1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 # Makefile for the Hexagon arch !! 2 # m68k/Makefile
>> 3 #
>> 4 # This file is included by the global makefile so that you can add your own
>> 5 # architecture-specific flags and dependencies. Remember to do have actions
>> 6 # for "archclean" and "archdep" for cleaning up and making dependencies for
>> 7 # this architecture
>> 8 #
>> 9 # This file is subject to the terms and conditions of the GNU General Public
>> 10 # License. See the file "COPYING" in the main directory of this archive
>> 11 # for more details.
>> 12 #
>> 13 # Copyright (C) 1994 by Hamish Macdonald
>> 14 # Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
>> 15 #
>> 16
>> 17 KBUILD_DEFCONFIG := multi_defconfig
>> 18
>> 19 ifdef cross_compiling
>> 20 ifeq ($(CROSS_COMPILE),)
>> 21 CROSS_COMPILE := $(call cc-cross-prefix, \
>> 22 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
>> 23 endif
>> 24 endif
>> 25
>> 26 #
>> 27 # Enable processor type. Ordering of these is important - we want to
>> 28 # use the minimum processor type of the range we support. The logic
>> 29 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
>> 30 # 680x0 type is specified - and no option is specified for 68030 or
>> 31 # 68020. The other m68k/ColdFire types always specify some type of
>> 32 # compiler cpu type flag.
>> 33 #
>> 34 ifndef CONFIG_M68040
>> 35 cpuflags-$(CONFIG_M68060) = -m68060
>> 36 endif
>> 37 ifndef CONFIG_M68060
>> 38 cpuflags-$(CONFIG_M68040) = -m68040
>> 39 endif
>> 40 cpuflags-$(CONFIG_M68030) =
>> 41 cpuflags-$(CONFIG_M68020) =
>> 42 cpuflags-$(CONFIG_M68000) = -m68000
>> 43 cpuflags-$(CONFIG_M5441x) = $(call cc-option,-mcpu=54455,-mcfv4e)
>> 44 cpuflags-$(CONFIG_M54xx) = $(call cc-option,-mcpu=5475,-m5200)
>> 45 cpuflags-$(CONFIG_M5407) = $(call cc-option,-mcpu=5407,-m5200)
>> 46 cpuflags-$(CONFIG_M532x) = $(call cc-option,-mcpu=532x,-m5307)
>> 47 cpuflags-$(CONFIG_M537x) = $(call cc-option,-mcpu=537x,-m5307)
>> 48 cpuflags-$(CONFIG_M5307) = $(call cc-option,-mcpu=5307,-m5200)
>> 49 cpuflags-$(CONFIG_M528x) = $(call cc-option,-mcpu=528x,-m5307)
>> 50 cpuflags-$(CONFIG_M5275) = $(call cc-option,-mcpu=5275,-m5307)
>> 51 cpuflags-$(CONFIG_M5272) = $(call cc-option,-mcpu=5272,-m5307)
>> 52 cpuflags-$(CONFIG_M5271) = $(call cc-option,-mcpu=5271,-m5307)
>> 53 cpuflags-$(CONFIG_M523x) = $(call cc-option,-mcpu=523x,-m5307)
>> 54 cpuflags-$(CONFIG_M525x) = $(call cc-option,-mcpu=5253,-m5200)
>> 55 cpuflags-$(CONFIG_M5249) = $(call cc-option,-mcpu=5249,-m5200)
>> 56 cpuflags-$(CONFIG_M520x) = $(call cc-option,-mcpu=5208,-m5200)
>> 57 cpuflags-$(CONFIG_M5206e) = $(call cc-option,-mcpu=5206e,-m5200)
>> 58 cpuflags-$(CONFIG_M5206) = $(call cc-option,-mcpu=5206,-m5200)
>> 59
>> 60 # Evaluate tune cc-option calls now
>> 61 cpuflags-y := $(cpuflags-y)
>> 62
>> 63 KBUILD_AFLAGS += $(cpuflags-y)
>> 64 KBUILD_CFLAGS += $(cpuflags-y)
>> 65
>> 66 KBUILD_CFLAGS += -pipe -ffreestanding
>> 67
>> 68 ifdef CONFIG_MMU
>> 69 # without -fno-strength-reduce the 53c7xx.c driver fails ;-(
>> 70 KBUILD_CFLAGS += -fno-strength-reduce -ffixed-a2
>> 71 else
>> 72 # we can use a m68k-linux-gcc toolchain with these in place
>> 73 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
>> 74 KBUILD_CPPFLAGS += -D__uClinux__
>> 75 endif
>> 76
>> 77 KBUILD_LDFLAGS := -m m68kelf
>> 78
>> 79 ifdef CONFIG_SUN3
>> 80 LDFLAGS_vmlinux = -N
>> 81 endif
>> 82
>> 83 CHECKFLAGS += -D__mc68000__
>> 84
>> 85
>> 86 ifdef CONFIG_KGDB
>> 87 # If configured for kgdb support, include debugging infos and keep the
>> 88 # frame pointer
>> 89 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
>> 90 endif
>> 91
>> 92 #
>> 93 # Select the assembler head startup code. Order is important. The default
>> 94 # head code is first, processor specific selections can override it after.
