4934 lines
188 KiB
C++
4934 lines
188 KiB
C++
// tilegx.cc -- tilegx target support for gold.
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// Copyright (C) 2012-2015 Free Software Foundation, Inc.
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// Written by Jiong Wang (jiwang@tilera.com)
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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#include "gold.h"
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#include <cstring>
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#include "elfcpp.h"
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#include "dwarf.h"
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#include "parameters.h"
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#include "reloc.h"
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#include "tilegx.h"
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#include "object.h"
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#include "symtab.h"
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#include "layout.h"
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#include "output.h"
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#include "copy-relocs.h"
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#include "target.h"
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#include "target-reloc.h"
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#include "target-select.h"
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#include "tls.h"
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#include "gc.h"
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#include "icf.h"
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// the first got entry reserved
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const int32_t TILEGX_GOT_RESERVE_COUNT = 1;
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// the first two .got.plt entry reserved
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const int32_t TILEGX_GOTPLT_RESERVE_COUNT = 2;
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// 1. for both 64/32 bit mode, the instruction bundle is always 64bit.
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// 2. thus .plt section should always be aligned to 64 bit.
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const int32_t TILEGX_INST_BUNDLE_SIZE = 64;
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namespace
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{
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using namespace gold;
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// A class to handle the PLT data.
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// This is an abstract base class that handles most of the linker details
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// but does not know the actual contents of PLT entries. The derived
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// classes below fill in those details.
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template<int size, bool big_endian>
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class Output_data_plt_tilegx : public Output_section_data
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{
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public:
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typedef Output_data_reloc<elfcpp::SHT_RELA, true,size, big_endian>
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Reloc_section;
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Output_data_plt_tilegx(Layout* layout, uint64_t addralign,
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Output_data_got<size, big_endian>* got,
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Output_data_space* got_plt,
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Output_data_space* got_irelative)
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: Output_section_data(addralign), layout_(layout),
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irelative_rel_(NULL), got_(got), got_plt_(got_plt),
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got_irelative_(got_irelative), count_(0),
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irelative_count_(0), free_list_()
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{ this->init(layout); }
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Output_data_plt_tilegx(Layout* layout, uint64_t plt_entry_size,
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Output_data_got<size, big_endian>* got,
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Output_data_space* got_plt,
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Output_data_space* got_irelative,
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unsigned int plt_count)
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: Output_section_data((plt_count + 1) * plt_entry_size,
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TILEGX_INST_BUNDLE_SIZE, false),
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layout_(layout), irelative_rel_(NULL), got_(got),
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got_plt_(got_plt), got_irelative_(got_irelative), count_(plt_count),
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irelative_count_(0), free_list_()
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{
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this->init(layout);
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// Initialize the free list and reserve the first entry.
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this->free_list_.init((plt_count + 1) * plt_entry_size, false);
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this->free_list_.remove(0, plt_entry_size);
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}
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// Initialize the PLT section.
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void
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init(Layout* layout);
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// Add an entry to the PLT.
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void
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add_entry(Symbol_table*, Layout*, Symbol* gsym);
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// Add an entry to the PLT for a local STT_GNU_IFUNC symbol.
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unsigned int
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add_local_ifunc_entry(Symbol_table*, Layout*,
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Sized_relobj_file<size, big_endian>*, unsigned int);
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// Add the relocation for a PLT entry.
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void
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add_relocation(Symbol_table*, Layout*, Symbol*, unsigned int);
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// Return the .rela.plt section data.
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Reloc_section*
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rela_plt()
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{ return this->rel_; }
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// Return where the IRELATIVE relocations should go in the PLT
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// relocations.
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Reloc_section*
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rela_irelative(Symbol_table*, Layout*);
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// Return whether we created a section for IRELATIVE relocations.
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bool
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has_irelative_section() const
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{ return this->irelative_rel_ != NULL; }
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// Return the number of PLT entries.
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unsigned int
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entry_count() const
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{ return this->count_ + this->irelative_count_; }
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// Return the offset of the first non-reserved PLT entry.
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unsigned int
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first_plt_entry_offset()
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{ return this->get_plt_entry_size(); }
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// Return the size of a PLT entry.
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unsigned int
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get_plt_entry_size() const
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{ return plt_entry_size; }
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// Reserve a slot in the PLT for an existing symbol in an incremental update.
