15#include "llvm/ADT/ArrayRef.h"
16#include "llvm/ADT/SmallString.h"
17#include "llvm/ADT/SmallVector.h"
18#include "llvm/ADT/StringExtras.h"
19#include "llvm/ADT/StringRef.h"
20#include "llvm/ADT/StringSet.h"
21#include "llvm/ADT/StringSwitch.h"
22#include "llvm/Support/CrashRecoveryContext.h"
23#include "llvm/Support/FileSystem.h"
24#include "llvm/Support/Path.h"
25#include "llvm/Support/PrettyStackTrace.h"
26#include "llvm/Support/Program.h"
27#include "llvm/Support/raw_ostream.h"
31#include <system_error>
35using namespace driver;
39 const llvm::opt::ArgStringList &Arguments,
41 const char *PrependArg)
42 : Source(Source), Creator(Creator), ResponseSupport(ResponseSupport),
43 Executable(Executable), PrependArg(PrependArg), Arguments(Arguments) {
44 for (
const auto &II : Inputs)
47 for (
const auto &II : Outputs)
49 OutputFilenames.push_back(II.getFilename());
55static bool skipArgs(
const char *Flag,
bool HaveCrashVFS,
int &SkipNum,
60 bool ShouldSkip = llvm::StringSwitch<bool>(Flag)
61 .Cases(
"-MF",
"-MT",
"-MQ",
"-serialize-diagnostic-file",
true)
62 .Cases(
"-o",
"-dependency-file",
true)
63 .Cases(
"-fdebug-compilation-dir",
"-diagnostic-log-file",
true)
64 .Cases(
"-dwarf-debug-flags",
"-ivfsoverlay",
true)
70 IsInclude = llvm::StringSwitch<bool>(Flag)
71 .Cases(
"-include",
"-header-include-file",
true)
72 .Cases(
"-idirafter",
"-internal-isystem",
"-iwithprefix",
true)
73 .Cases(
"-internal-externc-isystem",
"-iprefix",
true)
74 .Cases(
"-iwithprefixbefore",
"-isystem",
"-iquote",
true)
75 .Cases(
"-isysroot",
"-I",
"-F",
"-resource-dir",
true)
76 .Cases(
"-iframework",
"-include-pch",
true)
84 ShouldSkip = llvm::StringSwitch<bool>(Flag)
85 .Cases(
"-M",
"-MM",
"-MG",
"-MP",
"-MD",
true)
95 StringRef FlagRef(Flag);
96 IsInclude = FlagRef.starts_with(
"-F") || FlagRef.starts_with(
"-I");
99 if (FlagRef.starts_with(
"-fmodules-cache-path="))
106void Command::writeResponseFile(raw_ostream &OS)
const {
109 for (
const auto *Arg : InputFileList) {
118 for (
const auto *Arg : Arguments) {
121 for (; *Arg !=
'\0'; Arg++) {
122 if (*Arg ==
'\"' || *Arg ==
'\\') {
132void Command::buildArgvForResponseFile(
138 Out.push_back(Executable);
139 Out.push_back(ResponseFileFlag.c_str());
143 llvm::StringSet<> Inputs;
144 for (
const auto *InputName : InputFileList)
145 Inputs.insert(InputName);
146 Out.push_back(Executable);
149 Out.push_back(PrependArg);
153 bool FirstInput =
true;
154 for (
const auto *Arg : Arguments) {
155 if (Inputs.count(Arg) == 0) {
157 }
else if (FirstInput) {
160 Out.push_back(ResponseFile);
170 using namespace llvm;
174 if (path::is_absolute(InInc))
176 std::error_code EC = fs::current_path(OutInc);
179 path::append(OutInc, InInc);
185 StringRef FlagRef(Args[Idx + NumArgs - 1]);
186 assert((FlagRef.starts_with(
"-F") || FlagRef.starts_with(
"-I")) &&
187 "Expecting -I or -F");
188 StringRef Inc = FlagRef.slice(2, StringRef::npos);
189 if (getAbsPath(Inc, NewInc)) {
192 IncFlags.push_back(std::move(NewArg));
197 assert(NumArgs == 2 &&
"Not expecting more than two arguments");
198 StringRef Inc(Args[Idx + NumArgs - 1]);
199 if (!getAbsPath(Inc, NewInc))
202 IncFlags.push_back(std::move(NewInc));
209 llvm::sys::printArg(OS, Executable,
true);
213 if (ResponseFile !=
nullptr) {
214 buildArgvForResponseFile(ArgsRespFile);
216 }
else if (PrependArg) {
