[Buildroot] [PATCH v2, 1/2] Add BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
Fabrice Fontaine
fontaine.fabrice at gmail.com
Fri Aug 17 22:10:13 UTC 2018
Add BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS variable and use
it in BR2_TOOLCHAIN_HAS_GCC_BUG_64735
This new variable will be used to select boost atomic when lock-free
atomic ints are not available
Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
toolchain/Config.in | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/toolchain/Config.in b/toolchain/Config.in
index 3a53a32a6d..ed9b59df46 100644
--- a/toolchain/Config.in
+++ b/toolchain/Config.in
@@ -73,13 +73,19 @@ config BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19615
# exception_ptr, nested_exception, and future from libstdc++ are not
# available for architectures not supporting always lock-free atomic
# ints before GCC 7
+config BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
+ bool
+ default y
+ depends on !BR2_nios2
+ depends on !BR2_ARM_CPU_ARMV4
+ depends on !BR2_ARM_CPU_ARMV5
+ depends on !BR2_sparc_v8
+ depends on !BR2_m68k_cf5208
+
config BR2_TOOLCHAIN_HAS_GCC_BUG_64735
bool
- default y if BR2_nios2
- default y if BR2_ARM_CPU_ARMV4
- default y if BR2_ARM_CPU_ARMV5
- default y if BR2_sparc_v8
- default y if BR2_m68k_cf5208
+ default y
+ depends on !BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_7
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85180. This bug no
--
2.14.1
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