11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# This file is subject to the terms and conditions of the GNU General Public 31da177e4SLinus Torvalds# License. See the file "COPYING" in the main directory of this archive 41da177e4SLinus Torvalds# for more details. 51da177e4SLinus Torvalds# 61da177e4SLinus Torvalds# Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle 71da177e4SLinus Torvalds# DECStation modifications by Paul M. Antoine, 1996 81da177e4SLinus Torvalds# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki 91da177e4SLinus Torvalds# 101da177e4SLinus Torvalds# This file is included by the global makefile so that you can add your own 111da177e4SLinus Torvalds# architecture-specific flags and dependencies. Remember to do have actions 121da177e4SLinus Torvalds# for "archclean" cleaning up for this architecture. 131da177e4SLinus Torvalds# 141da177e4SLinus Torvalds 15aadeec4dSMatt Redfearnarchscripts: scripts_basic 16e245767aSPaul Burton $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry 17e4acfbc1SPaul Burtonifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y) 18e4acfbc1SPaul Burton $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check 19e4acfbc1SPaul Burtonendif 20aadeec4dSMatt Redfearn $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 21aadeec4dSMatt Redfearn 2204d8405eSMatt RedfearnKBUILD_DEFCONFIG := 32r2el_defconfig 23637dfa0fSCedric HombourgerKBUILD_DTBS := dtbs 24de0c1698SAdrian Bunk 251da177e4SLinus Torvalds# 261da177e4SLinus Torvalds# Select the object file format to substitute into the linker script. 271da177e4SLinus Torvalds# 281da177e4SLinus Torvaldsifdef CONFIG_CPU_LITTLE_ENDIAN 2917f690beSRalf Baechle32bit-tool-archpref = mipsel 3017f690beSRalf Baechle64bit-tool-archpref = mips64el 311da177e4SLinus Torvalds32bit-bfd = elf32-tradlittlemips 321da177e4SLinus Torvalds64bit-bfd = elf64-tradlittlemips 331da177e4SLinus Torvalds32bit-emul = elf32ltsmip 341da177e4SLinus Torvalds64bit-emul = elf64ltsmip 351da177e4SLinus Torvaldselse 3617f690beSRalf Baechle32bit-tool-archpref = mips 3717f690beSRalf Baechle64bit-tool-archpref = mips64 381da177e4SLinus Torvalds32bit-bfd = elf32-tradbigmips 391da177e4SLinus Torvalds64bit-bfd = elf64-tradbigmips 401da177e4SLinus Torvalds32bit-emul = elf32btsmip 411da177e4SLinus Torvalds64bit-emul = elf64btsmip 421da177e4SLinus Torvaldsendif 431da177e4SLinus Torvalds 44875d43e7SRalf Baechleifdef CONFIG_32BIT 4517f690beSRalf Baechletool-archpref = $(32bit-tool-archpref) 461da177e4SLinus TorvaldsUTS_MACHINE := mips 471da177e4SLinus Torvaldsendif 48875d43e7SRalf Baechleifdef CONFIG_64BIT 4917f690beSRalf Baechletool-archpref = $(64bit-tool-archpref) 501da177e4SLinus TorvaldsUTS_MACHINE := mips64 511da177e4SLinus Torvaldsendif 521da177e4SLinus Torvalds 5317f690beSRalf Baechleifneq ($(SUBARCH),$(ARCH)) 5417f690beSRalf Baechle ifeq ($(CROSS_COMPILE),) 553247989eSMaciej W. Rozycki CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 5617f690beSRalf Baechle endif 571da177e4SLinus Torvaldsendif 581da177e4SLinus Torvalds 597326c4e5SWu Zhangjinifdef CONFIG_FUNCTION_GRAPH_TRACER 607326c4e5SWu Zhangjin ifndef KBUILD_MCOUNT_RA_ADDRESS 617326c4e5SWu Zhangjin ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 627326c4e5SWu Zhangjin cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 637326c4e5SWu Zhangjin endif 647326c4e5SWu Zhangjin endif 657326c4e5SWu Zhangjinendif 661a4ba061SRalf Baechlecflags-y += $(call cc-option, -mno-check-zero-division) 6705e41404SRalf Baechle 688145095cSRalf Baechleifdef CONFIG_32BIT 691da177e4SLinus Torvaldsld-emul = $(32bit-emul) 701da177e4SLinus Torvaldsvmlinux-32 = vmlinux 711da177e4SLinus Torvaldsvmlinux-64 = vmlinux.64 7259b3e8e9SRalf Baechle 7359b3e8e9SRalf Baechlecflags-y += -mabi=32 748145095cSRalf Baechleendif 751da177e4SLinus Torvalds 768145095cSRalf Baechleifdef CONFIG_64BIT 