| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 1 | //===-- MObjectFileInfo.cpp - Object File Information ---------------------===// |
| 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 | |
| 10 | #include "llvm/MC/MCObjectFileInfo.h" |
| David Blaikie | bc56327 | 2013-12-13 21:33:40 +0000 | [diff] [blame] | 11 | #include "llvm/ADT/StringExtras.h" |
| Chandler Carruth | 8a8cd2b | 2014-01-07 11:48:04 +0000 | [diff] [blame] | 12 | #include "llvm/ADT/Triple.h" |
| Joerg Sonnenberger | 94cbb66 | 2014-05-13 17:58:13 +0000 | [diff] [blame] | 13 | #include "llvm/MC/MCAsmInfo.h" |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 14 | #include "llvm/MC/MCContext.h" |
| 15 | #include "llvm/MC/MCSection.h" |
| 16 | #include "llvm/MC/MCSectionCOFF.h" |
| 17 | #include "llvm/MC/MCSectionELF.h" |
| 18 | #include "llvm/MC/MCSectionMachO.h" |
| Reid Kleckner | 1f13d47 | 2015-09-03 16:41:50 +0000 | [diff] [blame] | 19 | #include "llvm/Support/COFF.h" |
| Hans Wennborg | 083ca9b | 2015-10-06 23:24:35 +0000 | [diff] [blame] | 20 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 21 | using namespace llvm; |
| 22 | |
| Rafael Espindola | becdf63 | 2014-06-20 22:37:01 +0000 | [diff] [blame] | 23 | static bool useCompactUnwind(const Triple &T) { |
| 24 | // Only on darwin. |
| 25 | if (!T.isOSDarwin()) |
| 26 | return false; |
| 27 | |
| 28 | // aarch64 always has it. |
| Tim Northover | e19bed7 | 2014-07-23 12:32:47 +0000 | [diff] [blame] | 29 | if (T.getArch() == Triple::aarch64) |
| Rafael Espindola | becdf63 | 2014-06-20 22:37:01 +0000 | [diff] [blame] | 30 | return true; |
| 31 | |
| 32 | // Use it on newer version of OS X. |
| 33 | if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6)) |
| 34 | return true; |
| 35 | |
| Rafael Espindola | c3510c7 | 2014-06-20 22:40:55 +0000 | [diff] [blame] | 36 | // And the iOS simulator. |
| 37 | if (T.isiOS() && |
| 38 | (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86)) |
| 39 | return true; |
| 40 | |
| Rafael Espindola | becdf63 | 2014-06-20 22:37:01 +0000 | [diff] [blame] | 41 | return false; |
| 42 | } |
| 43 | |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 44 | void MCObjectFileInfo::initMachOMCObjectFileInfo(Triple T) { |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 45 | // MachO |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 46 | SupportsWeakOmittedEHFrame = false; |
| 47 | |
| Tim Northover | e19bed7 | 2014-07-23 12:32:47 +0000 | [diff] [blame] | 48 | if (T.isOSDarwin() && T.getArch() == Triple::aarch64) |
| Tim Northover | 00ed996 | 2014-03-29 10:18:08 +0000 | [diff] [blame] | 49 | SupportsCompactUnwindWithoutEHFrame = true; |
| 50 | |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 51 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
| 52 | | dwarf::DW_EH_PE_sdata4; |
| Rafael Espindola | aa7851d | 2014-05-12 13:47:05 +0000 | [diff] [blame] | 53 | LSDAEncoding = FDECFIEncoding = dwarf::DW_EH_PE_pcrel; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 54 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 55 | dwarf::DW_EH_PE_sdata4; |
| 56 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 57 | // .comm doesn't support alignment before Leopard. |
| 58 | if (T.isMacOSX() && T.isMacOSXVersionLT(10, 5)) |
| 59 | CommDirectiveSupportsAlignment = false; |
| 60 | |
| 61 | TextSection // .text |
| 62 | = Ctx->getMachOSection("__TEXT", "__text", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 63 | MachO::S_ATTR_PURE_INSTRUCTIONS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 64 | SectionKind::getText()); |
| 65 | DataSection // .data |
| 66 | = Ctx->getMachOSection("__DATA", "__data", 0, |
| 67 | SectionKind::getDataRel()); |
| 68 | |
| NAKAMURA Takumi | 68fa6f9 | 2013-09-21 02:34:45 +0000 | [diff] [blame] | 69 | // BSSSection might not be expected initialized on msvc. |
| Craig Topper | bb694de | 2014-04-13 04:57:38 +0000 | [diff] [blame] | 70 | BSSSection = nullptr; |
| NAKAMURA Takumi | 68fa6f9 | 2013-09-21 02:34:45 +0000 | [diff] [blame] | 71 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 72 | TLSDataSection // .tdata |
| 73 | = Ctx->getMachOSection("__DATA", "__thread_data", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 74 | MachO::S_THREAD_LOCAL_REGULAR, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 75 | SectionKind::getDataRel()); |
| 76 | TLSBSSSection // .tbss |
| 77 | = Ctx->getMachOSection("__DATA", "__thread_bss", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 78 | MachO::S_THREAD_LOCAL_ZEROFILL, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 79 | SectionKind::getThreadBSS()); |
| 80 | |
| 81 | // TODO: Verify datarel below. |
| 82 | TLSTLVSection // .tlv |
| 83 | = Ctx->getMachOSection("__DATA", "__thread_vars", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 84 | MachO::S_THREAD_LOCAL_VARIABLES, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 85 | SectionKind::getDataRel()); |
| 86 | |
| 87 | TLSThreadInitSection |
| 88 | = Ctx->getMachOSection("__DATA", "__thread_init", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 89 | MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS, |
| Jim Grosbach | 0dde349 | 2011-11-15 16:46:22 +0000 | [diff] [blame] | 90 | SectionKind::getDataRel()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 91 | |
| 92 | CStringSection // .cstring |
| 93 | = Ctx->getMachOSection("__TEXT", "__cstring", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 94 | MachO::S_CSTRING_LITERALS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 95 | SectionKind::getMergeable1ByteCString()); |
| 96 | UStringSection |
| 97 | = Ctx->getMachOSection("__TEXT","__ustring", 0, |
| 98 | SectionKind::getMergeable2ByteCString()); |
| 99 | FourByteConstantSection // .literal4 |
| 100 | = Ctx->getMachOSection("__TEXT", "__literal4", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 101 | MachO::S_4BYTE_LITERALS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 102 | SectionKind::getMergeableConst4()); |
| 103 | EightByteConstantSection // .literal8 |
| 104 | = Ctx->getMachOSection("__TEXT", "__literal8", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 105 | MachO::S_8BYTE_LITERALS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 106 | SectionKind::getMergeableConst8()); |
| 107 | |
| Rafael Espindola | 1f3de49 | 2014-02-13 23:16:11 +0000 | [diff] [blame] | 108 | SixteenByteConstantSection // .literal16 |
| 109 | = Ctx->getMachOSection("__TEXT", "__literal16", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 110 | MachO::S_16BYTE_LITERALS, |
| Rafael Espindola | 1f3de49 | 2014-02-13 23:16:11 +0000 | [diff] [blame] | 111 | SectionKind::getMergeableConst16()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 112 | |
| 113 | ReadOnlySection // .const |
| 114 | = Ctx->getMachOSection("__TEXT", "__const", 0, |
| 115 | SectionKind::getReadOnly()); |
| 116 | |
