[Buildroot] [git commit] package/xenomai: disable cobalt for armv8
Yann E. MORIN
yann.morin.1998 at free.fr
Fri Feb 5 08:42:16 UTC 2021
commit: https://git.buildroot.net/buildroot/commit/?id=6490a11018e71d8200f74af581c0a65b1612085a
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
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 a13a388dd444).
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 at gmail.com>
[yann.morin.1998 at free.fr:
- switch to independent conditional 'default y'
- slightly reword the commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998 at free.fr>
---
package/xenomai/Config.in | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/package/xenomai/Config.in b/package/xenomai/Config.in
index e39a550416..ec6d9e5d29 100644
--- a/package/xenomai/Config.in
+++ b/package/xenomai/Config.in
@@ -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
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