linux-kernel - Re: [PATCH 4/4] selftests: Add build infrastructure along with README

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Date: Thu, 11 Apr 2024 10:45:33 +0530
From: Dev Jain <dev.jain@....com>
To: Muhammad Usama Anjum <usama.anjum@...labora.com>, shuah@...nel.org,
 linux-arm-kernel@...ts.infradead.org
Cc: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
 Anshuman.Khandual@....com, suzuki.poulose@....com, ryan.roberts@....com,
 rob.herring@....com, Catalin.Marinas@....com, broonie@...nel.org,
 will@...nel.org, mark.rutland@....com
Subject: Re: [PATCH 4/4] selftests: Add build infrastructure along with README


On 4/7/24 02:45, Muhammad Usama Anjum wrote:
>> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
>> index 15b6a111c3be..8478d94cda4c 100644
>> --- a/tools/testing/selftests/Makefile
>> +++ b/tools/testing/selftests/Makefile
>> @@ -1,6 +1,7 @@
>>   # SPDX-License-Identifier: GPL-2.0
>>   TARGETS += alsa
>>   TARGETS += amd-pstate
>> +TARGETS += arm
>>   TARGETS += arm64
>>   TARGETS += bpf
>>   TARGETS += breakpoints
>> diff --git a/tools/testing/selftests/arm/Makefile b/tools/testing/selftests/arm/Makefile
>> new file mode 100644
>> index 000000000000..039224bc006e
>> --- /dev/null
>> +++ b/tools/testing/selftests/arm/Makefile
>> @@ -0,0 +1,57 @@
>> +# SPDX-License-Identifier: GPL-2.0
>> +
>> +# When ARCH not overridden for crosscompiling, lookup machine
>> +ARCH ?= $(shell uname -m 2>/dev/null || echo not)
>> +
>> +ifneq (,$(filter $(ARCH),aarch64 arm64 arm armv7l armv8l))
>> +ARM_SUBTARGETS ?= mm signal elf
>> +else
>> +ARM_SUBTARGETS :=
>> +endif
>> +
>> +CFLAGS := -Wall -O2 -g -static
>> +
>> +# A proper top_srcdir is needed by KSFT(lib.mk)
>> +top_srcdir = $(realpath ../../../../)
>> +
>> +# Additional include paths needed by kselftest.h and local headers
>> +CFLAGS += -I$(top_srcdir)/tools/testing/selftests/
>> +
>> +CFLAGS += -I$(top_srcdir)/tools/include
> Please use KHDR_INCLUDE instead of using absolute path


The reason I had excluded it was that the signal tests won't

build then. What probably happens is that the kernel headers

collide with the headers included by the compiler.