1 # 1 #
2 # This file is subject to the terms and condit 2 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main 3 # License. See the file "COPYING" in the main directory of this archive
4 # for more details. 4 # for more details.
5 # 5 #
6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Bae 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
7 # DECStation modifications by Paul M. Antoine, 7 # DECStation modifications by Paul M. Antoine, 1996
8 # Copyright (C) 2002, 2003, 2004 Maciej W. Ro 8 # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
9 # 9 #
10 # This file is included by the global makefile 10 # This file is included by the global makefile so that you can add your own
11 # architecture-specific flags and dependencies !! 11 # architecture-specific flags and dependencies. Remember to do have actions
>> 12 # for "archclean" cleaning up for this architecture.
12 # 13 #
13 14
14 archscripts: scripts_basic 15 archscripts: scripts_basic
15 $(Q)$(MAKE) $(build)=arch/mips/tools e <<
16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) <<
17 $(Q)$(MAKE) $(build)=arch/mips/tools l <<
18 endif <<
19 $(Q)$(MAKE) $(build)=arch/mips/boot/to 16 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
20 17
21 KBUILD_DEFCONFIG := 32r2el_defconfig 18 KBUILD_DEFCONFIG := 32r2el_defconfig
22 KBUILD_DTBS := dtbs 19 KBUILD_DTBS := dtbs
23 20
24 # 21 #
25 # Select the object file format to substitute 22 # Select the object file format to substitute into the linker script.
26 # 23 #
27 ifdef CONFIG_CPU_LITTLE_ENDIAN 24 ifdef CONFIG_CPU_LITTLE_ENDIAN
28 32bit-tool-archpref = mipsel 25 32bit-tool-archpref = mipsel
29 64bit-tool-archpref = mips64el 26 64bit-tool-archpref = mips64el
30 32bit-bfd = elf32-tradlittlemips 27 32bit-bfd = elf32-tradlittlemips
31 64bit-bfd = elf64-tradlittlemips 28 64bit-bfd = elf64-tradlittlemips
32 32bit-emul = elf32ltsmip 29 32bit-emul = elf32ltsmip
33 64bit-emul = elf64ltsmip 30 64bit-emul = elf64ltsmip
34 else 31 else
35 32bit-tool-archpref = mips 32 32bit-tool-archpref = mips
36 64bit-tool-archpref = mips64 33 64bit-tool-archpref = mips64
37 32bit-bfd = elf32-tradbigmips 34 32bit-bfd = elf32-tradbigmips
38 64bit-bfd = elf64-tradbigmips 35 64bit-bfd = elf64-tradbigmips
39 32bit-emul = elf32btsmip 36 32bit-emul = elf32btsmip
40 64bit-emul = elf64btsmip 37 64bit-emul = elf64btsmip
41 endif 38 endif
42 39
43 ifdef CONFIG_32BIT 40 ifdef CONFIG_32BIT
44 tool-archpref = $(32bit-tool-archpre 41 tool-archpref = $(32bit-tool-archpref)
45 UTS_MACHINE := mips 42 UTS_MACHINE := mips
46 endif 43 endif
47 ifdef CONFIG_64BIT 44 ifdef CONFIG_64BIT
48 tool-archpref = $(64bit-tool-archpre 45 tool-archpref = $(64bit-tool-archpref)
49 UTS_MACHINE := mips64 46 UTS_MACHINE := mips64
50 endif 47 endif
51 48
52 ifdef cross_compiling !! 49 ifneq ($(SUBARCH),$(ARCH))
53 ifeq ($(CROSS_COMPILE),) 50 ifeq ($(CROSS_COMPILE),)
54 CROSS_COMPILE := $(call cc-cross-prefix, $ 51 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
55 endif 52 endif
56 endif 53 endif
57 54
58 ifdef CONFIG_FUNCTION_GRAPH_TRACER 55 ifdef CONFIG_FUNCTION_GRAPH_TRACER
59 ifndef KBUILD_MCOUNT_RA_ADDRESS 56 ifndef KBUILD_MCOUNT_RA_ADDRESS
60 ifeq ($(call cc-option-yn,-mmcount-ra-addr 57 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
61 cflags-y += -mmcount-ra-address -DKBUILD 58 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
62 endif 59 endif
63 endif 60 endif
64 endif 61 endif
65 cflags-y += $(call cc-option, -mno-check-zero- 62 cflags-y += $(call cc-option, -mno-check-zero-division)
66 63
67 ifdef CONFIG_32BIT 64 ifdef CONFIG_32BIT
68 ld-emul = $(32bit-emul) 65 ld-emul = $(32bit-emul)
69 vmlinux-32 = vmlinux 66 vmlinux-32 = vmlinux
70 vmlinux-64 = vmlinux.64 67 vmlinux-64 = vmlinux.64
71 68
72 cflags-y += -mabi=32 69 cflags-y += -mabi=32
73 endif 70 endif
74 71
75 ifdef CONFIG_64BIT 72 ifdef CONFIG_64BIT
76 ld-emul = $(64bit-emul) 73 ld-emul = $(64bit-emul)
77 vmlinux-32 = vmlinux.32 74 vmlinux-32 = vmlinux.32
78 vmlinux-64 = vmlinux 75 vmlinux-64 = vmlinux
79 76
80 cflags-y += -mabi=64 77 cflags-y += -mabi=64
81 endif 78 endif
82 79
83 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-3 80 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
84 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-6 81 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 82 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
86 83
87 # 84 #
88 # GCC uses -G 0 -mabicalls -fpic as default. 85 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
89 # code since it only slows down the whole thin 86 # code since it only slows down the whole thing. At some point we might make
90 # use of global pointer optimizations but thei 87 # use of global pointer optimizations but their use of $28 conflicts with
91 # the current pointer optimization. 88 # the current pointer optimization.