| Akira Hatanaka | 8ad7399 | 2015-10-15 05:28:38 +0000 | [diff] [blame^] | 117 | // If the target is not powerpc, map the coal sections to the non-coal |
| 118 | // sections. |
| 119 | // |
| 120 | // "__TEXT/__textcoal_nt" => section "__TEXT/__text" |
| 121 | // "__TEXT/__const_coal" => section "__TEXT/__const" |
| 122 | // "__DATA/__datacoal_nt" => section "__DATA/__data" |
| 123 | Triple::ArchType ArchTy = T.getArch(); |
| 124 | |
| 125 | if (ArchTy == Triple::ppc || ArchTy == Triple::ppc64) { |
| 126 | TextCoalSection |
| 127 | = Ctx->getMachOSection("__TEXT", "__textcoal_nt", |
| 128 | MachO::S_COALESCED | |
| 129 | MachO::S_ATTR_PURE_INSTRUCTIONS, |
| 130 | SectionKind::getText()); |
| 131 | ConstTextCoalSection |
| 132 | = Ctx->getMachOSection("__TEXT", "__const_coal", |
| 133 | MachO::S_COALESCED, |
| 134 | SectionKind::getReadOnly()); |
| 135 | DataCoalSection |
| 136 | = Ctx->getMachOSection("__DATA","__datacoal_nt", |
| 137 | MachO::S_COALESCED, |
| 138 | SectionKind::getDataRel()); |
| 139 | } else { |
| 140 | TextCoalSection = TextSection; |
| 141 | ConstTextCoalSection = ReadOnlySection; |
| 142 | DataCoalSection = DataSection; |
| 143 | } |
| 144 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 145 | ConstDataSection // .const_data |
| 146 | = Ctx->getMachOSection("__DATA", "__const", 0, |
| 147 | SectionKind::getReadOnlyWithRel()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 148 | DataCommonSection |
| 149 | = Ctx->getMachOSection("__DATA","__common", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 150 | MachO::S_ZEROFILL, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 151 | SectionKind::getBSS()); |
| 152 | DataBSSSection |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 153 | = Ctx->getMachOSection("__DATA","__bss", MachO::S_ZEROFILL, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 154 | SectionKind::getBSS()); |
| 155 | |
| 156 | |
| 157 | LazySymbolPointerSection |
| 158 | = Ctx->getMachOSection("__DATA", "__la_symbol_ptr", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 159 | MachO::S_LAZY_SYMBOL_POINTERS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 160 | SectionKind::getMetadata()); |
| 161 | NonLazySymbolPointerSection |
| 162 | = Ctx->getMachOSection("__DATA", "__nl_symbol_ptr", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 163 | MachO::S_NON_LAZY_SYMBOL_POINTERS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 164 | SectionKind::getMetadata()); |
| 165 | |
| 166 | if (RelocM == Reloc::Static) { |
| 167 | StaticCtorSection |
| 168 | = Ctx->getMachOSection("__TEXT", "__constructor", 0, |
| 169 | SectionKind::getDataRel()); |
| 170 | StaticDtorSection |
| 171 | = Ctx->getMachOSection("__TEXT", "__destructor", 0, |
| 172 | SectionKind::getDataRel()); |
| 173 | } else { |
| 174 | StaticCtorSection |
| 175 | = Ctx->getMachOSection("__DATA", "__mod_init_func", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 176 | MachO::S_MOD_INIT_FUNC_POINTERS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 177 | SectionKind::getDataRel()); |
| 178 | StaticDtorSection |
| 179 | = Ctx->getMachOSection("__DATA", "__mod_term_func", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 180 | MachO::S_MOD_TERM_FUNC_POINTERS, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 181 | SectionKind::getDataRel()); |
| 182 | } |
| 183 | |
| 184 | // Exception Handling. |
| 185 | LSDASection = Ctx->getMachOSection("__TEXT", "__gcc_except_tab", 0, |
| 186 | SectionKind::getReadOnlyWithRel()); |
| 187 | |
| Craig Topper | bb694de | 2014-04-13 04:57:38 +0000 | [diff] [blame] | 188 | COFFDebugSymbolsSection = nullptr; |
| Timur Iskhodzhanov | f166f6c | 2014-01-30 01:39:17 +0000 | [diff] [blame] | 189 | |
| Rafael Espindola | becdf63 | 2014-06-20 22:37:01 +0000 | [diff] [blame] | 190 | if (useCompactUnwind(T)) { |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 191 | CompactUnwindSection = |
| Rafael Espindola | becdf63 | 2014-06-20 22:37:01 +0000 | [diff] [blame] | 192 | Ctx->getMachOSection("__LD", "__compact_unwind", MachO::S_ATTR_DEBUG, |
| 193 | SectionKind::getReadOnly()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 194 | |
| Bill Wendling | 2d1df6b | 2013-04-10 21:42:06 +0000 | [diff] [blame] | 195 | if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86) |
| 196 | CompactUnwindDwarfEHFrameOnly = 0x04000000; |
| Tim Northover | e19bed7 | 2014-07-23 12:32:47 +0000 | [diff] [blame] | 197 | else if (T.getArch() == Triple::aarch64) |
| Tim Northover | 00ed996 | 2014-03-29 10:18:08 +0000 | [diff] [blame] | 198 | CompactUnwindDwarfEHFrameOnly = 0x03000000; |
| Bill Wendling | 2d1df6b | 2013-04-10 21:42:06 +0000 | [diff] [blame] | 199 | } |
| 200 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 201 | // Debug Information. |
| Eric Christopher | 4996c70 | 2011-11-07 09:24:32 +0000 | [diff] [blame] | 202 | DwarfAccelNamesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 203 | Ctx->getMachOSection("__DWARF", "__apple_names", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 204 | SectionKind::getMetadata(), "names_begin"); |
| Eric Christopher | 4996c70 | 2011-11-07 09:24:32 +0000 | [diff] [blame] | 205 | DwarfAccelObjCSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 206 | Ctx->getMachOSection("__DWARF", "__apple_objc", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 207 | SectionKind::getMetadata(), "objc_begin"); |
| Eric Christopher | 4996c70 | 2011-11-07 09:24:32 +0000 | [diff] [blame] | 208 | // 16 character section limit... |
| 209 | DwarfAccelNamespaceSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 210 | Ctx->getMachOSection("__DWARF", "__apple_namespac", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 211 | SectionKind::getMetadata(), "namespac_begin"); |
| Eric Christopher | 4996c70 | 2011-11-07 09:24:32 +0000 | [diff] [blame] | 212 | DwarfAccelTypesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 213 | Ctx->getMachOSection("__DWARF", "__apple_types", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 214 | SectionKind::getMetadata(), "types_begin"); |
| Jim Grosbach | dc1e36e | 2012-05-11 01:41:30 +0000 | [diff] [blame] | 215 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 216 | DwarfAbbrevSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 217 | Ctx->getMachOSection("__DWARF", "__debug_abbrev", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 218 | SectionKind::getMetadata(), "section_abbrev"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 219 | DwarfInfoSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 220 | Ctx->getMachOSection("__DWARF", "__debug_info", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 221 | SectionKind::getMetadata(), "section_info"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 222 | DwarfLineSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 223 | Ctx->getMachOSection("__DWARF", "__debug_line", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 224 | SectionKind::getMetadata(), "section_line"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 225 | DwarfFrameSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 226 | Ctx->getMachOSection("__DWARF", "__debug_frame", MachO::S_ATTR_DEBUG, |
