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linux-next/arch/m68k/Makefile
Masahiro Yamada 596b0474d3 kbuild: preprocess module linker script
There was a request to preprocess the module linker script like we
do for the vmlinux one. (https://lkml.org/lkml/2020/8/21/512)

The difference between vmlinux.lds and module.lds is that the latter
is needed for external module builds, thus must be cleaned up by
'make mrproper' instead of 'make clean'. Also, it must be created
by 'make modules_prepare'.

You cannot put it in arch/$(SRCARCH)/kernel/, which is cleaned up by
'make clean'. I moved arch/$(SRCARCH)/kernel/module.lds to
arch/$(SRCARCH)/include/asm/module.lds.h, which is included from
scripts/module.lds.S.

scripts/module.lds is fine because 'make clean' keeps all the
build artifacts under scripts/.

You can add arch-specific sections in <asm/module.lds.h>.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
2020-09-25 00:36:41 +09:00

147 lines
4.4 KiB
Makefile

#
# m68k/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Hamish Macdonald
# Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
#
KBUILD_DEFCONFIG := multi_defconfig
ifneq ($(SUBARCH),$(ARCH))
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, \
m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
endif
endif
#
# Enable processor type. Ordering of these is important - we want to
# use the minimum processor type of the range we support. The logic
# for 680x0 will only allow use of the -m68060 or -m68040 if no other
# 680x0 type is specified - and no option is specified for 68030 or
# 68020. The other m68k/ColdFire types always specify some type of
# compiler cpu type flag.
#
ifndef CONFIG_M68040
cpuflags-$(CONFIG_M68060) = -m68060
endif
ifndef CONFIG_M68060
cpuflags-$(CONFIG_M68040) = -m68040
endif
cpuflags-$(CONFIG_M68030) =
cpuflags-$(CONFIG_M68020) =
cpuflags-$(CONFIG_M68000) = -m68000
cpuflags-$(CONFIG_M5441x) = $(call cc-option,-mcpu=54455,-mcfv4e)
cpuflags-$(CONFIG_M54xx) = $(call cc-option,-mcpu=5475,-m5200)
cpuflags-$(CONFIG_M5407) = $(call cc-option,-mcpu=5407,-m5200)
cpuflags-$(CONFIG_M532x) = $(call cc-option,-mcpu=532x,-m5307)
cpuflags-$(CONFIG_M537x) = $(call cc-option,-mcpu=537x,-m5307)
cpuflags-$(CONFIG_M5307) = $(call cc-option,-mcpu=5307,-m5200)
cpuflags-$(CONFIG_M528x) = $(call cc-option,-mcpu=528x,-m5307)
cpuflags-$(CONFIG_M5275) = $(call cc-option,-mcpu=5275,-m5307)
cpuflags-$(CONFIG_M5272) = $(call cc-option,-mcpu=5272,-m5307)
cpuflags-$(CONFIG_M5271) = $(call cc-option,-mcpu=5271,-m5307)
cpuflags-$(CONFIG_M523x) = $(call cc-option,-mcpu=523x,-m5307)
cpuflags-$(CONFIG_M525x) = $(call cc-option,-mcpu=5253,-m5200)
cpuflags-$(CONFIG_M5249) = $(call cc-option,-mcpu=5249,-m5200)
cpuflags-$(CONFIG_M520x) = $(call cc-option,-mcpu=5208,-m5200)
cpuflags-$(CONFIG_M5206e) = $(call cc-option,-mcpu=5206e,-m5200)
cpuflags-$(CONFIG_M5206) = $(call cc-option,-mcpu=5206,-m5200)
# Evaluate tune cc-option calls now
cpuflags-y := $(cpuflags-y)
KBUILD_AFLAGS += $(cpuflags-y)
KBUILD_CFLAGS += $(cpuflags-y)
KBUILD_CFLAGS += -pipe -ffreestanding
ifdef CONFIG_MMU
# without -fno-strength-reduce the 53c7xx.c driver fails ;-(
KBUILD_CFLAGS += -fno-strength-reduce -ffixed-a2
else
# we can use a m68k-linux-gcc toolchain with these in place
KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
KBUILD_CPPFLAGS += -D__uClinux__
endif
KBUILD_LDFLAGS := -m m68kelf
ifdef CONFIG_SUN3
LDFLAGS_vmlinux = -N
endif
CHECKFLAGS += -D__mc68000__
ifdef CONFIG_KGDB
# If configured for kgdb support, include debugging infos and keep the
# frame pointer
KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
endif
#
# Select the assembler head startup code. Order is important. The default
# head code is first, processor specific selections can override it after.
#
head-y := arch/m68k/kernel/head.o
head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
head-$(CONFIG_M68000) := arch/m68k/68000/head.o
head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
core-y += arch/m68k/
libs-y += arch/m68k/lib/
all: zImage
lilo: vmlinux
if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
cat vmlinux > $(INSTALL_PATH)/vmlinux
cp System.map $(INSTALL_PATH)/System.map
if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
zImage compressed: vmlinux.gz
vmlinux.gz: vmlinux
ifndef CONFIG_KGDB
cp vmlinux vmlinux.tmp
$(STRIP) vmlinux.tmp
$(KGZIP) -9c vmlinux.tmp >vmlinux.gz
rm vmlinux.tmp
else
$(KGZIP) -9c vmlinux >vmlinux.gz
endif
bzImage: vmlinux.bz2
vmlinux.bz2: vmlinux
ifndef CONFIG_KGDB
cp vmlinux vmlinux.tmp
$(STRIP) vmlinux.tmp
$(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
rm vmlinux.tmp
else
$(KBZIP2) -1c vmlinux >vmlinux.bz2
endif
CLEAN_FILES += vmlinux.gz vmlinux.bz2
archheaders:
$(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
install:
sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"