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1 | # | |
2 | # (C) Copyright 2000-2013 | |
3 | # Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | # | |
5 | # SPDX-License-Identifier: GPL-2.0+ | |
6 | # | |
7 | ||
8 | VERSION = 2014 | |
9 | PATCHLEVEL = 01 | |
10 | SUBLEVEL = | |
11 | EXTRAVERSION = | |
12 | NAME = | |
13 | ||
14 | # *DOCUMENTATION* | |
15 | # To see a list of typical targets execute "make help" | |
16 | # More info can be located in ./README | |
17 | # Comments in this file are targeted only to the developer, do not | |
18 | # expect to learn how to build the kernel reading this file. | |
19 | ||
20 | # Do not: | |
21 | # o use make's built-in rules and variables | |
22 | # (this increases performance and avoids hard-to-debug behaviour); | |
23 | # o print "Entering directory ..."; | |
24 | MAKEFLAGS += -rR --no-print-directory | |
25 | ||
26 | # Avoid funny character set dependencies | |
27 | unexport LC_ALL | |
28 | LC_COLLATE=C | |
29 | LC_NUMERIC=C | |
30 | export LC_COLLATE LC_NUMERIC | |
31 | ||
32 | # We are using a recursive build, so we need to do a little thinking | |
33 | # to get the ordering right. | |
34 | # | |
35 | # Most importantly: sub-Makefiles should only ever modify files in | |
36 | # their own directory. If in some directory we have a dependency on | |
37 | # a file in another dir (which doesn't happen often, but it's often | |
38 | # unavoidable when linking the built-in.o targets which finally | |
39 | # turn into vmlinux), we will call a sub make in that other dir, and | |
40 | # after that we are sure that everything which is in that other dir | |
41 | # is now up to date. | |
42 | # | |
43 | # The only cases where we need to modify files which have global | |
44 | # effects are thus separated out and done before the recursive | |
45 | # descending is started. They are now explicitly listed as the | |
46 | # prepare rule. | |
47 | ||
48 | # To put more focus on warnings, be less verbose as default | |
49 | # Use 'make V=1' to see the full commands | |
50 | ||
51 | ifeq ("$(origin V)", "command line") | |
52 | KBUILD_VERBOSE = $(V) | |
53 | endif | |
54 | ifndef KBUILD_VERBOSE | |
55 | KBUILD_VERBOSE = 0 | |
56 | endif | |
57 | ||
58 | # Call a source code checker (by default, "sparse") as part of the | |
59 | # C compilation. | |
60 | # | |
61 | # Use 'make C=1' to enable checking of only re-compiled files. | |
62 | # Use 'make C=2' to enable checking of *all* source files, regardless | |
63 | # of whether they are re-compiled or not. | |
64 | # | |
65 | # See the file "Documentation/sparse.txt" for more details, including | |
66 | # where to get the "sparse" utility. | |
67 | ||
68 | ifeq ("$(origin C)", "command line") | |
69 | KBUILD_CHECKSRC = $(C) | |
70 | endif | |
71 | ifndef KBUILD_CHECKSRC | |
72 | KBUILD_CHECKSRC = 0 | |
73 | endif | |
74 | ||
75 | # Use make M=dir to specify directory of external module to build | |
76 | # Old syntax make ... SUBDIRS=$PWD is still supported | |
77 | # Setting the environment variable KBUILD_EXTMOD take precedence | |
78 | ifdef SUBDIRS | |
79 | KBUILD_EXTMOD ?= $(SUBDIRS) | |
80 | endif | |
81 | ||
82 | ifeq ("$(origin M)", "command line") | |
83 | KBUILD_EXTMOD := $(M) | |
84 | endif | |
85 | ||
86 | # kbuild supports saving output files in a separate directory. | |
87 | # To locate output files in a separate directory two syntaxes are supported. | |
88 | # In both cases the working directory must be the root of the kernel src. | |
89 | # 1) O= | |
90 | # Use "make O=dir/to/store/output/files/" | |
91 | # | |
92 | # 2) Set KBUILD_OUTPUT | |
93 | # Set the environment variable KBUILD_OUTPUT to point to the directory | |
94 | # where the output files shall be placed. | |
95 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | |
96 | # make | |
97 | # | |
98 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | |
99 | # variable. | |
100 | ||
101 | ||
102 | # KBUILD_SRC is set on invocation of make in OBJ directory | |
103 | # KBUILD_SRC is not intended to be used by the regular user (for now) | |
104 | ifeq ($(KBUILD_SRC),) | |
105 | ||
106 | # OK, Make called in directory where kernel src resides | |
107 | # Do we want to locate output files in a separate directory? | |
108 | ifeq ("$(origin O)", "command line") | |
109 | KBUILD_OUTPUT := $(O) | |
110 | endif | |
111 | ||
112 | ifeq ("$(origin W)", "command line") | |
113 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) | |
114 | endif | |
115 | ||
116 | # That's our default target when none is given on the command line | |
117 | PHONY := _all | |
118 | _all: | |
119 | ||
120 | # Cancel implicit rules on top Makefile | |
121 | $(CURDIR)/Makefile Makefile: ; | |
122 | ||
123 | ifneq ($(KBUILD_OUTPUT),) | |
124 | # Invoke a second make in the output directory, passing relevant variables | |
125 | # check that the output directory actually exists | |
126 | saved-output := $(KBUILD_OUTPUT) | |
127 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | |
128 | $(if $(KBUILD_OUTPUT),, \ | |
129 | $(error output directory "$(saved-output)" does not exist)) | |
130 | ||
131 | PHONY += $(MAKECMDGOALS) sub-make | |
132 | ||
133 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | |
134 | @: | |
135 | ||
136 | sub-make: FORCE | |
137 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | |
138 | KBUILD_SRC=$(CURDIR) \ | |
139 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | |
140 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | |
141 | ||
142 | # Leave processing to above invocation of make | |
143 | skip-makefile := 1 | |
144 | endif # ifneq ($(KBUILD_OUTPUT),) | |
145 | endif # ifeq ($(KBUILD_SRC),) | |
146 | ||
147 | # We process the rest of the Makefile if this is the final invocation of make | |
148 | ifeq ($(skip-makefile),) | |
149 | ||
150 | # If building an external module we do not care about the all: rule | |
151 | # but instead _all depend on modules | |
152 | PHONY += all | |
153 | ifeq ($(KBUILD_EXTMOD),) | |
154 | _all: all | |
155 | else | |
156 | _all: modules | |
