1 # This file is included by the global makefile <<
2 # architecture-specific flags and dependencies <<
3 # 1 #
4 # This file is subject to the terms and condit 2 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main 3 # License. See the file "COPYING" in the main directory of this archive
6 # for more details. 4 # for more details.
7 # 5 #
8 # Copyright (C) 1994 by Linus Torvalds !! 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
9 # Changes for PPC by Gary Thomas !! 7 # DECStation modifications by Paul M. Antoine, 1996
10 # Rewritten by Cort Dougan and Paul Mackerras !! 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.
11 # 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
12 35
13 ifdef cross_compiling !! 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),$(ARCH))
14 ifeq ($(CROSS_COMPILE),) 46 ifeq ($(CROSS_COMPILE),)
15 # Auto detect cross compiler prefix. !! 47 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
16 # Look for: (powerpc(64(le)?)?)(-unknown)? <<
17 CC_ARCHES := powerpc powerpc64 powerpc64le <<
18 CC_SUFFIXES := linux linux-gnu unknown-lin <<
19 CROSS_COMPILE := $(call cc-cross-prefix, $ <<
20 $(foreach s,$(CC_SUFFIX <<
21 endif 48 endif
22 endif 49 endif
23 50
24 HAS_BIARCH := $(call cc-option-yn, -m32) !! 51 ifdef CONFIG_FUNCTION_GRAPH_TRACER
>> 52 ifndef KBUILD_MCOUNT_RA_ADDRESS
>> 53 ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
>> 54 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
>> 55 endif
>> 56 endif
>> 57 endif
>> 58 cflags-y += $(call cc-option, -mno-check-zero-division)
25 59
26 # Set default 32 bits cross compilers for vdso !! 60 ifdef CONFIG_32BIT
27 CROSS32_COMPILE ?= !! 61 ld-emul = $(32bit-emul)
>> 62 vmlinux-32 = vmlinux
>> 63 vmlinux-64 = vmlinux.64
28 64
29 # If we're on a ppc/ppc64/ppc64le machine use !! 65 cflags-y += -mabi=32
30 # ppc64le_defconfig because we have nothing be !! 66 endif
31 uname := $(shell uname -m) <<
32 KBUILD_DEFCONFIG := $(if $(filter ppc%,$(uname <<
33 67
34 new_nm := $(shell if $(NM) --help 2>&1 | grep !! 68 ifdef CONFIG_64BIT
>> 69 ld-emul = $(64bit-emul)
>> 70 vmlinux-32 = vmlinux.32
>> 71 vmlinux-64 = vmlinux
35 72
36 ifeq ($(new_nm),y) !! 73 cflags-y += -mabi=64
37 NM := $(NM) --synthetic <<
38 endif 74 endif
39 75
40 # BITS is used as extension for files which ar !! 76 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
41 # and a 64 bit version to simplify shared Make !! 77 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
42 # e.g.: obj-y += foo_$(BITS).o !! 78 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
43 export BITS <<
44 79
45 ifdef CONFIG_PPC64 !! 80 #
46 BITS := 64 !! 81 # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
47 else !! 82 # code since it only slows down the whole thing. At some point we might make
48 BITS := 32 !! 83 # use of global pointer optimizations but their use of $28 conflicts with
49 endif !! 84 # the current pointer optimization.
>> 85 #
>> 86 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
>> 87 # machines may also. Since BFD is incredibly buggy with respect to
>> 88 # crossformat linking we rely on the elf2ecoff tool for format conversion.
>> 89 #
>> 90 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
>> 91 cflags-y += -msoft-float
>> 92 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
>> 93 KBUILD_AFLAGS_MODULE += -mlong-calls
>> 94 KBUILD_CFLAGS_MODULE += -mlong-calls
50 95
51 machine-y = ppc !! 96 #
52 machine-$(CONFIG_PPC64) += 64 !! 97 # pass -msoft-float to GAS if it supports it. However on newer binutils
53 machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le !! 98 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
54 UTS_MACHINE := $(subst $(space),,$(machine-y)) !! 99 # set ".set hardfloat" in all files which manipulate floating point registers.
