1 # SPDX-License-Identifier: GPL-2.0-only !! 1 #
2 OBJCOPYFLAGS :=-O binary !! 2 # This file is subject to the terms and conditions of the GNU General Public
3 GZFLAGS :=-9 !! 3 # License. See the file "COPYING" in the main directory of this archive
>> 4 # for more details.
>> 5 #
>> 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
>> 7 # DECStation modifications by Paul M. Antoine, 1996
>> 8 # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
>> 9 #
>> 10 # This file is included by the global makefile so that you can add your own
>> 11 # architecture-specific flags and dependencies. Remember to do have actions
>> 12 # for "archclean" cleaning up for this architecture.
>> 13 #
>> 14
>> 15 archscripts: scripts_basic
>> 16 $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
>> 17 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
>> 18
>> 19 KBUILD_DEFCONFIG := 32r2el_defconfig
>> 20 KBUILD_DTBS := dtbs
>> 21
>> 22 #
>> 23 # Select the object file format to substitute into the linker script.
>> 24 #
>> 25 ifdef CONFIG_CPU_LITTLE_ENDIAN
>> 26 32bit-tool-archpref = mipsel
>> 27 64bit-tool-archpref = mips64el
>> 28 32bit-bfd = elf32-tradlittlemips
>> 29 64bit-bfd = elf64-tradlittlemips
>> 30 32bit-emul = elf32ltsmip
>> 31 64bit-emul = elf64ltsmip
>> 32 else
>> 33 32bit-tool-archpref = mips
>> 34 64bit-tool-archpref = mips64
>> 35 32bit-bfd = elf32-tradbigmips
>> 36 64bit-bfd = elf64-tradbigmips
>> 37 32bit-emul = elf32btsmip
>> 38 64bit-emul = elf64btsmip
>> 39 endif
4 40
5 ifdef CONFIG_CPU_HAS_FPU !! 41 ifdef CONFIG_32BIT
6 FPUEXT = f !! 42 tool-archpref = $(32bit-tool-archpref)
>> 43 UTS_MACHINE := mips
>> 44 endif
>> 45 ifdef CONFIG_64BIT
>> 46 tool-archpref = $(64bit-tool-archpref)
>> 47 UTS_MACHINE := mips64
7 endif 48 endif
8 49
9 ifdef CONFIG_CPU_HAS_VDSP !! 50 ifneq ($(SUBARCH),$(ARCH))
10 VDSPEXT = v !! 51 ifeq ($(CROSS_COMPILE),)
>> 52 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
>> 53 endif
11 endif 54 endif
12 55
13 ifdef CONFIG_CPU_HAS_TEE !! 56 ifdef CONFIG_FUNCTION_GRAPH_TRACER
14 TEEEXT = t !! 57 ifndef KBUILD_MCOUNT_RA_ADDRESS
>> 58 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
>> 59 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
>> 60 endif
>> 61 endif
15 endif 62 endif
>> 63 cflags-y += $(call cc-option, -mno-check-zero-division)
>> 64
>> 65 ifdef CONFIG_32BIT
>> 66 ld-emul = $(32bit-emul)
>> 67 vmlinux-32 = vmlinux
>> 68 vmlinux-64 = vmlinux.64
16 69
17 ifdef CONFIG_CPU_CK610 !! 70 cflags-y += -mabi=32
18 CPUTYPE = ck610 <<
19 CSKYABI = abiv1 <<
20 endif 71 endif
21 72
22 ifdef CONFIG_CPU_CK810 !! 73 ifdef CONFIG_64BIT
23 CPUTYPE = ck810 !! 74 ld-emul = $(64bit-emul)
24 CSKYABI = abiv2 !! 75 vmlinux-32 = vmlinux.32
>> 76 vmlinux-64 = vmlinux
>> 77
>> 78 cflags-y += -mabi=64
25 endif 79 endif
26 80
27 ifdef CONFIG_CPU_CK807 !! 81 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
28 CPUTYPE = ck807 !! 82 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
29 CSKYABI = abiv2 !! 83 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
>> 84
>> 85 #
>> 86 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
>> 87 # code since it only slows down the whole thing. At some point we might make
>> 88 # use of global pointer optimizations but their use of $28 conflicts with
>> 89 # the current pointer optimization.
>> 90 #
>> 91 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
>> 92 # machines may also. Since BFD is incredibly buggy with respect to
>> 93 # crossformat linking we rely on the elf2ecoff tool for format conversion.
