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 <wangn...@huawei.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Alexei Starovoitov <a...@fb.com>
Cc: He Kuang <heku...@huawei.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Zefan Li <lize...@huawei.com>
Cc: pi3or...@163.com
---
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
