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authorWalter Lee <walt@tilera.com>2012-09-15 17:11:28 +0000
committerWalter Lee <walt@tilera.com>2012-09-15 17:11:28 +0000
commit5c0b3823c66fbdf7f9d1ddbc395307b1793fd600 (patch)
tree9eab63950674e353fff309ff9f0b4c69b5a5b346 /gold
parentb132a67daa01d296540697e3632f162f6ba45170 (diff)
downloadgdb-5c0b3823c66fbdf7f9d1ddbc395307b1793fd600.zip
gdb-5c0b3823c66fbdf7f9d1ddbc395307b1793fd600.tar.gz
gdb-5c0b3823c66fbdf7f9d1ddbc395307b1793fd600.tar.bz2
Add support for tilegx in gold.
* configure.ac (ENABLE_GOLD): support tilegx* * configure: rebuild elfcpp: * tilegx.h: New file. * elfcpp.h: add EM_TILEGX. gold: * tilegx.cc: New file. * Makefile.am (TARGETSOURCES): Add tilegx.cc (ALL_TARGETOBJS): Add tilegx.$(OBJEXT) * configure.tgt: Add entries for tilegx*. * configure.ac: Likewise. * Makefile.in: Rebuild. * configure: Likewise. * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Handle tilegx.
Diffstat (limited to 'gold')
-rw-r--r--gold/ChangeLog12
-rw-r--r--gold/Makefile.am4
-rw-r--r--gold/Makefile.in4
-rwxr-xr-xgold/configure9
-rw-r--r--gold/configure.ac1
-rw-r--r--gold/configure.tgt8
-rwxr-xr-xgold/testsuite/icf_safe_test.sh2
-rw-r--r--gold/tilegx.cc4907
8 files changed, 4942 insertions, 5 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index 153a87d..6429004 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,15 @@
+2012-09-15 Jiong Wang <jiwang@tilera.com>
+
+ * tilegx.cc: New file.
+ * Makefile.am (TARGETSOURCES): Add tilegx.cc
+ (ALL_TARGETOBJS): Add tilegx.$(OBJEXT)
+ * configure.tgt: Add entries for tilegx*.
+ * configure.ac: Likewise.
+ * Makefile.in: Rebuild.
+ * configure: Likewise.
+ * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Handle
+ tilegx.
+
2012-09-13 Alan Modra <amodra@gmail.com>
* target-reloc.h (scan_relocs): Call scan.local for relocs
diff --git a/gold/Makefile.am b/gold/Makefile.am
index 72ffdf5..aa8caca 100644
--- a/gold/Makefile.am
+++ b/gold/Makefile.am
@@ -144,11 +144,11 @@ DEFFILES = arm-reloc.def
EXTRA_DIST = yyscript.c yyscript.h
TARGETSOURCES = \
- i386.cc x86_64.cc sparc.cc powerpc.cc arm.cc arm-reloc-property.cc
+ i386.cc x86_64.cc sparc.cc powerpc.cc arm.cc arm-reloc-property.cc tilegx.cc
ALL_TARGETOBJS = \
i386.$(OBJEXT) x86_64.$(OBJEXT) sparc.$(OBJEXT) powerpc.$(OBJEXT) \
- arm.$(OBJEXT) arm-reloc-property.$(OBJEXT)
+ arm.$(OBJEXT) arm-reloc-property.$(OBJEXT) tilegx.$(OBJEXT)
libgold_a_SOURCES = $(CCFILES) $(HFILES) $(YFILES) $(DEFFILES)
libgold_a_LIBADD = $(LIBOBJS)
diff --git a/gold/Makefile.in b/gold/Makefile.in
index 356b1d6..c8d8453 100644
--- a/gold/Makefile.in
+++ b/gold/Makefile.in
@@ -488,11 +488,11 @@ YFILES = \
DEFFILES = arm-reloc.def
EXTRA_DIST = yyscript.c yyscript.h
TARGETSOURCES = \
- i386.cc x86_64.cc sparc.cc powerpc.cc arm.cc arm-reloc-property.cc
+ i386.cc x86_64.cc sparc.cc powerpc.cc arm.cc arm-reloc-property.cc tilegx.cc
ALL_TARGETOBJS = \
i386.$(OBJEXT) x86_64.$(OBJEXT) sparc.$(OBJEXT) powerpc.$(OBJEXT) \
- arm.$(OBJEXT) arm-reloc-property.$(OBJEXT)
+ arm.$(OBJEXT) arm-reloc-property.$(OBJEXT) tilegx.$(OBJEXT)
libgold_a_SOURCES = $(CCFILES) $(HFILES) $(YFILES) $(DEFFILES)
libgold_a_LIBADD = $(LIBOBJS)
diff --git a/gold/configure b/gold/configure
index dff9cac..6c28a5d 100755
--- a/gold/configure
+++ b/gold/configure
@@ -3470,6 +3470,15 @@ else
DEFAULT_TARGET_SPARC_FALSE=
fi
+ if test "$targ_obj" = "tilegx"; then
+ DEFAULT_TARGET_TILEGX_TRUE=
+ DEFAULT_TARGET_TILEGX_FALSE='#'
+else
+ DEFAULT_TARGET_TILEGX_TRUE='#'
+ DEFAULT_TARGET_TILEGX_FALSE=
+fi
+
+
if test "$targ_obj" = "x86_64"; then
DEFAULT_TARGET_X86_64_TRUE=
DEFAULT_TARGET_X86_64_FALSE='#'
diff --git a/gold/configure.ac b/gold/configure.ac
index 69fe209..27780c5 100644
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -199,6 +199,7 @@ for targ in $target $canon_targets; do
AM_CONDITIONAL(DEFAULT_TARGET_POWERPC, test "$targ_obj" = "powerpc")
AM_CONDITIONAL(DEFAULT_TARGET_SPARC, test "$targ_obj" = "sparc")
AM_CONDITIONAL(DEFAULT_TARGET_X86_64, test "$targ_obj" = "x86_64")
+ AM_CONDITIONAL(DEFAULT_TARGET_TILEGX, test "$targ_obj" = "tilegx")
fi
fi
fi
diff --git a/gold/configure.tgt b/gold/configure.tgt
index 0f3b1c3..504de2f 100644
--- a/gold/configure.tgt
+++ b/gold/configure.tgt
@@ -72,6 +72,14 @@ x86_64*)
;;
esac
;;
+tilegx*)
+ targ_obj=tilegx
+ targ_machine=EM_TILEGX
+ targ_size=64
+ targ_extra_size=32
+ targ_big_endian=false
+ targ_extra_big_endian=true
+ ;;
sparc-*)
targ_obj=sparc
targ_machine=EM_SPARC
diff --git a/gold/testsuite/icf_safe_test.sh b/gold/testsuite/icf_safe_test.sh
index 74a7fb9..3b2795a 100755
--- a/gold/testsuite/icf_safe_test.sh
+++ b/gold/testsuite/icf_safe_test.sh
@@ -51,7 +51,7 @@ check_fold()
arch_specific_safe_fold()
{
- grep_x86=`grep -q -e "Advanced Micro Devices X86-64" -e "Intel 80386" -e "ARM" $2`
+ grep_x86=`grep -q -e "Advanced Micro Devices X86-64" -e "Intel 80386" -e "ARM" -e "TILE" $2`
if [ $? -eq 0 ];
then
check_fold $1 $3 $4
diff --git a/gold/tilegx.cc b/gold/tilegx.cc
new file mode 100644
index 0000000..037bf54
--- /dev/null
+++ b/gold/tilegx.cc
@@ -0,0 +1,4907 @@
+// tilegx.cc -- tilegx target support for gold.
+
+// Copyright 2012 Free Software Foundation, Inc.
+// Written by Jiong Wang (jiwang@tilera.com)
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
+#include "gold.h"
+
+#include <cstring>
+
+#include "elfcpp.h"
+#include "dwarf.h"
+#include "parameters.h"
+#include "reloc.h"
+#include "tilegx.h"
+#include "object.h"
+#include "symtab.h"
+#include "layout.h"
+#include "output.h"
+#include "copy-relocs.h"
+#include "target.h"
+#include "target-reloc.h"
+#include "target-select.h"
+#include "tls.h"
+#include "gc.h"
+#include "icf.h"
+
+// the first got entry reserved
+const int32_t TILEGX_GOT_RESERVE_COUNT = 1;
+
+// the first two .got.plt entry reserved
+const int32_t TILEGX_GOTPLT_RESERVE_COUNT = 2;
+
+// 1. for both 64/32 bit mode, the instruction bundle is always 64bit.
+// 2. thus .plt section should always be aligned to 64 bit.
+const int32_t TILEGX_INST_BUNDLE_SIZE = 64;
+
+namespace
+{
+
+using namespace gold;
+
+// A class to handle the PLT data.
+// This is an abstract base class that handles most of the linker details
+// but does not know the actual contents of PLT entries. The derived
+// classes below fill in those details.
+
+template<int size, bool big_endian>
+class Output_data_plt_tilegx : public Output_section_data
+{
+ public:
+ typedef Output_data_reloc<elfcpp::SHT_RELA, true,size, big_endian>
+ Reloc_section;
+
+ Output_data_plt_tilegx(Layout* layout, uint64_t addralign,
+ Output_data_got<size, big_endian>* got,
+ Output_data_space* got_plt,
+ Output_data_space* got_irelative)
+ : Output_section_data(addralign), layout_(layout),
+ irelative_rel_(NULL), got_(got), got_plt_(got_plt),
+ got_irelative_(got_irelative), count_(0),
+ irelative_count_(0), free_list_()
+ { this->init(layout); }
+
+ Output_data_plt_tilegx(Layout* layout, uint64_t plt_entry_size,
+ Output_data_got<size, big_endian>* got,
+ Output_data_space* got_plt,
+ Output_data_space* got_irelative,
+ unsigned int plt_count)
+ : Output_section_data((plt_count + 1) * plt_entry_size,
+ TILEGX_INST_BUNDLE_SIZE, false),
+ layout_(layout), irelative_rel_(NULL), got_(got),
+ got_plt_(got_plt), got_irelative_(got_irelative), count_(plt_count),
+ irelative_count_(0), free_list_()
+ {
+ this->init(layout);
+
+ // Initialize the free list and reserve the first entry.
+ this->free_list_.init((plt_count + 1) * plt_entry_size, false);
+ this->free_list_.remove(0, plt_entry_size);
+ }
+
+ // Initialize the PLT section.
+ void
+ init(Layout* layout);
+
+ // Add an entry to the PLT.
+ void
+ add_entry(Symbol_table*, Layout*, Symbol* gsym);
+
+ // Add an entry to the PLT for a local STT_GNU_IFUNC symbol.
+ unsigned int
+ add_local_ifunc_entry(Symbol_table*, Layout*,
+ Sized_relobj_file<size, big_endian>*, unsigned int);
+
+ // Add the relocation for a PLT entry.
+ void
+ add_relocation(Symbol_table*, Layout*, Symbol*, unsigned int);
+
+ // Return the .rela.plt section data.
+ Reloc_section*
+ rela_plt()
+ { return this->rel_; }
+
+ // Return where the IRELATIVE relocations should go in the PLT
+ // relocations.
+ Reloc_section*
+ rela_irelative(Symbol_table*, Layout*);
+
+ // Return whether we created a section for IRELATIVE relocations.
+ bool
+ has_irelative_section() const
+ { return this->irelative_rel_ != NULL; }
+
+ // Return the number of PLT entries.
+ unsigned int
+ entry_count() const
+ { return this->count_ + this->irelative_count_; }
+
+ // Return the offset of the first non-reserved PLT entry.
+ unsigned int
+ first_plt_entry_offset()
+ { return this->get_plt_entry_size(); }
+
+ // Return the size of a PLT entry.
+ unsigned int
+ get_plt_entry_size() const
+ { return plt_entry_size; }
+
+ // Reserve a slot in the PLT for an existing symbol in an incremental update.
+ void
+ reserve_slot(unsigned int plt_index)
+ {
+ this->free_list_.remove((plt_index + 1) * this->get_plt_entry_size(),
+ (plt_index + 2) * this->get_plt_entry_size());
+ }
+
+ // Return the PLT address to use for a global symbol.
+ uint64_t
+ address_for_global(const Symbol*);
+
+ // Return the PLT address to use for a local symbol.
+ uint64_t
+ address_for_local(const Relobj*, unsigned int symndx);
+
+ protected:
+ // Fill in the first PLT entry.
+ void
+ fill_first_plt_entry(unsigned char*);
+
+ // Fill in a normal PLT entry. Returns the offset into the entry that
+ // should be the initial GOT slot value.
+ void
+ fill_plt_entry(unsigned char*,
+ typename elfcpp::Elf_types<size>::Elf_Addr,
+ unsigned int,
+ typename elfcpp::Elf_types<size>::Elf_Addr,
+ unsigned int, unsigned int);
+
+ void
+ do_adjust_output_section(Output_section* os);
+
+ // Write to a map file.
+ void
+ do_print_to_mapfile(Mapfile* mapfile) const
+ { mapfile->print_output_data(this, _("** PLT")); }
+
+ private:
+ // Set the final size.
+ void
+ set_final_data_size();
+
+ // Write out the PLT data.
+ void
+ do_write(Output_file*);
+
+ // A pointer to the Layout class, so that we can find the .dynamic
+ // section when we write out the GOT PLT section.
+ Layout* layout_;
+ // The reloc section.
+ Reloc_section* rel_;
+ // The IRELATIVE relocs, if necessary. These must follow the
+ // regular PLT relocations.
+ Reloc_section* irelative_rel_;
+ // The .got section.
+ Output_data_got<size, big_endian>* got_;
+ // The .got.plt section.
+ Output_data_space* got_plt_;
+ // The part of the .got.plt section used for IRELATIVE relocs.
+ Output_data_space* got_irelative_;
+ // The number of PLT entries.
+ unsigned int count_;
+ // Number of PLT entries with R_TILEGX_IRELATIVE relocs. These
+ // follow the regular PLT entries.
+ unsigned int irelative_count_;
+ // List of available regions within the section, for incremental
+ // update links.
+ Free_list free_list_;
+ // The size of an entry in the PLT.
+ static const int plt_entry_size = 40;
+ // The first entry in the PLT.
+ static const unsigned char first_plt_entry[plt_entry_size];
+ // Other entries in the PLT for an executable.
+ static const unsigned char plt_entry[plt_entry_size];
+};
+
+// The tilegx target class.
+// See the ABI at
+// http://www.tilera.com/scm
+// TLS info comes from
+// http://people.redhat.com/drepper/tls.pdf
+
+template<int size, bool big_endian>
+class Target_tilegx : public Sized_target<size, big_endian>
+{
+ public:
+ // TileGX use RELA
+ typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>
+ Reloc_section;
+
+ Target_tilegx(const Target::Target_info* info = &tilegx_info)
+ : Sized_target<size, big_endian>(info),
+ got_(NULL), plt_(NULL), got_plt_(NULL), got_irelative_(NULL),
+ global_offset_table_(NULL), tilegx_dynamic_(NULL), rela_dyn_(NULL),
+ rela_irelative_(NULL), copy_relocs_(elfcpp::R_TILEGX_COPY),
+ dynbss_(NULL), got_mod_index_offset_(-1U),
+ tls_get_addr_sym_defined_(false)
+ { }
+
+ // Scan the relocations to look for symbol adjustments.
+ void
+ gc_process_relocs(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols);
+
+ // Scan the relocations to look for symbol adjustments.
+ void
+ scan_relocs(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols);
+
+ // Finalize the sections.
+ void
+ do_finalize_sections(Layout*, const Input_objects*, Symbol_table*);
+
+ // Return the value to use for a dynamic which requires special
+ // treatment.
+ uint64_t
+ do_dynsym_value(const Symbol*) const;
+
+ // Relocate a section.
+ void
+ relocate_section(const Relocate_info<size, big_endian>*,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr view_address,
+ section_size_type view_size,
+ const Reloc_symbol_changes*);
+
+ // Scan the relocs during a relocatable link.
+ void
+ scan_relocatable_relocs(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols,
+ Relocatable_relocs*);
+
+ // Relocate a section during a relocatable link.
+ void
+ relocate_relocs(
+ const Relocate_info<size, big_endian>*,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ off_t offset_in_output_section,
+ const Relocatable_relocs*,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr view_address,
+ section_size_type view_size,
+ unsigned char* reloc_view,
+ section_size_type reloc_view_size);
+
+ // Return whether SYM is defined by the ABI.
+ bool
+ do_is_defined_by_abi(const Symbol* sym) const
+ { return strcmp(sym->name(), "__tls_get_addr") == 0; }
+
+ // define tilegx specific symbols
+ virtual void
+ do_define_standard_symbols(Symbol_table*, Layout*);
+
+ // Return the PLT section.
