When building the latest samples/bpf on LoongArch Fedora

     make M=samples/bpf

There are compilation errors as follows:

In file included from ./linux/samples/bpf/sockex2_kern.c:2:
In file included from ./include/uapi/linux/in.h:25:
In file included from ./include/linux/socket.h:8:
In file included from ./include/linux/uio.h:9:
In file included from ./include/linux/thread_info.h:60:
In file included from ./arch/loongarch/include/asm/thread_info.h:15:
In file included from ./arch/loongarch/include/asm/processor.h:13:
In file included from ./arch/loongarch/include/asm/cpu-info.h:11:
./arch/loongarch/include/asm/loongarch.h:13:10: fatal error: 'larchintrin.h' file not found
         ^~~~~~~~~~~~~~~
1 error generated.

larchintrin.h is included in /usr/lib64/clang/14.0.6/include,
and the header file location is specified at compile time.

Test on LoongArch Fedora:
https://github.com/fedora-remix-loongarch/releases-info

Signed-off-by: Haoran Jiang <jianghaoran@kylinos.cn>
Signed-off-by: zhangxi <zhangxi@kylinos.cn>
Change-Id: I5fca6f0cee21e429982c5a3865efc5afeb3fa757
---
 samples/bpf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 3fa16412db15..927d72659173 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -392,7 +392,7 @@ $(obj)/%.o: $(src)/%.c
 	@echo "  CLANG-bpf " $@
 	$(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(BPF_EXTRA_CFLAGS) \
 		-I$(obj) -I$(srctree)/tools/testing/selftests/bpf/ \
-		-I$(LIBBPF_INCLUDE) \
+		-I$(LIBBPF_INCLUDE) $(CLANG_SYS_INCLUDES) \
 		-D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \
 		-D__TARGET_ARCH_$(SRCARCH) -Wno-compare-distinct-pointer-types \
 		-Wno-gnu-variable-sized-type-not-at-end \
-- 
2.25.1

On Fri, Apr 25, 2025 at 2:51 AM Haoran Jiang <jianghaoran@kylinos.cn> wrote:
>
> When building the latest samples/bpf on LoongArch Fedora
>
>      make M=samples/bpf
>
> There are compilation errors as follows:
>
> In file included from ./linux/samples/bpf/sockex2_kern.c:2:
> In file included from ./include/uapi/linux/in.h:25:
> In file included from ./include/linux/socket.h:8:
> In file included from ./include/linux/uio.h:9:
> In file included from ./include/linux/thread_info.h:60:
> In file included from ./arch/loongarch/include/asm/thread_info.h:15:
> In file included from ./arch/loongarch/include/asm/processor.h:13:
> In file included from ./arch/loongarch/include/asm/cpu-info.h:11:
> ./arch/loongarch/include/asm/loongarch.h:13:10: fatal error: 'larchintrin.h' file not found
>          ^~~~~~~~~~~~~~~
> 1 error generated.
>
> larchintrin.h is included in /usr/lib64/clang/14.0.6/include,
> and the header file location is specified at compile time.
>
> Test on LoongArch Fedora:
> https://github.com/fedora-remix-loongarch/releases-info
>
> Signed-off-by: Haoran Jiang <jianghaoran@kylinos.cn>
> Signed-off-by: zhangxi <zhangxi@kylinos.cn>
> Change-Id: I5fca6f0cee21e429982c5a3865efc5afeb3fa757
> ---
>  samples/bpf/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>

applied to bpf tree, thanks

> diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
> index 3fa16412db15..927d72659173 100644
> --- a/samples/bpf/Makefile
> +++ b/samples/bpf/Makefile
> @@ -392,7 +392,7 @@ $(obj)/%.o: $(src)/%.c
>         @echo "  CLANG-bpf " $@
>         $(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(BPF_EXTRA_CFLAGS) \
>                 -I$(obj) -I$(srctree)/tools/testing/selftests/bpf/ \
> -               -I$(LIBBPF_INCLUDE) \
> +               -I$(LIBBPF_INCLUDE) $(CLANG_SYS_INCLUDES) \
>                 -D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \
>                 -D__TARGET_ARCH_$(SRCARCH) -Wno-compare-distinct-pointer-types \
>                 -Wno-gnu-variable-sized-type-not-at-end \
> --
> 2.25.1
>