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Source at commit 694c7fbe86b8a9c91392e505afcb9fcfc91deccc created 13 years 12 days ago. By Maarten ter Huurne, MIPS: JZ4740: Add cpufreq support | |
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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 | new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi) |
40 | |
41 | ifeq ($(new_nm),y) |
42 | NM := $(NM) --synthetic |
43 | endif |
44 | endif |
45 | |
46 | ifeq ($(CONFIG_PPC64),y) |
47 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
48 | OLDARCH := ppc64le |
49 | else |
50 | OLDARCH := ppc64 |
51 | endif |
52 | else |
53 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
54 | OLDARCH := ppcle |
55 | else |
56 | OLDARCH := ppc |
57 | endif |
58 | endif |
59 | |
60 | # It seems there are times we use this Makefile without |
61 | # including the config file, but this replicates the old behaviour |
62 | ifeq ($(CONFIG_WORD_SIZE),) |
63 | CONFIG_WORD_SIZE := 32 |
64 | endif |
65 | |
66 | UTS_MACHINE := $(OLDARCH) |
67 | |
68 | ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y) |
69 | override CC += -mlittle-endian -mno-strict-align |
70 | override AS += -mlittle-endian |
71 | override LD += -EL |
72 | override CROSS32CC += -mlittle-endian |
73 | override CROSS32AS += -mlittle-endian |
74 | LDEMULATION := lppc |
75 | GNUTARGET := powerpcle |
76 | MULTIPLEWORD := -mno-multiple |
77 | else |
78 | ifeq ($(call cc-option-yn,-mbig-endian),y) |
79 | override CC += -mbig-endian |
80 | override AS += -mbig-endian |
81 | endif |
82 | override LD += -EB |
83 | LDEMULATION := ppc |
84 | GNUTARGET := powerpc |
85 | MULTIPLEWORD := -mmultiple |
86 | endif |
87 | |
88 | ifeq ($(HAS_BIARCH),y) |
89 | override AS += -a$(CONFIG_WORD_SIZE) |
90 | override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION) |
91 | override CC += -m$(CONFIG_WORD_SIZE) |
92 | override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR) |
93 | endif |
94 | |
95 | LDFLAGS_vmlinux-y := -Bstatic |
96 | LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie |
97 | LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) |
98 | |
99 | ifeq ($(CONFIG_PPC64),y) |
100 | ifeq ($(call cc-option-yn,-mcmodel=medium),y) |
101 | # -mcmodel=medium breaks modules because it uses 32bit offsets from |
102 | # the TOC pointer to create pointers where possible. Pointers into the |
103 | # percpu data area are created by this method. |
104 | # |
105 | # The kernel module loader relocates the percpu data section from the |
106 | # original location (starting with 0xd...) to somewhere in the base |
107 | # kernel percpu data space (starting with 0xc...). We need a full |
108 | # 64bit relocation for this to work, hence -mcmodel=large. |
109 | KBUILD_CFLAGS_MODULE += -mcmodel=large |
110 | else |
111 | export NO_MINIMAL_TOC := -mno-minimal-toc |
112 | endif |
113 | endif |
114 | |
115 | CFLAGS-$(CONFIG_PPC64) := -mtraceback=no -mcall-aixdesc |
116 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1) |
117 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,-mminimal-toc) |
118 | CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions) |
119 | CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD) |
120 | |
121 | ifeq ($(CONFIG_PPC_BOOK3S_64),y) |
122 | CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) |
123 | else |
124 | CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64 |
125 | endif |
126 | |
127 | CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) |
128 | CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) |
129 | CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) |
130 | CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) |
131 | CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) |
132 | |
133 | # Altivec option not allowed with e500mc64 in GCC. |
134 | ifeq ($(CONFIG_ALTIVEC),y) |
135 | E5500_CPU := -mcpu=powerpc64 |
136 | else |
