Messages in this thread Patch in this message | | | Date | Mon, 11 Oct 2021 19:13:21 -0700 | Subject | [PATCH v2 2/2] perf clang: Fixes for more recent LLVM/clang | From | Ian Rogers <> |
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The parameters to two functions and the location of a variable have changed in more recent LLVM/clang releases.
Remove the unneecessary -fmessage-length and -ferror-limit flags, the former causes failures like:
58: builtin clang support : 58.1: builtin clang compile C source to IR : --- start --- test child forked, pid 279307 error: unknown argument: '-fmessage-length' 1 error generated. test child finished with -1
Tested with LLVM 6, 8, 9, 10 and 11.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/c++/clang.cpp | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp index c8885dfa3667..df7b18fb6b6e 100644 --- a/tools/perf/util/c++/clang.cpp +++ b/tools/perf/util/c++/clang.cpp @@ -43,8 +43,6 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path, "-cc1", "-triple", "bpf-pc-linux", "-fsyntax-only", - "-ferror-limit", "19", - "-fmessage-length", "127", "-O2", "-nostdsysteminc", "-nobuiltininc", @@ -55,7 +53,11 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path, "-x", "c"}; CCArgs.append(CFlags.begin(), CFlags.end()); - CompilerInvocation *CI = tooling::newInvocation(&Diags, CCArgs); + CompilerInvocation *CI = tooling::newInvocation(&Diags, CCArgs +#if CLANG_VERSION_MAJOR >= 11 + ,/*BinaryName=*/nullptr +#endif + ); FrontendOptions& Opts = CI->getFrontendOpts(); Opts.Inputs.clear(); @@ -151,13 +153,16 @@ getBPFObjectFromModule(llvm::Module *Module) legacy::PassManager PM; bool NotAdded; -#if CLANG_VERSION_MAJOR < 7 - NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, - TargetMachine::CGFT_ObjectFile); + NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream +#if CLANG_VERSION_MAJOR >= 7 + , /*DwoOut=*/nullptr +#endif +#if CLANG_VERSION_MAJOR < 10 + , TargetMachine::CGFT_ObjectFile #else - NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, nullptr, - TargetMachine::CGFT_ObjectFile); + , llvm::CGFT_ObjectFile #endif + ); if (NotAdded) { llvm::errs() << "TargetMachine can't emit a file of this type\n"; return std::unique_ptr<llvm::SmallVectorImpl<char>>(nullptr); -- 2.33.0.882.g93a45727a2-goog
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