xref: /netbsd-src/sys/arch/arm/include/elf_machdep.h (revision a5847cc334d9a7029f6352b847e9e8d71a0f9e0c)
1 /*	$NetBSD: elf_machdep.h,v 1.8 2009/05/30 05:56:52 skrll Exp $	*/
2 
3 #if defined(__ARMEB__)
4 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2MSB
5 #else
6 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2LSB
7 #endif
8 
9 #define ELF64_MACHDEP_ENDIANNESS	XXX	/* break compilation */
10 #define ELF64_MACHDEP_ID_CASES                                          \
11 		/* no 64-bit ELF machine types supported */
12 
13 /* Processor specific flags for the ELF header e_flags field.  */
14 #define EF_ARM_RELEXEC		0x00000001
15 #define EF_ARM_HASENTRY		0x00000002
16 #define EF_ARM_INTERWORK	0x00000004 /* GNU binutils 000413 */
17 #define EF_ARM_SYMSARESORTED	0x00000004 /* ARM ELF A08 */
18 #define EF_ARM_APCS_26		0x00000008 /* GNU binutils 000413 */
19 #define EF_ARM_DYNSYMSUSESEGIDX	0x00000008 /* ARM ELF B01 */
20 #define EF_ARM_APCS_FLOAT	0x00000010 /* GNU binutils 000413 */
21 #define EF_ARM_MAPSYMSFIRST	0x00000010 /* ARM ELF B01 */
22 #define EF_ARM_PIC		0x00000020
23 #define EF_ARM_ALIGN8		0x00000040 /* 8-bit structure alignment.  */
24 #define EF_ARM_NEW_ABI		0x00000080
25 #define EF_ARM_OLD_ABI		0x00000100
26 #define EF_ARM_SOFT_FLOAT	0x00000200
27 #define EF_ARM_EABIMASK		0xff000000
28 
29 #define	ELF32_MACHDEP_ID_CASES						\
30 		case EM_ARM:						\
31 			break;
32 
33 #define	ELF32_MACHDEP_ID	EM_ARM
34 
35 #define ARCH_ELFSIZE		32	/* MD native binary size */
36 
37 /* Processor specific relocation types */
38 
39 #define R_ARM_NONE		0
40 #define R_ARM_PC24		1
41 #define R_ARM_ABS32		2
42 #define R_ARM_REL32		3
43 #define R_ARM_PC13		4
44 #define R_ARM_ABS16		5
45 #define R_ARM_ABS12		6
46 #define R_ARM_THM_ABS5		7
47 #define R_ARM_ABS8		8
48 #define R_ARM_SBREL32		9
49 #define R_ARM_THM_PC22		10
50 #define R_ARM_THM_PC8		11
51 #define R_ARM_AMP_VCALL9	12
52 #define R_ARM_SWI24		13
53 #define R_ARM_THM_SWI8		14
54 #define R_ARM_XPC25		15
55 #define R_ARM_THM_XPC22		16
56 
57 /* TLS relocations */
58 #define R_ARM_TLS_DTPMOD32	17	/* ID of module containing symbol */
59 #define R_ARM_TLS_DTPOFF32	18	/* Offset in TLS block */
60 #define R_ARM_TLS_TPOFF32	19	/* Offset in static TLS block */
61 
62 /* 20-31 are reserved for ARM Linux. */
63 #define R_ARM_COPY		20
64 #define R_ARM_GLOB_DAT		21
65 #define	R_ARM_JUMP_SLOT		22
66 #define R_ARM_RELATIVE		23
67 #define	R_ARM_GOTOFF		24
68 #define R_ARM_GOTPC		25
69 #define R_ARM_GOT32		26
70 #define R_ARM_PLT32		27
71 
72 #define R_ARM_ALU_PCREL_7_0	32
73 #define R_ARM_ALU_PCREL_15_8	33
74 #define R_ARM_ALU_PCREL_23_15	34
75 #define R_ARM_ALU_SBREL_11_0	35
76 #define R_ARM_ALU_SBREL_19_12	36
77 #define R_ARM_ALU_SBREL_27_20	37
78 
79 /* 96-111 are reserved to G++. */
80 #define R_ARM_GNU_VTENTRY	100
81 #define R_ARM_GNU_VTINHERIT	101
82 #define R_ARM_THM_PC11		102
83 #define R_ARM_THM_PC9		103
84 
85 /* More TLS relocations */
86 #define R_ARM_TLS_GD32		104	/* PC-rel 32 bit for global dynamic */
87 #define R_ARM_TLS_LDM32		105	/* PC-rel 32 bit for local dynamic */
88 #define R_ARM_TLS_LDO32		106	/* 32 bit offset relative to TLS */
89 #define R_ARM_TLS_IE32		107	/* PC-rel 32 bit for GOT entry of */
90 #define R_ARM_TLS_LE32		108
91 #define R_ARM_TLS_LDO12		109
92 #define R_ARM_TLS_LE12		110
93 #define R_ARM_TLS_IE12GP	111
94 
95 /* 112-127 are reserved for private experiments. */
96 
97 #define R_ARM_RXPC25		249
98 #define R_ARM_RSBREL32		250
99 #define R_ARM_THM_RPC22		251
100 #define R_ARM_RREL32		252
101 #define R_ARM_RABS32		253
102 #define R_ARM_RPC24		254
103 #define R_ARM_RBASE		255
104 
105 #define R_TYPE(name)		__CONCAT(R_ARM_,name)
106 
107 /* Processor specific program header flags */
108 #define PF_ARM_SB		0x10000000
109 #define PF_ARM_PI		0x20000000
110 #define PF_ARM_ENTRY		0x80000000
111 
112 /* Processor specific section header flags */
113 #define SHF_ENTRYSECT		0x10000000
114 #define SHF_COMDEF		0x80000000
115 
116 /* Processor specific symbol types */
117 #define STT_ARM_TFUNC		STT_LOPROC
118