137 | E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64) |
138 | endif |
139 | CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU) |
140 | CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU)) |
141 | |
142 | ifeq ($(CONFIG_PPC32),y) |
143 | ifeq ($(CONFIG_PPC_E500MC),y) |
144 | CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc) |
145 | else |
146 | CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc) |
147 | endif |
148 | endif |
149 | |
150 | CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) |
151 | |
152 | KBUILD_CPPFLAGS += -Iarch/$(ARCH) |
153 | KBUILD_AFLAGS += -Iarch/$(ARCH) |
154 | KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) |
155 | CPP = $(CC) -E $(KBUILD_CFLAGS) |
156 | |
157 | CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ |
158 | |
159 | KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o |
160 | |
161 | # No AltiVec or VSX instructions when building kernel |
162 | KBUILD_CFLAGS += $(call cc-option,-mno-altivec) |
163 | KBUILD_CFLAGS += $(call cc-option,-mno-vsx) |
164 | |
165 | # No SPE instruction when building kernel |
166 | # (We use all available options to help semi-broken compilers) |
167 | KBUILD_CFLAGS += $(call cc-option,-mno-spe) |
168 | KBUILD_CFLAGS += $(call cc-option,-mspe=no) |
169 | |
170 | # Enable unit-at-a-time mode when possible. It shrinks the |
171 | # kernel considerably. |
172 | KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) |
173 | |
174 | # FIXME: the module load should be taught about the additional relocs |
175 | # generated by this. |
176 | # revert to pre-gcc-4.4 behaviour of .eh_frame |
177 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
178 | |
179 | # Never use string load/store instructions as they are |
180 | # often slow when they are implemented at all |
181 | KBUILD_CFLAGS += -mno-string |
182 | |
183 | ifeq ($(CONFIG_6xx),y) |
184 | KBUILD_CFLAGS += -mcpu=powerpc |
185 | endif |
186 | |
187 | # Work around a gcc code-gen bug with -fno-omit-frame-pointer. |
188 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
189 | KBUILD_CFLAGS += -mno-sched-epilog |
190 | endif |
191 | |
192 | cpu-as-$(CONFIG_4xx) += -Wa,-m405 |
193 | cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec |
194 | cpu-as-$(CONFIG_E200) += -Wa,-me200 |
195 | |
196 | KBUILD_AFLAGS += $(cpu-as-y) |
197 | KBUILD_CFLAGS += $(cpu-as-y) |
198 | |
199 | head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o |
200 | head-$(CONFIG_8xx) := arch/powerpc/kernel/head_8xx.o |
201 | head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o |
202 | head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o |
203 | head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o |
204 | |
205 | head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o |
206 | head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o |
207 | head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o |
208 | head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o |
209 | |
210 | core-y += arch/powerpc/kernel/ \ |
211 | arch/powerpc/mm/ \ |
212 | arch/powerpc/lib/ \ |
213 | arch/powerpc/sysdev/ \ |
214 | arch/powerpc/platforms/ \ |
215 | arch/powerpc/math-emu/ \ |
216 | arch/powerpc/crypto/ \ |
217 | arch/powerpc/net/ |
218 | core-$(CONFIG_XMON) += arch/powerpc/xmon/ |
219 | core-$(CONFIG_KVM) += arch/powerpc/kvm/ |
220 | core-$(CONFIG_PERF_EVENTS) += arch/powerpc/perf/ |
221 | |
222 | drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/ |
223 | |
224 | # Default to zImage, override when needed |
225 | all: zImage |
226 | |
227 | # With make 3.82 we cannot mix normal and wildcard targets |
228 | BOOT_TARGETS1 := zImage zImage.initrd uImage |
229 | BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.% |
230 | |
231 | PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2) |
232 | |
233 | boot := arch/$(ARCH)/boot |
234 | |
235 | ifeq ($(CONFIG_RELOCATABLE),y) |
236 | quiet_cmd_relocs_check = CALL $< |
