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1#
2# SPDX-License-Identifier: GPL-2.0+
3#
4
5VERSION = 2017
6PATCHLEVEL = 05
7SUBLEVEL =
8EXTRAVERSION = -rc1
9NAME =
10
11# *DOCUMENTATION*
12# To see a list of typical targets execute "make help"
13# More info can be located in ./README
14# Comments in this file are targeted only to the developer, do not
15# expect to learn how to build the kernel reading this file.
16
17# o Do not use make's built-in rules and variables
18# (this increases performance and avoids hard-to-debug behaviour);
19# o Look for make include files relative to root of kernel src
20MAKEFLAGS += -rR --include-dir=$(CURDIR)
21
22# Avoid funny character set dependencies
23unexport LC_ALL
24LC_COLLATE=C
25LC_NUMERIC=C
26export LC_COLLATE LC_NUMERIC
27
28# Avoid interference with shell env settings
29unexport GREP_OPTIONS
30
31# We are using a recursive build, so we need to do a little thinking
32# to get the ordering right.
33#
34# Most importantly: sub-Makefiles should only ever modify files in
35# their own directory. If in some directory we have a dependency on
36# a file in another dir (which doesn't happen often, but it's often
37# unavoidable when linking the built-in.o targets which finally
38# turn into vmlinux), we will call a sub make in that other dir, and
39# after that we are sure that everything which is in that other dir
40# is now up to date.
41#
42# The only cases where we need to modify files which have global
43# effects are thus separated out and done before the recursive
44# descending is started. They are now explicitly listed as the
45# prepare rule.
46
47# Beautify output
48# ---------------------------------------------------------------------------
49#
50# Normally, we echo the whole command before executing it. By making
51# that echo $($(quiet)$(cmd)), we now have the possibility to set
52# $(quiet) to choose other forms of output instead, e.g.
53#
54# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
56#
57# If $(quiet) is empty, the whole command will be printed.
58# If it is set to "quiet_", only the short version will be printed.
59# If it is set to "silent_", nothing will be printed at all, since
60# the variable $(silent_cmd_cc_o_c) doesn't exist.
61#
62# A simple variant is to prefix commands with $(Q) - that's useful
63# for commands that shall be hidden in non-verbose mode.
64#
65# $(Q)ln $@ :<
66#
67# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68# If KBUILD_VERBOSE equals 1 then the above command is displayed.
69#
70# To put more focus on warnings, be less verbose as default
71# Use 'make V=1' to see the full commands
72
73ifeq ("$(origin V)", "command line")
74 KBUILD_VERBOSE = $(V)
75endif
76ifndef KBUILD_VERBOSE
77 KBUILD_VERBOSE = 0
78endif
79
80ifeq ($(KBUILD_VERBOSE),1)
81 quiet =
82 Q =
83else
84 quiet=quiet_
85 Q = @
86endif
87
88# If the user is running make -s (silent mode), suppress echoing of
89# commands
90
91ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
93 quiet=silent_
94endif
95else # make-3.8x
96ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
97 quiet=silent_
98endif
99endif
100
101export quiet Q KBUILD_VERBOSE
102
103# kbuild supports saving output files in a separate directory.
104# To locate output files in a separate directory two syntaxes are supported.
105# In both cases the working directory must be the root of the kernel src.
106# 1) O=
107# Use "make O=dir/to/store/output/files/"
108#
109# 2) Set KBUILD_OUTPUT
110# Set the environment variable KBUILD_OUTPUT to point to the directory
111# where the output files shall be placed.
112# export KBUILD_OUTPUT=dir/to/store/output/files/
113# make
114#
115# The O= assignment takes precedence over the KBUILD_OUTPUT environment
116# variable.
117
118# KBUILD_SRC is set on invocation of make in OBJ directory
119# KBUILD_SRC is not intended to be used by the regular user (for now)
120ifeq ($(KBUILD_SRC),)
121
122# OK, Make called in directory where kernel src resides
123# Do we want to locate output files in a separate directory?
124ifeq ("$(origin O)", "command line")
125 KBUILD_OUTPUT := $(O)
126endif
127
128# That's our default target when none is given on the command line
129PHONY := _all
130_all:
131
132# Cancel implicit rules on top Makefile
133$(CURDIR)/Makefile Makefile: ;
134
135ifneq ($(KBUILD_OUTPUT),)
136# Invoke a second make in the output directory, passing relevant variables
137# check that the output directory actually exists
138saved-output := $(KBUILD_OUTPUT)
139KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
140 && /bin/pwd)
141$(if $(KBUILD_OUTPUT),, \
142 $(error failed to create output directory "$(saved-output)"))
143
144PHONY += $(MAKECMDGOALS) sub-make
145
146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
147 @:
148
149sub-make: FORCE
150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
152
153# Leave processing to above invocation of make
154skip-makefile := 1
155endif # ifneq ($(KBUILD_OUTPUT),)
156endif # ifeq ($(KBUILD_SRC),)
157
158# We process the rest of the Makefile if this is the final invocation of make
159ifeq ($(skip-makefile),)
160
161# Do not print "Entering directory ...",
162# but we want to display it when entering to the output directory
163# so that IDEs/editors are able to understand relative filenames.
164MAKEFLAGS += --no-print-directory
165
166# Call a source code checker (by default, "sparse") as part of the
167# C compilation.
168#
169# Use 'make C=1' to enable checking of only re-compiled files.
170# Use 'make C=2' to enable checking of *all* source files, regardless
171# of whether they are re-compiled or not.
172#
173# See the file "Documentation/sparse.txt" for more details, including
174# where to get the "sparse" utility.
