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gerrit-public.fairphone.software / toolchain / llvm-project / d6827ce3a35e3670b11c703ed25201728503e26c / . / llvm / lib / Target / PowerPC / MCTargetDesc / PPCELFObjectWriter.cpp
blob: aa7b05b0198598647b837be7ecdf9746661bc136 [file] [log] [blame]
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]1//===-- PPCELFObjectWriter.cpp - PPC ELF Writer ---------------------------===//
2//
Chandler Carruth2946cd72019-01-19 08:50:56 +0000[diff] [blame]3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]6//
7//===----------------------------------------------------------------------===//
8
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]9#include "MCTargetDesc/PPCFixupKinds.h"
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]10#include "MCTargetDesc/PPCMCExpr.h"
Chandler Carruth6bda14b2017-06-06 11:49:48 +0000[diff] [blame]11#include "MCTargetDesc/PPCMCTargetDesc.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"
Lang Hames60fbc7c2017-10-10 16:28:07 +0000[diff] [blame]15#include "llvm/MC/MCObjectWriter.h"
Rafael Espindola95fb9b92015-06-02 20:38:46 +0000[diff] [blame]16#include "llvm/MC/MCSymbolELF.h"
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]17#include "llvm/MC/MCValue.h"
Chandler Carruthed0881b2012-12-03 16:50:05 +0000[diff] [blame]18#include "llvm/Support/ErrorHandling.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]19
20using namespace llvm;
21
22namespace {
23 class PPCELFObjectWriter : public MCELFObjectTargetWriter {
24 public:
25 PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI);
26
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]27 protected:
Rafael Espindola8340f942016-01-13 22:56:57 +0000[diff] [blame]28 unsigned getRelocType(MCContext &Ctx, const MCValue &Target,
29 const MCFixup &Fixup, bool IsPCRel) const override;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]30
Rafael Espindolaece40ca2015-05-29 18:26:09 +0000[diff] [blame]31 bool needsRelocateWithSymbol(const MCSymbol &Sym,
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]32 unsigned Type) const override;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]33 };
Alexander Kornienkof00654e2015-06-23 09:49:53 +0000[diff] [blame]34}
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]35
36PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI)
37 : MCELFObjectTargetWriter(Is64Bit, OSABI,
38 Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC,
Rafael Espindola25009622011-12-22 18:38:06 +0000[diff] [blame]39 /*HasRelocationAddend*/ true) {}
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]40
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]41static MCSymbolRefExpr::VariantKind getAccessVariant(const MCValue &Target,
42 const MCFixup &Fixup) {
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]43 const MCExpr *Expr = Fixup.getValue();
44
45 if (Expr->getKind() != MCExpr::Target)
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]46 return Target.getAccessVariant();
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]47
48 switch (cast<PPCMCExpr>(Expr)->getKind()) {
49 case PPCMCExpr::VK_PPC_None:
50 return MCSymbolRefExpr::VK_None;
51 case PPCMCExpr::VK_PPC_LO:
52 return MCSymbolRefExpr::VK_PPC_LO;
53 case PPCMCExpr::VK_PPC_HI:
54 return MCSymbolRefExpr::VK_PPC_HI;
55 case PPCMCExpr::VK_PPC_HA:
56 return MCSymbolRefExpr::VK_PPC_HA;
Sean Fertile80b8f822018-06-15 19:47:11 +0000[diff] [blame]57 case PPCMCExpr::VK_PPC_HIGH:
58 return MCSymbolRefExpr::VK_PPC_HIGH;
59 case PPCMCExpr::VK_PPC_HIGHA:
60 return MCSymbolRefExpr::VK_PPC_HIGHA;
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]61 case PPCMCExpr::VK_PPC_HIGHERA:
62 return MCSymbolRefExpr::VK_PPC_HIGHERA;
63 case PPCMCExpr::VK_PPC_HIGHER:
64 return MCSymbolRefExpr::VK_PPC_HIGHER;
65 case PPCMCExpr::VK_PPC_HIGHEST:
66 return MCSymbolRefExpr::VK_PPC_HIGHEST;
67 case PPCMCExpr::VK_PPC_HIGHESTA:
68 return MCSymbolRefExpr::VK_PPC_HIGHESTA;
69 }
Alexey Samsonov94bc4222014-03-20 07:30:40 +0000[diff] [blame]70 llvm_unreachable("unknown PPCMCExpr kind");
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]71}
72
Rafael Espindola8340f942016-01-13 22:56:57 +0000[diff] [blame]73unsigned PPCELFObjectWriter::getRelocType(MCContext &Ctx, const MCValue &Target,
Benjamin Kramer8c90fd72014-09-03 11:41:21 +0000[diff] [blame]74 const MCFixup &Fixup,
75 bool IsPCRel) const {
