1 # 1 #
2 # This file is subject to the terms and condit 2 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main 3 # License. See the file "COPYING" in the main directory of this archive
4 # for more details. 4 # for more details.
5 # 5 #
6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Bae 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
7 # DECStation modifications by Paul M. Antoine, 7 # DECStation modifications by Paul M. Antoine, 1996
8 # Copyright (C) 2002, 2003, 2004 Maciej W. Ro 8 # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
9 # 9 #
10 # This file is included by the global makefile 10 # This file is included by the global makefile so that you can add your own
11 # architecture-specific flags and dependencies !! 11 # architecture-specific flags and dependencies. Remember to do have actions
>> 12 # for "archclean" cleaning up for this architecture.
12 # 13 #
13 14
14 archscripts: scripts_basic !! 15 KBUILD_DEFCONFIG := ip22_defconfig
15 $(Q)$(MAKE) $(build)=arch/mips/tools e <<
16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) <<
17 $(Q)$(MAKE) $(build)=arch/mips/tools l <<
18 endif <<
19 $(Q)$(MAKE) $(build)=arch/mips/boot/to <<
20 <<
21 KBUILD_DEFCONFIG := 32r2el_defconfig <<
22 KBUILD_DTBS := dtbs <<
23 16
24 # 17 #
25 # Select the object file format to substitute 18 # Select the object file format to substitute into the linker script.
26 # 19 #
27 ifdef CONFIG_CPU_LITTLE_ENDIAN 20 ifdef CONFIG_CPU_LITTLE_ENDIAN
28 32bit-tool-archpref = mipsel 21 32bit-tool-archpref = mipsel
29 64bit-tool-archpref = mips64el 22 64bit-tool-archpref = mips64el
30 32bit-bfd = elf32-tradlittlemips 23 32bit-bfd = elf32-tradlittlemips
31 64bit-bfd = elf64-tradlittlemips 24 64bit-bfd = elf64-tradlittlemips
32 32bit-emul = elf32ltsmip 25 32bit-emul = elf32ltsmip
33 64bit-emul = elf64ltsmip 26 64bit-emul = elf64ltsmip
34 else 27 else
35 32bit-tool-archpref = mips 28 32bit-tool-archpref = mips
36 64bit-tool-archpref = mips64 29 64bit-tool-archpref = mips64
37 32bit-bfd = elf32-tradbigmips 30 32bit-bfd = elf32-tradbigmips
38 64bit-bfd = elf64-tradbigmips 31 64bit-bfd = elf64-tradbigmips
39 32bit-emul = elf32btsmip 32 32bit-emul = elf32btsmip
40 64bit-emul = elf64btsmip 33 64bit-emul = elf64btsmip
41 endif 34 endif
42 35
43 ifdef CONFIG_32BIT 36 ifdef CONFIG_32BIT
44 tool-archpref = $(32bit-tool-archpre 37 tool-archpref = $(32bit-tool-archpref)
45 UTS_MACHINE := mips 38 UTS_MACHINE := mips
46 endif 39 endif
47 ifdef CONFIG_64BIT 40 ifdef CONFIG_64BIT
48 tool-archpref = $(64bit-tool-archpre 41 tool-archpref = $(64bit-tool-archpref)
49 UTS_MACHINE := mips64 42 UTS_MACHINE := mips64
50 endif 43 endif
51 44
52 ifdef cross_compiling !! 45 ifneq ($(SUBARCH),$(ARCH))
53 ifeq ($(CROSS_COMPILE),) 46 ifeq ($(CROSS_COMPILE),)
54 CROSS_COMPILE := $(call cc-cross-prefix, $ 47 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
55 endif 48 endif
56 endif 49 endif
57 50
58 ifdef CONFIG_FUNCTION_GRAPH_TRACER 51 ifdef CONFIG_FUNCTION_GRAPH_TRACER
59 ifndef KBUILD_MCOUNT_RA_ADDRESS 52 ifndef KBUILD_MCOUNT_RA_ADDRESS
60 ifeq ($(call cc-option-yn,-mmcount-ra-addr 53 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
61 cflags-y += -mmcount-ra-address -DKBUILD 54 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
62 endif 55 endif
63 endif 56 endif
64 endif 57 endif
65 cflags-y += $(call cc-option, -mno-check-zero- 58 cflags-y += $(call cc-option, -mno-check-zero-division)
66 59
67 ifdef CONFIG_32BIT 60 ifdef CONFIG_32BIT
68 ld-emul = $(32bit-emul) 61 ld-emul = $(32bit-emul)
69 vmlinux-32 = vmlinux 62 vmlinux-32 = vmlinux
70 vmlinux-64 = vmlinux.64 63 vmlinux-64 = vmlinux.64
71 64
72 cflags-y += -mabi=32 65 cflags-y += -mabi=32
73 endif 66 endif
74 67
75 ifdef CONFIG_64BIT 68 ifdef CONFIG_64BIT
76 ld-emul = $(64bit-emul) 69 ld-emul = $(64bit-emul)
77 vmlinux-32 = vmlinux.32 70 vmlinux-32 = vmlinux.32
78 vmlinux-64 = vmlinux 71 vmlinux-64 = vmlinux
79 72
80 cflags-y += -mabi=64 73 cflags-y += -mabi=64
81 endif 74 endif
82 75
83 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-3 76 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
84 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-6 77 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 78 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
86 79
