17f93314b94e8815b0f761566fd64eec6f80d72f
[sfrench/cifs-2.6.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 KBUILD_DEFCONFIG := ip22_defconfig
16
17 #
18 # Select the object file format to substitute into the linker script.
19 #
20 ifdef CONFIG_CPU_LITTLE_ENDIAN
21 32bit-tool-archpref     = mipsel
22 64bit-tool-archpref     = mips64el
23 32bit-bfd               = elf32-tradlittlemips
24 64bit-bfd               = elf64-tradlittlemips
25 32bit-emul              = elf32ltsmip
26 64bit-emul              = elf64ltsmip
27 else
28 32bit-tool-archpref     = mips
29 64bit-tool-archpref     = mips64
30 32bit-bfd               = elf32-tradbigmips
31 64bit-bfd               = elf64-tradbigmips
32 32bit-emul              = elf32btsmip
33 64bit-emul              = elf64btsmip
34 endif
35
36 ifdef CONFIG_32BIT
37 tool-archpref           = $(32bit-tool-archpref)
38 UTS_MACHINE             := mips
39 endif
40 ifdef CONFIG_64BIT
41 tool-archpref           = $(64bit-tool-archpref)
42 UTS_MACHINE             := mips64
43 endif
44
45 ifneq ($(SUBARCH),$(ARCH))
46   ifeq ($(CROSS_COMPILE),)
47     CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)
48   endif
49 endif
50
51 ifndef CONFIG_FUNCTION_TRACER
52 cflags-y := -ffunction-sections
53 endif
54 ifdef CONFIG_FUNCTION_GRAPH_TRACER
55   ifndef KBUILD_MCOUNT_RA_ADDRESS
56     ifeq ($(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 $28 conflicts with
87 # the current pointer optimization.
88 #
89 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
90 # machines may also.  Since BFD is incredibly buggy with respect to
91 # crossformat linking we rely on the elf2ecoff tool for format conversion.
92 #
93 cflags-y                        += -G 0 -mno-abicalls -fno-pic -pipe
94 cflags-y                        += -msoft-float
95 LDFLAGS_vmlinux                 += -G 0 -static -n -nostdlib
96 MODFLAGS                        += -mlong-calls
97
98 cflags-y += -ffreestanding
99
100 #
101 # We explicitly add the endianness specifier if needed, this allows
102 # to compile kernels with a toolchain for the other endianness. We
103 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
104 # when fed the toolchain default!
105 #
106 # Certain gcc versions upto gcc 4.1.1 (probably 4.2-subversion as of
107 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
108 # are used, so we kludge that here.  A bug has been filed at
109 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
110 #
111 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
112 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
113 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
114 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
115 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
116 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
117
118 cflags-$(CONFIG_CPU_HAS_SMARTMIPS)      += $(call cc-option,-msmartmips)
119
120 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
121                                    -fno-omit-frame-pointer
122
123 #
124 # CPU-dependent compiler/assembler options for optimization.
