Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 1 | //===-- driver.cpp - Clang GCC-Compatible Driver --------------------------===// |
| 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 | // |
Daniel Dunbar | b2da933 | 2009-03-03 05:55:11 +0000 | [diff] [blame] | 10 | // This is the entry point to the clang driver; it is a thin wrapper |
| 11 | // for functionality in the Driver clang library. |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
Jordan Rose | a7d0384 | 2013-02-08 22:30:41 +0000 | [diff] [blame] | 15 | #include "clang/Basic/CharInfo.h" |
Douglas Gregor | 811db4e | 2012-10-23 22:26:28 +0000 | [diff] [blame] | 16 | #include "clang/Basic/DiagnosticOptions.h" |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 17 | #include "clang/Driver/Compilation.h" |
| 18 | #include "clang/Driver/Driver.h" |
Richard Smith | 940a6d7 | 2012-12-25 21:56:27 +0000 | [diff] [blame] | 19 | #include "clang/Driver/DriverDiagnostic.h" |
Chandler Carruth | cc0694c | 2012-12-04 09:25:21 +0000 | [diff] [blame] | 20 | #include "clang/Driver/Options.h" |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 21 | #include "clang/Frontend/CompilerInvocation.h" |
Daniel Dunbar | 12ee380 | 2010-02-25 03:23:43 +0000 | [diff] [blame] | 22 | #include "clang/Frontend/TextDiagnosticPrinter.h" |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 23 | #include "clang/Frontend/Utils.h" |
Chris Lattner | ce6c42f | 2011-03-23 04:04:01 +0000 | [diff] [blame] | 24 | #include "llvm/ADT/ArrayRef.h" |
Chandler Carruth | 5553d0d | 2014-01-07 11:51:46 +0000 | [diff] [blame] | 25 | #include "llvm/ADT/STLExtras.h" |
Daniel Dunbar | d9b80c2 | 2009-03-18 02:11:26 +0000 | [diff] [blame] | 26 | #include "llvm/ADT/SmallString.h" |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 27 | #include "llvm/ADT/SmallVector.h" |
Reid Kleckner | 898229a | 2013-06-14 17:17:23 +0000 | [diff] [blame] | 28 | #include "llvm/Option/ArgList.h" |
| 29 | #include "llvm/Option/OptTable.h" |
| 30 | #include "llvm/Option/Option.h" |
Reid Kleckner | 61b23b7 | 2013-07-18 20:00:53 +0000 | [diff] [blame] | 31 | #include "llvm/Support/CommandLine.h" |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 32 | #include "llvm/Support/ErrorHandling.h" |
Michael J. Spencer | 740857f | 2010-12-21 16:45:57 +0000 | [diff] [blame] | 33 | #include "llvm/Support/FileSystem.h" |
Chandler Carruth | cc0694c | 2012-12-04 09:25:21 +0000 | [diff] [blame] | 34 | #include "llvm/Support/Host.h" |
Daniel Dunbar | 2608c54 | 2009-03-18 01:38:48 +0000 | [diff] [blame] | 35 | #include "llvm/Support/ManagedStatic.h" |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 36 | #include "llvm/Support/MemoryBuffer.h" |
Michael J. Spencer | 8aaf499 | 2010-11-29 18:12:39 +0000 | [diff] [blame] | 37 | #include "llvm/Support/Path.h" |
Chandler Carruth | cc0694c | 2012-12-04 09:25:21 +0000 | [diff] [blame] | 38 | #include "llvm/Support/PrettyStackTrace.h" |
David Majnemer | 3f8f8c9 | 2013-10-07 07:33:27 +0000 | [diff] [blame] | 39 | #include "llvm/Support/Process.h" |
Michael J. Spencer | 8aaf499 | 2010-11-29 18:12:39 +0000 | [diff] [blame] | 40 | #include "llvm/Support/Program.h" |
Chandler Carruth | cc0694c | 2012-12-04 09:25:21 +0000 | [diff] [blame] | 41 | #include "llvm/Support/Regex.h" |
Michael J. Spencer | 8aaf499 | 2010-11-29 18:12:39 +0000 | [diff] [blame] | 42 | #include "llvm/Support/Signals.h" |
Evan Cheng | 494eb06 | 2011-08-24 18:09:14 +0000 | [diff] [blame] | 43 | #include "llvm/Support/TargetRegistry.h" |
| 44 | #include "llvm/Support/TargetSelect.h" |
Chandler Carruth | cc0694c | 2012-12-04 09:25:21 +0000 | [diff] [blame] | 45 | #include "llvm/Support/Timer.h" |
| 46 | #include "llvm/Support/raw_ostream.h" |
Michael J. Spencer | f25faaa | 2010-12-09 17:36:38 +0000 | [diff] [blame] | 47 | #include "llvm/Support/system_error.h" |
Ahmed Charles | dfca6f9 | 2014-03-09 11:36:40 +0000 | [diff] [blame] | 48 | #include <memory> |
