# SPDX-License-Identifier: GPL-2.0+ VERSION = 2023 PATCHLEVEL = 04 SUBLEVEL = EXTRAVERSION = -rc1 NAME = # *DOCUMENTATION* # To see a list of typical targets execute "make help" # More info can be located in ./README # Comments in this file are targeted only to the developer, do not # expect to learn how to build the kernel reading this file. # Do not use make's built-in rules and variables # (this increases performance and avoids hard-to-debug behaviour) MAKEFLAGS += -rR # Determine target architecture for the sandbox include include/host_arch.h ifeq ("", "$(CROSS_COMPILE)") MK_ARCH="${shell uname -m}" else MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\2/p'}" endif unexport HOST_ARCH ifeq ("x86_64", $(MK_ARCH)) export HOST_ARCH=$(HOST_ARCH_X86_64) else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686")) export HOST_ARCH=$(HOST_ARCH_X86) else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l")) export HOST_ARCH=$(HOST_ARCH_AARCH64) else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7a" "armv7l")) export HOST_ARCH=$(HOST_ARCH_ARM) else ifeq ("riscv32", $(MK_ARCH)) export HOST_ARCH=$(HOST_ARCH_RISCV32) else ifeq ("riscv64", $(MK_ARCH)) export HOST_ARCH=$(HOST_ARCH_RISCV64) endif undefine MK_ARCH # Avoid funny character set dependencies unexport LC_ALL LC_COLLATE=C LC_NUMERIC=C export LC_COLLATE LC_NUMERIC # Avoid interference with shell env settings unexport GREP_OPTIONS # We are using a recursive build, so we need to do a little thinking # to get the ordering right. # # Most importantly: sub-Makefiles should only ever modify files in # their own directory. If in some directory we have a dependency on # a file in another dir (which doesn't happen often, but it's often # unavoidable when linking the built-in.o targets which finally # turn into vmlinux), we will call a sub make in that other dir, and # after that we are sure that everything which is in that other dir # is now up to date. # # The only cases where we need to modify files which have global # effects are thus separated out and done before the recursive # descending is started. They are now explicitly listed as the # prepare rule. # Beautify output # --------------------------------------------------------------------------- # # Normally, we echo the whole command before executing it. By making # that echo $($(quiet)$(cmd)), we now have the possibility to set # $(quiet) to choose other forms of output instead, e.g. # # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< # # If $(quiet) is empty, the whole command will be printed. # If it is set to "quiet_", only the short version will be printed. # If it is set to "silent_", nothing will be printed at all, since # the variable $(silent_cmd_cc_o_c) doesn't exist. # # A simple variant is to prefix commands with $(Q) - that's useful # for commands that shall be hidden in non-verbose mode. # # $(Q)ln $@ :< # # If KBUILD_VERBOSE equals 0 then the above command will be hidden. # If KBUILD_VERBOSE equals 1 then the above command is displayed. # # To put more focus on warnings, be less verbose as default # Use 'make V=1' to see the full commands ifeq ("$(origin V)", "command line") KBUILD_VERBOSE = $(V) endif ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif ifeq ($(KBUILD_VERBOSE),1) quiet = Q = else quiet=quiet_ Q = @ endif # If the user is running make -s (silent mode), suppress echoing of # commands ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) quiet=silent_ endif else # make-3.8x ifneq ($(filter s% -s%,$(MAKEFLAGS)),) quiet=silent_ endif endif export quiet Q KBUILD_VERBOSE # kbuild supports saving output files in a separate directory. # To locate output files in a separate directory two syntaxes are supported. # In both cases the working directory must be the root of the kernel src. # 1) O= # Use "make O=dir/to/store/output/files/" # # 2) Set KBUILD_OUTPUT # Set the environment variable KBUILD_OUTPUT to point to the directory # where the output files shall be placed. # export KBUILD_OUTPUT=dir/to/store/output/files/ # make # # The O= assignment takes precedence over the KBUILD_OUTPUT environment # variable. # KBUILD_SRC is set on invocation of make in OBJ directory # KBUILD_SRC is not intended to be used by the