778145095cSRalf Baechleld-emul = $(64bit-emul) 788145095cSRalf Baechlevmlinux-32 = vmlinux.32 798145095cSRalf Baechlevmlinux-64 = vmlinux 808145095cSRalf Baechle 8159b3e8e9SRalf Baechlecflags-y += -mabi=64 8259b3e8e9SRalf Baechleendif 8359b3e8e9SRalf Baechle 848496b401SRalf Baechleall-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 858496b401SRalf Baechleall-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 861b93b3c3SWu Zhangjinall-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 871da177e4SLinus Torvalds 881da177e4SLinus Torvalds# 891da177e4SLinus Torvalds# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 901da177e4SLinus Torvalds# code since it only slows down the whole thing. At some point we might make 911da177e4SLinus Torvalds# use of global pointer optimizations but their use of $28 conflicts with 921da177e4SLinus Torvalds# the current pointer optimization. 931da177e4SLinus Torvalds# 941da177e4SLinus Torvalds# The DECStation requires an ECOFF kernel for remote booting, other MIPS 951da177e4SLinus Torvalds# machines may also. Since BFD is incredibly buggy with respect to 961da177e4SLinus Torvalds# crossformat linking we rely on the elf2ecoff tool for format conversion. 971da177e4SLinus Torvalds# 981da177e4SLinus Torvaldscflags-y += -G 0 -mno-abicalls -fno-pic -pipe 996218cf44SRalf Baechlecflags-y += -msoft-float 1009f83d839SThiemo SeuferLDFLAGS_vmlinux += -G 0 -static -n -nostdlib 1016588169dSSam RavnborgKBUILD_AFLAGS_MODULE += -mlong-calls 1026588169dSSam RavnborgKBUILD_CFLAGS_MODULE += -mlong-calls 1031da177e4SLinus Torvalds 104e818fac5SMatt Redfearnifeq ($(CONFIG_RELOCATABLE),y) 105e818fac5SMatt RedfearnLDFLAGS_vmlinux += --emit-relocs 106e818fac5SMatt Redfearnendif 107e818fac5SMatt Redfearn 108842dfc11SManuel Lauss# 109842dfc11SManuel Lauss# pass -msoft-float to GAS if it supports it. However on newer binutils 110842dfc11SManuel Lauss# (specifically newer than 2.24.51.20140728) we then also need to explicitly 111842dfc11SManuel Lauss# set ".set hardfloat" in all files which manipulate floating point registers. 112842dfc11SManuel Lauss# 113842dfc11SManuel Laussifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 114842dfc11SManuel Lauss cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 115842dfc11SManuel Laussendif 116842dfc11SManuel Lauss 11772fbfb26SRalf Baechlecflags-y += -ffreestanding 11872fbfb26SRalf Baechle 119c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 120c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 121f425a6dcSThiemo Seufer 1229007c9a2SRalf Baechlecflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 1239007c9a2SRalf Baechle -fno-omit-frame-pointer 124573deec0SJoshua Kinard 125573deec0SJoshua Kinard# Some distribution-specific toolchains might pass the -fstack-check 126573deec0SJoshua Kinard# option during the build, which adds a simple stack-probe at the beginning 127573deec0SJoshua Kinard# of every function. This stack probe is to ensure that there is enough 128573deec0SJoshua Kinard# stack space, else a SEGV is generated. This is not desirable for MIPS 129573deec0SJoshua Kinard# as kernel stacks are small, placed in unmapped virtual memory, and do not 130573deec0SJoshua Kinard# grow when overflowed. Especially on SGI IP27 platforms, this check will 131573deec0SJoshua Kinard# lead to a NULL pointer dereference in _raw_spin_lock_irq. 132573deec0SJoshua Kinard# 133573deec0SJoshua Kinard# In disassembly, this stack probe appears at the top of a function as: 134573deec0SJoshua Kinard# sd zero,<offset>(sp) 135573deec0SJoshua Kinard# Where <offset> is a negative value. 136573deec0SJoshua Kinard# 137573deec0SJoshua Kinardcflags-y += -fno-stack-check 138573deec0SJoshua Kinard 1391da177e4SLinus Torvalds# 1401da177e4SLinus Torvalds# CPU-dependent compiler/assembler options for optimization. 