Daniel Dunbar | c0b3e95 | 2009-03-12 08:55:43 +0000 | [diff] [blame] | 49 | using namespace clang; |
Daniel Dunbar | b2cd66b | 2009-03-04 20:49:20 +0000 | [diff] [blame] | 50 | using namespace clang::driver; |
Reid Kleckner | 898229a | 2013-06-14 17:17:23 +0000 | [diff] [blame] | 51 | using namespace llvm::opt; |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 52 | |
Rafael Espindola | 9678d27 | 2013-06-26 05:03:40 +0000 | [diff] [blame] | 53 | std::string GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) { |
Rafael Espindola | 73d4637 | 2009-12-04 19:31:58 +0000 | [diff] [blame] | 54 | if (!CanonicalPrefixes) |
Rafael Espindola | 9678d27 | 2013-06-26 05:03:40 +0000 | [diff] [blame] | 55 | return Argv0; |
Rafael Espindola | 73d4637 | 2009-12-04 19:31:58 +0000 | [diff] [blame] | 56 | |
Daniel Dunbar | da382a8 | 2009-03-18 20:25:53 +0000 | [diff] [blame] | 57 | // This just needs to be some symbol in the binary; C++ doesn't |
| 58 | // allow taking the address of ::main however. |
| 59 | void *P = (void*) (intptr_t) GetExecutablePath; |
Rafael Espindola | 9678d27 | 2013-06-26 05:03:40 +0000 | [diff] [blame] | 60 | return llvm::sys::fs::getMainExecutable(Argv0, P); |
Daniel Dunbar | da382a8 | 2009-03-18 20:25:53 +0000 | [diff] [blame] | 61 | } |
| 62 | |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 63 | static const char *SaveStringInSet(std::set<std::string> &SavedStrings, |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 64 | StringRef S) { |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 65 | return SavedStrings.insert(S).first->c_str(); |
| 66 | } |
| 67 | |
| 68 | /// ApplyQAOverride - Apply a list of edits to the input argument lists. |
| 69 | /// |
| 70 | /// The input string is a space separate list of edits to perform, |
| 71 | /// they are applied in order to the input argument lists. Edits |
| 72 | /// should be one of the following forms: |
| 73 | /// |
Daniel Dunbar | 54091b8 | 2009-07-16 21:32:51 +0000 | [diff] [blame] | 74 | /// '#': Silence information about the changes to the command line arguments. |
| 75 | /// |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 76 | /// '^': Add FOO as a new argument at the beginning of the command line. |
| 77 | /// |
| 78 | /// '+': Add FOO as a new argument at the end of the command line. |
| 79 | /// |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 80 | /// 's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command |
| 81 | /// line. |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 82 | /// |
| 83 | /// 'xOPTION': Removes all instances of the literal argument OPTION. |
| 84 | /// |
| 85 | /// 'XOPTION': Removes all instances of the literal argument OPTION, |
| 86 | /// and the following argument. |
| 87 | /// |
| 88 | /// 'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox' |
| 89 | /// at the end of the command line. |
Daniel Dunbar | 54091b8 | 2009-07-16 21:32:51 +0000 | [diff] [blame] | 90 | /// |
| 91 | /// \param OS - The stream to write edit information to. |
| 92 | /// \param Args - The vector of command line arguments. |
| 93 | /// \param Edit - The override command to perform. |
| 94 | /// \param SavedStrings - Set to use for storing string representations. |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 95 | static void ApplyOneQAOverride(raw_ostream &OS, |
| 96 | SmallVectorImpl<const char*> &Args, |
| 97 | StringRef Edit, |
Chris Lattner | 09f8cc8 | 2010-03-30 05:39:52 +0000 | [diff] [blame] | 98 | std::set<std::string> &SavedStrings) { |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 99 | // This does not need to be efficient. |
| 100 | |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 101 | if (Edit[0] == '^') { |
| 102 | const char *Str = |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 103 | SaveStringInSet(SavedStrings, Edit.substr(1)); |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 104 | OS << "### Adding argument " << Str << " at beginning\n"; |
| 105 | Args.insert(Args.begin() + 1, Str); |