175
176ifeq ("$(origin C)", "command line")
177 KBUILD_CHECKSRC = $(C)
178endif
179ifndef KBUILD_CHECKSRC
180 KBUILD_CHECKSRC = 0
181endif
182
183# Use make M=dir to specify directory of external module to build
184# Old syntax make ... SUBDIRS=$PWD is still supported
185# Setting the environment variable KBUILD_EXTMOD take precedence
186ifdef SUBDIRS
187 KBUILD_EXTMOD ?= $(SUBDIRS)
188endif
189
190ifeq ("$(origin M)", "command line")
191 KBUILD_EXTMOD := $(M)
192endif
193
194# If building an external module we do not care about the all: rule
195# but instead _all depend on modules
196PHONY += all
197ifeq ($(KBUILD_EXTMOD),)
198_all: all
199else
200_all: modules
201endif
202
203ifeq ($(KBUILD_SRC),)
204 # building in the source tree
205 srctree := .
206else
207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208 # building in a subdirectory of the source tree
209 srctree := ..
210 else
211 srctree := $(KBUILD_SRC)
212 endif
213endif
214objtree := .
215src := $(srctree)
216obj := $(objtree)
217
218VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219
220export srctree objtree VPATH
221
222# Make sure CDPATH settings don't interfere
223unexport CDPATH
224
225#########################################################################
226
227HOSTARCH := $(shell uname -m | \
228 sed -e s/i.86/x86/ \
229 -e s/sun4u/sparc64/ \
230 -e s/arm.*/arm/ \
231 -e s/sa110/arm/ \
232 -e s/ppc64/powerpc/ \
233 -e s/ppc/powerpc/ \
234 -e s/macppc/powerpc/\
235 -e s/sh.*/sh/)
236
237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238 sed -e 's/\(cygwin\).*/cygwin/')
239
240export HOSTARCH HOSTOS
241
242#########################################################################
243
244# set default to nothing for native builds
245ifeq ($(HOSTARCH),$(ARCH))
246CROSS_COMPILE ?=
247endif
248
249KCONFIG_CONFIG ?= .config
250export KCONFIG_CONFIG
251
252# SHELL used by kbuild
253CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254 else if [ -x /bin/bash ]; then echo /bin/bash; \
255 else echo sh; fi ; fi)
256
257HOSTCC = cc
258HOSTCXX = c++
259HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260 $(if $(CONFIG_TOOLS_DEBUG),-g)
261HOSTCXXFLAGS = -O2
262
263ifeq ($(HOSTOS),cygwin)
264HOSTCFLAGS += -ansi
265endif
266
267# Mac OS X / Darwin's C preprocessor is Apple specific. It
268# generates numerous errors and warnings. We want to bypass it
269# and use GNU C's cpp. To do this we pass the -traditional-cpp
270# option to the compiler. Note that the -traditional-cpp flag
271# DOES NOT have the same semantics as GNU C's flag, all it does
272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
273#
274# Apple's linker is similar, thanks to the new 2 stage linking
275# multiple symbol definitions are treated as errors, hence the
276# -multiply_defined suppress option to turn off this error.
277#
278ifeq ($(HOSTOS),darwin)
279# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
281DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
282
283os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
285
286# Snow Leopards build environment has no longer restrictions as described above
287HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
288HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
290
291# since Lion (10.7) ASLR is on by default, but we use linker generated lists
292# in some host tools which is a problem then ... so disable ASLR for these
293# tools
294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
295endif
296
297# Decide whether to build built-in, modular, or both.
298# Normally, just do built-in.
299
300KBUILD_MODULES :=
301KBUILD_BUILTIN := 1
302
303# If we have only "make modules", don't compile built-in objects.
304# When we're building modules with modversions, we need to consider
305# the built-in objects during the descend as well, in order to
306# make sure the checksums are up to date before we record them.
307
308ifeq ($(MAKECMDGOALS),modules)
309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
310endif
311
312# If we have "make <whatever> modules", compile modules
313# in addition to whatever we do anyway.
314# Just "make" or "make all" shall build modules as well
315
316# U-Boot does not need modules
317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318# KBUILD_MODULES := 1
319#endif
320
321#ifeq ($(MAKECMDGOALS),)
322# KBUILD_MODULES := 1
323#endif
324
325export KBUILD_MODULES KBUILD_BUILTIN
326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
327
328# We need some generic definitions (do not try to remake the file).
329scripts/Kbuild.include: ;
330include scripts/Kbuild.include
331
332# Make variables (CC, etc...)
333
334AS = $(CROSS_COMPILE)as
335# Always use GNU ld
336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337LD = $(CROSS_COMPILE)ld.bfd
338else
339LD = $(CROSS_COMPILE)ld
340endif
341CC = $(CROSS_COMPILE)gcc
342CPP = $(CC) -E
343AR = $(CROSS_COMPILE)ar
344NM = $(CROSS_COMPILE)nm
345LDR = $(CROSS_COMPILE)ldr
346STRIP = $(CROSS_COMPILE)strip
347OBJCOPY = $(CROSS_COMPILE)objcopy
348OBJDUMP = $(CROSS_COMPILE)objdump
349AWK = awk
350PERL = perl
351PYTHON = python
352DTC = dtc
353CHECK = sparse
354
355CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
357
358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
359
360KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
361 -Wno-format-security \
362 -fno-builtin -ffreestanding
363KBUILD_AFLAGS := -D__ASSEMBLY__
364
365# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
366UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
367UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
368
369export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
370export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
371export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
372export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
373export MAKE AWK PERL PYTHON
374export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
375
376export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
377export KBUILD_CFLAGS KBUILD_AFLAGS
378
379# When compiling out-of-tree modules, put MODVERDIR in the module
380# tree rather than in the kernel tree. The kernel tree might
381# even be read-only.
382export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
383
384# Files to ignore in find ... statements
385
386export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
387 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
388 -prune -o
389export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
390 --exclude CVS --exclude .pc --exclude .hg --exclude .git
391
392# ===========================================================================
393# Rules shared between *config targets and build targets
394
395# Basic helpers built in scripts/
396PHONY += scripts_basic
397scripts_basic:
398 $(Q)$(MAKE) $(build)=scripts/basic
399 $(Q)rm -f .tmp_quiet_recordmcount
400
401# To avoid any implicit rule to kick in, define an empty command.
