mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-10 17:07:06 +00:00
f2007b3c19
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131817 91177308-0d34-0410-b5e6-96231b3b80d8
101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
//===-- llvm/Support/Win64EH.h ---Win64 EH Constants-------------*- 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 constants and structures used for implementing
|
|
// exception handling on Win64 platforms. For more information, see
|
|
// http://msdn.microsoft.com/en-us/library/1eyas8tf.aspx
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_SUPPORT_WIN64EH_H
|
|
#define LLVM_SUPPORT_WIN64EH_H
|
|
|
|
#include "llvm/Support/DataTypes.h"
|
|
|
|
namespace llvm {
|
|
namespace Win64EH {
|
|
|
|
/// UnwindOpcodes - Enumeration whose values specify a single operation in
|
|
/// the prolog of a function.
|
|
enum UnwindOpcodes {
|
|
UOP_PushNonVol = 0,
|
|
UOP_AllocLarge,
|
|
UOP_AllocSmall,
|
|
UOP_SetFPReg,
|
|
UOP_SaveNonVol,
|
|
UOP_SaveNonVolBig,
|
|
UOP_SaveXMM128,
|
|
UOP_SaveXMM128Big,
|
|
UOP_PushMachFrame
|
|
};
|
|
|
|
/// UnwindCode - This union describes a single operation in a function prolog,
|
|
/// or part thereof.
|
|
union UnwindCode {
|
|
struct {
|
|
uint8_t codeOffset;
|
|
uint8_t unwindOp:4,
|
|
opInfo:4;
|
|
} u;
|
|
uint16_t frameOffset;
|
|
};
|
|
|
|
enum {
|
|
/// UNW_ExceptionHandler - Specifies that this function has an exception
|
|
/// handler.
|
|
UNW_ExceptionHandler = 0x01,
|
|
/// UNW_TerminateHandler - Specifies that this function has a termination
|
|
/// handler.
|
|
UNW_TerminateHandler = 0x02,
|
|
/// UNW_ChainInfo - Specifies that this UnwindInfo structure is chained to
|
|
/// another one.
|
|
UNW_ChainInfo = 0x04
|
|
};
|
|
|
|
/// RuntimeFunction - An entry in the table of functions with unwind info.
|
|
struct RuntimeFunction {
|
|
uint64_t startAddress;
|
|
uint64_t endAddress;
|
|
uint64_t unwindInfoOffset;
|
|
};
|
|
|
|
/// UnwindInfo - An entry in the exception table.
|
|
struct UnwindInfo {
|
|
uint8_t version:3,
|
|
flags:5;
|
|
uint8_t prologSize;
|
|
uint8_t numCodes;
|
|
uint8_t frameRegister:4,
|
|
frameOffset:4;
|
|
UnwindCode unwindCodes[1];
|
|
|
|
void *getLanguageSpecificData() {
|
|
return reinterpret_cast<void *>(&unwindCodes[(numCodes+1) & ~1]);
|
|
}
|
|
uint64_t getLanguageSpecificHandlerOffset() {
|
|
return *reinterpret_cast<uint64_t *>(getLanguageSpecificData());
|
|
}
|
|
void setLanguageSpecificHandlerOffset(uint64_t offset) {
|
|
*reinterpret_cast<uint64_t *>(getLanguageSpecificData()) = offset;
|
|
}
|
|
RuntimeFunction *getChainedFunctionEntry() {
|
|
return reinterpret_cast<RuntimeFunction *>(getLanguageSpecificData());
|
|
}
|
|
void *getExceptionData() {
|
|
return reinterpret_cast<void *>(reinterpret_cast<uint64_t *>(
|
|
getLanguageSpecificData())+1);
|
|
}
|
|
};
|
|
|
|
|
|
} // End of namespace Win64EH
|
|
} // End of namespace llvm
|
|
|
|
#endif
|