4 # Copyright (C) 1999 Kaz Kojima
5 # Copyright (C) 2002 - 2008 Paul Mundt
6 # Copyright (C) 2002 M. R. Brown
8 # This file is subject to the terms and conditions of the GNU General Public
9 # License. See the file "COPYING" in the main directory of this archive
13 ifeq ($(CROSS_COMPILE),)
14 CROSS_COMPILE := $(call cc-cross-prefix, sh-linux- sh-linux-gnu- sh-unknown-linux-gnu-)
18 KBUILD_DEFCONFIG := shx3_defconfig
21 isa-$(CONFIG_SH_DSP) := sh
22 isa-$(CONFIG_CPU_SH2) := sh2
23 isa-$(CONFIG_CPU_SH2A) := sh2a
24 isa-$(CONFIG_CPU_SH3) := sh3
25 isa-$(CONFIG_CPU_SH4) := sh4
26 isa-$(CONFIG_CPU_SH4A) := sh4a
27 isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al
29 isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp
32 cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,)
33 cflags-$(CONFIG_CPU_J2) += $(call cc-option,-mj2,)
34 cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \
35 $(call cc-option,-m2a-nofpu,) \
36 $(call cc-option,-m4-nofpu,)
37 cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,)
38 cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
39 $(call cc-option,-mno-implicit-fp,-m4-nofpu)
40 cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \
41 $(call cc-option,-m4a-nofpu,)
42 cflags-$(CONFIG_CPU_SH4AL_DSP) += $(call cc-option,-m4al,)
46 # In the case where we are stuck with a compiler that has been uselessly
47 # restricted to a particular ISA, a favourite default of newer GCCs when
48 # extensive multilib targets are not provided, ensure we get the best fit
49 # regarding FP generation. This is intentionally stupid (albeit many
50 # orders of magnitude less than GCC's default behaviour), as anything
51 # with a large number of multilib targets better have been built
52 # correctly for the target in mind.
54 cflags-y += $(shell $(CC) $(KBUILD_CFLAGS) -print-multi-lib | \
55 grep nofpu | sed q | sed -e 's/^/-/;s/;.*$$//')
56 # At this point, anything goes.
57 isaflags-y := $(call as-option,-Wa$(comma)-isa=any,)
60 # -Wa,-isa= tuning implies -Wa,-dsp for the versions of binutils that
61 # support it, while -Wa,-dsp by itself limits the range of usable opcodes
62 # on certain CPU subtypes. Try the ISA variant first, and if that fails,
63 # fall back on -Wa,-dsp for the old binutils versions. Even without DSP
64 # opcodes, we always want the best ISA tuning the version of binutils
67 isaflags-y := $(call as-option,-Wa$(comma)-isa=$(isa-y),)
69 isaflags-$(CONFIG_SH_DSP) := \
70 $(call as-option,-Wa$(comma)-isa=$(isa-y),-Wa$(comma)-dsp)
73 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb
74 cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -ml
76 cflags-y += $(call cc-option,-mno-fdpic)
77 cflags-y += $(isaflags-y) -ffreestanding
79 OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment \
80 -R .stab -R .stabstr -S
82 # Give the various platforms the opportunity to set default image types
83 defaultimage-y := zImage
84 defaultimage-$(CONFIG_SH_SH7785LCR) := uImage
85 defaultimage-$(CONFIG_SH_RSK) := uImage
86 defaultimage-$(CONFIG_SH_URQUELL) := uImage
87 defaultimage-$(CONFIG_SH_MIGOR) := uImage
88 defaultimage-$(CONFIG_SH_AP325RXA) := uImage
89 defaultimage-$(CONFIG_SH_SH7757LCR) := uImage
90 defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage
91 defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux
92 defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux
94 # Set some sensible Kbuild defaults
96 KBUILD_IMAGE := $(boot)/$(defaultimage-y)
99 # Choosing incompatible machines durings configuration will result in
100 # error messages during linking.
103 LDFLAGS_vmlinux += -e _stext
105 ifdef CONFIG_CPU_LITTLE_ENDIAN
106 ld-bfd := elf32-sh-linux
107 LDFLAGS_vmlinux += --defsym jiffies=jiffies_64 --oformat $(ld-bfd)
108 KBUILD_LDFLAGS += -EL
110 ld-bfd := elf32-shbig-linux
111 LDFLAGS_vmlinux += --defsym jiffies=jiffies_64+4 --oformat $(ld-bfd)
112 KBUILD_LDFLAGS += -EB
118 machdir-$(CONFIG_SOLUTION_ENGINE) += mach-se
119 machdir-$(CONFIG_SH_DREAMCAST) += mach-dreamcast
120 machdir-$(CONFIG_SH_SH03) += mach-sh03
121 machdir-$(CONFIG_SH_MIGOR) += mach-migor
122 machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09
123 machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24
124 machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786
125 machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto
126 machdir-$(CONFIG_SH_LANDISK) += mach-landisk
127 machdir-y += mach-common
132 # These are ordered by optimization level. A CPU family that is a subset
133 # of another (ie, SH-2A / SH-2), is picked up first, with increasing
134 # levels of genericness if nothing more suitable is situated in the
137 # As an example, in order of preference, SH-2A > SH-2 > common definitions.
139 cpuincdir-$(CONFIG_CPU_SH2A) += cpu-sh2a
140 cpuincdir-$(CONFIG_CPU_SH2) += cpu-sh2
141 cpuincdir-$(CONFIG_CPU_SH3) += cpu-sh3
142 cpuincdir-$(CONFIG_CPU_SH4A) += cpu-sh4a
143 cpuincdir-$(CONFIG_CPU_SH4) += cpu-sh4
144 cpuincdir-y += cpu-common # Must be last
146 drivers-y += arch/sh/drivers/
148 KBUILD_CPPFLAGS += $(addprefix -I $(srctree)/arch/sh/include/, $(cpuincdir-y) $(machdir-y))
149 KBUILD_CFLAGS += -pipe $(cflags-y)
150 KBUILD_AFLAGS += $(cflags-y)
152 ifeq ($(CONFIG_MCOUNT),y)
156 ifeq ($(CONFIG_DWARF_UNWINDER),y)
157 KBUILD_CFLAGS += -fasynchronous-unwind-tables
160 libs-y := arch/sh/lib/ $(libs-y)
162 BOOT_TARGETS = uImage uImage.bz2 uImage.gz uImage.lzma uImage.xz uImage.lzo \
163 uImage.srec uImage.bin zImage vmlinux.bin vmlinux.srec \
165 PHONY += $(BOOT_TARGETS)
167 all: $(notdir $(KBUILD_IMAGE))
169 $(BOOT_TARGETS): vmlinux
170 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
175 $(Q)$(MAKE) $(build)=arch/sh/tools include/generated/machtypes.h
178 $(Q)$(MAKE) $(build)=arch/sh/kernel/syscalls all
181 @echo ' zImage - Compressed kernel image'
182 @echo ' romImage - Compressed ROM image, if supported'
183 @echo ' vmlinux.srec - Create an ELF S-record'
184 @echo ' vmlinux.bin - Create an uncompressed binary image'
185 @echo '* uImage - Alias to bootable U-Boot image'
186 @echo ' uImage.srec - Create an S-record for U-Boot'
187 @echo ' uImage.bin - Kernel-only image for U-Boot (bin)'
188 @echo '* uImage.gz - Kernel-only image for U-Boot (gzip)'
189 @echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)'
190 @echo ' uImage.lzma - Kernel-only image for U-Boot (lzma)'
191 @echo ' uImage.xz - Kernel-only image for U-Boot (xz)'
192 @echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)'