55 !! 100 #
56 ifeq ($(CONFIG_PPC64)$(CONFIG_LD_IS_BFD),yy) !! 101 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
57 # Have the linker provide sfpr if possible. !! 102 cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
58 # There is a corresponding test in arch/powerp <<
59 KBUILD_LDFLAGS_MODULE += --save-restore-funcs <<
60 else <<
61 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crts <<
62 endif 103 endif
63 104
64 ifdef CONFIG_CPU_LITTLE_ENDIAN !! 105 cflags-y += -ffreestanding
65 KBUILD_CFLAGS += -mlittle-endian <<
66 KBUILD_LDFLAGS += -EL <<
67 LDEMULATION := lppc <<
68 GNUTARGET := powerpcle <<
69 MULTIPLEWORD := -mno-multiple <<
70 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno- <<
71 else <<
72 KBUILD_CFLAGS += $(call cc-option,-mbig-endian <<
73 KBUILD_LDFLAGS += -EB <<
74 LDEMULATION := ppc <<
75 GNUTARGET := powerpc <<
76 MULTIPLEWORD := -mmultiple <<
77 endif <<
78 106
79 ifdef CONFIG_PPC64 !! 107 #
80 ifndef CONFIG_CC_IS_CLANG !! 108 # We explicitly add the endianness specifier if needed, this allows
81 cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c !! 109 # to compile kernels with a toolchain for the other endianness. We
82 cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c !! 110 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
83 aflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(c !! 111 # when fed the toolchain default!
84 aflags-$(CONFIG_PPC64_ELF_ABI_V2) += -ma !! 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) $(predef-le))
>> 124
>> 125 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
>> 126 -fno-omit-frame-pointer
>> 127 #
>> 128 # CPU-dependent compiler/assembler options for optimization.
>> 129 #
>> 130 cflags-$(CONFIG_CPU_R3000) += -march=r3000
>> 131 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
>> 132 cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
>> 133 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
>> 134 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
>> 135 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
>> 136 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
>> 137 cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
>> 138 -Wa,-mips32 -Wa,--trap
>> 139 cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
>> 140 -Wa,-mips32r2 -Wa,--trap
>> 141 cflags-$(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) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 145 -Wa,-mips64r2 -Wa,--trap
>> 146 cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
>> 147 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
>> 148 cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
>> 149 -Wa,--trap
>> 150 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
>> 151 -Wa,--trap
>> 152 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
>> 153 -Wa,--trap
>> 154 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
>> 155 -Wa,--trap
>> 156 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
>> 157 -Wa,--trap
>> 158 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
>> 159 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
>> 160 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
>> 161 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
>> 162 -Wa,--trap
>> 163 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 164 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 165 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
85 endif 166 endif
>> 167 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
>> 168 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
>> 169 #
>> 170 # binutils from v2.25 on and gcc starting from v4.9.0 treat -march=loongson3a
>> 171 # as MIPS64 R1; older versions as just R1. This leaves the possibility open
>> 172 # that GCC might generate R2 code for -march=loongson3a which then is rejected
>> 173 # by GAS. The cc-option can't probe for this behaviour so -march=loongson3a
>> 174 # can't easily be used safely within the kbuild framework.
>> 175 #
>> 176 cflags-$(CONFIG_CPU_LOONGSON3) += \
>> 177 $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 178 -Wa,-mips64r2 -Wa,--trap
>> 179
>> 180 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
>> 181 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
>> 182 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
>> 183
>> 184 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
>> 185 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
>> 186 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
>> 187 # similar directives in the kernel will spam the build logs with the following warnings:
>> 188 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
>> 189 # or
>> 190 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
>> 191 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
>> 192 # been fixed properly.
