1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # Author: Huacai Chen <chenhuacai@loongson.cn> !! 2 # m68k/Makefile
4 # Copyright (C) 2020-2022 Loongson Technology !! 3 #
5 !! 4 # This file is included by the global makefile so that you can add your own
6 boot := arch/loongarch/boot !! 5 # architecture-specific flags and dependencies.
>> 6 #
>> 7 # This file is subject to the terms and conditions of the GNU General Public
>> 8 # License. See the file "COPYING" in the main directory of this archive
>> 9 # for more details.
>> 10 #
>> 11 # Copyright (C) 1994 by Hamish Macdonald
>> 12 # Copyright (C) 2002,2011 Greg Ungerer <gerg@snapgear.com>
>> 13 #
>> 14
>> 15 KBUILD_DEFCONFIG := multi_defconfig
>> 16
>> 17 ifdef cross_compiling
>> 18 ifeq ($(CROSS_COMPILE),)
>> 19 CROSS_COMPILE := $(call cc-cross-prefix, \
>> 20 m68k-linux-gnu- m68k-linux- m68k-unknown-linux-gnu-)
>> 21 endif
>> 22 endif
>> 23
>> 24 #
>> 25 # Enable processor type. Ordering of these is important - we want to
>> 26 # use the minimum processor type of the range we support. The logic
>> 27 # for 680x0 will only allow use of the -m68060 or -m68040 if no other
>> 28 # 680x0 type is specified - and no option is specified for 68030 or
>> 29 # 68020. The other m68k/ColdFire types always specify some type of
>> 30 # compiler cpu type flag.
>> 31 #
>> 32 ifndef CONFIG_M68040
>> 33 cpuflags-$(CONFIG_M68060) = -m68060
>> 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)
7 60
8 KBUILD_DEFCONFIG := loongson3_defconfig !! 61 KBUILD_AFLAGS += $(cpuflags-y)
9 KBUILD_DTBS := dtbs !! 62 KBUILD_CFLAGS += $(cpuflags-y)
10 63
11 image-name-y := vmlinux !! 64 KBUILD_CFLAGS += -pipe -ffreestanding
12 image-name-$(CONFIG_EFI_ZBOOT) := vmlinuz <<
13 65
14 ifndef CONFIG_EFI_STUB !! 66 ifdef CONFIG_MMU
15 KBUILD_IMAGE := $(boot)/vmlinux.elf !! 67 KBUILD_CFLAGS += -ffixed-a2
16 else 68 else
17 KBUILD_IMAGE := $(boot)/$(image-name-y).efi !! 69 # we can use a m68k-linux-gcc toolchain with these in place
>> 70 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"
>> 71 KBUILD_CPPFLAGS += -D__uClinux__
18 endif 72 endif
19 73
20 # !! 74 KBUILD_LDFLAGS := -m m68kelf
21 # Select the object file format to substitute <<
22 # <<
23 64bit-tool-archpref = loongarch64 <<
24 32bit-bfd = elf32-loongarch <<
25 64bit-bfd = elf64-loongarch <<
26 32bit-emul = elf32loongarch <<
27 64bit-emul = elf64loongarch <<
28 <<
29 CC_FLAGS_FPU := -mfpu=64 <<
30 CC_FLAGS_NO_FPU := -msoft-float <<
31 75
32 ifdef CONFIG_UNWINDER_ORC !! 76 ifdef CONFIG_SUN3
33 orc_hash_h := arch/$(SRCARCH)/include/generate !! 77 LDFLAGS_vmlinux = -N
34 orc_hash_sh := $(srctree)/scripts/orc_hash.sh <<
35 targets += $(orc_hash_h) <<
36 quiet_cmd_orc_hash = GEN $@ <<
37 cmd_orc_hash = mkdir -p $(dir $@); \ <<
38 $(CONFIG_SHELL) $(orc_has <<
39 $(orc_hash_h): $(srctree)/arch/loongarch/inclu <<
40 $(call if_changed,orc_hash) <<
41 archprepare: $(orc_hash_h) <<
42 endif 78 endif
43 79
44 ifdef CONFIG_DYNAMIC_FTRACE !! 80 CHECKFLAGS += -D__mc68000__
45 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI <<
46 CC_FLAGS_FTRACE := -fpatchable-function-entry= <<
