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 16aadeec4dSMatt Redfearn $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs 17aadeec4dSMatt Redfearn 1804d8405eSMatt RedfearnKBUILD_DEFCONFIG := 32r2el_defconfig 19de0c1698SAdrian Bunk 201da177e4SLinus Torvalds# 211da177e4SLinus Torvalds# Select the object file format to substitute into the linker script. 221da177e4SLinus Torvalds# 231da177e4SLinus Torvaldsifdef CONFIG_CPU_LITTLE_ENDIAN 2417f690beSRalf Baechle32bit-tool-archpref = mipsel 2517f690beSRalf Baechle64bit-tool-archpref = mips64el 261da177e4SLinus Torvalds32bit-bfd = elf32-tradlittlemips 271da177e4SLinus Torvalds64bit-bfd = elf64-tradlittlemips 281da177e4SLinus Torvalds32bit-emul = elf32ltsmip 291da177e4SLinus Torvalds64bit-emul = elf64ltsmip 301da177e4SLinus Torvaldselse 3117f690beSRalf Baechle32bit-tool-archpref = mips 3217f690beSRalf Baechle64bit-tool-archpref = mips64 331da177e4SLinus Torvalds32bit-bfd = elf32-tradbigmips 341da177e4SLinus Torvalds64bit-bfd = elf64-tradbigmips 351da177e4SLinus Torvalds32bit-emul = elf32btsmip 361da177e4SLinus Torvalds64bit-emul = elf64btsmip 371da177e4SLinus Torvaldsendif 381da177e4SLinus Torvalds 39875d43e7SRalf Baechleifdef CONFIG_32BIT 4017f690beSRalf Baechletool-archpref = $(32bit-tool-archpref) 411da177e4SLinus TorvaldsUTS_MACHINE := mips 421da177e4SLinus Torvaldsendif 43875d43e7SRalf Baechleifdef CONFIG_64BIT 4417f690beSRalf Baechletool-archpref = $(64bit-tool-archpref) 451da177e4SLinus TorvaldsUTS_MACHINE := mips64 461da177e4SLinus Torvaldsendif 471da177e4SLinus Torvalds 4817f690beSRalf Baechleifneq ($(SUBARCH),$(ARCH)) 4917f690beSRalf Baechle ifeq ($(CROSS_COMPILE),) 503247989eSMaciej W. Rozycki CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-) 5117f690beSRalf Baechle endif 521da177e4SLinus Torvaldsendif 531da177e4SLinus Torvalds 547326c4e5SWu Zhangjinifdef CONFIG_FUNCTION_GRAPH_TRACER 557326c4e5SWu Zhangjin ifndef KBUILD_MCOUNT_RA_ADDRESS 567326c4e5SWu Zhangjin ifeq ($(call cc-option-yn,-mmcount-ra-address), y) 577326c4e5SWu Zhangjin cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS 587326c4e5SWu Zhangjin endif 597326c4e5SWu Zhangjin endif 607326c4e5SWu Zhangjinendif 611a4ba061SRalf Baechlecflags-y += $(call cc-option, -mno-check-zero-division) 6205e41404SRalf Baechle 638145095cSRalf Baechleifdef CONFIG_32BIT 641da177e4SLinus Torvaldsld-emul = $(32bit-emul) 651da177e4SLinus Torvaldsvmlinux-32 = vmlinux 661da177e4SLinus Torvaldsvmlinux-64 = vmlinux.64 6759b3e8e9SRalf Baechle 6859b3e8e9SRalf Baechlecflags-y += -mabi=32 698145095cSRalf Baechleendif 701da177e4SLinus Torvalds 718145095cSRalf Baechleifdef CONFIG_64BIT 728145095cSRalf Baechleld-emul = $(64bit-emul) 738145095cSRalf Baechlevmlinux-32 = vmlinux.32 748145095cSRalf Baechlevmlinux-64 = vmlinux 758145095cSRalf Baechle 7659b3e8e9SRalf Baechlecflags-y += -mabi=64 7759b3e8e9SRalf Baechleendif 7859b3e8e9SRalf Baechle 798496b401SRalf Baechleall-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) 808496b401SRalf Baechleall-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) 811b93b3c3SWu Zhangjinall-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds# 841da177e4SLinus Torvalds# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel 851da177e4SLinus Torvalds# code since it only slows down the whole thing. At some point we might make 861da177e4SLinus Torvalds# use of global pointer optimizations but their use of $28 conflicts with 871da177e4SLinus Torvalds# the current pointer optimization. 881da177e4SLinus Torvalds# 891da177e4SLinus Torvalds# The DECStation requires an ECOFF kernel for remote booting, other MIPS 901da177e4SLinus Torvalds# machines may also. Since BFD is incredibly buggy with respect to 911da177e4SLinus Torvalds# crossformat linking we rely on the elf2ecoff tool for format conversion. 