mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 05:29:24 +00:00
Generate local variable and scope information and equivalent dwarf forms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey
parent
43970fec32
commit
b8509c5752
@ -35,6 +35,8 @@ class AsmPrinter;
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class CompileUnit;
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class CompileUnitDesc;
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class DebugInfoDesc;
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class DebugVariable;
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class DebugScope;
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class DIE;
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class DIEAbbrev;
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class GlobalVariableDesc;
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@ -78,6 +80,14 @@ protected:
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///
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AsmPrinter *Asm;
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/// M - Current module.
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///
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Module *M;
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/// MF - Current machine function.
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///
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MachineFunction *MF;
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/// DebugInfo - Collected debug information.
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///
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MachineDebugInfo *DebugInfo;
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@ -86,6 +96,10 @@ protected:
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///
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bool didInitial;
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/// SubprogramCount - The running count of functions being compiled.
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///
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unsigned SubprogramCount;
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//===--------------------------------------------------------------------===//
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// Attributes used to construct specific Dwarf sections.
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//
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@ -209,6 +223,10 @@ public:
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/// EOL - Print a newline character to asm stream. If a comment is present
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/// then it will be printed first. Comments should not contain '\n'.
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void EOL(const std::string &Comment) const;
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/// EmitAlign - Print a align directive.
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///
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void EmitAlign(unsigned Alignment) const;
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/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
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/// unsigned leb128 value.
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@ -300,6 +318,10 @@ public:
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private:
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/// AddSourceLine - Add location information to specified debug information
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/// entry.
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void AddSourceLine(DIE *Die, CompileUnitDesc *File, unsigned Line);
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/// NewType - Create a new type DIE.
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///
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DIE *NewType(DIE *Context, TypeDesc *TyDesc);
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@ -320,6 +342,19 @@ private:
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///
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DIE *NewSubprogram(SubprogramDesc *SPD);
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/// NewScopeVariable - Create a new scope variable.
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///
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DIE *NewScopeVariable(DebugVariable *DV, CompileUnit *Unit);
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/// ConstructScope - Construct the components of a scope.
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///
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void ConstructScope(DebugScope *ParentScope, DIE *ParentDie,
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CompileUnit *Unit);
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/// ConstructRootScope - Construct the scope for the subprogram.
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///
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void ConstructRootScope(DebugScope *RootScope);
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/// EmitInitial - Emit initial Dwarf declarations.
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///
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void EmitInitial() const;
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@ -330,7 +365,7 @@ private:
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/// SizeAndOffsetDie - Compute the size and offset of a DIE.
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///
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unsigned SizeAndOffsetDie(DIE *Die, unsigned Offset);
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unsigned SizeAndOffsetDie(DIE *Die, unsigned Offset, bool Last);
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/// SizeAndOffsets - Compute the size and offset of all the DIEs.
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///
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@ -382,11 +417,11 @@ private:
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/// ConstructGlobalDIEs - Create DIEs for each of the externally visible
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/// global variables.
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void ConstructGlobalDIEs(Module &M);
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void ConstructGlobalDIEs();
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/// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
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/// subprograms.
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void ConstructSubprogramDIEs(Module &M);
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void ConstructSubprogramDIEs();
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/// ShouldEmitDwarf - Returns true if Dwarf declarations should be made.
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/// When called it also checks to see if debug info is newly available. if
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@ -408,19 +443,19 @@ public:
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/// BeginModule - Emit all Dwarf sections that should come prior to the
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/// content.
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void BeginModule(Module &M);
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void BeginModule(Module *M);
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/// EndModule - Emit all Dwarf sections that should come after the content.
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///
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void EndModule(Module &M);
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void EndModule();
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/// BeginFunction - Gather pre-function debug information.
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///
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void BeginFunction(MachineFunction &MF);
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void BeginFunction(MachineFunction *MF);
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/// EndFunction - Gather and emit post-function debug information.
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///
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void EndFunction(MachineFunction &MF);
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void EndFunction();
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};
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} // end llvm namespace
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@ -55,7 +55,7 @@ class StructType;
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// Debug info constants.
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enum {
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LLVMDebugVersion = 2 // Current version of debug information.
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LLVMDebugVersion = 3 // Current version of debug information.
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};
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//===----------------------------------------------------------------------===//
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@ -299,7 +299,7 @@ public:
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void setAlign(uint64_t A) { Align = A; }
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void setOffset(uint64_t O) { Offset = O; }
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/// ApplyToFields - Target the visitor to the fields of the TypeDesc.
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/// ApplyToFields - Target the visitor to the fields of the TypeDesc.
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///
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virtual void ApplyToFields(DIVisitor *Visitor);
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@ -334,7 +334,7 @@ public:
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static bool classof(const BasicTypeDesc *) { return true; }
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static bool classof(const DebugInfoDesc *D);
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/// ApplyToFields - Target the visitor to the fields of the BasicTypeDesc.
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/// ApplyToFields - Target the visitor to the fields of the BasicTypeDesc.
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///
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virtual void ApplyToFields(DIVisitor *Visitor);
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@ -370,7 +370,7 @@ public:
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static bool classof(const DerivedTypeDesc *) { return true; }
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static bool classof(const DebugInfoDesc *D);
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/// ApplyToFields - Target the visitor to the fields of the DerivedTypeDesc.
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/// ApplyToFields - Target the visitor to the fields of the DerivedTypeDesc.
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///
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virtual void ApplyToFields(DIVisitor *Visitor);
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@ -497,6 +497,54 @@ public:
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#endif
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};
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//===----------------------------------------------------------------------===//
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/// VariableDesc - This class packages debug information associated with a
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/// subprogram variable.
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///
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class VariableDesc : public DebugInfoDesc {
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private:
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DebugInfoDesc *Context; // Context debug descriptor.
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std::string Name; // Type name (may be empty.)
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CompileUnitDesc *File; // Defined compile unit (may be NULL.)
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unsigned Line; // Defined line# (may be zero.)
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TypeDesc *TyDesc; // Type of variable.
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public:
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VariableDesc(unsigned T);
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// Accessors
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DebugInfoDesc *getContext() const { return Context; }
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const std::string &getName() const { return Name; }
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CompileUnitDesc *getFile() const { return File; }
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unsigned getLine() const { return Line; }
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TypeDesc *getType() const { return TyDesc; }
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void setContext(DebugInfoDesc *C) { Context = C; }
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void setName(const std::string &N) { Name = N; }
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void setFile(CompileUnitDesc *U) { File = U; }
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void setLine(unsigned L) { Line = L; }
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void setType(TypeDesc *T) { TyDesc = T; }
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// Implement isa/cast/dyncast.
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static bool classof(const VariableDesc *) { return true; }
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static bool classof(const DebugInfoDesc *D);
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/// ApplyToFields - Target the visitor to the fields of the VariableDesc.
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///
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virtual void ApplyToFields(DIVisitor *Visitor);
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/// getDescString - Return a string used to compose global names and labels.
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///
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virtual const char *getDescString() const;
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/// getTypeString - Return a string used to label this descriptor's type.
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///
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virtual const char *getTypeString() const;
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#ifndef NDEBUG
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virtual void dump();
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#endif
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};
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//===----------------------------------------------------------------------===//
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/// GlobalDesc - This class is the base descriptor for global functions and
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/// variables.
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@ -519,7 +567,7 @@ public:
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const std::string &getName() const { return Name; }
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CompileUnitDesc *getFile() const { return File; }
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unsigned getLine() const { return Line; }
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TypeDesc *getTypeDesc() const { return TyDesc; }
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TypeDesc *getType() const { return TyDesc; }
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bool isStatic() const { return IsStatic; }
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bool isDefinition() const { return IsDefinition; }
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void setContext(DebugInfoDesc *C) { Context = C; }
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@ -580,14 +628,11 @@ public:
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/// subprogram/function.