>> 193 mips-cflags := $(cflags-y)
>> 194 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
>> 195 smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
>> 196 cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
>> 197 endif
>> 198 ifeq ($(CONFIG_CPU_MICROMIPS),y)
>> 199 micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
>> 200 cflags-$(micromips-ase) += -mmicromips
>> 201 endif
>> 202 ifeq ($(CONFIG_CPU_HAS_MSA),y)
>> 203 toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
>> 204 cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
86 endif 205 endif
87 206
88 ifndef CONFIG_CC_IS_CLANG !! 207 #
89 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mn !! 208 # Firmware support
>> 209 #
>> 210 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
>> 211 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
>> 212 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
>> 213 libs-y += arch/mips/fw/lib/
>> 214
>> 215 #
>> 216 # Kernel compression
>> 217 #
>> 218 ifdef SYS_SUPPORTS_ZBOOT
>> 219 COMPRESSION_FNAME = vmlinuz
>> 220 else
>> 221 COMPRESSION_FNAME = vmlinux
90 endif 222 endif
91 223
92 cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(c !! 224 #
93 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml !! 225 # Board-dependent options and extra files
94 aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(c !! 226 #
95 aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml !! 227 include arch/mips/Kbuild.platforms
96 228
97 ifeq ($(HAS_BIARCH),y) !! 229 ifdef CONFIG_PHYSICAL_START
98 KBUILD_CFLAGS += -m$(BITS) !! 230 load-y = $(CONFIG_PHYSICAL_START)
99 KBUILD_AFLAGS += -m$(BITS) <<
100 KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION) <<
101 endif 231 endif
>> 232 entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
>> 233 | grep "\bkernel_entry\b" | cut -f1 -d \ )
102 234
103 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro !! 235 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
104 ifdef CONFIG_PPC64 !! 236 drivers-$(CONFIG_PCI) += arch/mips/pci/
105 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro <<
106 else <<
107 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro <<
108 endif <<
109 237
110 LDFLAGS_vmlinux-y := -Bstatic !! 238 #
111 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie !! 239 # Automatically detect the build format. By default we choose
112 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) += -z no !! 240 # the elf format according to the load address.
113 LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) !! 241 # We can always force a build with a 64-bits symbol format by
114 !! 242 # passing 'KBUILD_SYM32=no' option to the make's command line.
115 ifdef CONFIG_PPC64 !! 243 #
116 ifndef CONFIG_PPC_KERNEL_PCREL !! 244 ifdef CONFIG_64BIT
117 # -mcmodel=medium breaks modules becau !! 245 ifndef KBUILD_SYM32
118 # the TOC pointer to create pointers w !! 246 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
119 # percpu data area are created by this !! 247 KBUILD_SYM32 = y
120 # !! 248 endif
121 # The kernel module loader relocates t !! 249 endif
122 # original location (starting with 0xd <<
123 # kernel percpu data space (starting w <<
124 # 64bit relocation for this to work, h <<
125 KBUILD_CFLAGS_MODULE += -mcmodel=large <<
126 endif <<
127 endif <<
128 250
129 CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-m !! 251 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
130 ifdef CONFIG_PPC64_ELF_ABI_V2 !! 252 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
131 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m !! 253 else
132 else !! 254 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
133 ifndef CONFIG_CC_IS_CLANG !! 255 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
134 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m !! 256 endif
135 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m !! 257 endif
136 endif <<
137 endif 258 endif
138 CFLAGS-$(CONFIG_PPC64) += -mcmodel=medium <<
139 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
