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Emit sections/directives in the proper order. This fixes PR1376. Also,
some small cleanup was made. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36780 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -282,8 +282,13 @@ namespace llvm {
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/// HasDotFile - True if target asm supports .file directives.
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///
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bool HasDotFile; // Defaults to false.
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/// SupportsExceptionHandling - True if target supports exception handling.
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/// SupportsDebugInformation - True if target supports emission of debugging
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/// information.
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bool SupportsDebugInformation;
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/// SupportsExceptionHandling - True if target supports
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/// exception handling.
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///
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bool SupportsExceptionHandling; // Defaults to false.
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@ -549,10 +554,13 @@ namespace llvm {
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bool hasDotFile() const {
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return HasDotFile;
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}
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bool getSupportsExceptionHandling() const {
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bool doesSupportDebugInformation() const {
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return SupportsDebugInformation;
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}
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bool doesSupportExceptionHandling() const {
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return SupportsExceptionHandling;
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}
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bool getDwarfRequiresFrameSection() const {
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bool doesDwarfRequireFrameSection() const {
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return DwarfRequiresFrameSection;
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}
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const char *getDwarfSectionOffsetDirective() const {
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@ -1955,7 +1955,7 @@ private:
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didInitial = true;
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// Dwarf sections base addresses.
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if (TAI->getDwarfRequiresFrameSection()) {
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if (TAI->doesDwarfRequireFrameSection()) {
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Asm->SwitchToDataSection(TAI->getDwarfFrameSection());
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EmitLabel("section_frame", 0);
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}
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@ -2324,7 +2324,7 @@ private:
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/// EmitInitialDebugFrame - Emit common frame info into a debug frame section.
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///
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void EmitInitialDebugFrame() {
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if (!TAI->getDwarfRequiresFrameSection())
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if (!TAI->doesDwarfRequireFrameSection())
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return;
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int stackGrowth =
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@ -2367,7 +2367,7 @@ private:
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/// EmitFunctionDebugFrame - Emit per function frame info into a debug frame
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/// section.
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void EmitFunctionDebugFrame() {
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if (!TAI->getDwarfRequiresFrameSection())
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if (!TAI->doesDwarfRequireFrameSection())
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return;
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// Start the dwarf frame section.
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@ -3124,7 +3124,7 @@ public:
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if (MMI &&
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ExceptionHandling &&
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TAI->getSupportsExceptionHandling()) {
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TAI->doesSupportExceptionHandling()) {
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shouldEmit = true;
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// Assumes in correct section after the entry point.
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EmitLabel("eh_func_begin", ++SubprogramCount);
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@ -80,6 +80,7 @@ TargetAsmInfo::TargetAsmInfo() :
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HasLEB128(false),
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HasDotLoc(false),
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HasDotFile(false),
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SupportsDebugInformation(false),
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SupportsExceptionHandling(false),
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DwarfRequiresFrameSection(true),
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DwarfSectionOffsetDirective(0),
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@ -71,9 +71,7 @@ std::string X86ATTAsmPrinter::getSectionForFunction(const Function &F) const {
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/// method to print assembly for each instruction.
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///
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bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
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if (Subtarget->isTargetDarwin() ||
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Subtarget->isTargetELF() ||
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Subtarget->isTargetCygMing()) {
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if (TAI->doesSupportDebugInformation()) {
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// Let PassManager know we need debug information and relay
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// the MachineModuleInfo address on to DwarfWriter.
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DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
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@ -150,9 +148,7 @@ bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
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F->getLinkage() == Function::WeakLinkage))
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O << "Lllvm$workaround$fake$stub$" << CurrentFnName << ":\n";
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if (Subtarget->isTargetDarwin() ||
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Subtarget->isTargetELF() ||
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Subtarget->isTargetCygMing()) {
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if (TAI->doesSupportDebugInformation()) {
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// Emit pre-function debug information.