921da177e4SLinus Torvalds# 931da177e4SLinus Torvaldscflags-y += -G 0 -mno-abicalls -fno-pic -pipe 946218cf44SRalf Baechlecflags-y += -msoft-float 959f83d839SThiemo SeuferLDFLAGS_vmlinux += -G 0 -static -n -nostdlib 966588169dSSam RavnborgKBUILD_AFLAGS_MODULE += -mlong-calls 976588169dSSam RavnborgKBUILD_CFLAGS_MODULE += -mlong-calls 981da177e4SLinus Torvalds 99e818fac5SMatt Redfearnifeq ($(CONFIG_RELOCATABLE),y) 100e818fac5SMatt RedfearnLDFLAGS_vmlinux += --emit-relocs 101e818fac5SMatt Redfearnendif 102e818fac5SMatt Redfearn 103842dfc11SManuel Lauss# 104842dfc11SManuel Lauss# pass -msoft-float to GAS if it supports it. However on newer binutils 105842dfc11SManuel Lauss# (specifically newer than 2.24.51.20140728) we then also need to explicitly 106842dfc11SManuel Lauss# set ".set hardfloat" in all files which manipulate floating point registers. 107842dfc11SManuel Lauss# 108842dfc11SManuel Laussifneq ($(call as-option,-Wa$(comma)-msoft-float,),) 109842dfc11SManuel Lauss cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float 110842dfc11SManuel Laussendif 111842dfc11SManuel Lauss 11272fbfb26SRalf Baechlecflags-y += -ffreestanding 11372fbfb26SRalf Baechle 114f425a6dcSThiemo Seufer# 115f425a6dcSThiemo Seufer# We explicitly add the endianness specifier if needed, this allows 116f425a6dcSThiemo Seufer# to compile kernels with a toolchain for the other endianness. We 117f425a6dcSThiemo Seufer# carefully avoid to add it redundantly because gcc 3.3/3.4 complains 118f425a6dcSThiemo Seufer# when fed the toolchain default! 119f425a6dcSThiemo Seufer# 120f9405412SRalf Baechle# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of 12159c51591SMichael Opdenacker# 2006-10-10 don't properly change the predefined symbols if -EB / -EL 122f9405412SRalf Baechle# are used, so we kludge that here. A bug has been filed at 123f9405412SRalf Baechle# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413. 124f9405412SRalf Baechle# 125c6d6f4c5SPaul Burton# clang doesn't suffer from these issues and our checks against -dumpmachine 126c6d6f4c5SPaul Burton# don't work so well when cross compiling, since without providing --target 127c6d6f4c5SPaul Burton# clang's output will be based upon the build machine. So for clang we simply 128c6d6f4c5SPaul Burton# unconditionally specify -EB or -EL as appropriate. 129c6d6f4c5SPaul Burton# 130c6d6f4c5SPaul Burtonifeq ($(cc-name),clang) 131c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB 132c6d6f4c5SPaul Burtoncflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL 133c6d6f4c5SPaul Burtonelse 134f9405412SRalf Baechleundef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ 135f9405412SRalf Baechleundef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ 136f9405412SRalf Baechlepredef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__ 137f9405412SRalf Baechlepredef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__ 138f9405412SRalf Baechlecflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be)) 139f9405412SRalf Baechlecflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le)) 140c6d6f4c5SPaul Burtonendif 141f425a6dcSThiemo Seufer 1429007c9a2SRalf Baechlecflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ 1439007c9a2SRalf Baechle -fno-omit-frame-pointer 144573deec0SJoshua Kinard 145573deec0SJoshua Kinard# Some distribution-specific toolchains might pass the -fstack-check 146573deec0SJoshua Kinard# option during the build, which adds a simple stack-probe at the beginning 147573deec0SJoshua Kinard# of every function. This stack probe is to ensure that there is enough 148573deec0SJoshua Kinard# stack space, else a SEGV is generated. This is not desirable for MIPS 149573deec0SJoshua Kinard# as kernel stacks are small, placed in unmapped virtual memory, and do not 150573deec0SJoshua Kinard# grow when overflowed. Especially on SGI IP27 platforms, this check will 151573deec0SJoshua Kinard# lead to a NULL pointer dereference in _raw_spin_lock_irq. 152573deec0SJoshua Kinard# 153573deec0SJoshua Kinard# In disassembly, this stack probe appears at the top of a function as: 154573deec0SJoshua Kinard# sd zero,<offset>(sp) 155573deec0SJoshua Kinard# Where <offset> is a negative value. 