[Buildroot] [PATCH] package/rt-tests: add config option to build without numactl

[Baruch Siach]

Hi Andreas,

On Sun, Dec 27 2020, Andreas Klinger wrote:
> rt-tests don't show up in config menu and is not build if
> BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS is not available on the target
> architecture. In such a case numactl is also not available what applies
> for most small embedded targets.
>
> This dependency was introduced with commit 7f50cbfb800e
> ("package/rt-tests: bump to version 1.8")
>
> But rt-tests can also be build without numactl when passing NUMA=0 to
> make. This possibility is documented on
> https://wiki.linuxfoundation.org/realtime/documentation/howto/tools/rt-tests
>
> Add an option BR2_PACKAGE_RT_TESTS_WITHOUT_NUMACTL to build without
> numactl to the configuration menu.
>
> Signed-off-by: Andreas Klinger <ak at it-klinger.de>
> ---
>  package/rt-tests/Config.in   | 11 +++++++++--
>  package/rt-tests/rt-tests.mk |  8 ++++++--
>  2 files changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/package/rt-tests/Config.in b/package/rt-tests/Config.in
> index cc9b14dccb..d2fffacde6 100644
> --- a/package/rt-tests/Config.in
> +++ b/package/rt-tests/Config.in
> @@ -5,7 +5,6 @@ config BR2_PACKAGE_RT_TESTS
>  	depends on BR2_USE_MMU # fork()
>  	depends on !BR2_STATIC_LIBS # dlopen
>  	depends on !BR2_TOOLCHAIN_USES_MUSL # cyclictest
> -	depends on BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS
>  	select BR2_PACKAGE_NUMACTL
>  	help
>  	  Set of utilities for testing the real-time behaviour of a
> @@ -25,6 +24,15 @@ config BR2_PACKAGE_RT_TESTS
>  
>  	  https://wiki.linuxfoundation.org/realtime/documentation/howto/tools/rt-tests
>  
> +config BR2_PACKAGE_RT_TESTS_WITHOUT_NUMACTL
> +	bool "build without numactl"
> +	default y if !BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS
> +	depends on BR2_PACKAGE_RT_TESTS
> +	help
> +	  Build rt-tests with NUMA=0 for allowing embedded systems to use
> +	  it.
> +	  Select this if you don't have numactl on your target.

No need for another config option. Just disable NUMA on
!BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS.

> +
>  comment "rt-tests may not work on MIPS with an external uClibc toolchain"
>  	depends on BR2_PACKAGE_RT_TESTS
>  	depends on BR2_TOOLCHAIN_EXTERNAL_UCLIBC
> @@ -34,4 +42,3 @@ comment "rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 3.14, dy
>  	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
>  		|| BR2_TOOLCHAIN_USES_MUSL || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
>  	depends on BR2_USE_MMU
> -	depends on BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS
> diff --git a/package/rt-tests/rt-tests.mk b/package/rt-tests/rt-tests.mk
> index 26c257213b..4c845cf070 100644
> --- a/package/rt-tests/rt-tests.mk
> +++ b/package/rt-tests/rt-tests.mk
> @@ -9,13 +9,17 @@ RT_TESTS_SOURCE = rt-tests-$(RT_TESTS_VERSION).tar.xz
>  RT_TESTS_VERSION = 1.9
>  RT_TESTS_LICENSE = GPL-2.0+
>  RT_TESTS_LICENSE_FILES = COPYING
> -RT_TESTS_DEPENDENCIES = numactl

We still need the numactl dependency for the
BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS case.

> +
> +ifeq ($(BR2_PACKAGE_RT_TESTS_WITHOUT_NUMACTL),y)

So test for BR2_PACKAGE_NUMACTL_ARCH_SUPPORTS here instead.

baruch

> +RT_TESTS_MAKE_OPTS += NUMA=0
> +endif
>  
>  define RT_TESTS_BUILD_CMDS
>  	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
>  		CC="$(TARGET_CC)" \
>  		CFLAGS="$(TARGET_CFLAGS)" \
> -		prefix=/usr
> +		prefix=/usr \
> +		$(RT_TESTS_MAKE_OPTS)
>  endef
>  
>  define RT_TESTS_INSTALL_TARGET_CMDS


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