+ uint64_t
+ do_plt_address_for_global(const Symbol* gsym) const
+ { return this->plt_section()->address_for_global(gsym); }
+
+ uint64_t
+ do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const
+ { return this->plt_section()->address_for_local(relobj, symndx); }
+
+ // This function should be defined in targets that can use relocation
+ // types to determine (implemented in local_reloc_may_be_function_pointer
+ // and global_reloc_may_be_function_pointer)
+ // if a function's pointer is taken. ICF uses this in safe mode to only
+ // fold those functions whose pointer is defintely not taken. For tilegx
+ // pie binaries, safe ICF cannot be done by looking at relocation types.
+ bool
+ do_can_check_for_function_pointers() const
+ { return true; }
+
+ // Return the base for a DW_EH_PE_datarel encoding.
+ uint64_t
+ do_ehframe_datarel_base() const;
+
+ // Return whether there is a GOT section.
+ bool
+ has_got_section() const
+ { return this->got_ != NULL; }
+
+ // Return the size of the GOT section.
+ section_size_type
+ got_size() const
+ {
+ gold_assert(this->got_ != NULL);
+ return this->got_->data_size();
+ }
+
+ // Return the number of entries in the GOT.
+ unsigned int
+ got_entry_count() const
+ {
+ if (this->got_ == NULL)
+ return 0;
+ return this->got_size() / (size / 8);
+ }
+
+ // Return the number of entries in the PLT.
+ unsigned int
+ plt_entry_count() const;
+
+ // Return the offset of the first non-reserved PLT entry.
+ unsigned int
+ first_plt_entry_offset() const;
+
+ // Return the size of each PLT entry.
+ unsigned int
+ plt_entry_size() const;
+
+ // Create the GOT section for an incremental update.
+ Output_data_got_base*
+ init_got_plt_for_update(Symbol_table* symtab,
+ Layout* layout,
+ unsigned int got_count,
+ unsigned int plt_count);
+
+ // Reserve a GOT entry for a local symbol, and regenerate any
+ // necessary dynamic relocations.
+ void
+ reserve_local_got_entry(unsigned int got_index,
+ Sized_relobj<size, big_endian>* obj,
+ unsigned int r_sym,
+ unsigned int got_type);
+
+ // Reserve a GOT entry for a global symbol, and regenerate any
+ // necessary dynamic relocations.
+ void
+ reserve_global_got_entry(unsigned int got_index, Symbol* gsym,
+ unsigned int got_type);
+
+ // Register an existing PLT entry for a global symbol.
+ void
+ register_global_plt_entry(Symbol_table*, Layout*, unsigned int plt_index,
+ Symbol* gsym);
+
+ // Force a COPY relocation for a given symbol.
+ void
+ emit_copy_reloc(Symbol_table*, Symbol*, Output_section*, off_t);
+
+ // Apply an incremental relocation.
+ void
+ apply_relocation(const Relocate_info<size, big_endian>* relinfo,
+ typename elfcpp::Elf_types<size>::Elf_Addr r_offset,
+ unsigned int r_type,
+ typename elfcpp::Elf_types<size>::Elf_Swxword r_addend,
+ const Symbol* gsym,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ section_size_type view_size);
+
+ private:
+ // The class which scans relocations.
+ class Scan
+ {
+ public:
+ Scan()
+ : issued_non_pic_error_(false)
+ { }
+
+ static inline int
+ get_reference_flags(unsigned int r_type);
+
+ inline void
+ local(Symbol_table* symtab, Layout* layout, Target_tilegx* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
+ const elfcpp::Sym<size, big_endian>& lsym,
+ bool is_discarded);
+
+ inline void
+ global(Symbol_table* symtab, Layout* layout, Target_tilegx* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
+ Symbol* gsym);
+
+ inline bool
+ local_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout,
+ Target_tilegx* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc,
+ unsigned int r_type,
+ const elfcpp::Sym<size, big_endian>& lsym);
+
+ inline bool
+ global_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout,
+ Target_tilegx* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc,
+ unsigned int r_type,
+ Symbol* gsym);
+
+ private:
+ static void
+ unsupported_reloc_local(Sized_relobj_file<size, big_endian>*,
+ unsigned int r_type);
+
+ static void
+ unsupported_reloc_global(Sized_relobj_file<size, big_endian>*,
+ unsigned int r_type, Symbol*);
+
+ void
+ check_non_pic(Relobj*, unsigned int r_type);
+
+ inline bool
+ possible_function_pointer_reloc(unsigned int r_type);
+
+ bool
+ reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*,
+ unsigned int r_type);
+
+ // Whether we have issued an error about a non-PIC compilation.
+ bool issued_non_pic_error_;
+ };
+
+ // The class which implements relocation.
+ class Relocate
+ {
+ public:
+ Relocate()
+ { }
+
+ ~Relocate()
+ {
+ }
+
+ // Do a relocation. Return false if the caller should not issue
+ // any warnings about this relocation.
+ inline bool
+ relocate(const Relocate_info<size, big_endian>*, Target_tilegx*,
+ Output_section*,
+ size_t relnum, const elfcpp::Rela<size, big_endian>&,
+ unsigned int r_type, const Sized_symbol<size>*,
+ const Symbol_value<size>*,
+ unsigned char*, typename elfcpp::Elf_types<size>::Elf_Addr,
+ section_size_type);
+ };
+
+ // A class which returns the size required for a relocation type,
+ // used while scanning relocs during a relocatable link.
+ class Relocatable_size_for_reloc
+ {
+ public:
+ unsigned int
+ get_size_for_reloc(unsigned int, Relobj*);
+ };
+
+ // Adjust TLS relocation type based on the options and whether this
+ // is a local symbol.
+ static tls::Tls_optimization
+ optimize_tls_reloc(bool is_final, int r_type);
+
+ // Get the GOT section, creating it if necessary.
+ Output_data_got<size, big_endian>*
+ got_section(Symbol_table*, Layout*);
+
+ // Get the GOT PLT section.
+ Output_data_space*
+ got_plt_section() const
+ {
+ gold_assert(this->got_plt_ != NULL);
+ return this->got_plt_;
+ }
+
+ // Create the PLT section.
+ void
+ make_plt_section(Symbol_table* symtab, Layout* layout);
+
+ // Create a PLT entry for a global symbol.
+ void
+ make_plt_entry(Symbol_table*, Layout*, Symbol*);
+
+ // Create a PLT entry for a local STT_GNU_IFUNC symbol.
+ void
+ make_local_ifunc_plt_entry(Symbol_table*, Layout*,
+ Sized_relobj_file<size, big_endian>* relobj,
+ unsigned int local_sym_index);
+
+ // Create a GOT entry for the TLS module index.
+ unsigned int
+ got_mod_index_entry(Symbol_table* symtab, Layout* layout,
+ Sized_relobj_file<size, big_endian>* object);
+
+ // Get the PLT section.
+ Output_data_plt_tilegx<size, big_endian>*
+ plt_section() const
+ {
+ gold_assert(this->plt_ != NULL);
+ return this->plt_;
+ }
+
+ // Get the dynamic reloc section, creating it if necessary.
+ Reloc_section*
+ rela_dyn_section(Layout*);
+
+ // Get the section to use for IRELATIVE relocations.
+ Reloc_section*
+ rela_irelative_section(Layout*);
+
+ // Add a potential copy relocation.
+ void
+ copy_reloc(Symbol_table* symtab, Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int shndx, Output_section* output_section,
+ Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc)
+ {
+ this->copy_relocs_.copy_reloc(symtab, layout,
+ symtab->get_sized_symbol<size>(sym),
+ object, shndx, output_section,
+ reloc, this->rela_dyn_section(layout));
+ }
+
+ // Information about this specific target which we pass to the
+ // general Target structure.
+ static const Target::Target_info tilegx_info;
+
+ // The types of GOT entries needed for this platform.
+ // These values are exposed to the ABI in an incremental link.
+ // Do not renumber existing values without changing the version
+ // number of the .gnu_incremental_inputs section.
+ enum Got_type
+ {
+ GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol
+ GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset
+ GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair
+ GOT_TYPE_TLS_DESC = 3 // GOT entry for TLS_DESC pair
+ };
+
+ // This type is used as the argument to the target specific
+ // relocation routines. The only target specific reloc is
+ // R_X86_64_TLSDESC against a local symbol.
+ struct Tlsdesc_info
+ {
+ Tlsdesc_info(Sized_relobj_file<size, big_endian>* a_object,
+ unsigned int a_r_sym)
+ : object(a_object), r_sym(a_r_sym)
+ { }
+
+ // The object in which the local symbol is defined.
+ Sized_relobj_file<size, big_endian>* object;
+ // The local symbol index in the object.
+ unsigned int r_sym;
+ };
+
+ // The GOT section.
+ Output_data_got<size, big_endian>* got_;
+ // The PLT section.
+ Output_data_plt_tilegx<size, big_endian>* plt_;
+ // The GOT PLT section.
+ Output_data_space* got_plt_;
+ // The GOT section for IRELATIVE relocations.
+ Output_data_space* got_irelative_;
+ // The _GLOBAL_OFFSET_TABLE_ symbol.
+ Symbol* global_offset_table_;
+ // The _TILEGX_DYNAMIC_ symbol.
+ Symbol* tilegx_dynamic_;
+ // The dynamic reloc section.
+ Reloc_section* rela_dyn_;
+ // The section to use for IRELATIVE relocs.
+ Reloc_section* rela_irelative_;
+ // Relocs saved to avoid a COPY reloc.
+ Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_;
+ // Space for variables copied with a COPY reloc.
+ Output_data_space* dynbss_;
+ // Offset of the GOT entry for the TLS module index.
+ unsigned int got_mod_index_offset_;
+ // True if the _tls_get_addr symbol has been defined.
+ bool tls_get_addr_sym_defined_;
+};
+
+template<>
+const Target::Target_info Target_tilegx<64, false>::tilegx_info =
+{
+ 64, // size
+ false, // is_big_endian
+ elfcpp::EM_TILEGX, // machine_code
+ false, // has_make_symbol
+ false, // has_resolve
+ false, // has_code_fill
+ true, // is_default_stack_executable
+ false, // can_icf_inline_merge_sections
+ '\0', // wrap_char
+ "/lib/ld.so.1", // program interpreter
+ 0x10000, // default_text_segment_address
+ 0x10000, // abi_pagesize (overridable by -z max-page-size)
+ 0x10000, // common_pagesize (overridable by -z common-page-size)
+ false, // isolate_execinstr
+ 0, // rosegment_gap
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0, // large_common_section_flags
+ NULL, // attributes_section
+ NULL // attributes_vendor
+};
+
+template<>
+const Target::Target_info Target_tilegx<32, false>::tilegx_info =
+{
+ 32, // size
+ false, // is_big_endian
+ elfcpp::EM_TILEGX, // machine_code
+ false, // has_make_symbol
+ false, // has_resolve
+ false, // has_code_fill
+ true, // is_default_stack_executable
+ false, // can_icf_inline_merge_sections
+ '\0', // wrap_char
+ "/lib32/ld.so.1", // program interpreter
+ 0x10000, // default_text_segment_address
+ 0x10000, // abi_pagesize (overridable by -z max-page-size)
+ 0x10000, // common_pagesize (overridable by -z common-page-size)
+ false, // isolate_execinstr
+ 0, // rosegment_gap
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0, // large_common_section_flags
+ NULL, // attributes_section
+ NULL // attributes_vendor
+};
+
+template<>
+const Target::Target_info Target_tilegx<64, true>::tilegx_info =
+{
+ 64, // size
+ true, // is_big_endian
+ elfcpp::EM_TILEGX, // machine_code
+ false, // has_make_symbol
+ false, // has_resolve
+ false, // has_code_fill
+ true, // is_default_stack_executable
+ false, // can_icf_inline_merge_sections
+ '\0', // wrap_char
+ "/lib/ld.so.1", // program interpreter
+ 0x10000, // default_text_segment_address
+ 0x10000, // abi_pagesize (overridable by -z max-page-size)
+ 0x10000, // common_pagesize (overridable by -z common-page-size)
+ false, // isolate_execinstr
+ 0, // rosegment_gap
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0, // large_common_section_flags
+ NULL, // attributes_section
+ NULL // attributes_vendor
+};
+
+template<>
+const Target::Target_info Target_tilegx<32, true>::tilegx_info =
+{
+ 32, // size
+ true, // is_big_endian
+ elfcpp::EM_TILEGX, // machine_code
+ false, // has_make_symbol
+ false, // has_resolve
+ false, // has_code_fill
+ true, // is_default_stack_executable
+ false, // can_icf_inline_merge_sections
+ '\0', // wrap_char
+ "/lib32/ld.so.1", // program interpreter
+ 0x10000, // default_text_segment_address
+ 0x10000, // abi_pagesize (overridable by -z max-page-size)
+ 0x10000, // common_pagesize (overridable by -z common-page-size)
+ false, // isolate_execinstr
+ 0, // rosegment_gap
+ elfcpp::SHN_UNDEF, // small_common_shndx
+ elfcpp::SHN_UNDEF, // large_common_shndx
+ 0, // small_common_section_flags
+ 0, // large_common_section_flags
+ NULL, // attributes_section
+ NULL // attributes_vendor
+};
+
+// tilegx relocation handlers
+template<int size, bool big_endian>
+class Tilegx_relocate_functions
+{
+public:
+ // overflow check will be supported later
+ typedef enum
+ {
+ STATUS_OKAY, // No error during relocation.
+ STATUS_OVERFLOW, // Relocation overflow.
+ STATUS_BAD_RELOC // Relocation cannot be applied.
+ } Status;
+
+ struct Tilegx_howto
+ {
+ // right shift operand by this number of bits.
+ unsigned char srshift;
+
+ // the offset to apply relocation.
+ unsigned char doffset;
+
+ // set to 1 for pc-relative relocation.
+ unsigned char is_pcrel;
+
+ // size in bits, or 0 if this table entry should be ignored.
+ unsigned char bsize;
+
+ // whether we need to check overflow.
+ unsigned char overflow;
+ };
+
+ static const Tilegx_howto howto[elfcpp::R_TILEGX_NUM];
+
+private:
+
+ // Do a simple rela relocation
+ template<int valsize>
+ static inline void
+ rela(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset,
+ elfcpp::Elf_Xword bitmask)
+ {
+ typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift;
+ else
+ reloc = psymval->value(object, addend) >> srshift;
+
+ elfcpp::Elf_Xword dst_mask = bitmask << doffset;
+
+ val &= ~dst_mask;
+ reloc &= bitmask;
+
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset));
+ }
+
+ // Do a simple rela relocation
+ template<int valsize>
+ static inline void
+ rela_ua(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset,
+ elfcpp::Elf_Xword bitmask)
+ {
+ typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype
+ Valtype;
+ unsigned char* wv = view;
+ Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv);
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift;
+ else
+ reloc = psymval->value(object, addend) >> srshift;
+
+ elfcpp::Elf_Xword dst_mask = bitmask << doffset;
+
+ val &= ~dst_mask;
+ reloc &= bitmask;
+
+ elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv,
+ val | (reloc<<doffset));
+ }
+
+ template<int valsize>
+ static inline void
+ rela(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1,
+ elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2,
+ elfcpp::Elf_Xword bitmask2)
+ {
+ typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift;
+ else
+ reloc = psymval->value(object, addend) >> srshift;
+
+ elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1)
+ | (bitmask2 << doffset2);
+ val &= ~dst_mask;
+ reloc = ((reloc & bitmask1) << doffset1)
+ | ((reloc & bitmask2) << doffset2);
+
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
+
+ }
+
+ // Do a simple PC relative relocation with a Symbol_value with the
+ // addend in the relocation.
