| # SPDX-License-Identifier: GPL-2.0 |
| lib-y := 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 tishift.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-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o |
| CFLAGS_atomic_ll_sc.o := -ffixed-x1 -ffixed-x2 \ |
| -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 \ |
| -ffixed-x7 -fcall-saved-x8 -fcall-saved-x9 \ |
| -fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12 \ |
| -fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15 \ |
| -fcall-saved-x18 -fomit-frame-pointer |
| CFLAGS_REMOVE_atomic_ll_sc.o := -pg |
| GCOV_PROFILE_atomic_ll_sc.o := n |
| KASAN_SANITIZE_atomic_ll_sc.o := n |
| KCOV_INSTRUMENT_atomic_ll_sc.o := n |
| UBSAN_SANITIZE_atomic_ll_sc.o := n |
| |
| lib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o |
