13ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar//===-- driver.cpp - Clang GCC-Compatible Driver --------------------------===// 23ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// 33ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// The LLVM Compiler Infrastructure 43ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// 53ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// This file is distributed under the University of Illinois Open Source 63ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// License. See LICENSE.TXT for details. 73ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// 83ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar//===----------------------------------------------------------------------===// 93ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// 101eb4e64eed08837b85a375d6a953503daa844f07Daniel Dunbar// This is the entry point to the clang driver; it is a thin wrapper 111eb4e64eed08837b85a375d6a953503daa844f07Daniel Dunbar// for functionality in the Driver clang library. 123ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar// 133ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar//===----------------------------------------------------------------------===// 143ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar 153f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose#include "clang/Basic/CharInfo.h" 1602c23ebf41ae2f70da0ba7337e05c51fbfe35f7fDouglas Gregor#include "clang/Basic/DiagnosticOptions.h" 173ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar#include "clang/Driver/Compilation.h" 183ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar#include "clang/Driver/Driver.h" 19a57b3b4fea1c962678972af8fc74e121ff8b296dRichard Smith#include "clang/Driver/DriverDiagnostic.h" 20f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "clang/Driver/Options.h" 212dec85b21822f950bf6035640c496ad835e11728Chad Rosier#include "clang/Frontend/CompilerInvocation.h" 22af20afb761a2426cd715fb8db36b90092e0bb6efDaniel Dunbar#include "clang/Frontend/TextDiagnosticPrinter.h" 232dec85b21822f950bf6035640c496ad835e11728Chad Rosier#include "clang/Frontend/Utils.h" 247f9fc3f7ce076645cb6aefc99c64d9446caf13d6Chris Lattner#include "llvm/ADT/ArrayRef.h" 25651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "llvm/ADT/STLExtras.h" 26510d73200ec48496a2b10703385fe99b51e31fa5Daniel Dunbar#include "llvm/ADT/SmallString.h" 278a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola#include "llvm/ADT/SmallVector.h" 28ef8225444452a1486bd721f3285301fe84643b00Stephen Hines#include "llvm/Config/llvm-config.h" 29b1e25a1bc03292dc538d336573e0be1490223171Reid Kleckner#include "llvm/Option/ArgList.h" 30b1e25a1bc03292dc538d336573e0be1490223171Reid Kleckner#include "llvm/Option/OptTable.h" 31b1e25a1bc03292dc538d336573e0be1490223171Reid Kleckner#include "llvm/Option/Option.h" 3287f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner#include "llvm/Support/CommandLine.h" 338a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola#include "llvm/Support/ErrorHandling.h" 34fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer#include "llvm/Support/FileSystem.h" 35f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "llvm/Support/Host.h" 368f25c79e59d88df41c5a3cabba1c58035d384a6eDaniel Dunbar#include "llvm/Support/ManagedStatic.h" 378a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola#include "llvm/Support/MemoryBuffer.h" 3803013fa9a0bf1ef4b907f5fec006c8f4000fdd21Michael J. Spencer#include "llvm/Support/Path.h" 39f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "llvm/Support/PrettyStackTrace.h" 40fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer#include "llvm/Support/Process.h" 4103013fa9a0bf1ef4b907f5fec006c8f4000fdd21Michael J. Spencer#include "llvm/Support/Program.h" 42f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "llvm/Support/Regex.h" 4303013fa9a0bf1ef4b907f5fec006c8f4000fdd21Michael J. Spencer#include "llvm/Support/Signals.h" 44a6b4045dc462c03cd1e7cb9c3ec9dbfdb9c6ad62Evan Cheng#include "llvm/Support/TargetRegistry.h" 45a6b4045dc462c03cd1e7cb9c3ec9dbfdb9c6ad62Evan Cheng#include "llvm/Support/TargetSelect.h" 46f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "llvm/Support/Timer.h" 47f59edb96b2d0bfe612b732f19519ab84bb995bd4Chandler Carruth#include "llvm/Support/raw_ostream.h" 48651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include <memory> 49ef8225444452a1486bd721f3285301fe84643b00Stephen Hines#include <system_error> 504ad4b3ebbe5769143389dccfcfadb666a4ba5940Daniel Dunbarusing namespace clang; 511b3bb6efc59a21f794b534078f9ae7e95393f510Daniel Dunbarusing namespace clang::driver; 52b1e25a1bc03292dc538d336573e0be1490223171Reid Klecknerusing namespace llvm::opt; 533ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar 54ac1db6b2bde50e9a0f3846243f654f6c13682725Rafael Espindolastd::string GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) { 550f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola if (!CanonicalPrefixes) 56ac1db6b2bde50e9a0f3846243f654f6c13682725Rafael Espindola return Argv0; 570f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola 58734932c7dc77a16b15d466588e10d76bcd6d13c7Daniel Dunbar // This just needs to be some symbol in the binary; C++ doesn't 59734932c7dc77a16b15d466588e10d76bcd6d13c7Daniel Dunbar // allow taking the address of ::main however. 