| 227 | SectionKind::getMetadata()); |
| Krzysztof Parzyszek | 228daa6 | 2013-02-12 18:00:14 +0000 | [diff] [blame] | 228 | DwarfPubNamesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 229 | Ctx->getMachOSection("__DWARF", "__debug_pubnames", MachO::S_ATTR_DEBUG, |
| 230 | SectionKind::getMetadata()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 231 | DwarfPubTypesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 232 | Ctx->getMachOSection("__DWARF", "__debug_pubtypes", MachO::S_ATTR_DEBUG, |
| 233 | SectionKind::getMetadata()); |
| Eric Christopher | b0e7694 | 2013-09-09 20:03:14 +0000 | [diff] [blame] | 234 | DwarfGnuPubNamesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 235 | Ctx->getMachOSection("__DWARF", "__debug_gnu_pubn", MachO::S_ATTR_DEBUG, |
| 236 | SectionKind::getMetadata()); |
| Eric Christopher | b0e7694 | 2013-09-09 20:03:14 +0000 | [diff] [blame] | 237 | DwarfGnuPubTypesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 238 | Ctx->getMachOSection("__DWARF", "__debug_gnu_pubt", MachO::S_ATTR_DEBUG, |
| 239 | SectionKind::getMetadata()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 240 | DwarfStrSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 241 | Ctx->getMachOSection("__DWARF", "__debug_str", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 242 | SectionKind::getMetadata(), "info_string"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 243 | DwarfLocSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 244 | Ctx->getMachOSection("__DWARF", "__debug_loc", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 245 | SectionKind::getMetadata(), "section_debug_loc"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 246 | DwarfARangesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 247 | Ctx->getMachOSection("__DWARF", "__debug_aranges", MachO::S_ATTR_DEBUG, |
| 248 | SectionKind::getMetadata()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 249 | DwarfRangesSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 250 | Ctx->getMachOSection("__DWARF", "__debug_ranges", MachO::S_ATTR_DEBUG, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 251 | SectionKind::getMetadata(), "debug_range"); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 252 | DwarfDebugInlineSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 253 | Ctx->getMachOSection("__DWARF", "__debug_inlined", MachO::S_ATTR_DEBUG, |
| 254 | SectionKind::getMetadata()); |
| 255 | StackMapSection = Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps", |
| 256 | 0, SectionKind::getMetadata()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 257 | |
| Sanjoy Das | c63244d | 2015-06-15 18:44:08 +0000 | [diff] [blame] | 258 | FaultMapSection = Ctx->getMachOSection("__LLVM_FAULTMAPS", "__llvm_faultmaps", |
| 259 | 0, SectionKind::getMetadata()); |
| 260 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 261 | TLSExtraDataSection = TLSTLVSection; |
| 262 | } |
| 263 | |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 264 | void MCObjectFileInfo::initELFMCObjectFileInfo(Triple T) { |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 265 | switch (T.getArch()) { |
| 266 | case Triple::mips: |
| 267 | case Triple::mipsel: |
| Rafael Espindola | b9b7ae0 | 2013-04-03 03:13:19 +0000 | [diff] [blame] | 268 | FDECFIEncoding = dwarf::DW_EH_PE_sdata4; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 269 | break; |
| 270 | case Triple::mips64: |
| 271 | case Triple::mips64el: |
| Rafael Espindola | b9b7ae0 | 2013-04-03 03:13:19 +0000 | [diff] [blame] | 272 | FDECFIEncoding = dwarf::DW_EH_PE_sdata8; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 273 | break; |
| Rafael Espindola | d11591b | 2014-11-27 17:13:56 +0000 | [diff] [blame] | 274 | case Triple::x86_64: |
| 275 | FDECFIEncoding = dwarf::DW_EH_PE_pcrel | |
| 276 | ((CMModel == CodeModel::Large) ? dwarf::DW_EH_PE_sdata8 |
| 277 | : dwarf::DW_EH_PE_sdata4); |
| Rafael Espindola | d11591b | 2014-11-27 17:13:56 +0000 | [diff] [blame] | 278 | break; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 279 | default: |
| Rafael Espindola | ef9d349 | 2013-03-15 05:51:57 +0000 | [diff] [blame] | 280 | FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 281 | break; |
| 282 | } |
| Rafael Espindola | ef9d349 | 2013-03-15 05:51:57 +0000 | [diff] [blame] | 283 | |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 284 | switch (T.getArch()) { |
| Joerg Sonnenberger | cf86ce1 | 2014-05-07 07:49:34 +0000 | [diff] [blame] | 285 | case Triple::arm: |
| 286 | case Triple::armeb: |
| 287 | case Triple::thumb: |
| 288 | case Triple::thumbeb: |
| Joerg Sonnenberger | 94cbb66 | 2014-05-13 17:58:13 +0000 | [diff] [blame] | 289 | if (Ctx->getAsmInfo()->getExceptionHandlingType() == ExceptionHandling::ARM) |
| 290 | break; |
| 291 | // Fallthrough if not using EHABI |
| Joerg Sonnenberger | 6637d4e | 2014-07-24 19:25:16 +0000 | [diff] [blame] | 292 | case Triple::ppc: |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 293 | case Triple::x86: |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 294 | PersonalityEncoding = (RelocM == Reloc::PIC_) |
| Jim Grosbach | 0dde349 | 2011-11-15 16:46:22 +0000 | [diff] [blame] | 295 | ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 |
| 296 | : dwarf::DW_EH_PE_absptr; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 297 | LSDAEncoding = (RelocM == Reloc::PIC_) |
| 298 | ? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 |
| 299 | : dwarf::DW_EH_PE_absptr; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 300 | TTypeEncoding = (RelocM == Reloc::PIC_) |
| Jim Grosbach | 0dde349 | 2011-11-15 16:46:22 +0000 | [diff] [blame] | 301 | ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4 |
| 302 | : dwarf::DW_EH_PE_absptr; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 303 | break; |
| 304 | case Triple::x86_64: |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 305 | if (RelocM == Reloc::PIC_) { |
| 306 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 307 | ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) |
| 308 | ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); |
| 309 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | |
| 310 | (CMModel == CodeModel::Small |
| 311 | ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 312 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 313 | ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium) |
| 314 | ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8); |
| 315 | } else { |
| 316 | PersonalityEncoding = |
| 317 | (CMModel == CodeModel::Small || CMModel == CodeModel::Medium) |
| 318 | ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; |