402scripts/basic/%: scripts_basic ;
403
404PHONY += outputmakefile
405# outputmakefile generates a Makefile in the output directory, if using a
406# separate output directory. This allows convenient use of make in the
407# output directory.
408outputmakefile:
409ifneq ($(KBUILD_SRC),)
410 $(Q)ln -fsn $(srctree) source
411 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
412 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
413endif
414
415# To make sure we do not include .config for any of the *config targets
416# catch them early, and hand them over to scripts/kconfig/Makefile
417# It is allowed to specify more targets when calling make, including
418# mixing *config targets and build targets.
419# For example 'make oldconfig all'.
420# Detect when mixed targets is specified, and make a second invocation
421# of make so .config is not included in this case either (for *config).
422
423version_h := include/generated/version_autogenerated.h
424timestamp_h := include/generated/timestamp_autogenerated.h
425
426no-dot-config-targets := clean clobber mrproper distclean \
427 help %docs check% coccicheck \
428 ubootversion backup tests
429
430config-targets := 0
431mixed-targets := 0
432dot-config := 1
433
434ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
435 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
436 dot-config := 0
437 endif
438endif
439
440ifeq ($(KBUILD_EXTMOD),)
441 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
442 config-targets := 1
443 ifneq ($(words $(MAKECMDGOALS)),1)
444 mixed-targets := 1
445 endif
446 endif
447endif
448
449ifeq ($(mixed-targets),1)
450# ===========================================================================
451# We're called with mixed targets (*config and build targets).
452# Handle them one by one.
453
454PHONY += $(MAKECMDGOALS) __build_one_by_one
455
456$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
457 @:
458
459__build_one_by_one:
460 $(Q)set -e; \
461 for i in $(MAKECMDGOALS); do \
462 $(MAKE) -f $(srctree)/Makefile $$i; \
463 done
464
465else
466ifeq ($(config-targets),1)
467# ===========================================================================
468# *config targets only - make sure prerequisites are updated, and descend
469# in scripts/kconfig to make the *config target
470
471KBUILD_DEFCONFIG := sandbox_defconfig
472export KBUILD_DEFCONFIG KBUILD_KCONFIG
473
474config: scripts_basic outputmakefile FORCE
475 $(Q)$(MAKE) $(build)=scripts/kconfig $@
476
477%config: scripts_basic outputmakefile FORCE
478 $(Q)$(MAKE) $(build)=scripts/kconfig $@
479
480else
481# ===========================================================================
482# Build targets only - this includes vmlinux, arch specific targets, clean
483# targets and others. In general all targets except *config targets.
484
485# Additional helpers built in scripts/
486# Carefully list dependencies so we do not try to build scripts twice
487# in parallel
488PHONY += scripts
489scripts: scripts_basic include/config/auto.conf
490 $(Q)$(MAKE) $(build)=$(@)
491
492ifeq ($(dot-config),1)
493# Read in config
494-include include/config/auto.conf
495
496# Read in dependencies to all Kconfig* files, make sure to run
497# oldconfig if changes are detected.
498-include include/config/auto.conf.cmd
499
500# To avoid any implicit rule to kick in, define an empty command
501$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
502
503# If .config is newer than include/config/auto.conf, someone tinkered
504# with it and forgot to run make oldconfig.
505# if auto.conf.cmd is missing then we are probably in a cleaned tree so
506# we execute the config step to be sure to catch updated Kconfig files
507include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
508 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
509 @# If the following part fails, include/config/auto.conf should be
510 @# deleted so "make silentoldconfig" will be re-run on the next build.
511 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
512 { rm -f include/config/auto.conf; false; }
513 @# include/config.h has been updated after "make silentoldconfig".
514 @# We need to touch include/config/auto.conf so it gets newer
515 @# than include/config.h.
516 @# Otherwise, 'make silentoldconfig' would be invoked twice.
517 $(Q)touch include/config/auto.conf
518
519-include include/autoconf.mk
520-include include/autoconf.mk.dep
521
522# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
523# is up-to-date. When we switch to a different board configuration, old CONFIG
524# macros are still remaining in include/config/auto.conf. Without the following
525# gimmick, wrong config.mk would be included leading nasty warnings/errors.
526ifneq ($(wildcard $(KCONFIG_CONFIG)),)
527ifneq ($(wildcard include/config/auto.conf),)
528autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
529 include/config/auto.conf)
530ifeq ($(autoconf_is_old),)
531include config.mk
532include arch/$(ARCH)/Makefile
533endif
534endif
535endif
536
537# These are set by the arch-specific config.mk. Make sure they are exported
538# so they can be used when building an EFI application.
539export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
540export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
541export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
542export CFLAGS_EFI # Compiler flags to add when building EFI app
543export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
544export EFI_TARGET # binutils target if EFI is natively supported
545
546# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
547# that (or fail if absent). Otherwise, search for a linker script in a
548# standard location.
549
550ifndef LDSCRIPT
551 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
552 ifdef CONFIG_SYS_LDSCRIPT
553 # need to strip off double quotes
554 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
555 endif
556endif
557
558# If there is no specified link script, we look in a number of places for it
559ifndef LDSCRIPT
560 ifeq ($(wildcard $(LDSCRIPT)),)
561 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
562 endif
563 ifeq ($(wildcard $(LDSCRIPT)),)
564 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
565 endif
566 ifeq ($(wildcard $(LDSCRIPT)),)
567 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
568 endif
569endif
570
571else
572# Dummy target needed, because used as prerequisite
573include/config/auto.conf: ;
574endif # $(dot-config)
575
576#
577# Xtensa linker script cannot be preprocessed with -ansi because of
578# preprocessor operations on strings that don't make C identifiers.
579#
580ifeq ($(CONFIG_XTENSA),)
581LDPPFLAGS += -ansi
582endif
583
584ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
585KBUILD_CFLAGS += -Os
586else
587KBUILD_CFLAGS += -O2
588endif
589
590KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
591KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
592
593KBUILD_CFLAGS += -g
594# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
595# option to the assembler.
