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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 | |