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class SubprogramDesc : public GlobalDesc {
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private:
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std::vector<DebugInfoDesc *> Elements;// Information about args, variables
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// and blocks.
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public:
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SubprogramDesc();
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// Accessors
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std::vector<DebugInfoDesc *> &getElements() { return Elements; }
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// Implement isa/cast/dyncast.
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static bool classof(const SubprogramDesc *) { return true; }
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@ -620,13 +665,14 @@ public:
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///
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class BlockDesc : public DebugInfoDesc {
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private:
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std::vector<DebugInfoDesc *> Elements;// Information about nested variables
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// and blocks.
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DebugInfoDesc *Context; // Context debug descriptor.
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public:
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BlockDesc();
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// Accessors
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std::vector<DebugInfoDesc *> &getElements() { return Elements; }
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DebugInfoDesc *getContext() const { return Context; }
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void setContext(DebugInfoDesc *C) { Context = C; }
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// Implement isa/cast/dyncast.
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static bool classof(const BlockDesc *) { return true; }
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@ -753,15 +799,17 @@ private:
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unsigned Line; // Source line number.
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unsigned Column; // Source column.
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unsigned SourceID; // Source ID number.
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unsigned LabelID; // Label in code ID number.
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public:
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SourceLineInfo(unsigned L, unsigned C, unsigned S)
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: Line(L), Column(C), SourceID(S) {}
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SourceLineInfo(unsigned L, unsigned C, unsigned S, unsigned I)
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: Line(L), Column(C), SourceID(S), LabelID(I) {}
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// Accessors
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unsigned getLine() const { return Line; }
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unsigned getColumn() const { return Column; }
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unsigned getSourceID() const { return SourceID; }
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unsigned getLabelID() const { return LabelID; }
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};
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//===----------------------------------------------------------------------===//
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@ -793,6 +841,68 @@ public:
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}
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};
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//===----------------------------------------------------------------------===//
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/// DebugVariable - This class is used to track local variable information.
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///
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class DebugVariable {
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private:
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VariableDesc *Desc; // Variable Descriptor.
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unsigned FrameIndex; // Variable frame index.
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public:
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DebugVariable(VariableDesc *D, unsigned I)
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: Desc(D)
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, FrameIndex(I)
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{}
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// Accessors.
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VariableDesc *getDesc() const { return Desc; }
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unsigned getFrameIndex() const { return FrameIndex; }
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};
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//===----------------------------------------------------------------------===//
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/// DebugScope - This class is used to track scope information.
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///
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class DebugScope {
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private:
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DebugScope *Parent; // Parent to this scope.
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DebugInfoDesc *Desc; // Debug info descriptor for scope.
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// Either subprogram or block.
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unsigned StartLabelID; // Label ID of the beginning of scope.
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unsigned EndLabelID; // Label ID of the end of scope.
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std::vector<DebugScope *> Scopes; // Scopes defined in scope.
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std::vector<DebugVariable *> Variables;// Variables declared in scope.
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public:
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DebugScope(DebugScope *P, DebugInfoDesc *D)
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: Parent(P)
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, Desc(D)
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, StartLabelID(0)
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, EndLabelID(0)
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, Scopes()
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, Variables()
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{}
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~DebugScope();
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// Accessors.
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DebugScope *getParent() const { return Parent; }
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DebugInfoDesc *getDesc() const { return Desc; }
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unsigned getStartLabelID() const { return StartLabelID; }
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unsigned getEndLabelID() const { return EndLabelID; }
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std::vector<DebugScope *> &getScopes() { return Scopes; }
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std::vector<DebugVariable *> &getVariables() { return Variables; }
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void setStartLabelID(unsigned S) { StartLabelID = S; }
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void setEndLabelID(unsigned E) { EndLabelID = E; }
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/// AddScope - Add a scope to the scope.
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///
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void AddScope(DebugScope *S) { Scopes.push_back(S); }
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/// AddVariable - Add a variable to the scope.
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///
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void AddVariable(DebugVariable *V) { Variables.push_back(V); }
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};
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//===----------------------------------------------------------------------===//
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/// MachineDebugInfo - This class contains debug information specific to a
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/// module. Queries can be made by different debugging schemes and reformated
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@ -800,8 +910,9 @@ public:
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///
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class MachineDebugInfo : public ImmutablePass {
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private:
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// Use the same serializer/deserializer/verifier for the module.
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// Use the same deserializer/verifier for the module.
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DIDeserializer DR;
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DIVerifier VR;
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// CompileUnits - Uniquing vector for compile units.
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UniqueVector<CompileUnitDesc *> CompileUnits;
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@ -814,6 +925,16 @@ private:
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// Lines - List of of source line correspondence.
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std::vector<SourceLineInfo *> Lines;
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// LabelID - Current number assigned to unique label numbers.
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unsigned LabelID;
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// ScopeMap - Tracks the scopes in the current function.
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std::map<DebugInfoDesc *, DebugScope *> ScopeMap;
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// RootScope - Top level scope for the current function.
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//
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DebugScope *RootScope;
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public:
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MachineDebugInfo();
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@ -844,25 +965,20 @@ public:
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///
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bool hasInfo() const { return !CompileUnits.empty(); }
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/// NextLabelID - Return the next unique label id.
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///
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unsigned NextLabelID() { return ++LabelID; }
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/// RecordLabel - Records location information and associates it with a
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/// debug label. Returns a unique label ID used to generate a label and
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/// provide correspondence to the source line list.
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unsigned RecordLabel(unsigned Line, unsigned Column, unsigned Source) {
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Lines.push_back(new SourceLineInfo(Line, Column, Source));
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return Lines.size();
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}
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unsigned RecordLabel(unsigned Line, unsigned Column, unsigned Source);
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/// RecordSource - Register a source file with debug info. Returns an source
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/// ID.
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unsigned RecordSource(const std::string &Directory,
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const std::string &Source) {
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unsigned DirectoryID = Directories.insert(Directory);
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return SourceFiles.insert(SourceFileInfo(DirectoryID, Source));
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}
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unsigned RecordSource(const CompileUnitDesc *CompileUnit) {
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return RecordSource(CompileUnit->getDirectory(),
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CompileUnit->getFileName());
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}
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const std::string &Source);
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unsigned RecordSource(const CompileUnitDesc *CompileUnit);
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/// getDirectories - Return the UniqueVector of std::string representing
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/// directories.
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@ -904,8 +1020,14 @@ public:
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std::vector<T *> AnchoredDescs;
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for (unsigned i = 0, N = Globals.size(); i < N; ++i) {
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GlobalVariable *GV = Globals[i];
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// FIXME - Tag check only necessary for bring up (changed tag values.)
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unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
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if (isa<CompileUnitDesc>(&Desc)) {
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unsigned DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
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// FIXME - In the short term, changes are too drastic to continue.
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if (DebugVersion != LLVMDebugVersion) break;
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}
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if (Tag == Desc.getTag()) {
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AnchoredDescs.push_back(cast<T>(DR.Deserialize(GV)));
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}
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@ -913,6 +1035,30 @@ public:
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return AnchoredDescs;
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}
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/// RecordRegionStart - Indicate the start of a region.
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///
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unsigned RecordRegionStart(Value *V);
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/// RecordRegionEnd - Indicate the end of a region.
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///
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unsigned RecordRegionEnd(Value *V);
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/// RecordVariable - Indicate the declaration of a local variable.
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///
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void RecordVariable(Value *V, unsigned FrameIndex);
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/// getRootScope - Return current functions root scope.
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///
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DebugScope *getRootScope() { return RootScope; }
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/// getOrCreateScope - Returns the scope associated with the given descriptor.
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///
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DebugScope *getOrCreateScope(DebugInfoDesc *ScopeDesc);
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/// ClearScopes - Delete the scope and variable info after a function is
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/// completed.