| 319 | LSDAEncoding = (CMModel == CodeModel::Small) |
| 320 | ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 321 | TTypeEncoding = (CMModel == CodeModel::Small) |
| 322 | ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr; |
| 323 | } |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 324 | break; |
| 325 | case Triple::aarch64: |
| 326 | case Triple::aarch64_be: |
| Tim Northover | e0e3aef | 2013-01-31 12:12:40 +0000 | [diff] [blame] | 327 | // The small model guarantees static code/data size < 4GB, but not where it |
| 328 | // will be in memory. Most of these could end up >2GB away so even a signed |
| 329 | // pc-relative 32-bit address is insufficient, theoretically. |
| 330 | if (RelocM == Reloc::PIC_) { |
| 331 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 332 | dwarf::DW_EH_PE_sdata8; |
| 333 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8; |
| Tim Northover | e0e3aef | 2013-01-31 12:12:40 +0000 | [diff] [blame] | 334 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 335 | dwarf::DW_EH_PE_sdata8; |
| 336 | } else { |
| 337 | PersonalityEncoding = dwarf::DW_EH_PE_absptr; |
| 338 | LSDAEncoding = dwarf::DW_EH_PE_absptr; |
| Tim Northover | e0e3aef | 2013-01-31 12:12:40 +0000 | [diff] [blame] | 339 | TTypeEncoding = dwarf::DW_EH_PE_absptr; |
| 340 | } |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 341 | break; |
| Logan Chien | c002981 | 2014-05-30 16:48:56 +0000 | [diff] [blame] | 342 | case Triple::mips: |
| 343 | case Triple::mipsel: |
| Petar Jovanovic | 35f0574 | 2014-11-05 22:42:31 +0000 | [diff] [blame] | 344 | case Triple::mips64: |
| 345 | case Triple::mips64el: |
| Daniel Sanders | c95f3f8 | 2015-06-02 20:32:50 +0000 | [diff] [blame] | 346 | // MIPS uses indirect pointer to refer personality functions and types, so |
| 347 | // that the eh_frame section can be read-only. DW.ref.personality will be |
| 348 | // generated for relocation. |
| Logan Chien | c002981 | 2014-05-30 16:48:56 +0000 | [diff] [blame] | 349 | PersonalityEncoding = dwarf::DW_EH_PE_indirect; |
| Daniel Sanders | c95f3f8 | 2015-06-02 20:32:50 +0000 | [diff] [blame] | 350 | // FIXME: The N64 ABI probably ought to use DW_EH_PE_sdata8 but we can't |
| 351 | // identify N64 from just a triple. |
| 352 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 353 | dwarf::DW_EH_PE_sdata4; |
| 354 | // We don't support PC-relative LSDA references in GAS so we use the default |
| 355 | // DW_EH_PE_absptr for those. |
| Logan Chien | c002981 | 2014-05-30 16:48:56 +0000 | [diff] [blame] | 356 | break; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 357 | case Triple::ppc64: |
| 358 | case Triple::ppc64le: |
| Adhemerval Zanella | 1ae2248 | 2013-01-09 17:08:15 +0000 | [diff] [blame] | 359 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 360 | dwarf::DW_EH_PE_udata8; |
| Adhemerval Zanella | 1ae2248 | 2013-01-09 17:08:15 +0000 | [diff] [blame] | 361 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8; |
| Adhemerval Zanella | 1ae2248 | 2013-01-09 17:08:15 +0000 | [diff] [blame] | 362 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 363 | dwarf::DW_EH_PE_udata8; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 364 | break; |
| Douglas Katzman | 9160e78 | 2015-04-29 20:30:57 +0000 | [diff] [blame] | 365 | case Triple::sparcel: |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 366 | case Triple::sparc: |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 367 | if (RelocM == Reloc::PIC_) { |
| 368 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; |
| 369 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 370 | dwarf::DW_EH_PE_sdata4; |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 371 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 372 | dwarf::DW_EH_PE_sdata4; |
| 373 | } else { |
| 374 | LSDAEncoding = dwarf::DW_EH_PE_absptr; |
| 375 | PersonalityEncoding = dwarf::DW_EH_PE_absptr; |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 376 | TTypeEncoding = dwarf::DW_EH_PE_absptr; |
| 377 | } |
| Joerg Sonnenberger | fa9cf65 | 2014-04-30 23:36:24 +0000 | [diff] [blame] | 378 | break; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 379 | case Triple::sparcv9: |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 380 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; |
| 381 | if (RelocM == Reloc::PIC_) { |
| 382 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 383 | dwarf::DW_EH_PE_sdata4; |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 384 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 385 | dwarf::DW_EH_PE_sdata4; |
| 386 | } else { |
| 387 | PersonalityEncoding = dwarf::DW_EH_PE_absptr; |
| Jakob Stoklund Olesen | 83c6773 | 2014-01-28 02:52:26 +0000 | [diff] [blame] | 388 | TTypeEncoding = dwarf::DW_EH_PE_absptr; |
| 389 | } |
| Joerg Sonnenberger | fa9cf65 | 2014-04-30 23:36:24 +0000 | [diff] [blame] | 390 | break; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 391 | case Triple::systemz: |
| Ulrich Weigand | 0213e7f | 2013-05-06 16:11:12 +0000 | [diff] [blame] | 392 | // All currently-defined code models guarantee that 4-byte PC-relative |
| 393 | // values will be in range. |
| Ulrich Weigand | e7c6dfe | 2013-05-06 17:28:30 +0000 | [diff] [blame] | 394 | if (RelocM == Reloc::PIC_) { |
| 395 | PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 396 | dwarf::DW_EH_PE_sdata4; |
| 397 | LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; |
| Ulrich Weigand | e7c6dfe | 2013-05-06 17:28:30 +0000 | [diff] [blame] | 398 | TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | |
| 399 | dwarf::DW_EH_PE_sdata4; |
| 400 | } else { |
| 401 | PersonalityEncoding = dwarf::DW_EH_PE_absptr; |
| 402 | LSDAEncoding = dwarf::DW_EH_PE_absptr; |
| Ulrich Weigand | e7c6dfe | 2013-05-06 17:28:30 +0000 | [diff] [blame] | 403 | TTypeEncoding = dwarf::DW_EH_PE_absptr; |
| 404 | } |
| Joerg Sonnenberger | fa9cf65 | 2014-04-30 23:36:24 +0000 | [diff] [blame] | 405 | break; |
| Joerg Sonnenberger | 7c44252 | 2014-04-30 23:23:14 +0000 | [diff] [blame] | 406 | default: |
| 407 | break; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 408 | } |
| 409 | |
| David Chisnall | 07f8d3e | 2012-02-17 17:31:15 +0000 | [diff] [blame] | 410 | // Solaris requires different flags for .eh_frame to seemingly every other |
| 411 | // platform. |
| David Chisnall | bbec872 | 2012-04-10 11:44:33 +0000 | [diff] [blame] | 412 | EHSectionType = ELF::SHT_PROGBITS; |
| David Chisnall | 07f8d3e | 2012-02-17 17:31:15 +0000 | [diff] [blame] | 413 | EHSectionFlags = ELF::SHF_ALLOC; |
| Simon Pilgrim | a279410 | 2014-11-22 19:12:10 +0000 | [diff] [blame] | 414 | if (T.isOSSolaris()) { |
| David Chisnall | bbec872 | 2012-04-10 11:44:33 +0000 | [diff] [blame] | 415 | if (T.getArch() == Triple::x86_64) |
| 416 | EHSectionType = ELF::SHT_X86_64_UNWIND; |
| 417 | else |
| 418 | EHSectionFlags |= ELF::SHF_WRITE; |
| 419 | } |
