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.
12 # 12 #
13 13
14 archscripts: scripts_basic 14 archscripts: scripts_basic
15 $(Q)$(MAKE) $(build)=arch/mips/tools e 15 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) 16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)
17 $(Q)$(MAKE) $(build)=arch/mips/tools l 17 $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check
18 endif 18 endif
19 $(Q)$(MAKE) $(build)=arch/mips/boot/to 19 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
20 20
21 KBUILD_DEFCONFIG := 32r2el_defconfig 21 KBUILD_DEFCONFIG := 32r2el_defconfig
22 KBUILD_DTBS := dtbs 22 KBUILD_DTBS := dtbs
23 23
24 # 24 #
25 # Select the object file format to substitute 25 # Select the object file format to substitute into the linker script.
26 # 26 #
27 ifdef CONFIG_CPU_LITTLE_ENDIAN 27 ifdef CONFIG_CPU_LITTLE_ENDIAN
28 32bit-tool-archpref = mipsel 28 32bit-tool-archpref = mipsel
29 64bit-tool-archpref = mips64el 29 64bit-tool-archpref = mips64el
30 32bit-bfd = elf32-tradlittlemips 30 32bit-bfd = elf32-tradlittlemips
31 64bit-bfd = elf64-tradlittlemips 31 64bit-bfd = elf64-tradlittlemips
32 32bit-emul = elf32ltsmip 32 32bit-emul = elf32ltsmip
33 64bit-emul = elf64ltsmip 33 64bit-emul = elf64ltsmip
34 else 34 else
35 32bit-tool-archpref = mips 35 32bit-tool-archpref = mips
36 64bit-tool-archpref = mips64 36 64bit-tool-archpref = mips64
37 32bit-bfd = elf32-tradbigmips 37 32bit-bfd = elf32-tradbigmips
38 64bit-bfd = elf64-tradbigmips 38 64bit-bfd = elf64-tradbigmips
39 32bit-emul = elf32btsmip 39 32bit-emul = elf32btsmip
40 64bit-emul = elf64btsmip 40 64bit-emul = elf64btsmip
41 endif 41 endif
42 42
43 ifdef CONFIG_32BIT 43 ifdef CONFIG_32BIT
44 tool-archpref = $(32bit-tool-archpre 44 tool-archpref = $(32bit-tool-archpref)
45 UTS_MACHINE := mips 45 UTS_MACHINE := mips
46 endif 46 endif
47 ifdef CONFIG_64BIT 47 ifdef CONFIG_64BIT
48 tool-archpref = $(64bit-tool-archpre 48 tool-archpref = $(64bit-tool-archpref)
49 UTS_MACHINE := mips64 49 UTS_MACHINE := mips64
50 endif 50 endif
51 51
52 ifdef cross_compiling 52 ifdef cross_compiling
53 ifeq ($(CROSS_COMPILE),) 53 ifeq ($(CROSS_COMPILE),)
54 CROSS_COMPILE := $(call cc-cross-prefix, $ 54 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
55 endif 55 endif
56 endif 56 endif
57 57
58 ifdef CONFIG_FUNCTION_GRAPH_TRACER 58 ifdef CONFIG_FUNCTION_GRAPH_TRACER
59 ifndef KBUILD_MCOUNT_RA_ADDRESS 59 ifndef KBUILD_MCOUNT_RA_ADDRESS
60 ifeq ($(call cc-option-yn,-mmcount-ra-addr 60 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
61 cflags-y += -mmcount-ra-address -DKBUILD 61 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
62 endif 62 endif
63 endif 63 endif
64 endif 64 endif
65 cflags-y += $(call cc-option, -mno-check-zero- 65 cflags-y += $(call cc-option, -mno-check-zero-division)
66 66
67 ifdef CONFIG_32BIT 67 ifdef CONFIG_32BIT
68 ld-emul = $(32bit-emul) 68 ld-emul = $(32bit-emul)
69 vmlinux-32 = vmlinux 69 vmlinux-32 = vmlinux
70 vmlinux-64 = vmlinux.64 70 vmlinux-64 = vmlinux.64
71 71
72 cflags-y += -mabi=32 72 cflags-y += -mabi=32
73 endif 73 endif
74 74
75 ifdef CONFIG_64BIT 75 ifdef CONFIG_64BIT
76 ld-emul = $(64bit-emul) 76 ld-emul = $(64bit-emul)
77 vmlinux-32 = vmlinux.32 77 vmlinux-32 = vmlinux.32
78 vmlinux-64 = vmlinux 78 vmlinux-64 = vmlinux
79 79
80 cflags-y += -mabi=64 80 cflags-y += -mabi=64
81 endif 81 endif
82 82
83 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-3 83 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
84 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-6 84 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
86 86
87 # 87 #
88 # GCC uses -G 0 -mabicalls -fpic as default. 88 # 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 89 # code since it only slows down the whole thing. At some point we might make
90 # use of global pointer optimizations but thei 90 # use of global pointer optimizations but their use of $28 conflicts with
91 # the current pointer optimization. 91 # the current pointer optimization.