596KBUILD_AFLAGS += -g
597
598# Report stack usage if supported
599ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
600 KBUILD_CFLAGS += -fstack-usage
601endif
602
603KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
604
605# turn jbsr into jsr for m68k
606ifeq ($(ARCH),m68k)
607ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
608KBUILD_AFLAGS += -Wa,-gstabs,-S
609endif
610endif
611
612# Prohibit date/time macros, which would make the build non-deterministic
613KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
614
615include scripts/Makefile.extrawarn
616
617# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
618KBUILD_CPPFLAGS += $(KCPPFLAGS)
619KBUILD_AFLAGS += $(KAFLAGS)
620KBUILD_CFLAGS += $(KCFLAGS)
621
622# Use UBOOTINCLUDE when you must reference the include/ directory.
623# Needed to be compatible with the O= option
624UBOOTINCLUDE := \
625 -Iinclude \
626 $(if $(KBUILD_SRC), -I$(srctree)/include) \
627 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
628 $(if $(CONFIG_HAS_THUMB2),, \
629 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
630 -I$(srctree)/arch/$(ARCH)/include \
631 -include $(srctree)/include/linux/kconfig.h
632
633NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
634CHECKFLAGS += $(NOSTDINC_FLAGS)
635
636# FIX ME
637cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
638 $(NOSTDINC_FLAGS)
639c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
640
641#########################################################################
642# U-Boot objects....order is important (i.e. start must be first)
643
644HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
645
646libs-y += lib/
647libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
648libs-$(CONFIG_OF_EMBED) += dts/
649libs-y += fs/
650libs-y += net/
651libs-y += disk/
652libs-y += drivers/
653libs-y += drivers/dma/
654libs-y += drivers/gpio/
655libs-y += drivers/i2c/
656libs-y += drivers/mmc/
657libs-y += drivers/mtd/
658libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
659libs-y += drivers/mtd/onenand/
660libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
661libs-y += drivers/mtd/spi/
662libs-y += drivers/net/
663libs-y += drivers/net/phy/
664libs-y += drivers/pci/
665libs-y += drivers/power/ \
666 drivers/power/domain/ \
667 drivers/power/fuel_gauge/ \
668 drivers/power/mfd/ \
669 drivers/power/pmic/ \
670 drivers/power/battery/ \
671 drivers/power/regulator/
672libs-y += drivers/spi/
673libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
674libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
675libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
676libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
677libs-y += drivers/serial/
678libs-y += drivers/usb/dwc3/
679libs-y += drivers/usb/common/
680libs-y += drivers/usb/emul/
681libs-y += drivers/usb/eth/
682libs-y += drivers/usb/gadget/
683libs-y += drivers/usb/gadget/udc/
684libs-y += drivers/usb/host/
685libs-y += drivers/usb/musb/
686libs-y += drivers/usb/musb-new/
687libs-y += drivers/usb/phy/
688libs-y += drivers/usb/ulpi/
689libs-y += cmd/
690libs-y += common/
691libs-$(CONFIG_API) += api/
692libs-$(CONFIG_HAS_POST) += post/
693libs-y += test/
694libs-y += test/dm/
695libs-$(CONFIG_UT_ENV) += test/env/
696libs-$(CONFIG_UT_OVERLAY) += test/overlay/
697
698libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
699
700libs-y := $(sort $(libs-y))
701
702u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
703
704u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
705
706libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
707
708u-boot-init := $(head-y)
709u-boot-main := $(libs-y)
710
711
712# Add GCC lib
713ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
714PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
715else
716PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
717endif
718PLATFORM_LIBS += $(PLATFORM_LIBGCC)
719export PLATFORM_LIBS
720export PLATFORM_LIBGCC
721
722# Special flags for CPP when processing the linker script.
723# Pass the version down so we can handle backwards compatibility
724# on the fly.
725LDPPFLAGS += \
726 -include $(srctree)/include/u-boot/u-boot.lds.h \
727 -DCPUDIR=$(CPUDIR) \
728 $(shell $(LD) --version | \
729 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
730
731#########################################################################
732#########################################################################
733
734ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
735BOARD_SIZE_CHECK = \
736 @actual=`wc -c $@ | awk '{print $$1}'`; \
737 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
738 if test $$actual -gt $$limit; then \
739 echo "$@ exceeds file size limit:" >&2 ; \
740 echo " limit: $$limit bytes" >&2 ; \
741 echo " actual: $$actual bytes" >&2 ; \
742 echo " excess: $$((actual - limit)) bytes" >&2; \
743 exit 1; \
744 fi
745else
746BOARD_SIZE_CHECK =
747endif
748
749# Statically apply RELA-style relocations (currently arm64 only)
750ifneq ($(CONFIG_STATIC_RELA),)
751# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
752DO_STATIC_RELA = \
753 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
754 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
755 tools/relocate-rela $(2) $(3) $$start $$end
756else
757DO_STATIC_RELA =
758endif
759
760# Always append ALL so that arch config.mk's can add custom ones
761ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
762
763ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
764ifeq ($(CONFIG_SPL_FSL_PBL),y)
765ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
766else
767ifneq ($(CONFIG_SECURE_BOOT), y)
768# For Secure Boot The Image needs to be signed and Header must also
769# be included. So The image has to be built explicitly
770ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
771endif
772endif
773ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
774ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
775ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
776else
777ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
778endif
779ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
780ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
781ifeq ($(CONFIG_SPL_FRAMEWORK),y)
782ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
783endif
784ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
785ifneq ($(CONFIG_SPL_TARGET),)
786ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
787endif
788ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
789ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
790ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
791
792ifneq ($(BUILD_ROM),)
793ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
794endif
795
796# enable combined SPL/u-boot/dtb rules for tegra
797ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
798ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
799ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
800endif
801
802# Add optional build target if defined in board/cpu/soc headers
803ifneq ($(CONFIG_BUILD_TARGET),)
804ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
805endif
806
807LDFLAGS_u-boot += $(LDFLAGS_FINAL)
808
809# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
810LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
811
812ifneq ($(CONFIG_SYS_TEXT_BASE),)
813LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
814endif
815
816# Normally we fill empty space with 0xff
817quiet_cmd_objcopy = OBJCOPY $@
818cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
819 $(OBJCOPYFLAGS_$(@F)) $< $@
820
821# Provide a version which does not do this, for use by EFI
822quiet_cmd_zobjcopy = OBJCOPY $@
823cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
824
825quiet_cmd_efipayload = OBJCOPY $@
826cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
827
828MKIMAGEOUTPUT ?= /dev/null
829
830quiet_cmd_mkimage = MKIMAGE $@
831cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
832 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
833
834quiet_cmd_cat = CAT $@
835cmd_cat = cat $(filter-out $(PHONY), $^) > $@
836
837append = cat $(filter-out $< $(PHONY), $^) >> $@
838
839quiet_cmd_pad_cat = CAT $@
840cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
841
842cfg: u-boot.cfg
843
844quiet_cmd_cfgcheck = CFGCHK $2
845cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
846 $(srctree)/scripts/config_whitelist.txt $(srctree)
847
848all: $(ALL-y)
849ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
850 @echo "===================== WARNING ======================"
851 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
852 @echo "(possibly in a subsequent patch in your series)"
853 @echo "before sending patches to the mailing list."
