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gerrit-public.fairphone.software / toolchain / llvm-project / 05097246f352eca76207c9ebb08656c88bdf751a / . / llvm / lib / Target / PowerPC / MCTargetDesc / PPCELFObjectWriter.cpp
blob: 44ee9733b16e16d383603609117d46b2c16b808e [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
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]10#include "MCTargetDesc/PPCFixupKinds.h"
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]11#include "MCTargetDesc/PPCMCExpr.h"
Chandler Carruth6bda14b2017-06-06 11:49:48 +0000[diff] [blame]12#include "MCTargetDesc/PPCMCTargetDesc.h"
Bill Schmidta4f89842012-12-14 20:28:38 +0000[diff] [blame]13#include "llvm/ADT/STLExtras.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]14#include "llvm/MC/MCELFObjectWriter.h"
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]15#include "llvm/MC/MCExpr.h"
Lang Hames60fbc7c2017-10-10 16:28:07 +0000[diff] [blame]16#include "llvm/MC/MCObjectWriter.h"
Rafael Espindola95fb9b92015-06-02 20:38:46 +0000[diff] [blame]17#include "llvm/MC/MCSymbolELF.h"
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]18#include "llvm/MC/MCValue.h"
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]19#include "llvm/Support/ErrorHandling.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]20
21using namespace llvm;
22
23namespace {
24 class PPCELFObjectWriter : public MCELFObjectTargetWriter {
25 public:
26 PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI);
27
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]28 protected:
Rafael Espindola8340f942016-01-13 22:56:57 +0000[diff] [blame]29 unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
30 const MCFixup &Fixup, bool IsPCRel) const override;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]31
Rafael Espindolaece40ca2015-05-29 18:26:09 +0000[diff] [blame]32 bool needsRelocateWithSymbol(const MCSymbol &Sym,
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]33 unsigned Type) const override;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]34 };
Alexander Kornienkof00654e2015-06-23 09:49:53 +0000[diff] [blame]35}
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]36
37PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
38 : MCELFObjectTargetWriter(Is64Bit, OSABI,
39 Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
Rafael Espindola25009622011-12-22 18:38:06 +0000[diff] [blame]40 /*HasRelocationAddend*/ true) {}
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]41
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]42static MCSymbolRefExpr::VariantKind getAccessVariant(const MCValue &Target,
43 const MCFixup &Fixup) {
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]44 const MCExpr *Expr = Fixup.getValue();
45
46 if (Expr->getKind() != MCExpr::Target)
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]47 return Target.getAccessVariant();
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]48
49 switch (cast<PPCMCExpr>(Expr)->getKind()) {
50 case PPCMCExpr::VK_PPC_None:
51 return MCSymbolRefExpr::VK_None;
52 case PPCMCExpr::VK_PPC_LO:
53 return MCSymbolRefExpr::VK_PPC_LO;
54 case PPCMCExpr::VK_PPC_HI:
55 return MCSymbolRefExpr::VK_PPC_HI;
56 case PPCMCExpr::VK_PPC_HA:
57 return MCSymbolRefExpr::VK_PPC_HA;
58 case PPCMCExpr::VK_PPC_HIGHERA:
59 return MCSymbolRefExpr::VK_PPC_HIGHERA;
60 case PPCMCExpr::VK_PPC_HIGHER:
61 return MCSymbolRefExpr::VK_PPC_HIGHER;
62 case PPCMCExpr::VK_PPC_HIGHEST:
63 return MCSymbolRefExpr::VK_PPC_HIGHEST;
64 case PPCMCExpr::VK_PPC_HIGHESTA:
65 return MCSymbolRefExpr::VK_PPC_HIGHESTA;
66 }
Alexey Samsonov94bc4222014-03-20 07:30:40 +0000[diff] [blame]67 llvm_unreachable("unknown PPCMCExpr kind");
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]68}
69
Rafael Espindola8340f942016-01-13 22:56:57 +0000[diff] [blame]70unsigned PPCELFObjectWriter::getRelocType(MCContext &Ctx, const MCValue &Target,
Benjamin Kramer8c90fd72014-09-03 11:41:21 +0000[diff] [blame]71 const MCFixup &Fixup,
72 bool IsPCRel) const {
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]73 MCSymbolRefExpr::VariantKind Modifier = getAccessVariant(Target, Fixup);
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]74
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]75 // determine the type of the relocation
76 unsigned Type;
77 if (IsPCRel) {
78 switch ((unsigned)Fixup.getKind()) {
79 default:
80 llvm_unreachable("Unimplemented");
81 case PPC::fixup_ppc_br24:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]82 case PPC::fixup_ppc_br24abs:
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]83 switch (Modifier) {
84 default: llvm_unreachable("Unsupported Modifier");
85 case MCSymbolRefExpr::VK_None:
86 Type = ELF::R_PPC_REL24;
87 break;
88 case MCSymbolRefExpr::VK_PLT:
89 Type = ELF::R_PPC_PLTREL24;
90 break;
Justin Hibbitsa88b6052014-11-12 15:16:30 +0000[diff] [blame]91 case MCSymbolRefExpr::VK_PPC_LOCAL:
92 Type = ELF::R_PPC_LOCAL24PC;
93 break;
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]94 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]95 break;
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]96 case PPC::fixup_ppc_brcond14:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]97 case PPC::fixup_ppc_brcond14abs:
