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1da177e4 LT |
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 | ||
de0c1698 AB |
15 | KBUILD_DEFCONFIG := ip22_defconfig |
16 | ||
1da177e4 LT |
17 | # |
18 | # Select the object file format to substitute into the linker script. | |
19 | # | |
20 | ifdef CONFIG_CPU_LITTLE_ENDIAN | |
17f690be RB |
21 | 32bit-tool-archpref = mipsel |
22 | 64bit-tool-archpref = mips64el | |
1da177e4 LT |
23 | 32bit-bfd = elf32-tradlittlemips |
24 | 64bit-bfd = elf64-tradlittlemips | |
25 | 32bit-emul = elf32ltsmip | |
26 | 64bit-emul = elf64ltsmip | |
27 | else | |
17f690be RB |
28 | 32bit-tool-archpref = mips |
29 | 64bit-tool-archpref = mips64 | |
1da177e4 LT |
30 | 32bit-bfd = elf32-tradbigmips |
31 | 64bit-bfd = elf64-tradbigmips | |
32 | 32bit-emul = elf32btsmip | |
33 | 64bit-emul = elf64btsmip | |
34 | endif | |
35 | ||
875d43e7 | 36 | ifdef CONFIG_32BIT |
17f690be | 37 | tool-archpref = $(32bit-tool-archpref) |
1da177e4 LT |
38 | UTS_MACHINE := mips |
39 | endif | |
875d43e7 | 40 | ifdef CONFIG_64BIT |
17f690be | 41 | tool-archpref = $(64bit-tool-archpref) |
1da177e4 LT |
42 | UTS_MACHINE := mips64 |
43 | endif | |
44 | ||
17f690be RB |
45 | ifneq ($(SUBARCH),$(ARCH)) |
46 | ifeq ($(CROSS_COMPILE),) | |
3247989e | 47 | CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) |
17f690be | 48 | endif |
1da177e4 LT |
49 | endif |
50 | ||
7326c4e5 WZ |
51 | ifdef CONFIG_FUNCTION_GRAPH_TRACER |
52 | ifndef KBUILD_MCOUNT_RA_ADDRESS | |
53 | ifeq ($(call cc-option-yn,-mmcount-ra-address), y) | |
54 | cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS | |
55 | endif | |
56 | endif | |
57 | endif | |
1a4ba061 | 58 | cflags-y += $(call cc-option, -mno-check-zero-division) |
05e41404 | 59 | |
8145095c | 60 | ifdef CONFIG_32BIT |
1da177e4 LT |
61 | ld-emul = $(32bit-emul) |
62 | vmlinux-32 = vmlinux | |
63 | vmlinux-64 = vmlinux.64 | |
59b3e8e9 RB |
64 | |
65 | cflags-y += -mabi=32 | |
8145095c | 66 | endif |
1da177e4 | 67 | |
8145095c | 68 | ifdef CONFIG_64BIT |
8145095c RB |
69 | ld-emul = $(64bit-emul) |
70 | vmlinux-32 = vmlinux.32 | |
71 | vmlinux-64 = vmlinux | |
72 | ||
59b3e8e9 | 73 | cflags-y += -mabi=64 |
1da177e4 LT |
74 | endif |
75 | ||
8496b401 RB |
76 | all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) |
77 | all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) | |
1b93b3c3 | 78 | all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz |
59b3e8e9 | 79 | |
1da177e4 LT |
80 | # |
81 | # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel | |
82 | # code since it only slows down the whole thing. At some point we might make | |
83 | # use of global pointer optimizations but their use of $28 conflicts with | |
84 | # the current pointer optimization. | |
85 | # | |
86 | # The DECStation requires an ECOFF kernel for remote booting, other MIPS | |
87 | # machines may also. Since BFD is incredibly buggy with respect to | |
88 | # crossformat linking we rely on the elf2ecoff tool for format conversion. | |
89 | # | |
1da177e4 | 90 | cflags-y += -G 0 -mno-abicalls -fno-pic -pipe |
6218cf44 | 91 | cflags-y += -msoft-float |
9f83d839 | 92 | LDFLAGS_vmlinux += -G 0 -static -n -nostdlib |
6588169d SR |
93 | KBUILD_AFLAGS_MODULE += -mlong-calls |
94 | KBUILD_CFLAGS_MODULE += -mlong-calls | |
1da177e4 | 95 | |
72fbfb26 RB |
96 | cflags-y += -ffreestanding |
97 | ||
f425a6dc TS |
98 | # |
99 | # We explicitly add the endianness specifier if needed, this allows | |
100 | # to compile kernels with a toolchain for the other endianness. We | |
101 | # carefully avoid to add it redundantly because gcc 3.3/3.4 complains | |
102 | # when fed the toolchain default! | |
103 | # | |
25985edc | 104 | # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of |
59c51591 | 105 | # 2006-10-10 don't properly change the predefined symbols if -EB / -EL |
f9405412 RB |
106 | # are used, so we kludge that here. A bug has been filed at |
107 | # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. | |
108 | # | |
109 | undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ | |
110 | undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ | |
111 | predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ | |
112 | predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ | |
113 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) | |
114 | cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) | |
f425a6dc | 115 | |
9693a853 FBH |
