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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 9cb15b5be51b7e36f3fe0c9ee256eb9c99b9d796 / . / lib / Target / ARM / ARMELFWriterInfo.h
blob: ec9b14a9bfccdcf028814b33c79e4c84a988047a [file] [log] [blame]
Rafael Espindolafd9493d2010-09-27 18:31:37 +0000[diff] [blame]1//===-- ARMELFWriterInfo.h - ELF Writer Info for ARM ------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file implements ELF writer information for the ARM backend.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef ARM_ELF_WRITER_INFO_H
15#define ARM_ELF_WRITER_INFO_H
16
17#include "llvm/Target/TargetELFWriterInfo.h"
18
19namespace llvm {
20
21 class ARMELFWriterInfo : public TargetELFWriterInfo {
22
23 // ELF Relocation types for ARM
Jason W Kim6cecceb2010-11-08 16:47:27 +0000[diff] [blame]24 // Meets 2.08 ABI Specs. Most of these are not used by the assembler.
25 // They are here for completeness's sake
26
Rafael Espindolafd9493d2010-09-27 18:31:37 +0000[diff] [blame]27 enum ARMRelocationType {
Jason W Kim6cecceb2010-11-08 16:47:27 +0000[diff] [blame]28 R_ARM_NONE = 0x00,
29 R_ARM_PC24 = 0x01,
30 R_ARM_ABS32 = 0x02,
31 R_ARM_REL32 = 0x03,
32 R_ARM_LDR_PC_G0 = 0x04,
33 R_ARM_ABS16 = 0x05,
34 R_ARM_ABS12 = 0x06,
35 R_ARM_THM_ABS5 = 0x07,
36 R_ARM_ABS8 = 0x08,
37 R_ARM_SBREL32 = 0x09,
38 R_ARM_THM_CALL = 0x0a,
39 R_ARM_THM_PC8 = 0x0b,
40 R_ARM_BREL_ADJ = 0x0c,
41 R_ARM_TLS_DESC = 0x0d,
42 R_ARM_THM_SWI8 = 0x0e,
43 R_ARM_XPC25 = 0x0f,
44 R_ARM_THM_XPC22 = 0x10,
45 R_ARM_TLS_DTPMOD32 = 0x11,
46 R_ARM_TLS_DTPOFF32 = 0x12,
47 R_ARM_TLS_TPOFF32 = 0x13,
48 R_ARM_COPY = 0x14,
49 R_ARM_GLOB_DAT = 0x15,
50 R_ARM_JUMP_SLOT = 0x16,
51 R_ARM_RELATIVE = 0x17,
52 R_ARM_GOTOFF32 = 0x18,
53 R_ARM_BASE_PREL = 0x19,
54 R_ARM_GOT_BREL = 0x1a,
55 R_ARM_PLT32 = 0x1b,
56 R_ARM_CALL = 0x1c,
57 R_ARM_JUMP24 = 0x1d,
58 R_ARM_THM_JUMP24 = 0x1e,
59 R_ARM_BASE_ABS = 0x1f,
60 R_ARM_ALU_PCREL_7_0 = 0x20,
61 R_ARM_ALU_PCREL_15_8 = 0x21,
62 R_ARM_ALU_PCREL_23_15 = 0x22,
63 R_ARM_LDR_SBREL_11_0_NC = 0x23,
64 R_ARM_ALU_SBREL_19_12_NC = 0x24,
65 R_ARM_ALU_SBREL_27_20_CK = 0x25,
66 R_ARM_TARGET1 = 0x26,
67 R_ARM_SBREL31 = 0x27,
68 R_ARM_V4BX = 0x28,
69 R_ARM_TARGET2 = 0x29,
70 R_ARM_PREL31 = 0x2a,
71 R_ARM_MOVW_ABS_NC = 0x2b,
72 R_ARM_MOVT_ABS = 0x2c,
73 R_ARM_MOVW_PREL_NC = 0x2d,
74 R_ARM_MOVT_PREL = 0x2e,
75 R_ARM_THM_MOVW_ABS_NC = 0x2f,
76 R_ARM_THM_MOVT_ABS = 0x30,
77 R_ARM_THM_MOVW_PREL_NC = 0x31,
78 R_ARM_THM_MOVT_PREL = 0x32,
79 R_ARM_THM_JUMP19 = 0x33,
80 R_ARM_THM_JUMP6 = 0x34,
81 R_ARM_THM_ALU_PREL_11_0 = 0x35,
82 R_ARM_THM_PC12 = 0x36,
83 R_ARM_ABS32_NOI = 0x37,
84 R_ARM_REL32_NOI = 0x38,
85 R_ARM_ALU_PC_G0_NC = 0x39,
86 R_ARM_ALU_PC_G0 = 0x3a,
87 R_ARM_ALU_PC_G1_NC = 0x3b,
88 R_ARM_ALU_PC_G1 = 0x3c,
89 R_ARM_ALU_PC_G2 = 0x3d,
90 R_ARM_LDR_PC_G1 = 0x3e,
91 R_ARM_LDR_PC_G2 = 0x3f,
92 R_ARM_LDRS_PC_G0 = 0x40,
93 R_ARM_LDRS_PC_G1 = 0x41,
94 R_ARM_LDRS_PC_G2 = 0x42,
95 R_ARM_LDC_PC_G0 = 0x43,
96 R_ARM_LDC_PC_G1 = 0x44,
97 R_ARM_LDC_PC_G2 = 0x45,
98 R_ARM_ALU_SB_G0_NC = 0x46,
99 R_ARM_ALU_SB_G0 = 0x47,
100 R_ARM_ALU_SB_G1_NC = 0x48,
101 R_ARM_ALU_SB_G1 = 0x49,
102 R_ARM_ALU_SB_G2 = 0x4a,
103 R_ARM_LDR_SB_G0 = 0x4b,