157 | endif | |
158 | ||
159 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | |
160 | objtree := $(CURDIR) | |
161 | src := $(srctree) | |
162 | obj := $(objtree) | |
163 | ||
164 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | |
165 | ||
166 | export srctree objtree VPATH | |
167 | ||
168 | OBJTREE := $(objtree) | |
169 | SPLTREE := $(OBJTREE)/spl | |
170 | TPLTREE := $(OBJTREE)/tpl | |
171 | SRCTREE := $(srctree) | |
172 | TOPDIR := $(SRCTREE) | |
173 | export TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE | |
174 | ||
175 | MKCONFIG := $(SRCTREE)/mkconfig | |
176 | export MKCONFIG | |
177 | ||
178 | # Make sure CDPATH settings don't interfere | |
179 | unexport CDPATH | |
180 | ||
181 | ######################################################################### | |
182 | ||
183 | TIMESTAMP_FILE = include/generated/timestamp_autogenerated.h | |
184 | VERSION_FILE = include/generated/version_autogenerated.h | |
185 | ||
186 | HOSTARCH := $(shell uname -m | \ | |
187 | sed -e s/i.86/x86/ \ | |
188 | -e s/sun4u/sparc64/ \ | |
189 | -e s/arm.*/arm/ \ | |
190 | -e s/sa110/arm/ \ | |
191 | -e s/ppc64/powerpc/ \ | |
192 | -e s/ppc/powerpc/ \ | |
193 | -e s/macppc/powerpc/\ | |
194 | -e s/sh.*/sh/) | |
195 | ||
196 | HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ | |
197 | sed -e 's/\(cygwin\).*/cygwin/') | |
198 | ||
199 | export HOSTARCH HOSTOS | |
200 | ||
201 | # Deal with colliding definitions from tcsh etc. | |
202 | VENDOR= | |
203 | ||
204 | ######################################################################### | |
205 | ||
206 | # set default to nothing for native builds | |
207 | ifeq ($(HOSTARCH),$(ARCH)) | |
208 | CROSS_COMPILE ?= | |
209 | endif | |
210 | ||
211 | # SHELL used by kbuild | |
212 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | |
213 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | |
214 | else echo sh; fi ; fi) | |
215 | ||
216 | HOSTCC = gcc | |
217 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | |
218 | ||
219 | ifeq ($(HOSTOS),cygwin) | |
220 | HOSTCFLAGS += -ansi | |
221 | endif | |
222 | ||
223 | # Mac OS X / Darwin's C preprocessor is Apple specific. It | |
224 | # generates numerous errors and warnings. We want to bypass it | |
225 | # and use GNU C's cpp. To do this we pass the -traditional-cpp | |
226 | # option to the compiler. Note that the -traditional-cpp flag | |
227 | # DOES NOT have the same semantics as GNU C's flag, all it does | |
228 | # is invoke the GNU preprocessor in stock ANSI/ISO C fashion. | |
229 | # | |
230 | # Apple's linker is similar, thanks to the new 2 stage linking | |
231 | # multiple symbol definitions are treated as errors, hence the | |
232 | # -multiply_defined suppress option to turn off this error. | |
233 | # | |
234 | ifeq ($(HOSTOS),darwin) | |
235 | # get major and minor product version (e.g. '10' and '6' for Snow Leopard) | |
236 | DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') | |
237 | DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') | |
238 | ||
239 | os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ | |
240 | $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) | |
241 | ||
242 | # Snow Leopards build environment has no longer restrictions as described above | |
243 | HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") | |
244 | HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") | |
245 | HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") | |
246 | endif | |
247 | ||
248 | # Decide whether to build built-in, modular, or both. | |
249 | # Normally, just do built-in. | |
250 | ||
251 | KBUILD_MODULES := | |
252 | KBUILD_BUILTIN := 1 | |
253 | ||
254 | # If we have only "make modules", don't compile built-in objects. | |
255 | # When we're building modules with modversions, we need to consider | |
256 | # the built-in objects during the descend as well, in order to | |
257 | # make sure the checksums are up to date before we record them. | |
258 | ||
259 | ifeq ($(MAKECMDGOALS),modules) | |
260 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | |
261 | endif | |
262 | ||
263 | # If we have "make <whatever> modules", compile modules | |
264 | # in addition to whatever we do anyway. | |
265 | # Just "make" or "make all" shall build modules as well | |
266 | ||
267 | # U-Boot does not need modules | |
268 | #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | |
269 | # KBUILD_MODULES := 1 | |
270 | #endif | |
271 | ||
272 | #ifeq ($(MAKECMDGOALS),) | |
273 | # KBUILD_MODULES := 1 | |
274 | #endif | |
275 | ||
276 | export KBUILD_MODULES KBUILD_BUILTIN | |
277 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | |
278 | ||
279 | # Beautify output | |
280 | # --------------------------------------------------------------------------- | |
281 | # | |
282 | # Normally, we echo the whole command before executing it. By making | |
283 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | |
284 | # $(quiet) to choose other forms of output instead, e.g. | |
285 | # | |
286 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | |
287 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | |
288 | # | |
289 | # If $(quiet) is empty, the whole command will be printed. | |
290 | # If it is set to "quiet_", only the short version will be printed. | |
291 | # If it is set to "silent_", nothing will be printed at all, since | |
292 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | |
293 | # | |
294 | # A simple variant is to prefix commands with $(Q) - that's useful | |
295 | # for commands that shall be hidden in non-verbose mode. | |
296 | # | |
297 | # $(Q)ln $@ :< | |
298 | # | |
299 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | |
300 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | |
301 | ||
302 | ifeq ($(KBUILD_VERBOSE),1) | |
303 | quiet = | |
304 | Q = | |
305 | else | |
306 | quiet=quiet_ | |
307 | Q = @ | |
308 | endif | |
309 | ||
310 | # If the user is running make -s (silent mode), suppress echoing of | |
311 | # commands | |
312 | ||