1411da177e4SLinus Torvalds# 14259b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R3000) += -march=r3000 14359b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX39XX) += -march=r3900 14459b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 14559b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 14659b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 147344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 148344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 149ab7c01fdSSerge Semincflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg 15021855a6eSMiodrag Diniccflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 151344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 152344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 153ab7c01fdSSerge Semincflags-$(CONFIG_CPU_MIPS64_R5) += -march=mips64r5 -Wa,--trap 1547fd08ca5SLeonid Yegoshincflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 155281e3aeaSSerge Semincflags-$(CONFIG_CPU_P5600) += -march=p5600 -Wa,--trap -modd-spreg 15659b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 157542c1020SShinya Kuribayashicflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 158542c1020SShinya Kuribayashi -Wa,--trap 159c9e321e0SRalf Baechlecflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 1601da177e4SLinus Torvalds -Wa,--trap 16159b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 1621da177e4SLinus Torvalds -Wa,--trap 163b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 1641da177e4SLinus Torvalds -Wa,--trap 165b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 166b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 16759b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 1681da177e4SLinus Torvalds -Wa,--trap 1697e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 1707e69deb8SDavid Daneyifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 1717e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 1727e69deb8SDavid Daneyendif 173c9941158SDavid Daneycflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 1741c7c4451SKevin Cernekeecflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 1751da177e4SLinus Torvalds 17620d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 17720d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 17820d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 17920d60d99SMaciej W. Rozycki 18032098ec7SMarkos Chandras# For smartmips configurations, there are hundreds of warnings due to ISA overrides 18132098ec7SMarkos Chandras# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 18232098ec7SMarkos Chandras# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 18332098ec7SMarkos Chandras# similar directives in the kernel will spam the build logs with the following warnings: 18432098ec7SMarkos Chandras# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 18532098ec7SMarkos Chandras# or 18632098ec7SMarkos Chandras# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 18732098ec7SMarkos Chandras# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 18832098ec7SMarkos Chandras# been fixed properly. 1895306a545SMarkos Chandrasmips-cflags := $(cflags-y) 1905306a545SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 1915306a545SMarkos Chandrassmartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 1925306a545SMarkos Chandrascflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 1935306a545SMarkos Chandrasendif 1945306a545SMarkos Chandrasifeq ($(CONFIG_CPU_MICROMIPS),y) 1955306a545SMarkos Chandrasmicromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 1965306a545SMarkos Chandrascflags-$(micromips-ase) += -mmicromips 1975306a545SMarkos Chandrasendif 19832098ec7SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_MSA),y) 1995306a545SMarkos Chandrastoolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 20032098ec7SMarkos Chandrascflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 20132098ec7SMarkos Chandrasendif 202bad50d79SJames Hogantoolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 203bad50d79SJames Hogancflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 2048e4789d2SJames Hogan# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 2058e4789d2SJames Hogan# only warns 2068e4789d2SJames Hoganxpa-cflags-y := $(mips-cflags) 2078e4789d2SJames Hoganxpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 2088e4789d2SJames Hogantoolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 2098e4789d2SJames Hogancflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 2104a5dc51eSMarcin Nowakowskitoolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 2114a5dc51eSMarcin Nowakowskicflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 212edbb4233SPaul Burtontoolchain-dsp := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp) 213edbb4233SPaul Burtoncflags-$(toolchain-dsp) += -DTOOLCHAIN_SUPPORTS_DSP 21453511389SPaul Burtontoolchain-ginv := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv) 21553511389SPaul Burtoncflags-$(toolchain-ginv) += -DTOOLCHAIN_SUPPORTS_GINV 21632098ec7SMarkos Chandras 2171da177e4SLinus Torvalds# 2181da177e4SLinus Torvalds# Firmware support 2191da177e4SLinus Torvalds# 2200e2794b0SRalf Baechlelibs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 2210e2794b0SRalf Baechlelibs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 2220e2794b0SRalf Baechlelibs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 223231a35d3SThomas Bogendoerferlibs-y += arch/mips/fw/lib/ 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds# 226ebc89718SRalf Baechle# Kernel compression 227ebc89718SRalf Baechle# 228809769a8SDaniel Sabogalifdef CONFIG_SYS_SUPPORTS_ZBOOT 229ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinuz 230ebc89718SRalf Baechleelse 231ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinux 232ebc89718SRalf Baechleendif 233ebc89718SRalf Baechle 234ebc89718SRalf Baechle# 2351da177e4SLinus Torvalds# Board-dependent options and extra files 2361da177e4SLinus Torvalds# 237a436bb7bSMasahiro Yamadainclude arch/mips/Kbuild.platforms 2387ca5dc14SFlorian Fainelli 239abe77f90SRalf Baechleifdef CONFIG_PHYSICAL_START 240abe77f90SRalf Baechleload-y = $(CONFIG_PHYSICAL_START) 241abe77f90SRalf Baechleendif 2425fc9484fSPaul Burton 243e245767aSPaul Burtonentry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) 244384740dcSRalf Baechlecflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 2451da177e4SLinus Torvaldsdrivers-$(CONFIG_PCI) += arch/mips/pci/ 2461da177e4SLinus Torvalds 247adff90a9SFranck Bui-Huu# 248adff90a9SFranck Bui-Huu# Automatically detect the build format. By default we choose 249adff90a9SFranck Bui-Huu# the elf format according to the load address. 250adff90a9SFranck Bui-Huu# We can always force a build with a 64-bits symbol format by 251054c51b4SFranck Bui-Huu# passing 'KBUILD_SYM32=no' option to the make's command line. 252adff90a9SFranck Bui-Huu# 253adff90a9SFranck Bui-Huuifdef CONFIG_64BIT 254054c51b4SFranck Bui-Huu ifndef KBUILD_SYM32 255adff90a9SFranck Bui-Huu ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 256054c51b4SFranck Bui-Huu KBUILD_SYM32 = y 257adff90a9SFranck Bui-Huu endif 258adff90a9SFranck Bui-Huu endif 259adff90a9SFranck Bui-Huu 26020d60d99SMaciej W. Rozycki ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 261054c51b4SFranck Bui-Huu cflags-y += -msym32 -DKBUILD_64BIT_SYM32 26220d60d99SMaciej W. Rozycki else 26320d60d99SMaciej W. Rozycki ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 26420d60d99SMaciej W. Rozycki $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 265adff90a9SFranck Bui-Huu endif 266adff90a9SFranck Bui-Huu endif 267e58d95abSFranck Bui-Huuendif 268adff90a9SFranck Bui-Huu 269ff487d41SJiaxun Yang# When linking a 32-bit executable the LLVM linker cannot cope with a 270ff487d41SJiaxun Yang# 32-bit load address that has been sign-extended to 64 bits. Simply 271ff487d41SJiaxun Yang# remove the upper 32 bits then, as it is safe to do so with other 272ff487d41SJiaxun Yang# linkers. 