| David Chisnall | 07f8d3e | 2012-02-17 17:31:15 +0000 | [diff] [blame] | 420 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 421 | // ELF |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 422 | BSSSection = Ctx->getELFSection(".bss", ELF::SHT_NOBITS, |
| 423 | ELF::SHF_WRITE | ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 424 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 425 | TextSection = Ctx->getELFSection(".text", ELF::SHT_PROGBITS, |
| 426 | ELF::SHF_EXECINSTR | ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 427 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 428 | DataSection = Ctx->getELFSection(".data", ELF::SHT_PROGBITS, |
| 429 | ELF::SHF_WRITE | ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 430 | |
| 431 | ReadOnlySection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 432 | Ctx->getELFSection(".rodata", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 433 | |
| 434 | TLSDataSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 435 | Ctx->getELFSection(".tdata", ELF::SHT_PROGBITS, |
| 436 | ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 437 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 438 | TLSBSSSection = Ctx->getELFSection( |
| 439 | ".tbss", ELF::SHT_NOBITS, ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 440 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 441 | DataRelSection = Ctx->getELFSection(".data.rel", ELF::SHT_PROGBITS, |
| 442 | ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 443 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 444 | DataRelLocalSection = Ctx->getELFSection(".data.rel.local", ELF::SHT_PROGBITS, |
| 445 | ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 446 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 447 | DataRelROSection = Ctx->getELFSection(".data.rel.ro", ELF::SHT_PROGBITS, |
| 448 | ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 449 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 450 | DataRelROLocalSection = Ctx->getELFSection( |
| 451 | ".data.rel.ro.local", ELF::SHT_PROGBITS, ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 452 | |
| 453 | MergeableConst4Section = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 454 | Ctx->getELFSection(".rodata.cst4", ELF::SHT_PROGBITS, |
| 455 | ELF::SHF_ALLOC | ELF::SHF_MERGE, 4, ""); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 456 | |
| 457 | MergeableConst8Section = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 458 | Ctx->getELFSection(".rodata.cst8", ELF::SHT_PROGBITS, |
| 459 | ELF::SHF_ALLOC | ELF::SHF_MERGE, 8, ""); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 460 | |
| 461 | MergeableConst16Section = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 462 | Ctx->getELFSection(".rodata.cst16", ELF::SHT_PROGBITS, |
| 463 | ELF::SHF_ALLOC | ELF::SHF_MERGE, 16, ""); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 464 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 465 | StaticCtorSection = Ctx->getELFSection(".ctors", ELF::SHT_PROGBITS, |
| 466 | ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 467 | |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 468 | StaticDtorSection = Ctx->getELFSection(".dtors", ELF::SHT_PROGBITS, |
| 469 | ELF::SHF_ALLOC | ELF::SHF_WRITE); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 470 | |
| 471 | // Exception Handling Sections. |
| 472 | |
| 473 | // FIXME: We're emitting LSDA info into a readonly section on ELF, even though |
| 474 | // it contains relocatable pointers. In PIC mode, this is probably a big |
| 475 | // runtime hit for C++ apps. Either the contents of the LSDA need to be |
| 476 | // adjusted or this should be a data section. |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 477 | LSDASection = Ctx->getELFSection(".gcc_except_table", ELF::SHT_PROGBITS, |
| 478 | ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 479 | |
| Craig Topper | bb694de | 2014-04-13 04:57:38 +0000 | [diff] [blame] | 480 | COFFDebugSymbolsSection = nullptr; |
| Timur Iskhodzhanov | f166f6c | 2014-01-30 01:39:17 +0000 | [diff] [blame] | 481 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 482 | // Debug Info Sections. |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 483 | DwarfAbbrevSection = Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0, |
| 484 | "section_abbrev"); |
| 485 | DwarfInfoSection = |
| 486 | Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0, "section_info"); |
| Rafael Espindola | 23562fc | 2015-03-11 04:20:31 +0000 | [diff] [blame] | 487 | DwarfLineSection = Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0); |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 488 | DwarfFrameSection = Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0); |
| Krzysztof Parzyszek | 228daa6 | 2013-02-12 18:00:14 +0000 | [diff] [blame] | 489 | DwarfPubNamesSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 490 | Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 491 | DwarfPubTypesSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 492 | Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0); |
| Eric Christopher | b0e7694 | 2013-09-09 20:03:14 +0000 | [diff] [blame] | 493 | DwarfGnuPubNamesSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 494 | Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0); |
| Eric Christopher | b0e7694 | 2013-09-09 20:03:14 +0000 | [diff] [blame] | 495 | DwarfGnuPubTypesSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 496 | Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0); |
| Rafael Espindola | 23562fc | 2015-03-11 04:20:31 +0000 | [diff] [blame] | 497 | DwarfStrSection = |
| 498 | Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS, |
| 499 | ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, ""); |
| 500 | DwarfLocSection = Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 501 | DwarfARangesSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 502 | Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 503 | DwarfRangesSection = |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 504 | Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0, "debug_range"); |
| Eric Christopher | 27ed8ec | 2012-11-28 02:49:34 +0000 | [diff] [blame] | 505 | |
| 506 | // DWARF5 Experimental Debug Info |
| 507 | |
| 508 | // Accelerator Tables |
| Eric Christopher | a0ad67d | 2012-10-08 21:41:30 +0000 | [diff] [blame] | 509 | DwarfAccelNamesSection = |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 510 | Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0, "names_begin"); |
| Eric Christopher | a0ad67d | 2012-10-08 21:41:30 +0000 | [diff] [blame] | 511 | DwarfAccelObjCSection = |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 512 | Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0, "objc_begin"); |
| 513 | DwarfAccelNamespaceSection = Ctx->getELFSection( |
| 514 | ".apple_namespaces", ELF::SHT_PROGBITS, 0, "namespac_begin"); |