92 # 92 #
93 # The DECStation requires an ECOFF kernel for 93 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
94 # machines may also. Since BFD is incredibly 94 # machines may also. Since BFD is incredibly buggy with respect to
95 # crossformat linking we rely on the elf2ecoff 95 # crossformat linking we rely on the elf2ecoff tool for format conversion.
96 # 96 #
97 cflags-y += -G 0 -mno-a 97 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
98 cflags-y += -msoft-floa !! 98 cflags-y += -msoft-float
99 LDFLAGS_vmlinux += -G 0 -stati 99 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
100 KBUILD_AFLAGS_MODULE += -mlong-call 100 KBUILD_AFLAGS_MODULE += -mlong-calls
101 KBUILD_CFLAGS_MODULE += -mlong-call 101 KBUILD_CFLAGS_MODULE += -mlong-calls
102 102
103 ifeq ($(CONFIG_RELOCATABLE),y) 103 ifeq ($(CONFIG_RELOCATABLE),y)
104 LDFLAGS_vmlinux += --emit-relo 104 LDFLAGS_vmlinux += --emit-relocs
105 endif 105 endif
106 106
>> 107 #
>> 108 # pass -msoft-float to GAS if it supports it. However on newer binutils
>> 109 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
>> 110 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 111 #
>> 112 ifneq ($(call cc-option,$(cflags-y) -Wa$(comma)-msoft-float,),)
>> 113 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
>> 114 endif
>> 115
107 cflags-y += -ffreestanding 116 cflags-y += -ffreestanding
108 117
109 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 118 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
110 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 119 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
111 120
112 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-o 121 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
113 -fno-omit-f 122 -fno-omit-frame-pointer
114 123
115 # Some distribution-specific toolchains might 124 # Some distribution-specific toolchains might pass the -fstack-check
116 # option during the build, which adds a simple 125 # option during the build, which adds a simple stack-probe at the beginning
117 # of every function. This stack probe is to e 126 # of every function. This stack probe is to ensure that there is enough
118 # stack space, else a SEGV is generated. This 127 # stack space, else a SEGV is generated. This is not desirable for MIPS
119 # as kernel stacks are small, placed in unmapp 128 # as kernel stacks are small, placed in unmapped virtual memory, and do not
120 # grow when overflowed. Especially on SGI IP2 129 # grow when overflowed. Especially on SGI IP27 platforms, this check will
121 # lead to a NULL pointer dereference in _raw_s 130 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
122 # 131 #
123 # In disassembly, this stack probe appears at 132 # In disassembly, this stack probe appears at the top of a function as:
124 # sd zero,<offset>(sp) 133 # sd zero,<offset>(sp)
125 # Where <offset> is a negative value. 134 # Where <offset> is a negative value.
126 # 135 #
127 cflags-y += -fno-stack-check 136 cflags-y += -fno-stack-check
128 137
129 # binutils from v2.35 when built with --enable 138 # binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes,
130 # supports an -mfix-loongson3-llsc flag which 139 # supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll
131 # instruction to work around a CPU bug (see __ 140 # instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h
132 # for a description). 141 # for a description).
133 # 142 #
134 # We disable this in order to prevent the asse 143 # We disable this in order to prevent the assembler meddling with the
135 # instruction that labels refer to, ie. if we 144 # instruction that labels refer to, ie. if we label an ll instruction:
136 # 145 #
137 # 1: ll v0, 0(a0) 146 # 1: ll v0, 0(a0)
138 # 147 #
139 # ...then with the assembler fix applied the l 148 # ...then with the assembler fix applied the label may actually point at a sync
140 # instruction inserted by the assembler, and i 149 # instruction inserted by the assembler, and if we were using the label in an
141 # exception table the table would no longer co 150 # exception table the table would no longer contain the address of the ll
142 # instruction. 151 # instruction.
143 # 152 #
144 # Avoid this by explicitly disabling that asse 153 # Avoid this by explicitly disabling that assembler behaviour.
145 # 154 #
146 cflags-y += $(call cc-option,-Wa$(comma)-mno-f 155 cflags-y += $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
147 156
148 # 157 #
149 # CPU-dependent compiler/assembler options for 158 # CPU-dependent compiler/assembler options for optimization.
