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      1 /*	$NetBSD: elf_machdep.h,v 1.15 2011/03/15 07:39:22 matt Exp $	*/
      2 
      3 #ifndef _MIPS_ELF_MACHDEP_H_
      4 #define  _MIPS_ELF_MACHDEP_H_
      5 
      6 #ifdef _LP64
      7 #define ARCH_ELFSIZE		64	/* MD native binary size */
      8 #else
      9 #define ARCH_ELFSIZE		32	/* MD native binary size */
     10 #endif
     11 
     12 #if ELFSIZE == 32
     13 #define	ELF32_MACHDEP_ID_CASES						\
     14 		case EM_MIPS:						\
     15 			break;
     16 
     17 #define	ELF32_MACHDEP_ID	EM_MIPS
     18 #elif ELFSIZE == 64
     19 #define	ELF64_MACHDEP_ID_CASES						\
     20 		case EM_MIPS:						\
     21 			break;
     22 
     23 #define	ELF64_MACHDEP_ID	EM_MIPS
     24 #endif
     25 
     26 /* mips relocs.  */
     27 
     28 #define R_MIPS_NONE		0
     29 #define R_MIPS_16		1
     30 #define R_MIPS_32		2
     31 #define R_MIPS_REL32		3
     32 #define R_MIPS_REL		R_MIPS_REL32
     33 #define R_MIPS_26		4
     34 #define R_MIPS_HI16		5	/* high 16 bits of symbol value */
     35 #define R_MIPS_LO16		6	/* low 16 bits of symbol value */
     36 #define R_MIPS_GPREL16		7  	/* GP-relative reference  */
     37 #define R_MIPS_LITERAL		8 	/* Reference to literal section  */
     38 #define R_MIPS_GOT16		9	/* Reference to global offset table */
     39 #define R_MIPS_GOT		R_MIPS_GOT16
     40 #define R_MIPS_PC16		10  	/* 16 bit PC relative reference */
     41 #define R_MIPS_CALL16 		11  	/* 16 bit call thru glbl offset tbl */
     42 #define R_MIPS_CALL		R_MIPS_CALL16
     43 #define R_MIPS_GPREL32		12
     44 
     45 /* 13, 14, 15 are not defined at this point. */
     46 #define R_MIPS_UNUSED1		13
     47 #define R_MIPS_UNUSED2		14
     48 #define R_MIPS_UNUSED3		15
     49 
     50 /*
     51  * The remaining relocs are apparently part of the 64-bit Irix ELF ABI.
     52  */
     53 #define R_MIPS_SHIFT5		16
     54 #define R_MIPS_SHIFT6		17
     55 
     56 #define R_MIPS_64		18
     57 #define R_MIPS_GOT_DISP		19
     58 #define R_MIPS_GOT_PAGE		20
     59 #define R_MIPS_GOT_OFST		21
     60 #define R_MIPS_GOT_HI16		22
     61 #define R_MIPS_GOT_LO16		23
     62 #define R_MIPS_SUB 		24
     63 #define R_MIPS_INSERT_A		25
     64 #define R_MIPS_INSERT_B		26
     65 #define R_MIPS_DELETE		27
     66 #define R_MIPS_HIGHER		28
     67 #define R_MIPS_HIGHEST		29
     68 #define R_MIPS_CALL_HI16	30
     69 #define R_MIPS_CALL_LO16	31
     70 #define R_MIPS_SCN_DISP		32
     71 #define R_MIPS_REL16		33
     72 #define R_MIPS_ADD_IMMEDIATE	34
     73 #define R_MIPS_PJUMP		35
     74 #define R_MIPS_RELGOT		36
     75 #define	R_MIPS_JALR		37
     76 /* TLS relocations */
     77 
     78 #define R_MIPS_TLS_DTPMOD32	38	/* Module number 32 bit */
     79 #define R_MIPS_TLS_DTPREL32	39	/* Module-relative offset 32 bit */
     80 #define R_MIPS_TLS_DTPMOD64	40	/* Module number 64 bit */
     81 #define R_MIPS_TLS_DTPREL64	41	/* Module-relative offset 64 bit */
     82 #define R_MIPS_TLS_GD		42	/* 16 bit GOT offset for GD */
     83 #define R_MIPS_TLS_LDM		43	/* 16 bit GOT offset for LDM */
     84 #define R_MIPS_TLS_DTPREL_HI16	44	/* Module-relative offset, high 16 bits */
     85 #define R_MIPS_TLS_DTPREL_LO16	45	/* Module-relative offset, low 16 bits */
     86 #define R_MIPS_TLS_GOTTPREL	46	/* 16 bit GOT offset for IE */
     87 #define R_MIPS_TLS_TPREL32	47	/* TP-relative offset, 32 bit */
     88 #define R_MIPS_TLS_TPREL64	48	/* TP-relative offset, 64 bit */
     89 #define R_MIPS_TLS_TPREL_HI16	49	/* TP-relative offset, high 16 bits */
     90 #define R_MIPS_TLS_TPREL_LO16	50	/* TP-relative offset, low 16 bits */
     91 
     92 #define R_MIPS_max		51
     93 
     94 #define R_TYPE(name)		__CONCAT(R_MIPS_,name)
     95 
     96 #define	R_MIPS16_min		100
     97 #define	R_MIPS16_26		100
     98 #define	R_MIPS16_GPREL		101
     99 #define	R_MIPS16_GOT16		102
    100 #define	R_MIPS16_CALL16		103