87 # 80 #
88 # GCC uses -G 0 -mabicalls -fpic as default. 81 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
89 # code since it only slows down the whole thin 82 # code since it only slows down the whole thing. At some point we might make
90 # use of global pointer optimizations but thei 83 # use of global pointer optimizations but their use of $28 conflicts with
91 # the current pointer optimization. 84 # the current pointer optimization.
92 # 85 #
93 # The DECStation requires an ECOFF kernel for 86 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
94 # machines may also. Since BFD is incredibly 87 # machines may also. Since BFD is incredibly buggy with respect to
95 # crossformat linking we rely on the elf2ecoff 88 # crossformat linking we rely on the elf2ecoff tool for format conversion.
96 # 89 #
97 cflags-y += -G 0 -mno-a 90 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
98 cflags-y += -msoft-floa !! 91 cflags-y += -msoft-float
99 LDFLAGS_vmlinux += -G 0 -stati 92 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
100 KBUILD_AFLAGS_MODULE += -mlong-call 93 KBUILD_AFLAGS_MODULE += -mlong-calls
101 KBUILD_CFLAGS_MODULE += -mlong-call 94 KBUILD_CFLAGS_MODULE += -mlong-calls
102 95
103 ifeq ($(CONFIG_RELOCATABLE),y) !! 96 #
104 LDFLAGS_vmlinux += --emit-relo !! 97 # pass -msoft-float to GAS if it supports it. However on newer binutils
>> 98 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
>> 99 # set ".set hardfloat" in all files which manipulate floating point registers.
>> 100 #
>> 101 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
>> 102 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
105 endif 103 endif
106 104
107 cflags-y += -ffreestanding 105 cflags-y += -ffreestanding
108 106
109 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB !! 107 #
110 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL !! 108 # We explicitly add the endianness specifier if needed, this allows
>> 109 # to compile kernels with a toolchain for the other endianness. We
>> 110 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
>> 111 # when fed the toolchain default!
>> 112 #
>> 113 # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
>> 114 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
>> 115 # are used, so we kludge that here. A bug has been filed at
>> 116 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
>> 117 #
>> 118 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
>> 119 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
>> 120 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
>> 121 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
>> 122 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
>> 123 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
111 124
112 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-o 125 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
113 -fno-omit-f 126 -fno-omit-frame-pointer
114 <<
115 # Some distribution-specific toolchains might <<
116 # option during the build, which adds a simple <<
117 # of every function. This stack probe is to e <<
118 # stack space, else a SEGV is generated. This <<
119 # as kernel stacks are small, placed in unmapp <<
120 # grow when overflowed. Especially on SGI IP2 <<
121 # lead to a NULL pointer dereference in _raw_s <<
122 # <<
123 # In disassembly, this stack probe appears at <<
124 # sd zero,<offset>(sp) <<
125 # Where <offset> is a negative value. <<
126 # <<
127 cflags-y += -fno-stack-check <<
128 <<
129 # binutils from v2.35 when built with --enable <<
130 # supports an -mfix-loongson3-llsc flag which <<
131 # instruction to work around a CPU bug (see __ <<
132 # for a description). <<
133 # <<
134 # We disable this in order to prevent the asse <<
135 # instruction that labels refer to, ie. if we <<
136 # <<
137 # 1: ll v0, 0(a0) <<
138 # <<
139 # ...then with the assembler fix applied the l <<
140 # instruction inserted by the assembler, and i <<
141 # exception table the table would no longer co <<
142 # instruction. <<
143 # <<
144 # Avoid this by explicitly disabling that asse <<
145 # <<
146 cflags-y += $(call cc-option,-Wa$(comma)-mno-f <<
147 <<
148 # 127 #
149 # CPU-dependent compiler/assembler options for 128 # CPU-dependent compiler/assembler options for optimization.