125 #
126 cflags-$(CONFIG_CPU_R3000)      += -march=r3000
127 cflags-$(CONFIG_CPU_TX39XX)     += -march=r3900
128 cflags-$(CONFIG_CPU_R6000)      += -march=r6000 -Wa,--trap
129 cflags-$(CONFIG_CPU_R4300)      += -march=r4300 -Wa,--trap
130 cflags-$(CONFIG_CPU_VR41XX)     += -march=r4100 -Wa,--trap
131 cflags-$(CONFIG_CPU_R4X00)      += -march=r4600 -Wa,--trap
132 cflags-$(CONFIG_CPU_TX49XX)     += -march=r4600 -Wa,--trap
133 cflags-$(CONFIG_CPU_MIPS32_R1)  += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
134                         -Wa,-mips32 -Wa,--trap
135 cflags-$(CONFIG_CPU_MIPS32_R2)  += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
136                         -Wa,-mips32r2 -Wa,--trap
137 cflags-$(CONFIG_CPU_MIPS64_R1)  += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
138                         -Wa,-mips64 -Wa,--trap
139 cflags-$(CONFIG_CPU_MIPS64_R2)  += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
140                         -Wa,-mips64r2 -Wa,--trap
141 cflags-$(CONFIG_CPU_R5000)      += -march=r5000 -Wa,--trap
142 cflags-$(CONFIG_CPU_R5432)      += $(call cc-option,-march=r5400,-march=r5000) \
143                         -Wa,--trap
144 cflags-$(CONFIG_CPU_R5500)      += $(call cc-option,-march=r5500,-march=r5000) \
145                         -Wa,--trap
146 cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-option,-march=rm5200,-march=r5000) \
147                         -Wa,--trap
148 cflags-$(CONFIG_CPU_RM7000)     += $(call cc-option,-march=rm7000,-march=r5000) \
149                         -Wa,--trap
150 cflags-$(CONFIG_CPU_RM9000)     += $(call cc-option,-march=rm9000,-march=r5000) \
151                         -Wa,--trap
152 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-march=sb1,-march=r5000) \
153                         -Wa,--trap
154 cflags-$(CONFIG_CPU_R8000)      += -march=r8000 -Wa,--trap
155 cflags-$(CONFIG_CPU_R10000)     += $(call cc-option,-march=r10000,-march=r8000) \
156                         -Wa,--trap
157 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
158 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
159 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
160 endif
161
162 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(call cc-option,-mfix-r4000,)
163 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(call cc-option,-mfix-r4400,)
164 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(call cc-option,-mno-daddi,)
165
166 ifdef CONFIG_CPU_SB1
167 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
168 MODFLAGS        += -msb1-pass1-workarounds
169 endif
170 endif
171
172 #
173 # Firmware support
174 #
175 libs-$(CONFIG_ARC)              += arch/mips/fw/arc/
176 libs-$(CONFIG_CFE)              += arch/mips/fw/cfe/
177 libs-$(CONFIG_SNIPROM)          += arch/mips/fw/sni/
178 libs-y                          += arch/mips/fw/lib/
179
180 #
181 # Kernel compression
182 #
183 ifdef SYS_SUPPORTS_ZBOOT
184 COMPRESSION_FNAME               = vmlinuz
185 else
186 COMPRESSION_FNAME               = vmlinux
187 endif
188
189 #
190 # Board-dependent options and extra files
191 #
192 include $(srctree)/arch/mips/Kbuild.platforms
193
194 #
195 # Common NXP PNX8550
196 #
197 core-$(CONFIG_SOC_PNX8550)      += arch/mips/pnx8550/common/
198 cflags-$(CONFIG_SOC_PNX8550)    += -I$(srctree)/arch/mips/include/asm/mach-pnx8550
199
200 #
201 # NXP PNX8550 JBS board
202 #
203 core-$(CONFIG_PNX8550_JBS)      += arch/mips/pnx8550/jbs/
204 #cflags-$(CONFIG_PNX8550_JBS)   += -I$(srctree)/arch/mips/include/asm/mach-pnx8550
205 load-$(CONFIG_PNX8550_JBS)      += 0xffffffff80060000
206
207 # NXP PNX8550 STB810 board
208 #
209 core-$(CONFIG_PNX8550_STB810)   += arch/mips/pnx8550/stb810/
210 load-$(CONFIG_PNX8550_STB810)   += 0xffffffff80060000
211
212 cflags-y                        += -I$(srctree)/arch/mips/include/asm/mach-generic
213 drivers-$(CONFIG_PCI)           += arch/mips/pci/
214
215 #
216 # Automatically detect the build format. By default we choose
217 # the elf format according to the load address.
218 # We can always force a build with a 64-bits symbol format by
219 # passing 'KBUILD_SYM32=no' option to the make's command line.