60734932c7dc77a16b15d466588e10d76bcd6d13c7Daniel Dunbar void *P = (void*) (intptr_t) GetExecutablePath; 61ac1db6b2bde50e9a0f3846243f654f6c13682725Rafael Espindola return llvm::sys::fs::getMainExecutable(Argv0, P); 62734932c7dc77a16b15d466588e10d76bcd6d13c7Daniel Dunbar} 63734932c7dc77a16b15d466588e10d76bcd6d13c7Daniel Dunbar 64237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbarstatic const char *SaveStringInSet(std::set<std::string> &SavedStrings, 655f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef S) { 66ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar return SavedStrings.insert(S).first->c_str(); 67ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar} 68ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 69ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// ApplyQAOverride - Apply a list of edits to the input argument lists. 70ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 71ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// The input string is a space separate list of edits to perform, 72ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// they are applied in order to the input argument lists. Edits 73ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// should be one of the following forms: 74ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 75e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// '#': Silence information about the changes to the command line arguments. 76e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// 77ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// '^': Add FOO as a new argument at the beginning of the command line. 78ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 79ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// '+': Add FOO as a new argument at the end of the command line. 80ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 810de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar/// 's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command 820de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar/// line. 83ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 84ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 'xOPTION': Removes all instances of the literal argument OPTION. 85ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 86ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 'XOPTION': Removes all instances of the literal argument OPTION, 87ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// and the following argument. 88ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 89ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// 'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox' 90ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// at the end of the command line. 91e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// 92e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// \param OS - The stream to write edit information to. 93e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// \param Args - The vector of command line arguments. 94e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// \param Edit - The override command to perform. 95e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar/// \param SavedStrings - Set to use for storing string representations. 965f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic void ApplyOneQAOverride(raw_ostream &OS, 975f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<const char*> &Args, 985f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Edit, 9930bc7e8e560941f730fd94109e81ac600767b0abChris Lattner std::set<std::string> &SavedStrings) { 100ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar // This does not need to be efficient. 101ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 102237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar if (Edit[0] == '^') { 103237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar const char *Str = 1040de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar SaveStringInSet(SavedStrings, Edit.substr(1)); 105237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Adding argument " << Str << " at beginning\n"; 106237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar Args.insert(Args.begin() + 1, Str); 107237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else if (Edit[0] == '+') { 108237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar const char *Str = 1090de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar SaveStringInSet(SavedStrings, Edit.substr(1)); 110237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Adding argument " << Str << " at end\n"; 111237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar Args.push_back(Str); 1120de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar } else if (Edit[0] == 's' && Edit[1] == '/' && Edit.endswith("/") && 1135f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner Edit.slice(2, Edit.size()-1).find('/') != StringRef::npos) { 1145f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef MatchPattern = Edit.substr(2).split('/').first; 1155f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef ReplPattern = Edit.substr(2).split('/').second; 1160de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar ReplPattern = ReplPattern.slice(0, ReplPattern.size()-1); 1170de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar 1180de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar for (unsigned i = 1, e = Args.size(); i != e; ++i) { 1190de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar std::string Repl = llvm::Regex(MatchPattern).sub(ReplPattern, Args[i]); 1200de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar 1210de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar if (Repl != Args[i]) { 1220de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar OS << "### Replacing '" << Args[i] << "' with '" << Repl << "'\n"; 1230de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar Args[i] = SaveStringInSet(SavedStrings, Repl); 1240de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar } 1250de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar } 126237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else if (Edit[0] == 'x' || Edit[0] == 'X') { 127237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar std::string Option = Edit.substr(1, std::string::npos); 128237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar for (unsigned i = 1; i < Args.size();) { 129237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar if (Option == Args[i]) { 130237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Deleting argument " << Args[i] << '\n'; 131237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar Args.erase(Args.begin() + i); 132237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar if (Edit[0] == 'X') { 133237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar if (i < Args.size()) { 134237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Deleting argument " << Args[i] << '\n'; 135237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar Args.erase(Args.begin() + i); 136237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else 137237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Invalid X edit, end of command line!\n"; 138237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } 139237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else 140237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar ++i; 141237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } 142237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else if (Edit[0] == 'O') { 143237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar for (unsigned i = 1; i < Args.size();) { 144237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar const char *A = Args[i]; 145237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar if (A[0] == '-' && A[1] == 'O' && 146237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar (A[2] == '\0' || 147237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar (A[3] == '\0' && (A[2] == 's' || A[2] == 'z' || 148237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar ('0' <= A[2] && A[2] <= '9'))))) { 149237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Deleting argument " << Args[i] << '\n'; 150237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar Args.erase(Args.begin() + i); 151237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else 152237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar ++i; 153237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } 154237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Adding argument " << Edit << " at end\n"; 1550de9a7beb107a4306d05cf3589f10c3e01cfcee2Daniel Dunbar Args.push_back(SaveStringInSet(SavedStrings, '-' + Edit.str())); 156237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } else { 157237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar OS << "### Unrecognized edit: " << Edit << "\n"; 158237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar } 159ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar} 160ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 161ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// ApplyQAOverride - Apply a comma separate list of edits to the 162ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar/// input argument lists. See ApplyOneQAOverride. 1635f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic void ApplyQAOverride(SmallVectorImpl<const char*> &Args, 16430bc7e8e560941f730fd94109e81ac600767b0abChris Lattner const char *OverrideStr, 16530bc7e8e560941f730fd94109e81ac600767b0abChris Lattner std::set<std::string> &SavedStrings) { 1665f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner raw_ostream *OS = &llvm::errs(); 167237a31bf663c8c3783bd71dc7cfbdd0425a8ba69Daniel Dunbar 168e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar if (OverrideStr[0] == '#') { 169e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar ++OverrideStr; 170e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar OS = &llvm::nulls(); 171e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar } 172e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar 173651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines *OS << "### CCC_OVERRIDE_OPTIONS: " << OverrideStr << "\n"; 174ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 175ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar // This does not need to be efficient. 176ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 177ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar const char *S = OverrideStr; 178ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar while (*S) { 179ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar const char *End = ::strchr(S, ' '); 180ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar if (!End) 181ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar End = S + strlen(S); 182ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar if (End != S) 183e3d6023cbf99a24609f52adb0af1fa1c6dafefd7Daniel Dunbar ApplyOneQAOverride(*OS, Args, std::string(S, End), SavedStrings); 184ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar S = End; 185ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar if (*S != '\0') 186ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar ++S; 187ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar } 188ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar} 189ec9587d5bed6149f6df8b57192bb787c62aedb1bDaniel Dunbar 190c88aa79a6bdfd445df800006f723f83f39934e98Daniel Dunbarextern int cc1_main(const char **ArgBegin, const char **ArgEnd, 191545c28117c64e78521b8b402caa060ba0b58a530Daniel Dunbar const char *Argv0, void *MainAddr); 19241b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbarextern int cc1as_main(const char **ArgBegin, const char **ArgEnd, 19341b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar const char *Argv0, void *MainAddr); 194217acbfa3524d5805fda7900b26c1e779443588dDaniel Dunbar 1955f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic void ParseProgName(SmallVectorImpl<const char *> &ArgVector, 1960ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger std::set<std::string> &SavedStrings, 1970ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger Driver &TheDriver) 1980ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger{ 1990ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // Try to infer frontend type and default target from the program name. 2000ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2010ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // suffixes[] contains the list of known driver suffixes. 2020ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // Suffixes are compared against the program name in order. 2030ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // If there is a match, the frontend type is updated as necessary (CPP/C++). 2040ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // If there is no match, a second round is done after stripping the last 2050ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // hyphen and everything following it. This allows using something like 2060ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // "clang++-2.9". 2070ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2080ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // If there is a match in either the first or second round, 2090ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // the function tries to identify a target as prefix. E.g. 2100ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // "x86_64-linux-clang" as interpreted as suffix "clang" with 2110ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger // target prefix "x86_64-linux". If such a target prefix is found, 2129ec60dfe771ff28a84889dced6f8fd3748d3d55eSebastian Pop // is gets added via -target as implicit first argument. 2130ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger static const struct { 2140ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger const char *Suffix; 21576b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg const char *ModeFlag; 2160ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } suffixes [] = { 217ef8225444452a1486bd721f3285301fe84643b00Stephen Hines { "clang", nullptr }, 21876b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "clang++", "--driver-mode=g++" }, 21976b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "clang-c++", "--driver-mode=g++" }, 220ef8225444452a1486bd721f3285301fe84643b00Stephen Hines { "clang-cc", nullptr }, 22176b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "clang-cpp", "--driver-mode=cpp" }, 22276b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "clang-g++", "--driver-mode=g++" }, 223ef8225444452a1486bd721f3285301fe84643b00Stephen Hines { "clang-gcc", nullptr }, 224c2f531a1300cc7a79cb8dde12cb993da82beba1bHans Wennborg { "clang-cl", "--driver-mode=cl" }, 225ef8225444452a1486bd721f3285301fe84643b00Stephen Hines { "cc", nullptr }, 22676b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "cpp", "--driver-mode=cpp" }, 227c2f531a1300cc7a79cb8dde12cb993da82beba1bHans Wennborg { "cl" , "--driver-mode=cl" }, 22876b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg { "++", "--driver-mode=g++" }, 2290ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger }; 2300ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger std::string ProgName(llvm::sys::path::stem(ArgVector[0])); 231651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#ifdef LLVM_ON_WIN32 232651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Transform to lowercase for case insensitive file systems. 