>> 95 #
>> 96 head-y := arch/m68k/kernel/head.o
>> 97 head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
>> 98 head-$(CONFIG_M68000) := arch/m68k/68000/head.o
>> 99 head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
>> 100
>> 101 core-y += arch/m68k/
>> 102 libs-y += arch/m68k/lib/
>> 103
>> 104
>> 105 all: zImage
>> 106
>> 107 lilo: vmlinux
>> 108 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
>> 109 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
>> 110 cat vmlinux > $(INSTALL_PATH)/vmlinux
>> 111 cp System.map $(INSTALL_PATH)/System.map
>> 112 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
>> 113
>> 114 zImage compressed: vmlinux.gz
>> 115
>> 116 vmlinux.gz: vmlinux
>> 117
>> 118 ifndef CONFIG_KGDB
>> 119 cp vmlinux vmlinux.tmp
>> 120 $(STRIP) vmlinux.tmp
>> 121 $(KGZIP) -9c vmlinux.tmp >vmlinux.gz
>> 122 rm vmlinux.tmp
>> 123 else
>> 124 $(KGZIP) -9c vmlinux >vmlinux.gz
>> 125 endif
>> 126
>> 127 bzImage: vmlinux.bz2
>> 128
>> 129 vmlinux.bz2: vmlinux
>> 130
>> 131 ifndef CONFIG_KGDB
>> 132 cp vmlinux vmlinux.tmp
>> 133 $(STRIP) vmlinux.tmp
>> 134 $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
>> 135 rm vmlinux.tmp
>> 136 else
>> 137 $(KBZIP2) -1c vmlinux >vmlinux.bz2
>> 138 endif
3 139
4 KBUILD_DEFCONFIG = comet_defconfig !! 140 CLEAN_FILES += vmlinux.gz vmlinux.bz2
5 141
6 # Do not use GP-relative jumps !! 142 archheaders:
7 KBUILD_CFLAGS += -G0 !! 143 $(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
8 LDFLAGS_vmlinux += -G0 !! 144
9 !! 145 install:
10 # Do not use single-byte enums; these will ove !! 146 sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
11 KBUILD_CFLAGS += -fno-short-enums <<
12 <<
13 # We must use long-calls: <<
14 KBUILD_CFLAGS += -mlong-calls <<
15 <<
16 # Modules must use either long-calls, or use p <<
17 # Use long-calls for now, it's easier. And fa <<
18 # KBUILD_CFLAGS_MODULE += -fPIC <<
19 # KBUILD_LDFLAGS_MODULE += -shared <<
20 KBUILD_CFLAGS_MODULE += -mlong-calls <<
21 <<
22 cflags-y += $(call cc-option,-mv${CONFIG_HEXAG <<
23 aflags-y += $(call cc-option,-mv${CONFIG_HEXAG <<
24 ldflags-y += $(call cc-option,-mv${CONFIG_HEXA <<
25 <<
26 KBUILD_CFLAGS += $(cflags-y) <<
27 KBUILD_AFLAGS += $(aflags-y) <<
28 KBUILD_LDFLAGS += $(ldflags-y) <<
29 <<
30 # Thread-info register will be r19. This valu <<
31 # it is hard-coded in several files. <<
32 TIR_NAME := r19 <<
33 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADI <<
34 KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME) <<
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