mirror of
https://github.com/c64scene-ar/llvm-6502.git
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Add and sort "sections" in debug lines. This always stepping through
code in sections other than ".text", including weak sections like ctors and dtors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28909 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
52b510b4c4
commit
89d67faf30
@ -26,10 +26,6 @@ namespace llvm {
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class GlobalVariable;
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class GlobalVariable;
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class AsmPrinter : public MachineFunctionPass {
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class AsmPrinter : public MachineFunctionPass {
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/// CurrentSection - The current section we are emitting to. This is
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/// controlled and used by the SwitchSection method.
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std::string CurrentSection;
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/// FunctionNumber - This provides a unique ID for each function emitted in
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/// FunctionNumber - This provides a unique ID for each function emitted in
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/// this translation unit. It is autoincremented by SetupMachineFunction,
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/// this translation unit. It is autoincremented by SetupMachineFunction,
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/// and can be accessed with getFunctionNumber() and
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/// and can be accessed with getFunctionNumber() and
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@ -134,6 +130,10 @@ namespace llvm {
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//===--- Section Switching Directives ---------------------------------===//
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//===--- Section Switching Directives ---------------------------------===//
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/// CurrentSection - The current section we are emitting to. This is
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/// controlled and used by the SwitchSection method.
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std::string CurrentSection;
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/// SwitchToSectionDirective - This is the directive used when we want to
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/// SwitchToSectionDirective - This is the directive used when we want to
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/// emit a global to an arbitrary section. The section name is emited after
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/// emit a global to an arbitrary section. The section name is emited after
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/// this.
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/// this.
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@ -47,6 +47,7 @@ class MachineMove;
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class Module;
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class Module;
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class MRegisterInfo;
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class MRegisterInfo;
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class SubprogramDesc;
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class SubprogramDesc;
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class SourceLineInfo;
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class TargetData;
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class TargetData;
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class Type;
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class Type;
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class TypeDesc;
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class TypeDesc;
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@ -110,11 +111,6 @@ protected:
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///
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///
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bool shouldEmit;
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bool shouldEmit;
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/// IsNormalText - Flag to indicate if routine is not special case text
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/// (coalesced.)
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// FIXME - should be able to debug coalesced functions.
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bool IsNormalText;
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/// SubprogramCount - The running count of functions being compiled.
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/// SubprogramCount - The running count of functions being compiled.
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///
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///
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unsigned SubprogramCount;
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unsigned SubprogramCount;
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@ -144,10 +140,13 @@ protected:
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/// descriptors to debug information entries.
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/// descriptors to debug information entries.
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std::map<DebugInfoDesc *, DIE *> DescToDieMap;
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std::map<DebugInfoDesc *, DIE *> DescToDieMap;
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/// TypeToDieMap - Type to DIEType map.
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/// SectionMap - Provides a unique id per text section.
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///
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///
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// FIXME - Should not be needed.
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UniqueVector<std::string> SectionMap;
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std::map<Type *, DIE *> TypeToDieMap;
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/// SectionSourceLines - Tracks line numbers per text section.
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///
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std::vector<std::vector<SourceLineInfo *> > SectionSourceLines;
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//===--------------------------------------------------------------------===//
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//===--------------------------------------------------------------------===//
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// Properties to be set by the derived class ctor, used to configure the
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// Properties to be set by the derived class ctor, used to configure the
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@ -483,7 +482,7 @@ public:
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/// BeginFunction - Gather pre-function debug information. Assumes being
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/// BeginFunction - Gather pre-function debug information. Assumes being
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/// emitted immediately after the function entry point.
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/// emitted immediately after the function entry point.
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void BeginFunction(MachineFunction *MF, bool IsNormalText);
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void BeginFunction(MachineFunction *MF);
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/// EndFunction - Gather and emit post-function debug information.
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/// EndFunction - Gather and emit post-function debug information.
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///
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///
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@ -1031,9 +1031,9 @@ public:
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return SourceFiles;
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return SourceFiles;
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}
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}
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/// getSourceLines - Return a vector of source lines. Vector index + 1
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/// getSourceLines - Return a vector of source lines.
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/// equals label ID.
