2014-04-15 Sasa Stankovic <Sasa.Stankovic@imgtec.com>
elfcpp/ * mips.h (R _MIPS16_TLS_GD, R_MIPS16_TLS_LDM, R_MIPS16_TLS_DTPREL_HI16, R_MIPS16_TLS_DTPREL_LO16, R_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_LO16, R_MICROMIPS_26_S1, R_MICROMIPS_HI16, R_MICROMIPS_LO16, R_MICROMIPS_GPREL16, R_MICROMIPS_LITERAL, R_MICROMIPS_GOT16, R_MICROMIPS_PC7_S1, R_MICROMIPS_PC10_S1, R_MICROMIPS_PC16_S1, R_MICROMIPS_CALL16, R_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_OFST, R_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_LO16, R_MICROMIPS_SUB, R_MICROMIPS_HIGHER, R_MICROMIPS_HIGHEST, R_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_LO16, R_MICROMIPS_SCN_DISP, R_MICROMIPS_JALR, R_MICROMIPS_HI0_LO16, R_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_DTPREL_HI16, R_MICROMIPS_TLS_DTPREL_LO16, R_MICROMIPS_TLS_GOTTPREL, R_MICROMIPS_TLS_TPREL_HI16, R_MICROMIPS_TLS_TPREL_LO16, R_MICROMIPS_GPREL7_S2, R_MICROMIPS_PC23_S20, R_MIPS_EH): New enums for relocations (mips16 and micromips). (STO_MIPS_FLAGS): New enum constant. (elf_st_is_mips16): New function. (elf_st_is_micromips): New function. (is_micromips): New function. (abi_n32): New function. (abi_n64): New function. (ODK_NULL, ODK_REGINFO, ODK_EXCEPTIONS, ODK_PAD, ODK_HWPATCH, ODK_FILL, ODK_TAGS, ODK_HWAND, ODK_HWOR, ODK_GP_GROUP, ODK_IDENT): New enum constants. * elfcpp.h (SHT_MIPS_OPTIONS): New enum constant.
This commit is contained in:
Cary Coutant
parent
099fc3ea4c
commit
bfb1f6c316
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@ -1,3 +1,32 @@
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2014-04-15 Sasa Stankovic <Sasa.Stankovic@imgtec.com>
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* mips.h (R _MIPS16_TLS_GD, R_MIPS16_TLS_LDM, R_MIPS16_TLS_DTPREL_HI16,
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R_MIPS16_TLS_DTPREL_LO16, R_MIPS16_TLS_GOTTPREL,
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R_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_LO16, R_MICROMIPS_26_S1,
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R_MICROMIPS_HI16, R_MICROMIPS_LO16, R_MICROMIPS_GPREL16,
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R_MICROMIPS_LITERAL, R_MICROMIPS_GOT16, R_MICROMIPS_PC7_S1,
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R_MICROMIPS_PC10_S1, R_MICROMIPS_PC16_S1, R_MICROMIPS_CALL16,
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R_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_OFST,
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R_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_LO16, R_MICROMIPS_SUB,
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R_MICROMIPS_HIGHER, R_MICROMIPS_HIGHEST, R_MICROMIPS_CALL_HI16,
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R_MICROMIPS_CALL_LO16, R_MICROMIPS_SCN_DISP, R_MICROMIPS_JALR,
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R_MICROMIPS_HI0_LO16, R_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_LDM,
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R_MICROMIPS_TLS_DTPREL_HI16, R_MICROMIPS_TLS_DTPREL_LO16,
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R_MICROMIPS_TLS_GOTTPREL, R_MICROMIPS_TLS_TPREL_HI16,
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R_MICROMIPS_TLS_TPREL_LO16, R_MICROMIPS_GPREL7_S2,
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R_MICROMIPS_PC23_S20, R_MIPS_EH): New enums for relocations (mips16 and
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micromips).
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(STO_MIPS_FLAGS): New enum constant.
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(elf_st_is_mips16): New function.
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(elf_st_is_micromips): New function.
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(is_micromips): New function.
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(abi_n32): New function.
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(abi_n64): New function.
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(ODK_NULL, ODK_REGINFO, ODK_EXCEPTIONS, ODK_PAD, ODK_HWPATCH, ODK_FILL,
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ODK_TAGS, ODK_HWAND, ODK_HWOR, ODK_GP_GROUP, ODK_IDENT): New enum
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constants.
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* elfcpp.h (SHT_MIPS_OPTIONS): New enum constant.
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2014-03-05 Alan Modra <amodra@gmail.com>
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Update copyright years.
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@ -400,9 +400,11 @@ enum SHT
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// x86_64 unwind information.
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SHT_X86_64_UNWIND = 0x70000001,
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//MIPS-specific section types.
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// Register info section
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// MIPS-specific section types.
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// Section contains register usage information.
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SHT_MIPS_REGINFO = 0x70000006,
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// Section contains miscellaneous options.
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SHT_MIPS_OPTIONS = 0x7000000d,
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// Link editor is to sort the entries in this section based on the
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// address specified in the associated symbol table entry.