150 # 159 #
151 cflags-$(CONFIG_CPU_R3000) += $(call cc-o !! 160 cflags-$(CONFIG_CPU_R3000) += -march=r3000
152 cflags-$(CONFIG_CPU_R4300) += $(call cc-o !! 161 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
153 cflags-$(CONFIG_CPU_R4X00) += $(call cc-o !! 162 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
154 cflags-$(CONFIG_CPU_TX49XX) += $(call cc-o !! 163 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
155 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips 164 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
156 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips 165 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
157 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips 166 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg
158 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips 167 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
159 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips 168 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
160 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips 169 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap
161 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips 170 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap
162 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips 171 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
163 cflags-$(CONFIG_CPU_P5600) += $(call cc-o !! 172 cflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg
164 -Wa,--trap -modd-spreg !! 173 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
165 cflags-$(CONFIG_CPU_R5000) += $(call cc-o !! 174 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
166 -Wa,--trap <<
167 cflags-$(CONFIG_CPU_R5500) += $(call cc-o <<
168 -Wa,--trap 175 -Wa,--trap
169 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-o !! 176 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
170 -Wa,--trap 177 -Wa,--trap
171 cflags-$(CONFIG_CPU_RM7000) += $(call cc-o !! 178 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
172 -Wa,--trap 179 -Wa,--trap
173 cflags-$(CONFIG_CPU_SB1) += $(call cc-o !! 180 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
174 -Wa,--trap 181 -Wa,--trap
175 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 182 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
176 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 183 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
177 cflags-$(CONFIG_CPU_R10000) += $(call cc-o !! 184 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
178 -Wa,--trap 185 -Wa,--trap
179 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -march=o !! 186 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 187 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 188 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
>> 189 endif
180 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix- 190 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
181 cflags-$(CONFIG_CPU_BMIPS) += -march=mips !! 191 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
182 192
183 cflags-$(CONFIG_CPU_LOONGSON2E) += \ !! 193 cflags-$(CONFIG_CPU_LOONGSON2E) += $(call cc-option,-march=loongson2e) -Wa,--trap
184 $(call cc-option,-marc !! 194 cflags-$(CONFIG_CPU_LOONGSON2F) += $(call cc-option,-march=loongson2f) -Wa,--trap
185 cflags-$(CONFIG_CPU_LOONGSON2F) += \ !! 195 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-option,-march=loongson3a,-march=mips64r2) -Wa,--trap
186 $(call cc-option,-marc <<
187 # Some -march= flags enable MMI instructions, 196 # Some -march= flags enable MMI instructions, and GCC complains about that
188 # support being enabled alongside -msoft-float 197 # support being enabled alongside -msoft-float. Thus explicitly disable MMI.
189 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc- 198 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc-option,-mno-loongson-mmi)
190 cflags-$(CONFIG_CPU_LOONGSON64) += \ <<
191 $(call cc-option,-marc <<
192 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-o 199 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-option,-mno-loongson-mmi)
193 200
194 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(c 201 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
195 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(c 202 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
196 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(c 203 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
197 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS 204 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS
198 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-m 205 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-mfix-loongson2f-nop
199 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,- 206 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,-mfix-loongson2f-jump
200 endif 207 endif
201 208
202 # 209 #
203 # Some versions of binutils, not currently mai 210 # Some versions of binutils, not currently mainline as of 2019/02/04, support
204 # an -mfix-loongson3-llsc flag which emits a s 211 # an -mfix-loongson3-llsc flag which emits a sync prior to each ll instruction
205 # to work around a CPU bug (see __SYNC_loongso 212 # to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h for a
206 # description). 213 # description).
207 # 214 #
208 # We disable this in order to prevent the asse 215 # We disable this in order to prevent the assembler meddling with the
209 # instruction that labels refer to, ie. if we 216 # instruction that labels refer to, ie. if we label an ll instruction:
210 # 217 #
211 # 1: ll v0, 0(a0) 218 # 1: ll v0, 0(a0)
212 # 219 #
213 # ...then with the assembler fix applied the l 220 # ...then with the assembler fix applied the label may actually point at a sync
214 # instruction inserted by the assembler, and i 221 # instruction inserted by the assembler, and if we were using the label in an
215 # exception table the table would no longer co 222 # exception table the table would no longer contain the address of the ll
216 # instruction. 223 # instruction.
217 # 224 #
218 # Avoid this by explicitly disabling that asse 225 # Avoid this by explicitly disabling that assembler behaviour. If upstream
219 # binutils does not merge support for the flag 226 # binutils does not merge support for the flag then we can revisit & remove
220 # this later - for now it ensures vendor toolc 227 # this later - for now it ensures vendor toolchains don't cause problems.
