diff options
Diffstat (limited to 'arch/mips/Makefile')
| -rw-r--r-- | arch/mips/Makefile | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile new file mode 100644 index 00000000..4fedf5a5 --- /dev/null +++ b/arch/mips/Makefile @@ -0,0 +1,321 @@ +# +# 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_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_RM9000) += $(call cc-option,-march=rm9000,-march=r5000) \ + -Wa,--trap +cflags-$(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_ARC) += arch/mips/fw/arc/ +libs-$(CONFIG_CFE) += arch/mips/fw/cfe/ +libs-$(CONFIG_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 $(srctree)/arch/mips/Kbuild.platforms + +cflags-y += -I$(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 += $(cflags-y) +KBUILD_CPPFLAGS += -D"VMLINUX_LOAD_ADDRESS=$(load-y)" +KBUILD_CPPFLAGS += -D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)" + +LDFLAGS += -m $(ld-emul) + +ifdef CONFIG_MIPS +CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /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 arch/mips/kernel/init_task.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 |