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SubjectRe: [PATCH v2] samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora
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On 7/10/23 7:54 AM, Huacai Chen wrote:
> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
>
> On Mon, Jul 10, 2023 at 1:34 PM 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>
>>
>> ---
>> v2:
>> use LoongArch instead of Loongarch in the title and commit message.
>> ---
>> samples/bpf/Makefile | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
>> index 615f24ebc49c..b301796a3862 100644
>> --- a/samples/bpf/Makefile
>> +++ b/samples/bpf/Makefile
>> @@ -434,7 +434,7 @@ $(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) \

There's still one location in XDP_SAMPLE_CFLAGS, do we need the $(CLANG_SYS_INCLUDES)
there as well?

>> -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 \
>> --
>> 2.27.0
>>
>>

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