mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 21:44:19 +08:00
580 lines
17 KiB
C++
580 lines
17 KiB
C++
// mips.h -- ELF definitions specific to EM_MIPS -*- C++ -*-
|
|
|
|
// Copyright (C) 2012-2023 Free Software Foundation, Inc.
|
|
// Written by Sasa Stankovic <sasa.stankovic@imgtec.com>
|
|
// and Aleksandar Simeonov <aleksandar.simeonov@rt-rk.com>.
|
|
|
|
// This file is part of elfcpp.
|
|
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Library General Public License
|
|
// as published by the Free Software Foundation; either version 2, or
|
|
// (at your option) any later version.
|
|
|
|
// In addition to the permissions in the GNU Library General Public
|
|
// License, the Free Software Foundation gives you unlimited
|
|
// permission to link the compiled version of this file into
|
|
// combinations with other programs, and to distribute those
|
|
// combinations without any restriction coming from the use of this
|
|
// file. (The Library Public License restrictions do apply in other
|
|
// respects; for example, they cover modification of the file, and
|
|
/// distribution when not linked into a combined executable.)
|
|
|
|
// 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
|
|
// Library General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU Library 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.
|
|
|
|
#ifndef ELFCPP_MIPS_H
|
|
#define ELFCPP_MIPS_H
|
|
|
|
// Documentation for the MIPS relocs is taken from
|
|
// http://math-atlas.sourceforge.net/devel/assembly/mipsabi32.pdf
|
|
|
|
namespace elfcpp
|
|
{
|
|
|
|
//
|
|
// MIPS Relocation Codes
|
|
//
|
|
|
|
enum
|
|
{
|
|
R_MIPS_NONE = 0,
|
|
R_MIPS_16 = 1,
|
|
R_MIPS_32 = 2, // In Elf 64: alias R_MIPS_ADD
|
|
R_MIPS_REL32 = 3, // In Elf 64: alias R_MIPS_REL
|
|
R_MIPS_26 = 4,
|
|
R_MIPS_HI16 = 5,
|
|
R_MIPS_LO16 = 6,
|
|
R_MIPS_GPREL16 = 7, // In Elf 64: alias R_MIPS_GPREL
|
|
R_MIPS_LITERAL = 8,
|
|
R_MIPS_GOT16 = 9, // In Elf 64: alias R_MIPS_GOT
|
|
R_MIPS_PC16 = 10,
|
|
R_MIPS_CALL16 = 11, // In Elf 64: alias R_MIPS_CALL
|
|
R_MIPS_GPREL32 = 12,
|
|
R_MIPS_UNUSED1 = 13,
|
|
R_MIPS_UNUSED2 = 14,
|
|
R_MIPS_UNUSED3 = 15,
|
|
R_MIPS_SHIFT5 = 16,
|
|
R_MIPS_SHIFT6 = 17,
|
|
R_MIPS_64 = 18,
|
|
R_MIPS_GOT_DISP = 19,
|
|
R_MIPS_GOT_PAGE = 20,
|
|
R_MIPS_GOT_OFST = 21,
|
|
R_MIPS_GOT_HI16 = 22,
|
|
R_MIPS_GOT_LO16 = 23,
|
|
R_MIPS_SUB = 24,
|
|
R_MIPS_INSERT_A = 25,
|
|
R_MIPS_INSERT_B = 26,
|
|
R_MIPS_DELETE = 27,
|
|
R_MIPS_HIGHER = 28,
|
|
R_MIPS_HIGHEST = 29,
|
|
R_MIPS_CALL_HI16 = 30,
|
|
R_MIPS_CALL_LO16 = 31,
|
|
R_MIPS_SCN_DISP = 32,
|
|
R_MIPS_REL16 = 33,
|
|
R_MIPS_ADD_IMMEDIATE = 34,
|
|
R_MIPS_PJUMP = 35,
|
|
R_MIPS_RELGOT = 36,
|
|
R_MIPS_JALR = 37,
|
|
// TLS relocations.
