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gerrit-public.fairphone.software / toolchain / llvm-project / de1dc9c98f9ce74d38aceb44e00d258370d1bb34 / . / llvm / lib / Target / PowerPC / MCTargetDesc / PPCELFObjectWriter.cpp
blob: 75ba12b5a83b235e225ce41da0cbcc507cfb46f1 [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"
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]12#include "MCTargetDesc/PPCMCExpr.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"
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 Espindola9ab38012014-03-27 20:41:17 +0000[diff] [blame]28 unsigned GetRelocType(const MCValue &Target, const MCFixup &Fixup,
Rafael Espindolac03f44c2014-03-27 20:49:35 +0000[diff] [blame]29 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;
57 case PPCMCExpr::VK_PPC_HIGHERA:
58 return MCSymbolRefExpr::VK_PPC_HIGHERA;
59 case PPCMCExpr::VK_PPC_HIGHER:
60 return MCSymbolRefExpr::VK_PPC_HIGHER;
61 case PPCMCExpr::VK_PPC_HIGHEST:
62 return MCSymbolRefExpr::VK_PPC_HIGHEST;
63 case PPCMCExpr::VK_PPC_HIGHESTA:
64 return MCSymbolRefExpr::VK_PPC_HIGHESTA;
65 }
Alexey Samsonov94bc4222014-03-20 07:30:40 +0000[diff] [blame]66 llvm_unreachable("unknown PPCMCExpr kind");
Rafael Espindola7fadc0e2014-03-20 02:12:01 +0000[diff] [blame]67}
68
Benjamin Kramer8c90fd72014-09-03 11:41:21 +0000[diff] [blame]69unsigned PPCELFObjectWriter::GetRelocType(const MCValue &Target,
70 const MCFixup &Fixup,
71 bool IsPCRel) const {
Rafael Espindola3d082fa2014-05-03 19:57:04 +0000[diff] [blame]72 MCSymbolRefExpr::VariantKind Modifier = getAccessVariant(Target, Fixup);
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]73
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]74 // determine the type of the relocation
75 unsigned Type;
76 if (IsPCRel) {
77 switch ((unsigned)Fixup.getKind()) {
78 default:
79 llvm_unreachable("Unimplemented");
80 case PPC::fixup_ppc_br24:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]81 case PPC::fixup_ppc_br24abs:
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]82 switch (Modifier) {
83 default: llvm_unreachable("Unsupported Modifier");
84 case MCSymbolRefExpr::VK_None:
85 Type = ELF::R_PPC_REL24;
86 break;
87 case MCSymbolRefExpr::VK_PLT:
88 Type = ELF::R_PPC_PLTREL24;
89 break;
Justin Hibbitsa88b6052014-11-12 15:16:30 +0000[diff] [blame]90 case MCSymbolRefExpr::VK_PPC_LOCAL:
91 Type = ELF::R_PPC_LOCAL24PC;
92 break;
Hal Finkel3ee2af72014-07-18 23:29:49 +0000[diff] [blame]93 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]94 break;
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]95 case PPC::fixup_ppc_brcond14:
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]96 case PPC::fixup_ppc_brcond14abs:
Ulrich Weigand72a7dc02013-04-26 15:38:30 +0000[diff] [blame]97 Type = ELF::R_PPC_REL14;
98 break;
Ulrich Weigand91add7d2013-06-21 14:44:37 +0000[diff] [blame]99 case PPC::fixup_ppc_half16:
100 switch (Modifier) {
101 default: llvm_unreachable("Unsupported Modifier");
102 case MCSymbolRefExpr::VK_None:
103 Type = ELF::R_PPC_REL16;
104 break;
105 case MCSymbolRefExpr::VK_PPC_LO:
106 Type = ELF::R_PPC_REL16_LO;
107 break;
108 case MCSymbolRefExpr::VK_PPC_HI:
109 Type = ELF::R_PPC_REL16_HI;
110 break;
111 case MCSymbolRefExpr::VK_PPC_HA:
112 Type = ELF::R_PPC_REL16_HA;
113 break;
114 }
115 break;
Bill Schmidtde1dc9c2015-10-22 15:53:44 +0000[diff] [blame^]116 case PPC::fixup_ppc_half16ds: {
117 raw_ostream &OS = *(new raw_fd_ostream(2, false));
118 Target.print(OS);
119 OS << "\n";
120 report_fatal_error("Invalid PC-relative half16ds relocation");
121 break;
122 }
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]123 case FK_Data_4:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]124 case FK_PCRel_4:
125 Type = ELF::R_PPC_REL32;
126 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]127 case FK_Data_8:
128 case FK_PCRel_8:
129 Type = ELF::R_PPC64_REL64;
130 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]131 }
132 } else {
133 switch ((unsigned)Fixup.getKind()) {
134 default: llvm_unreachable("invalid fixup kind!");
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]135 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]136 Type = ELF::R_PPC_ADDR24;
137 break;
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]138 case PPC::fixup_ppc_brcond14abs:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]139 Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]140 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]141 case PPC::fixup_ppc_half16:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]142 switch (Modifier) {
