16 #include "llvm/ADT/ArrayRef.h"
17 #include "llvm/ADT/STLExtras.h"
18 #include "llvm/ADT/StringRef.h"
19 #include "llvm/ADT/StringSet.h"
20 #include "llvm/ADT/StringSwitch.h"
21 #include "llvm/Support/Program.h"
22 #include "llvm/Support/raw_ostream.h"
24 using namespace clang::driver;
25 using llvm::raw_ostream;
26 using llvm::StringRef;
30 const char *Executable,
const ArgStringList &Arguments,
32 : Source(Source), Creator(Creator), Executable(Executable),
33 Arguments(Arguments), ResponseFile(nullptr) {
34 for (
const auto &II : Inputs)
36 InputFilenames.push_back(II.getFilename());
39 static int skipArgs(
const char *Flag,
bool HaveCrashVFS) {
42 bool Res = llvm::StringSwitch<bool>(Flag)
43 .Cases(
"-I",
"-MF",
"-MT",
"-MQ",
true)
44 .Cases(
"-o",
"-coverage-file",
"-dependency-file",
true)
45 .Cases(
"-fdebug-compilation-dir",
"-idirafter",
true)
46 .Cases(
"-include",
"-include-pch",
"-internal-isystem",
true)
47 .Cases(
"-internal-externc-isystem",
"-iprefix",
"-iwithprefix",
true)
48 .Cases(
"-iwithprefixbefore",
"-isystem",
"-iquote",
true)
49 .Cases(
"-resource-dir",
"-serialize-diagnostic-file",
true)
50 .Cases(
"-dwarf-debug-flags",
"-ivfsoverlay",
true)
51 .Cases(
"-header-include-file",
"-diagnostic-log-file",
true)
53 .Case(
"-isysroot", !HaveCrashVFS)
63 Res = llvm::StringSwitch<bool>(Flag)
64 .Cases(
"-M",
"-MM",
"-MG",
"-MP",
"-MD",
true)
73 StringRef FlagRef(Flag);
74 if (FlagRef.startswith(
"-F") || FlagRef.startswith(
"-I") ||
75 FlagRef.startswith(
"-fmodules-cache-path="))
81 void Command::printArg(raw_ostream &OS,
const char *Arg,
bool Quote) {
82 const bool Escape = std::strpbrk(Arg,
"\"\\$");
84 if (!Quote && !Escape) {
91 while (
const char c = *Arg++) {
92 if (c ==
'"' || c ==
'\\' || c ==
'$')
99 void Command::writeResponseFile(raw_ostream &OS)
const {
102 for (
const char *Arg : InputFileList) {
111 for (
const char *Arg : Arguments) {
114 for (; *Arg !=
'\0'; Arg++) {
115 if (*Arg ==
'\"' || *Arg ==
'\\') {
125 void Command::buildArgvForResponseFile(
131 Out.push_back(Executable);
132 Out.push_back(ResponseFileFlag.c_str());
136 llvm::StringSet<> Inputs;
137 for (
const char *InputName : InputFileList)
138 Inputs.insert(InputName);
139 Out.push_back(Executable);
142 bool FirstInput =
true;
143 for (
const char *Arg : Arguments) {
144 if (Inputs.count(Arg) == 0) {
146 }
else if (FirstInput) {
149 Out.push_back(ResponseFile);
162 if (ResponseFile !=
nullptr) {
163 buildArgvForResponseFile(ArgsRespFile);
167 bool HaveCrashVFS = CrashInfo && !CrashInfo->
VFSPath.empty();
168 for (
size_t i = 0, e = Args.size(); i < e; ++i) {
169 const char *
const Arg = Args[i];
172 if (
int Skip =
skipArgs(Arg, HaveCrashVFS)) {
176 auto Found = std::find_if(InputFilenames.begin(), InputFilenames.end(),
177 [&Arg](StringRef IF) {
return IF == Arg; });
178 if (Found != InputFilenames.end() &&
179 (i == 0 || StringRef(Args[i - 1]) !=
"-main-file-name")) {
182 StringRef ShortName = llvm::sys::path::filename(CrashInfo->
Filename);
183 printArg(OS, ShortName.str().c_str(), Quote);
192 if (CrashInfo && HaveCrashVFS) {
194 printArg(OS,