156573deec0SJoshua Kinard# 157573deec0SJoshua Kinardcflags-y += -fno-stack-check 158573deec0SJoshua Kinard 1591da177e4SLinus Torvalds# 1601da177e4SLinus Torvalds# CPU-dependent compiler/assembler options for optimization. 1611da177e4SLinus Torvalds# 16259b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R3000) += -march=r3000 16359b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX39XX) += -march=r3900 16459b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap 16559b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap 16659b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap 16759b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap 168344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap 169344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap 17021855a6eSMiodrag Diniccflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg 171344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap 172344ebf09SPaul Burtoncflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap 1737fd08ca5SLeonid Yegoshincflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap 17459b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap 175c9e321e0SRalf Baechlecflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \ 1761da177e4SLinus Torvalds -Wa,--trap 177542c1020SShinya Kuribayashicflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \ 178542c1020SShinya Kuribayashi -Wa,--trap 179c9e321e0SRalf Baechlecflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \ 1801da177e4SLinus Torvalds -Wa,--trap 18159b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ 1821da177e4SLinus Torvalds -Wa,--trap 183b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ 1841da177e4SLinus Torvalds -Wa,--trap 185b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx) 186b625cd4aSMaciej W. Rozyckicflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d) 18759b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap 18859b3e8e9SRalf Baechlecflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ 1891da177e4SLinus Torvalds -Wa,--trap 1907e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap 1917e69deb8SDavid Daneyifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON)))) 1927e69deb8SDavid Daneycflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon 1937e69deb8SDavid Daneyendif 194c9941158SDavid Daneycflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1 1951c7c4451SKevin Cernekeecflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap 1961da177e4SLinus Torvalds 19720d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,) 19820d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,) 19920d60d99SMaciej W. Rozyckicflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,) 20020d60d99SMaciej W. Rozycki 20132098ec7SMarkos Chandras# For smartmips configurations, there are hundreds of warnings due to ISA overrides 20232098ec7SMarkos Chandras# in assembly and header files. smartmips is only supported for MIPS32r1 onwards 20332098ec7SMarkos Chandras# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or 20432098ec7SMarkos Chandras# similar directives in the kernel will spam the build logs with the following warnings: 20532098ec7SMarkos Chandras# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater 20632098ec7SMarkos Chandras# or 20732098ec7SMarkos Chandras# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension 20832098ec7SMarkos Chandras# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has 20932098ec7SMarkos Chandras# been fixed properly. 