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arch/arc: fix atomics selection

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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@synopsys.com>
[yann.morin.1998@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@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Yann E. MORIN 2014-09-11 22:46:46 +02:00 committed by Peter Korsgaard
parent 9581d0d117
commit 21c8f1e947
1 changed files with 3 additions and 1 deletions
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4
arch/Config.in.arc
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@ -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