>> 94 #
>> 95 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
>> 96 cflags-y += -msoft-float
>> 97 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
>> 98 KBUILD_AFLAGS_MODULE += -mlong-calls
>> 99 KBUILD_CFLAGS_MODULE += -mlong-calls
>> 100
>> 101 ifeq ($(CONFIG_RELOCATABLE),y)
>> 102 LDFLAGS_vmlinux += --emit-relocs
30 endif 103 endif
31 104
32 ifdef CONFIG_CPU_CK860 !! 105 #
33 CPUTYPE = ck860 !! 106 # pass -msoft-float to GAS if it supports it. However on newer binutils
34 CSKYABI = abiv2 !! 107 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
>> 108 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 109 #
>> 110 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
>> 111 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
>> 112 endif
>> 113
>> 114 cflags-y += -ffreestanding
>> 115
>> 116 #
>> 117 # We explicitly add the endianness specifier if needed, this allows
>> 118 # to compile kernels with a toolchain for the other endianness. We
>> 119 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
>> 120 # when fed the toolchain default!
>> 121 #
>> 122 # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
>> 123 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
>> 124 # are used, so we kludge that here. A bug has been filed at
>> 125 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
>> 126 #
>> 127 # clang doesn't suffer from these issues and our checks against -dumpmachine
>> 128 # don't work so well when cross compiling, since without providing --target
>> 129 # clang's output will be based upon the build machine. So for clang we simply
>> 130 # unconditionally specify -EB or -EL as appropriate.
>> 131 #
>> 132 ifdef CONFIG_CC_IS_CLANG
>> 133 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
>> 134 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
>> 135 else
>> 136 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
>> 137 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
>> 138 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
>> 139 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
>> 140 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
>> 141 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
>> 142 endif
>> 143
>> 144 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
>> 145 -fno-omit-frame-pointer
>> 146
>> 147 # Some distribution-specific toolchains might pass the -fstack-check
>> 148 # option during the build, which adds a simple stack-probe at the beginning
>> 149 # of every function. This stack probe is to ensure that there is enough
>> 150 # stack space, else a SEGV is generated. This is not desirable for MIPS
>> 151 # as kernel stacks are small, placed in unmapped virtual memory, and do not
>> 152 # grow when overflowed. Especially on SGI IP27 platforms, this check will
>> 153 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
>> 154 #
>> 155 # In disassembly, this stack probe appears at the top of a function as:
>> 156 # sd zero,<offset>(sp)
>> 157 # Where <offset> is a negative value.
>> 158 #
>> 159 cflags-y += -fno-stack-check
>> 160
>> 161 #
>> 162 # CPU-dependent compiler/assembler options for optimization.
>> 163 #
>> 164 cflags-$(CONFIG_CPU_R3000) += -march=r3000
>> 165 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
>> 166 cflags-$(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
>> 169 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
>> 170 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
>> 171 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
>> 172 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
>> 173 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap
>> 174 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
>> 175 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
>> 176 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
>> 177 -Wa,--trap
>> 178 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
>> 179 -Wa,--trap
>> 180 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
>> 181 -Wa,--trap
>> 182 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
>> 183 -Wa,--trap
>> 184 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
>> 185 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
>> 186 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
>> 187 -Wa,--trap
>> 188 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 189 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 190 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
35 endif 191 endif
>> 192 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
>> 193 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
36 194
37 ifneq ($(CSKYABI),) !! 195 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
38 MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEE !! 196 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
39 KBUILD_CFLAGS += -mcpu=$(CPUTYPE) -Wa,-mcpu=$( !! 197 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
40 KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_S !! 198
41 KBUILD_CFLAGS += -msoft-float -mdiv !! 199 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
42 KBUILD_CFLAGS += -fno-tree-vectorize !! 200 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
>> 201 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
>> 202 # similar directives in the kernel will spam the build logs with the following warnings:
>> 203 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
>> 204 # or
>> 205 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
>> 206 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
>> 207 # been fixed properly.