92 # 89 #
93 # The DECStation requires an ECOFF kernel for 90 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
94 # machines may also. Since BFD is incredibly 91 # machines may also. Since BFD is incredibly buggy with respect to
95 # crossformat linking we rely on the elf2ecoff 92 # crossformat linking we rely on the elf2ecoff tool for format conversion.
96 # 93 #
97 cflags-y += -G 0 -mno-a 94 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
98 cflags-y += -msoft-floa !! 95 cflags-y += -msoft-float
99 LDFLAGS_vmlinux += -G 0 -stati 96 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
100 KBUILD_AFLAGS_MODULE += -mlong-call 97 KBUILD_AFLAGS_MODULE += -mlong-calls
101 KBUILD_CFLAGS_MODULE += -mlong-call 98 KBUILD_CFLAGS_MODULE += -mlong-calls
102 99
103 ifeq ($(CONFIG_RELOCATABLE),y) 100 ifeq ($(CONFIG_RELOCATABLE),y)
104 LDFLAGS_vmlinux += --emit-relo 101 LDFLAGS_vmlinux += --emit-relocs
105 endif 102 endif
106 103
>> 104 #
>> 105 # pass -msoft-float to GAS if it supports it. However on newer binutils
>> 106 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
>> 107 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 108 #
>> 109 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
>> 110 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
>> 111 endif
>> 112
107 cflags-y += -ffreestanding 113 cflags-y += -ffreestanding
108 114
>> 115 #
>> 116 # We explicitly add the endianness specifier if needed, this allows
>> 117 # to compile kernels with a toolchain for the other endianness. We
>> 118 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
>> 119 # when fed the toolchain default!
>> 120 #
>> 121 # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
>> 122 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
>> 123 # are used, so we kludge that here. A bug has been filed at
>> 124 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
>> 125 #
>> 126 # clang doesn't suffer from these issues and our checks against -dumpmachine
>> 127 # don't work so well when cross compiling, since without providing --target
>> 128 # clang's output will be based upon the build machine. So for clang we simply
>> 129 # unconditionally specify -EB or -EL as appropriate.
>> 130 #
>> 131 ifeq ($(cc-name),clang)
109 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 132 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
110 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 133 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
>> 134 else
>> 135 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
>> 136 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
>> 137 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
>> 138 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
>> 139 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
>> 140 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
>> 141 endif
111 142
112 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-o 143 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
113 -fno-omit-f 144 -fno-omit-frame-pointer
114 145
115 # Some distribution-specific toolchains might 146 # Some distribution-specific toolchains might pass the -fstack-check
116 # option during the build, which adds a simple 147 # option during the build, which adds a simple stack-probe at the beginning
117 # of every function. This stack probe is to e 148 # of every function. This stack probe is to ensure that there is enough
118 # stack space, else a SEGV is generated. This 149 # stack space, else a SEGV is generated. This is not desirable for MIPS
119 # as kernel stacks are small, placed in unmapp 150 # as kernel stacks are small, placed in unmapped virtual memory, and do not
120 # grow when overflowed. Especially on SGI IP2 151 # grow when overflowed. Especially on SGI IP27 platforms, this check will
121 # lead to a NULL pointer dereference in _raw_s 152 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
122 # 153 #
123 # In disassembly, this stack probe appears at 154 # In disassembly, this stack probe appears at the top of a function as:
124 # sd zero,<offset>(sp) 155 # sd zero,<offset>(sp)
125 # Where <offset> is a negative value. 156 # Where <offset> is a negative value.