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void ClearScopes();
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}; // End class MachineDebugInfo
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@ -31,7 +31,16 @@ namespace dwarf {
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enum llvm_dwarf_constants {
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// llvm mock tags
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DW_TAG_invalid = ~0U, // Tag for invalid results.
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DW_TAG_anchor = 0 // Tag for descriptor anchors.
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DW_TAG_anchor = 0, // Tag for descriptor anchors.
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DW_TAG_auto_variable = 0x100, // Tag for local (auto) variables.
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DW_TAG_arg_variable = 0x101, // Tag for argument variables.
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DW_TAG_return_variable = 0x102, // Tag for return variables.
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DW_TAG_user_base = 0x1000, // Recommended base for user tags.
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DW_CIE_VERSION = 1, // Common frame information version.
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DW_CIE_ID = 0xffffffff // Common frame information mark.
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};
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enum dwarf_constants {
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@ -410,6 +419,7 @@ enum dwarf_constants {
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DW_MACINFO_vendor_ext = 0xff,
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// Call frame instruction encodings
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DW_CFA_extended = 0x00,
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DW_CFA_advance_loc = 0x40,
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DW_CFA_offset = 0x80,
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DW_CFA_restore = 0xc0,
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@ -18,9 +18,11 @@
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#include "llvm/Type.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/MachineDebugInfo.h"
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#include "llvm/CodeGen/MachineLocation.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/Support/CommandLine.h"
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||||
#include "llvm/Support/Mangler.h"
|
||||
#include "llvm/Target/MRegisterInfo.h"
|
||||
#include "llvm/Target/TargetMachine.h"
|
||||
|
||||
#include <iostream>
|
||||
@ -47,7 +49,7 @@ class CompileUnit {
|
||||
private:
|
||||
CompileUnitDesc *Desc; // Compile unit debug descriptor.
|
||||
unsigned ID; // File ID for source.
|
||||
DIE *Die; // Compile unit die.
|
||||
DIE *Die; // Compile unit debug information entry.
|
||||
std::map<std::string, DIE *> Globals; // A map of globally visible named
|
||||
// entities for this unit.
|
||||
|
||||
@ -153,6 +155,12 @@ public:
|
||||
Data.push_back(DIEAbbrevData(Attribute, Form));
|
||||
}
|
||||
|
||||
/// AddFirstAttribute - Adds a set of attribute information to the front
|
||||
/// of the abbreviation.
|
||||
void AddFirstAttribute(unsigned Attribute, unsigned Form) {
|
||||
Data.insert(Data.begin(), DIEAbbrevData(Attribute, Form));
|
||||
}
|
||||
|
||||
/// Emit - Print the abbreviation using the specified Dwarf writer.
|
||||
///
|
||||
void Emit(const DwarfWriter &DW) const;
|
||||
@ -321,11 +329,11 @@ struct DIEntry : public DIEValue {
|
||||
static bool classof(const DIEntry *) { return true; }
|
||||
static bool classof(const DIEValue *E) { return E->Type == isEntry; }
|
||||
|
||||
/// EmitValue - Emit die entry offset.
|
||||
/// EmitValue - Emit debug information entry offset.
|
||||
///
|
||||
virtual void EmitValue(const DwarfWriter &DW, unsigned Form) const;
|
||||
|
||||
/// SizeOf - Determine size of die entry in bytes.
|
||||
/// SizeOf - Determine size of debug information entry in bytes.
|
||||
///
|
||||
virtual unsigned SizeOf(const DwarfWriter &DW, unsigned Form) const;
|
||||
};
|
||||
@ -424,6 +432,10 @@ public:
|
||||
/// SiblingOffset - Return the offset of the debug information entry's
|
||||
/// sibling.
|
||||
unsigned SiblingOffset() const { return Offset + Size; }
|
||||
|
||||
/// AddSiblingOffset - Add a sibling offset field to the front of the DIE.
|
||||
///
|
||||
void AddSiblingOffset();
|
||||
|
||||
/// AddUInt - Add an unsigned integer attribute data and value.
|
||||
///
|
||||
@ -591,9 +603,13 @@ unsigned DIEInteger::BestForm(bool IsSigned) {
|
||||
void DIEInteger::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
||||
switch (Form) {
|
||||
case DW_FORM_flag: // Fall thru
|
||||
case DW_FORM_ref1: // Fall thru
|
||||
case DW_FORM_data1: DW.EmitInt8(Integer); break;
|
||||
case DW_FORM_ref2: // Fall thru
|
||||
case DW_FORM_data2: DW.EmitInt16(Integer); break;
|
||||
case DW_FORM_ref4: // Fall thru
|
||||
case DW_FORM_data4: DW.EmitInt32(Integer); break;
|
||||
case DW_FORM_ref8: // Fall thru
|
||||
case DW_FORM_data8: DW.EmitInt64(Integer); break;
|
||||
case DW_FORM_udata: DW.EmitULEB128Bytes(Integer); break;
|
||||
case DW_FORM_sdata: DW.EmitSLEB128Bytes(Integer); break;
|
||||
@ -606,9 +622,13 @@ void DIEInteger::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
||||
unsigned DIEInteger::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
||||
switch (Form) {
|
||||
case DW_FORM_flag: // Fall thru
|
||||
case DW_FORM_ref1: // Fall thru
|
||||
case DW_FORM_data1: return sizeof(int8_t);
|
||||
case DW_FORM_ref2: // Fall thru
|
||||
case DW_FORM_data2: return sizeof(int16_t);
|
||||
case DW_FORM_ref4: // Fall thru
|
||||
case DW_FORM_data4: return sizeof(int32_t);
|
||||
case DW_FORM_ref8: // Fall thru
|
||||
case DW_FORM_data8: return sizeof(int64_t);
|
||||
case DW_FORM_udata: return DW.SizeULEB128(Integer);
|
||||
case DW_FORM_sdata: return DW.SizeSLEB128(Integer);
|
||||
@ -674,13 +694,13 @@ unsigned DIEDelta::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
/// EmitValue - Emit die entry offset.
|
||||
/// EmitValue - Emit debug information entry offset.
|
||||
///
|
||||
void DIEntry::EmitValue(const DwarfWriter &DW, unsigned Form) const {
|
||||
DW.EmitInt32(Entry->getOffset());
|
||||
}
|
||||
|
||||
/// SizeOf - Determine size of die value in bytes.
|
||||
/// SizeOf - Determine size of debug information entry value in bytes.
|
||||
///
|
||||
unsigned DIEntry::SizeOf(const DwarfWriter &DW, unsigned Form) const {
|
||||
return sizeof(int32_t);
|
||||
@ -818,6 +838,14 @@ DIE::~DIE() {
|
||||
}
|
||||
}
|
||||
|
||||
/// AddSiblingOffset - Add a sibling offset field to the front of the DIE.
|
||||
///
|
||||
void DIE::AddSiblingOffset() {
|
||||
DIEInteger *DI = new DIEInteger(0);
|
||||
Values.insert(Values.begin(), DI);
|
||||
Abbrev->AddFirstAttribute(DW_AT_sibling, DW_FORM_ref4);
|
||||
}
|
||||
|
||||
/// AddUInt - Add an unsigned integer attribute data and value.
|
||||
///
|
||||
void DIE::AddUInt(unsigned Attribute, unsigned Form, uint64_t Integer) {
|
||||
@ -924,6 +952,12 @@ void DwarfWriter::EOL(const std::string &Comment) const {
|
||||
O << "\n";
|
||||
}
|
||||
|
||||
/// EmitAlign - Print a align directive.
|
||||
///
|
||||
void DwarfWriter::EmitAlign(unsigned Alignment) const {
|
||||
O << Asm->AlignDirective << Alignment << "\n";
|
||||
}
|
||||
|
||||
/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
|
||||
/// unsigned leb128 value.
