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Diffstat (limited to 'include/elf/mips.h')
| -rw-r--r-- | include/elf/mips.h | 860 |
1 files changed, 860 insertions, 0 deletions
diff --git a/include/elf/mips.h b/include/elf/mips.h new file mode 100644 index 00000000000..c967248da91 --- /dev/null +++ b/include/elf/mips.h @@ -0,0 +1,860 @@ +/* MIPS ELF support for BFD. + Copyright (C) 1993, 1994, 1995, 1996, 1998 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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) + RELOC_NUMBER (R_MIPS_REL32, 3) + RELOC_NUMBER (R_MIPS_26, 4) + RELOC_NUMBER (R_MIPS_HI16, 5) + RELOC_NUMBER (R_MIPS_LO16, 6) + RELOC_NUMBER (R_MIPS_GPREL16, 7) + RELOC_NUMBER (R_MIPS_LITERAL, 8) + RELOC_NUMBER (R_MIPS_GOT16, 9) + RELOC_NUMBER (R_MIPS_PC16, 10) + RELOC_NUMBER (R_MIPS_CALL16, 11) + 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) + RELOC_NUMBER (R_MIPS_max, 38) + /* These relocs are used for the mips16. */ + RELOC_NUMBER (R_MIPS16_26, 100) + RELOC_NUMBER (R_MIPS16_GPREL, 101) + /* 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 + +/* 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 + +/* Code in file uses new ABI (-n32 on Irix 6). */ +#define EF_MIPS_ABI2 0x00000020 + +/* Indicates code compiled for a 64-bit machine in 32-bit mode. + (regs are 32-bits wide.) */ +#define EF_MIPS_32BITMODE 0x00000100 + +/* 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 + +/* 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_4111 0x00880000 + + +/* 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 0xff00 + +/* 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 0xff01 + +/* 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 0xff02 + +/* Small common symbol. */ +#define SHN_MIPS_SCOMMON 0xff03 + +/* Small undefined symbol. */ +#define SHN_MIPS_SUNDEFINED 0xff04 + +/* 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 + +/* ??? */ +#define SHT_MIPS_DELTASYM 0x7000001b + +/* ??? */ +#define SHT_MIPS_DELTAINST 0x7000001c + +/* ??? */ +#define SHT_MIPS_DELTACLASS 0x7000001d + +/* DWARF debugging section. */ +#define SHT_MIPS_DWARF 0x7000001e + +/* ??? */ +#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 + +/* ??? */ +#define SHT_MIPS_PIXIE 0x70000023 + +/* ??? */ +#define SHT_MIPS_XLATE 0x70000024 + +/* ??? */ +#define SHT_MIPS_XLATE_DEBUG 0x70000025 + +/* ??? */ +#define SHT_MIPS_WHIRL 0x70000026 + +/* ??? */ +#define SHT_MIPS_EH_REGION 0x70000027 + +/* ??? */ +#define SHT_MIPS_XLATE_OLD 0x70000028 + +/* ??? */ +#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 + PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *)); +extern void bfd_mips_elf32_swap_reginfo_out + PARAMS ((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 32 bit addresses. */ +#define SHF_MIPS_ADDR32 0x40000000 + +/* This section contains 64 bit addresses. */ +#define SHF_MIPS_ADDR64 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 + +/* 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 + +/* Options (for what ???). */ +#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 + +/* ??? */ +#define DT_MIPS_SYMBOL_LIB 0x70000024 + +/* ??? */ +#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 + +/* ??? */ +#define DT_MIPS_LOCAL_GOTIDX 0x70000026 + +/* ??? */ +#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 + +/* ??? */ +#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 + +/* 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 + +#define RHF_NO_MOVE 0x00000008 +#define RHF_SGI_ONLY 0x00000010 +#define RHF_GUARANTEE_INIT 0x00000020 +#define RHF_DELTA_C_PLUS_PLUS 0x00000040 +#define RHF_GUARANTEE_START_INIT 0x00000080 +#define RHF_PIXIE 0x00000100 +#define RHF_DEFAULT_DELAY_LOAD 0x00000200 +#define RHF_REQUICKSTART 0x00000400 +#define RHF_REQUICKSTARTED 0x00000800 +#define RHF_CORD 0x00001000 +#define RHF_NO_UNRES_UNDEF 0x00002000 +#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 0x00 +#define STO_INTERNAL 0x01 +#define STO_HIDDEN 0x02 +#define STO_PROTECTED 0x03 + +/* This value is used for a mips16 .text symbol. */ +#define STO_MIPS16 0xf0 + +/* 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; + +/* 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 + PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *)); +extern void bfd_mips_elf_swap_options_out + PARAMS ((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; + +/* MIPS ELF reginfo swapping routines. */ +extern void bfd_mips_elf64_swap_reginfo_in + PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *)); +extern void bfd_mips_elf64_swap_reginfo_out + PARAMS ((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 floating-point 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 0x01 /* R4000 end-of-page patch. */ +#define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */ +#define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */ +#define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */ + +/* 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 + + +#endif /* _ELF_MIPS_H */ |