23313124bb43061cdaae15b1d0dbfdd0b83565570e2Hans Wennborg std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), 23413124bb43061cdaae15b1d0dbfdd0b83565570e2Hans Wennborg toLowercase); 235651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#endif 2365f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef ProgNameRef(ProgName); 2375f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Prefix; 2380ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2390ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger for (int Components = 2; Components; --Components) { 2400ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger bool FoundMatch = false; 2410ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger size_t i; 2420ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 24326a4001a4bbc33ebdf6102d604d6b793bdbffa99Craig Topper for (i = 0; i < sizeof(suffixes) / sizeof(suffixes[0]); ++i) { 2440ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger if (ProgNameRef.endswith(suffixes[i].Suffix)) { 2450ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger FoundMatch = true; 24676b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); 24776b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg if (it != ArgVector.end()) 24876b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg ++it; 24976b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg if (suffixes[i].ModeFlag) 25076b86c2e79a58910a641d449f229889d671d8a38Hans Wennborg ArgVector.insert(it, suffixes[i].ModeFlag); 2510ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger break; 2520ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } 2530ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } 2540ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2550ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger if (FoundMatch) { 2565f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::size_type LastComponent = ProgNameRef.rfind('-', 2570ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger ProgNameRef.size() - strlen(suffixes[i].Suffix)); 2585f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner if (LastComponent != StringRef::npos) 2590ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger Prefix = ProgNameRef.slice(0, LastComponent); 2600ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger break; 2610ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } 2620ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2635f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::size_type LastComponent = ProgNameRef.rfind('-'); 2645f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner if (LastComponent == StringRef::npos) 2650ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger break; 2660ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger ProgNameRef = ProgNameRef.slice(0, LastComponent); 2670ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } 2680ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2690ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger if (Prefix.empty()) 2700ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger return; 2710ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 2720ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger std::string IgnoredError; 2730ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) { 2745f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<const char *>::iterator it = ArgVector.begin(); 275ca0264320a02c636beaedf834e8725b7d1d767e7Joerg Sonnenberger if (it != ArgVector.end()) 276ca0264320a02c636beaedf834e8725b7d1d767e7Joerg Sonnenberger ++it; 2773f7e66ce7bac0e85586e90cd15befdc049b3a5f3Eli Friedman const char* Strings[] = 2783f7e66ce7bac0e85586e90cd15befdc049b3a5f3Eli Friedman { SaveStringInSet(SavedStrings, std::string("-target")), 2793f7e66ce7bac0e85586e90cd15befdc049b3a5f3Eli Friedman SaveStringInSet(SavedStrings, Prefix) }; 2803f7e66ce7bac0e85586e90cd15befdc049b3a5f3Eli Friedman ArgVector.insert(it, Strings, Strings + llvm::array_lengthof(Strings)); 2810ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger } 2820ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger} 2830ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger 28487f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Klecknernamespace { 28587f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner class StringSetSaver : public llvm::cl::StringSaver { 28687f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner public: 28787f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner StringSetSaver(std::set<std::string> &Storage) : Storage(Storage) {} 288651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *SaveString(const char *Str) override { 28987f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner return SaveStringInSet(Storage, Str); 29087f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner } 29187f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner private: 29287f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner std::set<std::string> &Storage; 29387f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner }; 29487f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner} 29587f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner 2968a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindolaint main(int argc_, const char **argv_) { 2973ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar llvm::sys::PrintStackTraceOnErrorSignal(); 2988a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola llvm::PrettyStackTraceProgram X(argc_, argv_); 2998a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola 300fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer SmallVector<const char *, 256> argv; 301fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer llvm::SpecificBumpPtrAllocator<char> ArgAllocator; 302ef8225444452a1486bd721f3285301fe84643b00Stephen Hines std::error_code EC = llvm::sys::Process::GetArgumentVector( 303ef8225444452a1486bd721f3285301fe84643b00Stephen Hines argv, ArrayRef<const char *>(argv_, argc_), ArgAllocator); 304fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer if (EC) { 305fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer llvm::errs() << "error: couldn't get arguments: " << EC.message() << '\n'; 306fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer return 1; 307fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer } 308fcb448a70d796c1cfabeb6f9456526c594848568David Majnemer 3098a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola std::set<std::string> SavedStrings; 31087f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner StringSetSaver Saver(SavedStrings); 31187f2cb5aec7b81ea6f6f9fbf6e14ef4f2de6dea6Reid Kleckner llvm::cl::ExpandResponseFiles(Saver, llvm::cl::TokenizeGNUCommandLine, argv); 3123ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar 31341b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar // Handle -cc1 integrated tools. 3145f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner if (argv.size() > 1 && StringRef(argv[1]).startswith("-cc1")) { 3155f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Tool = argv[1] + 4; 31641b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar 31741b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar if (Tool == "") 318e5d69670b6e49d11287bc8f031e0e2081755cfacDaniel Dunbar return cc1_main(argv.data()+2, argv.data()+argv.size(), argv[0], 31941b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar (void*) (intptr_t) GetExecutablePath); 32041b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar if (Tool == "as") 321e5d69670b6e49d11287bc8f031e0e2081755cfacDaniel Dunbar return cc1as_main(argv.data()+2, argv.data()+argv.size(), argv[0], 32241b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar (void*) (intptr_t) GetExecutablePath); 32341b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar 32441b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar // Reject unknown tools. 32541b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar llvm::errs() << "error: unknown integrated tool '" << Tool << "'\n"; 32641b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar return 1; 32741b5b17445ab3bdf957ebd4be6c8670f09a212a8Daniel Dunbar } 328c88aa79a6bdfd445df800006f723f83f39934e98Daniel Dunbar 3290f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola bool CanonicalPrefixes = true; 3308a1af325b424c3cf62a6164a43466b473ec5a666Rafael Espindola for (int i = 1, size = argv.size(); i < size; ++i) { 3315f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner if (StringRef(argv[i]) == "-no-canonical-prefixes") { 3320f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola CanonicalPrefixes = false; 3330f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola break; 3340f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola } 3350f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola } 3360f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola 337651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Handle CCC_OVERRIDE_OPTIONS, used for editing a command line behind the 338651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // scenes. 339651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (const char *OverrideStr = ::getenv("CCC_OVERRIDE_OPTIONS")) { 34079165b82ddc881c705275fe9eb5a745f717a1edaChad Rosier // FIXME: Driver shouldn't take extra initial argument. 34179165b82ddc881c705275fe9eb5a745f717a1edaChad Rosier ApplyQAOverride(argv, OverrideStr, SavedStrings); 34279165b82ddc881c705275fe9eb5a745f717a1edaChad Rosier } 34379165b82ddc881c705275fe9eb5a745f717a1edaChad Rosier 344ac1db6b2bde50e9a0f3846243f654f6c13682725Rafael Espindola std::string Path = GetExecutablePath(argv[0], CanonicalPrefixes); 3450f4c59c3beae302b5a3ecea13f2e257bdaad3188Rafael Espindola 34602c23ebf41ae2f70da0ba7337e05c51fbfe35f7fDouglas Gregor IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions; 3472dec85b21822f950bf6035640c496ad835e11728Chad Rosier { 348651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<OptTable> Opts(createDriverOptTable()); 3492dec85b21822f950bf6035640c496ad835e11728Chad Rosier unsigned MissingArgIndex, MissingArgCount; 350651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<InputArgList> Args(Opts->ParseArgs( 351651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines argv.begin() + 1, argv.end(), MissingArgIndex, MissingArgCount)); 3522dec85b21822f950bf6035640c496ad835e11728Chad Rosier // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 3532dec85b21822f950bf6035640c496ad835e11728Chad Rosier // Any errors that would be diagnosed here will also be diagnosed later, 3542dec85b21822f950bf6035640c496ad835e11728Chad Rosier // when the DiagnosticsEngine actually exists. 