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void
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reserve_slot(unsigned int plt_index)
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{
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this->free_list_.remove((plt_index + 1) * this->get_plt_entry_size(),
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(plt_index + 2) * this->get_plt_entry_size());
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}
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// Return the PLT address to use for a global symbol.
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uint64_t
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address_for_global(const Symbol*);
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// Return the PLT address to use for a local symbol.
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uint64_t
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address_for_local(const Relobj*, unsigned int symndx);
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protected:
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// Fill in the first PLT entry.
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void
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fill_first_plt_entry(unsigned char*);
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// Fill in a normal PLT entry. Returns the offset into the entry that
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// should be the initial GOT slot value.
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void
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fill_plt_entry(unsigned char*,
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typename elfcpp::Elf_types<size>::Elf_Addr,
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unsigned int,
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typename elfcpp::Elf_types<size>::Elf_Addr,
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unsigned int, unsigned int);
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void
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do_adjust_output_section(Output_section* os);
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// Write to a map file.
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void
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do_print_to_mapfile(Mapfile* mapfile) const
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{ mapfile->print_output_data(this, _("** PLT")); }
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private:
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// Set the final size.
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void
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set_final_data_size();
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// Write out the PLT data.
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void
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do_write(Output_file*);
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// A pointer to the Layout class, so that we can find the .dynamic
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// section when we write out the GOT PLT section.
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Layout* layout_;
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// The reloc section.
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Reloc_section* rel_;
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// The IRELATIVE relocs, if necessary. These must follow the
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// regular PLT relocations.
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Reloc_section* irelative_rel_;
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// The .got section.
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Output_data_got<size, big_endian>* got_;
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// The .got.plt section.
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Output_data_space* got_plt_;
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// The part of the .got.plt section used for IRELATIVE relocs.
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Output_data_space* got_irelative_;
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// The number of PLT entries.
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unsigned int count_;
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// Number of PLT entries with R_TILEGX_IRELATIVE relocs. These
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// follow the regular PLT entries.
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unsigned int irelative_count_;
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// List of available regions within the section, for incremental
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// update links.
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Free_list free_list_;
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// The size of an entry in the PLT.
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static const int plt_entry_size = 40;
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// The first entry in the PLT.
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static const unsigned char first_plt_entry[plt_entry_size];
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// Other entries in the PLT for an executable.
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static const unsigned char plt_entry[plt_entry_size];
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};
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// The tilegx target class.
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// See the ABI at
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// http://www.tilera.com/scm
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// TLS info comes from
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// http://people.redhat.com/drepper/tls.pdf
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template<int size, bool big_endian>
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class Target_tilegx : public Sized_target<size, big_endian>
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{
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public:
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// TileGX use RELA
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typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>
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Reloc_section;
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Target_tilegx(const Target::Target_info* info = &tilegx_info)
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: Sized_target<size, big_endian>(info),
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got_(NULL), plt_(NULL), got_plt_(NULL), got_irelative_(NULL),
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global_offset_table_(NULL), tilegx_dynamic_(NULL), rela_dyn_(NULL),
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rela_irelative_(NULL), copy_relocs_(elfcpp::R_TILEGX_COPY),
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got_mod_index_offset_(-1U),
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tls_get_addr_sym_defined_(false)
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{ }
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// Scan the relocations to look for symbol adjustments.
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void
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gc_process_relocs(Symbol_table* symtab,
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Layout* layout,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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unsigned int sh_type,
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const unsigned char* prelocs,
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size_t reloc_count,
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Output_section* output_section,
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bool needs_special_offset_handling,
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size_t local_symbol_count,
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const unsigned char* plocal_symbols);
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// Scan the relocations to look for symbol adjustments.
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void
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scan_relocs(Symbol_table* symtab,
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Layout* layout,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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unsigned int sh_type,
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const unsigned char* prelocs,
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size_t reloc_count,
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Output_section* output_section,
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bool needs_special_offset_handling,
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size_t local_symbol_count,
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const unsigned char* plocal_symbols);
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// Finalize the sections.
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void
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do_finalize_sections(Layout*, const Input_objects*, Symbol_table*);
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// Return the value to use for a dynamic which requires special
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// treatment.
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uint64_t
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do_dynsym_value(const Symbol*) const;
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// Relocate a section.
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void
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relocate_section(const Relocate_info<size, big_endian>*,
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unsigned int sh_type,
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const unsigned char* prelocs,
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size_t reloc_count,
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Output_section* output_section,
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bool needs_special_offset_handling,
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unsigned char* view,
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typename elfcpp::Elf_types<size>::Elf_Addr view_address,
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section_size_type view_size,
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const Reloc_symbol_changes*);
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// Scan the relocs during a relocatable link.
