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elf_machdep.h revision 1.13 
      1 /*	$NetBSD: elf_machdep.h,v 1.13 2013/08/07 18:34:53 matt 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 ARCH_ELFSIZE		32	/* MD native binary size */
     45 
     46 /* Processor specific relocation types */
     47 
     48 #define R_ARM_NONE		0
     49 #define R_ARM_PC24		1
     50 #define R_ARM_ABS32		2
     51 #define R_ARM_REL32		3
     52 #define R_ARM_PC13		4
     53 #define R_ARM_ABS16		5
     54 #define R_ARM_ABS12		6
     55 #define R_ARM_THM_ABS5		7
     56 #define R_ARM_ABS8		8
     57 #define R_ARM_SBREL32		9
     58 #define R_ARM_THM_PC22		10
     59 #define R_ARM_THM_PC8		11
     60 #define R_ARM_AMP_VCALL9	12
     61 #define R_ARM_SWI24		13
     62 #define R_ARM_THM_SWI8		14
     63 #define R_ARM_XPC25		15
     64 #define R_ARM_THM_XPC22		16
     65 
     66 /* TLS relocations */
     67 #define R_ARM_TLS_DTPMOD32	17	/* ID of module containing symbol */
     68 #define R_ARM_TLS_DTPOFF32	18	/* Offset in TLS block */
     69 #define R_ARM_TLS_TPOFF32	19	/* Offset in static TLS block */
     70 
     71 /* 20-31 are reserved for ARM Linux. */
     72 #define R_ARM_COPY		20
     73 #define R_ARM_GLOB_DAT		21
     74 #define	R_ARM_JUMP_SLOT		22
     75 #define R_ARM_RELATIVE		23
     76 #define	R_ARM_GOTOFF		24
     77 #define R_ARM_GOTPC		25
     78 #define R_ARM_GOT32		26
     79 #define R_ARM_PLT32		27
     80 #define R_ARM_CALL		28
     81 #define R_ARM_JUMP24		29
     82 #define R_ARM_THM_JUMP24	30
     83 #define R_ARM_BASE_ABS		31
     84 #define R_ARM_ALU_PCREL_7_0	32
     85 #define R_ARM_ALU_PCREL_15_8	33
     86 #define R_ARM_ALU_PCREL_23_15	34
     87 #define R_ARM_ALU_SBREL_11_0	35
     88 #define R_ARM_ALU_SBREL_19_12	36
     89 #define R_ARM_ALU_SBREL_27_20	37	// depcreated
     90 #define R_ARM_TARGET1		38
     91 #define R_ARM_SBREL31		39	// deprecated
     92 #define R_ARM_V4BX		40
     93 #define R_ARM_TARGET2		41
     94 #define R_ARM_PREL31		42
     95 #define R_ARM_MOVW_ABS_NC	43
     96 #define R_ARM_MOVT_ABS		44
     97 #define R_ARM_MOVW_PREL_NC	45
     98 #define R_ARM_MOVT_PREL		46
     99 #define R_ARM_THM_MOVW_ABS_NC	47
    100 #define R_ARM_THM_MOVT_ABS	48
    101 #define R_ARM_THM_MOVW_PREL_NC	49
    102 #define R_ARM_THM_MOVT_PREL	50
    103 
    104 /* 96-111 are reserved to G++. */
    105 #define R_ARM_GNU_VTENTRY	100
    106 #define R_ARM_GNU_VTINHERIT	101
    107 #define R_ARM_THM_PC11		102
    108 #define R_ARM_THM_PC9		103
    109 
    110 /* More TLS relocations */
    111 #define R_ARM_TLS_GD32		104	/* PC-rel 32 bit for global dynamic */
    112 #define R_ARM_TLS_LDM32		105	/* PC-rel 32 bit for local dynamic */
    113 #define R_ARM_TLS_LDO32		106	/* 32 bit offset relative to TLS */
    114 #define R_ARM_TLS_IE32		107	/* PC-rel 32 bit for GOT entry of */
    115 #define R_ARM_TLS_LE32		108
    116 #define R_ARM_TLS_LDO12		109
    117 #define R_ARM_TLS_LE12		110
    118 #define R_ARM_TLS_IE12GP	111
    119 
    120 /* 112-127 are reserved for private experiments. */
    121 
    122 #define R_ARM_RXPC25		249
    123 #define R_ARM_RSBREL32		250
    124 #define R_ARM_THM_RPC22		251
    125 #define R_ARM_RREL32		252
    126 #define R_ARM_RABS32		253
    127 #define R_ARM_RPC24		254
    128 #define R_ARM_RBASE		255
    129 
    130 #define R_TYPE(name)		__CONCAT(R_ARM_,name)
    131 
    132 /* Processor specific program header flags */
    133 #define PF_ARM_SB		0x10000000
    134 #define PF_ARM_PI		0x20000000
    135 #define PF_ARM_ENTRY		0x80000000
    136 
    137 /* Processor specific program header types */
    138 #define PT_ARM_EXIDX		(PT_LOPROC + 1)
    139 
    140 /* Processor specific section header flags */
    141 #define SHF_ENTRYSECT		0x10000000
    142 #define SHF_COMDEF		0x80000000
    143 
    144 /* Processor specific symbol types */
    145 #define STT_ARM_TFUNC		STT_LOPROC
    146 
    147 #ifdef _KERNEL
    148 #ifdef ELFSIZE
    149 #define	ELF_MD_PROBE_FUNC	ELFNAME2(arm_netbsd,probe)
    150 #endif
    151 
    152 struct exec_package;
    153 
    154 int arm_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
    155 	vaddr_t *);
    156 #endif
    157 
    158 #endif /* _ARM_ELF_MACHDEP_H_ */
    159