| Eric Christopher | a0ad67d | 2012-10-08 21:41:30 +0000 | [diff] [blame] | 515 | DwarfAccelTypesSection = |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 516 | Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0, "types_begin"); |
| Eric Christopher | c3b434b | 2012-11-28 02:49:38 +0000 | [diff] [blame] | 517 | |
| 518 | // Fission Sections |
| Rafael Espindola | 23562fc | 2015-03-11 04:20:31 +0000 | [diff] [blame] | 519 | DwarfInfoDWOSection = |
| 520 | Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0); |
| 521 | DwarfTypesDWOSection = |
| 522 | Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0); |
| 523 | DwarfAbbrevDWOSection = |
| 524 | Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0); |
| 525 | DwarfStrDWOSection = |
| 526 | Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS, |
| 527 | ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, ""); |
| Eric Christopher | 3c23009 | 2012-11-30 06:47:06 +0000 | [diff] [blame] | 528 | DwarfLineDWOSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 529 | Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0); |
| Eric Christopher | 3c23009 | 2012-11-30 06:47:06 +0000 | [diff] [blame] | 530 | DwarfLocDWOSection = |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 531 | Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0, "skel_loc"); |
| Eric Christopher | c0fa867 | 2013-01-04 17:59:22 +0000 | [diff] [blame] | 532 | DwarfStrOffDWOSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 533 | Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0); |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 534 | DwarfAddrSection = |
| 535 | Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0, "addr_sec"); |
| Philip Reames | 7684618 | 2014-08-01 18:47:09 +0000 | [diff] [blame] | 536 | |
| 537 | StackMapSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 538 | Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); |
| Sanjoy Das | c63244d | 2015-06-15 18:44:08 +0000 | [diff] [blame] | 539 | |
| 540 | FaultMapSection = |
| 541 | Ctx->getELFSection(".llvm_faultmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 542 | } |
| 543 | |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 544 | void MCObjectFileInfo::initCOFFMCObjectFileInfo(Triple T) { |
| Saleem Abdulrasool | 70a0206 | 2014-06-08 03:57:49 +0000 | [diff] [blame] | 545 | bool IsWoA = T.getArch() == Triple::arm || T.getArch() == Triple::thumb; |
| 546 | |
| David Majnemer | 48227a3 | 2014-09-21 09:18:07 +0000 | [diff] [blame] | 547 | CommDirectiveSupportsAlignment = true; |
| David Majnemer | a9bdb32 | 2014-04-08 22:33:40 +0000 | [diff] [blame] | 548 | |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 549 | // COFF |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 550 | BSSSection = Ctx->getCOFFSection( |
| 551 | ".bss", COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA | |
| 552 | COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, |
| 553 | SectionKind::getBSS()); |
| 554 | TextSection = Ctx->getCOFFSection( |
| 555 | ".text", |
| 556 | (IsWoA ? COFF::IMAGE_SCN_MEM_16BIT : (COFF::SectionCharacteristics)0) | |
| 557 | COFF::IMAGE_SCN_CNT_CODE | COFF::IMAGE_SCN_MEM_EXECUTE | |
| 558 | COFF::IMAGE_SCN_MEM_READ, |
| 559 | SectionKind::getText()); |
| 560 | DataSection = Ctx->getCOFFSection( |
| 561 | ".data", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ | |
| 562 | COFF::IMAGE_SCN_MEM_WRITE, |
| 563 | SectionKind::getDataRel()); |
| 564 | ReadOnlySection = Ctx->getCOFFSection( |
| 565 | ".rdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, |
| 566 | SectionKind::getReadOnly()); |
| Saleem Abdulrasool | a35f04a | 2014-06-08 00:34:23 +0000 | [diff] [blame] | 567 | |
| Saleem Abdulrasool | ed7fc4b | 2014-06-08 00:34:27 +0000 | [diff] [blame] | 568 | if (T.isKnownWindowsMSVCEnvironment() || T.isWindowsItaniumEnvironment()) { |
| Michael J. Spencer | b560d07 | 2012-02-23 21:56:08 +0000 | [diff] [blame] | 569 | StaticCtorSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 570 | Ctx->getCOFFSection(".CRT$XCU", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 571 | COFF::IMAGE_SCN_MEM_READ, |
| 572 | SectionKind::getReadOnly()); |
| Saleem Abdulrasool | a35f04a | 2014-06-08 00:34:23 +0000 | [diff] [blame] | 573 | StaticDtorSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 574 | Ctx->getCOFFSection(".CRT$XTX", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 575 | COFF::IMAGE_SCN_MEM_READ, |
| 576 | SectionKind::getReadOnly()); |
| Michael J. Spencer | b560d07 | 2012-02-23 21:56:08 +0000 | [diff] [blame] | 577 | } else { |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 578 | StaticCtorSection = Ctx->getCOFFSection( |
| 579 | ".ctors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 580 | COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, |
| 581 | SectionKind::getDataRel()); |
| 582 | StaticDtorSection = Ctx->getCOFFSection( |
| 583 | ".dtors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 584 | COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE, |
| 585 | SectionKind::getDataRel()); |
| Anton Korobeynikov | 37d7300 | 2012-09-23 15:53:47 +0000 | [diff] [blame] | 586 | } |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 587 | |
| 588 | // FIXME: We're emitting LSDA info into a readonly section on COFF, even |
| 589 | // though it contains relocatable pointers. In PIC mode, this is probably a |
| 590 | // big runtime hit for C++ apps. Either the contents of the LSDA need to be |
| 591 | // adjusted or this should be a data section. |
| NAKAMURA Takumi | 1db5995 | 2014-06-25 12:41:52 +0000 | [diff] [blame] | 592 | assert(T.isOSWindows() && "Windows is the only supported COFF target"); |
| 593 | if (T.getArch() == Triple::x86_64) { |
| 594 | // On Windows 64 with SEH, the LSDA is emitted into the .xdata section |
| Hans Wennborg | 083ca9b | 2015-10-06 23:24:35 +0000 | [diff] [blame] | 595 | LSDASection = nullptr; |
| NAKAMURA Takumi | 1db5995 | 2014-06-25 12:41:52 +0000 | [diff] [blame] | 596 | } else { |
| 597 | LSDASection = Ctx->getCOFFSection(".gcc_except_table", |
| 598 | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 599 | COFF::IMAGE_SCN_MEM_READ, |
| 600 | SectionKind::getReadOnly()); |
| 601 | } |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 602 | |
| 603 | // Debug info. |
| Timur Iskhodzhanov | 31377c5 | 2014-01-28 03:48:44 +0000 | [diff] [blame] | 604 | COFFDebugSymbolsSection = |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 605 | Ctx->getCOFFSection(".debug$S", COFF::IMAGE_SCN_MEM_DISCARDABLE | |
| 606 | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 607 | COFF::IMAGE_SCN_MEM_READ, |
| 608 | SectionKind::getMetadata()); |
| Timur Iskhodzhanov | 31377c5 | 2014-01-28 03:48:44 +0000 | [diff] [blame] | 609 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 610 | DwarfAbbrevSection = Ctx->getCOFFSection( |
| 611 | ".debug_abbrev", |
