1# 2# This file is subject to the terms and conditions of the GNU General Public 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 15archscripts: scripts_basic 16 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 17 18KBUILD_DEFCONFIG := ip22_defconfig 19 20# 21# Select the object file format to substitute into the linker script. 22# 23ifdef CONFIG_CPU_LITTLE_ENDIAN 2432bit-tool-archpref = mipsel 2564bit-tool-archpref = mips64el 2632bit-bfd = elf32-tradlittlemips 2764bit-bfd = elf64-tradlittlemips 2832bit-emul = elf32ltsmip 2964bit-emul = elf64ltsmip 30else 3132bit-tool-archpref = mips 3264bit-tool-archpref = mips64 3332bit-bfd = elf32-tradbigmips 3464bit-bfd = elf64-tradbigmips 3532bit-emul = elf32btsmip 3664bit-emul = elf64btsmip 37endif 38 39ifdef CONFIG_32BIT 40tool-archpref = $(32bit-tool-archpref) 41UTS_MACHINE := mips 42endif 43ifdef CONFIG_64BIT 44tool-archpref = $(64bit-tool-archpref) 45UTS_MACHINE := mips64 46endif 47 48ifneq ($(SUBARCH),$(ARCH)) 49 ifeq ($(CROSS_COMPILE),) 50 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 51 endif 52endif 53 54ifdef CONFIG_FUNCTION_GRAPH_TRACER 55 ifndef KBUILD_MCOUNT_RA_ADDRESS 56 ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 57 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 58 endif 59 endif 60endif 61cflags-y += $(call cc-option, -mno-check-zero-division) 62 63ifdef CONFIG_32BIT 64ld-emul = $(32bit-emul) 65vmlinux-32 = vmlinux 66vmlinux-64 = vmlinux.64 67 68cflags-y += -mabi=32 69endif 70 71ifdef CONFIG_64BIT 72ld-emul = $(64bit-emul) 73vmlinux-32 = vmlinux.32 74vmlinux-64 = vmlinux 75 76cflags-y += -mabi=64 77endif 78 79all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 80all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 81all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 82 83# 84# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 85# code since it only slows down the whole thing. At some point we might make 86# use of global pointer optimizations but their use of $28 conflicts with 87# the current pointer optimization. 88# 89# The DECStation requires an ECOFF kernel for remote booting, other MIPS 90# machines may also. Since BFD is incredibly buggy with respect to 91# crossformat linking we rely on the elf2ecoff tool for format conversion. 92# 93cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 94cflags-y += -msoft-float 95LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 96KBUILD_AFLAGS_MODULE += -mlong-calls 97KBUILD_CFLAGS_MODULE += -mlong-calls 98 99ifeq ($(CONFIG_RELOCATABLE),y) 100LDFLAGS_vmlinux += --emit-relocs 101endif 102 103# 104# pass -msoft-float to GAS if it supports it. However on newer binutils 105# (specifically newer than 2.24.51.20140728) we then also need to explicitly 106# set ".set hardfloat" in all files which manipulate floating point registers. 107# 108ifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 109 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 110endif 111 112cflags-y += -ffreestanding 113 114# 115# We explicitly add the endianness specifier if needed, this allows 116# to compile kernels with a toolchain for the other endianness. We 117# carefully avoid to add it redundantly because gcc 3.3/3.4 complains 118# when fed the toolchain default! 119# 120# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of 121# 2006-10-10 don't properly change the predefined symbols if -EB / -EL 122# are used, so we kludge that here. A bug has been filed at 123# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. 124# 125undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ 126undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ 127predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ 128predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ 129cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) 130cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) 131 132cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 133 -fno-omit-frame-pointer 134 135# Some distribution-specific toolchains might pass the -fstack-check 136# option during the build, which adds a simple stack-probe at the beginning 137# of every function. This stack probe is to ensure that there is enough 138# stack space, else a SEGV is generated. This is not desirable for MIPS 139# as kernel stacks are small, placed in unmapped virtual memory, and do not 140# grow when overflowed. Especially on SGI IP27 platforms, this check will 141# lead to a NULL pointer dereference in _raw_spin_lock_irq. 142# 143# In disassembly, this stack probe appears at the top of a function as: 144# sd zero,<offset>(sp) 145# Where <offset> is a negative value. 146# 147cflags-y += -fno-stack-check 148 149# 150# CPU-dependent compiler/assembler options for optimization. 151# 152cflags-$(CONFIG_CPU_R3000) += -march=r3000 153cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 154cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 155cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 156cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 157cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 158cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 159cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 160cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 161cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 162cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 163cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 164cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 165cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ 166 -Wa,--trap 167cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 168 -Wa,--trap 169cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 170 -Wa,--trap 171cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 172 -Wa,--trap 173cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 174 -Wa,--trap 175cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 176cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 177cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap 178cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 