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 17aadeec4dSMatt Redfearn $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 18aadeec4dSMatt Redfearn 1904d8405eSMatt RedfearnKBUILD_DEFCONFIG := 32r2el_defconfig 20de0c1698SAdrian Bunk 211da177e4SLinus Torvalds# 221da177e4SLinus Torvalds# Select the object file format to substitute into the linker script. 231da177e4SLinus Torvalds# 241da177e4SLinus Torvaldsifdef CONFIG_CPU_LITTLE_ENDIAN 2517f690beSRalf Baechle32bit-tool-archpref = mipsel 2617f690beSRalf Baechle64bit-tool-archpref = mips64el 271da177e4SLinus Torvalds32bit-bfd = elf32-tradlittlemips 281da177e4SLinus Torvalds64bit-bfd = elf64-tradlittlemips 291da177e4SLinus Torvalds32bit-emul = elf32ltsmip 301da177e4SLinus Torvalds64bit-emul = elf64ltsmip 311da177e4SLinus Torvaldselse 3217f690beSRalf Baechle32bit-tool-archpref = mips 3317f690beSRalf Baechle64bit-tool-archpref = mips64 341da177e4SLinus Torvalds32bit-bfd = elf32-tradbigmips 351da177e4SLinus Torvalds64bit-bfd = elf64-tradbigmips 361da177e4SLinus Torvalds32bit-emul = elf32btsmip 371da177e4SLinus Torvalds64bit-emul = elf64btsmip 381da177e4SLinus Torvaldsendif 391da177e4SLinus Torvalds 40875d43e7SRalf Baechleifdef CONFIG_32BIT 4117f690beSRalf Baechletool-archpref = $(32bit-tool-archpref) 421da177e4SLinus TorvaldsUTS_MACHINE := mips 431da177e4SLinus Torvaldsendif 44875d43e7SRalf Baechleifdef CONFIG_64BIT 4517f690beSRalf Baechletool-archpref = $(64bit-tool-archpref) 461da177e4SLinus TorvaldsUTS_MACHINE := mips64 471da177e4SLinus Torvaldsendif 481da177e4SLinus Torvalds 4917f690beSRalf Baechleifneq ($(SUBARCH),$(ARCH)) 5017f690beSRalf Baechle ifeq ($(CROSS_COMPILE),) 513247989eSMaciej W. Rozycki CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 5217f690beSRalf Baechle endif 531da177e4SLinus Torvaldsendif 541da177e4SLinus Torvalds 557326c4e5SWu Zhangjinifdef CONFIG_FUNCTION_GRAPH_TRACER 567326c4e5SWu Zhangjin ifndef KBUILD_MCOUNT_RA_ADDRESS 577326c4e5SWu Zhangjin ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 587326c4e5SWu Zhangjin cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 597326c4e5SWu Zhangjin endif 607326c4e5SWu Zhangjin endif 617326c4e5SWu Zhangjinendif 621a4ba061SRalf Baechlecflags-y += $(call cc-option, -mno-check-zero-division) 6305e41404SRalf Baechle 648145095cSRalf Baechleifdef CONFIG_32BIT 651da177e4SLinus Torvaldsld-emul = $(32bit-emul) 661da177e4SLinus Torvaldsvmlinux-32 = vmlinux 671da177e4SLinus Torvaldsvmlinux-64 = vmlinux.64 6859b3e8e9SRalf Baechle 6959b3e8e9SRalf Baechlecflags-y += -mabi=32 708145095cSRalf Baechleendif 711da177e4SLinus Torvalds 728145095cSRalf Baechleifdef CONFIG_64BIT 738145095cSRalf Baechleld-emul = $(64bit-emul) 748145095cSRalf Baechlevmlinux-32 = vmlinux.32 758145095cSRalf Baechlevmlinux-64 = vmlinux 768145095cSRalf Baechle 7759b3e8e9SRalf Baechlecflags-y += -mabi=64 7859b3e8e9SRalf Baechleendif 7959b3e8e9SRalf Baechle 808496b401SRalf Baechleall-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 818496b401SRalf Baechleall-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 821b93b3c3SWu Zhangjinall-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds# 851da177e4SLinus Torvalds# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 861da177e4SLinus Torvalds# code since it only slows down the whole thing. At some point we might make 871da177e4SLinus Torvalds# use of global pointer optimizations but their use of $28 conflicts with 881da177e4SLinus Torvalds# the current pointer optimization. 891da177e4SLinus Torvalds# 901da177e4SLinus Torvalds# The DECStation requires an ECOFF kernel for remote booting, other MIPS 911da177e4SLinus Torvalds# machines may also. Since BFD is incredibly buggy with respect to 921da177e4SLinus Torvalds# crossformat linking we rely on the elf2ecoff tool for format conversion. 