218 llvm::sys::printArg(OS, PrependArg,
true);
221 bool HaveCrashVFS = CrashInfo && !CrashInfo->
VFSPath.empty();
222 for (
size_t i = 0, e = Args.size(); i < e; ++i) {
223 const char *
const Arg = Args[i];
227 bool IsInclude =
false;
228 if (
skipArgs(Arg, HaveCrashVFS, NumArgs, IsInclude)) {
234 if (HaveCrashVFS && IsInclude) {
237 if (!NewIncFlags.empty()) {
238 for (
auto &F : NewIncFlags) {
240 llvm::sys::printArg(OS, F.c_str(), Quote);
251 (i == 0 || StringRef(Args[i - 1]) !=
"-main-file-name")) {
255 llvm::sys::printArg(OS,
ShortName.str(), Quote);
261 llvm::sys::printArg(OS, Arg, Quote);
264 if (CrashInfo && HaveCrashVFS) {
266 llvm::sys::printArg(OS,
"-ivfsoverlay", Quote);
268 llvm::sys::printArg(OS, CrashInfo->
VFSPath.str(), Quote);
276 llvm::sys::path::parent_path(CrashInfo->
VFSPath));
277 llvm::sys::path::append(RelModCacheDir,
"repro-modules");
279 std::string ModCachePath =
"-fmodules-cache-path=";
280 ModCachePath.append(RelModCacheDir.c_str());
283 llvm::sys::printArg(OS, ModCachePath, Quote);
286 if (ResponseFile !=
nullptr) {
287 OS <<
"\n Arguments passed via response file:\n";
288 writeResponseFile(OS);
293 OS <<
" (end of response file)";
306 Environment.reserve(NewEnvironment.size() + 1);
307 Environment.assign(NewEnvironment.begin(), NewEnvironment.end());
308 Environment.push_back(
nullptr);
312 const std::vector<std::optional<std::string>> &Redirects) {
313 RedirectFiles = Redirects;
319 llvm::outs() << llvm::sys::path::filename(Arg.getFilename()) <<
"\n";
320 llvm::outs().flush();
325 std::string *ErrMsg,
bool *ExecutionFailed)
const {
329 if (ResponseFile ==
nullptr) {
330 Argv.push_back(Executable);
332 Argv.push_back(PrependArg);
333 Argv.append(Arguments.begin(), Arguments.end());
334 Argv.push_back(
nullptr);
337 std::string RespContents;
338 llvm::raw_string_ostream SS(RespContents);
341 writeResponseFile(SS);
342 buildArgvForResponseFile(Argv);
343 Argv.push_back(
nullptr);
346 if (std::error_code EC = writeFileWithEncoding(
349 *ErrMsg = EC.message();
351 *ExecutionFailed =
true;
358 std::optional<ArrayRef<StringRef>>
Env;
359 std::vector<StringRef> ArgvVectorStorage;
360 if (!Environment.empty()) {
361 assert(Environment.back() ==
nullptr &&
362 "Environment vector should be null-terminated by now");
363 ArgvVectorStorage = llvm::toStringRefArray(Environment.data());
367 auto Args = llvm::toStringRefArray(Argv.data());
370 if (!RedirectFiles.empty()) {
371 std::vector<std::optional<StringRef>> RedirectFilesOptional;
372 for (
const auto &Ele : RedirectFiles)
374 RedirectFilesOptional.push_back(std::optional<StringRef>(*Ele));
376 RedirectFilesOptional.push_back(std::nullopt);
378 return llvm::sys::ExecuteAndWait(Executable, Args,
Env,
381 ErrMsg, ExecutionFailed, &ProcStat);
384 return llvm::sys::ExecuteAndWait(Executable, Args,
Env, Redirects,
386 ErrMsg, ExecutionFailed, &ProcStat);
391 const char *Executable,
392 const llvm::opt::ArgStringList &Arguments,
394 const char *PrependArg)
395 :
Command(Source, Creator, ResponseSupport, Executable, Arguments, Inputs,
396 Outputs, PrependArg) {
403 OS <<
" (in-process)\n";
408 std::string *ErrMsg,
bool *ExecutionFailed)
const {
420 Argv.push_back(
nullptr);
427 *ExecutionFailed =
false;
429 llvm::CrashRecoveryContext CRC;
430 CRC.DumpStackAndCleanupOnFailure =
true;
432 const void *PrettyState = llvm::SavePrettyStackState();