273ff487d41SJiaxun Yangifdef CONFIG_64BIT 274ff487d41SJiaxun Yang load-ld = $(load-y) 275ff487d41SJiaxun Yangelse 276ff487d41SJiaxun Yang load-ld = $(subst 0xffffffff,0x,$(load-y)) 277ff487d41SJiaxun Yangendif 278ff487d41SJiaxun Yang 279222d394dSSam RavnborgKBUILD_AFLAGS += $(cflags-y) 28051b563fcSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 281ff487d41SJiaxun YangKBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld) 282f7fc237eSMichal MarekKBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 2831da177e4SLinus Torvalds 2843185557dSJames Hoganbootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 285ff487d41SJiaxun Yang LINKER_LOAD_ADDRESS=$(load-ld) \ 286cf2a5e0bSPaul Burton VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 287436c6a44SPaul Burton PLATFORM="$(platform-y)" \ 288436c6a44SPaul Burton ITS_INPUTS="$(its-y)" 289eed0eabdSPaul Burtonifdef CONFIG_32BIT 290eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=32 291eed0eabdSPaul Burtonendif 292eed0eabdSPaul Burtonifdef CONFIG_64BIT 293eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=64 294eed0eabdSPaul Burtonendif 2953185557dSJames Hogan 296866b6a89SCorey Minyard# This is required to get dwarf unwinding tables into .debug_frame 297866b6a89SCorey Minyard# instead of .eh_frame so we don't discard them. 298866b6a89SCorey MinyardKBUILD_CFLAGS += -fno-asynchronous-unwind-tables 299866b6a89SCorey Minyard 300d503ac53SMasahiro YamadaKBUILD_LDFLAGS += -m $(ld-emul) 3011da177e4SLinus Torvalds 30259b3e8e9SRalf Baechleifdef CONFIG_MIPS 303a0f97e06SSam RavnborgCHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 30448c35b2dSAlexey Dobriyan egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 30573d8f99cSAaro Koskinen sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 30659b3e8e9SRalf Baechleendif 30759b3e8e9SRalf Baechle 3081da177e4SLinus TorvaldsOBJCOPYFLAGS += --remove-section=.reginfo 3091da177e4SLinus Torvalds 310957b369cSThomas Gleixnerhead-y := arch/mips/kernel/head.o 3111da177e4SLinus Torvalds 3121da177e4SLinus Torvaldslibs-y += arch/mips/lib/ 31342b10815SPaul Burtonlibs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/ 3141da177e4SLinus Torvalds 3159aeb404bSSam Ravnborg# See arch/mips/Kbuild for content of core part of the kernel 3169aeb404bSSam Ravnborgcore-y += arch/mips/ 3171da177e4SLinus Torvalds 3183a2f58f3SArd Biesheuveldrivers-y += arch/mips/crypto/ 3191da177e4SLinus Torvaldsdrivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 3201da177e4SLinus Torvalds 321363c55caSWu Zhangjin# suspend and hibernation support 322363c55caSWu Zhangjindrivers-$(CONFIG_PM) += arch/mips/power/ 323363c55caSWu Zhangjin 32438d2d649SJames Hogan# boot image targets (arch/mips/boot/) 32538d2d649SJames Hoganboot-y := vmlinux.bin 32638d2d649SJames Hoganboot-y += vmlinux.ecoff 32738d2d649SJames Hoganboot-y += vmlinux.srec 3284defe455SJames Hoganifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 3294defe455SJames Hoganboot-y += uImage 3309d6b80faSMarkos Chandrasboot-y += uImage.bin 3319d6b80faSMarkos Chandrasboot-y += uImage.bz2 3324defe455SJames Hoganboot-y += uImage.gz 3339d6b80faSMarkos Chandrasboot-y += uImage.lzma 3349d6b80faSMarkos Chandrasboot-y += uImage.lzo 3354defe455SJames Hoganendif 336cf2a5e0bSPaul Burtonboot-y += vmlinux.itb 337cf2a5e0bSPaul Burtonboot-y += vmlinux.gz.itb 338cf2a5e0bSPaul Burtonboot-y += vmlinux.bz2.itb 339cf2a5e0bSPaul Burtonboot-y += vmlinux.lzma.itb 340cf2a5e0bSPaul Burtonboot-y += vmlinux.lzo.itb 34138d2d649SJames Hogan 34238d2d649SJames Hogan# compressed boot image targets (arch/mips/boot/compressed/) 