931da177e4SLinus Torvalds# 941da177e4SLinus Torvaldscflags-y += -G 0 -mno-abicalls -fno-pic -pipe 956218cf44SRalf Baechlecflags-y += -msoft-float 969f83d839SThiemo SeuferLDFLAGS_vmlinux += -G 0 -static -n -nostdlib 976588169dSSam RavnborgKBUILD_AFLAGS_MODULE += -mlong-calls 986588169dSSam RavnborgKBUILD_CFLAGS_MODULE += -mlong-calls 991da177e4SLinus Torvalds 100e818fac5SMatt Redfearnifeq ($(CONFIG_RELOCATABLE),y) 101e818fac5SMatt RedfearnLDFLAGS_vmlinux += --emit-relocs 102e818fac5SMatt Redfearnendif 103e818fac5SMatt Redfearn 104842dfc11SManuel Lauss# 105842dfc11SManuel Lauss# pass -msoft-float to GAS if it supports it. However on newer binutils 106842dfc11SManuel Lauss# (specifically newer than 2.24.51.20140728) we then also need to explicitly 107842dfc11SManuel Lauss# set ".set hardfloat" in all files which manipulate floating point registers. 108842dfc11SManuel Lauss# 109842dfc11SManuel Laussifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 110842dfc11SManuel Lauss cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 111842dfc11SManuel Laussendif 112842dfc11SManuel Lauss 11372fbfb26SRalf Baechlecflags-y += -ffreestanding 11472fbfb26SRalf Baechle 115f425a6dcSThiemo Seufer# 116f425a6dcSThiemo Seufer# We explicitly add the endianness specifier if needed, this allows 117f425a6dcSThiemo Seufer# to compile kernels with a toolchain for the other endianness. We 118f425a6dcSThiemo Seufer# carefully avoid to add it redundantly because gcc 3.3/3.4 complains 119f425a6dcSThiemo Seufer# when fed the toolchain default! 120f425a6dcSThiemo Seufer# 121f9405412SRalf Baechle# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of 12259c51591SMichael Opdenacker# 2006-10-10 don't properly change the predefined symbols if -EB / -EL 123f9405412SRalf Baechle# are used, so we kludge that here. A bug has been filed at 124f9405412SRalf Baechle# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. 125f9405412SRalf Baechle# 126c6d6f4c5SPaul Burton# clang doesn't suffer from these issues and our checks against -dumpmachine 127c6d6f4c5SPaul Burton# don't work so well when cross compiling, since without providing --target 128c6d6f4c5SPaul Burton# clang's output will be based upon the build machine. So for clang we simply 129c6d6f4c5SPaul Burton# unconditionally specify -EB or -EL as appropriate. 130c6d6f4c5SPaul Burton# 131c6d6f4c5SPaul Burtonifeq ($(cc-name),clang) 132c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 133c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 134c6d6f4c5SPaul Burtonelse 135f9405412SRalf Baechleundef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ 136f9405412SRalf Baechleundef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ 137f9405412SRalf Baechlepredef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ 138f9405412SRalf Baechlepredef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ 139f9405412SRalf Baechlecflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) 140f9405412SRalf Baechlecflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) 141c6d6f4c5SPaul Burtonendif 142f425a6dcSThiemo Seufer 1439007c9a2SRalf Baechlecflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 1449007c9a2SRalf Baechle -fno-omit-frame-pointer 145573deec0SJoshua Kinard 146573deec0SJoshua Kinard# Some distribution-specific toolchains might pass the -fstack-check 147573deec0SJoshua Kinard# option during the build, which adds a simple stack-probe at the beginning 148573deec0SJoshua Kinard# of every function. This stack probe is to ensure that there is enough 149573deec0SJoshua Kinard# stack space, else a SEGV is generated. This is not desirable for MIPS 150573deec0SJoshua Kinard# as kernel stacks are small, placed in unmapped virtual memory, and do not 151573deec0SJoshua Kinard# grow when overflowed. Especially on SGI IP27 platforms, this check will 152573deec0SJoshua Kinard# lead to a NULL pointer dereference in _raw_spin_lock_irq. 153573deec0SJoshua Kinard# 154573deec0SJoshua Kinard# In disassembly, this stack probe appears at the top of a function as: 155573deec0SJoshua Kinard# sd zero,<offset>(sp) 156573deec0SJoshua Kinard# Where <offset> is a negative value. 