+ template<int valsize>
+ static inline void
+ pcrela(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset,
+ elfcpp::Elf_Xword bitmask)
+
+ {
+ typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address)
+ >> srshift;
+ else
+ reloc = (psymval->value(object, addend) - address) >> srshift;
+
+ elfcpp::Elf_Xword dst_mask = bitmask << doffset;
+ val &= ~dst_mask;
+ reloc &= bitmask;
+
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset));
+ }
+
+ template<int valsize>
+ static inline void
+ pcrela_ua(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset,
+ elfcpp::Elf_Xword bitmask)
+
+ {
+ typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype
+ Valtype;
+ unsigned char* wv = view;
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address)
+ >> srshift;
+ else
+ reloc = (psymval->value(object, addend) - address) >> srshift;
+
+ reloc &= bitmask;
+
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, reloc << doffset);
+ }
+
+ template<int valsize>
+ static inline void
+ pcrela(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Swap<size, big_endian>::Valtype addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1,
+ elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2,
+ elfcpp::Elf_Xword bitmask2)
+
+ {
+ typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
+ Valtype reloc = 0;
+ if (size == 32)
+ reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address)
+ >> srshift;
+ else
+ reloc = (psymval->value(object, addend) - address) >> srshift;
+
+ elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1)
+ | (bitmask2 << doffset2);
+ val &= ~dst_mask;
+ reloc = ((reloc & bitmask1) << doffset1)
+ | ((reloc & bitmask2) << doffset2);
+
+ elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
+ }
+
+ typedef Tilegx_relocate_functions<size, big_endian> This;
+ typedef Relocate_functions<size, big_endian> Base;
+
+public:
+
+ static inline void
+ abs64(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend)
+ {
+ This::template rela_ua<64>(view, object, psymval, addend, 0, 0,
+ 0xffffffffffffffffllu);
+ }
+
+ static inline void
+ abs32(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend)
+ {
+ This::template rela_ua<32>(view, object, psymval, addend, 0, 0,
+ 0xffffffff);
+ }
+
+ static inline void
+ abs16(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend)
+ {
+ This::template rela_ua<16>(view, object, psymval, addend, 0, 0,
+ 0xffff);
+ }
+
+ static inline void
+ pc_abs64(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address)
+ {
+ This::template pcrela_ua<64>(view, object, psymval, addend, address, 0, 0,
+ 0xffffffffffffffffllu);
+ }
+
+ static inline void
+ pc_abs32(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address)
+ {
+ This::template pcrela_ua<32>(view, object, psymval, addend, address, 0, 0,
+ 0xffffffff);
+ }
+
+ static inline void
+ pc_abs16(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address)
+ {
+ This::template pcrela_ua<16>(view, object, psymval, addend, address, 0, 0,
+ 0xffff);
+ }
+
+ static inline void
+ imm_x_general(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ Tilegx_howto &r_howto)
+ {
+ This::template rela<64>(view, object, psymval, addend,
+ (elfcpp::Elf_Xword)(r_howto.srshift),
+ (elfcpp::Elf_Xword)(r_howto.doffset),
+ (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1));
+ }
+
+ static inline void
+ imm_x_pcrel_general(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ Tilegx_howto &r_howto)
+ {
+ This::template pcrela<64>(view, object, psymval, addend, address,
+ (elfcpp::Elf_Xword)(r_howto.srshift),
+ (elfcpp::Elf_Xword)(r_howto.doffset),
+ (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1));
+ }
+
+ static inline void
+ imm_x_two_part_general(unsigned char* view,
+ const Sized_relobj_file<size, big_endian>* object,
+ const Symbol_value<size>* psymval,
+ typename elfcpp::Elf_types<size>::Elf_Addr addend,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ unsigned int r_type)
+ {
+
+ elfcpp::Elf_Xword doffset1 = 0llu;
+ elfcpp::Elf_Xword doffset2 = 0llu;
+ elfcpp::Elf_Xword dmask1 = 0llu;
+ elfcpp::Elf_Xword dmask2 = 0llu;
+ elfcpp::Elf_Xword rshift = 0llu;
+ unsigned int pc_rel = 0;
+
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_BROFF_X1:
+ doffset1 = 31llu;
+ doffset2 = 37llu;
+ dmask1 = 0x3fllu;
+ dmask2 = 0x1ffc0llu;
+ rshift = 3llu;
+ pc_rel = 1;
+ break;
+ case elfcpp::R_TILEGX_DEST_IMM8_X1:
+ doffset1 = 31llu;
+ doffset2 = 43llu;
+ dmask1 = 0x3fllu;
+ dmask2 = 0xc0llu;
+ rshift = 0llu;
+ break;
+ }
+
+ if (pc_rel)
+ This::template pcrela<64>(view, object, psymval, addend, address,
+ rshift, doffset1, dmask1, doffset2, dmask2);
+ else
+ This::template rela<64>(view, object, psymval, addend, rshift,
+ doffset1, dmask1, doffset2, dmask2);
+
+ }
+
+ static inline void
+ tls_relax(unsigned char* view, unsigned int r_type,
+ tls::Tls_optimization opt_t)
+ {
+
+ const uint64_t TILEGX_X_MOVE_R0_R0 = 0x283bf8005107f000llu;
+ const uint64_t TILEGX_Y_MOVE_R0_R0 = 0xae05f800540bf000llu;
+ const uint64_t TILEGX_X_LD = 0x286ae80000000000llu;
+ const uint64_t TILEGX_X_LD4S = 0x286a980000000000llu;
+ const uint64_t TILEGX_X1_FULL_MASK = 0x3fffffff80000000llu;
+ const uint64_t TILEGX_X0_RRR_MASK = 0x000000007ffc0000llu;
+ const uint64_t TILEGX_X1_RRR_MASK = 0x3ffe000000000000llu;
+ const uint64_t TILEGX_Y0_RRR_MASK = 0x00000000780c0000llu;
+ const uint64_t TILEGX_Y1_RRR_MASK = 0x3c06000000000000llu;
+ const uint64_t TILEGX_X0_RRR_SRCB_MASK = 0x000000007ffff000llu;
+ const uint64_t TILEGX_X1_RRR_SRCB_MASK = 0x3ffff80000000000llu;
+ const uint64_t TILEGX_Y0_RRR_SRCB_MASK = 0x00000000780ff000llu;
+ const uint64_t TILEGX_Y1_RRR_SRCB_MASK = 0x3c07f80000000000llu;
+ const uint64_t TILEGX_X_ADD_R0_R0_TP = 0x2807a800500f5000llu;
+ const uint64_t TILEGX_Y_ADD_R0_R0_TP = 0x9a13a8002c275000llu;
+ const uint64_t TILEGX_X_ADDX_R0_R0_TP = 0x2805a800500b5000llu;
+ const uint64_t TILEGX_Y_ADDX_R0_R0_TP = 0x9a01a8002c035000llu;
+
+ const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_MASK =
+ (TILEGX_X0_RRR_MASK | (0x3Fllu << 12));
+
+ const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_MASK =
+ (TILEGX_X1_RRR_MASK | (0x3Fllu << 43));
+
+ const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_MASK =
+ (TILEGX_Y0_RRR_MASK | (0x3Fllu << 12));
+
+ const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_MASK =
+ (TILEGX_Y1_RRR_MASK | (0x3Fllu << 43));
+
+ const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK =
+ (TILEGX_X0_RRR_SRCB_MASK | (0x3Fllu << 6));
+
+ const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK =
+ (TILEGX_X1_RRR_SRCB_MASK | (0x3Fllu << 37));
+
+ const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK =
+ (TILEGX_Y0_RRR_SRCB_MASK | (0x3Fllu << 6));
+
+ const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK =
+ (TILEGX_Y1_RRR_SRCB_MASK | (0x3Fllu << 37));
+
+ typedef typename elfcpp::Swap<64, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<64, big_endian>::readval(wv);
+ Valtype reloc = 0;
+
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ // GD/IE: 1. copy dest operand into the second source operand
+ // 2. change the opcode to "add"
+ reloc = (val & 0x3Fllu) << 12; // featch the dest reg
+ reloc |= ((size == 32
+ ? TILEGX_X_ADDX_R0_R0_TP
+ : TILEGX_X_ADD_R0_R0_TP)
+ & TILEGX_X0_RRR_MASK); // change opcode
+ val &= ~R_TILEGX_IMM8_X0_TLS_ADD_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ // LE: 1. copy dest operand into the first source operand
+ // 2. change the opcode to "move"
+ reloc = (val & 0x3Fllu) << 6;
+ reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK);
+ val &= ~R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK;
+ } else
+ gold_unreachable();
+ break;
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = (val & (0x3Fllu << 31)) << 12;
+ reloc |= ((size == 32
+ ? TILEGX_X_ADDX_R0_R0_TP
+ : TILEGX_X_ADD_R0_R0_TP)
+ & TILEGX_X1_RRR_MASK);
+ val &= ~R_TILEGX_IMM8_X1_TLS_ADD_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (val & (0x3Fllu << 31)) << 6;
+ reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK);
+ val &= ~R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK;
+ } else
+ gold_unreachable();
+ break;
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = (val & 0x3Fllu) << 12;
+ reloc |= ((size == 32
+ ? TILEGX_Y_ADDX_R0_R0_TP
+ : TILEGX_Y_ADD_R0_R0_TP)
+ & TILEGX_Y0_RRR_MASK);
+ val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (val & 0x3Fllu) << 6;
+ reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK);
+ val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK;
+ } else
+ gold_unreachable();
+ break;
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = (val & (0x3Fllu << 31)) << 12;
+ reloc |= ((size == 32
+ ? TILEGX_Y_ADDX_R0_R0_TP
+ : TILEGX_Y_ADD_R0_R0_TP)
+ & TILEGX_Y1_RRR_MASK);
+ val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (val & (0x3Fllu << 31)) << 6;
+ reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK);
+ val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK;
+ } else
+ gold_unreachable();
+ break;
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ // GD see comments for optimize_tls_reloc
+ reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK;
+ val &= ~TILEGX_X0_RRR_SRCB_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_IE
+ || opt_t == tls::TLSOPT_TO_LE) {
+ // IE/LE
+ reloc = (size == 32
+ ? TILEGX_X_ADDX_R0_R0_TP
+ : TILEGX_X_ADD_R0_R0_TP)
+ & TILEGX_X0_RRR_SRCB_MASK;
+ val &= ~TILEGX_X0_RRR_SRCB_MASK;
+ }
+ break;
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK;
+ val &= ~TILEGX_X1_RRR_SRCB_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_IE
+ || opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (size == 32
+ ? TILEGX_X_ADDX_R0_R0_TP
+ : TILEGX_X_ADD_R0_R0_TP)
+ & TILEGX_X1_RRR_SRCB_MASK;
+ val &= ~TILEGX_X1_RRR_SRCB_MASK;
+ }
+ break;
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK;
+ val &= ~TILEGX_Y0_RRR_SRCB_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_IE
+ || opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (size == 32
+ ? TILEGX_Y_ADDX_R0_R0_TP
+ : TILEGX_Y_ADD_R0_R0_TP)
+ & TILEGX_Y0_RRR_SRCB_MASK;
+ val &= ~TILEGX_Y0_RRR_SRCB_MASK;
+ }
+ break;
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK;
+ val &= ~TILEGX_Y1_RRR_SRCB_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_IE
+ || opt_t == tls::TLSOPT_TO_LE) {
+ reloc = (size == 32
+ ? TILEGX_Y_ADDX_R0_R0_TP
+ : TILEGX_Y_ADD_R0_R0_TP)
+ & TILEGX_Y1_RRR_SRCB_MASK;
+ val &= ~TILEGX_Y1_RRR_SRCB_MASK;
+ }
+ break;
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ // IE
+ reloc = (size == 32
+ ? TILEGX_X_LD4S
+ : TILEGX_X_LD)
+ & TILEGX_X1_RRR_SRCB_MASK;
+ val &= ~TILEGX_X1_RRR_SRCB_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ // LE
+ reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK;
+ val &= ~TILEGX_X1_RRR_SRCB_MASK;
+ } else
+ gold_unreachable();
+ break;
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ if (opt_t == tls::TLSOPT_TO_IE) {
+ // ld/ld4s r0, r0
+ reloc = (size == 32
+ ? TILEGX_X_LD4S
+ : TILEGX_X_LD) & TILEGX_X1_FULL_MASK;
+ val &= ~TILEGX_X1_FULL_MASK;
+ } else if (opt_t == tls::TLSOPT_TO_LE) {
+ // move r0, r0
+ reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_FULL_MASK;
+ val &= ~TILEGX_X1_FULL_MASK;
+ } else
+ // should be handled in ::relocate
+ gold_unreachable();
+ break;
+ default:
+ gold_unreachable();
+ break;
+ }
+ elfcpp::Swap<64, big_endian>::writeval(wv, val | reloc);
+ }
+};
+
+template<>
+const Tilegx_relocate_functions<64, false>::Tilegx_howto
+Tilegx_relocate_functions<64, false>::howto[elfcpp::R_TILEGX_NUM] =
+{
+ { 0, 0, 0, 0, 0}, // R_TILEGX_NONE
+ { 0, 0, 0, 64, 0}, // R_TILEGX_64
+ { 0, 0, 0, 32, 0}, // R_TILEGX_32
+ { 0, 0, 0, 16, 0}, // R_TILEGX_16
+ { 0, 0, 0, 8, 0}, // R_TILEGX_8
+ { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL
+ { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL
+ { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL
+ { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1
+ { 32, 0, 0, 0, 0}, // R_TILEGX_HW2
+ { 48, 0, 0, 0, 0}, // R_TILEGX_HW3
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST
+ { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST
+ { 0, 0, 0, 0, 0}, // R_TILEGX_COPY
+ { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE
+ { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0
+ { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1
+ { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1
+ { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2
+ { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2
+ { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3
+ { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST
+ { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST
+ { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL
+ { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL
+ { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL
+ { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL
+ { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL
+ { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL
+ { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL
+ { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL
+ { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT
+ { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT
+ { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
+ { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
+ { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32
+ { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY
+};
+
+template<>
+const Tilegx_relocate_functions<32, false>::Tilegx_howto
+Tilegx_relocate_functions<32, false>::howto[elfcpp::R_TILEGX_NUM] =
+{
+ { 0, 0, 0, 0, 0}, // R_TILEGX_NONE
+ { 0, 0, 0, 64, 0}, // R_TILEGX_64
+ { 0, 0, 0, 32, 0}, // R_TILEGX_32
+ { 0, 0, 0, 16, 0}, // R_TILEGX_16
+ { 0, 0, 0, 8, 0}, // R_TILEGX_8
+ { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL
+ { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL
+ { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL
+ { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW2
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW3
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST
+ { 0, 0, 0, 0, 0}, // R_TILEGX_COPY
+ { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE
+ { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0
+ { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1
+ { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1
+ { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2
+ { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2
+ { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3
+ { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST
+ { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST
+ { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL
+ { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL
+ { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT
+ { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT
+ { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
+ { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
+ { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32
+ { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY
+};
+
+template<>
+const Tilegx_relocate_functions<64, true>::Tilegx_howto
+Tilegx_relocate_functions<64, true>::howto[elfcpp::R_TILEGX_NUM] =
+{
+ { 0, 0, 0, 0, 0}, // R_TILEGX_NONE
+ { 0, 0, 0, 64, 0}, // R_TILEGX_64
+ { 0, 0, 0, 32, 0}, // R_TILEGX_32
+ { 0, 0, 0, 16, 0}, // R_TILEGX_16
+ { 0, 0, 0, 8, 0}, // R_TILEGX_8
+ { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL
+ { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL
+ { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL
+ { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1
+ { 32, 0, 0, 0, 0}, // R_TILEGX_HW2
+ { 48, 0, 0, 0, 0}, // R_TILEGX_HW3
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST
+ { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST
+ { 0, 0, 0, 0, 0}, // R_TILEGX_COPY
+ { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE
+ { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0
+ { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1
+ { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1
+ { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2
+ { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2
+ { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3
+ { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST
+ { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST
+ { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL
+ { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL
+ { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL
+ { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL
+ { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL
+ { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL
+ { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL
+ { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL
+ { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT
+ { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT
+ { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
+ { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
+ { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32
+ { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY
+};
+
+template<>
+const Tilegx_relocate_functions<32, true>::Tilegx_howto
+Tilegx_relocate_functions<32, true>::howto[elfcpp::R_TILEGX_NUM] =
+{
+ { 0, 0, 0, 0, 0}, // R_TILEGX_NONE
+ { 0, 0, 0, 64, 0}, // R_TILEGX_64
+ { 0, 0, 0, 32, 0}, // R_TILEGX_32
+ { 0, 0, 0, 16, 0}, // R_TILEGX_16
+ { 0, 0, 0, 8, 0}, // R_TILEGX_8
+ { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL
+ { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL
+ { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL
+ { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW2
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW3
+ { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST
+ { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST
+ { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST
+ { 0, 0, 0, 0, 0}, // R_TILEGX_COPY
+ { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE
+ { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1
+ { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0
+ { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0
+ { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1
+ { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1
+ { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2
+ { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2
+ { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3
+ { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST
+ { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST
+ { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL
+ { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL
+ { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT
+ { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL
+ { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL
+ { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL
+ { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL
+ { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL
+ { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT
+ { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT
+ { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE
+ { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE
+ { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
+ { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
+ { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
+ { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
+ { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
+ { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
+ { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
+ { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
+ { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
+ { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32
+ { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT
+ { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY
+};
+
+// Get the GOT section, creating it if necessary.