313 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) | |
314 | quiet=silent_ | |
315 | endif | |
316 | ||
317 | export quiet Q KBUILD_VERBOSE | |
318 | ||
319 | ||
320 | # Look for make include files relative to root of kernel src | |
321 | MAKEFLAGS += --include-dir=$(srctree) | |
322 | ||
323 | # We need some generic definitions (do not try to remake the file). | |
324 | $(srctree)/scripts/Kbuild.include: ; | |
325 | include $(srctree)/scripts/Kbuild.include | |
326 | ||
327 | # Make variables (CC, etc...) | |
328 | ||
329 | AS = $(CROSS_COMPILE)as | |
330 | # Always use GNU ld | |
331 | ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) | |
332 | LD = $(CROSS_COMPILE)ld.bfd | |
333 | else | |
334 | LD = $(CROSS_COMPILE)ld | |
335 | endif | |
336 | CC = $(CROSS_COMPILE)gcc | |
337 | CPP = $(CC) -E | |
338 | AR = $(CROSS_COMPILE)ar | |
339 | NM = $(CROSS_COMPILE)nm | |
340 | LDR = $(CROSS_COMPILE)ldr | |
341 | STRIP = $(CROSS_COMPILE)strip | |
342 | OBJCOPY = $(CROSS_COMPILE)objcopy | |
343 | OBJDUMP = $(CROSS_COMPILE)objdump | |
344 | AWK = awk | |
345 | RANLIB = $(CROSS_COMPILE)RANLIB | |
346 | DTC = dtc | |
347 | CHECK = sparse | |
348 | ||
349 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | |
350 | -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) | |
351 | ||
352 | KBUILD_CPPFLAGS := -D__KERNEL__ | |
353 | ||
354 | KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ | |
355 | -Wno-format-security \ | |
356 | -fno-builtin -ffreestanding | |
357 | KBUILD_AFLAGS := -D__ASSEMBLY__ | |
358 | ||
359 | U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | |
360 | ||
361 | export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION | |
362 | export ARCH CPU BOARD VENDOR SOC | |
363 | export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC | |
364 | export CPP AR NM LDR STRIP OBJCOPY OBJDUMP | |
365 | export MAKE AWK | |
366 | export DTC CHECK CHECKFLAGS | |
367 | ||
368 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE | |
369 | export KBUILD_CFLAGS KBUILD_AFLAGS | |
370 | ||
371 | # When compiling out-of-tree modules, put MODVERDIR in the module | |
372 | # tree rather than in the kernel tree. The kernel tree might | |
373 | # even be read-only. | |
374 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | |
375 | ||
376 | # Files to ignore in find ... statements | |
377 | ||
378 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \ | |
379 | -o -name .pc -o -name .hg -o -name .git \) -prune -o | |
380 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ | |
381 | --exclude CVS --exclude .pc --exclude .hg --exclude .git | |
382 | ||
383 | # =========================================================================== | |
384 | # Rules shared between *config targets and build targets | |
385 | ||
386 | # Basic helpers built in scripts/ | |
387 | PHONY += scripts_basic | |
388 | scripts_basic: | |
389 | $(Q)$(MAKE) $(build)=scripts/basic | |
390 | $(Q)rm -f .tmp_quiet_recordmcount | |
391 | ||
392 | # To avoid any implicit rule to kick in, define an empty command. | |
393 | scripts/basic/%: scripts_basic ; | |
394 | ||
395 | # To make sure we do not include .config for any of the *config targets | |
396 | # catch them early, and hand them over to scripts/kconfig/Makefile | |
397 | # It is allowed to specify more targets when calling make, including | |
398 | # mixing *config targets and build targets. | |
399 | # For example 'make oldconfig all'. | |
400 | # Detect when mixed targets is specified, and make a second invocation | |
401 | # of make so .config is not included in this case either (for *config). | |
402 | ||
403 | no-dot-config-targets := clean clobber mrproper distclean \ | |
404 | cscope TAGS %tags help %docs check% coccicheck \ | |
405 | backup | |
406 | ||
407 | config-targets := 0 | |
408 | mixed-targets := 0 | |
409 | dot-config := 1 | |
410 | ||
411 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | |
412 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | |
413 | dot-config := 0 | |
414 | endif | |
415 | endif | |
416 | ||
417 | ifeq ($(KBUILD_EXTMOD),) | |
418 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | |
419 | config-targets := 1 | |
420 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | |
421 | mixed-targets := 1 | |
422 | endif | |
423 | endif | |
424 | endif | |
425 | ||
426 | ifeq ($(mixed-targets),1) | |
427 | # =========================================================================== | |
428 | # We're called with mixed targets (*config and build targets). | |
429 | # Handle them one by one. | |
430 | ||
431 | %:: FORCE | |
432 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | |
433 | ||
434 | else | |
435 | ifeq ($(config-targets),1) | |
436 | # =========================================================================== | |
437 | # *config targets only - make sure prerequisites are updated, and descend | |
438 | # in scripts/kconfig to make the *config target | |
439 | ||
440 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | |
441 | # KBUILD_DEFCONFIG may point out an alternative default configuration | |
442 | # used for 'make defconfig' | |
443 | ||
444 | %_config:: | |
445 | @$(MKCONFIG) -A $(@:_config=) | |
446 | ||
447 | else | |
448 | # =========================================================================== | |
449 | # Build targets only - this includes vmlinux, arch specific targets, clean | |
450 | # targets and others. In general all targets except *config targets. | |
451 | ||
452 | # load ARCH, BOARD, and CPU configuration | |
453 | -include include/config.mk | |
454 | ||
455 | ifeq ($(dot-config),1) | |
456 | # Read in config | |
457 | -include include/autoconf.mk | |
458 | -include include/autoconf.mk.dep | |
459 | ||
460 | # load other configuration | |
461 | include $(srctree)/config.mk | |
462 | ||
463 | ifeq ($(wildcard include/config.mk),) | |
464 | $(error "System not configured - see README") | |
465 | endif | |
466 | ||
467 | ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) | |
468 | ifneq ($(CONFIG_SYS_GENERIC_BOARD),) | |