157573deec0SJoshua Kinard# 158573deec0SJoshua Kinardcflags-y += -fno-stack-check 159573deec0SJoshua Kinard 1601da177e4SLinus Torvalds# 1611da177e4SLinus Torvalds# CPU-dependent compiler/assembler options for optimization. 1621da177e4SLinus Torvalds# 16359b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R3000) += -march=r3000 16459b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX39XX) += -march=r3900 16559b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 16659b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 16759b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 16859b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 169344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 170344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 17121855a6eSMiodrag Diniccflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 172344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 173344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 1747fd08ca5SLeonid Yegoshincflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 17559b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 176c9e321e0SRalf Baechlecflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ 1771da177e4SLinus Torvalds -Wa,--trap 178542c1020SShinya Kuribayashicflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 179542c1020SShinya Kuribayashi -Wa,--trap 180c9e321e0SRalf Baechlecflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 1811da177e4SLinus Torvalds -Wa,--trap 18259b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 1831da177e4SLinus Torvalds -Wa,--trap 184b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 1851da177e4SLinus Torvalds -Wa,--trap 186b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 187b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 18859b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap 18959b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 1901da177e4SLinus Torvalds -Wa,--trap 1917e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 1927e69deb8SDavid Daneyifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 1937e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 1947e69deb8SDavid Daneyendif 195c9941158SDavid Daneycflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 1961c7c4451SKevin Cernekeecflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 1971da177e4SLinus Torvalds 19820d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 19920d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 20020d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 20120d60d99SMaciej W. Rozycki 20232098ec7SMarkos Chandras# For smartmips configurations, there are hundreds of warnings due to ISA overrides 20332098ec7SMarkos Chandras# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 20432098ec7SMarkos Chandras# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 20532098ec7SMarkos Chandras# similar directives in the kernel will spam the build logs with the following warnings: 20632098ec7SMarkos Chandras# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 20732098ec7SMarkos Chandras# or 20832098ec7SMarkos Chandras# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 20932098ec7SMarkos Chandras# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 21032098ec7SMarkos Chandras# been fixed properly. 