2016-02-07  Cary Coutant  <ccoutant@gmail.com>

	PR gold/18695
	* x86_64.cc (Target_x86_64::Relocate::relocate): Add additional
	information to relocation overflow errors.

2016-02-06  Cary Coutant  <ccoutant@gmail.com>

	PR gold/18695
	* x86_64.cc (X86_64_relocate_functions::pcrela32_check): Fix x32
	overflow checking when symbol value + addend < 0.

2016-02-06  Cary Coutant  <ccoutant@gmail.com>

	PR gold/19577
	* reloc.h (Limits): New class.
	(Bits::has_overflow32): Use min/max values from Limits.
	(Bits::has_unsigned_overflow32): Likewise.
	(Bits::has_signed_unsigned_overflow32): Likewise.
	(Bits::has_overflow): Likewise.
	(Bits::has_unsigned_overflow): Likewise.
	(Bits::has_signed_unsigned_overflow64): Likewise.

2016-02-06  Cary Coutant  <ccoutant@gmail.com>

	PR gold/19567
	* reloc.h (Relocate_functions::Overflow_check): Add comments.
	* x86_64.cc (X86_64_relocate_functions): New class.
	(Target_x86_64::Relocate::relocate): Use the new class.
	* testsuite/Makefile.am (x86_64_overflow_pc32): Add -Tdata option.
	(x32_overflow_pc32): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/x32_overflow_pc32.sh: New script.
	* testsuite/x86_64_overflow_pc32.s: Remove .space directive.

2016-02-06  Cary Coutant  <ccoutant@gmail.com>

	PR gold/19577
	* reloc.h (Bits::has_unsigned_overflow32): Fix static_cast.
	(Bits::has_unsigned_overflow): Remove unnecessary static_cast.

2016-02-06  Cary Coutant  <ccoutant@gmail.com>

	PR gold/19577
	* reloc.h (Bits::has_unsigned_overflow32): Fix unsigned/signed
	comparison.
	(Bits::has_unsigned_overflow): Likewise.

2016-02-06  Marcin Kościelnicki  <koriakin@0x04.net>

	* i386.cc (Target_i386::is_call_to_non_split): Add view and view_size
	parameters.
	* reloc.cc (Sized_relobj_file::split_stack_adjust_reltype): Pass view
	and view_size to is_call_to_non_split.
	* target.cc (Target::is_call_to_non_split): Add view and view_size
	parameters.
	* target.h (class Target): Likewise.

2016-02-05  Sriraman Tallam  <tmsriram@google.com>

	* icf.cc (get_rel_addend): New function.
	(get_section_contents):  Move merge section addend computation to a
	new function.  Ignore negative values for SHT_REL and SHT_RELA addends.
	Fix bug to not read past the length of the section.

2016-02-05  Cary Coutant  <ccoutant@gmail.com>
	    Andrew Senkevich  <andrew.senkevich@intel.com>

	PR gold/18695
	* x86_64.cc (Target_x86_64::Relocate::relocate): Add overflow
	checking for R_X86_64_32, R_X86_64_32S, R_X86_64_PC32, and
	R_X86_64_PLT32.
	* testsuite/Makefile.am (x86_64_overflow_pc32): New test.
	* testsuite/x86_64_overflow_pc32.sh: New test script.
	* testsuite/x86_64_overflow_pc32.s: New source file.

