>> 1 #
>> 2 # i386/Makefile
>> 3 #
1 # This file is included by the global makefile 4 # This file is included by the global makefile so that you can add your own
2 # 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
3 # 8 #
4 # This file is subject to the terms and condit 9 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main 10 # License. See the file "COPYING" in the main directory of this archive
6 # for more details. 11 # for more details.
7 # 12 #
>> 13 # Copyright (C) 1994 by Linus Torvalds
>> 14 #
>> 15 # 19990713 Artur Skawina <skawina@geocities.com>
>> 16 # Added '-march' and '-mpreferred-stack-boundary' support
>> 17 #
8 18
9 LDFLAGS_vmlinux := -z norelro !! 19 LD=$(CROSS_COMPILE)ld -m elf_i386
10 ifeq ($(CONFIG_RELOCATABLE),y) !! 20 OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
11 LDFLAGS_vmlinux += -shared -Bsymbolic !! 21 LDFLAGS=-e stext
12 KBUILD_CFLAGS += -fPIE !! 22 LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS)
13 endif <<
14 ifeq ($(CONFIG_DYNAMIC_FTRACE),y) <<
15 LDFLAGS_vmlinux += --no-relax <<
16 KBUILD_CPPFLAGS += -DCC_USING_PATCHABL <<
17 ifeq ($(CONFIG_RISCV_ISA_C),y) <<
18 CC_FLAGS_FTRACE := -fpatchable-functio <<
19 else <<
20 CC_FLAGS_FTRACE := -fpatchable-functio <<
21 endif <<
22 endif <<
23 23
24 ifeq ($(CONFIG_CMODEL_MEDLOW),y) !! 24 CFLAGS += -pipe
25 KBUILD_CFLAGS_MODULE += -mcmodel=medany <<
26 endif <<
27 25
28 export BITS !! 26 # prevent gcc from keeping the stack 16 byte aligned
29 ifeq ($(CONFIG_ARCH_RV64I),y) !! 27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
30 BITS := 64 <<
31 UTS_MACHINE := riscv64 <<
32 28
33 KBUILD_CFLAGS += -mabi=lp64 !! 29 ifdef CONFIG_M386
34 KBUILD_AFLAGS += -mabi=lp64 !! 30 CFLAGS += -march=i386
>> 31 endif
35 32
36 KBUILD_LDFLAGS += -melf64lriscv !! 33 ifdef CONFIG_M486
>> 34 CFLAGS += -march=i486
>> 35 endif
37 36
38 KBUILD_RUSTFLAGS += -Ctarget-cpu=gener !! 37 ifdef CONFIG_M586
39 -Cno-redzone !! 38 CFLAGS += -march=i586
40 else !! 39 endif
41 BITS := 32 <<
42 UTS_MACHINE := riscv32 <<
43 40
44 KBUILD_CFLAGS += -mabi=ilp32 !! 41 ifdef CONFIG_M586TSC
45 KBUILD_AFLAGS += -mabi=ilp32 !! 42 CFLAGS += -march=i586
46 KBUILD_LDFLAGS += -melf32lriscv <<
47 endif 43 endif
48 44
49 ifndef CONFIG_RISCV_USE_LINKER_RELAXATION !! 45 ifdef CONFIG_M586MMX
50 KBUILD_CFLAGS += -mno-relax !! 46 CFLAGS += -march=i586
51 KBUILD_AFLAGS += -mno-relax <<
52 ifndef CONFIG_AS_IS_LLVM <<
53 KBUILD_CFLAGS += -Wa,-mno-relax <<
54 KBUILD_AFLAGS += -Wa,-mno-relax <<
55 endif 47 endif
56 # LLVM has an issue with target-features and L !! 48
57 # Ensure it is aware of linker relaxation with !! 49 ifdef CONFIG_M686
58 # be incorrect: https://github.com/llvm/llvm-p !! 50 CFLAGS += -march=i686
59 else ifeq ($(CONFIG_LTO_CLANG),y) <<
60 KBUILD_LDFLAGS += -mllvm -mattr=+c -ml <<
61 endif 51 endif
62 52
63 ifeq ($(CONFIG_SHADOW_CALL_STACK),y) !! 53 ifdef CONFIG_MPENTIUMIII
64 KBUILD_LDFLAGS += --no-relax-gp !! 54 CFLAGS += -march=i686
65 endif 55 endif
66 56
67 # ISA string setting !! 57 ifdef CONFIG_MPENTIUM4
68 riscv-march-$(CONFIG_ARCH_RV32I) := rv3 !! 58 CFLAGS += -march=i686
69 riscv-march-$(CONFIG_ARCH_RV64I) := rv6 !! 59 endif
70 riscv-march-$(CONFIG_FPU) := $(r <<
71 riscv-march-$(CONFIG_RISCV_ISA_C) := $(r <<
72 riscv-march-$(CONFIG_RISCV_ISA_V) := $(r <<
73 60
74 ifneq ($(CONFIG_RISCV_ISA_C),y) !! 61 ifdef CONFIG_MK6
75 KBUILD_RUSTFLAGS += -Ctarget-feature=- !! 62 CFLAGS += $(call check_gcc,-march=k6,-march=i586)
76 endif 63 endif
77 64
78 ifdef CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC !! 65 ifdef CONFIG_MK7
79 KBUILD_CFLAGS += -Wa,-misa-spec=2.2 !! 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4)
80 KBUILD_AFLAGS += -Wa,-misa-spec=2.2 <<
81 else <<
82 riscv-march-$(CONFIG_TOOLCHAIN_NEEDS_EXPLICIT_ <<
83 endif 67 endif
84 68