854 @echo "===================================================="
855endif
856 @# Check that this build does not use CONFIG options that we do not
857 @# know about unless they are in Kconfig. All the existing CONFIG
858 @# options are whitelisted, so new ones should not be added.
859 $(call cmd,cfgcheck,u-boot.cfg)
860
861PHONY += dtbs
862dtbs: dts/dt.dtb
863 @:
864dts/dt.dtb: checkdtc u-boot
865 $(Q)$(MAKE) $(build)=dts dtbs
866
867quiet_cmd_copy = COPY $@
868 cmd_copy = cp $< $@
869
870ifeq ($(CONFIG_OF_SEPARATE),y)
871u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
872 $(call if_changed,cat)
873
874u-boot.bin: u-boot-dtb.bin FORCE
875 $(call if_changed,copy)
876else
877u-boot.bin: u-boot-nodtb.bin FORCE
878 $(call if_changed,copy)
879endif
880
881%.imx: %.bin
882 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
883
884%.vyb: %.imx
885 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
886
887quiet_cmd_copy = COPY $@
888 cmd_copy = cp $< $@
889
890u-boot.dtb: dts/dt.dtb
891 $(call cmd,copy)
892
893OBJCOPYFLAGS_u-boot.hex := -O ihex
894
895OBJCOPYFLAGS_u-boot.srec := -O srec
896
897u-boot.hex u-boot.srec: u-boot FORCE
898 $(call if_changed,objcopy)
899
900OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
901 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
902
903binary_size_check: u-boot-nodtb.bin FORCE
904 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
905 map_size=$(shell cat u-boot.map | \
906 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
907 | sed 's/0X//g' \
908 | bc); \
909 if [ "" != "$$map_size" ]; then \
910 if test $$map_size -ne $$file_size; then \
911 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
912 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
913 exit 1; \
914 fi \
915 fi
916
917u-boot-nodtb.bin: u-boot FORCE
918 $(call if_changed,objcopy)
919 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
920 $(BOARD_SIZE_CHECK)
921
922u-boot.ldr: u-boot
923 $(CREATE_LDR_ENV)
924 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
925 $(BOARD_SIZE_CHECK)
926
927# binman
928# ---------------------------------------------------------------------------
929quiet_cmd_binman = BINMAN $@
930cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
931 -I . -I $(srctree)/board/$(BOARDDIR) $<
932
933OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
934
935OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
936
937u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
938 $(call if_changed,objcopy)
939
940#
941# U-Boot entry point, needed for booting of full-blown U-Boot
942# from the SPL U-Boot version.
943#
944ifndef CONFIG_SYS_UBOOT_START
945CONFIG_SYS_UBOOT_START := 0
946endif
947
948# Create a file containing the configuration options the image was built with
949quiet_cmd_cpp_cfg = CFG $@
950cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
951 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
952
953ifdef CONFIG_SPL_LOAD_FIT
954MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
955 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
956 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
957 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
958else
959MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
960 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
961 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
962MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
963 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
964 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
965u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
966CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
967endif
968
969MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
970
971MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
972 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
973
974MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
975 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
976 $(if $(KEYDIR),-k $(KEYDIR))
977
978MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
979 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
980
981u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
982 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
983 $(call if_changed,mkimage)
984
985u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
986 $(call if_changed,mkimage)
987
988u-boot.sha1: u-boot.bin
989 tools/ubsha1 u-boot.bin
990
991u-boot.dis: u-boot
992 $(OBJDUMP) -d $< > $@
993
994ifdef CONFIG_TPL
995SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
996else
997SPL_PAYLOAD := u-boot.bin
998endif
999
1000OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1001 --pad-to=$(CONFIG_SPL_PAD_TO)
1002u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1003 $(call if_changed,pad_cat)
1004
1005MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1006
1007lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1008 $(call if_changed,mkimage)
1009
1010OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1011
1012lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1013 $(call if_changed,objcopy)
1014
1015OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1016
1017lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1018 $(call if_changed,objcopy)
1019
1020lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1021 $(call if_changed,cat)
1022
1023CLEAN_FILES += lpc32xx-*
1024
1025OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1026 --pad-to=$(CONFIG_TPL_PAD_TO)
1027tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1028 $(call if_changed,pad_cat)
1029
1030SPL: spl/u-boot-spl.bin FORCE
1031 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1032
1033u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1034 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1035
1036MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1037
1038u-boot.ubl: u-boot-with-spl.bin FORCE
1039 $(call if_changed,mkimage)
1040
1041MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1042 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1043 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1044spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1045 $(call if_changed,mkimage)
1046
1047OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1048u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1049 $(call if_changed,pad_cat)
1050
1051u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1052 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1053u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1054 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1055
1056# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1057# Both images are created using mkimage (crc etc), so that the ROM
1058# bootloader can check its integrity. Padding needs to be done to the
1059# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1060# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1061# The resulting image containing both U-Boot images is called u-boot.spr
1062MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1063 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1064spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1065 $(call if_changed,mkimage)
1066
1067OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1068 --gap-fill=0xff
1069u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1070 $(call if_changed,pad_cat)
1071
1072ifneq ($(CONFIG_ARCH_SOCFPGA),)
1073quiet_cmd_socboot = SOCBOOT $@
1074cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1075 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1076 u-boot.img > $@ || rm -f $@
1077u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1078 $(call if_changed,socboot)
1079endif
1080
1081# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1082# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1083# the middle. This is handled by binman based on an image description in the
1084# board's device tree.
