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gerrit-public.fairphone.software / toolchain / llvm-project / e113b5e9afeda18d249aca75d473350b94fcda5f / . / llvm / lib / MC / MCObjectFileInfo.cpp
blob: 943eaef0386a6b5ef29c2ba1d2dfb1da54f88b87 [file] [log] [blame]
Evan Cheng76792992011-07-20 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 Blaikiebc563272013-12-13 21:33:40 +0000[diff] [blame]11#include "llvm/ADT/StringExtras.h"
Chandler Carruth8a8cd2b2014-01-07 11:48:04 +0000[diff] [blame]12#include "llvm/ADT/Triple.h"
Joerg Sonnenberger94cbb662014-05-13 17:58:13 +0000[diff] [blame]13#include "llvm/MC/MCAsmInfo.h"
Evan Cheng76792992011-07-20 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 Kleckner1f13d472015-09-03 16:41:50 +0000[diff] [blame]19#include "llvm/Support/COFF.h"
Hans Wennborg083ca9b2015-10-06 23:24:35 +0000[diff] [blame]20
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]21using namespace llvm;
22
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]23static bool useCompactUnwind(const Triple &T) {
24 // Only on darwin.
25 if (!T.isOSDarwin())
26 return false;
27
28 // aarch64 always has it.
Tim Northovere19bed72014-07-23 12:32:47 +0000[diff] [blame]29 if (T.getArch() == Triple::aarch64)
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]30 return true;
31
Tim Northoverf8e47e42015-10-28 22:56:36 +0000[diff] [blame]32 // armv7k always has it.
33 if (T.isWatchOS())
34 return true;
35
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]36 // Use it on newer version of OS X.
37 if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6))
38 return true;
39
Rafael Espindolac3510c72014-06-20 22:40:55 +0000[diff] [blame]40 // And the iOS simulator.
41 if (T.isiOS() &&
42 (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86))
43 return true;
44
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]45 return false;
46}
47
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]48void MCObjectFileInfo::initMachOMCObjectFileInfo(Triple T) {
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]49 // MachO
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]50 SupportsWeakOmittedEHFrame = false;
51
Rafael Espindola889d7bb2015-11-06 15:30:45 +0000[diff] [blame]52 EHFrameSection = Ctx->getMachOSection(
53 "__TEXT", "__eh_frame",
54 MachO::S_COALESCED | MachO::S_ATTR_NO_TOC |
55 MachO::S_ATTR_STRIP_STATIC_SYMS | MachO::S_ATTR_LIVE_SUPPORT,
56 SectionKind::getReadOnly());
57
Tim Northovere19bed72014-07-23 12:32:47 +0000[diff] [blame]58 if (T.isOSDarwin() && T.getArch() == Triple::aarch64)
Tim Northover00ed9962014-03-29 10:18:08 +0000[diff] [blame]59 SupportsCompactUnwindWithoutEHFrame = true;
60
Tim Northoverf8e47e42015-10-28 22:56:36 +0000[diff] [blame]61 if (T.isWatchOS())
62 OmitDwarfIfHaveCompactUnwind = true;
63
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]64 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel
65 | dwarf::DW_EH_PE_sdata4;
Rafael Espindolaaa7851d2014-05-12 13:47:05 +0000[diff] [blame]66 LSDAEncoding = FDECFIEncoding = dwarf::DW_EH_PE_pcrel;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]67 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
68 dwarf::DW_EH_PE_sdata4;
69
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]70 // .comm doesn't support alignment before Leopard.
71 if (T.isMacOSX() && T.isMacOSXVersionLT(10, 5))
72 CommDirectiveSupportsAlignment = false;
73
74 TextSection // .text
75 = Ctx->getMachOSection("__TEXT", "__text",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]76 MachO::S_ATTR_PURE_INSTRUCTIONS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]77 SectionKind::getText());
78 DataSection // .data
79 = Ctx->getMachOSection("__DATA", "__data", 0,
80 SectionKind::getDataRel());
81
NAKAMURA Takumi68fa6f92013-09-21 02:34:45 +0000[diff] [blame]82 // BSSSection might not be expected initialized on msvc.
Craig Topperbb694de2014-04-13 04:57:38 +0000[diff] [blame]83 BSSSection = nullptr;
NAKAMURA Takumi68fa6f92013-09-21 02:34:45 +0000[diff] [blame]84
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]85 TLSDataSection // .tdata
86 = Ctx->getMachOSection("__DATA", "__thread_data",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]87 MachO::S_THREAD_LOCAL_REGULAR,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]88 SectionKind::getDataRel());
89 TLSBSSSection // .tbss
90 = Ctx->getMachOSection("__DATA", "__thread_bss",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]91 MachO::S_THREAD_LOCAL_ZEROFILL,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]92 SectionKind::getThreadBSS());
93
94 // TODO: Verify datarel below.
95 TLSTLVSection // .tlv
96 = Ctx->getMachOSection("__DATA", "__thread_vars",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]97 MachO::S_THREAD_LOCAL_VARIABLES,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]98 SectionKind::getDataRel());
99
100 TLSThreadInitSection
101 = Ctx->getMachOSection("__DATA", "__thread_init",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]102 MachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
Jim Grosbach0dde3492011-11-15 16:46:22 +0000[diff] [blame]103 SectionKind::getDataRel());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]104
105 CStringSection // .cstring
106 = Ctx->getMachOSection("__TEXT", "__cstring",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]107 MachO::S_CSTRING_LITERALS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]108 SectionKind::getMergeable1ByteCString());
109 UStringSection
110 = Ctx->getMachOSection("__TEXT","__ustring", 0,
111 SectionKind::getMergeable2ByteCString());
112 FourByteConstantSection // .literal4
113 = Ctx->getMachOSection("__TEXT", "__literal4",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]114 MachO::S_4BYTE_LITERALS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]115 SectionKind::getMergeableConst4());
116 EightByteConstantSection // .literal8
117 = Ctx->getMachOSection("__TEXT", "__literal8",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]118 MachO::S_8BYTE_LITERALS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]119 SectionKind::getMergeableConst8());
120
Rafael Espindola1f3de492014-02-13 23:16:11 +0000[diff] [blame]121 SixteenByteConstantSection // .literal16
122 = Ctx->getMachOSection("__TEXT", "__literal16",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]123 MachO::S_16BYTE_LITERALS,
Rafael Espindola1f3de492014-02-13 23:16:11 +0000[diff] [blame]124 SectionKind::getMergeableConst16());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]125
126 ReadOnlySection // .const
127 = Ctx->getMachOSection("__TEXT", "__const", 0,
128 SectionKind::getReadOnly());
129
Akira Hatanaka8ad73992015-10-15 05:28:38 +0000[diff] [blame]130 // If the target is not powerpc, map the coal sections to the non-coal
131 // sections.
