Rafael Espindola | 38a400d | 2011-12-22 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 Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 10 | #include "MCTargetDesc/PPCFixupKinds.h" |
Rafael Espindola | 7fadc0e | 2014-03-20 02:12:01 +0000 | [diff] [blame] | 11 | #include "MCTargetDesc/PPCMCExpr.h" |
Chandler Carruth | 6bda14b | 2017-06-06 11:49:48 +0000 | [diff] [blame] | 12 | #include "MCTargetDesc/PPCMCTargetDesc.h" |
Bill Schmidt | a4f8984 | 2012-12-14 20:28:38 +0000 | [diff] [blame] | 13 | #include "llvm/ADT/STLExtras.h" |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 14 | #include "llvm/MC/MCELFObjectWriter.h" |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 15 | #include "llvm/MC/MCExpr.h" |
Lang Hames | 60fbc7c | 2017-10-10 16:28:07 +0000 | [diff] [blame] | 16 | #include "llvm/MC/MCObjectWriter.h" |
Rafael Espindola | 95fb9b9 | 2015-06-02 20:38:46 +0000 | [diff] [blame] | 17 | #include "llvm/MC/MCSymbolELF.h" |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 18 | #include "llvm/MC/MCValue.h" |
Chandler Carruth | ed0881b | 2012-12-03 16:50:05 +0000 | [diff] [blame] | 19 | #include "llvm/Support/ErrorHandling.h" |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 20 | |
| 21 | using namespace llvm; |
| 22 | |
| 23 | namespace { |
| 24 | class PPCELFObjectWriter : public MCELFObjectTargetWriter { |
| 25 | public: |
| 26 | PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI); |
| 27 | |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 28 | protected: |
Rafael Espindola | 8340f94 | 2016-01-13 22:56:57 +0000 | [diff] [blame] | 29 | unsigned getRelocType(MCContext &Ctx, const MCValue &Target, |
| 30 | const MCFixup &Fixup, bool IsPCRel) const override; |
Ulrich Weigand | bb68610 | 2014-07-20 23:06:03 +0000 | [diff] [blame] | 31 | |
Rafael Espindola | ece40ca | 2015-05-29 18:26:09 +0000 | [diff] [blame] | 32 | bool needsRelocateWithSymbol(const MCSymbol &Sym, |
Ulrich Weigand | 46797c6 | 2014-07-20 23:15:06 +0000 | [diff] [blame] | 33 | unsigned Type) const override; |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 34 | }; |
Alexander Kornienko | f00654e | 2015-06-23 09:49:53 +0000 | [diff] [blame] | 35 | } |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 36 | |
| 37 | PPCELFObjectWriter::PPCELFObjectWriter(bool Is64Bit, uint8_t OSABI) |
| 38 | : MCELFObjectTargetWriter(Is64Bit, OSABI, |
| 39 | Is64Bit ? ELF::EM_PPC64 : ELF::EM_PPC, |
Rafael Espindola | 2500962 | 2011-12-22 18:38:06 +0000 | [diff] [blame] | 40 | /*HasRelocationAddend*/ true) {} |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 41 | |
Rafael Espindola | 3d082fa | 2014-05-03 19:57:04 +0000 | [diff] [blame] | 42 | static MCSymbolRefExpr::VariantKind getAccessVariant(const MCValue &Target, |
| 43 | const MCFixup &Fixup) { |
Rafael Espindola | 7fadc0e | 2014-03-20 02:12:01 +0000 | [diff] [blame] | 44 | const MCExpr *Expr = Fixup.getValue(); |
| 45 | |
| 46 | if (Expr->getKind() != MCExpr::Target) |
Rafael Espindola | 3d082fa | 2014-05-03 19:57:04 +0000 | [diff] [blame] | 47 | return Target.getAccessVariant(); |
Rafael Espindola | 7fadc0e | 2014-03-20 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 Samsonov | 94bc422 | 2014-03-20 07:30:40 +0000 | [diff] [blame] | 67 | llvm_unreachable("unknown PPCMCExpr kind"); |
Rafael Espindola | 7fadc0e | 2014-03-20 02:12:01 +0000 | [diff] [blame] | 68 | } |
| 69 | |
Rafael Espindola | 8340f94 | 2016-01-13 22:56:57 +0000 | [diff] [blame] | 70 | unsigned PPCELFObjectWriter::getRelocType(MCContext &Ctx, const MCValue &Target, |
Benjamin Kramer | 8c90fd7 | 2014-09-03 11:41:21 +0000 | [diff] [blame] | 71 | const MCFixup &Fixup, |
| 72 | bool IsPCRel) const { |