1085ifneq ($(CONFIG_X86_RESET_VECTOR),)
1086rom: u-boot.rom FORCE
1087
1088refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1089 $(call if_changed,copy)
1090
1091quiet_cmd_ldr = LD $@
1092cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1093 $(filter-out FORCE,$^) -o $@
1094
1095u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1096 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1097 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1098 $(call if_changed,binman)
1099
1100OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1101u-boot-x86-16bit.bin: u-boot FORCE
1102 $(call if_changed,objcopy)
1103endif
1104
1105ifneq ($(CONFIG_ARCH_SUNXI),)
1106u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1107 $(call if_changed,binman)
1108endif
1109
1110ifneq ($(CONFIG_TEGRA),)
1111OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1112u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1113 $(call if_changed,pad_cat)
1114
1115OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1116u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1117 $(call if_changed,pad_cat)
1118
1119u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1120 $(call if_changed,copy)
1121endif
1122
1123OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1124u-boot-app.efi: u-boot FORCE
1125 $(call if_changed,zobjcopy)
1126
1127u-boot.bin.o: u-boot.bin FORCE
1128 $(call if_changed,efipayload)
1129
1130u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1131 $(call if_changed_dep,cpp_lds)
1132
1133# Rule to link the EFI payload which contains a stub and a U-Boot binary
1134quiet_cmd_u-boot_payload ?= LD $@
1135 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1136 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1137 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1138 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1139
1140u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1141 $(call if_changed,u-boot_payload)
1142
1143OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1144u-boot-payload.efi: u-boot-payload FORCE
1145 $(call if_changed,zobjcopy)
1146
1147u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1148 $(call if_changed,cat)
1149
1150#Add a target to create boot binary having SPL binary in PBI format
1151#concatenated with u-boot binary. It is need by PowerPC SoC having
1152#internal SRAM <= 512KB.
1153MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1154 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1155 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1156
1157spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1158 $(call if_changed,mkimage)
1159
1160ifeq ($(ARCH),arm)
1161UBOOT_BINLOAD := u-boot.img
1162else
1163UBOOT_BINLOAD := u-boot.bin
1164endif
1165
1166OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1167 --gap-fill=0xff
1168
1169u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1170 $(call if_changed,pad_cat)
1171
1172# PPC4xx needs the SPL at the end of the image, since the reset vector
1173# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1174# and need to introduce a new build target with the full blown U-Boot
1175# at the start padded up to the start of the SPL image. And then concat
1176# the SPL image to the end.
1177
1178OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1179 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1180u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1181 $(call if_changed,pad_cat)
1182
1183# Create a new ELF from a raw binary file. This is useful for arm64
1184# where static relocation needs to be performed on the raw binary,
1185# but certain simulators only accept an ELF file (but don't do the
1186# relocation).
1187# FIXME refactor dts/Makefile to share target/arch detection
1188u-boot.elf: u-boot.bin
1189 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1190 $< u-boot-elf.o
1191 @$(LD) u-boot-elf.o -o $@ \
1192 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1193 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1194
1195# Rule to link u-boot
1196# May be overridden by arch/$(ARCH)/config.mk
1197quiet_cmd_u-boot__ ?= LD $@
1198 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1199 -T u-boot.lds $(u-boot-init) \
1200 --start-group $(u-boot-main) --end-group \
1201 $(PLATFORM_LIBS) -Map u-boot.map
1202
1203quiet_cmd_smap = GEN common/system_map.o
1204cmd_smap = \
1205 smap=`$(call SYSTEM_MAP,u-boot) | \
1206 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1207 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1208 -c $(srctree)/common/system_map.c -o common/system_map.o
1209
1210u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1211 $(call if_changed,u-boot__)
1212ifeq ($(CONFIG_KALLSYMS),y)
1213 $(call cmd,smap)
1214 $(call cmd,u-boot__) common/system_map.o
1215endif
1216
1217quiet_cmd_sym ?= SYM $@
1218 cmd_sym ?= $(OBJDUMP) -t $< > $@
1219u-boot.sym: u-boot FORCE
1220 $(call if_changed,sym)
1221
1222# The actual objects are generated when descending,
1223# make sure no implicit rule kicks in
1224$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1225
1226# Handle descending into subdirectories listed in $(vmlinux-dirs)
1227# Preset locale variables to speed up the build process. Limit locale
1228# tweaks to this spot to avoid wrong language settings when running
1229# make menuconfig etc.
1230# Error messages still appears in the original language
1231
1232PHONY += $(u-boot-dirs)
1233$(u-boot-dirs): prepare scripts
1234 $(Q)$(MAKE) $(build)=$@
1235
1236tools: prepare
1237# The "tools" are needed early
1238$(filter-out tools, $(u-boot-dirs)): tools
1239# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1240# is "yes"), so compile examples after U-Boot is compiled.
1241examples: $(filter-out examples, $(u-boot-dirs))
1242
1243define filechk_uboot.release
1244 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1245endef
1246
1247# Store (new) UBOOTRELEASE string in include/config/uboot.release
1248include/config/uboot.release: include/config/auto.conf FORCE
1249 $(call filechk,uboot.release)
1250
1251
1252# Things we need to do before we recursively start building the kernel
1253# or the modules are listed in "prepare".