132 //
133 // "__TEXT/__textcoal_nt" => section "__TEXT/__text"
134 // "__TEXT/__const_coal" => section "__TEXT/__const"
135 // "__DATA/__datacoal_nt" => section "__DATA/__data"
136 Triple::ArchType ArchTy = T.getArch();
137
138 if (ArchTy == Triple::ppc || ArchTy == Triple::ppc64) {
139 TextCoalSection
140 = Ctx->getMachOSection("__TEXT", "__textcoal_nt",
141 MachO::S_COALESCED |
142 MachO::S_ATTR_PURE_INSTRUCTIONS,
143 SectionKind::getText());
144 ConstTextCoalSection
145 = Ctx->getMachOSection("__TEXT", "__const_coal",
146 MachO::S_COALESCED,
147 SectionKind::getReadOnly());
148 DataCoalSection
149 = Ctx->getMachOSection("__DATA","__datacoal_nt",
150 MachO::S_COALESCED,
151 SectionKind::getDataRel());
152 } else {
153 TextCoalSection = TextSection;
154 ConstTextCoalSection = ReadOnlySection;
155 DataCoalSection = DataSection;
156 }
157
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]158 ConstDataSection // .const_data
159 = Ctx->getMachOSection("__DATA", "__const", 0,
160 SectionKind::getReadOnlyWithRel());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]161 DataCommonSection
162 = Ctx->getMachOSection("__DATA","__common",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]163 MachO::S_ZEROFILL,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]164 SectionKind::getBSS());
165 DataBSSSection
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]166 = Ctx->getMachOSection("__DATA","__bss", MachO::S_ZEROFILL,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]167 SectionKind::getBSS());
168
169
170 LazySymbolPointerSection
171 = Ctx->getMachOSection("__DATA", "__la_symbol_ptr",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]172 MachO::S_LAZY_SYMBOL_POINTERS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]173 SectionKind::getMetadata());
174 NonLazySymbolPointerSection
175 = Ctx->getMachOSection("__DATA", "__nl_symbol_ptr",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]176 MachO::S_NON_LAZY_SYMBOL_POINTERS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]177 SectionKind::getMetadata());
178
179 if (RelocM == Reloc::Static) {
180 StaticCtorSection
181 = Ctx->getMachOSection("__TEXT", "__constructor", 0,
182 SectionKind::getDataRel());
183 StaticDtorSection
184 = Ctx->getMachOSection("__TEXT", "__destructor", 0,
185 SectionKind::getDataRel());
186 } else {
187 StaticCtorSection
188 = Ctx->getMachOSection("__DATA", "__mod_init_func",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]189 MachO::S_MOD_INIT_FUNC_POINTERS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]190 SectionKind::getDataRel());
191 StaticDtorSection
192 = Ctx->getMachOSection("__DATA", "__mod_term_func",
David Majnemer7b583052014-03-07 07:36:05 +0000[diff] [blame]193 MachO::S_MOD_TERM_FUNC_POINTERS,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]194 SectionKind::getDataRel());
195 }
196
197 // Exception Handling.
198 LSDASection = Ctx->getMachOSection("__TEXT", "__gcc_except_tab", 0,
199 SectionKind::getReadOnlyWithRel());
200
Craig Topperbb694de2014-04-13 04:57:38 +0000[diff] [blame]201 COFFDebugSymbolsSection = nullptr;
Timur Iskhodzhanovf166f6c2014-01-30 01:39:17 +0000[diff] [blame]202
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]203 if (useCompactUnwind(T)) {
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]204 CompactUnwindSection =
Rafael Espindolabecdf632014-06-20 22:37:01 +0000[diff] [blame]205 Ctx->getMachOSection("__LD", "__compact_unwind", MachO::S_ATTR_DEBUG,
206 SectionKind::getReadOnly());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]207
Bill Wendling2d1df6b2013-04-10 21:42:06 +0000[diff] [blame]208 if (T.getArch() == Triple::x86_64 || T.getArch() == Triple::x86)
Tim Northoverf8e47e42015-10-28 22:56:36 +0000[diff] [blame]209 CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_X86_64_MODE_DWARF
Tim Northovere19bed72014-07-23 12:32:47 +0000[diff] [blame]210 else if (T.getArch() == Triple::aarch64)
Tim Northoverf8e47e42015-10-28 22:56:36 +0000[diff] [blame]211 CompactUnwindDwarfEHFrameOnly = 0x03000000; // UNWIND_ARM64_MODE_DWARF
212 else if (T.getArch() == Triple::arm || T.getArch() == Triple::thumb)
213 CompactUnwindDwarfEHFrameOnly = 0x04000000; // UNWIND_ARM_MODE_DWARF
Bill Wendling2d1df6b2013-04-10 21:42:06 +0000[diff] [blame]214 }
215
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]216 // Debug Information.
Eric Christopher4996c702011-11-07 09:24:32 +0000[diff] [blame]217 DwarfAccelNamesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]218 Ctx->getMachOSection("__DWARF", "__apple_names", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]219 SectionKind::getMetadata(), "names_begin");
Eric Christopher4996c702011-11-07 09:24:32 +0000[diff] [blame]220 DwarfAccelObjCSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]221 Ctx->getMachOSection("__DWARF", "__apple_objc", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]222 SectionKind::getMetadata(), "objc_begin");
Eric Christopher4996c702011-11-07 09:24:32 +0000[diff] [blame]223 // 16 character section limit...
224 DwarfAccelNamespaceSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]225 Ctx->getMachOSection("__DWARF", "__apple_namespac", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]226 SectionKind::getMetadata(), "namespac_begin");
Eric Christopher4996c702011-11-07 09:24:32 +0000[diff] [blame]227 DwarfAccelTypesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]228 Ctx->getMachOSection("__DWARF", "__apple_types", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]229 SectionKind::getMetadata(), "types_begin");
Jim Grosbachdc1e36e2012-05-11 01:41:30 +0000[diff] [blame]230
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]231 DwarfAbbrevSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]232 Ctx->getMachOSection("__DWARF", "__debug_abbrev", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]233 SectionKind::getMetadata(), "section_abbrev");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]234 DwarfInfoSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]235 Ctx->getMachOSection("__DWARF", "__debug_info", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]236 SectionKind::getMetadata(), "section_info");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]237 DwarfLineSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]238 Ctx->getMachOSection("__DWARF", "__debug_line", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]239 SectionKind::getMetadata(), "section_line");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]240 DwarfFrameSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]241 Ctx->getMachOSection("__DWARF", "__debug_frame", MachO::S_ATTR_DEBUG,
242 SectionKind::getMetadata());
Krzysztof Parzyszek228daa62013-02-12 18:00:14 +0000[diff] [blame]243 DwarfPubNamesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]244 Ctx->getMachOSection("__DWARF", "__debug_pubnames", MachO::S_ATTR_DEBUG,
245 SectionKind::getMetadata());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]246 DwarfPubTypesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]247 Ctx->getMachOSection("__DWARF", "__debug_pubtypes", MachO::S_ATTR_DEBUG,
248 SectionKind::getMetadata());
Eric Christopherb0e76942013-09-09 20:03:14 +0000[diff] [blame]249 DwarfGnuPubNamesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]250 Ctx->getMachOSection("__DWARF", "__debug_gnu_pubn", MachO::S_ATTR_DEBUG,
251 SectionKind::getMetadata());
Eric Christopherb0e76942013-09-09 20:03:14 +0000[diff] [blame]252 DwarfGnuPubTypesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]253 Ctx->getMachOSection("__DWARF", "__debug_gnu_pubt", MachO::S_ATTR_DEBUG,
254 SectionKind::getMetadata());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]255 DwarfStrSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]256 Ctx->getMachOSection("__DWARF", "__debug_str", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]257 SectionKind::getMetadata(), "info_string");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]258 DwarfLocSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]259 Ctx->getMachOSection("__DWARF", "__debug_loc", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]260 SectionKind::getMetadata(), "section_debug_loc");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]261 DwarfARangesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]262 Ctx->getMachOSection("__DWARF", "__debug_aranges", MachO::S_ATTR_DEBUG,
263 SectionKind::getMetadata());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]264 DwarfRangesSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]265 Ctx->getMachOSection("__DWARF", "__debug_ranges", MachO::S_ATTR_DEBUG,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]266 SectionKind::getMetadata(), "debug_range");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]267 DwarfDebugInlineSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]268 Ctx->getMachOSection("__DWARF", "__debug_inlined", MachO::S_ATTR_DEBUG,
269 SectionKind::getMetadata());
270 StackMapSection = Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps",
271 0, SectionKind::getMetadata());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]272
Sanjoy Dasc63244d2015-06-15 18:44:08 +0000[diff] [blame]273 FaultMapSection = Ctx->getMachOSection("__LLVM_FAULTMAPS", "__llvm_faultmaps",
274 0, SectionKind::getMetadata());
275
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]276 TLSExtraDataSection = TLSTLVSection;
277}
278
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]279void MCObjectFileInfo::initELFMCObjectFileInfo(Triple T) {
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]280 switch (T.getArch()) {
281 case Triple::mips:
282 case Triple::mipsel:
Rafael Espindolab9b7ae02013-04-03 03:13:19 +0000[diff] [blame]283 FDECFIEncoding = dwarf::DW_EH_PE_sdata4;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]284 break;
285 case Triple::mips64:
286 case Triple::mips64el:
Rafael Espindolab9b7ae02013-04-03 03:13:19 +0000[diff] [blame]287 FDECFIEncoding = dwarf::DW_EH_PE_sdata8;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]288 break;
Rafael Espindolad11591b2014-11-27 17:13:56 +0000[diff] [blame]289 case Triple::x86_64:
290 FDECFIEncoding = dwarf::DW_EH_PE_pcrel |
291 ((CMModel == CodeModel::Large) ? dwarf::DW_EH_PE_sdata8
292 : dwarf::DW_EH_PE_sdata4);
Rafael Espindolad11591b2014-11-27 17:13:56 +0000[diff] [blame]293 break;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]294 default:
Rafael Espindolaef9d3492013-03-15 05:51:57 +0000[diff] [blame]295 FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]296 break;
297 }
Rafael Espindolaef9d3492013-03-15 05:51:57 +0000[diff] [blame]298
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]299 switch (T.getArch()) {
Joerg Sonnenbergercf86ce12014-05-07 07:49:34 +0000[diff] [blame]300 case Triple::arm:
301 case Triple::armeb:
302 case Triple::thumb:
303 case Triple::thumbeb:
Joerg Sonnenberger94cbb662014-05-13 17:58:13 +0000[diff] [blame]304 if (Ctx->getAsmInfo()->getExceptionHandlingType() == ExceptionHandling::ARM)
305 break;
306 // Fallthrough if not using EHABI
Joerg Sonnenberger6637d4e2014-07-24 19:25:16 +0000[diff] [blame]307 case Triple::ppc:
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]308 case Triple::x86:
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]309 PersonalityEncoding = (RelocM == Reloc::PIC_)
Jim Grosbach0dde3492011-11-15 16:46:22 +0000[diff] [blame]310 ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
311 : dwarf::DW_EH_PE_absptr;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]312 LSDAEncoding = (RelocM == Reloc::PIC_)
313 ? dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
314 : dwarf::DW_EH_PE_absptr;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]315 TTypeEncoding = (RelocM == Reloc::PIC_)
Jim Grosbach0dde3492011-11-15 16:46:22 +0000[diff] [blame]316 ? dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4
317 : dwarf::DW_EH_PE_absptr;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]318 break;
319 case Triple::x86_64:
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]320 if (RelocM == Reloc::PIC_) {
321 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
322 ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium)
323 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8);
324 LSDAEncoding = dwarf::DW_EH_PE_pcrel |
325 (CMModel == CodeModel::Small
326 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8);
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]327 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
328 ((CMModel == CodeModel::Small || CMModel == CodeModel::Medium)
329 ? dwarf::DW_EH_PE_sdata4 : dwarf::DW_EH_PE_sdata8);
330 } else {
331 PersonalityEncoding =
332 (CMModel == CodeModel::Small || CMModel == CodeModel::Medium)
333 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr;
334 LSDAEncoding = (CMModel == CodeModel::Small)
335 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]336 TTypeEncoding = (CMModel == CodeModel::Small)
337 ? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr;
338 }
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]339 break;
340 case Triple::aarch64:
341 case Triple::aarch64_be:
Tim Northovere0e3aef2013-01-31 12:12:40 +0000[diff] [blame]342 // The small model guarantees static code/data size < 4GB, but not where it
343 // will be in memory. Most of these could end up >2GB away so even a signed
344 // pc-relative 32-bit address is insufficient, theoretically.