140 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-m <<
141 <<
142 # Clang unconditionally reserves r2 on ppc32 a <<
143 # https://llvm.org/pr39555 <<
144 CFLAGS-$(CONFIG_PPC32) := $(call cc-option, - <<
145 259
146 # Clang doesn't support -mmultiple / -mno-mult !! 260 KBUILD_AFLAGS += $(cflags-y)
147 # https://llvm.org/pr39556 !! 261 KBUILD_CFLAGS += $(cflags-y)
148 CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $ !! 262 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
>> 263 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
149 264
150 CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-m !! 265 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
>> 266 VMLINUX_ENTRY_ADDRESS=$(entry-y)
151 267
152 CC_FLAGS_FPU := $(call cc-option,-m !! 268 LDFLAGS += -m $(ld-emul)
153 CC_FLAGS_NO_FPU := $(call cc-option,-m <<
154 269
155 ifdef CONFIG_FUNCTION_TRACER !! 270 ifdef CONFIG_MIPS
156 ifdef CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENT !! 271 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
157 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI !! 272 egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
158 CC_FLAGS_FTRACE := -fpatchable-function-entry= !! 273 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
159 else !! 274 ifdef CONFIG_64BIT
160 CC_FLAGS_FTRACE := -pg !! 275 CHECKFLAGS += -m64
161 ifdef CONFIG_MPROFILE_KERNEL <<
162 CC_FLAGS_FTRACE += -mprofile-kernel <<
163 endif <<
164 endif 276 endif
165 endif 277 endif
166 278
167 CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO !! 279 OBJCOPYFLAGS += --remove-section=.reginfo
168 AFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO <<
169 280
170 CFLAGS-y += $(CONFIG_TUNE_CPU) !! 281 head-y := arch/mips/kernel/head.o
171 282
172 asinstr := $(call as-instr,lis 9$(comma)foo@hi !! 283 libs-y += arch/mips/lib/
>> 284 libs-y += arch/mips/math-emu/
173 285
174 KBUILD_CPPFLAGS += -I $(srctree)/arch/powerpc !! 286 # See arch/mips/Kbuild for content of core part of the kernel
175 KBUILD_AFLAGS += $(AFLAGS-y) !! 287 core-y += arch/mips/
176 KBUILD_CFLAGS += $(CC_FLAGS_NO_FPU) <<
177 KBUILD_CFLAGS += $(CFLAGS-y) <<
178 CPP = $(CC) -E $(KBUILD_CFLAGS) <<
179 288
180 CHECKFLAGS += -m$(BITS) -D__powerpc__ -D_ !! 289 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
181 ifdef CONFIG_CPU_BIG_ENDIAN <<
182 CHECKFLAGS += -D__BIG_ENDIAN__ <<
183 else <<
184 CHECKFLAGS += -D__LITTLE_ENDIAN__ <<
185 endif <<
186 290
187 ifdef CONFIG_476FPE_ERR46 !! 291 # suspend and hibernation support
188 KBUILD_LDFLAGS_MODULE += --ppc476-work !! 292 drivers-$(CONFIG_PM) += arch/mips/power/
189 -T $(srctree)/arch/powerpc/pla !! 293
>> 294 # boot image targets (arch/mips/boot/)
>> 295 boot-y := vmlinux.bin
>> 296 boot-y += vmlinux.ecoff
>> 297 boot-y += vmlinux.srec
>> 298 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
>> 299 boot-y += uImage
>> 300 boot-y += uImage.bin
>> 301 boot-y += uImage.bz2
>> 302 boot-y += uImage.gz
>> 303 boot-y += uImage.lzma
>> 304 boot-y += uImage.lzo
190 endif 305 endif
191 306
192 # No prefix or pcrel !! 307 # compressed boot image targets (arch/mips/boot/compressed/)
193 ifdef CONFIG_PPC_KERNEL_PREFIXED !! 308 bootz-y := vmlinuz
194 KBUILD_CFLAGS += $(call cc-option,-mprefixed) !! 309 bootz-y += vmlinuz.bin
195 else !! 310 bootz-y += vmlinuz.ecoff
196 KBUILD_CFLAGS += $(call cc-option,-mno-prefixe !! 311 bootz-y += vmlinuz.srec
>> 312
>> 313 ifdef CONFIG_LASAT
>> 314 rom.bin rom.sw: vmlinux
>> 315 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
>> 316 $(bootvars-y) $@
197 endif 317 endif
198 ifdef CONFIG_PPC_KERNEL_PCREL !! 318
199 KBUILD_CFLAGS += $(call cc-option,-mpcrel) !! 319 #
>> 320 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
>> 321 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
>> 322 # convert to ECOFF using elf2ecoff.
>> 323 #
>> 324 quiet_cmd_32 = OBJCOPY $@
>> 325 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 326 vmlinux.32: vmlinux
>> 327 $(call cmd,32)
>> 328
>> 329 #
>> 330 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
>> 331 # ELF files from 32-bit files by conversion.