| 106 | } else if (Edit[0] == '+') { |
| 107 | const char *Str = |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 108 | SaveStringInSet(SavedStrings, Edit.substr(1)); |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 109 | OS << "### Adding argument " << Str << " at end\n"; |
| 110 | Args.push_back(Str); |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 111 | } else if (Edit[0] == 's' && Edit[1] == '/' && Edit.endswith("/") && |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 112 | Edit.slice(2, Edit.size()-1).find('/') != StringRef::npos) { |
| 113 | StringRef MatchPattern = Edit.substr(2).split('/').first; |
| 114 | StringRef ReplPattern = Edit.substr(2).split('/').second; |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 115 | ReplPattern = ReplPattern.slice(0, ReplPattern.size()-1); |
| 116 | |
| 117 | for (unsigned i = 1, e = Args.size(); i != e; ++i) { |
| 118 | std::string Repl = llvm::Regex(MatchPattern).sub(ReplPattern, Args[i]); |
| 119 | |
| 120 | if (Repl != Args[i]) { |
| 121 | OS << "### Replacing '" << Args[i] << "' with '" << Repl << "'\n"; |
| 122 | Args[i] = SaveStringInSet(SavedStrings, Repl); |
| 123 | } |
| 124 | } |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 125 | } else if (Edit[0] == 'x' || Edit[0] == 'X') { |
| 126 | std::string Option = Edit.substr(1, std::string::npos); |
| 127 | for (unsigned i = 1; i < Args.size();) { |
| 128 | if (Option == Args[i]) { |
| 129 | OS << "### Deleting argument " << Args[i] << '\n'; |
| 130 | Args.erase(Args.begin() + i); |
| 131 | if (Edit[0] == 'X') { |
| 132 | if (i < Args.size()) { |
| 133 | OS << "### Deleting argument " << Args[i] << '\n'; |
| 134 | Args.erase(Args.begin() + i); |
| 135 | } else |
| 136 | OS << "### Invalid X edit, end of command line!\n"; |
| 137 | } |
| 138 | } else |
| 139 | ++i; |
| 140 | } |
| 141 | } else if (Edit[0] == 'O') { |
| 142 | for (unsigned i = 1; i < Args.size();) { |
| 143 | const char *A = Args[i]; |
| 144 | if (A[0] == '-' && A[1] == 'O' && |
| 145 | (A[2] == '\0' || |
| 146 | (A[3] == '\0' && (A[2] == 's' || A[2] == 'z' || |
| 147 | ('0' <= A[2] && A[2] <= '9'))))) { |
| 148 | OS << "### Deleting argument " << Args[i] << '\n'; |
| 149 | Args.erase(Args.begin() + i); |
| 150 | } else |
| 151 | ++i; |
| 152 | } |
| 153 | OS << "### Adding argument " << Edit << " at end\n"; |
Daniel Dunbar | d2b20c1 | 2010-02-17 21:00:34 +0000 | [diff] [blame] | 154 | Args.push_back(SaveStringInSet(SavedStrings, '-' + Edit.str())); |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 155 | } else { |
| 156 | OS << "### Unrecognized edit: " << Edit << "\n"; |
| 157 | } |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | /// ApplyQAOverride - Apply a comma separate list of edits to the |
| 161 | /// input argument lists. See ApplyOneQAOverride. |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 162 | static void ApplyQAOverride(SmallVectorImpl<const char*> &Args, |
Chris Lattner | 09f8cc8 | 2010-03-30 05:39:52 +0000 | [diff] [blame] | 163 | const char *OverrideStr, |
| 164 | std::set<std::string> &SavedStrings) { |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 165 | raw_ostream *OS = &llvm::errs(); |
Daniel Dunbar | c3ccd18 | 2009-07-17 18:10:27 +0000 | [diff] [blame] | 166 | |
Daniel Dunbar | 54091b8 | 2009-07-16 21:32:51 +0000 | [diff] [blame] | 167 | if (OverrideStr[0] == '#') { |
| 168 | ++OverrideStr; |
| 169 | OS = &llvm::nulls(); |
| 170 | } |
| 171 | |
Bob Wilson | a19fad7 | 2014-01-15 01:41:52 +0000 | [diff] [blame] | 172 | *OS << "### CCC_OVERRIDE_OPTIONS: " << OverrideStr << "\n"; |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 173 | |
| 174 | // This does not need to be efficient. |
| 175 | |
| 176 | const char *S = OverrideStr; |
| 177 | while (*S) { |
| 178 | const char *End = ::strchr(S, ' '); |
| 179 | if (!End) |
| 180 | End = S + strlen(S); |
| 181 | if (End != S) |