>> 208 mips-cflags := $(cflags-y)
>> 209 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
>> 210 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
>> 211 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
>> 212 endif
>> 213 ifeq ($(CONFIG_CPU_MICROMIPS),y)
>> 214 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
>> 215 cflags-$(micromips-ase) += -mmicromips
>> 216 endif
>> 217 ifeq ($(CONFIG_CPU_HAS_MSA),y)
>> 218 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
>> 219 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
>> 220 endif
>> 221 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
>> 222 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
>> 223 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
>> 224 # only warns
>> 225 xpa-cflags-y := $(mips-cflags)
>> 226 xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
>> 227 toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
>> 228 cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
>> 229 toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
>> 230 cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
>> 231 toolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
>> 232 cflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP
>> 233 toolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
>> 234 cflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV
>> 235
>> 236 #
>> 237 # Firmware support
>> 238 #
>> 239 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
>> 240 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
>> 241 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
>> 242 libs-y += arch/mips/fw/lib/
>> 243
>> 244 #
>> 245 # Kernel compression
>> 246 #
>> 247 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 248 COMPRESSION_FNAME = vmlinuz
>> 249 else
>> 250 COMPRESSION_FNAME = vmlinux
43 endif 251 endif
44 252
45 KBUILD_CFLAGS += -pipe !! 253 #
46 ifeq ($(CSKYABI),abiv2) !! 254 # Board-dependent options and extra files
47 KBUILD_CFLAGS += -mno-stack-size !! 255 #
>> 256 include arch/mips/Kbuild.platforms
>> 257
>> 258 ifdef CONFIG_PHYSICAL_START
>> 259 load-y = $(CONFIG_PHYSICAL_START)
48 endif 260 endif
49 261
50 ifdef CONFIG_FRAME_POINTER !! 262 entry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
51 KBUILD_CFLAGS += -mbacktrace !! 263 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
>> 264 drivers-$(CONFIG_PCI) += arch/mips/pci/
>> 265
>> 266 #
>> 267 # Automatically detect the build format. By default we choose
>> 268 # the elf format according to the load address.
>> 269 # We can always force a build with a 64-bits symbol format by
>> 270 # passing 'KBUILD_SYM32=no' option to the make's command line.
>> 271 #
>> 272 ifdef CONFIG_64BIT
>> 273 ifndef KBUILD_SYM32
>> 274 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
>> 275 KBUILD_SYM32 = y
>> 276 endif
>> 277 endif
>> 278
>> 279 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
>> 280 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
>> 281 else
>> 282 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
>> 283 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
>> 284 endif
>> 285 endif
52 endif 286 endif
53 287
54 abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI !! 288 # When linking a 32-bit executable the LLVM linker cannot cope with a
55 KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%in !! 289 # 32-bit load address that has been sign-extended to 64 bits. Simply
>> 290 # remove the upper 32 bits then, as it is safe to do so with other
>> 291 # linkers.
>> 292 ifdef CONFIG_64BIT
>> 293 load-ld = $(load-y)
>> 294 else
>> 295 load-ld = $(subst 0xffffffff,0x,$(load-y))
>> 296 endif
56 297
57 KBUILD_CPPFLAGS += -mlittle-endian !! 298 KBUILD_AFLAGS += $(cflags-y)
58 LDFLAGS += -EL !! 299 KBUILD_CFLAGS += $(cflags-y)
>> 300 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
>> 301 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
>> 302
>> 303 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
>> 304 LINKER_LOAD_ADDRESS=$(load-ld) \
>> 305 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
>> 306 PLATFORM="$(platform-y)" \
>> 307 ITS_INPUTS="$(its-y)"
>> 308 ifdef CONFIG_32BIT
>> 309 bootvars-y += ADDR_BITS=32
>> 310 endif
>> 311 ifdef CONFIG_64BIT
>> 312 bootvars-y += ADDR_BITS=64
>> 313 endif
59 314
60 KBUILD_AFLAGS += $(KBUILD_CFLAGS) !! 315 # This is required to get dwarf unwinding tables into .debug_frame
>> 316 # instead of .eh_frame so we don't discard them.
