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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[deliverable/linux.git] / arch / mips / Makefile
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
15 archscripts: scripts_basic
16 $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
17
18 KBUILD_DEFCONFIG := ip22_defconfig
19
20 #
21 # Select the object file format to substitute into the linker script.
22 #
23 ifdef CONFIG_CPU_LITTLE_ENDIAN
24 32bit-tool-archpref = mipsel
25 64bit-tool-archpref = mips64el
26 32bit-bfd = elf32-tradlittlemips
27 64bit-bfd = elf64-tradlittlemips
28 32bit-emul = elf32ltsmip
29 64bit-emul = elf64ltsmip
30 else
31 32bit-tool-archpref = mips
32 64bit-tool-archpref = mips64
33 32bit-bfd = elf32-tradbigmips
34 64bit-bfd = elf64-tradbigmips
35 32bit-emul = elf32btsmip
36 64bit-emul = elf64btsmip
37 endif
38
39 ifdef CONFIG_32BIT
40 tool-archpref = $(32bit-tool-archpref)
41 UTS_MACHINE := mips
42 endif
43 ifdef CONFIG_64BIT
44 tool-archpref = $(64bit-tool-archpref)
45 UTS_MACHINE := mips64
46 endif
47
48 ifneq ($(SUBARCH),$(ARCH))
49 ifeq ($(CROSS_COMPILE),)
50 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
51 endif
52 endif
53
54 ifdef CONFIG_FUNCTION_GRAPH_TRACER
55 ifndef KBUILD_MCOUNT_RA_ADDRESS
56 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
57 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
58 endif
59 endif
60 endif
61 cflags-y += $(call cc-option, -mno-check-zero-division)
62
63 ifdef CONFIG_32BIT
64 ld-emul = $(32bit-emul)
65 vmlinux-32 = vmlinux
66 vmlinux-64 = vmlinux.64
67
68 cflags-y += -mabi=32
69 endif
70
71 ifdef CONFIG_64BIT
72 ld-emul = $(64bit-emul)
73 vmlinux-32 = vmlinux.32
74 vmlinux-64 = vmlinux
75
76 cflags-y += -mabi=64
77 endif
78
79 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
80 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
81 all-$(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 $28 conflicts with
87 # the current pointer optimization.
88 #
89 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
90 # machines may also. Since BFD is incredibly buggy with respect to
91 # crossformat linking we rely on the elf2ecoff tool for format conversion.
92 #
93 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
94 cflags-y += -msoft-float
95 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
96 KBUILD_AFLAGS_MODULE += -mlong-calls
97 KBUILD_CFLAGS_MODULE += -mlong-calls
98
99 ifeq ($(CONFIG_RELOCATABLE),y)
100 LDFLAGS_vmlinux += --emit-relocs
101 endif
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 #
108 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
109 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
110 endif
111
112 cflags-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 #
125 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
126 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
127 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
128 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
129 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
130 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
131
132 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
133 -fno-omit-frame-pointer
134 #
135 # CPU-dependent compiler/assembler options for optimization.
136 #
137 cflags-$(CONFIG_CPU_R3000) += -march=r3000
138 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
139 cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
140 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
141 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
142 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
143 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
144 cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
145 -Wa,-mips32 -Wa,--trap
146 cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
147 -Wa,-mips32r2 -Wa,--trap
148 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap
149 cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
150 -Wa,-mips64 -Wa,--trap
151 cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
152 -Wa,-mips64r2 -Wa,--trap
153 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
154 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
155 cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
156 -Wa,--trap
157 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
158 -Wa,--trap
159 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
160 -Wa,--trap
161 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
162 -Wa,--trap
163 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
164 -Wa,--trap
165 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
166 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
167 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
168 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
169 -Wa,--trap
170 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
171 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
172 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
173 endif
174 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
175 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
176
177 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
178 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
179 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
180
181 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
182 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
183 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
184 # similar directives in the kernel will spam the build logs with the following warnings:
185 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
186 # or
187 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
188 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
189 # been fixed properly.
190 mips-cflags := $(cflags-y)
191 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
192 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
193 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
194 endif
195 ifeq ($(CONFIG_CPU_MICROMIPS),y)
196 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
197 cflags-$(micromips-ase) += -mmicromips
198 endif
199 ifeq ($(CONFIG_CPU_HAS_MSA),y)
200 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
201 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
202 endif
203 toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
204 cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
205
206 cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_NEVER) += -mcompact-branches=never
207 cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_OPTIMAL) += -mcompact-branches=optimal
208 cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_ALWAYS) += -mcompact-branches=always
209
210 #
211 # Firmware support
212 #
213 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
214 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
215 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
216 libs-y += arch/mips/fw/lib/
217
218 #
219 # Kernel compression
220 #
221 ifdef SYS_SUPPORTS_ZBOOT
222 COMPRESSION_FNAME = vmlinuz
223 else
224 COMPRESSION_FNAME = vmlinux
225 endif
226
227 #
228 # Board-dependent options and extra files
229 #
230 include arch/mips/Kbuild.platforms
231
232 ifdef CONFIG_PHYSICAL_START
233 load-y = $(CONFIG_PHYSICAL_START)
234 endif
235 entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
236 | grep "\bkernel_entry\b" | cut -f1 -d \ )
237
238 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
239 drivers-$(CONFIG_PCI) += arch/mips/pci/
240
241 #
242 # Automatically detect the build format. By default we choose
243 # the elf format according to the load address.
244 # We can always force a build with a 64-bits symbol format by
245 # passing 'KBUILD_SYM32=no' option to the make's command line.