35502c23ebf41ae2f70da0ba7337e05c51fbfe35f7fDouglas Gregor (void) ParseDiagnosticArgs(*DiagOpts, *Args); 3562dec85b21822f950bf6035640c496ad835e11728Chad Rosier } 3572dec85b21822f950bf6035640c496ad835e11728Chad Rosier // Now we can create the DiagnosticsEngine with a properly-filled-out 3582dec85b21822f950bf6035640c496ad835e11728Chad Rosier // DiagnosticOptions instance. 359bdbb004f38978da0c4a75af3294d1c7b5ff84af1Douglas Gregor TextDiagnosticPrinter *DiagClient 36002c23ebf41ae2f70da0ba7337e05c51fbfe35f7fDouglas Gregor = new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts); 3617b7fd838f24f67920d5287962765b772592e905eReid Kleckner 3627b7fd838f24f67920d5287962765b772592e905eReid Kleckner // If the clang binary happens to be named cl.exe for compatibility reasons, 3637b7fd838f24f67920d5287962765b772592e905eReid Kleckner // use clang-cl.exe as the prefix to avoid confusion between clang and MSVC. 3647b7fd838f24f67920d5287962765b772592e905eReid Kleckner StringRef ExeBasename(llvm::sys::path::filename(Path)); 3658cb1bf84540d73a609105fd04e851a2d3d37389aReid Kleckner if (ExeBasename.equals_lower("cl.exe")) 366b102cdc87e59bf328982342f94fad2788177af16Yaron Keren ExeBasename = "clang-cl.exe"; 3677b7fd838f24f67920d5287962765b772592e905eReid Kleckner DiagClient->setPrefix(ExeBasename); 3687b7fd838f24f67920d5287962765b772592e905eReid Kleckner 369c93dc7889644293e318e19d82830ea2acc45b678Dylan Noblesmith IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs()); 3702dec85b21822f950bf6035640c496ad835e11728Chad Rosier 37102c23ebf41ae2f70da0ba7337e05c51fbfe35f7fDouglas Gregor DiagnosticsEngine Diags(DiagID, &*DiagOpts, DiagClient); 37208e79d2f075d1326ff7a849fd1bc88dadf99d574Chad Rosier ProcessWarningOptions(Diags, *DiagOpts, /*ReportDiags=*/false); 373510d73200ec48496a2b10703385fe99b51e31fa5Daniel Dunbar 3746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Driver TheDriver(Path, llvm::sys::getDefaultTargetTriple(), Diags); 375e5be6dac24946e9521af78fce8e531e605f563d4Daniel Dunbar 376edf29b00bc1641034b38be92146e15f0625a45d2Daniel Dunbar // Attempt to find the original path used to invoke the driver, to determine 377edf29b00bc1641034b38be92146e15f0625a45d2Daniel Dunbar // the installed path. We do this manually, because we want to support that 378edf29b00bc1641034b38be92146e15f0625a45d2Daniel Dunbar // path being a symlink. 379fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer { 38036d592718ff342f762e32cbde73d1113f88cb275Dylan Noblesmith SmallString<128> InstalledPath(argv[0]); 381fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer 382fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer // Do a PATH lookup, if there are no directory components. 383fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer if (llvm::sys::path::filename(InstalledPath) == InstalledPath) { 3842289933d3dfad854c006c02738abb1c57d1d587eRafael Espindola std::string Tmp = llvm::sys::FindProgramByName( 385fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer llvm::sys::path::filename(InstalledPath.str())); 386fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer if (!Tmp.empty()) 3872289933d3dfad854c006c02738abb1c57d1d587eRafael Espindola InstalledPath = Tmp; 388fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer } 389fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer llvm::sys::fs::make_absolute(InstalledPath); 390fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer InstalledPath = llvm::sys::path::parent_path(InstalledPath); 391fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer bool exists; 392fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer if (!llvm::sys::fs::exists(InstalledPath.str(), exists) && exists) 393fbfd180495e7800975c6d9bdc6d24e706ef70e34Michael J. Spencer TheDriver.setInstalledDir(InstalledPath); 394edf29b00bc1641034b38be92146e15f0625a45d2Daniel Dunbar } 395edf29b00bc1641034b38be92146e15f0625a45d2Daniel Dunbar 3960ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger llvm::InitializeAllTargets(); 3970ce89c6b36004b2def9e7606c7d4678885314d5fJoerg Sonnenberger ParseProgName(argv, SavedStrings, TheDriver); 3989ade4ae4fb7ed1fcbd63835d9f8f53052f0657a2Joerg Sonnenberger 3994c00fcdf98d3d7c4cb47b64f8b770f8f4bff1357Daniel Dunbar // Handle CC_PRINT_OPTIONS and CC_PRINT_OPTIONS_FILE. 4004c00fcdf98d3d7c4cb47b64f8b770f8f4bff1357Daniel Dunbar TheDriver.CCPrintOptions = !!::getenv("CC_PRINT_OPTIONS"); 4014c00fcdf98d3d7c4cb47b64f8b770f8f4bff1357Daniel Dunbar if (TheDriver.CCPrintOptions) 4024c00fcdf98d3d7c4cb47b64f8b770f8f4bff1357Daniel Dunbar TheDriver.CCPrintOptionsFilename = ::getenv("CC_PRINT_OPTIONS_FILE"); 4034c00fcdf98d3d7c4cb47b64f8b770f8f4bff1357Daniel Dunbar 404322c29fefe7fa33f03273136eb5f8b7f5b4df7c0Daniel Dunbar // Handle CC_PRINT_HEADERS and CC_PRINT_HEADERS_FILE. 405322c29fefe7fa33f03273136eb5f8b7f5b4df7c0Daniel Dunbar TheDriver.CCPrintHeaders = !!::getenv("CC_PRINT_HEADERS"); 406322c29fefe7fa33f03273136eb5f8b7f5b4df7c0Daniel Dunbar if (TheDriver.CCPrintHeaders) 407322c29fefe7fa33f03273136eb5f8b7f5b4df7c0Daniel Dunbar