regular user (for now) ifeq ($(KBUILD_SRC),) # OK, Make called in directory where kernel src resides # Do we want to locate output files in a separate directory? ifeq ("$(origin O)", "command line") KBUILD_OUTPUT := $(O) endif # That's our default target when none is given on the command line PHONY := _all _all: # Cancel implicit rules on top Makefile $(CURDIR)/Makefile Makefile: ; ifneq ($(KBUILD_OUTPUT),) # Invoke a second make in the output directory, passing relevant variables # check that the output directory actually exists saved-output := $(KBUILD_OUTPUT) KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ && /bin/pwd) $(if $(KBUILD_OUTPUT),, \ $(error failed to create output directory "$(saved-output)")) # Look for make include files relative to root of kernel src # # This does not become effective immediately because MAKEFLAGS is re-parsed # once after the Makefile is read. It is OK since we are going to invoke # 'sub-make' below. MAKEFLAGS += --include-dir=$(CURDIR) PHONY += $(MAKECMDGOALS) sub-make $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make @: sub-make: FORCE $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) # Leave processing to above invocation of make skip-makefile := 1 endif # ifneq ($(KBUILD_OUTPUT),) endif # ifeq ($(KBUILD_SRC),) # We process the rest of the Makefile if this is the final invocation of make ifeq ($(skip-makefile),) # Do not print "Entering directory ...", # but we want to display it when entering to the output directory # so that IDEs/editors are able to understand relative filenames. MAKEFLAGS += --no-print-directory # Call a source code checker (by default, "sparse") as part of the # C compilation. # # Use 'make C=1' to enable checking of only re-compiled files. # Use 'make C=2' to enable checking of *all* source files, regardless # of whether they are re-compiled or not. # # See the file "doc/sparse.txt" for more details, including # where to get the "sparse" utility. ifeq ("$(origin C)", "command line") KBUILD_CHECKSRC = $(C) endif ifndef KBUILD_CHECKSRC KBUILD_CHECKSRC = 0 endif # Use make M=dir to specify directory of external module to build # Old syntax make ... SUBDIRS=$PWD is still supported # Setting the environment variable KBUILD_EXTMOD take precedence ifdef SUBDIRS KBUILD_EXTMOD ?= $(SUBDIRS) endif ifeq ("$(origin M)", "command line") KBUILD_EXTMOD := $(M) endif # If building an external module we do not care about the all: rule # but instead _all depend on modules PHONY += all ifeq ($(KBUILD_EXTMOD),) _all: all else _all: modules endif ifeq ($(KBUILD_SRC),) # building in the source tree srctree := . else ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) # building in a subdirectory of the source tree srctree := .. else srctree := $(KBUILD_SRC) endif endif objtree := . src := $(srctree) obj := $(objtree) VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) export srctree objtree VPATH # Make sure CDPATH settings don't interfere unexport CDPATH ######################################################################### HOSTARCH := $(shell uname -m | \ sed -e s/i.86/x86/ \ -e s/sun4u/sparc64/ \ -e s/arm.*/arm/ \ -e s/sa110/arm/ \ -e s/ppc64/powerpc/ \ -e s/ppc/powerpc/ \ -e s/macppc/powerpc/\ -e s/sh.*/sh/) HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ sed -e 's/\(cygwin\).*/cygwin/') export HOSTARCH HOSTOS ######################################################################### # set default to nothing for native builds ifeq ($(HOSTARCH),$(ARCH)) CROSS_COMPILE ?= endif KCONFIG_CONFIG ?= .config export KCONFIG_CONFIG # SHELL used by kbuild CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) HOSTCC = cc HOSTCXX = c++ KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) # With the move to GCC 6, we have implicitly upgraded our language # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). # Some Linux distributions (including RHEL7, SLES13, Debian 8) still # have older compilers as their default, so we make it explicit for # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). CSTD_FLAG := -std=gnu11 KBUILD_HOSTCFLAGS += $(CSTD_FLAG) ifeq ($(HOSTOS),cygwin) KBUILD_HOSTCFLAGS += -ansi endif # Mac OS X / Darwin's C preprocessor is Apple specific. It # generates numerous