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
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
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.
15 archscripts: scripts_basic
16 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
18 KBUILD_DEFCONFIG := 32r2el_defconfig
22 # Select the object file format to substitute into the linker script.
24 ifdef CONFIG_CPU_LITTLE_ENDIAN
25 32bit-tool-archpref = mipsel
26 64bit-tool-archpref = mips64el
27 32bit-bfd = elf32-tradlittlemips
28 64bit-bfd = elf64-tradlittlemips
29 32bit-emul = elf32ltsmip
30 64bit-emul = elf64ltsmip
32 32bit-tool-archpref = mips
33 64bit-tool-archpref = mips64
34 32bit-bfd = elf32-tradbigmips
35 64bit-bfd = elf64-tradbigmips
36 32bit-emul = elf32btsmip
37 64bit-emul = elf64btsmip
41 tool-archpref = $(32bit-tool-archpref)
45 tool-archpref = $(64bit-tool-archpref)
49 ifneq ($(SUBARCH),$(ARCH))
50 ifeq ($(CROSS_COMPILE),)
51 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
55 ifdef CONFIG_FUNCTION_GRAPH_TRACER
56 ifndef KBUILD_MCOUNT_RA_ADDRESS
57 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
58 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
62 cflags-y += $(call cc-option, -mno-check-zero-division)
65 ld-emul = $(32bit-emul)
67 vmlinux-64 = vmlinux.64
73 ld-emul = $(64bit-emul)
74 vmlinux-32 = vmlinux.32
80 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
81 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
82 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
85 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
86 # code since it only slows down the whole thing. At some point we might make
87 # use of global pointer optimizations but their use of $28 conflicts with
88 # the current pointer optimization.
90 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
91 # machines may also. Since BFD is incredibly buggy with respect to
92 # crossformat linking we rely on the elf2ecoff tool for format conversion.
94 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
95 cflags-y += -msoft-float
96 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
97 KBUILD_AFLAGS_MODULE += -mlong-calls
98 KBUILD_CFLAGS_MODULE += -mlong-calls
100 ifeq ($(CONFIG_RELOCATABLE),y)
101 LDFLAGS_vmlinux += --emit-relocs
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.
109 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
110 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
113 cflags-y += -ffreestanding
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!
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.
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.
131 ifeq ($(cc-name),clang)
132 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
133 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL
135 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
136 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
137 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
138 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
139 cflags-$(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) $(predef-le))
143 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
144 -fno-omit-frame-pointer
146 # Some distribution-specific toolchains might pass the -fstack-check
147 # option during the build, which adds a simple stack-probe at the beginning
148 # of every function. This stack probe is to ensure that there is enough
149 # stack space, else a SEGV is generated. This is not desirable for MIPS
150 # as kernel stacks are small, placed in unmapped virtual memory, and do not
151 # grow when overflowed. Especially on SGI IP27 platforms, this check will
152 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
154 # In disassembly, this stack probe appears at the top of a function as:
155 # sd zero,<offset>(sp)
156 # Where <offset> is a negative value.
158 cflags-y += -fno-stack-check
161 # CPU-dependent compiler/assembler options for optimization.
163 cflags-$(CONFIG_CPU_R3000) += -march=r3000
164 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
165 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
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_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
178 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
180 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
182 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
184 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
186 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
187 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
188 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
189 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
191 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
192 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
193 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
195 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
196 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
198 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
199 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
200 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
202 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
203 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
204 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
205 # similar directives in the kernel will spam the build logs with the following warnings:
206 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
208 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
209 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
210 # been fixed properly.