116 | cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips) |
117 | ||
9007c9a2 RB |
118 | cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ |
119 | -fno-omit-frame-pointer | |
1da177e4 | 120 | |
1da177e4 LT |
121 | # |
122 | # CPU-dependent compiler/assembler options for optimization. | |
123 | # | |
59b3e8e9 RB |
124 | cflags-$(CONFIG_CPU_R3000) += -march=r3000 |
125 | cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 | |
126 | cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap | |
127 | cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap | |
128 | cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap | |
129 | cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap | |
130 | cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap | |
9200c0b2 | 131 | cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ |
59b3e8e9 | 132 | -Wa,-mips32 -Wa,--trap |
9200c0b2 | 133 | cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ |
59b3e8e9 | 134 | -Wa,-mips32r2 -Wa,--trap |
9200c0b2 | 135 | cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ |
59b3e8e9 | 136 | -Wa,-mips64 -Wa,--trap |
9200c0b2 | 137 | cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ |
59b3e8e9 RB |
138 | -Wa,-mips64r2 -Wa,--trap |
139 | cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap | |
c9e321e0 | 140 | cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ |
1da177e4 | 141 | -Wa,--trap |
542c1020 SK |
142 | cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ |
143 | -Wa,--trap | |
c9e321e0 | 144 | cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ |
1da177e4 | 145 | -Wa,--trap |
59b3e8e9 | 146 | cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ |
1da177e4 | 147 | -Wa,--trap |
59b3e8e9 | 148 | cflags-$(CONFIG_CPU_RM9000) += $(call cc-option,-march=rm9000,-march=r5000) \ |
1da177e4 | 149 | -Wa,--trap |
59b3e8e9 | 150 | cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ |
1da177e4 | 151 | -Wa,--trap |
59b3e8e9 RB |
152 | cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap |
153 | cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ | |
1da177e4 | 154 | -Wa,--trap |
7e69deb8 DD |
155 | cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap |
156 | ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) | |
157 | cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon | |
158 | endif | |
c9941158 | 159 | cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 |
1da177e4 | 160 | |
20d60d99 MR |
161 | cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) |
162 | cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) | |
163 | cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) | |
164 | ||
1da177e4 LT |
165 | ifdef CONFIG_CPU_SB1 |
166 | ifdef CONFIG_SB1_PASS_1_WORKAROUNDS | |
6588169d SR |
167 | KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds |
168 | KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds | |
1da177e4 LT |
169 | endif |
170 | endif | |
171 | ||
172 | # | |
173 | # Firmware support | |
174 | # | |
2f56cfdd | 175 | libs-$(CONFIG_ARC) += arch/mips/fw/arc/ |
df78b5c8 | 176 | libs-$(CONFIG_CFE) += arch/mips/fw/cfe/ |
231a35d3 TB |
177 | libs-$(CONFIG_SNIPROM) += arch/mips/fw/sni/ |
178 | libs-y += arch/mips/fw/lib/ | |
1da177e4 | 179 | |
ebc89718 RB |
180 | # |
181 | # Kernel compression | |
182 | # | |
183 | ifdef SYS_SUPPORTS_ZBOOT | |
184 | COMPRESSION_FNAME = vmlinuz | |
185 | else | |
186 | COMPRESSION_FNAME = vmlinux | |
187 | endif | |
188 | ||
1da177e4 LT |
189 | # |
190 | # Board-dependent options and extra files | |
191 | # | |
5d25b01c | 192 | include $(srctree)/arch/mips/Kbuild.platforms |
7ca5dc14 | 193 | |
384740dc | 194 | cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic |
1da177e4 LT |
195 | drivers-$(CONFIG_PCI) += arch/mips/pci/ |
196 | ||
adff90a9 FBH |
197 | # |
198 | # Automatically detect the build format. By default we choose | |
199 | # the elf format according to the load address. | |
200 | # We can always force a build with a 64-bits symbol format by | |
054c51b4 | 201 | # passing 'KBUILD_SYM32=no' option to the make's command line. |
adff90a9 FBH |
202 | # |
203 | ifdef CONFIG_64BIT | |
054c51b4 | 204 | ifndef KBUILD_SYM32 |
adff90a9 | 205 | ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) |
054c51b4 | 206 | KBUILD_SYM32 = y |
adff90a9 FBH |
207 | endif |
208 | endif | |
209 | ||
20d60d99 MR |
210 | ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) |
211 | cflags-y += -msym32 -DKBUILD_64BIT_SYM32 | |
212 | else | |
