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
|
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# 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
# Adjusted for PPC64 by Tom Gall
#
KERNELLOAD := 0xc000000000000000
# Set default 32 bits cross compilers for vdso and boot wrapper
CROSS32_COMPILE ?=
CROSS32CC := $(CROSS32_COMPILE)gcc
CROSS32AS := $(CROSS32_COMPILE)as
CROSS32LD := $(CROSS32_COMPILE)ld
CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy
# If we have a biarch compiler, use it for 32 bits cross compile if
# CROSS32_COMPILE wasn't explicitely defined, and add proper explicit
# target type to target compilers
HAS_BIARCH := $(call cc-option-yn, -m64)
ifeq ($(HAS_BIARCH),y)
ifeq ($(CROSS32_COMPILE),)
CROSS32CC := $(CC) -m32
CROSS32AS := $(AS) -a32
CROSS32LD := $(LD) -m elf32ppc
CROSS32OBJCOPY := $(OBJCOPY)
endif
override AS += -a64
override LD += -m elf64ppc
override CC += -m64
endif
export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
ifeq ($(new_nm),y)
NM := $(NM) --synthetic
endif
CHECKFLAGS += -m64 -D__powerpc__
LDFLAGS := -m elf64ppc
LDFLAGS_vmlinux := -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
CFLAGS += -msoft-float -pipe -mminimal-toc -mtraceback=none \
-mcall-aixdesc
# Temporary hack until we have migrated to asm-powerpc
CPPFLAGS += -Iinclude3
GCC_VERSION := $(call cc-version)
GCC_BROKEN_VEC := $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi ;)
ifeq ($(CONFIG_POWER4_ONLY),y)
ifeq ($(CONFIG_ALTIVEC),y)
ifeq ($(GCC_BROKEN_VEC),y)
CFLAGS += $(call cc-option,-mcpu=970)
else
CFLAGS += $(call cc-option,-mcpu=power4)
endif
else
CFLAGS += $(call cc-option,-mcpu=power4)
endif
else
CFLAGS += $(call cc-option,-mtune=power4)
endif
# Enable unit-at-a-time mode when possible. It shrinks the
# kernel considerably.
CFLAGS += $(call cc-option,-funit-at-a-time)
head-y := arch/ppc64/kernel/head.o
libs-y += arch/ppc64/lib/
core-y += arch/ppc64/kernel/
core-y += arch/ppc64/mm/
core-$(CONFIG_XMON) += arch/ppc64/xmon/
drivers-$(CONFIG_OPROFILE) += arch/ppc64/oprofile/
boot := arch/ppc64/boot
boottarget-$(CONFIG_PPC_PSERIES) := zImage zImage.initrd
boottarget-$(CONFIG_PPC_MAPLE) := zImage zImage.initrd
boottarget-$(CONFIG_PPC_ISERIES) := vmlinux.sminitrd vmlinux.initrd vmlinux.sm
boottarget-$(CONFIG_PPC_BPA) := zImage zImage.initrd
$(boottarget-y): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage
bootimage-$(CONFIG_PPC_PMAC) := vmlinux
bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage
bootimage-$(CONFIG_PPC_BPA) := zImage
bootimage-$(CONFIG_PPC_ISERIES) := vmlinux
BOOTIMAGE := $(bootimage-y)
install: vmlinux
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
defaultimage-$(CONFIG_PPC_PSERIES) := zImage
defaultimage-$(CONFIG_PPC_PMAC) := vmlinux
defaultimage-$(CONFIG_PPC_MAPLE) := zImage
defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
KBUILD_IMAGE := $(defaultimage-y)
all: $(KBUILD_IMAGE)
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
$(Q)rm -rf include3
prepare: include/asm-ppc64/offsets.h
arch/ppc64/kernel/asm-offsets.s: include/asm include/linux/version.h \
include/config/MARKER
include/asm-ppc64/offsets.h: arch/ppc64/kernel/asm-offsets.s
$(call filechk,gen-asm-offsets)
# Temporary hack until we have migrated to asm-powerpc
include/asm: include3/asm
include3/asm:
$(Q)if [ ! -d include3 ]; then mkdir -p include3; fi;
$(Q)ln -fsn $(srctree)/include/asm-powerpc include3/asm
define archhelp
echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
echo ' zImage.initrd- Compressed kernel image with initrd attached,'
echo ' sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
echo ' (arch/$(ARCH)/boot/zImage.initrd)'
endef
CLEAN_FILES += include/asm-ppc64/offsets.h
|