126 # 157 #
127 cflags-y += -fno-stack-check 158 cflags-y += -fno-stack-check
128 159
129 # binutils from v2.35 when built with --enable <<
130 # supports an -mfix-loongson3-llsc flag which <<
131 # instruction to work around a CPU bug (see __ <<
132 # for a description). <<
133 # <<
134 # We disable this in order to prevent the asse <<
135 # instruction that labels refer to, ie. if we <<
136 # <<
137 # 1: ll v0, 0(a0) <<
138 # <<
139 # ...then with the assembler fix applied the l <<
140 # instruction inserted by the assembler, and i <<
141 # exception table the table would no longer co <<
142 # instruction. <<
143 # <<
144 # Avoid this by explicitly disabling that asse <<
145 # <<
146 cflags-y += $(call cc-option,-Wa$(comma)-mno-f <<
147 <<
148 # 160 #
149 # CPU-dependent compiler/assembler options for 161 # CPU-dependent compiler/assembler options for optimization.
150 # 162 #
151 cflags-$(CONFIG_CPU_R3000) += $(call cc-o !! 163 cflags-$(CONFIG_CPU_R3000) += -march=r3000
152 cflags-$(CONFIG_CPU_R4300) += $(call cc-o !! 164 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
153 cflags-$(CONFIG_CPU_R4X00) += $(call cc-o !! 165 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
154 cflags-$(CONFIG_CPU_TX49XX) += $(call cc-o !! 166 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
>> 167 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
>> 168 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
155 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips 169 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
156 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips 170 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
157 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips <<
158 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips 171 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
159 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips 172 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
160 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips 173 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap
161 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips <<
162 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips 174 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
163 cflags-$(CONFIG_CPU_P5600) += $(call cc-o !! 175 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
164 -Wa,--trap -modd-spreg !! 176 cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
165 cflags-$(CONFIG_CPU_R5000) += $(call cc-o <<
166 -Wa,--trap 177 -Wa,--trap
167 cflags-$(CONFIG_CPU_R5500) += $(call cc-o !! 178 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
168 -Wa,--trap 179 -Wa,--trap
169 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-o !! 180 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
170 -Wa,--trap 181 -Wa,--trap
171 cflags-$(CONFIG_CPU_RM7000) += $(call cc-o !! 182 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
172 -Wa,--trap 183 -Wa,--trap
173 cflags-$(CONFIG_CPU_SB1) += $(call cc-o !! 184 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
174 -Wa,--trap 185 -Wa,--trap
175 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 186 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
176 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 187 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
177 cflags-$(CONFIG_CPU_R10000) += $(call cc-o !! 188 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
>> 189 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
178 -Wa,--trap 190 -Wa,--trap
179 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -march=o !! 191 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 192 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 193 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
>> 194 endif
180 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix- 195 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
181 cflags-$(CONFIG_CPU_BMIPS) += -march=mips !! 196 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
182 <<
183 cflags-$(CONFIG_CPU_LOONGSON2E) += \ <<
184 $(call cc-option,-marc <<
185 cflags-$(CONFIG_CPU_LOONGSON2F) += \ <<
186 $(call cc-option,-marc <<
187 # Some -march= flags enable MMI instructions, <<
188 # support being enabled alongside -msoft-float <<
189 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc- <<
190 cflags-$(CONFIG_CPU_LOONGSON64) += \ <<
191 $(call cc-option,-marc <<
192 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-o <<
193 197
194 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(c 198 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
195 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(c 199 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
196 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(c 200 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
197 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS <<
198 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-m <<
199 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,- <<
200 endif <<
201 <<
202 # <<
203 # Some versions of binutils, not currently mai <<
204 # an -mfix-loongson3-llsc flag which emits a s <<
205 # to work around a CPU bug (see __SYNC_loongso <<
206 # description). <<
207 # <<
208 # We disable this in order to prevent the asse <<
209 # instruction that labels refer to, ie. if we <<
210 # <<
211 # 1: ll v0, 0(a0) <<
212 # <<
213 # ...then with the assembler fix applied the l <<
214 # instruction inserted by the assembler, and i <<
215 # exception table the table would no longer co <<
216 # instruction. <<
217 # <<
218 # Avoid this by explicitly disabling that asse <<
219 # binutils does not merge support for the flag <<
220 # this later - for now it ensures vendor toolc <<
221 # <<
222 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-o <<
223 201
224 # For smartmips configurations, there are hund 202 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
225 # in assembly and header files. smartmips is o 203 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
226 # and there is no support for 64-bit. Various 204 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
227 # similar directives in the kernel will spam t 205 # similar directives in the kernel will spam the build logs with the following warnings:
228 # Warning: the `smartmips' extension requires 206 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
229 # or 207 # or
230 # Warning: the 64-bit MIPS architecture does n 208 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
231 # Pass -Wa,--no-warn to disable all assembler 209 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
232 # been fixed properly. 210 # been fixed properly.