errors and warnings. We want to bypass it # and use GNU C's cpp. To do this we pass the -traditional-cpp # option to the compiler. Note that the -traditional-cpp flag # DOES NOT have the same semantics as GNU C's flag, all it does # is invoke the GNU preprocessor in stock ANSI/ISO C fashion. # # Apple's linker is similar, thanks to the new 2 stage linking # multiple symbol definitions are treated as errors, hence the # -multiply_defined suppress option to turn off this error. # ifeq ($(HOSTOS),darwin) # get major and minor product version (e.g. '10' and '6' for Snow Leopard) DARWIN_MAJOR_VERSION := $(shell sw_vers -productVersion | cut -f 1 -d '.') DARWIN_MINOR_VERSION := $(shell sw_vers -productVersion | cut -f 2 -d '.') os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \ $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) # Snow Leopards build environment has no longer restrictions as described above HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") # macOS Mojave (10.14.X) # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") endif # Decide whether to build built-in, modular, or both. # Normally, just do built-in. KBUILD_MODULES := KBUILD_BUILTIN := 1 # If we have only "make modules", don't compile built-in objects. # When we're building modules with modversions, we need to consider # the built-in objects during the descend as well, in order to # make sure the checksums are up to date before we record them. ifeq ($(MAKECMDGOALS),modules) KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) endif # If we have "make modules", compile modules # in addition to whatever we do anyway. # Just "make" or "make all" shall build modules as well # U-Boot does not need modules #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) # KBUILD_MODULES := 1 #endif #ifeq ($(MAKECMDGOALS),) # KBUILD_MODULES := 1 #endif # Check ths size of a binary: # Args: # $1: File to check # #2: Size limit in bytes (decimal or 0xhex) define size_check actual=$$( wc -c $1 | awk '{print $$1}'); \ limit=$$( printf "%d" $2 ); \ if test $$actual -gt $$limit; then \ echo "$1 exceeds file size limit:" >&2; \ echo " limit: $$(printf %#x $$limit) bytes" >&2; \ echo " actual: $$(printf %#x $$actual) bytes" >&2; \ echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\ exit 1; \ fi endef export size_check export KBUILD_MODULES KBUILD_BUILTIN export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD # We need some generic definitions (do not try to remake the file). scripts/Kbuild.include: ; include scripts/Kbuild.include # Make variables (CC, etc...) AS = $(CROSS_COMPILE)as # Always use GNU ld ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) LD = $(CROSS_COMPILE)ld.bfd else LD = $(CROSS_COMPILE)ld endif CC = $(CROSS_COMPILE)gcc CPP = $(CC) -E AR = $(CROSS_COMPILE)ar NM = $(CROSS_COMPILE)nm LDR = $(CROSS_COMPILE)ldr STRIP = $(CROSS_COMPILE)strip OBJCOPY = $(CROSS_COMPILE)objcopy OBJDUMP = $(CROSS_COMPILE)objdump LEX = flex YACC = bison AWK = awk PERL = perl PYTHON ?= python PYTHON2 = python2 PYTHON3 ?= python3 # The devicetree compiler and pylibfdt are automatically built unless DTC is # provided. If DTC is provided, it is assumed the pylibfdt is available too. DTC_INTREE := $(objtree)/scripts/dtc/dtc DTC ?= $(DTC_INTREE) DTC_MIN_VERSION := 010406 CHECK = sparse CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ -Wno-format-security \ -fno-builtin -ffreestanding $(CSTD_FLAG) KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing KBUILD_AFLAGS := -D__ASSEMBLY__ KBUILD_LDFLAGS := ifeq ($(cc-name),clang) ifneq ($(CROSS_COMPILE),) CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) endif ifneq ($(GCC_TOOLCHAIN),) CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) endif KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) endif # Don't generate position independent code KBUILD_CFLAGS += $(call cc-option,-fno-PIE) KBUILD_AFLAGS += $(call cc-option,-fno-PIE) # Read UBOOTRELEASE from include/config/uboot.release (if it exists) UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS export KBUILD_CFLAGS KBUILD_AFLAGS export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) # When compiling out-of-tree modules, put MODVERDIR in the module # tree rather