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gerrit-public.fairphone.software / toolchain / llvm-project / 5560a4cfbd6c4c8632f9b7662aa9fe477bbc7374 / . / llvm / lib / Target / PowerPC / MCTargetDesc / PPCELFObjectWriter.cpp
blob: 3e3489fc46aaa7c246af9c2d06609bf428d0c7e5 [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"
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]14#include "llvm/MC/MCELF.h"
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]15#include "llvm/MC/MCELFObjectWriter.h"
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]16#include "llvm/MC/MCExpr.h"
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
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]31 bool needsRelocateWithSymbol(const MCSymbolData &SD,
32 unsigned Type) const override;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]33 };
34}
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;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]116 case FK_Data_4:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]117 case FK_PCRel_4:
118 Type = ELF::R_PPC_REL32;
119 break;
Adhemerval Zanella9b0b7812013-01-04 19:08:13 +0000[diff] [blame]120 case FK_Data_8:
121 case FK_PCRel_8:
122 Type = ELF::R_PPC64_REL64;
123 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]124 }
125 } else {
126 switch ((unsigned)Fixup.getKind()) {
127 default: llvm_unreachable("invalid fixup kind!");
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]128 case PPC::fixup_ppc_br24abs:
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]129 Type = ELF::R_PPC_ADDR24;
130 break;
Ulrich Weigandb6a30d12013-06-24 11:03:33 +0000[diff] [blame]131 case PPC::fixup_ppc_brcond14abs:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]132 Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]133 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]134 case PPC::fixup_ppc_half16:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]135 switch (Modifier) {
136 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]137 case MCSymbolRefExpr::VK_None:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]138 Type = ELF::R_PPC_ADDR16;
139 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]140 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]141 Type = ELF::R_PPC_ADDR16_LO;
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]142 break;
Ulrich Weigande67c5652013-06-21 14:42:49 +0000[diff] [blame]143 case MCSymbolRefExpr::VK_PPC_HI:
144 Type = ELF::R_PPC_ADDR16_HI;
145 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]146 case MCSymbolRefExpr::VK_PPC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]147 Type = ELF::R_PPC_ADDR16_HA;
148 break;
Ulrich Weigande9126f52013-06-21 14:43:42 +0000[diff] [blame]149 case MCSymbolRefExpr::VK_PPC_HIGHER:
150 Type = ELF::R_PPC64_ADDR16_HIGHER;
151 break;
152 case MCSymbolRefExpr::VK_PPC_HIGHERA:
153 Type = ELF::R_PPC64_ADDR16_HIGHERA;
154 break;
155 case MCSymbolRefExpr::VK_PPC_HIGHEST:
156 Type = ELF::R_PPC64_ADDR16_HIGHEST;
157 break;
158 case MCSymbolRefExpr::VK_PPC_HIGHESTA:
159 Type = ELF::R_PPC64_ADDR16_HIGHESTA;
160 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]161 case MCSymbolRefExpr::VK_GOT:
162 Type = ELF::R_PPC_GOT16;
163 break;
164 case MCSymbolRefExpr::VK_PPC_GOT_LO:
165 Type = ELF::R_PPC_GOT16_LO;
166 break;
167 case MCSymbolRefExpr::VK_PPC_GOT_HI:
168 Type = ELF::R_PPC_GOT16_HI;
169 break;
170 case MCSymbolRefExpr::VK_PPC_GOT_HA:
171 Type = ELF::R_PPC_GOT16_HA;
172 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]173 case MCSymbolRefExpr::VK_PPC_TOC:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]174 Type = ELF::R_PPC64_TOC16;
175 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]176 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]177 Type = ELF::R_PPC64_TOC16_LO;
178 break;
Ulrich Weigand72ddbd62013-06-21 14:43:10 +0000[diff] [blame]179 case MCSymbolRefExpr::VK_PPC_TOC_HI:
180 Type = ELF::R_PPC64_TOC16_HI;