221 # 228 #
222 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-o 229 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
223 230
224 # For smartmips configurations, there are hund 231 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
225 # in assembly and header files. smartmips is o 232 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
226 # and there is no support for 64-bit. Various 233 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
227 # similar directives in the kernel will spam t 234 # similar directives in the kernel will spam the build logs with the following warnings:
228 # Warning: the `smartmips' extension requires 235 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
229 # or 236 # or
230 # Warning: the 64-bit MIPS architecture does n 237 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
231 # Pass -Wa,--no-warn to disable all assembler 238 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
232 # been fixed properly. 239 # been fixed properly.
233 mips-cflags := $(c 240 mips-cflags := $(cflags-y)
234 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 241 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
235 smartmips-ase := $(c 242 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
236 cflags-$(smartmips-ase) += -ms 243 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
237 endif 244 endif
238 ifeq ($(CONFIG_CPU_MICROMIPS),y) 245 ifeq ($(CONFIG_CPU_MICROMIPS),y)
239 micromips-ase := $(c 246 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
240 cflags-$(micromips-ase) += -mm 247 cflags-$(micromips-ase) += -mmicromips
241 endif 248 endif
242 ifeq ($(CONFIG_CPU_HAS_MSA),y) 249 ifeq ($(CONFIG_CPU_HAS_MSA),y)
243 toolchain-msa := $(c 250 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
244 cflags-$(toolchain-msa) += -DT 251 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
245 endif 252 endif
246 toolchain-virt := $(c 253 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
247 cflags-$(toolchain-virt) += -DT 254 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
248 # For -mmicromips, use -Wa,-fatal-warnings to 255 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
249 # only warns 256 # only warns
250 xpa-cflags-y := $(m 257 xpa-cflags-y := $(mips-cflags)
251 xpa-cflags-$(micromips-ase) += -mm 258 xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
252 toolchain-xpa := $(c 259 toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
253 cflags-$(toolchain-xpa) += -DT 260 cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
254 toolchain-crc := $(c 261 toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
255 cflags-$(toolchain-crc) += -DT 262 cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
256 toolchain-dsp := $(c 263 toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
257 cflags-$(toolchain-dsp) += -DT 264 cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP
258 toolchain-ginv := $(c 265 toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
259 cflags-$(toolchain-ginv) += -DT 266 cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV
260 267
261 # 268 #
262 # Firmware support 269 # Firmware support
263 # 270 #
264 libs-$(CONFIG_FW_ARC) += arch/mips/f 271 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
265 libs-$(CONFIG_FW_CFE) += arch/mips/f 272 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
266 libs-$(CONFIG_FW_SNIPROM) += arch/mips/f 273 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
267 libs-y += arch/mips/f 274 libs-y += arch/mips/fw/lib/
268 275
269 # 276 #
270 # Kernel compression 277 # Kernel compression
271 # 278 #
272 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 279 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
273 COMPRESSION_FNAME = vmlinuz 280 COMPRESSION_FNAME = vmlinuz
274 else 281 else
275 COMPRESSION_FNAME = vmlinux 282 COMPRESSION_FNAME = vmlinux
276 endif 283 endif
277 284
278 # 285 #
279 # Board-dependent options and extra files 286 # Board-dependent options and extra files
280 # 287 #
281 include $(srctree)/arch/mips/Kbuild.platforms 288 include $(srctree)/arch/mips/Kbuild.platforms
282 289
283 ifdef CONFIG_PHYSICAL_START 290 ifdef CONFIG_PHYSICAL_START
284 load-y = $(CO 291 load-y = $(CONFIG_PHYSICAL_START)
285 endif 292 endif
286 293
287 entry-y = $(shell $(ob 294 entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
288 cflags-y += -I$(srctree 295 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
289 drivers-$(CONFIG_PCI) += arch/mips/p 296 drivers-$(CONFIG_PCI) += arch/mips/pci/
290 297
291 # 298 #
292 # Automatically detect the build format. By de 299 # Automatically detect the build format. By default we choose
293 # the elf format according to the load address 300 # the elf format according to the load address.
294 # We can always force a build with a 64-bits s 301 # We can always force a build with a 64-bits symbol format by
295 # passing 'KBUILD_SYM32=no' option to the make 302 # passing 'KBUILD_SYM32=no' option to the make's command line.
