1 # This file is included by the global makefile so that you can add your own
2 # architecture-specific flags and dependencies.
4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main directory of this archive
8 # Copyright (C) 1994 by Linus Torvalds
9 # Changes for PPC by Gary Thomas
10 # Rewritten by Cort Dougan and Paul Mackerras
13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
14 KERNELLOAD := $(CONFIG_KERNEL_START)
16 HAS_BIARCH := $(shell if $(CC) -m32 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;)
17 ifeq ($(HAS_BIARCH),y)
19 LD := $(LD) -m elf32ppc
23 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
24 CPPFLAGS += -Iarch/$(ARCH)
25 AFLAGS += -Iarch/$(ARCH)
26 cflags-y += -Iarch/$(ARCH) -msoft-float -pipe \
27 -ffixed-r2 -Wno-uninitialized -mmultiple
28 CPP = $(CC) -E $(CFLAGS)
34 cflags-$(CONFIG_4xx) += -Wa,-m405
35 cflags-$(CONFIG_E500) += -Wa,-me500
36 cflags-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
40 head-y := arch/ppc/kernel/head.o
41 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
42 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
43 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
44 head-$(CONFIG_E500) := arch/ppc/kernel/head_e500.o
46 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
47 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
49 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
50 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
51 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
52 core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/
53 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
54 core-$(CONFIG_XMON) += arch/ppc/xmon/
55 core-$(CONFIG_APUS) += arch/ppc/amiga/
56 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
57 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
58 drivers-$(CONFIG_CPM2) += arch/ppc/8260_io/
60 drivers-$(CONFIG_OPROFILE) += arch/ppc/oprofile/
62 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
64 .PHONY: $(BOOT_TARGETS)
68 AFLAGS_vmlinux.lds.o := -Upowerpc
70 # All the instructions talk about "make bzImage".
72 cp vmlinux arch/ppc/boot/bzImage
74 boot := arch/$(ARCH)/boot
76 $(BOOT_TARGETS): vmlinux
77 $(Q)$(MAKE) $(build)=$(boot) $@
80 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
83 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
84 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
85 @echo ' install - Install kernel using'
86 @echo ' (your) ~/bin/installkernel or'
87 @echo ' (distribution) /sbin/installkernel or'
88 @echo ' install to $$(INSTALL_PATH) and run lilo'
89 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
93 $(Q)$(MAKE) $(clean)=arch/ppc/boot
95 prepare: include/asm-$(ARCH)/offsets.h checkbin
97 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
100 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
101 $(call filechk,gen-asm-offsets)
104 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
105 NEW_AS := $(shell echo dssall | $(AS) -many -o /dev/null >/dev/null 2>&1 ; echo $$?)
113 @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '
114 @echo 'correctly with old versions of binutils.'
115 @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
122 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
123 arch/$(ARCH)/kernel/asm-offsets.s