143 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]144 case MCSymbolRefExpr::VK_None:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]145 Type = ELF::R_PPC_ADDR16;
146 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]147 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]148 Type = ELF::R_PPC_ADDR16_LO;
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]149 break;
Ulrich Weigande67c5652013-06-21 14:42:49 +0000[diff] [blame]150 case MCSymbolRefExpr::VK_PPC_HI:
151 Type = ELF::R_PPC_ADDR16_HI;
152 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]153 case MCSymbolRefExpr::VK_PPC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]154 Type = ELF::R_PPC_ADDR16_HA;
155 break;
Ulrich Weigande9126f52013-06-21 14:43:42 +0000[diff] [blame]156 case MCSymbolRefExpr::VK_PPC_HIGHER:
157 Type = ELF::R_PPC64_ADDR16_HIGHER;
158 break;
159 case MCSymbolRefExpr::VK_PPC_HIGHERA:
160 Type = ELF::R_PPC64_ADDR16_HIGHERA;
161 break;
162 case MCSymbolRefExpr::VK_PPC_HIGHEST:
163 Type = ELF::R_PPC64_ADDR16_HIGHEST;
164 break;
165 case MCSymbolRefExpr::VK_PPC_HIGHESTA:
166 Type = ELF::R_PPC64_ADDR16_HIGHESTA;
167 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]168 case MCSymbolRefExpr::VK_GOT:
169 Type = ELF::R_PPC_GOT16;
170 break;
171 case MCSymbolRefExpr::VK_PPC_GOT_LO:
172 Type = ELF::R_PPC_GOT16_LO;
173 break;
174 case MCSymbolRefExpr::VK_PPC_GOT_HI:
175 Type = ELF::R_PPC_GOT16_HI;
176 break;
177 case MCSymbolRefExpr::VK_PPC_GOT_HA:
178 Type = ELF::R_PPC_GOT16_HA;
179 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]180 case MCSymbolRefExpr::VK_PPC_TOC:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]181 Type = ELF::R_PPC64_TOC16;
182 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]183 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]184 Type = ELF::R_PPC64_TOC16_LO;
185 break;
Ulrich Weigand72ddbd62013-06-21 14:43:10 +0000[diff] [blame]186 case MCSymbolRefExpr::VK_PPC_TOC_HI:
187 Type = ELF::R_PPC64_TOC16_HI;
188 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]189 case MCSymbolRefExpr::VK_PPC_TOC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]190 Type = ELF::R_PPC64_TOC16_HA;
191 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]192 case MCSymbolRefExpr::VK_PPC_TPREL:
193 Type = ELF::R_PPC_TPREL16;
194 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]195 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]196 Type = ELF::R_PPC_TPREL16_LO;
197 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]198 case MCSymbolRefExpr::VK_PPC_TPREL_HI:
199 Type = ELF::R_PPC_TPREL16_HI;
200 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]201 case MCSymbolRefExpr::VK_PPC_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]202 Type = ELF::R_PPC_TPREL16_HA;
203 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]204 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER:
205 Type = ELF::R_PPC64_TPREL16_HIGHER;
206 break;
207 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA:
208 Type = ELF::R_PPC64_TPREL16_HIGHERA;
209 break;
210 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST:
211 Type = ELF::R_PPC64_TPREL16_HIGHEST;
212 break;
213 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA:
214 Type = ELF::R_PPC64_TPREL16_HIGHESTA;
215 break;
216 case MCSymbolRefExpr::VK_PPC_DTPREL:
217 Type = ELF::R_PPC64_DTPREL16;
218 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]219 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]220 Type = ELF::R_PPC64_DTPREL16_LO;
221 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]222 case MCSymbolRefExpr::VK_PPC_DTPREL_HI:
223 Type = ELF::R_PPC64_DTPREL16_HI;
224 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]225 case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]226 Type = ELF::R_PPC64_DTPREL16_HA;
227 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]228 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER:
229 Type = ELF::R_PPC64_DTPREL16_HIGHER;
230 break;
231 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA:
232 Type = ELF::R_PPC64_DTPREL16_HIGHERA;
233 break;
234 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST:
235 Type = ELF::R_PPC64_DTPREL16_HIGHEST;
236 break;
237 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA:
238 Type = ELF::R_PPC64_DTPREL16_HIGHESTA;
239 break;
240 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]241 if (is64Bit())
242 Type = ELF::R_PPC64_GOT_TLSGD16;
243 else
244 Type = ELF::R_PPC_GOT_TLSGD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]245 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]246 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]247 Type = ELF::R_PPC64_GOT_TLSGD16_LO;
