blob: 132d9c681d6ae275ca6129a20fee4b9e55487840 [file] [log] [blame]
Paul Mackerras14cf11a2005-09-26 16:04:21 +10001# This file is included by the global makefile so that you can add your own
2# architecture-specific flags and dependencies. Remember to do have actions
3# for "archclean" and "archdep" for cleaning up and making dependencies for
4# this architecture.
5#
6# This file is subject to the terms and conditions of the GNU General Public
7# License. See the file "COPYING" in the main directory of this archive
8# for more details.
9#
10# Copyright (C) 1994 by Linus Torvalds
11# Changes for PPC by Gary Thomas
12# Rewritten by Cort Dougan and Paul Mackerras
13#
14
Paul Mackerras14cf11a2005-09-26 16:04:21 +100015HAS_BIARCH := $(call cc-option-yn, -m32)
16
Paul Mackerras14cf11a2005-09-26 16:04:21 +100017# Set default 32 bits cross compilers for vdso and boot wrapper
18CROSS32_COMPILE ?=
19
20CROSS32CC := $(CROSS32_COMPILE)gcc
Paul Mackerras2bf11812006-09-27 22:47:03 +100021CROSS32AR := $(CROSS32_COMPILE)ar
Paul Mackerras14cf11a2005-09-26 16:04:21 +100022
23ifeq ($(HAS_BIARCH),y)
24ifeq ($(CROSS32_COMPILE),)
25CROSS32CC := $(CC) -m32
Segher Boessenkool8995ac82007-05-16 22:34:38 +100026CROSS32AR := GNUTARGET=elf32-powerpc $(AR)
Paul Mackerras14cf11a2005-09-26 16:04:21 +100027endif
28endif
29
Segher Boessenkool1976aef2008-06-08 09:42:52 +100030export CROSS32CC CROSS32AR
Paul Mackerras14cf11a2005-09-26 16:04:21 +100031
Adrian Bunkca786f82007-10-02 13:30:09 -070032ifeq ($(CROSS_COMPILE),)
Paul Mackerras8a5abdf2005-11-18 16:39:08 +110033KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
Adrian Bunkca786f82007-10-02 13:30:09 -070034else
35KBUILD_DEFCONFIG := ppc64_defconfig
36endif
Paul Mackerras8a5abdf2005-11-18 16:39:08 +110037
Paul Mackerras94b212c2005-11-16 13:38:21 +110038ifeq ($(CONFIG_PPC64),y)
Paul Mackerras14cf11a2005-09-26 16:04:21 +100039new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
40
41ifeq ($(new_nm),y)
42NM := $(NM) --synthetic
43endif
Anton Blancharda0588012013-09-23 12:04:53 +100044endif
Paul Mackerras14cf11a2005-09-26 16:04:21 +100045
Anton Blancharda0588012013-09-23 12:04:53 +100046ifeq ($(CONFIG_PPC64),y)
47ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
48OLDARCH := ppc64le
49else
50OLDARCH := ppc64
51endif
52else
53ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
54OLDARCH := ppcle
Paul Mackerras14cf11a2005-09-26 16:04:21 +100055else
Stephen Rothwellbbeb3f42005-09-27 13:51:59 +100056OLDARCH := ppc
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100057endif
Anton Blancharda0588012013-09-23 12:04:53 +100058endif
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100059
60# It seems there are times we use this Makefile without
61# including the config file, but this replicates the old behaviour
62ifeq ($(CONFIG_WORD_SIZE),)
63CONFIG_WORD_SIZE := 32
Paul Mackerras14cf11a2005-09-26 16:04:21 +100064endif
65
Stephen Rothwell190554d2005-10-13 16:14:15 +100066UTS_MACHINE := $(OLDARCH)
67
Ian Munsied72b0802013-09-23 12:05:11 +100068ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
Anton Blanchardf036b362013-09-23 12:05:13 +100069override CC += -mlittle-endian -mno-strict-align
Ian Munsied72b0802013-09-23 12:05:11 +100070override AS += -mlittle-endian
71override LD += -EL
72override CROSS32CC += -mlittle-endian
73override CROSS32AS += -mlittle-endian
74LDEMULATION := lppc
75GNUTARGET := powerpcle
76MULTIPLEWORD := -mno-multiple
Tony Breedsd3d35d92014-03-12 15:12:01 +110077KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
Ian Munsied72b0802013-09-23 12:05:11 +100078else
Michael Neuling924dd502013-11-21 14:59:07 +110079ifeq ($(call cc-option-yn,-mbig-endian),y)
Ian Munsied72b0802013-09-23 12:05:11 +100080override CC += -mbig-endian
81override AS += -mbig-endian
Michael Neuling924dd502013-11-21 14:59:07 +110082endif
Ian Munsied72b0802013-09-23 12:05:11 +100083override LD += -EB
84LDEMULATION := ppc
85GNUTARGET := powerpc
86MULTIPLEWORD := -mmultiple
87endif
88
Paul Mackerras14cf11a2005-09-26 16:04:21 +100089ifeq ($(HAS_BIARCH),y)
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100090override AS += -a$(CONFIG_WORD_SIZE)
Ian Munsied72b0802013-09-23 12:05:11 +100091override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION)
Stephen Rothwell2578bfa2007-09-21 10:16:20 +100092override CC += -m$(CONFIG_WORD_SIZE)
Ian Munsied72b0802013-09-23 12:05:11 +100093override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR)
Paul Mackerras14cf11a2005-09-26 16:04:21 +100094endif
95
Suzuki Poulose9c5f7d32011-12-14 22:58:12 +000096LDFLAGS_vmlinux-y := -Bstatic
97LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
98LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)
Paul Mackerras14cf11a2005-09-26 16:04:21 +100099
Anton Blanchard1fbe9cf2012-11-26 17:41:08 +0000100ifeq ($(CONFIG_PPC64),y)
101ifeq ($(call cc-option-yn,-mcmodel=medium),y)
102 # -mcmodel=medium breaks modules because it uses 32bit offsets from
103 # the TOC pointer to create pointers where possible. Pointers into the
104 # percpu data area are created by this method.