|
||||
void DwarfWriter::EmitULEB128Bytes(unsigned Value) const {
|
||||
@ -1159,6 +1193,18 @@ DWLabel DwarfWriter::NewString(const std::string &String) {
|
||||
return DWLabel("string", StringID);
|
||||
}
|
||||
|
||||
/// AddSourceLine - Add location information to specified debug information
|
||||
/// entry.
|
||||
void DwarfWriter::AddSourceLine(DIE *Die, CompileUnitDesc *File, unsigned Line) {
|
||||
if (File && Line) {
|
||||
CompileUnit *FileUnit = FindCompileUnit(File);
|
||||
unsigned FileID = FileUnit->getID();
|
||||
Die->AddUInt(DW_AT_decl_file, 0, FileID);
|
||||
Die->AddUInt(DW_AT_decl_line, 0, Line);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/// NewBasicType - Creates a new basic type if necessary, then adds to the
|
||||
/// owner.
|
||||
/// FIXME - Should never be needed.
|
||||
@ -1320,24 +1366,18 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
|
||||
|
||||
// Extract the basic information.
|
||||
const std::string &Name = MemberDesc->getName();
|
||||
unsigned Line = MemberDesc->getLine();
|
||||
TypeDesc *MemTy = MemberDesc->getFromType();
|
||||
uint64_t Size = MemberDesc->getSize();
|
||||
uint64_t Align = MemberDesc->getAlign();
|
||||
uint64_t Offset = MemberDesc->getOffset();
|
||||
|
||||
// Construct member die.
|
||||
// Construct member debug information entry.
|
||||
DIE *Member = new DIE(DW_TAG_member);
|
||||
|
||||
// Add details.
|
||||
// Add name if not "".
|
||||
if (!Name.empty()) Member->AddString(DW_AT_name, DW_FORM_string, Name);
|
||||
if (CompileUnitDesc *File = MemberDesc->getFile()) {
|
||||
CompileUnit *FileUnit = FindCompileUnit(File);
|
||||
unsigned FileID = FileUnit->getID();
|
||||
int Line = MemberDesc->getLine();
|
||||
Member->AddUInt(DW_AT_decl_file, 0, FileID);
|
||||
Member->AddUInt(DW_AT_decl_line, 0, Line);
|
||||
}
|
||||
// Add location if available.
|
||||
AddSourceLine(Member, MemberDesc->getFile(), MemberDesc->getLine());
|
||||
|
||||
// Most of the time the field info is the same as the members.
|
||||
uint64_t FieldSize = Size;
|
||||
@ -1406,14 +1446,8 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
|
||||
if (Size) Ty->AddUInt(DW_AT_byte_size, 0, Size);
|
||||
// Add name if not anonymous or intermediate type.
|
||||
if (!Name.empty()) Ty->AddString(DW_AT_name, DW_FORM_string, Name);
|
||||
// Add source line info if present.
|
||||
if (CompileUnitDesc *File = TyDesc->getFile()) {
|
||||
CompileUnit *FileUnit = FindCompileUnit(File);
|
||||
unsigned FileID = FileUnit->getID();
|
||||
int Line = TyDesc->getLine();
|
||||
Ty->AddUInt(DW_AT_decl_file, 0, FileID);
|
||||
Ty->AddUInt(DW_AT_decl_line, 0, Line);
|
||||
}
|
||||
// Add source line info if available.
|
||||
AddSourceLine(Ty, TyDesc->getFile(), TyDesc->getLine());
|
||||
|
||||
// Add to context owner.
|
||||
Context->AddChild(Ty);
|
||||
@ -1421,7 +1455,7 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
|
||||
return Slot;
|
||||
}
|
||||
|
||||
/// NewCompileUnit - Create new compile unit and it's die.
|
||||
/// NewCompileUnit - Create new compile unit and it's debug information entry.
|
||||
///
|
||||
CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
|
||||
unsigned ID) {
|
||||
@ -1435,7 +1469,7 @@ CompileUnit *DwarfWriter::NewCompileUnit(CompileUnitDesc *UnitDesc,
|
||||
Die->AddString(DW_AT_name, DW_FORM_string, UnitDesc->getFileName());
|
||||
Die->AddString(DW_AT_comp_dir, DW_FORM_string, UnitDesc->getDirectory());
|
||||
|
||||
// Add die to descriptor map.
|
||||
// Add debug information entry to descriptor map.
|
||||
DescToDieMap[UnitDesc] = Die;
|
||||
|
||||
// Construct compile unit.
|
||||
@ -1472,20 +1506,20 @@ DIE *DwarfWriter::NewGlobalVariable(GlobalVariableDesc *GVD) {
|
||||
|
||||
// Gather the details (simplify add attribute code.)
|
||||
const std::string &Name = GVD->getName();
|
||||
unsigned FileID = Unit->getID();
|
||||
unsigned Line = GVD->getLine();
|
||||
|
||||
// Get the global's type.
|
||||
DIE *Type = NewType(Unit->getDie(), GVD->getTypeDesc());
|
||||
DIE *Type = NewType(Unit->getDie(), GVD->getType());
|
||||
|
||||
// Create the globale variable DIE.
|
||||
DIE *VariableDie = new DIE(DW_TAG_variable);
|
||||
VariableDie->AddString (DW_AT_name, DW_FORM_string, Name);
|
||||
VariableDie->AddUInt (DW_AT_decl_file, 0, FileID);
|
||||
VariableDie->AddUInt (DW_AT_decl_line, 0, Line);
|
||||
VariableDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
|
||||
VariableDie->AddUInt (DW_AT_external, DW_FORM_flag, 1);
|
||||
|
||||
// Add source line info if available.
|
||||
AddSourceLine(VariableDie, UnitDesc, GVD->getLine());
|
||||
|
||||
// Add address.
|
||||
DIEBlock *Block = new DIEBlock();
|
||||
Block->AddUInt(DW_FORM_data1, DW_OP_addr);
|
||||
Block->AddObjectLabel(DW_FORM_udata, MangledName);
|
||||
@ -1518,20 +1552,17 @@ DIE *DwarfWriter::NewSubprogram(SubprogramDesc *SPD) {
|
||||
|
||||
// Gather the details (simplify add attribute code.)
|
||||
const std::string &Name = SPD->getName();
|
||||
CompileUnitDesc *FileDesc = static_cast<CompileUnitDesc *>(SPD->getFile());
|
||||
CompileUnit *File = FindCompileUnit(FileDesc);
|
||||
unsigned FileID = File->getID();
|
||||
DIE *Type = NewBasicType(Unit->getDie(), Type::IntTy);
|
||||
unsigned Line = SPD->getLine();
|
||||
unsigned IsExternal = SPD->isStatic() ? 0 : 1;
|
||||
|
||||
DIE *SubprogramDie = new DIE(DW_TAG_subprogram);
|
||||
SubprogramDie->AddString (DW_AT_name, DW_FORM_string, Name);
|
||||
SubprogramDie->AddUInt (DW_AT_decl_file, 0, FileID);
|
||||
SubprogramDie->AddUInt (DW_AT_decl_line, 0, Line);
|
||||
SubprogramDie->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
|
||||
SubprogramDie->AddUInt (DW_AT_external, DW_FORM_flag, IsExternal);
|
||||
|
||||
// Add source line info if available.
|
||||
AddSourceLine(SubprogramDie, UnitDesc, SPD->getLine());
|
||||
|
||||
// Add to map.
|
||||
Slot = SubprogramDie;
|
||||
|
||||
@ -1544,6 +1575,119 @@ DIE *DwarfWriter::NewSubprogram(SubprogramDesc *SPD) {
|
||||
return SubprogramDie;
|
||||
}
|
||||
|
||||
|
||||
/// NewScopeVariable - Create a new scope variable.