248 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]249 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI:
250 Type = ELF::R_PPC64_GOT_TLSGD16_HI;
251 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]252 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]253 Type = ELF::R_PPC64_GOT_TLSGD16_HA;
254 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]255 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]256 if (is64Bit())
257 Type = ELF::R_PPC64_GOT_TLSLD16;
258 else
259 Type = ELF::R_PPC_GOT_TLSLD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]260 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]261 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]262 Type = ELF::R_PPC64_GOT_TLSLD16_LO;
263 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]264 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI:
265 Type = ELF::R_PPC64_GOT_TLSLD16_HI;
266 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]267 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]268 Type = ELF::R_PPC64_GOT_TLSLD16_HA;
269 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]270 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
271 /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
272 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
273 Type = ELF::R_PPC64_GOT_TPREL16_DS;
274 break;
275 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
276 /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
277 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
278 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
279 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]280 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
281 Type = ELF::R_PPC64_GOT_TPREL16_HI;
282 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]283 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
284 /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
285 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
286 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
287 break;
288 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
289 /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
290 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
291 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
292 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]293 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]294 Type = ELF::R_PPC64_GOT_TPREL16_HA;
295 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]296 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI:
297 Type = ELF::R_PPC64_GOT_DTPREL16_HI;
298 break;
299 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA:
300 Type = ELF::R_PPC64_GOT_DTPREL16_HA;
301 break;
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]302 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]303 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]304 case PPC::fixup_ppc_half16ds:
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]305 switch (Modifier) {
306 default: llvm_unreachable("Unsupported Modifier");
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]307 case MCSymbolRefExpr::VK_None:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]308 Type = ELF::R_PPC64_ADDR16_DS;
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]309 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]310 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]311 Type = ELF::R_PPC64_ADDR16_LO_DS;
312 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]313 case MCSymbolRefExpr::VK_GOT:
314 Type = ELF::R_PPC64_GOT16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]315 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]316 case MCSymbolRefExpr::VK_PPC_GOT_LO:
317 Type = ELF::R_PPC64_GOT16_LO_DS;
318 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]319 case MCSymbolRefExpr::VK_PPC_TOC:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]320 Type = ELF::R_PPC64_TOC16_DS;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]321 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]322 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]323 Type = ELF::R_PPC64_TOC16_LO_DS;
324 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]325 case MCSymbolRefExpr::VK_PPC_TPREL:
326 Type = ELF::R_PPC64_TPREL16_DS;
327 break;
328 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
329 Type = ELF::R_PPC64_TPREL16_LO_DS;
330 break;
331 case MCSymbolRefExpr::VK_PPC_DTPREL:
332 Type = ELF::R_PPC64_DTPREL16_DS;
333 break;
334 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
335 Type = ELF::R_PPC64_DTPREL16_LO_DS;
336 break;
337 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
338 Type = ELF::R_PPC64_GOT_TPREL16_DS;
