1 # 1 #
>> 2 # m68k/Makefile
>> 3 #
2 # This file is included by the global makefile 4 # This file is included by the global makefile so that you can add your own
3 # architecture-specific flags and dependencies !! 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
4 # 8 #
5 # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{ !! 9 # This file is subject to the terms and conditions of the GNU General Public
6 # Licensed under the GPL !! 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>
7 # 15 #
8 16
9 # select defconfig based on actual architectur !! 17 KBUILD_DEFCONFIG := multi_defconfig
10 ifeq ($(SUBARCH),x86) <<
11 ifeq ($(shell uname -m),x86_64) <<
12 KBUILD_DEFCONFIG := x86_64_defconfig <<
13 else <<
14 KBUILD_DEFCONFIG := i386_defconfig <<
15 endif <<
16 else <<
17 KBUILD_DEFCONFIG := $(SUBARCH)_defconf <<
18 endif <<
19 <<
20 ARCH_DIR := arch/um <<
21 # We require bash because the vmlinux link and <<
22 # features. <<
23 SHELL := bash <<
24 <<
25 MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/in <<
26 <<
27 HEADER_ARCH := $(SUBARCH) <<
28 <<
29 ifneq ($(filter $(SUBARCH),x86 x86_64 i386),) <<
30 HEADER_ARCH := x86 <<
31 endif <<
32 18
33 ifdef CONFIG_64BIT !! 19 ifneq ($(SUBARCH),$(ARCH))
34 KBUILD_CFLAGS += -mcmodel=large !! 20 ifeq ($(CROSS_COMPILE),)
>> 21 CROSS_COMPILE := $(call cc-cross-prefix, \
>> 22 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
>> 23 endif
35 endif 24 endif
36 25
37 HOST_DIR := arch/$(HEADER_ARCH) <<
38 <<
39 include $(srctree)/$(ARCH_DIR)/Makefile-skas <<
40 include $(srctree)/$(HOST_DIR)/Makefile.um <<
41 <<
42 core-y += $(HOST_DIR)/um/ <<
43 <<
44 SHARED_HEADERS := $(ARCH_DIR)/include/shared <<
45 ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADE <<
46 ARCH_INCLUDE += -I$(srctree)/$(HOST_DIR)/um <<
47 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um <<
48 <<
49 # -Dvmap=kernel_vmap prevents anything from re <<
50 # named - it's a common symbol in libpcap, so <<
51 # <<
52 # Same things for in6addr_loopback and mktime <<
53 # only get link-time error, luckily. <<
54 # 26 #
55 # -Dlongjmp=kernel_longjmp prevents anything f !! 27 # Enable processor type. Ordering of these is important - we want to
56 # embedded copy of longjmp, same thing for set !! 28 # use the minimum processor type of the range we support. The logic
>> 29 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
>> 30 # 680x0 type is specified - and no option is specified for 68030 or
>> 31 # 68020. The other m68k/ColdFire types always specify some type of
>> 32 # compiler cpu type flag.
57 # 33 #
58 # These apply to USER_CFLAGS to. !! 34 ifndef CONFIG_M68040
59 !! 35 cpuflags-$(CONFIG_M68060) := -m68060
60 KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arc !! 36 endif
61 $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap !! 37 ifndef CONFIG_M68060
62 -Dlongjmp=kernel_longjmp -Dsetjmp=kern !! 38 cpuflags-$(CONFIG_M68040) := -m68040
63 -Din6addr_loopback=kernel_in6addr_loop !! 39 endif
64 -Din6addr_any=kernel_in6addr_any -Dstr !! 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 KBUILD_AFLAGS += $(cpuflags-y)
>> 61 KBUILD_CFLAGS += $(cpuflags-y) -pipe
>> 62 ifdef CONFIG_MMU
>> 63 # without -fno-strength-reduce the 53c7xx.c driver fails ;-(
>> 64 KBUILD_CFLAGS += -fno-strength-reduce -ffixed-a2
>> 65 else
>> 66 # we can use a m68k-linux-gcc toolchain with these in place
>> 67 KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
>> 68 KBUILD_CFLAGS += -D__uClinux__
>> 69 KBUILD_AFLAGS += -D__uClinux__
>> 70 endif
65 71
66 KBUILD_RUSTFLAGS += -Crelocation-model=pie !! 72 LDFLAGS := -m m68kelf
>> 73 KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
67 74
68 KBUILD_AFLAGS += $(ARCH_INCLUDE) !! 75 ifdef CONFIG_SUN3
>> 76 LDFLAGS_vmlinux = -N
>> 77 endif
69 78
70 USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$( !! 79 CHECKFLAGS += -D__mc68000__
71 $(ARCH_INCLUDE) $(MODE_INCLUDE <<
72 -D_FILE_OFFSET_BITS=64 -idiraf <<
73 -idirafter $(objtree)/include <<
74 80
75 #This will adjust *FLAGS accordingly to the pl <<
76 include $(srctree)/$(ARCH_DIR)/Makefile-os-Lin <<
77 81
78 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/in !! 82 ifdef CONFIG_KGDB
79 -I$(srctree)/$(HOST_DIR)/in !! 83 # If configured for kgdb support, include debugging infos and keep the
80 -I$(objtree)/$(HOST_DIR)/in !! 84 # frame pointer
81 -I$(objtree)/$(HOST_DIR)/in !! 85 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
>> 86 endif
82 87
83 # -Derrno=kernel_errno - This turns all kernel <<
84 # kernel_errno to separate them from the libc <<
85 # in KBUILD_CFLAGS. Otherwise, it would cause <<
86 # errnos. <<
87 # These apply to kernelspace only. <<
88 # 88 #
89 # strip leading and trailing whitespace to mak !! 89 # Select the assembler head startup code. Order is important. The default
90 # defines more robust !! 90 # head code is first, processor specific selections can override it after.