233 mips-cflags := $(c 211 mips-cflags := $(cflags-y)
234 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 212 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
235 smartmips-ase := $(c 213 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
236 cflags-$(smartmips-ase) += -ms 214 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
237 endif 215 endif
238 ifeq ($(CONFIG_CPU_MICROMIPS),y) 216 ifeq ($(CONFIG_CPU_MICROMIPS),y)
239 micromips-ase := $(c 217 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
240 cflags-$(micromips-ase) += -mm 218 cflags-$(micromips-ase) += -mmicromips
241 endif 219 endif
242 ifeq ($(CONFIG_CPU_HAS_MSA),y) 220 ifeq ($(CONFIG_CPU_HAS_MSA),y)
243 toolchain-msa := $(c 221 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
244 cflags-$(toolchain-msa) += -DT 222 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
245 endif 223 endif
246 toolchain-virt := $(c 224 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
247 cflags-$(toolchain-virt) += -DT 225 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
248 # For -mmicromips, use -Wa,-fatal-warnings to 226 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
249 # only warns 227 # only warns
250 xpa-cflags-y := $(m 228 xpa-cflags-y := $(mips-cflags)
251 xpa-cflags-$(micromips-ase) += -mm 229 xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
252 toolchain-xpa := $(c 230 toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
253 cflags-$(toolchain-xpa) += -DT 231 cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
254 toolchain-crc := $(c 232 toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
255 cflags-$(toolchain-crc) += -DT 233 cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
256 toolchain-dsp := $(c <<
257 cflags-$(toolchain-dsp) += -DT <<
258 toolchain-ginv := $(c <<
259 cflags-$(toolchain-ginv) += -DT <<
260 234
261 # 235 #
262 # Firmware support 236 # Firmware support
263 # 237 #
264 libs-$(CONFIG_FW_ARC) += arch/mips/f 238 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
265 libs-$(CONFIG_FW_CFE) += arch/mips/f 239 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
266 libs-$(CONFIG_FW_SNIPROM) += arch/mips/f 240 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
267 libs-y += arch/mips/f 241 libs-y += arch/mips/fw/lib/
268 242
269 # 243 #
270 # Kernel compression 244 # Kernel compression
271 # 245 #
272 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 246 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
273 COMPRESSION_FNAME = vmlinuz 247 COMPRESSION_FNAME = vmlinuz
274 else 248 else
275 COMPRESSION_FNAME = vmlinux 249 COMPRESSION_FNAME = vmlinux
276 endif 250 endif
277 251
278 # 252 #
279 # Board-dependent options and extra files 253 # Board-dependent options and extra files
280 # 254 #
281 include $(srctree)/arch/mips/Kbuild.platforms !! 255 include arch/mips/Kbuild.platforms
282 256
283 ifdef CONFIG_PHYSICAL_START 257 ifdef CONFIG_PHYSICAL_START
284 load-y = $(CO 258 load-y = $(CONFIG_PHYSICAL_START)
285 endif 259 endif
286 260
287 entry-y = $(shell $(ob !! 261 # Sign-extend the entry point to 64 bits if retrieved as a 32-bit number.
>> 262 entry-y = $(shell $(OBJDUMP) -f vmlinux 2>/dev/null \
>> 263 | sed -n '/^start address / { \
>> 264 s/^.* //; \
>> 265 s/0x\([0-7].......\)$$/0x00000000\1/; \
>> 266 s/0x\(........\)$$/0xffffffff\1/; p }')
>> 267
288 cflags-y += -I$(srctree 268 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
289 drivers-$(CONFIG_PCI) += arch/mips/p 269 drivers-$(CONFIG_PCI) += arch/mips/pci/
290 270
291 # 271 #
292 # Automatically detect the build format. By de 272 # Automatically detect the build format. By default we choose
293 # the elf format according to the load address 273 # the elf format according to the load address.
294 # We can always force a build with a 64-bits s 274 # We can always force a build with a 64-bits symbol format by
295 # passing 'KBUILD_SYM32=no' option to the make 275 # passing 'KBUILD_SYM32=no' option to the make's command line.
296 # 276 #
297 ifdef CONFIG_64BIT 277 ifdef CONFIG_64BIT
298 ifndef KBUILD_SYM32 278 ifndef KBUILD_SYM32
299 ifeq ($(shell expr $(load-y) \< 0xffffffff 279 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
300 KBUILD_SYM32 = $(call cc-option-yn, -msy !! 280 KBUILD_SYM32 = y
301 endif 281 endif
302 endif 282 endif
303 283
304 ifeq ($(KBUILD_SYM32), y) !! 284 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
305 cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD !! 285 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
306 else 286 else
307 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 287 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
308 $(error CONFIG_CPU_DADDI_WORKAROUNDS uns 288 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
309 endif 289 endif
310 endif 290 endif
311 endif 291 endif
312 292
313 # When linking a 32-bit executable the LLVM li 293 # When linking a 32-bit executable the LLVM linker cannot cope with a
314 # 32-bit load address that has been sign-exten 294 # 32-bit load address that has been sign-extended to 64 bits. Simply
315 # remove the upper 32 bits then, as it is safe 295 # remove the upper 32 bits then, as it is safe to do so with other
316 # linkers. 296 # linkers.