+
+template<int size, bool big_endian>
+Output_data_got<size, big_endian>*
+Target_tilegx<size, big_endian>::got_section(Symbol_table* symtab,
+ Layout* layout)
+{
+ if (this->got_ == NULL)
+ {
+ gold_assert(symtab != NULL && layout != NULL);
+
+ // When using -z now, we can treat .got.plt as a relro section.
+ // Without -z now, it is modified after program startup by lazy
+ // PLT relocations.
+ bool is_got_plt_relro = parameters->options().now();
+ Output_section_order got_order = (is_got_plt_relro
+ ? ORDER_RELRO
+ : ORDER_RELRO_LAST);
+ Output_section_order got_plt_order = (is_got_plt_relro
+ ? ORDER_RELRO
+ : ORDER_NON_RELRO_FIRST);
+
+ this->got_ = new Output_data_got<size, big_endian>();
+
+ layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_WRITE),
+ this->got_, got_order, true);
+
+ // Define _GLOBAL_OFFSET_TABLE_ at the start of the PLT.
+ this->global_offset_table_ =
+ symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL,
+ Symbol_table::PREDEFINED,
+ this->got_,
+ 0, 0, elfcpp::STT_OBJECT,
+ elfcpp::STB_LOCAL,
+ elfcpp::STV_HIDDEN, 0,
+ false, false);
+
+ if (parameters->options().shared()) {
+ // we need to keep the address of .dynamic section in the
+ // first got entry for .so
+ this->tilegx_dynamic_ =
+ symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL,
+ Symbol_table::PREDEFINED,
+ layout->dynamic_section(),
+ 0, 0, elfcpp::STT_OBJECT,
+ elfcpp::STB_LOCAL,
+ elfcpp::STV_HIDDEN, 0,
+ false, false);
+
+ this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD);
+ } else
+ // for executable, just set the first entry to zero.
+ this->got_->set_current_data_size(size / 8);
+
+ this->got_plt_ = new Output_data_space(size / 8, "** GOT PLT");
+ layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_WRITE),
+ this->got_plt_, got_plt_order,
+ is_got_plt_relro);
+
+ // The first two entries are reserved.
+ this->got_plt_->set_current_data_size
+ (TILEGX_GOTPLT_RESERVE_COUNT * (size / 8));
+
+ if (!is_got_plt_relro)
+ {
+ // Those bytes can go into the relro segment.
+ layout->increase_relro(size / 8);
+ }
+
+
+ // If there are any IRELATIVE relocations, they get GOT entries
+ // in .got.plt after the jump slot entries.
+ this->got_irelative_
+ = new Output_data_space(size / 8, "** GOT IRELATIVE PLT");
+ layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_WRITE),
+ this->got_irelative_,
+ got_plt_order, is_got_plt_relro);
+ }
+
+ return this->got_;
+}
+
+// Get the dynamic reloc section, creating it if necessary.
+
+template<int size, bool big_endian>
+typename Target_tilegx<size, big_endian>::Reloc_section*
+Target_tilegx<size, big_endian>::rela_dyn_section(Layout* layout)
+{
+ if (this->rela_dyn_ == NULL)
+ {
+ gold_assert(layout != NULL);
+ this->rela_dyn_ = new Reloc_section(parameters->options().combreloc());
+ layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
+ elfcpp::SHF_ALLOC, this->rela_dyn_,
+ ORDER_DYNAMIC_RELOCS, false);
+ }
+ return this->rela_dyn_;
+}
+
+// Get the section to use for IRELATIVE relocs, creating it if
+// necessary. These go in .rela.dyn, but only after all other dynamic
+// relocations. They need to follow the other dynamic relocations so
+// that they can refer to global variables initialized by those
+// relocs.
+
+template<int size, bool big_endian>
+typename Target_tilegx<size, big_endian>::Reloc_section*
+Target_tilegx<size, big_endian>::rela_irelative_section(Layout* layout)
+{
+ if (this->rela_irelative_ == NULL)
+ {
+ // Make sure we have already created the dynamic reloc section.
+ this->rela_dyn_section(layout);
+ this->rela_irelative_ = new Reloc_section(false);
+ layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
+ elfcpp::SHF_ALLOC, this->rela_irelative_,
+ ORDER_DYNAMIC_RELOCS, false);
+ gold_assert(this->rela_dyn_->output_section()
+ == this->rela_irelative_->output_section());
+ }
+ return this->rela_irelative_;
+}
+
+// Initialize the PLT section.
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::init(Layout* layout)
+{
+ this->rel_ = new Reloc_section(false);
+ layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
+ elfcpp::SHF_ALLOC, this->rel_,
+ ORDER_DYNAMIC_PLT_RELOCS, false);
+}
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::do_adjust_output_section(
+ Output_section* os)
+{
+ os->set_entsize(this->get_plt_entry_size());
+}
+
+// Add an entry to the PLT.
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::add_entry(Symbol_table* symtab,
+ Layout* layout, Symbol* gsym)
+{
+ gold_assert(!gsym->has_plt_offset());
+
+ unsigned int plt_index;
+ off_t plt_offset;
+ section_offset_type got_offset;
+
+ unsigned int* pcount;
+ unsigned int reserved;
+ Output_data_space* got;
+ if (gsym->type() == elfcpp::STT_GNU_IFUNC
+ && gsym->can_use_relative_reloc(false))
+ {
+ pcount = &this->irelative_count_;
+ reserved = 0;
+ got = this->got_irelative_;
+ }
+ else
+ {
+ pcount = &this->count_;
+ reserved = TILEGX_GOTPLT_RESERVE_COUNT;
+ got = this->got_plt_;
+ }
+
+ if (!this->is_data_size_valid())
+ {
+ plt_index = *pcount;
+
+ // TILEGX .plt section layout
+ //
+ // ----
+ // plt_header
+ // ----
+ // plt stub
+ // ----
+ // ...
+ // ----
+ //
+ // TILEGX .got.plt section layout
+ //
+ // ----
+ // reserv1
+ // ----
+ // reserv2
+ // ----
+ // entries for normal function
+ // ----
+ // ...
+ // ----
+ // entries for ifunc
+ // ----
+ // ...
+ // ----
+ if (got == this->got_irelative_)
+ plt_offset = plt_index * this->get_plt_entry_size();
+ else
+ plt_offset = (plt_index + 1) * this->get_plt_entry_size();
+
+ ++*pcount;
+
+ got_offset = (plt_index + reserved) * (size / 8);
+ gold_assert(got_offset == got->current_data_size());
+
+ // Every PLT entry needs a GOT entry which points back to the PLT
+ // entry (this will be changed by the dynamic linker, normally
+ // lazily when the function is called).
+ got->set_current_data_size(got_offset + size / 8);
+ }
+ else
+ {
+ // FIXME: This is probably not correct for IRELATIVE relocs.
+
+ // For incremental updates, find an available slot.
+ plt_offset = this->free_list_.allocate(this->get_plt_entry_size(),
+ this->get_plt_entry_size(), 0);
+ if (plt_offset == -1)
+ gold_fallback(_("out of patch space (PLT);"
+ " relink with --incremental-full"));
+
+ // The GOT and PLT entries have a 1-1 correspondance, so the GOT offset
+ // can be calculated from the PLT index, adjusting for the three
+ // reserved entries at the beginning of the GOT.
+ plt_index = plt_offset / this->get_plt_entry_size() - 1;
+ got_offset = (plt_index + reserved) * (size / 8);
+ }
+
+ gsym->set_plt_offset(plt_offset);
+
+ // Every PLT entry needs a reloc.
+ this->add_relocation(symtab, layout, gsym, got_offset);
+
+ // Note that we don't need to save the symbol. The contents of the
+ // PLT are independent of which symbols are used. The symbols only
+ // appear in the relocations.
+}
+
+// Add an entry to the PLT for a local STT_GNU_IFUNC symbol. Return
+// the PLT offset.
+
+template<int size, bool big_endian>
+unsigned int
+Output_data_plt_tilegx<size, big_endian>::add_local_ifunc_entry(
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* relobj,
+ unsigned int local_sym_index)
+{
+ unsigned int plt_offset =
+ this->irelative_count_ * this->get_plt_entry_size();
+ ++this->irelative_count_;
+
+ section_offset_type got_offset = this->got_irelative_->current_data_size();
+
+ // Every PLT entry needs a GOT entry which points back to the PLT
+ // entry.
+ this->got_irelative_->set_current_data_size(got_offset + size / 8);
+
+ // Every PLT entry needs a reloc.
+ Reloc_section* rela = this->rela_irelative(symtab, layout);
+ rela->add_symbolless_local_addend(relobj, local_sym_index,
+ elfcpp::R_TILEGX_IRELATIVE,
+ this->got_irelative_, got_offset, 0);
+
+ return plt_offset;
+}
+
+// Add the relocation for a PLT entry.
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::add_relocation(Symbol_table* symtab,
+ Layout* layout,
+ Symbol* gsym,
+ unsigned int got_offset)
+{
+ if (gsym->type() == elfcpp::STT_GNU_IFUNC
+ && gsym->can_use_relative_reloc(false))
+ {
+ Reloc_section* rela = this->rela_irelative(symtab, layout);
+ rela->add_symbolless_global_addend(gsym, elfcpp::R_TILEGX_IRELATIVE,
+ this->got_irelative_, got_offset, 0);
+ }
+ else
+ {
+ gsym->set_needs_dynsym_entry();
+ this->rel_->add_global(gsym, elfcpp::R_TILEGX_JMP_SLOT, this->got_plt_,
+ got_offset, 0);
+ }
+}
+
+// Return where the IRELATIVE relocations should go in the PLT. These
+// follow the JUMP_SLOT and the TLSDESC relocations.
+
+template<int size, bool big_endian>
+typename Output_data_plt_tilegx<size, big_endian>::Reloc_section*
+Output_data_plt_tilegx<size, big_endian>::rela_irelative(Symbol_table* symtab,
+ Layout* layout)
+{
+ if (this->irelative_rel_ == NULL)
+ {
+ // case we see any later on.
+ this->irelative_rel_ = new Reloc_section(false);
+ layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
+ elfcpp::SHF_ALLOC, this->irelative_rel_,
+ ORDER_DYNAMIC_PLT_RELOCS, false);
+ gold_assert(this->irelative_rel_->output_section()
+ == this->rel_->output_section());
+
+ if (parameters->doing_static_link())
+ {
+ // A statically linked executable will only have a .rela.plt
+ // section to hold R_TILEGX_IRELATIVE relocs for
+ // STT_GNU_IFUNC symbols. The library will use these
+ // symbols to locate the IRELATIVE relocs at program startup
+ // time.
+ symtab->define_in_output_data("__rela_iplt_start", NULL,
+ Symbol_table::PREDEFINED,
+ this->irelative_rel_, 0, 0,
+ elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
+ elfcpp::STV_HIDDEN, 0, false, true);
+ symtab->define_in_output_data("__rela_iplt_end", NULL,
+ Symbol_table::PREDEFINED,
+ this->irelative_rel_, 0, 0,
+ elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
+ elfcpp::STV_HIDDEN, 0, true, true);
+ }
+ }
+ return this->irelative_rel_;
+}
+
+// Return the PLT address to use for a global symbol.
+
+template<int size, bool big_endian>
+uint64_t
+Output_data_plt_tilegx<size, big_endian>::address_for_global(
+ const Symbol* gsym)
+{
+ uint64_t offset = 0;
+ if (gsym->type() == elfcpp::STT_GNU_IFUNC
+ && gsym->can_use_relative_reloc(false))
+ offset = (this->count_ + 1) * this->get_plt_entry_size();
+ return this->address() + offset;
+}
+
+// Return the PLT address to use for a local symbol. These are always
+// IRELATIVE relocs.
+
+template<int size, bool big_endian>
+uint64_t
+Output_data_plt_tilegx<size, big_endian>::address_for_local(const Relobj*,
+ unsigned int)
+{
+ return this->address() + (this->count_ + 1) * this->get_plt_entry_size();
+}
+
+// Set the final size.
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::set_final_data_size()
+{
+ unsigned int count = this->count_ + this->irelative_count_;
+ this->set_data_size((count + 1) * this->get_plt_entry_size());
+}
+
+// The first entry in the PLT for an executable.
+template<>
+const unsigned char
+Output_data_plt_tilegx<64, false>::first_plt_entry[plt_entry_size] =
+{
+ 0x00, 0x30, 0x48, 0x51,
+ 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 }
+ 0x00, 0x30, 0xbc, 0x35,
+ 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 }
+ 0xff, 0xaf, 0x30, 0x40,
+ 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 }
+ // padding
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<32, false>::first_plt_entry[plt_entry_size] =
+{
+ 0x00, 0x30, 0x48, 0x51,
+ 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 }
+ 0x00, 0x30, 0xbc, 0x35,
+ 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 }
+ 0xff, 0xaf, 0x30, 0x40,
+ 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 }
+ // padding
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<64, true>::first_plt_entry[plt_entry_size] =
+{
+ 0x00, 0x30, 0x48, 0x51,
+ 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 }
+ 0x00, 0x30, 0xbc, 0x35,
+ 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 }
+ 0xff, 0xaf, 0x30, 0x40,
+ 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 }
+ // padding
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<32, true>::first_plt_entry[plt_entry_size] =
+{
+ 0x00, 0x30, 0x48, 0x51,
+ 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 }
+ 0x00, 0x30, 0xbc, 0x35,
+ 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 }
+ 0xff, 0xaf, 0x30, 0x40,
+ 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 }
+ // padding
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::fill_first_plt_entry(
+ unsigned char* pov)
+{
+ memcpy(pov, first_plt_entry, plt_entry_size);
+}
+
+// Subsequent entries in the PLT for an executable.
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<64, false>::plt_entry[plt_entry_size] =
+{
+ 0xdc, 0x0f, 0x00, 0x10,
+ 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 }
+ 0xdb, 0x0f, 0x00, 0x10,
+ 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 }
+ 0x9c, 0xc6, 0x0d, 0xd0,
+ 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 }
+ 0x9b, 0xb6, 0xc5, 0xad,
+ 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 }
+ 0xdd, 0x0f, 0x00, 0x70,
+ 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 }
+
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<32, false>::plt_entry[plt_entry_size] =
+{
+ 0xdc, 0x0f, 0x00, 0x10,
+ 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 }
+ 0xdb, 0x0f, 0x00, 0x10,
+ 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 }
+ 0x9c, 0xc6, 0x0d, 0xd0,
+ 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 }
+ 0x9b, 0xb6, 0xc5, 0xad,
+ 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 }
+ 0xdd, 0x0f, 0x00, 0x70,
+ 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 }
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<64, true>::plt_entry[plt_entry_size] =
+{
+ 0xdc, 0x0f, 0x00, 0x10,
+ 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 }
+ 0xdb, 0x0f, 0x00, 0x10,
+ 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 }
+ 0x9c, 0xc6, 0x0d, 0xd0,
+ 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 }
+ 0x9b, 0xb6, 0xc5, 0xad,
+ 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 }
+ 0xdd, 0x0f, 0x00, 0x70,
+ 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 }
+
+};
+
+template<>
+const unsigned char
+Output_data_plt_tilegx<32, true>::plt_entry[plt_entry_size] =
+{
+ 0xdc, 0x0f, 0x00, 0x10,
+ 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 }
+ 0xdb, 0x0f, 0x00, 0x10,
+ 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 }
+ 0x9c, 0xc6, 0x0d, 0xd0,
+ 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 }
+ 0x9b, 0xb6, 0xc5, 0xad,
+ 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 }
+ 0xdd, 0x0f, 0x00, 0x70,
+ 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 }
+};
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::fill_plt_entry(
+ unsigned char* pov,
+ typename elfcpp::Elf_types<size>::Elf_Addr gotplt_base,
+ unsigned int got_offset,
+ typename elfcpp::Elf_types<size>::Elf_Addr plt_base,
+ unsigned int plt_offset, unsigned int plt_index)
+{
+
+ const uint32_t TILEGX_IMM16_MASK = 0xFFFF;
+ const uint32_t TILEGX_X0_IMM16_BITOFF = 12;
+ const uint32_t TILEGX_X1_IMM16_BITOFF = 43;
+
+ typedef typename elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::Valtype
+ Valtype;
+ memcpy(pov, plt_entry, plt_entry_size);
+
+ // first bundle in plt stub - x0
+ Valtype* wv = reinterpret_cast<Valtype*>(pov);
+ Valtype val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv);
+ Valtype reloc =
+ ((gotplt_base + got_offset) - (plt_base + plt_offset + 8)) >> 16;
+ elfcpp::Elf_Xword dst_mask =
+ (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF;
+ val &= ~dst_mask;
+ reloc &= TILEGX_IMM16_MASK;
+ elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv,
+ val | (reloc<<TILEGX_X0_IMM16_BITOFF));
+
+ // second bundle in plt stub - x1
+ wv = reinterpret_cast<Valtype*>(pov + 8);
+ val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv);
+ reloc = (gotplt_base + got_offset) - (plt_base + plt_offset + 8);
+ dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF;
+ val &= ~dst_mask;
+ reloc &= TILEGX_IMM16_MASK;
+ elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv,
+ val | (reloc<<TILEGX_X1_IMM16_BITOFF));
+
+ // second bundle in plt stub - x0
+ wv = reinterpret_cast<Valtype*>(pov + 8);
+ val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv);
+ reloc = (gotplt_base - (plt_base + plt_offset + 8)) >> 16;
+ dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF;
+ val &= ~dst_mask;
+ reloc &= TILEGX_IMM16_MASK;
+ elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv,
+ val | (reloc<<TILEGX_X0_IMM16_BITOFF));
+
+ // third bundle in plt stub - x1
+ wv = reinterpret_cast<Valtype*>(pov + 16);
+ val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv);
+ reloc = gotplt_base - (plt_base + plt_offset + 8);
+ dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF;
+ val &= ~dst_mask;
+ reloc &= TILEGX_IMM16_MASK;
+ elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv,
+ val | (reloc<<TILEGX_X1_IMM16_BITOFF));
+
+ // fifth bundle in plt stub - carry plt_index x0
+ wv = reinterpret_cast<Valtype*>(pov + 32);
+ val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv);
+ dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF;
+ val &= ~dst_mask;
+ plt_index &= TILEGX_IMM16_MASK;
+ elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv,
+ val | (plt_index<<TILEGX_X0_IMM16_BITOFF));
+
+}
+
+// Write out the PLT. This uses the hand-coded instructions above.
