[Buildroot] [PATCH] arch/arc: fix atomics selection
Yann E. MORIN
yann.morin.1998 at free.fr
Thu Sep 11 20:46:46 UTC 2014
Due to a kconfig limitation, we can't select a no-prompt symbol that
gets its dependencies by being conditionally re-defined in one or more
if-blocks, like we currently do for BR2_ARCH_HAS_ATOMICS.
As a workaround to this issue, we just redefine that symbol in the arc
if-block, like we do for all other architectures, except that in the arc
case, the default value is conditional.
Reported-by: Anton Kolesov <Anton.Kolesov at synopsys.com>
[yann.morin.1998 at free.fr: indepently re-done a patch similar to the one
Thomas made on his own]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
arch/Config.in.arc | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/Config.in.arc b/arch/Config.in.arc
index 8a7f290..fcb5d7d 100644
--- a/arch/Config.in.arc
+++ b/arch/Config.in.arc
@@ -1,7 +1,9 @@
# Choise of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
- select BR2_ARCH_HAS_ATOMICS
+
+config BR2_ARCH_HAS_ATOMICS
+ default y if BR2_ARC_ATOMIC_EXT
config BR2_ARCH
default "arc" if BR2_arcle
--
1.9.1
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