105 #
106 # The kernel module loader relocates the percpu data section from the
107 # original location (starting with 0xd...) to somewhere in the base
108 # kernel percpu data space (starting with 0xc...). We need a full
109 # 64bit relocation for this to work, hence -mcmodel=large.
110 KBUILD_CFLAGS_MODULE += -mcmodel=large
111else
112 export NO_MINIMAL_TOC := -mno-minimal-toc
113endif
114endif
115
Anton Blanchard721aeaa2014-03-10 21:06:12 +1100116CFLAGS-$(CONFIG_PPC64) := -mtraceback=no
117ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
118CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,-mcall-aixdesc)
119AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
120else
121CFLAGS-$(CONFIG_PPC64) += -mcall-aixdesc
122endif
Anton Blanchard1fbe9cf2012-11-26 17:41:08 +0000123CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc)
Anton Blanchard98679fb2012-12-12 14:43:12 +0000124CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
Ian Munsied72b0802013-09-23 12:05:11 +1000125CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD)
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000126
Scott Wood01718ba2013-08-20 19:55:36 -0500127ifeq ($(CONFIG_PPC_BOOK3S_64),y)
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000128CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4)
Scott Wood01718ba2013-08-20 19:55:36 -0500129else
130CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
131endif
132
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000133CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell)
134CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4)
135CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
136CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
137CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
Anton Blanchardff2e4662014-09-16 10:47:49 +1000138CFLAGS-$(CONFIG_POWER8_CPU) += $(call cc-option,-mcpu=power8)
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000139
Tiejun Chencbf8a352013-11-22 10:49:00 +0800140# Altivec option not allowed with e500mc64 in GCC.
141ifeq ($(CONFIG_ALTIVEC),y)
142E5500_CPU := -mcpu=powerpc64
143else
Scott Wood01718ba2013-08-20 19:55:36 -0500144E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
Tiejun Chencbf8a352013-11-22 10:49:00 +0800145endif
Scott Wood01718ba2013-08-20 19:55:36 -0500146CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
147CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
148
Scott Wood847f56b2013-08-15 19:19:10 -0500149ifeq ($(CONFIG_PPC32),y)
150ifeq ($(CONFIG_PPC_E500MC),y)
151CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
152else
153CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
154endif
155endif
156
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000157CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell)
158
Guenter Roeck7998eb32014-05-15 09:33:42 -0700159asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
160
161KBUILD_CPPFLAGS += -Iarch/$(ARCH) $(asinstr)
Anton Blanchard58aedccb2014-04-23 10:02:04 +1000162KBUILD_AFLAGS += -Iarch/$(ARCH) $(AFLAGS-y)
Kumar Gala1993cbf2008-04-16 05:52:20 +1000163KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y)
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200164CPP = $(CC) -E $(KBUILD_CFLAGS)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000165
Stephen Rothwell2578bfa2007-09-21 10:16:20 +1000166CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000167
Michal Marek772320e2010-08-04 13:59:13 +0200168KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
Stephen Rothwell7fca5dc2010-06-29 20:08:42 +0000169
Alistair Poppled5b35cf2014-02-24 18:00:56 +1100170ifeq ($(CONFIG_476FPE_ERR46),y)
171 KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
172 -T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
173endif
174
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000175# No AltiVec or VSX instructions when building kernel
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200176KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
Anton Blanchardd23c6fb2012-04-17 18:45:28 +0000177KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
Paul Mackerrasd3f67fb2005-10-29 15:31:17 +1000178
Kumar Gala0197cd22007-10-18 16:53:19 -0500179# No SPE instruction when building kernel
Thiemo Seuferce400c02008-09-02 00:23:02 +1000180# (We use all available options to help semi-broken compilers)
Kumar Gala0197cd22007-10-18 16:53:19 -0500181KBUILD_CFLAGS += $(call cc-option,-mno-spe)
Thiemo Seuferce400c02008-09-02 00:23:02 +1000182KBUILD_CFLAGS += $(call cc-option,-mspe=no)
Kumar Gala0197cd22007-10-18 16:53:19 -0500183
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000184# Enable unit-at-a-time mode when possible. It shrinks the
185# kernel considerably.