|
|
R_MIPS_TLS_DTPMOD32 = 38,
|
|
R_MIPS_TLS_DTPREL32 = 39,
|
|
R_MIPS_TLS_DTPMOD64 = 40,
|
|
R_MIPS_TLS_DTPREL64 = 41,
|
|
R_MIPS_TLS_GD = 42,
|
|
R_MIPS_TLS_LDM = 43,
|
|
R_MIPS_TLS_DTPREL_HI16 = 44,
|
|
R_MIPS_TLS_DTPREL_LO16 = 45,
|
|
R_MIPS_TLS_GOTTPREL = 46,
|
|
R_MIPS_TLS_TPREL32 = 47,
|
|
R_MIPS_TLS_TPREL64 = 48,
|
|
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,
|
|
R_MIPS16_GOT16 = 102,
|
|
R_MIPS16_CALL16 = 103,
|
|
R_MIPS16_HI16 = 104,
|
|
R_MIPS16_LO16 = 105,
|
|
R_MIPS16_TLS_GD = 106,
|
|
R_MIPS16_TLS_LDM = 107,
|
|
R_MIPS16_TLS_DTPREL_HI16 = 108,
|
|
R_MIPS16_TLS_DTPREL_LO16 = 109,
|
|
R_MIPS16_TLS_GOTTPREL = 110,
|
|
R_MIPS16_TLS_TPREL_HI16 = 111,
|
|
R_MIPS16_TLS_TPREL_LO16 = 112,
|
|
|
|
R_MIPS_COPY = 126,
|
|
R_MIPS_JUMP_SLOT = 127,
|
|
|
|
// These relocations are specific to microMIPS.
|
|
R_MICROMIPS_26_S1 = 133,
|
|
R_MICROMIPS_HI16 = 134,
|
|
R_MICROMIPS_LO16 = 135,
|
|
R_MICROMIPS_GPREL16 = 136, // In Elf 64: alias R_MICROMIPS_GPREL
|
|
R_MICROMIPS_LITERAL = 137,
|
|
R_MICROMIPS_GOT16 = 138, // In Elf 64: alias R_MICROMIPS_GOT
|
|
R_MICROMIPS_PC7_S1 = 139,
|
|
R_MICROMIPS_PC10_S1 = 140,
|
|
R_MICROMIPS_PC16_S1 = 141,
|
|
R_MICROMIPS_CALL16 = 142, // In Elf 64: alias R_MICROMIPS_CALL
|
|
R_MICROMIPS_GOT_DISP = 145,
|
|
R_MICROMIPS_GOT_PAGE = 146,
|
|
R_MICROMIPS_GOT_OFST = 147,
|
|
R_MICROMIPS_GOT_HI16 = 148,
|
|
R_MICROMIPS_GOT_LO16 = 149,
|
|
R_MICROMIPS_SUB = 150,
|
|
R_MICROMIPS_HIGHER = 151,
|
|
R_MICROMIPS_HIGHEST = 152,
|
|
R_MICROMIPS_CALL_HI16 = 153,
|
|
R_MICROMIPS_CALL_LO16 = 154,
|
|
R_MICROMIPS_SCN_DISP = 155,
|
|
R_MICROMIPS_JALR = 156,
|
|
R_MICROMIPS_HI0_LO16 = 157,
|
|
// TLS relocations.
|
|
R_MICROMIPS_TLS_GD = 162,
|
|
R_MICROMIPS_TLS_LDM = 163,
|
|
R_MICROMIPS_TLS_DTPREL_HI16 = 164,
|
|
R_MICROMIPS_TLS_DTPREL_LO16 = 165,
|
|
R_MICROMIPS_TLS_GOTTPREL = 166,
|
|
R_MICROMIPS_TLS_TPREL_HI16 = 169,
|
|
R_MICROMIPS_TLS_TPREL_LO16 = 170,
|
|
// microMIPS GP- and PC-relative relocations.
|
|
R_MICROMIPS_GPREL7_S2 = 172,
|
|
R_MICROMIPS_PC23_S2 = 173,
|
|
|
|
// This was a GNU extension used by embedded-PIC. It was co-opted by
|
|
// mips-linux for exception-handling data. GCC stopped using it in
|
|
// May, 2004, then started using it again for compact unwind tables.
|
|
R_MIPS_PC32 = 248,
|
|
R_MIPS_EH = 249,
|
|
// This relocation is used internally by gas.