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]76 MCSymbolRefExpr::VariantKind Modifier = getAccessVariant(Target, Fixup);
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]77
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]78 // determine the type of the relocation
79 unsigned Type;
80 if (IsPCRel) {
81 switch ((unsigned)Fixup.getKind()) {
82 default:
83 llvm_unreachable("Unimplemented");
84 case PPC::fixup_ppc_br24:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]85 case PPC::fixup_ppc_br24abs:
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]86 switch (Modifier) {
87 default: llvm_unreachable("Unsupported Modifier");
88 case MCSymbolRefExpr::VK_None:
89 Type = ELF::R_PPC_REL24;
90 break;
91 case MCSymbolRefExpr::VK_PLT:
92 Type = ELF::R_PPC_PLTREL24;
93 break;
Justin Hibbitsa88b6052014-11-12 15:16:30 +0000[diff] [blame]94 case MCSymbolRefExpr::VK_PPC_LOCAL:
95 Type = ELF::R_PPC_LOCAL24PC;
96 break;
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]97 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]98 break;
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]99 case PPC::fixup_ppc_brcond14:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]100 case PPC::fixup_ppc_brcond14abs:
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]101 Type = ELF::R_PPC_REL14;
102 break;
Ulrich Weigand91add7d2013-06-21 14:44:37 +0000[diff] [blame]103 case PPC::fixup_ppc_half16:
104 switch (Modifier) {
105 default: llvm_unreachable("Unsupported Modifier");
106 case MCSymbolRefExpr::VK_None:
107 Type = ELF::R_PPC_REL16;
108 break;
109 case MCSymbolRefExpr::VK_PPC_LO:
110 Type = ELF::R_PPC_REL16_LO;
111 break;
112 case MCSymbolRefExpr::VK_PPC_HI:
113 Type = ELF::R_PPC_REL16_HI;
114 break;
115 case MCSymbolRefExpr::VK_PPC_HA:
116 Type = ELF::R_PPC_REL16_HA;
117 break;
118 }
119 break;
Rafael Espindola850ba462015-12-17 14:19:52 +0000[diff] [blame]120 case PPC::fixup_ppc_half16ds:
121 Target.print(errs());
122 errs() << '\n';
Bill Schmidtde1dc9c2015-10-22 15:53:44 +0000[diff] [blame]123 report_fatal_error("Invalid PC-relative half16ds relocation");
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]124 case FK_Data_4:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]125 case FK_PCRel_4:
126 Type = ELF::R_PPC_REL32;
127 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]128 case FK_Data_8:
129 case FK_PCRel_8:
130 Type = ELF::R_PPC64_REL64;
131 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]132 }
133 } else {
134 switch ((unsigned)Fixup.getKind()) {
135 default: llvm_unreachable("invalid fixup kind!");
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]136 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]137 Type = ELF::R_PPC_ADDR24;
138 break;
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]139 case PPC::fixup_ppc_brcond14abs:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]140 Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]141 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]142 case PPC::fixup_ppc_half16:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]143 switch (Modifier) {
144 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]145 case MCSymbolRefExpr::VK_None:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]146 Type = ELF::R_PPC_ADDR16;
147 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]148 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]149 Type = ELF::R_PPC_ADDR16_LO;
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]150 break;
Ulrich Weigande67c5652013-06-21 14:42:49 +0000[diff] [blame]151 case MCSymbolRefExpr::VK_PPC_HI:
152 Type = ELF::R_PPC_ADDR16_HI;
153 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]154 case MCSymbolRefExpr::VK_PPC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]155 Type = ELF::R_PPC_ADDR16_HA;
156 break;
Sean Fertile80b8f822018-06-15 19:47:11 +0000[diff] [blame]157 case MCSymbolRefExpr::VK_PPC_HIGH:
158 Type = ELF::R_PPC64_ADDR16_HIGH;
159 break;
160 case MCSymbolRefExpr::VK_PPC_HIGHA:
161 Type = ELF::R_PPC64_ADDR16_HIGHA;
162 break;
Ulrich Weigande9126f52013-06-21 14:43:42 +0000[diff] [blame]163 case MCSymbolRefExpr::VK_PPC_HIGHER:
164 Type = ELF::R_PPC64_ADDR16_HIGHER;
165 break;
166 case MCSymbolRefExpr::VK_PPC_HIGHERA:
167 Type = ELF::R_PPC64_ADDR16_HIGHERA;
168 break;
169 case MCSymbolRefExpr::VK_PPC_HIGHEST:
170 Type = ELF::R_PPC64_ADDR16_HIGHEST;
171 break;
172 case MCSymbolRefExpr::VK_PPC_HIGHESTA:
173 Type = ELF::R_PPC64_ADDR16_HIGHESTA;