317 ifdef CONFIG_64BIT 297 ifdef CONFIG_64BIT
318 load-ld = $(load-y) 298 load-ld = $(load-y)
319 else 299 else
320 load-ld = $(subst 0xff 300 load-ld = $(subst 0xffffffff,0x,$(load-y))
321 endif 301 endif
322 302
323 KBUILD_AFLAGS += $(cflags-y) 303 KBUILD_AFLAGS += $(cflags-y)
324 KBUILD_CFLAGS += $(cflags-y) 304 KBUILD_CFLAGS += $(cflags-y)
325 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo 305 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
326 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoff 306 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
327 307
328 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- 308 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
329 LINKER_LOAD_ADDRESS=$(load-l 309 LINKER_LOAD_ADDRESS=$(load-ld) \
330 VMLINUX_ENTRY_ADDRESS=$(entr 310 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
331 PLATFORM="$(platform-y)" \ 311 PLATFORM="$(platform-y)" \
332 ITS_INPUTS="$(its-y)" 312 ITS_INPUTS="$(its-y)"
333 ifdef CONFIG_32BIT 313 ifdef CONFIG_32BIT
334 bootvars-y += ADDR_BITS=32 314 bootvars-y += ADDR_BITS=32
335 endif 315 endif
336 ifdef CONFIG_64BIT 316 ifdef CONFIG_64BIT
337 bootvars-y += ADDR_BITS=64 317 bootvars-y += ADDR_BITS=64
338 endif 318 endif
339 319
340 # This is required to get dwarf unwinding tabl 320 # This is required to get dwarf unwinding tables into .debug_frame
341 # instead of .eh_frame so we don't discard the 321 # instead of .eh_frame so we don't discard them.
342 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl 322 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
343 323
344 KBUILD_LDFLAGS += -m $(ld-emul) 324 KBUILD_LDFLAGS += -m $(ld-emul)
345 325
346 ifdef need-compiler !! 326 ifdef CONFIG_MIPS
347 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 327 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
348 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL !! 328 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
349 sed -e "s/^\#define /-D'/" -e "s/ /'=' 329 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
350 endif 330 endif
351 331
352 OBJCOPYFLAGS += --remove-section=.r 332 OBJCOPYFLAGS += --remove-section=.reginfo
353 333
>> 334 head-y := arch/mips/kernel/head.o
>> 335
354 libs-y += arch/mips/lib/ 336 libs-y += arch/mips/lib/
355 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/ma !! 337 libs-y += arch/mips/math-emu/
356 338
357 drivers-y += arch/mips/c !! 339 # See arch/mips/Kbuild for content of core part of the kernel
>> 340 core-y += arch/mips/
>> 341
>> 342 drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
>> 343 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
358 344
359 # suspend and hibernation support 345 # suspend and hibernation support
360 drivers-$(CONFIG_PM) += arch/mips/power/ 346 drivers-$(CONFIG_PM) += arch/mips/power/
361 347
362 # boot image targets (arch/mips/boot/) 348 # boot image targets (arch/mips/boot/)
363 boot-y := vmlinux.bin 349 boot-y := vmlinux.bin
364 boot-y += vmlinux.ecoff 350 boot-y += vmlinux.ecoff
365 boot-y += vmlinux.srec 351 boot-y += vmlinux.srec
>> 352 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
366 boot-y += uImage 353 boot-y += uImage
367 boot-y += uImage.bin 354 boot-y += uImage.bin
368 boot-y += uImage.bz2 355 boot-y += uImage.bz2
369 boot-y += uImage.gz 356 boot-y += uImage.gz
370 boot-y += uImage.lzma 357 boot-y += uImage.lzma
371 boot-y += uImage.lzo 358 boot-y += uImage.lzo
>> 359 endif
372 boot-y += vmlinux.itb 360 boot-y += vmlinux.itb
373 boot-y += vmlinux.gz.itb 361 boot-y += vmlinux.gz.itb
374 boot-y += vmlinux.bz2.itb 362 boot-y += vmlinux.bz2.itb
375 boot-y += vmlinux.lzma.itb 363 boot-y += vmlinux.lzma.itb
376 boot-y += vmlinux.lzo.itb 364 boot-y += vmlinux.lzo.itb
377 365
378 # compressed boot image targets (arch/mips/boo 366 # compressed boot image targets (arch/mips/boot/compressed/)
379 bootz-y := vmlinuz 367 bootz-y := vmlinuz
380 bootz-y += vmlinuz.bin 368 bootz-y += vmlinuz.bin
381 bootz-y += vmlinuz.ecoff 369 bootz-y += vmlinuz.ecoff
382 bootz-y += vmlinuz.srec 370 bootz-y += vmlinuz.srec
>> 371 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
383 bootz-y += uzImage.bin 372 bootz-y += uzImage.bin
384 bootz-y += vmlinuz.itb !! 373 endif
>> 374
>> 375 ifdef CONFIG_LASAT
>> 376 rom.bin rom.sw: vmlinux
>> 377 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
>> 378 $(bootvars-y) $@
>> 379 endif
385 380
386 # 381 #
387 # Some machines like the Indy need 32-bit ELF 382 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
388 # Other need ECOFF, so we build a 32-bit ELF b 383 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
389 # convert to ECOFF using elf2ecoff. 384 # convert to ECOFF using elf2ecoff.
