Makefile revision dab1b4450df481f9d18b66fefcea6aef5e4708fb
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 15KBUILD_DEFCONFIG := ip22_defconfig 16 17# 18# Select the object file format to substitute into the linker script. 19# 20ifdef CONFIG_CPU_LITTLE_ENDIAN 2132bit-tool-archpref = mipsel 2264bit-tool-archpref = mips64el 2332bit-bfd = elf32-tradlittlemips 2464bit-bfd = elf64-tradlittlemips 2532bit-emul = elf32ltsmip 2664bit-emul = elf64ltsmip 27else 2832bit-tool-archpref = mips 2964bit-tool-archpref = mips64 3032bit-bfd = elf32-tradbigmips 3164bit-bfd = elf64-tradbigmips 3232bit-emul = elf32btsmip 3364bit-emul = elf64btsmip 34endif 35 36ifdef CONFIG_32BIT 37tool-archpref = $(32bit-tool-archpref) 38UTS_MACHINE := mips 39endif 40ifdef CONFIG_64BIT 41tool-archpref = $(64bit-tool-archpref) 42UTS_MACHINE := mips64 43endif 44 45ifneq ($(SUBARCH),$(ARCH)) 46 ifeq ($(CROSS_COMPILE),) 47 CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 48 endif 49endif 50 51ifdef CONFIG_FUNCTION_GRAPH_TRACER 52 ifndef KBUILD_MCOUNT_RA_ADDRESS 53 ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 54 cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 55 endif 56 endif 57endif 58cflags-y += $(call cc-option, -mno-check-zero-division) 59 60ifdef CONFIG_32BIT 61ld-emul = $(32bit-emul) 62vmlinux-32 = vmlinux 63vmlinux-64 = vmlinux.64 64 65cflags-y += -mabi=32 66endif 67 68ifdef CONFIG_64BIT 69ld-emul = $(64bit-emul) 70vmlinux-32 = vmlinux.32 71vmlinux-64 = vmlinux 72 73cflags-y += -mabi=64 74endif 75 76all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 77all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 78all-$(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 $28 conflicts with 84# the current pointer optimization. 85# 86# The DECStation requires an ECOFF kernel for remote booting, other MIPS 87# machines may also. Since BFD is incredibly buggy with respect to 88# crossformat linking we rely on the elf2ecoff tool for format conversion. 89# 90cflags-y += -G 0 -mno-abicalls -fno-pic -pipe 91cflags-y += -msoft-float 92LDFLAGS_vmlinux += -G 0 -static -n -nostdlib 93KBUILD_AFLAGS_MODULE += -mlong-calls 94KBUILD_CFLAGS_MODULE += -mlong-calls 95 96cflags-y += -ffreestanding 97 98# 99# We explicitly add the endianness specifier if needed, this allows 100# to compile kernels with a toolchain for the other endianness. We 101# carefully avoid to add it redundantly because gcc 3.3/3.4 complains 102# when fed the toolchain default! 103# 104# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of 105# 2006-10-10 don't properly change the predefined symbols if -EB / -EL 106# are used, so we kludge that here. A bug has been filed at 107# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. 108# 109undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ 110undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ 111predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ 112predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ 113cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) 114cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) 115 116# For smartmips configurations, there are hundreds of warnings due to ISA overrides 117# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 118# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 119# similar directives in the kernel will spam the build logs with the following warnings: 120# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 121# or 122# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 123# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 124# been fixed properly. 125cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips) -Wa,--no-warn 126cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips) 127 128cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 129 -fno-omit-frame-pointer 130 131ifeq ($(CONFIG_CPU_HAS_MSA),y) 132toolchain-msa := $(call cc-option-yn,-mhard-float -mfp64 -Wa$(comma)-mmsa) 133cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 134endif 135 136# 137# CPU-dependent compiler/assembler options for optimization. 138# 139cflags-$(CONFIG_CPU_R3000) += -march=r3000 140cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 141cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap 142cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 143cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 144cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 145cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 146cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ 147 -Wa,-mips32 -Wa,--trap 148cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ 149 -Wa,-mips32r2 -Wa,--trap 150cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ 151 -Wa,-mips64 -Wa,--trap 152cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ 153 -Wa,-mips64r2 -Wa,--trap 154cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 155cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ 156 -Wa,--trap 157cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 158 -Wa,--trap 159cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 160 -Wa,--trap 161cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 162 -Wa,--trap 163cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 164 -Wa,--trap 165cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 166cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 167cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap 168cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 169 -Wa,--trap 170cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 171ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 172cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 173endif 174cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 175cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 