150 # 129 #
151 cflags-$(CONFIG_CPU_R3000) += $(call cc-o !! 130 cflags-$(CONFIG_CPU_R3000) += -march=r3000
152 cflags-$(CONFIG_CPU_R4300) += $(call cc-o !! 131 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
153 cflags-$(CONFIG_CPU_R4X00) += $(call cc-o !! 132 cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
154 cflags-$(CONFIG_CPU_TX49XX) += $(call cc-o !! 133 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
155 cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips !! 134 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
156 cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips !! 135 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
157 cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips !! 136 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
158 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips !! 137 cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
159 cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips !! 138 -Wa,-mips32 -Wa,--trap
160 cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips !! 139 cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
161 cflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips !! 140 -Wa,-mips32r2 -Wa,--trap
>> 141 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap
>> 142 cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 143 -Wa,-mips64 -Wa,--trap
>> 144 cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 145 -Wa,-mips64r2 -Wa,--trap
162 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips 146 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
163 cflags-$(CONFIG_CPU_P5600) += $(call cc-o !! 147 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
164 -Wa,--trap -modd-spreg !! 148 cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
165 cflags-$(CONFIG_CPU_R5000) += $(call cc-o <<
166 -Wa,--trap 149 -Wa,--trap
167 cflags-$(CONFIG_CPU_R5500) += $(call cc-o !! 150 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
168 -Wa,--trap 151 -Wa,--trap
169 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-o !! 152 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
170 -Wa,--trap 153 -Wa,--trap
171 cflags-$(CONFIG_CPU_RM7000) += $(call cc-o !! 154 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
172 -Wa,--trap 155 -Wa,--trap
173 cflags-$(CONFIG_CPU_SB1) += $(call cc-o !! 156 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
174 -Wa,--trap 157 -Wa,--trap
175 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 158 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
176 cflags-$(CONFIG_CPU_SB1) += $(call cc-o 159 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
177 cflags-$(CONFIG_CPU_R10000) += $(call cc-o !! 160 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
>> 161 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
178 -Wa,--trap 162 -Wa,--trap
179 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -march=o !! 163 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 164 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 165 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
>> 166 endif
180 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix- 167 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
181 cflags-$(CONFIG_CPU_BMIPS) += -march=mips !! 168 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
182 !! 169 #
183 cflags-$(CONFIG_CPU_LOONGSON2E) += \ !! 170 # binutils from v2.25 on and gcc starting from v4.9.0 treat -march=loongson3a
184 $(call cc-option,-marc !! 171 # as MIPS64 R1; older versions as just R1. This leaves the possibility open
185 cflags-$(CONFIG_CPU_LOONGSON2F) += \ !! 172 # that GCC might generate R2 code for -march=loongson3a which then is rejected
186 $(call cc-option,-marc !! 173 # by GAS. The cc-option can't probe for this behaviour so -march=loongson3a
187 # Some -march= flags enable MMI instructions, !! 174 # can't easily be used safely within the kbuild framework.