+
+template<int size, bool big_endian>
+void
+Output_data_plt_tilegx<size, big_endian>::do_write(Output_file* of)
+{
+ const off_t offset = this->offset();
+ const section_size_type oview_size =
+ convert_to_section_size_type(this->data_size());
+ unsigned char* const oview = of->get_output_view(offset, oview_size);
+
+ const off_t got_file_offset = this->got_plt_->offset();
+ gold_assert(parameters->incremental_update()
+ || (got_file_offset + this->got_plt_->data_size()
+ == this->got_irelative_->offset()));
+ const section_size_type got_size =
+ convert_to_section_size_type(this->got_plt_->data_size()
+ + this->got_irelative_->data_size());
+ unsigned char* const got_view = of->get_output_view(got_file_offset,
+ got_size);
+
+ unsigned char* pov = oview;
+
+ // The base address of the .plt section.
+ typename elfcpp::Elf_types<size>::Elf_Addr plt_address = this->address();
+ typename elfcpp::Elf_types<size>::Elf_Addr got_address =
+ this->got_plt_->address();
+
+ this->fill_first_plt_entry(pov);
+ pov += this->get_plt_entry_size();
+
+ unsigned char* got_pov = got_view;
+
+ // first entry of .got.plt are set to -1
+ // second entry of .got.plt are set to 0
+ memset(got_pov, 0xff, size / 8);
+ got_pov += size / 8;
+ memset(got_pov, 0x0, size / 8);
+ got_pov += size / 8;
+
+ unsigned int plt_offset = this->get_plt_entry_size();
+ const unsigned int count = this->count_ + this->irelative_count_;
+ unsigned int got_offset = (size / 8) * TILEGX_GOTPLT_RESERVE_COUNT;
+ for (unsigned int plt_index = 0;
+ plt_index < count;
+ ++plt_index,
+ pov += this->get_plt_entry_size(),
+ got_pov += size / 8,
+ plt_offset += this->get_plt_entry_size(),
+ got_offset += size / 8)
+ {
+ // Set and adjust the PLT entry itself.
+ this->fill_plt_entry(pov, got_address, got_offset,
+ plt_address, plt_offset, plt_index);
+
+ // Initialize entry in .got.plt to plt start address
+ elfcpp::Swap<size, big_endian>::writeval(got_pov, plt_address);
+ }
+
+ gold_assert(static_cast<section_size_type>(pov - oview) == oview_size);
+ gold_assert(static_cast<section_size_type>(got_pov - got_view) == got_size);
+
+ of->write_output_view(offset, oview_size, oview);
+ of->write_output_view(got_file_offset, got_size, got_view);
+}
+
+// Create the PLT section.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::make_plt_section(Symbol_table* symtab,
+ Layout* layout)
+{
+ if (this->plt_ == NULL)
+ {
+ // Create the GOT sections first.
+ this->got_section(symtab, layout);
+
+ // Ensure that .rela.dyn always appears before .rela.plt,
+ // becuase on TILE-Gx, .rela.dyn needs to include .rela.plt
+ // in it's range.
+ this->rela_dyn_section(layout);
+
+ this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout,
+ TILEGX_INST_BUNDLE_SIZE, this->got_, this->got_plt_,
+ this->got_irelative_);
+
+ layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_EXECINSTR),
+ this->plt_, ORDER_NON_RELRO_FIRST,
+ false);
+
+ // Make the sh_info field of .rela.plt point to .plt.
+ Output_section* rela_plt_os = this->plt_->rela_plt()->output_section();
+ rela_plt_os->set_info_section(this->plt_->output_section());
+ }
+}
+
+// Create a PLT entry for a global symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::make_plt_entry(Symbol_table* symtab,
+ Layout* layout, Symbol* gsym)
+{
+ if (gsym->has_plt_offset())
+ return;
+
+ if (this->plt_ == NULL)
+ this->make_plt_section(symtab, layout);
+
+ this->plt_->add_entry(symtab, layout, gsym);
+}
+
+// Make a PLT entry for a local STT_GNU_IFUNC symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::make_local_ifunc_plt_entry(
+ Symbol_table* symtab, Layout* layout,
+ Sized_relobj_file<size, big_endian>* relobj,
+ unsigned int local_sym_index)
+{
+ if (relobj->local_has_plt_offset(local_sym_index))
+ return;
+ if (this->plt_ == NULL)
+ this->make_plt_section(symtab, layout);
+ unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout,
+ relobj,
+ local_sym_index);
+ relobj->set_local_plt_offset(local_sym_index, plt_offset);
+}
+
+// Return the number of entries in the PLT.
+
+template<int size, bool big_endian>
+unsigned int
+Target_tilegx<size, big_endian>::plt_entry_count() const
+{
+ if (this->plt_ == NULL)
+ return 0;
+ return this->plt_->entry_count();
+}
+
+// Return the offset of the first non-reserved PLT entry.
+
+template<int size, bool big_endian>
+unsigned int
+Target_tilegx<size, big_endian>::first_plt_entry_offset() const
+{
+ return this->plt_->first_plt_entry_offset();
+}
+
+// Return the size of each PLT entry.
+
+template<int size, bool big_endian>
+unsigned int
+Target_tilegx<size, big_endian>::plt_entry_size() const
+{
+ return this->plt_->get_plt_entry_size();
+}
+
+// Create the GOT and PLT sections for an incremental update.
+
+template<int size, bool big_endian>
+Output_data_got_base*
+Target_tilegx<size, big_endian>::init_got_plt_for_update(Symbol_table* symtab,
+ Layout* layout,
+ unsigned int got_count,
+ unsigned int plt_count)
+{
+ gold_assert(this->got_ == NULL);
+
+ this->got_ =
+ new Output_data_got<size, big_endian>((got_count
+ + TILEGX_GOT_RESERVE_COUNT)
+ * (size / 8));
+ layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_WRITE),
+ this->got_, ORDER_RELRO_LAST,
+ true);
+
+ // Define _GLOBAL_OFFSET_TABLE_ at the start of the GOT.
+ this->global_offset_table_ =
+ symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL,
+ Symbol_table::PREDEFINED,
+ this->got_,
+ 0, 0, elfcpp::STT_OBJECT,
+ elfcpp::STB_LOCAL,
+ elfcpp::STV_HIDDEN, 0,
+ false, false);
+
+ if (parameters->options().shared()) {
+ this->tilegx_dynamic_ =
+ symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL,
+ Symbol_table::PREDEFINED,
+ layout->dynamic_section(),
+ 0, 0, elfcpp::STT_OBJECT,
+ elfcpp::STB_LOCAL,
+ elfcpp::STV_HIDDEN, 0,
+ false, false);
+
+ this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD);
+ } else
+ this->got_->set_current_data_size(size / 8);
+
+ // Add the two reserved entries.
+ this->got_plt_
+ = new Output_data_space((plt_count + TILEGX_GOTPLT_RESERVE_COUNT)
+ * (size / 8), size / 8, "** GOT PLT");
+ layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS,
+ (elfcpp::SHF_ALLOC
+ | elfcpp::SHF_WRITE),
+ this->got_plt_, ORDER_NON_RELRO_FIRST,
+ false);
+
+ // If there are any IRELATIVE relocations, they get GOT entries in
+ // .got.plt after the jump slot.
+ this->got_irelative_
+ = new Output_data_space(0, size / 8, "** GOT IRELATIVE PLT");
+ layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS,
+ elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE,
+ this->got_irelative_,
+ ORDER_NON_RELRO_FIRST, false);
+
+ // Create the PLT section.
+ this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout,
+ this->plt_entry_size(), this->got_, this->got_plt_, this->got_irelative_,
+ plt_count);
+
+ layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS,
+ elfcpp::SHF_ALLOC | elfcpp::SHF_EXECINSTR,
+ this->plt_, ORDER_PLT, false);
+
+ // Make the sh_info field of .rela.plt point to .plt.
+ Output_section* rela_plt_os = this->plt_->rela_plt()->output_section();
+ rela_plt_os->set_info_section(this->plt_->output_section());
+
+ // Create the rela_dyn section.
+ this->rela_dyn_section(layout);
+
+ return this->got_;
+}
+
+// Reserve a GOT entry for a local symbol, and regenerate any
+// necessary dynamic relocations.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::reserve_local_got_entry(
+ unsigned int got_index,
+ Sized_relobj<size, big_endian>* obj,
+ unsigned int r_sym,
+ unsigned int got_type)
+{
+ unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT)
+ * (size / 8);
+ Reloc_section* rela_dyn = this->rela_dyn_section(NULL);
+
+ this->got_->reserve_local(got_index, obj, r_sym, got_type);
+ switch (got_type)
+ {
+ case GOT_TYPE_STANDARD:
+ if (parameters->options().output_is_position_independent())
+ rela_dyn->add_local_relative(obj, r_sym, elfcpp::R_TILEGX_RELATIVE,
+ this->got_, got_offset, 0, false);
+ break;
+ case GOT_TYPE_TLS_OFFSET:
+ rela_dyn->add_local(obj, r_sym,
+ size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32
+ : elfcpp::R_TILEGX_TLS_DTPOFF64,
+ this->got_, got_offset, 0);
+ break;
+ case GOT_TYPE_TLS_PAIR:
+ this->got_->reserve_slot(got_index + 1);
+ rela_dyn->add_local(obj, r_sym,
+ size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32
+ : elfcpp::R_TILEGX_TLS_DTPMOD64,
+ this->got_, got_offset, 0);
+ break;
+ case GOT_TYPE_TLS_DESC:
+ gold_fatal(_("TLS_DESC not yet supported for incremental linking"));
+ break;
+ default:
+ gold_unreachable();
+ }
+}
+
+// Reserve a GOT entry for a global symbol, and regenerate any
+// necessary dynamic relocations.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::reserve_global_got_entry(
+ unsigned int got_index, Symbol* gsym, unsigned int got_type)
+{
+ unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT)
+ * (size / 8);
+ Reloc_section* rela_dyn = this->rela_dyn_section(NULL);
+
+ this->got_->reserve_global(got_index, gsym, got_type);
+ switch (got_type)
+ {
+ case GOT_TYPE_STANDARD:
+ if (!gsym->final_value_is_known())
+ {
+ if (gsym->is_from_dynobj()
+ || gsym->is_undefined()
+ || gsym->is_preemptible()
+ || gsym->type() == elfcpp::STT_GNU_IFUNC)
+ rela_dyn->add_global(gsym, elfcpp::R_TILEGX_GLOB_DAT,
+ this->got_, got_offset, 0);
+ else
+ rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE,
+ this->got_, got_offset, 0, false);
+ }
+ break;
+ case GOT_TYPE_TLS_OFFSET:
+ rela_dyn->add_global_relative(gsym,
+ size == 32 ? elfcpp::R_TILEGX_TLS_TPOFF32
+ : elfcpp::R_TILEGX_TLS_TPOFF64,
+ this->got_, got_offset, 0, false);
+ break;
+ case GOT_TYPE_TLS_PAIR:
+ this->got_->reserve_slot(got_index + 1);
+ rela_dyn->add_global_relative(gsym,
+ size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32
+ : elfcpp::R_TILEGX_TLS_DTPMOD64,
+ this->got_, got_offset, 0, false);
+ rela_dyn->add_global_relative(gsym,
+ size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32
+ : elfcpp::R_TILEGX_TLS_DTPOFF64,
+ this->got_, got_offset + size / 8,
+ 0, false);
+ break;
+ case GOT_TYPE_TLS_DESC:
+ gold_fatal(_("TLS_DESC not yet supported for TILEGX"));
+ break;
+ default:
+ gold_unreachable();
+ }
+}
+
+// Register an existing PLT entry for a global symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::register_global_plt_entry(
+ Symbol_table* symtab, Layout* layout, unsigned int plt_index, Symbol* gsym)
+{
+ gold_assert(this->plt_ != NULL);
+ gold_assert(!gsym->has_plt_offset());
+
+ this->plt_->reserve_slot(plt_index);
+
+ gsym->set_plt_offset((plt_index + 1) * this->plt_entry_size());
+
+ unsigned int got_offset = (plt_index + 2) * (size / 8);
+ this->plt_->add_relocation(symtab, layout, gsym, got_offset);
+}
+
+// Force a COPY relocation for a given symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::emit_copy_reloc(
+ Symbol_table* symtab, Symbol* sym, Output_section* os, off_t offset)
+{
+ this->copy_relocs_.emit_copy_reloc(symtab,
+ symtab->get_sized_symbol<size>(sym),
+ os,
+ offset,
+ this->rela_dyn_section(NULL));
+}
+
+// Create a GOT entry for the TLS module index.
+
+template<int size, bool big_endian>
+unsigned int
+Target_tilegx<size, big_endian>::got_mod_index_entry(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object)
+{
+ if (this->got_mod_index_offset_ == -1U)
+ {
+ gold_assert(symtab != NULL && layout != NULL && object != NULL);
+ Reloc_section* rela_dyn = this->rela_dyn_section(layout);
+ Output_data_got<size, big_endian>* got
+ = this->got_section(symtab, layout);
+ unsigned int got_offset = got->add_constant(0);
+ rela_dyn->add_local(object, 0,
+ size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32
+ : elfcpp::R_TILEGX_TLS_DTPMOD64, got,
+ got_offset, 0);
+ got->add_constant(0);
+ this->got_mod_index_offset_ = got_offset;
+ }
+ return this->got_mod_index_offset_;
+}
+
+// Optimize the TLS relocation type based on what we know about the
+// symbol. IS_FINAL is true if the final address of this symbol is
+// known at link time.