Daniel Dunbar | 54091b8 | 2009-07-16 21:32:51 +0000 | [diff] [blame] | 182 | ApplyOneQAOverride(*OS, Args, std::string(S, End), SavedStrings); |
Daniel Dunbar | 3f4a2c2 | 2009-04-17 01:54:00 +0000 | [diff] [blame] | 183 | S = End; |
| 184 | if (*S != '\0') |
| 185 | ++S; |
| 186 | } |
| 187 | } |
| 188 | |
Daniel Dunbar | 1c39f3c | 2009-11-30 07:18:13 +0000 | [diff] [blame] | 189 | extern int cc1_main(const char **ArgBegin, const char **ArgEnd, |
Daniel Dunbar | 65ca1c6 | 2009-11-29 20:58:32 +0000 | [diff] [blame] | 190 | const char *Argv0, void *MainAddr); |
Daniel Dunbar | 2fcaa54 | 2010-05-20 17:49:16 +0000 | [diff] [blame] | 191 | extern int cc1as_main(const char **ArgBegin, const char **ArgEnd, |
| 192 | const char *Argv0, void *MainAddr); |
Daniel Dunbar | 51cd8f0 | 2009-11-19 07:37:51 +0000 | [diff] [blame] | 193 | |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 194 | static void ParseProgName(SmallVectorImpl<const char *> &ArgVector, |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 195 | std::set<std::string> &SavedStrings, |
| 196 | Driver &TheDriver) |
| 197 | { |
| 198 | // Try to infer frontend type and default target from the program name. |
| 199 | |
| 200 | // suffixes[] contains the list of known driver suffixes. |
| 201 | // Suffixes are compared against the program name in order. |
| 202 | // If there is a match, the frontend type is updated as necessary (CPP/C++). |
| 203 | // If there is no match, a second round is done after stripping the last |
| 204 | // hyphen and everything following it. This allows using something like |
| 205 | // "clang++-2.9". |
| 206 | |
| 207 | // If there is a match in either the first or second round, |
| 208 | // the function tries to identify a target as prefix. E.g. |
| 209 | // "x86_64-linux-clang" as interpreted as suffix "clang" with |
| 210 | // target prefix "x86_64-linux". If such a target prefix is found, |
Sebastian Pop | 422377c | 2012-01-20 22:01:23 +0000 | [diff] [blame] | 211 | // is gets added via -target as implicit first argument. |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 212 | static const struct { |
| 213 | const char *Suffix; |
Hans Wennborg | 70850d8 | 2013-07-18 20:29:38 +0000 | [diff] [blame] | 214 | const char *ModeFlag; |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 215 | } suffixes [] = { |
Hans Wennborg | 70850d8 | 2013-07-18 20:29:38 +0000 | [diff] [blame] | 216 | { "clang", 0 }, |
| 217 | { "clang++", "--driver-mode=g++" }, |
| 218 | { "clang-c++", "--driver-mode=g++" }, |
| 219 | { "clang-cc", 0 }, |
| 220 | { "clang-cpp", "--driver-mode=cpp" }, |
| 221 | { "clang-g++", "--driver-mode=g++" }, |
| 222 | { "clang-gcc", 0 }, |
Hans Wennborg | e4b031c | 2013-07-19 20:33:20 +0000 | [diff] [blame] | 223 | { "clang-cl", "--driver-mode=cl" }, |
Hans Wennborg | 70850d8 | 2013-07-18 20:29:38 +0000 | [diff] [blame] | 224 | { "cc", 0 }, |
| 225 | { "cpp", "--driver-mode=cpp" }, |
Hans Wennborg | e4b031c | 2013-07-19 20:33:20 +0000 | [diff] [blame] | 226 | { "cl" , "--driver-mode=cl" }, |
Hans Wennborg | 70850d8 | 2013-07-18 20:29:38 +0000 | [diff] [blame] | 227 | { "++", "--driver-mode=g++" }, |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 228 | }; |
| 229 | std::string ProgName(llvm::sys::path::stem(ArgVector[0])); |
Hans Wennborg | ae1c5a8 | 2014-03-11 23:42:29 +0000 | [diff] [blame^] | 230 | #ifdef _WIN32 |
| 231 | // Transform to lowercase for case insensitive file systems. |
Hans Wennborg | bcbc89c | 2013-08-20 21:47:50 +0000 | [diff] [blame] | 232 | std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), |
| 233 | toLowercase); |
Hans Wennborg | ae1c5a8 | 2014-03-11 23:42:29 +0000 | [diff] [blame^] | 234 | #endif |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 235 | StringRef ProgNameRef(ProgName); |
| 236 | StringRef Prefix; |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 237 | |
| 238 | for (int Components = 2; Components; --Components) { |
| 239 | bool FoundMatch = false; |
| 240 | size_t i; |
| 241 | |