211 mips-cflags := $(cflags-y)
212 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
213 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
214 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
216 ifeq ($(CONFIG_CPU_MICROMIPS),y)
217 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
218 cflags-$(micromips-ase) += -mmicromips
220 ifeq ($(CONFIG_CPU_HAS_MSA),y)
221 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
222 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
224 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
225 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
226 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
228 xpa-cflags-y := $(mips-cflags)
229 xpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings
230 toolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
231 cflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA
232 toolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
233 cflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC
238 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
239 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
240 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
241 libs-y += arch/mips/fw/lib/
246 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
247 COMPRESSION_FNAME = vmlinuz
249 COMPRESSION_FNAME = vmlinux
253 # Board-dependent options and extra files
255 include arch/mips/Kbuild.platforms
257 ifdef CONFIG_PHYSICAL_START
258 load-y = $(CONFIG_PHYSICAL_START)
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 / { \
265 s/0x\([0-7].......\)$$/0x00000000\1/; \
266 s/0x\(........\)$$/0xffffffff\1/; p }')
268 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
269 drivers-$(CONFIG_PCI) += arch/mips/pci/
272 # Automatically detect the build format. By default we choose
273 # the elf format according to the load address.
274 # We can always force a build with a 64-bits symbol format by
275 # passing 'KBUILD_SYM32=no' option to the make's command line.
279 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
284 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
285 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
287 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
288 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
293 # When linking a 32-bit executable the LLVM linker cannot cope with a
294 # 32-bit load address that has been sign-extended to 64 bits. Simply
295 # remove the upper 32 bits then, as it is safe to do so with other
300 load-ld = $(subst 0xffffffff,0x,$(load-y))
303 KBUILD_AFLAGS += $(cflags-y)
304 KBUILD_CFLAGS += $(cflags-y)
305 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
306 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
308 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
309 LINKER_LOAD_ADDRESS=$(load-ld) \
310 VMLINUX_ENTRY_ADDRESS=$(entry-y) \
311 PLATFORM="$(platform-y)" \
312 ITS_INPUTS="$(its-y)"
314 bootvars-y += ADDR_BITS=32
317 bootvars-y += ADDR_BITS=64
320 # This is required to get dwarf unwinding tables into .debug_frame
321 # instead of .eh_frame so we don't discard them.
322 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
324 KBUILD_LDFLAGS += -m $(ld-emul)
327 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
328 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
329 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
332 OBJCOPYFLAGS += --remove-section=.reginfo
334 head-y := arch/mips/kernel/head.o
336 libs-y += arch/mips/lib/
337 libs-y += arch/mips/math-emu/
339 # See arch/mips/Kbuild for content of core part of the kernel
342 drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
343 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
345 # suspend and hibernation support
346 drivers-$(CONFIG_PM) += arch/mips/power/
348 # boot image targets (arch/mips/boot/)
349 boot-y := vmlinux.bin
350 boot-y += vmlinux.ecoff
351 boot-y += vmlinux.srec
352 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
357 boot-y += uImage.lzma
360 boot-y += vmlinux.itb
361 boot-y += vmlinux.gz.itb
362 boot-y += vmlinux.bz2.itb
363 boot-y += vmlinux.lzma.itb
364 boot-y += vmlinux.lzo.itb
366 # compressed boot image targets (arch/mips/boot/compressed/)
368 bootz-y += vmlinuz.bin
369 bootz-y += vmlinuz.ecoff
370 bootz-y += vmlinuz.srec
371 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
372 bootz-y += uzImage.bin
376 rom.bin rom.sw: vmlinux
377 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
382 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
383 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
384 # convert to ECOFF using elf2ecoff.
386 quiet_cmd_32 = OBJCOPY $@
387 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
392 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
393 # ELF files from 32-bit files by conversion.