85 # Remove F,D,V from isa string for all. Keep e !! 69 ifdef CONFIG_MCRUSOE
86 # matching non-v and non-multi-letter extensio !! 70 CFLAGS += -march=i686
87 KBUILD_CFLAGS += -march=$(shell echo $(riscv-m !! 71 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
>> 72 endif
88 73
89 KBUILD_AFLAGS += -march=$(riscv-march-y) !! 74 ifdef CONFIG_MGEODE_LX
>> 75 CFLAGS += -march=i686
>> 76 endif
90 77
91 # For C code built with floating-point support !! 78 ifdef CONFIG_MWINCHIPC6
92 CC_FLAGS_FPU := -march=$(shell echo $(riscv-m !! 79 CFLAGS += -march=i586
>> 80 endif
93 81
94 KBUILD_CFLAGS += -mno-save-restore !! 82 ifdef CONFIG_MWINCHIP2
95 KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG !! 83 CFLAGS += -march=i586
>> 84 endif
96 85
97 ifeq ($(CONFIG_CMODEL_MEDLOW),y) !! 86 ifdef CONFIG_MWINCHIP3D
98 KBUILD_CFLAGS += -mcmodel=medlow !! 87 CFLAGS += -march=i586
99 endif 88 endif
100 ifeq ($(CONFIG_CMODEL_MEDANY),y) !! 89
101 KBUILD_CFLAGS += -mcmodel=medany !! 90 ifdef CONFIG_MCYRIXIII
>> 91 CFLAGS += $(call check_gcc,-march=c3,-march=i486)
>> 92 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0)
102 endif 93 endif
103 94
104 # Avoid generating .eh_frame sections. !! 95 ifdef CONFIG_MVIAC3_2
105 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl !! 96 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686)
>> 97 endif
106 98
107 # The RISC-V attributes frequently cause compa !! 99 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
108 # information, so just turn them off. !! 100 # a lot more stack due to the lack of sharing of stacklots.
109 KBUILD_CFLAGS += $(call cc-option,-mno-riscv-a !! 101 # CFLAGS += $(call if_gcc4,,$(call check_gcc,-fno-unit-at-a-time,))
110 KBUILD_AFLAGS += $(call cc-option,-mno-riscv-a !! 102 # Disable unit-at-a-time on gcc >= 4 too, because it removes seemingly unused
111 KBUILD_CFLAGS += $(call as-option,-Wa$(comma)- !! 103 # variables which are indeed module params.
112 KBUILD_AFLAGS += $(call as-option,-Wa$(comma)- !! 104 CFLAGS += $(call check_gcc,-fno-unit-at-a-time,)
113 105
114 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno- !! 106 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
115 KBUILD_AFLAGS_MODULE += $(call as-option,-Wa$( <<
116 107
117 # GCC versions that support the "-mstrict-alig !! 108 SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib
118 # unaligned accesses. While unaligned accesse !! 109
119 # RISC-V ISA, they're emulated by machine mode !! 110 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES)
120 # architectures. It's faster to have GCC emit !! 111 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a
121 ifneq ($(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCES <<
122 KBUILD_CFLAGS += $(call cc-option,-mstrict-ali <<
123 endif <<
124 112
125 ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) !! 113 ifdef CONFIG_MATH_EMULATION
126 prepare: stack_protector_prepare !! 114 SUBDIRS += arch/i386/math-emu
127 stack_protector_prepare: prepare0 !! 115 DRIVERS += arch/i386/math-emu/math.o
128 $(eval KBUILD_CFLAGS += -mstack-protec <<
129 -mstack-protec <<
130 -mstack-protec <<
131 awk '{if ($$2 == "TSK_ <<
132 includ <<
133 endif 116 endif
134 117
135 # arch specific predefines for sparse !! 118 arch/i386/kernel: dummy
136 CHECKFLAGS += -D__riscv -D__riscv_xlen=$(BITS) !! 119 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel
137 120
138 # Default target when executing plain make !! 121 arch/i386/mm: dummy
139 boot := arch/riscv/boot !! 122 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm
140 ifeq ($(CONFIG_XIP_KERNEL),y) <<
141 KBUILD_IMAGE := $(boot)/xipImage <<
142 else <<
143 ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAA <<
144 KBUILD_IMAGE := $(boot)/loader.bin <<
145 else <<
146 ifeq ($(CONFIG_EFI_ZBOOT),) <<
147 KBUILD_IMAGE := $(boot)/Image.gz <<