188 # support being enabled alongside -msoft-float !! 175 #
189 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc- !! 176 cflags-$(CONFIG_CPU_LOONGSON3) += \
190 cflags-$(CONFIG_CPU_LOONGSON64) += \ !! 177 $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
191 $(call cc-option,-marc !! 178 -Wa,-mips64r2 -Wa,--trap
192 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-o <<
193 179
194 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(c 180 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
195 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(c 181 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
196 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(c 182 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
197 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS <<
198 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-m <<
199 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,- <<
200 endif <<
201 <<
202 # <<
203 # Some versions of binutils, not currently mai <<
204 # an -mfix-loongson3-llsc flag which emits a s <<
205 # to work around a CPU bug (see __SYNC_loongso <<
206 # description). <<
207 # <<
208 # We disable this in order to prevent the asse <<
209 # instruction that labels refer to, ie. if we <<
210 # <<
211 # 1: ll v0, 0(a0) <<
212 # <<
213 # ...then with the assembler fix applied the l <<
214 # instruction inserted by the assembler, and i <<
215 # exception table the table would no longer co <<
216 # instruction. <<
217 # <<
218 # Avoid this by explicitly disabling that asse <<
219 # binutils does not merge support for the flag <<
220 # this later - for now it ensures vendor toolc <<
221 # <<
222 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-o <<
223 183
224 # For smartmips configurations, there are hund 184 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
225 # in assembly and header files. smartmips is o 185 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
226 # and there is no support for 64-bit. Various 186 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
227 # similar directives in the kernel will spam t 187 # similar directives in the kernel will spam the build logs with the following warnings:
228 # Warning: the `smartmips' extension requires 188 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
229 # or 189 # or
230 # Warning: the 64-bit MIPS architecture does n 190 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
231 # Pass -Wa,--no-warn to disable all assembler 191 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
232 # been fixed properly. 192 # been fixed properly.
233 mips-cflags := $(c 193 mips-cflags := $(cflags-y)
234 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 194 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
235 smartmips-ase := $(c 195 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
236 cflags-$(smartmips-ase) += -ms 196 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
237 endif 197 endif
238 ifeq ($(CONFIG_CPU_MICROMIPS),y) 198 ifeq ($(CONFIG_CPU_MICROMIPS),y)
239 micromips-ase := $(c 199 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
240 cflags-$(micromips-ase) += -mm 200 cflags-$(micromips-ase) += -mmicromips
241 endif 201 endif
242 ifeq ($(CONFIG_CPU_HAS_MSA),y) 202 ifeq ($(CONFIG_CPU_HAS_MSA),y)
243 toolchain-msa := $(c 203 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
244 cflags-$(toolchain-msa) += -DT 204 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
245 endif 205 endif
246 toolchain-virt := $(c <<
247 cflags-$(toolchain-virt) += -DT <<
248 # For -mmicromips, use -Wa,-fatal-warnings to <<
249 # only warns <<
250 xpa-cflags-y := $(m <<
251 xpa-cflags-$(micromips-ase) += -mm <<
252 toolchain-xpa := $(c <<
253 cflags-$(toolchain-xpa) += -DT <<
254 toolchain-crc := $(c <<
255 cflags-$(toolchain-crc) += -DT <<
256 toolchain-dsp := $(c <<
257 cflags-$(toolchain-dsp) += -DT <<
258 toolchain-ginv := $(c <<
259 cflags-$(toolchain-ginv) += -DT <<
260 206
261 # 207 #
262 # Firmware support 208 # Firmware support
263 # 209 #
264 libs-$(CONFIG_FW_ARC) += arch/mips/f 210 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
265 libs-$(CONFIG_FW_CFE) += arch/mips/f 211 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
266 libs-$(CONFIG_FW_SNIPROM) += arch/mips/f 212 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
267 libs-y += arch/mips/f 213 libs-y += arch/mips/fw/lib/
268 214
269 # 215 #
270 # Kernel compression 216 # Kernel compression
271 # 217 #
272 ifdef CONFIG_SYS_SUPPORTS_ZBOOT !! 218 ifdef SYS_SUPPORTS_ZBOOT
273 COMPRESSION_FNAME = vmlinuz 219 COMPRESSION_FNAME = vmlinuz
274 else 220 else
275 COMPRESSION_FNAME = vmlinux 221 COMPRESSION_FNAME = vmlinux
276 endif 222 endif
277 223
278 # 224 #
279 # Board-dependent options and extra files 225 # Board-dependent options and extra files
280 # 226 #
281 include $(srctree)/arch/mips/Kbuild.platforms !! 227 include arch/mips/Kbuild.platforms
282 228
283 ifdef CONFIG_PHYSICAL_START 229 ifdef CONFIG_PHYSICAL_START
284 load-y = $(CO 230 load-y = $(CONFIG_PHYSICAL_START)
285 endif 231 endif
>> 232 entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
>> 233 | grep "\bkernel_entry\b" | cut -f1 -d \ )
286 234
287 entry-y = $(shell $(ob <<
288 cflags-y += -I$(srctree 235 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
289 drivers-$(CONFIG_PCI) += arch/mips/p 236 drivers-$(CONFIG_PCI) += arch/mips/pci/
290 237
291 # 238 #
292 # Automatically detect the build format. By de 239 # Automatically detect the build format. By default we choose
293 # the elf format according to the load address 240 # the elf format according to the load address.