|
|
R_MIPS_GNU_REL16_S2 = 250,
|
|
// These are GNU extensions to enable C++ vtable garbage collection.
|
|
R_MIPS_GNU_VTINHERIT = 253,
|
|
R_MIPS_GNU_VTENTRY = 254
|
|
};
|
|
|
|
// Processor specific flags for the ELF header e_flags field.
|
|
enum
|
|
{
|
|
// At least one .noreorder directive appears in the source.
|
|
EF_MIPS_NOREORDER = 0x00000001,
|
|
// File contains position independent code.
|
|
EF_MIPS_PIC = 0x00000002,
|
|
// Code in file uses the standard calling sequence for calling
|
|
// position independent code.
|
|
EF_MIPS_CPIC = 0x00000004,
|
|
// ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a.
|
|
EF_MIPS_XGOT = 0x00000008,
|
|
// Code in file uses UCODE (obsolete)
|
|
EF_MIPS_UCODE = 0x00000010,
|
|
// Code in file uses new ABI (-n32 on Irix 6).
|
|
EF_MIPS_ABI2 = 0x00000020,
|
|
// Process the .MIPS.options section first by ld
|
|
EF_MIPS_OPTIONS_FIRST = 0x00000080,
|
|
// Architectural Extensions used by this file
|
|
EF_MIPS_ARCH_ASE = 0x0f000000,
|
|
// Use MDMX multimedia extensions
|
|
EF_MIPS_ARCH_ASE_MDMX = 0x08000000,
|
|
// Use MIPS-16 ISA extensions
|
|
EF_MIPS_ARCH_ASE_M16 = 0x04000000,
|
|
// Use MICROMIPS ISA extensions.
|
|
EF_MIPS_ARCH_ASE_MICROMIPS = 0x02000000,
|
|
// Indicates code compiled for a 64-bit machine in 32-bit mode.
|
|
// (regs are 32-bits wide.)
|
|
EF_MIPS_32BITMODE = 0x00000100,
|
|
// 32-bit machine but FP registers are 64 bit (-mfp64).
|
|
EF_MIPS_FP64 = 0x00000200,
|
|
/// Code in file uses the IEEE 754-2008 NaN encoding convention.
|
|
EF_MIPS_NAN2008 = 0x00000400,
|
|
// MIPS dynamic
|
|
EF_MIPS_DYNAMIC = 0x40
|
|
};
|
|
|
|
// Machine variant if we know it. This field was invented at Cygnus,
|
|
// but it is hoped that other vendors will adopt it. If some standard
|
|
// is developed, this code should be changed to follow it.
|
|
enum
|
|
{
|
|
EF_MIPS_MACH = 0x00FF0000,
|
|
|
|
// Cygnus is choosing values between 80 and 9F;
|
|
// 00 - 7F should be left for a future standard;
|
|
// the rest are open.
|
|
|
|
EF_MIPS_MACH_3900 = 0x00810000,
|
|
EF_MIPS_MACH_4010 = 0x00820000,
|
|
EF_MIPS_MACH_4100 = 0x00830000,
|
|
EF_MIPS_MACH_4650 = 0x00850000,
|
|
EF_MIPS_MACH_4120 = 0x00870000,
|
|
EF_MIPS_MACH_4111 = 0x00880000,
|
|
EF_MIPS_MACH_SB1 = 0x008a0000,
|
|
EF_MIPS_MACH_OCTEON = 0x008b0000,
|
|
EF_MIPS_MACH_XLR = 0x008c0000,
|
|
EF_MIPS_MACH_OCTEON2 = 0x008d0000,
|
|
EF_MIPS_MACH_OCTEON3 = 0x008e0000,
|
|
EF_MIPS_MACH_5400 = 0x00910000,
|
|
EF_MIPS_MACH_5900 = 0x00920000,
|
|
EF_MIPS_MACH_5500 = 0x00980000,
|
|
EF_MIPS_MACH_9000 = 0x00990000,
|
|
EF_MIPS_MACH_LS2E = 0x00A00000,
|
|
EF_MIPS_MACH_LS2F = 0x00A10000,
|
|
EF_MIPS_MACH_GS464 = 0x00A20000,
|
|
EF_MIPS_MACH_GS464E = 0x00A30000,
|
|
EF_MIPS_MACH_GS264E = 0x00A40000,
|
|
|
|
// In order to support backwards compatibility we also
|
|
// define the old versions of some of these constants.