| 612 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 613 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 614 | SectionKind::getMetadata(), "section_abbrev"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 615 | DwarfInfoSection = Ctx->getCOFFSection( |
| 616 | ".debug_info", |
| 617 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 618 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 619 | SectionKind::getMetadata(), "section_info"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 620 | DwarfLineSection = Ctx->getCOFFSection( |
| 621 | ".debug_line", |
| 622 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 623 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 624 | SectionKind::getMetadata(), "section_line"); |
| 625 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 626 | DwarfFrameSection = Ctx->getCOFFSection( |
| 627 | ".debug_frame", |
| 628 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 629 | COFF::IMAGE_SCN_MEM_READ, |
| 630 | SectionKind::getMetadata()); |
| 631 | DwarfPubNamesSection = Ctx->getCOFFSection( |
| 632 | ".debug_pubnames", |
| 633 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 634 | COFF::IMAGE_SCN_MEM_READ, |
| 635 | SectionKind::getMetadata()); |
| 636 | DwarfPubTypesSection = Ctx->getCOFFSection( |
| 637 | ".debug_pubtypes", |
| 638 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 639 | COFF::IMAGE_SCN_MEM_READ, |
| 640 | SectionKind::getMetadata()); |
| 641 | DwarfGnuPubNamesSection = Ctx->getCOFFSection( |
| 642 | ".debug_gnu_pubnames", |
| 643 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 644 | COFF::IMAGE_SCN_MEM_READ, |
| 645 | SectionKind::getMetadata()); |
| 646 | DwarfGnuPubTypesSection = Ctx->getCOFFSection( |
| 647 | ".debug_gnu_pubtypes", |
| 648 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 649 | COFF::IMAGE_SCN_MEM_READ, |
| 650 | SectionKind::getMetadata()); |
| 651 | DwarfStrSection = Ctx->getCOFFSection( |
| 652 | ".debug_str", |
| 653 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 654 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 655 | SectionKind::getMetadata(), "info_string"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 656 | DwarfLocSection = Ctx->getCOFFSection( |
| 657 | ".debug_loc", |
| 658 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 659 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 660 | SectionKind::getMetadata(), "section_debug_loc"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 661 | DwarfARangesSection = Ctx->getCOFFSection( |
| 662 | ".debug_aranges", |
| 663 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 664 | COFF::IMAGE_SCN_MEM_READ, |
| 665 | SectionKind::getMetadata()); |
| 666 | DwarfRangesSection = Ctx->getCOFFSection( |
| 667 | ".debug_ranges", |
| 668 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 669 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 670 | SectionKind::getMetadata(), "debug_range"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 671 | DwarfInfoDWOSection = Ctx->getCOFFSection( |
| 672 | ".debug_info.dwo", |
| 673 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 674 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 675 | SectionKind::getMetadata(), "section_info_dwo"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 676 | DwarfTypesDWOSection = Ctx->getCOFFSection( |
| 677 | ".debug_types.dwo", |
| 678 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 679 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | b03bc79 | 2015-03-10 23:06:32 +0000 | [diff] [blame] | 680 | SectionKind::getMetadata(), "section_types_dwo"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 681 | DwarfAbbrevDWOSection = Ctx->getCOFFSection( |
| 682 | ".debug_abbrev.dwo", |
| 683 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 684 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 685 | SectionKind::getMetadata(), "section_abbrev_dwo"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 686 | DwarfStrDWOSection = Ctx->getCOFFSection( |
| 687 | ".debug_str.dwo", |
| 688 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 689 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 690 | SectionKind::getMetadata(), "skel_string"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 691 | DwarfLineDWOSection = Ctx->getCOFFSection( |
| 692 | ".debug_line.dwo", |
| 693 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 694 | COFF::IMAGE_SCN_MEM_READ, |
| 695 | SectionKind::getMetadata()); |
| 696 | DwarfLocDWOSection = Ctx->getCOFFSection( |
| 697 | ".debug_loc.dwo", |
| 698 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 699 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 700 | SectionKind::getMetadata(), "skel_loc"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 701 | DwarfStrOffDWOSection = Ctx->getCOFFSection( |
| 702 | ".debug_str_offsets.dwo", |
| 703 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 704 | COFF::IMAGE_SCN_MEM_READ, |
| 705 | SectionKind::getMetadata()); |
| 706 | DwarfAddrSection = Ctx->getCOFFSection( |
| 707 | ".debug_addr", |
| 708 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 709 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 710 | SectionKind::getMetadata(), "addr_sec"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 711 | DwarfAccelNamesSection = Ctx->getCOFFSection( |
| 712 | ".apple_names", |
| 713 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 714 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 715 | SectionKind::getMetadata(), "names_begin"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 716 | DwarfAccelNamespaceSection = Ctx->getCOFFSection( |
| 717 | ".apple_namespaces", |
| 718 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 719 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 720 | SectionKind::getMetadata(), "namespac_begin"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 721 | DwarfAccelTypesSection = Ctx->getCOFFSection( |
| 722 | ".apple_types", |
| 723 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 724 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 725 | SectionKind::getMetadata(), "types_begin"); |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 726 | DwarfAccelObjCSection = Ctx->getCOFFSection( |
| 727 | ".apple_objc", |
| 728 | COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 729 | COFF::IMAGE_SCN_MEM_READ, |
| Rafael Espindola | 6b9998b | 2015-03-10 22:00:25 +0000 | [diff] [blame] | 730 | SectionKind::getMetadata(), "objc_begin"); |
| Frederic Riss | 3f1a0a7 | 2014-11-14 20:33:40 +0000 | [diff] [blame] | 731 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 732 | DrectveSection = Ctx->getCOFFSection( |
| 733 | ".drectve", COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE, |
| 734 | SectionKind::getMetadata()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 735 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 736 | PDataSection = Ctx->getCOFFSection( |