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]98 Type = ELF::R_PPC_REL14;
99 break;
Ulrich Weigand91add7d2013-06-21 14:44:37 +0000[diff] [blame]100 case PPC::fixup_ppc_half16:
101 switch (Modifier) {
102 default: llvm_unreachable("Unsupported Modifier");
103 case MCSymbolRefExpr::VK_None:
104 Type = ELF::R_PPC_REL16;
105 break;
106 case MCSymbolRefExpr::VK_PPC_LO:
107 Type = ELF::R_PPC_REL16_LO;
108 break;
109 case MCSymbolRefExpr::VK_PPC_HI:
110 Type = ELF::R_PPC_REL16_HI;
111 break;
112 case MCSymbolRefExpr::VK_PPC_HA:
113 Type = ELF::R_PPC_REL16_HA;
114 break;
115 }
116 break;
Rafael Espindola850ba462015-12-17 14:19:52 +0000[diff] [blame]117 case PPC::fixup_ppc_half16ds:
118 Target.print(errs());
119 errs() << '\n';
Bill Schmidtde1dc9c2015-10-22 15:53:44 +0000[diff] [blame]120 report_fatal_error("Invalid PC-relative half16ds relocation");
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]121 case FK_Data_4:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]122 case FK_PCRel_4:
123 Type = ELF::R_PPC_REL32;
124 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]125 case FK_Data_8:
126 case FK_PCRel_8:
127 Type = ELF::R_PPC64_REL64;
128 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]129 }
130 } else {
131 switch ((unsigned)Fixup.getKind()) {
132 default: llvm_unreachable("invalid fixup kind!");
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]133 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]134 Type = ELF::R_PPC_ADDR24;
135 break;
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]136 case PPC::fixup_ppc_brcond14abs:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]137 Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]138 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]139 case PPC::fixup_ppc_half16:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]140 switch (Modifier) {
141 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]142 case MCSymbolRefExpr::VK_None:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]143 Type = ELF::R_PPC_ADDR16;
144 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]145 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]146 Type = ELF::R_PPC_ADDR16_LO;
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]147 break;
Ulrich Weigande67c5652013-06-21 14:42:49 +0000[diff] [blame]148 case MCSymbolRefExpr::VK_PPC_HI:
149 Type = ELF::R_PPC_ADDR16_HI;
150 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]151 case MCSymbolRefExpr::VK_PPC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]152 Type = ELF::R_PPC_ADDR16_HA;
153 break;
Ulrich Weigande9126f52013-06-21 14:43:42 +0000[diff] [blame]154 case MCSymbolRefExpr::VK_PPC_HIGHER:
155 Type = ELF::R_PPC64_ADDR16_HIGHER;
156 break;
157 case MCSymbolRefExpr::VK_PPC_HIGHERA:
158 Type = ELF::R_PPC64_ADDR16_HIGHERA;
159 break;
160 case MCSymbolRefExpr::VK_PPC_HIGHEST:
161 Type = ELF::R_PPC64_ADDR16_HIGHEST;
162 break;
163 case MCSymbolRefExpr::VK_PPC_HIGHESTA:
164 Type = ELF::R_PPC64_ADDR16_HIGHESTA;
165 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]166 case MCSymbolRefExpr::VK_GOT:
167 Type = ELF::R_PPC_GOT16;
168 break;
169 case MCSymbolRefExpr::VK_PPC_GOT_LO:
170 Type = ELF::R_PPC_GOT16_LO;
171 break;
172 case MCSymbolRefExpr::VK_PPC_GOT_HI:
173 Type = ELF::R_PPC_GOT16_HI;
174 break;
175 case MCSymbolRefExpr::VK_PPC_GOT_HA:
176 Type = ELF::R_PPC_GOT16_HA;
177 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]178 case MCSymbolRefExpr::VK_PPC_TOC:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]179 Type = ELF::R_PPC64_TOC16;
180 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]181 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]182 Type = ELF::R_PPC64_TOC16_LO;
183 break;
Ulrich Weigand72ddbd62013-06-21 14:43:10 +0000[diff] [blame]184 case MCSymbolRefExpr::VK_PPC_TOC_HI:
185 Type = ELF::R_PPC64_TOC16_HI;
186 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]187 case MCSymbolRefExpr::VK_PPC_TOC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]188 Type = ELF::R_PPC64_TOC16_HA;
189 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]190 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]191 Type = ELF::R_PPC_TPREL16;
192 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]193 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]194 Type = ELF::R_PPC_TPREL16_LO;
195 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]196 case MCSymbolRefExpr::VK_PPC_TPREL_HI:
197 Type = ELF::R_PPC_TPREL16_HI;
198 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]199 case MCSymbolRefExpr::VK_PPC_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]200 Type = ELF::R_PPC_TPREL16_HA;
201 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]202 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER:
203 Type = ELF::R_PPC64_TPREL16_HIGHER;
204 break;
205 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA:
206 Type = ELF::R_PPC64_TPREL16_HIGHERA;
207 break;
208 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST:
209 Type = ELF::R_PPC64_TPREL16_HIGHEST;
210 break;
211 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA:
212 Type = ELF::R_PPC64_TPREL16_HIGHESTA;
213 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]214 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]215 Type = ELF::R_PPC64_DTPREL16;
