0,0 → 1,1161 |
/* MIPS ELF support for BFD. |
Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
2003, 2004, 2005, 2008, 2009, 2010, 2013 |
Free Software Foundation, Inc. |
|
By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from |
information in the System V Application Binary Interface, MIPS |
Processor Supplement. |
|
This file is part of BFD, the Binary File Descriptor library. |
|
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. */ |
|
/* This file holds definitions specific to the MIPS ELF ABI. Note |
that most of this is not actually implemented by BFD. */ |
|
#ifndef _ELF_MIPS_H |
#define _ELF_MIPS_H |
|
#include "elf/reloc-macros.h" |
|
/* Relocation types. */ |
START_RELOC_NUMBERS (elf_mips_reloc_type) |
RELOC_NUMBER (R_MIPS_NONE, 0) |
RELOC_NUMBER (R_MIPS_16, 1) |
RELOC_NUMBER (R_MIPS_32, 2) /* In Elf 64: alias R_MIPS_ADD */ |
RELOC_NUMBER (R_MIPS_REL32, 3) /* In Elf 64: alias R_MIPS_REL */ |
RELOC_NUMBER (R_MIPS_26, 4) |
RELOC_NUMBER (R_MIPS_HI16, 5) |
RELOC_NUMBER (R_MIPS_LO16, 6) |
RELOC_NUMBER (R_MIPS_GPREL16, 7) /* In Elf 64: alias R_MIPS_GPREL */ |
RELOC_NUMBER (R_MIPS_LITERAL, 8) |
RELOC_NUMBER (R_MIPS_GOT16, 9) /* In Elf 64: alias R_MIPS_GOT */ |
RELOC_NUMBER (R_MIPS_PC16, 10) |
RELOC_NUMBER (R_MIPS_CALL16, 11) /* In Elf 64: alias R_MIPS_CALL */ |
RELOC_NUMBER (R_MIPS_GPREL32, 12) |
/* The remaining relocs are defined on Irix, although they are not |
in the MIPS ELF ABI. */ |
RELOC_NUMBER (R_MIPS_UNUSED1, 13) |
RELOC_NUMBER (R_MIPS_UNUSED2, 14) |
RELOC_NUMBER (R_MIPS_UNUSED3, 15) |
RELOC_NUMBER (R_MIPS_SHIFT5, 16) |
RELOC_NUMBER (R_MIPS_SHIFT6, 17) |
RELOC_NUMBER (R_MIPS_64, 18) |
RELOC_NUMBER (R_MIPS_GOT_DISP, 19) |
RELOC_NUMBER (R_MIPS_GOT_PAGE, 20) |
RELOC_NUMBER (R_MIPS_GOT_OFST, 21) |
RELOC_NUMBER (R_MIPS_GOT_HI16, 22) |
RELOC_NUMBER (R_MIPS_GOT_LO16, 23) |
RELOC_NUMBER (R_MIPS_SUB, 24) |
RELOC_NUMBER (R_MIPS_INSERT_A, 25) |
RELOC_NUMBER (R_MIPS_INSERT_B, 26) |
RELOC_NUMBER (R_MIPS_DELETE, 27) |
RELOC_NUMBER (R_MIPS_HIGHER, 28) |
RELOC_NUMBER (R_MIPS_HIGHEST, 29) |
RELOC_NUMBER (R_MIPS_CALL_HI16, 30) |
RELOC_NUMBER (R_MIPS_CALL_LO16, 31) |
RELOC_NUMBER (R_MIPS_SCN_DISP, 32) |
RELOC_NUMBER (R_MIPS_REL16, 33) |
RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34) |
RELOC_NUMBER (R_MIPS_PJUMP, 35) |
RELOC_NUMBER (R_MIPS_RELGOT, 36) |
RELOC_NUMBER (R_MIPS_JALR, 37) |
/* TLS relocations. */ |
RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38) |
RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39) |
RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40) |
RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41) |
RELOC_NUMBER (R_MIPS_TLS_GD, 42) |
RELOC_NUMBER (R_MIPS_TLS_LDM, 43) |
RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44) |
RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45) |
RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46) |
RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47) |
RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48) |
RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49) |
RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50) |
RELOC_NUMBER (R_MIPS_GLOB_DAT, 51) |
FAKE_RELOC (R_MIPS_max, 52) |
/* These relocs are used for the mips16. */ |
FAKE_RELOC (R_MIPS16_min, 100) |
RELOC_NUMBER (R_MIPS16_26, 100) |
RELOC_NUMBER (R_MIPS16_GPREL, 101) |
RELOC_NUMBER (R_MIPS16_GOT16, 102) |
RELOC_NUMBER (R_MIPS16_CALL16, 103) |
RELOC_NUMBER (R_MIPS16_HI16, 104) |
RELOC_NUMBER (R_MIPS16_LO16, 105) |
RELOC_NUMBER (R_MIPS16_TLS_GD, 106) |
RELOC_NUMBER (R_MIPS16_TLS_LDM, 107) |
RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108) |
RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109) |
RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110) |
RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111) |
RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112) |
FAKE_RELOC (R_MIPS16_max, 113) |
/* These relocations are specific to VxWorks. */ |
RELOC_NUMBER (R_MIPS_COPY, 126) |
RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127) |
|
/* These relocations are specific to microMIPS. */ |
FAKE_RELOC (R_MICROMIPS_min, 130) |
RELOC_NUMBER (R_MICROMIPS_26_S1, 133) |
RELOC_NUMBER (R_MICROMIPS_HI16, 134) |
RELOC_NUMBER (R_MICROMIPS_LO16, 135) |
RELOC_NUMBER (R_MICROMIPS_GPREL16, 136) /* In Elf 64: |
alias R_MICROMIPS_GPREL */ |
RELOC_NUMBER (R_MICROMIPS_LITERAL, 137) |
RELOC_NUMBER (R_MICROMIPS_GOT16, 138) /* In Elf 64: |