174 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]175 case MCSymbolRefExpr::VK_GOT:
176 Type = ELF::R_PPC_GOT16;
177 break;
178 case MCSymbolRefExpr::VK_PPC_GOT_LO:
179 Type = ELF::R_PPC_GOT16_LO;
180 break;
181 case MCSymbolRefExpr::VK_PPC_GOT_HI:
182 Type = ELF::R_PPC_GOT16_HI;
183 break;
184 case MCSymbolRefExpr::VK_PPC_GOT_HA:
185 Type = ELF::R_PPC_GOT16_HA;
186 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]187 case MCSymbolRefExpr::VK_PPC_TOC:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]188 Type = ELF::R_PPC64_TOC16;
189 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]190 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]191 Type = ELF::R_PPC64_TOC16_LO;
192 break;
Ulrich Weigand72ddbd62013-06-21 14:43:10 +0000[diff] [blame]193 case MCSymbolRefExpr::VK_PPC_TOC_HI:
194 Type = ELF::R_PPC64_TOC16_HI;
195 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]196 case MCSymbolRefExpr::VK_PPC_TOC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]197 Type = ELF::R_PPC64_TOC16_HA;
198 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]199 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]200 Type = ELF::R_PPC_TPREL16;
201 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]202 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]203 Type = ELF::R_PPC_TPREL16_LO;
204 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]205 case MCSymbolRefExpr::VK_PPC_TPREL_HI:
206 Type = ELF::R_PPC_TPREL16_HI;
207 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]208 case MCSymbolRefExpr::VK_PPC_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]209 Type = ELF::R_PPC_TPREL16_HA;
210 break;
Sean Fertilecac28ae2018-06-15 19:47:16 +0000[diff] [blame]211 case MCSymbolRefExpr::VK_PPC_TPREL_HIGH:
212 Type = ELF::R_PPC64_TPREL16_HIGH;
213 break;
214 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHA:
215 Type = ELF::R_PPC64_TPREL16_HIGHA;
216 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]217 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER:
218 Type = ELF::R_PPC64_TPREL16_HIGHER;
219 break;
220 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA:
221 Type = ELF::R_PPC64_TPREL16_HIGHERA;
222 break;
223 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST:
224 Type = ELF::R_PPC64_TPREL16_HIGHEST;
225 break;
226 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA:
227 Type = ELF::R_PPC64_TPREL16_HIGHESTA;
228 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]229 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]230 Type = ELF::R_PPC64_DTPREL16;
231 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]232 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]233 Type = ELF::R_PPC64_DTPREL16_LO;
234 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]235 case MCSymbolRefExpr::VK_PPC_DTPREL_HI:
236 Type = ELF::R_PPC64_DTPREL16_HI;
237 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]238 case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]239 Type = ELF::R_PPC64_DTPREL16_HA;
240 break;
Sean Fertilecac28ae2018-06-15 19:47:16 +0000[diff] [blame]241 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGH:
242 Type = ELF::R_PPC64_DTPREL16_HIGH;
243 break;
244 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHA:
245 Type = ELF::R_PPC64_DTPREL16_HIGHA;
246 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]247 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER:
248 Type = ELF::R_PPC64_DTPREL16_HIGHER;
249 break;
250 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA:
251 Type = ELF::R_PPC64_DTPREL16_HIGHERA;
252 break;
253 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST:
254 Type = ELF::R_PPC64_DTPREL16_HIGHEST;
255 break;
256 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA:
257 Type = ELF::R_PPC64_DTPREL16_HIGHESTA;
258 break;
259 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]260 if (is64Bit())
261 Type = ELF::R_PPC64_GOT_TLSGD16;
262 else
263 Type = ELF::R_PPC_GOT_TLSGD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]264 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]265 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]266 Type = ELF::R_PPC64_GOT_TLSGD16_LO;
267 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]268 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI:
269 Type = ELF::R_PPC64_GOT_TLSGD16_HI;
270 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]271 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]272 Type = ELF::R_PPC64_GOT_TLSGD16_HA;