    101 #define	R_MIPS16_HI16		104
    102 #define	R_MIPS16_LO16		105
    103 #define	R_MIPS16_max		106
    104 
    105 
    106 /* mips dynamic tags */
    107 
    108 #define DT_MIPS_RLD_VERSION	0x70000001
    109 #define DT_MIPS_TIME_STAMP	0x70000002
    110 #define DT_MIPS_ICHECKSUM	0x70000003
    111 #define DT_MIPS_IVERSION	0x70000004
    112 #define DT_MIPS_FLAGS		0x70000005
    113 #define DT_MIPS_BASE_ADDRESS	0x70000006
    114 #define DT_MIPS_CONFLICT	0x70000008
    115 #define DT_MIPS_LIBLIST		0x70000009
    116 #define DT_MIPS_CONFLICTNO	0x7000000b
    117 #define	DT_MIPS_LOCAL_GOTNO	0x7000000a	/* number of local got ents */
    118 #define DT_MIPS_LIBLISTNO	0x70000010
    119 #define	DT_MIPS_SYMTABNO	0x70000011	/* number of .dynsym entries */
    120 #define DT_MIPS_UNREFEXTNO	0x70000012
    121 #define	DT_MIPS_GOTSYM		0x70000013	/* first dynamic sym in got */
    122 #define DT_MIPS_HIPAGENO	0x70000014
    123 #define	DT_MIPS_RLD_MAP		0x70000016	/* address of loader map */
    124 
    125 /*
    126  * ELF Flags
    127  */
    128 #define	EF_MIPS_PIC		0x00000002	/* Contains PIC code */
    129 #define	EF_MIPS_CPIC		0x00000004	/* STD PIC calling sequence */
    130 #define	EF_MIPS_ABI2		0x00000020	/* N32 */
    131 
    132 #define	EF_MIPS_ARCH_ASE	0x0f000000	/* Architectural extensions */
    133 #define	EF_MIPS_ARCH_MDMX	0x08000000	/* MDMX multimedia extension */
    134 #define	EF_MIPS_ARCH_M16	0x04000000	/* MIPS-16 ISA extensions */
    135 
    136 #define	EF_MIPS_ARCH		0xf0000000	/* Architecture field */
    137 #define	EF_MIPS_ARCH_1		0x00000000	/* -mips1 code */
    138 #define	EF_MIPS_ARCH_2		0x10000000	/* -mips2 code */
    139 #define	EF_MIPS_ARCH_3		0x20000000	/* -mips3 code */
    140 #define	EF_MIPS_ARCH_4		0x30000000	/* -mips4 code */
    141 #define	EF_MIPS_ARCH_5		0x40000000	/* -mips5 code */
    142 #define	EF_MIPS_ARCH_32		0x50000000	/* -mips32 code */
    143 #define	EF_MIPS_ARCH_64		0x60000000	/* -mips64 code */
    144 #define	EF_MIPS_ARCH_32R2	0x70000000	/* -mips32r2 code */
    145 #define	EF_MIPS_ARCH_64R2	0x80000000	/* -mips64r2 code */
    146 
    147 #define	EF_MIPS_ABI		0x0000f000
    148 #define	EF_MIPS_ABI_O32		0x00001000
    149 #define	EF_MIPS_ABI_O64		0x00002000
    150 #define	EF_MIPS_ABI_EABI32	0x00003000
    151 #define	EF_MIPS_ABI_EABI64	0x00004000
    152 
    153 #if defined(__MIPSEB__)
    154 #define	ELF32_MACHDEP_ENDIANNESS	ELFDATA2MSB
    155 #define	ELF64_MACHDEP_ENDIANNESS	ELFDATA2MSB
    156 #elif defined(__MIPSEL__)
    157 #define	ELF32_MACHDEP_ENDIANNESS	ELFDATA2LSB
    158 #define	ELF64_MACHDEP_ENDIANNESS	ELFDATA2LSB
    159 #elif !defined(HAVE_NBTOOL_CONFIG_H)
    160 #error neither __MIPSEL__ nor __MIPSEB__ are defined.
    161 #endif
    162 
    163 #ifdef _KERNEL
    164 #ifdef _KERNEL_OPT
    165 #include "opt_compat_netbsd.h"
    166 #endif
    167 #ifdef COMPAT_16
    168 /*
    169  * Up to 1.6, the ELF dynamic loader (ld.elf_so) was not relocatable.
    170  * Tell the kernel ELF exec code not to try relocating the interpreter
    171  * for dynamically-linked ELF binaries.
    172  */
    173 #define ELF_INTERP_NON_RELOCATABLE
    174 #endif /* COMPAT_16 */
    175 
    176 /*
    177  * We need to be able to include the ELF header so we can pick out the
    178  * ABI being used.
    179  */
    180 #ifdef ELFSIZE
    181 #define	ELF_MD_PROBE_FUNC	ELFNAME2(mips_netbsd,probe)
    182 #define	ELF_MD_COREDUMP_SETUP	ELFNAME2(coredump,setup)
    183 #endif
    184 
    185 struct exec_package;
    186 
    187 int mips_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
    188 	vaddr_t *);
    189 void coredump_elf32_setup(struct lwp *, void *);
    190 
    191 int mips_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *,
    192 	vaddr_t *);
    193 void coredump_elf64_setup(struct lwp *, void *);
    194 #endif /* _KERNEL */
    195 
    196 #endif /* _MIPS_ELF_MACHDEP_H_ */
    197