Rafael Espindola | 3d082fa | 2014-05-03 19:57:04 +0000 | [diff] [blame] | 73 | MCSymbolRefExpr::VariantKind Modifier = getAccessVariant(Target, Fixup); |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 74 | |
Rafael Espindola | 38a400d | 2011-12-22 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 Weigand | b6a30d1 | 2013-06-24 11:03:33 +0000 | [diff] [blame] | 82 | case PPC::fixup_ppc_br24abs: |
Hal Finkel | 3ee2af7 | 2014-07-18 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 Hibbits | a88b605 | 2014-11-12 15:16:30 +0000 | [diff] [blame] | 91 | case MCSymbolRefExpr::VK_PPC_LOCAL: |
| 92 | Type = ELF::R_PPC_LOCAL24PC; |
| 93 | break; |
Hal Finkel | 3ee2af7 | 2014-07-18 23:29:49 +0000 | [diff] [blame] | 94 | } |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 95 | break; |
Ulrich Weigand | 72a7dc0 | 2013-04-26 15:38:30 +0000 | [diff] [blame] | 96 | case PPC::fixup_ppc_brcond14: |
Ulrich Weigand | b6a30d1 | 2013-06-24 11:03:33 +0000 | [diff] [blame] | 97 | case PPC::fixup_ppc_brcond14abs: |
Ulrich Weigand | 72a7dc0 | 2013-04-26 15:38:30 +0000 | [diff] [blame] | 98 | Type = ELF::R_PPC_REL14; |
| 99 | break; |
Ulrich Weigand | 91add7d | 2013-06-21 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 Espindola | 850ba46 | 2015-12-17 14:19:52 +0000 | [diff] [blame] | 117 | case PPC::fixup_ppc_half16ds: |
| 118 | Target.print(errs()); |
| 119 | errs() << '\n'; |
Bill Schmidt | de1dc9c | 2015-10-22 15:53:44 +0000 | [diff] [blame] | 120 | report_fatal_error("Invalid PC-relative half16ds relocation"); |
Adhemerval Zanella | 9b0b781 | 2013-01-04 19:08:13 +0000 | [diff] [blame] | 121 | case FK_Data_4: |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 122 | case FK_PCRel_4: |
| 123 | Type = ELF::R_PPC_REL32; |
| 124 | break; |
Adhemerval Zanella | 9b0b781 | 2013-01-04 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 Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 129 | } |
| 130 | } else { |
| 131 | switch ((unsigned)Fixup.getKind()) { |
| 132 | default: llvm_unreachable("invalid fixup kind!"); |
Ulrich Weigand | b6a30d1 | 2013-06-24 11:03:33 +0000 | [diff] [blame] | 133 | case PPC::fixup_ppc_br24abs: |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 134 | Type = ELF::R_PPC_ADDR24; |
| 135 | break; |
Ulrich Weigand | b6a30d1 | 2013-06-24 11:03:33 +0000 | [diff] [blame] | 136 | case PPC::fixup_ppc_brcond14abs: |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 137 | Type = ELF::R_PPC_ADDR14; // XXX: or BRNTAKEN?_ |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 138 | break; |
Ulrich Weigand | 6e23ac6 | 2013-05-17 12:37:21 +0000 | [diff] [blame] | 139 | case PPC::fixup_ppc_half16: |
Ulrich Weigand | 8557850 | 2012-11-13 19:24:36 +0000 | [diff] [blame] | 140 | switch (Modifier) { |
| 141 | default: llvm_unreachable("Unsupported Modifier"); |
Ulrich Weigand | 8557850 | 2012-11-13 19:24:36 +0000 | [diff] [blame] | 142 | case MCSymbolRefExpr::VK_None: |
Ulrich Weigand | e462053 | 2013-05-08 17:50:07 +0000 | [diff] [blame] | 143 | Type = ELF::R_PPC_ADDR16; |
| 144 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 145 | case MCSymbolRefExpr::VK_PPC_LO: |
Ulrich Weigand | 8557850 | 2012-11-13 19:24:36 +0000 | [diff] [blame] | 146 | Type = ELF::R_PPC_ADDR16_LO; |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 147 | break; |
Ulrich Weigand | e67c565 | 2013-06-21 14:42:49 +0000 | [diff] [blame] | 148 | case MCSymbolRefExpr::VK_PPC_HI: |
| 149 | Type = ELF::R_PPC_ADDR16_HI; |
| 150 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 151 | case MCSymbolRefExpr::VK_PPC_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 152 | Type = ELF::R_PPC_ADDR16_HA; |
| 153 | break; |