220 #
221 ifdef CONFIG_64BIT
222   ifndef KBUILD_SYM32
223     ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
224       KBUILD_SYM32 = y
225     endif
226   endif
227
228   ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
229     cflags-y += -msym32 -DKBUILD_64BIT_SYM32
230   else
231     ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
232       $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
233     endif
234   endif
235 endif
236
237 KBUILD_AFLAGS   += $(cflags-y)
238 KBUILD_CFLAGS   += $(cflags-y)
239 KBUILD_CPPFLAGS += -D"VMLINUX_LOAD_ADDRESS=$(load-y)"
240 KBUILD_CPPFLAGS += -D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)"
241
242 LDFLAGS                 += -m $(ld-emul)
243
244 ifdef CONFIG_MIPS
245 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \
246         egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
247         sed -e 's/^\#define /-D/' -e "s/ /='/" -e "s/$$/'/")
248 ifdef CONFIG_64BIT
249 CHECKFLAGS              += -m64
250 endif
251 endif
252
253 OBJCOPYFLAGS            += --remove-section=.reginfo
254
255 head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o
256
257 libs-y                  += arch/mips/lib/
258
259 # See arch/mips/Kbuild for content of core part of the kernel
260 core-y += arch/mips/
261
262 drivers-$(CONFIG_OPROFILE)      += arch/mips/oprofile/
263
264 # suspend and hibernation support
265 drivers-$(CONFIG_PM)    += arch/mips/power/
266
267 ifdef CONFIG_LASAT
268 rom.bin rom.sw: vmlinux
269         $(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
270 endif
271
272 #
273 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
274 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
275 # convert to ECOFF using elf2ecoff.
276 #
277 vmlinux.32: vmlinux
278         $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
279
280 #
281 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
282 # ELF files from 32-bit files by conversion.
283 #
284 vmlinux.64: vmlinux
285         $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
286
287 makeboot =$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) $(1)
288 makezboot =$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
289            VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $(1)
290
291 all:    $(all-y)
292
293 vmlinuz: vmlinux FORCE
294         +@$(call makezboot,$@)
295
296 vmlinuz.bin: vmlinux
297         +@$(call makezboot,$@)
298
299 vmlinuz.ecoff: vmlinux
300         +@$(call makezboot,$@)
301
302 vmlinuz.srec: vmlinux
303         +@$(call makezboot,$@)
304
305 vmlinux.bin: $(vmlinux-32)
306         +@$(call makeboot,$@)
307
308 vmlinux.ecoff: $(vmlinux-32)
309         +@$(call makeboot,$@)
310
311 vmlinux.srec: $(vmlinux-32)
312         +@$(call makeboot,$@)
313
314 CLEAN_FILES += vmlinux.ecoff \
315                vmlinux.srec
316
317 archprepare:
318 ifdef CONFIG_MIPS32_N32
319         @echo '  Checking missing-syscalls for N32'
320         $(Q)$(MAKE) $(build)=. missing-syscalls EXTRA_CFLAGS="-mabi=n32"
321 endif
322 ifdef CONFIG_MIPS32_O32
323         @echo '  Checking missing-syscalls for O32'
324         $(Q)$(MAKE) $(build)=. missing-syscalls EXTRA_CFLAGS="-mabi=32"
325 endif
326
327 install:
328         $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
329         $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
330         $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
331         $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
332
333 archclean:
334         @$(MAKE) $(clean)=arch/mips/boot
335         @$(MAKE) $(clean)=arch/mips/boot/compressed
336         @$(MAKE) $(clean)=arch/mips/lasat
337
338 define archhelp
339         echo '  install              - install kernel into $(INSTALL_PATH)'
340         echo '  vmlinux.ecoff        - ECOFF boot image'
341         echo '  vmlinux.bin          - Raw binary boot image'
342         echo '  vmlinux.srec         - SREC boot image'
343         echo '  vmlinuz              - Compressed boot(zboot) image'
344         echo '  vmlinuz.ecoff        - ECOFF zboot image'
345         echo '  vmlinuz.bin          - Raw binary zboot image'
346         echo '  vmlinuz.srec         - SREC zboot image'
347         echo
348         echo '  These will be default as apropriate for a configured platform.'
349 endef
350
351 CLEAN_FILES += vmlinux.32 \
352                vmlinux.64 \
353                vmlinux.ecoff \
354                vmlinuz \
355                vmlinuz.ecoff \
356                vmlinuz.bin \
357                vmlinuz.srec