#ifndef LLVM_CODEGEN_ASMPRINTER_DWARFEXCEPTION_H
#define LLVM_CODEGEN_ASMPRINTER_DWARFEXCEPTION_H
-#include "DIE.h"
-#include "DwarfPrinter.h"
-#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/ADT/DenseMap.h"
-#include <string>
+#include <vector>
namespace llvm {
+template <typename T> class SmallVectorImpl;
struct LandingPadInfo;
class MachineModuleInfo;
+class MachineMove;
+class MachineInstr;
+class MachineFunction;
class MCAsmInfo;
class MCExpr;
-class Timer;
-class raw_ostream;
+class MCSymbol;
+class Function;
+class AsmPrinter;
//===----------------------------------------------------------------------===//
/// DwarfException - Emits Dwarf exception handling directives.
///
-class DwarfException : public DwarfPrinter {
- struct FunctionEHFrameInfo {
- MCSymbol *FunctionEHSym; // L_foo.eh
- unsigned Number;
- unsigned PersonalityIndex;
- bool hasCalls;
- bool hasLandingPads;
- std::vector<MachineMove> Moves;
- const Function *function;
-
- FunctionEHFrameInfo(MCSymbol *EHSym, unsigned Num, unsigned P,
- bool hC, bool hL,
- const std::vector<MachineMove> &M,
- const Function *f):
- FunctionEHSym(EHSym), Number(Num), PersonalityIndex(P),
- hasCalls(hC), hasLandingPads(hL), Moves(M), function (f) { }
- };
-
- std::vector<FunctionEHFrameInfo> EHFrames;
+class DwarfException {
+protected:
+ /// Asm - Target of Dwarf emission.
+ AsmPrinter *Asm;
- /// UsesLSDA - Indicates whether an FDE that uses the CIE at the given index
- /// uses an LSDA. If so, then we need to encode that information in the CIE's
- /// augmentation.
- DenseMap<unsigned, bool> UsesLSDA;
-
- /// shouldEmitTable - Per-function flag to indicate if EH tables should
- /// be emitted.
- bool shouldEmitTable;
-
- /// shouldEmitMoves - Per-function flag to indicate if frame moves info
- /// should be emitted.
- bool shouldEmitMoves;
-
- /// shouldEmitTableModule - Per-module flag to indicate if EH tables
- /// should be emitted.
- bool shouldEmitTableModule;
-
- /// shouldEmitFrameModule - Per-module flag to indicate if frame moves
- /// should be emitted.
- bool shouldEmitMovesModule;
-
- /// ExceptionTimer - Timer for the Dwarf exception writer.
- Timer *ExceptionTimer;
-
- /// EmitCIE - Emit a Common Information Entry (CIE). This holds information
- /// that is shared among many Frame Description Entries. There is at least
- /// one CIE in every non-empty .debug_frame section.
- void EmitCIE(const Function *Personality, unsigned Index);
-
- /// EmitFDE - Emit the Frame Description Entry (FDE) for the function.
- void EmitFDE(const FunctionEHFrameInfo &EHFrameInfo);
+ /// MMI - Collected machine module information.
+ MachineModuleInfo *MMI;
/// EmitExceptionTable - Emit landing pads and actions.
///
//===--------------------------------------------------------------------===//
// Main entry points.
//
- DwarfException(raw_ostream &OS, AsmPrinter *A, const MCAsmInfo *T);
+ DwarfException(AsmPrinter *A);
virtual ~DwarfException();
- /// BeginModule - Emit all exception information that should come prior to the
+ /// EndModule - Emit all exception information that should come after the
/// content.
- void BeginModule(Module *m, MachineModuleInfo *mmi) {
- this->M = m;
- this->MMI = mmi;
- }
+ virtual void EndModule();
+
+ /// BeginFunction - Gather pre-function exception information. Assumes being
+ /// emitted immediately after the function entry point.
+ virtual void BeginFunction(const MachineFunction *MF);
+
+ /// EndFunction - Gather and emit post-function exception information.
