blob: 93b170ea2480522b7e1fbc640b2347ff36e5fd19 [file] [log] [blame]
Sam Ravnborg74b469f2007-10-25 19:42:04 +02001# Unified Makefile for i386 and x86_64
2
Sam Ravnborg2266cfd2007-10-25 20:31:19 +02003# select defconfig based on actual architecture
Sam Ravnborgd746d642007-11-12 20:14:19 +01004ifeq ($(ARCH),x86)
David Woodhouseffee0de2012-12-20 21:51:55 +00005 ifeq ($(shell uname -m),x86_64)
6 KBUILD_DEFCONFIG := x86_64_defconfig
7 else
Sam Ravnborgd746d642007-11-12 20:14:19 +01008 KBUILD_DEFCONFIG := i386_defconfig
David Woodhouseffee0de2012-12-20 21:51:55 +00009 endif
Sam Ravnborgd746d642007-11-12 20:14:19 +010010else
11 KBUILD_DEFCONFIG := $(ARCH)_defconfig
12endif
Sam Ravnborg2266cfd2007-10-25 20:31:19 +020013
Matthias Kaehlckecc7bf5b2017-06-21 16:28:05 -070014# For gcc stack alignment is specified with -mpreferred-stack-boundary,
15# clang has the option -mstack-alignment for that purpose.
16ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
Matthias Kaehlcke0e389492017-08-16 17:47:40 -070017 cc_stack_align4 := -mpreferred-stack-boundary=2
18 cc_stack_align8 := -mpreferred-stack-boundary=3
19else ifneq ($(call cc-option, -mstack-alignment=16),)
20 cc_stack_align4 := -mstack-alignment=4
21 cc_stack_align8 := -mstack-alignment=8
Matthias Kaehlckecc7bf5b2017-06-21 16:28:05 -070022endif
23
David Woodhouse1c678da2014-01-08 11:21:20 +000024# How to compile the 16-bit code. Note we always compile for -march=i386;
25# that way we can complain to the user if the CPU is insufficient.
David Woodhousede3accd2014-01-29 12:16:47 +000026#
27# The -m16 option is supported by GCC >= 4.9 and clang >= 3.5. For
H. Peter Anvina9cfcce2014-06-04 13:16:48 -070028# older versions of GCC, include an *assembly* header to make sure that
29# gcc doesn't play any games behind our back.
30CODE16GCC_CFLAGS := -m32 -Wa,$(srctree)/arch/x86/boot/code16gcc.h
David Woodhousede3accd2014-01-29 12:16:47 +000031M16_CFLAGS := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
32
33REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -D__KERNEL__ \
34 -DDISABLE_BRANCH_PROFILING \
David Woodhouse1c678da2014-01-08 11:21:20 +000035 -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
David Woodhouse1c678da2014-01-08 11:21:20 +000036 -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
Matthias Kaehlckea736f342017-06-21 16:28:04 -070037 -mno-mmx -mno-sse
38
39REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
40REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
Matthias Kaehlckeae921692017-08-17 11:20:47 -070041REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), $(cc_stack_align4))
David Woodhouse1c678da2014-01-08 11:21:20 +000042export REALMODE_CFLAGS
43
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010044# BITS is used as extension for files which are available in a 32 bit
45# and a 64 bit version to simplify shared Makefiles.
46# e.g.: obj-y += foo_$(BITS).o
47export BITS
Sam Ravnborg74b469f2007-10-25 19:42:04 +020048
Kees Cooka0215062013-07-08 09:15:17 -070049ifdef CONFIG_X86_NEED_RELOCS
50 LDFLAGS_vmlinux := --emit-relocs
51endif
52
Andy Lutomirskib2c51102015-07-21 09:27:18 -070053#
54# Prevent GCC from generating any FP code by mistake.
55#
56# This must happen before we try the -mpreferred-stack-boundary, see:
57#
58# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383
59#
60KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow
61KBUILD_CFLAGS += $(call cc-option,-mno-avx,)
62
Sam Ravnborgd746d642007-11-12 20:14:19 +010063ifeq ($(CONFIG_X86_32),y)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010064 BITS := 32
Andreas Herrmann8c6531f2007-11-19 23:58:57 +010065 UTS_MACHINE := i386
Sam Ravnborg4ba7e5c2008-01-30 13:32:23 +010066 CHECKFLAGS += -D__i386__
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010067
Sam Ravnborg4ba7e5c2008-01-30 13:32:23 +010068 biarch := $(call cc-option,-m32)
69 KBUILD_AFLAGS += $(biarch)
70 KBUILD_CFLAGS += $(biarch)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010071
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010072 KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
73
Andrew Boie484d90e2012-08-10 11:49:06 -070074 # Never want PIC in a 32-bit kernel, prevent breakage with GCC built
75 # with nonstandard options
76 KBUILD_CFLAGS += -fno-pic
77
Matthias Kaehlckecc7bf5b2017-06-21 16:28:05 -070078 # Align the stack to the register width instead of using the default
79 # alignment of 16 bytes. This reduces stack usage and the number of
80 # alignment instructions.