47 endif <<
48 81
49 ifdef CONFIG_64BIT <<
50 tool-archpref = $(64bit-tool-archpre <<
51 UTS_MACHINE := loongarch64 <<
52 endif <<
53 82
54 ifneq ($(SUBARCH),$(ARCH)) !! 83 ifdef CONFIG_KGDB
55 ifeq ($(CROSS_COMPILE),) !! 84 # If configured for kgdb support, include debugging infos and keep the
56 CROSS_COMPILE := $(call cc-cross-prefix, $ !! 85 # frame pointer
57 endif !! 86 KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
58 endif 87 endif
59 88
60 ifdef CONFIG_64BIT <<
61 ld-emul = $(64bit-emul) <<
62 cflags-y += -mabi=lp64s <<
63 endif <<
64 <<
65 cflags-y += -pipe $(CC_ <<
66 LDFLAGS_vmlinux += -static -n <<
67 <<
68 # When the assembler supports explicit relocat <<
69 # GCC may have -mexplicit-relocs off by defaul <<
70 # assembler, so we force it via an option. <<
71 # <<
72 # When the assembler does not supports explici <<
73 # it. Disable it if the compiler supports it. <<
74 # 89 #
75 # The combination of a "new" assembler and "ol !! 90 # Select the assembler head startup code. Order is important. The default
76 # the rarity of this combo and the extra compl !! 91 # head code is first, processor specific selections can override it after.
77 # Either upgrade the compiler or downgrade the <<
78 # out if it is the case (by probing for the mo <<
79 # compilers in this case would have support). <<
80 # 92 #
81 # Also, -mdirect-extern-access is useful in ca !! 93 head-y := arch/m68k/kernel/head.o
82 # relocs, for avoiding unnecessary GOT accesse !! 94 head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
83 # support though. !! 95 head-$(CONFIG_M68000) := arch/m68k/68000/head.o
84 ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS !! 96 head-$(CONFIG_COLDFIRE) := arch/m68k/coldfire/head.o
85 cflags-y += $(call cc-o <<
86 KBUILD_CFLAGS_KERNEL += $(call cc-o <<
87 KBUILD_CFLAGS_KERNEL += $(call cc-o <<
88 KBUILD_AFLAGS_MODULE += $(call cc-o <<
89 KBUILD_CFLAGS_MODULE += $(call cc-o <<
90 else <<
91 cflags-y += $(call cc-o <<
92 KBUILD_AFLAGS_KERNEL += -Wa,-mla-gl <<
93 KBUILD_CFLAGS_KERNEL += -Wa,-mla-gl <<
94 KBUILD_AFLAGS_MODULE += -Wa,-mla-gl <<
95 KBUILD_CFLAGS_MODULE += -fplt -Wa,- <<
96 endif <<
97 97
98 KBUILD_AFLAGS += $(call cc-o !! 98 libs-y += arch/m68k/lib/
99 KBUILD_CFLAGS += $(call cc-o <<
100 KBUILD_AFLAGS += $(call cc-o <<
101 KBUILD_CFLAGS += $(call cc-o <<
102 99
103 ifdef CONFIG_OBJTOOL <<
104 KBUILD_CFLAGS += -fno-jump-t <<
105 endif <<
106 100
107 KBUILD_RUSTFLAGS += --target=lo !! 101 all: zImage
108 KBUILD_RUSTFLAGS_KERNEL += -Zdirect-ac <<
109 KBUILD_RUSTFLAGS_MODULE += -Zdirect-ac <<
110 102
111 ifeq ($(CONFIG_RELOCATABLE),y) !! 103 lilo: vmlinux
112 KBUILD_CFLAGS_KERNEL += -fPIE !! 104 if [ -f $(INSTALL_PATH)/vmlinux ]; then mv -f $(INSTALL_PATH)/vmlinux $(INSTALL_PATH)/vmlinux.old; fi
113 KBUILD_RUSTFLAGS_KERNEL += -Crelocatio !! 105 if [ -f $(INSTALL_PATH)/System.map ]; then mv -f $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
114 LDFLAGS_vmlinux += -static -pi !! 106 cat vmlinux > $(INSTALL_PATH)/vmlinux
115 endif !! 107 cp System.map $(INSTALL_PATH)/System.map