+ virtual void EndFunction();
+};
+
+class DwarfCFIException : public DwarfException {
+ /// shouldEmitTable - Per-function flag to indicate if EH tables should
+ /// be emitted.
+ bool shouldEmitTable;
+
+ /// shouldEmitMoves - Per-function flag to indicate if frame moves info
+ /// should be emitted.
+ bool shouldEmitMoves;
+
+ /// shouldEmitTableModule - Per-module flag to indicate if EH tables
+ /// should be emitted.
+ bool shouldEmitTableModule;
+public:
+ //===--------------------------------------------------------------------===//
+ // Main entry points.
+ //
+ DwarfCFIException(AsmPrinter *A);
+ virtual ~DwarfCFIException();
+
+ /// EndModule - Emit all exception information that should come after the
+ /// content.
+ virtual void EndModule();
+
+ /// BeginFunction - Gather pre-function exception information. Assumes being
+ /// emitted immediately after the function entry point.
+ virtual void BeginFunction(const MachineFunction *MF);
+
+ /// EndFunction - Gather and emit post-function exception information.
+ virtual void EndFunction();
+};
+
+class DwarfTableException : public DwarfException {
+ /// shouldEmitTable - Per-function flag to indicate if EH tables should
+ /// be emitted.
+ bool shouldEmitTable;
+
+ /// shouldEmitMoves - Per-function flag to indicate if frame moves info
+ /// should be emitted.
+ bool shouldEmitMoves;
+
+ /// shouldEmitTableModule - Per-module flag to indicate if EH tables
+ /// should be emitted.
+ bool shouldEmitTableModule;
+
+ /// shouldEmitMovesModule - Per-module flag to indicate if frame moves
+ /// should be emitted.
+ bool shouldEmitMovesModule;
+
+ struct FunctionEHFrameInfo {
+ MCSymbol *FunctionEHSym; // L_foo.eh
+ unsigned Number;
+ unsigned PersonalityIndex;
+ bool adjustsStack;
+ bool hasLandingPads;
+ std::vector<MachineMove> Moves;
+ const Function *function;
+
+ FunctionEHFrameInfo(MCSymbol *EHSym, unsigned Num, unsigned P,
+ bool hC, bool hL,
+ const std::vector<MachineMove> &M,
+ const Function *f):
+ FunctionEHSym(EHSym), Number(Num), PersonalityIndex(P),
+ adjustsStack(hC), hasLandingPads(hL), Moves(M), function (f) { }
+ };
+
+ std::vector<FunctionEHFrameInfo> EHFrames;
+
+ /// UsesLSDA - Indicates whether an FDE that uses the CIE at the given index
+ /// uses an LSDA. If so, then we need to encode that information in the CIE's
+ /// augmentation.
+ DenseMap<unsigned, bool> UsesLSDA;
+
+ /// EmitCIE - Emit a Common Information Entry (CIE). This holds information
+ /// that is shared among many Frame Description Entries. There is at least
+ /// one CIE in every non-empty .debug_frame section.
+ void EmitCIE(const Function *Personality, unsigned Index);
+
+ /// EmitFDE - Emit the Frame Description Entry (FDE) for the function.
+ void EmitFDE(const FunctionEHFrameInfo &EHFrameInfo);
+public:
+ //===--------------------------------------------------------------------===//
+ // Main entry points.
+ //
+ DwarfTableException(AsmPrinter *A);
+ virtual ~DwarfTableException();
/// EndModule - Emit all exception information that should come after the
/// content.
- void EndModule();
+ virtual void EndModule();
/// BeginFunction - Gather pre-function exception information. Assumes being
/// emitted immediately after the function entry point.
- void BeginFunction(const MachineFunction *MF);
+ virtual void BeginFunction(const MachineFunction *MF);
/// EndFunction - Gather and emit post-function exception information.
- void EndFunction();
+ virtual void EndFunction();
};
} // End of namespace llvm
projects / oota-llvm.git / blobdiff