#define LLVM_MC_MCDWARF_H
#include "llvm/ADT/StringRef.h"
-#include "llvm/MC/MachineLocation.h"
-#include "llvm/MC/MCObjectWriter.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Compiler.h"
#include <vector>
namespace llvm {
class MCContext;
- class MCExpr;
+ class MCObjectWriter;
class MCSection;
- class MCSectionData;
class MCStreamer;
class MCSymbol;
- class MCObjectStreamer;
- class raw_ostream;
class SourceMgr;
class SMLoc;
MCDwarfFile(StringRef name, unsigned dirIndex)
: Name(name), DirIndex(dirIndex) {}
- MCDwarfFile(const MCDwarfFile&); // DO NOT IMPLEMENT
- void operator=(const MCDwarfFile&); // DO NOT IMPLEMENT
+ MCDwarfFile(const MCDwarfFile&) LLVM_DELETED_FUNCTION;
+ void operator=(const MCDwarfFile&) LLVM_DELETED_FUNCTION;
public:
/// getName - Get the base name of this MCDwarfFile.
StringRef getName() const { return Name; }
unsigned getDirIndex() const { return DirIndex; }
- /// print - Print the value to the stream \arg OS.
+ /// print - Print the value to the stream \p OS.
void print(raw_ostream &OS) const;
/// dump - Print the value to stderr.
class MCLineSection {
private:
- MCLineSection(const MCLineSection&); // DO NOT IMPLEMENT
- void operator=(const MCLineSection&); // DO NOT IMPLEMENT
+ MCLineSection(const MCLineSection&) LLVM_DELETED_FUNCTION;
+ void operator=(const MCLineSection&) LLVM_DELETED_FUNCTION;
public:
// Constructor to create an MCLineSection with an empty MCLineEntries
//
// This emits the Dwarf file and the line tables.
//
- static void Emit(MCStreamer *MCOS);
+ static const MCSymbol *Emit(MCStreamer *MCOS);
};
class MCDwarfLineAddr {
// When generating dwarf for assembly source files this emits the Dwarf
// sections.
//
- static void Emit(MCStreamer *MCOS);
+ static void Emit(MCStreamer *MCOS, const MCSymbol *LineSectionSymbol);
};
// When generating dwarf for assembly source files this is the info that is
- // needed to be gathered for each symbol that will have a dwarf2_subprogram.
- class MCGenDwarfSubprogramEntry {
+ // needed to be gathered for each symbol that will have a dwarf label.
+ class MCGenDwarfLabelEntry {
private:
// Name of the symbol without a leading underbar, if any.
StringRef Name;
unsigned FileNumber;
// The line number this symbol is at.
unsigned LineNumber;
- // The low_pc for the dwarf2_subprogram is taken from this symbol. The
- // high_pc is taken from the next symbol's value or the end of the section
- // for the last symbol
+ // The low_pc for the dwarf label is taken from this symbol.
MCSymbol *Label;
public:
- MCGenDwarfSubprogramEntry(StringRef name, unsigned fileNumber,
- unsigned lineNumber, MCSymbol *label) :
+ MCGenDwarfLabelEntry(StringRef name, unsigned fileNumber,
+ unsigned lineNumber, MCSymbol *label) :
Name(name), FileNumber(fileNumber), LineNumber(lineNumber), Label(label){}
StringRef getName() const { return Name; }
class MCCFIInstruction {
public:
- enum OpType { SameValue, RememberState, RestoreState, Move, RelMove, Escape };
+ enum OpType { OpSameValue, OpRememberState, OpRestoreState, OpOffset,
+ OpDefCfaRegister, OpDefCfaOffset, OpDefCfa, OpRelOffset,
+ OpAdjustCfaOffset, OpEscape, OpRestore, OpUndefined,
+ OpRegister };
private:
OpType Operation;
MCSymbol *Label;
- // Move to & from location.