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///
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const std::vector<SourceLineInfo *> &getSourceLines() const {
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std::vector<SourceLineInfo *> &getSourceLines() {
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return Lines;
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return Lines;
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}
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}
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@ -1446,8 +1446,8 @@ CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
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DIE *Die = new DIE(DW_TAG_compile_unit);
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DIE *Die = new DIE(DW_TAG_compile_unit);
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Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0),
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Die->AddDelta (DW_AT_stmt_list, DW_FORM_data4, DWLabel("line", 0),
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DWLabel("section_line", 0));
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DWLabel("section_line", 0));
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Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
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// Die->AddLabel (DW_AT_high_pc, DW_FORM_addr, DWLabel("text_end", 0));
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Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
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// Die->AddLabel (DW_AT_low_pc, DW_FORM_addr, DWLabel("text_begin", 0));
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Die->AddString(DW_AT_producer, DW_FORM_string, UnitDesc->getProducer());
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Die->AddString(DW_AT_producer, DW_FORM_string, UnitDesc->getProducer());
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Die->AddUInt (DW_AT_language, DW_FORM_data1, UnitDesc->getLanguage());
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Die->AddUInt (DW_AT_language, DW_FORM_data1, UnitDesc->getLanguage());
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Die->AddString(DW_AT_name, DW_FORM_string, UnitDesc->getFileName());
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Die->AddString(DW_AT_name, DW_FORM_string, UnitDesc->getFileName());
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@ -1702,11 +1702,11 @@ void DwarfWriter::EmitInitial() {
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Asm->SwitchToDataSection(DwarfRangesSection, 0);
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Asm->SwitchToDataSection(DwarfRangesSection, 0);
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EmitLabel("section_ranges", 0);
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EmitLabel("section_ranges", 0);
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Asm->SwitchToDataSection(TextSection, 0);
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Asm->SwitchToTextSection(TextSection, 0);
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EmitLabel("text_begin", 0);
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EmitLabel("text_begin", 0);
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Asm->SwitchToDataSection(DataSection, 0);
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Asm->SwitchToDataSection(DataSection, 0);
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EmitLabel("data_begin", 0);
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EmitLabel("data_begin", 0);
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// Emit common frame information.
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// Emit common frame information.
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EmitInitialDebugFrame();
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EmitInitialDebugFrame();
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}
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}
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@ -2011,76 +2011,86 @@ void DwarfWriter::EmitDebugLines() const {
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EmitLabel("line_prolog_end", 0);
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EmitLabel("line_prolog_end", 0);
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// Emit line information
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// A sequence for each text section.
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const std::vector<SourceLineInfo *> &LineInfos = DebugInfo->getSourceLines();
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for (unsigned j = 0, M = SectionSourceLines.size(); j < M; ++j) {
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// Isolate current sections line info.
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// Dwarf assumes we start with first line of first source file.
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const std::vector<SourceLineInfo *> &LineInfos = SectionSourceLines[j];
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unsigned Source = 1;
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unsigned Line = 1;
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// Construct rows of the address, source, line, column matrix.
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for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
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SourceLineInfo *LineInfo = LineInfos[i];
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if (DwarfVerbose) {
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if (DwarfVerbose) {
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unsigned SourceID = LineInfo->getSourceID();
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const SourceFileInfo &SourceFile = SourceFiles[SourceID];
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unsigned DirectoryID = SourceFile.getDirectoryID();
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O << "\t"
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O << "\t"
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<< Asm->CommentString << " "
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<< Asm->CommentString << " "
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<< Directories[DirectoryID]
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<< "Section "
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<< SourceFile.getName() << ":"
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<< SectionMap[j + 1].c_str() << "\n";
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<< LineInfo->getLine() << "\n";
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}
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}
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// Define the line address.
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// Dwarf assumes we start with first line of first source file.
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unsigned Source = 1;
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unsigned Line = 1;
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// Construct rows of the address, source, line, column matrix.
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for (unsigned i = 0, N = LineInfos.size(); i < N; ++i) {
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SourceLineInfo *LineInfo = LineInfos[i];
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if (DwarfVerbose) {
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unsigned SourceID = LineInfo->getSourceID();
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const SourceFileInfo &SourceFile = SourceFiles[SourceID];
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unsigned DirectoryID = SourceFile.getDirectoryID();
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O << "\t"
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<< Asm->CommentString << " "
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<< Directories[DirectoryID]
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<< SourceFile.getName() << ":"
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<< LineInfo->getLine() << "\n";
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}
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// Define the line address.