345 if (RelocM == Reloc::PIC_) {
346 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
347 dwarf::DW_EH_PE_sdata8;
348 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8;
Tim Northovere0e3aef2013-01-31 12:12:40 +0000[diff] [blame]349 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
350 dwarf::DW_EH_PE_sdata8;
351 } else {
352 PersonalityEncoding = dwarf::DW_EH_PE_absptr;
353 LSDAEncoding = dwarf::DW_EH_PE_absptr;
Tim Northovere0e3aef2013-01-31 12:12:40 +0000[diff] [blame]354 TTypeEncoding = dwarf::DW_EH_PE_absptr;
355 }
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]356 break;
Logan Chienc0029812014-05-30 16:48:56 +0000[diff] [blame]357 case Triple::mips:
358 case Triple::mipsel:
Petar Jovanovic35f05742014-11-05 22:42:31 +0000[diff] [blame]359 case Triple::mips64:
360 case Triple::mips64el:
Daniel Sandersc95f3f82015-06-02 20:32:50 +0000[diff] [blame]361 // MIPS uses indirect pointer to refer personality functions and types, so
362 // that the eh_frame section can be read-only. DW.ref.personality will be
363 // generated for relocation.
Logan Chienc0029812014-05-30 16:48:56 +0000[diff] [blame]364 PersonalityEncoding = dwarf::DW_EH_PE_indirect;
Daniel Sandersc95f3f82015-06-02 20:32:50 +0000[diff] [blame]365 // FIXME: The N64 ABI probably ought to use DW_EH_PE_sdata8 but we can't
366 // identify N64 from just a triple.
367 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
368 dwarf::DW_EH_PE_sdata4;
369 // We don't support PC-relative LSDA references in GAS so we use the default
370 // DW_EH_PE_absptr for those.
Logan Chienc0029812014-05-30 16:48:56 +0000[diff] [blame]371 break;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]372 case Triple::ppc64:
373 case Triple::ppc64le:
Adhemerval Zanella1ae22482013-01-09 17:08:15 +0000[diff] [blame]374 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
375 dwarf::DW_EH_PE_udata8;
Adhemerval Zanella1ae22482013-01-09 17:08:15 +0000[diff] [blame]376 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8;
Adhemerval Zanella1ae22482013-01-09 17:08:15 +0000[diff] [blame]377 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
378 dwarf::DW_EH_PE_udata8;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]379 break;
Douglas Katzman9160e782015-04-29 20:30:57 +0000[diff] [blame]380 case Triple::sparcel:
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]381 case Triple::sparc:
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]382 if (RelocM == Reloc::PIC_) {
383 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
384 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
385 dwarf::DW_EH_PE_sdata4;
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]386 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
387 dwarf::DW_EH_PE_sdata4;
388 } else {
389 LSDAEncoding = dwarf::DW_EH_PE_absptr;
390 PersonalityEncoding = dwarf::DW_EH_PE_absptr;
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]391 TTypeEncoding = dwarf::DW_EH_PE_absptr;
392 }
Joerg Sonnenbergerfa9cf652014-04-30 23:36:24 +0000[diff] [blame]393 break;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]394 case Triple::sparcv9:
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]395 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
396 if (RelocM == Reloc::PIC_) {
397 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
398 dwarf::DW_EH_PE_sdata4;
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]399 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
400 dwarf::DW_EH_PE_sdata4;
401 } else {
402 PersonalityEncoding = dwarf::DW_EH_PE_absptr;
Jakob Stoklund Olesen83c67732014-01-28 02:52:26 +0000[diff] [blame]403 TTypeEncoding = dwarf::DW_EH_PE_absptr;
404 }
Joerg Sonnenbergerfa9cf652014-04-30 23:36:24 +0000[diff] [blame]405 break;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]406 case Triple::systemz:
Ulrich Weigand0213e7f2013-05-06 16:11:12 +0000[diff] [blame]407 // All currently-defined code models guarantee that 4-byte PC-relative
408 // values will be in range.