alias R_MICROMIPS_GOT */ |
RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139) |
RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140) |
RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141) |
RELOC_NUMBER (R_MICROMIPS_CALL16, 142) /* In Elf 64: |
alias R_MICROMIPS_CALL */ |
RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145) |
RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146) |
RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147) |
RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148) |
RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149) |
RELOC_NUMBER (R_MICROMIPS_SUB, 150) |
RELOC_NUMBER (R_MICROMIPS_HIGHER, 151) |
RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152) |
RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153) |
RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154) |
RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155) |
RELOC_NUMBER (R_MICROMIPS_JALR, 156) |
RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157) |
/* TLS relocations. */ |
RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162) |
RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163) |
RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164) |
RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165) |
RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166) |
RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169) |
RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170) |
/* microMIPS GP- and PC-relative relocations. */ |
RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172) |
RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173) |
FAKE_RELOC (R_MICROMIPS_max, 174) |
|
/* 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. */ |
RELOC_NUMBER (R_MIPS_PC32, 248) |
RELOC_NUMBER (R_MIPS_EH, 249) |
/* FIXME: this relocation is used internally by gas. */ |
RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250) |
/* These are GNU extensions to enable C++ vtable garbage collection. */ |
RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253) |
RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254) |
END_RELOC_NUMBERS (R_MIPS_maxext) |
|
/* Processor specific flags for the ELF header e_flags field. */ |
|
/* At least one .noreorder directive appears in the source. */ |
#define EF_MIPS_NOREORDER 0x00000001 |
|
/* File contains position independent code. */ |
#define EF_MIPS_PIC 0x00000002 |
|
/* Code in file uses the standard calling sequence for calling |
position independent code. */ |
#define EF_MIPS_CPIC 0x00000004 |
|
/* ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a. */ |
#define EF_MIPS_XGOT 0x00000008 |
|
/* Code in file uses UCODE (obsolete) */ |
#define EF_MIPS_UCODE 0x00000010 |
|
/* Code in file uses new ABI (-n32 on Irix 6). */ |
#define EF_MIPS_ABI2 0x00000020 |
|
/* Process the .MIPS.options section first by ld */ |
#define EF_MIPS_OPTIONS_FIRST 0x00000080 |
|
/* Indicates code compiled for a 64-bit machine in 32-bit mode |
(regs are 32-bits wide). */ |
#define EF_MIPS_32BITMODE 0x00000100 |
|
/* 32-bit machine but FP registers are 64 bit (-mfp64). */ |
#define EF_MIPS_FP64 0x00000200 |
|
/* Code in file uses the IEEE 754-2008 NaN encoding convention. */ |
#define EF_MIPS_NAN2008 0x00000400 |
|
/* Architectural Extensions used by this file */ |
#define EF_MIPS_ARCH_ASE 0x0f000000 |
|
/* Use MDMX multimedia extensions */ |
#define EF_MIPS_ARCH_ASE_MDMX 0x08000000 |
|
/* Use MIPS-16 ISA extensions */ |
#define EF_MIPS_ARCH_ASE_M16 0x04000000 |
|
/* Use MICROMIPS ISA extensions. */ |
#define EF_MIPS_ARCH_ASE_MICROMIPS 0x02000000 |
|
/* Four bit MIPS architecture field. */ |
#define EF_MIPS_ARCH 0xf0000000 |
|
/* -mips1 code. */ |
#define E_MIPS_ARCH_1 0x00000000 |
|
/* -mips2 code. */ |
#define E_MIPS_ARCH_2 0x10000000 |
|
/* -mips3 code. */ |
#define E_MIPS_ARCH_3 0x20000000 |
|
/* -mips4 code. */ |
#define E_MIPS_ARCH_4 0x30000000 |
|
/* -mips5 code. */ |
#define E_MIPS_ARCH_5 0x40000000 |
|
/* -mips32 code. */ |
#define E_MIPS_ARCH_32 0x50000000 |
|
/* -mips64 code. */ |
#define E_MIPS_ARCH_64 0x60000000 |
|
/* -mips32r2 code. */ |
#define E_MIPS_ARCH_32R2 0x70000000 |
|
/* -mips64r2 code. */ |
#define E_MIPS_ARCH_64R2 0x80000000 |
|
/* The ABI of the file. Also see EF_MIPS_ABI2 above. */ |
#define EF_MIPS_ABI 0x0000F000 |
|
/* The original o32 abi. */ |
#define E_MIPS_ABI_O32 0x00001000 |
|
/* O32 extended to work on 64 bit architectures */ |
