Re: [PATCH] bpftool, selftests/hid/bpf: fix 29 clang warnings

[John Hubbard]

On 5/5/24 3:36 PM, Quentin Monnet wrote:
> On 05/05/2024 22:56, John Hubbard wrote:
..
> Thanks! If possible, I'd rather keep the warning enabled, and fix the
> command line instead. Looking at the error and the Makefile, we may not
> need the -lLLVM<version> in the CFLAGS at all, but only in $(LIBS). On
> my setup, I can build successfully, without the warnings, with the
> following patch:
>
> ------
> diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
> index b67454b45a49..dfa4f1bebbb3 100644
> --- a/tools/bpf/bpftool/Makefile
> +++ b/tools/bpf/bpftool/Makefile
> @@ -147,7 +147,7 @@ ifeq ($(feature-llvm),1)
>     # If LLVM is available, use it for JIT disassembly
>     CFLAGS  += -DHAVE_LLVM_SUPPORT
>     LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets
> -  CFLAGS  += $(shell $(LLVM_CONFIG) --cflags --libs $(LLVM_CONFIG_LIB_COMPONENTS))
> +  CFLAGS  += $(shell $(LLVM_CONFIG) --cflags)
>     LIBS    += $(shell $(LLVM_CONFIG) --libs $(LLVM_CONFIG_LIB_COMPONENTS))
>     ifeq ($(shell $(LLVM_CONFIG) --shared-mode),static)
>       LIBS += $(shell $(LLVM_CONFIG) --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))
> ------
>
> Could you please check whether that works on your side, too?

Yes, that works, and of course that's much better. Please let me
know if you prefer me to post a v2 with that, or if you plan
on sending it yourself?

thanks,
--
John Hubbard
NVIDIA