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200186KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000187
Andi Kleend0679c72010-02-02 14:40:02 -0800188# FIXME: the module load should be taught about the additional relocs
189# generated by this.
190# revert to pre-gcc-4.4 behaviour of .eh_frame
191KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
192
Benjamin Herrenschmidt57647a42007-03-22 17:23:44 +1100193# Never use string load/store instructions as they are
194# often slow when they are implemented at all
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200195KBUILD_CFLAGS += -mno-string
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000196
Olaf Heringf48b8292006-04-11 20:42:08 +0200197ifeq ($(CONFIG_6xx),y)
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200198KBUILD_CFLAGS += -mcpu=powerpc
Olaf Heringf48b8292006-04-11 20:42:08 +0200199endif
200
Tony Breeds7563dc62008-09-02 16:50:38 +1000201# Work around a gcc code-gen bug with -fno-omit-frame-pointer.
Steven Rostedt606576c2008-10-06 19:06:12 -0400202ifeq ($(CONFIG_FUNCTION_TRACER),y)
Tony Breeds7563dc62008-09-02 16:50:38 +1000203KBUILD_CFLAGS += -mno-sched-epilog
204endif
205
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000206cpu-as-$(CONFIG_4xx) += -Wa,-m405
Matthew McClintocke1fc2352010-09-07 08:56:55 +0000207cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000208cpu-as-$(CONFIG_E200) += -Wa,-me200
209
Sam Ravnborg222d3942007-10-15 21:59:31 +0200210KBUILD_AFLAGS += $(cpu-as-y)
Sam Ravnborga0f97e02007-10-14 22:21:35 +0200211KBUILD_CFLAGS += $(cpu-as-y)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000212
Stephen Rothwell2578bfa2007-09-21 10:16:20 +1000213head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000214head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o
Josh Boyer15f65272007-08-20 07:27:07 -0500215head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000216head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o
217head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o
218
Paul Mackerras9994a332005-10-10 22:36:14 +1000219head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000220head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
Benjamin Herrenschmidte821ea72009-06-02 21:17:37 +0000221head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o
Anton Blanchard5ac47f72012-11-26 17:39:03 +0000222head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000223
Paul Mackerrasdaec9622005-10-10 22:25:26 +1000224core-y += arch/powerpc/kernel/ \
Paul Mackerrasdaec9622005-10-10 22:25:26 +1000225 arch/powerpc/mm/ \
226 arch/powerpc/lib/ \
227 arch/powerpc/sysdev/ \
Liu Yu1a3d1fc2009-03-10 11:09:49 +0800228 arch/powerpc/platforms/ \
Matt Evans0ca87f02011-07-20 15:51:00 +0000229 arch/powerpc/math-emu/ \
Michael Ellerman323a6bf2012-09-13 23:00:49 +0000230 arch/powerpc/crypto/ \
Matt Evans0ca87f02011-07-20 15:51:00 +0000231 arch/powerpc/net/
Paul Mackerrasf78541d2005-10-28 22:53:37 +1000232core-$(CONFIG_XMON) += arch/powerpc/xmon/
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500233core-$(CONFIG_KVM) += arch/powerpc/kvm/
Michael Ellermanf2699492012-02-20 17:02:09 +0000234core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000235
236drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
237
Tom Rini135f0b12006-01-12 16:55:58 -0700238# Default to zImage, override when needed
Grant Likely25431332008-02-07 05:18:34 +1100239all: zImage
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000240
Sam Ravnborge32e78c2010-08-02 20:47:48 +0000241# With make 3.82 we cannot mix normal and wildcard targets
Anatolij Gustschinc686ecf2010-08-15 22:26:56 +0000242BOOT_TARGETS1 := zImage zImage.initrd uImage
Benjamin Herrenschmidt11eab2972011-12-01 19:35:08 +0000243BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.%
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000244
Sam Ravnborge32e78c2010-08-02 20:47:48 +0000245PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2)
Stephen Rothwellcabb5582005-09-30 16:16:52 +1000246
Paul Mackerras94b212c2005-11-16 13:38:21 +1100247boot := arch/$(ARCH)/boot
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000248
Tony Breeds144ef902009-09-14 19:57:02 +0000249ifeq ($(CONFIG_RELOCATABLE),y)
250quiet_cmd_relocs_check = CALL $<
251 cmd_relocs_check = perl $< "$(OBJDUMP)" "$(obj)/vmlinux"
252
253PHONY += relocs_check
254relocs_check: arch/powerpc/relocs_check.pl vmlinux
255 $(call cmd,relocs_check)
256
257zImage: relocs_check
258endif
259
