/* MIPS ELF support for BFD.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ 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
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+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. */
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
+
\f
/* Processor specific section indices. These sections do not actually
exist. Symbols with a st_shndx field corresponding to one of these
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
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 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
typedef struct
{
/* String table index for name of shared object. */
- Elf32_Word l_name;
+ unsigned long l_name;
/* Time stamp. */
- Elf32_Word l_time_stamp;
+ unsigned long l_time_stamp;
/* Checksum of symbol names and common sizes. */
- Elf32_Word l_checksum;
+ unsigned long l_checksum;
/* String table index for version. */
- Elf32_Word l_version;
+ unsigned long l_version;
/* Flags. */
- Elf32_Word l_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. */
/* 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 Elf32_Addr Elf32_Conflict;
+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
struct
{
/* -G value actually used for this object file. */
- Elf32_Word gt_current_g_value;
+ unsigned long gt_current_g_value;
/* Unused. */
- Elf32_Word gt_unused;
+ unsigned long gt_unused;
} gt_header;
struct
{
/* If this -G argument has been used... */
- Elf32_Word gt_g_value;
+ unsigned long gt_g_value;
/* ...this many GP section bytes would be required. */
- Elf32_Word gt_bytes;
+ 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. */
- Elf32_Word ri_gprmask;
+ unsigned long ri_gprmask;
/* Mask of co-processor registers used. */
- Elf32_Word ri_cprmask[4];
+ unsigned long ri_cprmask[4];
/* GP register value for this object file. */
- Elf32_SWord ri_gp_value;
-} Elf_RegInfo;
+ 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 *));
\f
/* Processor specific section flags. */
/* This section must be in the global data area. */
-define SHF_MIPS_GPREL 0x10000000
+#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
+\f
+/* 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
+\f
+/* 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
+\f
+/* 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
+\f
+/* 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
+\f
+/* 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
+\f
+/* 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
+\f
+
+#endif /* _ELF_MIPS_H */