|
|
E_MIPS_MACH_3900 = EF_MIPS_MACH_3900,
|
|
E_MIPS_MACH_4010 = EF_MIPS_MACH_4010,
|
|
E_MIPS_MACH_4100 = EF_MIPS_MACH_4100,
|
|
E_MIPS_MACH_4650 = EF_MIPS_MACH_4650,
|
|
E_MIPS_MACH_4120 = EF_MIPS_MACH_4120,
|
|
E_MIPS_MACH_4111 = EF_MIPS_MACH_4111,
|
|
E_MIPS_MACH_SB1 = EF_MIPS_MACH_SB1,
|
|
E_MIPS_MACH_OCTEON = EF_MIPS_MACH_OCTEON,
|
|
E_MIPS_MACH_XLR = EF_MIPS_MACH_XLR,
|
|
E_MIPS_MACH_OCTEON2 = EF_MIPS_MACH_OCTEON2,
|
|
E_MIPS_MACH_OCTEON3 = EF_MIPS_MACH_OCTEON3,
|
|
E_MIPS_MACH_5400 = EF_MIPS_MACH_5400,
|
|
E_MIPS_MACH_5900 = EF_MIPS_MACH_5900,
|
|
E_MIPS_MACH_5500 = EF_MIPS_MACH_5500,
|
|
E_MIPS_MACH_9000 = EF_MIPS_MACH_9000,
|
|
E_MIPS_MACH_LS2E = EF_MIPS_MACH_LS2E,
|
|
E_MIPS_MACH_LS2F = EF_MIPS_MACH_LS2F,
|
|
E_MIPS_MACH_GS464 = EF_MIPS_MACH_GS464,
|
|
E_MIPS_MACH_GS464E = EF_MIPS_MACH_GS464E,
|
|
E_MIPS_MACH_GS264E = EF_MIPS_MACH_GS264E,
|
|
};
|
|
|
|
// MIPS architecture
|
|
enum
|
|
{
|
|
// Four bit MIPS architecture field.
|
|
EF_MIPS_ARCH = 0xf0000000,
|
|
// -mips1 code.
|
|
EF_MIPS_ARCH_1 = 0x00000000,
|
|
// -mips2 code.
|
|
EF_MIPS_ARCH_2 = 0x10000000,
|
|
// -mips3 code.
|
|
EF_MIPS_ARCH_3 = 0x20000000,
|
|
// -mips4 code.
|
|
EF_MIPS_ARCH_4 = 0x30000000,
|
|
// -mips5 code.
|
|
EF_MIPS_ARCH_5 = 0x40000000,
|
|
// -mips32 code.
|
|
EF_MIPS_ARCH_32 = 0x50000000,
|
|
// -mips64 code.
|
|
EF_MIPS_ARCH_64 = 0x60000000,
|
|
// -mips32r2 code.
|
|
EF_MIPS_ARCH_32R2 = 0x70000000,
|
|
// -mips64r2 code.
|
|
EF_MIPS_ARCH_64R2 = 0x80000000,
|
|
// -mips32r6 code.
|
|
EF_MIPS_ARCH_32R6 = 0x90000000,
|
|
// -mips64r6 code.
|
|
EF_MIPS_ARCH_64R6 = 0xa0000000,
|
|
|
|
// In order to support backwards compatibility we also
|
|
// define the old versions of some of these constants.
|
|
E_MIPS_ARCH_1 = EF_MIPS_ARCH_1,
|
|
E_MIPS_ARCH_2 = EF_MIPS_ARCH_2,
|
|
E_MIPS_ARCH_3 = EF_MIPS_ARCH_3,
|
|
E_MIPS_ARCH_4 = EF_MIPS_ARCH_4,
|
|
E_MIPS_ARCH_5 = EF_MIPS_ARCH_5,
|
|
E_MIPS_ARCH_32 = EF_MIPS_ARCH_32,
|
|
E_MIPS_ARCH_64 = EF_MIPS_ARCH_64,
|
|
E_MIPS_ARCH_32R2 = EF_MIPS_ARCH_32R2,
|
|
E_MIPS_ARCH_64R2 = EF_MIPS_ARCH_64R2,
|
|
E_MIPS_ARCH_32R6 = EF_MIPS_ARCH_32R6,
|
|
E_MIPS_ARCH_64R6 = EF_MIPS_ARCH_64R6,
|
|
|
|
};
|
|
|
|
// Values for the xxx_size bytes of an ABI flags structure.