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EmitInt8(0); EOL("Extended Op");
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EmitInt8(4 + 1); EOL("Op size");
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EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
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EmitReference("loc", LineInfo->getLabelID()); EOL("Location label");
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// If change of source, then switch to the new source.
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if (Source != LineInfo->getSourceID()) {
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Source = LineInfo->getSourceID();
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EmitInt8(DW_LNS_set_file); EOL("DW_LNS_set_file");
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EmitULEB128Bytes(Source); EOL("New Source");
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}
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// If change of line.
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if (Line != LineInfo->getLine()) {
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// Determine offset.
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int Offset = LineInfo->getLine() - Line;
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int Delta = Offset - MinLineDelta;
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// Update line.
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Line = LineInfo->getLine();
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// If delta is small enough and in range...
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if (Delta >= 0 && Delta < (MaxLineDelta - 1)) {
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// ... then use fast opcode.
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EmitInt8(Delta - MinLineDelta); EOL("Line Delta");
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} else {
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// ... otherwise use long hand.
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EmitInt8(DW_LNS_advance_line); EOL("DW_LNS_advance_line");
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EmitSLEB128Bytes(Offset); EOL("Line Offset");
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EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
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}
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} else {
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// Copy the previous row (different address or source)
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EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
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}
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}
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// Define last address of section.
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EmitInt8(0); EOL("Extended Op");
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EmitInt8(0); EOL("Extended Op");
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EmitInt8(4 + 1); EOL("Op size");
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EmitInt8(4 + 1); EOL("Op size");
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EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
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EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
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EmitReference("loc", LineInfo->getLabelID()); EOL("Location label");
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EmitReference("section_end", j + 1); EOL("Section end label");
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// If change of source, then switch to the new source.
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// Mark end of matrix.
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if (Source != LineInfo->getSourceID()) {
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EmitInt8(0); EOL("DW_LNE_end_sequence");
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Source = LineInfo->getSourceID();
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EmitULEB128Bytes(1); O << "\n";
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EmitInt8(DW_LNS_set_file); EOL("DW_LNS_set_file");
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EmitInt8(1); O << "\n";
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EmitULEB128Bytes(Source); EOL("New Source");
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}
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// If change of line.
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if (Line != LineInfo->getLine()) {
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// Determine offset.
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int Offset = LineInfo->getLine() - Line;
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int Delta = Offset - MinLineDelta;
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// Update line.
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Line = LineInfo->getLine();
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// If delta is small enough and in range...
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if (Delta >= 0 && Delta < (MaxLineDelta - 1)) {
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// ... then use fast opcode.
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EmitInt8(Delta - MinLineDelta); EOL("Line Delta");
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} else {
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// ... otherwise use long hand.
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EmitInt8(DW_LNS_advance_line); EOL("DW_LNS_advance_line");
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EmitSLEB128Bytes(Offset); EOL("Line Offset");
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EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
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}
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} else {
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// Copy the previous row (different address or source)
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EmitInt8(DW_LNS_copy); EOL("DW_LNS_copy");
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}
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}
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}
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// Define last address.
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EmitInt8(0); EOL("Extended Op");
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EmitInt8(4 + 1); EOL("Op size");
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EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
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EmitReference("text_end", 0); EOL("Location label");
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// Mark end of matrix.