than in the kernel tree. The kernel tree might # even be read-only. export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions # Files to ignore in find ... statements export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ -name CVS -o -name .pc -o -name .hg -o -name .git \) \ -prune -o export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ --exclude CVS --exclude .pc --exclude .hg --exclude .git # =========================================================================== # Rules shared between *config targets and build targets # Basic helpers built in scripts/ PHONY += scripts_basic scripts_basic: $(Q)$(MAKE) $(build)=scripts/basic $(Q)rm -f .tmp_quiet_recordmcount # To avoid any implicit rule to kick in, define an empty command. scripts/basic/%: scripts_basic ; PHONY += outputmakefile # outputmakefile generates a Makefile in the output directory, if using a # separate output directory. This allows convenient use of make in the # output directory. outputmakefile: ifneq ($(KBUILD_SRC),) $(Q)ln -fsn $(srctree) source $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) endif # To make sure we do not include .config for any of the *config targets # catch them early, and hand them over to scripts/kconfig/Makefile # It is allowed to specify more targets when calling make, including # mixing *config targets and build targets. # For example 'make oldconfig all'. # Detect when mixed targets is specified, and make a second invocation # of make so .config is not included in this case either (for *config). version_h := include/generated/version_autogenerated.h timestamp_h := include/generated/timestamp_autogenerated.h defaultenv_h := include/generated/defaultenv_autogenerated.h dt_h := include/generated/dt.h env_h := include/generated/environment.h no-dot-config-targets := clean clobber mrproper distclean \ help %docs check% coccicheck \ ubootversion backup tests check pcheck qcheck tcheck \ pylint pylint_err config-targets := 0 mixed-targets := 0 dot-config := 1 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) dot-config := 0 endif endif ifeq ($(KBUILD_EXTMOD),) ifneq ($(filter config %config,$(MAKECMDGOALS)),) config-targets := 1 ifneq ($(words $(MAKECMDGOALS)),1) mixed-targets := 1 endif endif endif ifeq ($(mixed-targets),1) # =========================================================================== # We're called with mixed targets (*config and build targets). # Handle them one by one. PHONY += $(MAKECMDGOALS) __build_one_by_one $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one @: __build_one_by_one: $(Q)set -e; \ for i in $(MAKECMDGOALS); do \ $(MAKE) -f $(srctree)/Makefile $$i; \ done else ifeq ($(config-targets),1) # =========================================================================== # *config targets only - make sure prerequisites are updated, and descend # in scripts/kconfig to make the *config target KBUILD_DEFCONFIG := sandbox_defconfig export KBUILD_DEFCONFIG KBUILD_KCONFIG config: scripts_basic outputmakefile FORCE $(Q)$(MAKE) $(build)=scripts/kconfig $@ %config: scripts_basic outputmakefile FORCE $(Q)$(MAKE) $(build)=scripts/kconfig $@ else # =========================================================================== # Build targets only - this includes vmlinux, arch specific targets, clean # targets and others. In general all targets except *config targets. # Additional helpers built in scripts/ # Carefully list dependencies so we do not try to build scripts twice # in parallel PHONY += scripts scripts: scripts_basic scripts_dtc include/config/auto.conf $(Q)$(MAKE) $(build)=$(@) ifeq ($(dot-config),1) # Read in config -include include/config/auto.conf # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. -include include/config/auto.conf.cmd # To avoid any implicit rule to kick in, define an empty command $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; # If .config is newer than include/config/auto.conf, someone tinkered # with it and forgot to run make oldconfig. # if auto.conf.cmd is missing then we are probably in a cleaned tree so # we execute the config step to be sure to catch updated Kconfig files include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig @# If the following part