|
|
enum
|
|
{
|
|
// No registers.
|
|
AFL_REG_NONE = 0x00,
|
|
// 32-bit registers.
|
|
AFL_REG_32 = 0x01,
|
|
// 64-bit registers.
|
|
AFL_REG_64 = 0x02,
|
|
// 128-bit registers.
|
|
AFL_REG_128 = 0x03
|
|
};
|
|
|
|
// Masks for the ases word of an ABI flags structure.
|
|
enum
|
|
{
|
|
// DSP ASE.
|
|
AFL_ASE_DSP = 0x00000001,
|
|
// DSP R2 ASE.
|
|
AFL_ASE_DSPR2 = 0x00000002,
|
|
// Enhanced VA Scheme.
|
|
AFL_ASE_EVA = 0x00000004,
|
|
// MCU (MicroController) ASE.
|
|
AFL_ASE_MCU = 0x00000008,
|
|
// MDMX ASE.
|
|
AFL_ASE_MDMX = 0x00000010,
|
|
// MIPS-3D ASE.
|
|
AFL_ASE_MIPS3D = 0x00000020,
|
|
// MT ASE.
|
|
AFL_ASE_MT = 0x00000040,
|
|
// SmartMIPS ASE.
|
|
AFL_ASE_SMARTMIPS = 0x00000080,
|
|
// VZ ASE.
|
|
AFL_ASE_VIRT = 0x00000100,
|
|
// MSA ASE.
|
|
AFL_ASE_MSA = 0x00000200,
|
|
// MIPS16 ASE.
|
|
AFL_ASE_MIPS16 = 0x00000400,
|
|
// MICROMIPS ASE.
|
|
AFL_ASE_MICROMIPS = 0x00000800,
|
|
// XPA ASE.
|
|
AFL_ASE_XPA = 0x00001000,
|
|
// Loongson EXT ASE.
|
|
AFL_ASE_LOONGSON_EXT = 0x00002000
|
|
};
|
|
|
|
// Values for the isa_ext word of an ABI flags structure.
|
|
enum
|
|
{
|
|
// RMI Xlr instruction.
|
|
AFL_EXT_XLR = 1,
|
|
// Cavium Networks Octeon2.
|
|
AFL_EXT_OCTEON2 = 2,
|
|
// Cavium Networks OcteonP.
|
|
AFL_EXT_OCTEONP = 3,
|
|
// Loongson 3A.
|
|
AFL_EXT_LOONGSON_3A = 4,
|
|
// Cavium Networks Octeon.
|
|
AFL_EXT_OCTEON = 5,
|
|
// MIPS R5900 instruction.
|
|
AFL_EXT_5900 = 6,
|
|
// MIPS R4650 instruction.
|
|
AFL_EXT_4650 = 7,
|
|
// LSI R4010 instruction.
|
|
AFL_EXT_4010 = 8,
|
|
// NEC VR4100 instruction.
|
|
AFL_EXT_4100 = 9,
|
|
// Toshiba R3900 instruction.
|
|
AFL_EXT_3900 = 10,
|
|
// MIPS R10000 instruction.
|
|
AFL_EXT_10000 = 11,
|
|
// Broadcom SB-1 instruction.
|
|
AFL_EXT_SB1 = 12,
|
|
// NEC VR4111/VR4181 instruction.
|
|
AFL_EXT_4111 = 13,
|
|
// NEC VR4120 instruction.
|
|
AFL_EXT_4120 = 14,
|
|
// NEC VR5400 instruction.
|
|
AFL_EXT_5400 = 15,
|
|
// NEC VR5500 instruction.
|
|
AFL_EXT_5500 = 16,
|
|
// ST Microelectronics Loongson 2E.
