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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
156struct exec_package;
157
158int arm_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
159 vaddr_t *);
160void arm_netbsd_elf32_coredump_setup(struct lwp *, void *);
161#endif
162
163#endif /* _ARM_ELF_MACHDEP_H_ */