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Add support for Mips32r6 and Mips64r6.

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elfcpp/
	* mips.h (R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3,
	R_MIPS_PC19_S2, R_MIPS_PCHI16, R_MIPS_PCLO16): New enums for
	Mips32r6 and Mips64r6 relocations.
	(r6_isa): New function.
gold/
	* mips.cc (relocation_needs_la25_stub): Add support for relocs:
	R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
	(hi16_reloc): Add support for R_MIPS_PCHI16 relocation.
	(is_matching_lo16_reloc): Likewise.
	(lo16_reloc): Add support for R_MIPS_PCLO16 relocation.
	(Mips_output_data_plt::plt_entry_r6): New static data member for
	R6 PLT entry.
	(Target_mips::is_output_r6): New method.
	(Target_mips::Mips_mach): Add new enum constants.
	(Mips_relocate_functions::Status): Likewise.
	(Mips_relocate_functions::pchi16_relocs): New static data member.
	(Mips_relocate_functions::relpc21): New method.
	(Mips_relocate_functions::relpc26): Likewise.
	(Mips_relocate_functions::relpc18): Likewise.
	(Mips_relocate_functions::relpc19): Likewise.
	(Mips_relocate_functions::relpchi16): Likewise.
	(Mips_relocate_functions::do_relpchi16): Likewise.
	(Mips_relocate_functions::relpclo16): Likewise.
	(Mips_output_data_plt::do_write): Add support for Mips r6 plt
	entry.
	(Target_mips::mips_32bit_flags): Add E_MIPS_ARCH_32R6 support.
	(Target_mips::elf_mips_mach): Add E_MIPS_ARCH_32R6 and
	E_MIPS_ARCH_64R6 support.
	(Target_mips::update_abiflags_isa): Likewise.
	(mips_get_size_for_reloc): Add support for relocs: R_MIPS_PCHI16,
	R_MIPS_PCLO16, R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3 and
	R_MIPS_PC19_S2.
	(Target_mips::Scan::local): Add support for relocs: R_MIPS_PCHI16
	and R_MIPS_PCLO16.
	(Target_mips::Scan::global): Add support for relocs:
	R_MIPS_PC21_S2 and R_MIPS_PC26_S2.
	(Target_mips::Relocate::relocate): Call functions for resolving
	Mips32r6 and Mips64r6 relocations, and print error message for
	STATUS_PCREL_UNALIGNED.
	(Target_mips::Scan::get_reference_flags): Add support for relocs:
	R_MIPS_PCHI16, R_MIPS_PCLO16, R_MIPS_PC21_S2, R_MIPS_PC26_S2,
	R_MIPS_PC18_S3 and R_MIPS_PC19_S2.
	(Target_mips::elf_mips_mach_name): Add E_MIPS_ARCH_32R6 and
	E_MIPS_ARCH_64R6 support.
This commit is contained in:
Vladimir Radosavljevic
2016-06-20 11:45:18 -07:00
committed by Cary Coutant
parent 7dc3990e40
commit f5b117594f
4 changed files with 407 additions and 10 deletions
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14
elfcpp/mips.h
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@ -98,6 +98,12 @@ enum
R_MIPS_TLS_TPREL_HI16 = 49,
R_MIPS_TLS_TPREL_LO16 = 50,
R_MIPS_GLOB_DAT = 51,
R_MIPS_PC21_S2 = 60,
R_MIPS_PC26_S2 = 61,
R_MIPS_PC18_S3 = 62,
R_MIPS_PC19_S2 = 63,
R_MIPS_PCHI16 = 64,
R_MIPS_PCLO16 = 65,
// These relocs are used for the mips16.
R_MIPS16_26 = 100,
R_MIPS16_GPREL = 101,
@ -479,6 +485,14 @@ bool
abi_n32(elfcpp::Elf_Word e_flags)
{ return (e_flags & elfcpp::EF_MIPS_ABI2) != 0; }
// Whether the ISA is R6.
bool
r6_isa(elfcpp::Elf_Word e_flags)
{
return ((e_flags & elfcpp::EF_MIPS_ARCH) == elfcpp::E_MIPS_ARCH_32R6)
|| ((e_flags & elfcpp::EF_MIPS_ARCH) == elfcpp::E_MIPS_ARCH_64R6);
}
// Whether the file has microMIPS code.
bool
is_micromips(elfcpp::Elf_Word e_flags)