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EmitInt8(0); EOL("DW_LNE_end_sequence");
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EmitULEB128Bytes(1); O << "\n";
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EmitInt8(1); O << "\n";
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EmitLabel("line_end", 0);
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EmitLabel("line_end", 0);
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@ -2336,14 +2346,14 @@ DwarfWriter::DwarfWriter(std::ostream &OS, AsmPrinter *A)
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, DebugInfo(NULL)
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, DebugInfo(NULL)
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, didInitial(false)
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, didInitial(false)
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, shouldEmit(false)
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, shouldEmit(false)
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, IsNormalText(false)
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, SubprogramCount(0)
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, SubprogramCount(0)
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, CompileUnits()
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, CompileUnits()
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, Abbreviations()
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, Abbreviations()
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, StringPool()
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, StringPool()
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, DescToUnitMap()
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, DescToUnitMap()
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, DescToDieMap()
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, DescToDieMap()
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, TypeToDieMap()
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, SectionMap()
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, SectionSourceLines()
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, AddressSize(sizeof(int32_t))
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, AddressSize(sizeof(int32_t))
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, hasLEB128(false)
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, hasLEB128(false)
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, hasDotLoc(false)
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, hasDotLoc(false)
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@ -2388,6 +2398,9 @@ void DwarfWriter::SetDebugInfo(MachineDebugInfo *DI) {
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// Create DIEs for each of the externally visible subprograms.
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// Create DIEs for each of the externally visible subprograms.
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ConstructSubprogramDIEs();
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ConstructSubprogramDIEs();
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// Prime section data.
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SectionMap.insert(std::string("\t") + TextSection);
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}
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}
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}
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}
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@ -2412,6 +2425,12 @@ void DwarfWriter::EndModule() {
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Asm->SwitchToDataSection(DataSection, 0);
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Asm->SwitchToDataSection(DataSection, 0);
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EmitLabel("data_end", 0);
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EmitLabel("data_end", 0);
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// End text sections.
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for (unsigned i = 1, N = SectionMap.size(); i <= N; ++i) {
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Asm->SwitchToTextSection(SectionMap[i].c_str(), 0);
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EmitLabel("section_end", i);
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}
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// Compute DIE offsets and sizes.
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// Compute DIE offsets and sizes.
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SizeAndOffsets();
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SizeAndOffsets();
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@ -2445,24 +2464,17 @@ void DwarfWriter::EndModule() {
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/// BeginFunction - Gather pre-function debug information. Assumes being
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/// BeginFunction - Gather pre-function debug information. Assumes being
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/// emitted immediately after the function entry point.
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/// emitted immediately after the function entry point.
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void DwarfWriter::BeginFunction(MachineFunction *MF, bool IsNormalText) {
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void DwarfWriter::BeginFunction(MachineFunction *MF) {
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this->MF = MF;
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this->MF = MF;
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// FIXME - should be able to debug coalesced functions.
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this->IsNormalText = IsNormalText;
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// FIXME - should be able to debug coalesced functions.
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if (!ShouldEmitDwarf()) return;
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if (IsNormalText) {
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EOL("Dwarf Begin Function");
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// Begin accumulating function debug information.
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DebugInfo->BeginFunction(MF);
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// Begin accumulating function debug information.
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DebugInfo->BeginFunction(MF);
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if (!ShouldEmitDwarf()) return;
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EOL("Dwarf Begin Function");
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// Assumes in correct section after the entry point.
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// Assumes in correct section after the entry point.
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EmitLabel("func_begin", ++SubprogramCount);
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EmitLabel("func_begin", ++SubprogramCount);
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} else {
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ShouldEmitDwarf();
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}
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}
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}
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/// EndFunction - Gather and emit post-function debug information.
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/// EndFunction - Gather and emit post-function debug information.
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@ -2471,18 +2483,31 @@ void DwarfWriter::EndFunction() {
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if (!ShouldEmitDwarf()) return;
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if (!ShouldEmitDwarf()) return;
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EOL("Dwarf End Function");
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EOL("Dwarf End Function");
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// FIXME - should be able to debug coalesced functions.
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// Define end label for subprogram.
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if (IsNormalText) {
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EmitLabel("func_end", SubprogramCount);
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// Define end label for subprogram.
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EmitLabel("func_end", SubprogramCount);
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// Construct scopes for subprogram.
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ConstructRootScope(DebugInfo->getRootScope());
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// Emit function frame information.
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// Get function line info.