339 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]340 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
Bill Schmidt9f0b4ec2012-12-14 17:02:38 +0000[diff] [blame]341 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
Bill Schmidtca4a0c92012-12-04 16:18:08 +0000[diff] [blame]342 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]343 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
344 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
345 break;
346 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
347 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
348 break;
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]349 }
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]350 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]351 case PPC::fixup_ppc_nofixup:
352 switch (Modifier) {
353 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]354 case MCSymbolRefExpr::VK_PPC_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]355 if (is64Bit())
356 Type = ELF::R_PPC64_TLSGD;
357 else
358 Type = ELF::R_PPC_TLSGD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]359 break;
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]360 case MCSymbolRefExpr::VK_PPC_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]361 if (is64Bit())
362 Type = ELF::R_PPC64_TLSLD;
363 else
364 Type = ELF::R_PPC_TLSLD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]365 break;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]366 case MCSymbolRefExpr::VK_PPC_TLS:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]367 if (is64Bit())
368 Type = ELF::R_PPC64_TLS;
369 else
370 Type = ELF::R_PPC_TLS;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]371 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]372 }
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]373 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]374 case FK_Data_8:
375 switch (Modifier) {
376 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand68e2e1b2013-06-20 22:39:42 +0000[diff] [blame]377 case MCSymbolRefExpr::VK_PPC_TOCBASE:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]378 Type = ELF::R_PPC64_TOC;
379 break;
380 case MCSymbolRefExpr::VK_None:
381 Type = ELF::R_PPC64_ADDR64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]382 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]383 case MCSymbolRefExpr::VK_PPC_DTPMOD:
384 Type = ELF::R_PPC64_DTPMOD64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]385 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]386 case MCSymbolRefExpr::VK_PPC_TPREL:
387 Type = ELF::R_PPC64_TPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]388 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]389 case MCSymbolRefExpr::VK_PPC_DTPREL:
390 Type = ELF::R_PPC64_DTPREL64;
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]391 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]392 }
393 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]394 case FK_Data_4:
395 Type = ELF::R_PPC_ADDR32;
396 break;
397 case FK_Data_2:
398 Type = ELF::R_PPC_ADDR16;
399 break;
400 }
401 }
402 return Type;
403}
404
Rafael Espindolaece40ca2015-05-29 18:26:09 +0000[diff] [blame]405bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym,
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]406 unsigned Type) const {
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]407 switch (Type) {
408 default:
409 return false;
410
411 case ELF::R_PPC_REL24:
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]412 // If the target symbol has a local entry point, we must keep the
413 // target symbol to preserve that information for the linker.
414 // The "other" values are stored in the last 6 bits of the second byte.
415 // The traditional defines for STO values assume the full byte and thus
416 // the shift to pack it.
Rafael Espindola95fb9b92015-06-02 20:38:46 +0000[diff] [blame]417 unsigned Other = cast<MCSymbolELF>(Sym).getOther() << 2;
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]418 return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]419 }
420}
421
Rafael Espindola5560a4c2015-04-14 22:14:34 +0000[diff] [blame]422MCObjectWriter *llvm::createPPCELFObjectWriter(raw_pwrite_stream &OS,
423 bool Is64Bit,
Ulrich Weigandcae3a172014-03-24 18:16:09 +0000[diff] [blame]424 bool IsLittleEndian,
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]425 uint8_t OSABI) {
426 MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
Ulrich Weigandcae3a172014-03-24 18:16:09 +0000[diff] [blame]427 return createELFObjectWriter(MOTW, OS, IsLittleEndian);
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]428}