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llvm-mirror/lib/MC/MCTargetOptionsCommandFlags.cpp
Igor Kudrin 02872c9d70 [MC] Add --dwarf64 to generate DWARF64 debug info [1/7]
The patch adds an option `--dwarf64` to instruct a tool to generate
debug information in the 64-bit DWARF format. There is no real
implementation yet, only a few compatibility checks.

Differential Revision: https://reviews.llvm.org/D81143
2020-06-16 15:50:13 +07:00

115 lines
4.4 KiB
C++

//===-- MCTargetOptionsCommandFlags.cpp --------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file contains machine code-specific flags that are shared between
// different command line tools.
//
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCTargetOptionsCommandFlags.h"
#include "llvm/MC/MCTargetOptions.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
#define MCOPT(TY, NAME) \
static cl::opt<TY> *NAME##View; \
TY llvm::mc::get##NAME() { \
assert(NAME##View && "RegisterMCTargetOptionsFlags not created."); \
return *NAME##View; \
}
#define MCOPT_EXP(TY, NAME) \
MCOPT(TY, NAME) \
Optional<TY> llvm::mc::getExplicit##NAME() { \
if (NAME##View->getNumOccurrences()) { \
TY res = *NAME##View; \
return res; \
} \
return None; \
}
MCOPT_EXP(bool, RelaxAll)
MCOPT(bool, IncrementalLinkerCompatible)
MCOPT(int, DwarfVersion)
MCOPT(bool, Dwarf64)
MCOPT(bool, ShowMCInst)
MCOPT(bool, FatalWarnings)
MCOPT(bool, NoWarn)
MCOPT(bool, NoDeprecatedWarn)
MCOPT(std::string, ABIName)
llvm::mc::RegisterMCTargetOptionsFlags::RegisterMCTargetOptionsFlags() {
#define MCBINDOPT(NAME) \
do { \
NAME##View = std::addressof(NAME); \
} while (0)
static cl::opt<bool> RelaxAll(
"mc-relax-all", cl::desc("When used with filetype=obj, relax all fixups "
"in the emitted object file"));
MCBINDOPT(RelaxAll);
static cl::opt<bool> IncrementalLinkerCompatible(
"incremental-linker-compatible",
cl::desc(
"When used with filetype=obj, "
"emit an object file which can be used with an incremental linker"));
MCBINDOPT(IncrementalLinkerCompatible);
static cl::opt<int> DwarfVersion("dwarf-version", cl::desc("Dwarf version"),
cl::init(0));
MCBINDOPT(DwarfVersion);
static cl::opt<bool> Dwarf64(
"dwarf64",
cl::desc("Generate debugging info in the 64-bit DWARF format"));
MCBINDOPT(Dwarf64);
static cl::opt<bool> ShowMCInst(
"asm-show-inst",
cl::desc("Emit internal instruction representation to assembly file"));
MCBINDOPT(ShowMCInst);
static cl::opt<bool> FatalWarnings("fatal-warnings",
cl::desc("Treat warnings as errors"));
MCBINDOPT(FatalWarnings);
static cl::opt<bool> NoWarn("no-warn", cl::desc("Suppress all warnings"));
static cl::alias NoWarnW("W", cl::desc("Alias for --no-warn"),
cl::aliasopt(NoWarn));
MCBINDOPT(NoWarn);
static cl::opt<bool> NoDeprecatedWarn(
"no-deprecated-warn", cl::desc("Suppress all deprecated warnings"));
MCBINDOPT(NoDeprecatedWarn);
static cl::opt<std::string> ABIName(
"target-abi", cl::Hidden,
cl::desc("The name of the ABI to be targeted from the backend."),
cl::init(""));
MCBINDOPT(ABIName);
#undef MCBINDOPT
}
MCTargetOptions llvm::mc::InitMCTargetOptionsFromFlags() {
MCTargetOptions Options;
Options.MCRelaxAll = getRelaxAll();
Options.MCIncrementalLinkerCompatible = getIncrementalLinkerCompatible();
Options.Dwarf64 = getDwarf64();
Options.DwarfVersion = getDwarfVersion();
Options.ShowMCInst = getShowMCInst();
Options.ABIName = getABIName();
Options.MCFatalWarnings = getFatalWarnings();
Options.MCNoWarn = getNoWarn();
Options.MCNoDeprecatedWarn = getNoDeprecatedWarn();
return Options;
}