2105306a545SMarkos Chandrasmips-cflags := $(cflags-y) 2115306a545SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y) 2125306a545SMarkos Chandrassmartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips) 2135306a545SMarkos Chandrascflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn 2145306a545SMarkos Chandrasendif 2155306a545SMarkos Chandrasifeq ($(CONFIG_CPU_MICROMIPS),y) 2165306a545SMarkos Chandrasmicromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips) 2175306a545SMarkos Chandrascflags-$(micromips-ase) += -mmicromips 2185306a545SMarkos Chandrasendif 21932098ec7SMarkos Chandrasifeq ($(CONFIG_CPU_HAS_MSA),y) 2205306a545SMarkos Chandrastoolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa) 22132098ec7SMarkos Chandrascflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA 22232098ec7SMarkos Chandrasendif 223bad50d79SJames Hogantoolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt) 224bad50d79SJames Hogancflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT 2258e4789d2SJames Hogan# For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which 2268e4789d2SJames Hogan# only warns 2278e4789d2SJames Hoganxpa-cflags-y := $(mips-cflags) 2288e4789d2SJames Hoganxpa-cflags-$(micromips-ase) += -mmicromips -Wa$(comma)-fatal-warnings 2298e4789d2SJames Hogantoolchain-xpa := $(call cc-option-yn,$(xpa-cflags-y) -mxpa) 2308e4789d2SJames Hogancflags-$(toolchain-xpa) += -DTOOLCHAIN_SUPPORTS_XPA 2314a5dc51eSMarcin Nowakowskitoolchain-crc := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc) 2324a5dc51eSMarcin Nowakowskicflags-$(toolchain-crc) += -DTOOLCHAIN_SUPPORTS_CRC 23332098ec7SMarkos Chandras 2341da177e4SLinus Torvalds# 2351da177e4SLinus Torvalds# Firmware support 2361da177e4SLinus Torvalds# 2370e2794b0SRalf Baechlelibs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/ 2380e2794b0SRalf Baechlelibs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/ 2390e2794b0SRalf Baechlelibs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/ 240231a35d3SThomas Bogendoerferlibs-y += arch/mips/fw/lib/ 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds# 243ebc89718SRalf Baechle# Kernel compression 244ebc89718SRalf Baechle# 245809769a8SDaniel Sabogalifdef CONFIG_SYS_SUPPORTS_ZBOOT 246ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinuz 247ebc89718SRalf Baechleelse 248ebc89718SRalf BaechleCOMPRESSION_FNAME = vmlinux 249ebc89718SRalf Baechleendif 250ebc89718SRalf Baechle 251ebc89718SRalf Baechle# 2521da177e4SLinus Torvalds# Board-dependent options and extra files 2531da177e4SLinus Torvalds# 254a436bb7bSMasahiro Yamadainclude arch/mips/Kbuild.platforms 2557ca5dc14SFlorian Fainelli 256abe77f90SRalf Baechleifdef CONFIG_PHYSICAL_START 257abe77f90SRalf Baechleload-y = $(CONFIG_PHYSICAL_START) 258abe77f90SRalf Baechleendif 2595fc9484fSPaul Burton 26027c524d1SMaciej W. Rozycki# Sign-extend the entry point to 64 bits if retrieved as a 32-bit number. 26127c524d1SMaciej W. Rozyckientry-y = $(shell $(OBJDUMP) -f vmlinux 2>/dev/null \ 26227c524d1SMaciej W. Rozycki | sed -n '/^start address / { \ 26327c524d1SMaciej W. Rozycki s/^.* //; \ 26427c524d1SMaciej W. Rozycki s/0x\([0-7].......\)$$/0x00000000\1/; \ 26527c524d1SMaciej W. Rozycki s/0x\(........\)$$/0xffffffff\1/; p }') 266abe77f90SRalf Baechle 267384740dcSRalf Baechlecflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic 2681da177e4SLinus Torvaldsdrivers-$(CONFIG_PCI) += arch/mips/pci/ 2691da177e4SLinus Torvalds 270adff90a9SFranck Bui-Huu# 271adff90a9SFranck Bui-Huu# Automatically detect the build format. By default we choose 272adff90a9SFranck Bui-Huu# the elf format according to the load address. 273adff90a9SFranck Bui-Huu# We can always force a build with a 64-bits symbol format by 274054c51b4SFranck Bui-Huu# passing 'KBUILD_SYM32=no' option to the make's command line. 275adff90a9SFranck Bui-Huu# 276adff90a9SFranck Bui-Huuifdef CONFIG_64BIT 277054c51b4SFranck Bui-Huu ifndef KBUILD_SYM32 278adff90a9SFranck Bui-Huu ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0) 279054c51b4SFranck Bui-Huu KBUILD_SYM32 = y 280adff90a9SFranck Bui-Huu endif 281adff90a9SFranck Bui-Huu endif 282adff90a9SFranck Bui-Huu 28320d60d99SMaciej W. Rozycki ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy) 284054c51b4SFranck Bui-Huu cflags-y += -msym32 -DKBUILD_64BIT_SYM32 28520d60d99SMaciej W. Rozycki else 28620d60d99SMaciej W. Rozycki ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y) 28720d60d99SMaciej W. Rozycki $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32) 