296 # 303 #
297 ifdef CONFIG_64BIT 304 ifdef CONFIG_64BIT
298 ifndef KBUILD_SYM32 305 ifndef KBUILD_SYM32
299 ifeq ($(shell expr $(load-y) \< 0xffffffff 306 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
300 KBUILD_SYM32 = $(call cc-option-yn, -msy !! 307 KBUILD_SYM32 = y
301 endif 308 endif
302 endif 309 endif
303 310
304 ifeq ($(KBUILD_SYM32), y) 311 ifeq ($(KBUILD_SYM32), y)
305 cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD 312 cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD_64BIT_SYM32
306 else 313 else
307 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 314 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
308 $(error CONFIG_CPU_DADDI_WORKAROUNDS uns 315 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
309 endif 316 endif
310 endif 317 endif
311 endif 318 endif
312 319
313 # When linking a 32-bit executable the LLVM li 320 # When linking a 32-bit executable the LLVM linker cannot cope with a
314 # 32-bit load address that has been sign-exten 321 # 32-bit load address that has been sign-extended to 64 bits. Simply
315 # remove the upper 32 bits then, as it is safe 322 # remove the upper 32 bits then, as it is safe to do so with other
316 # linkers. 323 # linkers.
317 ifdef CONFIG_64BIT 324 ifdef CONFIG_64BIT
318 load-ld = $(load-y) 325 load-ld = $(load-y)
319 else 326 else
320 load-ld = $(subst 0xff 327 load-ld = $(subst 0xffffffff,0x,$(load-y))
321 endif 328 endif
322 329
323 KBUILD_AFLAGS += $(cflags-y) 330 KBUILD_AFLAGS += $(cflags-y)
324 KBUILD_CFLAGS += $(cflags-y) 331 KBUILD_CFLAGS += $(cflags-y)
325 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo 332 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
326 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoff 333 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
327 334
328 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- 335 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
329 LINKER_LOAD_ADDRESS=$(load-l 336 LINKER_LOAD_ADDRESS=$(load-ld) \
330 VMLINUX_ENTRY_ADDRESS=$(entr 337 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
331 PLATFORM="$(platform-y)" \ 338 PLATFORM="$(platform-y)" \
332 ITS_INPUTS="$(its-y)" 339 ITS_INPUTS="$(its-y)"
333 ifdef CONFIG_32BIT 340 ifdef CONFIG_32BIT
334 bootvars-y += ADDR_BITS=32 341 bootvars-y += ADDR_BITS=32
335 endif 342 endif
336 ifdef CONFIG_64BIT 343 ifdef CONFIG_64BIT
337 bootvars-y += ADDR_BITS=64 344 bootvars-y += ADDR_BITS=64
338 endif 345 endif
339 346
340 # This is required to get dwarf unwinding tabl 347 # This is required to get dwarf unwinding tables into .debug_frame
341 # instead of .eh_frame so we don't discard the 348 # instead of .eh_frame so we don't discard them.
342 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl 349 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
343 350
344 KBUILD_LDFLAGS += -m $(ld-emul) 351 KBUILD_LDFLAGS += -m $(ld-emul)
345 352
346 ifdef need-compiler 353 ifdef need-compiler
347 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 354 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
348 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL 355 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
349 sed -e "s/^\#define /-D'/" -e "s/ /'=' 356 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
350 endif 357 endif
351 358
352 OBJCOPYFLAGS += --remove-section=.r 359 OBJCOPYFLAGS += --remove-section=.reginfo
353 360
354 libs-y += arch/mips/lib/ 361 libs-y += arch/mips/lib/
355 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/ma 362 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
356 363
357 drivers-y += arch/mips/c 364 drivers-y += arch/mips/crypto/
358 365
359 # suspend and hibernation support 366 # suspend and hibernation support
360 drivers-$(CONFIG_PM) += arch/mips/power/ 367 drivers-$(CONFIG_PM) += arch/mips/power/
361 368
362 # boot image targets (arch/mips/boot/) 369 # boot image targets (arch/mips/boot/)
363 boot-y := vmlinux.bin 370 boot-y := vmlinux.bin
364 boot-y += vmlinux.ecoff 371 boot-y += vmlinux.ecoff
365 boot-y += vmlinux.srec 372 boot-y += vmlinux.srec
366 boot-y += uImage 373 boot-y += uImage
367 boot-y += uImage.bin 374 boot-y += uImage.bin
368 boot-y += uImage.bz2 375 boot-y += uImage.bz2
369 boot-y += uImage.gz 376 boot-y += uImage.gz
370 boot-y += uImage.lzma 377 boot-y += uImage.lzma
371 boot-y += uImage.lzo 378 boot-y += uImage.lzo
372 boot-y += vmlinux.itb 379 boot-y += vmlinux.itb
373 boot-y += vmlinux.gz.itb 380 boot-y += vmlinux.gz.itb
374 boot-y += vmlinux.bz2.itb 381 boot-y += vmlinux.bz2.itb
375 boot-y += vmlinux.lzma.itb 382 boot-y += vmlinux.lzma.itb
376 boot-y += vmlinux.lzo.itb 383 boot-y += vmlinux.lzo.itb
377 384
378 # compressed boot image targets (arch/mips/boo 385 # compressed boot image targets (arch/mips/boot/compressed/)
379 bootz-y := vmlinuz 386 bootz-y := vmlinuz
380 bootz-y += vmlinuz.bin 387 bootz-y += vmlinuz.bin
381 bootz-y += vmlinuz.ecoff 388 bootz-y += vmlinuz.ecoff
382 bootz-y += vmlinuz.srec 389 bootz-y += vmlinuz.srec
383 bootz-y += uzImage.bin 390 bootz-y += uzImage.bin
384 bootz-y += vmlinuz.itb 391 bootz-y += vmlinuz.itb
385 392
386 # 393 #
387 # Some machines like the Indy need 32-bit ELF 394 # 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 395 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
389 # convert to ECOFF using elf2ecoff. 396 # convert to ECOFF using elf2ecoff.
