diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/lib/Makefile | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile new file mode 100644 index 000000000..5df2d611b --- /dev/null +++ b/arch/arm64/lib/Makefile @@ -0,0 +1,27 @@ +# 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 |