Ulrich Weigand | e9126f5 | 2013-06-21 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 Weigand | 93372b4 | 2013-06-25 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 Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 178 | case MCSymbolRefExpr::VK_PPC_TOC: |
Ulrich Weigand | 3e18601 | 2013-03-26 10:56:47 +0000 | [diff] [blame] | 179 | Type = ELF::R_PPC64_TOC16; |
| 180 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 181 | case MCSymbolRefExpr::VK_PPC_TOC_LO: |
Bill Schmidt | 34627e3 | 2012-11-27 17:35:46 +0000 | [diff] [blame] | 182 | Type = ELF::R_PPC64_TOC16_LO; |
| 183 | break; |
Ulrich Weigand | 72ddbd6 | 2013-06-21 14:43:10 +0000 | [diff] [blame] | 184 | case MCSymbolRefExpr::VK_PPC_TOC_HI: |
| 185 | Type = ELF::R_PPC64_TOC16_HI; |
| 186 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 187 | case MCSymbolRefExpr::VK_PPC_TOC_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 188 | Type = ELF::R_PPC64_TOC16_HA; |
| 189 | break; |
Colin LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 190 | case MCSymbolRefExpr::VK_TPREL: |
Ulrich Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 191 | Type = ELF::R_PPC_TPREL16; |
| 192 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 193 | case MCSymbolRefExpr::VK_PPC_TPREL_LO: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 194 | Type = ELF::R_PPC_TPREL16_LO; |
| 195 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 196 | case MCSymbolRefExpr::VK_PPC_TPREL_HI: |
| 197 | Type = ELF::R_PPC_TPREL16_HI; |
| 198 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 199 | case MCSymbolRefExpr::VK_PPC_TPREL_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 200 | Type = ELF::R_PPC_TPREL16_HA; |
| 201 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 214 | case MCSymbolRefExpr::VK_DTPREL: |
Ulrich Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 215 | Type = ELF::R_PPC64_DTPREL16; |
| 216 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 217 | case MCSymbolRefExpr::VK_PPC_DTPREL_LO: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 218 | Type = ELF::R_PPC64_DTPREL16_LO; |
| 219 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 220 | case MCSymbolRefExpr::VK_PPC_DTPREL_HI: |
| 221 | Type = ELF::R_PPC64_DTPREL16_HI; |
| 222 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 223 | case MCSymbolRefExpr::VK_PPC_DTPREL_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 224 | Type = ELF::R_PPC64_DTPREL16_HA; |
| 225 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Finkel | 7c8ae53 | 2014-07-25 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 Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 243 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 244 | case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO: |
Bill Schmidt | c56f1d3 | 2012-12-11 20:30:11 +0000 | [diff] [blame] | 245 | Type = ELF::R_PPC64_GOT_TLSGD16_LO; |
| 246 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 250 | case MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 251 | Type = ELF::R_PPC64_GOT_TLSGD16_HA; |
| 252 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 253 | case MCSymbolRefExpr::VK_PPC_GOT_TLSLD: |
Hal Finkel | 7c8ae53 | 2014-07-25 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 Weigand | 876a0d0 | 2013-06-21 14:44:15 +0000 | [diff] [blame] | 258 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 259 | case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO: |
Bill Schmidt | 24b8dd6 | 2012-12-12 19:29:35 +0000 | [diff] [blame] | 260 | Type = ELF::R_PPC64_GOT_TLSLD16_LO; |
| 261 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 265 | case MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 266 | Type = ELF::R_PPC64_GOT_TLSLD16_HA; |
| 267 | break; |