|
||||
///
|
||||
DIE *DwarfWriter::NewScopeVariable(DebugVariable *DV, CompileUnit *Unit) {
|
||||
// Get the descriptor.
|
||||
VariableDesc *VD = DV->getDesc();
|
||||
|
||||
// Translate tag to proper Dwarf tag. The result variable is dropped for now.
|
||||
unsigned Tag;
|
||||
switch (VD->getTag()) {
|
||||
case DW_TAG_return_variable: return NULL;
|
||||
case DW_TAG_arg_variable: Tag = DW_TAG_formal_parameter; break;
|
||||
case DW_TAG_auto_variable: // fall thru
|
||||
default: Tag = DW_TAG_variable; break;
|
||||
}
|
||||
|
||||
// Define variable debug information entry.
|
||||
DIE *VariableDie = new DIE(Tag);
|
||||
VariableDie->AddString(DW_AT_name, DW_FORM_string, VD->getName());
|
||||
|
||||
// Add source line info if available.
|
||||
AddSourceLine(VariableDie, VD->getFile(), VD->getLine());
|
||||
|
||||
// Add variable type.
|
||||
DIE *Type = NewType(Unit->getDie(), VD->getType());
|
||||
VariableDie->AddDIEntry(DW_AT_type, DW_FORM_ref4, Type);
|
||||
|
||||
// Get variable address.
|
||||
MachineLocation Location;
|
||||
Asm->TM.getRegisterInfo()->getLocation(*MF, DV->getFrameIndex(), Location);
|
||||
|
||||
// Add computation for variable.
|
||||
DIEBlock *Block = new DIEBlock();
|
||||
if (Location.isRegister()) {
|
||||
// FIXME - This is a real hack.
|
||||
Block->AddUInt(DW_FORM_data1, DW_OP_reg0 + Location.getRegister());
|
||||
} else {
|
||||
// FIXME - This is a real hack.
|
||||
Block->AddUInt(DW_FORM_data1, DW_OP_breg0 + Location.getRegister());
|
||||
Block->AddUInt(DW_FORM_sdata, Location.getOffset());
|
||||
}
|
||||
Block->ComputeSize(*this);
|
||||
VariableDie->AddBlock(DW_AT_location, 0, Block);
|
||||
|
||||
return VariableDie;
|
||||
}
|
||||
|
||||
/// ConstructScope - Construct the components of a scope.
|
||||
///
|
||||
void DwarfWriter::ConstructScope(DebugScope *ParentScope,
|
||||
DIE *ParentDie, CompileUnit *Unit) {
|
||||
// Add variables to scope.
|
||||
std::vector<DebugVariable *> &Variables = ParentScope->getVariables();
|
||||
for (unsigned i = 0, N = Variables.size(); i < N; ++i) {
|
||||
DIE *VariableDie = NewScopeVariable(Variables[i], Unit);
|
||||
if (VariableDie) ParentDie->AddChild(VariableDie);
|
||||
}
|
||||
|
||||
// Add nested scopes.
|
||||
std::vector<DebugScope *> &Scopes = ParentScope->getScopes();
|
||||
for (unsigned j = 0, M = Scopes.size(); j < M; ++j) {
|
||||
// Define the Scope debug information entry.
|
||||
DebugScope *Scope = Scopes[j];
|
||||
// FIXME - Ignore inlined functions for the time being.
|
||||
if (Scope->getParent()) continue;
|
||||
|
||||
DIE *ScopeDie = new DIE(DW_TAG_lexical_block);
|
||||
|
||||
// Add the scope bounds.
|
||||
if (unsigned StartID = Scope->getStartLabelID()) {
|
||||
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
|
||||
DWLabel("loc", StartID));
|
||||
} else {
|
||||
ScopeDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
|
||||
DWLabel("func_begin", SubprogramCount));
|
||||
}
|
||||
if (unsigned EndID = Scope->getEndLabelID()) {
|
||||
ScopeDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
|
||||
DWLabel("loc", EndID));
|
||||
} else {
|
||||
ScopeDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
|
||||
DWLabel("func_end", SubprogramCount));
|
||||
}
|
||||
|
||||
// Add the scope contents.
|
||||
ConstructScope(Scope, ScopeDie, Unit);
|
||||
ParentDie->AddChild(ScopeDie);
|
||||
}
|
||||
}
|
||||
|
||||
/// ConstructRootScope - Construct the scope for the subprogram.
|
||||
///
|
||||
void DwarfWriter::ConstructRootScope(DebugScope *RootScope) {
|
||||
// Exit if there is no root scope.
|
||||
if (!RootScope) return;
|
||||
|
||||
// Get the subprogram debug information entry.
|
||||
SubprogramDesc *SPD = cast<SubprogramDesc>(RootScope->getDesc());
|
||||
DIE *SPDie = DescToDieMap[SPD];
|
||||
assert(SPDie && "Missing subprogram descriptor");
|
||||
|
||||
// Add the function bounds.
|
||||
SPDie->AddLabel(DW_AT_low_pc, DW_FORM_addr,
|
||||
DWLabel("func_begin", SubprogramCount));
|
||||
SPDie->AddLabel(DW_AT_high_pc, DW_FORM_addr,
|
||||
DWLabel("func_end", SubprogramCount));
|
||||
|
||||
CompileUnitDesc *UnitDesc = static_cast<CompileUnitDesc *>(SPD->getContext());
|
||||
CompileUnit *Unit = FindCompileUnit(UnitDesc);
|
||||
|
||||
ConstructScope(RootScope, SPDie, Unit);
|
||||
}
|
||||
|
||||
/// EmitInitial - Emit initial Dwarf declarations. This is necessary for cc
|
||||
/// tools to recognize the object file contains Dwarf information.
|
||||
///
|
||||
@ -1625,8 +1769,6 @@ void DwarfWriter::EmitDIE(DIE *Die) const {
|
||||
const std::vector<DIE *> &Children = Die->getChildren();
|
||||
|
||||
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
|
||||
// FIXME - handle sibling offsets.
|
||||
// FIXME - handle all DIE types.
|
||||
EmitDIE(Children[j]);
|
||||
}
|
||||
|
||||
@ -1636,7 +1778,13 @@ void DwarfWriter::EmitDIE(DIE *Die) const {
|
||||
|
||||
/// SizeAndOffsetDie - Compute the size and offset of a DIE.
|
||||
///
|
||||
unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset) {
|
||||
unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset, bool Last) {
|
||||
// Get the children.
|
||||
const std::vector<DIE *> &Children = Die->getChildren();
|
||||
|
||||
// If not last sibling and has children then add sibling offset attribute.
|
||||
if (!Last && !Children.empty()) Die->AddSiblingOffset();
|
||||
|
||||
// Record the abbreviation.
|
||||
Die->Complete(*this);
|
||||
|
||||
@ -1660,13 +1808,12 @@ unsigned DwarfWriter::SizeAndOffsetDie(DIE *Die, unsigned Offset) {
|
||||
}
|
||||
|
||||
// Emit the DIE children if any.
|
||||
if (Abbrev.getChildrenFlag() == DW_CHILDREN_yes) {
|
||||
const std::vector<DIE *> &Children = Die->getChildren();
|
||||
if (!Children.empty()) {
|
||||
assert(Abbrev.getChildrenFlag() == DW_CHILDREN_yes &&
|
||||
"Children flag not set");
|
||||
|
||||
for (unsigned j = 0, M = Children.size(); j < M; ++j) {
|
||||
// FIXME - handle sibling offsets.
|
||||
// FIXME - handle all DIE types.
|
||||
Offset = SizeAndOffsetDie(Children[j], Offset);
|
||||
Offset = SizeAndOffsetDie(Children[j], Offset, (j + 1) == M);
|
||||
}
|
||||
|
||||
// End of children marker.