237 | cmd_relocs_check = perl $< "$(OBJDUMP)" "$(obj)/vmlinux" |
238 | |
239 | PHONY += relocs_check |
240 | relocs_check: arch/powerpc/relocs_check.pl vmlinux |
241 | $(call cmd,relocs_check) |
242 | |
243 | zImage: relocs_check |
244 | endif |
245 | |
246 | $(BOOT_TARGETS1): vmlinux |
247 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
248 | $(BOOT_TARGETS2): vmlinux |
249 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
250 | |
251 | |
252 | bootwrapper_install: |
253 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
254 | |
255 | %.dtb: scripts |
256 | $(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@) |
257 | |
258 | define archhelp |
259 | @echo '* zImage - Build default images selected by kernel config' |
260 | @echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)' |
261 | @echo ' uImage - U-Boot native image format' |
262 | @echo ' cuImage.<dt> - Backwards compatible U-Boot image for older' |
263 | @echo ' versions which do not support device trees' |
264 | @echo ' dtbImage.<dt> - zImage with an embedded device tree blob' |
265 | @echo ' simpleImage.<dt> - Firmware independent image.' |
266 | @echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)' |
267 | @echo ' install - Install kernel using' |
268 | @echo ' (your) ~/bin/$(INSTALLKERNEL) or' |
269 | @echo ' (distribution) /sbin/$(INSTALLKERNEL) or' |
270 | @echo ' install to $$(INSTALL_PATH) and run lilo' |
271 | @echo ' *_defconfig - Select default config from arch/$(ARCH)/configs' |
272 | @echo '' |
273 | @echo ' Targets with <dt> embed a device tree blob inside the image' |
274 | @echo ' These targets support board with firmware that does not' |
275 | @echo ' support passing a device tree directly. Replace <dt> with the' |
276 | @echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory' |
277 | @echo ' (minus the .dts extension).' |
278 | endef |
279 | |
280 | install: |
281 | $(Q)$(MAKE) $(build)=$(boot) install |
282 | |
283 | vdso_install: |
284 | ifeq ($(CONFIG_PPC64),y) |
285 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ |
286 | endif |
287 | $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ |
288 | |
289 | archclean: |
290 | $(Q)$(MAKE) $(clean)=$(boot) |
291 | |
292 | archprepare: checkbin |
293 | |
294 | # Use the file '.tmp_gas_check' for binutils tests, as gas won't output |
295 | # to stdout and these checks are run even on install targets. |
296 | TOUT := .tmp_gas_check |
297 | |
298 | # Check gcc and binutils versions: |
299 | # - gcc-3.4 and binutils-2.14 are a fatal combination |
300 | # - Require gcc 4.0 or above on 64-bit |
301 | # - gcc-4.2.0 has issues compiling modules on 64-bit |
302 | checkbin: |
303 | @if test "$(call cc-version)" = "0304" ; then \ |
304 | if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \ |
305 | echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \ |
306 | echo 'correctly with gcc-3.4 and your version of binutils.'; \ |
307 | echo '*** Please upgrade your binutils or downgrade your gcc'; \ |
308 | false; \ |
309 | fi ; \ |
310 | fi |
311 | @if test "$(call cc-version)" -lt "0400" \ |
312 | && test "x${CONFIG_PPC64}" = "xy" ; then \ |
313 | echo -n "Sorry, GCC v4.0 or above is required to build " ; \ |
314 | echo "the 64-bit powerpc kernel." ; \ |
315 | false ; \ |
316 | fi |
317 | @if test "$(call cc-fullversion)" = "040200" \ |
318 | && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \ |
319 | echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \ |
320 | echo 'kernel with modules enabled.' ; \ |
321 | echo -n '*** Please use a different GCC version or ' ; \ |
322 | echo 'disable kernel modules' ; \ |
323 | false ; \ |
324 | fi |
325 | |
326 | CLEAN_FILES += $(TOUT) |
327 | |
328 |
Branches:
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javiroman/ks7010
jz-2.6.34
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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