2016-02-05  Cary Coutant  <ccoutant@gmail.com>

	PR gold/18695
	* reloc.h (Relocate_functions::Address): New typedef.
	(Relocate_functions::Addendtype): New typedef.
	(Relocate_functions::Overflow_check): New enum type.
	(Relocate_functions::Reloc_status): New enum type.
	(Relocate_functions::check_overflow): New function template.
	(Relocate_functions::rel): Add check parameter; check for overflow.
	(Relocate_functions::rel_unaligned): Likewise.
	(Relocate_functions::rela): Likewise.
	(Relocate_functions::pcrel): Likewise.
	(Relocate_functions::pcrel_unaligned): Likewise.
	(Relocate_functions::pcrela): Likewise.
	(Relocate_functions::rel8): Adjust parameter types.
	(Relocate_functions::rela8): Likewise.
	(Relocate_functions::pcrel8): Likewise.
	(Relocate_functions::pcrela8): Likewise.
	(Relocate_functions::rel16): Likewise.
	(Relocate_functions::rela168): Likewise.
	(Relocate_functions::pcrel16): Likewise.
	(Relocate_functions::pcrela16): Likewise.
	(Relocate_functions::rel32): Likewise.
	(Relocate_functions::rel32_unaligned): Likewise.
	(Relocate_functions::rela32): Likewise.
	(Relocate_functions::pcrel32): Likewise.
	(Relocate_functions::pcrel32_unaligned): Likewise.
	(Relocate_functions::pcrela32): Likewise.
	(Relocate_functions::rel8_check): New function.
	(Relocate_functions::rela8_check): New function.
	(Relocate_functions::pcrel8_check): New function.
	(Relocate_functions::pcrela8_check): New function.
	(Relocate_functions::rel16_check): New function.
	(Relocate_functions::rela168_check): New function.
	(Relocate_functions::pcrel16_check): New function.
	(Relocate_functions::pcrela16_check): New function.
	(Relocate_functions::rel32_check): New function.
	(Relocate_functions::rel32_unaligned_check): New function.
	(Relocate_functions::rela32_check): New function.
	(Relocate_functions::pcrel32_check): New function.
	(Relocate_functions::pcrel32_unaligned_check): New function.
	(Relocate_functions::pcrela32_check): New function.
	(Bits::has_unsigned_overflow32): New function.
	(Bits::has_unsigned_overflow): New function.
	* testsuite/Makefile.am (overflow_unittest): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/overflow_unittest.cc: New source file.

2016-02-04  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (relocate): Adjust last patch for big-endian.

2016-02-02  Alan Modra  <amodra@gmail.com>

	* powerpc.cc (relocate): Further restrict ELFv2 entry optimization.

2016-01-15 Han Shen  <shenhan@google.com>

	PR gold/19472 - need pc-relative stubs.

	* aarch64.cc (Reloc_stub::stub_type_for_reloc): Return PC-relative
	stub type for DSOs and pie executables.

2016-01-12  H.J. Lu  <hongjiu.lu@intel.com>

	* i386.cc (Target_i386::Classify_reloc::get_r_addend): Remove
	'typename'.

2016-01-12  Cary Coutant  <ccoutant@gmail.com>

	* arm.cc (Target_arm::Classify_reloc::get_r_addend): New method.
	* i386.cc (Target_i386::Classify_reloc::get_r_addend): New method.
	* mips.cc (Target_arm::Mips_classify_reloc::get_r_addend): (Both
	specializations) New method.

2016-01-11  Cary Coutant  <ccoutant@gmail.com>

	PR gold/19353
	* aarch64.cc (Target_aarch64::relocate_tls): Don't insist that
	we have a TLS segment for GD-to-IE optimization.
	* i386.cc (Target_i386::tls_gd_to_ie): Remove tls_segment parameter.
	Adjust all calls.
	(Target_i386::tls_desc_gd_to_ie): Likewise.
	(Target_i386::relocate_tls): Don't insist that we have a TLS segment
	for TLSDESC GD-to-IE optimizations.
	* x86_64.cc (Target_x86_64::tls_gd_to_ie): Remove tls_segment parameter.
	Adjust all calls.
	(Target_x86_64::tls_desc_gd_to_ie): Likewise.
	(Target_x86_64::relocate_tls): Don't insist that we have a TLS segment
	for TLSDESC GD-to-IE optimizations.

2016-01-11  Cary Coutant  <ccoutant@gmail.com>

	Refactor gold to enable support for MIPS-64 relocation format.