|
||||
@ -1690,8 +1837,7 @@ void DwarfWriter::SizeAndOffsets() {
|
||||
sizeof(int16_t) + // DWARF version number
|
||||
sizeof(int32_t) + // Offset Into Abbrev. Section
|
||||
sizeof(int8_t); // Pointer Size (in bytes)
|
||||
|
||||
SizeAndOffsetDie(Unit->getDie(), Offset);
|
||||
SizeAndOffsetDie(Unit->getDie(), Offset, (i + 1) == N);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1853,7 +1999,7 @@ void DwarfWriter::EmitDebugLines() const {
|
||||
EmitInt8(0); EOL("Extended Op");
|
||||
EmitInt8(4 + 1); EOL("Op size");
|
||||
EmitInt8(DW_LNE_set_address); EOL("DW_LNE_set_address");
|
||||
EmitReference("loc", i + 1); EOL("Location label");
|
||||
EmitReference("loc", LineInfo->getLabelID()); EOL("Location label");
|
||||
|
||||
// If change of source, then switch to the new source.
|
||||
if (Source != LineInfo->getSourceID()) {
|
||||
@ -1906,7 +2052,30 @@ void DwarfWriter::EmitDebugLines() const {
|
||||
/// EmitDebugFrame - Emit visible names into a debug frame section.
|
||||
///
|
||||
void DwarfWriter::EmitDebugFrame() {
|
||||
// FIXME - Should be per frame
|
||||
// Start the dwarf pubnames section.
|
||||
Asm->SwitchSection(DwarfFrameSection, 0);
|
||||
|
||||
EmitDifference("frame_common_end", 0,
|
||||
"frame_common_begin", 0);
|
||||
EOL("Length of Common Information Entry");
|
||||
|
||||
EmitLabel("frame_common_begin", 0);
|
||||
EmitInt32(DW_CIE_ID); EOL("CIE Identifier Tag");
|
||||
EmitInt8(DW_CIE_VERSION); EOL("CIE Version");
|
||||
EmitString(""); EOL("CIE Augmentation");
|
||||
EmitULEB128Bytes(1); EOL("CIE Code Alignment Factor");
|
||||
// FIXME - needs to change based on stack direction.
|
||||
EmitSLEB128Bytes(-sizeof(int32_t)); EOL("CIE Data Alignment Factor");
|
||||
// FIXME - hard coded for PPC (LR).
|
||||
EmitInt8(0x41); EOL("CIE RA Column Hardcoded (PPC LR)");
|
||||
// FIXME - hard coded for PPC 0(SP).
|
||||
EmitULEB128Bytes(DW_CFA_def_cfa); EOL("DW_CFA_def_cfa");
|
||||
EmitULEB128Bytes(1); EOL("PPC Register SP");
|
||||
EmitULEB128Bytes(0); EOL("PPC offset 0 as in 0(SP)");
|
||||
EmitAlign(2);
|
||||
EmitLabel("frame_common_end", 0);
|
||||
|
||||
O << "\n";
|
||||
}
|
||||
|
||||
/// EmitDebugPubNames - Emit visible names into a debug pubnames section.
|
||||
@ -1962,7 +2131,7 @@ void DwarfWriter::EmitDebugStr() {
|
||||
// Start the dwarf str section.
|
||||
Asm->SwitchSection(DwarfStrSection, 0);
|
||||
|
||||
// For each of strings in teh string pool.
|
||||
// For each of strings in the string pool.
|
||||
for (unsigned StringID = 1, N = StringPool.size();
|
||||
StringID <= N; ++StringID) {
|
||||
// Emit a label for reference from debug information entries.
|
||||
@ -2057,9 +2226,9 @@ void DwarfWriter::ConstructCompileUnitDIEs() {
|
||||
|
||||
/// ConstructGlobalDIEs - Create DIEs for each of the externally visible global
|
||||
/// variables.
|
||||
void DwarfWriter::ConstructGlobalDIEs(Module &M) {
|
||||
void DwarfWriter::ConstructGlobalDIEs() {
|
||||
std::vector<GlobalVariableDesc *> GlobalVariables =
|
||||
DebugInfo->getAnchoredDescriptors<GlobalVariableDesc>(M);
|
||||
DebugInfo->getAnchoredDescriptors<GlobalVariableDesc>(*M);
|
||||
|
||||
for (unsigned i = 0, N = GlobalVariables.size(); i < N; ++i) {
|
||||
GlobalVariableDesc *GVD = GlobalVariables[i];
|
||||
@ -2069,9 +2238,9 @@ void DwarfWriter::ConstructGlobalDIEs(Module &M) {
|
||||
|
||||
/// ConstructSubprogramDIEs - Create DIEs for each of the externally visible
|
||||
/// subprograms.
|
||||
void DwarfWriter::ConstructSubprogramDIEs(Module &M) {
|
||||
void DwarfWriter::ConstructSubprogramDIEs() {
|
||||
std::vector<SubprogramDesc *> Subprograms =
|
||||
DebugInfo->getAnchoredDescriptors<SubprogramDesc>(M);
|
||||
DebugInfo->getAnchoredDescriptors<SubprogramDesc>(*M);
|
||||
|
||||
for (unsigned i = 0, N = Subprograms.size(); i < N; ++i) {
|
||||
SubprogramDesc *SPD = Subprograms[i];
|
||||
@ -2088,6 +2257,16 @@ bool DwarfWriter::ShouldEmitDwarf() {
|
||||
// Make sure initial declarations are made.
|
||||
if (!didInitial) {
|
||||
EmitInitial();
|
||||
|
||||
// Create all the compile unit DIEs.
|
||||
ConstructCompileUnitDIEs();
|
||||
|
||||
// Create DIEs for each of the externally visible global variables.
|
||||
ConstructGlobalDIEs();
|
||||
|
||||
// Create DIEs for each of the externally visible subprograms.
|
||||
ConstructSubprogramDIEs();
|
||||
|
||||
didInitial = true;
|
||||
}
|
||||
|
||||
@ -2102,8 +2281,11 @@ bool DwarfWriter::ShouldEmitDwarf() {
|
||||
DwarfWriter::DwarfWriter(std::ostream &OS, AsmPrinter *A)
|
||||
: O(OS)
|
||||
, Asm(A)
|
||||
, M(NULL)
|
||||
, MF(NULL)
|
||||
, DebugInfo(NULL)
|
||||
, didInitial(false)
|
||||
, SubprogramCount(0)
|
||||
, CompileUnits()
|
||||
, Abbreviations()
|
||||
, StringPool()
|
||||
@ -2137,14 +2319,16 @@ DwarfWriter::~DwarfWriter() {
|
||||
|
||||
/// BeginModule - Emit all Dwarf sections that should come prior to the content.
|
||||
///
|
||||
void DwarfWriter::BeginModule(Module &M) {
|
||||
void DwarfWriter::BeginModule(Module *M) {
|
||||
this->M = M;
|
||||
|
||||
if (!ShouldEmitDwarf()) return;
|
||||
EOL("Dwarf Begin Module");
|
||||
}
|
||||
|
||||
/// EndModule - Emit all Dwarf sections that should come after the content.
|
||||
///
|
||||
void DwarfWriter::EndModule(Module &M) {
|
||||
void DwarfWriter::EndModule() {
|
||||
if (!ShouldEmitDwarf()) return;
|
||||
EOL("Dwarf End Module");
|
||||
|
||||
@ -2154,15 +2338,6 @@ void DwarfWriter::EndModule(Module &M) {
|
||||
Asm->SwitchSection(DataSection, 0);
|
||||
EmitLabel("data_end", 0);
|
||||
|
||||
// Create all the compile unit DIEs.
|
||||
ConstructCompileUnitDIEs();
|
||||
|
||||
// Create DIEs for each of the externally visible global variables.