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void
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scan_relocatable_relocs(Symbol_table* symtab,
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Layout* layout,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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unsigned int sh_type,
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const unsigned char* prelocs,
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size_t reloc_count,
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Output_section* output_section,
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bool needs_special_offset_handling,
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size_t local_symbol_count,
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const unsigned char* plocal_symbols,
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Relocatable_relocs*);
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// Relocate a section during a relocatable link.
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void
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relocate_relocs(
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const Relocate_info<size, big_endian>*,
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unsigned int sh_type,
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const unsigned char* prelocs,
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size_t reloc_count,
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Output_section* output_section,
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typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section,
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const Relocatable_relocs*,
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unsigned char* view,
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typename elfcpp::Elf_types<size>::Elf_Addr view_address,
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section_size_type view_size,
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unsigned char* reloc_view,
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section_size_type reloc_view_size);
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// Return whether SYM is defined by the ABI.
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bool
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do_is_defined_by_abi(const Symbol* sym) const
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{ return strcmp(sym->name(), "__tls_get_addr") == 0; }
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// define tilegx specific symbols
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virtual void
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do_define_standard_symbols(Symbol_table*, Layout*);
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// Return the PLT section.
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uint64_t
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do_plt_address_for_global(const Symbol* gsym) const
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{ return this->plt_section()->address_for_global(gsym); }
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uint64_t
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do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const
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{ return this->plt_section()->address_for_local(relobj, symndx); }
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// This function should be defined in targets that can use relocation
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// types to determine (implemented in local_reloc_may_be_function_pointer
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// and global_reloc_may_be_function_pointer)
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// if a function's pointer is taken. ICF uses this in safe mode to only
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// fold those functions whose pointer is defintely not taken. For tilegx
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// pie binaries, safe ICF cannot be done by looking at relocation types.
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bool
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do_can_check_for_function_pointers() const
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{ return true; }
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// Return the base for a DW_EH_PE_datarel encoding.
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uint64_t
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do_ehframe_datarel_base() const;
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// Return whether there is a GOT section.
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bool
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has_got_section() const
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{ return this->got_ != NULL; }
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// Return the size of the GOT section.
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section_size_type
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got_size() const
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{
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gold_assert(this->got_ != NULL);
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return this->got_->data_size();
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}
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// Return the number of entries in the GOT.
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unsigned int
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got_entry_count() const
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{
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if (this->got_ == NULL)
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return 0;
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return this->got_size() / (size / 8);
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}
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// Return the number of entries in the PLT.
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unsigned int
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plt_entry_count() const;
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// Return the offset of the first non-reserved PLT entry.
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unsigned int
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first_plt_entry_offset() const;
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// Return the size of each PLT entry.
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unsigned int
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plt_entry_size() const;
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// Create the GOT section for an incremental update.
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Output_data_got_base*
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init_got_plt_for_update(Symbol_table* symtab,
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Layout* layout,
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unsigned int got_count,
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unsigned int plt_count);
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// Reserve a GOT entry for a local symbol, and regenerate any
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// necessary dynamic relocations.
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void
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reserve_local_got_entry(unsigned int got_index,
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Sized_relobj<size, big_endian>* obj,
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unsigned int r_sym,
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unsigned int got_type);
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// Reserve a GOT entry for a global symbol, and regenerate any
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// necessary dynamic relocations.
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void
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reserve_global_got_entry(unsigned int got_index, Symbol* gsym,
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unsigned int got_type);
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// Register an existing PLT entry for a global symbol.
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void
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register_global_plt_entry(Symbol_table*, Layout*, unsigned int plt_index,
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Symbol* gsym);
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// Force a COPY relocation for a given symbol.
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void
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emit_copy_reloc(Symbol_table*, Symbol*, Output_section*, off_t);
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// Apply an incremental relocation.
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void
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apply_relocation(const Relocate_info<size, big_endian>* relinfo,
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typename elfcpp::Elf_types<size>::Elf_Addr r_offset,
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unsigned int r_type,
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typename elfcpp::Elf_types<size>::Elf_Swxword r_addend,
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const Symbol* gsym,
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unsigned char* view,
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typename elfcpp::Elf_types<size>::Elf_Addr address,
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section_size_type view_size);
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private:
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// The class which scans relocations.