Ulrich Weigand | b204431 | 2013-07-05 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 Weigand | 876a0d0 | 2013-06-21 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 Weigand | b204431 | 2013-07-05 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 Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 291 | case MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA: |
Ulrich Weigand | 9e90b3c | 2013-06-20 22:04:40 +0000 | [diff] [blame] | 292 | Type = ELF::R_PPC64_GOT_TPREL16_HA; |
| 293 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Weigand | 8557850 | 2012-11-13 19:24:36 +0000 | [diff] [blame] | 300 | } |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 301 | break; |
Ulrich Weigand | 6e23ac6 | 2013-05-17 12:37:21 +0000 | [diff] [blame] | 302 | case PPC::fixup_ppc_half16ds: |
Bill Schmidt | 3822ef2 | 2013-02-21 00:05:29 +0000 | [diff] [blame] | 303 | switch (Modifier) { |
| 304 | default: llvm_unreachable("Unsupported Modifier"); |
Bill Schmidt | 3822ef2 | 2013-02-21 00:05:29 +0000 | [diff] [blame] | 305 | case MCSymbolRefExpr::VK_None: |
Ulrich Weigand | 3e18601 | 2013-03-26 10:56:47 +0000 | [diff] [blame] | 306 | Type = ELF::R_PPC64_ADDR16_DS; |
Bill Schmidt | 3822ef2 | 2013-02-21 00:05:29 +0000 | [diff] [blame] | 307 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 308 | case MCSymbolRefExpr::VK_PPC_LO: |
Ulrich Weigand | e462053 | 2013-05-08 17:50:07 +0000 | [diff] [blame] | 309 | Type = ELF::R_PPC64_ADDR16_LO_DS; |
| 310 | break; |
Ulrich Weigand | 93372b4 | 2013-06-25 16:49:50 +0000 | [diff] [blame] | 311 | case MCSymbolRefExpr::VK_GOT: |
| 312 | Type = ELF::R_PPC64_GOT16_DS; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 313 | break; |
Ulrich Weigand | 93372b4 | 2013-06-25 16:49:50 +0000 | [diff] [blame] | 314 | case MCSymbolRefExpr::VK_PPC_GOT_LO: |
| 315 | Type = ELF::R_PPC64_GOT16_LO_DS; |
| 316 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 317 | case MCSymbolRefExpr::VK_PPC_TOC: |
Bill Schmidt | 34627e3 | 2012-11-27 17:35:46 +0000 | [diff] [blame] | 318 | Type = ELF::R_PPC64_TOC16_DS; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 319 | break; |
Ulrich Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 320 | case MCSymbolRefExpr::VK_PPC_TOC_LO: |
Bill Schmidt | 34627e3 | 2012-11-27 17:35:46 +0000 | [diff] [blame] | 321 | Type = ELF::R_PPC64_TOC16_LO_DS; |
| 322 | break; |
Colin LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 323 | case MCSymbolRefExpr::VK_TPREL: |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 329 | case MCSymbolRefExpr::VK_DTPREL: |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Weigand | d51c09f | 2013-06-21 14:42:20 +0000 | [diff] [blame] | 338 | case MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO: |
Bill Schmidt | 9f0b4ec | 2012-12-14 17:02:38 +0000 | [diff] [blame] | 339 | Type = ELF::R_PPC64_GOT_TPREL16_LO_DS; |
Bill Schmidt | ca4a0c9 | 2012-12-04 16:18:08 +0000 | [diff] [blame] | 340 | break; |
Ulrich Weigand | 876a0d0 | 2013-06-21 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 Schmidt | 34627e3 | 2012-11-27 17:35:46 +0000 | [diff] [blame] | 347 | } |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 348 | break; |
Bill Schmidt | 24b8dd6 | 2012-12-12 19:29:35 +0000 | [diff] [blame] | 349 | case PPC::fixup_ppc_nofixup: |
| 350 | switch (Modifier) { |
| 351 | default: llvm_unreachable("Unsupported Modifier"); |
Ulrich Weigand | 52cf8e4 | 2013-07-09 16:41:09 +0000 | [diff] [blame] | 352 | case MCSymbolRefExpr::VK_PPC_TLSGD: |
Hal Finkel | 7c8ae53 | 2014-07-25 17:47:22 +0000 | [diff] [blame] | 353 | if (is64Bit()) |
| 354 | Type = ELF::R_PPC64_TLSGD; |
| 355 | else |
| 356 | Type = ELF::R_PPC_TLSGD; |
Bill Schmidt | 24b8dd6 | 2012-12-12 19:29:35 +0000 | [diff] [blame] | 357 | break; |
