Gitiles
Code Review Sign In
gerrit-public.fairphone.software / toolchain / llvm-project / 52cf8e44880bcf614068b66b63393aa8da1edd76 / . / llvm / lib / Target / PowerPC / MCTargetDesc / PPCELFObjectWriter.cpp
blob: 54de70eff71a75a0117c9b06543f5ac7302923c5 [file] [log] [blame]
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]1//===-- PPCELFObjectWriter.cpp - PPC ELF Writer ---------------------------===//
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
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]10#include "MCTargetDesc/PPCMCTargetDesc.h"
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]11#include "MCTargetDesc/PPCFixupKinds.h"
Bill Schmidta4f89842012-12-14 20:28:38 +0000[diff] [blame]12#include "llvm/ADT/STLExtras.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]13#include "llvm/MC/MCELFObjectWriter.h"
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]14#include "llvm/MC/MCExpr.h"
15#include "llvm/MC/MCValue.h"
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]16#include "llvm/Support/ErrorHandling.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]17
18using namespace llvm;
19
20namespace {
21 class PPCELFObjectWriter : public MCELFObjectTargetWriter {
22 public:
23 PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI);
24
25 virtual ~PPCELFObjectWriter();
26 protected:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]27 virtual unsigned getRelocTypeInner(const MCValue &Target,
28 const MCFixup &Fixup,
29 bool IsPCRel) const;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]30 virtual unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
31 bool IsPCRel, bool IsRelocWithSymbol,
32 int64_t Addend) const;
Ulrich Weigand3a758612013-07-01 18:19:56 +0000[diff] [blame]33 virtual const MCSymbol *ExplicitRelSym(const MCAssembler &Asm,
34 const MCValue &Target,
35 const MCFragment &F,
36 const MCFixup &Fixup,
37 bool IsPCRel) const;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]38 virtual const MCSymbol *undefinedExplicitRelSym(const MCValue &Target,
39 const MCFixup &Fixup,
40 bool IsPCRel) const;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]41 };
42}
43
44PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
45 : MCELFObjectTargetWriter(Is64Bit, OSABI,
46 Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
Rafael Espindola25009622011-12-22 18:38:06 +0000[diff] [blame]47 /*HasRelocationAddend*/ true) {}
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]48
49PPCELFObjectWriter::~PPCELFObjectWriter() {
50}
51
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]52unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target,
53 const MCFixup &Fixup,
54 bool IsPCRel) const
55{
56 MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
57 MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
58
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]59 // determine the type of the relocation
60 unsigned Type;
61 if (IsPCRel) {
62 switch ((unsigned)Fixup.getKind()) {
63 default:
64 llvm_unreachable("Unimplemented");
65 case PPC::fixup_ppc_br24:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]66 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]67 Type = ELF::R_PPC_REL24;
68 break;
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]69 case PPC::fixup_ppc_brcond14:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]70 case PPC::fixup_ppc_brcond14abs:
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]71 Type = ELF::R_PPC_REL14;
72 break;
Ulrich Weigand91add7d2013-06-21 14:44:37 +0000[diff] [blame]73 case PPC::fixup_ppc_half16:
74 switch (Modifier) {
75 default: llvm_unreachable("Unsupported Modifier");
76 case MCSymbolRefExpr::VK_None:
77 Type = ELF::R_PPC_REL16;
78 break;
79 case MCSymbolRefExpr::VK_PPC_LO:
80 Type = ELF::R_PPC_REL16_LO;
81 break;
82 case MCSymbolRefExpr::VK_PPC_HI:
83 Type = ELF::R_PPC_REL16_HI;
84 break;
85 case MCSymbolRefExpr::VK_PPC_HA:
86 Type = ELF::R_PPC_REL16_HA;
87 break;
88 }
89 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]90 case FK_Data_4:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]91 case FK_PCRel_4:
92 Type = ELF::R_PPC_REL32;
93 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]94 case FK_Data_8:
95 case FK_PCRel_8:
96 Type = ELF::R_PPC64_REL64;
97 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]98 }
99 } else {
100 switch ((unsigned)Fixup.getKind()) {
101 default: llvm_unreachable("invalid fixup kind!");
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]102 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]103 Type = ELF::R_PPC_ADDR24;
104 break;