273 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]274 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]275 if (is64Bit())
276 Type = ELF::R_PPC64_GOT_TLSLD16;
277 else
278 Type = ELF::R_PPC_GOT_TLSLD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]279 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]280 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]281 Type = ELF::R_PPC64_GOT_TLSLD16_LO;
282 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]283 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI:
284 Type = ELF::R_PPC64_GOT_TLSLD16_HI;
285 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]286 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]287 Type = ELF::R_PPC64_GOT_TLSLD16_HA;
288 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]289 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
290 /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
291 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
292 Type = ELF::R_PPC64_GOT_TPREL16_DS;
293 break;
294 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
295 /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
296 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
297 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
298 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]299 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
300 Type = ELF::R_PPC64_GOT_TPREL16_HI;
301 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]302 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
303 /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
304 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
305 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
306 break;
307 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
308 /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
309 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
310 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
311 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]312 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]313 Type = ELF::R_PPC64_GOT_TPREL16_HA;
314 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]315 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI:
316 Type = ELF::R_PPC64_GOT_DTPREL16_HI;
317 break;
318 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA:
319 Type = ELF::R_PPC64_GOT_DTPREL16_HA;
320 break;
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]321 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]322 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]323 case PPC::fixup_ppc_half16ds:
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]324 switch (Modifier) {
325 default: llvm_unreachable("Unsupported Modifier");
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]326 case MCSymbolRefExpr::VK_None:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]327 Type = ELF::R_PPC64_ADDR16_DS;
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]328 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]329 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]330 Type = ELF::R_PPC64_ADDR16_LO_DS;
331 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]332 case MCSymbolRefExpr::VK_GOT:
333 Type = ELF::R_PPC64_GOT16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]334 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]335 case MCSymbolRefExpr::VK_PPC_GOT_LO:
336 Type = ELF::R_PPC64_GOT16_LO_DS;
337 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]338 case MCSymbolRefExpr::VK_PPC_TOC:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]339 Type = ELF::R_PPC64_TOC16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]340 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]341 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]342 Type = ELF::R_PPC64_TOC16_LO_DS;
343 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]344 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]345 Type = ELF::R_PPC64_TPREL16_DS;
346 break;
347 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
348 Type = ELF::R_PPC64_TPREL16_LO_DS;
349 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]350 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]351 Type = ELF::R_PPC64_DTPREL16_DS;
352 break;
353 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
354 Type = ELF::R_PPC64_DTPREL16_LO_DS;
355 break;
356 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
357 Type = ELF::R_PPC64_GOT_TPREL16_DS;