#define E_MIPS_ABI_O64 0x00002000 |
|
/* EABI in 32 bit mode */ |
#define E_MIPS_ABI_EABI32 0x00003000 |
|
/* EABI in 64 bit mode */ |
#define E_MIPS_ABI_EABI64 0x00004000 |
|
|
/* 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. */ |
|
#define 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. */ |
|
#define E_MIPS_MACH_3900 0x00810000 |
#define E_MIPS_MACH_4010 0x00820000 |
#define E_MIPS_MACH_4100 0x00830000 |
#define E_MIPS_MACH_4650 0x00850000 |
#define E_MIPS_MACH_4120 0x00870000 |
#define E_MIPS_MACH_4111 0x00880000 |
#define E_MIPS_MACH_SB1 0x008a0000 |
#define E_MIPS_MACH_OCTEON 0x008b0000 |
#define E_MIPS_MACH_XLR 0x008c0000 |
#define E_MIPS_MACH_OCTEON2 0x008d0000 |
#define E_MIPS_MACH_5400 0x00910000 |
#define E_MIPS_MACH_5900 0x00920000 |
#define E_MIPS_MACH_5500 0x00980000 |
#define E_MIPS_MACH_9000 0x00990000 |
#define E_MIPS_MACH_LS2E 0x00A00000 |
#define E_MIPS_MACH_LS2F 0x00A10000 |
#define E_MIPS_MACH_LS3A 0x00A20000 |
|
/* Processor specific section indices. These sections do not actually |
exist. Symbols with a st_shndx field corresponding to one of these |
values have a special meaning. */ |
|
/* Defined and allocated common symbol. Value is virtual address. If |
relocated, alignment must be preserved. */ |
#define SHN_MIPS_ACOMMON SHN_LORESERVE |
|
/* Defined and allocated text symbol. Value is virtual address. |
Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ |
#define SHN_MIPS_TEXT (SHN_LORESERVE + 1) |
|
/* Defined and allocated data symbol. Value is virtual address. |
Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ |
#define SHN_MIPS_DATA (SHN_LORESERVE + 2) |
|
/* Small common symbol. */ |
#define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) |
|
/* Small undefined symbol. */ |
#define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) |
|
/* Processor specific section types. */ |
|
/* Section contains the set of dynamic shared objects used when |
statically linking. */ |
#define SHT_MIPS_LIBLIST 0x70000000 |
|
/* I'm not sure what this is, but it's used on Irix 5. */ |
#define SHT_MIPS_MSYM 0x70000001 |
|
/* Section contains list of symbols whose definitions conflict with |
symbols defined in shared objects. */ |
#define SHT_MIPS_CONFLICT 0x70000002 |
|
/* Section contains the global pointer table. */ |
#define SHT_MIPS_GPTAB 0x70000003 |
|
/* Section contains microcode information. The exact format is |
unspecified. */ |
#define SHT_MIPS_UCODE 0x70000004 |
|
/* Section contains some sort of debugging information. The exact |
format is unspecified. It's probably ECOFF symbols. */ |
#define SHT_MIPS_DEBUG 0x70000005 |
|
/* Section contains register usage information. */ |
#define SHT_MIPS_REGINFO 0x70000006 |
|
/* ??? */ |
#define SHT_MIPS_PACKAGE 0x70000007 |
|
/* ??? */ |
#define SHT_MIPS_PACKSYM 0x70000008 |
|
/* ??? */ |
#define SHT_MIPS_RELD 0x70000009 |
|
/* Section contains interface information. */ |
#define SHT_MIPS_IFACE 0x7000000b |
|
/* Section contains description of contents of another section. */ |
#define SHT_MIPS_CONTENT 0x7000000c |
|
/* Section contains miscellaneous options. */ |
#define SHT_MIPS_OPTIONS 0x7000000d |
|
/* ??? */ |
#define SHT_MIPS_SHDR 0x70000010 |
|
/* ??? */ |
#define SHT_MIPS_FDESC 0x70000011 |
|
/* ??? */ |
#define SHT_MIPS_EXTSYM 0x70000012 |
|
/* ??? */ |
#define SHT_MIPS_DENSE 0x70000013 |
|
/* ??? */ |
#define SHT_MIPS_PDESC 0x70000014 |
|
/* ??? */ |
#define SHT_MIPS_LOCSYM 0x70000015 |
|
/* ??? */ |
#define SHT_MIPS_AUXSYM 0x70000016 |
|
/* ??? */ |
#define SHT_MIPS_OPTSYM 0x70000017 |
|
/* ??? */ |
#define SHT_MIPS_LOCSTR 0x70000018 |
|
/* ??? */ |
#define SHT_MIPS_LINE 0x70000019 |
|
/* ??? */ |
#define SHT_MIPS_RFDESC 0x7000001a |
|
/* Delta C++: symbol table */ |
#define SHT_MIPS_DELTASYM 0x7000001b |
|
/* Delta C++: instance table */ |
#define SHT_MIPS_DELTAINST 0x7000001c |
|
/* Delta C++: class table */ |
#define SHT_MIPS_DELTACLASS 0x7000001d |
|
/* DWARF debugging section. */ |
#define SHT_MIPS_DWARF 0x7000001e |
|
/* Delta C++: declarations */ |
#define SHT_MIPS_DELTADECL 0x7000001f |
|
/* List of libraries the binary depends on. Includes a time stamp, version |
number. */ |
#define SHT_MIPS_SYMBOL_LIB 0x70000020 |
|
/* Events section. */ |
#define SHT_MIPS_EVENTS 0x70000021 |
|
/* ??? */ |
#define SHT_MIPS_TRANSLATE 0x70000022 |
|
/* Special pixie sections */ |
#define SHT_MIPS_PIXIE 0x70000023 |
|
/* Address translation table (for debug info) */ |