Craig Topper | 2870072 | 2013-07-15 05:44:18 +0000 | [diff] [blame] | 242 | for (i = 0; i < sizeof(suffixes) / sizeof(suffixes[0]); ++i) { |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 243 | if (ProgNameRef.endswith(suffixes[i].Suffix)) { |
| 244 | FoundMatch = true; |
Hans Wennborg | 70850d8 | 2013-07-18 20:29:38 +0000 | [diff] [blame] | 245 | SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); |
| 246 | if (it != ArgVector.end()) |
| 247 | ++it; |
| 248 | if (suffixes[i].ModeFlag) |
| 249 | ArgVector.insert(it, suffixes[i].ModeFlag); |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 250 | break; |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | if (FoundMatch) { |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 255 | StringRef::size_type LastComponent = ProgNameRef.rfind('-', |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 256 | ProgNameRef.size() - strlen(suffixes[i].Suffix)); |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 257 | if (LastComponent != StringRef::npos) |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 258 | Prefix = ProgNameRef.slice(0, LastComponent); |
| 259 | break; |
| 260 | } |
| 261 | |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 262 | StringRef::size_type LastComponent = ProgNameRef.rfind('-'); |
| 263 | if (LastComponent == StringRef::npos) |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 264 | break; |
| 265 | ProgNameRef = ProgNameRef.slice(0, LastComponent); |
| 266 | } |
| 267 | |
| 268 | if (Prefix.empty()) |
| 269 | return; |
| 270 | |
| 271 | std::string IgnoredError; |
| 272 | if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) { |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 273 | SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); |
Joerg Sonnenberger | 39ec119 | 2011-07-07 16:57:26 +0000 | [diff] [blame] | 274 | if (it != ArgVector.end()) |
| 275 | ++it; |
Eli Friedman | a617d09 | 2013-08-20 22:01:43 +0000 | [diff] [blame] | 276 | const char* Strings[] = |
| 277 | { SaveStringInSet(SavedStrings, std::string("-target")), |
| 278 | SaveStringInSet(SavedStrings, Prefix) }; |
| 279 | ArgVector.insert(it, Strings, Strings + llvm::array_lengthof(Strings)); |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 280 | } |
| 281 | } |
| 282 | |
Reid Kleckner | 61b23b7 | 2013-07-18 20:00:53 +0000 | [diff] [blame] | 283 | namespace { |
| 284 | class StringSetSaver : public llvm::cl::StringSaver { |
| 285 | public: |
| 286 | StringSetSaver(std::set<std::string> &Storage) : Storage(Storage) {} |
Craig Topper | a798a9d | 2014-03-02 09:32:10 +0000 | [diff] [blame] | 287 | const char *SaveString(const char *Str) override { |
Reid Kleckner | 61b23b7 | 2013-07-18 20:00:53 +0000 | [diff] [blame] | 288 | return SaveStringInSet(Storage, Str); |
| 289 | } |
| 290 | private: |
| 291 | std::set<std::string> &Storage; |
| 292 | }; |
| 293 | } |
| 294 | |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 295 | int main(int argc_, const char **argv_) { |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 296 | llvm::sys::PrintStackTraceOnErrorSignal(); |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 297 | llvm::PrettyStackTraceProgram X(argc_, argv_); |
| 298 | |
David Majnemer | 3f8f8c9 | 2013-10-07 07:33:27 +0000 | [diff] [blame] | 299 | SmallVector<const char *, 256> argv; |
| 300 | llvm::SpecificBumpPtrAllocator<char> ArgAllocator; |
| 301 | llvm::error_code EC = llvm::sys::Process::GetArgumentVector( |
| 302 | argv, llvm::ArrayRef<const char *>(argv_, argc_), ArgAllocator); |
| 303 | if (EC) { |
| 304 | llvm::errs() << "error: couldn't get arguments: " << EC.message() << '\n'; |
| 305 | return 1; |
| 306 | } |
| 307 | |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 308 | std::set<std::string> SavedStrings; |
Reid Kleckner | 61b23b7 | 2013-07-18 20:00:53 +0000 | [diff] [blame] | 309 | StringSetSaver Saver(SavedStrings); |
| 310 | llvm::cl::ExpandResponseFiles(Saver, llvm::cl::TokenizeGNUCommandLine, argv); |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 311 | |
