112a0ef7bSWill Deaconlib-y := bitops.o clear_user.o delay.o copy_from_user.o \ 212a0ef7bSWill Deacon copy_to_user.o copy_in_user.o copy_page.o \ 312a0ef7bSWill Deacon clear_page.o memchr.o memcpy.o memmove.o memset.o \ 40a42cb0aSzhichang.yuan memcmp.o strcmp.o strncmp.o strlen.o strnlen.o \ 50a42cb0aSzhichang.yuan strchr.o strrchr.o 6c0385b24SWill Deacon 75be8b70aSArd Biesheuvel# Tell the compiler to treat all general purpose registers (with the 85be8b70aSArd Biesheuvel# exception of the IP registers, which are already handled by the caller 95be8b70aSArd Biesheuvel# in case of a PLT) as callee-saved, which allows for efficient runtime 105be8b70aSArd Biesheuvel# patching of the bl instruction in the caller with an atomic instruction 115be8b70aSArd Biesheuvel# when supported by the CPU. Result and argument registers are handled 125be8b70aSArd Biesheuvel# correctly, based on the function prototype. 13c0385b24SWill Deaconlib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o 14c0385b24SWill DeaconCFLAGS_atomic_ll_sc.o := -fcall-used-x0 -ffixed-x1 -ffixed-x2 \ 15c0385b24SWill Deacon -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 \ 16c0385b24SWill Deacon -ffixed-x7 -fcall-saved-x8 -fcall-saved-x9 \ 17c0385b24SWill Deacon -fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12 \ 18c0385b24SWill Deacon -fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15 \ 195be8b70aSArd Biesheuvel -fcall-saved-x18 205d7bdeb1SRobin Murphy 215d7bdeb1SRobin Murphylib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o 22