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| 12 | |
| 13 | #include "CIndexer.h" |
| 14 | #include "CXString.h" |
| 15 | #include "clang/Basic/LLVM.h" |
| 16 | #include "clang/Basic/Version.h" |
| 17 | #include "clang/Driver/Driver.h" |
| 18 | #include "llvm/ADT/STLExtras.h" |
| 19 | #include "llvm/ADT/SmallString.h" |
| 20 | #include "llvm/Support/MD5.h" |
| 21 | #include "llvm/Support/MutexGuard.h" |
| 22 | #include "llvm/Support/Path.h" |
| 23 | #include "llvm/Support/Program.h" |
| 24 | #include "llvm/Support/YAMLParser.h" |
| 25 | #include <cstdio> |
| 26 | |
| 27 | #ifdef __CYGWIN__ |
| 28 | #include <cygwin/version.h> |
| 29 | #include <sys/cygwin.h> |
| 30 | #define _WIN32 1 |
| 31 | #endif |
| 32 | |
| 33 | #ifdef _WIN32 |
| 34 | #include <windows.h> |
| 35 | #elif defined(_AIX) |
| 36 | #include <errno.h> |
| 37 | #include <sys/ldr.h> |
| 38 | #else |
| 39 | #include <dlfcn.h> |
| 40 | #endif |
| 41 | |
| 42 | using namespace clang; |
| 43 | |
| 44 | #ifdef _AIX |
| 45 | namespace clang { |
| 46 | namespace { |
| 47 | |
| 48 | template <typename LibClangPathType> |
| 49 | void getClangResourcesPathImplAIX(LibClangPathType &LibClangPath) { |
| 50 | int PrevErrno = errno; |
| 51 | |
| 52 | size_t BufSize = 2048u; |
| 53 | std::unique_ptr<char[]> Buf; |
| 54 | while (true) { |
| 55 | Buf = llvm::make_unique<char []>(BufSize); |
| 56 | errno = 0; |
| 57 | int Ret = loadquery(L_GETXINFO, Buf.get(), (unsigned int)BufSize); |
| 58 | if (Ret != -1) |
| 59 | break; |
| 60 | if (errno != ENOMEM) |
| 61 | llvm_unreachable("Encountered an unexpected loadquery() failure"); |
| 62 | |
| 63 | |
| 64 | if ((BufSize & ~((-1u) >> 1u)) != 0u) |
| 65 | llvm::report_fatal_error("BufSize needed for loadquery() too large"); |
| 66 | |
| 67 | Buf.release(); |
| 68 | BufSize <<= 1u; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | uint64_t EntryAddr = |
| 73 | reinterpret_cast<uintptr_t &>(clang_createTranslationUnit); |
| 74 | |
| 75 | |
| 76 | ld_xinfo *CurInfo = reinterpret_cast<ld_xinfo *>(Buf.get()); |
| 77 | while (true) { |
| 78 | uint64_t CurTextStart = (uint64_t)CurInfo->ldinfo_textorg; |
| 79 | uint64_t CurTextEnd = CurTextStart + CurInfo->ldinfo_textsize; |
| 80 | if (CurTextStart <= EntryAddr && EntryAddr < CurTextEnd) |
| 81 | break; |
| 82 | |
| 83 | if (CurInfo->ldinfo_next == 0u) |
| 84 | llvm::report_fatal_error("Cannot locate entry point in " |
| 85 | "the loadquery() results"); |
| 86 | CurInfo = reinterpret_cast<ld_xinfo *>(reinterpret_cast<char *>(CurInfo) + |
| 87 | CurInfo->ldinfo_next); |
| 88 | } |
| 89 | |
| 90 | LibClangPath += reinterpret_cast<char *>(CurInfo) + CurInfo->ldinfo_filename; |
| 91 | errno = PrevErrno; |
| 92 | } |
| 93 | |
| 94 | } |
| 95 | } |
| 96 | #endif |
| 97 | |
| 98 | const std::string &CIndexer::getClangResourcesPath() { |
| 99 | |
| 100 | if (!ResourcesPath.empty()) |
| 101 | return ResourcesPath; |
| 102 | |
| 103 | SmallString<128> LibClangPath; |
| 104 | |
| 105 | |
| 106 | #ifdef _WIN32 |
| 107 | MEMORY_BASIC_INFORMATION mbi; |
| 108 | char path[MAX_PATH]; |
| 109 | VirtualQuery((void *)(uintptr_t)clang_createTranslationUnit, &mbi, |
| 110 | sizeof(mbi)); |
| 111 | GetModuleFileNameA((HINSTANCE)mbi.AllocationBase, path, MAX_PATH); |
| 112 | |
| 113 | #ifdef __CYGWIN__ |
| 114 | char w32path[MAX_PATH]; |
| 115 | strcpy(w32path, path); |
| 116 | #if CYGWIN_VERSION_API_MAJOR > 0 || CYGWIN_VERSION_API_MINOR >= 181 |
| 117 | cygwin_conv_path(CCP_WIN_A_TO_POSIX, w32path, path, MAX_PATH); |
| 118 | #else |