2115306a545SMarkos Chandrasmips-cflags := $(cflags-y) 2125306a545SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 2135306a545SMarkos Chandrassmartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 2145306a545SMarkos Chandrascflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 2155306a545SMarkos Chandrasendif 2165306a545SMarkos Chandrasifeq ($(CONFIG_CPU_MICROMIPS),y) 2175306a545SMarkos Chandrasmicromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 2185306a545SMarkos Chandrascflags-$(micromips-ase) += -mmicromips 2195306a545SMarkos Chandrasendif 22032098ec7SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_MSA),y) 2215306a545SMarkos Chandrastoolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 22232098ec7SMarkos Chandrascflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 22332098ec7SMarkos Chandrasendif 224bad50d79SJames Hogantoolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 225bad50d79SJames Hogancflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 2268e4789d2SJames Hogan# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 2278e4789d2SJames Hogan# only warns 2288e4789d2SJames Hoganxpa-cflags-y := $(mips-cflags) 2298e4789d2SJames Hoganxpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 2308e4789d2SJames Hogantoolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 2318e4789d2SJames Hogancflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 2324a5dc51eSMarcin Nowakowskitoolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 2334a5dc51eSMarcin Nowakowskicflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 23432098ec7SMarkos Chandras 2351da177e4SLinus Torvalds# 2361da177e4SLinus Torvalds# Firmware support 2371da177e4SLinus Torvalds# 2380e2794b0SRalf Baechlelibs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 2390e2794b0SRalf Baechlelibs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 2400e2794b0SRalf Baechlelibs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 241231a35d3SThomas Bogendoerferlibs-y += arch/mips/fw/lib/ 2421da177e4SLinus Torvalds 2431da177e4SLinus Torvalds# 244ebc89718SRalf Baechle# Kernel compression 245ebc89718SRalf Baechle# 246809769a8SDaniel Sabogalifdef CONFIG_SYS_SUPPORTS_ZBOOT 247ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinuz 248ebc89718SRalf Baechleelse 249ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinux 250ebc89718SRalf Baechleendif 251ebc89718SRalf Baechle 252ebc89718SRalf Baechle# 2531da177e4SLinus Torvalds# Board-dependent options and extra files 2541da177e4SLinus Torvalds# 255a436bb7bSMasahiro Yamadainclude arch/mips/Kbuild.platforms 2567ca5dc14SFlorian Fainelli 257abe77f90SRalf Baechleifdef CONFIG_PHYSICAL_START 258abe77f90SRalf Baechleload-y = $(CONFIG_PHYSICAL_START) 259abe77f90SRalf Baechleendif 2605fc9484fSPaul Burton 261e245767aSPaul Burtonentry-y = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux) 262384740dcSRalf Baechlecflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 2631da177e4SLinus Torvaldsdrivers-$(CONFIG_PCI) += arch/mips/pci/ 2641da177e4SLinus Torvalds 265adff90a9SFranck Bui-Huu# 266adff90a9SFranck Bui-Huu# Automatically detect the build format. By default we choose 267adff90a9SFranck Bui-Huu# the elf format according to the load address. 268adff90a9SFranck Bui-Huu# We can always force a build with a 64-bits symbol format by 269054c51b4SFranck Bui-Huu# passing 'KBUILD_SYM32=no' option to the make's command line. 270adff90a9SFranck Bui-Huu# 271adff90a9SFranck Bui-Huuifdef CONFIG_64BIT 272054c51b4SFranck Bui-Huu ifndef KBUILD_SYM32 273adff90a9SFranck Bui-Huu ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 274054c51b4SFranck Bui-Huu KBUILD_SYM32 = y 275adff90a9SFranck Bui-Huu endif 276adff90a9SFranck Bui-Huu endif 277adff90a9SFranck Bui-Huu 27820d60d99SMaciej W. Rozycki ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 279054c51b4SFranck Bui-Huu cflags-y += -msym32 -DKBUILD_64BIT_SYM32 28020d60d99SMaciej W. Rozycki else 28120d60d99SMaciej W. Rozycki ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 28220d60d99SMaciej W. Rozycki $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 283adff90a9SFranck Bui-Huu endif 284adff90a9SFranck Bui-Huu endif 285e58d95abSFranck Bui-Huuendif 286adff90a9SFranck Bui-Huu 287222d394dSSam RavnborgKBUILD_AFLAGS += $(cflags-y) 28851b563fcSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 