1 //===--- unittests/DebugInfo/DWARF/DwarfUtils.cpp ---------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "DwarfUtils.h"
11 #include "llvm/ADT/Triple.h"
12 #include "llvm/Config/llvm-config.h"
13 #include "llvm/Support/TargetRegistry.h"
14 #include "llvm/Support/TargetSelect.h"
15 
16 using namespace llvm;
17 
initLLVMIfNeeded()18 static void initLLVMIfNeeded() {
19   static bool gInitialized = false;
20   if (!gInitialized) {
21     gInitialized = true;
22     InitializeAllTargets();
23     InitializeAllTargetMCs();
24     InitializeAllAsmPrinters();
25     InitializeAllAsmParsers();
26   }
27 }
28 
getHostTripleForAddrSize(uint8_t AddrSize)29 Triple llvm::dwarf::utils::getHostTripleForAddrSize(uint8_t AddrSize) {
30   Triple T(Triple::normalize(LLVM_HOST_TRIPLE));
31 
32   if (AddrSize == 8 && T.isArch32Bit())
33     return T.get64BitArchVariant();
34   if (AddrSize == 4 && T.isArch64Bit())
35     return T.get32BitArchVariant();
36   return T;
37 }
38 
isConfigurationSupported(Triple & T)39 bool llvm::dwarf::utils::isConfigurationSupported(Triple &T) {
40   initLLVMIfNeeded();
41   std::string Err;
42   return TargetRegistry::lookupTarget(T.getTriple(), Err);
43 }
44