Sam Ravnborge32e78c2010-08-02 20:47:48 +0000260$(BOOT_TARGETS1): vmlinux
261 $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
262$(BOOT_TARGETS2): vmlinux
Paul Mackerras20f62952005-10-11 09:25:40 +1000263 $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000264
Sam Ravnborge32e78c2010-08-02 20:47:48 +0000265
266bootwrapper_install:
267 $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
268
Matthew McClintock8662d0b2012-09-18 09:50:55 +0000269%.dtb: scripts
David Woodhouse773f76b2007-12-03 13:56:58 +1100270 $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
271
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000272define archhelp
Grant Likely70bf0332008-06-25 13:14:36 -0700273 @echo '* zImage - Build default images selected by kernel config'
274 @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
275 @echo ' uImage - U-Boot native image format'
276 @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older'
277 @echo ' versions which do not support device trees'
278 @echo ' dtbImage.<dt> - zImage with an embedded device tree blob'
279 @echo ' simpleImage.<dt> - Firmware independent image.'
280 @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)'
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000281 @echo ' install - Install kernel using'
Sam Ravnborgcaa27b62009-07-20 21:37:11 +0200282 @echo ' (your) ~/bin/$(INSTALLKERNEL) or'
283 @echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000284 @echo ' install to $$(INSTALL_PATH) and run lilo'
Paul Mackerras437a58d2005-11-18 15:43:34 +1100285 @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs'
Grant Likely70bf0332008-06-25 13:14:36 -0700286 @echo ''
287 @echo ' Targets with <dt> embed a device tree blob inside the image'
288 @echo ' These targets support board with firmware that does not'
289 @echo ' support passing a device tree directly. Replace <dt> with the'
290 @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
291 @echo ' (minus the .dts extension).'
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000292endef
293
Sam Ravnborg3f85d632008-02-16 12:36:10 +0100294install:
Grant Likely25431332008-02-07 05:18:34 +1100295 $(Q)$(MAKE) $(build)=$(boot) install
Akinobu Mita928370c2007-04-10 21:05:31 +1000296
Roland McGrath8150caa2007-10-02 13:30:04 -0700297vdso_install:
298ifeq ($(CONFIG_PPC64),y)
299 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
300endif
301 $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
302
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000303archclean:
Paul Mackerrasa3a9e992005-09-28 15:53:36 +1000304 $(Q)$(MAKE) $(clean)=$(boot)
Andreas Gruenbacher70567292006-02-10 01:51:07 -0800305
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000306archprepare: checkbin
307
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000308# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
309# to stdout and these checks are run even on install targets.
310TOUT := .tmp_gas_check
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000311
Anton Blanchard82a85082012-04-17 18:42:54 +0000312# Check gcc and binutils versions:
313# - gcc-3.4 and binutils-2.14 are a fatal combination
314# - Require gcc 4.0 or above on 64-bit
315# - gcc-4.2.0 has issues compiling modules on 64-bit
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000316checkbin:
Sam Ravnborgad143362006-01-08 19:58:51 +0100317 @if test "$(call cc-version)" = "0304" ; then \
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000318 if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
319 echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
320 echo 'correctly with gcc-3.4 and your version of binutils.'; \
321 echo '*** Please upgrade your binutils or downgrade your gcc'; \
322 false; \
323 fi ; \
324 fi
Anton Blanchard82a85082012-04-17 18:42:54 +0000325 @if test "$(call cc-version)" -lt "0400" \
326 && test "x${CONFIG_PPC64}" = "xy" ; then \
327 echo -n "Sorry, GCC v4.0 or above is required to build " ; \
328 echo "the 64-bit powerpc kernel." ; \
329 false ; \
330 fi
Segher Boessenkoolf5e83fa2007-05-19 18:49:08 +0200331 @if test "$(call cc-fullversion)" = "040200" \
332 && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
333 echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
334 echo 'kernel with modules enabled.' ; \
335 echo -n '*** Please use a different GCC version or ' ; \
336 echo 'disable kernel modules' ; \
337 false ; \
338 fi
Paul Mackerras14cf11a2005-09-26 16:04:21 +1000339
340CLEAN_FILES += $(TOUT)
341