TheDriver.CCPrintHeadersFilename = ::getenv("CC_PRINT_HEADERS_FILE"); 408322c29fefe7fa33f03273136eb5f8b7f5b4df7c0Daniel Dunbar 409c8a22b091677c02003880166e5d5767ca8d74b70Daniel Dunbar // Handle CC_LOG_DIAGNOSTICS and CC_LOG_DIAGNOSTICS_FILE. 410c8a22b091677c02003880166e5d5767ca8d74b70Daniel Dunbar TheDriver.CCLogDiagnostics = !!::getenv("CC_LOG_DIAGNOSTICS"); 411c8a22b091677c02003880166e5d5767ca8d74b70Daniel Dunbar if (TheDriver.CCLogDiagnostics) 412c8a22b091677c02003880166e5d5767ca8d74b70Daniel Dunbar TheDriver.CCLogDiagnosticsFilename = ::getenv("CC_LOG_DIAGNOSTICS_FILE"); 413c8a22b091677c02003880166e5d5767ca8d74b70Daniel Dunbar 414651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(argv)); 415af96def468042cfbed55a4cc12b1bb917ead4f33Daniel Dunbar int Res = 0; 416a16355c31878403443f99077cc8df8318457faf5Chad Rosier SmallVector<std::pair<int, const Command *>, 4> FailingCommands; 417af96def468042cfbed55a4cc12b1bb917ead4f33Daniel Dunbar if (C.get()) 418a16355c31878403443f99077cc8df8318457faf5Chad Rosier Res = TheDriver.ExecuteCompilation(*C, FailingCommands); 4192b81910618f63e4ce2373c926a26e76b4b91373fChad Rosier 42080ec127fc9af8b83eea326fbd65265a1adc307d8Chad Rosier // Force a crash to test the diagnostics. 421a57b3b4fea1c962678972af8fc74e121ff8b296dRichard Smith if (::getenv("FORCE_CLANG_DIAGNOSTICS_CRASH")) { 422a57b3b4fea1c962678972af8fc74e121ff8b296dRichard Smith Diags.Report(diag::err_drv_force_crash) << "FORCE_CLANG_DIAGNOSTICS_CRASH"; 423ef8225444452a1486bd721f3285301fe84643b00Stephen Hines const Command *FailingCommand = nullptr; 424a16355c31878403443f99077cc8df8318457faf5Chad Rosier FailingCommands.push_back(std::make_pair(-1, FailingCommand)); 425a57b3b4fea1c962678972af8fc74e121ff8b296dRichard Smith } 42680ec127fc9af8b83eea326fbd65265a1adc307d8Chad Rosier 427a16355c31878403443f99077cc8df8318457faf5Chad Rosier for (SmallVectorImpl< std::pair<int, const Command *> >::iterator it = 428a16355c31878403443f99077cc8df8318457faf5Chad Rosier FailingCommands.begin(), ie = FailingCommands.end(); it != ie; ++it) { 429a16355c31878403443f99077cc8df8318457faf5Chad Rosier int CommandRes = it->first; 430a16355c31878403443f99077cc8df8318457faf5Chad Rosier const Command *FailingCommand = it->second; 431a16355c31878403443f99077cc8df8318457faf5Chad Rosier if (!Res) 432a16355c31878403443f99077cc8df8318457faf5Chad Rosier Res = CommandRes; 433a16355c31878403443f99077cc8df8318457faf5Chad Rosier 434a16355c31878403443f99077cc8df8318457faf5Chad Rosier // If result status is < 0, then the driver command signalled an error. 435a16355c31878403443f99077cc8df8318457faf5Chad Rosier // If result status is 70, then the driver command reported a fatal error. 436ef8225444452a1486bd721f3285301fe84643b00Stephen Hines // On Windows, abort will return an exit code of 3. In these cases, 437ef8225444452a1486bd721f3285301fe84643b00Stephen Hines // generate additional diagnostic information if possible. 438ef8225444452a1486bd721f3285301fe84643b00Stephen Hines bool DiagnoseCrash = CommandRes < 0 || CommandRes == 70; 439ef8225444452a1486bd721f3285301fe84643b00Stephen Hines#ifdef LLVM_ON_WIN32 440ef8225444452a1486bd721f3285301fe84643b00Stephen Hines DiagnoseCrash |= CommandRes == 3; 441ef8225444452a1486bd721f3285301fe84643b00Stephen Hines#endif 442ef8225444452a1486bd721f3285301fe84643b00Stephen Hines if (DiagnoseCrash) { 443a16355c31878403443f99077cc8df8318457faf5Chad Rosier TheDriver.generateCompilationDiagnostics(*C, FailingCommand); 444a16355c31878403443f99077cc8df8318457faf5Chad Rosier break; 445a16355c31878403443f99077cc8df8318457faf5Chad Rosier } 446a16355c31878403443f99077cc8df8318457faf5Chad Rosier } 4472b81910618f63e4ce2373c926a26e76b4b91373fChad Rosier 44830bc7e8e560941f730fd94109e81ac600767b0abChris Lattner // If any timers were active but haven't been destroyed yet, print their 44930bc7e8e560941f730fd94109e81ac600767b0abChris Lattner // results now. This happens in -disable-free mode. 45030bc7e8e560941f730fd94109e81ac600767b0abChris Lattner llvm::TimerGroup::printAll(llvm::errs()); 45130bc7e8e560941f730fd94109e81ac600767b0abChris Lattner 4528f25c79e59d88df41c5a3cabba1c58035d384a6eDaniel Dunbar llvm::llvm_shutdown(); 4538f25c79e59d88df41c5a3cabba1c58035d384a6eDaniel Dunbar 454651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#ifdef LLVM_ON_WIN32 455df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi // Exit status should not be negative on Win32, unless abnormal termination. 456df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi // Once abnormal termiation was caught, negative status should not be 457df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi // propagated. 458df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi if (Res < 0) 459df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi Res = 1; 460df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi#endif 461df9b933aa354b8108cee028cc4726cfa9f2df62cNAKAMURA Takumi 462a16355c31878403443f99077cc8df8318457faf5Chad Rosier // If we have multiple failing commands, we return the result of the first 463a16355c31878403443f99077cc8df8318457faf5Chad Rosier // failing command. 464af96def468042cfbed55a4cc12b1bb917ead4f33Daniel Dunbar return Res; 4653ede8d0a7d1813f678ccc6011a99a0834b1b6116Daniel Dunbar} 466