|
|
AFL_EXT_LOONGSON_2E = 17,
|
|
// ST Microelectronics Loongson 2F.
|
|
AFL_EXT_LOONGSON_2F = 18,
|
|
// Cavium Networks Octeon3.
|
|
AFL_EXT_OCTEON3 = 19
|
|
};
|
|
|
|
// Masks for the flags1 word of an ABI flags structure.
|
|
enum
|
|
{
|
|
// Uses odd single-precision registers.
|
|
AFL_FLAGS1_ODDSPREG = 1
|
|
};
|
|
|
|
// Object attribute tags.
|
|
enum
|
|
{
|
|
// 0-3 are generic.
|
|
// Floating-point ABI used by this object file.
|
|
Tag_GNU_MIPS_ABI_FP = 4,
|
|
// MSA ABI used by this object file.
|
|
Tag_GNU_MIPS_ABI_MSA = 8
|
|
};
|
|
|
|
// Object attribute values.
|
|
enum
|
|
{
|
|
// Values defined for Tag_GNU_MIPS_ABI_FP.
|
|
// Not tagged or not using any ABIs affected by the differences.
|
|
Val_GNU_MIPS_ABI_FP_ANY = 0,
|
|
// Using hard-float -mdouble-float.
|
|
Val_GNU_MIPS_ABI_FP_DOUBLE = 1,
|
|
// Using hard-float -msingle-float.
|
|
Val_GNU_MIPS_ABI_FP_SINGLE = 2,
|
|
// Using soft-float.
|
|
Val_GNU_MIPS_ABI_FP_SOFT = 3,
|
|
// Using -mips32r2 -mfp64.
|
|
Val_GNU_MIPS_ABI_FP_OLD_64 = 4,
|
|
// Using -mfpxx
|
|
Val_GNU_MIPS_ABI_FP_XX = 5,
|
|
// Using -mips32r2 -mfp64.
|
|
Val_GNU_MIPS_ABI_FP_64 = 6,
|
|
// Using -mips32r2 -mfp64 -mno-odd-spreg.
|
|
Val_GNU_MIPS_ABI_FP_64A = 7,
|
|
// This is reserved for backward-compatibility with an earlier
|
|
// implementation of the MIPS NaN2008 functionality.
|
|
Val_GNU_MIPS_ABI_FP_NAN2008 = 8,
|
|
|
|
// Values defined for Tag_GNU_MIPS_ABI_MSA.
|
|
// Not tagged or not using any ABIs affected by the differences.
|
|
Val_GNU_MIPS_ABI_MSA_ANY = 0,
|
|
// Using 128-bit MSA.
|
|
Val_GNU_MIPS_ABI_MSA_128 = 1
|
|
};
|
|
|
|
enum
|
|
{
|
|
// Mask to extract ABI version, not really a flag value.
|
|
EF_MIPS_ABI = 0x0000F000,
|
|
|
|
// The original o32 abi.
|
|
EF_MIPS_ABI_O32 = 0x00001000,
|
|
// O32 extended to work on 64 bit architectures
|
|
EF_MIPS_ABI_O64 = 0x00002000,
|
|
// EABI in 32 bit mode
|
|
EF_MIPS_ABI_EABI32 = 0x00003000,
|
|
// EABI in 64 bit mode
|
|
EF_MIPS_ABI_EABI64 = 0x00004000,
|
|
|
|
// In order to support backwards compatibility we also
|
|
// define the old versions of some of these constants.
|
|
E_MIPS_ABI_O32 = EF_MIPS_ABI_O32,
|
|
E_MIPS_ABI_O64 = EF_MIPS_ABI_O64,
|
|
E_MIPS_ABI_EABI32 = EF_MIPS_ABI_EABI32,
|
|
E_MIPS_ABI_EABI64 = EF_MIPS_ABI_EABI64,
|
|
};
|
|
|
|
// Dynamic section MIPS flags
|
|
enum
|
|
{
|
|
// None
|
|
RHF_NONE = 0x00000000,
|
|
// Use shortcut pointers
|
|
RHF_QUICKSTART = 0x00000001,
|
|
// Hash size not power of two
|
|
RHF_NOTPOT = 0x00000002,
|
|
// Ignore LD_LIBRARY_PATH
|
|
RHF_NO_LIBRARY_REPLACEMENT = 0x00000004
|
|
};
|
|
|
|
// Special values for the st_other field in the symbol table.
