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      1 /*	$NetBSD: elf_machdep.h,v 1.19 2017/11/06 03:47:45 christos Exp $	*/
      2 
      3 #ifndef _ARM_ELF_MACHDEP_H_
      4 #define _ARM_ELF_MACHDEP_H_
      5 
      6 #if defined(__ARMEB__)
      7 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2MSB
      8 #else
      9 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2LSB
     10 #endif
     11 
     12 #define ELF64_MACHDEP_ENDIANNESS	XXX	/* break compilation */
     13 #define ELF64_MACHDEP_ID_CASES                                          \
     14 		/* no 64-bit ELF machine types supported */
     15 
     16 /* Processor specific flags for the ELF header e_flags field.  */
     17 #define EF_ARM_RELEXEC		0x00000001
     18 #define EF_ARM_HASENTRY		0x00000002
     19 #define EF_ARM_INTERWORK	0x00000004 /* GNU binutils 000413 */
     20 #define EF_ARM_SYMSARESORTED	0x00000004 /* ARM ELF A08 */
     21 #define EF_ARM_APCS_26		0x00000008 /* GNU binutils 000413 */
     22 #define EF_ARM_DYNSYMSUSESEGIDX	0x00000008 /* ARM ELF B01 */
     23 #define EF_ARM_APCS_FLOAT	0x00000010 /* GNU binutils 000413 */
     24 #define EF_ARM_MAPSYMSFIRST	0x00000010 /* ARM ELF B01 */
     25 #define EF_ARM_PIC		0x00000020
     26 #define EF_ARM_ALIGN8		0x00000040 /* 8-bit structure alignment.  */
     27 #define EF_ARM_NEW_ABI		0x00000080
     28 #define EF_ARM_OLD_ABI		0x00000100
     29 #define EF_ARM_SOFT_FLOAT	0x00000200
     30 #define EF_ARM_BE8		0x00800000
     31 #define EF_ARM_EABIMASK		0xff000000
     32 #define	EF_ARM_EABI_VER1	0x01000000
     33 #define	EF_ARM_EABI_VER2	0x02000000
     34 #define	EF_ARM_EABI_VER3	0x03000000
     35 #define	EF_ARM_EABI_VER4	0x04000000
     36 #define	EF_ARM_EABI_VER5	0x05000000
     37 
     38 #define	ELF32_MACHDEP_ID_CASES						\
     39 		case EM_ARM:						\
     40 			break;
     41 
     42 #define	ELF32_MACHDEP_ID	EM_ARM
     43 
     44 #define	KERN_ELFSIZE		32
     45 #define ARCH_ELFSIZE		32	/* MD native binary size */
     46 
     47 /* Processor specific relocation types */
     48 
     49 #define R_ARM_NONE		0
     50 #define R_ARM_PC24		1
     51 #define R_ARM_ABS32		2
     52 #define R_ARM_REL32		3
     53 #define R_ARM_PC13		4
     54 #define R_ARM_ABS16		5
     55 #define R_ARM_ABS12		6
     56 #define R_ARM_THM_ABS5		7
     57 #define R_ARM_ABS8		8
     58 #define R_ARM_SBREL32		9
     59 #define R_ARM_THM_PC22		10
     60 #define R_ARM_THM_PC8		11
     61 #define R_ARM_AMP_VCALL9	12
     62 #define R_ARM_SWI24		13
     63 #define R_ARM_THM_SWI8		14
     64 #define R_ARM_XPC25		15
     65 #define R_ARM_THM_XPC22		16
     66 
     67 /* TLS relocations */
     68 #define R_ARM_TLS_DTPMOD32	17	/* ID of module containing symbol */
     69 #define R_ARM_TLS_DTPOFF32	18	/* Offset in TLS block */
     70 #define R_ARM_TLS_TPOFF32	19	/* Offset in static TLS block */
     71 
     72 /* 20-31 are reserved for ARM Linux. */
     73 #define R_ARM_COPY		20
     74 #define R_ARM_GLOB_DAT		21
     75 #define	R_ARM_JUMP_SLOT		22
     76 #define R_ARM_RELATIVE		23
     77 #define	R_ARM_GOTOFF		24
