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Pack MCSymbol::Flags in to the bitfield with other members. NFC.
[oota-llvm.git] / lib / MC / MCObjectFileInfo.cpp
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index 8ed9ba9e664fddf1a8755b26edb363fdc3195d5a..576827a72d56f372d0cc096697addcd8c5c20e3b 100644 (file)
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -39,7 +39,7 @@ static bool useCompactUnwind(const Triple &T) {
   return false;
 }
 
-void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) {
+void MCObjectFileInfo::initMachOMCObjectFileInfo(Triple T) {
   // MachO
   SupportsWeakOmittedEHFrame = false;
 
@@ -184,27 +184,27 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) {
   // Debug Information.
   DwarfAccelNamesSection =
       Ctx->getMachOSection("__DWARF", "__apple_names", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "names_begin");
   DwarfAccelObjCSection =
       Ctx->getMachOSection("__DWARF", "__apple_objc", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "objc_begin");
   // 16 character section limit...
   DwarfAccelNamespaceSection =
       Ctx->getMachOSection("__DWARF", "__apple_namespac", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "namespac_begin");
   DwarfAccelTypesSection =
       Ctx->getMachOSection("__DWARF", "__apple_types", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "types_begin");
 
   DwarfAbbrevSection =
       Ctx->getMachOSection("__DWARF", "__debug_abbrev", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "section_abbrev");
   DwarfInfoSection =
       Ctx->getMachOSection("__DWARF", "__debug_info", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "section_info");
   DwarfLineSection =
       Ctx->getMachOSection("__DWARF", "__debug_line", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "section_line");
   DwarfFrameSection =
       Ctx->getMachOSection("__DWARF", "__debug_frame", MachO::S_ATTR_DEBUG,
                            SectionKind::getMetadata());
@@ -222,26 +222,29 @@ void MCObjectFileInfo::InitMachOMCObjectFileInfo(Triple T) {
                            SectionKind::getMetadata());
   DwarfStrSection =
       Ctx->getMachOSection("__DWARF", "__debug_str", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "info_string");
   DwarfLocSection =
       Ctx->getMachOSection("__DWARF", "__debug_loc", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "section_debug_loc");
   DwarfARangesSection =
       Ctx->getMachOSection("__DWARF", "__debug_aranges", MachO::S_ATTR_DEBUG,
                            SectionKind::getMetadata());
   DwarfRangesSection =
       Ctx->getMachOSection("__DWARF", "__debug_ranges", MachO::S_ATTR_DEBUG,
-                           SectionKind::getMetadata());
+                           SectionKind::getMetadata(), "debug_range");
   DwarfDebugInlineSection =
       Ctx->getMachOSection("__DWARF", "__debug_inlined", MachO::S_ATTR_DEBUG,
                            SectionKind::getMetadata());
   StackMapSection = Ctx->getMachOSection("__LLVM_STACKMAPS", "__llvm_stackmaps",
                                          0, SectionKind::getMetadata());
 
+  FaultMapSection = Ctx->getMachOSection("__LLVM_FAULTMAPS", "__llvm_faultmaps",
+                                         0, SectionKind::getMetadata());
+
   TLSExtraDataSection = TLSTLVSection;
 }
 
-void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
+void MCObjectFileInfo::initELFMCObjectFileInfo(Triple T) {
   switch (T.getArch()) {
   case Triple::mips:
   case Triple::mipsel:
@@ -324,10 +327,16 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
   case Triple::mipsel:
   case Triple::mips64:
   case Triple::mips64el:
-    // MIPS uses indirect pointer to refer personality functions, so that the
-    // eh_frame section can be read-only.  DW.ref.personality will be generated
-    // for relocation.
+    // MIPS uses indirect pointer to refer personality functions and types, so
+    // that the eh_frame section can be read-only. DW.ref.personality will be
+    // generated for relocation.
     PersonalityEncoding = dwarf::DW_EH_PE_indirect;
+    // FIXME: The N64 ABI probably ought to use DW_EH_PE_sdata8 but we can't
+    //        identify N64 from just a triple.
+    TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
+                    dwarf::DW_EH_PE_sdata4;
+    // We don't support PC-relative LSDA references in GAS so we use the default
+    // DW_EH_PE_absptr for those.
     break;
   case Triple::ppc64:
   case Triple::ppc64le:
@@ -337,6 +346,7 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
     TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |
       dwarf::DW_EH_PE_udata8;
     break;
+  case Triple::sparcel:
   case Triple::sparc:
     if (RelocM == Reloc::PIC_) {
       LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4;
@@ -455,9 +465,10 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
   COFFDebugSymbolsSection = nullptr;
 
