>> 1 # This file is included by the global makefile so that you can add your own
>> 2 # architecture-specific flags and dependencies.
1 # 3 #
2 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
4 # for more details. 6 # for more details.
5 # 7 #
6 # Copyright (C) 2013 Altera Corporation !! 8 # Copyright (C) 1994 by Linus Torvalds
7 # Copyright (C) 1994, 95, 96, 2003 by Wind Riv !! 9 # Changes for PPC by Gary Thomas
8 # Written by Fredrik Markstrom !! 10 # Rewritten by Cort Dougan and Paul Mackerras
9 # 11 #
10 # This file is included by the global makefile <<
11 # architecture-specific flags and dependencies <<
12 # <<
13 # Nios2 port by Wind River Systems Inc trough: <<
14 # fredrik.markstrom@gmail.com and ivarholmqv <<
15 12
16 KBUILD_DEFCONFIG := 3c120_defconfig !! 13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
>> 14 KERNELLOAD := $(CONFIG_KERNEL_START)
>> 15
>> 16 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
>> 17 CPPFLAGS += -Iarch/$(ARCH)
>> 18 AFLAGS += -Iarch/$(ARCH)
>> 19 cflags-y += -Iarch/$(ARCH) -msoft-float -pipe \
>> 20 -ffixed-r2 -Wno-uninitialized -mmultiple -mstring
>> 21 CPP = $(CC) -E $(CFLAGS)
>> 22
>> 23 cflags-$(CONFIG_4xx) += -Wa,-m405
>> 24 cflags-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
17 25
18 UTS_SYSNAME = Linux !! 26 CFLAGS += $(cflags-y)
19 27
20 export MMU <<
21 28
22 LIBGCC := $(shell $(CC) $(KBUILD_CFLAG !! 29 head-y := arch/ppc/kernel/head.o
>> 30 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
>> 31 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
>> 32 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
23 33
24 KBUILD_AFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 34 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
>> 35 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
25 36
26 KBUILD_CFLAGS += -pipe -D__linux__ -D__ELF__ !! 37 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
27 KBUILD_CFLAGS += -march=r$(CONFIG_NIOS2_ARCH_R !! 38 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
28 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MUL_SU !! 39 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
29 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_MULX_S !! 40 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
30 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_HW_DIV_SU !! 41 core-$(CONFIG_XMON) += arch/ppc/xmon/
31 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_BMX_SUPPO !! 42 core-$(CONFIG_APUS) += arch/ppc/amiga/
32 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_CDX_SUPPO !! 43 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
33 KBUILD_CFLAGS += $(if $(CONFIG_NIOS2_FPU_SUPPO !! 44 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
>> 45 drivers-$(CONFIG_8260) += arch/ppc/8260_io/
>> 46 drivers-$(CONFIG_OCP) += arch/ppc/ocp/
34 47
35 KBUILD_CFLAGS += -fno-optimize-sibling-calls !! 48 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
36 KBUILD_CFLAGS += -DUTS_SYSNAME=\"$(UTS_SYSNAME <<
37 KBUILD_CFLAGS += -fno-builtin <<
38 KBUILD_CFLAGS += -G 0 <<
39 49
40 libs-y += arch/nios2/lib/ $(LIBGCC) !! 50 .PHONY: $(BOOT_TARGETS)
41 51
42 INSTALL_PATH ?= /tftpboot !! 52 all: zImage
43 nios2-boot := arch/$(ARCH)/boot <<
44 BOOT_TARGETS = vmImage zImage <<
45 PHONY += $(BOOT_TARGETS) install <<
46 KBUILD_IMAGE := $(nios2-boot)/vmImage <<
47 53
48 all: vmImage !! 54 AFLAGS_vmlinux.lds.o := -Upowerpc
>> 55
>> 56 # All the instructions talk about "make bzImage".
>> 57 bzImage: zImage
>> 58
>> 59 boot := arch/$(ARCH)/boot
49 60
50 $(BOOT_TARGETS): vmlinux 61 $(BOOT_TARGETS): vmlinux
51 $(Q)$(MAKE) $(build)=$(nios2-boot) $(n !! 62 $(Q)$(MAKE) $(build)=$(boot) $@
52 63
53 install: !! 64 uImage: vmlinux
54 $(call cmd,install) !! 65 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
55 66
56 define archhelp 67 define archhelp
57 echo '* vmImage - Kernel-only image !! 68 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
58 echo ' install - Install kernel us !! 69 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
59 echo ' (your) ~/bin/$(I !! 70 @echo ' install - Install kernel using'
60 echo ' (distribution) / !! 71 @echo ' (your) ~/bin/installkernel or'
61 echo ' install to $$(IN !! 72 @echo ' (distribution) /sbin/installkernel or'
>> 73 @echo ' install to $$(INSTALL_PATH) and run lilo'
>> 74 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
62 endef 75 endef
>> 76
>> 77 archclean:
>> 78 $(Q)$(MAKE) $(clean)=arch/ppc/boot
>> 79
>> 80 prepare: include/asm-$(ARCH)/offsets.h checkbin
>> 81
>> 82 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
>> 83 include/config/MARKER
>> 84
>> 85 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
>> 86 $(call filechk,gen-asm-offsets)
>> 87
>> 88 ifdef CONFIG_6xx
>> 89 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
>> 90 NEW_AS := $(shell echo dssall | $(AS) -o /dev/null >/dev/null 2>&1 ; echo $$?)
>> 91 GOODVER := 2.12.1
>> 92 else
>> 93 NEW_AS := 0
>> 94 endif
>> 95
>> 96 ifneq ($(NEW_AS),0)
>> 97 checkbin:
>> 98 @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build'
>> 99 @echo 'correctly with old versions of binutils.'
>> 100 @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
>> 101 @false
>> 102 else
>> 103 checkbin:
>> 104 @true
>> 105 endif
>> 106
>> 107 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
>> 108 arch/$(ARCH)/kernel/asm-offsets.s
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