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) 2013 Altera Corporation !! 6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
7 # Copyright (C) 1994, 95, 96, 2003 by Wind Riv !! 7 # DECStation modifications by Paul M. Antoine, 1996
8 # Written by Fredrik Markstrom !! 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 # Nios2 port by Wind River Systems Inc trough: <<
14 # fredrik.markstrom@gmail.com and ivarholmqv <<
15 14
16 KBUILD_DEFCONFIG := 3c120_defconfig !! 15 KBUILD_DEFCONFIG := ip22_defconfig
17 16
18 UTS_SYSNAME = Linux !! 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- $(tool-archpref)-unknown-linux-gnu-)
>> 48 endif
>> 49 endif
>> 50
>> 51 ifdef CONFIG_FUNCTION_GRAPH_TRACER
>> 52 ifndef KBUILD_MCOUNT_RA_ADDRESS
>> 53 ifeq ($(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)
>> 59
>> 60 ifdef CONFIG_32BIT
>> 61 ld-emul = $(32bit-emul)
>> 62 vmlinux-32 = vmlinux
>> 63 vmlinux-64 = vmlinux.64
>> 64
>> 65 cflags-y += -mabi=32
>> 66 endif
>> 67
>> 68 ifdef CONFIG_64BIT
>> 69 ld-emul = $(64bit-emul)
>> 70 vmlinux-32 = vmlinux.32
>> 71 vmlinux-64 = vmlinux
>> 72
>> 73 cflags-y += -mabi=64
>> 74 endif
>> 75
>> 76 all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
>> 77 all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
>> 78 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
>> 79
>> 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 $28 conflicts with
>> 84 # the current pointer optimization.
>> 85 #
>> 86 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
>> 87 # machines may also. Since BFD is incredibly buggy with respect to
>> 88 # crossformat linking we rely on the elf2ecoff tool for format conversion.
>> 89 #
>> 90 cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
>> 91 cflags-y += -msoft-float
>> 92 LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
>> 93 KBUILD_AFLAGS_MODULE += -mlong-calls
>> 94 KBUILD_CFLAGS_MODULE += -mlong-calls
19 95
20 export MMU !! 96 cflags-y += -ffreestanding
>> 97
>> 98 #
>> 99 # We explicitly add the endianness specifier if needed, this allows
>> 100 # to compile kernels with a toolchain for the other endianness. We
>> 101 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
>> 102 # when fed the toolchain default!
>> 103 #
>> 104 # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
>> 105 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
>> 106 # are used, so we kludge that here. A bug has been filed at
>> 107 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
>> 108 #
>> 109 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
>> 110 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
>> 111 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
>> 112 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
>> 113 cflags-$(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))
21 115
22 LIBGCC := $(shell $(CC) $(KBUILD_CFLAG !! 116 cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips)
>> 117 cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips -mno-jals)
23 118
24 KBUILD_AFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 119 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
>> 120 -fno-omit-frame-pointer
25 121
26 KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__ !! 122 #
27 KBUILD_CFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 123 # CPU-dependent compiler/assembler options for optimization.
28 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SU !! 124 #
29 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_S !! 125 cflags-$(CONFIG_CPU_R3000) += -march=r3000
30 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SU !! 126 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
31 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_BMX_SUPPO !! 127 cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap
32 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_CDX_SUPPO !! 128 cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
33 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPO !! 129 cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
>> 130 cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
>> 131 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
>> 132 cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
>> 133 -Wa,-mips32 -Wa,--trap
>> 134 cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
>> 135 -Wa,-mips32r2 -Wa,--trap
>> 136 cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 137 -Wa,-mips64 -Wa,--trap
>> 138 cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
>> 139 -Wa,-mips64r2 -Wa,--trap
>> 140 cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
>> 141 cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
>> 142 -Wa,--trap
>> 143 cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
>> 144 -Wa,--trap
>> 145 cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
>> 146 -Wa,--trap
>> 147 cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
>> 148 -Wa,--trap
>> 149 cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
>> 150 -Wa,--trap
>> 151 cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
>> 152 cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
>> 153 -Wa,--trap
>> 154 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
>> 155 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
>> 156 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
>> 157 endif
>> 158 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
>> 159 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
>> 160
>> 161 cflags-$(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) += $(call cc-option,-mno-daddi,)
>> 164
>> 165 ifdef CONFIG_CPU_SB1
>> 166 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
>> 167 KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
>> 168 KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
>> 169 endif
>> 170 endif
34 171
35 KBUILD_CFLAGS += -fno-optimize-sibling-calls !! 172 #
36 KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME !! 173 # Firmware support
37 KBUILD_CFLAGS += -fno-builtin !! 174 #
38 KBUILD_CFLAGS += -G 0 !! 175 libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
>> 176 libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
>> 177 libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
>> 178 libs-y += arch/mips/fw/lib/
39 179
40 libs-y += arch/nios2/lib/ $(LIBGCC) !! 180 #
>> 181 # Kernel compression
>> 182 #
>> 183 ifdef SYS_SUPPORTS_ZBOOT
>> 184 COMPRESSION_FNAME = vmlinuz
>> 185 else
>> 186 COMPRESSION_FNAME = vmlinux
>> 187 endif
41 188
42 INSTALL_PATH ?= /tftpboot !! 189 #
43 nios2-boot := arch/$(ARCH)/boot !! 190 # Board-dependent options and extra files
44 BOOT_TARGETS = vmImage zImage !! 191 #
45 PHONY += $(BOOT_TARGETS) install !! 192 include $(srctree)/arch/mips/Kbuild.platforms
46 KBUILD_IMAGE := $(nios2-boot)/vmImage !! 193
>> 194 ifdef CONFIG_PHYSICAL_START
>> 195 load-y = $(CONFIG_PHYSICAL_START)
>> 196 endif
>> 197
>> 198 cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
>> 199 drivers-$(CONFIG_PCI) += arch/mips/pci/
>> 200
>> 201 #
>> 202 # Automatically detect the build format. By default we choose
>> 203 # the elf format according to the load address.