   // Debug Info Sections.
-  DwarfAbbrevSection =
-      Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0);
-  DwarfInfoSection = Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0);
+  DwarfAbbrevSection = Ctx->getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0,
+                                          "section_abbrev");
+  DwarfInfoSection =
+      Ctx->getELFSection(".debug_info", ELF::SHT_PROGBITS, 0, "section_info");
   DwarfLineSection = Ctx->getELFSection(".debug_line", ELF::SHT_PROGBITS, 0);
   DwarfFrameSection = Ctx->getELFSection(".debug_frame", ELF::SHT_PROGBITS, 0);
   DwarfPubNamesSection =
@@ -475,19 +486,19 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
   DwarfARangesSection =
       Ctx->getELFSection(".debug_aranges", ELF::SHT_PROGBITS, 0);
   DwarfRangesSection =
-      Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0);
+      Ctx->getELFSection(".debug_ranges", ELF::SHT_PROGBITS, 0, "debug_range");
 
   // DWARF5 Experimental Debug Info
 
   // Accelerator Tables
   DwarfAccelNamesSection =
-      Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0);
+      Ctx->getELFSection(".apple_names", ELF::SHT_PROGBITS, 0, "names_begin");
   DwarfAccelObjCSection =
-      Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0);
-  DwarfAccelNamespaceSection =
-      Ctx->getELFSection(".apple_namespaces", ELF::SHT_PROGBITS, 0);
+      Ctx->getELFSection(".apple_objc", ELF::SHT_PROGBITS, 0, "objc_begin");
+  DwarfAccelNamespaceSection = Ctx->getELFSection(
+      ".apple_namespaces", ELF::SHT_PROGBITS, 0, "namespac_begin");
   DwarfAccelTypesSection =
-      Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0);
+      Ctx->getELFSection(".apple_types", ELF::SHT_PROGBITS, 0, "types_begin");
 
   // Fission Sections
   DwarfInfoDWOSection =
@@ -502,16 +513,20 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
   DwarfLineDWOSection =
       Ctx->getELFSection(".debug_line.dwo", ELF::SHT_PROGBITS, 0);
   DwarfLocDWOSection =
-      Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0);
+      Ctx->getELFSection(".debug_loc.dwo", ELF::SHT_PROGBITS, 0, "skel_loc");
   DwarfStrOffDWOSection =
       Ctx->getELFSection(".debug_str_offsets.dwo", ELF::SHT_PROGBITS, 0);
-  DwarfAddrSection = Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0);
+  DwarfAddrSection =
+      Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0, "addr_sec");
 
   StackMapSection =
       Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
+
+  FaultMapSection =
+      Ctx->getELFSection(".llvm_faultmaps", ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
 }
 
-void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
+void MCObjectFileInfo::initCOFFMCObjectFileInfo(Triple T) {
   bool IsWoA = T.getArch() == Triple::arm || T.getArch() == Triple::thumb;
 
   CommDirectiveSupportsAlignment = true;
@@ -581,17 +596,18 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".debug_abbrev",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_abbrev");
   DwarfInfoSection = Ctx->getCOFFSection(
       ".debug_info",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_info");
   DwarfLineSection = Ctx->getCOFFSection(
       ".debug_line",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_line");
+
   DwarfFrameSection = Ctx->getCOFFSection(
       ".debug_frame",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
@@ -621,12 +637,12 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".debug_str",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "info_string");
   DwarfLocSection = Ctx->getCOFFSection(
       ".debug_loc",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_debug_loc");
   DwarfARangesSection = Ctx->getCOFFSection(
       ".debug_aranges",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
@@ -636,27 +652,27 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".debug_ranges",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "debug_range");
   DwarfInfoDWOSection = Ctx->getCOFFSection(
       ".debug_info.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_info_dwo");
   DwarfTypesDWOSection = Ctx->getCOFFSection(
       ".debug_types.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_types_dwo");
   DwarfAbbrevDWOSection = Ctx->getCOFFSection(
       ".debug_abbrev.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "section_abbrev_dwo");
   DwarfStrDWOSection = Ctx->getCOFFSection(
       ".debug_str.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "skel_string");
   DwarfLineDWOSection = Ctx->getCOFFSection(
       ".debug_line.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
@@ -666,7 +682,7 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".debug_loc.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "skel_loc");
   DwarfStrOffDWOSection = Ctx->getCOFFSection(
       ".debug_str_offsets.dwo",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
@@ -676,27 +692,27 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".debug_addr",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "addr_sec");
   DwarfAccelNamesSection = Ctx->getCOFFSection(
       ".apple_names",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "names_begin");
   DwarfAccelNamespaceSection = Ctx->getCOFFSection(
       ".apple_namespaces",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "namespac_begin");
   DwarfAccelTypesSection = Ctx->getCOFFSection(
       ".apple_types",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "types_begin");
   DwarfAccelObjCSection = Ctx->getCOFFSection(
       ".apple_objc",
       COFF::IMAGE_SCN_MEM_DISCARDABLE | COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
           COFF::IMAGE_SCN_MEM_READ,
-      SectionKind::getMetadata());
+      SectionKind::getMetadata(), "objc_begin");
 