294 # We can always force a build with a 64-bits s 241 # We can always force a build with a 64-bits symbol format by
295 # passing 'KBUILD_SYM32=no' option to the make 242 # passing 'KBUILD_SYM32=no' option to the make's command line.
296 # 243 #
297 ifdef CONFIG_64BIT 244 ifdef CONFIG_64BIT
298 ifndef KBUILD_SYM32 245 ifndef KBUILD_SYM32
299 ifeq ($(shell expr $(load-y) \< 0xffffffff 246 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
300 KBUILD_SYM32 = $(call cc-option-yn, -msy !! 247 KBUILD_SYM32 = y
301 endif 248 endif
302 endif 249 endif
303 250
304 ifeq ($(KBUILD_SYM32), y) !! 251 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
305 cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD !! 252 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
306 else 253 else
307 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 254 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
308 $(error CONFIG_CPU_DADDI_WORKAROUNDS uns 255 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
309 endif 256 endif
310 endif 257 endif
311 endif 258 endif
312 259
313 # When linking a 32-bit executable the LLVM li <<
314 # 32-bit load address that has been sign-exten <<
315 # remove the upper 32 bits then, as it is safe <<
316 # linkers. <<
317 ifdef CONFIG_64BIT <<
318 load-ld = $(load-y) <<
319 else <<
320 load-ld = $(subst 0xff <<
321 endif <<
322 <<
323 KBUILD_AFLAGS += $(cflags-y) 260 KBUILD_AFLAGS += $(cflags-y)
324 KBUILD_CFLAGS += $(cflags-y) 261 KBUILD_CFLAGS += $(cflags-y)
325 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo !! 262 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
326 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoff 263 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
327 264
328 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load- 265 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
329 LINKER_LOAD_ADDRESS=$(load-l !! 266 VMLINUX_ENTRY_ADDRESS=$(entry-y)
330 VMLINUX_ENTRY_ADDRESS=$(entr <<
331 PLATFORM="$(platform-y)" \ <<
332 ITS_INPUTS="$(its-y)" <<
333 ifdef CONFIG_32BIT <<
334 bootvars-y += ADDR_BITS=32 <<
335 endif <<
336 ifdef CONFIG_64BIT <<
337 bootvars-y += ADDR_BITS=64 <<
338 endif <<
339 <<
340 # This is required to get dwarf unwinding tabl <<
341 # instead of .eh_frame so we don't discard the <<
342 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
343 267
344 KBUILD_LDFLAGS += -m $(ld-emul) !! 268 LDFLAGS += -m $(ld-emul)
345 269
346 ifdef need-compiler !! 270 ifdef CONFIG_MIPS
347 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 271 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
348 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL !! 272 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
349 sed -e "s/^\#define /-D'/" -e "s/ /'=' 273 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
>> 274 ifdef CONFIG_64BIT
>> 275 CHECKFLAGS += -m64
>> 276 endif
350 endif 277 endif
351 278
352 OBJCOPYFLAGS += --remove-section=.r 279 OBJCOPYFLAGS += --remove-section=.reginfo
353 280
>> 281 head-y := arch/mips/kernel/head.o
>> 282
354 libs-y += arch/mips/lib/ 283 libs-y += arch/mips/lib/
355 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/ma !! 284 libs-y += arch/mips/math-emu/
356 285
357 drivers-y += arch/mips/c !! 286 # See arch/mips/Kbuild for content of core part of the kernel
>> 287 core-y += arch/mips/
>> 288
>> 289 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
358 290
359 # suspend and hibernation support 291 # suspend and hibernation support