+//
+// the transformation rules is described below:
+//
+// compiler GD reference
+// |
+// V
+// moveli tmp, hw1_last_tls_gd(x) X0/X1
+// shl16insli r0, tmp, hw0_tls_gd(x) X0/X1
+// addi r0, got, tls_add(x) Y0/Y1/X0/X1
+// jal tls_gd_call(x) X1
+// addi adr, r0, tls_gd_add(x) Y0/Y1/X0/X1
+//
+// linker tranformation of GD insn sequence
+// |
+// V
+// ==> GD:
+// moveli tmp, hw1_last_tls_gd(x) X0/X1
+// shl16insli r0, tmp, hw0_tls_gd(x) X0/X1
+// add r0, got, r0 Y0/Y1/X0/X1
+// jal plt(__tls_get_addr) X1
+// move adr, r0 Y0/Y1/X0/X1
+// ==> IE:
+// moveli tmp, hw1_last_tls_ie(x) X0/X1
+// shl16insli r0, tmp, hw0_tls_ie(x) X0/X1
+// add r0, got, r0 Y0/Y1/X0/X1
+// ld r0, r0 X1
+// add adr, r0, tp Y0/Y1/X0/X1
+// ==> LE:
+// moveli tmp, hw1_last_tls_le(x) X0/X1
+// shl16insli r0, tmp, hw0_tls_le(x) X0/X1
+// move r0, r0 Y0/Y1/X0/X1
+// move r0, r0 Y0/Y1/X0/X1
+// add adr, r0, tp Y0/Y1/X0/X1
+//
+//
+// compiler IE reference
+// |
+// V
+// moveli tmp, hw1_last_tls_ie(x) X0/X1
+// shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1
+// addi tmp, got, tls_add(x) Y0/Y1/X0/X1
+// ld_tls tmp, tmp, tls_ie_load(x) X1
+// add adr, tmp, tp Y0/Y1/X0/X1
+//
+// linker transformation for IE insn sequence
+// |
+// V
+// ==> IE:
+// moveli tmp, hw1_last_tls_ie(x) X0/X1
+// shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1
+// add tmp, got, tmp Y0/Y1/X0/X1
+// ld tmp, tmp X1
+// add adr, tmp, tp Y0/Y1/X0/X1
+// ==> LE:
+// moveli tmp, hw1_last_tls_le(x) X0/X1
+// shl16insli tmp, tmp, hw0_tls_le(x) X0/X1
+// move tmp, tmp Y0/Y1/X0/X1
+// move tmp, tmp Y0/Y1/X0/X1
+//
+//
+// compiler LE reference
+// |
+// V
+// moveli tmp, hw1_last_tls_le(x) X0/X1
+// shl16insli tmp, tmp, hw0_tls_le(x) X0/X1
+// add adr, tmp, tp Y0/Y1/X0/X1
+
+template<int size, bool big_endian>
+tls::Tls_optimization
+Target_tilegx<size, big_endian>::optimize_tls_reloc(bool is_final, int r_type)
+{
+ // If we are generating a shared library, then we can't do anything
+ // in the linker.
+ if (parameters->options().shared())
+ return tls::TLSOPT_NONE;
+
+ switch (r_type)
+ {
+ // unique GD relocations
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ // These are General-Dynamic which permits fully general TLS
+ // access. Since we know that we are generating an executable,
+ // we can convert this to Initial-Exec. If we also know that
+ // this is a local symbol, we can further switch to Local-Exec.
+ if (is_final)
+ return tls::TLSOPT_TO_LE;
+ return tls::TLSOPT_TO_IE;
+
+ // unique IE relocations
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ // These are Initial-Exec relocs which get the thread offset
+ // from the GOT. If we know that we are linking against the
+ // local symbol, we can switch to Local-Exec, which links the
+ // thread offset into the instruction.
+ if (is_final)
+ return tls::TLSOPT_TO_LE;
+ return tls::TLSOPT_NONE;
+
+ // could be created for both GD and IE
+ // but they are expanded into the same
+ // instruction in GD and IE.
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ if (is_final)
+ return tls::TLSOPT_TO_LE;
+ return tls::TLSOPT_NONE;
+
+ // unique LE relocations
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ // When we already have Local-Exec, there is nothing further we
+ // can do.
+ return tls::TLSOPT_NONE;
+
+ default:
+ gold_unreachable();
+ }
+}
+
+// Get the Reference_flags for a particular relocation.
+
+template<int size, bool big_endian>
+int
+Target_tilegx<size, big_endian>::Scan::get_reference_flags(unsigned int r_type)
+{
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_NONE:
+ case elfcpp::R_TILEGX_GNU_VTINHERIT:
+ case elfcpp::R_TILEGX_GNU_VTENTRY:
+ // No symbol reference.
+ return 0;
+
+ case elfcpp::R_TILEGX_64:
+ case elfcpp::R_TILEGX_32:
+ case elfcpp::R_TILEGX_16:
+ case elfcpp::R_TILEGX_8:
+ return Symbol::ABSOLUTE_REF;
+
+ case elfcpp::R_TILEGX_BROFF_X1:
+ case elfcpp::R_TILEGX_64_PCREL:
+ case elfcpp::R_TILEGX_32_PCREL:
+ case elfcpp::R_TILEGX_16_PCREL:
+ case elfcpp::R_TILEGX_8_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ return Symbol::RELATIVE_REF;
+
+ case elfcpp::R_TILEGX_JUMPOFF_X1:
+ case elfcpp::R_TILEGX_JUMPOFF_X1_PLT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
+ return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ return Symbol::ABSOLUTE_REF;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ // Absolute in GOT.
+ return Symbol::ABSOLUTE_REF;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_TLS_DTPOFF64:
+ case elfcpp::R_TILEGX_TLS_DTPMOD32:
+ case elfcpp::R_TILEGX_TLS_DTPOFF32:
+ case elfcpp::R_TILEGX_TLS_TPOFF32:
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ return Symbol::TLS_REF;
+
+ case elfcpp::R_TILEGX_COPY:
+ case elfcpp::R_TILEGX_GLOB_DAT:
+ case elfcpp::R_TILEGX_JMP_SLOT:
+ case elfcpp::R_TILEGX_RELATIVE:
+ case elfcpp::R_TILEGX_TLS_TPOFF64:
+ case elfcpp::R_TILEGX_TLS_DTPMOD64:
+ default:
+ // Not expected. We will give an error later.
+ return 0;
+ }
+}
+
+// Report an unsupported relocation against a local symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::Scan::unsupported_reloc_local(
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int r_type)
+{
+ gold_error(_("%s: unsupported reloc %u against local symbol"),
+ object->name().c_str(), r_type);
+}
+
+// We are about to emit a dynamic relocation of type R_TYPE. If the
+// dynamic linker does not support it, issue an error.
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::Scan::check_non_pic(Relobj* object,
+ unsigned int r_type)
+{
+ switch (r_type)
+ {
+ // These are the relocation types supported by glibc for tilegx
+ // which should always work.
+ case elfcpp::R_TILEGX_RELATIVE:
+ case elfcpp::R_TILEGX_GLOB_DAT:
+ case elfcpp::R_TILEGX_JMP_SLOT:
+ case elfcpp::R_TILEGX_TLS_DTPMOD64:
+ case elfcpp::R_TILEGX_TLS_DTPOFF64:
+ case elfcpp::R_TILEGX_TLS_TPOFF64:
+ case elfcpp::R_TILEGX_8:
+ case elfcpp::R_TILEGX_16:
+ case elfcpp::R_TILEGX_32:
+ case elfcpp::R_TILEGX_64:
+ case elfcpp::R_TILEGX_COPY:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ case elfcpp::R_TILEGX_BROFF_X1:
+ case elfcpp::R_TILEGX_JUMPOFF_X1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ return;
+
+ default:
+ // This prevents us from issuing more than one error per reloc
+ // section. But we can still wind up issuing more than one
+ // error per object file.
+ if (this->issued_non_pic_error_)
+ return;
+ gold_assert(parameters->options().output_is_position_independent());
+ object->error(_("requires unsupported dynamic reloc %u; "
+ "recompile with -fPIC"),
+ r_type);
+ this->issued_non_pic_error_ = true;
+ return;
+
+ case elfcpp::R_TILEGX_NONE:
+ gold_unreachable();
+ }
+}
+
+// Return whether we need to make a PLT entry for a relocation of the
+// given type against a STT_GNU_IFUNC symbol.
+
+template<int size, bool big_endian>
+bool
+Target_tilegx<size, big_endian>::Scan::reloc_needs_plt_for_ifunc(
+ Sized_relobj_file<size, big_endian>* object, unsigned int r_type)
+{
+ int flags = Scan::get_reference_flags(r_type);
+ if (flags & Symbol::TLS_REF)
+ gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"),
+ object->name().c_str(), r_type);
+ return flags != 0;
+}
+
+// Scan a relocation for a local symbol.
+
+template<int size, bool big_endian>
+inline void
+Target_tilegx<size, big_endian>::Scan::local(Symbol_table* symtab,
+ Layout* layout,
+ Target_tilegx<size, big_endian>* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc,
+ unsigned int r_type,
+ const elfcpp::Sym<size, big_endian>& lsym,
+ bool is_discarded)
+{
+ if (is_discarded)
+ return;
+
+ // A local STT_GNU_IFUNC symbol may require a PLT entry.
+ bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC;
+ if (is_ifunc && this->reloc_needs_plt_for_ifunc(object, r_type))
+ {
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym);
+ }
+
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_NONE:
+ case elfcpp::R_TILEGX_GNU_VTINHERIT:
+ case elfcpp::R_TILEGX_GNU_VTENTRY:
+ break;
+
+ // If building a shared library (or a position-independent
+ // executable), because the runtime address needs plus
+ // the module base address, so generate a R_TILEGX_RELATIVE.
+ case elfcpp::R_TILEGX_32:
+ case elfcpp::R_TILEGX_64:
+ if (parameters->options().output_is_position_independent())
+ {
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_local_relative(object, r_sym,
+ elfcpp::R_TILEGX_RELATIVE,
+ output_section, data_shndx,
+ reloc.get_r_offset(),
+ reloc.get_r_addend(), is_ifunc);
+ }
+ break;
+
+ // If building a shared library (or a position-independent
+ // executable), we need to create a dynamic relocation for this
+ // location.
+ case elfcpp::R_TILEGX_8:
+ case elfcpp::R_TILEGX_16:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ if (parameters->options().output_is_position_independent())
+ {
+ this->check_non_pic(object, r_type);
+
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ if (lsym.get_st_type() != elfcpp::STT_SECTION)
+ rela_dyn->add_local(object, r_sym, r_type, output_section,
+ data_shndx, reloc.get_r_offset(),
+ reloc.get_r_addend());
+ else
+ {
+ gold_assert(lsym.get_st_value() == 0);
+ rela_dyn->add_symbolless_local_addend(object, r_sym, r_type,
+ output_section,
+ data_shndx,
+ reloc.get_r_offset(),
+ reloc.get_r_addend());
+
+ }
+ }
+ break;
+
+ // R_TILEGX_JUMPOFF_X1_PLT against local symbol
+ // may happen for ifunc case.
+ case elfcpp::R_TILEGX_JUMPOFF_X1_PLT:
+ case elfcpp::R_TILEGX_JUMPOFF_X1:
+ case elfcpp::R_TILEGX_64_PCREL:
+ case elfcpp::R_TILEGX_32_PCREL:
+ case elfcpp::R_TILEGX_16_PCREL:
+ case elfcpp::R_TILEGX_8_PCREL:
+ case elfcpp::R_TILEGX_BROFF_X1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
+ break;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ {
+ // The symbol requires a GOT entry.
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+
+ // For a STT_GNU_IFUNC symbol we want the PLT offset. That
+ // lets function pointers compare correctly with shared
+ // libraries. Otherwise we would need an IRELATIVE reloc.
+ bool is_new;
+ if (is_ifunc)
+ is_new = got->add_local_plt(object, r_sym, GOT_TYPE_STANDARD);
+ else
+ is_new = got->add_local(object, r_sym, GOT_TYPE_STANDARD);
+ if (is_new)
+ {
+ // tilegx dynamic linker will not update local got entry,
+ // so, if we are generating a shared object, we need to add a
+ // dynamic relocation for this symbol's GOT entry to inform
+ // dynamic linker plus the load base explictly.
+ if (parameters->options().output_is_position_independent())
+ {
+ unsigned int got_offset
+ = object->local_got_offset(r_sym, GOT_TYPE_STANDARD);
+
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_local_relative(object, r_sym,
+ r_type,
+ got, got_offset, 0, is_ifunc);
+ }
+ }
+ }
+ break;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ {
+ bool output_is_shared = parameters->options().shared();
+ const tls::Tls_optimization opt_t =
+ Target_tilegx<size, big_endian>::optimize_tls_reloc(
+ !output_is_shared, r_type);
+
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ // FIXME: predefine __tls_get_addr
+ //
+ // R_TILEGX_TLS_GD_CALL implicitly reference __tls_get_addr,
+ // while all other target, x86/arm/mips/powerpc/sparc
+ // generate tls relocation against __tls_get_addr explictly,
+ // so for TILEGX, we need the following hack.
+ if (opt_t == tls::TLSOPT_NONE) {
+ if (!target->tls_get_addr_sym_defined_) {
+ Symbol* sym = NULL;
+ options::parse_set(NULL, "__tls_get_addr",
+ (gold::options::String_set*)
+ &parameters->options().undefined());
+ symtab->add_undefined_symbols_from_command_line(layout);
+ target->tls_get_addr_sym_defined_ = true;
+ sym = symtab->lookup("__tls_get_addr");
+ sym->set_in_reg();
+ }
+ target->make_plt_entry(symtab, layout,
+ symtab->lookup("__tls_get_addr"));
+ }
+ break;
+
+ // only make effect when applying relocation
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ break;
+
+ // GD: requires two GOT entry for module index and offset
+ // IE: requires one GOT entry for tp-relative offset
+ // LE: shouldn't happen for global symbol
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ {
+ if (opt_t == tls::TLSOPT_NONE) {
+ Output_data_got<size, big_endian> *got
+ = target->got_section(symtab, layout);
+ unsigned int r_sym
+ = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ unsigned int shndx = lsym.get_st_shndx();
+ bool is_ordinary;
+ shndx = object->adjust_sym_shndx(r_sym, shndx,
+ &is_ordinary);
+ if (!is_ordinary)
+ object->error(_("local symbol %u has bad shndx %u"),
+ r_sym, shndx);
+ else
+ got->add_local_pair_with_rel(object, r_sym, shndx,
+ GOT_TYPE_TLS_PAIR,
+ target->rela_dyn_section(layout),
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_DTPMOD32
+ : elfcpp::R_TILEGX_TLS_DTPMOD64);
+ } else if (opt_t == tls::TLSOPT_TO_IE) {
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ Reloc_section* rela_dyn
+ = target->rela_dyn_section(layout);
+ unsigned int r_sym
+ = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ unsigned int off = got->add_constant(0);
+ object->set_local_got_offset(r_sym,
+ GOT_TYPE_TLS_OFFSET,off);
+ rela_dyn->add_symbolless_local_addend(object, r_sym,
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_TPOFF32
+ : elfcpp::R_TILEGX_TLS_TPOFF64,
+ got, off, 0);
+ } else if (opt_t != tls::TLSOPT_TO_LE)
+ // only TO_LE is allowed for local symbol
+ unsupported_reloc_local(object, r_type);
+ }
+ break;
+
+ // IE
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ {
+ layout->set_has_static_tls();
+ if (opt_t == tls::TLSOPT_NONE) {
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ Reloc_section* rela_dyn
+ = target->rela_dyn_section(layout);
+ unsigned int r_sym
+ = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ unsigned int off = got->add_constant(0);
+ object->set_local_got_offset(r_sym,
+ GOT_TYPE_TLS_OFFSET, off);
+ rela_dyn->add_symbolless_local_addend(object, r_sym,
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_TPOFF32
+ : elfcpp::R_TILEGX_TLS_TPOFF64,
+ got, off, 0);
+ } else if (opt_t != tls::TLSOPT_TO_LE)
+ unsupported_reloc_local(object, r_type);
+ }
+ break;
+
+ // LE
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ layout->set_has_static_tls();
+ if (parameters->options().shared()) {
+ // defer to dynamic linker
+ gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION);
+ unsigned int r_sym
+ = elfcpp::elf_r_sym<size>(reloc.get_r_info());
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_symbolless_local_addend(object, r_sym, r_type,
+ output_section, data_shndx,
+ reloc.get_r_offset(), 0);
+ }
+ break;
+
+ default:
+ gold_unreachable();
+ }
+ }
+ break;
+
+ case elfcpp::R_TILEGX_COPY:
+ case elfcpp::R_TILEGX_GLOB_DAT:
+ case elfcpp::R_TILEGX_JMP_SLOT:
+ case elfcpp::R_TILEGX_RELATIVE:
+ // These are outstanding tls relocs, which are unexpected when linking
+ case elfcpp::R_TILEGX_TLS_TPOFF32:
+ case elfcpp::R_TILEGX_TLS_TPOFF64:
+ case elfcpp::R_TILEGX_TLS_DTPMOD32:
+ case elfcpp::R_TILEGX_TLS_DTPMOD64:
+ case elfcpp::R_TILEGX_TLS_DTPOFF32:
+ case elfcpp::R_TILEGX_TLS_DTPOFF64:
+ gold_error(_("%s: unexpected reloc %u in object file"),
+ object->name().c_str(), r_type);
+ break;
+
+ default:
+ gold_error(_("%s: unsupported reloc %u against local symbol"),
+ object->name().c_str(), r_type);
+ break;
+ }
+}
+
+
+// Report an unsupported relocation against a global symbol.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::Scan::unsupported_reloc_global(
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int r_type,
+ Symbol* gsym)
+{
+ gold_error(_("%s: unsupported reloc %u against global symbol %s"),
+ object->name().c_str(), r_type, gsym->demangled_name().c_str());
+}
+
+// Returns true if this relocation type could be that of a function pointer.
