From mboxrd@z Thu Jan 1 00:00:00 1970 From: Romain Naour Date: Tue, 2 Feb 2021 21:56:14 +0100 Subject: [Buildroot] [PATCH 2/2] package/xenomai: disable cobalt for armv8 In-Reply-To: <20210202205614.59303-1-romain.naour@gmail.com> References: <20210202205614.59303-1-romain.naour@gmail.com> Message-ID: <20210202205614.59303-2-romain.naour@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net When a armv8 target is used in 32bits mode, xenomai fail to detect the ARM architecture and abord the build. (__ARM_ARCH_7A__ is not defined for armv8 cpus). There are no autobuilder failures for this issue since cobalt is never selected, but the following defconfig: BR2_arm=y BR2_cortex_a53=y BR2_ARM_FPU_NEON_VFPV4=y BR2_TOOLCHAIN_EXTERNAL=y BR2_PACKAGE_XENOMAI=y BR2_PACKAGE_XENOMAI_COBALT=y This was initialy reproduced using the raspberrypi3_defconfig with Xenomai package with cobalt selected. In order to use Xenomai on raspberrypi3 in 32 bits mode, you have to select BR2_cortex_a7. This partially revert the commit a13a388dd444ee047f0e7b8c10f5e6c235ec5004. See: https://gitlab.denx.de/Xenomai/xenomai/-/blob/v3.1/lib/cobalt/arch/arm/include/asm/xenomai/features.h#L52 Signed-off-by: Romain Naour --- package/xenomai/Config.in | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/package/xenomai/Config.in b/package/xenomai/Config.in index b1b02373c3..e060bcc46f 100644 --- a/package/xenomai/Config.in +++ b/package/xenomai/Config.in @@ -1,8 +1,8 @@ config BR2_PACKAGE_XENOMAI_COBALT_ARCH_SUPPORTS bool default y - depends on BR2_i386 || BR2_x86_64 || (BR2_arm && !BR2_ARM_CPU_ARMV7M) || \ - BR2_powerpc + depends on BR2_i386 || BR2_x86_64 || BR2_powerpc || \ + (BR2_arm && !BR2_ARM_CPU_ARMV7M && !BR2_ARM_CPU_ARMV8A) comment "xenomai needs a glibc or uClibc toolchain w/ threads" depends on BR2_USE_MMU -- 2.29.2