176 177cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 178cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 179cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 180 181ifdef CONFIG_CPU_SB1 182ifdef CONFIG_SB1_PASS_1_WORKAROUNDS 183KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds 184KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds 185endif 186endif 187 188# 189# Firmware support 190# 191libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 192libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 193libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 194libs-y += arch/mips/fw/lib/ 195 196# 197# Kernel compression 198# 199ifdef SYS_SUPPORTS_ZBOOT 200COMPRESSION_FNAME = vmlinuz 201else 202COMPRESSION_FNAME = vmlinux 203endif 204 205# 206# Board-dependent options and extra files 207# 208include $(srctree)/arch/mips/Kbuild.platforms 209 210ifdef CONFIG_PHYSICAL_START 211load-y = $(CONFIG_PHYSICAL_START) 212endif 213entry-y = 0x$(shell $(NM) vmlinux 2>/dev/null \ 214 | grep "\bkernel_entry\b" | cut -f1 -d \ ) 215 216cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 217drivers-$(CONFIG_PCI) += arch/mips/pci/ 218 219# 220# Automatically detect the build format. By default we choose 221# the elf format according to the load address. 222# We can always force a build with a 64-bits symbol format by 223# passing 'KBUILD_SYM32=no' option to the make's command line. 224# 225ifdef CONFIG_64BIT 226 ifndef KBUILD_SYM32 227 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 228 KBUILD_SYM32 = y 229 endif 230 endif 231 232 ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 233 cflags-y += -msym32 -DKBUILD_64BIT_SYM32 234 else 235 ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 236 $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 237 endif 238 endif 239endif 240 241KBUILD_AFLAGS += $(cflags-y) 242KBUILD_CFLAGS += $(cflags-y) 243KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) 244KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 245 246bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 247 VMLINUX_ENTRY_ADDRESS=$(entry-y) 248 249LDFLAGS += -m $(ld-emul) 250 251ifdef CONFIG_MIPS 252CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 253 egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 254 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/") 255ifdef CONFIG_64BIT 256CHECKFLAGS += -m64 257endif 258endif 259 260OBJCOPYFLAGS += --remove-section=.reginfo 261 262head-y := arch/mips/kernel/head.o 263 264libs-y += arch/mips/lib/ 265libs-y += arch/mips/math-emu/ 266 267# See arch/mips/Kbuild for content of core part of the kernel 268core-y += arch/mips/ 269 270drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 271 272# suspend and hibernation support 273drivers-$(CONFIG_PM) += arch/mips/power/ 274 275# boot image targets (arch/mips/boot/) 276boot-y := vmlinux.bin 277boot-y += vmlinux.ecoff 278boot-y += vmlinux.srec 279ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 280boot-y += uImage 281boot-y += uImage.gz 282endif 283 284# compressed boot image targets (arch/mips/boot/compressed/) 285bootz-y := vmlinuz 286bootz-y += vmlinuz.bin 287bootz-y += vmlinuz.ecoff 288bootz-y += vmlinuz.srec 289 290ifdef CONFIG_LASAT 291rom.bin rom.sw: vmlinux 292 $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ 293 $(bootvars-y) $@ 294endif 295 296# 297# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 298# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 299# convert to ECOFF using elf2ecoff. 300# 301quiet_cmd_32 = OBJCOPY $@ 302 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 303vmlinux.32: vmlinux 304 $(call cmd,32) 305 306# 307# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 308# ELF files from 32-bit files by conversion. 309# 310quiet_cmd_64 = OBJCOPY $@ 311 cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 312vmlinux.64: vmlinux 313 $(call cmd,64) 314 315all: $(all-y) 316 317# boot 318$(boot-y): $(vmlinux-32) FORCE 319 $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 320 $(bootvars-y) arch/mips/boot/$@ 321 322ifdef CONFIG_SYS_SUPPORTS_ZBOOT 323# boot/compressed 324$(bootz-y): $(vmlinux-32) FORCE 325 $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 326 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ 327else 328vmlinuz: FORCE 329 @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 330 /bin/false 331endif 332 333 334CLEAN_FILES += vmlinux.32 vmlinux.64 335 336archprepare: 337ifdef CONFIG_MIPS32_N32 338 @echo ' Checking missing-syscalls for N32' 339 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 340endif 341ifdef CONFIG_MIPS32_O32 342 @echo ' Checking missing-syscalls for O32' 343 $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 344endif 345 346install: 347 $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 348ifdef CONFIG_SYS_SUPPORTS_ZBOOT 349 $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 350endif 351 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 352 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 353 354archclean: 355 $(Q)$(MAKE) $(clean)=arch/mips/boot 356 $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 357 $(Q)$(MAKE) $(clean)=arch/mips/lasat 358 359define archhelp 360 echo ' install - install kernel into $(INSTALL_PATH)' 361 echo ' vmlinux.ecoff - ECOFF boot image' 362 echo ' vmlinux.bin - Raw binary boot image' 363 echo ' vmlinux.srec - SREC boot image' 364 echo ' vmlinuz - Compressed boot(zboot) image' 365 echo ' vmlinuz.ecoff - ECOFF zboot image' 366 echo ' vmlinuz.bin - Raw binary zboot image' 367 echo ' vmlinuz.srec - SREC zboot image' 368 echo ' uImage - U-Boot image' 369 echo ' uImage.gz - U-Boot image (gzip)' 370 echo 371 echo ' These will be default as appropriate for a configured platform.' 372endef 373