360 drivers-$(CONFIG_PM) += arch/mips/power/ 292 drivers-$(CONFIG_PM) += arch/mips/power/
361 293
362 # boot image targets (arch/mips/boot/) 294 # boot image targets (arch/mips/boot/)
363 boot-y := vmlinux.bin 295 boot-y := vmlinux.bin
364 boot-y += vmlinux.ecoff 296 boot-y += vmlinux.ecoff
365 boot-y += vmlinux.srec 297 boot-y += vmlinux.srec
>> 298 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
366 boot-y += uImage 299 boot-y += uImage
367 boot-y += uImage.bin 300 boot-y += uImage.bin
368 boot-y += uImage.bz2 301 boot-y += uImage.bz2
369 boot-y += uImage.gz 302 boot-y += uImage.gz
370 boot-y += uImage.lzma 303 boot-y += uImage.lzma
371 boot-y += uImage.lzo 304 boot-y += uImage.lzo
372 boot-y += vmlinux.itb !! 305 endif
373 boot-y += vmlinux.gz.itb <<
374 boot-y += vmlinux.bz2.itb <<
375 boot-y += vmlinux.lzma.itb <<
376 boot-y += vmlinux.lzo.itb <<
377 306
378 # compressed boot image targets (arch/mips/boo 307 # compressed boot image targets (arch/mips/boot/compressed/)
379 bootz-y := vmlinuz 308 bootz-y := vmlinuz
380 bootz-y += vmlinuz.bin 309 bootz-y += vmlinuz.bin
381 bootz-y += vmlinuz.ecoff 310 bootz-y += vmlinuz.ecoff
382 bootz-y += vmlinuz.srec 311 bootz-y += vmlinuz.srec
383 bootz-y += uzImage.bin !! 312
384 bootz-y += vmlinuz.itb !! 313 ifdef CONFIG_LASAT
>> 314 rom.bin rom.sw: vmlinux
>> 315 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
>> 316 $(bootvars-y) $@
>> 317 endif
385 318
386 # 319 #
387 # Some machines like the Indy need 32-bit ELF 320 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
388 # Other need ECOFF, so we build a 32-bit ELF b 321 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
389 # convert to ECOFF using elf2ecoff. 322 # convert to ECOFF using elf2ecoff.
390 # 323 #
391 quiet_cmd_32 = OBJCOPY $@ 324 quiet_cmd_32 = OBJCOPY $@
392 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $( 325 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
393 vmlinux.32: vmlinux 326 vmlinux.32: vmlinux
394 $(call cmd,32) 327 $(call cmd,32)
395 328
396 # 329 #
397 # The 64-bit ELF tools are pretty broken so at 330 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
398 # ELF files from 32-bit files by conversion. 331 # ELF files from 32-bit files by conversion.
399 # 332 #
400 quiet_cmd_64 = OBJCOPY $@ 333 quiet_cmd_64 = OBJCOPY $@
401 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $( 334 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
402 vmlinux.64: vmlinux 335 vmlinux.64: vmlinux
403 $(call cmd,64) 336 $(call cmd,64)
404 337
405 all: $(all-y) $(KBUILD_DTBS) !! 338 all: $(all-y)
406 339
407 # boot 340 # boot
408 $(boot-y): $(vmlinux-32) FORCE 341 $(boot-y): $(vmlinux-32) FORCE
409 $(Q)$(MAKE) $(build)=arch/mips/boot VM 342 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
410 $(bootvars-y) arch/mips/boot/$ 343 $(bootvars-y) arch/mips/boot/$@
411 344
412 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 345 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
413 # boot/compressed 346 # boot/compressed
414 $(bootz-y): $(vmlinux-32) FORCE 347 $(bootz-y): $(vmlinux-32) FORCE
415 $(Q)$(MAKE) $(build)=arch/mips/boot/co 348 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
416 $(bootvars-y) 32bit-bfd=$(32bi !! 349 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
417 else 350 else
418 vmlinuz: FORCE 351 vmlinuz: FORCE
419 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is 352 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