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]105 case PPC::fixup_ppc_brcond14abs:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]106 Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]107 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]108 case PPC::fixup_ppc_half16:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]109 switch (Modifier) {
110 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]111 case MCSymbolRefExpr::VK_None:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]112 Type = ELF::R_PPC_ADDR16;
113 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]114 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]115 Type = ELF::R_PPC_ADDR16_LO;
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]116 break;
Ulrich Weigande67c5652013-06-21 14:42:49 +0000[diff] [blame]117 case MCSymbolRefExpr::VK_PPC_HI:
118 Type = ELF::R_PPC_ADDR16_HI;
119 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]120 case MCSymbolRefExpr::VK_PPC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]121 Type = ELF::R_PPC_ADDR16_HA;
122 break;
Ulrich Weigande9126f52013-06-21 14:43:42 +0000[diff] [blame]123 case MCSymbolRefExpr::VK_PPC_HIGHER:
124 Type = ELF::R_PPC64_ADDR16_HIGHER;
125 break;
126 case MCSymbolRefExpr::VK_PPC_HIGHERA:
127 Type = ELF::R_PPC64_ADDR16_HIGHERA;
128 break;
129 case MCSymbolRefExpr::VK_PPC_HIGHEST:
130 Type = ELF::R_PPC64_ADDR16_HIGHEST;
131 break;
132 case MCSymbolRefExpr::VK_PPC_HIGHESTA:
133 Type = ELF::R_PPC64_ADDR16_HIGHESTA;
134 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]135 case MCSymbolRefExpr::VK_GOT:
136 Type = ELF::R_PPC_GOT16;
137 break;
138 case MCSymbolRefExpr::VK_PPC_GOT_LO:
139 Type = ELF::R_PPC_GOT16_LO;
140 break;
141 case MCSymbolRefExpr::VK_PPC_GOT_HI:
142 Type = ELF::R_PPC_GOT16_HI;
143 break;
144 case MCSymbolRefExpr::VK_PPC_GOT_HA:
145 Type = ELF::R_PPC_GOT16_HA;
146 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]147 case MCSymbolRefExpr::VK_PPC_TOC:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]148 Type = ELF::R_PPC64_TOC16;
149 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]150 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]151 Type = ELF::R_PPC64_TOC16_LO;
152 break;
Ulrich Weigand72ddbd62013-06-21 14:43:10 +0000[diff] [blame]153 case MCSymbolRefExpr::VK_PPC_TOC_HI:
154 Type = ELF::R_PPC64_TOC16_HI;
155 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]156 case MCSymbolRefExpr::VK_PPC_TOC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]157 Type = ELF::R_PPC64_TOC16_HA;
158 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]159 case MCSymbolRefExpr::VK_PPC_TPREL:
160 Type = ELF::R_PPC_TPREL16;
161 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]162 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]163 Type = ELF::R_PPC_TPREL16_LO;
164 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]165 case MCSymbolRefExpr::VK_PPC_TPREL_HI:
166 Type = ELF::R_PPC_TPREL16_HI;
167 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]168 case MCSymbolRefExpr::VK_PPC_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]169 Type = ELF::R_PPC_TPREL16_HA;
170 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]171 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER:
172 Type = ELF::R_PPC64_TPREL16_HIGHER;
173 break;
174 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA:
175 Type = ELF::R_PPC64_TPREL16_HIGHERA;
176 break;
177 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST:
178 Type = ELF::R_PPC64_TPREL16_HIGHEST;
179 break;
180 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA:
181 Type = ELF::R_PPC64_TPREL16_HIGHESTA;
182 break;
183 case MCSymbolRefExpr::VK_PPC_DTPREL:
184 Type = ELF::R_PPC64_DTPREL16;
185 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]186 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]187 Type = ELF::R_PPC64_DTPREL16_LO;
188 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]189 case MCSymbolRefExpr::VK_PPC_DTPREL_HI:
190 Type = ELF::R_PPC64_DTPREL16_HI;
191 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]192 case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]193 Type = ELF::R_PPC64_DTPREL16_HA;
194 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]195 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER:
196 Type = ELF::R_PPC64_DTPREL16_HIGHER;
197 break;
198 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA:
199 Type = ELF::R_PPC64_DTPREL16_HIGHERA;
200 break;
201 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST:
202 Type = ELF::R_PPC64_DTPREL16_HIGHEST;
203 break;
204 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA:
205 Type = ELF::R_PPC64_DTPREL16_HIGHESTA;
206 break;
207 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD:
208 Type = ELF::R_PPC64_GOT_TLSGD16;
