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arch: add an option to specify if the arch has atomic ops 

The fact that atomic operations are available is not really a
specificity of the toolchain, but rather of the architecture.

So, add a new option that architectures that have atomic operations
can select. This in turn selects the current toolchain atomic option,
until all packages have been converted, at which point the old
toolchain option can be removed.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Yann E. MORIN 2014-08-17 21:29:40 +02:00 committed by Peter Korsgaard
parent 2289c34a19
commit 1b5f0fc8df
3 changed files with 7 additions and 2 deletions
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6
arch/Config.in
View File

@ -250,6 +250,12 @@ config BR2_GCC_TARGET_FLOAT_ABI
config BR2_GCC_TARGET_MODE
string
# If the architecture has atomic operations, select this:
config BR2_ARCH_HAS_ATOMICS
bool
default y if !BR2_arc
select BR2_TOOLCHAIN_HAS_ATOMIC_INTRINSICS
# Set up target binary format
choice
prompt "Target Binary Format"

2
arch/Config.in.arc
View File

@ -1,7 +1,7 @@
# Choise of atomic instructions presence
config BR2_ARC_ATOMIC_EXT
bool "Atomic extension (LLOCK/SCOND instructions)"
select BR2_TOOLCHAIN_HAS_ATOMIC_INTRINSICS
select BR2_ARCH_HAS_ATOMICS
config BR2_ARCH
default "arc" if BR2_arcle

1
toolchain/toolchain-common.in
View File

@ -46,7 +46,6 @@ config BR2_TOOLCHAIN_HAS_SSP
config BR2_TOOLCHAIN_HAS_ATOMIC_INTRINSICS
bool
default y if !BR2_arc
config BR2_ENABLE_LOCALE_PURGE
bool "Purge unwanted locales"