289f7fc237eSMichal MarekKBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) 290f7fc237eSMichal MarekKBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 2911da177e4SLinus Torvalds 2923185557dSJames Hoganbootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 293cf2a5e0bSPaul Burton VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 294436c6a44SPaul Burton PLATFORM="$(platform-y)" \ 295436c6a44SPaul Burton ITS_INPUTS="$(its-y)" 296eed0eabdSPaul Burtonifdef CONFIG_32BIT 297eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=32 298eed0eabdSPaul Burtonendif 299eed0eabdSPaul Burtonifdef CONFIG_64BIT 300eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=64 301eed0eabdSPaul Burtonendif 3023185557dSJames Hogan 303866b6a89SCorey Minyard# This is required to get dwarf unwinding tables into .debug_frame 304866b6a89SCorey Minyard# instead of .eh_frame so we don't discard them. 305866b6a89SCorey MinyardKBUILD_CFLAGS += -fno-asynchronous-unwind-tables 306866b6a89SCorey Minyard 307d503ac53SMasahiro YamadaKBUILD_LDFLAGS += -m $(ld-emul) 3081da177e4SLinus Torvalds 30959b3e8e9SRalf Baechleifdef CONFIG_MIPS 310a0f97e06SSam RavnborgCHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 31148c35b2dSAlexey Dobriyan egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 31273d8f99cSAaro Koskinen sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 31359b3e8e9SRalf Baechleendif 31459b3e8e9SRalf Baechle 3151da177e4SLinus TorvaldsOBJCOPYFLAGS += --remove-section=.reginfo 3161da177e4SLinus Torvalds 317957b369cSThomas Gleixnerhead-y := arch/mips/kernel/head.o 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvaldslibs-y += arch/mips/lib/ 320593d33feSRalf Baechlelibs-y += arch/mips/math-emu/ 3211da177e4SLinus Torvalds 3229aeb404bSSam Ravnborg# See arch/mips/Kbuild for content of core part of the kernel 3239aeb404bSSam Ravnborgcore-y += arch/mips/ 3241da177e4SLinus Torvalds 3254a5dc51eSMarcin Nowakowskidrivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/ 3261da177e4SLinus Torvaldsdrivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 3271da177e4SLinus Torvalds 328363c55caSWu Zhangjin# suspend and hibernation support 329363c55caSWu Zhangjindrivers-$(CONFIG_PM) += arch/mips/power/ 330363c55caSWu Zhangjin 33138d2d649SJames Hogan# boot image targets (arch/mips/boot/) 33238d2d649SJames Hoganboot-y := vmlinux.bin 33338d2d649SJames Hoganboot-y += vmlinux.ecoff 33438d2d649SJames Hoganboot-y += vmlinux.srec 3354defe455SJames Hoganifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 3364defe455SJames Hoganboot-y += uImage 3379d6b80faSMarkos Chandrasboot-y += uImage.bin 3389d6b80faSMarkos Chandrasboot-y += uImage.bz2 3394defe455SJames Hoganboot-y += uImage.gz 3409d6b80faSMarkos Chandrasboot-y += uImage.lzma 3419d6b80faSMarkos Chandrasboot-y += uImage.lzo 3424defe455SJames Hoganendif 343cf2a5e0bSPaul Burtonboot-y += vmlinux.itb 344cf2a5e0bSPaul Burtonboot-y += vmlinux.gz.itb 345cf2a5e0bSPaul Burtonboot-y += vmlinux.bz2.itb 346cf2a5e0bSPaul Burtonboot-y += vmlinux.lzma.itb 347cf2a5e0bSPaul Burtonboot-y += vmlinux.lzo.itb 34838d2d649SJames Hogan 34938d2d649SJames Hogan# compressed boot image targets (arch/mips/boot/compressed/) 35038d2d649SJames Hoganbootz-y := vmlinuz 35138d2d649SJames Hoganbootz-y += vmlinuz.bin 35238d2d649SJames Hoganbootz-y += vmlinuz.ecoff 35338d2d649SJames Hoganbootz-y += vmlinuz.srec 354ccebb88aSMaarten ter Huurneifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 355ccebb88aSMaarten ter Huurnebootz-y += uzImage.bin 356ccebb88aSMaarten ter Huurneendif 35738d2d649SJames Hogan 3581f21d2bdSBrian Murphyifdef CONFIG_LASAT 3591f21d2bdSBrian Murphyrom.bin rom.sw: vmlinux 3603185557dSJames Hogan $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ 3613185557dSJames Hogan $(bootvars-y) $@ 3621f21d2bdSBrian Murphyendif 3631f21d2bdSBrian Murphy 3641da177e4SLinus Torvalds# 3651da177e4SLinus Torvalds# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 3661da177e4SLinus Torvalds# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 3671da177e4SLinus Torvalds# convert to ECOFF using elf2ecoff. 