| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | #include "clang/Basic/Diagnostic.h" |
| 15 | #include "clang/Basic/LLVM.h" |
| 16 | #include "clang/Driver/Compilation.h" |
| 17 | #include "clang/Driver/Driver.h" |
| 18 | #include "llvm/ADT/ArrayRef.h" |
| 19 | #include "llvm/ADT/STLExtras.h" |
| 20 | #include "llvm/Support/FileSystem.h" |
| 21 | #include "llvm/Support/TargetSelect.h" |
| 22 | #include "llvm/Support/VirtualFileSystem.h" |
| 23 | #include "llvm/Support/YAMLTraits.h" |
| 24 | #include "llvm/Support/raw_ostream.h" |
| 25 | |
| 26 | using namespace clang; |
| 27 | |
| 28 | namespace { |
| 29 | |
| 30 | struct UnsavedFileHash { |
| 31 | std::string Name; |
| 32 | std::string MD5; |
| 33 | }; |
| 34 | |
| 35 | struct ClangInvocationInfo { |
| 36 | std::string Toolchain; |
| 37 | std::string LibclangOperation; |
| 38 | std::string LibclangOptions; |
| 39 | std::vector<std::string> Arguments; |
| 40 | std::vector<std::string> InvocationArguments; |
| 41 | std::vector<UnsavedFileHash> UnsavedFileHashes; |
| 42 | bool Dump = false; |
| 43 | }; |
| 44 | |
| 45 | } |
| 46 | |
| 47 | LLVM_YAML_IS_SEQUENCE_VECTOR(UnsavedFileHash) |
| 48 | |
| 49 | namespace llvm { |
| 50 | namespace yaml { |
| 51 | |
| 52 | template <> struct MappingTraits<UnsavedFileHash> { |
| 53 | static void mapping(IO &IO, UnsavedFileHash &Info) { |
| 54 | IO.mapRequired("name", Info.Name); |
| 55 | IO.mapRequired("md5", Info.MD5); |
| 56 | } |
| 57 | }; |
| 58 | |
| 59 | template <> struct MappingTraits<ClangInvocationInfo> { |
| 60 | static void mapping(IO &IO, ClangInvocationInfo &Info) { |
| 61 | IO.mapRequired("toolchain", Info.Toolchain); |
| 62 | IO.mapOptional("libclang.operation", Info.LibclangOperation); |
| 63 | IO.mapOptional("libclang.opts", Info.LibclangOptions); |
| 64 | IO.mapRequired("args", Info.Arguments); |
| 65 | IO.mapOptional("invocation-args", Info.InvocationArguments); |
| 66 | IO.mapOptional("unsaved_file_hashes", Info.UnsavedFileHashes); |
| 67 | } |
| 68 | }; |
| 69 | |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | static std::string generateReproducerMetaInfo(const ClangInvocationInfo &Info) { |
| 74 | std::string Result; |
| 75 | llvm::raw_string_ostream OS(Result); |
| 76 | OS << '{'; |
| 77 | bool NeedComma = false; |
| 78 | auto EmitKey = [&](StringRef Key) { |
| 79 | if (NeedComma) |
| 80 | OS << ", "; |
| 81 | NeedComma = true; |
| 82 | OS << '"' << Key << "\": "; |
| 83 | }; |
| 84 | auto EmitStringKey = [&](StringRef Key, StringRef Value) { |
| 85 | if (Value.empty()) |
| 86 | return; |
| 87 | EmitKey(Key); |
| 88 | OS << '"' << Value << '"'; |
| 89 | }; |
| 90 | EmitStringKey("libclang.operation", Info.LibclangOperation); |
| 91 | EmitStringKey("libclang.opts", Info.LibclangOptions); |
| 92 | if (!Info.InvocationArguments.empty()) { |
| 93 | EmitKey("invocation-args"); |
| 94 | OS << '['; |
| 95 | for (const auto &Arg : llvm::enumerate(Info.InvocationArguments)) { |
| 96 | if (Arg.index()) |
| 97 | OS << ','; |
| 98 | OS << '"' << Arg.value() << '"'; |
| 99 | } |
| 100 | OS << ']'; |
| 101 | } |
| 102 | OS << '}'; |
| 103 | |
| 104 | if (Info.Dump) |
| 105 | llvm::outs() << "REPRODUCER METAINFO: " << OS.str() << "\n"; |
| 106 | return std::move(OS.str()); |
| 107 | } |
| 108 | |
| 109 | |
| 110 | static llvm::Optional<driver::Driver::CompilationDiagnosticReport> |