| 737 | ".pdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, |
| 738 | SectionKind::getDataRel()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 739 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 740 | XDataSection = Ctx->getCOFFSection( |
| 741 | ".xdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ, |
| 742 | SectionKind::getDataRel()); |
| Saleem Abdulrasool | a35f04a | 2014-06-08 00:34:23 +0000 | [diff] [blame] | 743 | |
| David Majnemer | 4eecd30 | 2015-05-30 04:56:02 +0000 | [diff] [blame] | 744 | SXDataSection = Ctx->getCOFFSection(".sxdata", COFF::IMAGE_SCN_LNK_INFO, |
| 745 | SectionKind::getMetadata()); |
| 746 | |
| Rafael Espindola | 6ed58a2 | 2015-03-10 21:16:18 +0000 | [diff] [blame] | 747 | TLSDataSection = Ctx->getCOFFSection( |
| 748 | ".tls$", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ | |
| 749 | COFF::IMAGE_SCN_MEM_WRITE, |
| 750 | SectionKind::getDataRel()); |
| NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 751 | |
| Swaroop Sridhar | e9247ab | 2015-06-25 00:28:42 +0000 | [diff] [blame] | 752 | StackMapSection = Ctx->getCOFFSection(".llvm_stackmaps", |
| 753 | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 754 | COFF::IMAGE_SCN_MEM_READ, |
| NAKAMURA Takumi | 0a7d0ad | 2015-09-22 11:15:07 +0000 | [diff] [blame] | 755 | SectionKind::getReadOnly()); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 756 | } |
| 757 | |
| Daniel Sanders | 8d8b13d | 2015-06-16 12:18:07 +0000 | [diff] [blame] | 758 | void MCObjectFileInfo::InitMCObjectFileInfo(const Triple &TheTriple, |
| 759 | Reloc::Model relocm, |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 760 | CodeModel::Model cm, |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 761 | MCContext &ctx) { |
| 762 | RelocM = relocm; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 763 | CMModel = cm; |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 764 | Ctx = &ctx; |
| 765 | |
| 766 | // Common. |
| 767 | CommDirectiveSupportsAlignment = true; |
| 768 | SupportsWeakOmittedEHFrame = true; |
| Tim Northover | d1c6f51 | 2014-03-29 09:03:13 +0000 | [diff] [blame] | 769 | SupportsCompactUnwindWithoutEHFrame = false; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 770 | |
| Rafael Espindola | aa7851d | 2014-05-12 13:47:05 +0000 | [diff] [blame] | 771 | PersonalityEncoding = LSDAEncoding = FDECFIEncoding = TTypeEncoding = |
| 772 | dwarf::DW_EH_PE_absptr; |
| Evan Cheng | bbf3b0d | 2011-07-20 19:50:42 +0000 | [diff] [blame] | 773 | |
| Bill Wendling | 2d1df6b | 2013-04-10 21:42:06 +0000 | [diff] [blame] | 774 | CompactUnwindDwarfEHFrameOnly = 0; |
| 775 | |
| Craig Topper | bb694de | 2014-04-13 04:57:38 +0000 | [diff] [blame] | 776 | EHFrameSection = nullptr; // Created on demand. |
| 777 | CompactUnwindSection = nullptr; // Used only by selected targets. |
| 778 | DwarfAccelNamesSection = nullptr; // Used only by selected targets. |
| 779 | DwarfAccelObjCSection = nullptr; // Used only by selected targets. |
| 780 | DwarfAccelNamespaceSection = nullptr; // Used only by selected targets. |
| 781 | DwarfAccelTypesSection = nullptr; // Used only by selected targets. |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 782 | |
| Daniel Sanders | 8d8b13d | 2015-06-16 12:18:07 +0000 | [diff] [blame] | 783 | TT = TheTriple; |
| Saleem Abdulrasool | bdbc008 | 2014-06-22 22:25:01 +0000 | [diff] [blame] | 784 | |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 785 | Triple::ArchType Arch = TT.getArch(); |
| 786 | // FIXME: Checking for Arch here to filter out bogus triples such as |
| 787 | // cellspu-apple-darwin. Perhaps we should fix in Triple? |
| 788 | if ((Arch == Triple::x86 || Arch == Triple::x86_64 || |
| 789 | Arch == Triple::arm || Arch == Triple::thumb || |
| 790 | Arch == Triple::aarch64 || |
| 791 | Arch == Triple::ppc || Arch == Triple::ppc64 || |
| 792 | Arch == Triple::UnknownArch) && |
| 793 | TT.isOSBinFormatMachO()) { |
| 794 | Env = IsMachO; |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 795 | initMachOMCObjectFileInfo(TT); |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 796 | } else if ((Arch == Triple::x86 || Arch == Triple::x86_64 || |
| 797 | Arch == Triple::arm || Arch == Triple::thumb) && |
| 798 | (TT.isOSWindows() && TT.getObjectFormat() == Triple::COFF)) { |
| 799 | Env = IsCOFF; |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 800 | initCOFFMCObjectFileInfo(TT); |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 801 | } else { |
| 802 | Env = IsELF; |
| Jim Grosbach | bb2591f | 2015-06-04 23:35:03 +0000 | [diff] [blame] | 803 | initELFMCObjectFileInfo(TT); |
| Evan Cheng | 7679299 | 2011-07-20 05:58:47 +0000 | [diff] [blame] | 804 | } |
| 805 | } |
| 806 | |
| Daniel Sanders | 8d8b13d | 2015-06-16 12:18:07 +0000 | [diff] [blame] | 807 | void MCObjectFileInfo::InitMCObjectFileInfo(StringRef TT, Reloc::Model RM, |
| 808 | CodeModel::Model CM, |
| 809 | MCContext &ctx) { |
| 810 | InitMCObjectFileInfo(Triple(TT), RM, CM, ctx); |
| 811 | } |
| 812 | |
| Rafael Espindola | 0709a7b | 2015-05-21 19:20:38 +0000 | [diff] [blame] | 813 | MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const { |
| David Blaikie | bc56327 | 2013-12-13 21:33:40 +0000 | [diff] [blame] | 814 | return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP, |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 815 | 0, utostr(Hash)); |
| David Blaikie | bc56327 | 2013-12-13 21:33:40 +0000 | [diff] [blame] | 816 | } |
| 817 | |
| David Chisnall | 85dd309 | 2012-02-17 16:51:02 +0000 | [diff] [blame] | 818 | void MCObjectFileInfo::InitEHFrameSection() { |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 819 | if (Env == IsMachO) |
| David Chisnall | 85dd309 | 2012-02-17 16:51:02 +0000 | [diff] [blame] | 820 | EHFrameSection = |
| 821 | Ctx->getMachOSection("__TEXT", "__eh_frame", |
| David Majnemer | 7b58305 | 2014-03-07 07:36:05 +0000 | [diff] [blame] | 822 | MachO::S_COALESCED | |
| 823 | MachO::S_ATTR_NO_TOC | |
| 824 | MachO::S_ATTR_STRIP_STATIC_SYMS | |
| 825 | MachO::S_ATTR_LIVE_SUPPORT, |
| David Chisnall | 85dd309 | 2012-02-17 16:51:02 +0000 | [diff] [blame] | 826 | SectionKind::getReadOnly()); |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 827 | else if (Env == IsELF) |
| David Chisnall | 85dd309 | 2012-02-17 16:51:02 +0000 | [diff] [blame] | 828 | EHFrameSection = |
| Rafael Espindola | ba31e27 | 2015-01-29 17:33:21 +0000 | [diff] [blame] | 829 | Ctx->getELFSection(".eh_frame", EHSectionType, EHSectionFlags); |
| Rafael Espindola | dbaf049 | 2015-08-14 15:48:41 +0000 | [diff] [blame] | 830 | else |
| David Chisnall | 85dd309 | 2012-02-17 16:51:02 +0000 | [diff] [blame] | 831 | EHFrameSection = |
| 832 | Ctx->getCOFFSection(".eh_frame", |
| 833 | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | |
| 834 | COFF::IMAGE_SCN_MEM_READ | |
| 835 | COFF::IMAGE_SCN_MEM_WRITE, |
| 836 | SectionKind::getDataRel()); |
| 837 | } |