|
||||
ConstructGlobalDIEs(M);
|
||||
|
||||
// Create DIEs for each of the externally visible subprograms.
|
||||
ConstructSubprogramDIEs(M);
|
||||
|
||||
// Compute DIE offsets and sizes.
|
||||
SizeAndOffsets();
|
||||
|
||||
@ -2176,7 +2351,7 @@ void DwarfWriter::EndModule(Module &M) {
|
||||
EmitDebugLines();
|
||||
|
||||
// Emit info into a debug frame section.
|
||||
// EmitDebugFrame();
|
||||
EmitDebugFrame();
|
||||
|
||||
// Emit info into a debug pubnames section.
|
||||
EmitDebugPubNames();
|
||||
@ -2199,14 +2374,29 @@ void DwarfWriter::EndModule(Module &M) {
|
||||
|
||||
/// BeginFunction - Gather pre-function debug information.
|
||||
///
|
||||
void DwarfWriter::BeginFunction(MachineFunction &MF) {
|
||||
void DwarfWriter::BeginFunction(MachineFunction *MF) {
|
||||
this->MF = MF;
|
||||
|
||||
if (!ShouldEmitDwarf()) return;
|
||||
EOL("Dwarf Begin Function");
|
||||
|
||||
// Define begin label for subprogram.
|
||||
Asm->SwitchSection(TextSection, 0);
|
||||
EmitLabel("func_begin", ++SubprogramCount);
|
||||
}
|
||||
|
||||
|
||||
/// EndFunction - Gather and emit post-function debug information.
|
||||
///
|
||||
void DwarfWriter::EndFunction(MachineFunction &MF) {
|
||||
void DwarfWriter::EndFunction() {
|
||||
if (!ShouldEmitDwarf()) return;
|
||||
EOL("Dwarf End Function");
|
||||
|
||||
// Define end label for subprogram.
|
||||
Asm->SwitchSection(TextSection, 0);
|
||||
EmitLabel("func_end", SubprogramCount);
|
||||
|
||||
// Construct scopes for subprogram.
|
||||
ConstructRootScope(DebugInfo->getRootScope());
|
||||
DebugInfo->ClearScopes();
|
||||
}
|
||||
|
||||
@ -477,7 +477,6 @@ DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
|
||||
case DW_TAG_const_type:
|
||||
case DW_TAG_volatile_type:
|
||||
case DW_TAG_restrict_type:
|
||||
case DW_TAG_formal_parameter:
|
||||
case DW_TAG_member: return new DerivedTypeDesc(Tag);
|
||||
case DW_TAG_array_type:
|
||||
case DW_TAG_structure_type:
|
||||
@ -485,6 +484,9 @@ DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
|
||||
case DW_TAG_enumeration_type: return new CompositeTypeDesc(Tag);
|
||||
case DW_TAG_subrange_type: return new SubrangeDesc();
|
||||
case DW_TAG_enumerator: return new EnumeratorDesc();
|
||||
case DW_TAG_return_variable:
|
||||
case DW_TAG_arg_variable:
|
||||
case DW_TAG_auto_variable: return new VariableDesc(Tag);
|
||||
default: break;
|
||||
}
|
||||
return NULL;
|
||||
@ -654,6 +656,7 @@ TypeDesc::TypeDesc(unsigned T)
|
||||
, Context(NULL)
|
||||
, Name("")
|
||||
, File(NULL)
|
||||
, Line(0)
|
||||
, Size(0)
|
||||
, Align(0)
|
||||
, Offset(0)
|
||||
@ -759,7 +762,6 @@ bool DerivedTypeDesc::classof(const DebugInfoDesc *D) {
|
||||
case DW_TAG_const_type:
|
||||
case DW_TAG_volatile_type:
|
||||
case DW_TAG_restrict_type:
|
||||
case DW_TAG_formal_parameter:
|
||||
case DW_TAG_member:
|
||||
return true;
|
||||
default: break;
|
||||
@ -943,6 +945,66 @@ void EnumeratorDesc::dump() {
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
VariableDesc::VariableDesc(unsigned T)
|
||||
: DebugInfoDesc(T)
|
||||
, Context(NULL)
|
||||
, Name("")
|
||||
, File(NULL)
|
||||
, Line(0)
|
||||
, TyDesc(0)
|
||||
{}
|
||||
|
||||
// Implement isa/cast/dyncast.
|
||||
bool VariableDesc::classof(const DebugInfoDesc *D) {
|
||||
unsigned T = D->getTag();
|
||||
switch (T) {
|
||||
case DW_TAG_auto_variable:
|
||||
case DW_TAG_arg_variable:
|
||||
case DW_TAG_return_variable:
|
||||
return true;
|
||||
default: break;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/// ApplyToFields - Target the visitor to the fields of the VariableDesc.
|
||||
///
|
||||
void VariableDesc::ApplyToFields(DIVisitor *Visitor) {
|
||||
DebugInfoDesc::ApplyToFields(Visitor);
|
||||
|
||||
Visitor->Apply(Context);
|
||||
Visitor->Apply(Name);
|
||||
Visitor->Apply((DebugInfoDesc *&)File);
|
||||
Visitor->Apply(Line);
|
||||
Visitor->Apply((DebugInfoDesc *&)TyDesc);
|
||||
}
|
||||
|
||||
/// getDescString - Return a string used to compose global names and labels.
|
||||
///
|
||||
const char *VariableDesc::getDescString() const {
|
||||
return "llvm.dbg.variable";
|
||||
}
|
||||
|
||||
/// getTypeString - Return a string used to label this descriptor's type.
|
||||
///
|
||||
const char *VariableDesc::getTypeString() const {
|
||||
return "llvm.dbg.variable.type";
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
void VariableDesc::dump() {
|
||||
std::cerr << getDescString() << " "
|
||||
<< "Tag(" << getTag() << "), "
|
||||
<< "Context(" << Context << "), "
|
||||
<< "Name(\"" << Name << "\"), "
|
||||
<< "File(" << File << "), "
|
||||
<< "Line(" << Line << "), "
|
||||
<< "TyDesc(" << TyDesc << ")\n";
|
||||
}
|
||||
#endif
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
GlobalDesc::GlobalDesc(unsigned T)
|
||||
: AnchoredDesc(T)
|
||||
, Context(0)
|
||||
@ -1015,7 +1077,7 @@ void GlobalVariableDesc::dump() {
|
||||
<< "Name(\"" << getName() << "\"), "
|
||||
<< "File(" << getFile() << "),"
|
||||
<< "Line(" << getLine() << "),"
|
||||
<< "Type(\"" << getTypeDesc() << "\"), "
|
||||
<< "Type(\"" << getType() << "\"), "
|
||||
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
|
||||
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << "), "
|
||||
<< "Global(" << Global << ")\n";
|
||||
@ -1037,8 +1099,6 @@ bool SubprogramDesc::classof(const DebugInfoDesc *D) {
|
||||
/// SubprogramDesc.
|
||||
void SubprogramDesc::ApplyToFields(DIVisitor *Visitor) {
|
||||
GlobalDesc::ApplyToFields(Visitor);
|
||||
|
||||
Visitor->Apply(Elements);
|
||||
}
|
||||
|
||||
/// getDescString - Return a string used to compose global names and labels.
|
||||
@ -1068,7 +1128,7 @@ void SubprogramDesc::dump() {
|
||||
<< "Name(\"" << getName() << "\"), "
|
||||
<< "File(" << getFile() << "),"
|
||||
<< "Line(" << getLine() << "),"
|
||||
<< "Type(\"" << getTypeDesc() << "\"), "
|
||||
<< "Type(\"" << getType() << "\"), "
|
||||
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
|
||||
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << ")\n";
|
||||
}
|
||||
@ -1078,6 +1138,7 @@ void SubprogramDesc::dump() {
|
||||
|
||||
BlockDesc::BlockDesc()
|
||||
: DebugInfoDesc(DW_TAG_lexical_block)
|
||||
, Context(NULL)
|
||||
{}
|
||||
|
||||
// Implement isa/cast/dyncast.