>> 317 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
>> 318
>> 319 KBUILD_LDFLAGS += -m $(ld-emul)
>> 320
>> 321 ifdef CONFIG_MIPS
>> 322 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>> 323 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
>> 324 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
>> 325 endif
61 326
62 core-y += arch/csky/$(CSKYABI)/ !! 327 OBJCOPYFLAGS += --remove-section=.reginfo
63 328
64 libs-y += arch/csky/lib/ \ !! 329 head-y := arch/mips/kernel/head.o
65 $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLA <<
66 330
67 boot := arch/csky/boot !! 331 libs-y += arch/mips/lib/
>> 332 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
68 333
69 all: zImage !! 334 # See arch/mips/Kbuild for content of core part of the kernel
>> 335 core-y += arch/mips/
>> 336
>> 337 drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
>> 338 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
>> 339
>> 340 # suspend and hibernation support
>> 341 drivers-$(CONFIG_PM) += arch/mips/power/
>> 342
>> 343 # boot image targets (arch/mips/boot/)
>> 344 boot-y := vmlinux.bin
>> 345 boot-y += vmlinux.ecoff
>> 346 boot-y += vmlinux.srec
>> 347 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 348 boot-y += uImage
>> 349 boot-y += uImage.bin
>> 350 boot-y += uImage.bz2
>> 351 boot-y += uImage.gz
>> 352 boot-y += uImage.lzma
>> 353 boot-y += uImage.lzo
>> 354 endif
>> 355 boot-y += vmlinux.itb
>> 356 boot-y += vmlinux.gz.itb
>> 357 boot-y += vmlinux.bz2.itb
>> 358 boot-y += vmlinux.lzma.itb
>> 359 boot-y += vmlinux.lzo.itb
>> 360
>> 361 # compressed boot image targets (arch/mips/boot/compressed/)
>> 362 bootz-y := vmlinuz
>> 363 bootz-y += vmlinuz.bin
>> 364 bootz-y += vmlinuz.ecoff
>> 365 bootz-y += vmlinuz.srec
>> 366 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 367 bootz-y += uzImage.bin
>> 368 endif
70 369
71 zImage Image uImage: vmlinux !! 370 ifdef CONFIG_LASAT
72 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ !! 371 rom.bin rom.sw: vmlinux
>> 372 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
>> 373 $(bootvars-y) $@
>> 374 endif
>> 375
>> 376 #
>> 377 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
>> 378 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
>> 379 # convert to ECOFF using elf2ecoff.
>> 380 #
>> 381 quiet_cmd_32 = OBJCOPY $@
>> 382 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 383 vmlinux.32: vmlinux
>> 384 $(call cmd,32)
>> 385
>> 386 #
>> 387 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
>> 388 # ELF files from 32-bit files by conversion.
>> 389 #
>> 390 quiet_cmd_64 = OBJCOPY $@
>> 391 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 392 vmlinux.64: vmlinux
>> 393 $(call cmd,64)
>> 394
>> 395 all: $(all-y) $(KBUILD_DTBS)
>> 396
>> 397 # boot
>> 398 $(boot-y): $(vmlinux-32) FORCE
>> 399 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
>> 400 $(bootvars-y) arch/mips/boot/$@
>> 401
>> 402 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 403 # boot/compressed
>> 404 $(bootz-y): $(vmlinux-32) FORCE
>> 405 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
>> 406 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
>> 407 else
>> 408 vmlinuz: FORCE
>> 409 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
>> 410 /bin/false
>> 411 endif
>> 412
>> 413
>> 414 CLEAN_FILES += vmlinux.32 vmlinux.64
>> 415
>> 416 # device-trees
>> 417 core-y += arch/mips/boot/dts/
>> 418
>> 419 archprepare:
>> 420 ifdef CONFIG_MIPS32_N32
>> 421 @$(kecho) ' Checking missing-syscalls for N32'
>> 422 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
>> 423 endif
>> 424 ifdef CONFIG_MIPS32_O32
>> 425 @$(kecho) ' Checking missing-syscalls for O32'
>> 426 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
>> 427 endif
>> 428
>> 429 install:
>> 430 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
>> 431 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 432 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
>> 433 endif
>> 434 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
>> 435 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
>> 436
>> 437 archclean:
>> 438 $(Q)$(MAKE) $(clean)=arch/mips/boot
>> 439 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
>> 440 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
>> 441 $(Q)$(MAKE) $(clean)=arch/mips/lasat
>> 442
>> 443 archheaders:
>> 444 $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
73 445
74 define archhelp 446 define archhelp
75 echo '* zImage - Compressed kernel im !! 447 echo ' install - install kernel into $(INSTALL_PATH)'
76 echo ' Image - Uncompressed kernel !! 448 echo ' vmlinux.ecoff - ECOFF boot image'
77 echo ' uImage - U-Boot wrapped zImag !! 449 echo ' vmlinux.bin - Raw binary boot image'
>> 450 echo ' vmlinux.srec - SREC boot image'
>> 451 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
>> 452 echo ' vmlinuz - Compressed boot(zboot) image'
>> 453 echo ' vmlinuz.ecoff - ECOFF zboot image'
>> 454 echo ' vmlinuz.bin - Raw binary zboot image'
>> 455 echo ' vmlinuz.srec - SREC zboot image'
>> 456 echo ' uImage - U-Boot image'
>> 457 echo ' uImage.bin - U-Boot image (uncompressed)'
>> 458 echo ' uImage.bz2 - U-Boot image (bz2)'
>> 459 echo ' uImage.gz - U-Boot image (gzip)'
>> 460 echo ' uImage.lzma - U-Boot image (lzma)'
>> 461 echo ' uImage.lzo - U-Boot image (lzo)'
>> 462 echo ' uzImage.bin - U-Boot image (self-extracting)'
>> 463 echo
>> 464 echo ' These will be default as appropriate for a configured platform.'