91 !! 91 #
92 KERNEL_DEFINES = $(strip -Derrno=kernel_errno !! 92 head-y := arch/m68k/kernel/head.o
93 -Dmktime=kernel_mktim !! 93 head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
94 KBUILD_CFLAGS += $(KERNEL_DEFINES) !! 94 head-$(CONFIG_M68000) := arch/m68k/68000/head.o
95 !! 95 head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
96 PHONY += linux !! 96
97 !! 97 core-y += arch/m68k/kernel/ arch/m68k/mm/
98 all: linux !! 98 libs-y += arch/m68k/lib/
99 !! 99
100 linux: vmlinux !! 100 core-$(CONFIG_Q40) += arch/m68k/q40/
101 @echo ' LINK $@' !! 101 core-$(CONFIG_AMIGA) += arch/m68k/amiga/
102 $(Q)ln -f $< $@ !! 102 core-$(CONFIG_ATARI) += arch/m68k/atari/
103 !! 103 core-$(CONFIG_MAC) += arch/m68k/mac/
104 define archhelp !! 104 core-$(CONFIG_HP300) += arch/m68k/hp300/
105 echo '* linux - Binary kernel image !! 105 core-$(CONFIG_APOLLO) += arch/m68k/apollo/
106 echo ' compatibility only, !! 106 core-$(CONFIG_MVME147) += arch/m68k/mvme147/
107 echo ' real kernel binary, !! 107 core-$(CONFIG_MVME16x) += arch/m68k/mvme16x/
108 echo ' find in the kernel !! 108 core-$(CONFIG_BVME6000) += arch/m68k/bvme6000/
109 endef !! 109 core-$(CONFIG_SUN3X) += arch/m68k/sun3x/ arch/m68k/sun3/
110 !! 110 core-$(CONFIG_SUN3) += arch/m68k/sun3/ arch/m68k/sun3/prom/
111 archheaders: !! 111 core-$(CONFIG_NATFEAT) += arch/m68k/emu/
112 $(Q)$(MAKE) -f $(srctree)/Makefile ARC !! 112 core-$(CONFIG_M68040) += arch/m68k/fpsp040/
113 !! 113 core-$(CONFIG_M68060) += arch/m68k/ifpsp060/
114 archprepare: !! 114 core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/
115 $(Q)$(MAKE) $(build)=$(HOST_DIR)/um in !! 115 core-$(CONFIG_M68000) += arch/m68k/68000/
116 !! 116 core-$(CONFIG_COLDFIRE) += arch/m68k/coldfire/
117 LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static !! 117
118 ifdef CONFIG_LD_SCRIPT_DYN !! 118
119 LINK-$(call gcc-min-version, 60100)$(CONFIG_CC !! 119 all: zImage
>> 120
>> 121 lilo: vmlinux
>> 122 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
>> 123 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
>> 124 cat vmlinux > $(INSTALL_PATH)/vmlinux
>> 125 cp System.map $(INSTALL_PATH)/System.map
>> 126 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
>> 127
>> 128 zImage compressed: vmlinux.gz
>> 129
>> 130 vmlinux.gz: vmlinux
>> 131
>> 132 ifndef CONFIG_KGDB
>> 133 cp vmlinux vmlinux.tmp
>> 134 $(STRIP) vmlinux.tmp
>> 135 gzip -9c vmlinux.tmp >vmlinux.gz
>> 136 rm vmlinux.tmp
>> 137 else
>> 138 gzip -9c vmlinux >vmlinux.gz
120 endif 139 endif
121 LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpa <<
122 <<
123 CFLAGS_NO_HARDENING := $(call cc-option, -fno- <<
124 -fno-stack-protector $(call cc-option, <<
125 140
126 # Options used by linker script !! 141 bzImage: vmlinux.bz2
127 export LDS_START := $(START) <<
128 export LDS_ELF_ARCH := $(ELF_ARCH) <<
129 export LDS_ELF_FORMAT := $(ELF_FORMAT) <<
130 142
131 # The wrappers will select whether using "mall !! 143 vmlinux.bz2: vmlinux
132 LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free <<
133 144
134 # Avoid binutils 2.39+ warnings by marking the !! 145 ifndef CONFIG_KGDB
135 # ignorning warnings for the kallsyms sections !! 146 cp vmlinux vmlinux.tmp
136 LDFLAGS_EXECSTACK = -z noexecstack !! 147 $(STRIP) vmlinux.tmp
137 ifeq ($(CONFIG_LD_IS_BFD),y) !! 148 bzip2 -1c vmlinux.tmp >vmlinux.bz2
138 LDFLAGS_EXECSTACK += $(call ld-option,--no-war !! 149 rm vmlinux.tmp
>> 150 else
>> 151 bzip2 -1c vmlinux >vmlinux.bz2
139 endif 152 endif
140 153
141 LD_FLAGS_CMDLINE = $(foreach opt,$(KBUILD_LDFL <<
142 <<
143 # Used by link-vmlinux.sh which has special su <<
144 export CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAP <<
145 <<
146 # When cleaning we don't include .config, so w <<
147 # TT or skas makefiles and don't clean skas_pt <<
148 CLEAN_FILES += linux x.i gmon.out <<
149 MRPROPER_FILES += $(HOST_DIR)/include/generate <<
150 <<
151 archclean: 154 archclean:
152 @find . \( -name '*.bb' -o -name '*.bb !! 155 rm -f vmlinux.gz vmlinux.bz2
153 -o -name '*.gcov' \) -type f - <<
154 156
155 export HEADER_ARCH SUBARCH USER_CFLAGS CFLAGS_ !! 157 install:
>> 158 sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
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