ToolChains.cpp revision 3917608370583fa30c466b6c3893448229aea9ad 
1//===--- ToolChains.cpp - ToolChain Implementations ---------------------*-===//
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 "ToolChains.h"
11
12using namespace clang::driver;
13using namespace clang::driver::toolchains;
14
15/// Generic_GCC - A tool chain using the 'gcc' command to perform
16/// all subcommands; this relies on gcc translating the majority of
17/// command line options.
18
19Generic_GCC::~Generic_GCC() {
20  // Free tool implementations.
21  for (llvm::DenseMap<unsigned, Tool*>::iterator
22         it = Tools.begin(), ie = Tools.end(); it != ie; ++it)
23    delete it->second;
24}
25
26Tool &Generic_GCC::SelectTool(const Compilation &C,
27                              const JobAction &JA) const {
28  Action::ActionClass Key;
29  if (ShouldUseClangCompiler(C, JA))
30    Key = Action::AnalyzeJobClass;
31  else
32    Key = JA.getKind();
33
34  Tool *&T = Tools[Key];
35  if (!T) {
36    switch (Key) {
37    default:
38      assert(0 && "Invalid tool kind.");
39    case Action::PreprocessJobClass:
40      T = new tools::gcc::Preprocess(*this); break;
41    case Action::PrecompileJobClass:
42      T = new tools::gcc::Precompile(*this); break;
43    case Action::AnalyzeJobClass:
44      T = new tools::Clang(*this); break;
45    case Action::CompileJobClass:
46      T = new tools::gcc::Compile(*this); break;
47    case Action::AssembleJobClass:
48      T = new tools::gcc::Assemble(*this); break;
49    case Action::LinkJobClass:
50      T = new tools::gcc::Link(*this); break;
51    }
52  }
53
54  return *T;
55}
56
57bool Generic_GCC::IsMathErrnoDefault() const {
58  return true;
59}
60
61bool Generic_GCC::IsUnwindTablesDefault() const {
62  // FIXME: Gross; we should probably have some separate target definition,
63  // possibly even reusing the one in clang.
64  return getArchName() == "x86_64";
65}
66
67const char *Generic_GCC::GetDefaultRelocationModel() const {
68  return "static";
69}
70
71const char *Generic_GCC::GetForcedPicModel() const {
72  return 0;
73}
74
75
76