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1 | # This file is included by the global makefile so that you can add your own |
2 | # architecture-specific flags and dependencies. Remember to do have actions |
3 | # for "archclean" and "archdep" for cleaning up and making dependencies for |
4 | # this architecture. |
5 | # |
6 | # This file is subject to the terms and conditions of the GNU General Public |
7 | # License. See the file "COPYING" in the main directory of this archive |
8 | # for more details. |
9 | # |
10 | # Copyright (C) 1994 by Linus Torvalds |
11 | # Changes for PPC by Gary Thomas |
12 | # Rewritten by Cort Dougan and Paul Mackerras |
13 | # |
14 | |
15 | HAS_BIARCH := $(call cc-option-yn, -m32) |
16 | |
17 | # Set default 32 bits cross compilers for vdso and boot wrapper |
18 | CROSS32_COMPILE ?= |
19 | |
20 | CROSS32CC := $(CROSS32_COMPILE)gcc |
21 | CROSS32AR := $(CROSS32_COMPILE)ar |
22 | |
23 | ifeq ($(HAS_BIARCH),y) |
24 | ifeq ($(CROSS32_COMPILE),) |
25 | CROSS32CC := $(CC) -m32 |
26 | CROSS32AR := GNUTARGET=elf32-powerpc $(AR) |
27 | endif |
28 | endif |
29 | |
30 | export CROSS32CC CROSS32AR |
31 | |
32 | ifeq ($(CROSS_COMPILE),) |
33 | KBUILD_DEFCONFIG := $(shell uname -m)_defconfig |
34 | else |
35 | KBUILD_DEFCONFIG := ppc64_defconfig |
36 | endif |
37 | |
38 | ifeq ($(CONFIG_PPC64),y) |
39 | OLDARCH := ppc64 |
40 | |
41 | new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) |
42 | |
43 | ifeq ($(new_nm),y) |
44 | NM := $(NM) --synthetic |
45 | endif |
46 | |
47 | else |
48 | OLDARCH := ppc |
49 | endif |
50 | |
51 | # It seems there are times we use this Makefile without |
52 | # including the config file, but this replicates the old behaviour |
53 | ifeq ($(CONFIG_WORD_SIZE),) |
54 | CONFIG_WORD_SIZE := 32 |
55 | endif |
56 | |
57 | UTS_MACHINE := $(OLDARCH) |
58 | |
59 | ifeq ($(HAS_BIARCH),y) |
60 | override AS += -a$(CONFIG_WORD_SIZE) |
61 | override LD += -m elf$(CONFIG_WORD_SIZE)ppc |
62 | override CC += -m$(CONFIG_WORD_SIZE) |
63 | override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR) |
64 | endif |
65 | |
66 | LDFLAGS_vmlinux-yy := -Bstatic |
67 | LDFLAGS_vmlinux-$(CONFIG_PPC64)$(CONFIG_RELOCATABLE) := -pie |
68 | LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-yy) |
69 | |
70 | CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc |
71 | CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple |
72 | KBUILD_CPPFLAGS += -Iarch/$(ARCH) |
73 | KBUILD_AFLAGS += -Iarch/$(ARCH) |
74 | KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) |
75 | CPP = $(CC) -E $(KBUILD_CFLAGS) |
76 | |
77 | CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ |
78 | |
79 | ifeq ($(CONFIG_PPC64),y) |
80 | GCC_BROKEN_VEC := $(call cc-ifversion, -lt, 0400, y) |
81 | |
82 | ifeq ($(CONFIG_POWER4_ONLY),y) |
83 | ifeq ($(CONFIG_ALTIVEC),y) |
84 | ifeq ($(GCC_BROKEN_VEC),y) |
85 | KBUILD_CFLAGS += $(call cc-option,-mcpu=970) |
86 | else |
87 | KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) |
88 | endif |
89 | else |
90 | KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) |
91 | endif |
92 | else |
93 | KBUILD_CFLAGS += $(call cc-option,-mtune=power4) |
94 | endif |
95 | endif |
96 | |
97 | KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
98 | |
99 | ifeq ($(CONFIG_TUNE_CELL),y) |
100 | KBUILD_CFLAGS += $(call cc-option,-mtune=cell) |
101 | endif |
102 | |
103 | # No AltiVec instruction when building kernel |
104 | KBUILD_CFLAGS += $(call cc-option,-mno-altivec) |
105 | |
106 | # No SPE instruction when building kernel |
107 | # (We use all available options to help semi-broken compilers) |
108 | KBUILD_CFLAGS += $(call cc-option,-mno-spe) |
109 | KBUILD_CFLAGS += $(call cc-option,-mspe=no) |
110 | |
111 | # Enable unit-at-a-time mode when possible. It shrinks the |
112 | # kernel considerably. |
113 | KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) |
114 | |
115 | # FIXME: the module load should be taught about the additional relocs |
116 | # generated by this. |
117 | # revert to pre-gcc-4.4 behaviour of .eh_frame |
118 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
119 | |
120 | # Never use string load/store instructions as they are |
121 | # often slow when they are implemented at all |
122 | KBUILD_CFLAGS += -mno-string |
123 | |
124 | ifeq ($(CONFIG_6xx),y) |
125 | KBUILD_CFLAGS += -mcpu=powerpc |
126 | endif |
127 | |
128 | # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
129 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
130 | KBUILD_CFLAGS += -mno-sched-epilog |
131 | endif |
132 | |
133 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
134 | cpu-as-$(CONFIG_6xx) += -Wa,-maltivec |
135 | cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec |
136 | cpu-as-$(CONFIG_E500) += -Wa,-me500 |
137 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
138 | |
139 | KBUILD_AFLAGS += $(cpu-as-y) |
140 | KBUILD_CFLAGS += $(cpu-as-y) |
141 | |
