1 # 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
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
10 # Copyright (C) 1994 by Linus Torvalds
11 # Changes for PPC by Gary Thomas
12 # Rewritten by Cort Dougan and Paul Mackerras
15 HAS_BIARCH
:= $(call cc-option-yn
, -m32
)
17 # Set default 32 bits cross compilers for vdso and boot wrapper
20 CROSS32CC
:= $(CROSS32_COMPILE
)gcc
21 CROSS32AS
:= $(CROSS32_COMPILE
)as
22 CROSS32LD
:= $(CROSS32_COMPILE
)ld
23 CROSS32AR
:= $(CROSS32_COMPILE
)ar
24 CROSS32OBJCOPY
:= $(CROSS32_COMPILE
)objcopy
26 ifeq ($(HAS_BIARCH
),y
)
27 ifeq ($(CROSS32_COMPILE
),)
28 CROSS32CC
:= $(CC
) -m32
29 CROSS32AS
:= $(AS
) -a32
30 CROSS32LD
:= $(LD
) -m elf32ppc
31 CROSS32OBJCOPY
:= $(OBJCOPY
)
32 CROSS32AR
:= GNUTARGET
=elf32-powerpc
$(AR
)
36 export CROSS32CC CROSS32AS CROSS32LD CROSS32AR CROSS32OBJCOPY
38 ifeq ($(CROSS_COMPILE
),)
39 KBUILD_DEFCONFIG
:= $(shell uname
-m
)_defconfig
41 KBUILD_DEFCONFIG
:= ppc64_defconfig
44 ifeq ($(CONFIG_PPC64
),y
)
47 new_nm
:= $(shell if
$(NM
) --help
2>&1 | grep
-- '--synthetic' > /dev
/null
; then echo y
; else echo n
; fi
)
50 NM
:= $(NM
) --synthetic
57 # It seems there are times we use this Makefile without
58 # including the config file, but this replicates the old behaviour
59 ifeq ($(CONFIG_WORD_SIZE
),)
60 CONFIG_WORD_SIZE
:= 32
63 UTS_MACHINE
:= $(OLDARCH
)
65 ifeq ($(HAS_BIARCH
),y
)
66 override AS
+= -a
$(CONFIG_WORD_SIZE
)
67 override LD
+= -m elf
$(CONFIG_WORD_SIZE
)ppc
68 override CC
+= -m
$(CONFIG_WORD_SIZE
)
69 override AR
:= GNUTARGET
=elf
$(CONFIG_WORD_SIZE
)-powerpc
$(AR
)
72 LDFLAGS_vmlinux
:= -Bstatic
74 CPPFLAGS-
$(CONFIG_PPC32
) := -Iarch
/$(ARCH
)
75 AFLAGS-
$(CONFIG_PPC32
) := -Iarch
/$(ARCH
)
76 CFLAGS-
$(CONFIG_PPC64
) := -mminimal-toc
-mtraceback
=none
-mcall-aixdesc
77 CFLAGS-
$(CONFIG_PPC32
) := -Iarch
/$(ARCH
) -ffixed-r2
-mmultiple
78 KBUILD_CPPFLAGS
+= $(CPPFLAGS-y
)
79 KBUILD_AFLAGS
+= $(AFLAGS-y
)
80 KBUILD_CFLAGS
+= -msoft-float
-pipe
$(CFLAGS-y
)
81 CPP
= $(CC
) -E
$(KBUILD_CFLAGS
)
83 CHECKFLAGS
+= -m
$(CONFIG_WORD_SIZE
) -D__powerpc__
-D__powerpc
$(CONFIG_WORD_SIZE
)__
85 ifeq ($(CONFIG_PPC64
),y
)
86 GCC_BROKEN_VEC
:= $(shell if
[ $(call cc-version
) -lt
0400 ] ; then echo
"y"; fi
)
88 ifeq ($(CONFIG_POWER4_ONLY
),y
)
89 ifeq ($(CONFIG_ALTIVEC
),y
)
90 ifeq ($(GCC_BROKEN_VEC
),y
)
91 KBUILD_CFLAGS
+= $(call cc-option
,-mcpu
=970)
93 KBUILD_CFLAGS
+= $(call cc-option
,-mcpu
=power4
)
96 KBUILD_CFLAGS
+= $(call cc-option
,-mcpu
=power4
)
99 KBUILD_CFLAGS
+= $(call cc-option
,-mtune
=power4
)
103 ifeq ($(CONFIG_TUNE_CELL
),y
)
104 KBUILD_CFLAGS
+= $(call cc-option
,-mtune
=cell
)
107 # No AltiVec instruction when building kernel
108 KBUILD_CFLAGS
+= $(call cc-option
,-mno-altivec
)
110 # No SPE instruction when building kernel
111 KBUILD_CFLAGS
+= $(call cc-option
,-mno-spe
)
113 # Enable unit-at-a-time mode when possible. It shrinks the
114 # kernel considerably.