Ulrich Weigand | 52cf8e4 | 2013-07-09 16:41:09 +0000 | [diff] [blame] | 358 | case MCSymbolRefExpr::VK_PPC_TLSLD: |
Hal Finkel | 7c8ae53 | 2014-07-25 17:47:22 +0000 | [diff] [blame] | 359 | if (is64Bit()) |
| 360 | Type = ELF::R_PPC64_TLSLD; |
| 361 | else |
| 362 | Type = ELF::R_PPC_TLSLD; |
Bill Schmidt | 24b8dd6 | 2012-12-12 19:29:35 +0000 | [diff] [blame] | 363 | break; |
Ulrich Weigand | 5b42759 | 2013-07-05 12:22:36 +0000 | [diff] [blame] | 364 | case MCSymbolRefExpr::VK_PPC_TLS: |
Hal Finkel | 7c8ae53 | 2014-07-25 17:47:22 +0000 | [diff] [blame] | 365 | if (is64Bit()) |
| 366 | Type = ELF::R_PPC64_TLS; |
| 367 | else |
| 368 | Type = ELF::R_PPC_TLS; |
Ulrich Weigand | 5b42759 | 2013-07-05 12:22:36 +0000 | [diff] [blame] | 369 | break; |
Bill Schmidt | 24b8dd6 | 2012-12-12 19:29:35 +0000 | [diff] [blame] | 370 | } |
Bill Schmidt | c56f1d3 | 2012-12-11 20:30:11 +0000 | [diff] [blame] | 371 | break; |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 372 | case FK_Data_8: |
| 373 | switch (Modifier) { |
| 374 | default: llvm_unreachable("Unsupported Modifier"); |
Ulrich Weigand | 68e2e1b | 2013-06-20 22:39:42 +0000 | [diff] [blame] | 375 | case MCSymbolRefExpr::VK_PPC_TOCBASE: |
Adhemerval Zanella | f2aceda | 2012-10-25 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 Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 380 | break; |
Ulrich Weigand | f11efe7 | 2013-07-01 23:33:29 +0000 | [diff] [blame] | 381 | case MCSymbolRefExpr::VK_PPC_DTPMOD: |
| 382 | Type = ELF::R_PPC64_DTPMOD64; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 383 | break; |
Colin LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 384 | case MCSymbolRefExpr::VK_TPREL: |
Ulrich Weigand | f11efe7 | 2013-07-01 23:33:29 +0000 | [diff] [blame] | 385 | Type = ELF::R_PPC64_TPREL64; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 386 | break; |
Colin LeMahieu | 0e05192 | 2016-02-10 18:32:01 +0000 | [diff] [blame] | 387 | case MCSymbolRefExpr::VK_DTPREL: |
Ulrich Weigand | f11efe7 | 2013-07-01 23:33:29 +0000 | [diff] [blame] | 388 | Type = ELF::R_PPC64_DTPREL64; |
NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 389 | break; |
Adhemerval Zanella | f2aceda | 2012-10-25 12:27:42 +0000 | [diff] [blame] | 390 | } |
| 391 | break; |
Rafael Espindola | 38a400d | 2011-12-22 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 Espindola | ece40ca | 2015-05-29 18:26:09 +0000 | [diff] [blame] | 403 | bool PPCELFObjectWriter::needsRelocateWithSymbol(const MCSymbol &Sym, |
Ulrich Weigand | 46797c6 | 2014-07-20 23:15:06 +0000 | [diff] [blame] | 404 | unsigned Type) const { |
Ulrich Weigand | bb68610 | 2014-07-20 23:06:03 +0000 | [diff] [blame] | 405 | switch (Type) { |
| 406 | default: |
| 407 | return false; |
| 408 | |
| 409 | case ELF::R_PPC_REL24: |
Ulrich Weigand | 46797c6 | 2014-07-20 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 Espindola | 95fb9b9 | 2015-06-02 20:38:46 +0000 | [diff] [blame] | 415 | unsigned Other = cast<MCSymbolELF>(Sym).getOther() << 2; |
Ulrich Weigand | 46797c6 | 2014-07-20 23:15:06 +0000 | [diff] [blame] | 416 | return (Other & ELF::STO_PPC64_LOCAL_MASK) != 0; |
Ulrich Weigand | bb68610 | 2014-07-20 23:06:03 +0000 | [diff] [blame] | 417 | } |
| 418 | } |
| 419 | |
Lang Hames | 60fbc7c | 2017-10-10 16:28:07 +0000 | [diff] [blame] | 420 | std::unique_ptr<MCObjectWriter> |
| 421 | llvm::createPPCELFObjectWriter(raw_pwrite_stream &OS, bool Is64Bit, |
| 422 | bool IsLittleEndian, uint8_t OSABI) { |
Lang Hames | dcb312b | 2017-10-09 23:53:15 +0000 | [diff] [blame] | 423 | auto MOTW = llvm::make_unique<PPCELFObjectWriter>(Is64Bit, OSABI); |
| 424 | return createELFObjectWriter(std::move(MOTW), OS, IsLittleEndian); |
Rafael Espindola | 38a400d | 2011-12-22 01:57:09 +0000 | [diff] [blame] | 425 | } |