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//===--- unittests/DebugInfo/DWARF/DwarfUtils.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
//
//===----------------------------------------------------------------------===//
#include "DwarfUtils.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/TargetParser/Host.h"
#include "llvm/TargetParser/Triple.h"
using namespace llvm;
static void initLLVMIfNeeded() {
static bool gInitialized = false;
if (!gInitialized) {
gInitialized = true;
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
}
}
Triple llvm::dwarf::utils::getNormalizedDefaultTargetTriple() {
Triple T(Triple::normalize(sys::getDefaultTargetTriple()));
return T;
}
Triple llvm::dwarf::utils::getDefaultTargetTripleForAddrSize(uint8_t AddrSize) {
Triple T = getNormalizedDefaultTargetTriple();
assert((AddrSize == 4 || AddrSize == 8) &&
"Only 32-bit/64-bit address size variants are supported");
// If a 32-bit/64-bit address size was specified, try to convert the triple
// if it is for the wrong variant.
if (AddrSize == 8 && T.isArch32Bit())
return T.get64BitArchVariant();
if (AddrSize == 4 && T.isArch64Bit())
return T.get32BitArchVariant();
return T;
}
bool llvm::dwarf::utils::isConfigurationSupported(Triple &T) {
initLLVMIfNeeded();
std::string Err;
const Target *TheTarget = TargetRegistry::lookupTarget(T, Err);
return TheTarget && TheTarget->hasMCAsmBackend();
}
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