	* gc.h (get_embedded_addend_size): Remove sh_type parameter.
	(gc_process_relocs): Remove sh_type template parameter.
	Use Classify_reloc to access r_sym, r_type, and r_addend fields.
	* object.h (Sized_relobj_file::split_stack_adjust): Add target
	parameter.
	(Sized_relobj_file::split_stack_adjust_reltype): Likewise.
	* reloc-types.h (Reloc_types::copy_reloc_addend): (SHT_REL and SHT_RELA
	specializations) Remove.
	* reloc.cc (Emit_relocs_strategy): Rename and move to target-reloc.h.
	(Sized_relobj_file::emit_relocs_scan): Call Target::emit_relocs_scan().
	(Sized_relobj_file::emit_relocs_scan_reltype): Remove.
	(Sized_relobj_file::split_stack_adjust): Add target parameter.
	Adjust all callers.
	(Sized_relobj_file::split_stack_adjust_reltype): Likewise. Call
	Target::get_r_sym() to get r_sym field from relocations.
	(Track_relocs::next_symndx): Call Target::get_r_sym().
	* target-reloc.h (scan_relocs): Remove sh_type template parameter;
	add Classify_reloc template parameter.  Use for accessing r_sym and
	r_type.
	(relocate_section): Likewise.
	(Default_classify_reloc): New class (renamed and moved from reloc.cc).
	(Default_scan_relocatable_relocs): Remove sh_type template parameter.
	(Default_scan_relocatable_relocs::Reltype): New typedef.
	(Default_scan_relocatable_relocs::reloc_size): New const.
	(Default_scan_relocatable_relocs::sh_type): New const.
	(Default_scan_relocatable_relocs::get_r_sym): New method.
	(Default_scan_relocatable_relocs::get_r_type): New method.
	(Default_emit_relocs_strategy): New class.
	(scan_relocatable_relocs): Replace sh_type template parameter with
	Scan_relocatable_relocs class.  Use it to access r_sym and r_type
	fields.
	(relocate_relocs): Replace sh_type template parameter with
	Classify_reloc class.  Use it to access r_sym and r_type fields.
	* target.h (Target::is_call_to_non_split): Replace r_type parameter
	with pointer to relocation. Adjust all callers.
	(Target::do_is_call_to_non_split): Likewise.
	(Target::emit_relocs_scan): New virtual method.
	(Sized_target::get_r_sym): New virtual method.
	* target.cc (Target::do_is_call_to_non_split): Replace r_type parameter
	with pointer to relocation.