Daniel Dunbar | 2fcaa54 | 2010-05-20 17:49:16 +0000 | [diff] [blame] | 312 | // Handle -cc1 integrated tools. |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 313 | if (argv.size() > 1 && StringRef(argv[1]).startswith("-cc1")) { |
| 314 | StringRef Tool = argv[1] + 4; |
Daniel Dunbar | 2fcaa54 | 2010-05-20 17:49:16 +0000 | [diff] [blame] | 315 | |
| 316 | if (Tool == "") |
Daniel Dunbar | 9d8416b | 2010-07-20 02:47:40 +0000 | [diff] [blame] | 317 | return cc1_main(argv.data()+2, argv.data()+argv.size(), argv[0], |
Daniel Dunbar | 2fcaa54 | 2010-05-20 17:49:16 +0000 | [diff] [blame] | 318 | (void*) (intptr_t) GetExecutablePath); |
| 319 | if (Tool == "as") |
Daniel Dunbar | 9d8416b | 2010-07-20 02:47:40 +0000 | [diff] [blame] | 320 | return cc1as_main(argv.data()+2, argv.data()+argv.size(), argv[0], |
Daniel Dunbar | 2fcaa54 | 2010-05-20 17:49:16 +0000 | [diff] [blame] | 321 | (void*) (intptr_t) GetExecutablePath); |
| 322 | |
| 323 | // Reject unknown tools. |
| 324 | llvm::errs() << "error: unknown integrated tool '" << Tool << "'\n"; |
| 325 | return 1; |
| 326 | } |
Daniel Dunbar | 1c39f3c | 2009-11-30 07:18:13 +0000 | [diff] [blame] | 327 | |
Rafael Espindola | 73d4637 | 2009-12-04 19:31:58 +0000 | [diff] [blame] | 328 | bool CanonicalPrefixes = true; |
Rafael Espindola | 77a067a | 2010-07-19 15:20:12 +0000 | [diff] [blame] | 329 | for (int i = 1, size = argv.size(); i < size; ++i) { |
Chris Lattner | 0e62c1c | 2011-07-23 10:55:15 +0000 | [diff] [blame] | 330 | if (StringRef(argv[i]) == "-no-canonical-prefixes") { |
Rafael Espindola | 73d4637 | 2009-12-04 19:31:58 +0000 | [diff] [blame] | 331 | CanonicalPrefixes = false; |
| 332 | break; |
| 333 | } |
| 334 | } |
| 335 | |
Bob Wilson | a19fad7 | 2014-01-15 01:41:52 +0000 | [diff] [blame] | 336 | // Handle CCC_OVERRIDE_OPTIONS, used for editing a command line behind the |
Bob Wilson | 39265b9 | 2014-02-23 00:11:56 +0000 | [diff] [blame] | 337 | // scenes. |
Bob Wilson | a19fad7 | 2014-01-15 01:41:52 +0000 | [diff] [blame] | 338 | if (const char *OverrideStr = ::getenv("CCC_OVERRIDE_OPTIONS")) { |
Chad Rosier | 3e263e4 | 2013-02-21 18:56:55 +0000 | [diff] [blame] | 339 | // FIXME: Driver shouldn't take extra initial argument. |
| 340 | ApplyQAOverride(argv, OverrideStr, SavedStrings); |
Chad Rosier | 3e263e4 | 2013-02-21 18:56:55 +0000 | [diff] [blame] | 341 | } |
| 342 | |
Rafael Espindola | 9678d27 | 2013-06-26 05:03:40 +0000 | [diff] [blame] | 343 | std::string Path = GetExecutablePath(argv[0], CanonicalPrefixes); |
Rafael Espindola | 73d4637 | 2009-12-04 19:31:58 +0000 | [diff] [blame] | 344 | |
Douglas Gregor | 811db4e | 2012-10-23 22:26:28 +0000 | [diff] [blame] | 345 | IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions; |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 346 | { |
Ahmed Charles | b898432 | 2014-03-07 20:03:18 +0000 | [diff] [blame] | 347 | std::unique_ptr<OptTable> Opts(createDriverOptTable()); |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 348 | unsigned MissingArgIndex, MissingArgCount; |
Ahmed Charles | b898432 | 2014-03-07 20:03:18 +0000 | [diff] [blame] | 349 | std::unique_ptr<InputArgList> Args(Opts->ParseArgs( |
| 350 | argv.begin() + 1, argv.end(), MissingArgIndex, MissingArgCount)); |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 351 | // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. |
| 352 | // Any errors that would be diagnosed here will also be diagnosed later, |
| 353 | // when the DiagnosticsEngine actually exists. |
Douglas Gregor | 811db4e | 2012-10-23 22:26:28 +0000 | [diff] [blame] | 354 | (void) ParseDiagnosticArgs(*DiagOpts, *Args); |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 355 | } |
| 356 | // Now we can create the DiagnosticsEngine with a properly-filled-out |
| 357 | // DiagnosticOptions instance. |
Douglas Gregor | 2dd19f1 | 2010-08-18 22:29:43 +0000 | [diff] [blame] | 358 | TextDiagnosticPrinter *DiagClient |