>> 204 # We can always force a build with a 64-bits symbol format by
>> 205 # passing 'KBUILD_SYM32=no' option to the make's command line.
>> 206 #
>> 207 ifdef CONFIG_64BIT
>> 208 ifndef KBUILD_SYM32
>> 209 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
>> 210 KBUILD_SYM32 = y
>> 211 endif
>> 212 endif
>> 213
>> 214 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
>> 215 cflags-y += -msym32 -DKBUILD_64BIT_SYM32
>> 216 else
>> 217 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
>> 218 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
>> 219 endif
>> 220 endif
>> 221 endif
>> 222
>> 223 KBUILD_AFLAGS += $(cflags-y)
>> 224 KBUILD_CFLAGS += $(cflags-y)
>> 225 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
>> 226 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
>> 227
>> 228 LDFLAGS += -m $(ld-emul)
>> 229
>> 230 ifdef CONFIG_MIPS
>> 231 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
>> 232 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
>> 233 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
>> 234 ifdef CONFIG_64BIT
>> 235 CHECKFLAGS += -m64
>> 236 endif
>> 237 endif
>> 238
>> 239 OBJCOPYFLAGS += --remove-section=.reginfo
>> 240
>> 241 head-y := arch/mips/kernel/head.o
>> 242
>> 243 libs-y += arch/mips/lib/
>> 244
>> 245 # See arch/mips/Kbuild for content of core part of the kernel
>> 246 core-y += arch/mips/
>> 247
>> 248 drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
>> 249
>> 250 # suspend and hibernation support
>> 251 drivers-$(CONFIG_PM) += arch/mips/power/
>> 252
>> 253 ifdef CONFIG_LASAT
>> 254 rom.bin rom.sw: vmlinux
>> 255 $(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
>> 256 endif
>> 257
>> 258 #
>> 259 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
>> 260 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
>> 261 # convert to ECOFF using elf2ecoff.
>> 262 #
>> 263 vmlinux.32: vmlinux
>> 264 $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
>> 265
>> 266
>> 267 #obj-$(CONFIG_KPROBES) += kprobes.o
>> 268
>> 269 #
>> 270 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
>> 271 # ELF files from 32-bit files by conversion.
>> 272 #
>> 273 vmlinux.64: vmlinux
>> 274 $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
47 275
48 all: vmImage !! 276 all: $(all-y)
49 277
50 $(BOOT_TARGETS): vmlinux !! 278 # boot
51 $(Q)$(MAKE) $(build)=$(nios2-boot) $(n !! 279 vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE
>> 280 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
>> 281
>> 282 # boot/compressed
>> 283 vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
>> 284 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
>> 285 VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@
>> 286
>> 287
>> 288 CLEAN_FILES += vmlinux.32 vmlinux.64
>> 289
>> 290 archprepare:
>> 291 ifdef CONFIG_MIPS32_N32
>> 292 @echo ' Checking missing-syscalls for N32'
>> 293 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
>> 294 endif
>> 295 ifdef CONFIG_MIPS32_O32
>> 296 @echo ' Checking missing-syscalls for O32'
>> 297 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
>> 298 endif
52 299
53 install: 300 install:
54 $(call cmd,install) !! 301 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
>> 302 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
>> 303 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
>> 304 endif
>> 305 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
>> 306 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
>> 307
>> 308 archclean:
>> 309 $(Q)$(MAKE) $(clean)=arch/mips/boot
>> 310 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
>> 311 $(Q)$(MAKE) $(clean)=arch/mips/lasat
55 312
56 define archhelp 313 define archhelp
57 echo '* vmImage - Kernel-only image !! 314 echo ' install - install kernel into $(INSTALL_PATH)'
58 echo ' install - Install kernel us !! 315 echo ' vmlinux.ecoff - ECOFF boot image'
59 echo ' (your) ~/bin/$(I !! 316 echo ' vmlinux.bin - Raw binary boot image'
60 echo ' (distribution) / !! 317 echo ' vmlinux.srec - SREC boot image'
61 echo ' install to $$(IN !! 318 echo ' vmlinuz - Compressed boot(zboot) image'
>> 319 echo ' vmlinuz.ecoff - ECOFF zboot image'
>> 320 echo ' vmlinuz.bin - Raw binary zboot image'
>> 321 echo ' vmlinuz.srec - SREC zboot image'
>> 322 echo
>> 323 echo ' These will be default as appropriate for a configured platform.'
62 endef 324 endef
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