420 /bin/false 353 /bin/false
421 endif 354 endif
422 355
423 356
424 CLEAN_FILES += vmlinux.32 vmlinux.64 357 CLEAN_FILES += vmlinux.32 vmlinux.64
425 358
426 # device-trees 359 # device-trees
427 core-y += arch/mips/boot/dts/ !! 360 core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
>> 361
>> 362 %.dtb %.dtb.S %.dtb.o: | scripts
>> 363 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
>> 364
>> 365 PHONY += dtbs
>> 366 dtbs: scripts
>> 367 $(Q)$(MAKE) $(build)=arch/mips/boot/dts
>> 368
>> 369 PHONY += dtbs_install
>> 370 dtbs_install:
>> 371 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
428 372
429 archprepare: 373 archprepare:
430 ifdef CONFIG_MIPS32_N32 374 ifdef CONFIG_MIPS32_N32
431 @$(kecho) ' Checking missing-syscalls !! 375 @echo ' Checking missing-syscalls for N32'
432 $(Q)$(MAKE) $(build)=. missing-syscall 376 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
433 endif 377 endif
434 ifdef CONFIG_MIPS32_O32 378 ifdef CONFIG_MIPS32_O32
435 @$(kecho) ' Checking missing-syscalls !! 379 @echo ' Checking missing-syscalls for O32'
436 $(Q)$(MAKE) $(build)=. missing-syscall 380 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
437 endif 381 endif
438 382
439 install: 383 install:
440 $(Q)install -D -m 755 vmlinux $(INSTAL 384 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
441 ifdef CONFIG_SYS_SUPPORTS_ZBOOT 385 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
442 $(Q)install -D -m 755 vmlinuz $(INSTAL 386 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
443 endif 387 endif
444 $(Q)install -D -m 644 .config $(INSTAL 388 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
445 $(Q)install -D -m 644 System.map $(INS 389 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
446 390
447 archheaders: !! 391 archclean:
448 $(Q)$(MAKE) $(build)=arch/mips/kernel/ !! 392 $(Q)$(MAKE) $(clean)=arch/mips/boot
>> 393 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
>> 394 $(Q)$(MAKE) $(clean)=arch/mips/lasat
449 395
450 define archhelp 396 define archhelp
451 echo ' install - install 397 echo ' install - install kernel into $(INSTALL_PATH)'
452 echo ' vmlinux.ecoff - ECOFF b 398 echo ' vmlinux.ecoff - ECOFF boot image'
453 echo ' vmlinux.bin - Raw bin 399 echo ' vmlinux.bin - Raw binary boot image'
454 echo ' vmlinux.srec - SREC bo 400 echo ' vmlinux.srec - SREC boot image'
455 echo ' vmlinux.32 - 64-bit 401 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
456 echo ' vmlinuz - Compres 402 echo ' vmlinuz - Compressed boot(zboot) image'
457 echo ' vmlinuz.ecoff - ECOFF z 403 echo ' vmlinuz.ecoff - ECOFF zboot image'
458 echo ' vmlinuz.bin - Raw bin 404 echo ' vmlinuz.bin - Raw binary zboot image'
459 echo ' vmlinuz.srec - SREC zb 405 echo ' vmlinuz.srec - SREC zboot image'
460 echo ' uImage - U-Boot 406 echo ' uImage - U-Boot image'
461 echo ' uImage.bin - U-Boot 407 echo ' uImage.bin - U-Boot image (uncompressed)'
462 echo ' uImage.bz2 - U-Boot 408 echo ' uImage.bz2 - U-Boot image (bz2)'
463 echo ' uImage.gz - U-Boot 409 echo ' uImage.gz - U-Boot image (gzip)'
464 echo ' uImage.lzma - U-Boot 410 echo ' uImage.lzma - U-Boot image (lzma)'
465 echo ' uImage.lzo - U-Boot 411 echo ' uImage.lzo - U-Boot image (lzo)'
466 echo ' uzImage.bin - U-Boot !! 412 echo ' dtbs - Device-tree blobs for enabled boards'
>> 413 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
467 echo 414 echo
468 echo ' These will be default as appro 415 echo ' These will be default as appropriate for a configured platform.'