Matthias Kaehlckeae921692017-08-17 11:20:47 -070081 KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align4))
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010082
83 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
84 # a lot more stack due to the lack of sharing of stacklots:
Frans Popc7bd0412009-07-23 20:56:27 +020085 KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
86 $(call cc-option,-fno-unit-at-a-time))
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010087
88 # CPU-specific tuning. Anything which can be shared with UML should go here.
Masahiro Yamadaa436bb72015-03-27 20:43:36 +090089 include arch/x86/Makefile_32.cpu
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010090 KBUILD_CFLAGS += $(cflags-y)
91
92 # temporary until string.h is fixed
93 KBUILD_CFLAGS += -ffreestanding
Sam Ravnborg74b469f2007-10-25 19:42:04 +020094else
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010095 BITS := 64
Andreas Herrmann8c6531f2007-11-19 23:58:57 +010096 UTS_MACHINE := x86_64
Sam Ravnborg0a6ef372008-01-30 13:32:20 +010097 CHECKFLAGS += -D__x86_64__ -m64
98
George Spelvin14262d62014-05-07 17:05:52 -040099 biarch := -m64
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100100 KBUILD_AFLAGS += -m64
101 KBUILD_CFLAGS += -m64
102
Ingo Molnarbe6cb022015-04-10 14:08:46 +0200103 # Align jump targets to 1 byte, not the default 16 bytes:
Matthias Kaehlcked89051f2017-04-13 10:26:09 -0700104 KBUILD_CFLAGS += $(call cc-option,-falign-jumps=1)
Ingo Molnarbe6cb022015-04-10 14:08:46 +0200105
Ingo Molnar52648e82015-05-17 07:56:54 +0200106 # Pack loops tightly as well:
Matthias Kaehlcked89051f2017-04-13 10:26:09 -0700107 KBUILD_CFLAGS += $(call cc-option,-falign-loops=1)
Ingo Molnar52648e82015-05-17 07:56:54 +0200108
Rasmus Villemoes5c630082014-09-10 18:05:39 +0200109 # Don't autogenerate traditional x87 instructions
Behan Webster8f2dd672014-04-21 22:40:27 -0700110 KBUILD_CFLAGS += $(call cc-option,-mno-80387)
111 KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
H. Peter Anvin5551a342013-11-20 13:31:49 -0800112
Greg Hackmann5acb60f2015-07-23 10:40:57 -0700113 KBUILD_CFLAGS += -fno-pic
114
Matthias Kaehlckecc7bf5b2017-06-21 16:28:05 -0700115 # By default gcc and clang use a stack alignment of 16 bytes for x86.
116 # However the standard kernel entry on x86-64 leaves the stack on an
117 # 8-byte boundary. If the compiler isn't informed about the actual
118 # alignment it will generate extra alignment instructions for the
119 # default alignment which keep the stack *mis*aligned.
120 # Furthermore an alignment to the register width reduces stack usage
121 # and the number of alignment instructions.
Matthias Kaehlckeae921692017-08-17 11:20:47 -0700122 KBUILD_CFLAGS += $(call cc-option,$(cc_stack_align8))
H.J. Lud9b0cde92012-05-29 14:31:23 -0700123
H.J. Lud9ee948d2014-12-17 18:05:29 -0800124 # Use -mskip-rax-setup if supported.
125 KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
126
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100127 # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
128 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
129 cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
130
131 cflags-$(CONFIG_MCORE2) += \
132 $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
Tobias Doerffel366d19e2009-08-21 23:06:23 +0200133 cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
134 $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100135 cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
136 KBUILD_CFLAGS += $(cflags-y)
137
138 KBUILD_CFLAGS += -mno-red-zone
139 KBUILD_CFLAGS += -mcmodel=kernel
140
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100141 # -funit-at-a-time shrinks the kernel .text considerably
142 # unfortunately it makes reading oopses harder.