209 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]210 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]211 Type = ELF::R_PPC64_GOT_TLSGD16_LO;
212 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]213 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI:
214 Type = ELF::R_PPC64_GOT_TLSGD16_HI;
215 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]216 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]217 Type = ELF::R_PPC64_GOT_TLSGD16_HA;
218 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]219 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD:
220 Type = ELF::R_PPC64_GOT_TLSLD16;
221 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]222 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]223 Type = ELF::R_PPC64_GOT_TLSLD16_LO;
224 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]225 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI:
226 Type = ELF::R_PPC64_GOT_TLSLD16_HI;
227 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]228 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]229 Type = ELF::R_PPC64_GOT_TLSLD16_HA;
230 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]231 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
232 /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
233 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
234 Type = ELF::R_PPC64_GOT_TPREL16_DS;
235 break;
236 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
237 /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
238 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
239 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
240 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]241 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
242 Type = ELF::R_PPC64_GOT_TPREL16_HI;
243 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]244 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
245 /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
246 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
247 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
248 break;
249 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
250 /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
251 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
252 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
253 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]254 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]255 Type = ELF::R_PPC64_GOT_TPREL16_HA;
256 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]257 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI:
258 Type = ELF::R_PPC64_GOT_DTPREL16_HI;
259 break;
260 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA:
261 Type = ELF::R_PPC64_GOT_DTPREL16_HA;
262 break;
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]263 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]264 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]265 case PPC::fixup_ppc_half16ds:
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]266 switch (Modifier) {
267 default: llvm_unreachable("Unsupported Modifier");
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]268 case MCSymbolRefExpr::VK_None:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]269 Type = ELF::R_PPC64_ADDR16_DS;
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]270 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]271 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]272 Type = ELF::R_PPC64_ADDR16_LO_DS;
273 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]274 case MCSymbolRefExpr::VK_GOT:
275 Type = ELF::R_PPC64_GOT16_DS;
276 break;
277 case MCSymbolRefExpr::VK_PPC_GOT_LO:
278 Type = ELF::R_PPC64_GOT16_LO_DS;
279 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]280 case MCSymbolRefExpr::VK_PPC_TOC:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]281 Type = ELF::R_PPC64_TOC16_DS;
282 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]283 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]284 Type = ELF::R_PPC64_TOC16_LO_DS;
285 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]286 case MCSymbolRefExpr::VK_PPC_TPREL:
287 Type = ELF::R_PPC64_TPREL16_DS;
288 break;
289 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
290 Type = ELF::R_PPC64_TPREL16_LO_DS;
291 break;
292 case MCSymbolRefExpr::VK_PPC_DTPREL:
293 Type = ELF::R_PPC64_DTPREL16_DS;
294 break;
295 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
296 Type = ELF::R_PPC64_DTPREL16_LO_DS;
297 break;
298 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
299 Type = ELF::R_PPC64_GOT_TPREL16_DS;
300 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]301 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
Bill Schmidt9f0b4ec2012-12-14 17:02:38 +0000[diff] [blame]302 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