Douglas Gregor | 811db4e | 2012-10-23 22:26:28 +0000 | [diff] [blame] | 359 | = new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts); |
Reid Kleckner | dc74af1 | 2013-09-04 01:37:22 +0000 | [diff] [blame] | 360 | |
| 361 | // If the clang binary happens to be named cl.exe for compatibility reasons, |
| 362 | // use clang-cl.exe as the prefix to avoid confusion between clang and MSVC. |
| 363 | StringRef ExeBasename(llvm::sys::path::filename(Path)); |
Reid Kleckner | 1d1844a | 2013-09-04 03:10:36 +0000 | [diff] [blame] | 364 | if (ExeBasename.equals_lower("cl.exe")) |
Yaron Keren | 39f02ac | 2013-11-06 21:57:50 +0000 | [diff] [blame] | 365 | ExeBasename = "clang-cl.exe"; |
Reid Kleckner | dc74af1 | 2013-09-04 01:37:22 +0000 | [diff] [blame] | 366 | DiagClient->setPrefix(ExeBasename); |
| 367 | |
Dylan Noblesmith | c95d819 | 2012-02-20 14:00:23 +0000 | [diff] [blame] | 368 | IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); |
Chad Rosier | d6f716a | 2012-03-13 20:09:56 +0000 | [diff] [blame] | 369 | |
Douglas Gregor | 811db4e | 2012-10-23 22:26:28 +0000 | [diff] [blame] | 370 | DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient); |
Chad Rosier | 5f15a35 | 2013-01-15 01:21:53 +0000 | [diff] [blame] | 371 | ProcessWarningOptions(Diags, *DiagOpts, /*ReportDiags=*/false); |
Daniel Dunbar | d9b80c2 | 2009-03-18 02:11:26 +0000 | [diff] [blame] | 372 | |
Rafael Espindola | 9678d27 | 2013-06-26 05:03:40 +0000 | [diff] [blame] | 373 | Driver TheDriver(Path, llvm::sys::getDefaultTargetTriple(), "a.out", Diags); |
Daniel Dunbar | dae1d34 | 2009-04-01 19:08:46 +0000 | [diff] [blame] | 374 | |
Daniel Dunbar | 8897991 | 2010-08-01 22:29:51 +0000 | [diff] [blame] | 375 | // Attempt to find the original path used to invoke the driver, to determine |
| 376 | // the installed path. We do this manually, because we want to support that |
| 377 | // path being a symlink. |
Michael J. Spencer | 740857f | 2010-12-21 16:45:57 +0000 | [diff] [blame] | 378 | { |
Dylan Noblesmith | f1a13f2 | 2012-02-13 12:32:26 +0000 | [diff] [blame] | 379 | SmallString<128> InstalledPath(argv[0]); |
Daniel Dunbar | 8897991 | 2010-08-01 22:29:51 +0000 | [diff] [blame] | 380 | |
Michael J. Spencer | 740857f | 2010-12-21 16:45:57 +0000 | [diff] [blame] | 381 | // Do a PATH lookup, if there are no directory components. |
| 382 | if (llvm::sys::path::filename(InstalledPath) == InstalledPath) { |
Rafael Espindola | 0725a7d | 2013-06-13 19:25:45 +0000 | [diff] [blame] | 383 | std::string Tmp = llvm::sys::FindProgramByName( |
Michael J. Spencer | 740857f | 2010-12-21 16:45:57 +0000 | [diff] [blame] | 384 | llvm::sys::path::filename(InstalledPath.str())); |
| 385 | if (!Tmp.empty()) |
Rafael Espindola | 0725a7d | 2013-06-13 19:25:45 +0000 | [diff] [blame] | 386 | InstalledPath = Tmp; |
Michael J. Spencer | 740857f | 2010-12-21 16:45:57 +0000 | [diff] [blame] | 387 | } |
| 388 | llvm::sys::fs::make_absolute(InstalledPath); |
| 389 | InstalledPath = llvm::sys::path::parent_path(InstalledPath); |
| 390 | bool exists; |
| 391 | if (!llvm::sys::fs::exists(InstalledPath.str(), exists) && exists) |
| 392 | TheDriver.setInstalledDir(InstalledPath); |
Daniel Dunbar | 8897991 | 2010-08-01 22:29:51 +0000 | [diff] [blame] | 393 | } |
Daniel Dunbar | 8897991 | 2010-08-01 22:29:51 +0000 | [diff] [blame] | 394 | |
Joerg Sonnenberger | f6ce2fb | 2011-03-16 20:15:43 +0000 | [diff] [blame] | 395 | llvm::InitializeAllTargets(); |
| 396 | ParseProgName(argv, SavedStrings, TheDriver); |
Joerg Sonnenberger | b86f5f4 | 2011-03-06 23:31:01 +0000 | [diff] [blame] | 397 | |
Daniel Dunbar | 6a8efa8 | 2010-03-20 08:01:59 +0000 | [diff] [blame] | 398 | // Handle CC_PRINT_OPTIONS and CC_PRINT_OPTIONS_FILE. |
| 399 | TheDriver.CCPrintOptions = !!::getenv("CC_PRINT_OPTIONS"); |
| 400 | if (TheDriver.CCPrintOptions) |
| 401 | TheDriver.CCPrintOptionsFilename = ::getenv("CC_PRINT_OPTIONS_FILE"); |
| 402 | |