"-ivfsoverlay", Quote);
199 if (ResponseFile !=
nullptr) {
200 OS <<
"\n Arguments passed via response file:\n";
201 writeResponseFile(OS);
206 OS <<
" (end of response file)";
213 ResponseFile = FileName;
215 ResponseFileFlag += FileName;
219 bool *ExecutionFailed)
const {
222 if (ResponseFile ==
nullptr) {
223 Argv.push_back(Executable);
224 Argv.append(Arguments.begin(), Arguments.end());
225 Argv.push_back(
nullptr);
227 return llvm::sys::ExecuteAndWait(Executable, Argv.data(),
nullptr,
235 std::string RespContents;
236 llvm::raw_string_ostream SS(RespContents);
239 writeResponseFile(SS);
240 buildArgvForResponseFile(Argv);
241 Argv.push_back(
nullptr);
245 if (std::error_code EC = writeFileWithEncoding(
248 *ErrMsg = EC.message();
250 *ExecutionFailed =
true;
254 return llvm::sys::ExecuteAndWait(Executable, Argv.data(),
nullptr,
256 0, ErrMsg, ExecutionFailed);
260 const char *Executable_,
261 const ArgStringList &Arguments_,
263 std::unique_ptr<Command> Fallback_)
264 :
Command(Source_, Creator_, Executable_, Arguments_, Inputs),
265 Fallback(std::move(Fallback_)) {}
271 Fallback->Print(OS, Terminator, Quote, CrashInfo);
278 return ExitCode != 0;
282 bool *ExecutionFailed)
const {
285 return PrimaryStatus;
291 *ExecutionFailed =
false;
294 D.
Diag(diag::warn_drv_invoking_fallback) << Fallback->getExecutable();
296 int SecondaryStatus = Fallback->Execute(Redirects, ErrMsg, ExecutionFailed);
297 return SecondaryStatus;
302 for (
const auto &Job : *
this)
303 Job.Print(OS, Terminator, Quote, CrashInfo);
void setResponseFile(const char *FileName)
Set to pass arguments via a response file when launching the command.
int Execute(const StringRef **Redirects, std::string *ErrMsg, bool *ExecutionFailed) const override
DiagnosticBuilder Diag(unsigned DiagID) const
const Tool & getCreator() const
getCreator - Return the Tool which caused the creation of this job.
virtual void Print(llvm::raw_ostream &OS, const char *Terminator, bool Quote, CrashReportInfo *CrashInfo=nullptr) const
Action - Represent an abstract compilation step to perform.
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
virtual int Execute(const StringRef **Redirects, std::string *ErrMsg, bool *ExecutionFailed) const
static int skipArgs(const char *Flag, bool HaveCrashVFS)
static bool ShouldFallback(int ExitCode)
void clear()
Clear the job list.
Command(const Action &Source, const Tool &Creator, const char *Executable, const llvm::opt::ArgStringList &Arguments, ArrayRef< InputInfo > Inputs)
Command - An executable path/name and argument vector to execute.
void Print(llvm::raw_ostream &OS, const char *Terminator, bool Quote, CrashReportInfo *CrashInfo=nullptr) const override
static void printArg(llvm::raw_ostream &OS, const char *Arg, bool Quote)
Print a command argument, and optionally quote it.
void Print(llvm::raw_ostream &OS, const char *Terminator, bool Quote, CrashReportInfo *CrashInfo=nullptr) const
FallbackCommand(const Action &Source_, const Tool &Creator_, const char *Executable_, const ArgStringList &Arguments_, ArrayRef< InputInfo > Inputs, std::unique_ptr< Command > Fallback_)