#define SHT_MIPS_XLATE 0x70000024 |
|
/* SGI internal address translation table (for debug info) */ |
#define SHT_MIPS_XLATE_DEBUG 0x70000025 |
|
/* Intermediate code */ |
#define SHT_MIPS_WHIRL 0x70000026 |
|
/* C++ exception handling region info */ |
#define SHT_MIPS_EH_REGION 0x70000027 |
|
/* Obsolete address translation table (for debug info) */ |
#define SHT_MIPS_XLATE_OLD 0x70000028 |
|
/* Runtime procedure descriptor table exception information (ucode) ??? */ |
#define SHT_MIPS_PDR_EXCEPTION 0x70000029 |
|
|
/* A section of type SHT_MIPS_LIBLIST contains an array of the |
following structure. The sh_link field is the section index of the |
string table. The sh_info field is the number of entries in the |
section. */ |
typedef struct |
{ |
/* String table index for name of shared object. */ |
unsigned long l_name; |
/* Time stamp. */ |
unsigned long l_time_stamp; |
/* Checksum of symbol names and common sizes. */ |
unsigned long l_checksum; |
/* String table index for version. */ |
unsigned long l_version; |
/* Flags. */ |
unsigned long l_flags; |
} Elf32_Lib; |
|
/* The external version of Elf32_Lib. */ |
typedef struct |
{ |
unsigned char l_name[4]; |
unsigned char l_time_stamp[4]; |
unsigned char l_checksum[4]; |
unsigned char l_version[4]; |
unsigned char l_flags[4]; |
} Elf32_External_Lib; |
|
/* The l_flags field of an Elf32_Lib structure may contain the |
following flags. */ |
|
/* Require an exact match at runtime. */ |
#define LL_EXACT_MATCH 0x00000001 |
|
/* Ignore version incompatibilities at runtime. */ |
#define LL_IGNORE_INT_VER 0x00000002 |
|
/* Require matching minor version number. */ |
#define LL_REQUIRE_MINOR 0x00000004 |
|
/* ??? */ |
#define LL_EXPORTS 0x00000008 |
|
/* Delay loading of this library until really needed. */ |
#define LL_DELAY_LOAD 0x00000010 |
|
/* ??? Delta C++ stuff ??? */ |
#define LL_DELTA 0x00000020 |
|
|
/* A section of type SHT_MIPS_CONFLICT is an array of indices into the |
.dynsym section. Each element has the following type. */ |
typedef unsigned long Elf32_Conflict; |
typedef unsigned char Elf32_External_Conflict[4]; |
|
typedef unsigned long Elf64_Conflict; |
typedef unsigned char Elf64_External_Conflict[8]; |
|
/* A section of type SHT_MIPS_GPTAB contains information about how |
much GP space would be required for different -G arguments. This |
information is only used so that the linker can provide informative |
suggestions as to the best -G value to use. The sh_info field is |
the index of the section for which this information applies. The |
contents of the section are an array of the following union. The |
first element uses the gt_header field. The remaining elements use |
the gt_entry field. */ |
typedef union |
{ |
struct |
{ |
/* -G value actually used for this object file. */ |
unsigned long gt_current_g_value; |
/* Unused. */ |
unsigned long gt_unused; |
} gt_header; |
struct |
{ |
/* If this -G argument has been used... */ |
unsigned long gt_g_value; |
/* ...this many GP section bytes would be required. */ |
unsigned long gt_bytes; |
} gt_entry; |
} Elf32_gptab; |
|
/* The external version of Elf32_gptab. */ |
|
typedef union |
{ |
struct |
{ |
unsigned char gt_current_g_value[4]; |
unsigned char gt_unused[4]; |
} gt_header; |
struct |
{ |
unsigned char gt_g_value[4]; |
unsigned char gt_bytes[4]; |
} gt_entry; |
} Elf32_External_gptab; |
|
/* A section of type SHT_MIPS_REGINFO contains the following |
structure. */ |
typedef struct |
{ |
/* Mask of general purpose registers used. */ |
unsigned long ri_gprmask; |
/* Mask of co-processor registers used. */ |
unsigned long ri_cprmask[4]; |
/* GP register value for this object file. */ |
long ri_gp_value; |
} Elf32_RegInfo; |
|
/* The external version of the Elf_RegInfo structure. */ |
typedef struct |
{ |
unsigned char ri_gprmask[4]; |
unsigned char ri_cprmask[4][4]; |
unsigned char ri_gp_value[4]; |
} Elf32_External_RegInfo; |
|
/* MIPS ELF .reginfo swapping routines. */ |
extern void bfd_mips_elf32_swap_reginfo_in |
(bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *); |
extern void bfd_mips_elf32_swap_reginfo_out |
(bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *); |
|
/* Processor specific section flags. */ |
|
/* This section must be in the global data area. */ |
#define SHF_MIPS_GPREL 0x10000000 |
|
/* This section should be merged. */ |
#define SHF_MIPS_MERGE 0x20000000 |
|