Bill Schmidtca4a0c92012-12-04 16:18:08 +0000[diff] [blame]303 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]304 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
305 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
306 break;
307 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
308 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
309 break;
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]310 }
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]311 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]312 case PPC::fixup_ppc_nofixup:
313 switch (Modifier) {
314 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame^]315 case MCSymbolRefExpr::VK_PPC_TLSGD:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]316 Type = ELF::R_PPC64_TLSGD;
317 break;
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame^]318 case MCSymbolRefExpr::VK_PPC_TLSLD:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]319 Type = ELF::R_PPC64_TLSLD;
320 break;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]321 case MCSymbolRefExpr::VK_PPC_TLS:
322 Type = ELF::R_PPC64_TLS;
323 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]324 }
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]325 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]326 case FK_Data_8:
327 switch (Modifier) {
328 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand68e2e1b2013-06-20 22:39:42 +0000[diff] [blame]329 case MCSymbolRefExpr::VK_PPC_TOCBASE:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]330 Type = ELF::R_PPC64_TOC;
331 break;
332 case MCSymbolRefExpr::VK_None:
333 Type = ELF::R_PPC64_ADDR64;
334 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]335 case MCSymbolRefExpr::VK_PPC_DTPMOD:
336 Type = ELF::R_PPC64_DTPMOD64;
337 break;
338 case MCSymbolRefExpr::VK_PPC_TPREL:
339 Type = ELF::R_PPC64_TPREL64;
340 break;
341 case MCSymbolRefExpr::VK_PPC_DTPREL:
342 Type = ELF::R_PPC64_DTPREL64;
343 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]344 }
345 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]346 case FK_Data_4:
347 Type = ELF::R_PPC_ADDR32;
348 break;
349 case FK_Data_2:
350 Type = ELF::R_PPC_ADDR16;
351 break;
352 }
353 }
354 return Type;
355}
356
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]357unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
358 const MCFixup &Fixup,
359 bool IsPCRel,
360 bool IsRelocWithSymbol,
361 int64_t Addend) const {
362 return getRelocTypeInner(Target, Fixup, IsPCRel);
363}
364
Ulrich Weigand3a758612013-07-01 18:19:56 +0000[diff] [blame]365const MCSymbol *PPCELFObjectWriter::ExplicitRelSym(const MCAssembler &Asm,
366 const MCValue &Target,
367 const MCFragment &F,
368 const MCFixup &Fixup,
369 bool IsPCRel) const {
370 assert(Target.getSymA() && "SymA cannot be 0");
371 MCSymbolRefExpr::VariantKind Modifier = Target.isAbsolute() ?
372 MCSymbolRefExpr::VK_None : Target.getSymA()->getKind();
373
374 bool EmitThisSym;
375 switch (Modifier) {
376 // GOT references always need a relocation, even if the
377 // target symbol is local.
378 case MCSymbolRefExpr::VK_GOT:
379 case MCSymbolRefExpr::VK_PPC_GOT_LO:
380 case MCSymbolRefExpr::VK_PPC_GOT_HI:
381 case MCSymbolRefExpr::VK_PPC_GOT_HA:
382 EmitThisSym = true;
383 break;
384 default:
385 EmitThisSym = false;
386 break;
387 }
388
389 if (EmitThisSym)
390 return &Target.getSymA()->getSymbol().AliasedSymbol();
391 return NULL;
392}
393
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]394const MCSymbol *PPCELFObjectWriter::undefinedExplicitRelSym(const MCValue &Target,
395 const MCFixup &Fixup,
396 bool IsPCRel) const {
397 assert(Target.getSymA() && "SymA cannot be 0");
398 const MCSymbol &Symbol = Target.getSymA()->getSymbol().AliasedSymbol();
399
400 unsigned RelocType = getRelocTypeInner(Target, Fixup, IsPCRel);
401
402 // The .odp creation emits a relocation against the symbol ".TOC." which
403 // create a R_PPC64_TOC relocation. However the relocation symbol name
404 // in final object creation should be NULL, since the symbol does not
405 // really exist, it is just the reference to TOC base for the current
406 // object file.
407 bool EmitThisSym = RelocType != ELF::R_PPC64_TOC;
408
409 if (EmitThisSym && !Symbol.isTemporary())
410 return &Symbol;
411 return NULL;
412}
413
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]414MCObjectWriter *llvm::createPPCELFObjectWriter(raw_ostream &OS,
415 bool Is64Bit,
416 uint8_t OSABI) {
417 MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
Rafael Espindola25009622011-12-22 18:38:06 +0000[diff] [blame]418 return createELFObjectWriter(MOTW, OS, /*IsLittleEndian=*/false);
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]419}