>> 332 #
>> 333 quiet_cmd_64 = OBJCOPY $@
>> 334 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 335 vmlinux.64: vmlinux
>> 336 $(call cmd,64)
>> 337
>> 338 all: $(all-y)
>> 339
>> 340 # boot
>> 341 $(boot-y): $(vmlinux-32) FORCE
>> 342 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
>> 343 $(bootvars-y) arch/mips/boot/$@
>> 344
>> 345 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 346 # boot/compressed
>> 347 $(bootz-y): $(vmlinux-32) FORCE
>> 348 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
>> 349 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
200 else 350 else
201 KBUILD_CFLAGS += $(call cc-option,-mno-pcrel) !! 351 vmlinuz: FORCE
>> 352 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
>> 353 /bin/false
202 endif 354 endif
203 355
204 # No AltiVec or VSX or MMA instructions when b <<
205 KBUILD_CFLAGS += $(call cc-option,-mno-altivec <<
206 KBUILD_CFLAGS += $(call cc-option,-mno-vsx) <<
207 KBUILD_CFLAGS += $(call cc-option,-mno-mma) <<
208 <<
209 # No SPE instruction when building kernel <<
210 # (We use all available options to help semi-b <<
211 KBUILD_CFLAGS += $(call cc-option,-mno-spe) <<
212 KBUILD_CFLAGS += $(call cc-option,-mspe=no) <<
213 <<
214 # Don't emit .eh_frame since we have no use fo <<
215 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl <<
216 <<
217 # Never use string load/store instructions as <<
218 # often slow when they are implemented at all <<
219 KBUILD_CFLAGS += $(call cc-option,-m <<
220 <<
221 KBUILD_AFLAGS += $(aflags-y) <<
222 KBUILD_CFLAGS += $(cflags-y) <<
223 <<
224 # Default to zImage, override when needed <<
225 all: zImage <<
226 <<
227 # With make 3.82 we cannot mix normal and wild <<
228 BOOT_TARGETS1 := zImage zImage.initrd uImage <<
229 BOOT_TARGETS2 := zImage% dtbImage% treeImage.% <<
230 <<
231 PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) <<
232 <<
233 boot := arch/powerpc/boot <<
234 <<
235 $(BOOT_TARGETS1): vmlinux <<
236 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
237 $(BOOT_TARGETS2): vmlinux <<
238 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
239 <<
240 <<
241 PHONY += bootwrapper_install <<
242 bootwrapper_install: <<
243 $(Q)$(MAKE) $(build)=$(boot) $(patsubs <<
244 <<
245 include $(srctree)/scripts/Makefile.defconf <<
246 <<
247 generated_configs += ppc64le_defconfig <<
248 ppc64le_defconfig: <<
249 $(call merge_into_defconfig,ppc64_defc <<
250 <<
251 generated_configs += ppc64le_guest_defconfig <<
252 ppc64le_guest_defconfig: <<
253 $(call merge_into_defconfig,ppc64_defc <<
254 <<
255 generated_configs += ppc64_guest_defconfig <<
256 ppc64_guest_defconfig: <<
257 $(call merge_into_defconfig,ppc64_defc <<
258 <<
259 generated_configs += pseries_le_defconfig <<
260 pseries_le_defconfig: ppc64le_guest_defconfig <<
261 <<
262 generated_configs += pseries_defconfig <<
263 pseries_defconfig: ppc64le_guest_defconfig <<
264 <<
265 generated_configs += powernv_be_defconfig <<
266 powernv_be_defconfig: <<
267 $(call merge_into_defconfig,powernv_de <<
268 <<
269 generated_configs += mpc85xx_defconfig <<
270 mpc85xx_defconfig: <<
271 $(call merge_into_defconfig,mpc85xx_ba <<
272 85xx-32bit 85xx-hw fsl-emb-non <<
273 <<
274 generated_configs += mpc85xx_smp_defconfig <<
275 mpc85xx_smp_defconfig: <<
276 $(call merge_into_defconfig,mpc85xx_ba <<
277 85xx-32bit 85xx-smp 85xx-hw fs <<
278 <<
279 generated_configs += corenet32_smp_defconfig <<
280 corenet32_smp_defconfig: <<