/* This section contains address data of size implied by section |
element size. */ |
#define SHF_MIPS_ADDR 0x40000000 |
|
/* This section contains string data. */ |
#define SHF_MIPS_STRING 0x80000000 |
|
/* This section may not be stripped. */ |
#define SHF_MIPS_NOSTRIP 0x08000000 |
|
/* This section is local to threads. */ |
#define SHF_MIPS_LOCAL 0x04000000 |
|
/* Linker should generate implicit weak names for this section. */ |
#define SHF_MIPS_NAMES 0x02000000 |
|
/* Section contais text/data which may be replicated in other sections. |
Linker should retain only one copy. */ |
#define SHF_MIPS_NODUPES 0x01000000 |
|
/* Processor specific program header types. */ |
|
/* Register usage information. Identifies one .reginfo section. */ |
#define PT_MIPS_REGINFO 0x70000000 |
|
/* Runtime procedure table. */ |
#define PT_MIPS_RTPROC 0x70000001 |
|
/* .MIPS.options section. */ |
#define PT_MIPS_OPTIONS 0x70000002 |
|
/* Processor specific dynamic array tags. */ |
|
/* 32 bit version number for runtime linker interface. */ |
#define DT_MIPS_RLD_VERSION 0x70000001 |
|
/* Time stamp. */ |
#define DT_MIPS_TIME_STAMP 0x70000002 |
|
/* Checksum of external strings and common sizes. */ |
#define DT_MIPS_ICHECKSUM 0x70000003 |
|
/* Index of version string in string table. */ |
#define DT_MIPS_IVERSION 0x70000004 |
|
/* 32 bits of flags. */ |
#define DT_MIPS_FLAGS 0x70000005 |
|
/* Base address of the segment. */ |
#define DT_MIPS_BASE_ADDRESS 0x70000006 |
|
/* ??? */ |
#define DT_MIPS_MSYM 0x70000007 |
|
/* Address of .conflict section. */ |
#define DT_MIPS_CONFLICT 0x70000008 |
|
/* Address of .liblist section. */ |
#define DT_MIPS_LIBLIST 0x70000009 |
|
/* Number of local global offset table entries. */ |
#define DT_MIPS_LOCAL_GOTNO 0x7000000a |
|
/* Number of entries in the .conflict section. */ |
#define DT_MIPS_CONFLICTNO 0x7000000b |
|
/* Number of entries in the .liblist section. */ |
#define DT_MIPS_LIBLISTNO 0x70000010 |
|
/* Number of entries in the .dynsym section. */ |
#define DT_MIPS_SYMTABNO 0x70000011 |
|
/* Index of first external dynamic symbol not referenced locally. */ |
#define DT_MIPS_UNREFEXTNO 0x70000012 |
|
/* Index of first dynamic symbol in global offset table. */ |
#define DT_MIPS_GOTSYM 0x70000013 |
|
/* Number of page table entries in global offset table. */ |
#define DT_MIPS_HIPAGENO 0x70000014 |
|
/* Address of run time loader map, used for debugging. */ |
#define DT_MIPS_RLD_MAP 0x70000016 |
|
/* Delta C++ class definition. */ |
#define DT_MIPS_DELTA_CLASS 0x70000017 |
|
/* Number of entries in DT_MIPS_DELTA_CLASS. */ |
#define DT_MIPS_DELTA_CLASS_NO 0x70000018 |
|
/* Delta C++ class instances. */ |
#define DT_MIPS_DELTA_INSTANCE 0x70000019 |
|
/* Number of entries in DT_MIPS_DELTA_INSTANCE. */ |
#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a |
|
/* Delta relocations. */ |
#define DT_MIPS_DELTA_RELOC 0x7000001b |
|
/* Number of entries in DT_MIPS_DELTA_RELOC. */ |
#define DT_MIPS_DELTA_RELOC_NO 0x7000001c |
|
/* Delta symbols that Delta relocations refer to. */ |
#define DT_MIPS_DELTA_SYM 0x7000001d |
|
/* Number of entries in DT_MIPS_DELTA_SYM. */ |
#define DT_MIPS_DELTA_SYM_NO 0x7000001e |
|
/* Delta symbols that hold class declarations. */ |
#define DT_MIPS_DELTA_CLASSSYM 0x70000020 |
|
/* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ |
#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 |
|
/* Flags indicating information about C++ flavor. */ |
#define DT_MIPS_CXX_FLAGS 0x70000022 |
|
/* Pixie information (???). */ |
#define DT_MIPS_PIXIE_INIT 0x70000023 |
|
/* Address of .MIPS.symlib */ |
#define DT_MIPS_SYMBOL_LIB 0x70000024 |
|
/* The GOT index of the first PTE for a segment */ |
#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 |
|
/* The GOT index of the first PTE for a local symbol */ |
#define DT_MIPS_LOCAL_GOTIDX 0x70000026 |
|
/* The GOT index of the first PTE for a hidden symbol */ |
#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 |
|
/* The GOT index of the first PTE for a protected symbol */ |
#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 |
|
/* Address of `.MIPS.options'. */ |
#define DT_MIPS_OPTIONS 0x70000029 |
|
/* Address of `.interface'. */ |
#define DT_MIPS_INTERFACE 0x7000002a |
|
/* ??? */ |
#define DT_MIPS_DYNSTR_ALIGN 0x7000002b |
|
/* Size of the .interface section. */ |
#define DT_MIPS_INTERFACE_SIZE 0x7000002c |
|
/* Size of rld_text_resolve function stored in the GOT. */ |