390 # 397 #
391 quiet_cmd_32 = OBJCOPY $@ 398 quiet_cmd_32 = OBJCOPY $@
392 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $( 399 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
393 vmlinux.32: vmlinux 400 vmlinux.32: vmlinux
394 $(call cmd,32) 401 $(call cmd,32)
395 402
396 # 403 #
397 # The 64-bit ELF tools are pretty broken so at 404 # 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. 405 # ELF files from 32-bit files by conversion.
399 # 406 #
400 quiet_cmd_64 = OBJCOPY $@ 407 quiet_cmd_64 = OBJCOPY $@
401 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $( 408 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
402 vmlinux.64: vmlinux 409 vmlinux.64: vmlinux
403 $(call cmd,64) 410 $(call cmd,64)
404 411
405 all: $(all-y) $(KBUILD_DTBS) 412 all: $(all-y) $(KBUILD_DTBS)
406 413
407 # boot 414 # boot
408 $(boot-y): $(vmlinux-32) FORCE 415 $(boot-y): $(vmlinux-32) FORCE
409 $(Q)$(MAKE) $(build)=arch/mips/boot VM 416 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
410 $(bootvars-y) arch/mips/boot/$ 417 $(bootvars-y) arch/mips/boot/$@
411 418
412 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 419 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
413 # boot/compressed 420 # boot/compressed
414 $(bootz-y): $(vmlinux-32) FORCE 421 $(bootz-y): $(vmlinux-32) FORCE
415 $(Q)$(MAKE) $(build)=arch/mips/boot/co 422 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
416 $(bootvars-y) 32bit-bfd=$(32bi 423 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@
417 else 424 else
418 vmlinuz: FORCE 425 vmlinuz: FORCE
419 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is 426 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
420 /bin/false 427 /bin/false
421 endif 428 endif
422 429
423 430
424 CLEAN_FILES += vmlinux.32 vmlinux.64 431 CLEAN_FILES += vmlinux.32 vmlinux.64
425 432
426 # device-trees 433 # device-trees
427 core-y += arch/mips/boot/dts/ 434 core-y += arch/mips/boot/dts/
428 435
429 archprepare: 436 archprepare:
430 ifdef CONFIG_MIPS32_N32 437 ifdef CONFIG_MIPS32_N32
431 @$(kecho) ' Checking missing-syscalls 438 @$(kecho) ' Checking missing-syscalls for N32'
432 $(Q)$(MAKE) $(build)=. missing-syscall 439 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
433 endif 440 endif
434 ifdef CONFIG_MIPS32_O32 441 ifdef CONFIG_MIPS32_O32
435 @$(kecho) ' Checking missing-syscalls 442 @$(kecho) ' Checking missing-syscalls for O32'
436 $(Q)$(MAKE) $(build)=. missing-syscall 443 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
437 endif 444 endif
438 445
439 install: 446 install:
440 $(Q)install -D -m 755 vmlinux $(INSTAL 447 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
441 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 448 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
442 $(Q)install -D -m 755 vmlinuz $(INSTAL 449 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
443 endif 450 endif
444 $(Q)install -D -m 644 .config $(INSTAL 451 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
445 $(Q)install -D -m 644 System.map $(INS 452 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
446 453
447 archheaders: 454 archheaders:
448 $(Q)$(MAKE) $(build)=arch/mips/kernel/ 455 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
449 456
450 define archhelp 457 define archhelp
451 echo ' install - install 458 echo ' install - install kernel into $(INSTALL_PATH)'
452 echo ' vmlinux.ecoff - ECOFF b 459 echo ' vmlinux.ecoff - ECOFF boot image'
453 echo ' vmlinux.bin - Raw bin 460 echo ' vmlinux.bin - Raw binary boot image'
454 echo ' vmlinux.srec - SREC bo 461 echo ' vmlinux.srec - SREC boot image'
455 echo ' vmlinux.32 - 64-bit 462 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
456 echo ' vmlinuz - Compres 463 echo ' vmlinuz - Compressed boot(zboot) image'