390 # 385 #
391 quiet_cmd_32 = OBJCOPY $@ 386 quiet_cmd_32 = OBJCOPY $@
392 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $( 387 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
393 vmlinux.32: vmlinux 388 vmlinux.32: vmlinux
394 $(call cmd,32) 389 $(call cmd,32)
395 390
396 # 391 #
397 # The 64-bit ELF tools are pretty broken so at 392 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
398 # ELF files from 32-bit files by conversion. 393 # ELF files from 32-bit files by conversion.
399 # 394 #
400 quiet_cmd_64 = OBJCOPY $@ 395 quiet_cmd_64 = OBJCOPY $@
401 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $( 396 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
402 vmlinux.64: vmlinux 397 vmlinux.64: vmlinux
403 $(call cmd,64) 398 $(call cmd,64)
404 399
405 all: $(all-y) $(KBUILD_DTBS) 400 all: $(all-y) $(KBUILD_DTBS)
406 401
407 # boot 402 # boot
408 $(boot-y): $(vmlinux-32) FORCE 403 $(boot-y): $(vmlinux-32) FORCE
409 $(Q)$(MAKE) $(build)=arch/mips/boot VM 404 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
410 $(bootvars-y) arch/mips/boot/$ 405 $(bootvars-y) arch/mips/boot/$@
411 406
412 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 407 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
413 # boot/compressed 408 # boot/compressed
414 $(bootz-y): $(vmlinux-32) FORCE 409 $(bootz-y): $(vmlinux-32) FORCE
415 $(Q)$(MAKE) $(build)=arch/mips/boot/co 410 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
416 $(bootvars-y) 32bit-bfd=$(32bi !! 411 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
417 else 412 else
418 vmlinuz: FORCE 413 vmlinuz: FORCE
419 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is 414 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
420 /bin/false 415 /bin/false
421 endif 416 endif
422 417
423 418
424 CLEAN_FILES += vmlinux.32 vmlinux.64 419 CLEAN_FILES += vmlinux.32 vmlinux.64
425 420
426 # device-trees 421 # device-trees
427 core-y += arch/mips/boot/dts/ !! 422 core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
>> 423
>> 424 %.dtb %.dtb.S %.dtb.o: | scripts
>> 425 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
>> 426
>> 427 PHONY += dtbs
>> 428 dtbs: scripts
>> 429 $(Q)$(MAKE) $(build)=arch/mips/boot/dts
>> 430
>> 431 PHONY += dtbs_install
>> 432 dtbs_install:
>> 433 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
428 434
429 archprepare: 435 archprepare:
430 ifdef CONFIG_MIPS32_N32 436 ifdef CONFIG_MIPS32_N32
431 @$(kecho) ' Checking missing-syscalls 437 @$(kecho) ' Checking missing-syscalls for N32'
432 $(Q)$(MAKE) $(build)=. missing-syscall 438 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
433 endif 439 endif
434 ifdef CONFIG_MIPS32_O32 440 ifdef CONFIG_MIPS32_O32
435 @$(kecho) ' Checking missing-syscalls 441 @$(kecho) ' Checking missing-syscalls for O32'
436 $(Q)$(MAKE) $(build)=. missing-syscall 442 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
437 endif 443 endif
438 444
439 install: 445 install:
440 $(Q)install -D -m 755 vmlinux $(INSTAL 446 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
441 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 447 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
442 $(Q)install -D -m 755 vmlinuz $(INSTAL 448 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
443 endif 449 endif
444 $(Q)install -D -m 644 .config $(INSTAL 450 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
445 $(Q)install -D -m 644 System.map $(INS 451 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
446 452
447 archheaders: !! 453 archclean:
448 $(Q)$(MAKE) $(build)=arch/mips/kernel/ !! 454 $(Q)$(MAKE) $(clean)=arch/mips/boot
>> 455 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
>> 456 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
>> 457 $(Q)$(MAKE) $(clean)=arch/mips/lasat
449 458
450 define archhelp 459 define archhelp
451 echo ' install - install 460 echo ' install - install kernel into $(INSTALL_PATH)'
452 echo ' vmlinux.ecoff - ECOFF b 461 echo ' vmlinux.ecoff - ECOFF boot image'
453 echo ' vmlinux.bin - Raw bin 462 echo ' vmlinux.bin - Raw binary boot image'