358 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]359 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
Bill Schmidt9f0b4ec2012-12-14 17:02:38 +0000[diff] [blame]360 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
Bill Schmidtca4a0c92012-12-04 16:18:08 +0000[diff] [blame]361 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]362 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
363 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
364 break;
365 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
366 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
367 break;
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]368 }
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]369 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]370 case PPC::fixup_ppc_nofixup:
371 switch (Modifier) {
372 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]373 case MCSymbolRefExpr::VK_PPC_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]374 if (is64Bit())
375 Type = ELF::R_PPC64_TLSGD;
376 else
377 Type = ELF::R_PPC_TLSGD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]378 break;
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]379 case MCSymbolRefExpr::VK_PPC_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]380 if (is64Bit())
381 Type = ELF::R_PPC64_TLSLD;
382 else
383 Type = ELF::R_PPC_TLSLD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]384 break;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]385 case MCSymbolRefExpr::VK_PPC_TLS:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]386 if (is64Bit())
387 Type = ELF::R_PPC64_TLS;
388 else
389 Type = ELF::R_PPC_TLS;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]390 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]391 }
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]392 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]393 case FK_Data_8:
394 switch (Modifier) {
395 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand68e2e1b2013-06-20 22:39:42 +0000[diff] [blame]396 case MCSymbolRefExpr::VK_PPC_TOCBASE:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]397 Type = ELF::R_PPC64_TOC;
398 break;
399 case MCSymbolRefExpr::VK_None:
400 Type = ELF::R_PPC64_ADDR64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]401 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]402 case MCSymbolRefExpr::VK_PPC_DTPMOD:
403 Type = ELF::R_PPC64_DTPMOD64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]404 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]405 case MCSymbolRefExpr::VK_TPREL:
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]406 Type = ELF::R_PPC64_TPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]407 break;
Colin LeMahieu0e051922016-02-10 18:32:01 +0000[diff] [blame]408 case MCSymbolRefExpr::VK_DTPREL:
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]409 Type = ELF::R_PPC64_DTPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]410 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]411 }
412 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]413 case FK_Data_4:
414 Type = ELF::R_PPC_ADDR32;
415 break;
416 case FK_Data_2:
417 Type = ELF::R_PPC_ADDR16;
418 break;
419 }
420 }
421 return Type;
422}
423
Rafael Espindolaece40ca2015-05-29 18:26:09 +0000[diff] [blame]424bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]425 unsigned Type) const {
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]426 switch (Type) {
427 default:
428 return false;
429
430 case ELF::R_PPC_REL24:
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]431 // If the target symbol has a local entry point, we must keep the
432 // target symbol to preserve that information for the linker.
433 // The "other" values are stored in the last 6 bits of the second byte.
434 // The traditional defines for STO values assume the full byte and thus
435 // the shift to pack it.
Rafael Espindola95fb9b92015-06-02 20:38:46 +0000[diff] [blame]436 unsigned Other = cast<MCSymbolELF>(Sym).getOther() << 2;
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]437 return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]438 }
439}
440
Peter Collingbournedcd7d6c2018-05-21 19:20:29 +0000[diff] [blame]441std::unique_ptr<MCObjectTargetWriter>
442llvm::createPPCELFObjectWriter(bool Is64Bit, uint8_t OSABI) {
443 return llvm::make_unique<PPCELFObjectWriter>(Is64Bit, OSABI);
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]444}