_offset = this->free_list_.allocate(this->get_plt_entry_size(), + this->get_plt_entry_size(), 0); + if (plt_offset == -1) + gold_fallback(_("out of patch space (PLT);" + " relink with --incremental-full")); + + // The GOT and PLT entries have a 1-1 correspondance, so the GOT offset + // can be calculated from the PLT index, adjusting for the three + // reserved entries at the beginning of the GOT. + plt_index = plt_offset / this->get_plt_entry_size() - 1; + got_offset = (plt_index + reserved) * (size / 8); + } + + gsym->set_plt_offset(plt_offset); + + // Every PLT entry needs a reloc. + this->add_relocation(symtab, layout, gsym, got_offset); + + // Note that we don't need to save the symbol. The contents of the + // PLT are independent of which symbols are used. The symbols only + // appear in the relocations. +} + +// Add an entry to the PLT for a local STT_GNU_IFUNC symbol. Return +// the PLT offset. + +template<int size, bool big_endian> +unsigned int +Output_data_plt_tilegx<size, big_endian>::add_local_ifunc_entry( + Symbol_table* symtab, + Layout* layout, + Sized_relobj_file<size, big_endian>* relobj, + unsigned int local_sym_index) +{ + unsigned int plt_offset = + this->irelative_count_ * this->get_plt_entry_size(); + ++this->irelative_count_; + + section_offset_type got_offset = this->got_irelative_->current_data_size(); + + // Every PLT entry needs a GOT entry which points back to the PLT + // entry. + this->got_irelative_->set_current_data_size(got_offset + size / 8); + + // Every PLT entry needs a reloc. + Reloc_section* rela = this->rela_irelative(symtab, layout); + rela->add_symbolless_local_addend(relobj, local_sym_index, + elfcpp::R_TILEGX_IRELATIVE, + this->got_irelative_, got_offset, 0); + + return plt_offset; +} + +// Add the relocation for a PLT entry. + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::add_relocation(Symbol_table* symtab, + Layout* layout, + Symbol* gsym, + unsigned int got_offset) +{ + if (gsym->type() == elfcpp::STT_GNU_IFUNC + && gsym->can_use_relative_reloc(false)) + { + Reloc_section* rela = this->rela_irelative(symtab, layout); + rela->add_symbolless_global_addend(gsym, elfcpp::R_TILEGX_IRELATIVE, + this->got_irelative_, got_offset, 0); + } + else + { + gsym->set_needs_dynsym_entry(); + this->rel_->add_global(gsym, elfcpp::R_TILEGX_JMP_SLOT, this->got_plt_, + got_offset, 0); + } +} + +// Return where the IRELATIVE relocations should go in the PLT. These +// follow the JUMP_SLOT and the TLSDESC relocations. + +template<int size, bool big_endian> +typename Output_data_plt_tilegx<size, big_endian>::Reloc_section* +Output_data_plt_tilegx<size, big_endian>::rela_irelative(Symbol_table* symtab, + Layout* layout) +{ + if (this->irelative_rel_ == NULL) + { + // case we see any later on. + this->irelative_rel_ = new Reloc_section(false); + layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, + elfcpp::SHF_ALLOC, this->irelative_rel_, + ORDER_DYNAMIC_PLT_RELOCS, false); + gold_assert(this->irelative_rel_->output_section() + == this->rel_->output_section()); + + if (parameters->doing_static_link()) + { + // A statically linked executable will only have a .rela.plt + // section to hold R_TILEGX_IRELATIVE relocs for + // STT_GNU_IFUNC symbols. The library will use these + // symbols to locate the IRELATIVE relocs at program startup + // time. + symtab->define_in_output_data("__rela_iplt_start", NULL, + Symbol_table::PREDEFINED, + this->irelative_rel_, 0, 0, + elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, + elfcpp::STV_HIDDEN, 0, false, true); + symtab->define_in_output_data("__rela_iplt_end", NULL, + Symbol_table::PREDEFINED, + this->irelative_rel_, 0, 0, + elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, + elfcpp::STV_HIDDEN, 0, true, true); + } + } + return this->irelative_rel_; +} + +// Return the PLT address to use for a global symbol. + +template<int size, bool big_endian> +uint64_t +Output_data_plt_tilegx<size, big_endian>::address_for_global( + const Symbol* gsym) +{ + uint64_t offset = 0; + if (gsym->type() == elfcpp::STT_GNU_IFUNC + && gsym->can_use_relative_reloc(false)) + offset = (this->count_ + 1) * this->get_plt_entry_size(); + return this->address() + offset; +} + +// Return the PLT address to use for a local symbol. These are always +// IRELATIVE relocs. + +template<int size, bool big_endian> +uint64_t +Output_data_plt_tilegx<size, big_endian>::address_for_local(const Relobj*, + unsigned int) +{ + return this->address() + (this->count_ + 1) * this->get_plt_entry_size(); +} + +// Set the final size. +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::set_final_data_size() +{ + unsigned int count = this->count_ + this->irelative_count_; + this->set_data_size((count + 1) * this->get_plt_entry_size()); +} + +// The first entry in the PLT for an executable. +template<> +const unsigned char +Output_data_plt_tilegx<64, false>::first_plt_entry[plt_entry_size] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 } + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 } + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } + // padding + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 +}; + +template<> +const unsigned char +Output_data_plt_tilegx<32, false>::first_plt_entry[plt_entry_size] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 } + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 } + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } + // padding + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 +}; + +template<> +const unsigned char +Output_data_plt_tilegx<64, true>::first_plt_entry[plt_entry_size] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 } + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 } + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } + // padding + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 +}; + +template<> +const unsigned char +Output_data_plt_tilegx<32, true>::first_plt_entry[plt_entry_size] = +{ + 0x00, 0x30, 0x48, 0x51, + 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 } + 0x00, 0x30, 0xbc, 0x35, + 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 } + 0xff, 0xaf, 0x30, 0x40, + 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } + // padding + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00 +}; + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::fill_first_plt_entry( + unsigned char* pov) +{ + memcpy(pov, first_plt_entry, plt_entry_size); +} + +// Subsequent entries in the PLT for an executable. + +template<> +const unsigned char +Output_data_plt_tilegx<64, false>::plt_entry[plt_entry_size] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 } + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } + +}; + +template<> +const unsigned char +Output_data_plt_tilegx<32, false>::plt_entry[plt_entry_size] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } +}; + +template<> +const unsigned char +Output_data_plt_tilegx<64, true>::plt_entry[plt_entry_size] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 } + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } + +}; + +template<> +const unsigned char +Output_data_plt_tilegx<32, true>::plt_entry[plt_entry_size] = +{ + 0xdc, 0x0f, 0x00, 0x10, + 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } + 0xdb, 0x0f, 0x00, 0x10, + 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } + 0x9c, 0xc6, 0x0d, 0xd0, + 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } + 0x9b, 0xb6, 0xc5, 0xad, + 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } + 0xdd, 0x0f, 0x00, 0x70, + 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } +}; + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::fill_plt_entry( + unsigned char* pov, + typename elfcpp::Elf_types<size>::Elf_Addr gotplt_base, + unsigned int got_offset, + typename elfcpp::Elf_types<size>::Elf_Addr plt_base, + unsigned int plt_offset, unsigned int plt_index) +{ + + const uint32_t TILEGX_IMM16_MASK = 0xFFFF; + const uint32_t TILEGX_X0_IMM16_BITOFF = 12; + const uint32_t TILEGX_X1_IMM16_BITOFF = 43; + + typedef typename elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::Valtype + Valtype; + memcpy(pov, plt_entry, plt_entry_size); + + // first bundle in plt stub - x0 + Valtype* wv = reinterpret_cast<Valtype*>(pov); + Valtype val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); + Valtype reloc = + ((gotplt_base + got_offset) - (plt_base + plt_offset + 8)) >> 16; + elfcpp::Elf_Xword dst_mask = + (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; + val &= ~dst_mask; + reloc &= TILEGX_IMM16_MASK; + elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, + val | (reloc<<TILEGX_X0_IMM16_BITOFF)); + + // second bundle in plt stub - x1 + wv = reinterpret_cast<Valtype*>(pov + 8); + val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); + reloc = (gotplt_base + got_offset) - (plt_base + plt_offset + 8); + dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF; + val &= ~dst_mask; + reloc &= TILEGX_IMM16_MASK; + elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, + val | (reloc<<TILEGX_X1_IMM16_BITOFF)); + + // second bundle in plt stub - x0 + wv = reinterpret_cast<Valtype*>(pov + 8); + val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); + reloc = (gotplt_base - (plt_base + plt_offset + 8)) >> 16; + dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; + val &= ~dst_mask; + reloc &= TILEGX_IMM16_MASK; + elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, + val | (reloc<<TILEGX_X0_IMM16_BITOFF)); + + // third bundle in plt stub - x1 + wv = reinterpret_cast<Valtype*>(pov + 16); + val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); + reloc = gotplt_base - (plt_base + plt_offset + 8); + dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF; + val &= ~dst_mask; + reloc &= TILEGX_IMM16_MASK; + elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, + val | (reloc<<TILEGX_X1_IMM16_BITOFF)); + + // fifth bundle in plt stub - carry plt_index x0 + wv = reinterpret_cast<Valtype*>(pov + 32); + val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); + dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; + val &= ~dst_mask; + plt_index &= TILEGX_IMM16_MASK; + elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, + val | (plt_index<<TILEGX_X0_IMM16_BITOFF)); + +} + +// Write out the PLT. This uses the hand-coded instructions above. + +template<int size, bool big_endian> +void +Output_data_plt_tilegx<size, big_endian>::do_write(Output_file* of) +{ + const off_t offset = this->offset(); + const section_size_type oview_size = + convert_to_section_size_type(this->data_size()); + unsigned char* const oview = of->get_output_view(offset, oview_size); + + const off_t got_file_offset = this->got_plt_->offset(); + gold_assert(parameters->incremental_update() + || (got_file_offset + this->got_plt_->data_size() + == this->got_irelative_->offset())); + const section_size_type got_size = + convert_to_section_size_type(this->got_plt_->data_size() + + this->got_irelative_->data_size()); + unsigned char* const got_view = of->get_output_view(got_file_offset, + got_size); + + unsigned char* pov = oview; + + // The base address of the .plt section. + typename elfcpp::Elf_types<size>::Elf_Addr plt_address = this->address(); + typename elfcpp::Elf_types<size>::Elf_Addr got_address = + this->got_plt_->address(); + + this->fill_first_plt_entry(pov); + pov += this->get_plt_entry_size(); + + unsigned char* got_pov = got_view; + + // first entry of .got.plt are set to -1 + // second entry of .got.plt are set to 0 + memset(got_pov, 0xff, size / 8); + got_pov += size / 8; + memset(got_pov, 0x0, size / 8); + got_pov += size / 8; + + unsigned int plt_offset = this->get_plt_entry_size(); + const unsigned int count = this->count_ + this->irelative_count_; + unsigned int got_offset = (size / 8) * TILEGX_GOTPLT_RESERVE_COUNT; + for (unsigned int plt_index = 0; + plt_index < count; + ++plt_index, + pov += this->get_plt_entry_size(), + got_pov += size / 8, + plt_offset += this->get_plt_entry_size(), + got_offset += size / 8) + { + // Set and adjust the PLT entry itself. + this->fill_plt_entry(pov, got_address, got_offset, + plt_address, plt_offset, plt_index); + + // Initialize entry in .got.plt to plt start address + elfcpp::Swap<size, big_endian>::writeval(got_pov, plt_address); + } + + gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); + gold_assert(static_cast<section_size_type>(got_pov - got_view) == got_size); + + of->write_output_view(offset, oview_size, oview); + of->write_output_view(got_file_offset, got_size, got_view); +} + +// Create the PLT section. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::make_plt_section(Symbol_table* symtab, + Layout* layout) +{ + if (this->plt_ == NULL) + { + // Create the GOT sections first. + this->got_section(symtab, layout); + + // Ensure that .rela.dyn always appears before .rela.plt, + // becuase on TILE-Gx, .rela.dyn needs to include .rela.plt + // in it's range. + this->rela_dyn_section(layout); + + this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout, + TILEGX_INST_BUNDLE_SIZE, this->got_, this->got_plt_, + this->got_irelative_); + + layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_EXECINSTR), + this->plt_, ORDER_NON_RELRO_FIRST, + false); + + // Make the sh_info field of .rela.plt point to .plt. + Output_section* rela_plt_os = this->plt_->rela_plt()->output_section(); + rela_plt_os->set_info_section(this->plt_->output_section()); + } +} + +// Create a PLT entry for a global symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::make_plt_entry(Symbol_table* symtab, + Layout* layout, Symbol* gsym) +{ + if (gsym->has_plt_offset()) + return; + + if (this->plt_ == NULL) + this->make_plt_section(symtab, layout); + + this->plt_->add_entry(symtab, layout, gsym); +} + +// Make a PLT entry for a local STT_GNU_IFUNC symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::make_local_ifunc_plt_entry( + Symbol_table* symtab, Layout* layout, + Sized_relobj_file<size, big_endian>* relobj, + unsigned int local_sym_index) +{ + if (relobj->local_has_plt_offset(local_sym_index)) + return; + if (this->plt_ == NULL) + this->make_plt_section(symtab, layout); + unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, + relobj, + local_sym_index); + relobj->set_local_plt_offset(local_sym_index, plt_offset); +} + +// Return the number of entries in the PLT. + +template<int size, bool big_endian> +unsigned int +Target_tilegx<size, big_endian>::plt_entry_count() const +{ + if (this->plt_ == NULL) + return 0; + return this->plt_->entry_count(); +} + +// Return the offset of the first non-reserved PLT entry. + +template<int size, bool big_endian> +unsigned int +Target_tilegx<size, big_endian>::first_plt_entry_offset() const +{ + return this->plt_->first_plt_entry_offset(); +} + +// Return the size of each PLT entry. + +template<int size, bool big_endian> +unsigned int +Target_tilegx<size, big_endian>::plt_entry_size() const +{ + return this->plt_->get_plt_entry_size(); +} + +// Create the GOT and PLT sections for an incremental update. + +template<int size, bool big_endian> +Output_data_got_base* +Target_tilegx<size, big_endian>::init_got_plt_for_update(Symbol_table* symtab, + Layout* layout, + unsigned int got_count, + unsigned int plt_count) +{ + gold_assert(this->got_ == NULL); + + this->got_ = + new Output_data_got<size, big_endian>((got_count + + TILEGX_GOT_RESERVE_COUNT) + * (size / 8)); + layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_WRITE), + this->got_, ORDER_RELRO_LAST, + true); + + // Define _GLOBAL_OFFSET_TABLE_ at the start of the GOT. + this->global_offset_table_ = + symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, + Symbol_table::PREDEFINED, + this->got_, + 0, 0, elfcpp::STT_OBJECT, + elfcpp::STB_LOCAL, + elfcpp::STV_HIDDEN, 0, + false, false); + + if (parameters->options().shared()) { + this->tilegx_dynamic_ = + symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL, + Symbol_table::PREDEFINED, + layout->dynamic_section(), + 0, 0, elfcpp::STT_OBJECT, + elfcpp::STB_LOCAL, + elfcpp::STV_HIDDEN, 0, + false, false); + + this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD); + } else + this->got_->set_current_data_size(size / 8); + + // Add the two reserved entries. + this->got_plt_ + = new Output_data_space((plt_count + TILEGX_GOTPLT_RESERVE_COUNT) + * (size / 8), size / 8, "** GOT PLT"); + layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, + (elfcpp::SHF_ALLOC + | elfcpp::SHF_WRITE), + this->got_plt_, ORDER_NON_RELRO_FIRST, + false); + + // If there are any IRELATIVE relocations, they get GOT entries in + // .got.plt after the jump slot. + this->got_irelative_ + = new Output_data_space(0, size / 8, "** GOT IRELATIVE PLT"); + layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, + elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE, + this->got_irelative_, + ORDER_NON_RELRO_FIRST, false); + + // Create the PLT section. + this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout, + this->plt_entry_size(), this->got_, this->got_plt_, this->got_irelative_, + plt_count); + + layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, + elfcpp::SHF_ALLOC | elfcpp::SHF_EXECINSTR, + this->plt_, ORDER_PLT, false); + + // Make the sh_info field of .rela.plt point to .plt. + Output_section* rela_plt_os = this->plt_->rela_plt()->output_section(); + rela_plt_os->set_info_section(this->plt_->output_section()); + + // Create the rela_dyn section. + this->rela_dyn_section(layout); + + return this->got_; +} + +// Reserve a GOT entry for a local symbol, and regenerate any +// necessary dynamic relocations. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::reserve_local_got_entry( + unsigned int got_index, + Sized_relobj<size, big_endian>* obj, + unsigned int r_sym, + unsigned int got_type) +{ + unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT) + * (size / 8); + Reloc_section* rela_dyn = this->rela_dyn_section(NULL); + + this->got_->reserve_local(got_index, obj, r_sym, got_type); + switch (got_type) + { + case GOT_TYPE_STANDARD: + if (parameters->options().output_is_position_independent()) + rela_dyn->add_local_relative(obj, r_sym, elfcpp::R_TILEGX_RELATIVE, + this->got_, got_offset, 0, false); + break; + case GOT_TYPE_TLS_OFFSET: + rela_dyn->add_local(obj, r_sym, + size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32 + : elfcpp::R_TILEGX_TLS_DTPOFF64, + this->got_, got_offset, 0); + break; + case GOT_TYPE_TLS_PAIR: + this->got_->reserve_slot(got_index + 1); + rela_dyn->add_local(obj, r_sym, + size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 + : elfcpp::R_TILEGX_TLS_DTPMOD64, + this->got_, got_offset, 0); + break; + case GOT_TYPE_TLS_DESC: + gold_fatal(_("TLS_DESC not yet supported for incremental linking")); + break; + default: + gold_unreachable(); + } +} + +// Reserve a GOT entry for a global symbol, and regenerate any +// necessary dynamic relocations. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::reserve_global_got_entry( + unsigned int got_index, Symbol* gsym, unsigned int got_type) +{ + unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT) + * (size / 8); + Reloc_section* rela_dyn = this->rela_dyn_section(NULL); + + this->got_->reserve_global(got_index, gsym, got_type); + switch (got_type) + { + case GOT_TYPE_STANDARD: + if (!gsym->final_value_is_known()) + { + if (gsym->is_from_dynobj() + || gsym->is_undefined() + || gsym->is_preemptible() + || gsym->type() == elfcpp::STT_GNU_IFUNC) + rela_dyn->add_global(gsym, elfcpp::R_TILEGX_GLOB_DAT, + this->got_, got_offset, 0); + else + rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE, + this->got_, got_offset, 0, false); + } + break; + case GOT_TYPE_TLS_OFFSET: + rela_dyn->add_global_relative(gsym, + size == 32 ? elfcpp::R_TILEGX_TLS_TPOFF32 + : elfcpp::R_TILEGX_TLS_TPOFF64, + this->got_, got_offset, 0, false); + break; + case GOT_TYPE_TLS_PAIR: + this->got_->reserve_slot(got_index + 1); + rela_dyn->add_global_relative(gsym, + size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 + : elfcpp::R_TILEGX_TLS_DTPMOD64, + this->got_, got_offset, 0, false); + rela_dyn->add_global_relative(gsym, + size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32 + : elfcpp::R_TILEGX_TLS_DTPOFF64, + this->got_, got_offset + size / 8, + 0, false); + break; + case GOT_TYPE_TLS_DESC: + gold_fatal(_("TLS_DESC not yet supported for TILEGX")); + break; + default: + gold_unreachable(); + } +} + +// Register an existing PLT entry for a global symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::register_global_plt_entry( + Symbol_table* symtab, Layout* layout, unsigned int plt_index, Symbol* gsym) +{ + gold_assert(this->plt_ != NULL); + gold_assert(!gsym->has_plt_offset()); + + this->plt_->reserve_slot(plt_index); + + gsym->set_plt_offset((plt_index + 1) * this->plt_entry_size()); + + unsigned int got_offset = (plt_index + 2) * (size / 8); + this->plt_->add_relocation(symtab, layout, gsym, got_offset); +} + +// Force a COPY relocation for a given symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::emit_copy_reloc( + Symbol_table* symtab, Symbol* sym, Output_section* os, off_t offset) +{ + this->copy_relocs_.emit_copy_reloc(symtab, + symtab->get_sized_symbol<size>(sym), + os, + offset, + this->rela_dyn_section(NULL)); +} + +// Create a GOT entry for the TLS module index. + +template<int size, bool big_endian> +unsigned int +Target_tilegx<size, big_endian>::got_mod_index_entry(Symbol_table* symtab, + Layout* layout, + Sized_relobj_file<size, big_endian>* object) +{ + if (this->got_mod_index_offset_ == -1U) + { + gold_assert(symtab != NULL && layout != NULL && object != NULL); + Reloc_section* rela_dyn = this->rela_dyn_section(layout); + Output_data_got<size, big_endian>* got + = this->got_section(symtab, layout); + unsigned int got_offset = got->add_constant(0); + rela_dyn->add_local(object, 0, + size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 + : elfcpp::R_TILEGX_TLS_DTPMOD64, got, + got_offset, 0); + got->add_constant(0); + this->got_mod_index_offset_ = got_offset; + } + return this->got_mod_index_offset_; +} + +// Optimize the TLS relocation type based on what we know about the +// symbol. IS_FINAL is true if the final address of this symbol is +// known at link time. +// +// the transformation rules is described below: +// +// compiler GD reference +// | +// V +// moveli tmp, hw1_last_tls_gd(x) X0/X1 +// shl16insli r0, tmp, hw0_tls_gd(x) X0/X1 +// addi r0, got, tls_add(x) Y0/Y1/X0/X1 +// jal tls_gd_call(x) X1 +// addi adr, r0, tls_gd_add(x) Y0/Y1/X0/X1 +// +// linker tranformation of GD insn sequence +// | +// V +// ==> GD: +// moveli tmp, hw1_last_tls_gd(x) X0/X1 +// shl16insli r0, tmp, hw0_tls_gd(x) X0/X1 +// add r0, got, r0 Y0/Y1/X0/X1 +// jal plt(__tls_get_addr) X1 +// move adr, r0 Y0/Y1/X0/X1 +// ==> IE: +// moveli tmp, hw1_last_tls_ie(x) X0/X1 +// shl16insli r0, tmp, hw0_tls_ie(x) X0/X1 +// add r0, got, r0 Y0/Y1/X0/X1 +// ld r0, r0 X1 +// add adr, r0, tp Y0/Y1/X0/X1 +// ==> LE: +// moveli tmp, hw1_last_tls_le(x) X0/X1 +// shl16insli r0, tmp, hw0_tls_le(x) X0/X1 +// move r0, r0 Y0/Y1/X0/X1 +// move r0, r0 Y0/Y1/X0/X1 +// add adr, r0, tp Y0/Y1/X0/X1 +// +// +// compiler IE reference +// | +// V +// moveli tmp, hw1_last_tls_ie(x) X0/X1 +// shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1 +// addi tmp, got, tls_add(x) Y0/Y1/X0/X1 +// ld_tls tmp, tmp, tls_ie_load(x) X1 +// add adr, tmp, tp Y0/Y1/X0/X1 +// +// linker transformation for IE insn sequence +// | +// V +// ==> IE: +// moveli tmp, hw1_last_tls_ie(x) X0/X1 +// shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1 +// add tmp, got, tmp Y0/Y1/X0/X1 +// ld tmp, tmp X1 +// add adr, tmp, tp Y0/Y1/X0/X1 +// ==> LE: +// moveli tmp, hw1_last_tls_le(x) X0/X1 +// shl16insli tmp, tmp, hw0_tls_le(x) X0/X1 +// move tmp, tmp Y0/Y1/X0/X1 +// move tmp, tmp Y0/Y1/X0/X1 +// +// +// compiler LE reference +// | +// V +// moveli tmp, hw1_last_tls_le(x) X0/X1 +// shl16insli tmp, tmp, hw0_tls_le(x) X0/X1 +// add adr, tmp, tp Y0/Y1/X0/X1 + +template<int size, bool big_endian> +tls::Tls_optimization +Target_tilegx<size, big_endian>::optimize_tls_reloc(bool is_final, int r_type) +{ + // If we are generating a shared library, then we can't do anything + // in the linker. + if (parameters->options().shared()) + return tls::TLSOPT_NONE; + + switch (r_type) + { + // unique GD relocations + case elfcpp::R_TILEGX_TLS_GD_CALL: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + // These are General-Dynamic which permits fully general TLS + // access. Since we know that we are generating an executable, + // we can convert this to Initial-Exec. If we also know that + // this is a local symbol, we can further switch to Local-Exec. + if (is_final) + return tls::TLSOPT_TO_LE; + return tls::TLSOPT_TO_IE; + + // unique IE relocations + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + // These are Initial-Exec relocs which get the thread offset + // from the GOT. If we know that we are linking against the + // local symbol, we can switch to Local-Exec, which links the + // thread offset into the instruction. + if (is_final) + return tls::TLSOPT_TO_LE; + return tls::TLSOPT_NONE; + + // could be created for both GD and IE + // but they are expanded into the same + // instruction in GD and IE. + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + if (is_final) + return tls::TLSOPT_TO_LE; + return tls::TLSOPT_NONE; + + // unique LE relocations + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + // When we already