469 echo <<
470 echo ' If you are targeting a system <<
471 echo ' configure the kernel for a giv <<
472 echo <<
473 echo ' {micro32,32,64}{r1,r2,r6}{el,} <<
474 echo <<
475 echo ' Where BOARDS is some subset of <<
476 for board in $(sort $(BOARDS)); do ech <<
477 echo <<
478 echo ' Specifically the following gen <<
479 echo ' supported:' <<
480 echo <<
481 $(foreach cfg,$(generic_defconfigs), <<
482 printf " %-24s - Build generic kern <<
483 echo <<
484 echo ' The following legacy default c <<
485 echo ' generic and can still be used: <<
486 echo <<
487 $(foreach cfg,$(sort $(legacy_defconfi <<
488 printf " %-24s - Build $($(cfg)-y)\ <<
489 echo <<
490 echo ' Otherwise, the following defau <<
491 endef <<
492 <<
493 generic_config_dir = $(srctree)/arch/$(ARCH)/c <<
494 generic_defconfigs := <<
495 <<
496 # <<
497 # If the user generates a generic kernel confi <<
498 # list of boards to include the config fragmen <<
499 # available board config fragments. <<
500 # <<
501 ifeq ($(BOARDS),) <<
502 BOARDS = $(patsubst board-%.config,%,$(notdir <<
503 endif <<
504 <<
505 # <<
506 # Generic kernel configurations which merge ge <<
507 # appropriate config fragments from arch/mips/ <<
508 # the ability to easily configure the kernel f <<
509 # endianness & set of boards without duplicati <<
510 # hundreds of defconfig files. <<
511 # <<
512 define gen_generic_defconfigs <<
513 $(foreach bits,$(1),$(foreach rev,$(2),$(forea <<
514 target := $(bits)$(rev)$(filter el,$(endian))_ <<
515 generic_defconfigs += $$(target) <<
516 $$(target): $(generic_config_dir)/$(bits)$(rev <<
517 $$(target): $(generic_config_dir)/$(endian).co <<
518 ))) <<
519 endef 416 endef
520 <<
521 $(eval $(call gen_generic_defconfigs,32 64,r1 <<
522 $(eval $(call gen_generic_defconfigs,micro32,r <<
523 <<
524 define describe_generic_defconfig <<
525 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(su <<
526 endef <<
527 <<
528 .PHONY: $(generic_defconfigs) <<
529 $(generic_defconfigs): <<
530 $(Q)$(CONFIG_SHELL) $(srctree)/scripts <<
531 -m -O $(objtree) $(srctree)/ar <<
532 grep -Ev '^#' <<
533 $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.c <<
534 $(Q)$(MAKE) -f $(srctree)/Makefile old <<
535 KCONFIG_CONFIG=$(objtree)/.con <<
536 $(Q)$(CONFIG_SHELL) $(srctree)/arch/$( <<
537 $(srctree) $(objtree) $(objtre <<
538 "$(origin BOARDS)" $(BOARDS) <<
539 $(Q)$(MAKE) -f $(srctree)/Makefile old <<
540 <<
541 # <<
542 # Prevent generic merge_config rules attemptin <<
543 # <<
544 $(generic_config_dir)/%.config: ; <<
545 <<
546 # <<
547 # Prevent direct use of generic_defconfig, whi <<
548 # basis of the various ISA-specific targets ge <<
549 # <<
550 .PHONY: generic_defconfig <<
551 generic_defconfig: <<
552 $(Q)echo "generic_defconfig is not int <<
553 $(Q)echo "used via an ISA-specific tar <<
554 $(Q)echo <<
555 $(Q)for cfg in $(generic_defconfigs); <<
556 $(Q)echo <<
557 $(Q)false <<
558 <<
559 # <<
560 # Legacy defconfig compatibility - these targe <<
561 # now that the boards have been converted to u <<
562 # wrappers around the generic rules above. <<
563 # <<
564 legacy_defconfigs += ocelot_defc <<
565 ocelot_defconfig-y := 32r2el_defc <<
566 <<
567 legacy_defconfigs += sead3_defco <<
568 sead3_defconfig-y := 32r2el_defc <<
569 <<
570 legacy_defconfigs += sead3micro_ <<
571 sead3micro_defconfig-y := micro32r2el <<
572 <<
573 legacy_defconfigs += xilfpga_def <<
574 xilfpga_defconfig-y := 32r2el_defc <<
575 <<
576 legacy_defconfigs += pistachio_d <<
577 pistachio_defconfig-y := 32r2el_defc <<
578 <<
579 .PHONY: $(legacy_defconfigs) <<
580 $(legacy_defconfigs): <<
581 $(Q)$(MAKE) -f $(srctree)/Makefile $($ <<
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