swh:1:snp:77163734605b0ec556b01d897b7bb4a7e30d46b6
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Tip revision: c470abd4fde40ea6a0846a2beab642a578c0b8cd authored by Linus Torvalds on 19 February 2017, 22:34:00 UTC
Linux 4.10
Tip revision: c470abd
Makefile
lib-y		:= bitops.o clear_user.o delay.o copy_from_user.o	\
		   copy_to_user.o copy_in_user.o copy_page.o		\
		   clear_page.o memchr.o memcpy.o memmove.o memset.o	\
		   memcmp.o strcmp.o strncmp.o strlen.o strnlen.o	\
		   strchr.o strrchr.o

# Tell the compiler to treat all general purpose registers (with the
# exception of the IP registers, which are already handled by the caller
# in case of a PLT) as callee-saved, which allows for efficient runtime
# patching of the bl instruction in the caller with an atomic instruction
# when supported by the CPU. Result and argument registers are handled
# correctly, based on the function prototype.
lib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o
CFLAGS_atomic_ll_sc.o	:= -fcall-used-x0 -ffixed-x1 -ffixed-x2		\
		   -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6		\
		   -ffixed-x7 -fcall-saved-x8 -fcall-saved-x9		\
		   -fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12	\
		   -fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15	\
		   -fcall-saved-x18
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