148 else <<
149 KBUILD_IMAGE := $(boot)/vmlinuz.efi <<
150 endif <<
151 endif <<
152 endif <<
153 123
154 boot := arc !! 124 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
155 boot-image-y := Ima <<
156 boot-image-$(CONFIG_KERNEL_BZIP2) := Ima <<
157 boot-image-$(CONFIG_KERNEL_GZIP) := Ima <<
158 boot-image-$(CONFIG_KERNEL_LZ4) := Ima <<
159 boot-image-$(CONFIG_KERNEL_LZMA) := Ima <<
160 boot-image-$(CONFIG_KERNEL_LZO) := Ima <<
161 boot-image-$(CONFIG_KERNEL_ZSTD) := Ima <<
162 boot-image-$(CONFIG_KERNEL_XZ) := Ima <<
163 ifdef CONFIG_RISCV_M_MODE <<
164 boot-image-$(CONFIG_ARCH_CANAAN) := loa <<
165 endif <<
166 boot-image-$(CONFIG_EFI_ZBOOT) := vml <<
167 boot-image-$(CONFIG_XIP_KERNEL) := xip <<
168 KBUILD_IMAGE := $(b <<
169 125
170 libs-y += arch/riscv/lib/ !! 126 vmlinux: arch/i386/vmlinux.lds
171 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/ <<
172 127
173 ifeq ($(KBUILD_EXTMOD),) !! 128 FORCE: ;
174 ifeq ($(CONFIG_MMU),y) <<
175 prepare: vdso_prepare <<
176 vdso_prepare: prepare0 <<
177 $(Q)$(MAKE) $(build)=arch/riscv/kernel <<
178 $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \ <<
179 $(build)=arch/riscv/kernel/com <<
180 129
181 endif !! 130 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \
182 endif !! 131 clean archclean archmrproper archdep
183 132
184 vdso-install-y += arch/riscv/ !! 133 zImage: vmlinux
185 vdso-install-$(CONFIG_COMPAT) += arch/riscv/ !! 134 @$(MAKEBOOT) zImage
186 135
187 BOOT_TARGETS := Image Image.gz Image.bz2 Image !! 136 bzImage: vmlinux
>> 137 @$(MAKEBOOT) bzImage
188 138
189 all: $(notdir $(KBUILD_IMAGE)) !! 139 compressed: zImage
190 140
191 loader.bin: loader !! 141 zlilo: vmlinux
192 Image.gz Image.bz2 Image.lz4 Image.lzma Image. !! 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo
193 143
194 $(BOOT_TARGETS): vmlinux !! 144 tmp:
195 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
196 @$(kecho) ' Kernel: $(boot)/$@ is rea !! 146 bzlilo: vmlinux
>> 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo
197 148
198 # the install target always installs KBUILD_IM !! 149 zdisk: vmlinux
199 # but keep the zinstall target for compatibili !! 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk
200 install zinstall: <<
201 $(call cmd,install) <<
202 151
203 PHONY += rv32_randconfig !! 152 bzdisk: vmlinux
204 rv32_randconfig: !! 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk
205 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
206 -f $(srctree)/Makefile randcon <<
207 154
208 PHONY += rv64_randconfig !! 155 install: vmlinux
209 rv64_randconfig: !! 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install
210 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
211 -f $(srctree)/Makefile randcon <<
212 157
213 PHONY += rv32_defconfig !! 158 archclean:
214 rv32_defconfig: !! 159 @$(MAKEBOOT) clean
215 $(Q)$(MAKE) -f $(srctree)/Makefile def <<
216 160
217 PHONY += rv32_nommu_virt_defconfig !! 161 archmrproper:
218 rv32_nommu_virt_defconfig: <<
219 $(Q)$(MAKE) -f $(srctree)/Makefile nom <<
220 162
221 define archhelp !! 163 archdep:
222 echo ' Image - Uncompressed !! 164 @$(MAKEBOOT) dep
223 echo ' Image.gz - Compressed kernel im <<
224 echo ' Image.bz2 - Compressed kernel im <<
225 echo ' Image.lz4 - Compressed kernel im <<
226 echo ' Image.lzma - Compressed kernel im <<
227 echo ' Image.lzo - Compressed kernel im <<
228 echo ' Image.zst - Compressed kernel im <<
229 echo ' Image.xz - Compressed kernel im <<
230 echo ' vmlinuz.efi - Compressed EFI kerne <<
231 echo ' Default when CONFIG_ <<
232 echo ' xipImage - Execute-in-place ker <<
233 echo ' Default when CONFIG_ <<
234 echo ' install - Install kernel using <<
235 echo ' (distribution) /sbin <<
236 echo ' $$(INSTALL_PATH)' <<
237 endef <<
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