| //===--- 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.getTriple(), Err); |
| return TheTarget && TheTarget->hasMCAsmBackend(); |
| } |