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class Scan
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{
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public:
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Scan()
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: issued_non_pic_error_(false)
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{ }
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static inline int
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get_reference_flags(unsigned int r_type);
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inline void
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local(Symbol_table* symtab, Layout* layout, Target_tilegx* target,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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Output_section* output_section,
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const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
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const elfcpp::Sym<size, big_endian>& lsym,
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bool is_discarded);
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inline void
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global(Symbol_table* symtab, Layout* layout, Target_tilegx* target,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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Output_section* output_section,
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const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
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Symbol* gsym);
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inline bool
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local_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout,
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Target_tilegx* target,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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Output_section* output_section,
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const elfcpp::Rela<size, big_endian>& reloc,
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unsigned int r_type,
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const elfcpp::Sym<size, big_endian>& lsym);
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inline bool
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global_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout,
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Target_tilegx* target,
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Sized_relobj_file<size, big_endian>* object,
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unsigned int data_shndx,
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Output_section* output_section,
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const elfcpp::Rela<size, big_endian>& reloc,
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unsigned int r_type,
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Symbol* gsym);
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private:
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static void
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unsupported_reloc_local(Sized_relobj_file<size, big_endian>*,
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unsigned int r_type);
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static void
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unsupported_reloc_global(Sized_relobj_file<size, big_endian>*,
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unsigned int r_type, Symbol*);
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void
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check_non_pic(Relobj*, unsigned int r_type);
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inline bool
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possible_function_pointer_reloc(unsigned int r_type);
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bool
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reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*,
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unsigned int r_type);
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// Whether we have issued an error about a non-PIC compilation.
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bool issued_non_pic_error_;
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};
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// The class which implements relocation.
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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)
|
|
{
|
|
unsigned int r_type = elfcpp::elf_r_type<size>(reloc.get_r_info());
|
|
this->copy_relocs_.copy_reloc(symtab, layout,
|
|
symtab->get_sized_symbol<size>(sym),
|
|
object, shndx, output_section,
|
|
r_type, reloc.get_r_offset(),
|
|
reloc.get_r_addend(),
|
|
this->rela_dyn_section(layout));
|
|
}
|
|
|
|
// Information about this specific target which we pass to the
|
|
// 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_;
|
|
// 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
|
|
"_start", // entry_symbol_name
|
|
32, // hash_entry_size
|
|
};
|
|
|
|
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
|
|
"_start", // entry_symbol_name
|
|
32, // hash_entry_size
|
|
};
|
|
|
|
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
|
|
"_start", // entry_symbol_name
|
|
32, // hash_entry_size
|
|
};
|
|
|
|
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
|
|
"_start", // entry_symbol_name
|
|
32, // hash_entry_size
|
|
};
|
|
|
|
// 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;
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typedef Relocate_functions<size, big_endian> Base;
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public:
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static inline void
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abs64(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend)
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{
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This::template rela_ua<64>(view, object, psymval, addend, 0, 0,
|
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0xffffffffffffffffllu);
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}
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static inline void
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abs32(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend)
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{
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This::template rela_ua<32>(view, object, psymval, addend, 0, 0,
|
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0xffffffff);
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}
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static inline void
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abs16(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend)
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{
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This::template rela_ua<16>(view, object, psymval, addend, 0, 0,
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0xffff);
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}
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static inline void
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pc_abs64(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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typename elfcpp::Elf_types<size>::Elf_Addr address)
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{
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This::template pcrela_ua<64>(view, object, psymval, addend, address, 0, 0,
|
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0xffffffffffffffffllu);
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}
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static inline void
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pc_abs32(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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typename elfcpp::Elf_types<size>::Elf_Addr address)
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{
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This::template pcrela_ua<32>(view, object, psymval, addend, address, 0, 0,
|
