Follow Alexei's suggestion, remove "-ferror-limit=19", "-fmessage-length=127", "-vectorize-loops" and "-vectorize-slp" clang options: they are meaningless. Add comment for "-Wno-unused-value" and "-Wno-pointer-sign".
Signed-off-by: Wang Nan <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: He Kuang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] --- tools/perf/util/c++/clang.cpp | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp index 1e97415..7fe0222c5 100644 --- a/tools/perf/util/c++/clang.cpp +++ b/tools/perf/util/c++/clang.cpp @@ -41,13 +41,10 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path, "-cc1", "-triple", "bpf-pc-linux", "-fsyntax-only", - "-ferror-limit", "19", - "-fmessage-length", "127", "-O2", "-nostdsysteminc", "-nobuiltininc", - "-vectorize-loops", - "-vectorize-slp", + /* Suppress warnings when using kernel headers */ "-Wno-unused-value", "-Wno-pointer-sign", "-x", "c"}; -- 2.10.1