216 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]217 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]218 Type = ELF::R_PPC64_DTPREL16_LO;
219 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]220 case MCSymbolRefExpr::VK_PPC_DTPREL_HI:
221 Type = ELF::R_PPC64_DTPREL16_HI;
222 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]223 case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]224 Type = ELF::R_PPC64_DTPREL16_HA;
225 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]226 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER:
227 Type = ELF::R_PPC64_DTPREL16_HIGHER;
228 break;
229 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA:
230 Type = ELF::R_PPC64_DTPREL16_HIGHERA;
231 break;
232 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST:
233 Type = ELF::R_PPC64_DTPREL16_HIGHEST;
234 break;
235 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA:
236 Type = ELF::R_PPC64_DTPREL16_HIGHESTA;
237 break;
238 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]239 if (is64Bit())
240 Type = ELF::R_PPC64_GOT_TLSGD16;
241 else
242 Type = ELF::R_PPC_GOT_TLSGD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]243 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]244 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]245 Type = ELF::R_PPC64_GOT_TLSGD16_LO;
246 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]247 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI:
248 Type = ELF::R_PPC64_GOT_TLSGD16_HI;
249 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]250 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]251 Type = ELF::R_PPC64_GOT_TLSGD16_HA;
252 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]253 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]254 if (is64Bit())
255 Type = ELF::R_PPC64_GOT_TLSLD16;
256 else
257 Type = ELF::R_PPC_GOT_TLSLD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]258 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]259 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]260 Type = ELF::R_PPC64_GOT_TLSLD16_LO;
261 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]262 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI:
263 Type = ELF::R_PPC64_GOT_TLSLD16_HI;
264 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]265 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]266 Type = ELF::R_PPC64_GOT_TLSLD16_HA;
267 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]268 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
269 /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
270 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
271 Type = ELF::R_PPC64_GOT_TPREL16_DS;
272 break;
273 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
274 /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
275 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
276 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
277 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]278 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
279 Type = ELF::R_PPC64_GOT_TPREL16_HI;
280 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]281 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
282 /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
283 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
284 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
285 break;
286 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
287 /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
288 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
289 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
290 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]291 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]292 Type = ELF::R_PPC64_GOT_TPREL16_HA;
293 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]294 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI:
295 Type = ELF::R_PPC64_GOT_DTPREL16_HI;
296 break;
297 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA:
298 Type = ELF::R_PPC64_GOT_DTPREL16_HA;
299 break;
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]300 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]301 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]302 case PPC::fixup_ppc_half16ds:
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]303 switch (Modifier) {
304 default: llvm_unreachable("Unsupported Modifier");
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]305 case MCSymbolRefExpr::VK_None:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]306 Type = ELF::R_PPC64_ADDR16_DS;
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]307 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]308 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]309 Type = ELF::R_PPC64_ADDR16_LO_DS;
310 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]311 case MCSymbolRefExpr::VK_GOT:
312 Type = ELF::R_PPC64_GOT16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]313 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]314 case MCSymbolRefExpr::VK_PPC_GOT_LO:
315 Type = ELF::R_PPC64_GOT16_LO_DS;
316 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]317 case MCSymbolRefExpr::VK_PPC_TOC:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]318 Type = ELF::R_PPC64_TOC16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]319 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]320 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]321 Type = ELF::R_PPC64_TOC16_LO_DS;