|
||||
@ -1090,7 +1151,7 @@ bool BlockDesc::classof(const DebugInfoDesc *D) {
|
||||
void BlockDesc::ApplyToFields(DIVisitor *Visitor) {
|
||||
DebugInfoDesc::ApplyToFields(Visitor);
|
||||
|
||||
Visitor->Apply(Elements);
|
||||
Visitor->Apply(Context);
|
||||
}
|
||||
|
||||
/// getDescString - Return a string used to compose global names and labels.
|
||||
@ -1108,7 +1169,8 @@ const char *BlockDesc::getTypeString() const {
|
||||
#ifndef NDEBUG
|
||||
void BlockDesc::dump() {
|
||||
std::cerr << getDescString() << " "
|
||||
<< "Tag(" << getTag() << ")\n";
|
||||
<< "Tag(" << getTag() << "),"
|
||||
<< "Context(" << Context << ")\n";
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -1284,14 +1346,17 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
|
||||
|
||||
// Get the Tag
|
||||
unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
|
||||
if (Tag == DW_TAG_invalid) return false;
|
||||
|
||||
// Check for user defined descriptors.
|
||||
if (Tag == DW_TAG_invalid) return true;
|
||||
|
||||
// If a compile unit we need the debug version.
|
||||
if (Tag == DW_TAG_compile_unit) {
|
||||
DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
|
||||
if (DebugVersion == DW_TAG_invalid) return false;
|
||||
// FIXME - In the short term, changes are too drastic to continue.
|
||||
if (DebugVersion != LLVMDebugVersion) return false;
|
||||
}
|
||||
|
||||
|
||||
// Construct an empty DebugInfoDesc.
|
||||
DebugInfoDesc *DD = DebugInfoDesc::DescFactory(Tag);
|
||||
|
||||
@ -1332,13 +1397,23 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
DebugScope::~DebugScope() {
|
||||
for (unsigned i = 0, N = Scopes.size(); i < N; ++i) delete Scopes[i];
|
||||
for (unsigned j = 0, M = Variables.size(); j < M; ++j) delete Variables[j];
|
||||
}
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
MachineDebugInfo::MachineDebugInfo()
|
||||
: DR()
|
||||
, VR()
|
||||
, CompileUnits()
|
||||
, Directories()
|
||||
, SourceFiles()
|
||||
, Lines()
|
||||
, LabelID(0)
|
||||
, ScopeMap()
|
||||
, RootScope(NULL)
|
||||
{
|
||||
|
||||
}
|
||||
@ -1368,7 +1443,6 @@ DebugInfoDesc *MachineDebugInfo::getDescFor(Value *V) {
|
||||
/// Verify - Verify that a Value is debug information descriptor.
|
||||
///
|
||||
bool MachineDebugInfo::Verify(Value *V) {
|
||||
DIVerifier VR;
|
||||
return VR.Verify(V);
|
||||
}
|
||||
|
||||
@ -1401,3 +1475,94 @@ MachineDebugInfo::getGlobalVariablesUsing(Module &M,
|
||||
const std::string &RootName) {
|
||||
return ::getGlobalVariablesUsing(M, RootName);
|
||||
}
|
||||
|
||||
/// RecordLabel - Records location information and associates it with a
|
||||
/// debug label. Returns a unique label ID used to generate a label and
|
||||
/// provide correspondence to the source line list.
|
||||
unsigned MachineDebugInfo::RecordLabel(unsigned Line, unsigned Column,
|
||||
unsigned Source) {
|
||||
unsigned ID = NextLabelID();
|
||||
Lines.push_back(new SourceLineInfo(Line, Column, Source, ID));
|
||||
return ID;
|
||||
}
|
||||
|
||||
/// RecordSource - Register a source file with debug info. Returns an source
|
||||
/// ID.
|
||||
unsigned MachineDebugInfo::RecordSource(const std::string &Directory,
|
||||
const std::string &Source) {
|
||||
unsigned DirectoryID = Directories.insert(Directory);
|
||||
return SourceFiles.insert(SourceFileInfo(DirectoryID, Source));
|
||||
}
|
||||
unsigned MachineDebugInfo::RecordSource(const CompileUnitDesc *CompileUnit) {
|
||||
return RecordSource(CompileUnit->getDirectory(),
|
||||
CompileUnit->getFileName());
|
||||
}
|
||||
|
||||
/// RecordRegionStart - Indicate the start of a region.
|
||||
///
|
||||
unsigned MachineDebugInfo::RecordRegionStart(Value *V) {
|
||||
// FIXME - need to be able to handle split scopes because of bb cloning.
|
||||
DebugInfoDesc *ScopeDesc = DR.Deserialize(V);
|
||||
DebugScope *Scope = getOrCreateScope(ScopeDesc);
|
||||
unsigned ID = NextLabelID();
|
||||
if (!Scope->getStartLabelID()) Scope->setStartLabelID(ID);
|
||||
return ID;
|
||||
}
|
||||
|
||||
/// RecordRegionEnd - Indicate the end of a region.
|
||||
///
|
||||
unsigned MachineDebugInfo::RecordRegionEnd(Value *V) {
|
||||
// FIXME - need to be able to handle split scopes because of bb cloning.
|
||||
DebugInfoDesc *ScopeDesc = DR.Deserialize(V);
|
||||
DebugScope *Scope = getOrCreateScope(ScopeDesc);
|
||||
unsigned ID = NextLabelID();
|
||||
Scope->setEndLabelID(ID);
|
||||
return ID;
|
||||
}
|
||||
|
||||
/// RecordVariable - Indicate the declaration of a local variable.
|
||||
///
|
||||
void MachineDebugInfo::RecordVariable(Value *V, unsigned FrameIndex) {
|
||||
VariableDesc *VD = cast<VariableDesc>(DR.Deserialize(V));
|
||||
DebugScope *Scope = getOrCreateScope(VD->getContext());
|
||||
DebugVariable *DV = new DebugVariable(VD, FrameIndex);
|
||||
Scope->AddVariable(DV);
|
||||
}
|
||||
|
||||
/// getOrCreateScope - Returns the scope associated with the given descriptor.
|
||||
///
|
||||
DebugScope *MachineDebugInfo::getOrCreateScope(DebugInfoDesc *ScopeDesc) {
|
||||
DebugScope *&Slot = ScopeMap[ScopeDesc];
|
||||
if (!Slot) {
|
||||
// FIXME - breaks down when the context is an inlined function.
|
||||
DebugInfoDesc *ParentDesc = NULL;
|
||||
if (BlockDesc *Block = dyn_cast<BlockDesc>(ScopeDesc)) {
|
||||
ParentDesc = Block->getContext();
|
||||
}
|
||||
DebugScope *Parent = ParentDesc ? getOrCreateScope(ParentDesc) : NULL;
|
||||
Slot = new DebugScope(Parent, ScopeDesc);
|
||||
if (Parent) {
|
||||
Parent->AddScope(Slot);
|
||||
} else if (RootScope) {
|
||||
// FIXME - Add inlined function scopes to the root so we can delete
|
||||
// them later. Long term, handle inlined functions properly.
|
||||
RootScope->AddScope(Slot);
|
||||
} else {
|
||||
// First function is top level function.
|
||||
RootScope = Slot;
|
||||
}
|
||||
}
|
||||
return Slot;
|
||||
}
|
||||
|
||||
/// ClearScopes - Delete the scope and variable info after a function is
|
||||
/// completed.
|
||||
void MachineDebugInfo::ClearScopes() {
|
||||
if (RootScope) {
|
||||
delete RootScope;
|
||||
ScopeMap.clear();
|
||||
RootScope = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user