143 KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
144
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100145 # this works around some issues with generating unwind tables in older gccs
146 # newer gccs do it by default
Jan-Simon Möllerfd2d0a12013-10-20 00:36:47 +0200147 KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args)
Tejun Heo5d707e92009-02-09 22:17:39 +0900148endif
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100149
H. Peter Anvin0bf62762012-02-27 14:09:10 -0800150ifdef CONFIG_X86_X32
151 x32_ld_ok := $(call try-run,\
152 /bin/echo -e '1: .quad 1b' | \
Jean Delvareb1e0d8b2012-10-02 16:42:36 +0200153 $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" - && \
H. Peter Anvin0bf62762012-02-27 14:09:10 -0800154 $(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
155 $(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
Ingo Molnar8bd69c22012-02-28 10:35:06 +0100156 ifeq ($(x32_ld_ok),y)
157 CONFIG_X86_X32_ABI := y
158 KBUILD_AFLAGS += -DCONFIG_X86_X32_ABI
159 KBUILD_CFLAGS += -DCONFIG_X86_X32_ABI
160 else
161 $(warning CONFIG_X86_X32 enabled but no binutils support)
162 endif
H. Peter Anvin0bf62762012-02-27 14:09:10 -0800163endif
164export CONFIG_X86_X32_ABI
165
Vegard Nossumdfec0722008-04-04 00:51:41 +0200166# Don't unroll struct assignments with kmemcheck enabled
167ifeq ($(CONFIG_KMEMCHECK),y)
168 KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
169endif
170
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100171# Stackpointer is addressed different for 32 bit and 64 bit x86
172sp-$(CONFIG_X86_32) := esp
173sp-$(CONFIG_X86_64) := rsp
174
Andy Lutomirski7b956f02015-10-05 17:47:57 -0700175# do binutils support CFI?
176cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
177# is .cfi_signal_frame supported too?
178cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
179cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1)
180
H. Peter Anvind7acb922010-10-13 16:00:29 -0700181# does binutils support specific instructions?
182asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
Jan Beulich75aaf4c2015-01-23 08:29:50 +0000183asinstr += $(call as-instr,pshufb %xmm0$(comma)%xmm0,-DCONFIG_AS_SSSE3=1)
Jan Beulich06325192014-02-27 08:47:02 +0000184asinstr += $(call as-instr,crc32l %eax$(comma)%eax,-DCONFIG_AS_CRC32=1)
Jim Kukunasea4d26a2012-05-22 13:54:04 +1000185avx_instr := $(call as-instr,vxorps %ymm0$(comma)%ymm1$(comma)%ymm2,-DCONFIG_AS_AVX=1)
Jim Kukunas70567412012-11-08 13:47:44 -0800186avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1)
Gayatri Kammelae0a491c2016-08-12 18:03:19 -0700187avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1)
time38b6b72015-09-10 15:27:26 -0700188sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1)
189sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1)
H. Peter Anvind7acb922010-10-13 16:00:29 -0700190
Gayatri Kammelae0a491c2016-08-12 18:03:19 -0700191KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
192KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100193
194LDFLAGS := -m elf_$(UTS_MACHINE)
Sam Ravnborg25dfeeb2008-01-30 13:32:21 +0100195
H.J. Lu678b4052018-03-19 13:57:46 -0700196#
197# The 64-bit kernel must be aligned to 2MB. Pass -z max-page-size=0x200000 to
198# the linker to force 2MB page size regardless of the default page size used
199# by the linker.
200#
201ifdef CONFIG_X86_64
202LDFLAGS += $(call ld-option, -z max-page-size=0x200000)
203endif
204
Sam Ravnborg25dfeeb2008-01-30 13:32:21 +0100205# Speed up the build
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100206KBUILD_CFLAGS += -pipe
Sam Ravnborg25dfeeb2008-01-30 13:32:21 +0100207# Workaround for a gcc prelease that unfortunately was shipped in a suse release
208KBUILD_CFLAGS += -Wno-sign-compare
209#
210KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100211
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100212KBUILD_CFLAGS += $(mflags-y)
213KBUILD_AFLAGS += $(mflags-y)
214
David Woodhouse2bb5de42018-01-11 21:46:25 +0000215# Avoid indirect branches in kernel to deal with Spectre
216ifdef CONFIG_RETPOLINE
David Woodhouse6123a6b2018-02-19 10:50:57 +0000217 RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
218 RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
219
220 RETPOLINE_CFLAGS += $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))
David Woodhouse2bb5de42018-01-11 21:46:25 +0000221 ifneq ($(RETPOLINE_CFLAGS),)
222 KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -DRETPOLINE
David Woodhouse2bb5de42018-01-11 21:46:25 +0000223 endif
224endif
225
Michal Marek3ce9e532012-10-15 21:16:56 +0200226archscripts: scripts_basic
H. Peter Anvin6520fe52012-05-08 21:22:24 +0300227 $(Q)$(MAKE) $(build)=arch/x86/tools relocs
228
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100229###
H. Peter Anvin303395a2011-11-11 16:07:41 -0800230# Syscall table generation
231
232archheaders:
Ingo Molnar1f57d5d2015-06-03 18:36:41 +0200233 $(Q)$(MAKE) $(build)=arch/x86/entry/syscalls all
H. Peter Anvin303395a2011-11-11 16:07:41 -0800234
Vivek Goyal8fc5b4d2014-08-08 14:26:02 -0700235archprepare:
Vivek Goyal74ca3172014-08-29 15:18:46 -0700236ifeq ($(CONFIG_KEXEC_FILE),y)
Vivek Goyal8fc5b4d2014-08-08 14:26:02 -0700237 $(Q)$(MAKE) $(build)=arch/x86/purgatory arch/x86/purgatory/kexec-purgatory.c
Vivek Goyal8fc5b4d2014-08-08 14:26:02 -0700238endif
239
H. Peter Anvin303395a2011-11-11 16:07:41 -0800240###
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100241# Kernel objects
242
Eric W. Biederman700efc12008-02-23 09:58:20 +0100243head-y := arch/x86/kernel/head_$(BITS).o
244head-y += arch/x86/kernel/head$(BITS).o
Luis R. Rodriguezf2d85292016-04-13 17:04:43 -0700245head-y += arch/x86/kernel/ebda.o
Luis R. Rodriguez8d152e72016-04-13 17:04:34 -0700246head-y += arch/x86/kernel/platform-quirks.o
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100247
248libs-y += arch/x86/lib/
249
Sam Ravnborgd1f0ae52009-04-15 21:34:55 +0200250# See arch/x86/Kbuild for content of core part of the kernel
251core-y += arch/x86/
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100252
253# drivers-y are linked after core-y
254drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
255drivers-$(CONFIG_PCI) += arch/x86/pci/
256
257# must be linked after kernel/
258drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
259
Rafael J. Wysockicf7700f2008-02-09 23:24:09 +0100260# suspend and hibernation support
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100261drivers-$(CONFIG_PM) += arch/x86/power/
Rafael J. Wysockicf7700f2008-02-09 23:24:09 +0100262
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100263drivers-$(CONFIG_FB) += arch/x86/video/
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100264
Borislav Petkov6c36dfe2015-08-12 18:29:45 +0200265drivers-$(CONFIG_RAS) += arch/x86/ras/
266
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100267####
268# boot loader support. Several targets are kept for legacy purposes
269
270boot := arch/x86/boot
271
H. Peter Anvin1648e4f2009-04-17 10:46:37 -0700272BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700273
274PHONY += bzImage $(BOOT_TARGETS)
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100275
276# Default kernel to build
277all: bzImage
278
279# KBUILD_IMAGE specify target image being built
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700280KBUILD_IMAGE := $(boot)/bzImage
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100281
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700282bzImage: vmlinux
Masami Hiramatsuca0e9ba2009-08-13 16:34:21 -0400283ifeq ($(CONFIG_X86_DECODER_SELFTEST),y)
284 $(Q)$(MAKE) $(build)=arch/x86/tools posttest
285endif
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100286 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
287 $(Q)mkdir -p $(objtree)/arch/$(UTS_MACHINE)/boot
Jan Beulich41b3eae2008-04-22 16:29:26 +0100288 $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/$(UTS_MACHINE)/boot/$@
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100289
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700290$(BOOT_TARGETS): vmlinux
291 $(Q)$(MAKE) $(build)=$(boot) $@
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100292
H. Peter Anvin1648e4f2009-04-17 10:46:37 -0700293PHONY += install
294install:
295 $(Q)$(MAKE) $(build)=$(boot) $@
296
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100297PHONY += vdso_install
298vdso_install:
Ingo Molnard603c8e2015-06-03 18:05:44 +0200299 $(Q)$(MAKE) $(build)=arch/x86/entry/vdso $@
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100300
301archclean:
302 $(Q)rm -rf $(objtree)/arch/i386
303 $(Q)rm -rf $(objtree)/arch/x86_64
304 $(Q)$(MAKE) $(clean)=$(boot)
Jarkko Sakkinenb2d668d2012-05-21 20:51:24 +0300305 $(Q)$(MAKE) $(clean)=arch/x86/tools
Michael Wellingb0108f92014-08-29 15:19:13 -0700306 $(Q)$(MAKE) $(clean)=arch/x86/purgatory
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100307
308define archhelp
Andi Kleen37f30e22008-01-30 13:32:49 +0100309 echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
310 echo ' install - Install kernel using'
Sam Ravnborgcaa27b62009-07-20 21:37:11 +0200311 echo ' (your) ~/bin/$(INSTALLKERNEL) or'
312 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
Andi Kleen37f30e22008-01-30 13:32:49 +0100313 echo ' install to $$(INSTALL_PATH) and run lilo'
314 echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
315 echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
316 echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
317 echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
318 echo ' bzdisk/fdimage*/isoimage also accept:'
319 echo ' FDARGS="..." arguments for the booted kernel'
320 echo ' FDINITRD=file initrd for the booted kernel'
Sam Ravnborg0a6ef372008-01-30 13:32:20 +0100321endef