454 echo ' vmlinux.srec - SREC bo 463 echo ' vmlinux.srec - SREC boot image'
455 echo ' vmlinux.32 - 64-bit 464 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
456 echo ' vmlinuz - Compres 465 echo ' vmlinuz - Compressed boot(zboot) image'
457 echo ' vmlinuz.ecoff - ECOFF z 466 echo ' vmlinuz.ecoff - ECOFF zboot image'
458 echo ' vmlinuz.bin - Raw bin 467 echo ' vmlinuz.bin - Raw binary zboot image'
459 echo ' vmlinuz.srec - SREC zb 468 echo ' vmlinuz.srec - SREC zboot image'
460 echo ' uImage - U-Boot 469 echo ' uImage - U-Boot image'
461 echo ' uImage.bin - U-Boot 470 echo ' uImage.bin - U-Boot image (uncompressed)'
462 echo ' uImage.bz2 - U-Boot 471 echo ' uImage.bz2 - U-Boot image (bz2)'
463 echo ' uImage.gz - U-Boot 472 echo ' uImage.gz - U-Boot image (gzip)'
464 echo ' uImage.lzma - U-Boot 473 echo ' uImage.lzma - U-Boot image (lzma)'
465 echo ' uImage.lzo - U-Boot 474 echo ' uImage.lzo - U-Boot image (lzo)'
466 echo ' uzImage.bin - U-Boot 475 echo ' uzImage.bin - U-Boot image (self-extracting)'
>> 476 echo ' dtbs - Device-tree blobs for enabled boards'
>> 477 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
467 echo 478 echo
468 echo ' These will be default as appro 479 echo ' These will be default as appropriate for a configured platform.'
469 echo 480 echo
470 echo ' If you are targeting a system 481 echo ' If you are targeting a system supported by generic kernels you may'
471 echo ' configure the kernel for a giv 482 echo ' configure the kernel for a given architecture target like so:'
472 echo 483 echo
473 echo ' {micro32,32,64}{r1,r2,r6}{el,} 484 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
474 echo 485 echo
475 echo ' Where BOARDS is some subset of 486 echo ' Where BOARDS is some subset of the following:'
476 for board in $(sort $(BOARDS)); do ech 487 for board in $(sort $(BOARDS)); do echo " $${board}"; done
477 echo 488 echo
478 echo ' Specifically the following gen 489 echo ' Specifically the following generic default configurations are'
479 echo ' supported:' 490 echo ' supported:'
480 echo 491 echo
481 $(foreach cfg,$(generic_defconfigs), 492 $(foreach cfg,$(generic_defconfigs),
482 printf " %-24s - Build generic kern 493 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
483 echo 494 echo
484 echo ' The following legacy default c 495 echo ' The following legacy default configurations have been converted to'
485 echo ' generic and can still be used: 496 echo ' generic and can still be used:'
486 echo 497 echo
487 $(foreach cfg,$(sort $(legacy_defconfi 498 $(foreach cfg,$(sort $(legacy_defconfigs)),
488 printf " %-24s - Build $($(cfg)-y)\ 499 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
489 echo 500 echo
490 echo ' Otherwise, the following defau 501 echo ' Otherwise, the following default configurations are available:'
491 endef 502 endef
492 503
493 generic_config_dir = $(srctree)/arch/$(ARCH)/c 504 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
494 generic_defconfigs := 505 generic_defconfigs :=
495 506
496 # 507 #
497 # If the user generates a generic kernel confi 508 # If the user generates a generic kernel configuration without specifying a
498 # list of boards to include the config fragmen 509 # list of boards to include the config fragments for, default to including all
499 # available board config fragments. 510 # available board config fragments.
500 # 511 #
501 ifeq ($(BOARDS),) 512 ifeq ($(BOARDS),)
502 BOARDS = $(patsubst board-%.config,%,$(notdir 513 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
503 endif 514 endif
504 515
505 # 516 #
506 # Generic kernel configurations which merge ge 517 # Generic kernel configurations which merge generic_defconfig with the
507 # appropriate config fragments from arch/mips/ 518 # appropriate config fragments from arch/mips/configs/generic/, resulting in
508 # the ability to easily configure the kernel f 519 # the ability to easily configure the kernel for a given architecture,
509 # endianness & set of boards without duplicati 520 # endianness & set of boards without duplicating the needed configuration in
510 # hundreds of defconfig files. 521 # hundreds of defconfig files.