   DrectveSection = Ctx->getCOFFSection(
       ".drectve", COFF::IMAGE_SCN_LNK_INFO | COFF::IMAGE_SCN_LNK_REMOVE,
@@ -710,13 +726,22 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
       ".xdata", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ,
       SectionKind::getDataRel());
 
+  SXDataSection = Ctx->getCOFFSection(".sxdata", COFF::IMAGE_SCN_LNK_INFO,
+                                      SectionKind::getMetadata());
+
   TLSDataSection = Ctx->getCOFFSection(
       ".tls$", COFF::IMAGE_SCN_CNT_INITIALIZED_DATA | COFF::IMAGE_SCN_MEM_READ |
                    COFF::IMAGE_SCN_MEM_WRITE,
       SectionKind::getDataRel());
+         
+  StackMapSection = Ctx->getCOFFSection(".llvm_stackmaps",
+                                        COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+                                            COFF::IMAGE_SCN_MEM_READ,
+                                        SectionKind::getReadOnly());   
 }
 
-void MCObjectFileInfo::InitMCObjectFileInfo(StringRef T, Reloc::Model relocm,
+void MCObjectFileInfo::InitMCObjectFileInfo(const Triple &TheTriple,
+                                            Reloc::Model relocm,
                                             CodeModel::Model cm,
                                             MCContext &ctx) {
   RelocM = relocm;
@@ -740,7 +765,7 @@ void MCObjectFileInfo::InitMCObjectFileInfo(StringRef T, Reloc::Model relocm,
   DwarfAccelNamespaceSection = nullptr; // Used only by selected targets.
   DwarfAccelTypesSection = nullptr;     // Used only by selected targets.
 
-  TT = Triple(T);
+  TT = TheTriple;
 
   Triple::ArchType Arch = TT.getArch();
   // FIXME: Checking for Arch here to filter out bogus triples such as
@@ -750,21 +775,27 @@ void MCObjectFileInfo::InitMCObjectFileInfo(StringRef T, Reloc::Model relocm,
        Arch == Triple::aarch64 ||
        Arch == Triple::ppc || Arch == Triple::ppc64 ||
        Arch == Triple::UnknownArch) &&
-      (TT.isOSDarwin() || TT.isOSBinFormatMachO())) {
+      TT.isOSBinFormatMachO()) {
     Env = IsMachO;
-    InitMachOMCObjectFileInfo(TT);
+    initMachOMCObjectFileInfo(TT);
   } else if ((Arch == Triple::x86 || Arch == Triple::x86_64 ||
               Arch == Triple::arm || Arch == Triple::thumb) &&
              (TT.isOSWindows() && TT.getObjectFormat() == Triple::COFF)) {
     Env = IsCOFF;
-    InitCOFFMCObjectFileInfo(TT);
+    initCOFFMCObjectFileInfo(TT);
   } else {
     Env = IsELF;
-    InitELFMCObjectFileInfo(TT);
+    initELFMCObjectFileInfo(TT);
   }
 }
 
-const MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
+void MCObjectFileInfo::InitMCObjectFileInfo(StringRef TT, Reloc::Model RM,
+                                            CodeModel::Model CM,
+                                            MCContext &ctx) {
+  InitMCObjectFileInfo(Triple(TT), RM, CM, ctx);
+}
+
+MCSection *MCObjectFileInfo::getDwarfTypesSection(uint64_t Hash) const {
   return Ctx->getELFSection(".debug_types", ELF::SHT_PROGBITS, ELF::SHF_GROUP,
                             0, utostr(Hash));
 }
C/C++ LLVM-based compilers that forbids OOTA behaviors