213 | ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) | |
214 | $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) | |
e58d95ab | 215 | endif |
adff90a9 FBH |
216 | endif |
217 | endif | |
218 | ||
222d394d | 219 | KBUILD_AFLAGS += $(cflags-y) |
51b563fc SR |
220 | KBUILD_CFLAGS += $(cflags-y) |
221 | KBUILD_CPPFLAGS += -D"VMLINUX_LOAD_ADDRESS=$(load-y)" | |
222 | KBUILD_CPPFLAGS += -D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)" | |
1da177e4 LT |
223 | |
224 | LDFLAGS += -m $(ld-emul) | |
225 | ||
59b3e8e9 | 226 | ifdef CONFIG_MIPS |
a0f97e06 | 227 | CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \ |
48c35b2d | 228 | egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ |
2a2c3e45 AN |
229 | sed -e 's/^\#define /-D/' -e "s/ /='/" -e "s/$$/'/") |
230 | ifdef CONFIG_64BIT | |
231 | CHECKFLAGS += -m64 | |
232 | endif | |
59b3e8e9 RB |
233 | endif |
234 | ||
1da177e4 LT |
235 | OBJCOPYFLAGS += --remove-section=.reginfo |
236 | ||
1da177e4 LT |
237 | head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o |
238 | ||
239 | libs-y += arch/mips/lib/ | |
1da177e4 | 240 | |
9aeb404b SR |
241 | # See arch/mips/Kbuild for content of core part of the kernel |
242 | core-y += arch/mips/ | |
1da177e4 LT |
243 | |
244 | drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ | |
245 | ||
363c55ca WZ |
246 | # suspend and hibernation support |
247 | drivers-$(CONFIG_PM) += arch/mips/power/ | |
248 | ||
1f21d2bd BM |
249 | ifdef CONFIG_LASAT |
250 | rom.bin rom.sw: vmlinux | |
251 | $(Q)$(MAKE) $(build)=arch/mips/lasat/image $@ | |
252 | endif | |
253 | ||
1da177e4 LT |
254 | # |
255 | # Some machines like the Indy need 32-bit ELF binaries for booting purposes. | |
256 | # Other need ECOFF, so we build a 32-bit ELF binary for them which we then | |
257 | # convert to ECOFF using elf2ecoff. | |
258 | # | |
259 | vmlinux.32: vmlinux | |
260 | $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
261 | ||
c1bf207d DD |
262 | |
263 | #obj-$(CONFIG_KPROBES) += kprobes.o | |
264 | ||
1da177e4 LT |
265 | # |
266 | # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit | |
267 | # ELF files from 32-bit files by conversion. | |
268 | # | |
269 | vmlinux.64: vmlinux | |
270 | $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
271 | ||
8496b401 | 272 | all: $(all-y) |
1da177e4 | 273 | |
35eaa1e9 | 274 | # boot |
961e196c SR |
275 | vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE |
276 | $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@ | |
1da177e4 | 277 | |
35eaa1e9 SR |
278 | # boot/compressed |
279 | vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE | |
280 | $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ | |
281 | VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@ | |
282 | ||
283 | ||
d745866e | 284 | CLEAN_FILES += vmlinux.32 vmlinux.64 |
1da177e4 | 285 | |
e48ce6b8 AN |
286 | archprepare: |
287 | ifdef CONFIG_MIPS32_N32 | |
288 | @echo ' Checking missing-syscalls for N32' | |
e3726304 | 289 | $(Q)$(MAKE) $(build)=. missing-syscalls ccflags-y="-mabi=n32" |
e48ce6b8 AN |
290 | endif |
291 | ifdef CONFIG_MIPS32_O32 | |
292 | @echo ' Checking missing-syscalls for O32' | |
e3726304 | 293 | $(Q)$(MAKE) $(build)=. missing-syscalls ccflags-y="-mabi=32" |
e48ce6b8 AN |
294 | endif |
295 | ||
59968d3b RB |
296 | install: |
297 | $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) | |
1b93b3c3 | 298 | $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) |
59968d3b RB |
299 | $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) |
300 | $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) | |
301 | ||
1da177e4 | 302 | archclean: |
d745866e SR |
303 | $(Q)$(MAKE) $(clean)=arch/mips/boot |
304 | $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed | |
305 | $(Q)$(MAKE) $(clean)=arch/mips/lasat | |
1da177e4 | 306 | |
e7865765 | 307 | define archhelp |
59968d3b | 308 | echo ' install - install kernel into $(INSTALL_PATH)' |
e7865765 RB |
309 | echo ' vmlinux.ecoff - ECOFF boot image' |
310 | echo ' vmlinux.bin - Raw binary boot image' | |
311 | echo ' vmlinux.srec - SREC boot image' | |
1b93b3c3 WZ |
312 | echo ' vmlinuz - Compressed boot(zboot) image' |
313 | echo ' vmlinuz.ecoff - ECOFF zboot image' | |
314 | echo ' vmlinuz.bin - Raw binary zboot image' | |
315 | echo ' vmlinuz.srec - SREC zboot image' | |
e7865765 | 316 | echo |
25985edc | 317 | echo ' These will be default as appropriate for a configured platform.' |
e7865765 | 318 | endef |