181 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]182 case MCSymbolRefExpr::VK_PPC_TOC_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]183 Type = ELF::R_PPC64_TOC16_HA;
184 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]185 case MCSymbolRefExpr::VK_PPC_TPREL:
186 Type = ELF::R_PPC_TPREL16;
187 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]188 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]189 Type = ELF::R_PPC_TPREL16_LO;
190 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]191 case MCSymbolRefExpr::VK_PPC_TPREL_HI:
192 Type = ELF::R_PPC_TPREL16_HI;
193 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]194 case MCSymbolRefExpr::VK_PPC_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]195 Type = ELF::R_PPC_TPREL16_HA;
196 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]197 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHER:
198 Type = ELF::R_PPC64_TPREL16_HIGHER;
199 break;
200 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHERA:
201 Type = ELF::R_PPC64_TPREL16_HIGHERA;
202 break;
203 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHEST:
204 Type = ELF::R_PPC64_TPREL16_HIGHEST;
205 break;
206 case MCSymbolRefExpr::VK_PPC_TPREL_HIGHESTA:
207 Type = ELF::R_PPC64_TPREL16_HIGHESTA;
208 break;
209 case MCSymbolRefExpr::VK_PPC_DTPREL:
210 Type = ELF::R_PPC64_DTPREL16;
211 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]212 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]213 Type = ELF::R_PPC64_DTPREL16_LO;
214 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]215 case MCSymbolRefExpr::VK_PPC_DTPREL_HI:
216 Type = ELF::R_PPC64_DTPREL16_HI;
217 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]218 case MCSymbolRefExpr::VK_PPC_DTPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]219 Type = ELF::R_PPC64_DTPREL16_HA;
220 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]221 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHER:
222 Type = ELF::R_PPC64_DTPREL16_HIGHER;
223 break;
224 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHERA:
225 Type = ELF::R_PPC64_DTPREL16_HIGHERA;
226 break;
227 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHEST:
228 Type = ELF::R_PPC64_DTPREL16_HIGHEST;
229 break;
230 case MCSymbolRefExpr::VK_PPC_DTPREL_HIGHESTA:
231 Type = ELF::R_PPC64_DTPREL16_HIGHESTA;
232 break;
233 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]234 if (is64Bit())
235 Type = ELF::R_PPC64_GOT_TLSGD16;
236 else
237 Type = ELF::R_PPC_GOT_TLSGD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]238 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]239 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO:
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]240 Type = ELF::R_PPC64_GOT_TLSGD16_LO;
241 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]242 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HI:
243 Type = ELF::R_PPC64_GOT_TLSGD16_HI;
244 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]245 case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]246 Type = ELF::R_PPC64_GOT_TLSGD16_HA;
247 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]248 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]249 if (is64Bit())
250 Type = ELF::R_PPC64_GOT_TLSLD16;
251 else
252 Type = ELF::R_PPC_GOT_TLSLD16;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]253 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]254 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO:
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]255 Type = ELF::R_PPC64_GOT_TLSLD16_LO;
256 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]257 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HI:
258 Type = ELF::R_PPC64_GOT_TLSLD16_HI;
259 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]260 case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]261 Type = ELF::R_PPC64_GOT_TLSLD16_HA;
262 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]263 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