469 | $(error Your architecture does not support generic board. \ | |
470 | Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file) | |
471 | endif | |
472 | endif | |
473 | ||
474 | # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use | |
475 | # that (or fail if absent). Otherwise, search for a linker script in a | |
476 | # standard location. | |
477 | ||
478 | LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT)) | |
479 | ||
480 | ifndef LDSCRIPT | |
481 | #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug | |
482 | ifdef CONFIG_SYS_LDSCRIPT | |
483 | # need to strip off double quotes | |
484 | LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%) | |
485 | endif | |
486 | endif | |
487 | ||
488 | # If there is no specified link script, we look in a number of places for it | |
489 | ifndef LDSCRIPT | |
490 | ifeq ($(CONFIG_NAND_U_BOOT),y) | |
491 | LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds | |
492 | ifeq ($(wildcard $(LDSCRIPT)),) | |
493 | LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds | |
494 | endif | |
495 | endif | |
496 | ifeq ($(wildcard $(LDSCRIPT)),) | |
497 | LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds | |
498 | endif | |
499 | ifeq ($(wildcard $(LDSCRIPT)),) | |
500 | LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds | |
501 | endif | |
502 | ifeq ($(wildcard $(LDSCRIPT)),) | |
503 | LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds | |
504 | # We don't expect a Makefile here | |
505 | LDSCRIPT_MAKEFILE_DIR = | |
506 | endif | |
507 | ifeq ($(wildcard $(LDSCRIPT)),) | |
508 | $(error could not find linker script) | |
509 | endif | |
510 | endif | |
511 | ||
512 | else | |
513 | ||
514 | ||
515 | endif # $(dot-config) | |
516 | ||
517 | KBUILD_CFLAGS += -Os #-fomit-frame-pointer | |
518 | ||
519 | ifdef BUILD_TAG | |
520 | KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' | |
521 | endif | |
522 | ||
523 | KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) | |
524 | ||
525 | KBUILD_CFLAGS += -g | |
526 | # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> | |
527 | # option to the assembler. | |
528 | KBUILD_AFLAGS += -g | |
529 | ||
530 | # Report stack usage if supported | |
531 | KBUILD_CFLAGS += $(call cc-option,-fstack-usage) | |
532 | ||
533 | KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) | |
534 | ||
535 | # turn jbsr into jsr for m68k | |
536 | ifeq ($(ARCH),m68k) | |
537 | ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) | |
538 | KBUILD_AFLAGS += -Wa,-gstabs,-S | |
539 | endif | |
540 | endif | |
541 | ||
542 | ifneq ($(CONFIG_SYS_TEXT_BASE),) | |
543 | KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) | |
544 | endif | |
545 | ||
546 | export CONFIG_SYS_TEXT_BASE | |
547 | ||
548 | # Use UBOOTINCLUDE when you must reference the include/ directory. | |
549 | # Needed to be compatible with the O= option | |
550 | UBOOTINCLUDE := | |
551 | ifneq ($(OBJTREE),$(SRCTREE)) | |
552 | UBOOTINCLUDE += -I$(OBJTREE)/include | |
553 | endif | |
554 | UBOOTINCLUDE += -I$(srctree)/include \ | |
555 | -I$(srctree)/arch/$(ARCH)/include | |
556 | ||
557 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | |
558 | CHECKFLAGS += $(NOSTDINC_FLAGS) | |
559 | ||
560 | # FIX ME | |
561 | cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS) | |
562 | c_flags := $(KBUILD_CFLAGS) $(cpp_flags) | |
563 | ||
564 | .PHONY : $(VERSION_FILE) $(TIMESTAMP_FILE) | |
565 | ||
566 | ######################################################################### | |
567 | # U-Boot objects....order is important (i.e. start must be first) | |
568 | ||
569 | head-y := $(CPUDIR)/start.o | |
570 | head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o | |
571 | head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o | |
572 | ||
573 | HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) | |
574 | ||
575 | libs-y += lib/ | |
576 | libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ | |
577 | libs-y += $(CPUDIR)/ | |
578 | ifdef SOC | |
579 | libs-y += $(CPUDIR)/$(SOC)/ | |
580 | endif | |
581 | libs-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/ | |
582 | libs-$(CONFIG_OF_EMBED) += dts/ | |
583 | libs-y += arch/$(ARCH)/lib/ | |
584 | libs-y += fs/ | |
585 | libs-y += net/ | |
586 | libs-y += disk/ | |
587 | libs-y += drivers/ | |
588 | libs-y += drivers/dma/ | |
589 | libs-y += drivers/gpio/ | |
590 | libs-y += drivers/i2c/ | |
591 | libs-y += drivers/input/ | |
592 | libs-y += drivers/mmc/ | |
593 | libs-y += drivers/mtd/ | |
594 | libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ | |
595 | libs-y += drivers/mtd/onenand/ | |
596 | libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ | |
597 | libs-y += drivers/mtd/spi/ | |
598 | libs-y += drivers/net/ | |
599 | libs-y += drivers/net/phy/ | |
600 | libs-y += drivers/pci/ | |
601 | libs-y += drivers/power/ \ | |
602 | drivers/power/fuel_gauge/ \ | |
603 | drivers/power/mfd/ \ | |
604 | drivers/power/pmic/ \ | |
605 | drivers/power/battery/ | |
606 | libs-y += drivers/spi/ | |
607 | libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ | |
608 | libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ | |
609 | libs-y += drivers/serial/ | |
610 | libs-y += drivers/usb/eth/ | |
611 | libs-y += drivers/usb/gadget/ | |
612 | libs-y += drivers/usb/host/ | |
613 | libs-y += drivers/usb/musb/ | |
614 | libs-y += drivers/usb/musb-new/ | |
615 | libs-y += drivers/usb/phy/ | |
616 | libs-y += drivers/usb/ulpi/ | |
617 | libs-y += common/ | |
618 | libs-y += lib/libfdt/ | |
619 | libs-$(CONFIG_API) += api/ | |
620 | libs-$(CONFIG_HAS_POST) += post/ | |
621 | libs-y += test/ | |
622 | ||
623 | ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) | |
624 | libs-y += arch/$(ARCH)/imx-common/ | |
625 | endif | |
626 | ||
627 | libs-$(CONFIG_ARM) += arch/arm/cpu/ | |
628 | libs-$(CONFIG_PPC) += arch/powerpc/cpu/ | |
629 | ||
630 | libs-y += board/$(BOARDDIR)/ | |
631 | ||
632 | libs-y := $(sort $(libs-y)) | |
633 | ||
634 | u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples | |
635 | ||
636 | u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) | |
637 | ||
638 | libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) | |
639 | ||
640 | u-boot-init := $(head-y) | |
641 | u-boot-main := $(libs-y) | |
642 | ||
643 | ||
644 | # Add GCC lib | |
645 | ifdef USE_PRIVATE_LIBGCC | |
646 | ifeq ("$(USE_PRIVATE_LIBGCC)", "yes") | |
647 | PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a | |
648 | else | |
649 | PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc | |
650 | endif | |
651 | else | |
652 | PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc | |
653 | endif | |
654 | PLATFORM_LIBS += $(PLATFORM_LIBGCC) | |
655 | export PLATFORM_LIBS | |
656 | ||
657 | # Special flags for CPP when processing the linker script. | |
658 | # Pass the version down so we can handle backwards compatibility | |
659 | # on the fly. | |
660 | LDPPFLAGS += \ | |
661 | -include $(TOPDIR)/include/u-boot/u-boot.lds.h \ | |
662 | -DCPUDIR=$(CPUDIR) \ | |
663 | $(shell $(LD) --version | \ | |
664 | sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') | |
665 | ||
666 | ######################################################################### | |
667 | ######################################################################### | |
668 | ||
669 | ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) | |
670 | BOARD_SIZE_CHECK = \ | |
671 | @actual=`wc -c $@ | awk '{print $$1}'`; \ | |
672 | limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ | |
673 | if test $$actual -gt $$limit; then \ | |
674 | echo "$@ exceeds file size limit:" >&2 ; \ | |
675 | echo " limit: $$limit bytes" >&2 ; \ | |
676 | echo " actual: $$actual bytes" >&2 ; \ | |
677 | echo " excess: $$((actual - limit)) bytes" >&2; \ | |
678 | exit 1; \ | |
679 | fi | |
680 | else | |
681 | BOARD_SIZE_CHECK = | |
682 | endif | |
683 | ||
684 | # Statically apply RELA-style relocations (currently arm64 only) | |
685 | ifneq ($(CONFIG_STATIC_RELA),) | |
686 | # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base | |
687 | DO_STATIC_RELA = \ | |
688 | start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ | |
689 | end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ | |
690 | tools/relocate-rela $(2) $(3) $$start $$end | |
691 | else | |
692 | DO_STATIC_RELA = | |
693 | endif | |
694 | ||
695 | # Always append ALL so that arch config.mk's can add custom ones | |
696 | ALL-y += u-boot.srec u-boot.bin System.map | |
697 | ||
698 | ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin | |
699 | ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin | |
700 | ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl | |
701 | ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin | |
702 | ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img | |
703 | ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin | |
704 | ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin | |
705 | ifneq ($(CONFIG_SPL_TARGET),) | |
706 | ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) | |
707 | endif | |
708 | ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf | |
709 | ||
710 | # enable combined SPL/u-boot/dtb rules for tegra | |
711 | ifneq ($(CONFIG_TEGRA),) | |
712 | ifeq ($(CONFIG_SPL),y) | |
713 | ifeq ($(CONFIG_OF_SEPARATE),y) | |
714 | ALL-y += u-boot-dtb-tegra.bin | |
715 | else | |
716 | ALL-y += u-boot-nodtb-tegra.bin | |
717 | endif | |
718 | endif | |
719 | endif | |
720 | ||
721 | LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL) | |
722 | ifneq ($(CONFIG_SYS_TEXT_BASE),) | |
723 | LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) | |
724 | endif | |
725 | ||
726 | all: $(ALL-y) | |
727 | ||
728 | u-boot.dtb: checkdtc u-boot | |
729 | $(MAKE) $(build)=dts binary | |
730 | mv dts/dt.dtb $@ | |
731 | ||
732 | u-boot-dtb.bin: u-boot.bin u-boot.dtb | |
733 | cat $^ >$@ | |
734 | ||
735 | u-boot.hex: u-boot | |
736 | $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ | |
737 | ||
738 | u-boot.srec: u-boot | |
739 | $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ | |
740 | ||
741 | u-boot.bin: u-boot | |
742 | $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ | |
743 | $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) | |
744 | $(BOARD_SIZE_CHECK) | |
745 | ||
746 | u-boot.ldr: u-boot | |
747 | $(CREATE_LDR_ENV) | |
748 | $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) | |
749 | $(BOARD_SIZE_CHECK) | |
750 | ||
751 | u-boot.ldr.hex: u-boot.ldr | |
752 | $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary | |
753 | ||
754 | u-boot.ldr.srec: u-boot.ldr | |
755 | $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary | |
756 | ||
757 | # | |
758 | # U-Boot entry point, needed for booting of full-blown U-Boot | |
759 | # from the SPL U-Boot version. | |
760 | # | |
761 | ifndef CONFIG_SYS_UBOOT_START | |
762 | CONFIG_SYS_UBOOT_START := 0 | |
763 | endif | |
764 | ||
765 | u-boot.img: u-boot.bin | |
766 | tools/mkimage -A $(ARCH) -T firmware -C none \ | |
767 | -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \ | |
768 | -e $(CONFIG_SYS_UBOOT_START) \ | |
769 | -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \ | |
770 | sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \ | |
771 | -d $< $@ | |
772 | ||
773 | u-boot.imx: u-boot.bin | |
774 | $(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx | |
775 | ||
776 | u-boot.kwb: u-boot.bin | |
777 | tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \ | |
778 | -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@ | |
779 | ||
780 | u-boot.pbl: u-boot.bin | |
781 | tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \ | |
782 | -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \ | |
783 | -d $< $@ | |
784 | ||
785 | u-boot.sha1: u-boot.bin | |
786 | tools/ubsha1 u-boot.bin | |
787 | ||
788 | u-boot.dis: u-boot | |
789 | $(OBJDUMP) -d $< > $@ | |
790 | ||
791 | # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate, | |
792 | # $(4) is pad-to | |
793 | SPL_PAD_APPEND = \ | |
794 | $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \ | |
795 | $(1) $(3); \ | |
796 | cat $(3) $(2) > $@; \ | |
797 | rm $(3) | |
798 | ||
799 | ifdef CONFIG_TPL | |
800 | SPL_PAYLOAD := tpl/u-boot-with-tpl.bin | |
801 | else | |
802 | SPL_PAYLOAD := u-boot.bin | |
803 | endif | |
804 | ||
805 | u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) | |
806 | $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO)) | |
807 | ||
808 | tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin | |
809 | $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO)) | |
810 | ||
811 | u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin | |
812 | $(MAKE) $(build)=arch/arm/imx-common \ | |
813 | $(OBJTREE)/u-boot-with-spl.imx | |
814 | ||
815 | u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin | |
816 | $(MAKE) $(build)=arch/arm/imx-common \ | |
817 | $(OBJTREE)/u-boot-with-nand-spl.imx | |
818 | ||
819 | u-boot.ubl: u-boot-with-spl.bin | |
820 | tools/mkimage -n $(UBL_CONFIG) -T ublimage \ | |
821 | -e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl | |
822 | ||
823 | u-boot.ais: spl/u-boot-spl.bin u-boot.img | |
824 | tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ | |
825 | -T aisimage \ | |
826 | -e $(CONFIG_SPL_TEXT_BASE) \ | |
827 | -d spl/u-boot-spl.bin \ | |
828 | spl/u-boot-spl.ais | |
829 | $(OBJCOPY) ${OBJCFLAGS} -I binary \ | |
830 | --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \ | |
831 | spl/u-boot-spl.ais spl/u-boot-spl-pad.ais | |
832 | cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais | |
833 | ||
834 | ||
835 | u-boot.sb: u-boot.bin spl/u-boot-spl.bin | |
836 | $(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb | |
837 | ||
838 | # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. | |
839 | # Both images are created using mkimage (crc etc), so that the ROM | |
840 | # bootloader can check its integrity. Padding needs to be done to the | |
841 | # SPL image (with mkimage header) and not the binary. Otherwise the resulting image | |
842 | # which is loaded/copied by the ROM bootloader to SRAM doesn't fit. | |
843 | # The resulting image containing both U-Boot images is called u-boot.spr | |
844 | u-boot.spr: u-boot.img spl/u-boot-spl.bin | |
845 | tools/mkimage -A $(ARCH) -T firmware -C none \ | |
846 | -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \ | |
847 | -d spl/u-boot-spl.bin $@ | |
848 | $(OBJCOPY) -I binary -O binary \ | |
849 | --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@ | |
850 | cat u-boot.img >> $@ | |
851 | ||
852 | ifneq ($(CONFIG_TEGRA),) | |
853 | u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin | |
854 | $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin | |
855 | cat spl/u-boot-spl-pad.bin u-boot.bin > $@ | |
856 | rm spl/u-boot-spl-pad.bin | |
857 | ||
858 | ifeq ($(CONFIG_OF_SEPARATE),y) | |
859 | u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin u-boot.dtb | |
860 | cat u-boot-nodtb-tegra.bin u-boot.dtb > $@ | |
861 | endif | |
862 | endif | |
863 | ||
864 | u-boot-img.bin: spl/u-boot-spl.bin u-boot.img | |
865 | cat spl/u-boot-spl.bin u-boot.img > $@ | |
866 | ||
867 | # PPC4xx needs the SPL at the end of the image, since the reset vector | |
868 | # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target | |
869 | # and need to introduce a new build target with the full blown U-Boot | |
870 | # at the start padded up to the start of the SPL image. And then concat | |
871 | # the SPL image to the end. | |
872 | u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img | |
873 | $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \ | |
874 | --gap-fill=0xff u-boot.img $@ | |
875 | cat spl/u-boot-spl.bin >> $@ | |
876 | ||
877 | # Create a new ELF from a raw binary file. This is useful for arm64 | |
878 | # where static relocation needs to be performed on the raw binary, | |
879 | # but certain simulators only accept an ELF file (but don't do the | |
880 | # relocation). | |
881 | # FIXME refactor dts/Makefile to share target/arch detection | |
882 | u-boot.elf: u-boot.bin | |
883 | @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ | |
884 | $< u-boot-elf.o | |
885 | @$(LD) u-boot-elf.o -o $@ \ | |
886 | --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ | |
887 | -Ttext=$(CONFIG_SYS_TEXT_BASE) | |
888 | ||
889 | ifeq ($(CONFIG_SANDBOX),y) | |
890 | GEN_UBOOT = \ | |
891 | $(CC) $(SYMS) -T u-boot.lds \ | |
892 | -Wl,--start-group $(u-boot-main) -Wl,--end-group \ | |
893 | $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot | |
894 | else | |
895 | GEN_UBOOT = \ | |
896 | $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ | |
897 | $(u-boot-init) \ | |
898 | --start-group $(u-boot-main) --end-group $(PLATFORM_LIBS) \ | |
899 | -Map u-boot.map -o u-boot | |
900 | endif | |
901 | ||
902 | u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds | |
903 | $(GEN_UBOOT) | |
904 | ifeq ($(CONFIG_KALLSYMS),y) | |
905 | smap=`$(call SYSTEM_MAP,u-boot) | \ | |
906 | awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ | |
907 | $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ | |
908 | -c $(srctree)/common/system_map.c -o common/system_map.o | |
909 | $(GEN_UBOOT) common/system_map.o | |
910 | endif | |
911 | ||
912 | # The actual objects are generated when descending, | |
913 | # make sure no implicit rule kicks in | |
914 | $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; | |
915 | ||
916 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | |
917 | # Preset locale variables to speed up the build process. Limit locale | |
918 | # tweaks to this spot to avoid wrong language settings when running | |
919 | # make menuconfig etc. | |
920 | # Error messages still appears in the original language | |
921 | ||
922 | PHONY += $(u-boot-dirs) | |
923 | $(u-boot-dirs): depend scripts_basic | |
924 | $(Q)$(MAKE) $(build)=$@ | |
925 | ||
926 | tools: $(TIMESTAMP_FILE) $(VERSION_FILE) | |
927 | # The "tools" are needed early | |
928 | $(filter-out tools, $(u-boot-dirs)): tools | |
929 | # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC | |
930 | # is "yes"), so compile examples after U-Boot is compiled. | |
931 | examples: $(filter-out examples, $(u-boot-dirs)) | |
932 | ||
933 | ||
934 | # | |
935 | # Auto-generate the autoconf.mk file (which is included by all makefiles) | |
936 | # | |
937 | # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep. | |
938 | # the dep file is only include in this top level makefile to determine when | |
939 | # to regenerate the autoconf.mk file. | |
940 | ||
941 | quiet_cmd_autoconf_dep = GEN $@ | |
942 | cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \ | |
943 | -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@ | |
944 | ||
945 | include/autoconf.mk.dep: include/config.h include/common.h | |
946 | $(call cmd,autoconf_dep) | |
947 | ||
948 | quiet_cmd_autoconf = GEN $@ | |
949 | cmd_autoconf = \ | |
950 | $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ | |
951 | sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ | |
952 | rm $@.tmp | |
953 | ||
954 | include/autoconf.mk: include/config.h | |
955 | $(call cmd,autoconf) | |
956 | ||
957 | u-boot.lds: $(LDSCRIPT) depend | |
958 | $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@ | |
959 | ||
960 | nand_spl: $(TIMESTAMP_FILE) $(VERSION_FILE) depend scripts_basic | |
961 | $(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all | |
962 | ||
963 | u-boot-nand.bin: nand_spl u-boot.bin | |
964 | cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin | |
965 | ||
966 | spl/u-boot-spl.bin: tools depend scripts_basic | |
967 | $(MAKE) obj=spl -f $(srctree)/spl/Makefile all | |
968 | ||
969 | tpl/u-boot-tpl.bin: tools depend scripts_basic | |
970 | $(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y | |
971 | ||
972 | # Explicitly make _depend in subdirs containing multiple targets to prevent | |
973 | # parallel sub-makes creating .depend files simultaneously. | |
974 | depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) \ | |
975 | include/generated/generic-asm-offsets.h \ | |
976 | include/generated/asm-offsets.h | |
977 | ||
978 | TAG_SUBDIRS := $(u-boot-dirs) include | |
979 | ||
980 | FIND := find | |
981 | FINDFLAGS := -L | |
982 | ||
983 | PHONY += checkstack | |
984 | ||
985 | checkstack: | |
986 | $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ | |
987 | $(PERL) $(src)/scripts/checkstack.pl $(ARCH) | |
988 | ||
989 | tags ctags: | |
990 | ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ | |
991 | -name '*.[chS]' -print` | |
992 | ||
993 | etags: | |
994 | etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ | |
995 | -name '*.[chS]' -print` | |
996 | cscope: | |
997 | $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ | |
998 | cscope.files | |
999 | cscope -b -q -k | |
1000 | ||
1001 | SYSTEM_MAP = \ | |
1002 | $(NM) $1 | \ | |
1003 | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ | |
1004 | LC_ALL=C sort | |
1005 | System.map: u-boot | |
1006 | @$(call SYSTEM_MAP,$<) > $@ | |
1007 | ||
1008 | checkthumb: | |
1009 | @if test $(call cc-version) -lt 0404; then \ | |
1010 | echo -n '*** Your GCC does not produce working '; \ | |
1011 | echo 'binaries in THUMB mode.'; \ | |
1012 | echo '*** Your board is configured for THUMB mode.'; \ | |
1013 | false; \ | |
1014 | fi | |
1015 | ||
1016 | # GCC 3.x is reported to have problems generating the type of relocation | |
1017 | # that U-Boot wants. | |
1018 | # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html | |
1019 | checkgcc4: | |
1020 | @if test $(call cc-version) -lt 0400; then \ | |
1021 | echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \ | |
1022 | false; \ | |
1023 | fi | |
1024 | ||
1025 | checkdtc: | |
1026 | @if test $(call dtc-version) -lt 0104; then \ | |
1027 | echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ | |
1028 | false; \ | |
1029 | fi | |
1030 | ||
1031 | quiet_cmd_offsets = GEN $@ | |
1032 | cmd_offsets = $(srctree)/tools/scripts/make-asm-offsets $< $@ | |
1033 | ||
1034 | include/generated/generic-asm-offsets.h: lib/asm-offsets.s | |
1035 | $(call cmd,offsets) | |
1036 | ||
1037 | quiet_cmd_asm-offsets.s = CC $@ | |
1038 | cmd_asm-offsets.s = mkdir -p lib; \ | |
1039 | $(CC) -DDO_DEPS_ONLY \ | |
1040 | $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \ | |
1041 | -o $@ $< -c -S | |
1042 | ||
1043 | lib/asm-offsets.s: $(srctree)/lib/asm-offsets.c include/config.h | |
1044 | $(call cmd,asm-offsets.s) | |
1045 | ||
1046 | include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s | |
1047 | $(call cmd,offsets) | |
1048 | ||
1049 | quiet_cmd_soc_asm-offsets.s = CC $@ | |
1050 | cmd_soc_asm-offsets.s = mkdir -p $(CPUDIR)/$(SOC); \ | |
1051 | if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \ | |
1052 | $(CC) -DDO_DEPS_ONLY \ | |
1053 | $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \ | |
1054 | -o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \ | |
1055 | else \ | |
1056 | touch $@; \ | |
1057 | fi | |
1058 | ||
1059 | $(CPUDIR)/$(SOC)/asm-offsets.s: include/config.h | |
1060 | $(call cmd,soc_asm-offsets.s) | |
1061 | ||
1062 | ######################################################################### | |
1063 | ||
1064 | # ARM relocations should all be R_ARM_RELATIVE (32-bit) or | |
1065 | # R_AARCH64_RELATIVE (64-bit). | |
1066 | checkarmreloc: u-boot | |
1067 | @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ | |
1068 | grep R_A | sort -u`"; \ | |
1069 | if test "$$RELOC" != "R_ARM_RELATIVE" -a \ | |
1070 | "$$RELOC" != "R_AARCH64_RELATIVE"; then \ | |
1071 | echo "$< contains unexpected relocations: $$RELOC"; \ | |
1072 | false; \ | |
1073 | fi | |
1074 | ||
1075 | $(VERSION_FILE): | |
1076 | @mkdir -p $(dir $(VERSION_FILE)) | |
1077 | @( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \ | |
1078 | printf '#define PLAIN_VERSION "%s%s"\n' \ | |
1079 | "$(U_BOOT_VERSION)" "$${localvers}" ; \ | |
1080 | printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \ | |
1081 | "$(U_BOOT_VERSION)" "$${localvers}" ; \ | |
1082 | ) > $@.tmp | |
1083 | @( printf '#define CC_VERSION_STRING "%s"\n' \ | |
