On 28/07/2023 07:49, Ian Rogers wrote:
> Commit d58ac0bf8d1e ("perf build: Add clang and llvm compile and
> linking support") added -Wall and -Wno-strict-aliasing for CXXFLAGS,
> but not -Wextra. -Wno-strict-aliasing is no longer necessary, adding
> -Wextra for CXXFLAGS requires adding -Wno-unused-parameter clang.cpp
> and clang-test.cpp for LIBCLANGLLVM=1 to build.
>
> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
> ---
> tools/perf/Makefile.config | 2 +-
> tools/perf/util/c++/Build | 3 +++
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> index 14709a6bd622..fe7afe6d8529 100644
> --- a/tools/perf/Makefile.config
> +++ b/tools/perf/Makefile.config
> @@ -333,8 +333,8 @@ CORE_CFLAGS += -std=gnu11
>
> CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
> CXXFLAGS += -Wall
> +CXXFLAGS += -Wextra
> CXXFLAGS += -fno-omit-frame-pointer
> -CXXFLAGS += -Wno-strict-aliasing
>
> HOSTCFLAGS += -Wall
> HOSTCFLAGS += -Wextra
> diff --git a/tools/perf/util/c++/Build b/tools/perf/util/c++/Build
> index 613ecfd76527..8610d032ac19 100644
> --- a/tools/perf/util/c++/Build
> +++ b/tools/perf/util/c++/Build
> @@ -1,2 +1,5 @@
> perf-$(CONFIG_CLANGLLVM) += clang.o
> perf-$(CONFIG_CLANGLLVM) += clang-test.o
> +
> +CXXFLAGS_clang.o += -Wno-unused-parameter
> +CXXFLAGS_clang-test.o += -Wno-unused-parameter
Acked-by: James Clark <james.clark@xxxxxxx>