3681da177e4SLinus Torvalds# 369007fbbeaSWu Zhangjinquiet_cmd_32 = OBJCOPY $@ 370007fbbeaSWu Zhangjin cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 3711da177e4SLinus Torvaldsvmlinux.32: vmlinux 372007fbbeaSWu Zhangjin $(call cmd,32) 3731da177e4SLinus Torvalds 3741da177e4SLinus Torvalds# 3751da177e4SLinus Torvalds# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 3761da177e4SLinus Torvalds# ELF files from 32-bit files by conversion. 3771da177e4SLinus Torvalds# 378007fbbeaSWu Zhangjinquiet_cmd_64 = OBJCOPY $@ 379007fbbeaSWu Zhangjin cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 3801da177e4SLinus Torvaldsvmlinux.64: vmlinux 381007fbbeaSWu Zhangjin $(call cmd,64) 3821da177e4SLinus Torvalds 3838496b401SRalf Baechleall: $(all-y) 3841da177e4SLinus Torvalds 38535eaa1e9SSam Ravnborg# boot 38638d2d649SJames Hogan$(boot-y): $(vmlinux-32) FORCE 3873185557dSJames Hogan $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 3883185557dSJames Hogan $(bootvars-y) arch/mips/boot/$@ 3891da177e4SLinus Torvalds 39026fca83aSFlorian Fainelliifdef CONFIG_SYS_SUPPORTS_ZBOOT 39135eaa1e9SSam Ravnborg# boot/compressed 39238d2d649SJames Hogan$(bootz-y): $(vmlinux-32) FORCE 39335eaa1e9SSam Ravnborg $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 3943185557dSJames Hogan $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ 39526fca83aSFlorian Fainellielse 39626fca83aSFlorian Fainellivmlinuz: FORCE 39726fca83aSFlorian Fainelli @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 39826fca83aSFlorian Fainelli /bin/false 39926fca83aSFlorian Fainelliendif 40035eaa1e9SSam Ravnborg 40135eaa1e9SSam Ravnborg 402d745866eSSam RavnborgCLEAN_FILES += vmlinux.32 vmlinux.64 4031da177e4SLinus Torvalds 4047fafb068SAndrew Bresticker# device-trees 4057fafb068SAndrew Brestickercore-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ 4067fafb068SAndrew Bresticker 4077fafb068SAndrew Bresticker%.dtb %.dtb.S %.dtb.o: | scripts 4087fafb068SAndrew Bresticker $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ 4097fafb068SAndrew Bresticker 410c8d333dfSAndrew BrestickerPHONY += dtbs 411c8d333dfSAndrew Brestickerdtbs: scripts 4128c0b9ee8SAndrew Bresticker $(Q)$(MAKE) $(build)=arch/mips/boot/dts 413c8d333dfSAndrew Bresticker 414eb2236eaSAndrew BrestickerPHONY += dtbs_install 415eb2236eaSAndrew Brestickerdtbs_install: 416eb2236eaSAndrew Bresticker $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts 417e48ce6b8SAtsushi Nemoto 418e48ce6b8SAtsushi Nemotoarchprepare: 41944656fa0SDavid Daneyifdef CONFIG_MIPS32_N32 4208c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for N32' 421e48ce6b8SAtsushi Nemoto $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 422e48ce6b8SAtsushi Nemotoendif 423e48ce6b8SAtsushi Nemotoifdef CONFIG_MIPS32_O32 4248c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for O32' 425e3726304Smatt mooney $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 426e48ce6b8SAtsushi Nemotoendif 427e48ce6b8SAtsushi Nemoto 42859968d3bSRalf Baechleinstall: 42959968d3bSRalf Baechle $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 430d9beeecaSRalf Baechleifdef CONFIG_SYS_SUPPORTS_ZBOOT 4311b93b3c3SWu Zhangjin $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 432d9beeecaSRalf Baechleendif 43359968d3bSRalf Baechle $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 43459968d3bSRalf Baechle $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 43559968d3bSRalf Baechle 4361da177e4SLinus Torvaldsarchclean: 437d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot 438d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 439aadeec4dSMatt Redfearn $(Q)$(MAKE) $(clean)=arch/mips/boot/tools 440d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/lasat 