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143
elfcpp/mips.h
143
elfcpp/mips.h
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@ -1,7 +1,8 @@
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// mips.h -- ELF definitions specific to EM_MIPS -*- C++ -*-
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// Copyright (C) 2012-2014 Free Software Foundation, Inc.
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// Written by Aleksandar Simeonov <aleksandar.simeonov@rt-rk.com>.
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// Written by Sasa Stankovic <sasa.stankovic@rt-rk.com>
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// and Aleksandar Simeonov <aleksandar.simeonov@rt-rk.com>.
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// This file is part of elfcpp.
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@ -46,16 +47,16 @@ enum
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{
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R_MIPS_NONE = 0,
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R_MIPS_16 = 1,
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R_MIPS_32 = 2,
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R_MIPS_REL32 = 3,
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R_MIPS_32 = 2, // In Elf 64: alias R_MIPS_ADD
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R_MIPS_REL32 = 3, // In Elf 64: alias R_MIPS_REL
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R_MIPS_26 = 4,
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R_MIPS_HI16 = 5,
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R_MIPS_LO16 = 6,
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R_MIPS_GPREL16 = 7,
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R_MIPS_GPREL16 = 7, // In Elf 64: alias R_MIPS_GPREL
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R_MIPS_LITERAL = 8,
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R_MIPS_GOT16 = 9,
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R_MIPS_GOT16 = 9, // In Elf 64: alias R_MIPS_GOT
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R_MIPS_PC16 = 10,
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R_MIPS_CALL16 = 11,
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R_MIPS_CALL16 = 11, // In Elf 64: alias R_MIPS_CALL
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R_MIPS_GPREL32 = 12,
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R_MIPS_UNUSED1 = 13,
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R_MIPS_UNUSED2 = 14,
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@ -69,48 +70,101 @@ enum
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R_MIPS_GOT_HI16 = 22,
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R_MIPS_GOT_LO16 = 23,
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R_MIPS_SUB = 24,
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R_MIPS_INSERT_A = 25, // Empty relocation
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R_MIPS_INSERT_B = 26, // Empty relocation
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R_MIPS_DELETE = 27, // Empty relocation
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R_MIPS_INSERT_A = 25,
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R_MIPS_INSERT_B = 26,
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R_MIPS_DELETE = 27,
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R_MIPS_HIGHER = 28,
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R_MIPS_HIGHEST = 29,
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R_MIPS_CALL_HI16 = 30,
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R_MIPS_CALL_LO16 = 31,
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R_MIPS_SCN_DISP = 32,
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R_MIPS_REL16 = 33, // Empty relocation
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R_MIPS_ADD_IMMEDIATE = 34, // Empty relocation
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R_MIPS_PJUMP = 35, // Empty relocation
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R_MIPS_RELGOT = 36, // Empty relocation
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R_MIPS_REL16 = 33,
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R_MIPS_ADD_IMMEDIATE = 34,
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R_MIPS_PJUMP = 35,
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R_MIPS_RELGOT = 36,
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R_MIPS_JALR = 37,
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// TLS relocations.
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R_MIPS_TLS_DTPMOD32 = 38,
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R_MIPS_TLS_DTPREL32 = 39,
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R_MIPS_TLS_DTPMOD64 = 40, // Empty relocation
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R_MIPS_TLS_DTPREL64 = 41, // Empty relocation
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R_MIPS_TLS_DTPMOD64 = 40,
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R_MIPS_TLS_DTPREL64 = 41,
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R_MIPS_TLS_GD = 42,
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R_MIPS_TLS_LDM = 43,
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R_MIPS_TLS_DTPREL_HI16 = 44,
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R_MIPS_TLS_DTPREL_LO16 = 45,
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R_MIPS_TLS_GOTTPREL = 46,
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R_MIPS_TLS_TPREL32 = 47,
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R_MIPS_TLS_TPREL64 = 48, // Empty relocation
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R_MIPS_TLS_TPREL64 = 48,
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R_MIPS_TLS_TPREL_HI16 = 49,
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R_MIPS_TLS_TPREL_LO16 = 50,
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R_MIPS_GLOB_DAT = 51,
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// These relocs are used for the mips16.
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R_MIPS16_26 = 100,
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R_MIPS16_GPREL = 101,
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R_MIPS16_GOT16 = 102,
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R_MIPS16_CALL16 = 103,
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R_MIPS16_HI16 = 104,
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R_MIPS16_LO16 = 105,
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R_MIPS16_TLS_GD = 106,
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R_MIPS16_TLS_LDM = 107,
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R_MIPS16_TLS_DTPREL_HI16 = 108,
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R_MIPS16_TLS_DTPREL_LO16 = 109,
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R_MIPS16_TLS_GOTTPREL = 110,
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R_MIPS16_TLS_TPREL_HI16 = 111,
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R_MIPS16_TLS_TPREL_LO16 = 112,
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R_MIPS_COPY = 126,
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R_MIPS_JUMP_SLOT = 127,
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// These relocations are specific to microMIPS.