#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d |
|
/* Default suffix of DSO to be added by rld on dlopen() calls. */ |
#define DT_MIPS_PERF_SUFFIX 0x7000002e |
|
/* Size of compact relocation section (O32). */ |
#define DT_MIPS_COMPACT_SIZE 0x7000002f |
|
/* GP value for auxiliary GOTs. */ |
#define DT_MIPS_GP_VALUE 0x70000030 |
|
/* Address of auxiliary .dynamic. */ |
#define DT_MIPS_AUX_DYNAMIC 0x70000031 |
|
/* Address of the base of the PLTGOT. */ |
#define DT_MIPS_PLTGOT 0x70000032 |
|
/* Points to the base of a writable PLT. */ |
#define DT_MIPS_RWPLT 0x70000034 |
|
/* Flags which may appear in a DT_MIPS_FLAGS entry. */ |
|
/* No flags. */ |
#define RHF_NONE 0x00000000 |
|
/* Uses shortcut pointers. */ |
#define RHF_QUICKSTART 0x00000001 |
|
/* Hash size is not a power of two. */ |
#define RHF_NOTPOT 0x00000002 |
|
/* Ignore LD_LIBRARY_PATH. */ |
#define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 |
|
/* DSO address may not be relocated. */ |
#define RHF_NO_MOVE 0x00000008 |
|
/* SGI specific features. */ |
#define RHF_SGI_ONLY 0x00000010 |
|
/* Guarantee that .init will finish executing before any non-init |
code in DSO is called. */ |
#define RHF_GUARANTEE_INIT 0x00000020 |
|
/* Contains Delta C++ code. */ |
#define RHF_DELTA_C_PLUS_PLUS 0x00000040 |
|
/* Guarantee that .init will start executing before any non-init |
code in DSO is called. */ |
#define RHF_GUARANTEE_START_INIT 0x00000080 |
|
/* Generated by pixie. */ |
#define RHF_PIXIE 0x00000100 |
|
/* Delay-load DSO by default. */ |
#define RHF_DEFAULT_DELAY_LOAD 0x00000200 |
|
/* Object may be requickstarted */ |
#define RHF_REQUICKSTART 0x00000400 |
|
/* Object has been requickstarted */ |
#define RHF_REQUICKSTARTED 0x00000800 |
|
/* Generated by cord. */ |
#define RHF_CORD 0x00001000 |
|
/* Object contains no unresolved undef symbols. */ |
#define RHF_NO_UNRES_UNDEF 0x00002000 |
|
/* Symbol table is in a safe order. */ |
#define RHF_RLD_ORDER_SAFE 0x00004000 |
|
/* Special values for the st_other field in the symbol table. These |
are used in an Irix 5 dynamic symbol table. */ |
|
#define STO_DEFAULT STV_DEFAULT |
#define STO_INTERNAL STV_INTERNAL |
#define STO_HIDDEN STV_HIDDEN |
#define STO_PROTECTED STV_PROTECTED |
|
/* 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. See below |
for details. */ |
#define STO_MIPS_ISA (3 << 6) |
|
/* The mask spanning the rest of MIPS psABI flags. At most one is expected |
to be set except for STO_MIPS16. */ |
#define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) |
|
/* 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. */ |
#define STO_MIPS_PLT 0x8 |
#define ELF_ST_IS_MIPS_PLT(other) \ |
((ELF_ST_IS_MIPS16 (other) \ |
? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \ |
: ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT) |
#define ELF_ST_SET_MIPS_PLT(other) \ |
((ELF_ST_IS_MIPS16 (other) \ |
? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \ |
: ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT) |
|
/* 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. */ |
#define STO_MIPS_PIC 0x20 |
#define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) |
#define ELF_ST_SET_MIPS_PIC(other) \ |
((ELF_ST_IS_MIPS16 (other) \ |
? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS)) \ |
: ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC) |
|
/* This value is used for a mips16 .text symbol. */ |
#define STO_MIPS16 0xf0 |
#define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) |
#define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) |
|
/* 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. */ |
#define STO_MICROMIPS (2 << 6) |
#define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) |
#define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) |
|
/* Whether code compression (either of the MIPS16 or the microMIPS ASEs) |
has been indicated for a .text symbol. */ |
#define ELF_ST_IS_COMPRESSED(other) \ |
(ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) |
|
/* This bit is used on Irix to indicate a symbol whose definition |
is optional - if, at final link time, it cannot be found, no |
error message should be produced. */ |
#define STO_OPTIONAL (1 << 2) |
/* A macro to examine the STO_OPTIONAL bit. */ |
#define ELF_MIPS_IS_OPTIONAL(other) ((other) & STO_OPTIONAL) |
|
/* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each |
relocation entry specifies up to three actual relocations, all at |