281 $(call merge_into_defconfig,corenet_ba <<
282 85xx-32bit 85xx-smp 85xx-hw fs <<
283 <<
284 generated_configs += corenet64_smp_defconfig <<
285 corenet64_smp_defconfig: <<
286 $(call merge_into_defconfig,corenet_ba <<
287 85xx-64bit 85xx-smp altivec 85 <<
288 <<
289 generated_configs += mpc86xx_defconfig <<
290 mpc86xx_defconfig: <<
291 $(call merge_into_defconfig,mpc86xx_ba <<
292 86xx-hw fsl-emb-nonhw) <<
293 <<
294 generated_configs += mpc86xx_smp_defconfig <<
295 mpc86xx_smp_defconfig: <<
296 $(call merge_into_defconfig,mpc86xx_ba <<
297 86xx-smp 86xx-hw fsl-emb-nonhw <<
298 <<
299 generated_configs += ppc32_allmodconfig <<
300 ppc32_allmodconfig: <<
301 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
302 -f $(srctree)/Makefile allmodc <<
303 <<
304 generated_configs += ppc44x_allmodconfig <<
305 ppc44x_allmodconfig: <<
306 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
307 -f $(srctree)/Makefile allmodc <<
308 <<
309 generated_configs += ppc8xx_allmodconfig <<
310 ppc8xx_allmodconfig: <<
311 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
312 -f $(srctree)/Makefile allmodc <<
313 <<
314 generated_configs += ppc85xx_allmodconfig <<
315 ppc85xx_allmodconfig: <<
316 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
317 -f $(srctree)/Makefile allmodc <<
318 <<
319 generated_configs += ppc_defconfig <<
320 ppc_defconfig: <<
321 $(call merge_into_defconfig,book3s_32. <<
322 <<
323 generated_configs += ppc64le_allmodconfig <<
324 ppc64le_allmodconfig: <<
325 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
326 -f $(srctree)/Makefile allmodc <<
327 <<
328 generated_configs += ppc64le_allnoconfig <<
329 ppc64le_allnoconfig: <<
330 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
331 -f $(srctree)/Makefile allnoco <<
332 <<
333 generated_configs += ppc64_book3e_allmodconfig <<
334 ppc64_book3e_allmodconfig: <<
335 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
336 -f $(srctree)/Makefile allmodc <<
337 <<
338 generated_configs += ppc32_randconfig <<
339 ppc32_randconfig: <<
340 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
341 -f $(srctree)/Makefile randcon <<
342 <<
343 generated_configs += ppc64_randconfig <<
344 ppc64_randconfig: <<
345 $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre <<
346 -f $(srctree)/Makefile randcon <<
347 356
348 PHONY += $(generated_configs) !! 357 CLEAN_FILES += vmlinux.32 vmlinux.64
349 358
350 define archhelp !! 359 # device-trees
351 echo '* zImage - Build default imag !! 360 core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
352 echo ' zImage.* - Compressed kernel <<
353 echo ' uImage - U-Boot native imag <<
354 echo ' cuImage.<dt> - Backwards compatib <<
355 echo ' versions which do <<
356 echo ' dtbImage.<dt> - zImage with an emb <<
357 echo ' simpleImage.<dt> - Firmware independ <<
358 echo ' treeImage.<dt> - Support for older <<
359 echo ' install - Install kernel usi <<
360 echo ' (your) ~/bin/$(INS <<
361 echo ' (distribution) /sb <<
362 echo ' install to $$(INST <<
363 echo ' *_defconfig - Select default con <<
364 echo '' <<
365 echo ' Targets with <dt> embed a device tre <<
366 echo ' These targets support board with fir <<
367 echo ' support passing a device tree direct <<
368 echo ' name of a dts file from the arch/pow <<
369 echo ' (minus the .dts extension).' <<
370 echo <<
371 $(foreach cfg,$(generated_configs), <<
372 printf " %-27s - Build for %s\\n" $(cfg) <<
373 endef <<
374 361
375 PHONY += install !! 362 %.dtb %.dtb.S %.dtb.o: | scripts