246 #
247 ifdef CONFIG_64BIT
248 ifndef KBUILD_SYM32
249 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
250 KBUILD_SYM32 = y
251 endif
252 endif
253
254 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
255 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
256 else
257 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
258 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
259 endif
260 endif
261 endif
262
263 KBUILD_AFLAGS += $(cflags-y)
264 KBUILD_CFLAGS += $(cflags-y)
265 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
266 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
267
268 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
269 VMLINUX_ENTRY_ADDRESS=$(entry-y)
270
271 LDFLAGS += -m $(ld-emul)
272
273 ifdef CONFIG_MIPS
274 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
275 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
276 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
277 ifdef CONFIG_64BIT
278 CHECKFLAGS += -m64
279 endif
280 endif
281
282 OBJCOPYFLAGS += --remove-section=.reginfo
283
284 head-y := arch/mips/kernel/head.o
285
286 libs-y += arch/mips/lib/
287 libs-y += arch/mips/math-emu/
288
289 # See arch/mips/Kbuild for content of core part of the kernel
290 core-y += arch/mips/
291
292 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
293
294 # suspend and hibernation support
295 drivers-$(CONFIG_PM) += arch/mips/power/
296
297 # boot image targets (arch/mips/boot/)
298 boot-y := vmlinux.bin
299 boot-y += vmlinux.ecoff
300 boot-y += vmlinux.srec
301 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
302 boot-y += uImage
303 boot-y += uImage.bin
304 boot-y += uImage.bz2
305 boot-y += uImage.gz
306 boot-y += uImage.lzma
307 boot-y += uImage.lzo
308 endif
309
310 # compressed boot image targets (arch/mips/boot/compressed/)
311 bootz-y := vmlinuz
312 bootz-y += vmlinuz.bin
313 bootz-y += vmlinuz.ecoff
314 bootz-y += vmlinuz.srec
315
316 ifdef CONFIG_LASAT
317 rom.bin rom.sw: vmlinux
318 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
319 $(bootvars-y) $@
320 endif
321
322 CMD_RELOCS = arch/mips/boot/tools/relocs
323 quiet_cmd_relocs = RELOCS $<
324 cmd_relocs = $(CMD_RELOCS) $<
325
326 #
327 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
328 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
329 # convert to ECOFF using elf2ecoff.
330 #
331 quiet_cmd_32 = OBJCOPY $@
332 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
333 vmlinux.32: vmlinux
334 ifeq ($(CONFIG_RELOCATABLE)$(CONFIG_64BIT),yy)
335 # Currently, objcopy fails to handle the relocations in the elf64
336 # So the relocs tool must be run here to remove them first
337 $(call cmd,relocs)
338 endif
339 $(call cmd,32)
340
341 #
342 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
343 # ELF files from 32-bit files by conversion.
344 #
345 quiet_cmd_64 = OBJCOPY $@
346 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
347 vmlinux.64: vmlinux
348 $(call cmd,64)
349
350 all: $(all-y)
351
352 # boot
353 $(boot-y): $(vmlinux-32) FORCE
354 ifeq ($(CONFIG_RELOCATABLE)$(CONFIG_32BIT),yy)
355 $(call cmd,relocs)
356 endif
357 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
358 $(bootvars-y) arch/mips/boot/$@
359
360 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
361 # boot/compressed
362 $(bootz-y): $(vmlinux-32) FORCE
363 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
364 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
365 else
366 vmlinuz: FORCE
367 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
368 /bin/false
369 endif
370
371
372 CLEAN_FILES += vmlinux.32 vmlinux.64
373
374 # device-trees
375 core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
376
377 %.dtb %.dtb.S %.dtb.o: | scripts
378 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
379
380 PHONY += dtbs
381 dtbs: scripts
382 $(Q)$(MAKE) $(build)=arch/mips/boot/dts
383
384 PHONY += dtbs_install
385 dtbs_install:
386 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
387
388 archprepare:
389 ifdef CONFIG_MIPS32_N32
390 @echo ' Checking missing-syscalls for N32'
391 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
392 endif
393 ifdef CONFIG_MIPS32_O32
394 @echo ' Checking missing-syscalls for O32'
395 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
396 endif
397
398 install:
399 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
400 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
401 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
402 endif
403 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
404 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
405
406 archclean:
407 $(Q)$(MAKE) $(clean)=arch/mips/boot
408 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
409 $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
410 $(Q)$(MAKE) $(clean)=arch/mips/lasat
411
412 define archhelp
413 echo ' install - install kernel into $(INSTALL_PATH)'
414 echo ' vmlinux.ecoff - ECOFF boot image'
415 echo ' vmlinux.bin - Raw binary boot image'
416 echo ' vmlinux.srec - SREC boot image'
417 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
418 echo ' vmlinuz - Compressed boot(zboot) image'
419 echo ' vmlinuz.ecoff - ECOFF zboot image'
420 echo ' vmlinuz.bin - Raw binary zboot image'
421 echo ' vmlinuz.srec - SREC zboot image'
422 echo ' uImage - U-Boot image'
423 echo ' uImage.bin - U-Boot image (uncompressed)'
424 echo ' uImage.bz2 - U-Boot image (bz2)'
425 echo ' uImage.gz - U-Boot image (gzip)'
426 echo ' uImage.lzma - U-Boot image (lzma)'
427 echo ' uImage.lzo - U-Boot image (lzo)'
428 echo ' dtbs - Device-tree blobs for enabled boards'
429 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
430 echo
431 echo ' These will be default as appropriate for a configured platform.'
432 endef
Linux kernel - Deliverables
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