395 quiet_cmd_64 = OBJCOPY $@
396 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
400 all: $(all-y) $(KBUILD_DTBS)
403 $(boot-y): $(vmlinux-32) FORCE
404 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
405 $(bootvars-y) arch/mips/boot/$@
407 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
409 $(bootz-y): $(vmlinux-32) FORCE
410 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
411 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
414 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
419 CLEAN_FILES += vmlinux.32 vmlinux.64
422 core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
424 %.dtb %.dtb.S %.dtb.o: | scripts
425 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
429 $(Q)$(MAKE) $(build)=arch/mips/boot/dts
431 PHONY += dtbs_install
433 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
436 ifdef CONFIG_MIPS32_N32
437 @$(kecho) ' Checking missing-syscalls for N32'
438 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
440 ifdef CONFIG_MIPS32_O32
441 @$(kecho) ' Checking missing-syscalls for O32'
442 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
446 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
447 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
448 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
450 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
451 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
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
460 echo ' install - install kernel into $(INSTALL_PATH)'
461 echo ' vmlinux.ecoff - ECOFF boot image'
462 echo ' vmlinux.bin - Raw binary boot image'
463 echo ' vmlinux.srec - SREC boot image'
464 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
465 echo ' vmlinuz - Compressed boot(zboot) image'
466 echo ' vmlinuz.ecoff - ECOFF zboot image'
467 echo ' vmlinuz.bin - Raw binary zboot image'
468 echo ' vmlinuz.srec - SREC zboot image'
469 echo ' uImage - U-Boot image'
470 echo ' uImage.bin - U-Boot image (uncompressed)'
471 echo ' uImage.bz2 - U-Boot image (bz2)'
472 echo ' uImage.gz - U-Boot image (gzip)'
473 echo ' uImage.lzma - U-Boot image (lzma)'
474 echo ' uImage.lzo - U-Boot image (lzo)'
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)'
479 echo ' These will be default as appropriate for a configured platform.'
481 echo ' If you are targeting a system supported by generic kernels you may'
482 echo ' configure the kernel for a given architecture target like so:'
484 echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
486 echo ' Where BOARDS is some subset of the following:'
487 for board in $(sort $(BOARDS)); do echo " $${board}"; done
489 echo ' Specifically the following generic default configurations are'
492 $(foreach cfg,$(generic_defconfigs),
493 printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
495 echo ' The following legacy default configurations have been converted to'
496 echo ' generic and can still be used:'
498 $(foreach cfg,$(sort $(legacy_defconfigs)),
499 printf " %-24s - Build $($(cfg)-y)\n" $(cfg);)
501 echo ' Otherwise, the following default configurations are available:'
504 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
505 generic_defconfigs :=
508 # If the user generates a generic kernel configuration without specifying a
509 # list of boards to include the config fragments for, default to including all
510 # available board config fragments.
513 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
517 # Generic kernel configurations which merge generic_defconfig with the
518 # appropriate config fragments from arch/mips/configs/generic/, resulting in
519 # the ability to easily configure the kernel for a given architecture,
520 # endianness & set of boards without duplicating the needed configuration in
521 # hundreds of defconfig files.
523 define gen_generic_defconfigs
524 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
525 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
526 generic_defconfigs += $$(target)
527 $$(target): $(generic_config_dir)/$(bits)$(rev).config
528 $$(target): $(generic_config_dir)/$(endian).config
532 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
533 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
535 define describe_generic_defconfig
536 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
539 .PHONY: $(generic_defconfigs)
540 $(generic_defconfigs):
541 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
542 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
544 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
545 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
546 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
547 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
548 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
549 "$(origin BOARDS)" $(BOARDS)
550 $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
553 # Prevent generic merge_config rules attempting to merge single fragments
555 $(generic_config_dir)/%.config: ;
558 # Prevent direct use of generic_defconfig, which is intended to be used as the
559 # basis of the various ISA-specific targets generated above.
561 .PHONY: generic_defconfig
563 $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
564 $(Q)echo "used via an ISA-specific target from the following list:"
566 $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
571 # Legacy defconfig compatibility - these targets used to be real defconfigs but
572 # now that the boards have been converted to use the generic kernel they are
573 # wrappers around the generic rules above.
575 legacy_defconfigs += ocelot_defconfig
576 ocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot
578 legacy_defconfigs += sead3_defconfig
579 sead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3
581 legacy_defconfigs += sead3micro_defconfig
582 sead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3
584 legacy_defconfigs += xilfpga_defconfig
585 xilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga
587 .PHONY: $(legacy_defconfigs)
588 $(legacy_defconfigs):
589 $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)