[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Minios-devel] [UNIKRAFT PATCH v3 5/7] arch/arm64: Don't pass -mgeneral-regs-only when CONFIG_FLOAT_POINT is y
Support CONFIG_FLOAT_POINT in Unikraft app will take some overhead during context switch. Hence still use -mgeneral-regs-only when CONFIG_FLOAT_POINT is 'n' Signed-off-by: Jia He <justin.he@xxxxxxx> --- arch/arm/arm64/Makefile.uk | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/arm64/Makefile.uk b/arch/arm/arm64/Makefile.uk index 77e5204..af6432c 100644 --- a/arch/arm/arm64/Makefile.uk +++ b/arch/arm/arm64/Makefile.uk @@ -3,7 +3,12 @@ # we should not enable the FP & SIMD access for kernel. As GCC will # the FP & SIMD registers to pass parameters, we use -mgeneral-regs-only # flag to force GCC to use generic registers +ifeq ($(CONFIG_FLOAT_POINT),y) +ARCHFLAGS += -D__ARM_64__ +else ARCHFLAGS += -D__ARM_64__ -mgeneral-regs-only +endif + ISR_ARCHFLAGS += -D__ARM_64__ -mgeneral-regs-only # Disable FPU for trap/exception/interrupt handlers -- 2.17.1 _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/minios-devel
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