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R_MICROMIPS_26_S1 = 133,
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R_MICROMIPS_HI16 = 134,
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R_MICROMIPS_LO16 = 135,
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R_MICROMIPS_GPREL16 = 136, // In Elf 64: alias R_MICROMIPS_GPREL
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R_MICROMIPS_LITERAL = 137,
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R_MICROMIPS_GOT16 = 138, // In Elf 64: alias R_MICROMIPS_GOT
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R_MICROMIPS_PC7_S1 = 139,
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R_MICROMIPS_PC10_S1 = 140,
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R_MICROMIPS_PC16_S1 = 141,
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R_MICROMIPS_CALL16 = 142, // In Elf 64: alias R_MICROMIPS_CALL
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R_MICROMIPS_GOT_DISP = 145,
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R_MICROMIPS_GOT_PAGE = 146,
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R_MICROMIPS_GOT_OFST = 147,
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R_MICROMIPS_GOT_HI16 = 148,
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R_MICROMIPS_GOT_LO16 = 149,
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R_MICROMIPS_SUB = 150,
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R_MICROMIPS_HIGHER = 151,
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R_MICROMIPS_HIGHEST = 152,
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R_MICROMIPS_CALL_HI16 = 153,
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R_MICROMIPS_CALL_LO16 = 154,
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R_MICROMIPS_SCN_DISP = 155,
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R_MICROMIPS_JALR = 156,
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R_MICROMIPS_HI0_LO16 = 157,
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// TLS relocations.
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R_MICROMIPS_TLS_GD = 162,
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R_MICROMIPS_TLS_LDM = 163,
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R_MICROMIPS_TLS_DTPREL_HI16 = 164,
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R_MICROMIPS_TLS_DTPREL_LO16 = 165,
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R_MICROMIPS_TLS_GOTTPREL = 166,
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R_MICROMIPS_TLS_TPREL_HI16 = 169,
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R_MICROMIPS_TLS_TPREL_LO16 = 170,
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// microMIPS GP- and PC-relative relocations.
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R_MICROMIPS_GPREL7_S2 = 172,
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R_MICROMIPS_PC23_S2 = 173,
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// This was a GNU extension used by embedded-PIC. It was co-opted by
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// mips-linux for exception-handling data. GCC stopped using it in
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// May, 2004, then started using it again for compact unwind tables.
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R_MIPS_PC32 = 248,
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R_MIPS_EH = 249,
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// This relocation is used internally by gas.
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R_MIPS_GNU_REL16_S2 = 250,
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// These are GNU extensions to enable C++ vtable garbage collection.
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R_MIPS_GNU_VTINHERIT = 253,
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R_MIPS_GNU_VTENTRY = 254
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};
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// Processor specific flags for the ELF header e_flags field. */
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// Processor specific flags for the ELF header e_flags field.
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enum
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{
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// At least one .noreorder directive appears in the source.
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// Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.
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STO_MIPS_ISA = 0xc0,
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// The mask spanning the rest of MIPS psABI flags. At most one is expected
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// to be set except for STO_MIPS16.
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STO_MIPS_FLAGS = ~(STO_MIPS_ISA | 0x3),
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// The MIPS psABI was updated in 2008 with support for PLTs and copy
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// relocs. There are therefore two types of nonzero SHN_UNDEF functions:
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// PLT entries and traditional MIPS lazy binding stubs. We mark the former
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DTP_OFFSET = 0x8000
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};
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bool
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elf_st_is_mips16(unsigned char st_other)
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{ return (st_other & elfcpp::STO_MIPS16) == elfcpp::STO_MIPS16; }
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bool
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elf_st_is_micromips(unsigned char st_other)
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{ return (st_other & elfcpp::STO_MIPS_ISA) == elfcpp::STO_MICROMIPS; }
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// Whether the ABI is N32.
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bool
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abi_n32(elfcpp::Elf_Word e_flags)
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{ return (e_flags & elfcpp::EF_MIPS_ABI2) != 0; }
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// Whether the ABI is N64.
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bool
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abi_64(unsigned char ei_class)
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{ return ei_class == elfcpp::ELFCLASS64; }
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// Whether the file has microMIPS code.
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bool
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is_micromips(elfcpp::Elf_Word e_flags)
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{ return (e_flags & elfcpp::EF_MIPS_ARCH_ASE_MICROMIPS) != 0; }
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// Values which may appear in the kind field of an Elf_Options structure.
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enum
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{
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// Undefined.
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ODK_NULL = 0,
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// Register usage and GP value.
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ODK_REGINFO = 1,
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// Exception processing information.
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ODK_EXCEPTIONS = 2,
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// Section padding information.
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ODK_PAD = 3,
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// Hardware workarounds performed.
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ODK_HWPATCH = 4,
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// Fill value used by the linker.
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ODK_FILL = 5,
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// Reserved space for desktop tools.
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ODK_TAGS = 6,
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// Hardware workarounds, AND bits when merging.
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ODK_HWAND = 7,
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// Hardware workarounds, OR bits when merging.
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ODK_HWOR = 8,
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// GP group to use for text/data sections.
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ODK_GP_GROUP = 9,
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// ID information.
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ODK_IDENT = 10
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};
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} // End namespace elfcpp.
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#endif // !defined(ELFCPP_MIPS_H)
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