179 -Wa,--trap 180cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 181ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 182cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 183endif 184cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 185cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 186 187cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 188cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 189cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 190 191# For smartmips configurations, there are hundreds of warnings due to ISA overrides 192# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 193# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 194# similar directives in the kernel will spam the build logs with the following warnings: 195# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 196# or 197# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 198# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 199# been fixed properly. 200mips-cflags := $(cflags-y) 201ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 202smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 203cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 204endif 205ifeq ($(CONFIG_CPU_MICROMIPS),y) 206micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 207cflags-$(micromips-ase) += -mmicromips 208endif 209ifeq ($(CONFIG_CPU_HAS_MSA),y) 210toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 211cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 212endif 213toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 214cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 215 216# 217# Firmware support 218# 219libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 220libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 221libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 222libs-y += arch/mips/fw/lib/ 223 224# 225# Kernel compression 226# 227ifdef SYS_SUPPORTS_ZBOOT 228COMPRESSION_FNAME = vmlinuz 229else 230COMPRESSION_FNAME = vmlinux 231endif 232 233# 234# Board-dependent options and extra files 235# 236include arch/mips/Kbuild.platforms 237 238ifdef CONFIG_PHYSICAL_START 239load-y = $(CONFIG_PHYSICAL_START) 240endif 241 242entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \ 243 | grep "\bkernel_entry\b" | cut -f1 -d \ ) 244ifdef CONFIG_CPU_MICROMIPS 245 # 246 # Set the ISA bit, since the kernel_entry symbol in the ELF will have it 247 # clear which would lead to images containing addresses which bootloaders may 248 # jump to as MIPS32 code. 249 # 250 entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \ 251 $(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \ 252 $(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y))))))))) 253else 254 entry-y = $(entry-noisa-y) 255endif 256 257cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 258drivers-$(CONFIG_PCI) += arch/mips/pci/ 259 260# 261# Automatically detect the build format. By default we choose 262# the elf format according to the load address. 263# We can always force a build with a 64-bits symbol format by 264# passing 'KBUILD_SYM32=no' option to the make's command line. 265# 266ifdef CONFIG_64BIT 267 ifndef KBUILD_SYM32 268 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 269 KBUILD_SYM32 = y 270 endif 271 endif 272 273 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 274 cflags-y += -msym32 -DKBUILD_64BIT_SYM32 275 else 276 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 277 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 278 endif 279 endif 280endif 281 282KBUILD_AFLAGS += $(cflags-y) 283KBUILD_CFLAGS += $(cflags-y) 284KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) 285KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 286 287bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 288 VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 289 PLATFORM="$(platform-y)" \ 290 ITS_INPUTS="$(its-y)" 291ifdef CONFIG_32BIT 292bootvars-y += ADDR_BITS=32 293endif 294ifdef CONFIG_64BIT 295bootvars-y += ADDR_BITS=64 296endif 297 298# This is required to get dwarf unwinding tables into .debug_frame 299# instead of .eh_frame so we don't discard them. 300KBUILD_CFLAGS += -fno-asynchronous-unwind-tables 301 302LDFLAGS += -m $(ld-emul) 303 304ifdef CONFIG_MIPS 305CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 306 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 307 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 308ifdef CONFIG_64BIT 309CHECKFLAGS += -m64 310endif 311endif 312 313OBJCOPYFLAGS += --remove-section=.reginfo 314 315head-y := arch/mips/kernel/head.o 316 317libs-y += arch/mips/lib/ 318libs-y += arch/mips/math-emu/ 319 320# See arch/mips/Kbuild for content of core part of the kernel 321core-y += arch/mips/ 322 323drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 324 325# suspend and hibernation support 326drivers-$(CONFIG_PM) += arch/mips/power/ 327 328# boot image targets (arch/mips/boot/) 329boot-y := vmlinux.bin 330boot-y += vmlinux.ecoff 331boot-y += vmlinux.srec 332ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 333boot-y += uImage 334boot-y += uImage.bin 335boot-y += uImage.bz2 336boot-y += uImage.gz 337boot-y += uImage.lzma 338boot-y += uImage.lzo 339endif 340boot-y += vmlinux.itb 341boot-y += vmlinux.gz.itb 342boot-y += vmlinux.bz2.itb 343boot-y += vmlinux.lzma.itb 344boot-y += vmlinux.lzo.itb 345 346# compressed boot image targets (arch/mips/boot/compressed/) 347bootz-y := vmlinuz 348bootz-y += vmlinuz.bin 349bootz-y += vmlinuz.ecoff 350bootz-y += vmlinuz.srec 351ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 352bootz-y += uzImage.bin 353endif 354 355ifdef CONFIG_LASAT 356rom.bin rom.sw: vmlinux 357 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ 358 $(bootvars-y) $@ 359endif 360 361# 362# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 363# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 364# convert to ECOFF using elf2ecoff. 365# 366quiet_cmd_32 = OBJCOPY $@ 367 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 368vmlinux.32: vmlinux 369 $(call cmd,32) 370 371# 372# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 373# ELF files from 32-bit files by conversion. 