457 echo ' vmlinuz.ecoff - ECOFF z 464 echo ' vmlinuz.ecoff - ECOFF zboot image'
458 echo ' vmlinuz.bin - Raw bin 465 echo ' vmlinuz.bin - Raw binary zboot image'
459 echo ' vmlinuz.srec - SREC zb 466 echo ' vmlinuz.srec - SREC zboot image'
460 echo ' uImage - U-Boot 467 echo ' uImage - U-Boot image'
461 echo ' uImage.bin - U-Boot 468 echo ' uImage.bin - U-Boot image (uncompressed)'
462 echo ' uImage.bz2 - U-Boot 469 echo ' uImage.bz2 - U-Boot image (bz2)'
463 echo ' uImage.gz - U-Boot 470 echo ' uImage.gz - U-Boot image (gzip)'
464 echo ' uImage.lzma - U-Boot 471 echo ' uImage.lzma - U-Boot image (lzma)'
465 echo ' uImage.lzo - U-Boot 472 echo ' uImage.lzo - U-Boot image (lzo)'
466 echo ' uzImage.bin - U-Boot 473 echo ' uzImage.bin - U-Boot image (self-extracting)'
467 echo 474 echo
468 echo ' These will be default as appro 475 echo ' These will be default as appropriate for a configured platform.'
469 echo 476 echo
470 echo ' If you are targeting a system 477 echo ' If you are targeting a system supported by generic kernels you may'
471 echo ' configure the kernel for a giv 478 echo ' configure the kernel for a given architecture target like so:'
472 echo 479 echo
473 echo ' {micro32,32,64}{r1,r2,r6}{el,} 480 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
474 echo 481 echo
475 echo ' Where BOARDS is some subset of 482 echo ' Where BOARDS is some subset of the following:'
476 for board in $(sort $(BOARDS)); do ech 483 for board in $(sort $(BOARDS)); do echo " $${board}"; done
477 echo 484 echo
478 echo ' Specifically the following gen 485 echo ' Specifically the following generic default configurations are'
479 echo ' supported:' 486 echo ' supported:'
480 echo 487 echo
481 $(foreach cfg,$(generic_defconfigs), 488 $(foreach cfg,$(generic_defconfigs),
482 printf " %-24s - Build generic kern 489 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
483 echo 490 echo
484 echo ' The following legacy default c 491 echo ' The following legacy default configurations have been converted to'
485 echo ' generic and can still be used: 492 echo ' generic and can still be used:'
486 echo 493 echo
487 $(foreach cfg,$(sort $(legacy_defconfi 494 $(foreach cfg,$(sort $(legacy_defconfigs)),
488 printf " %-24s - Build $($(cfg)-y)\ 495 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
489 echo 496 echo
490 echo ' Otherwise, the following defau 497 echo ' Otherwise, the following default configurations are available:'
491 endef 498 endef
492 499
493 generic_config_dir = $(srctree)/arch/$(ARCH)/c 500 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
494 generic_defconfigs := 501 generic_defconfigs :=
495 502
496 # 503 #
497 # If the user generates a generic kernel confi 504 # If the user generates a generic kernel configuration without specifying a
498 # list of boards to include the config fragmen 505 # list of boards to include the config fragments for, default to including all
499 # available board config fragments. 506 # available board config fragments.
500 # 507 #
501 ifeq ($(BOARDS),) 508 ifeq ($(BOARDS),)
502 BOARDS = $(patsubst board-%.config,%,$(notdir 509 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
503 endif 510 endif
504 511
505 # 512 #
506 # Generic kernel configurations which merge ge 513 # Generic kernel configurations which merge generic_defconfig with the
507 # appropriate config fragments from arch/mips/ 514 # appropriate config fragments from arch/mips/configs/generic/, resulting in
508 # the ability to easily configure the kernel f 515 # the ability to easily configure the kernel for a given architecture,
509 # endianness & set of boards without duplicati 516 # endianness & set of boards without duplicating the needed configuration in
510 # hundreds of defconfig files. 517 # hundreds of defconfig files.