142 | head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o |
143 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
144 | head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o |
145 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
146 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o |
147 | |
148 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
149 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
150 | head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
151 | |
152 | core-y += arch/powerpc/kernel/ \ |
153 | arch/powerpc/mm/ \ |
154 | arch/powerpc/lib/ \ |
155 | arch/powerpc/sysdev/ \ |
156 | arch/powerpc/platforms/ \ |
157 | arch/powerpc/math-emu/ |
158 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
159 | core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
160 | |
161 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ |
162 | |
163 | # Default to zImage, override when needed |
164 | all: zImage |
165 | |
166 | # With make 3.82 we cannot mix normal and wildcard targets |
167 | BOOT_TARGETS1 := zImage zImage.initrd uImage |
168 | BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% |
169 | |
170 | PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) |
171 | |
172 | boot := arch/$(ARCH)/boot |
173 | |
174 | ifeq ($(CONFIG_RELOCATABLE),y) |
175 | quiet_cmd_relocs_check = CALL $< |
176 | cmd_relocs_check = perl $< "$(OBJDUMP)" "$(obj)/vmlinux" |
177 | |
178 | PHONY += relocs_check |
179 | relocs_check: arch/powerpc/relocs_check.pl vmlinux |
180 | $(call cmd,relocs_check) |
181 | |
182 | zImage: relocs_check |
183 | endif |
184 | |
185 | $(BOOT_TARGETS1): vmlinux |
186 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
187 | $(BOOT_TARGETS2): vmlinux |
188 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
189 | |
190 | |
191 | bootwrapper_install: |
192 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
193 | |
194 | %.dtb: |
195 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
196 | |
197 | define archhelp |
198 | @echo '* zImage - Build default images selected by kernel config' |
199 | @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' |
200 | @echo ' uImage - U-Boot native image format' |
201 | @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' |
202 | @echo ' versions which do not support device trees' |
203 | @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' |
204 | @echo ' simpleImage.<dt> - Firmware independent image.' |
205 | @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' |
206 | @echo ' install - Install kernel using' |
207 | @echo ' (your) ~/bin/$(INSTALLKERNEL) or' |
208 | @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' |
209 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
210 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
211 | @echo '' |
212 | @echo ' Targets with <dt> embed a device tree blob inside the image' |
213 | @echo ' These targets support board with firmware that does not' |
214 | @echo ' support passing a device tree directly. Replace <dt> with the' |
215 | @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' |
216 | @echo ' (minus the .dts extension).' |
217 | endef |
218 | |
219 | install: |
220 | $(Q)$(MAKE) $(build)=$(boot) install |
221 | |
222 | vdso_install: |
223 | ifeq ($(CONFIG_PPC64),y) |
224 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ |
225 | endif |
226 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ |
227 | |
228 | archclean: |
229 | $(Q)$(MAKE) $(clean)=$(boot) |
230 | |
231 | archprepare: checkbin |
232 | |
233 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
234 | # to stdout and these checks are run even on install targets. |
235 | TOUT := .tmp_gas_check |
236 | # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later for altivec |
237 | # instructions. |
238 | # gcc-3.4 and binutils-2.14 are a fatal combination. |
239 | |
240 | checkbin: |
241 | @if test "$(call cc-version)" = "0304" ; then \ |
242 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
243 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ |
244 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ |
245 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ |
246 | false; \ |
247 | fi ; \ |
248 | fi |
249 | @if test "$(call cc-fullversion)" = "040200" \ |
250 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
251 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ |
252 | echo 'kernel with modules enabled.' ; \ |
253 | echo -n '*** Please use a different GCC version or ' ; \ |
254 | echo 'disable kernel modules' ; \ |
255 | false ; \ |
256 | fi |
257 | @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
258 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ |
259 | echo 'correctly with old versions of binutils.' ; \ |
260 | echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ |
261 | false ; \ |
262 | fi |
263 | |
264 | CLEAN_FILES += $(TOUT) |
265 | |
266 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9