34338d2d649SJames Hoganbootz-y := vmlinuz 34438d2d649SJames Hoganbootz-y += vmlinuz.bin 34538d2d649SJames Hoganbootz-y += vmlinuz.ecoff 34638d2d649SJames Hoganbootz-y += vmlinuz.srec 347ccebb88aSMaarten ter Huurneifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 348ccebb88aSMaarten ter Huurnebootz-y += uzImage.bin 349ccebb88aSMaarten ter Huurneendif 350*a3fb6550SAlexander Lobakinbootz-y += vmlinuz.itb 35138d2d649SJames Hogan 3521da177e4SLinus Torvalds# 3531da177e4SLinus Torvalds# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 3541da177e4SLinus Torvalds# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 3551da177e4SLinus Torvalds# convert to ECOFF using elf2ecoff. 3561da177e4SLinus Torvalds# 357007fbbeaSWu Zhangjinquiet_cmd_32 = OBJCOPY $@ 358007fbbeaSWu Zhangjin cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 3591da177e4SLinus Torvaldsvmlinux.32: vmlinux 360007fbbeaSWu Zhangjin $(call cmd,32) 3611da177e4SLinus Torvalds 3621da177e4SLinus Torvalds# 3631da177e4SLinus Torvalds# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 3641da177e4SLinus Torvalds# ELF files from 32-bit files by conversion. 3651da177e4SLinus Torvalds# 366007fbbeaSWu Zhangjinquiet_cmd_64 = OBJCOPY $@ 367007fbbeaSWu Zhangjin cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 3681da177e4SLinus Torvaldsvmlinux.64: vmlinux 369007fbbeaSWu Zhangjin $(call cmd,64) 3701da177e4SLinus Torvalds 371637dfa0fSCedric Hombourgerall: $(all-y) $(KBUILD_DTBS) 3721da177e4SLinus Torvalds 37335eaa1e9SSam Ravnborg# boot 37438d2d649SJames Hogan$(boot-y): $(vmlinux-32) FORCE 3753185557dSJames Hogan $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 3763185557dSJames Hogan $(bootvars-y) arch/mips/boot/$@ 3771da177e4SLinus Torvalds 37826fca83aSFlorian Fainelliifdef CONFIG_SYS_SUPPORTS_ZBOOT 37935eaa1e9SSam Ravnborg# boot/compressed 38038d2d649SJames Hogan$(bootz-y): $(vmlinux-32) FORCE 38135eaa1e9SSam Ravnborg $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 3829d63bcb8SAlexander Lobakin $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@ 38326fca83aSFlorian Fainellielse 38426fca83aSFlorian Fainellivmlinuz: FORCE 38526fca83aSFlorian Fainelli @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 38626fca83aSFlorian Fainelli /bin/false 38726fca83aSFlorian Fainelliendif 38835eaa1e9SSam Ravnborg 38935eaa1e9SSam Ravnborg 390d745866eSSam RavnborgCLEAN_FILES += vmlinux.32 vmlinux.64 3911da177e4SLinus Torvalds 3927fafb068SAndrew Bresticker# device-trees 39337c8a5faSRob Herringcore-y += arch/mips/boot/dts/ 394c8d333dfSAndrew Bresticker 395e48ce6b8SAtsushi Nemotoarchprepare: 396e48ce6b8SAtsushi Nemotoifdef CONFIG_MIPS32_N32 3978c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for N32' 39844656fa0SDavid Daney $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 399e48ce6b8SAtsushi Nemotoendif 400e48ce6b8SAtsushi Nemotoifdef CONFIG_MIPS32_O32 4018c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for O32' 40244656fa0SDavid Daney $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 403e48ce6b8SAtsushi Nemotoendif 404e48ce6b8SAtsushi Nemoto 40559968d3bSRalf Baechleinstall: 40659968d3bSRalf Baechle $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 407d9beeecaSRalf Baechleifdef CONFIG_SYS_SUPPORTS_ZBOOT 4081b93b3c3SWu Zhangjin $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 409d9beeecaSRalf Baechleendif 41059968d3bSRalf Baechle $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 41159968d3bSRalf Baechle $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 41259968d3bSRalf Baechle 4131da177e4SLinus Torvaldsarchclean: 414d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot 415d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 416aadeec4dSMatt Redfearn $(Q)$(MAKE) $(clean)=arch/mips/boot/tools 4171da177e4SLinus Torvalds 41899bf73ebSFiroz Khanarchheaders: 41999bf73ebSFiroz