116 !! 108 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
117 cflags-y += $(call cc-option, -mno-check-zero- <<
118 <<
119 ifndef CONFIG_KASAN <<
120 cflags-y += -fno-builtin-memcpy -fno-builtin-m <<
121 endif <<
122 109
123 load-y = 0x9000000000200000 !! 110 zImage compressed: vmlinux.gz
124 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- <<
125 111
126 drivers-$(CONFIG_PCI) += arch/loonga !! 112 vmlinux.gz: vmlinux
127 113
128 KBUILD_AFLAGS += $(cflags-y) !! 114 ifndef CONFIG_KGDB
129 KBUILD_CFLAGS += $(cflags-y) !! 115 cp vmlinux vmlinux.tmp
130 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo !! 116 $(STRIP) vmlinux.tmp
131 !! 117 $(KGZIP) -9c vmlinux.tmp >vmlinux.gz
132 # This is required to get dwarf unwinding tabl !! 118 rm vmlinux.tmp
133 # instead of .eh_frame so we don't discard the <<
134 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
135 <<
136 ifdef CONFIG_ARCH_STRICT_ALIGN <<
137 # Don't emit unaligned accesses. <<
138 # Not all LoongArch cores support unaligned ac <<
139 # rely on others to provide emulation for thes <<
140 KBUILD_CFLAGS += $(call cc-option,-mstrict-ali <<
141 else 119 else
142 # Optimise for performance on hardware support !! 120 $(KGZIP) -9c vmlinux >vmlinux.gz
143 KBUILD_CFLAGS += $(call cc-option,-mno-strict- <<
144 endif <<
145 <<
146 KBUILD_CFLAGS += -isystem $(shell $(CC) -print <<
147 <<
148 KBUILD_LDFLAGS += -m $(ld-emul) <<
149 <<
150 ifdef need-compiler <<
151 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) <<
152 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL <<
153 sed -e "s/^\#define /-D'/" -e "s/ /'=' <<
154 endif 121 endif
155 122
156 libs-y += arch/loongarch/lib/ !! 123 bzImage: vmlinux.bz2
157 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ <<
158 <<
159 drivers-y += arch/loongarch/cryp <<
160 124
161 # suspend and hibernation support !! 125 vmlinux.bz2: vmlinux
162 drivers-$(CONFIG_PM) += arch/loongarch/powe <<
163 126
164 ifeq ($(KBUILD_EXTMOD),) !! 127 ifndef CONFIG_KGDB
165 prepare: vdso_prepare !! 128 cp vmlinux vmlinux.tmp
166 vdso_prepare: prepare0 !! 129 $(STRIP) vmlinux.tmp
167 $(Q)$(MAKE) $(build)=arch/loongarch/vd !! 130 $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2
>> 131 rm vmlinux.tmp
>> 132 else
>> 133 $(KBZIP2) -1c vmlinux >vmlinux.bz2
168 endif 134 endif
169 135
170 vdso-install-y += arch/loongarch/vdso/vdso.so. !! 136 CLEAN_FILES += vmlinux.gz vmlinux.bz2
171 <<
172 all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTB <<
173 <<
174 vmlinuz.efi: vmlinux.efi <<
175 137
176 vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux !! 138 archheaders:
177 $(Q)$(MAKE) $(build)=$(boot) $(bootvar !! 139 $(Q)$(MAKE) $(build)=arch/m68k/kernel/syscalls all
178 140
>> 141 install: KBUILD_IMAGE := vmlinux.gz
179 install: 142 install:
180 $(Q)install -D -m 755 $(KBUILD_IMAGE) !! 143 $(call cmd,install)
181 $(Q)install -D -m 644 .config $(INSTAL <<
182 $(Q)install -D -m 644 System.map $(INS <<
183 <<
184 define archhelp <<
185 echo ' install - install <<
186 echo <<
187 endef <<
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.