/* MIPS ELF support for BFD.
- Copyright (C) 1993, 1994, 1995, 1996 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
#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. */
/* 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
/* -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
/* 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 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
-/* I'm not sure what this is, but it appears on Irix 6. */
+/* ??? */
+#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
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 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
/* Runtime procedure table. */
#define PT_MIPS_RTPROC 0x70000001
+
+/* Options (for what ???). */
+#define PT_MIPS_OPTIONS 0x70000002
\f
/* Processor specific dynamic array tags. */
/* 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 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. */
/* 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
-
-/* start-sanitize-sky */
-/* These values are used for the dvp. */
-#define STO_DVP_DMA 0xe8
-#define STO_DVP_PKE 0xe9
-#define STO_DVP_GPUIF 0xea
-#define STO_DVP_VU 0xeb
-#define MIPS_STO_DVP_P(sto) ((sto) >= STO_DVP_DMA && (sto) <= STO_DVP_VU)
+#define STO_DEFAULT STV_DEFAULT
+#define STO_INTERNAL STV_INTERNAL
+#define STO_HIDDEN STV_HIDDEN
+#define STO_PROTECTED STV_PROTECTED
-/* end-sanitize-sky */
/* This value is used for a mips16 .text symbol. */
#define STO_MIPS16 0xf0
\f
/* Section padding information. */
#define ODK_PAD 3
-/* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_Reginfo
+/* 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. */
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
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 */
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