322 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]323 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]324 Type = ELF::R_PPC64_TPREL16_DS;
325 break;
326 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
327 Type = ELF::R_PPC64_TPREL16_LO_DS;
328 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]329 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]330 Type = ELF::R_PPC64_DTPREL16_DS;
331 break;
332 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
333 Type = ELF::R_PPC64_DTPREL16_LO_DS;
334 break;
335 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
336 Type = ELF::R_PPC64_GOT_TPREL16_DS;
337 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]338 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
Bill Schmidt9f0b4ec2012-12-14 17:02:38 +0000[diff] [blame]339 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
Bill Schmidtca4a0c92012-12-04 16:18:08 +0000[diff] [blame]340 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]341 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
342 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
343 break;
344 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
345 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
346 break;
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]347 }
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]348 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]349 case PPC::fixup_ppc_nofixup:
350 switch (Modifier) {
351 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]352 case MCSymbolRefExpr::VK_PPC_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]353 if (is64Bit())
354 Type = ELF::R_PPC64_TLSGD;
355 else
356 Type = ELF::R_PPC_TLSGD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]357 break;
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]358 case MCSymbolRefExpr::VK_PPC_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]359 if (is64Bit())
360 Type = ELF::R_PPC64_TLSLD;
361 else
362 Type = ELF::R_PPC_TLSLD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]363 break;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]364 case MCSymbolRefExpr::VK_PPC_TLS:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]365 if (is64Bit())
366 Type = ELF::R_PPC64_TLS;
367 else
368 Type = ELF::R_PPC_TLS;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]369 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]370 }
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]371 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]372 case FK_Data_8:
373 switch (Modifier) {
374 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand68e2e1b2013-06-20 22:39:42 +0000[diff] [blame]375 case MCSymbolRefExpr::VK_PPC_TOCBASE:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]376 Type = ELF::R_PPC64_TOC;
377 break;
378 case MCSymbolRefExpr::VK_None:
379 Type = ELF::R_PPC64_ADDR64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]380 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]381 case MCSymbolRefExpr::VK_PPC_DTPMOD:
382 Type = ELF::R_PPC64_DTPMOD64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]383 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]384 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]385 Type = ELF::R_PPC64_TPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]386 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]387 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]388 Type = ELF::R_PPC64_DTPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]389 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]390 }
391 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]392 case FK_Data_4:
393 Type = ELF::R_PPC_ADDR32;
394 break;
395 case FK_Data_2:
396 Type = ELF::R_PPC_ADDR16;
397 break;
398 }
399 }
400 return Type;
401}
402
Rafael Espindolaece40ca2015-05-29 18:26:09 +0000[diff] [blame]403bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]404 unsigned Type) const {
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]405 switch (Type) {
406 default:
407 return false;
408
409 case ELF::R_PPC_REL24:
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]410 // If the target symbol has a local entry point, we must keep the
411 // target symbol to preserve that information for the linker.
412 // The "other" values are stored in the last 6 bits of the second byte.
413 // The traditional defines for STO values assume the full byte and thus
414 // the shift to pack it.
Rafael Espindola95fb9b92015-06-02 20:38:46 +0000[diff] [blame]415 unsigned Other = cast<MCSymbolELF>(Sym).getOther() << 2;
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]416 return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]417 }
418}
419
Lang Hames60fbc7c2017-10-10 16:28:07 +0000[diff] [blame]420std::unique_ptr<MCObjectWriter>
421llvm::createPPCELFObjectWriter(raw_pwrite_stream &OS, bool Is64Bit,
422 bool IsLittleEndian, uint8_t OSABI) {
Lang Hamesdcb312b2017-10-09 23:53:15 +0000[diff] [blame]423 auto MOTW = llvm::make_unique<PPCELFObjectWriter>(Is64Bit, OSABI);
424 return createELFObjectWriter(std::move(MOTW), OS, IsLittleEndian);
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]425}