have Local-Exec, there is nothing further we + // can do. + return tls::TLSOPT_NONE; + + default: + gold_unreachable(); + } +} + +// Get the Reference_flags for a particular relocation. + +template<int size, bool big_endian> +int +Target_tilegx<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) +{ + switch (r_type) + { + case elfcpp::R_TILEGX_NONE: + case elfcpp::R_TILEGX_GNU_VTINHERIT: + case elfcpp::R_TILEGX_GNU_VTENTRY: + // No symbol reference. + return 0; + + case elfcpp::R_TILEGX_64: + case elfcpp::R_TILEGX_32: + case elfcpp::R_TILEGX_16: + case elfcpp::R_TILEGX_8: + return Symbol::ABSOLUTE_REF; + + case elfcpp::R_TILEGX_BROFF_X1: + case elfcpp::R_TILEGX_64_PCREL: + case elfcpp::R_TILEGX_32_PCREL: + case elfcpp::R_TILEGX_16_PCREL: + case elfcpp::R_TILEGX_8_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + return Symbol::RELATIVE_REF; + + case elfcpp::R_TILEGX_JUMPOFF_X1: + case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; + + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + return Symbol::ABSOLUTE_REF; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + // Absolute in GOT. + return Symbol::ABSOLUTE_REF; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_TLS_DTPOFF64: + case elfcpp::R_TILEGX_TLS_DTPMOD32: + case elfcpp::R_TILEGX_TLS_DTPOFF32: + case elfcpp::R_TILEGX_TLS_TPOFF32: + case elfcpp::R_TILEGX_TLS_GD_CALL: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + return Symbol::TLS_REF; + + case elfcpp::R_TILEGX_COPY: + case elfcpp::R_TILEGX_GLOB_DAT: + case elfcpp::R_TILEGX_JMP_SLOT: + case elfcpp::R_TILEGX_RELATIVE: + case elfcpp::R_TILEGX_TLS_TPOFF64: + case elfcpp::R_TILEGX_TLS_DTPMOD64: + default: + // Not expected. We will give an error later. + return 0; + } +} + +// Report an unsupported relocation against a local symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::Scan::unsupported_reloc_local( + Sized_relobj_file<size, big_endian>* object, + unsigned int r_type) +{ + gold_error(_("%s: unsupported reloc %u against local symbol"), + object->name().c_str(), r_type); +} + +// We are about to emit a dynamic relocation of type R_TYPE. If the +// dynamic linker does not support it, issue an error. +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::Scan::check_non_pic(Relobj* object, + unsigned int r_type) +{ + switch (r_type) + { + // These are the relocation types supported by glibc for tilegx + // which should always work. + case elfcpp::R_TILEGX_RELATIVE: + case elfcpp::R_TILEGX_GLOB_DAT: + case elfcpp::R_TILEGX_JMP_SLOT: + case elfcpp::R_TILEGX_TLS_DTPMOD64: + case elfcpp::R_TILEGX_TLS_DTPOFF64: + case elfcpp::R_TILEGX_TLS_TPOFF64: + case elfcpp::R_TILEGX_8: + case elfcpp::R_TILEGX_16: + case elfcpp::R_TILEGX_32: + case elfcpp::R_TILEGX_64: + case elfcpp::R_TILEGX_COPY: + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + case elfcpp::R_TILEGX_BROFF_X1: + case elfcpp::R_TILEGX_JUMPOFF_X1: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + return; + + default: + // This prevents us from issuing more than one error per reloc + // section. But we can still wind up issuing more than one + // error per object file. + if (this->issued_non_pic_error_) + return; + gold_assert(parameters->options().output_is_position_independent()); + object->error(_("requires unsupported dynamic reloc %u; " + "recompile with -fPIC"), + r_type); + this->issued_non_pic_error_ = true; + return; + + case elfcpp::R_TILEGX_NONE: + gold_unreachable(); + } +} + +// Return whether we need to make a PLT entry for a relocation of the +// given type against a STT_GNU_IFUNC symbol. + +template<int size, bool big_endian> +bool +Target_tilegx<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( + Sized_relobj_file<size, big_endian>* object, unsigned int r_type) +{ + int flags = Scan::get_reference_flags(r_type); + if (flags & Symbol::TLS_REF) + gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), + object->name().c_str(), r_type); + return flags != 0; +} + +// Scan a relocation for a local symbol. + +template<int size, bool big_endian> +inline void +Target_tilegx<size, big_endian>::Scan::local(Symbol_table* symtab, + Layout* layout, + Target_tilegx<size, big_endian>* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, + unsigned int r_type, + const elfcpp::Sym<size, big_endian>& lsym, + bool is_discarded) +{ + if (is_discarded) + return; + + // 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)) + { + unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); + } + + switch (r_type) + { + case elfcpp::R_TILEGX_NONE: + case elfcpp::R_TILEGX_GNU_VTINHERIT: + case elfcpp::R_TILEGX_GNU_VTENTRY: + break; + + // If building a shared library (or a position-independent + // executable), because the runtime address needs plus + // the module base address, so generate a R_TILEGX_RELATIVE. + case elfcpp::R_TILEGX_32: + case elfcpp::R_TILEGX_64: + if (parameters->options().output_is_position_independent()) + { + unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_local_relative(object, r_sym, + elfcpp::R_TILEGX_RELATIVE, + output_section, data_shndx, + reloc.get_r_offset(), + reloc.get_r_addend(), is_ifunc); + } + break; + + // If building a shared library (or a position-independent + // executable), we need to create a dynamic relocation for this + // location. + case elfcpp::R_TILEGX_8: + case elfcpp::R_TILEGX_16: + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + if (parameters->options().output_is_position_independent()) + { + this->check_non_pic(object, r_type); + + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + if (lsym.get_st_type() != elfcpp::STT_SECTION) + rela_dyn->add_local(object, r_sym, r_type, output_section, + data_shndx, reloc.get_r_offset(), + reloc.get_r_addend()); + else + { + gold_assert(lsym.get_st_value() == 0); + rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, + output_section, + data_shndx, + reloc.get_r_offset(), + reloc.get_r_addend()); + + } + } + break; + + // R_TILEGX_JUMPOFF_X1_PLT against local symbol + // may happen for ifunc case. + case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: + case elfcpp::R_TILEGX_JUMPOFF_X1: + case elfcpp::R_TILEGX_64_PCREL: + case elfcpp::R_TILEGX_32_PCREL: + case elfcpp::R_TILEGX_16_PCREL: + case elfcpp::R_TILEGX_8_PCREL: + case elfcpp::R_TILEGX_BROFF_X1: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + break; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + { + // The symbol requires a GOT entry. + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + + // For a STT_GNU_IFUNC symbol we want the PLT offset. That + // lets function pointers compare correctly with shared + // libraries. Otherwise we would need an IRELATIVE reloc. + bool is_new; + if (is_ifunc) + is_new = got->add_local_plt(object, r_sym, GOT_TYPE_STANDARD); + else + is_new = got->add_local(object, r_sym, GOT_TYPE_STANDARD); + if (is_new) + { + // tilegx dynamic linker will not update local got entry, + // so, if we are generating a shared object, we need to add a + // dynamic relocation for this symbol's GOT entry to inform + // dynamic linker plus the load base explictly. + if (parameters->options().output_is_position_independent()) + { + unsigned int got_offset + = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); + + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_local_relative(object, r_sym, + r_type, + got, got_offset, 0, is_ifunc); + } + } + } + break; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_TLS_GD_CALL: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + { + bool output_is_shared = parameters->options().shared(); + const tls::Tls_optimization opt_t = + Target_tilegx<size, big_endian>::optimize_tls_reloc( + !output_is_shared, r_type); + + switch (r_type) + { + case elfcpp::R_TILEGX_TLS_GD_CALL: + // FIXME: predefine __tls_get_addr + // + // R_TILEGX_TLS_GD_CALL implicitly reference __tls_get_addr, + // while all other target, x86/arm/mips/powerpc/sparc + // generate tls relocation against __tls_get_addr explictly, + // so for TILEGX, we need the following hack. + if (opt_t == tls::TLSOPT_NONE) { + if (!target->tls_get_addr_sym_defined_) { + Symbol* sym = NULL; + options::parse_set(NULL, "__tls_get_addr", + (gold::options::String_set*) + ¶meters->options().undefined()); + symtab->add_undefined_symbols_from_command_line(layout); + target->tls_get_addr_sym_defined_ = true; + sym = symtab->lookup("__tls_get_addr"); + sym->set_in_reg(); + } + target->make_plt_entry(symtab, layout, + symtab->lookup("__tls_get_addr")); + } + break; + + // only