511 # 518 #
512 define gen_generic_defconfigs 519 define gen_generic_defconfigs
513 $(foreach bits,$(1),$(foreach rev,$(2),$(forea 520 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
514 target := $(bits)$(rev)$(filter el,$(endian))_ 521 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
515 generic_defconfigs += $$(target) 522 generic_defconfigs += $$(target)
516 $$(target): $(generic_config_dir)/$(bits)$(rev 523 $$(target): $(generic_config_dir)/$(bits)$(rev).config
517 $$(target): $(generic_config_dir)/$(endian).co 524 $$(target): $(generic_config_dir)/$(endian).config
518 ))) 525 )))
519 endef 526 endef
520 527
521 $(eval $(call gen_generic_defconfigs,32 64,r1 528 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
522 $(eval $(call gen_generic_defconfigs,micro32,r 529 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
523 530
524 define describe_generic_defconfig 531 define describe_generic_defconfig
525 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(su 532 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
526 endef 533 endef
527 534
528 .PHONY: $(generic_defconfigs) 535 .PHONY: $(generic_defconfigs)
529 $(generic_defconfigs): 536 $(generic_defconfigs):
530 $(Q)$(CONFIG_SHELL) $(srctree)/scripts 537 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
531 -m -O $(objtree) $(srctree)/ar 538 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
532 grep -Ev '^#' 539 grep -Ev '^#'
533 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.c 540 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
534 $(Q)$(MAKE) -f $(srctree)/Makefile old 541 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
535 KCONFIG_CONFIG=$(objtree)/.con 542 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
536 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$( 543 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
537 $(srctree) $(objtree) $(objtre 544 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
538 "$(origin BOARDS)" $(BOARDS) 545 "$(origin BOARDS)" $(BOARDS)
539 $(Q)$(MAKE) -f $(srctree)/Makefile old 546 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
540 547
541 # 548 #
542 # Prevent generic merge_config rules attemptin 549 # Prevent generic merge_config rules attempting to merge single fragments
543 # 550 #
544 $(generic_config_dir)/%.config: ; 551 $(generic_config_dir)/%.config: ;
545 552
546 # 553 #
547 # Prevent direct use of generic_defconfig, whi 554 # Prevent direct use of generic_defconfig, which is intended to be used as the
548 # basis of the various ISA-specific targets ge 555 # basis of the various ISA-specific targets generated above.
549 # 556 #
550 .PHONY: generic_defconfig 557 .PHONY: generic_defconfig
551 generic_defconfig: 558 generic_defconfig:
552 $(Q)echo "generic_defconfig is not int 559 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
553 $(Q)echo "used via an ISA-specific tar 560 $(Q)echo "used via an ISA-specific target from the following list:"
554 $(Q)echo 561 $(Q)echo
555 $(Q)for cfg in $(generic_defconfigs); 562 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
556 $(Q)echo 563 $(Q)echo
557 $(Q)false 564 $(Q)false
558 565
559 # 566 #
560 # Legacy defconfig compatibility - these targe 567 # Legacy defconfig compatibility - these targets used to be real defconfigs but
561 # now that the boards have been converted to u 568 # now that the boards have been converted to use the generic kernel they are
562 # wrappers around the generic rules above. 569 # wrappers around the generic rules above.
563 # 570 #
564 legacy_defconfigs += ocelot_defc 571 legacy_defconfigs += ocelot_defconfig
565 ocelot_defconfig-y := 32r2el_defc 572 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
566 573
567 legacy_defconfigs += sead3_defco 574 legacy_defconfigs += sead3_defconfig
568 sead3_defconfig-y := 32r2el_defc 575 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
569 576
570 legacy_defconfigs += sead3micro_ 577 legacy_defconfigs += sead3micro_defconfig
571 sead3micro_defconfig-y := micro32r2el 578 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
572 579
573 legacy_defconfigs += xilfpga_def 580 legacy_defconfigs += xilfpga_defconfig
574 xilfpga_defconfig-y := 32r2el_defc 581 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
575 582
576 legacy_defconfigs += pistachio_d 583 legacy_defconfigs += pistachio_defconfig
577 pistachio_defconfig-y := 32r2el_defc 584 pistachio_defconfig-y := 32r2el_defconfig BOARDS=marduk
578 585
579 .PHONY: $(legacy_defconfigs) 586 .PHONY: $(legacy_defconfigs)
580 $(legacy_defconfigs): 587 $(legacy_defconfigs):
581 $(Q)$(MAKE) -f $(srctree)/Makefile $($ 588 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
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