[dpdk-dev] [PATCH v2] build: add -moutline-atomics to default Arm build
Juraj Linkeš
juraj.linkes at pantheon.tech
Fri Oct 9 11:50:32 CEST 2020
-moutline-atomics allows LSE instructions to be used if available when
compiling for ARMv8.0 instruction set. It's enabled by default on newer
compilers, such as gcc-10.1. Enable the option in case an earlier
compiler version is used for the default build that lacks either -mcpu
or -mtune which would otherwise enable it.
Signed-off-by: Juraj Linkeš <juraj.linkes at pantheon.tech>
---
config/arm/meson.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/config/arm/meson.build b/config/arm/meson.build
index 8728051d5..b195ec850 100644
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -88,7 +88,7 @@ flags_octeontx2_extra = [
['RTE_USE_C11_MEM_MODEL', true]]
machine_args_generic = [
- ['default', ['-march=armv8-a+crc']],
+ ['default', ['-march=armv8-a+crc', '-moutline-atomics']],
['native', ['-march=native']],
['0xd03', ['-mcpu=cortex-a53']],
['0xd04', ['-mcpu=cortex-a35']],
--
2.20.1
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