376 install: !! 363 $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
377 $(call cmd,install) <<
378 364
379 ifeq ($(KBUILD_EXTMOD),) !! 365 PHONY += dtbs
380 # We need to generate vdso-offsets.h before co !! 366 dtbs: scripts
381 # In order to do that, we should use the archp !! 367 $(Q)$(MAKE) $(build)=arch/mips/boot/dts
382 # asm-offsets.h is included in some files used !! 368
383 # asm-offsets.h is built in prepare0, for whic !! 369 PHONY += dtbs_install
384 # Therefore we need to generate the header aft !! 370 dtbs_install:
385 # this hack. !! 371 $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
386 prepare: vdso_prepare !! 372
387 vdso_prepare: prepare0 !! 373 archprepare:
388 $(if $(CONFIG_VDSO32),$(Q)$(MAKE) \ !! 374 ifdef CONFIG_MIPS32_N32
389 $(build)=arch/powerpc/kernel/v !! 375 @echo ' Checking missing-syscalls for N32'
390 $(if $(CONFIG_PPC64),$(Q)$(MAKE) \ !! 376 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
391 $(build)=arch/powerpc/kernel/v <<
392 endif <<
393 <<
394 archprepare: checkbin <<
395 <<
396 archheaders: <<
397 $(Q)$(MAKE) $(build)=arch/powerpc/kern <<
398 <<
399 ifdef CONFIG_STACKPROTECTOR <<
400 prepare: stack_protector_prepare <<
401 <<
402 PHONY += stack_protector_prepare <<
403 stack_protector_prepare: prepare0 <<
404 ifdef CONFIG_PPC64 <<
405 $(eval KBUILD_CFLAGS += -mstack-protec <<
406 else <<
407 $(eval KBUILD_CFLAGS += -mstack-protec <<
408 endif 377 endif
>> 378 ifdef CONFIG_MIPS32_O32
>> 379 @echo ' Checking missing-syscalls for O32'
>> 380 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
409 endif 381 endif
410 382
411 PHONY += checkbin !! 383 install:
412 checkbin: !! 384 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
413 @if test "x${CONFIG_FTRACE_MCOUNT_USE_ !! 385 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
414 "x${CONFIG_LD_IS_BFD}" = "xy" !! 386 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
415 "${CONFIG_LD_VERSION}" = "2370 !! 387 endif
416 echo -n '*** binutils 2.37 dro !! 388 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
417 echo 'is unable to handle.' ; !! 389 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
418 echo '*** Please use a differe !! 390
419 false ; \ !! 391 archclean:
420 fi !! 392 $(Q)$(MAKE) $(clean)=arch/mips/boot
>> 393 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
>> 394 $(Q)$(MAKE) $(clean)=arch/mips/lasat
>> 395
>> 396 define archhelp
>> 397 echo ' install - install kernel into $(INSTALL_PATH)'
>> 398 echo ' vmlinux.ecoff - ECOFF boot image'
>> 399 echo ' vmlinux.bin - Raw binary boot image'
>> 400 echo ' vmlinux.srec - SREC boot image'
>> 401 echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
>> 402 echo ' vmlinuz - Compressed boot(zboot) image'
>> 403 echo ' vmlinuz.ecoff - ECOFF zboot image'
>> 404 echo ' vmlinuz.bin - Raw binary zboot image'
>> 405 echo ' vmlinuz.srec - SREC zboot image'
>> 406 echo ' uImage - U-Boot image'
>> 407 echo ' uImage.bin - U-Boot image (uncompressed)'
>> 408 echo ' uImage.bz2 - U-Boot image (bz2)'
>> 409 echo ' uImage.gz - U-Boot image (gzip)'
>> 410 echo ' uImage.lzma - U-Boot image (lzma)'
>> 411 echo ' uImage.lzo - U-Boot image (lzo)'
>> 412 echo ' dtbs - Device-tree blobs for enabled boards'
>> 413 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
>> 414 echo
>> 415 echo ' These will be default as appropriate for a configured platform.'
>> 416 endef
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