Ulrich Weigande7c6dfe2013-05-06 17:28:30 +0000[diff] [blame]409 if (RelocM == Reloc::PIC_) {
410 PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
411 dwarf::DW_EH_PE_sdata4;
412 LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
Ulrich Weigande7c6dfe2013-05-06 17:28:30 +0000[diff] [blame]413 TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
414 dwarf::DW_EH_PE_sdata4;
415 } else {
416 PersonalityEncoding = dwarf::DW_EH_PE_absptr;
417 LSDAEncoding = dwarf::DW_EH_PE_absptr;
Ulrich Weigande7c6dfe2013-05-06 17:28:30 +0000[diff] [blame]418 TTypeEncoding = dwarf::DW_EH_PE_absptr;
419 }
Joerg Sonnenbergerfa9cf652014-04-30 23:36:24 +0000[diff] [blame]420 break;
Joerg Sonnenberger7c442522014-04-30 23:23:14 +0000[diff] [blame]421 default:
422 break;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]423 }
424
Rafael Espindola889d7bb2015-11-06 15:30:45 +0000[diff] [blame]425 unsigned EHSectionType = T.getArch() == Triple::x86_64
426 ? ELF::SHT_X86_64_UNWIND
427 : ELF::SHT_PROGBITS;
Rafael Espindolab20b7062015-11-06 13:35:35 +0000[diff] [blame]428
David Chisnall07f8d3e2012-02-17 17:31:15 +0000[diff] [blame]429 // Solaris requires different flags for .eh_frame to seemingly every other
430 // platform.
Rafael Espindola889d7bb2015-11-06 15:30:45 +0000[diff] [blame]431 unsigned EHSectionFlags = ELF::SHF_ALLOC;
Rafael Espindolab20b7062015-11-06 13:35:35 +0000[diff] [blame]432 if (T.isOSSolaris() && T.getArch() != Triple::x86_64)
433 EHSectionFlags |= ELF::SHF_WRITE;
David Chisnall07f8d3e2012-02-17 17:31:15 +0000[diff] [blame]434
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]435 // ELF
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]436 BSSSection = Ctx->getELFSection(".bss", ELF::SHT_NOBITS,
437 ELF::SHF_WRITE | ELF::SHF_ALLOC);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]438
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]439 TextSection = Ctx->getELFSection(".text", ELF::SHT_PROGBITS,
440 ELF::SHF_EXECINSTR | ELF::SHF_ALLOC);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]441
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]442 DataSection = Ctx->getELFSection(".data", ELF::SHT_PROGBITS,
443 ELF::SHF_WRITE | ELF::SHF_ALLOC);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]444
445 ReadOnlySection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]446 Ctx->getELFSection(".rodata", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]447
448 TLSDataSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]449 Ctx->getELFSection(".tdata", ELF::SHT_PROGBITS,
450 ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]451
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]452 TLSBSSSection = Ctx->getELFSection(
453 ".tbss", ELF::SHT_NOBITS, ELF::SHF_ALLOC | ELF::SHF_TLS | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]454
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]455 DataRelSection = Ctx->getELFSection(".data.rel", ELF::SHT_PROGBITS,
456 ELF::SHF_ALLOC | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]457
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]458 DataRelROSection = Ctx->getELFSection(".data.rel.ro", ELF::SHT_PROGBITS,
459 ELF::SHF_ALLOC | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]460
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]461 MergeableConst4Section =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]462 Ctx->getELFSection(".rodata.cst4", ELF::SHT_PROGBITS,
463 ELF::SHF_ALLOC | ELF::SHF_MERGE, 4, "");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]464
465 MergeableConst8Section =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]466 Ctx->getELFSection(".rodata.cst8", ELF::SHT_PROGBITS,
467 ELF::SHF_ALLOC | ELF::SHF_MERGE, 8, "");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]468
469 MergeableConst16Section =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]470 Ctx->getELFSection(".rodata.cst16", ELF::SHT_PROGBITS,
471 ELF::SHF_ALLOC | ELF::SHF_MERGE, 16, "");
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]472
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]473 StaticCtorSection = Ctx->getELFSection(".ctors", ELF::SHT_PROGBITS,
474 ELF::SHF_ALLOC | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]475
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]476 StaticDtorSection = Ctx->getELFSection(".dtors", ELF::SHT_PROGBITS,
477 ELF::SHF_ALLOC | ELF::SHF_WRITE);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]478
479 // Exception Handling Sections.
480
481 // FIXME: We're emitting LSDA info into a readonly section on ELF, even though
482 // it contains relocatable pointers. In PIC mode, this is probably a big
483 // runtime hit for C++ apps. Either the contents of the LSDA need to be
484 // adjusted or this should be a data section.
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]485 LSDASection = Ctx->getELFSection(".gcc_except_table", ELF::SHT_PROGBITS,
486 ELF::SHF_ALLOC);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]487
Craig Topperbb694de2014-04-13 04:57:38 +0000[diff] [blame]488 COFFDebugSymbolsSection = nullptr;
Timur Iskhodzhanovf166f6c2014-01-30 01:39:17 +0000[diff] [blame]489
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]490 // Debug Info Sections.