288adff90a9SFranck Bui-Huu endif 289adff90a9SFranck Bui-Huu endif 290e58d95abSFranck Bui-Huuendif 291adff90a9SFranck Bui-Huu 292222d394dSSam RavnborgKBUILD_AFLAGS += $(cflags-y) 29351b563fcSSam RavnborgKBUILD_CFLAGS += $(cflags-y) 294f7fc237eSMichal MarekKBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) 295f7fc237eSMichal MarekKBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0) 2961da177e4SLinus Torvalds 2973185557dSJames Hoganbootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \ 298cf2a5e0bSPaul Burton VMLINUX_ENTRY_ADDRESS=$(entry-y) \ 299436c6a44SPaul Burton PLATFORM="$(platform-y)" \ 300436c6a44SPaul Burton ITS_INPUTS="$(its-y)" 301eed0eabdSPaul Burtonifdef CONFIG_32BIT 302eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=32 303eed0eabdSPaul Burtonendif 304eed0eabdSPaul Burtonifdef CONFIG_64BIT 305eed0eabdSPaul Burtonbootvars-y += ADDR_BITS=64 306eed0eabdSPaul Burtonendif 3073185557dSJames Hogan 308866b6a89SCorey Minyard# This is required to get dwarf unwinding tables into .debug_frame 309866b6a89SCorey Minyard# instead of .eh_frame so we don't discard them. 310866b6a89SCorey MinyardKBUILD_CFLAGS += -fno-asynchronous-unwind-tables 311866b6a89SCorey Minyard 3121da177e4SLinus TorvaldsLDFLAGS += -m $(ld-emul) 3131da177e4SLinus Torvalds 31459b3e8e9SRalf Baechleifdef CONFIG_MIPS 315a0f97e06SSam RavnborgCHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \ 31648c35b2dSAlexey Dobriyan egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \ 31773d8f99cSAaro Koskinen sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g') 31859b3e8e9SRalf Baechleendif 31959b3e8e9SRalf Baechle 3201da177e4SLinus TorvaldsOBJCOPYFLAGS += --remove-section=.reginfo 3211da177e4SLinus Torvalds 322957b369cSThomas Gleixnerhead-y := arch/mips/kernel/head.o 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvaldslibs-y += arch/mips/lib/ 325593d33feSRalf Baechlelibs-y += arch/mips/math-emu/ 3261da177e4SLinus Torvalds 3279aeb404bSSam Ravnborg# See arch/mips/Kbuild for content of core part of the kernel 3289aeb404bSSam Ravnborgcore-y += arch/mips/ 3291da177e4SLinus Torvalds 3304a5dc51eSMarcin Nowakowskidrivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/ 3311da177e4SLinus Torvaldsdrivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/ 3321da177e4SLinus Torvalds 333363c55caSWu Zhangjin# suspend and hibernation support 334363c55caSWu Zhangjindrivers-$(CONFIG_PM) += arch/mips/power/ 335363c55caSWu Zhangjin 33638d2d649SJames Hogan# boot image targets (arch/mips/boot/) 33738d2d649SJames Hoganboot-y := vmlinux.bin 33838d2d649SJames Hoganboot-y += vmlinux.ecoff 33938d2d649SJames Hoganboot-y += vmlinux.srec 3404defe455SJames Hoganifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0) 3414defe455SJames Hoganboot-y += uImage 3429d6b80faSMarkos Chandrasboot-y += uImage.bin 3439d6b80faSMarkos Chandrasboot-y += uImage.bz2 3444defe455SJames Hoganboot-y += uImage.gz 3459d6b80faSMarkos Chandrasboot-y += uImage.lzma 3469d6b80faSMarkos Chandrasboot-y += uImage.lzo 3474defe455SJames Hoganendif 348cf2a5e0bSPaul Burtonboot-y += vmlinux.itb 349cf2a5e0bSPaul Burtonboot-y += vmlinux.gz.itb 350cf2a5e0bSPaul Burtonboot-y += vmlinux.bz2.itb 351cf2a5e0bSPaul Burtonboot-y += vmlinux.lzma.itb 352cf2a5e0bSPaul Burtonboot-y += vmlinux.lzo.itb 35338d2d649SJames Hogan 35438d2d649SJames Hogan# compressed boot image targets (arch/mips/boot/compressed/) 35538d2d649SJames Hoganbootz-y := vmlinuz 35638d2d649SJames Hoganbootz-y += vmlinuz.bin 35738d2d649SJames Hoganbootz-y += vmlinuz.ecoff 35838d2d649SJames Hoganbootz-y += vmlinuz.srec 359ccebb88aSMaarten ter Huurneifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0) 360ccebb88aSMaarten ter Huurnebootz-y += uzImage.bin 361ccebb88aSMaarten ter Huurneendif 36238d2d649SJames Hogan 3631f21d2bdSBrian Murphyifdef CONFIG_LASAT 3641f21d2bdSBrian Murphyrom.bin rom.sw: vmlinux 3653185557dSJames Hogan $(Q)$(MAKE) $(build)=arch/mips/lasat/image \ 3663185557dSJames Hogan $(bootvars-y) $@ 3671f21d2bdSBrian Murphyendif 3681f21d2bdSBrian Murphy 3691da177e4SLinus Torvalds# 3701da177e4SLinus Torvalds# Some machines like the Indy need 32-bit ELF binaries for booting purposes. 