Daniel Dunbar | ac540b3 | 2011-02-02 21:11:35 +0000 | [diff] [blame] | 403 | // Handle CC_PRINT_HEADERS and CC_PRINT_HEADERS_FILE. |
| 404 | TheDriver.CCPrintHeaders = !!::getenv("CC_PRINT_HEADERS"); |
| 405 | if (TheDriver.CCPrintHeaders) |
| 406 | TheDriver.CCPrintHeadersFilename = ::getenv("CC_PRINT_HEADERS_FILE"); |
| 407 | |
Daniel Dunbar | 529c03b | 2011-04-07 18:01:20 +0000 | [diff] [blame] | 408 | // Handle CC_LOG_DIAGNOSTICS and CC_LOG_DIAGNOSTICS_FILE. |
| 409 | TheDriver.CCLogDiagnostics = !!::getenv("CC_LOG_DIAGNOSTICS"); |
| 410 | if (TheDriver.CCLogDiagnostics) |
| 411 | TheDriver.CCLogDiagnosticsFilename = ::getenv("CC_LOG_DIAGNOSTICS_FILE"); |
| 412 | |
Ahmed Charles | b898432 | 2014-03-07 20:03:18 +0000 | [diff] [blame] | 413 | std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(argv)); |
Daniel Dunbar | 1acb0eb | 2009-03-21 00:40:53 +0000 | [diff] [blame] | 414 | int Res = 0; |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 415 | SmallVector<std::pair<int, const Command *>, 4> FailingCommands; |
Daniel Dunbar | 1acb0eb | 2009-03-21 00:40:53 +0000 | [diff] [blame] | 416 | if (C.get()) |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 417 | Res = TheDriver.ExecuteCompilation(*C, FailingCommands); |
Chad Rosier | be10f98 | 2011-08-02 17:58:04 +0000 | [diff] [blame] | 418 | |
Chad Rosier | 681e4b8 | 2012-04-20 17:08:59 +0000 | [diff] [blame] | 419 | // Force a crash to test the diagnostics. |
Richard Smith | 940a6d7 | 2012-12-25 21:56:27 +0000 | [diff] [blame] | 420 | if (::getenv("FORCE_CLANG_DIAGNOSTICS_CRASH")) { |
| 421 | Diags.Report(diag::err_drv_force_crash) << "FORCE_CLANG_DIAGNOSTICS_CRASH"; |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 422 | const Command *FailingCommand = 0; |
| 423 | FailingCommands.push_back(std::make_pair(-1, FailingCommand)); |
Richard Smith | 940a6d7 | 2012-12-25 21:56:27 +0000 | [diff] [blame] | 424 | } |
Chad Rosier | 681e4b8 | 2012-04-20 17:08:59 +0000 | [diff] [blame] | 425 | |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 426 | for (SmallVectorImpl< std::pair<int, const Command *> >::iterator it = |
| 427 | FailingCommands.begin(), ie = FailingCommands.end(); it != ie; ++it) { |
| 428 | int CommandRes = it->first; |
| 429 | const Command *FailingCommand = it->second; |
| 430 | if (!Res) |
| 431 | Res = CommandRes; |
| 432 | |
| 433 | // If result status is < 0, then the driver command signalled an error. |
| 434 | // If result status is 70, then the driver command reported a fatal error. |
| 435 | // In these cases, generate additional diagnostic information if possible. |
| 436 | if (CommandRes < 0 || CommandRes == 70) { |
| 437 | TheDriver.generateCompilationDiagnostics(*C, FailingCommand); |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 438 | break; |
| 439 | } |
| 440 | } |
Chad Rosier | be10f98 | 2011-08-02 17:58:04 +0000 | [diff] [blame] | 441 | |
Chris Lattner | 09f8cc8 | 2010-03-30 05:39:52 +0000 | [diff] [blame] | 442 | // If any timers were active but haven't been destroyed yet, print their |
| 443 | // results now. This happens in -disable-free mode. |
| 444 | llvm::TimerGroup::printAll(llvm::errs()); |
| 445 | |
Daniel Dunbar | 2608c54 | 2009-03-18 01:38:48 +0000 | [diff] [blame] | 446 | llvm::llvm_shutdown(); |
| 447 | |
NAKAMURA Takumi | ed5bbe9 | 2012-07-17 05:09:29 +0000 | [diff] [blame] | 448 | #ifdef _WIN32 |
| 449 | // Exit status should not be negative on Win32, unless abnormal termination. |
| 450 | // Once abnormal termiation was caught, negative status should not be |
| 451 | // propagated. |
| 452 | if (Res < 0) |
| 453 | Res = 1; |
| 454 | #endif |
| 455 | |
Chad Rosier | dd60e09 | 2013-01-29 20:15:05 +0000 | [diff] [blame] | 456 | // If we have multiple failing commands, we return the result of the first |
| 457 | // failing command. |
Daniel Dunbar | 1acb0eb | 2009-03-21 00:40:53 +0000 | [diff] [blame] | 458 | return Res; |
Daniel Dunbar | 544ecd1 | 2009-03-02 19:59:07 +0000 | [diff] [blame] | 459 | } |