/usr/include/llvm-4.0/llvm/MC/MCWinEH.h is in llvm-4.0-dev 1:4.0.1-10.
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 | //===- MCWinEH.h - Windows Unwinding Support --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCWINEH_H
#define LLVM_MC_MCWINEH_H
#include <vector>
namespace llvm {
class MCSection;
class MCStreamer;
class MCSymbol;
namespace WinEH {
struct Instruction {
const MCSymbol *Label;
const unsigned Offset;
const unsigned Register;
const unsigned Operation;
Instruction(unsigned Op, MCSymbol *L, unsigned Reg, unsigned Off)
: Label(L), Offset(Off), Register(Reg), Operation(Op) {}
};
struct FrameInfo {
const MCSymbol *Begin = nullptr;
const MCSymbol *End = nullptr;
const MCSymbol *ExceptionHandler = nullptr;
const MCSymbol *Function = nullptr;
const MCSymbol *PrologEnd = nullptr;
const MCSymbol *Symbol = nullptr;
const MCSection *TextSection = nullptr;
bool HandlesUnwind = false;
bool HandlesExceptions = false;
int LastFrameInst = -1;
const FrameInfo *ChainedParent = nullptr;
std::vector<Instruction> Instructions;
FrameInfo() = default;
FrameInfo(const MCSymbol *Function, const MCSymbol *BeginFuncEHLabel)
: Begin(BeginFuncEHLabel), Function(Function) {}
FrameInfo(const MCSymbol *Function, const MCSymbol *BeginFuncEHLabel,
const FrameInfo *ChainedParent)
: Begin(BeginFuncEHLabel), Function(Function),
ChainedParent(ChainedParent) {}
};
class UnwindEmitter {
public:
virtual ~UnwindEmitter();
/// This emits the unwind info sections (.pdata and .xdata in PE/COFF).
virtual void Emit(MCStreamer &Streamer) const = 0;
virtual void EmitUnwindInfo(MCStreamer &Streamer, FrameInfo *FI) const = 0;
};
}
}
#endif
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