3711da177e4SLinus Torvalds# Other need ECOFF, so we build a 32-bit ELF binary for them which we then 3721da177e4SLinus Torvalds# convert to ECOFF using elf2ecoff. 3731da177e4SLinus Torvalds# 374007fbbeaSWu Zhangjinquiet_cmd_32 = OBJCOPY $@ 375007fbbeaSWu Zhangjin cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ 3761da177e4SLinus Torvaldsvmlinux.32: vmlinux 377007fbbeaSWu Zhangjin $(call cmd,32) 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds# 3801da177e4SLinus Torvalds# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit 3811da177e4SLinus Torvalds# ELF files from 32-bit files by conversion. 3821da177e4SLinus Torvalds# 383007fbbeaSWu Zhangjinquiet_cmd_64 = OBJCOPY $@ 384007fbbeaSWu Zhangjin cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ 3851da177e4SLinus Torvaldsvmlinux.64: vmlinux 386007fbbeaSWu Zhangjin $(call cmd,64) 3871da177e4SLinus Torvalds 3888496b401SRalf Baechleall: $(all-y) 3891da177e4SLinus Torvalds 39035eaa1e9SSam Ravnborg# boot 39138d2d649SJames Hogan$(boot-y): $(vmlinux-32) FORCE 3923185557dSJames Hogan $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \ 3933185557dSJames Hogan $(bootvars-y) arch/mips/boot/$@ 3941da177e4SLinus Torvalds 39526fca83aSFlorian Fainelliifdef CONFIG_SYS_SUPPORTS_ZBOOT 39635eaa1e9SSam Ravnborg# boot/compressed 39738d2d649SJames Hogan$(bootz-y): $(vmlinux-32) FORCE 39835eaa1e9SSam Ravnborg $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ 3993185557dSJames Hogan $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@ 40026fca83aSFlorian Fainellielse 40126fca83aSFlorian Fainellivmlinuz: FORCE 40226fca83aSFlorian Fainelli @echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled' 40326fca83aSFlorian Fainelli /bin/false 40426fca83aSFlorian Fainelliendif 40535eaa1e9SSam Ravnborg 40635eaa1e9SSam Ravnborg 407d745866eSSam RavnborgCLEAN_FILES += vmlinux.32 vmlinux.64 4081da177e4SLinus Torvalds 4097fafb068SAndrew Bresticker# device-trees 4107fafb068SAndrew Brestickercore-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ 4117fafb068SAndrew Bresticker 4127fafb068SAndrew Bresticker%.dtb %.dtb.S %.dtb.o: | scripts 4137fafb068SAndrew Bresticker $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ 4147fafb068SAndrew Bresticker 415c8d333dfSAndrew BrestickerPHONY += dtbs 416c8d333dfSAndrew Brestickerdtbs: scripts 4178c0b9ee8SAndrew Bresticker $(Q)$(MAKE) $(build)=arch/mips/boot/dts 418c8d333dfSAndrew Bresticker 419eb2236eaSAndrew BrestickerPHONY += dtbs_install 420eb2236eaSAndrew Brestickerdtbs_install: 421eb2236eaSAndrew Bresticker $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts 422e48ce6b8SAtsushi Nemoto 423e48ce6b8SAtsushi Nemotoarchprepare: 42444656fa0SDavid Daneyifdef CONFIG_MIPS32_N32 4258c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for N32' 426e48ce6b8SAtsushi Nemoto $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32" 427e48ce6b8SAtsushi Nemotoendif 428e48ce6b8SAtsushi Nemotoifdef CONFIG_MIPS32_O32 4298c9b23ffSArnd Bergmann @$(kecho) ' Checking missing-syscalls for O32' 430e3726304Smatt mooney $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32" 431e48ce6b8SAtsushi Nemotoendif 432e48ce6b8SAtsushi Nemoto 43359968d3bSRalf Baechleinstall: 43459968d3bSRalf Baechle $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) 435d9beeecaSRalf Baechleifdef CONFIG_SYS_SUPPORTS_ZBOOT 4361b93b3c3SWu Zhangjin $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) 437d9beeecaSRalf Baechleendif 43859968d3bSRalf Baechle $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) 43959968d3bSRalf Baechle $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) 44059968d3bSRalf Baechle 4411da177e4SLinus Torvaldsarchclean: 442d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot 443d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed 444aadeec4dSMatt Redfearn $(Q)$(MAKE) $(clean)=arch/mips/boot/tools 445d745866eSSam Ravnborg $(Q)$(MAKE) $(clean)=arch/mips/lasat 4461da177e4SLinus Torvalds 447e7865765SRalf Baechledefine archhelp 44859968d3bSRalf Baechle echo ' install - install kernel into $(INSTALL_PATH)' 449e7865765SRalf Baechle echo ' vmlinux.ecoff - ECOFF boot image' 450e7865765SRalf Baechle echo ' vmlinux.bin - Raw binary boot image' 451e7865765SRalf Baechle echo ' vmlinux.srec - SREC boot image' 45278931652SJoshua Kinard echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)' 4531b93b3c3SWu Zhangjin echo ' vmlinuz - Compressed boot(zboot) image' 4541b93b3c3SWu Zhangjin echo ' vmlinuz.ecoff - ECOFF zboot image' 4551b93b3c3SWu Zhangjin echo ' vmlinuz.bin - Raw binary zboot image' 4561b93b3c3SWu Zhangjin echo ' vmlinuz.srec - SREC zboot image' 4574defe455SJames Hogan echo ' uImage - U-Boot image' 4589d6b80faSMarkos Chandras echo ' uImage.bin - U-Boot image (uncompressed)' 4599d6b80faSMarkos Chandras echo ' uImage.bz2 - U-Boot image (bz2)' 4604defe455SJames Hogan echo ' uImage.gz - U-Boot image (gzip)' 4619d6b80faSMarkos Chandras echo ' uImage.lzma - U-Boot image (lzma)' 4629d6b80faSMarkos Chandras echo ' uImage.lzo - U-Boot image (lzo)' 463ccebb88aSMaarten ter Huurne echo ' uzImage.bin - U-Boot image (self-extracting)' 464c8d333dfSAndrew Bresticker echo ' dtbs - Device-tree blobs for enabled boards' 465eb2236eaSAndrew Bresticker echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 466e7865765SRalf Baechle echo 46725985edcSLucas De Marchi echo ' These will be default as appropriate for a configured platform.' 468eed0eabdSPaul Burton echo 469eed0eabdSPaul Burton echo ' If you are targeting a system supported by generic kernels you may' 470eed0eabdSPaul Burton echo ' configure the kernel for a given architecture target like so:' 471eed0eabdSPaul Burton echo 472eed0eabdSPaul Burton echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">' 473eed0eabdSPaul Burton echo 474cccd0b9aSJames Hogan echo ' Where BOARDS is some subset of the following:' 475cccd0b9aSJames Hogan for board in $(sort $(BOARDS)); do echo " $${board}"; done 476cccd0b9aSJames Hogan echo 477cccd0b9aSJames Hogan echo ' Specifically the following generic default configurations are' 478cccd0b9aSJames Hogan echo ' supported:' 479cccd0b9aSJames Hogan echo 480cccd0b9aSJames Hogan $(foreach cfg,$(generic_defconfigs), 481cccd0b9aSJames Hogan printf " %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);) 482cccd0b9aSJames Hogan echo 483cccd0b9aSJames Hogan echo ' The following legacy default configurations have been converted to' 484cccd0b9aSJames Hogan echo ' generic and can still be used:' 485cccd0b9aSJames Hogan echo 486cccd0b9aSJames Hogan $(foreach cfg,$(sort $(legacy_defconfigs)), 487cccd0b9aSJames Hogan printf " %-24s - Build $($(cfg)-y)\n" $(cfg);) 488cccd0b9aSJames Hogan echo 489eed0eabdSPaul Burton echo ' Otherwise, the following default configurations are available:' 490e7865765SRalf Baechleendef 491eed0eabdSPaul Burton 492eed0eabdSPaul Burtongeneric_config_dir = $(srctree)/arch/$(ARCH)/configs/generic 493eed0eabdSPaul Burtongeneric_defconfigs := 494eed0eabdSPaul Burton 495eed0eabdSPaul Burton# 496eed0eabdSPaul Burton# If the user generates a generic kernel configuration without specifying a 497eed0eabdSPaul Burton# list of boards to include the config fragments for, default to including all 498eed0eabdSPaul Burton# available board config fragments. 499eed0eabdSPaul Burton# 500eed0eabdSPaul Burtonifeq ($(BOARDS),) 501eed0eabdSPaul BurtonBOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config))) 502eed0eabdSPaul Burtonendif 503eed0eabdSPaul Burton 504eed0eabdSPaul Burton# 505eed0eabdSPaul Burton# Generic kernel configurations which merge generic_defconfig with the 506eed0eabdSPaul Burton# appropriate config fragments from arch/mips/configs/generic/, resulting in 507eed0eabdSPaul Burton# the ability to easily configure the kernel for a given architecture, 508eed0eabdSPaul Burton# endianness & set of boards without duplicating the needed configuration in 509eed0eabdSPaul Burton# hundreds of defconfig files. 