1084 | '$(shell $(CC) --version | head -n 1)' )>> $@.tmp | |
1085 | @( printf '#define LD_VERSION_STRING "%s"\n' \ | |
1086 | '$(shell $(LD) -v | head -n 1)' )>> $@.tmp | |
1087 | @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@ | |
1088 | ||
1089 | $(TIMESTAMP_FILE): | |
1090 | @mkdir -p $(dir $(TIMESTAMP_FILE)) | |
1091 | @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp | |
1092 | @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp | |
1093 | @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@ | |
1094 | ||
1095 | env: depend scripts_basic | |
1096 | $(Q)$(MAKE) $(build)=tools/$@ | |
1097 | ||
1098 | xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc | |
1099 | $(Q)$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@ | |
1100 | ||
1101 | tools-all: HOST_TOOLS_ALL=y | |
1102 | tools-all: env tools ; | |
1103 | ||
1104 | .PHONY : CHANGELOG | |
1105 | CHANGELOG: | |
1106 | git log --no-merges U-Boot-1_1_5.. | \ | |
1107 | unexpand -a | sed -e 's/\s\s*$$//' > $@ | |
1108 | ||
1109 | include/license.h: tools/bin2header COPYING | |
1110 | cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h | |
1111 | ######################################################################### | |
1112 | ||
1113 | ### | |
1114 | # Cleaning is done on three levels. | |
1115 | # make clean Delete most generated files | |
1116 | # Leave enough to build external modules | |
1117 | # make mrproper Delete the current configuration, and all generated files | |
1118 | # make distclean Remove editor backup files, patch leftover files and the like | |
1119 | ||
1120 | # Directories & files removed with 'make clean' | |
1121 | CLEAN_DIRS += $(MODVERDIR) | |
1122 | CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \ | |
1123 | board/*/config.tmp board/*/*/config.tmp dts/*.tmp \ | |
1124 | include/autoconf.mk* include/spl-autoconf.mk \ | |
1125 | include/tpl-autoconf.mk | |
1126 | ||
1127 | # Directories & files removed with 'make clobber' | |
1128 | CLOBBER_DIRS += $(patsubst %,spl/%, $(filter-out Makefile, \ | |
1129 | $(shell ls -1 spl 2>/dev/null))) \ | |
1130 | tpl | |
1131 | CLOBBER_FILES += u-boot* MLO MLO* SPL System.map nand_spl/u-boot* | |
1132 | ||
1133 | # Directories & files removed with 'make mrproper' | |
1134 | MRPROPER_DIRS += include/config include/generated | |
1135 | MRPROPER_FILES += .config .config.old \ | |
1136 | tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ | |
1137 | include/config.h include/config.mk | |
1138 | ||
1139 | # clean - Delete most, but leave enough to build external modules | |
1140 | # | |
1141 | clean: rm-dirs := $(CLEAN_DIRS) | |
1142 | clean: rm-files := $(CLEAN_FILES) | |
1143 | ||
1144 | clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $f/Makefile),$f)) | |
1145 | ||
1146 | clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) | |
1147 | ||
1148 | PHONY += $(clean-dirs) clean archclean | |
1149 | $(clean-dirs): | |
1150 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | |
1151 | ||
1152 | # TODO: Do not use *.cfgtmp | |
1153 | clean: $(clean-dirs) | |
1154 | $(call cmd,rmdirs) | |
1155 | $(call cmd,rmfiles) | |
1156 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | |
1157 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | |
1158 | -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ | |
1159 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | |
1160 | -o -name '*.symtypes' -o -name 'modules.order' \ | |
1161 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | |
1162 | -o -name '*.gcno' \) -type f -print | xargs rm -f | |
1163 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | |
1164 | -path './nand_spl/*' -type l -print | xargs rm -f | |
1165 | ||
1166 | # clobber | |
1167 | # | |
1168 | clobber: rm-dirs := $(CLOBBER_DIRS) | |
1169 | clobber: rm-files := $(CLOBBER_FILES) | |
1170 | ||
1171 | PHONY += clobber | |
1172 | ||
1173 | clobber: clean | |
1174 | $(call cmd,rmdirs) | |
1175 | $(call cmd,rmfiles) | |
1176 | ||
1177 | # mrproper - Delete all generated files, including .config | |
1178 | # | |
1179 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | |
1180 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | |
1181 | mrproper-dirs := $(addprefix _mrproper_,scripts) | |
1182 | ||
1183 | PHONY += $(mrproper-dirs) mrproper archmrproper | |
1184 | $(mrproper-dirs): | |
1185 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | |
1186 | ||
1187 | mrproper: clobber $(mrproper-dirs) | |
1188 | $(call cmd,rmdirs) | |
1189 | $(call cmd,rmfiles) | |
1190 | @rm -f arch/*/include/asm/arch arch/*/include/asm/proc | |
1191 | ||
1192 | # distclean | |
1193 | # | |
1194 | PHONY += distclean | |
1195 | ||
1196 | distclean: mrproper | |
1197 | @find $(srctree) $(RCS_FIND_IGNORE) \ | |
1198 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | |
1199 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | |
1200 | -o -name '.*.rej' \ | |
1201 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | |
1202 | -type f -print | xargs rm -f | |
1203 | ||
1204 | backup: | |
1205 | F=`basename $(TOPDIR)` ; cd .. ; \ | |
1206 | gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F | |
1207 | ||
1208 | ######################################################################### | |
1209 | ||
1210 | endif #ifeq ($(config-targets),1) | |
1211 | endif #ifeq ($(mixed-targets),1) | |
1212 | ||
1213 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | |
1214 | cmd_rmdirs = rm -rf $(rm-dirs) | |
1215 | ||
1216 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | |
1217 | cmd_rmfiles = rm -f $(rm-files) | |
1218 | ||
1219 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | |
1220 | # Usage: | |
1221 | # $(Q)$(MAKE) $(clean)=dir | |
1222 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | |
1223 | ||
1224 | endif # skip-makefile | |
1225 | ||
1226 | PHONY += FORCE | |
1227 | FORCE: | |
1228 | ||
1229 | # Declare the contents of the .PHONY variable as phony. We keep that | |
1230 | # information in a variable so we can use it in if_changed and friends. | |
1231 | .PHONY: $(PHONY) |