aboutsummaryrefslogtreecommitdiff
path: root/arch/ppc/Makefile
blob: dd63ccb6673218e12f8406ffbe91c6a9bee3fa9e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies.
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
# Changes for PPC by Gary Thomas
# Rewritten by Cort Dougan and Paul Mackerras
#

# This must match PAGE_OFFSET in include/asm-ppc/page.h.
KERNELLOAD	:= $(CONFIG_KERNEL_START)

HAS_BIARCH	:= $(call cc-option-yn, -m32)
ifeq ($(HAS_BIARCH),y)
AS		:= $(AS) -a32
LD		:= $(LD) -m elf32ppc
CC		:= $(CC) -m32
endif

LDFLAGS_vmlinux	:= -Ttext $(KERNELLOAD) -Bstatic
# The -Iarch/$(ARCH)/include is temporary while we are merging
CPPFLAGS	+= -Iarch/$(ARCH) -Iarch/$(ARCH)/include
KBUILD_AFLAGS	+= -Iarch/$(ARCH)
KBUILD_CFLAGS	+= -Iarch/$(ARCH) -msoft-float -pipe \
		-ffixed-r2 -mmultiple

# No AltiVec instruction when building kernel
KBUILD_CFLAGS	+= $(call cc-option, -mno-altivec)

CPP		= $(CC) -E $(KBUILD_CFLAGS)
# Temporary hack until we have migrated to asm-powerpc
LINUXINCLUDE    += -Iarch/$(ARCH)/include

CHECKFLAGS	+= -D__powerpc__

ifndef CONFIG_FSL_BOOKE
KBUILD_CFLAGS	+= -mstring
endif

cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
cpu-as-$(CONFIG_6xx)		+= -Wa,-maltivec
cpu-as-$(CONFIG_E500)		+= -Wa,-me500
cpu-as-$(CONFIG_E200)		+= -Wa,-me200

KBUILD_AFLAGS += $(cpu-as-y)
KBUILD_CFLAGS += $(cpu-as-y)

# Default to the common case.
KBUILD_DEFCONFIG := common_defconfig

head-y				:= arch/ppc/kernel/head.o
head-$(CONFIG_8xx)		:= arch/ppc/kernel/head_8xx.o
head-$(CONFIG_4xx)		:= arch/ppc/kernel/head_4xx.o
head-$(CONFIG_44x)		:= arch/ppc/kernel/head_44x.o
head-$(CONFIG_FSL_BOOKE)	:= arch/ppc/kernel/head_fsl_booke.o

head-$(CONFIG_PPC_FPU)		+= arch/powerpc/kernel/fpu.o

core-y				+= arch/ppc/kernel/ arch/powerpc/kernel/ \
				   arch/ppc/platforms/ \
				   arch/ppc/mm/ arch/ppc/lib/ \
				   arch/ppc/syslib/ arch/powerpc/sysdev/ \
				   arch/powerpc/lib/
core-$(CONFIG_4xx)		+= arch/ppc/platforms/4xx/
core-$(CONFIG_83xx)		+= arch/ppc/platforms/83xx/
core-$(CONFIG_85xx)		+= arch/ppc/platforms/85xx/
core-$(CONFIG_MATH_EMULATION)	+= arch/powerpc/math-emu/
core-$(CONFIG_XMON)		+= arch/ppc/xmon/
drivers-$(CONFIG_8xx)		+= arch/ppc/8xx_io/
drivers-$(CONFIG_4xx)		+= arch/ppc/4xx_io/
drivers-$(CONFIG_CPM2)		+= arch/ppc/8260_io/

drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/

BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm

PHONY += $(BOOT_TARGETS)

all: uImage zImage

CPPFLAGS_vmlinux.lds	:= -Upowerpc

# All the instructions talk about "make bzImage".
bzImage: zImage

boot := arch/$(ARCH)/boot

$(BOOT_TARGETS): vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $@

uImage: vmlinux
	$(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@

define archhelp
  @echo '* zImage          - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
  @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
  @echo '  install         - Install kernel using'
  @echo '                    (your) ~/bin/installkernel or'
  @echo '                    (distribution) /sbin/installkernel or'
  @echo '                    install to $$(INSTALL_PATH) and run lilo'
  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
endef

archclean:
	$(Q)$(MAKE) $(clean)=arch/ppc/boot
	# Temporary hack until we have migrated to asm-powerpc
	$(Q)rm -rf arch/$(ARCH)/include

archprepare: checkbin

# Temporary hack until we have migrated to asm-powerpc
include/asm: arch/$(ARCH)/include/asm
arch/$(ARCH)/include/asm:
	$(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
	$(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm

# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
# to stdout and these checks are run even on install targets.
TOUT	:= .tmp_gas_check
# Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec
# instructions.
# gcc-3.4 and binutils-2.14 are a fatal combination.

checkbin:
	@if test "$(call cc-version)" = "0304" ; then \
		if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
			echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
			echo 'correctly with gcc-3.4 and your version of binutils.'; \
			echo '*** Please upgrade your binutils or downgrade your gcc'; \
			false; \
		fi ; \
	fi
	@if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \
		echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \
		echo 'correctly with old versions of binutils.' ; \
		echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \
		false ; \
	fi

CLEAN_FILES += $(TOUT)