4411da177e4SLinus Torvalds 442e7865765SRalf Baechledefine archhelp 44359968d3bSRalf Baechle echo ' install - install kernel into $(INSTALL_PATH)' 444e7865765SRalf Baechle echo ' vmlinux.ecoff - ECOFF boot image' 445e7865765SRalf Baechle echo ' vmlinux.bin - Raw binary boot image' 446e7865765SRalf Baechle echo ' vmlinux.srec - SREC boot image' 44778931652SJoshua Kinard echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 4481b93b3c3SWu Zhangjin echo ' vmlinuz - Compressed boot(zboot) image' 4491b93b3c3SWu Zhangjin echo ' vmlinuz.ecoff - ECOFF zboot image' 4501b93b3c3SWu Zhangjin echo ' vmlinuz.bin - Raw binary zboot image' 4511b93b3c3SWu Zhangjin echo ' vmlinuz.srec - SREC zboot image' 4524defe455SJames Hogan echo ' uImage - U-Boot image' 4539d6b80faSMarkos Chandras echo ' uImage.bin - U-Boot image (uncompressed)' 4549d6b80faSMarkos Chandras echo ' uImage.bz2 - U-Boot image (bz2)' 4554defe455SJames Hogan echo ' uImage.gz - U-Boot image (gzip)' 4569d6b80faSMarkos Chandras echo ' uImage.lzma - U-Boot image (lzma)' 4579d6b80faSMarkos Chandras echo ' uImage.lzo - U-Boot image (lzo)' 458ccebb88aSMaarten ter Huurne echo ' uzImage.bin - U-Boot image (self-extracting)' 459c8d333dfSAndrew Bresticker echo ' dtbs - Device-tree blobs for enabled boards' 460eb2236eaSAndrew Bresticker echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 461e7865765SRalf Baechle echo 46225985edcSLucas De Marchi echo ' These will be default as appropriate for a configured platform.' 463eed0eabdSPaul Burton echo 464eed0eabdSPaul Burton echo ' If you are targeting a system supported by generic kernels you may' 465eed0eabdSPaul Burton echo ' configure the kernel for a given architecture target like so:' 466eed0eabdSPaul Burton echo 467eed0eabdSPaul Burton echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 468eed0eabdSPaul Burton echo 469cccd0b9aSJames Hogan echo ' Where BOARDS is some subset of the following:' 470cccd0b9aSJames Hogan for board in $(sort $(BOARDS)); do echo " $${board}"; done 471cccd0b9aSJames Hogan echo 472cccd0b9aSJames Hogan echo ' Specifically the following generic default configurations are' 473cccd0b9aSJames Hogan echo ' supported:' 474cccd0b9aSJames Hogan echo 475cccd0b9aSJames Hogan $(foreach cfg,$(generic_defconfigs), 476cccd0b9aSJames Hogan printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 477cccd0b9aSJames Hogan echo 478cccd0b9aSJames Hogan echo ' The following legacy default configurations have been converted to' 479cccd0b9aSJames Hogan echo ' generic and can still be used:' 480cccd0b9aSJames Hogan echo 481cccd0b9aSJames Hogan $(foreach cfg,$(sort $(legacy_defconfigs)), 482cccd0b9aSJames Hogan printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 483cccd0b9aSJames Hogan echo 484eed0eabdSPaul Burton echo ' Otherwise, the following default configurations are available:' 485e7865765SRalf Baechleendef 486eed0eabdSPaul Burton 487eed0eabdSPaul Burtongeneric_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 488eed0eabdSPaul Burtongeneric_defconfigs := 489eed0eabdSPaul Burton 490eed0eabdSPaul Burton# 491eed0eabdSPaul Burton# If the user generates a generic kernel configuration without specifying a 492eed0eabdSPaul Burton# list of boards to include the config fragments for, default to including all 493eed0eabdSPaul Burton# available board config fragments. 494eed0eabdSPaul Burton# 495eed0eabdSPaul Burtonifeq ($(BOARDS),) 496eed0eabdSPaul BurtonBOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 497eed0eabdSPaul Burtonendif 498eed0eabdSPaul Burton 499eed0eabdSPaul Burton# 500eed0eabdSPaul Burton# Generic kernel configurations which merge generic_defconfig with the 501eed0eabdSPaul Burton# appropriate config fragments from arch/mips/configs/generic/, resulting in 502eed0eabdSPaul Burton# the ability to easily configure the kernel for a given architecture, 503eed0eabdSPaul Burton# endianness & set of boards without duplicating the needed configuration in 504eed0eabdSPaul Burton# hundreds of defconfig files. 