264 /* We don't have R_PPC64_GOT_TPREL16, but since GOT offsets
265 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_DS. */
266 Type = ELF::R_PPC64_GOT_TPREL16_DS;
267 break;
268 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
269 /* We don't have R_PPC64_GOT_TPREL16_LO, but since GOT offsets
270 are always 4-aligned, we can use R_PPC64_GOT_TPREL16_LO_DS. */
271 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
272 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]273 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HI:
274 Type = ELF::R_PPC64_GOT_TPREL16_HI;
275 break;
Ulrich Weigandb2044312013-07-05 13:49:46 +0000[diff] [blame]276 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
277 /* We don't have R_PPC64_GOT_DTPREL16, but since GOT offsets
278 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_DS. */
279 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
280 break;
281 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
282 /* We don't have R_PPC64_GOT_DTPREL16_LO, but since GOT offsets
283 are always 4-aligned, we can use R_PPC64_GOT_DTPREL16_LO_DS. */
284 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
285 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]286 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA:
Ulrich Weigand9e90b3c2013-06-20 22:04:40 +0000[diff] [blame]287 Type = ELF::R_PPC64_GOT_TPREL16_HA;
288 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]289 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HI:
290 Type = ELF::R_PPC64_GOT_DTPREL16_HI;
291 break;
292 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_HA:
293 Type = ELF::R_PPC64_GOT_DTPREL16_HA;
294 break;
Ulrich Weigand85578502012-11-13 19:24:36 +0000[diff] [blame]295 }
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]296 break;
Ulrich Weigand6e23ac62013-05-17 12:37:21 +0000[diff] [blame]297 case PPC::fixup_ppc_half16ds:
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]298 switch (Modifier) {
299 default: llvm_unreachable("Unsupported Modifier");
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]300 case MCSymbolRefExpr::VK_None:
Ulrich Weigand3e186012013-03-26 10:56:47 +0000[diff] [blame]301 Type = ELF::R_PPC64_ADDR16_DS;
Bill Schmidt3822ef22013-02-21 00:05:29 +0000[diff] [blame]302 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]303 case MCSymbolRefExpr::VK_PPC_LO:
Ulrich Weigande4620532013-05-08 17:50:07 +0000[diff] [blame]304 Type = ELF::R_PPC64_ADDR16_LO_DS;
305 break;
Ulrich Weigand93372b42013-06-25 16:49:50 +0000[diff] [blame]306 case MCSymbolRefExpr::VK_GOT:
307 Type = ELF::R_PPC64_GOT16_DS;
308 break;
309 case MCSymbolRefExpr::VK_PPC_GOT_LO:
310 Type = ELF::R_PPC64_GOT16_LO_DS;
311 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]312 case MCSymbolRefExpr::VK_PPC_TOC:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]313 Type = ELF::R_PPC64_TOC16_DS;
314 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]315 case MCSymbolRefExpr::VK_PPC_TOC_LO:
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]316 Type = ELF::R_PPC64_TOC16_LO_DS;
317 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]318 case MCSymbolRefExpr::VK_PPC_TPREL:
319 Type = ELF::R_PPC64_TPREL16_DS;
320 break;
321 case MCSymbolRefExpr::VK_PPC_TPREL_LO:
322 Type = ELF::R_PPC64_TPREL16_LO_DS;
323 break;
324 case MCSymbolRefExpr::VK_PPC_DTPREL:
325 Type = ELF::R_PPC64_DTPREL16_DS;
326 break;
327 case MCSymbolRefExpr::VK_PPC_DTPREL_LO:
328 Type = ELF::R_PPC64_DTPREL16_LO_DS;
329 break;
330 case MCSymbolRefExpr::VK_PPC_GOT_TPREL:
331 Type = ELF::R_PPC64_GOT_TPREL16_DS;
332 break;
Ulrich Weigandd51c09f2013-06-21 14:42:20 +0000[diff] [blame]333 case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO:
Bill Schmidt9f0b4ec2012-12-14 17:02:38 +0000[diff] [blame]334 Type = ELF::R_PPC64_GOT_TPREL16_LO_DS;
Bill Schmidtca4a0c92012-12-04 16:18:08 +0000[diff] [blame]335 break;
