/usr/include/llvm-3.5/llvm/MC/MCWin64EH.h is in llvm-3.5-dev 1:3.5.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | //===- 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 declarations to support the Win64 Exception Handling
// scheme in MC.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCWIN64EH_H
#define LLVM_MC_MCWIN64EH_H
#include "llvm/MC/MCWinEH.h"
#include "llvm/Support/Win64EH.h"
#include <vector>
namespace llvm {
class StringRef;
class MCStreamer;
class MCSymbol;
namespace Win64EH {
struct Instruction {
static WinEH::Instruction PushNonVol(MCSymbol *L, unsigned Reg) {
return WinEH::Instruction(Win64EH::UOP_PushNonVol, L, Reg, -1);
}
static WinEH::Instruction Alloc(MCSymbol *L, unsigned Size) {
return WinEH::Instruction(Size > 128 ? UOP_AllocLarge : UOP_AllocSmall, L,
-1, Size);
}
static WinEH::Instruction PushMachFrame(MCSymbol *L, bool Code) {
return WinEH::Instruction(UOP_PushMachFrame, L, -1, Code ? 1 : 0);
}
static WinEH::Instruction SaveNonVol(MCSymbol *L, unsigned Reg,
unsigned Offset) {
return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveNonVolBig
: UOP_SaveNonVol,
L, Reg, Offset);
}
static WinEH::Instruction SaveXMM(MCSymbol *L, unsigned Reg,
unsigned Offset) {
return WinEH::Instruction(Offset > 512 * 1024 - 8 ? UOP_SaveXMM128Big
: UOP_SaveXMM128,
L, Reg, Offset);
}
static WinEH::Instruction SetFPReg(MCSymbol *L, unsigned Reg, unsigned Off) {
return WinEH::Instruction(UOP_SetFPReg, L, Reg, Off);
}
};
}
struct MCWinFrameInfo {
MCWinFrameInfo()
: Begin(nullptr), End(nullptr),ExceptionHandler(nullptr),
Function(nullptr), PrologEnd(nullptr), Symbol(nullptr),
HandlesUnwind(false), HandlesExceptions(false), LastFrameInst(-1),
ChainedParent(nullptr), Instructions() {}
MCSymbol *Begin;
MCSymbol *End;
const MCSymbol *ExceptionHandler;
const MCSymbol *Function;
MCSymbol *PrologEnd;
MCSymbol *Symbol;
bool HandlesUnwind;
bool HandlesExceptions;
int LastFrameInst;
MCWinFrameInfo *ChainedParent;
std::vector<WinEH::Instruction> Instructions;
};
class MCWin64EHUnwindEmitter {
public:
static StringRef GetSectionSuffix(const MCSymbol *func);
//
// This emits the unwind info sections (.pdata and .xdata in PE/COFF).
//
static void Emit(MCStreamer &streamer);
static void EmitUnwindInfo(MCStreamer &streamer, MCWinFrameInfo *info);
};
} // end namespace llvm
#endif
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