make effect when applying relocation + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + break; + + // GD: requires two GOT entry for module index and offset + // IE: requires one GOT entry for tp-relative offset + // LE: shouldn't happen for global symbol + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + { + if (opt_t == tls::TLSOPT_NONE) { + Output_data_got<size, big_endian> *got + = target->got_section(symtab, layout); + unsigned int r_sym + = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + unsigned int shndx = lsym.get_st_shndx(); + bool is_ordinary; + shndx = object->adjust_sym_shndx(r_sym, shndx, + &is_ordinary); + if (!is_ordinary) + object->error(_("local symbol %u has bad shndx %u"), + r_sym, shndx); + else + got->add_local_pair_with_rel(object, r_sym, shndx, + GOT_TYPE_TLS_PAIR, + target->rela_dyn_section(layout), + size == 32 + ? elfcpp::R_TILEGX_TLS_DTPMOD32 + : elfcpp::R_TILEGX_TLS_DTPMOD64); + } else if (opt_t == tls::TLSOPT_TO_IE) { + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + Reloc_section* rela_dyn + = target->rela_dyn_section(layout); + unsigned int r_sym + = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + unsigned int off = got->add_constant(0); + object->set_local_got_offset(r_sym, + GOT_TYPE_TLS_OFFSET,off); + rela_dyn->add_symbolless_local_addend(object, r_sym, + size == 32 + ? elfcpp::R_TILEGX_TLS_TPOFF32 + : elfcpp::R_TILEGX_TLS_TPOFF64, + got, off, 0); + } else if (opt_t != tls::TLSOPT_TO_LE) + // only TO_LE is allowed for local symbol + unsupported_reloc_local(object, r_type); + } + break; + + // IE + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + { + layout->set_has_static_tls(); + if (opt_t == tls::TLSOPT_NONE) { + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + Reloc_section* rela_dyn + = target->rela_dyn_section(layout); + unsigned int r_sym + = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + unsigned int off = got->add_constant(0); + object->set_local_got_offset(r_sym, + GOT_TYPE_TLS_OFFSET, off); + rela_dyn->add_symbolless_local_addend(object, r_sym, + size == 32 + ? elfcpp::R_TILEGX_TLS_TPOFF32 + : elfcpp::R_TILEGX_TLS_TPOFF64, + got, off, 0); + } else if (opt_t != tls::TLSOPT_TO_LE) + unsupported_reloc_local(object, r_type); + } + break; + + // LE + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + layout->set_has_static_tls(); + if (parameters->options().shared()) { + // defer to dynamic linker + gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); + unsigned int r_sym + = elfcpp::elf_r_sym<size>(reloc.get_r_info()); + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, + output_section, data_shndx, + reloc.get_r_offset(), 0); + } + break; + + default: + gold_unreachable(); + } + } + break; + + case elfcpp::R_TILEGX_COPY: + case elfcpp::R_TILEGX_GLOB_DAT: + case elfcpp::R_TILEGX_JMP_SLOT: + case elfcpp::R_TILEGX_RELATIVE: + // These are outstanding tls relocs, which are unexpected when linking + case elfcpp::R_TILEGX_TLS_TPOFF32: + case elfcpp::R_TILEGX_TLS_TPOFF64: + case elfcpp::R_TILEGX_TLS_DTPMOD32: + case elfcpp::R_TILEGX_TLS_DTPMOD64: + case elfcpp::R_TILEGX_TLS_DTPOFF32: + case elfcpp::R_TILEGX_TLS_DTPOFF64: + gold_error(_("%s: unexpected reloc %u in object file"), + object->name().c_str(), r_type); + break; + + default: + gold_error(_("%s: unsupported reloc %u against local symbol"), + object->name().c_str(), r_type); + break; + } +} + + +// Report an unsupported relocation against a global symbol. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::Scan::unsupported_reloc_global( + Sized_relobj_file<size, big_endian>* object, + unsigned int r_type, + Symbol* gsym) +{ + gold_error(_("%s: unsupported reloc %u against global symbol %s"), + object->name().c_str(), r_type, gsym->demangled_name().c_str()); +} + +// Returns true if this relocation type could be that of a function pointer. +template<int size, bool big_endian> +inline bool +Target_tilegx<size, big_endian>::Scan::possible_function_pointer_reloc( + unsigned int r_type) +{ + switch (r_type) + { + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + { + return true; + } + } + return false; +} + +// For safe ICF, scan a relocation for a local symbol to check if it +// corresponds to a function pointer being taken. In that case mark +// the function whose pointer was taken as not foldable. + +template<int size, bool big_endian> +inline bool +Target_tilegx<size, big_endian>::Scan::local_reloc_may_be_function_pointer( + Symbol_table* , + Layout* , + Target_tilegx<size, big_endian>* , + Sized_relobj_file<size, big_endian>* , + unsigned int , + Output_section* , + const elfcpp::Rela<size, big_endian>& , + unsigned int r_type, + const elfcpp::Sym<size, big_endian>&) +{ + return possible_function_pointer_reloc(r_type); +} + +// For safe ICF, scan a relocation for a global symbol to check if it +// corresponds to a function pointer being taken. In that case mark +// the function whose pointer was taken as not foldable. + +template<int size, bool big_endian> +inline bool +Target_tilegx<size, big_endian>::Scan::global_reloc_may_be_function_pointer( + Symbol_table*, + Layout* , + Target_tilegx<size, big_endian>* , + Sized_relobj_file<size, big_endian>* , + unsigned int , + Output_section* , + const elfcpp::Rela<size, big_endian>& , + unsigned int r_type, + Symbol* gsym) +{ + // GOT is not a function. + if (strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) + return false; + + // When building a shared library, do not fold symbols whose visibility + // is hidden, internal or protected. + return ((parameters->options().shared() + && (gsym->visibility() == elfcpp::STV_INTERNAL + || gsym->visibility() == elfcpp::STV_PROTECTED + || gsym->visibility() == elfcpp::STV_HIDDEN)) + || possible_function_pointer_reloc(r_type)); +} + +// Scan a relocation for a global symbol. + +template<int size, bool big_endian> +inline void +Target_tilegx<size, big_endian>::Scan::global(Symbol_table* symtab, + Layout* layout, + Target_tilegx<size, big_endian>* target, + Sized_relobj_file<size, big_endian>* object, + unsigned int data_shndx, + Output_section* output_section, + const elfcpp::Rela<size, big_endian>& reloc, + unsigned int r_type, + Symbol* gsym) +{ + // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got + // section. We check here to avoid creating a dynamic reloc against + // _GLOBAL_OFFSET_TABLE_. + if (!target->has_got_section() + && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) + target->got_section(symtab, layout); + + // A STT_GNU_IFUNC symbol may require a PLT entry. + if (gsym->type() == elfcpp::STT_GNU_IFUNC + && this->reloc_needs_plt_for_ifunc(object, r_type)) + target->make_plt_entry(symtab, layout, gsym); + + switch (r_type) + { + case elfcpp::R_TILEGX_NONE: + case elfcpp::R_TILEGX_GNU_VTINHERIT: + case elfcpp::R_TILEGX_GNU_VTENTRY: + break; + + case elfcpp::R_TILEGX_DEST_IMM8_X1: + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + case elfcpp::R_TILEGX_64: + case elfcpp::R_TILEGX_32: + case elfcpp::R_TILEGX_16: + case elfcpp::R_TILEGX_8: + { + // 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(); + } + // Make a dynamic relocation if necessary. + if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) + { + if (gsym->may_need_copy_reloc()) + { + target->copy_reloc(symtab, layout, object, + data_shndx, output_section, gsym, reloc); + } + else if (((size == 64 && r_type == elfcpp::R_TILEGX_64) + || (size == 32 && r_type == elfcpp::R_TILEGX_32)) + && gsym->type() == elfcpp::STT_GNU_IFUNC + && gsym->can_use_relative_reloc(false) + && !gsym->is_from_dynobj() + && !gsym->is_undefined() + && !gsym->is_preemptible()) + { + // Use an IRELATIVE reloc for a locally defined + // STT_GNU_IFUNC symbol. This makes a function + // address in a PIE executable match the address in a + // shared library that it links against. + Reloc_section* rela_dyn = + target->rela_irelative_section(layout); + unsigned int r_type = elfcpp::R_TILEGX_IRELATIVE; + rela_dyn->add_symbolless_global_addend(gsym, r_type, + output_section, object, + data_shndx, + reloc.get_r_offset(), + reloc.get_r_addend()); + } else if ((r_type == elfcpp::R_TILEGX_64 + || r_type == elfcpp::R_TILEGX_32) + && gsym->can_use_relative_reloc(false)) + { + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE, + output_section, object, + data_shndx, + reloc.get_r_offset(), + reloc.get_r_addend(), false); + } + else + { + this->check_non_pic(object, r_type); + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_global(gsym, r_type, output_section, object, + data_shndx, reloc.get_r_offset(), + reloc.get_r_addend()); + } + } + } + break; + + case elfcpp::R_TILEGX_BROFF_X1: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_64_PCREL: + case elfcpp::R_TILEGX_32_PCREL: + case elfcpp::R_TILEGX_16_PCREL: + case elfcpp::R_TILEGX_8_PCREL: + { + // Make a PLT entry if necessary. + if (gsym->needs_plt_entry()) + target->make_plt_entry(symtab, layout, gsym); + // Make a dynamic relocation if necessary. + if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) + { + if (gsym->may_need_copy_reloc()) + { + target->copy_reloc(symtab, layout, object, + data_shndx, output_section, gsym, reloc); + } + else + { + this->check_non_pic(object, r_type); + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_global(gsym, r_type, output_section, object, + data_shndx, reloc.get_r_offset(), + reloc.get_r_addend()); + } + } + } + break; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + { + // The symbol requires a GOT entry. + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + if (gsym->final_value_is_known()) + { + // For a STT_GNU_IFUNC symbol we want the PLT address. + if (gsym->type() == elfcpp::STT_GNU_IFUNC) + got->add_global_plt(gsym, GOT_TYPE_STANDARD); + else + got->add_global(gsym, GOT_TYPE_STANDARD); + } + else + { + // If this symbol is not fully resolved, we need to add a + // dynamic relocation for it. + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + + // Use a GLOB_DAT rather than a RELATIVE reloc if: + // + // 1) The symbol may be defined in some other module. + // + // 2) We are building a shared library and this is a + // protected symbol; using GLOB_DAT means that the dynamic + // linker can use the address of the PLT in the main + // executable when appropriate so that function address + // comparisons work. + // + // 3) This is a STT_GNU_IFUNC symbol in position dependent + // code, again so that function address comparisons work. + if (gsym->is_from_dynobj() + || gsym->is_undefined() + || gsym->is_preemptible() + || (gsym->visibility() == elfcpp::STV_PROTECTED + && parameters->options().shared()) + || (gsym->type() == elfcpp::STT_GNU_IFUNC + && parameters->options().output_is_position_independent())) + got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, + elfcpp::R_TILEGX_GLOB_DAT); + else + { + // For a STT_GNU_IFUNC symbol we want to write the PLT + // offset into the GOT, so that function pointer + // comparisons work correctly. + bool is_new; + if (gsym->type() != elfcpp::STT_GNU_IFUNC) + is_new = got->add_global(gsym, GOT_TYPE_STANDARD); + else + { + is_new = got->add_global_plt(gsym, GOT_TYPE_STANDARD); + // Tell the dynamic linker to use the PLT address + // when resolving relocations. + if (gsym->is_from_dynobj() + && !parameters->options().shared()) + gsym->set_needs_dynsym_value(); + } + if (is_new) + { + unsigned int got_off = gsym->got_offset(GOT_TYPE_STANDARD); + rela_dyn->add_global_relative(gsym, + r_type, + got, got_off, 0, false); + } + } + } + } + break; + + // a minor difference here for R_TILEGX_JUMPOFF_X1 + // between bfd linker and gold linker for gold, when + // R_TILEGX_JUMPOFF_X1 against global symbol, we + // turn it into JUMPOFF_X1_PLT, otherwise the distance + // to the symbol function may overflow at runtime. + case elfcpp::R_TILEGX_JUMPOFF_X1: + + case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + // If the symbol is fully resolved, this is just a PC32 reloc. + // Otherwise we need a PLT entry. + if (gsym->final_value_is_known()) + break; + // If building a shared library, we can also skip the PLT entry + // if the symbol is defined in the output file and is protected + // or hidden. + if (gsym->is_defined() + && !gsym->is_from_dynobj() + && !gsym->is_preemptible()) + break; + target->make_plt_entry(symtab, layout, gsym); + break; + + + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_TLS_GD_CALL: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + { + const bool is_final = gsym->final_value_is_known(); + const tls::Tls_optimization opt_t = + Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final, + r_type); + + switch (r_type) + { + // only expand to plt against __tls_get_addr in GD model + case elfcpp::R_TILEGX_TLS_GD_CALL: + if (opt_t == tls::TLSOPT_NONE) { + // FIXME: it's better '__tls_get_addr' referenced explictly + if (!target->tls_get_addr_sym_defined_) { + Symbol* sym = NULL; + options::parse_set(NULL, "__tls_get_addr", + (gold::options::String_set*) + ¶meters->options().undefined()); + symtab->add_undefined_symbols_from_command_line(layout); + target->tls_get_addr_sym_defined_ = true; + sym = symtab->lookup("__tls_get_addr"); + sym->set_in_reg(); + } + target->make_plt_entry(symtab, layout, + symtab->lookup("__tls_get_addr")); + } + break; + + // only make effect when applying relocation + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + break; + + // GD: requires two GOT entry for module index and offset + // IE: requires one GOT entry for tp-relative offset + // LE: shouldn't happen for global symbol + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + { + if (opt_t == tls::TLSOPT_NONE) { + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, + target->rela_dyn_section(layout), + size == 32 + ? elfcpp::R_TILEGX_TLS_DTPMOD32 + : elfcpp::R_TILEGX_TLS_DTPMOD64, + size == 32 + ? elfcpp::R_TILEGX_TLS_DTPOFF32 + : elfcpp::R_TILEGX_TLS_DTPOFF64); + } else if (opt_t == tls::TLSOPT_TO_IE) { + // Create a GOT entry for the tp-relative offset. + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, + target->rela_dyn_section(layout), + size == 32 + ? elfcpp::R_TILEGX_TLS_TPOFF32 + : elfcpp::R_TILEGX_TLS_TPOFF64); + } else if (opt_t != tls::TLSOPT_TO_LE) + // exteranl symbol should not be optimized to TO_LE + unsupported_reloc_global(object, r_type, gsym); + } + break; + + // IE + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + { + layout->set_has_static_tls(); + if (opt_t == tls::TLSOPT_NONE) { + // Create a GOT entry for the tp-relative offset. + Output_data_got<size, big_endian>* got + = target->got_section(symtab, layout); + got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, + target->rela_dyn_section(layout), + size == 32 + ? elfcpp::R_TILEGX_TLS_TPOFF32 + : elfcpp::R_TILEGX_TLS_TPOFF64); + } else if (opt_t != tls::TLSOPT_TO_LE) + unsupported_reloc_global(object, r_type, gsym); + } + break; + + // LE + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + layout->set_has_static_tls(); + if (parameters->options().shared()) { + // defer to dynamic linker + Reloc_section* rela_dyn = target->rela_dyn_section(layout); + rela_dyn->add_symbolless_global_addend(gsym, r_type, + output_section, object, + data_shndx, + reloc.get_r_offset(), 0); + } + break; + + default: + gold_unreachable(); + } + } + break; + + // below are outstanding relocs + // should not existed in static linking stage + case elfcpp::R_TILEGX_COPY: + case elfcpp::R_TILEGX_GLOB_DAT: + case elfcpp::R_TILEGX_JMP_SLOT: + case elfcpp::R_TILEGX_RELATIVE: + case elfcpp::R_TILEGX_TLS_TPOFF32: + case elfcpp::R_TILEGX_TLS_TPOFF64: + case elfcpp::R_TILEGX_TLS_DTPMOD32: + case elfcpp::R_TILEGX_TLS_DTPMOD64: + case elfcpp::R_TILEGX_TLS_DTPOFF32: + case elfcpp::R_TILEGX_TLS_DTPOFF64: + gold_error(_("%s: unexpected reloc %u in object file"), + object->name().c_str(), r_type); + break; + + default: + gold_error(_("%s: unsupported reloc %u against global symbol %s"), + object->name().c_str(), r_type, + gsym->demangled_name().c_str()); + break; + } +} + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::gc_process_relocs(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_symbols) +{ + typedef Target_tilegx<size, big_endian> Tilegx; + typedef typename Target_tilegx<size, big_endian>::Scan Scan; + + if (sh_type == elfcpp::SHT_REL) + { + return; + } + + gold::gc_process_relocs<size, big_endian, + Tilegx, elfcpp::SHT_RELA, Scan, + typename Target_tilegx<size, big_endian>::Relocatable_size_for_reloc>( + symtab, + layout, + this, + object, + data_shndx, + prelocs, + reloc_count, + output_section, + needs_special_offset_handling, + local_symbol_count, + plocal_symbols); +} +// Scan relocations for a section. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::scan_relocs(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_symbols) +{ + typedef Target_tilegx<size, big_endian> Tilegx; + typedef typename Target_tilegx<size, big_endian>::Scan Scan; + + if (sh_type == elfcpp::SHT_REL) + { + gold_error(_("%s: unsupported REL reloc section"), + object->name().c_str()); + return; + } + + gold::scan_relocs<size, big_endian, Tilegx, elfcpp::SHT_RELA, Scan>( + symtab, + layout, + this, + object, + data_shndx, + prelocs, + reloc_count, + output_section, + needs_special_offset_handling, + local_symbol_count, + plocal_symbols); +} + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::do_define_standard_symbols( + Symbol_table* symtab, + Layout* layout) +{ + Output_section* feedback_section = layout->find_output_section(".feedback"); + + if (feedback_section != NULL) + { + symtab->define_in_output_data("__feedback_section_end", + NULL, + Symbol_table::PREDEFINED, + feedback_section, + 0, + 0, + elfcpp::STT_NOTYPE, + elfcpp::STB_GLOBAL, + elfcpp::STV_HIDDEN, + 0, + true, // offset_is_from_end + false); + } +} + +// Finalize the sections. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::do_finalize_sections( + Layout* layout, + const Input_objects*, + Symbol_table* symtab) +{ + const Reloc_section* rel_plt = (this->plt_ == NULL + ? NULL + : this->plt_->rela_plt()); + layout->add_target_dynamic_tags(false, this->got_plt_, rel_plt, + this->rela_dyn_, true, true); + + // Emit any relocs we saved in an attempt to avoid generating COPY + // relocs. + if (this->copy_relocs_.any_saved_relocs()) + this->copy_relocs_.emit(this->rela_dyn_section(layout)); + + // Set the size of the _GLOBAL_OFFSET_TABLE_ symbol to the size of + // the .got section. + Symbol* sym = this->global_offset_table_; + if (sym != NULL) + { + uint64_t data_size = this->got_->current_data_size(); + symtab->get_sized_symbol<size>(sym)->set_symsize(data_size); + } + + if (parameters->doing_static_link() + && (this->plt_ == NULL || !this->plt_->has_irelative_section())) + { + // If linking statically, make sure that the __rela_iplt symbols + // were defined if necessary, even if we didn't create a PLT. + static const Define_symbol_in_segment syms[] = + { + { + "__rela_iplt_start", // name + elfcpp::PT_LOAD, // segment_type + elfcpp::PF_W, // segment_flags_set + elfcpp::PF(0), // segment_flags_clear + 0, // value + 0, // size + elfcpp::STT_NOTYPE, // type + elfcpp::STB_GLOBAL, // binding + elfcpp::STV_HIDDEN, // visibility + 0, // nonvis + Symbol::SEGMENT_START, // offset_from_base + true // only_if_ref + }, + { + "__rela_iplt_end", // name + elfcpp::PT_LOAD, // segment_type + elfcpp::PF_W, // segment_flags_set + elfcpp::PF(0), // segment_flags_clear + 0, // value + 0, // size + elfcpp::STT_NOTYPE, // type + elfcpp::STB_GLOBAL, // binding + elfcpp::STV_HIDDEN, // visibility + 0, // nonvis + Symbol::SEGMENT_START, // offset_from_base + true // only_if_ref + } + }; + + symtab->define_symbols(layout, 2, syms, + layout->script_options()->saw_sections_clause()); + } +} + +// Perform a relocation. + +template<int size, bool big_endian> +inline bool +Target_tilegx<size, big_endian>::Relocate::relocate( + const Relocate_info<size, big_endian>* relinfo, + Target_tilegx<size, big_endian>* target, + Output_section*, + size_t relnum, + const elfcpp::Rela<size, big_endian>& rela, + unsigned int r_type, + const Sized_symbol<size>* gsym, + const Symbol_value<size>* psymval, + unsigned char* view, + typename elfcpp::Elf_types<size>::Elf_Addr address, + section_size_type) +{ + typedef Tilegx_relocate_functions<size, big_endian> TilegxReloc; + typename TilegxReloc::Tilegx_howto r_howto; + + const Sized_relobj_file<size, big_endian>* object = relinfo->object; + + // Pick the value to use for symbols defined in the PLT. + Symbol_value<size> symval; + if (gsym != NULL + && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) + { + symval.set_output_value(target->plt_address_for_global(gsym) + + gsym->plt_offset()); + psymval = &symval; + } + else if (gsym == NULL && psymval->is_ifunc_symbol()) + { + unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); + if (object->local_has_plt_offset(r_sym)) + { + symval.set_output_value(target->plt_address_for_local(object, r_sym) + + object->local_plt_offset(r_sym)); + psymval = &symval; + } + } + + elfcpp::Elf_Xword addend = rela.get_r_addend(); + + // Get the GOT offset if needed. + // For tilegx, the GOT pointer points to the start of the GOT section. + bool have_got_offset = false; + unsigned int got_offset = 0; + unsigned int got_type = GOT_TYPE_STANDARD; + bool always_apply_relocation = false; + switch (r_type) + { + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + if (gsym != NULL) + { + gold_assert(gsym->has_got_offset(got_type)); + got_offset = gsym->got_offset(got_type); + } + else + { + unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); + gold_assert(object->local_has_got_offset(r_sym, got_type)); + got_offset = object->local_got_offset(r_sym, got_type); + } + have_got_offset = true; + break; + + default: + break; + } + + r_howto = TilegxReloc::howto[r_type]; + switch (r_type) + { + case elfcpp::R_TILEGX_NONE: + case elfcpp::R_TILEGX_GNU_VTINHERIT: + case elfcpp::R_TILEGX_GNU_VTENTRY: + break; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: + gold_assert(have_got_offset); + symval.set_output_value(got_offset); + psymval = &symval; + always_apply_relocation = true; + addend = 0; + + // when under PIC mode, these relocations are deferred to rtld + case elfcpp::R_TILEGX_IMM16_X0_HW0: + case elfcpp::R_TILEGX_IMM16_X1_HW0: + case elfcpp::R_TILEGX_IMM16_X0_HW1: + case elfcpp::R_TILEGX_IMM16_X1_HW1: + case elfcpp::R_TILEGX_IMM16_X0_HW2: + case elfcpp::R_TILEGX_IMM16_X1_HW2: + case elfcpp::R_TILEGX_IMM16_X0_HW3: + case elfcpp::R_TILEGX_IMM16_X1_HW3: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: + if (always_apply_relocation + || !parameters->options().output_is_position_independent()) + TilegxReloc::imm_x_general(view, object, psymval, addend, r_howto); + break; + + case elfcpp::R_TILEGX_JUMPOFF_X1: + case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: + gold_assert(gsym == NULL + || gsym->has_plt_offset() + || gsym->final_value_is_known() + || (gsym->is_defined() + && !gsym->is_from_dynobj() + && !gsym->is_preemptible())); + TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend, + address, r_howto); + break; + + + case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: + case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: + TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend, + address, r_howto); + break; + + case elfcpp::R_TILEGX_BROFF_X1: + case elfcpp::R_TILEGX_DEST_IMM8_X1: + TilegxReloc::imm_x_two_part_general(view, object, psymval, + addend, address, r_type); + break; + + + // below are general relocation types, which can be + // handled by target-independent handlers + case elfcpp::R_TILEGX_64: + TilegxReloc::abs64(view, object, psymval, addend); + break; + + case elfcpp::R_TILEGX_64_PCREL: + TilegxReloc::pc_abs64(view, object, psymval, addend, address); + break; + + case elfcpp::R_TILEGX_32: + TilegxReloc::abs32(view, object, psymval, addend); + break; + + case elfcpp::R_TILEGX_32_PCREL: + TilegxReloc::pc_abs32(view, object, psymval, addend, address); + break; + + case elfcpp::R_TILEGX_16: + TilegxReloc::abs16(view, object, psymval, addend); + break; + + case elfcpp::R_TILEGX_16_PCREL: + TilegxReloc::pc_abs16(view, object, psymval, addend, address); + break; + + case elfcpp::R_TILEGX_8: + Relocate_functions<size, big_endian>::rela8(view, object, + psymval, addend); + break; + + case elfcpp::R_TILEGX_8_PCREL: + Relocate_functions<size, big_endian>::pcrela8(view, object, + psymval, addend, address); + break; + + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_TLS_GD_CALL: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + { + const bool is_final = (gsym == NULL + ? !parameters->options().shared() + : gsym->final_value_is_known()); + tls::Tls_optimization opt_t = + Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final, + r_type); + + switch (r_type) + { + + case elfcpp::R_TILEGX_TLS_GD_CALL: + { + if (opt_t == tls::TLSOPT_NONE) { + Symbol *tls_sym = relinfo->symtab->lookup("__tls_get_addr"); + symval.set_output_value( + target->plt_address_for_global(tls_sym) + + tls_sym->plt_offset()); + psymval = &symval; + TilegxReloc::imm_x_pcrel_general(view, object, psymval, + addend, address, r_howto); + } + else if (opt_t == tls::TLSOPT_TO_IE + || opt_t == tls::TLSOPT_TO_LE) + TilegxReloc::tls_relax(view, r_type, opt_t); + } + break; + + // XX_TLS_GD is the same as normal X_GOT relocation + // except allocating a got entry pair, + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: + if (opt_t == tls::TLSOPT_NONE) { + got_type = GOT_TYPE_TLS_PAIR; + have_got_offset = true; + } else if (opt_t == tls::TLSOPT_TO_IE) { + got_type = GOT_TYPE_TLS_OFFSET; + have_got_offset = true; + } + goto do_update_value; + // XX_TLS_IE is the same as normal X_GOT relocation + // except allocating one additional runtime relocation + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: + if (opt_t == tls::TLSOPT_NONE) { + got_type = GOT_TYPE_TLS_OFFSET; + have_got_offset = true; + } + do_update_value: + if (have_got_offset) { + if (gsym != NULL) { + gold_assert(gsym->has_got_offset(got_type)); + got_offset = gsym->got_offset(got_type); + } else { + unsigned int r_sym + = elfcpp::elf_r_sym<size>(rela.get_r_info()); + gold_assert(object->local_has_got_offset(r_sym, got_type)); + got_offset = object->local_got_offset(r_sym, got_type); + } + } + + if (opt_t == tls::TLSOPT_NONE + || opt_t == tls::TLSOPT_TO_IE) { + // for both GD/IE, these relocations + // actually calculate got offset, so + // there behavior are the same + gold_assert(have_got_offset); + symval.set_output_value(got_offset); + psymval = &symval; + addend = 0; + TilegxReloc::imm_x_general(view, object, psymval, + addend, r_howto); + break; + } // else if (opt_t == tls::TLSOPT_TO_LE) + // both GD/IE are turned into LE, which + // is absolute relocation. + // + // | go through + // | + // V + // LE + // + // tp + // | + // V + // t_var1 | t_var2 | t_var3 | ... + // -------------------------------------------------- + // + // so offset to tp should be negative, we get offset + // from the following formular for LE + // + // t_var1_off = t_var1_sym_value - tls_section_start + // + case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: + case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: + { + Output_segment *tls_segment = relinfo->layout->tls_segment(); + if (tls_segment == NULL) { + gold_assert(parameters->errors()->error_count() > 0 + || issue_undefined_symbol_error(gsym)); + return false; + } + + typename elfcpp::Elf_types<size>::Elf_Addr value + = psymval->value(relinfo->object, 0); + symval.set_output_value(value); + psymval = &symval; + TilegxReloc::imm_x_general(view, object, psymval, + addend, r_howto); + } + break; + + // tls relaxation + case elfcpp::R_TILEGX_TLS_IE_LOAD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: + case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: + case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: + TilegxReloc::tls_relax(view, r_type, opt_t); + break; + + default: + gold_unreachable(); + } + } + break; + + // below are outstanding relocs + // should not existed in static linking stage + case elfcpp::R_TILEGX_COPY: + case elfcpp::R_TILEGX_GLOB_DAT: + case elfcpp::R_TILEGX_JMP_SLOT: + case elfcpp::R_TILEGX_RELATIVE: + case elfcpp::R_TILEGX_TLS_TPOFF32: + case elfcpp::R_TILEGX_TLS_TPOFF64: + case elfcpp::R_TILEGX_TLS_DTPMOD32: + case elfcpp::R_TILEGX_TLS_DTPMOD64: + case elfcpp::R_TILEGX_TLS_DTPOFF32: + case elfcpp::R_TILEGX_TLS_DTPOFF64: + gold_error_at_location(relinfo, relnum, rela.get_r_offset(), + _("unexpected reloc %u in object file"), + r_type); + break; + + default: + gold_error_at_location(relinfo, relnum, rela.get_r_offset(), + _("unsupported reloc %u"), + r_type); + break; + } + + return true; +} + +// Relocate section data. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::relocate_section( + const Relocate_info<size, big_endian>* relinfo, + unsigned int sh_type, + const unsigned char* prelocs, + size_t reloc_count, + Output_section* output_section, + bool needs_special_offset_handling, + unsigned char* view, + typename elfcpp::Elf_types<size>::Elf_Addr address, + section_size_type view_size, + const Reloc_symbol_changes* reloc_symbol_changes) +{ + typedef Target_tilegx<size, big_endian> Tilegx; + typedef typename Target_tilegx<size, big_endian>::Relocate Tilegx_relocate; + + gold_assert(sh_type == elfcpp::SHT_RELA); + + gold::relocate_section<size, big_endian, Tilegx, + elfcpp::SHT_RELA, Tilegx_relocate>( + relinfo, + this, + prelocs, + reloc_count, + output_section, + needs_special_offset_handling, + view, + address, + view_size, + reloc_symbol_changes); +} + +// Apply an incremental relocation. Incremental relocations always refer +// to global symbols. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::apply_relocation( + const Relocate_info<size, big_endian>* relinfo, + typename elfcpp::Elf_types<size>::Elf_Addr r_offset, + unsigned int r_type, + typename elfcpp::Elf_types<size>::Elf_Swxword r_addend, + const Symbol* gsym, + unsigned char* view, + typename elfcpp::Elf_types<size>::Elf_Addr address, + section_size_type view_size) +{ + gold::apply_relocation<size, big_endian, Target_tilegx<size, big_endian>, + typename Target_tilegx<size, big_endian>::Relocate>( + relinfo, + this, + r_offset, + r_type, + r_addend, + gsym, + view, + address, + view_size); +} + +// Return the size of a relocation while scanning during a relocatable +// link. + +template<int size, bool big_endian> +unsigned int +Target_tilegx<size,big_endian>::Relocatable_size_for_reloc::get_size_for_reloc( + unsigned int, Relobj*) +{ + // We are always SHT_RELA, so we should never get here. + gold_unreachable(); + return 0; +} + +// Scan the relocs during a relocatable link. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::scan_relocatable_relocs( + 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_symbols, + Relocatable_relocs* rr) +{ + gold_assert(sh_type == elfcpp::SHT_RELA); + + typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA, + Relocatable_size_for_reloc> Scan_relocatable_relocs; + + gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA, + Scan_relocatable_relocs>( + symtab, + layout, + object, + data_shndx, + prelocs, + reloc_count, + output_section, + needs_special_offset_handling, + local_symbol_count, + plocal_symbols, + rr); +} + +// Relocate a section during a relocatable link. + +template<int size, bool big_endian> +void +Target_tilegx<size, big_endian>::relocate_relocs( + const Relocate_info<size, big_endian>* relinfo, + unsigned int sh_type, + const unsigned char* prelocs, + size_t reloc_count, + Output_section* output_section, + off_t 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) +{ + gold_assert(sh_type == elfcpp::SHT_RELA); + + gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>( + relinfo, + prelocs, + reloc_count, + output_section, + offset_in_output_section, + rr, + view, + view_address, + view_size, + reloc_view, + reloc_view_size); +} + +// Return the value to use for a dynamic which requires special +// treatment. This is how we support equality comparisons of function +// pointers across shared library boundaries, as described in the +// processor specific ABI supplement. + +template<int size, bool big_endian> +uint64_t +Target_tilegx<size, big_endian>::do_dynsym_value(const Symbol* gsym) const +{ + gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); + return this->plt_address_for_global(gsym) + gsym->plt_offset(); +} + +// Return the value to use for the base of a DW_EH_PE_datarel offset +// in an FDE. Solaris and SVR4 use DW_EH_PE_datarel because their +// assembler can not write out the difference between two labels in +// different sections, so instead of using a pc-relative value they +// use an offset from the GOT. + +template<int size, bool big_endian> +uint64_t +Target_tilegx<size, big_endian>::do_ehframe_datarel_base() const +{ + gold_assert(this->global_offset_table_ != NULL); + Symbol* sym = this->global_offset_table_; + Sized_symbol<size>* ssym = static_cast<Sized_symbol<size>*>(sym); + return ssym->value(); +} + +// The selector for tilegx object files. + +template<int size, bool big_endian> +class Target_selector_tilegx : public Target_selector +{ +public: + Target_selector_tilegx() + : Target_selector(elfcpp::EM_TILEGX, size, big_endian, + (size == 64 + ? (big_endian ? "elf64-tilegx-be" : "elf64-tilegx-le") + : (big_endian ? "elf32-tilegx-be" + : "elf32-tilegx-le")), + (size == 64 + ? (big_endian ? "elf64tilegx_be" : "elf64tilegx") + : (big_endian ? "elf32tilegx_be" : "elf32tilegx"))) + { } + + Target* + do_instantiate_target() + { return new Target_tilegx<size, big_endian>(); } + +}; + +Target_selector_tilegx<64, false> target_selector_tilegx64_le; +Target_selector_tilegx<32, false> target_selector_tilegx32_le; +Target_selector_tilegx<64, true> target_selector_tilegx64_be; +Target_selector_tilegx<32, true> target_selector_tilegx32_be; +} // End anonymous namespace. |