505eed0eabdSPaul Burton# 506eed0eabdSPaul Burtondefine gen_generic_defconfigs 507eed0eabdSPaul Burton$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 508eed0eabdSPaul Burtontarget := $(bits)$(rev)$(filter el,$(endian))_defconfig 509eed0eabdSPaul Burtongeneric_defconfigs += $$(target) 510eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(bits)$(rev).config 511eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(endian).config 512eed0eabdSPaul Burton))) 513eed0eabdSPaul Burtonendef 514eed0eabdSPaul Burton 515eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 516eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 517eed0eabdSPaul Burton 518cccd0b9aSJames Hogandefine describe_generic_defconfig 519cccd0b9aSJames Hogan$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 520cccd0b9aSJames Hoganendef 521cccd0b9aSJames Hogan 522eed0eabdSPaul Burton.PHONY: $(generic_defconfigs) 523eed0eabdSPaul Burton$(generic_defconfigs): 524eed0eabdSPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 52527e0d4b0SPaul Burton -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 52627e0d4b0SPaul Burton grep -Ev '^#' 52727e0d4b0SPaul Burton $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 52827e0d4b0SPaul Burton $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 52927e0d4b0SPaul Burton KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 53027e0d4b0SPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 53127e0d4b0SPaul Burton $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 53227e0d4b0SPaul Burton "$(origin BOARDS)" $(BOARDS) 533337b775bSMarcin Nowakowski $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 534eed0eabdSPaul Burton 535eed0eabdSPaul Burton# 536eed0eabdSPaul Burton# Prevent generic merge_config rules attempting to merge single fragments 537eed0eabdSPaul Burton# 538eed0eabdSPaul Burton$(generic_config_dir)/%.config: ; 5393f5f0a44SPaul Burton 5403f5f0a44SPaul Burton# 541a4c2f797SPaul Burton# Prevent direct use of generic_defconfig, which is intended to be used as the 542a4c2f797SPaul Burton# basis of the various ISA-specific targets generated above. 543a4c2f797SPaul Burton# 544a4c2f797SPaul Burton.PHONY: generic_defconfig 545a4c2f797SPaul Burtongeneric_defconfig: 546a4c2f797SPaul Burton $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 547a4c2f797SPaul Burton $(Q)echo "used via an ISA-specific target from the following list:" 548a4c2f797SPaul Burton $(Q)echo 549a4c2f797SPaul Burton $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 550a4c2f797SPaul Burton $(Q)echo 551a4c2f797SPaul Burton $(Q)false 552a4c2f797SPaul Burton 553a4c2f797SPaul Burton# 5543f5f0a44SPaul Burton# Legacy defconfig compatibility - these targets used to be real defconfigs but 5553f5f0a44SPaul Burton# now that the boards have been converted to use the generic kernel they are 5563f5f0a44SPaul Burton# wrappers around the generic rules above. 5573f5f0a44SPaul Burton# 5586bce3deaSAlexandre Bellonilegacy_defconfigs += ocelot_defconfig 5596bce3deaSAlexandre Belloniocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 5606bce3deaSAlexandre Belloni 561318df806SJames Hoganlegacy_defconfigs += sead3_defconfig 562318df806SJames Hogansead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 5633f5f0a44SPaul Burton 564318df806SJames Hoganlegacy_defconfigs += sead3micro_defconfig 565318df806SJames Hogansead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 5660861aa12SZubair Lutfullah Kakakhel 567318df806SJames Hoganlegacy_defconfigs += xilfpga_defconfig 568318df806SJames Hoganxilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 569318df806SJames Hogan 570318df806SJames Hogan.PHONY: $(legacy_defconfigs) 571318df806SJames Hogan$(legacy_defconfigs): 572318df806SJames Hogan $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 573