| 111 | generateReproducerForInvocationArguments(ArrayRef<const char *> Argv, |
| 112 | const ClangInvocationInfo &Info) { |
| 113 | using namespace driver; |
| 114 | auto TargetAndMode = ToolChain::getTargetAndModeFromProgramName(Argv[0]); |
| 115 | |
| 116 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions; |
| 117 | |
| 118 | IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
| 119 | DiagnosticsEngine Diags(DiagID, &*DiagOpts, new IgnoringDiagConsumer()); |
| 120 | ProcessWarningOptions(Diags, *DiagOpts, ); |
| 121 | Driver TheDriver(Argv[0], llvm::sys::getDefaultTargetTriple(), Diags); |
| 122 | TheDriver.setTargetAndMode(TargetAndMode); |
| 123 | |
| 124 | std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(Argv)); |
| 125 | if (C && !C->containsError()) { |
| 126 | for (const auto &J : C->getJobs()) { |
| 127 | if (const Command *Cmd = dyn_cast<Command>(&J)) { |
| 128 | Driver::CompilationDiagnosticReport Report; |
| 129 | TheDriver.generateCompilationDiagnostics( |
| 130 | *C, *Cmd, generateReproducerMetaInfo(Info), &Report); |
| 131 | return Report; |
| 132 | } |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | return None; |
| 137 | } |
| 138 | |
| 139 | std::string GetExecutablePath(const char *Argv0, bool CanonicalPrefixes); |
| 140 | |
| 141 | static void printReproducerInformation( |
| 142 | llvm::raw_ostream &OS, const ClangInvocationInfo &Info, |
| 143 | const driver::Driver::CompilationDiagnosticReport &Report) { |
| 144 | OS << "REPRODUCER:\n"; |
| 145 | OS << "{\n"; |
| 146 | OS << R"("files":[)"; |
| 147 | for (const auto &File : llvm::enumerate(Report.TemporaryFiles)) { |
| 148 | if (File.index()) |
| 149 | OS << ','; |
| 150 | OS << '"' << File.value() << '"'; |
| 151 | } |
| 152 | OS << "]\n}\n"; |
| 153 | } |
| 154 | |
| 155 | int cc1gen_reproducer_main(ArrayRef<const char *> Argv, const char *Argv0, |
| 156 | void *MainAddr) { |
| 157 | if (Argv.size() < 1) { |
| 158 | llvm::errs() << "error: missing invocation file\n"; |
| 159 | return 1; |
| 160 | } |
| 161 | |
| 162 | StringRef Input = Argv[0]; |
| 163 | llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = |
| 164 | llvm::MemoryBuffer::getFile(Input); |
| 165 | if (!Buffer) { |
| 166 | llvm::errs() << "error: failed to read " << Input << ": " |
| 167 | << Buffer.getError().message() << "\n"; |
| 168 | return 1; |
| 169 | } |
| 170 | llvm::yaml::Input YAML(Buffer.get()->getBuffer()); |
| 171 | ClangInvocationInfo InvocationInfo; |
| 172 | YAML >> InvocationInfo; |
| 173 | if (Argv.size() > 1 && Argv[1] == StringRef("-v")) |
| 174 | InvocationInfo.Dump = true; |
| 175 | |
| 176 | |
| 177 | std::vector<const char *> DriverArgs; |
| 178 | for (const auto &Arg : InvocationInfo.Arguments) |
| 179 | DriverArgs.push_back(Arg.c_str()); |
| 180 | std::string Path = GetExecutablePath(Argv0, ); |
| 181 | DriverArgs[0] = Path.c_str(); |
| 182 | llvm::Optional<driver::Driver::CompilationDiagnosticReport> Report = |
| 183 | generateReproducerForInvocationArguments(DriverArgs, InvocationInfo); |
| 184 | |
| 185 | |
| 186 | int Result = 1; |
| 187 | if (Report) { |
| 188 | printReproducerInformation(llvm::outs(), InvocationInfo, *Report); |
| 189 | Result = 0; |
| 190 | } |
| 191 | |
| 192 | |
| 193 | llvm::sys::fs::remove(Input); |
| 194 | return Result; |
| 195 | } |
| 196 | |