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# # This file is subject to the terms and conditions of the GNU General Public # License. See the file "COPYING" in the main directory of this archive # for more details. # # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle # DECStation modifications by Paul M. Antoine, 1996 # Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki # # This file is included by the global makefile so that you can add your own # architecture-specific flags and dependencies. Remember to do have actions # for "archclean" cleaning up for this architecture. # KBUILD_DEFCONFIG := ip22_defconfig # # Select the object file format to substitute into the linker script. # ifdef CONFIG_CPU_LITTLE_ENDIAN 32bit-tool-archpref = mipsel 64bit-tool-archpref = mips64el 32bit-bfd = elf32-tradlittlemips 64bit-bfd = elf64-tradlittlemips 32bit-emul = elf32ltsmip 64bit-emul = elf64ltsmip else 32bit-tool-archpref = mips 64bit-tool-archpref = mips64 32bit-bfd = elf32-tradbigmips 64bit-bfd = elf64-tradbigmips 32bit-emul = elf32btsmip 64bit-emul = elf64btsmip endif ifdef CONFIG_32BIT tool-archpref = $(32bit-tool-archpref) UTS_MACHINE := mips endif ifdef CONFIG_64BIT tool-archpref = $(64bit-tool-archpref) UTS_MACHINE := mips64 endif ifneq ($(SUBARCH),$(ARCH)) ifeq ($(CROSS_COMPILE),) CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) endif endif ifdef CONFIG_FUNCTION_GRAPH_TRACER ifndef KBUILD_MCOUNT_RA_ADDRESS ifeq ($(call cc-option-yn,-mmcount-ra-address), y) cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS endif endif endif cflags-y += $(call cc-option, -mno-check-zero-division) ifdef CONFIG_32BIT ld-emul = $(32bit-emul) vmlinux-32 = vmlinux vmlinux-64 = vmlinux.64 cflags-y += -mabi=32 endif ifdef CONFIG_64BIT ld-emul = $(64bit-emul) vmlinux-32 = vmlinux.32 vmlinux-64 = vmlinux cflags-y += -mabi=64 endif all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz # # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel # code since it only slows down the whole thing. At some point we might make # use of global pointer optimizations but their use of $28 conflicts with # the current pointer optimization. # # The DECStation requires an ECOFF kernel for remote booting, other MIPS # machines may also. Since BFD is incredibly buggy with respect to # crossformat linking we rely on the elf2ecoff tool for format conversion. # cflags-y += -G 0 -mno-abicalls -fno-pic -pipe cflags-y += -msoft-float LDFLAGS_vmlinux += -G 0 -static -n -nostdlib KBUILD_AFLAGS_MODULE += -mlong-calls KBUILD_CFLAGS_MODULE += -mlong-calls cflags-y += -ffreestanding # # We explicitly add the endianness specifier if needed, this allows # to compile kernels with a toolchain for the other endianness. We # carefully avoid to add it redundantly because gcc 3.3/3.4 complains # when fed the toolchain default! # # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of # 2006-10-10 don't properly change the predefined symbols if -EB / -EL # are used, so we kludge that here. A bug has been filed at # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. # undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) cflags-$(CONFIG_CPU_HAS_SMARTMIPS) += $(call cc-option,-msmartmips) cflags-$(CONFIG_CPU_MICROMIPS) += $(call cc-option,-mmicromips -mno-jals) cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ -fno-omit-frame-pointer # # CPU-dependent compiler/assembler options for optimization. # cflags-$(CONFIG_CPU_R3000) += -march=r3000 cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ -Wa,-mips32 -Wa,--trap cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \ -Wa,-mips32r2 -Wa,--trap cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ -Wa,-mips64 -Wa,--trap cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \ -Wa,-mips64r2 -Wa,--trap cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ -Wa,--trap cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ -Wa,--trap cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ -Wa,--trap cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ -Wa,--trap cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ -Wa,--trap cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ -Wa,--trap cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon endif cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) ifdef CONFIG_CPU_SB1 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds endif endif # # Firmware support # libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ libs-y += arch/mips/fw/lib/ # # Kernel compression # ifdef SYS_SUPPORTS_ZBOOT COMPRESSION_FNAME = vmlinuz else COMPRESSION_FNAME = vmlinux endif # # Board-dependent options and extra files # include $(srctree)/arch/mips/Kbuild.platforms ifdef CONFIG_PHYSICAL_START load-y = $(CONFIG_PHYSICAL_START) endif cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic drivers-$(CONFIG_PCI) += arch/mips/pci/ # # Automatically detect the build format. By default we choose # the elf format according to the load address. # We can always force a build with a 64-bits symbol format by # passing 'KBUILD_SYM32=no' option to the make's command line. # ifdef CONFIG_64BIT ifndef KBUILD_SYM32 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) KBUILD_SYM32 = y endif endif ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) cflags-y += -msym32 -DKBUILD_64BIT_SYM32 else ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) endif endif endif KBUILD_AFLAGS += $(cflags-y) KBUILD_CFLAGS += $(cflags-y) KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) LDFLAGS += -m $(ld-emul) ifdef CONFIG_MIPS CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/") ifdef CONFIG_64BIT CHECKFLAGS += -m64 endif endif OBJCOPYFLAGS += --remove-section=.reginfo head-y := arch/mips/kernel/head.o libs-y += arch/mips/lib/ # See arch/mips/Kbuild for content of core part of the kernel core-y += arch/mips/ drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ # suspend and hibernation support drivers-$(CONFIG_PM) += arch/mips/power/ ifdef CONFIG_LASAT rom.bin rom.sw: vmlinux $(Q)$(MAKE) $(build)=arch/mips/lasat/image $@ endif # # Some machines like the Indy need 32-bit ELF binaries for booting purposes. # Other need ECOFF, so we build a 32-bit ELF binary for them which we then # convert to ECOFF using elf2ecoff. # vmlinux.32: vmlinux $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ #obj-$(CONFIG_KPROBES) += kprobes.o # # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit # ELF files from 32-bit files by conversion. # vmlinux.64: vmlinux $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ all: $(all-y) # boot vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@ # boot/compressed vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@ CLEAN_FILES += vmlinux.32 vmlinux.64 archprepare: ifdef CONFIG_MIPS32_N32 @echo ' Checking missing-syscalls for N32' $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" endif ifdef CONFIG_MIPS32_O32 @echo ' Checking missing-syscalls for O32' $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" endif install: $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) ifdef CONFIG_SYS_SUPPORTS_ZBOOT $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) endif $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) archclean: $(Q)$(MAKE) $(clean)=arch/mips/boot $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed $(Q)$(MAKE) $(clean)=arch/mips/lasat define archhelp echo ' install - install kernel into $(INSTALL_PATH)' echo ' vmlinux.ecoff - ECOFF boot image' echo ' vmlinux.bin - Raw binary boot image' echo ' vmlinux.srec - SREC boot image' echo ' vmlinuz - Compressed boot(zboot) image' echo ' vmlinuz.ecoff - ECOFF zboot image' echo ' vmlinuz.bin - Raw binary zboot image' echo ' vmlinuz.srec - SREC zboot image' echo echo ' These will be default as appropriate for a configured platform.' endef