     78 #define R_ARM_GOTPC		25
     79 #define R_ARM_GOT32		26
     80 #define R_ARM_PLT32		27
     81 #define R_ARM_CALL		28
     82 #define R_ARM_JUMP24		29
     83 #define R_ARM_THM_JUMP24	30
     84 #define R_ARM_BASE_ABS		31
     85 #define R_ARM_ALU_PCREL_7_0	32
     86 #define R_ARM_ALU_PCREL_15_8	33
     87 #define R_ARM_ALU_PCREL_23_15	34
     88 #define R_ARM_ALU_SBREL_11_0	35
     89 #define R_ARM_ALU_SBREL_19_12	36
     90 #define R_ARM_ALU_SBREL_27_20	37	// depcreated
     91 #define R_ARM_TARGET1		38
     92 #define R_ARM_SBREL31		39	// deprecated
     93 #define R_ARM_V4BX		40
     94 #define R_ARM_TARGET2		41
     95 #define R_ARM_PREL31		42
     96 #define R_ARM_MOVW_ABS_NC	43
     97 #define R_ARM_MOVT_ABS		44
     98 #define R_ARM_MOVW_PREL_NC	45
     99 #define R_ARM_MOVT_PREL		46
    100 #define R_ARM_THM_MOVW_ABS_NC	47
    101 #define R_ARM_THM_MOVT_ABS	48
    102 #define R_ARM_THM_MOVW_PREL_NC	49
    103 #define R_ARM_THM_MOVT_PREL	50
    104 
    105 /* 96-111 are reserved to G++. */
    106 #define R_ARM_GNU_VTENTRY	100
    107 #define R_ARM_GNU_VTINHERIT	101
    108 #define R_ARM_THM_PC11		102
    109 #define R_ARM_THM_PC9		103
    110 
    111 /* More TLS relocations */
    112 #define R_ARM_TLS_GD32		104	/* PC-rel 32 bit for global dynamic */
    113 #define R_ARM_TLS_LDM32		105	/* PC-rel 32 bit for local dynamic */
    114 #define R_ARM_TLS_LDO32		106	/* 32 bit offset relative to TLS */
    115 #define R_ARM_TLS_IE32		107	/* PC-rel 32 bit for GOT entry of */
    116 #define R_ARM_TLS_LE32		108
    117 #define R_ARM_TLS_LDO12		109
    118 #define R_ARM_TLS_LE12		110
    119 #define R_ARM_TLS_IE12GP	111
    120 
    121 /* 112-127 are reserved for private experiments. */
    122 
    123 #define R_ARM_IRELATIVE		160
    124 
    125 #define R_ARM_RXPC25		249
    126 #define R_ARM_RSBREL32		250
    127 #define R_ARM_THM_RPC22		251
    128 #define R_ARM_RREL32		252
    129 #define R_ARM_RABS32		253
    130 #define R_ARM_RPC24		254
    131 #define R_ARM_RBASE		255
    132 
    133 #define R_TYPE(name)		__CONCAT(R_ARM_,name)
    134 
    135 /* Processor specific program header flags */
    136 #define PF_ARM_SB		0x10000000
    137 #define PF_ARM_PI		0x20000000
    138 #define PF_ARM_ENTRY		0x80000000
    139 
    140 /* Processor specific program header types */
    141 #define PT_ARM_EXIDX		(PT_LOPROC + 1)
    142 
    143 /* Processor specific section header flags */
    144 #define SHF_ENTRYSECT		0x10000000
    145 #define SHF_COMDEF		0x80000000
    146 
    147 /* Processor specific symbol types */
    148 #define STT_ARM_TFUNC		STT_LOPROC
    149 
    150 #ifdef _KERNEL
    151 #ifdef ELFSIZE
    152 #define	ELF_MD_PROBE_FUNC	ELFNAME2(arm_netbsd,probe)
    153 #define	ELF_MD_COREDUMP_SETUP	ELFNAME2(arm_netbsd,coredump_setup)
    154 #endif
    155 
    156 struct exec_package;
    157 
    158 int arm_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
    159 	vaddr_t *);
    160 void arm_netbsd_elf32_coredump_setup(struct lwp *, void *);
    161 #endif
    162 
    163 #endif /* _ARM_ELF_MACHDEP_H_ */
    164