unittests/DebugInfo/DWARF/DwarfUtils.cpp

   1 //===--- unittests/DebugInfo/DWARF/DwarfUtils.cpp ---------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "DwarfUtils.h"
  10 #include "llvm/ADT/Triple.h"
  11 #include "llvm/Config/llvm-config.h"
  12 #include "llvm/Support/TargetRegistry.h"
  13 #include "llvm/Support/TargetSelect.h"
  14
  15 using namespace llvm;
  16
  17 static void initLLVMIfNeeded() {
  18   static bool gInitialized = false;
  19   if (!gInitialized) {
  20     gInitialized = true;
  21     InitializeAllTargets();
  22     InitializeAllTargetMCs();
  23     InitializeAllAsmPrinters();
  24     InitializeAllAsmParsers();
  25   }
  26 }
  27
  28 Triple llvm::dwarf::utils::getHostTripleForAddrSize(uint8_t AddrSize) {
  29   Triple T(Triple::normalize(LLVM_HOST_TRIPLE));
  30
  31   if (AddrSize == 8 && T.isArch32Bit())
  32     return T.get64BitArchVariant();
  33   if (AddrSize == 4 && T.isArch64Bit())
  34     return T.get32BitArchVariant();
  35   return T;
  36 }
  37
  38 bool llvm::dwarf::utils::isConfigurationSupported(Triple &T) {
  39   initLLVMIfNeeded();
  40   std::string Err;
  41   return TargetRegistry::lookupTarget(T.getTriple(), Err);
  42 }