linux-kernel - Re: [PATCH 2/4] selftests: Fix seccomp to support relocatable build (O=objdir)

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Message-ID: <11ffe43f-f777-7881-623d-c93196a44cb6@linuxfoundation.org>
Date:   Wed, 4 Mar 2020 16:15:37 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     shuah@...nel.org, luto@...capital.net, wad@...omium.org,
        daniel@...earbox.net, kafai@...com, yhs@...com, andriin@...com,
        gregkh@...uxfoundation.org, tglx@...utronix.de,
        khilman@...libre.com, mpe@...erman.id.au,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 2/4] selftests: Fix seccomp to support relocatable build
 (O=objdir)

On 3/4/20 3:42 PM, Kees Cook wrote:
> On Wed, Mar 04, 2020 at 03:13:33PM -0700, Shuah Khan wrote:
>> Fix seccomp relocatable builds. This is a simple fix to use the
>> right lib.mk variable TEST_GEN_PROGS for objects to leverage
>> lib.mk common framework for relocatable builds.
>>
>> Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
>> ---
>>   tools/testing/selftests/seccomp/Makefile | 16 +++-------------
>>   1 file changed, 3 insertions(+), 13 deletions(-)
>>
>> diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
>> index 1760b3e39730..a8a9717fc1be 100644
>> --- a/tools/testing/selftests/seccomp/Makefile
>> +++ b/tools/testing/selftests/seccomp/Makefile
>> @@ -1,17 +1,7 @@
>>   # SPDX-License-Identifier: GPL-2.0
>> -all:
>> -
>> -include ../lib.mk
>> -
>> -.PHONY: all clean
>> -
>> -BINARIES := seccomp_bpf seccomp_benchmark
>>   CFLAGS += -Wl,-no-as-needed -Wall
>> +LDFLAGS += -lpthread
>>   
>> -seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
> 
> How is the ../kselftest_harness.h dependency detected in the resulting
> build rules?
> 
> Otherwise, looks good.

Didn't see any problems. I will look into adding the dependency.

thanks,
-- Shuah