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]491 DwarfAbbrevSection = Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0,
492 "section_abbrev");
493 DwarfInfoSection =
494 Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0, "section_info");
Rafael Espindola23562fc2015-03-11 04:20:31 +0000[diff] [blame]495 DwarfLineSection = Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0);
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]496 DwarfFrameSection = Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0);
Krzysztof Parzyszek228daa62013-02-12 18:00:14 +0000[diff] [blame]497 DwarfPubNamesSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]498 Ctx->getELFSection(".debug_pubnames", ELF::SHT_PROGBITS, 0);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]499 DwarfPubTypesSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]500 Ctx->getELFSection(".debug_pubtypes", ELF::SHT_PROGBITS, 0);
Eric Christopherb0e76942013-09-09 20:03:14 +0000[diff] [blame]501 DwarfGnuPubNamesSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]502 Ctx->getELFSection(".debug_gnu_pubnames", ELF::SHT_PROGBITS, 0);
Eric Christopherb0e76942013-09-09 20:03:14 +0000[diff] [blame]503 DwarfGnuPubTypesSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]504 Ctx->getELFSection(".debug_gnu_pubtypes", ELF::SHT_PROGBITS, 0);
Rafael Espindola23562fc2015-03-11 04:20:31 +0000[diff] [blame]505 DwarfStrSection =
506 Ctx->getELFSection(".debug_str", ELF::SHT_PROGBITS,
507 ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, "");
508 DwarfLocSection = Ctx->getELFSection(".debug_loc", ELF::SHT_PROGBITS, 0);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]509 DwarfARangesSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]510 Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]511 DwarfRangesSection =
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]512 Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0, "debug_range");
Eric Christopher27ed8ec2012-11-28 02:49:34 +0000[diff] [blame]513
514 // DWARF5 Experimental Debug Info
515
516 // Accelerator Tables
Eric Christophera0ad67d2012-10-08 21:41:30 +0000[diff] [blame]517 DwarfAccelNamesSection =
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]518 Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0, "names_begin");
Eric Christophera0ad67d2012-10-08 21:41:30 +0000[diff] [blame]519 DwarfAccelObjCSection =
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]520 Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0, "objc_begin");
521 DwarfAccelNamespaceSection = Ctx->getELFSection(
522 ".apple_namespaces", ELF::SHT_PROGBITS, 0, "namespac_begin");
Eric Christophera0ad67d2012-10-08 21:41:30 +0000[diff] [blame]523 DwarfAccelTypesSection =
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]524 Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0, "types_begin");
Eric Christopherc3b434b2012-11-28 02:49:38 +0000[diff] [blame]525
526 // Fission Sections
Rafael Espindola23562fc2015-03-11 04:20:31 +0000[diff] [blame]527 DwarfInfoDWOSection =
528 Ctx->getELFSection(".debug_info.dwo", ELF::SHT_PROGBITS, 0);
529 DwarfTypesDWOSection =
530 Ctx->getELFSection(".debug_types.dwo", ELF::SHT_PROGBITS, 0);
531 DwarfAbbrevDWOSection =
532 Ctx->getELFSection(".debug_abbrev.dwo", ELF::SHT_PROGBITS, 0);
533 DwarfStrDWOSection =
534 Ctx->getELFSection(".debug_str.dwo", ELF::SHT_PROGBITS,
535 ELF::SHF_MERGE | ELF::SHF_STRINGS, 1, "");
Eric Christopher3c230092012-11-30 06:47:06 +0000[diff] [blame]536 DwarfLineDWOSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]537 Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0);
Eric Christopher3c230092012-11-30 06:47:06 +0000[diff] [blame]538 DwarfLocDWOSection =
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]539 Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0, "skel_loc");
Eric Christopherc0fa8672013-01-04 17:59:22 +0000[diff] [blame]540 DwarfStrOffDWOSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]541 Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0);
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]542 DwarfAddrSection =
543 Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0, "addr_sec");
Philip Reames76846182014-08-01 18:47:09 +0000[diff] [blame]544
545 StackMapSection =
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]546 Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
Sanjoy Dasc63244d2015-06-15 18:44:08 +0000[diff] [blame]547
548 FaultMapSection =
549 Ctx->getELFSection(".llvm_faultmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
Rafael Espindola889d7bb2015-11-06 15:30:45 +0000[diff] [blame]550
551 EHFrameSection =
552 Ctx->getELFSection(".eh_frame", EHSectionType, EHSectionFlags);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]553}
554
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]555void MCObjectFileInfo::initCOFFMCObjectFileInfo(Triple T) {
Rafael Espindola889d7bb2015-11-06 15:30:45 +0000[diff] [blame]556 EHFrameSection = Ctx->getCOFFSection(
557 ".eh_frame", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
558 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
559 SectionKind::getDataRel());
560
Saleem Abdulrasool70a02062014-06-08 03:57:49 +0000[diff] [blame]561 bool IsWoA = T.getArch() == Triple::arm || T.getArch() == Triple::thumb;
562
David Majnemer48227a32014-09-21 09:18:07 +0000[diff] [blame]563 CommDirectiveSupportsAlignment = true;
David Majnemera9bdb322014-04-08 22:33:40 +0000[diff] [blame]564
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]565 // COFF
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]566 BSSSection = Ctx->getCOFFSection(
567 ".bss", COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
568 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
569 SectionKind::getBSS());
570 TextSection = Ctx->getCOFFSection(
571 ".text",
572 (IsWoA ? COFF::IMAGE_SCN_MEM_16BIT : (COFF::SectionCharacteristics)0) |
573 COFF::IMAGE_SCN_CNT_CODE | COFF::IMAGE_SCN_MEM_EXECUTE |
574 COFF::IMAGE_SCN_MEM_READ,
575 SectionKind::getText());
576 DataSection = Ctx->getCOFFSection(
577 ".data", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ |
578 COFF::IMAGE_SCN_MEM_WRITE,
579 SectionKind::getDataRel());
580 ReadOnlySection = Ctx->getCOFFSection(
581 ".rdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
582 SectionKind::getReadOnly());
Saleem Abdulrasoola35f04a2014-06-08 00:34:23 +0000[diff] [blame]583
Saleem Abdulrasooled7fc4b2014-06-08 00:34:27 +0000[diff] [blame]584 if (T.isKnownWindowsMSVCEnvironment() || T.isWindowsItaniumEnvironment()) {
Michael J. Spencerb560d072012-02-23 21:56:08 +0000[diff] [blame]585 StaticCtorSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]586 Ctx->getCOFFSection(".CRT$XCU", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
587 COFF::IMAGE_SCN_MEM_READ,
588 SectionKind::getReadOnly());
Saleem Abdulrasoola35f04a2014-06-08 00:34:23 +0000[diff] [blame]589 StaticDtorSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]590 Ctx->getCOFFSection(".CRT$XTX", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
591 COFF::IMAGE_SCN_MEM_READ,
592 SectionKind::getReadOnly());
Michael J. Spencerb560d072012-02-23 21:56:08 +0000[diff] [blame]593 } else {
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]594 StaticCtorSection = Ctx->getCOFFSection(
595 ".ctors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
596 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
597 SectionKind::getDataRel());
598 StaticDtorSection = Ctx->getCOFFSection(
599 ".dtors", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
600 COFF::IMAGE_SCN_MEM_READ | COFF::IMAGE_SCN_MEM_WRITE,
601 SectionKind::getDataRel());
Anton Korobeynikov37d73002012-09-23 15:53:47 +0000[diff] [blame]602 }
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]603
604 // FIXME: We're emitting LSDA info into a readonly section on COFF, even
605 // though it contains relocatable pointers. In PIC mode, this is probably a
606 // big runtime hit for C++ apps. Either the contents of the LSDA need to be
607 // adjusted or this should be a data section.
