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llvm-mirror/include/llvm/MC/MCTargetOptions.h
David Blaikie 8ad792d2de Move Split DWARF handling to an MC option/command line argument rather than using metadata
Since Split DWARF needs to name the actual .dwo file that is generated,
it can't be known at the time the llvm::Module is produced as it may be
merged with other Modules before the object is generated and that object
may be generated with any name.

By passing the Split DWARF file name when LLVM is producing object code
the .dwo file name in the object file can match correctly.

The support for Split DWARF for implicit modules remains the same -
using metadata to store the dwo name and dwo id so that potentially
multiple skeleton CUs referring to different dwo files can be generated
from one llvm::Module.

llvm-svn: 301062
2017-04-21 23:35:26 +00:00

74 lines
1.8 KiB
C++

//===- MCTargetOptions.h - MC Target Options --------------------*- 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_MCTARGETOPTIONS_H
#define LLVM_MC_MCTARGETOPTIONS_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
};
class StringRef;
class MCTargetOptions {
public:
enum AsmInstrumentation {
AsmInstrumentationNone,
AsmInstrumentationAddress
};
/// Enables AddressSanitizer instrumentation at machine level.
bool SanitizeAddress : 1;
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 MCPIECopyRelocations : 1;
bool ShowMCEncoding : 1;
bool ShowMCInst : 1;
bool AsmVerbose : 1;
/// Preserve Comments in Assembly.
bool PreserveAsmComments : 1;
int DwarfVersion = 0;
std::string ABIName;
std::string SplitDwarfFile;
/// 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;
};
} // end namespace llvm
#endif // LLVM_MC_MCTARGETOPTIONS_H