mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-27 15:29:51 +00:00
61558aaf4f
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131679 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
//===- MCWin64EH.h - Machine Code Win64 EH support --------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declaration of the MCDwarfFile to support the dwarf
|
|
// .file directive and the .loc directive.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_MC_MCWIN64EH_H
|
|
#define LLVM_MC_MCWIN64EH_H
|
|
|
|
#include "llvm/Support/Win64EH.h"
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
class MCStreamer;
|
|
class MCSymbol;
|
|
|
|
class MCWin64EHInstruction {
|
|
public:
|
|
typedef Win64EH::UnwindOpcodes OpType;
|
|
private:
|
|
OpType Operation;
|
|
unsigned Offset;
|
|
unsigned Register;
|
|
public:
|
|
MCWin64EHInstruction(OpType Op, unsigned Reg)
|
|
: Operation(Op), Offset(0), Register(Reg) {
|
|
assert(Op == Win64EH::UOP_PushNonVol);
|
|
}
|
|
MCWin64EHInstruction(unsigned Size)
|
|
: Operation(Size>128 ? Win64EH::UOP_AllocLarge : Win64EH::UOP_AllocSmall),
|
|
Offset(Size) { }
|
|
MCWin64EHInstruction(OpType Op, unsigned Reg,
|
|
unsigned Off)
|
|
: Operation(Op), Offset(Off), Register(Reg) {
|
|
assert(Op == Win64EH::UOP_SetFPReg ||
|
|
Op == Win64EH::UOP_SaveNonVol ||
|
|
Op == Win64EH::UOP_SaveNonVolBig ||
|
|
Op == Win64EH::UOP_SaveXMM128 ||
|
|
Op == Win64EH::UOP_SaveXMM128Big);
|
|
}
|
|
MCWin64EHInstruction(OpType Op, bool Code)
|
|
: Operation(Op), Offset(Code ? 1 : 0) {
|
|
assert(Op == Win64EH::UOP_PushMachFrame);
|
|
}
|
|
OpType getOperation() const { return Operation; }
|
|
unsigned getOffset() const { return Offset; }
|
|
unsigned getSize() const { return Offset; }
|
|
unsigned getRegister() const { return Register; }
|
|
bool isPushCodeFrame() const { return Offset == 1; }
|
|
};
|
|
|
|
struct MCWin64EHUnwindInfo {
|
|
MCWin64EHUnwindInfo() : Begin(0), End(0), ExceptionHandler(0),
|
|
Function(0), PrologEnd(0), UnwindOnly(false),
|
|
LastFrameInst(-1), ChainedParent(0),
|
|
Instructions() {}
|
|
MCSymbol *Begin;
|
|
MCSymbol *End;
|
|
const MCSymbol *ExceptionHandler;
|
|
const MCSymbol *Function;
|
|
MCSymbol *PrologEnd;
|
|
bool UnwindOnly;
|
|
int LastFrameInst;
|
|
MCWin64EHUnwindInfo *ChainedParent;
|
|
std::vector<MCWin64EHInstruction> Instructions;
|
|
};
|
|
|
|
class MCWin64EHUnwindEmitter {
|
|
public:
|
|
//
|
|
// This emits the unwind info section (.xdata in PE/COFF).
|
|
//
|
|
static void Emit(MCStreamer &streamer);
|
|
};
|
|
} // end namespace llvm
|
|
|
|
#endif
|