374# 375quiet_cmd_64 = OBJCOPY $@ 376 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 377vmlinux.64: vmlinux 378 $(call cmd,64) 379 380all: $(all-y) 381 382# boot 383$(boot-y): $(vmlinux-32) FORCE 384 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 385 $(bootvars-y) arch/mips/boot/$@ 386 387ifdef CONFIG_SYS_SUPPORTS_ZBOOT 388# boot/compressed 389$(bootz-y): $(vmlinux-32) FORCE 390 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 391 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ 392else 393vmlinuz: FORCE 394 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 395 /bin/false 396endif 397 398 399CLEAN_FILES += vmlinux.32 vmlinux.64 400 401# device-trees 402core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ 403 404%.dtb %.dtb.S %.dtb.o: | scripts 405 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ 406 407PHONY += dtbs 408dtbs: scripts 409 $(Q)$(MAKE) $(build)=arch/mips/boot/dts 410 411PHONY += dtbs_install 412dtbs_install: 413 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts 414 415archprepare: 416ifdef CONFIG_MIPS32_N32 417 @$(kecho) ' Checking missing-syscalls for N32' 418 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 419endif 420ifdef CONFIG_MIPS32_O32 421 @$(kecho) ' Checking missing-syscalls for O32' 422 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 423endif 424 425install: 426 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 427ifdef CONFIG_SYS_SUPPORTS_ZBOOT 428 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 429endif 430 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 431 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 432 433archclean: 434 $(Q)$(MAKE) $(clean)=arch/mips/boot 435 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 436 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools 437 $(Q)$(MAKE) $(clean)=arch/mips/lasat 438 439define archhelp 440 echo ' install - install kernel into $(INSTALL_PATH)' 441 echo ' vmlinux.ecoff - ECOFF boot image' 442 echo ' vmlinux.bin - Raw binary boot image' 443 echo ' vmlinux.srec - SREC boot image' 444 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 445 echo ' vmlinuz - Compressed boot(zboot) image' 446 echo ' vmlinuz.ecoff - ECOFF zboot image' 447 echo ' vmlinuz.bin - Raw binary zboot image' 448 echo ' vmlinuz.srec - SREC zboot image' 449 echo ' uImage - U-Boot image' 450 echo ' uImage.bin - U-Boot image (uncompressed)' 451 echo ' uImage.bz2 - U-Boot image (bz2)' 452 echo ' uImage.gz - U-Boot image (gzip)' 453 echo ' uImage.lzma - U-Boot image (lzma)' 454 echo ' uImage.lzo - U-Boot image (lzo)' 455 echo ' uzImage.bin - U-Boot image (self-extracting)' 456 echo ' dtbs - Device-tree blobs for enabled boards' 457 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 458 echo 459 echo ' These will be default as appropriate for a configured platform.' 460 echo 461 echo ' If you are targeting a system supported by generic kernels you may' 462 echo ' configure the kernel for a given architecture target like so:' 463 echo 464 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 465 echo 466 echo ' Otherwise, the following default configurations are available:' 467endef 468 469generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 470generic_defconfigs := 471 472# 473# If the user generates a generic kernel configuration without specifying a 474# list of boards to include the config fragments for, default to including all 475# available board config fragments. 476# 477ifeq ($(BOARDS),) 478BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 479endif 480 481# 482# Generic kernel configurations which merge generic_defconfig with the 483# appropriate config fragments from arch/mips/configs/generic/, resulting in 484# the ability to easily configure the kernel for a given architecture, 485# endianness & set of boards without duplicating the needed configuration in 486# hundreds of defconfig files. 487# 488define gen_generic_defconfigs 489$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 490target := $(bits)$(rev)$(filter el,$(endian))_defconfig 491generic_defconfigs += $$(target) 492$$(target): $(generic_config_dir)/$(bits)$(rev).config 493$$(target): $(generic_config_dir)/$(endian).config 494))) 495endef 496 497$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 498$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 499 500.PHONY: $(generic_defconfigs) 501$(generic_defconfigs): 502 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 503 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 504 grep -Ev '^#' 505 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 506 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 507 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 508 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 509 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 510 "$(origin BOARDS)" $(BOARDS) 511 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 512 513# 514# Prevent generic merge_config rules attempting to merge single fragments 515# 516$(generic_config_dir)/%.config: ; 517 518# 519# Prevent direct use of generic_defconfig, which is intended to be used as the 520# basis of the various ISA-specific targets generated above. 521# 522.PHONY: generic_defconfig 523generic_defconfig: 524 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 525 $(Q)echo "used via an ISA-specific target from the following list:" 526 $(Q)echo 527 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 528 $(Q)echo 529 $(Q)false 530 531# 532# Legacy defconfig compatibility - these targets used to be real defconfigs but 533# now that the boards have been converted to use the generic kernel they are 534# wrappers around the generic rules above. 535# 536.PHONY: sead3_defconfig 537sead3_defconfig: 538 $(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=sead-3 539 540.PHONY: sead3micro_defconfig 541sead3micro_defconfig: 542 $(Q)$(MAKE) -f $(srctree)/Makefile micro32r2el_defconfig BOARDS=sead-3 543