1254# A multi level approach is used. prepareN is processed before prepareN-1.
1255# archprepare is used in arch Makefiles and when processed asm symlink,
1256# version.h and scripts_basic is processed / created.
1257
1258# Listed in dependency order
1259PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1260
1261# prepare3 is used to check if we are building in a separate output directory,
1262# and if so do:
1263# 1) Check that make has not been executed in the kernel src $(srctree)
1264prepare3: include/config/uboot.release
1265ifneq ($(KBUILD_SRC),)
1266 @$(kecho) ' Using $(srctree) as source for U-Boot'
1267 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1268 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1269 echo >&2 " in the '$(srctree)' directory.";\
1270 /bin/false; \
1271 fi;
1272endif
1273
1274# prepare2 creates a makefile if using a separate output directory
1275prepare2: prepare3 outputmakefile
1276
1277prepare1: prepare2 $(version_h) $(timestamp_h) \
1278 include/config/auto.conf
1279ifeq ($(wildcard $(LDSCRIPT)),)
1280 @echo >&2 " Could not find linker script."
1281 @/bin/false
1282endif
1283
1284archprepare: prepare1 scripts_basic
1285
1286prepare0: archprepare FORCE
1287 $(Q)$(MAKE) $(build)=.
1288
1289# All the preparing..
1290prepare: prepare0
1291
1292# Generate some files
1293# ---------------------------------------------------------------------------
1294
1295define filechk_version.h
1296 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1297 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1298 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1299 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1300endef
1301
1302# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1303# The BSD date on the other hand behaves different and would produce errors
1304# with the misused '-d' switch. Respect that and search a working date with
1305# well known pre- and suffixes for the GNU variant of date.
1306define filechk_timestamp.h
1307 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1308 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1309 DATE=""; \
1310 for date in gdate date.gnu date; do \
1311 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1312 done; \
1313 if test -n "$${DATE}"; then \
1314 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1315 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1316 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1317 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1318 else \
1319 return 42; \
1320 fi; \
1321 else \
1322 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1323 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1324 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1325 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1326 fi)
1327endef
1328
1329$(version_h): include/config/uboot.release FORCE
1330 $(call filechk,version.h)
1331
1332$(timestamp_h): $(srctree)/Makefile FORCE
1333 $(call filechk,timestamp.h)
1334
1335# ---------------------------------------------------------------------------
1336quiet_cmd_cpp_lds = LDS $@
1337cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1338 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1339
1340u-boot.lds: $(LDSCRIPT) prepare FORCE
1341 $(call if_changed_dep,cpp_lds)
1342
1343spl/u-boot-spl.bin: spl/u-boot-spl
1344 @:
1345spl/u-boot-spl: tools prepare \
1346 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1347 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1348
1349spl/sunxi-spl.bin: spl/u-boot-spl
1350 @:
1351
1352spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1353 @:
1354
1355spl/u-boot-spl.sfp: spl/u-boot-spl
1356 @:
1357
1358spl/boot.bin: spl/u-boot-spl
1359 @:
1360
1361tpl/u-boot-tpl.bin: tools prepare \
1362 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1363 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1364
1365TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1366
1367FIND := find
1368FINDFLAGS := -L
1369
1370tags ctags:
1371 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1372 -name '*.[chS]' -print`
1373 ln -s ctags tags
1374
1375etags:
1376 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1377 -name '*.[chS]' -print`
1378cscope:
1379 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1380 cscope.files
1381 cscope -b -q -k
1382
1383SYSTEM_MAP = \
1384 $(NM) $1 | \
1385 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1386 LC_ALL=C sort
1387System.map: u-boot
1388 @$(call SYSTEM_MAP,$<) > $@
1389
1390checkdtc:
1391 @if test $(call dtc-version) -lt 0104; then \
1392 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1393 false; \
1394 fi
1395
1396#########################################################################
1397
1398# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1399# R_AARCH64_RELATIVE (64-bit).
1400checkarmreloc: u-boot
1401 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1402 grep R_A | sort -u`"; \
1403 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1404 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1405 echo "$< contains unexpected relocations: $$RELOC"; \
1406 false; \
1407 fi
1408
1409env: scripts_basic
1410 $(Q)$(MAKE) $(build)=tools/$@
1411
1412tools-only: scripts_basic $(version_h) $(timestamp_h)
1413 $(Q)$(MAKE) $(build)=tools
1414
1415tools-all: export HOST_TOOLS_ALL=y
1416tools-all: env tools ;
1417
1418cross_tools: export CROSS_BUILD_TOOLS=y
1419cross_tools: tools ;
1420
1421.PHONY : CHANGELOG
1422CHANGELOG:
1423 git log --no-merges U-Boot-1_1_5.. | \
1424 unexpand -a | sed -e 's/\s\s*$$//' > $@
1425
1426#########################################################################
1427
1428###
1429# Cleaning is done on three levels.