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EmitFunctionDebugFrame();
|
std::vector<SourceLineInfo *> &LineInfos = DebugInfo->getSourceLines();
|
||||||
|
|
||||||
|
if (!LineInfos.empty()) {
|
||||||
|
// Get section line info.
|
||||||
|
unsigned ID = SectionMap.insert(Asm->CurrentSection);
|
||||||
|
if (SectionSourceLines.size() < ID) SectionSourceLines.resize(ID);
|
||||||
|
std::vector<SourceLineInfo *> &SectionLineInfos =SectionSourceLines[ID-1];
|
||||||
|
// Append the function info to section info.
|
||||||
|
SectionLineInfos.insert(SectionLineInfos.end(),
|
||||||
|
LineInfos.begin(), LineInfos.end());
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Construct scopes for subprogram.
|
||||||
|
ConstructRootScope(DebugInfo->getRootScope());
|
||||||
|
|
||||||
|
// Emit function frame information.
|
||||||
|
EmitFunctionDebugFrame();
|
||||||
|
|
||||||
|
// Reset the line numbers for the next function.
|
||||||
|
LineInfos.clear();
|
||||||
|
|
||||||
// Clear function debug information.
|
// Clear function debug information.
|
||||||
DebugInfo->EndFunction();
|
DebugInfo->EndFunction();
|
||||||
}
|
}
|
||||||
|
@ -489,8 +489,6 @@ void PPCAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
|
|||||||
///
|
///
|
||||||
bool DarwinAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
|
bool DarwinAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
|
||||||
DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
|
DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
|
||||||
// FIXME - should be able to debug coalesced functions.
|
|
||||||
bool IsNormalText = true;
|
|
||||||
|
|
||||||
SetupMachineFunction(MF);
|
SetupMachineFunction(MF);
|
||||||
O << "\n\n";
|
O << "\n\n";
|
||||||
@ -518,14 +516,13 @@ bool DarwinAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
|
|||||||
".section __TEXT,__textcoal_nt,coalesced,pure_instructions", F);
|
".section __TEXT,__textcoal_nt,coalesced,pure_instructions", F);
|
||||||
O << "\t.globl\t" << CurrentFnName << "\n";
|
O << "\t.globl\t" << CurrentFnName << "\n";
|
||||||
O << "\t.weak_definition\t" << CurrentFnName << "\n";
|
O << "\t.weak_definition\t" << CurrentFnName << "\n";
|
||||||
IsNormalText = false;
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
EmitAlignment(4, F);
|
EmitAlignment(4, F);
|
||||||
O << CurrentFnName << ":\n";
|
O << CurrentFnName << ":\n";
|
||||||
|
|
||||||
// Emit pre-function debug information.
|
// Emit pre-function debug information.
|
||||||
DW.BeginFunction(&MF, IsNormalText);
|
DW.BeginFunction(&MF);
|
||||||
|
|
||||||
// Print out code for the function.
|
// Print out code for the function.
|
||||||
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
|
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
|
||||||
|
@ -29,8 +29,6 @@ bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
|
|||||||
// Let PassManager know we need debug information and relay
|
// Let PassManager know we need debug information and relay
|
||||||
// the MachineDebugInfo address on to DwarfWriter.
|
// the MachineDebugInfo address on to DwarfWriter.
|
||||||
DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
|
DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
|
||||||
// FIXME - should be able to debug coalesced functions.
|
|
||||||
bool IsNormalText = true;
|
|
||||||
|
|
||||||
SetupMachineFunction(MF);
|
SetupMachineFunction(MF);
|
||||||
O << "\n\n";
|
O << "\n\n";
|
||||||
@ -74,14 +72,13 @@ bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
|
|||||||
SwitchToTextSection("", F);
|
SwitchToTextSection("", F);
|
||||||
O << "\t.weak " << CurrentFnName << "\n";
|
O << "\t.weak " << CurrentFnName << "\n";
|
||||||
}
|
}
|
||||||
IsNormalText = false;
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
O << CurrentFnName << ":\n";
|
O << CurrentFnName << ":\n";
|
||||||
|
|
||||||
if (Subtarget->TargetType == X86Subtarget::isDarwin) {
|
if (Subtarget->TargetType == X86Subtarget::isDarwin) {
|
||||||
// Emit pre-function debug information.
|
// Emit pre-function debug information.
|
||||||
DW.BeginFunction(&MF, IsNormalText);
|
DW.BeginFunction(&MF);
|
||||||
}
|
}
|
||||||
|
|
||||||
// Print out code for the function.
|
// Print out code for the function.
|
||||||
|
Loading…
Reference in New Issue
Block a user