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0xffffffff);
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}
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static inline void
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pc_abs16(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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typename elfcpp::Elf_types<size>::Elf_Addr address)
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{
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This::template pcrela_ua<16>(view, object, psymval, addend, address, 0, 0,
|
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0xffff);
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}
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static inline void
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imm_x_general(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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Tilegx_howto &r_howto)
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{
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This::template rela<64>(view, object, psymval, addend,
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(elfcpp::Elf_Xword)(r_howto.srshift),
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(elfcpp::Elf_Xword)(r_howto.doffset),
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(elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1));
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}
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static inline void
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imm_x_pcrel_general(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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typename elfcpp::Elf_types<size>::Elf_Addr address,
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Tilegx_howto &r_howto)
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{
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This::template pcrela<64>(view, object, psymval, addend, address,
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(elfcpp::Elf_Xword)(r_howto.srshift),
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(elfcpp::Elf_Xword)(r_howto.doffset),
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(elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1));
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}
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static inline void
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imm_x_two_part_general(unsigned char* view,
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const Sized_relobj_file<size, big_endian>* object,
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const Symbol_value<size>* psymval,
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typename elfcpp::Elf_types<size>::Elf_Addr addend,
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typename elfcpp::Elf_types<size>::Elf_Addr address,
|
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unsigned int r_type)
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{
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elfcpp::Elf_Xword doffset1 = 0llu;
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elfcpp::Elf_Xword doffset2 = 0llu;
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elfcpp::Elf_Xword dmask1 = 0llu;
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elfcpp::Elf_Xword dmask2 = 0llu;
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elfcpp::Elf_Xword rshift = 0llu;
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unsigned int pc_rel = 0;
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|
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switch (r_type)
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{
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case elfcpp::R_TILEGX_BROFF_X1:
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doffset1 = 31llu;
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doffset2 = 37llu;
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dmask1 = 0x3fllu;
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dmask2 = 0x1ffc0llu;
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rshift = 3llu;
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pc_rel = 1;
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break;
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case elfcpp::R_TILEGX_DEST_IMM8_X1:
|
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doffset1 = 31llu;
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doffset2 = 43llu;
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dmask1 = 0x3fllu;
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dmask2 = 0xc0llu;
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rshift = 0llu;
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break;
|
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}
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|
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if (pc_rel)
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This::template pcrela<64>(view, object, psymval, addend, address,
|
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rshift, doffset1, dmask1, doffset2, dmask2);
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else
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This::template rela<64>(view, object, psymval, addend, rshift,
|
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doffset1, dmask1, doffset2, dmask2);
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|
|
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}
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|
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static inline void
|
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tls_relax(unsigned char* view, unsigned int r_type,
|
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tls::Tls_optimization opt_t)
|
|
{
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|
|
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const uint64_t TILEGX_X_MOVE_R0_R0 = 0x283bf8005107f000llu;
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const uint64_t TILEGX_Y_MOVE_R0_R0 = 0xae05f800540bf000llu;
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const uint64_t TILEGX_X_LD = 0x286ae80000000000llu;
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const uint64_t TILEGX_X_LD4S = 0x286a980000000000llu;
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const uint64_t TILEGX_X1_FULL_MASK = 0x3fffffff80000000llu;
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const uint64_t TILEGX_X0_RRR_MASK = 0x000000007ffc0000llu;
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const uint64_t TILEGX_X1_RRR_MASK = 0x3ffe000000000000llu;
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const uint64_t TILEGX_Y0_RRR_MASK = 0x00000000780c0000llu;
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const uint64_t TILEGX_Y1_RRR_MASK = 0x3c06000000000000llu;
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const uint64_t TILEGX_X0_RRR_SRCB_MASK = 0x000000007ffff000llu;
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const uint64_t TILEGX_X1_RRR_SRCB_MASK = 0x3ffff80000000000llu;
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const uint64_t TILEGX_Y0_RRR_SRCB_MASK = 0x00000000780ff000llu;
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const uint64_t TILEGX_Y1_RRR_SRCB_MASK = 0x3c07f80000000000llu;
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const uint64_t TILEGX_X_ADD_R0_R0_TP = 0x2807a800500f5000llu;
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const uint64_t TILEGX_Y_ADD_R0_R0_TP = 0x9a13a8002c275000llu;
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const uint64_t TILEGX_X_ADDX_R0_R0_TP = 0x2805a800500b5000llu;
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const uint64_t TILEGX_Y_ADDX_R0_R0_TP = 0x9a01a8002c035000llu;
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const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_MASK =
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(TILEGX_X0_RRR_MASK | (0x3Fllu << 12));
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const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_MASK =
|
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(TILEGX_X1_RRR_MASK | (0x3Fllu << 43));
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const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_MASK =