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DW.BeginFunction(&MF);
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}
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@ -173,22 +169,17 @@ bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
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}
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}
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// Print out jump tables referenced by the function.
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// Mac OS X requires that the jump table follow the function, so that the jump
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// table is part of the same atom that the function is in.
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EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
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if (TAI->hasDotTypeDotSizeDirective())
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O << "\t.size " << CurrentFnName << ", .-" << CurrentFnName << "\n";
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if (Subtarget->isTargetDarwin() ||
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Subtarget->isTargetELF() ||
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Subtarget->isTargetCygMing()) {
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if (TAI->doesSupportDebugInformation()) {
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// Emit post-function debug information.
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DW.EndFunction();
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}
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// Print out jump tables referenced by the function.
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EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
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// We didn't modify anything.
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return false;
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}
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@ -115,9 +115,7 @@ void X86SharedAsmPrinter::decorateName(std::string &Name,
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/// doInitialization
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bool X86SharedAsmPrinter::doInitialization(Module &M) {
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if (Subtarget->isTargetELF() ||
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Subtarget->isTargetCygMing() ||
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Subtarget->isTargetDarwin()) {
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if (TAI->doesSupportDebugInformation()) {
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// Emit initial debug information.
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DW.BeginModule(&M);
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}
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@ -81,7 +81,8 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
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// Emit a local label that is preserved until the linker runs.
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JumpTableSpecialLabelPrefix = "l";
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}
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SupportsDebugInformation = true;
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NeedsSet = true;
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DwarfAbbrevSection = ".section __DWARF,__debug_abbrev,regular,debug";
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DwarfInfoSection = ".section __DWARF,__debug_info,regular,debug";
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@ -97,26 +98,21 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
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break;
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case X86Subtarget::isELF:
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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// bool HasLEB128; // Defaults to false.
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// hasDotLoc - True if target asm supports .loc directives.
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// bool HasDotLoc; // Defaults to false.
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// HasDotFile - True if target asm supports .file directives.
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// bool HasDotFile; // Defaults to false.
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ReadOnlySection = "\t.section\t.rodata\n";
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FourByteConstantSection = "\t.section\t.rodata.cst4,\"aM\",@progbits,4";
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EightByteConstantSection = "\t.section\t.rodata.cst8,\"aM\",@progbits,8";
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SixteenByteConstantSection =
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"\t.section\t.rodata.cst16,\"aM\",@progbits,16";
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SixteenByteConstantSection = "\t.section\t.rodata.cst16,\"aM\",@progbits,16";
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CStringSection = "\t.section\t.rodata.str1.1,\"aMS\",@progbits,1";
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PrivateGlobalPrefix = ".L";
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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PCSymbol = ".";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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SupportsDebugInformation = true;
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DwarfRequiresFrameSection = false;
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"\",@progbits";
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DwarfInfoSection = "\t.section\t.debug_info,\"\",@progbits";
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@ -144,14 +140,15 @@ X86TargetAsmInfo::X86TargetAsmInfo(const X86TargetMachine &TM) {
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StaticCtorsSection = "\t.section .ctors,\"aw\"";
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StaticDtorsSection = "\t.section .dtors,\"aw\"";
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HiddenDirective = NULL;
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PrivateGlobalPrefix = "L"; // Prefix for private global symbols
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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// Set up DWARF directives
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HasLEB128 = true; // Target asm supports leb128 directives (little-endian)
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AbsoluteDebugSectionOffsets = true;
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AbsoluteEHSectionOffsets = false;
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PrivateGlobalPrefix = "L"; // Prefix for private global symbols
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WeakRefDirective = "\t.weak\t";
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SetDirective = "\t.set\t";
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SupportsDebugInformation = true;
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DwarfRequiresFrameSection = false;
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DwarfSectionOffsetDirective = "\t.secrel32\t";
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DwarfAbbrevSection = "\t.section\t.debug_abbrev,\"dr\"";
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