	* aarch64.cc (Target_aarch64::emit_relocs_scan): New method.
	(Target_aarch64::Relocatable_size_for_reloc): Remove.
	(Target_aarch64::gc_process_relocs): Use Default_classify_reloc.
	(Target_aarch64::scan_relocs): Likewise.
	(Target_aarch64::relocate_section): Likewise.
	(Target_aarch64::Relocatable_size_for_reloc::get_size_for_reloc):
	Remove.
	(Target_aarch64::scan_relocatable_relocs): Use Default_classify_reloc.
	(Target_aarch64::relocate_relocs): Use Default_classify_reloc.
	* arm.cc (Target_arm::Arm_scan_relocatable_relocs): Remove sh_type
	template parameter.
	(Target_arm::emit_relocs_scan): New method.
	(Target_arm::Relocatable_size_for_reloc): Replace with...
	(Target_arm::Classify_reloc): ...this.
	(Target_arm::gc_process_relocs): Use Classify_reloc.
	(Target_arm::scan_relocs): Likewise.
	(Target_arm::relocate_section): Likewise.
	(Target_arm::scan_relocatable_relocs): Likewise.
	(Target_arm::relocate_relocs): Likewise.
	* i386.cc (Target_i386::emit_relocs_scan): New method.
	(Target_i386::Relocatable_size_for_reloc): Replace with...
	(Target_i386::Classify_reloc): ...this.
	(Target_i386::gc_process_relocs): Use Classify_reloc.
	(Target_i386::scan_relocs): Likewise.
	(Target_i386::relocate_section): Likewise.
	(Target_i386::scan_relocatable_relocs): Likewise.
	(Target_i386::relocate_relocs): Likewise.
	* mips.cc (Mips_scan_relocatable_relocs): Remove sh_type template
	parameter.
	(Mips_reloc_types): New class template.
	(Mips_classify_reloc): New class template.
	(Target_mips::Reltype): New typedef.
	(Target_mips::Relatype): New typedef.
	(Target_mips::emit_relocs_scan): New method.
	(Target_mips::get_r_sym): New method.
	(Target_mips::Relocatable_size_for_reloc): Replace with
	Mips_classify_reloc.
	(Target_mips::copy_reloc): Use Mips_classify_reloc.
	(Target_mips::gc_process_relocs): Likewise.
	(Target_mips::scan_relocs): Likewise.
	(Target_mips::relocate_section): Likewise.
	(Target_mips::scan_relocatable_relocs): Likewise.
	(Target_mips::relocate_relocs): Likewise.
	(mips_get_size_for_reloc): New function, factored out from
	Relocatable_size_for_reloc::get_size_for_reloc.
	(Target_mips::Scan::local): Use Mips_classify_reloc.
	(Target_mips::Scan::global): Likewise.
	(Target_mips::Relocate::relocate): Likewise.
	* powerpc.cc (Target_powerpc::emit_relocs_scan): New method.
	(Target_powerpc::Relocatable_size_for_reloc): Remove.
	(Target_powerpc::gc_process_relocs): Use Default_classify_reloc.
	(Target_powerpc::scan_relocs): Likewise.
	(Target_powerpc::relocate_section): Likewise.
	(Powerpc_scan_relocatable_reloc): Convert to class template.
	(Powerpc_scan_relocatable_reloc::Reltype): New typedef.
	(Powerpc_scan_relocatable_reloc::reloc_size): New const.
	(Powerpc_scan_relocatable_reloc::sh_type): New const.
	(Powerpc_scan_relocatable_reloc::get_r_sym): New method.
	(Powerpc_scan_relocatable_reloc::get_r_type): New method.
	(Target_powerpc::scan_relocatable_relocs): Use
	Powerpc_scan_relocatable_reloc.
	(Target_powerpc::relocate_relocs): Use Default_classify_reloc.
	* s390.cc (Target_s390::emit_relocs_scan): New method.
	(Target_s390::Relocatable_size_for_reloc): Remove.
	(Target_s390::gc_process_relocs): Use Default_classify_reloc.
	(Target_s390::scan_relocs): Likewise.
	(Target_s390::relocate_section): Likewise.
	(Target_s390::Relocatable_size_for_reloc::get_size_for_reloc):
	Remove.
	(Target_s390::scan_relocatable_relocs): Use Default_classify_reloc.
	(Target_s390::relocate_relocs): Use Default_classify_reloc.
	* sparc.cc (Target_sparc::emit_relocs_scan): New method.
	(Target_sparc::Relocatable_size_for_reloc): Remove.
	(Target_sparc::gc_process_relocs): Use Default_classify_reloc.
	(Target_sparc::scan_relocs): Likewise.
	(Target_sparc::relocate_section): Likewise.
	(Target_sparc::Relocatable_size_for_reloc::get_size_for_reloc):
	Remove.
	(Target_sparc::scan_relocatable_relocs): Use Default_classify_reloc.
	(Target_sparc::relocate_relocs): Use Default_classify_reloc.
	* tilegx.cc (Target_tilegx::emit_relocs_scan): New method.
	(Target_tilegx::Relocatable_size_for_reloc): Remove.
	(Target_tilegx::gc_process_relocs): Use Default_classify_reloc.
	(Target_tilegx::scan_relocs): Likewise.
	(Target_tilegx::relocate_section): Likewise.
	(Target_tilegx::Relocatable_size_for_reloc::get_size_for_reloc):
	Remove.
	(Target_tilegx::scan_relocatable_relocs): Use Default_classify_reloc.
	(Target_tilegx::relocate_relocs): Use Default_classify_reloc.
	* x86_64.cc (Target_x86_64::emit_relocs_scan): New method.
	(Target_x86_64::Relocatable_size_for_reloc): Remove.
	(Target_x86_64::gc_process_relocs): Use Default_classify_reloc.
	(Target_x86_64::scan_relocs): Likewise.
	(Target_x86_64::relocate_section): Likewise.
	(Target_x86_64::Relocatable_size_for_reloc::get_size_for_reloc):
	Remove.
	(Target_x86_64::scan_relocatable_relocs): Use Default_classify_reloc.
	(Target_x86_64::relocate_relocs): Use Default_classify_reloc.

	* testsuite/testfile.cc (Target_test::emit_relocs_scan): New method.

2016-01-01  Alan Modra  <amodra@gmail.com>

	Update year range in copyright notice of all files.

For older changes see ChangeLog-0815

Copyright (C) 2016 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
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