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(TILEGX_Y0_RRR_MASK | (0x3Fllu << 12));
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const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_MASK =
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(TILEGX_Y1_RRR_MASK | (0x3Fllu << 43));
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const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK =
|
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(TILEGX_X0_RRR_SRCB_MASK | (0x3Fllu << 6));
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const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK =
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(TILEGX_X1_RRR_SRCB_MASK | (0x3Fllu << 37));
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|
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const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK =
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(TILEGX_Y0_RRR_SRCB_MASK | (0x3Fllu << 6));
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const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK =
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(TILEGX_Y1_RRR_SRCB_MASK | (0x3Fllu << 37));
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typedef typename elfcpp::Swap<64, big_endian>::Valtype Valtype;
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Valtype* wv = reinterpret_cast<Valtype*>(view);
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Valtype val = elfcpp::Swap<64, big_endian>::readval(wv);
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Valtype reloc = 0;
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switch (r_type)
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{
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case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
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if (opt_t == tls::TLSOPT_NONE) {
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// GD/IE: 1. copy dest operand into the second source operand
|
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// 2. change the opcode to "add"
|
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reloc = (val & 0x3Fllu) << 12; // featch the dest reg
|
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reloc |= ((size == 32
|
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? TILEGX_X_ADDX_R0_R0_TP
|
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: TILEGX_X_ADD_R0_R0_TP)
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& TILEGX_X0_RRR_MASK); // change opcode
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val &= ~R_TILEGX_IMM8_X0_TLS_ADD_MASK;
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} else if (opt_t == tls::TLSOPT_TO_LE) {
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// LE: 1. copy dest operand into the first source operand
|
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// 2. change the opcode to "move"
|
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reloc = (val & 0x3Fllu) << 6;
|
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reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK);
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val &= ~R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK;
|
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} else
|
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gold_unreachable();
|
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break;
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case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
|
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if (opt_t == tls::TLSOPT_NONE) {
|
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reloc = (val & (0x3Fllu << 31)) << 12;
|
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reloc |= ((size == 32
|
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? TILEGX_X_ADDX_R0_R0_TP
|
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: TILEGX_X_ADD_R0_R0_TP)
|
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& TILEGX_X1_RRR_MASK);
|
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val &= ~R_TILEGX_IMM8_X1_TLS_ADD_MASK;
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} else if (opt_t == tls::TLSOPT_TO_LE) {
|
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reloc = (val & (0x3Fllu << 31)) << 6;
|
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reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK);
|
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val &= ~R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK;
|
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} else
|
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gold_unreachable();
|
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break;
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case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
|
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if (opt_t == tls::TLSOPT_NONE) {
|
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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;
|
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} 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;
|
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} else
|
|
gold_unreachable();
|
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break;
|
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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;
|
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} else
|
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gold_unreachable();
|
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break;
|
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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;
|
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val &= ~TILEGX_X0_RRR_SRCB_MASK;
|
|
} else if (opt_t == tls::TLSOPT_TO_IE
|
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|| 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)
|
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& TILEGX_X1_RRR_SRCB_MASK;
|
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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 + gsym->plt_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* object,
|
|
unsigned int r_sym)
|
|
{
|
|
return (this->address()
|
|
+ (this->count_ + 1) * this->get_plt_entry_size()
|
|
+ object->local_plt_offset(r_sym));
|
|
}
|
|
|
|
// 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 (!parameters->options().output_is_position_independent()
|
|
&& 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 (parameters->options().output_is_executable()
|
|
&& 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 the .got section is more than 0x8000 bytes, we add
|
|
// 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
|
|
// bit relocations have a greater chance of working.
|
|
if (data_size >= 0x8000)
|
|
symtab->get_sized_symbol<size>(sym)->set_value(
|
|
symtab->get_sized_symbol<size>(sym)->value() + 0x8000);
|
|
}
|
|
|
|
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)
|
|
{
|
|
if (view == NULL)
|
|
return true;
|
|
|
|
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));
|
|
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));
|
|
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;
|
|
int got_offset = 0;
|
|
int got_base = target->got_ != NULL
|
|
? target->got_->current_data_size() >= 0x8000 ? 0x8000 : 0
|
|
: 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) - got_base;
|
|
}
|
|
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) - got_base;
|
|
}
|
|
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));
|
|
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) - got_base;
|
|
} 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) - got_base;
|
|
}
|
|
}
|
|
|
|
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, gold::Default_comdat_behavior>(
|
|
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,
|
|
typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section,
|
|
const Relocatable_relocs* rr,
|
|
unsigned char* view,
|
|
typename elfcpp::Elf_types<size>::Elf_Addr view_address,
|
|
section_size_type view_size,
|
|
unsigned char* reloc_view,
|
|
section_size_type reloc_view_size)
|
|
{
|
|
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);
|
|
}
|
|
|
|
// 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.
|