510eed0eabdSPaul Burton# 511eed0eabdSPaul Burtondefine gen_generic_defconfigs 512eed0eabdSPaul Burton$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3), 513eed0eabdSPaul Burtontarget := $(bits)$(rev)$(filter el,$(endian))_defconfig 514eed0eabdSPaul Burtongeneric_defconfigs += $$(target) 515eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(bits)$(rev).config 516eed0eabdSPaul Burton$$(target): $(generic_config_dir)/$(endian).config 517eed0eabdSPaul Burton))) 518eed0eabdSPaul Burtonendef 519eed0eabdSPaul Burton 520eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el)) 521eed0eabdSPaul Burton$(eval $(call gen_generic_defconfigs,micro32,r2,eb el)) 522eed0eabdSPaul Burton 523cccd0b9aSJames Hogandefine describe_generic_defconfig 524cccd0b9aSJames Hogan$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1))))) 525cccd0b9aSJames Hoganendef 526cccd0b9aSJames Hogan 527eed0eabdSPaul Burton.PHONY: $(generic_defconfigs) 528eed0eabdSPaul Burton$(generic_defconfigs): 529eed0eabdSPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \ 53027e0d4b0SPaul Burton -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \ 53127e0d4b0SPaul Burton grep -Ev '^#' 53227e0d4b0SPaul Burton $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@ 53327e0d4b0SPaul Burton $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \ 53427e0d4b0SPaul Burton KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null 53527e0d4b0SPaul Burton $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \ 53627e0d4b0SPaul Burton $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \ 53727e0d4b0SPaul Burton "$(origin BOARDS)" $(BOARDS) 538337b775bSMarcin Nowakowski $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig 539eed0eabdSPaul Burton 540eed0eabdSPaul Burton# 541eed0eabdSPaul Burton# Prevent generic merge_config rules attempting to merge single fragments 542eed0eabdSPaul Burton# 543eed0eabdSPaul Burton$(generic_config_dir)/%.config: ; 5443f5f0a44SPaul Burton 5453f5f0a44SPaul Burton# 546a4c2f797SPaul Burton# Prevent direct use of generic_defconfig, which is intended to be used as the 547a4c2f797SPaul Burton# basis of the various ISA-specific targets generated above. 548a4c2f797SPaul Burton# 549a4c2f797SPaul Burton.PHONY: generic_defconfig 550a4c2f797SPaul Burtongeneric_defconfig: 551a4c2f797SPaul Burton $(Q)echo "generic_defconfig is not intended for direct use, but should instead be" 552a4c2f797SPaul Burton $(Q)echo "used via an ISA-specific target from the following list:" 553a4c2f797SPaul Burton $(Q)echo 554a4c2f797SPaul Burton $(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done 555a4c2f797SPaul Burton $(Q)echo 556a4c2f797SPaul Burton $(Q)false 557a4c2f797SPaul Burton 558a4c2f797SPaul Burton# 5593f5f0a44SPaul Burton# Legacy defconfig compatibility - these targets used to be real defconfigs but 5603f5f0a44SPaul Burton# now that the boards have been converted to use the generic kernel they are 5613f5f0a44SPaul Burton# wrappers around the generic rules above. 5623f5f0a44SPaul Burton# 5636bce3deaSAlexandre Bellonilegacy_defconfigs += ocelot_defconfig 5646bce3deaSAlexandre Belloniocelot_defconfig-y := 32r2el_defconfig BOARDS=ocelot 5656bce3deaSAlexandre Belloni 566318df806SJames Hoganlegacy_defconfigs += sead3_defconfig 567318df806SJames Hogansead3_defconfig-y := 32r2el_defconfig BOARDS=sead-3 5683f5f0a44SPaul Burton 569318df806SJames Hoganlegacy_defconfigs += sead3micro_defconfig 570318df806SJames Hogansead3micro_defconfig-y := micro32r2el_defconfig BOARDS=sead-3 5710861aa12SZubair Lutfullah Kakakhel 572318df806SJames Hoganlegacy_defconfigs += xilfpga_defconfig 573318df806SJames Hoganxilfpga_defconfig-y := 32r2el_defconfig BOARDS=xilfpga 574318df806SJames Hogan 575318df806SJames Hogan.PHONY: $(legacy_defconfigs) 576318df806SJames Hogan$(legacy_defconfigs): 577318df806SJames Hogan $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y) 578