Re: [PATCH bpf-next 2/2] selftests: bpf: Add missing per-arch include path

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On Fri, Sep 27, 2024 at 6:14 AM Björn Töpel <bjorn@xxxxxxxxxx> wrote:
>
> From: Björn Töpel <bjorn@xxxxxxxxxxxx>
>
> The prog_tests programs do not include the per-arch tools include
> path, e.g. tools/arch/riscv/include. Some architectures depend those
> files to build properly.
>
> Include tools/arch/$(SUBARCH)/include in the selftests bpf build.
>
> Fixes: 6d74d178fe6e ("tools: Add riscv barrier implementation")
> Signed-off-by: Björn Töpel <bjorn@xxxxxxxxxxxx>
> ---
>  tools/testing/selftests/bpf/Makefile | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index 365740f24d2e..d6a53afa449f 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -10,6 +10,7 @@ TOOLSDIR := $(abspath ../../..)
>  LIBDIR := $(TOOLSDIR)/lib
>  BPFDIR := $(LIBDIR)/bpf
>  TOOLSINCDIR := $(TOOLSDIR)/include
> +TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include
>  BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
>  APIDIR := $(TOOLSINCDIR)/uapi
>  ifneq ($(O),)
> @@ -44,7 +45,7 @@ CFLAGS += -g $(OPT_FLAGS) -rdynamic                                   \
>           -Wall -Werror -fno-omit-frame-pointer                         \
>           $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS)                    \
>           -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)          \
> -         -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT)
> +         -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT)

Eduard was going to switch selftests to use kernel UAPI headers, I
wonder if we should do just that and then set up arch-specific
includes from kernel (not from tools/) as well?

>  LDFLAGS += $(SAN_LDFLAGS)
>  LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread
>
> --
> 2.43.0
>





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