+template<int size, bool big_endian>
+inline bool
+Target_tilegx<size, big_endian>::Scan::possible_function_pointer_reloc(
+ unsigned int r_type)
+{
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ {
+ return true;
+ }
+ }
+ return false;
+}
+
+// For safe ICF, scan a relocation for a local symbol to check if it
+// corresponds to a function pointer being taken. In that case mark
+// the function whose pointer was taken as not foldable.
+
+template<int size, bool big_endian>
+inline bool
+Target_tilegx<size, big_endian>::Scan::local_reloc_may_be_function_pointer(
+ Symbol_table* ,
+ Layout* ,
+ Target_tilegx<size, big_endian>* ,
+ Sized_relobj_file<size, big_endian>* ,
+ unsigned int ,
+ Output_section* ,
+ const elfcpp::Rela<size, big_endian>& ,
+ unsigned int r_type,
+ const elfcpp::Sym<size, big_endian>&)
+{
+ return possible_function_pointer_reloc(r_type);
+}
+
+// For safe ICF, scan a relocation for a global symbol to check if it
+// corresponds to a function pointer being taken. In that case mark
+// the function whose pointer was taken as not foldable.
+
+template<int size, bool big_endian>
+inline bool
+Target_tilegx<size, big_endian>::Scan::global_reloc_may_be_function_pointer(
+ Symbol_table*,
+ Layout* ,
+ Target_tilegx<size, big_endian>* ,
+ Sized_relobj_file<size, big_endian>* ,
+ unsigned int ,
+ Output_section* ,
+ const elfcpp::Rela<size, big_endian>& ,
+ unsigned int r_type,
+ Symbol* gsym)
+{
+ // GOT is not a function.
+ if (strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
+ return false;
+
+ // When building a shared library, do not fold symbols whose visibility
+ // is hidden, internal or protected.
+ return ((parameters->options().shared()
+ && (gsym->visibility() == elfcpp::STV_INTERNAL
+ || gsym->visibility() == elfcpp::STV_PROTECTED
+ || gsym->visibility() == elfcpp::STV_HIDDEN))
+ || possible_function_pointer_reloc(r_type));
+}
+
+// Scan a relocation for a global symbol.
+
+template<int size, bool big_endian>
+inline void
+Target_tilegx<size, big_endian>::Scan::global(Symbol_table* symtab,
+ Layout* layout,
+ Target_tilegx<size, big_endian>* target,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ Output_section* output_section,
+ const elfcpp::Rela<size, big_endian>& reloc,
+ unsigned int r_type,
+ Symbol* gsym)
+{
+ // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got
+ // section. We check here to avoid creating a dynamic reloc against
+ // _GLOBAL_OFFSET_TABLE_.
+ if (!target->has_got_section()
+ && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
+ target->got_section(symtab, layout);
+
+ // A STT_GNU_IFUNC symbol may require a PLT entry.
+ if (gsym->type() == elfcpp::STT_GNU_IFUNC
+ && this->reloc_needs_plt_for_ifunc(object, r_type))
+ target->make_plt_entry(symtab, layout, gsym);
+
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_NONE:
+ case elfcpp::R_TILEGX_GNU_VTINHERIT:
+ case elfcpp::R_TILEGX_GNU_VTENTRY:
+ break;
+
+ case elfcpp::R_TILEGX_DEST_IMM8_X1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ case elfcpp::R_TILEGX_64:
+ case elfcpp::R_TILEGX_32:
+ case elfcpp::R_TILEGX_16:
+ case elfcpp::R_TILEGX_8:
+ {
+ // Make a PLT entry if necessary.
+ if (gsym->needs_plt_entry())
+ {
+ target->make_plt_entry(symtab, layout, gsym);
+ // Since this is not a PC-relative relocation, we may be
+ // taking the address of a function. In that case we need to
+ // set the entry in the dynamic symbol table to the address of
+ // the PLT entry.
+ if (gsym->is_from_dynobj() && !parameters->options().shared())
+ gsym->set_needs_dynsym_value();
+ }
+ // Make a dynamic relocation if necessary.
+ if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
+ {
+ if (gsym->may_need_copy_reloc())
+ {
+ target->copy_reloc(symtab, layout, object,
+ data_shndx, output_section, gsym, reloc);
+ }
+ else if (((size == 64 && r_type == elfcpp::R_TILEGX_64)
+ || (size == 32 && r_type == elfcpp::R_TILEGX_32))
+ && gsym->type() == elfcpp::STT_GNU_IFUNC
+ && gsym->can_use_relative_reloc(false)
+ && !gsym->is_from_dynobj()
+ && !gsym->is_undefined()
+ && !gsym->is_preemptible())
+ {
+ // Use an IRELATIVE reloc for a locally defined
+ // STT_GNU_IFUNC symbol. This makes a function
+ // address in a PIE executable match the address in a
+ // shared library that it links against.
+ Reloc_section* rela_dyn =
+ target->rela_irelative_section(layout);
+ unsigned int r_type = elfcpp::R_TILEGX_IRELATIVE;
+ rela_dyn->add_symbolless_global_addend(gsym, r_type,
+ output_section, object,
+ data_shndx,
+ reloc.get_r_offset(),
+ reloc.get_r_addend());
+ } else if ((r_type == elfcpp::R_TILEGX_64
+ || r_type == elfcpp::R_TILEGX_32)
+ && gsym->can_use_relative_reloc(false))
+ {
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE,
+ output_section, object,
+ data_shndx,
+ reloc.get_r_offset(),
+ reloc.get_r_addend(), false);
+ }
+ else
+ {
+ this->check_non_pic(object, r_type);
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_global(gsym, r_type, output_section, object,
+ data_shndx, reloc.get_r_offset(),
+ reloc.get_r_addend());
+ }
+ }
+ }
+ break;
+
+ case elfcpp::R_TILEGX_BROFF_X1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_64_PCREL:
+ case elfcpp::R_TILEGX_32_PCREL:
+ case elfcpp::R_TILEGX_16_PCREL:
+ case elfcpp::R_TILEGX_8_PCREL:
+ {
+ // Make a PLT entry if necessary.
+ if (gsym->needs_plt_entry())
+ target->make_plt_entry(symtab, layout, gsym);
+ // Make a dynamic relocation if necessary.
+ if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
+ {
+ if (gsym->may_need_copy_reloc())
+ {
+ target->copy_reloc(symtab, layout, object,
+ data_shndx, output_section, gsym, reloc);
+ }
+ else
+ {
+ this->check_non_pic(object, r_type);
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_global(gsym, r_type, output_section, object,
+ data_shndx, reloc.get_r_offset(),
+ reloc.get_r_addend());
+ }
+ }
+ }
+ break;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ {
+ // The symbol requires a GOT entry.
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ if (gsym->final_value_is_known())
+ {
+ // For a STT_GNU_IFUNC symbol we want the PLT address.
+ if (gsym->type() == elfcpp::STT_GNU_IFUNC)
+ got->add_global_plt(gsym, GOT_TYPE_STANDARD);
+ else
+ got->add_global(gsym, GOT_TYPE_STANDARD);
+ }
+ else
+ {
+ // If this symbol is not fully resolved, we need to add a
+ // dynamic relocation for it.
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+
+ // Use a GLOB_DAT rather than a RELATIVE reloc if:
+ //
+ // 1) The symbol may be defined in some other module.
+ //
+ // 2) We are building a shared library and this is a
+ // protected symbol; using GLOB_DAT means that the dynamic
+ // linker can use the address of the PLT in the main
+ // executable when appropriate so that function address
+ // comparisons work.
+ //
+ // 3) This is a STT_GNU_IFUNC symbol in position dependent
+ // code, again so that function address comparisons work.
+ if (gsym->is_from_dynobj()
+ || gsym->is_undefined()
+ || gsym->is_preemptible()
+ || (gsym->visibility() == elfcpp::STV_PROTECTED
+ && parameters->options().shared())
+ || (gsym->type() == elfcpp::STT_GNU_IFUNC
+ && parameters->options().output_is_position_independent()))
+ got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn,
+ elfcpp::R_TILEGX_GLOB_DAT);
+ else
+ {
+ // For a STT_GNU_IFUNC symbol we want to write the PLT
+ // offset into the GOT, so that function pointer
+ // comparisons work correctly.
+ bool is_new;
+ if (gsym->type() != elfcpp::STT_GNU_IFUNC)
+ is_new = got->add_global(gsym, GOT_TYPE_STANDARD);
+ else
+ {
+ is_new = got->add_global_plt(gsym, GOT_TYPE_STANDARD);
+ // Tell the dynamic linker to use the PLT address
+ // when resolving relocations.
+ if (gsym->is_from_dynobj()
+ && !parameters->options().shared())
+ gsym->set_needs_dynsym_value();
+ }
+ if (is_new)
+ {
+ unsigned int got_off = gsym->got_offset(GOT_TYPE_STANDARD);
+ rela_dyn->add_global_relative(gsym,
+ r_type,
+ got, got_off, 0, false);
+ }
+ }
+ }
+ }
+ break;
+
+ // a minor difference here for R_TILEGX_JUMPOFF_X1
+ // between bfd linker and gold linker for gold, when
+ // R_TILEGX_JUMPOFF_X1 against global symbol, we
+ // turn it into JUMPOFF_X1_PLT, otherwise the distance
+ // to the symbol function may overflow at runtime.
+ case elfcpp::R_TILEGX_JUMPOFF_X1:
+
+ case elfcpp::R_TILEGX_JUMPOFF_X1_PLT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
+ // If the symbol is fully resolved, this is just a PC32 reloc.
+ // Otherwise we need a PLT entry.
+ if (gsym->final_value_is_known())
+ break;
+ // If building a shared library, we can also skip the PLT entry
+ // if the symbol is defined in the output file and is protected
+ // or hidden.
+ if (gsym->is_defined()
+ && !gsym->is_from_dynobj()
+ && !gsym->is_preemptible())
+ break;
+ target->make_plt_entry(symtab, layout, gsym);
+ break;
+
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ {
+ const bool is_final = gsym->final_value_is_known();
+ const tls::Tls_optimization opt_t =
+ Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final,
+ r_type);
+
+ switch (r_type)
+ {
+ // only expand to plt against __tls_get_addr in GD model
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ if (opt_t == tls::TLSOPT_NONE) {
+ // FIXME: it's better '__tls_get_addr' referenced explictly
+ if (!target->tls_get_addr_sym_defined_) {
+ Symbol* sym = NULL;
+ options::parse_set(NULL, "__tls_get_addr",
+ (gold::options::String_set*)
+ &parameters->options().undefined());
+ symtab->add_undefined_symbols_from_command_line(layout);
+ target->tls_get_addr_sym_defined_ = true;
+ sym = symtab->lookup("__tls_get_addr");
+ sym->set_in_reg();
+ }
+ target->make_plt_entry(symtab, layout,
+ symtab->lookup("__tls_get_addr"));
+ }
+ break;
+
+ // only make effect when applying relocation
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ break;
+
+ // GD: requires two GOT entry for module index and offset
+ // IE: requires one GOT entry for tp-relative offset
+ // LE: shouldn't happen for global symbol
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ {
+ if (opt_t == tls::TLSOPT_NONE) {
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR,
+ target->rela_dyn_section(layout),
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_DTPMOD32
+ : elfcpp::R_TILEGX_TLS_DTPMOD64,
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_DTPOFF32
+ : elfcpp::R_TILEGX_TLS_DTPOFF64);
+ } else if (opt_t == tls::TLSOPT_TO_IE) {
+ // Create a GOT entry for the tp-relative offset.
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
+ target->rela_dyn_section(layout),
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_TPOFF32
+ : elfcpp::R_TILEGX_TLS_TPOFF64);
+ } else if (opt_t != tls::TLSOPT_TO_LE)
+ // exteranl symbol should not be optimized to TO_LE
+ unsupported_reloc_global(object, r_type, gsym);
+ }
+ break;
+
+ // IE
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ {
+ layout->set_has_static_tls();
+ if (opt_t == tls::TLSOPT_NONE) {
+ // Create a GOT entry for the tp-relative offset.
+ Output_data_got<size, big_endian>* got
+ = target->got_section(symtab, layout);
+ got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
+ target->rela_dyn_section(layout),
+ size == 32
+ ? elfcpp::R_TILEGX_TLS_TPOFF32
+ : elfcpp::R_TILEGX_TLS_TPOFF64);
+ } else if (opt_t != tls::TLSOPT_TO_LE)
+ unsupported_reloc_global(object, r_type, gsym);
+ }
+ break;
+
+ // LE
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ layout->set_has_static_tls();
+ if (parameters->options().shared()) {
+ // defer to dynamic linker
+ Reloc_section* rela_dyn = target->rela_dyn_section(layout);
+ rela_dyn->add_symbolless_global_addend(gsym, r_type,
+ output_section, object,
+ data_shndx,
+ reloc.get_r_offset(), 0);
+ }
+ break;
+
+ default:
+ gold_unreachable();
+ }
+ }
+ break;
+
+ // below are outstanding relocs
+ // should not existed in static linking stage
+ case elfcpp::R_TILEGX_COPY:
+ case elfcpp::R_TILEGX_GLOB_DAT:
+ case elfcpp::R_TILEGX_JMP_SLOT:
+ case elfcpp::R_TILEGX_RELATIVE:
+ case elfcpp::R_TILEGX_TLS_TPOFF32:
+ case elfcpp::R_TILEGX_TLS_TPOFF64:
+ case elfcpp::R_TILEGX_TLS_DTPMOD32:
+ case elfcpp::R_TILEGX_TLS_DTPMOD64:
+ case elfcpp::R_TILEGX_TLS_DTPOFF32:
+ case elfcpp::R_TILEGX_TLS_DTPOFF64:
+ gold_error(_("%s: unexpected reloc %u in object file"),
+ object->name().c_str(), r_type);
+ break;
+
+ default:
+ gold_error(_("%s: unsupported reloc %u against global symbol %s"),
+ object->name().c_str(), r_type,
+ gsym->demangled_name().c_str());
+ break;
+ }
+}
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::gc_process_relocs(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols)
+{
+ typedef Target_tilegx<size, big_endian> Tilegx;
+ typedef typename Target_tilegx<size, big_endian>::Scan Scan;
+
+ if (sh_type == elfcpp::SHT_REL)
+ {
+ return;
+ }
+
+ gold::gc_process_relocs<size, big_endian,
+ Tilegx, elfcpp::SHT_RELA, Scan,
+ typename Target_tilegx<size, big_endian>::Relocatable_size_for_reloc>(
+ symtab,
+ layout,
+ this,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_symbols);
+}
+// Scan relocations for a section.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::scan_relocs(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols)
+{
+ typedef Target_tilegx<size, big_endian> Tilegx;
+ typedef typename Target_tilegx<size, big_endian>::Scan Scan;
+
+ if (sh_type == elfcpp::SHT_REL)
+ {
+ gold_error(_("%s: unsupported REL reloc section"),
+ object->name().c_str());
+ return;
+ }
+
+ gold::scan_relocs<size, big_endian, Tilegx, elfcpp::SHT_RELA, Scan>(
+ symtab,
+ layout,
+ this,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_symbols);
+}
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::do_define_standard_symbols(
+ Symbol_table* symtab,
+ Layout* layout)
+{
+ Output_section* feedback_section = layout->find_output_section(".feedback");
+
+ if (feedback_section != NULL)
+ {
+ symtab->define_in_output_data("__feedback_section_end",
+ NULL,
+ Symbol_table::PREDEFINED,
+ feedback_section,
+ 0,
+ 0,
+ elfcpp::STT_NOTYPE,
+ elfcpp::STB_GLOBAL,
+ elfcpp::STV_HIDDEN,
+ 0,
+ true, // offset_is_from_end
+ false);
+ }
+}
+
+// Finalize the sections.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::do_finalize_sections(
+ Layout* layout,
+ const Input_objects*,
+ Symbol_table* symtab)
+{
+ const Reloc_section* rel_plt = (this->plt_ == NULL
+ ? NULL
+ : this->plt_->rela_plt());
+ layout->add_target_dynamic_tags(false, this->got_plt_, rel_plt,
+ this->rela_dyn_, true, true);
+
+ // Emit any relocs we saved in an attempt to avoid generating COPY
+ // relocs.
+ if (this->copy_relocs_.any_saved_relocs())
+ this->copy_relocs_.emit(this->rela_dyn_section(layout));
+
+ // Set the size of the _GLOBAL_OFFSET_TABLE_ symbol to the size of
+ // the .got section.