104 R_ARM_LDR_SB_G1 = 0x4c,
105 R_ARM_LDR_SB_G2 = 0x4d,
106 R_ARM_LDRS_SB_G0 = 0x4e,
107 R_ARM_LDRS_SB_G1 = 0x4f,
108 R_ARM_LDRS_SB_G2 = 0x50,
109 R_ARM_LDC_SB_G0 = 0x51,
110 R_ARM_LDC_SB_G1 = 0x52,
111 R_ARM_LDC_SB_G2 = 0x53,
112 R_ARM_MOVW_BREL_NC = 0x54,
113 R_ARM_MOVT_BREL = 0x55,
114 R_ARM_MOVW_BREL = 0x56,
115 R_ARM_THM_MOVW_BREL_NC = 0x57,
116 R_ARM_THM_MOVT_BREL = 0x58,
117 R_ARM_THM_MOVW_BREL = 0x59,
118 R_ARM_TLS_GOTDESC = 0x5a,
119 R_ARM_TLS_CALL = 0x5b,
120 R_ARM_TLS_DESCSEQ = 0x5c,
121 R_ARM_THM_TLS_CALL = 0x5d,
122 R_ARM_PLT32_ABS = 0x5e,
123 R_ARM_GOT_ABS = 0x5f,
124 R_ARM_GOT_PREL = 0x60,
125 R_ARM_GOT_BREL12 = 0x61,
126 R_ARM_GOTOFF12 = 0x62,
127 R_ARM_GOTRELAX = 0x63,
128 R_ARM_GNU_VTENTRY = 0x64,
129 R_ARM_GNU_VTINHERIT = 0x65,
130 R_ARM_THM_JUMP11 = 0x66,
131 R_ARM_THM_JUMP8 = 0x67,
132 R_ARM_TLS_GD32 = 0x68,
133 R_ARM_TLS_LDM32 = 0x69,
134 R_ARM_TLS_LDO32 = 0x6a,
135 R_ARM_TLS_IE32 = 0x6b,
136 R_ARM_TLS_LE32 = 0x6c,
137 R_ARM_TLS_LDO12 = 0x6d,
138 R_ARM_TLS_LE12 = 0x6e,
139 R_ARM_TLS_IE12GP = 0x6f,
140 R_ARM_PRIVATE_0 = 0x70,
141 R_ARM_PRIVATE_1 = 0x71,
142 R_ARM_PRIVATE_2 = 0x72,
143 R_ARM_PRIVATE_3 = 0x73,
144 R_ARM_PRIVATE_4 = 0x74,
145 R_ARM_PRIVATE_5 = 0x75,
146 R_ARM_PRIVATE_6 = 0x76,
147 R_ARM_PRIVATE_7 = 0x77,
148 R_ARM_PRIVATE_8 = 0x78,
149 R_ARM_PRIVATE_9 = 0x79,
150 R_ARM_PRIVATE_10 = 0x7a,
151 R_ARM_PRIVATE_11 = 0x7b,
152 R_ARM_PRIVATE_12 = 0x7c,
153 R_ARM_PRIVATE_13 = 0x7d,
154 R_ARM_PRIVATE_14 = 0x7e,
155 R_ARM_PRIVATE_15 = 0x7f,
156 R_ARM_ME_TOO = 0x80,
157 R_ARM_THM_TLS_DESCSEQ16 = 0x81,
158 R_ARM_THM_TLS_DESCSEQ32 = 0x82
Rafael Espindolafd9493d2010-09-27 18:31:37 +0000[diff] [blame]159 };
160
161 public:
162 ARMELFWriterInfo(TargetMachine &TM);
163 virtual ~ARMELFWriterInfo();
164
165 /// getRelocationType - Returns the target specific ELF Relocation type.
166 /// 'MachineRelTy' contains the object code independent relocation type
167 virtual unsigned getRelocationType(unsigned MachineRelTy) const;
168
169 /// hasRelocationAddend - True if the target uses an addend in the
170 /// ELF relocation entry.
171 virtual bool hasRelocationAddend() const { return false; }
172
173 /// getDefaultAddendForRelTy - Gets the default addend value for a
174 /// relocation entry based on the target ELF relocation type.
175 virtual long int getDefaultAddendForRelTy(unsigned RelTy,
176 long int Modifier = 0) const;
177
178 /// getRelTySize - Returns the size of relocatable field in bits
179 virtual unsigned getRelocationTySize(unsigned RelTy) const;
180
181 /// isPCRelativeRel - True if the relocation type is pc relative
182 virtual bool isPCRelativeRel(unsigned RelTy) const;
183
184 /// getJumpTableRelocationTy - Returns the machine relocation type used
185 /// to reference a jumptable.
186 virtual unsigned getAbsoluteLabelMachineRelTy() const;
187
188 /// computeRelocation - Some relocatable fields could be relocated
189 /// directly, avoiding the relocation symbol emission, compute the
190 /// final relocation value for this symbol.
191 virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
192 unsigned RelTy) const;
193 };
194
195} // end llvm namespace
196
197#endif // ARM_ELF_WRITER_INFO_H