xref: /linux/arch/arm64/lib/Makefile (revision bd628c1bed7902ec1f24ba0fe70758949146abbe)
1# SPDX-License-Identifier: GPL-2.0
2lib-y		:= clear_user.o delay.o copy_from_user.o		\
3		   copy_to_user.o copy_in_user.o copy_page.o		\
4		   clear_page.o memchr.o memcpy.o memmove.o memset.o	\
5		   memcmp.o strcmp.o strncmp.o strlen.o strnlen.o	\
6		   strchr.o strrchr.o tishift.o
7
8ifeq ($(CONFIG_KERNEL_MODE_NEON), y)
9obj-$(CONFIG_XOR_BLOCKS)	+= xor-neon.o
10CFLAGS_REMOVE_xor-neon.o	+= -mgeneral-regs-only
11CFLAGS_xor-neon.o		+= -ffreestanding
12endif
13
14# Tell the compiler to treat all general purpose registers (with the
15# exception of the IP registers, which are already handled by the caller
16# in case of a PLT) as callee-saved, which allows for efficient runtime
17# patching of the bl instruction in the caller with an atomic instruction
18# when supported by the CPU. Result and argument registers are handled
19# correctly, based on the function prototype.
20lib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o
21CFLAGS_atomic_ll_sc.o	:= -ffixed-x1 -ffixed-x2        		\
22		   -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6		\
23		   -ffixed-x7 -fcall-saved-x8 -fcall-saved-x9		\
24		   -fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12	\
25		   -fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15	\
26		   -fcall-saved-x18 -fomit-frame-pointer
27CFLAGS_REMOVE_atomic_ll_sc.o := -pg
28GCOV_PROFILE_atomic_ll_sc.o	:= n
29KASAN_SANITIZE_atomic_ll_sc.o	:= n
30KCOV_INSTRUMENT_atomic_ll_sc.o	:= n
31UBSAN_SANITIZE_atomic_ll_sc.o	:= n
32
33lib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o
34
35obj-$(CONFIG_CRC32) += crc32.o
36