+ Symbol* sym = this->global_offset_table_;
+ if (sym != NULL)
+ {
+ uint64_t data_size = this->got_->current_data_size();
+ symtab->get_sized_symbol<size>(sym)->set_symsize(data_size);
+ }
+
+ if (parameters->doing_static_link()
+ && (this->plt_ == NULL || !this->plt_->has_irelative_section()))
+ {
+ // If linking statically, make sure that the __rela_iplt symbols
+ // were defined if necessary, even if we didn't create a PLT.
+ static const Define_symbol_in_segment syms[] =
+ {
+ {
+ "__rela_iplt_start", // name
+ elfcpp::PT_LOAD, // segment_type
+ elfcpp::PF_W, // segment_flags_set
+ elfcpp::PF(0), // segment_flags_clear
+ 0, // value
+ 0, // size
+ elfcpp::STT_NOTYPE, // type
+ elfcpp::STB_GLOBAL, // binding
+ elfcpp::STV_HIDDEN, // visibility
+ 0, // nonvis
+ Symbol::SEGMENT_START, // offset_from_base
+ true // only_if_ref
+ },
+ {
+ "__rela_iplt_end", // name
+ elfcpp::PT_LOAD, // segment_type
+ elfcpp::PF_W, // segment_flags_set
+ elfcpp::PF(0), // segment_flags_clear
+ 0, // value
+ 0, // size
+ elfcpp::STT_NOTYPE, // type
+ elfcpp::STB_GLOBAL, // binding
+ elfcpp::STV_HIDDEN, // visibility
+ 0, // nonvis
+ Symbol::SEGMENT_START, // offset_from_base
+ true // only_if_ref
+ }
+ };
+
+ symtab->define_symbols(layout, 2, syms,
+ layout->script_options()->saw_sections_clause());
+ }
+}
+
+// Perform a relocation.
+
+template<int size, bool big_endian>
+inline bool
+Target_tilegx<size, big_endian>::Relocate::relocate(
+ const Relocate_info<size, big_endian>* relinfo,
+ Target_tilegx<size, big_endian>* target,
+ Output_section*,
+ size_t relnum,
+ const elfcpp::Rela<size, big_endian>& rela,
+ unsigned int r_type,
+ const Sized_symbol<size>* gsym,
+ const Symbol_value<size>* psymval,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ section_size_type)
+{
+ typedef Tilegx_relocate_functions<size, big_endian> TilegxReloc;
+ typename TilegxReloc::Tilegx_howto r_howto;
+
+ const Sized_relobj_file<size, big_endian>* object = relinfo->object;
+
+ // Pick the value to use for symbols defined in the PLT.
+ Symbol_value<size> symval;
+ if (gsym != NULL
+ && gsym->use_plt_offset(Scan::get_reference_flags(r_type)))
+ {
+ symval.set_output_value(target->plt_address_for_global(gsym)
+ + gsym->plt_offset());
+ psymval = &symval;
+ }
+ else if (gsym == NULL && psymval->is_ifunc_symbol())
+ {
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
+ if (object->local_has_plt_offset(r_sym))
+ {
+ symval.set_output_value(target->plt_address_for_local(object, r_sym)
+ + object->local_plt_offset(r_sym));
+ psymval = &symval;
+ }
+ }
+
+ elfcpp::Elf_Xword addend = rela.get_r_addend();
+
+ // Get the GOT offset if needed.
+ // For tilegx, the GOT pointer points to the start of the GOT section.
+ bool have_got_offset = false;
+ unsigned int got_offset = 0;
+ unsigned int got_type = GOT_TYPE_STANDARD;
+ bool always_apply_relocation = false;
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ if (gsym != NULL)
+ {
+ gold_assert(gsym->has_got_offset(got_type));
+ got_offset = gsym->got_offset(got_type);
+ }
+ else
+ {
+ unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
+ gold_assert(object->local_has_got_offset(r_sym, got_type));
+ got_offset = object->local_got_offset(r_sym, got_type);
+ }
+ have_got_offset = true;
+ break;
+
+ default:
+ break;
+ }
+
+ r_howto = TilegxReloc::howto[r_type];
+ switch (r_type)
+ {
+ case elfcpp::R_TILEGX_NONE:
+ case elfcpp::R_TILEGX_GNU_VTINHERIT:
+ case elfcpp::R_TILEGX_GNU_VTENTRY:
+ break;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT:
+ gold_assert(have_got_offset);
+ symval.set_output_value(got_offset);
+ psymval = &symval;
+ always_apply_relocation = true;
+ addend = 0;
+
+ // when under PIC mode, these relocations are deferred to rtld
+ case elfcpp::R_TILEGX_IMM16_X0_HW0:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST:
+ if (always_apply_relocation
+ || !parameters->options().output_is_position_independent())
+ TilegxReloc::imm_x_general(view, object, psymval, addend, r_howto);
+ break;
+
+ case elfcpp::R_TILEGX_JUMPOFF_X1:
+ case elfcpp::R_TILEGX_JUMPOFF_X1_PLT:
+ gold_assert(gsym == NULL
+ || gsym->has_plt_offset()
+ || gsym->final_value_is_known()
+ || (gsym->is_defined()
+ && !gsym->is_from_dynobj()
+ && !gsym->is_preemptible()));
+ TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend,
+ address, r_howto);
+ break;
+
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
+ case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
+ TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend,
+ address, r_howto);
+ break;
+
+ case elfcpp::R_TILEGX_BROFF_X1:
+ case elfcpp::R_TILEGX_DEST_IMM8_X1:
+ TilegxReloc::imm_x_two_part_general(view, object, psymval,
+ addend, address, r_type);
+ break;
+
+
+ // below are general relocation types, which can be
+ // handled by target-independent handlers
+ case elfcpp::R_TILEGX_64:
+ TilegxReloc::abs64(view, object, psymval, addend);
+ break;
+
+ case elfcpp::R_TILEGX_64_PCREL:
+ TilegxReloc::pc_abs64(view, object, psymval, addend, address);
+ break;
+
+ case elfcpp::R_TILEGX_32:
+ TilegxReloc::abs32(view, object, psymval, addend);
+ break;
+
+ case elfcpp::R_TILEGX_32_PCREL:
+ TilegxReloc::pc_abs32(view, object, psymval, addend, address);
+ break;
+
+ case elfcpp::R_TILEGX_16:
+ TilegxReloc::abs16(view, object, psymval, addend);
+ break;
+
+ case elfcpp::R_TILEGX_16_PCREL:
+ TilegxReloc::pc_abs16(view, object, psymval, addend, address);
+ break;
+
+ case elfcpp::R_TILEGX_8:
+ Relocate_functions<size, big_endian>::rela8(view, object,
+ psymval, addend);
+ break;
+
+ case elfcpp::R_TILEGX_8_PCREL:
+ Relocate_functions<size, big_endian>::pcrela8(view, object,
+ psymval, addend, address);
+ break;
+
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ {
+ const bool is_final = (gsym == NULL
+ ? !parameters->options().shared()
+ : gsym->final_value_is_known());
+ tls::Tls_optimization opt_t =
+ Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final,
+ r_type);
+
+ switch (r_type)
+ {
+
+ case elfcpp::R_TILEGX_TLS_GD_CALL:
+ {
+ if (opt_t == tls::TLSOPT_NONE) {
+ Symbol *tls_sym = relinfo->symtab->lookup("__tls_get_addr");
+ symval.set_output_value(
+ target->plt_address_for_global(tls_sym)
+ + tls_sym->plt_offset());
+ psymval = &symval;
+ TilegxReloc::imm_x_pcrel_general(view, object, psymval,
+ addend, address, r_howto);
+ }
+ else if (opt_t == tls::TLSOPT_TO_IE
+ || opt_t == tls::TLSOPT_TO_LE)
+ TilegxReloc::tls_relax(view, r_type, opt_t);
+ }
+ break;
+
+ // XX_TLS_GD is the same as normal X_GOT relocation
+ // except allocating a got entry pair,
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
+ if (opt_t == tls::TLSOPT_NONE) {
+ got_type = GOT_TYPE_TLS_PAIR;
+ have_got_offset = true;
+ } else if (opt_t == tls::TLSOPT_TO_IE) {
+ got_type = GOT_TYPE_TLS_OFFSET;
+ have_got_offset = true;
+ }
+ goto do_update_value;
+ // XX_TLS_IE is the same as normal X_GOT relocation
+ // except allocating one additional runtime relocation
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
+ if (opt_t == tls::TLSOPT_NONE) {
+ got_type = GOT_TYPE_TLS_OFFSET;
+ have_got_offset = true;
+ }
+ do_update_value:
+ if (have_got_offset) {
+ if (gsym != NULL) {
+ gold_assert(gsym->has_got_offset(got_type));
+ got_offset = gsym->got_offset(got_type);
+ } else {
+ unsigned int r_sym
+ = elfcpp::elf_r_sym<size>(rela.get_r_info());
+ gold_assert(object->local_has_got_offset(r_sym, got_type));
+ got_offset = object->local_got_offset(r_sym, got_type);
+ }
+ }
+
+ if (opt_t == tls::TLSOPT_NONE
+ || opt_t == tls::TLSOPT_TO_IE) {
+ // for both GD/IE, these relocations
+ // actually calculate got offset, so
+ // there behavior are the same
+ gold_assert(have_got_offset);
+ symval.set_output_value(got_offset);
+ psymval = &symval;
+ addend = 0;
+ TilegxReloc::imm_x_general(view, object, psymval,
+ addend, r_howto);
+ break;
+ } // else if (opt_t == tls::TLSOPT_TO_LE)
+ // both GD/IE are turned into LE, which
+ // is absolute relocation.
+ //
+ // | go through
+ // |
+ // V
+ // LE
+ //
+ // tp
+ // |
+ // V
+ // t_var1 | t_var2 | t_var3 | ...
+ // --------------------------------------------------
+ //
+ // so offset to tp should be negative, we get offset
+ // from the following formular for LE
+ //
+ // t_var1_off = t_var1_sym_value - tls_section_start
+ //
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
+ case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
+ {
+ Output_segment *tls_segment = relinfo->layout->tls_segment();
+ if (tls_segment == NULL) {
+ gold_assert(parameters->errors()->error_count() > 0
+ || issue_undefined_symbol_error(gsym));
+ return false;
+ }
+
+ typename elfcpp::Elf_types<size>::Elf_Addr value
+ = psymval->value(relinfo->object, 0);
+ symval.set_output_value(value);
+ psymval = &symval;
+ TilegxReloc::imm_x_general(view, object, psymval,
+ addend, r_howto);
+ }
+ break;
+
+ // tls relaxation
+ case elfcpp::R_TILEGX_TLS_IE_LOAD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD:
+ case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD:
+ case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD:
+ TilegxReloc::tls_relax(view, r_type, opt_t);
+ break;
+
+ default:
+ gold_unreachable();
+ }
+ }
+ break;
+
+ // below are outstanding relocs
+ // should not existed in static linking stage
+ case elfcpp::R_TILEGX_COPY:
+ case elfcpp::R_TILEGX_GLOB_DAT:
+ case elfcpp::R_TILEGX_JMP_SLOT:
+ case elfcpp::R_TILEGX_RELATIVE:
+ case elfcpp::R_TILEGX_TLS_TPOFF32:
+ case elfcpp::R_TILEGX_TLS_TPOFF64:
+ case elfcpp::R_TILEGX_TLS_DTPMOD32:
+ case elfcpp::R_TILEGX_TLS_DTPMOD64:
+ case elfcpp::R_TILEGX_TLS_DTPOFF32:
+ case elfcpp::R_TILEGX_TLS_DTPOFF64:
+ gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
+ _("unexpected reloc %u in object file"),
+ r_type);
+ break;
+
+ default:
+ gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
+ _("unsupported reloc %u"),
+ r_type);
+ break;
+ }
+
+ return true;
+}
+
+// Relocate section data.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::relocate_section(
+ const Relocate_info<size, big_endian>* relinfo,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ section_size_type view_size,
+ const Reloc_symbol_changes* reloc_symbol_changes)
+{
+ typedef Target_tilegx<size, big_endian> Tilegx;
+ typedef typename Target_tilegx<size, big_endian>::Relocate Tilegx_relocate;
+
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ gold::relocate_section<size, big_endian, Tilegx,
+ elfcpp::SHT_RELA, Tilegx_relocate>(
+ relinfo,
+ this,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ view,
+ address,
+ view_size,
+ reloc_symbol_changes);
+}
+
+// Apply an incremental relocation. Incremental relocations always refer
+// to global symbols.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::apply_relocation(
+ const Relocate_info<size, big_endian>* relinfo,
+ typename elfcpp::Elf_types<size>::Elf_Addr r_offset,
+ unsigned int r_type,
+ typename elfcpp::Elf_types<size>::Elf_Swxword r_addend,
+ const Symbol* gsym,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr address,
+ section_size_type view_size)
+{
+ gold::apply_relocation<size, big_endian, Target_tilegx<size, big_endian>,
+ typename Target_tilegx<size, big_endian>::Relocate>(
+ relinfo,
+ this,
+ r_offset,
+ r_type,
+ r_addend,
+ gsym,
+ view,
+ address,
+ view_size);
+}
+
+// Return the size of a relocation while scanning during a relocatable
+// link.
+
+template<int size, bool big_endian>
+unsigned int
+Target_tilegx<size,big_endian>::Relocatable_size_for_reloc::get_size_for_reloc(
+ unsigned int, Relobj*)
+{
+ // We are always SHT_RELA, so we should never get here.
+ gold_unreachable();
+ return 0;
+}
+
+// Scan the relocs during a relocatable link.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::scan_relocatable_relocs(
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_symbols,
+ Relocatable_relocs* rr)
+{
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA,
+ Relocatable_size_for_reloc> Scan_relocatable_relocs;
+
+ gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
+ Scan_relocatable_relocs>(
+ symtab,
+ layout,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_symbols,
+ rr);
+}
+
+// Relocate a section during a relocatable link.
+
+template<int size, bool big_endian>
+void
+Target_tilegx<size, big_endian>::relocate_relocs(
+ const Relocate_info<size, big_endian>* relinfo,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ off_t offset_in_output_section,
+ const Relocatable_relocs* rr,
+ unsigned char* view,
+ typename elfcpp::Elf_types<size>::Elf_Addr view_address,
+ section_size_type view_size,
+ unsigned char* reloc_view,
+ section_size_type reloc_view_size)
+{
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>(
+ relinfo,
+ prelocs,
+ reloc_count,
+ output_section,
+ offset_in_output_section,
+ rr,
+ view,
+ view_address,
+ view_size,
+ reloc_view,
+ reloc_view_size);
+}
+
+// Return the value to use for a dynamic which requires special
+// treatment. This is how we support equality comparisons of function
+// pointers across shared library boundaries, as described in the
+// processor specific ABI supplement.
+
+template<int size, bool big_endian>
+uint64_t
+Target_tilegx<size, big_endian>::do_dynsym_value(const Symbol* gsym) const
+{
+ gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset());
+ return this->plt_address_for_global(gsym) + gsym->plt_offset();
+}
+
+// Return the value to use for the base of a DW_EH_PE_datarel offset
+// in an FDE. Solaris and SVR4 use DW_EH_PE_datarel because their
+// assembler can not write out the difference between two labels in
+// different sections, so instead of using a pc-relative value they
+// use an offset from the GOT.
+
+template<int size, bool big_endian>
+uint64_t
+Target_tilegx<size, big_endian>::do_ehframe_datarel_base() const
+{
+ gold_assert(this->global_offset_table_ != NULL);
+ Symbol* sym = this->global_offset_table_;
+ Sized_symbol<size>* ssym = static_cast<Sized_symbol<size>*>(sym);
+ return ssym->value();
+}
+
+// The selector for tilegx object files.
+
+template<int size, bool big_endian>
+class Target_selector_tilegx : public Target_selector
+{
+public:
+ Target_selector_tilegx()
+ : Target_selector(elfcpp::EM_TILEGX, size, big_endian,
+ (size == 64
+ ? (big_endian ? "elf64-tilegx-be" : "elf64-tilegx-le")
+ : (big_endian ? "elf32-tilegx-be"
+ : "elf32-tilegx-le")),
+ (size == 64
+ ? (big_endian ? "elf64tilegx_be" : "elf64tilegx")
+ : (big_endian ? "elf32tilegx_be" : "elf32tilegx")))
+ { }
+
+ Target*
+ do_instantiate_target()
+ { return new Target_tilegx<size, big_endian>(); }
+
+};
+
+Target_selector_tilegx<64, false> target_selector_tilegx64_le;
+Target_selector_tilegx<32, false> target_selector_tilegx32_le;
+Target_selector_tilegx<64, true> target_selector_tilegx64_be;
+Target_selector_tilegx<32, true> target_selector_tilegx32_be;
+} // End anonymous namespace.
generated by cgit v1.1 at 2024-12-04 07:00:00 +0000