- MachineLocation Destination;
- MachineLocation Source;
+ unsigned Register;
+ union {
+ int Offset;
+ unsigned Register2;
+ };
std::vector<char> Values;
+
+ MCCFIInstruction(OpType Op, MCSymbol *L, unsigned R, int O, StringRef V) :
+ Operation(Op), Label(L), Register(R), Offset(O),
+ Values(V.begin(), V.end()) {
+ assert(Op != OpRegister);
+ }
+
+ MCCFIInstruction(OpType Op, MCSymbol *L, unsigned R1, unsigned R2) :
+ Operation(Op), Label(L), Register(R1), Register2(R2) {
+ assert(Op == OpRegister);
+ }
+
public:
- MCCFIInstruction(OpType Op, MCSymbol *L)
- : Operation(Op), Label(L) {
- assert(Op == RememberState || Op == RestoreState);
+ static MCCFIInstruction
+ createOffset(MCSymbol *L, unsigned Register, int Offset) {
+ return MCCFIInstruction(OpOffset, L, Register, Offset, "");
}
- MCCFIInstruction(OpType Op, MCSymbol *L, unsigned Register)
- : Operation(Op), Label(L), Destination(Register) {
- assert(Op == SameValue);
+
+ static MCCFIInstruction
+ createDefCfaRegister(MCSymbol *L, unsigned Register) {
+ return MCCFIInstruction(OpDefCfaRegister, L, Register, 0, "");
}
- MCCFIInstruction(MCSymbol *L, const MachineLocation &D,
- const MachineLocation &S)
- : Operation(Move), Label(L), Destination(D), Source(S) {
+
+ static MCCFIInstruction createDefCfaOffset(MCSymbol *L, int Offset) {
+ return MCCFIInstruction(OpDefCfaOffset, L, 0, -Offset, "");
}
- MCCFIInstruction(OpType Op, MCSymbol *L, const MachineLocation &D,
- const MachineLocation &S)
- : Operation(Op), Label(L), Destination(D), Source(S) {
- assert(Op == RelMove);
+
+ static MCCFIInstruction
+ createDefCfa(MCSymbol *L, unsigned Register, int Offset) {
+ return MCCFIInstruction(OpDefCfa, L, Register, -Offset, "");
}
- MCCFIInstruction(OpType Op, MCSymbol *L, StringRef Vals)
- : Operation(Op), Label(L), Values(Vals.begin(), Vals.end()) {
- assert(Op == Escape);
+
+ static MCCFIInstruction createUndefined(MCSymbol *L, unsigned Register) {
+ return MCCFIInstruction(OpUndefined, L, Register, 0, "");
+ }
+
+ static MCCFIInstruction createRestore(MCSymbol *L, unsigned Register) {
+ return MCCFIInstruction(OpRestore, L, Register, 0, "");
+ }
+
+ static MCCFIInstruction createSameValue(MCSymbol *L, unsigned Register) {
+ return MCCFIInstruction(OpSameValue, L, Register, 0, "");
+ }
+
+ static MCCFIInstruction createRestoreState(MCSymbol *L) {
+ return MCCFIInstruction(OpRestoreState, L, 0, 0, "");
+ }
+
+ static MCCFIInstruction createRememberState(MCSymbol *L) {
+ return MCCFIInstruction(OpRememberState, L, 0, 0, "");
}
+
+ static MCCFIInstruction
+ createRelOffset(MCSymbol *L, unsigned Register, int Offset) {
+ return MCCFIInstruction(OpRelOffset, L, Register, Offset, "");
+ }
+
+ static MCCFIInstruction
+ createAdjustCfaOffset(MCSymbol *L, int Adjustment) {
+ return MCCFIInstruction(OpAdjustCfaOffset, L, 0, Adjustment, "");
+ }
+
+ static MCCFIInstruction createEscape(MCSymbol *L, StringRef Vals) {
+ return MCCFIInstruction(OpEscape, L, 0, 0, Vals);
+ }
+
+ static MCCFIInstruction
+ createRegister(MCSymbol *L, unsigned Register1, unsigned Register2) {
+ return MCCFIInstruction(OpRegister, L, Register1, Register2);
+ }
+
OpType getOperation() const { return Operation; }
MCSymbol *getLabel() const { return Label; }
- const MachineLocation &getDestination() const { return Destination; }
- const MachineLocation &getSource() const { return Source; }
+
+ unsigned getRegister() const {
+ assert(Operation == OpDefCfa || Operation == OpOffset ||
+ Operation == OpRestore || Operation == OpUndefined ||
+ Operation == OpSameValue || Operation == OpDefCfaRegister ||
+ Operation == OpRelOffset || Operation == OpRegister);
+ return Register;
+ }
+
+ unsigned getRegister2() const {
+ assert(Operation == OpRegister);
+ return Register2;
+ }
+
+ int getOffset() const {
+ assert(Operation == OpDefCfa || Operation == OpOffset ||
+ Operation == OpRelOffset || Operation == OpDefCfaOffset ||
+ Operation == OpAdjustCfaOffset);
+ return Offset;
+ }
+
const StringRef getValues() const {
+ assert(Operation == OpEscape);
return StringRef(&Values[0], Values.size());
}
};
struct MCDwarfFrameInfo {
MCDwarfFrameInfo() : Begin(0), End(0), Personality(0), Lsda(0),
Function(0), Instructions(), PersonalityEncoding(),
- LsdaEncoding(0), CompactUnwindEncoding(0) {}
+ LsdaEncoding(0), CompactUnwindEncoding(0),
+ IsSignalFrame(false) {}
MCSymbol *Begin;
MCSymbol *End;
const MCSymbol *Personality;
unsigned PersonalityEncoding;
unsigned LsdaEncoding;
uint32_t CompactUnwindEncoding;
+ bool IsSignalFrame;
};
class MCDwarfFrameEmitter {
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