tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 := $(CC_FLAGS_FTRACE)
28GCOV_PROFILE_atomic_ll_sc.o := n
29KASAN_SANITIZE_atomic_ll_sc.o := n
30KCOV_INSTRUMENT_atomic_ll_sc.o := n
31UBSAN_SANITIZE_atomic_ll_sc.o := n
32
33lib-$(CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE) += uaccess_flushcache.o
34
35obj-$(CONFIG_CRC32) += crc32.o