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llvm-mirror/include/llvm/MC/MCTargetOptions.h
jasonliu 60c6f78bef [XCOFF][AIX] Generate LSDA data and compact unwind section on AIX
Summary:
AIX uses the existing EH infrastructure in clang and llvm.
The major differences would be
1. AIX do not have CFI instructions.
2. AIX uses a new personality routine, named __xlcxx_personality_v1.
   It doesn't use the GCC personality rountine, because the
   interoperability is not there yet on AIX.
3. AIX do not use eh_frame sections. Instead, it would use a eh_info
section (compat unwind section) to store the information about
personality routine and LSDA data address.

Reviewed By: daltenty, hubert.reinterpretcast

Differential Revision: https://reviews.llvm.org/D91455
2020-12-02 18:42:44 +00:00

88 lines
2.3 KiB
C++

//===- MCTargetOptions.h - MC Target Options --------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCTARGETOPTIONS_H
#define LLVM_MC_MCTARGETOPTIONS_H
#include "llvm/ADT/ArrayRef.h"
#include <string>
#include <vector>
namespace llvm {
enum class ExceptionHandling {
None, ///< No exception support
DwarfCFI, ///< DWARF-like instruction based exceptions
SjLj, ///< setjmp/longjmp based exceptions
ARM, ///< ARM EHABI
WinEH, ///< Windows Exception Handling
Wasm, ///< WebAssembly Exception Handling
AIX, ///< AIX Exception Handling
};
enum class DebugCompressionType {
None, ///< No compression
GNU, ///< zlib-gnu style compression
Z, ///< zlib style complession
};
class StringRef;
class MCTargetOptions {
public:
enum AsmInstrumentation {
AsmInstrumentationNone,
AsmInstrumentationAddress
};
bool MCRelaxAll : 1;
bool MCNoExecStack : 1;
bool MCFatalWarnings : 1;
bool MCNoWarn : 1;
bool MCNoDeprecatedWarn : 1;
bool MCSaveTempLabels : 1;
bool MCUseDwarfDirectory : 1;
bool MCIncrementalLinkerCompatible : 1;
bool ShowMCEncoding : 1;
bool ShowMCInst : 1;
bool AsmVerbose : 1;
/// Preserve Comments in Assembly.
bool PreserveAsmComments : 1;
bool Dwarf64 : 1;
int DwarfVersion = 0;
std::string ABIName;
std::string AssemblyLanguage;
std::string SplitDwarfFile;
const char *Argv0 = nullptr;
ArrayRef<const char *> CommandLineArgs;
/// Additional paths to search for `.include` directives when using the
/// integrated assembler.
std::vector<std::string> IASSearchPaths;
MCTargetOptions();
/// getABIName - If this returns a non-empty string this represents the
/// textual name of the ABI that we want the backend to use, e.g. o32, or
/// aapcs-linux.
StringRef getABIName() const;
/// getAssemblyLanguage - If this returns a non-empty string this represents
/// the textual name of the assembly language that we will use for this
/// target, e.g. masm.
StringRef getAssemblyLanguage() const;
};
} // end namespace llvm
#endif // LLVM_MC_MCTARGETOPTIONS_H