1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 # Makefile for the Hexagon arch !! 2 # m68k/Makefile
3 !! 3 #
4 KBUILD_DEFCONFIG = comet_defconfig !! 4 # This file is included by the global makefile so that you can add your own
5 !! 5 # architecture-specific flags and dependencies.
6 # Do not use GP-relative jumps !! 6 #
7 KBUILD_CFLAGS += -G0 !! 7 # This file is subject to the terms and conditions of the GNU General Public
8 LDFLAGS_vmlinux += -G0 !! 8 # License. See the file "COPYING" in the main directory of this archive
9 !! 9 # for more details.
10 # Do not use single-byte enums; these will ove !! 10 #
11 KBUILD_CFLAGS += -fno-short-enums !! 11 # Copyright (C) 1994 by Hamish Macdonald
12 !! 12 # Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
13 # We must use long-calls: !! 13 #
14 KBUILD_CFLAGS += -mlong-calls !! 14
15 !! 15 KBUILD_DEFCONFIG := multi_defconfig
16 # Modules must use either long-calls, or use p !! 16
17 # Use long-calls for now, it's easier. And fa !! 17 ifdef cross_compiling
18 # KBUILD_CFLAGS_MODULE += -fPIC !! 18 ifeq ($(CROSS_COMPILE),)
19 # KBUILD_LDFLAGS_MODULE += -shared !! 19 CROSS_COMPILE := $(call cc-cross-prefix, \
20 KBUILD_CFLAGS_MODULE += -mlong-calls !! 20 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
21 !! 21 endif
22 cflags-y += $(call cc-option,-mv${CONFIG_HEXAG !! 22 endif
23 aflags-y += $(call cc-option,-mv${CONFIG_HEXAG !! 23
24 ldflags-y += $(call cc-option,-mv${CONFIG_HEXA !! 24 #
25 !! 25 # Enable processor type. Ordering of these is important - we want to
26 KBUILD_CFLAGS += $(cflags-y) !! 26 # use the minimum processor type of the range we support. The logic
27 KBUILD_AFLAGS += $(aflags-y) !! 27 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
28 KBUILD_LDFLAGS += $(ldflags-y) !! 28 # 680x0 type is specified - and no option is specified for 68030 or
29 !! 29 # 68020. The other m68k/ColdFire types always specify some type of
30 # Thread-info register will be r19. This valu !! 30 # compiler cpu type flag.
31 # it is hard-coded in several files. !! 31 #
32 TIR_NAME := r19 !! 32 ifndef CONFIG_M68040
33 KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADI !! 33 cpuflags-$(CONFIG_M68060) = -m68060
34 KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME) !! 34 endif
>> 35 ifndef CONFIG_M68060
>> 36 cpuflags-$(CONFIG_M68040) = -m68040
>> 37 endif
>> 38 cpuflags-$(CONFIG_M68030) =
>> 39 cpuflags-$(CONFIG_M68020) =
>> 40 cpuflags-$(CONFIG_M68000) = -m68000
>> 41 cpuflags-$(CONFIG_M5441x) = $(call cc-option,-mcpu=54455,-mcfv4e)
>> 42 cpuflags-$(CONFIG_M54xx) = $(call cc-option,-mcpu=5475,-m5200)
>> 43 cpuflags-$(CONFIG_M5407) = $(call cc-option,-mcpu=5407,-m5200)
>> 44 cpuflags-$(CONFIG_M532x) = $(call cc-option,-mcpu=532x,-m5307)
>> 45 cpuflags-$(CONFIG_M537x) = $(call cc-option,-mcpu=537x,-m5307)
>> 46 cpuflags-$(CONFIG_M5307) = $(call cc-option,-mcpu=5307,-m5200)
>> 47 cpuflags-$(CONFIG_M528x) = $(call cc-option,-mcpu=528x,-m5307)
>> 48 cpuflags-$(CONFIG_M5275) = $(call cc-option,-mcpu=5275,-m5307)