Khan $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all 42099bf73ebSFiroz Khan 421e7865765SRalf Baechledefine archhelp 42259968d3bSRalf Baechle echo ' install - install kernel into $(INSTALL_PATH)' 423e7865765SRalf Baechle echo ' vmlinux.ecoff - ECOFF boot image' 424e7865765SRalf Baechle echo ' vmlinux.bin - Raw binary boot image' 425e7865765SRalf Baechle echo ' vmlinux.srec - SREC boot image' 42678931652SJoshua Kinard echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 4271b93b3c3SWu Zhangjin echo ' vmlinuz - Compressed boot(zboot) image' 4281b93b3c3SWu Zhangjin echo ' vmlinuz.ecoff - ECOFF zboot image' 4291b93b3c3SWu Zhangjin echo ' vmlinuz.bin - Raw binary zboot image' 4301b93b3c3SWu Zhangjin echo ' vmlinuz.srec - SREC zboot image' 4314defe455SJames Hogan echo ' uImage - U-Boot image' 4329d6b80faSMarkos Chandras echo ' uImage.bin - U-Boot image (uncompressed)' 4339d6b80faSMarkos Chandras echo ' uImage.bz2 - U-Boot image (bz2)' 4344defe455SJames Hogan echo ' uImage.gz - U-Boot image (gzip)' 4359d6b80faSMarkos Chandras echo ' uImage.lzma - U-Boot image (lzma)' 4369d6b80faSMarkos Chandras echo ' uImage.lzo - U-Boot image (lzo)' 437ccebb88aSMaarten ter Huurne echo ' uzImage.bin - U-Boot image (self-extracting)' 438e7865765SRalf Baechle echo 43925985edcSLucas De Marchi echo ' These will be default as appropriate for a configured platform.' 440eed0eabdSPaul Burton echo 441eed0eabdSPaul Burton echo ' If you are targeting a system supported by generic kernels you may' 442eed0eabdSPaul Burton echo ' configure the kernel for a given architecture target like so:' 443eed0eabdSPaul Burton echo 444eed0eabdSPaul Burton echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 445eed0eabdSPaul Burton echo 446cccd0b9aSJames Hogan echo ' Where BOARDS is some subset of the following:' 447cccd0b9aSJames Hogan for board in $(sort $(BOARDS)); do echo " $${board}"; done 448cccd0b9aSJames Hogan echo 449cccd0b9aSJames Hogan echo ' Specifically the following generic default configurations are' 450cccd0b9aSJames Hogan echo ' supported:' 451cccd0b9aSJames Hogan echo 452cccd0b9aSJames Hogan $(foreach cfg,$(generic_defconfigs), 453cccd0b9aSJames Hogan printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 454cccd0b9aSJames Hogan echo 455cccd0b9aSJames Hogan echo ' The following legacy default configurations have been converted to' 456cccd0b9aSJames Hogan echo ' generic and can still be used:' 457cccd0b9aSJames Hogan echo 458cccd0b9aSJames Hogan $(foreach cfg,$(sort $(legacy_defconfigs)), 459cccd0b9aSJames Hogan printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 460cccd0b9aSJames Hogan echo 461eed0eabdSPaul Burton echo ' Otherwise, the following default configurations are available:' 462e7865765SRalf Baechleendef 463eed0eabdSPaul Burton 464eed0eabdSPaul Burtongeneric_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 465eed0eabdSPaul Burtongeneric_defconfigs := 466eed0eabdSPaul Burton 467eed0eabdSPaul Burton# 468eed0eabdSPaul Burton# If the user generates a generic kernel configuration without specifying a 469eed0eabdSPaul Burton# list of boards to include the config fragments for, default to including all 470eed0eabdSPaul Burton# available board config fragments. 471eed0eabdSPaul Burton# 472eed0eabdSPaul Burtonifeq ($(BOARDS),) 473eed0eabdSPaul BurtonBOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 474eed0eabdSPaul Burtonendif 475eed0eabdSPaul Burton 476eed0eabdSPaul Burton# 477eed0eabdSPaul Burton# Generic kernel configurations which merge generic_defconfig with the 478eed0eabdSPaul Burton# appropriate config fragments from arch/mips/configs/generic/, resulting in 479eed0eabdSPaul Burton# the ability to easily configure the kernel for a given architecture, 480eed0eabdSPaul Burton# endianness & set of boards without duplicating the needed configuration in 481eed0eabdSPaul Burton# hundreds of defconfig files. 