| 119 | cygwin_conv_to_full_posix_path(w32path, path); |
| 120 | #endif |
| 121 | #endif |
| 122 | |
| 123 | LibClangPath += path; |
| 124 | #elif defined(_AIX) |
| 125 | getClangResourcesPathImplAIX(LibClangPath); |
| 126 | #else |
| 127 | |
| 128 | Dl_info info; |
| 129 | if (dladdr((void *)(uintptr_t)clang_createTranslationUnit, &info) == 0) |
| 130 | llvm_unreachable("Call to dladdr() failed"); |
| 131 | |
| 132 | |
| 133 | LibClangPath += info.dli_fname; |
| 134 | #endif |
| 135 | |
| 136 | |
| 137 | ResourcesPath = driver::Driver::GetResourcesPath(LibClangPath); |
| 138 | return ResourcesPath; |
| 139 | } |
| 140 | |
| 141 | StringRef CIndexer::getClangToolchainPath() { |
| 142 | if (!ToolchainPath.empty()) |
| 143 | return ToolchainPath; |
| 144 | StringRef ResourcePath = getClangResourcesPath(); |
| 145 | ToolchainPath = llvm::sys::path::parent_path( |
| 146 | llvm::sys::path::parent_path(llvm::sys::path::parent_path(ResourcePath))); |
| 147 | return ToolchainPath; |
| 148 | } |
| 149 | |
| 150 | LibclangInvocationReporter::LibclangInvocationReporter( |
| 151 | CIndexer &Idx, OperationKind Op, unsigned ParseOptions, |
| 152 | llvm::ArrayRef<const char *> Args, |
| 153 | llvm::ArrayRef<std::string> InvocationArgs, |
| 154 | llvm::ArrayRef<CXUnsavedFile> UnsavedFiles) { |
| 155 | StringRef Path = Idx.getInvocationEmissionPath(); |
| 156 | if (Path.empty()) |
| 157 | return; |
| 158 | |
| 159 | |
| 160 | SmallString<256> TempPath; |
| 161 | TempPath = Path; |
| 162 | llvm::sys::path::append(TempPath, "libclang-%%%%%%%%%%%%"); |
| 163 | int FD; |
| 164 | if (llvm::sys::fs::createUniqueFile(TempPath, FD, TempPath)) |
| 165 | return; |
| 166 | File = std::string(TempPath.begin(), TempPath.end()); |
| 167 | llvm::raw_fd_ostream OS(FD, ); |
| 168 | |
| 169 | |
| 170 | auto WriteStringKey = [&OS](StringRef Key, StringRef Value) { |
| 171 | OS << R"(")" << Key << R"(":")"; |
| 172 | OS << llvm::yaml::escape(Value) << '"'; |
| 173 | }; |
| 174 | OS << '{'; |
| 175 | WriteStringKey("toolchain", Idx.getClangToolchainPath()); |
| 176 | OS << ','; |
| 177 | WriteStringKey("libclang.operation", |
| 178 | Op == OperationKind::ParseOperation ? "parse" : "complete"); |
| 179 | OS << ','; |
| 180 | OS << R"("libclang.opts":)" << ParseOptions; |
| 181 | OS << ','; |
| 182 | OS << R"("args":[)"; |
| 183 | for (const auto &I : llvm::enumerate(Args)) { |
| 184 | if (I.index()) |
| 185 | OS << ','; |
| 186 | OS << '"' << llvm::yaml::escape(I.value()) << '"'; |
| 187 | } |
| 188 | if (!InvocationArgs.empty()) { |
| 189 | OS << R"(],"invocation-args":[)"; |
| 190 | for (const auto &I : llvm::enumerate(InvocationArgs)) { |
| 191 | if (I.index()) |
| 192 | OS << ','; |
| 193 | OS << '"' << llvm::yaml::escape(I.value()) << '"'; |
| 194 | } |
| 195 | } |
| 196 | if (!UnsavedFiles.empty()) { |
| 197 | OS << R"(],"unsaved_file_hashes":[)"; |
| 198 | for (const auto &UF : llvm::enumerate(UnsavedFiles)) { |
| 199 | if (UF.index()) |
| 200 | OS << ','; |
| 201 | OS << '{'; |
| 202 | WriteStringKey("name", UF.value().Filename); |
| 203 | OS << ','; |
| 204 | llvm::MD5 Hash; |
| 205 | Hash.update(getContents(UF.value())); |
| 206 | llvm::MD5::MD5Result Result; |
| 207 | Hash.final(Result); |
| 208 | SmallString<32> Digest = Result.digest(); |
| 209 | WriteStringKey("md5", Digest); |
| 210 | OS << '}'; |
| 211 | } |
| 212 | } |
| 213 | OS << "]}"; |
| 214 | } |
| 215 | |
| 216 | LibclangInvocationReporter::~LibclangInvocationReporter() { |
| 217 | if (!File.empty()) |
| 218 | llvm::sys::fs::remove(File); |
| 219 | } |
| 220 | |