NAKAMURA Takumi1db59952014-06-25 12:41:52 +0000[diff] [blame]608 assert(T.isOSWindows() && "Windows is the only supported COFF target");
609 if (T.getArch() == Triple::x86_64) {
610 // On Windows 64 with SEH, the LSDA is emitted into the .xdata section
Hans Wennborg083ca9b2015-10-06 23:24:35 +0000[diff] [blame]611 LSDASection = nullptr;
NAKAMURA Takumi1db59952014-06-25 12:41:52 +0000[diff] [blame]612 } else {
613 LSDASection = Ctx->getCOFFSection(".gcc_except_table",
614 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
615 COFF::IMAGE_SCN_MEM_READ,
616 SectionKind::getReadOnly());
617 }
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]618
619 // Debug info.
Timur Iskhodzhanov31377c52014-01-28 03:48:44 +0000[diff] [blame]620 COFFDebugSymbolsSection =
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]621 Ctx->getCOFFSection(".debug$S", COFF::IMAGE_SCN_MEM_DISCARDABLE |
622 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
623 COFF::IMAGE_SCN_MEM_READ,
624 SectionKind::getMetadata());
Timur Iskhodzhanov31377c52014-01-28 03:48:44 +0000[diff] [blame]625
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]626 DwarfAbbrevSection = Ctx->getCOFFSection(
627 ".debug_abbrev",
628 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
629 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]630 SectionKind::getMetadata(), "section_abbrev");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]631 DwarfInfoSection = Ctx->getCOFFSection(
632 ".debug_info",
633 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
634 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]635 SectionKind::getMetadata(), "section_info");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]636 DwarfLineSection = Ctx->getCOFFSection(
637 ".debug_line",
638 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
639 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]640 SectionKind::getMetadata(), "section_line");
641
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]642 DwarfFrameSection = Ctx->getCOFFSection(
643 ".debug_frame",
644 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
645 COFF::IMAGE_SCN_MEM_READ,
646 SectionKind::getMetadata());
647 DwarfPubNamesSection = Ctx->getCOFFSection(
648 ".debug_pubnames",
649 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
650 COFF::IMAGE_SCN_MEM_READ,
651 SectionKind::getMetadata());
652 DwarfPubTypesSection = Ctx->getCOFFSection(
653 ".debug_pubtypes",
654 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
655 COFF::IMAGE_SCN_MEM_READ,
656 SectionKind::getMetadata());
657 DwarfGnuPubNamesSection = Ctx->getCOFFSection(
658 ".debug_gnu_pubnames",
659 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
660 COFF::IMAGE_SCN_MEM_READ,
661 SectionKind::getMetadata());
662 DwarfGnuPubTypesSection = Ctx->getCOFFSection(
663 ".debug_gnu_pubtypes",
664 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
665 COFF::IMAGE_SCN_MEM_READ,
666 SectionKind::getMetadata());
667 DwarfStrSection = Ctx->getCOFFSection(
668 ".debug_str",
669 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
670 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]671 SectionKind::getMetadata(), "info_string");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]672 DwarfLocSection = Ctx->getCOFFSection(
673 ".debug_loc",
674 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
675 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]676 SectionKind::getMetadata(), "section_debug_loc");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]677 DwarfARangesSection = Ctx->getCOFFSection(
678 ".debug_aranges",
679 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
680 COFF::IMAGE_SCN_MEM_READ,
681 SectionKind::getMetadata());
682 DwarfRangesSection = Ctx->getCOFFSection(
683 ".debug_ranges",
684 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
685 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]686 SectionKind::getMetadata(), "debug_range");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]687 DwarfInfoDWOSection = Ctx->getCOFFSection(
688 ".debug_info.dwo",
689 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
690 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]691 SectionKind::getMetadata(), "section_info_dwo");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]692 DwarfTypesDWOSection = Ctx->getCOFFSection(
693 ".debug_types.dwo",
694 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
695 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindolab03bc792015-03-10 23:06:32 +0000[diff] [blame]696 SectionKind::getMetadata(), "section_types_dwo");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]697 DwarfAbbrevDWOSection = Ctx->getCOFFSection(
698 ".debug_abbrev.dwo",
699 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
700 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]701 SectionKind::getMetadata(), "section_abbrev_dwo");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]702 DwarfStrDWOSection = Ctx->getCOFFSection(
703 ".debug_str.dwo",
704 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
705 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]706 SectionKind::getMetadata(), "skel_string");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]707 DwarfLineDWOSection = Ctx->getCOFFSection(
708 ".debug_line.dwo",
709 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
710 COFF::IMAGE_SCN_MEM_READ,
711 SectionKind::getMetadata());
712 DwarfLocDWOSection = Ctx->getCOFFSection(
713 ".debug_loc.dwo",
714 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
715 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]716 SectionKind::getMetadata(), "skel_loc");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]717 DwarfStrOffDWOSection = Ctx->getCOFFSection(
718 ".debug_str_offsets.dwo",
719 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
720 COFF::IMAGE_SCN_MEM_READ,
721 SectionKind::getMetadata());
722 DwarfAddrSection = Ctx->getCOFFSection(
723 ".debug_addr",
724 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
725 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]726 SectionKind::getMetadata(), "addr_sec");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]727 DwarfAccelNamesSection = Ctx->getCOFFSection(
728 ".apple_names",
729 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