|
|
enum
|
|
{
|
|
// Two topmost bits denote the MIPS ISA for .text symbols:
|
|
// + 00 -- standard MIPS code,
|
|
// + 10 -- microMIPS code,
|
|
// + 11 -- MIPS16 code; requires the following two bits to be set too.
|
|
// Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.
|
|
STO_MIPS_ISA = 0xc0,
|
|
|
|
// The mask spanning the rest of MIPS psABI flags. At most one is expected
|
|
// to be set except for STO_MIPS16.
|
|
STO_MIPS_FLAGS = ~(STO_MIPS_ISA | 0x3),
|
|
|
|
// The MIPS psABI was updated in 2008 with support for PLTs and copy
|
|
// relocs. There are therefore two types of nonzero SHN_UNDEF functions:
|
|
// PLT entries and traditional MIPS lazy binding stubs. We mark the former
|
|
// with STO_MIPS_PLT to distinguish them from the latter.
|
|
STO_MIPS_PLT = 0x8,
|
|
|
|
// This value is used to mark PIC functions in an object that mixes
|
|
// PIC and non-PIC. Note that this bit overlaps with STO_MIPS16,
|
|
// although MIPS16 symbols are never considered to be MIPS_PIC.
|
|
STO_MIPS_PIC = 0x20,
|
|
|
|
// This value is used for a mips16 .text symbol.
|
|
STO_MIPS16 = 0xf0,
|
|
|
|
// This value is used for a microMIPS .text symbol. To distinguish from
|
|
// STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The
|
|
// mask is STO_MIPS_ISA.
|
|
STO_MICROMIPS = 0x80
|
|
};
|
|
|
|
// Values for base offsets for thread-local storage
|
|
enum
|
|
{
|
|
TP_OFFSET = 0x7000,
|
|
DTP_OFFSET = 0x8000
|
|
};
|
|
|
|
|
|
bool
|
|
elf_st_is_mips16(unsigned char st_other)
|
|
{ return (st_other & elfcpp::STO_MIPS16) == elfcpp::STO_MIPS16; }
|
|
|
|
bool
|
|
elf_st_is_micromips(unsigned char st_other)
|
|
{ return (st_other & elfcpp::STO_MIPS_ISA) == elfcpp::STO_MICROMIPS; }
|
|
|
|
// Whether the ABI is N32.
|
|
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::EF_MIPS_ARCH_32R6)
|
|
|| ((e_flags & elfcpp::EF_MIPS_ARCH) == elfcpp::EF_MIPS_ARCH_64R6);
|
|
}
|
|
|
|
// Whether the file has microMIPS code.
|
|
bool
|
|
is_micromips(elfcpp::Elf_Word e_flags)
|
|
{ return (e_flags & elfcpp::EF_MIPS_ARCH_ASE_MICROMIPS) != 0; }
|
|
|
|
// Values which may appear in the kind field of an Elf_Options structure.
|
|
enum
|
|
{
|
|
// Undefined.
|
|
ODK_NULL = 0,
|
|
// Register usage and GP value.
|
|
ODK_REGINFO = 1,
|
|
// Exception processing information.
|
|
ODK_EXCEPTIONS = 2,
|
|
// Section padding information.
|
|
ODK_PAD = 3,
|
|
// Hardware workarounds performed.
|
|
ODK_HWPATCH = 4,
|
|
// Fill value used by the linker.
|
|
ODK_FILL = 5,
|
|
// Reserved space for desktop tools.
|
|
ODK_TAGS = 6,
|
|
// Hardware workarounds, AND bits when merging.
|
|
ODK_HWAND = 7,
|
|
// Hardware workarounds, OR bits when merging.
|
|
ODK_HWOR = 8,
|
|
// GP group to use for text/data sections.
|
|
ODK_GP_GROUP = 9,
|
|
// ID information.
|
|
ODK_IDENT = 10
|
|
};
|
|
|
|
} // End namespace elfcpp.
|
|
|
|
#endif // !defined(ELFCPP_MIPS_H)
|