sammccall created this revision.
sammccall added a reviewer: kbobyrev.
Herald added subscribers: cfe-commits, usaxena95, kadircet, arphaman, jkorous,
MaskRay, javed.absar, ilya-biryukov.
Herald added a project: clang.
This will help debugging driver issues.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D70832
Files:
clang-tools-extra/clangd/Compiler.cpp
clang-tools-extra/clangd/Compiler.h
clang-tools-extra/clangd/TUScheduler.cpp
clang/include/clang/Frontend/Utils.h
clang/lib/Frontend/CreateInvocationFromCommandLine.cpp
Index: clang/lib/Frontend/CreateInvocationFromCommandLine.cpp
===================================================================
--- clang/lib/Frontend/CreateInvocationFromCommandLine.cpp
+++ clang/lib/Frontend/CreateInvocationFromCommandLine.cpp
@@ -26,7 +26,8 @@
std::unique_ptr<CompilerInvocation> clang::createInvocationFromCommandLine(
ArrayRef<const char *> ArgList, IntrusiveRefCntPtr<DiagnosticsEngine> Diags,
- IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS, bool ShouldRecoverOnErorrs) {
+ IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS, bool ShouldRecoverOnErorrs,
+ std::vector<std::string> *CC1Args) {
if (!Diags.get()) {
// No diagnostics engine was provided, so create our own diagnostics object
// with the default options.
@@ -89,6 +90,8 @@
}
const ArgStringList &CCArgs = Cmd.getArguments();
+ if (CC1Args)
+ *CC1Args = {CCArgs.begin(), CCArgs.end()};
auto CI = std::make_unique<CompilerInvocation>();
if (!CompilerInvocation::CreateFromArgs(*CI, CCArgs, *Diags) &&
!ShouldRecoverOnErorrs)
Index: clang/include/clang/Frontend/Utils.h
===================================================================
--- clang/include/clang/Frontend/Utils.h
+++ clang/include/clang/Frontend/Utils.h
@@ -217,14 +217,18 @@
/// non-null (and possibly incorrect) CompilerInvocation if any errors were
/// encountered. When this flag is false, always return null on errors.
///
-/// \return A CompilerInvocation, or 0 if none was built for the given
+/// \param CC1Args - if non-null, will be populated with the args to cc1
+/// expanded from \p Args. May be set even if nullptr is returned.
+///
+/// \return A CompilerInvocation, or nullptr if none was built for the given
/// argument vector.
std::unique_ptr<CompilerInvocation> createInvocationFromCommandLine(
ArrayRef<const char *> Args,
IntrusiveRefCntPtr<DiagnosticsEngine> Diags =
IntrusiveRefCntPtr<DiagnosticsEngine>(),
IntrusiveRefCntPtr<llvm::vfs::FileSystem> VFS = nullptr,
- bool ShouldRecoverOnErrors = false);
+ bool ShouldRecoverOnErrors = false,
+ std::vector<std::string> *CC1Args = nullptr);
/// Return the value of the last argument as an integer, or a default. If Diags
/// is non-null, emits an error if the argument is given, but non-integral.
Index: clang-tools-extra/clangd/TUScheduler.cpp
===================================================================
--- clang-tools-extra/clangd/TUScheduler.cpp
+++ clang-tools-extra/clangd/TUScheduler.cpp
@@ -407,8 +407,12 @@
llvm::join(Inputs.CompileCommand.CommandLine, " "));
// Rebuild the preamble and the AST.
StoreDiags CompilerInvocationDiagConsumer;
+ std::vector<std::string> CC1Args;
std::unique_ptr<CompilerInvocation> Invocation =
buildCompilerInvocation(Inputs, CompilerInvocationDiagConsumer);
+ // Log cc1 args even (especially!) if creating invocation failed.
+ if (!CC1Args.empty())
+ vlog("cc1 args: {0}", llvm::join(CC1Args, " "));
std::vector<Diag> CompilerInvocationDiags =
CompilerInvocationDiagConsumer.take();
if (!Invocation) {
Index: clang-tools-extra/clangd/Compiler.h
===================================================================
--- clang-tools-extra/clangd/Compiler.h
+++ clang-tools-extra/clangd/Compiler.h
@@ -68,7 +68,8 @@
std::unique_ptr<CompilerInstance> prepareCompilerInstance(
std::unique_ptr<clang::CompilerInvocation>, const PrecompiledPreamble *,
std::unique_ptr<llvm::MemoryBuffer> MainFile,
- IntrusiveRefCntPtr<llvm::vfs::FileSystem>, DiagnosticConsumer &);
+ IntrusiveRefCntPtr<llvm::vfs::FileSystem>, DiagnosticConsumer &,
+ std::vector<std::string> *CC1Args = nullptr);
} // namespace clangd
} // namespace clang
Index: clang-tools-extra/clangd/Compiler.cpp
===================================================================
--- clang-tools-extra/clangd/Compiler.cpp
+++ clang-tools-extra/clangd/Compiler.cpp
@@ -42,7 +42,8 @@
std::unique_ptr<CompilerInvocation>
buildCompilerInvocation(const ParseInputs &Inputs,
- clang::DiagnosticConsumer &D) {
+ clang::DiagnosticConsumer &D,
+ std::vector<std::string> *CC1Args) {
std::vector<const char *> ArgStrs;
for (const auto &S : Inputs.CompileCommand.CommandLine)
ArgStrs.push_back(S.c_str());
@@ -57,7 +58,7 @@
CompilerInstance::createDiagnostics(new DiagnosticOptions, &D, false);
std::unique_ptr<CompilerInvocation> CI = createInvocationFromCommandLine(
ArgStrs, CommandLineDiagsEngine, Inputs.FS,
- /*ShouldRecoverOnErrors=*/true);
+ /*ShouldRecoverOnErrors=*/true, CC1Args);
if (!CI)
return nullptr;
// createInvocationFromCommandLine sets DisableFree.
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