Ulrich Weigand876a0d02013-06-21 14:44:15 +0000[diff] [blame]336 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL:
337 Type = ELF::R_PPC64_GOT_DTPREL16_DS;
338 break;
339 case MCSymbolRefExpr::VK_PPC_GOT_DTPREL_LO:
340 Type = ELF::R_PPC64_GOT_DTPREL16_LO_DS;
341 break;
Bill Schmidt34627e32012-11-27 17:35:46 +0000[diff] [blame]342 }
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]343 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]344 case PPC::fixup_ppc_nofixup:
345 switch (Modifier) {
346 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]347 case MCSymbolRefExpr::VK_PPC_TLSGD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]348 if (is64Bit())
349 Type = ELF::R_PPC64_TLSGD;
350 else
351 Type = ELF::R_PPC_TLSGD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]352 break;
Ulrich Weigand52cf8e42013-07-09 16:41:09 +0000[diff] [blame]353 case MCSymbolRefExpr::VK_PPC_TLSLD:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]354 if (is64Bit())
355 Type = ELF::R_PPC64_TLSLD;
356 else
357 Type = ELF::R_PPC_TLSLD;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]358 break;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]359 case MCSymbolRefExpr::VK_PPC_TLS:
Hal Finkel7c8ae532014-07-25 17:47:22 +0000[diff] [blame]360 if (is64Bit())
361 Type = ELF::R_PPC64_TLS;
362 else
363 Type = ELF::R_PPC_TLS;
Ulrich Weigand5b427592013-07-05 12:22:36 +0000[diff] [blame]364 break;
Bill Schmidt24b8dd62012-12-12 19:29:35 +0000[diff] [blame]365 }
Bill Schmidtc56f1d32012-12-11 20:30:11 +0000[diff] [blame]366 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]367 case FK_Data_8:
368 switch (Modifier) {
369 default: llvm_unreachable("Unsupported Modifier");
Ulrich Weigand68e2e1b2013-06-20 22:39:42 +0000[diff] [blame]370 case MCSymbolRefExpr::VK_PPC_TOCBASE:
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]371 Type = ELF::R_PPC64_TOC;
372 break;
373 case MCSymbolRefExpr::VK_None:
374 Type = ELF::R_PPC64_ADDR64;
375 break;
Ulrich Weigandf11efe72013-07-01 23:33:29 +0000[diff] [blame]376 case MCSymbolRefExpr::VK_PPC_DTPMOD:
377 Type = ELF::R_PPC64_DTPMOD64;
378 break;
379 case MCSymbolRefExpr::VK_PPC_TPREL:
380 Type = ELF::R_PPC64_TPREL64;
381 break;
382 case MCSymbolRefExpr::VK_PPC_DTPREL:
383 Type = ELF::R_PPC64_DTPREL64;
384 break;
Adhemerval Zanellaf2aceda2012-10-25 12:27:42 +0000[diff] [blame]385 }
386 break;
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]387 case FK_Data_4:
388 Type = ELF::R_PPC_ADDR32;
389 break;
390 case FK_Data_2:
391 Type = ELF::R_PPC_ADDR16;
392 break;
393 }
394 }
395 return Type;
396}
397
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]398bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbolData &SD,
399 unsigned Type) const {
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]400 switch (Type) {
401 default:
402 return false;
403
404 case ELF::R_PPC_REL24:
Ulrich Weigand46797c62014-07-20 23:15:06 +0000[diff] [blame]405 // If the target symbol has a local entry point, we must keep the
406 // target symbol to preserve that information for the linker.
407 // The "other" values are stored in the last 6 bits of the second byte.
408 // The traditional defines for STO values assume the full byte and thus
409 // the shift to pack it.
410 unsigned Other = MCELF::getOther(SD) << 2;
411 return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0;
Ulrich Weigandbb686102014-07-20 23:06:03 +0000[diff] [blame]412 }
413}
414
Rafael Espindola5560a4c2015-04-14 22:14:34 +0000[diff] [blame^]415MCObjectWriter *llvm::createPPCELFObjectWriter(raw_pwrite_stream &OS,
416 bool Is64Bit,
Ulrich Weigandcae3a172014-03-24 18:16:09 +0000[diff] [blame]417 bool IsLittleEndian,
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]418 uint8_t OSABI) {
419 MCELFObjectTargetWriter *MOTW = new PPCELFObjectWriter(Is64Bit, OSABI);
Ulrich Weigandcae3a172014-03-24 18:16:09 +0000[diff] [blame]420 return createELFObjectWriter(MOTW, OS, IsLittleEndian);
Rafael Espindola38a400d2011-12-22 01:57:09 +0000[diff] [blame]421}