482eed0eabdSPaul Burton# 483eed0eabdSPaul Burtondefine gen_generic_defconfigs 484eed0eabdSPaul Burton$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 485eed0eabdSPaul Burtontarget := $(bits)$(rev)$(filter el,$(endian))_defconfig 486eed0eabdSPaul Burtongeneric_defconfigs += $$(target) 487eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(bits)$(rev).config 488eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(endian).config 489eed0eabdSPaul Burton))) 490eed0eabdSPaul Burtonendef 491eed0eabdSPaul Burton 492eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 493eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 494eed0eabdSPaul Burton 495cccd0b9aSJames Hogandefine describe_generic_defconfig 496cccd0b9aSJames Hogan$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 497cccd0b9aSJames Hoganendef 498cccd0b9aSJames Hogan 499eed0eabdSPaul Burton.PHONY: $(generic_defconfigs) 500eed0eabdSPaul Burton$(generic_defconfigs): 501eed0eabdSPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 50227e0d4b0SPaul Burton -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 50327e0d4b0SPaul Burton grep -Ev '^#' 50427e0d4b0SPaul Burton $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 50527e0d4b0SPaul Burton $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 50627e0d4b0SPaul Burton KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 50727e0d4b0SPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 50827e0d4b0SPaul Burton $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 50927e0d4b0SPaul Burton "$(origin BOARDS)" $(BOARDS) 510337b775bSMarcin Nowakowski $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 511eed0eabdSPaul Burton 512eed0eabdSPaul Burton# 513eed0eabdSPaul Burton# Prevent generic merge_config rules attempting to merge single fragments 514eed0eabdSPaul Burton# 515eed0eabdSPaul Burton$(generic_config_dir)/%.config: ; 5163f5f0a44SPaul Burton 5173f5f0a44SPaul Burton# 518a4c2f797SPaul Burton# Prevent direct use of generic_defconfig, which is intended to be used as the 519a4c2f797SPaul Burton# basis of the various ISA-specific targets generated above. 520a4c2f797SPaul Burton# 521a4c2f797SPaul Burton.PHONY: generic_defconfig 522a4c2f797SPaul Burtongeneric_defconfig: 523a4c2f797SPaul Burton $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 524a4c2f797SPaul Burton $(Q)echo "used via an ISA-specific target from the following list:" 525a4c2f797SPaul Burton $(Q)echo 526a4c2f797SPaul Burton $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 527a4c2f797SPaul Burton $(Q)echo 528a4c2f797SPaul Burton $(Q)false 529a4c2f797SPaul Burton 530a4c2f797SPaul Burton# 5313f5f0a44SPaul Burton# Legacy defconfig compatibility - these targets used to be real defconfigs but 5323f5f0a44SPaul Burton# now that the boards have been converted to use the generic kernel they are 5333f5f0a44SPaul Burton# wrappers around the generic rules above. 5343f5f0a44SPaul Burton# 5356bce3deaSAlexandre Bellonilegacy_defconfigs += ocelot_defconfig 5366bce3deaSAlexandre Belloniocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 5376bce3deaSAlexandre Belloni 538318df806SJames Hoganlegacy_defconfigs += sead3_defconfig 539318df806SJames Hogansead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 5403f5f0a44SPaul Burton 541318df806SJames Hoganlegacy_defconfigs += sead3micro_defconfig 542318df806SJames Hogansead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 5430861aa12SZubair Lutfullah Kakakhel 544318df806SJames Hoganlegacy_defconfigs += xilfpga_defconfig 545318df806SJames Hoganxilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 546318df806SJames Hogan 547318df806SJames Hogan.PHONY: $(legacy_defconfigs) 548318df806SJames Hogan$(legacy_defconfigs): 549318df806SJames Hogan $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 550