115 KBUILD_CFLAGS
+= $(call cc-option
,-funit-at-a-time
)
117 # Never use string load/store instructions as they are
118 # often slow when they are implemented at all
119 KBUILD_CFLAGS
+= -mno-string
121 ifeq ($(CONFIG_6xx
),y
)
122 KBUILD_CFLAGS
+= -mcpu
=powerpc
125 cpu-as-
$(CONFIG_4xx
) += -Wa
,-m405
126 cpu-as-
$(CONFIG_6xx
) += -Wa
,-maltivec
127 cpu-as-
$(CONFIG_POWER4
) += -Wa
,-maltivec
128 cpu-as-
$(CONFIG_E500
) += -Wa
,-me500
129 cpu-as-
$(CONFIG_E200
) += -Wa
,-me200
131 KBUILD_AFLAGS
+= $(cpu-as-y
)
132 KBUILD_CFLAGS
+= $(cpu-as-y
)
134 head-y
:= arch
/powerpc
/kernel
/head_
$(CONFIG_WORD_SIZE
).o
135 head-
$(CONFIG_8xx
) := arch
/powerpc
/kernel
/head_8xx.o
136 head-
$(CONFIG_40x
) := arch
/powerpc
/kernel
/head_40x.o
137 head-
$(CONFIG_44x
) := arch
/powerpc
/kernel
/head_44x.o
138 head-
$(CONFIG_FSL_BOOKE
) := arch
/powerpc
/kernel
/head_fsl_booke.o
140 head-
$(CONFIG_PPC64
) += arch
/powerpc
/kernel
/entry_64.o
141 head-
$(CONFIG_PPC_FPU
) += arch
/powerpc
/kernel
/fpu.o
143 core-y
+= arch
/powerpc
/kernel
/ \
146 arch
/powerpc
/sysdev
/ \
147 arch
/powerpc
/platforms
/
148 core-
$(CONFIG_MATH_EMULATION
) += arch
/powerpc
/math-emu
/
149 core-
$(CONFIG_XMON
) += arch
/powerpc
/xmon
/
151 drivers-
$(CONFIG_OPROFILE
) += arch
/powerpc
/oprofile
/
153 # Default to zImage, override when needed
156 CPPFLAGS_vmlinux.lds
:= -Upowerpc
158 <<<<<<< HEAD
:arch
/powerpc
/Makefile
159 BOOT_TARGETS
= zImage zImage.initrd uImage treeImage.
% cuImage.
%
161 BOOT_TARGETS
= zImage zImage.initrd uImage zImage
% dtbImage
% treeImage.
% cuImage.
%
162 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a
:arch
/powerpc
/Makefile
164 PHONY
+= $(BOOT_TARGETS
)
166 boot
:= arch
/$(ARCH
)/boot
168 $(BOOT_TARGETS
): vmlinux
169 $(Q
)$(MAKE
) ARCH
=ppc64
$(build
)=$(boot
) $(patsubst %,$(boot
)/%,$@
)
172 $(Q
)$(MAKE
) ARCH
=ppc64
$(build
)=$(boot
) $(patsubst %,$(boot
)/%,$@
)
175 @echo
'* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
176 @echo
' install - Install kernel using'
177 @echo
' (your) ~/bin/installkernel or'
178 @echo
' (distribution) /sbin/installkernel or'
179 @echo
' install to $$(INSTALL_PATH) and run lilo'
180 @echo
' *_defconfig - Select default config from arch/$(ARCH)/configs'
183 <<<<<<< HEAD
:arch
/powerpc
/Makefile
184 install: vdso_install
187 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a
:arch
/powerpc
/Makefile
188 $(Q
)$(MAKE
) $(build
)=$(boot
) install
191 ifeq ($(CONFIG_PPC64
),y
)
192 $(Q
)$(MAKE
) $(build
)=arch
/$(ARCH
)/kernel
/vdso64
$@
194 $(Q
)$(MAKE
) $(build
)=arch
/$(ARCH
)/kernel
/vdso32
$@
197 $(Q
)$(MAKE
) $(clean)=$(boot
)
199 archprepare
: checkbin
201 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
202 # to stdout and these checks are run even on install targets.
203 TOUT
:= .tmp_gas_check
204 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
206 # gcc-3.4 and binutils-2.14 are a fatal combination.
209 @if
test "$(call cc-version)" = "0304" ; then \
210 if
! /bin
/echo mftb
5 |
$(AS
) -v
-mppc
-many
-o
$(TOUT
) >/dev
/null
2>&1 ; then \
211 echo
-n
'*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
212 echo
'correctly with gcc-3.4 and your version of binutils.'; \
213 echo
'*** Please upgrade your binutils or downgrade your gcc'; \
217 @if
test "$(call cc-fullversion)" = "040200" \
218 && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
219 echo
-n
'*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
220 echo
'kernel with modules enabled.' ; \
221 echo
-n
'*** Please use a different GCC version or ' ; \
222 echo
'disable kernel modules' ; \
225 @if
! /bin
/echo dssall |
$(AS
) -many
-o
$(TOUT
) >/dev
/null
2>&1 ; then \
226 echo
-n
'*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
227 echo
'correctly with old versions of binutils.' ; \
228 echo
'*** Please upgrade your binutils to 2.12.1 or newer' ; \
232 CLEAN_FILES
+= $(TOUT
)