511 # 522 #
512 define gen_generic_defconfigs 523 define gen_generic_defconfigs
513 $(foreach bits,$(1),$(foreach rev,$(2),$(forea 524 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
514 target := $(bits)$(rev)$(filter el,$(endian))_ 525 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
515 generic_defconfigs += $$(target) 526 generic_defconfigs += $$(target)
516 $$(target): $(generic_config_dir)/$(bits)$(rev 527 $$(target): $(generic_config_dir)/$(bits)$(rev).config
517 $$(target): $(generic_config_dir)/$(endian).co 528 $$(target): $(generic_config_dir)/$(endian).config
518 ))) 529 )))
519 endef 530 endef
520 531
521 $(eval $(call gen_generic_defconfigs,32 64,r1 532 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
522 $(eval $(call gen_generic_defconfigs,micro32,r 533 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
523 534
524 define describe_generic_defconfig 535 define describe_generic_defconfig
525 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(su 536 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
526 endef 537 endef
527 538
528 .PHONY: $(generic_defconfigs) 539 .PHONY: $(generic_defconfigs)
529 $(generic_defconfigs): 540 $(generic_defconfigs):
530 $(Q)$(CONFIG_SHELL) $(srctree)/scripts 541 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
531 -m -O $(objtree) $(srctree)/ar 542 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
532 grep -Ev '^#' 543 grep -Ev '^#'
533 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.c 544 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
534 $(Q)$(MAKE) -f $(srctree)/Makefile old 545 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
535 KCONFIG_CONFIG=$(objtree)/.con 546 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
536 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$( 547 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
537 $(srctree) $(objtree) $(objtre 548 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
538 "$(origin BOARDS)" $(BOARDS) 549 "$(origin BOARDS)" $(BOARDS)
539 $(Q)$(MAKE) -f $(srctree)/Makefile old 550 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
540 551
541 # 552 #
542 # Prevent generic merge_config rules attemptin 553 # Prevent generic merge_config rules attempting to merge single fragments
543 # 554 #
544 $(generic_config_dir)/%.config: ; 555 $(generic_config_dir)/%.config: ;
545 556
546 # 557 #
547 # Prevent direct use of generic_defconfig, whi 558 # Prevent direct use of generic_defconfig, which is intended to be used as the
548 # basis of the various ISA-specific targets ge 559 # basis of the various ISA-specific targets generated above.
549 # 560 #
550 .PHONY: generic_defconfig 561 .PHONY: generic_defconfig
551 generic_defconfig: 562 generic_defconfig:
552 $(Q)echo "generic_defconfig is not int 563 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
553 $(Q)echo "used via an ISA-specific tar 564 $(Q)echo "used via an ISA-specific target from the following list:"
554 $(Q)echo 565 $(Q)echo
555 $(Q)for cfg in $(generic_defconfigs); 566 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
556 $(Q)echo 567 $(Q)echo
557 $(Q)false 568 $(Q)false
558 569
559 # 570 #
560 # Legacy defconfig compatibility - these targe 571 # Legacy defconfig compatibility - these targets used to be real defconfigs but
561 # now that the boards have been converted to u 572 # now that the boards have been converted to use the generic kernel they are
562 # wrappers around the generic rules above. 573 # wrappers around the generic rules above.
563 # 574 #
564 legacy_defconfigs += ocelot_defc 575 legacy_defconfigs += ocelot_defconfig
565 ocelot_defconfig-y := 32r2el_defc 576 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
566 577
567 legacy_defconfigs += sead3_defco 578 legacy_defconfigs += sead3_defconfig
568 sead3_defconfig-y := 32r2el_defc 579 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
569 580
570 legacy_defconfigs += sead3micro_ 581 legacy_defconfigs += sead3micro_defconfig
571 sead3micro_defconfig-y := micro32r2el 582 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
572 583
573 legacy_defconfigs += xilfpga_def 584 legacy_defconfigs += xilfpga_defconfig
574 xilfpga_defconfig-y := 32r2el_defc 585 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
575 <<
576 legacy_defconfigs += pistachio_d <<
577 pistachio_defconfig-y := 32r2el_defc <<
578 586
579 .PHONY: $(legacy_defconfigs) 587 .PHONY: $(legacy_defconfigs)
580 $(legacy_defconfigs): 588 $(legacy_defconfigs):
581 $(Q)$(MAKE) -f $(srctree)/Makefile $($ 589 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.