arch/arm/lib/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # linux/arch/arm/lib/Makefile
   4 #
   5 # Copyright (C) 1995-2000 Russell King
   6 #
   7
   8 lib-y           := changebit.o csumipv6.o csumpartial.o               \
   9                    csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
  10                    delay.o delay-loop.o findbit.o memchr.o            \
  11                    setbit.o                                           \
  12                    strchr.o strrchr.o                                 \
  13                    testchangebit.o testclearbit.o testsetbit.o        \
  14                    ashldi3.o ashrdi3.o lshrdi3.o muldi3.o             \
  15                    ucmpdi2.o lib1funcs.o div64.o                      \
  16                    io-readsb.o io-writesb.o io-readsl.o io-writesl.o  \
  17                    call_with_stack.o bswapsdi2.o
  18
  19 mmu-y           := clear_user.o copy_page.o getuser.o putuser.o       \
  20                    copy_from_user.o copy_to_user.o
  21
  22 ifdef CONFIG_CC_IS_CLANG
  23   lib-y += backtrace-clang.o
  24 else
  25   lib-y += backtrace.o
  26 endif
  27
  28 # Choose optimised implementations for Raspberry Pi
  29 ifeq ($(CONFIG_BCM2835_FAST_MEMCPY),y)
  30   CFLAGS_uaccess_with_memcpy.o += -DCOPY_FROM_USER_THRESHOLD=1600
  31   CFLAGS_uaccess_with_memcpy.o += -DCOPY_TO_USER_THRESHOLD=672
  32   obj-$(CONFIG_MODULES) += exports_rpi.o
  33   lib-y        += memcpy_rpi.o memmove_rpi.o memset_rpi.o memcmp_rpi.o
  34 else
  35   lib-y        += memcpy.o memmove.o memset.o
  36 endif
  37
  38 # using lib_ here won't override already available weak symbols
  39 obj-$(CONFIG_UACCESS_WITH_MEMCPY) += uaccess_with_memcpy.o
  40
  41 lib-$(CONFIG_MMU) += $(mmu-y)
  42
  43 ifeq ($(CONFIG_CPU_32v3),y)
  44   lib-y += io-readsw-armv3.o io-writesw-armv3.o
  45 else
  46   lib-y += io-readsw-armv4.o io-writesw-armv4.o
  47 endif
  48
  49 ifeq ($(CONFIG_ARCH_RPC),y)
  50   AFLAGS_delay-loop.o           += -march=armv4
  51 endif
  52
  53 $(obj)/csumpartialcopy.o:       $(obj)/csumpartialcopygeneric.S
  54 $(obj)/csumpartialcopyuser.o:   $(obj)/csumpartialcopygeneric.S
  55
  56 ifeq ($(CONFIG_KERNEL_MODE_NEON),y)
  57   NEON_FLAGS                    := -march=armv7-a -mfloat-abi=softfp -mfpu=neon
  58   CFLAGS_xor-neon.o             += $(NEON_FLAGS)
  59   obj-$(CONFIG_XOR_BLOCKS)      += xor-neon.o
  60 endif