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package/xenomai: disable cobalt for armv8

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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, one has to
select BR2_cortex_a7 instead of BR2_cortex_a53 (see a13a388dd4).

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 <romain.naour@gmail.com>
[yann.morin.1998@free.fr:
  - switch to independent conditional 'default y'
  - slightly reword the commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 6490a11018)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Romain Naour 2021-02-02 21:56:14 +01:00 committed by Peter Korsgaard
parent 536f7a84a3
commit b74c28ab89
1 changed files with 4 additions and 3 deletions
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7
package/xenomai/Config.in
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@ -1,8 +1,9 @@
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
default y if BR2_i386
default y if BR2_x86_64
default y if BR2_powerpc
default y if 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