>> 465 echo
>> 466 echo ' If you are targeting a system supported by generic kernels you may'
>> 467 echo ' configure the kernel for a given architecture target like so:'
>> 468 echo
>> 469 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
>> 470 echo
>> 471 echo ' Where BOARDS is some subset of the following:'
>> 472 for board in $(sort $(BOARDS)); do echo " $${board}"; done
>> 473 echo
>> 474 echo ' Specifically the following generic default configurations are'
>> 475 echo ' supported:'
>> 476 echo
>> 477 $(foreach cfg,$(generic_defconfigs),
>> 478 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
>> 479 echo
>> 480 echo ' The following legacy default configurations have been converted to'
>> 481 echo ' generic and can still be used:'
>> 482 echo
>> 483 $(foreach cfg,$(sort $(legacy_defconfigs)),
>> 484 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
>> 485 echo
>> 486 echo ' Otherwise, the following default configurations are available:'
>> 487 endef
>> 488
>> 489 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
>> 490 generic_defconfigs :=
>> 491
>> 492 #
>> 493 # If the user generates a generic kernel configuration without specifying a
>> 494 # list of boards to include the config fragments for, default to including all
>> 495 # available board config fragments.
>> 496 #
>> 497 ifeq ($(BOARDS),)
>> 498 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
>> 499 endif
>> 500
>> 501 #
>> 502 # Generic kernel configurations which merge generic_defconfig with the
>> 503 # appropriate config fragments from arch/mips/configs/generic/, resulting in
>> 504 # the ability to easily configure the kernel for a given architecture,
>> 505 # endianness & set of boards without duplicating the needed configuration in
>> 506 # hundreds of defconfig files.
>> 507 #
>> 508 define gen_generic_defconfigs
>> 509 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
>> 510 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
>> 511 generic_defconfigs += $$(target)
>> 512 $$(target): $(generic_config_dir)/$(bits)$(rev).config
>> 513 $$(target): $(generic_config_dir)/$(endian).config
>> 514 )))
78 endef 515 endef
>> 516
>> 517 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
>> 518 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
>> 519
>> 520 define describe_generic_defconfig
>> 521 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
>> 522 endef
>> 523
>> 524 .PHONY: $(generic_defconfigs)
>> 525 $(generic_defconfigs):
>> 526 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
>> 527 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
>> 528 grep -Ev '^#'
>> 529 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
>> 530 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
>> 531 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
>> 532 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
>> 533 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
>> 534 "$(origin BOARDS)" $(BOARDS)
>> 535 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
>> 536
>> 537 #
>> 538 # Prevent generic merge_config rules attempting to merge single fragments
>> 539 #
>> 540 $(generic_config_dir)/%.config: ;
>> 541
>> 542 #
>> 543 # Prevent direct use of generic_defconfig, which is intended to be used as the
>> 544 # basis of the various ISA-specific targets generated above.
>> 545 #
>> 546 .PHONY: generic_defconfig
>> 547 generic_defconfig:
>> 548 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
>> 549 $(Q)echo "used via an ISA-specific target from the following list:"
>> 550 $(Q)echo
>> 551 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
>> 552 $(Q)echo
>> 553 $(Q)false
>> 554
>> 555 #
>> 556 # Legacy defconfig compatibility - these targets used to be real defconfigs but
>> 557 # now that the boards have been converted to use the generic kernel they are
>> 558 # wrappers around the generic rules above.
>> 559 #
>> 560 legacy_defconfigs += ocelot_defconfig
>> 561 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
>> 562
>> 563 legacy_defconfigs += sead3_defconfig
>> 564 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
>> 565
>> 566 legacy_defconfigs += sead3micro_defconfig
>> 567 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
>> 568
>> 569 legacy_defconfigs += xilfpga_defconfig
>> 570 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
>> 571
>> 572 .PHONY: $(legacy_defconfigs)
>> 573 $(legacy_defconfigs):
>> 574 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
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