730 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]731 SectionKind::getMetadata(), "names_begin");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]732 DwarfAccelNamespaceSection = Ctx->getCOFFSection(
733 ".apple_namespaces",
734 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
735 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]736 SectionKind::getMetadata(), "namespac_begin");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]737 DwarfAccelTypesSection = Ctx->getCOFFSection(
738 ".apple_types",
739 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
740 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]741 SectionKind::getMetadata(), "types_begin");
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]742 DwarfAccelObjCSection = Ctx->getCOFFSection(
743 ".apple_objc",
744 COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
745 COFF::IMAGE_SCN_MEM_READ,
Rafael Espindola6b9998b2015-03-10 22:00:25 +0000[diff] [blame]746 SectionKind::getMetadata(), "objc_begin");
Frederic Riss3f1a0a72014-11-14 20:33:40 +0000[diff] [blame]747
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]748 DrectveSection = Ctx->getCOFFSection(
749 ".drectve", COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE,
750 SectionKind::getMetadata());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]751
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]752 PDataSection = Ctx->getCOFFSection(
753 ".pdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
754 SectionKind::getDataRel());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]755
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]756 XDataSection = Ctx->getCOFFSection(
757 ".xdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
758 SectionKind::getDataRel());
Saleem Abdulrasoola35f04a2014-06-08 00:34:23 +0000[diff] [blame]759
David Majnemer4eecd302015-05-30 04:56:02 +0000[diff] [blame]760 SXDataSection = Ctx->getCOFFSection(".sxdata", COFF::IMAGE_SCN_LNK_INFO,
761 SectionKind::getMetadata());
762
Rafael Espindola6ed58a22015-03-10 21:16:18 +0000[diff] [blame]763 TLSDataSection = Ctx->getCOFFSection(
764 ".tls$", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ |
765 COFF::IMAGE_SCN_MEM_WRITE,
766 SectionKind::getDataRel());
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]767
Swaroop Sridhare9247ab2015-06-25 00:28:42 +0000[diff] [blame]768 StackMapSection = Ctx->getCOFFSection(".llvm_stackmaps",
769 COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
770 COFF::IMAGE_SCN_MEM_READ,
NAKAMURA Takumi0a7d0ad2015-09-22 11:15:07 +0000[diff] [blame]771 SectionKind::getReadOnly());
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]772}
773
Daniel Sanders8d8b13d2015-06-16 12:18:07 +0000[diff] [blame]774void MCObjectFileInfo::InitMCObjectFileInfo(const Triple &TheTriple,
775 Reloc::Model relocm,
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]776 CodeModel::Model cm,
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]777 MCContext &ctx) {
778 RelocM = relocm;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]779 CMModel = cm;
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]780 Ctx = &ctx;
781
782 // Common.
783 CommDirectiveSupportsAlignment = true;
784 SupportsWeakOmittedEHFrame = true;
Tim Northoverd1c6f512014-03-29 09:03:13 +0000[diff] [blame]785 SupportsCompactUnwindWithoutEHFrame = false;
Tim Northoverf8e47e42015-10-28 22:56:36 +0000[diff] [blame]786 OmitDwarfIfHaveCompactUnwind = false;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]787
Rafael Espindolaaa7851d2014-05-12 13:47:05 +0000[diff] [blame]788 PersonalityEncoding = LSDAEncoding = FDECFIEncoding = TTypeEncoding =
789 dwarf::DW_EH_PE_absptr;
Evan Chengbbf3b0d2011-07-20 19:50:42 +0000[diff] [blame]790
Bill Wendling2d1df6b2013-04-10 21:42:06 +0000[diff] [blame]791 CompactUnwindDwarfEHFrameOnly = 0;
792
Craig Topperbb694de2014-04-13 04:57:38 +0000[diff] [blame]793 EHFrameSection = nullptr; // Created on demand.
794 CompactUnwindSection = nullptr; // Used only by selected targets.
795 DwarfAccelNamesSection = nullptr; // Used only by selected targets.
796 DwarfAccelObjCSection = nullptr; // Used only by selected targets.
797 DwarfAccelNamespaceSection = nullptr; // Used only by selected targets.
798 DwarfAccelTypesSection = nullptr; // Used only by selected targets.
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]799
Daniel Sanders8d8b13d2015-06-16 12:18:07 +0000[diff] [blame]800 TT = TheTriple;
Saleem Abdulrasoolbdbc0082014-06-22 22:25:01 +0000[diff] [blame]801
Rafael Espindoladbaf0492015-08-14 15:48:41 +0000[diff] [blame]802 Triple::ArchType Arch = TT.getArch();
803 // FIXME: Checking for Arch here to filter out bogus triples such as
804 // cellspu-apple-darwin. Perhaps we should fix in Triple?
805 if ((Arch == Triple::x86 || Arch == Triple::x86_64 ||
806 Arch == Triple::arm || Arch == Triple::thumb ||
807 Arch == Triple::aarch64 ||
808 Arch == Triple::ppc || Arch == Triple::ppc64 ||
809 Arch == Triple::UnknownArch) &&
810 TT.isOSBinFormatMachO()) {
811 Env = IsMachO;
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]812 initMachOMCObjectFileInfo(TT);
Rafael Espindoladbaf0492015-08-14 15:48:41 +0000[diff] [blame]813 } else if ((Arch == Triple::x86 || Arch == Triple::x86_64 ||
814 Arch == Triple::arm || Arch == Triple::thumb) &&
815 (TT.isOSWindows() && TT.getObjectFormat() == Triple::COFF)) {
816 Env = IsCOFF;
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]817 initCOFFMCObjectFileInfo(TT);
Rafael Espindoladbaf0492015-08-14 15:48:41 +0000[diff] [blame]818 } else {
819 Env = IsELF;
Jim Grosbachbb2591f2015-06-04 23:35:03 +0000[diff] [blame]820 initELFMCObjectFileInfo(TT);
Evan Cheng76792992011-07-20 05:58:47 +0000[diff] [blame]821 }
822}
823
Daniel Sanders8d8b13d2015-06-16 12:18:07 +0000[diff] [blame]824void MCObjectFileInfo::InitMCObjectFileInfo(StringRef TT, Reloc::Model RM,
825 CodeModel::Model CM,
826 MCContext &ctx) {
827 InitMCObjectFileInfo(Triple(TT), RM, CM, ctx);
828}
829
Rafael Espindola0709a7b2015-05-21 19:20:38 +0000[diff] [blame]830MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
David Blaikiebc563272013-12-13 21:33:40 +0000[diff] [blame]831 return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP,
Rafael Espindolaba31e272015-01-29 17:33:21 +0000[diff] [blame]832 0, utostr(Hash));
David Blaikiebc563272013-12-13 21:33:40 +0000[diff] [blame]833}