1430# make clean Delete most generated files
1431# Leave enough to build external modules
1432# make mrproper Delete the current configuration, and all generated files
1433# make distclean Remove editor backup files, patch leftover files and the like
1434
1435# Directories & files removed with 'make clean'
1436CLEAN_DIRS += $(MODVERDIR) \
1437 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1438 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1439
1440CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1441 boot* u-boot* MLO* SPL System.map
1442
1443# Directories & files removed with 'make mrproper'
1444MRPROPER_DIRS += include/config include/generated spl tpl \
1445 .tmp_objdiff
1446MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1447 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1448
1449# clean - Delete most, but leave enough to build external modules
1450#
1451clean: rm-dirs := $(CLEAN_DIRS)
1452clean: rm-files := $(CLEAN_FILES)
1453
1454clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1455
1456clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1457
1458PHONY += $(clean-dirs) clean archclean
1459$(clean-dirs):
1460 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1461
1462# TODO: Do not use *.cfgtmp
1463clean: $(clean-dirs)
1464 $(call cmd,rmdirs)
1465 $(call cmd,rmfiles)
1466 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1467 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1468 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1469 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1470 -o -name '*.symtypes' -o -name 'modules.order' \
1471 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1472 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1473 -o -name '*.gcno' \) -type f -print | xargs rm -f
1474
1475# mrproper - Delete all generated files, including .config
1476#
1477mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1478mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1479mrproper-dirs := $(addprefix _mrproper_,scripts)
1480
1481PHONY += $(mrproper-dirs) mrproper archmrproper
1482$(mrproper-dirs):
1483 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1484
1485mrproper: clean $(mrproper-dirs)
1486 $(call cmd,rmdirs)
1487 $(call cmd,rmfiles)
1488 @rm -f arch/*/include/asm/arch
1489
1490# distclean
1491#
1492PHONY += distclean
1493
1494distclean: mrproper
1495 @find $(srctree) $(RCS_FIND_IGNORE) \
1496 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1497 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1498 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1499 -o -name '*.pyc' \) \
1500 -type f -print | xargs rm -f
1501 @rm -f boards.cfg
1502
1503backup:
1504 F=`basename $(srctree)` ; cd .. ; \
1505 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1506
1507help:
1508 @echo 'Cleaning targets:'
1509 @echo ' clean - Remove most generated files but keep the config'
1510 @echo ' mrproper - Remove all generated files + config + various backup files'
1511 @echo ' distclean - mrproper + remove editor backup and patch files'
1512 @echo ''
1513 @echo 'Configuration targets:'
1514 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1515 @echo ''
1516 @echo 'Other generic targets:'
1517 @echo ' all - Build all necessary images depending on configuration'
1518 @echo ' tests - Build U-Boot for sandbox and run tests'
1519 @echo '* u-boot - Build the bare u-boot'
1520 @echo ' dir/ - Build all files in dir and below'
1521 @echo ' dir/file.[oisS] - Build specified target only'
1522 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1523 @echo ' (requires a recent binutils and recent build (System.map))'
1524 @echo ' tags/ctags - Generate ctags file for editors'
1525 @echo ' etags - Generate etags file for editors'
1526 @echo ' cscope - Generate cscope index'
1527 @echo ' ubootrelease - Output the release version string (use with make -s)'
1528 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1529 @echo " cfg - Don't build, just create the .cfg files"
1530 @echo ''
1531 @echo 'Static analysers'
1532 @echo ' checkstack - Generate a list of stack hogs'
1533 @echo ''
1534 @echo 'Documentation targets:'
1535 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1536 @echo ''
1537 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1538 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1539 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1540 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1541 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1542 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1543 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1544 @echo ' 1: warnings which may be relevant and do not occur too often'
1545 @echo ' 2: warnings which occur quite often but may still be relevant'
1546 @echo ' 3: more obscure warnings, can most likely be ignored'
1547 @echo ' Multiple levels can be combined with W=12 or W=123'
1548 @echo ''
1549 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1550 @echo 'For further info see the ./README file'
1551
1552tests:
1553 $(srctree)/test/run
1554
1555# Documentation targets
1556# ---------------------------------------------------------------------------
1557%docs: scripts_basic FORCE
1558 $(Q)$(MAKE) $(build)=scripts build_docproc
1559 $(Q)$(MAKE) $(build)=doc/DocBook $@
1560
1561endif #ifeq ($(config-targets),1)
1562endif #ifeq ($(mixed-targets),1)
1563
1564PHONY += checkstack ubootrelease ubootversion
1565
1566checkstack:
1567 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1568 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1569
1570ubootrelease:
1571 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1572
1573ubootversion:
1574 @echo $(UBOOTVERSION)
1575
1576# Single targets
1577# ---------------------------------------------------------------------------
1578# Single targets are compatible with:
1579# - build with mixed source and output
1580# - build with separate output dir 'make O=...'
1581# - external modules
1582#
1583# target-dir => where to store outputfile
1584# build-dir => directory in kernel source tree to use
1585
1586ifeq ($(KBUILD_EXTMOD),)
1587 build-dir = $(patsubst %/,%,$(dir $@))
1588 target-dir = $(dir $@)
1589else
1590 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1591 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1592 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1593endif
1594
1595%.s: %.c prepare scripts FORCE
1596 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1597%.i: %.c prepare scripts FORCE
1598 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1599%.o: %.c prepare scripts FORCE
1600 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1601%.lst: %.c prepare scripts FORCE
1602 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1603%.s: %.S prepare scripts FORCE
1604 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1605%.o: %.S prepare scripts FORCE
1606 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1607%.symtypes: %.c prepare scripts FORCE
1608 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1609
1610# Modules
1611/: prepare scripts FORCE
1612 $(cmd_crmodverdir)
1613 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1614 $(build)=$(build-dir)
1615%/: prepare scripts FORCE
1616 $(cmd_crmodverdir)
1617 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1618 $(build)=$(build-dir)
1619%.ko: prepare scripts FORCE
1620 $(cmd_crmodverdir)
1621 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1622 $(build)=$(build-dir) $(@:.ko=.o)
1623 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1624
1625# FIXME Should go into a make.lib or something
1626# ===========================================================================
1627
1628quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1629 cmd_rmdirs = rm -rf $(rm-dirs)
1630
1631quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1632 cmd_rmfiles = rm -f $(rm-files)
1633
1634# read all saved command lines
1635
1636targets := $(wildcard $(sort $(targets)))
1637cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1638
1639ifneq ($(cmd_files),)
1640 $(cmd_files): ; # Do not try to update included dependency files
1641 include $(cmd_files)
1642endif
1643
1644endif # skip-makefile
1645
1646PHONY += FORCE
1647FORCE:
1648
1649# Declare the contents of the .PHONY variable as phony. We keep that
1650# information in a variable so we can use it in if_changed and friends.
1651.PHONY: $(PHONY)