the same address. The first relocation which required a symbol |
uses the symbol in the r_sym field. The second relocation which |
requires a symbol uses the symbol in the r_ssym field. If all |
three relocations require a symbol, the third one uses a zero |
value. */ |
|
/* An entry in a 64 bit SHT_REL section. */ |
|
typedef struct |
{ |
/* Address of relocation. */ |
unsigned char r_offset[8]; |
/* Symbol index. */ |
unsigned char r_sym[4]; |
/* Special symbol. */ |
unsigned char r_ssym[1]; |
/* Third relocation. */ |
unsigned char r_type3[1]; |
/* Second relocation. */ |
unsigned char r_type2[1]; |
/* First relocation. */ |
unsigned char r_type[1]; |
} Elf64_Mips_External_Rel; |
|
typedef struct |
{ |
/* Address of relocation. */ |
bfd_vma r_offset; |
/* Symbol index. */ |
unsigned long r_sym; |
/* Special symbol. */ |
unsigned char r_ssym; |
/* Third relocation. */ |
unsigned char r_type3; |
/* Second relocation. */ |
unsigned char r_type2; |
/* First relocation. */ |
unsigned char r_type; |
} Elf64_Mips_Internal_Rel; |
|
/* An entry in a 64 bit SHT_RELA section. */ |
|
typedef struct |
{ |
/* Address of relocation. */ |
unsigned char r_offset[8]; |
/* Symbol index. */ |
unsigned char r_sym[4]; |
/* Special symbol. */ |
unsigned char r_ssym[1]; |
/* Third relocation. */ |
unsigned char r_type3[1]; |
/* Second relocation. */ |
unsigned char r_type2[1]; |
/* First relocation. */ |
unsigned char r_type[1]; |
/* Addend. */ |
unsigned char r_addend[8]; |
} Elf64_Mips_External_Rela; |
|
typedef struct |
{ |
/* Address of relocation. */ |
bfd_vma r_offset; |
/* Symbol index. */ |
unsigned long r_sym; |
/* Special symbol. */ |
unsigned char r_ssym; |
/* Third relocation. */ |
unsigned char r_type3; |
/* Second relocation. */ |
unsigned char r_type2; |
/* First relocation. */ |
unsigned char r_type; |
/* Addend. */ |
bfd_signed_vma r_addend; |
} Elf64_Mips_Internal_Rela; |
|
/* MIPS ELF 64 relocation info access macros. */ |
#define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) |
#define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) |
#define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) |
#define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) |
|
/* Values found in the r_ssym field of a relocation entry. */ |
|
/* No relocation. */ |
#define RSS_UNDEF 0 |
|
/* Value of GP. */ |
#define RSS_GP 1 |
|
/* Value of GP in object being relocated. */ |
#define RSS_GP0 2 |
|
/* Address of location being relocated. */ |
#define RSS_LOC 3 |
|
/* A SHT_MIPS_OPTIONS section contains a series of options, each of |
which starts with this header. */ |
|
typedef struct |
{ |
/* Type of option. */ |
unsigned char kind[1]; |
/* Size of option descriptor, including header. */ |
unsigned char size[1]; |
/* Section index of affected section, or 0 for global option. */ |
unsigned char section[2]; |
/* Information specific to this kind of option. */ |
unsigned char info[4]; |
} Elf_External_Options; |
|
typedef struct |
{ |
/* Type of option. */ |
unsigned char kind; |
/* Size of option descriptor, including header. */ |
unsigned char size; |
/* Section index of affected section, or 0 for global option. */ |
unsigned short section; |
/* Information specific to this kind of option. */ |
unsigned long info; |
} Elf_Internal_Options; |
|
/* MIPS ELF option header swapping routines. */ |
extern void bfd_mips_elf_swap_options_in |
(bfd *, const Elf_External_Options *, Elf_Internal_Options *); |
extern void bfd_mips_elf_swap_options_out |
(bfd *, const Elf_Internal_Options *, Elf_External_Options *); |
|
/* Values which may appear in the kind field of an Elf_Options |
structure. */ |
|
/* Undefined. */ |
#define ODK_NULL 0 |
|
/* Register usage and GP value. */ |
#define ODK_REGINFO 1 |
|
/* Exception processing information. */ |
#define ODK_EXCEPTIONS 2 |
|
/* Section padding information. */ |
#define ODK_PAD 3 |
|
/* Hardware workarounds performed. */ |
#define ODK_HWPATCH 4 |
|
/* Fill value used by the linker. */ |
#define ODK_FILL 5 |
|
/* Reserved space for desktop tools. */ |
#define ODK_TAGS 6 |
|
/* Hardware workarounds, AND bits when merging. */ |
#define ODK_HWAND 7 |
|
/* Hardware workarounds, OR bits when merging. */ |
#define ODK_HWOR 8 |
|
/* GP group to use for text/data sections. */ |
#define ODK_GP_GROUP 9 |
|
/* ID information. */ |
#define ODK_IDENT 10 |
|
/* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo |
structure. In the 64 bit ABI, it is the following structure. The |
info field of the options header is not used. */ |
|
typedef struct |
{ |
/* Mask of general purpose registers used. */ |
unsigned char ri_gprmask[4]; |
/* Padding. */ |
unsigned char ri_pad[4]; |
/* Mask of co-processor registers used. */ |
unsigned char ri_cprmask[4][4]; |
/* GP register value for this object file. */ |
unsigned char ri_gp_value[8]; |
} Elf64_External_RegInfo; |
|
typedef struct |
{ |
/* Mask of general purpose registers used. */ |
unsigned long ri_gprmask; |
/* Padding. */ |
unsigned long ri_pad; |
/* Mask of co-processor registers used. */ |
unsigned long ri_cprmask[4]; |
/* GP register value for this object file. */ |
bfd_vma ri_gp_value; |
} Elf64_Internal_RegInfo; |
|
typedef struct |
{ |
/* The hash value computed from the name of the corresponding |
dynamic symbol. */ |
unsigned char ms_hash_value[4]; |
/* Contains both the dynamic relocation index and the symbol flags |
field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used |
to access the individual values. The dynamic relocation index |
identifies the first entry in the .rel.dyn section that |
references the dynamic symbol corresponding to this msym entry. |
If the index is 0, no dynamic relocations are associated with the |
symbol. The symbol flags field is reserved for future use. */ |
unsigned char ms_info[4]; |
} Elf32_External_Msym; |
|
typedef struct |
{ |
/* The hash value computed from the name of the corresponding |
dynamic symbol. */ |
unsigned long ms_hash_value; |
/* Contains both the dynamic relocation index and the symbol flags |
field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used |
to access the individual values. The dynamic relocation index |
identifies the first entry in the .rel.dyn section that |
references the dynamic symbol corresponding to this msym entry. |
If the index is 0, no dynamic relocations are associated with the |
symbol. The symbol flags field is reserved for future use. */ |
unsigned long ms_info; |
} Elf32_Internal_Msym; |
|
#define ELF32_MS_REL_INDEX(i) ((i) >> 8) |
#define ELF32_MS_FLAGS(i) (i) & 0xff) |
#define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) |
|
/* MIPS ELF reginfo swapping routines. */ |
extern void bfd_mips_elf64_swap_reginfo_in |
(bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *); |
extern void bfd_mips_elf64_swap_reginfo_out |
(bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *); |
|
/* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ |
#define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ |
#define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ |
#define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ |
#define OEX_SMM 0x20000 /* Force sequential memory mode. */ |
#define OEX_FPDBUG 0x40000 /* Force precise floating-point |
exceptions (debug mode). */ |
#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ |
|
/* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ |
#define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ |
#define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ |
#define OEX_FPU_OFLO 0x04 /* Overflow exception. */ |
#define OEX_FPU_UFLO 0x02 /* Underflow exception. */ |
#define OEX_FPU_INEX 0x01 /* Inexact exception. */ |
|
/* Masks for the info word of an ODK_PAD descriptor. */ |
#define OPAD_PREFIX 0x01 |
#define OPAD_POSTFIX 0x02 |
#define OPAD_SYMBOL 0x04 |
|
/* Masks for the info word of an ODK_HWPATCH descriptor. */ |
#define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ |
#define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ |
#define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ |
#define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug |
(clean == 1). */ |
#define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned |
load patch. */ |
|
/* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ |
#define OGP_GROUP 0x0000ffff /* GP group number. */ |
#define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ |
|
/* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ |
#define OHWA0_R4KEOP_CHECKED 0x00000001 |
#define OHWA0_R4KEOP_CLEAN 0x00000002 |
|
|
/* Object attribute tags. */ |
enum |
{ |
/* 0-3 are generic. */ |
|
/* Floating-point ABI used by this object file. */ |
Tag_GNU_MIPS_ABI_FP = 4, |
}; |
|
/* 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_64 = 4, |
}; |
|
#endif /* _ELF_MIPS_H */ |