#define LLVM_MC_MCDWARF_H
#include "llvm/ADT/StringRef.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCObjectStreamer.h"
+#include "llvm/CodeGen/MachineLocation.h" // FIXME
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Dwarf.h"
#include <vector>
namespace llvm {
+ class TargetAsmInfo;
+ class MachineMove;
class MCContext;
+ class MCExpr;
class MCSection;
+ class MCSectionData;
+ class MCStreamer;
class MCSymbol;
class MCObjectStreamer;
class raw_ostream;
unsigned Flags;
// Isa
unsigned Isa;
+ // Discriminator
+ unsigned Discriminator;
// Flag that indicates the initial value of the is_stmt_start flag.
#define DWARF2_LINE_DEFAULT_IS_STMT 1
friend class MCContext;
friend class MCLineEntry;
MCDwarfLoc(unsigned fileNum, unsigned line, unsigned column, unsigned flags,
- unsigned isa)
- : FileNum(fileNum), Line(line), Column(column), Flags(flags), Isa(isa) {}
+ unsigned isa, unsigned discriminator)
+ : FileNum(fileNum), Line(line), Column(column), Flags(flags), Isa(isa),
+ Discriminator(discriminator) {}
// Allow the default copy constructor and assignment operator to be used
// for an MCDwarfLoc object.
public:
/// getFileNum - Get the FileNum of this MCDwarfLoc.
- unsigned getFileNum() { return FileNum; }
+ unsigned getFileNum() const { return FileNum; }
/// getLine - Get the Line of this MCDwarfLoc.
- unsigned getLine() { return Line; }
+ unsigned getLine() const { return Line; }
/// getColumn - Get the Column of this MCDwarfLoc.
- unsigned getColumn() { return Column; }
+ unsigned getColumn() const { return Column; }
/// getFlags - Get the Flags of this MCDwarfLoc.
- unsigned getFlags() { return Flags; }
+ unsigned getFlags() const { return Flags; }
/// getIsa - Get the Isa of this MCDwarfLoc.
- unsigned getIsa() { return Isa; }
+ unsigned getIsa() const { return Isa; }
+
+ /// getDiscriminator - Get the Discriminator of this MCDwarfLoc.
+ unsigned getDiscriminator() const { return Discriminator; }
/// setFileNum - Set the FileNum of this MCDwarfLoc.
void setFileNum(unsigned fileNum) { FileNum = fileNum; }
/// setIsa - Set the Isa of this MCDwarfLoc.
void setIsa(unsigned isa) { Isa = isa; }
+
+ /// setDiscriminator - Set the Discriminator of this MCDwarfLoc.
+ void setDiscriminator(unsigned discriminator) {
+ Discriminator = discriminator;
+ }
};
/// MCLineEntry - Instances of this class represent the line information for
MCLineEntry(MCSymbol *label, const MCDwarfLoc loc) : MCDwarfLoc(loc),
Label(label) {}
- MCSymbol *getLabel() { return Label; }
+ MCSymbol *getLabel() const { return Label; }
// This is called when an instruction is assembled into the specified
// section and if there is information from the last .loc directive that
// has yet to have a line entry made for it is made.
- static void Make(MCObjectStreamer *MCOS, const MCSection *Section);
+ static void Make(MCStreamer *MCOS, const MCSection *Section);
};
/// MCLineSection - Instances of this class represent the line information
typedef std::vector<MCLineEntry> MCLineEntryCollection;
typedef MCLineEntryCollection::iterator iterator;
+ typedef MCLineEntryCollection::const_iterator const_iterator;
private:
MCLineEntryCollection MCLineEntries;
public:
- MCLineEntryCollection *getMCLineEntries() { return &MCLineEntries; }
+ const MCLineEntryCollection *getMCLineEntries() const {
+ return &MCLineEntries;
+ }
};
class MCDwarfFileTable {
//
// This emits the Dwarf file and the line tables.
//
- static void Emit(MCObjectStreamer *MCOS, const MCSection *DwarfLineSection);
+ static void Emit(MCStreamer *MCOS);
};
class MCDwarfLineAddr {
static void Encode(int64_t LineDelta, uint64_t AddrDelta, raw_ostream &OS);
/// Utility function to emit the encoding to a streamer.
- static void Emit(MCObjectStreamer *MCOS,
+ static void Emit(MCStreamer *MCOS,
int64_t LineDelta,uint64_t AddrDelta);
- /// Utility function to compute the size of the encoding.
- static uint64_t ComputeSize(int64_t LineDelta, uint64_t AddrDelta);
-
/// Utility function to write the encoding to an object writer.
static void Write(MCObjectWriter *OW,
int64_t LineDelta, uint64_t AddrDelta);
};
+
+ class MCCFIInstruction {
+ public:
+ enum OpType { SameValue, Remember, Restore, Move, RelMove };
+ private:
+ OpType Operation;
+ MCSymbol *Label;
+ // Move to & from location.
+ MachineLocation Destination;
+ MachineLocation Source;
+ public:
+ MCCFIInstruction(OpType Op, MCSymbol *L)
+ : Operation(Op), Label(L) {
+ assert(Op == Remember || Op == Restore);
+ }
+ MCCFIInstruction(OpType Op, MCSymbol *L, unsigned Register)
+ : Operation(Op), Label(L), Destination(Register) {
+ assert(Op == SameValue);
+ }
+ MCCFIInstruction(MCSymbol *L, const MachineLocation &D,
+ const MachineLocation &S)
+ : Operation(Move), Label(L), Destination(D), Source(S) {
+ }
+ MCCFIInstruction(OpType Op, MCSymbol *L, const MachineLocation &D,
+ const MachineLocation &S)
+ : Operation(Op), Label(L), Destination(D), Source(S) {
+ assert(Op == RelMove);
+ }
+ OpType getOperation() const { return Operation; }
+ MCSymbol *getLabel() const { return Label; }
+ const MachineLocation &getDestination() const { return Destination; }
+ const MachineLocation &getSource() const { return Source; }
+ };
+
+ struct MCDwarfFrameInfo {
+ MCDwarfFrameInfo() : Begin(0), End(0), Personality(0), Lsda(0),
+ Function(0), Instructions(), PersonalityEncoding(),
+ LsdaEncoding(0) {}
+ MCSymbol *Begin;
+ MCSymbol *End;
+ const MCSymbol *Personality;
+ const MCSymbol *Lsda;
+ const MCSymbol *Function;
+ std::vector<MCCFIInstruction> Instructions;
+ unsigned PersonalityEncoding;
+ unsigned LsdaEncoding;
+ };
+
+ class MCDwarfFrameEmitter {
+ public:
+ //
+ // This emits the frame info section.
+ //
+ static void Emit(MCStreamer &streamer, bool usingCFI,
+ bool isEH);
+ static void EmitAdvanceLoc(MCStreamer &Streamer, uint64_t AddrDelta);
+ static void EncodeAdvanceLoc(uint64_t AddrDelta, raw_ostream &OS);
+ };
} // end namespace llvm
#endif
projects / oota-llvm.git / blobdiff