>> 49 cpuflags-$(CONFIG_M5272) = $(call cc-option,-mcpu=5272,-m5307)
>> 50 cpuflags-$(CONFIG_M5271) = $(call cc-option,-mcpu=5271,-m5307)
>> 51 cpuflags-$(CONFIG_M523x) = $(call cc-option,-mcpu=523x,-m5307)
>> 52 cpuflags-$(CONFIG_M525x) = $(call cc-option,-mcpu=5253,-m5200)
>> 53 cpuflags-$(CONFIG_M5249) = $(call cc-option,-mcpu=5249,-m5200)
>> 54 cpuflags-$(CONFIG_M520x) = $(call cc-option,-mcpu=5208,-m5200)
>> 55 cpuflags-$(CONFIG_M5206e) = $(call cc-option,-mcpu=5206e,-m5200)
>> 56 cpuflags-$(CONFIG_M5206) = $(call cc-option,-mcpu=5206,-m5200)
>> 57
>> 58 # Evaluate tune cc-option calls now
>> 59 cpuflags-y := $(cpuflags-y)
>> 60
>> 61 KBUILD_AFLAGS += $(cpuflags-y)
>> 62 KBUILD_CFLAGS += $(cpuflags-y)
>> 63
>> 64 KBUILD_CFLAGS += -pipe -ffreestanding
>> 65
>> 66 ifdef CONFIG_MMU
>> 67 KBUILD_CFLAGS += -ffixed-a2
>> 68 else
>> 69 # we can use a m68k-linux-gcc toolchain with these in place
>> 70 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
>> 71 KBUILD_CPPFLAGS += -D__uClinux__
>> 72 endif
>> 73
>> 74 KBUILD_LDFLAGS := -m m68kelf
>> 75
>> 76 ifdef CONFIG_SUN3
>> 77 LDFLAGS_vmlinux = -N
>> 78 endif
>> 79
>> 80 CHECKFLAGS += -D__mc68000__
>> 81
>> 82
>> 83 ifdef CONFIG_KGDB
>> 84 # If configured for kgdb support, include debugging infos and keep the
>> 85 # frame pointer
>> 86 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
>> 87 endif
>> 88
>> 89 #
>> 90 # Select the assembler head startup code. Order is important. The default
>> 91 # head code is first, processor specific selections can override it after.
>> 92 #
>> 93 head-y := arch/m68k/kernel/head.o
>> 94 head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
>> 95 head-$(CONFIG_M68000) := arch/m68k/68000/head.o
>> 96 head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
>> 97
>> 98 libs-y += arch/m68k/lib/
>> 99
>> 100
>> 101 all: zImage
>> 102
>> 103 lilo: vmlinux
>> 104 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
>> 105 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
>> 106 cat vmlinux > $(INSTALL_PATH)/vmlinux
>> 107 cp System.map $(INSTALL_PATH)/System.map
>> 108 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
>> 109
>> 110 zImage compressed: vmlinux.gz
>> 111
>> 112 vmlinux.gz: vmlinux
>> 113
>> 114 ifndef CONFIG_KGDB
>> 115 cp vmlinux vmlinux.tmp
>> 116 $(STRIP) vmlinux.tmp
>> 117 $(KGZIP) -9c vmlinux.tmp >vmlinux.gz
>> 118 rm vmlinux.tmp
>> 119 else
>> 120 $(KGZIP) -9c vmlinux >vmlinux.gz
>> 121 endif
>> 122
>> 123 bzImage: vmlinux.bz2
>> 124
>> 125 vmlinux.bz2: vmlinux
>> 126
>> 127 ifndef CONFIG_KGDB
>> 128 cp vmlinux vmlinux.tmp
>> 129 $(STRIP) vmlinux.tmp
>> 130 $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
>> 131 rm vmlinux.tmp
>> 132 else
>> 133 $(KBZIP2) -1c vmlinux >vmlinux.bz2
>> 134 endif
>> 135
>> 136 CLEAN_FILES += vmlinux.gz vmlinux.bz2
>> 137
>> 138 archheaders:
>> 139 $(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
>> 140
>> 141 install: KBUILD_IMAGE := vmlinux.gz
>> 142 install:
>> 143 $(call cmd,install)
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