fails, include/config/auto.conf should be @# deleted so "make silentoldconfig" will be re-run on the next build. $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ { rm -f include/config/auto.conf; false; } @# include/config.h has been updated after "make silentoldconfig". @# We need to touch include/config/auto.conf so it gets newer @# than include/config.h. @# Otherwise, 'make silentoldconfig' would be invoked twice. $(Q)touch include/config/auto.conf u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) -include include/autoconf.mk -include include/autoconf.mk.dep # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf # is up-to-date. When we switch to a different board configuration, old CONFIG # macros are still remaining in include/config/auto.conf. Without the following # gimmick, wrong config.mk would be included leading nasty warnings/errors. ifneq ($(wildcard $(KCONFIG_CONFIG)),) ifneq ($(wildcard include/config/auto.conf),) autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ include/config/auto.conf) ifeq ($(autoconf_is_old),) include config.mk include arch/$(ARCH)/Makefile endif endif endif # These are set by the arch-specific config.mk. Make sure they are exported # so they can be used when building an EFI application. export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib export CFLAGS_EFI # Compiler flags to add when building EFI app export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app export EFI_TARGET # binutils target if EFI is natively supported export LTO_ENABLE # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO ifeq ($(NO_LTO),) LTO_ENABLE=$(if $(CONFIG_LTO),y) endif # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use # that (or fail if absent). Otherwise, search for a linker script in a # standard location. ifndef LDSCRIPT #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug ifdef CONFIG_SYS_LDSCRIPT # need to strip off double quotes LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) endif endif # If there is no specified link script, we look in a number of places for it ifndef LDSCRIPT ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds endif endif else # Dummy target needed, because used as prerequisite include/config/auto.conf: ; endif # $(dot-config) ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \ $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) # Avoid false positives -Wmaybe-uninitialized # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) endif # # Xtensa linker script cannot be preprocessed with -ansi because of # preprocessor operations on strings that don't make C identifiers. # ifeq ($(CONFIG_XTENSA),) LDPPFLAGS += -ansi endif ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE KBUILD_CFLAGS += -Os endif ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED KBUILD_CFLAGS += -O2 endif ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG KBUILD_CFLAGS += -Og -Wno-maybe-uninitialized # Avoid false positives -Wmaybe-uninitialized # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 KBUILD_CFLAGS += -Wno-maybe-uninitialized endif LTO_CFLAGS := LTO_FINAL_LDFLAGS := export LTO_CFLAGS LTO_FINAL_LDFLAGS ifeq ($(LTO_ENABLE),y) ifeq ($(cc-name),clang) LTO_CFLAGS += -DLTO_ENABLE -flto LTO_FINAL_LDFLAGS += -flto AR = $(shell $(CC) -print-prog-name=llvm-ar) NM = $(shell $(CC) -print-prog-name=llvm-nm) else NPROC := $(shell nproc 2>/dev/null || echo 1) LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC) LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) # use plugin aware tools AR = $(CROSS_COMPILE)gcc-ar NM = $(CROSS_COMPILE)gcc-nm endif CFLAGS_NON_EFI += $(LTO_CFLAGS) KBUILD_CFLAGS += $(LTO_CFLAGS) endif ifeq ($(CONFIG_STACKPROTECTOR),y) KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) CFLAGS_EFI += $(call cc-option,-fno-stack-protector) else KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) endif KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) # disable pointer signed / unsigned warnings in gcc 4.0 KBUILD_CFLAGS += -Wno-pointer-sign # disable stringop warnings in gcc 8+ KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) # Enabled with W=2, disabled by default as noisy KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) # change __FILE__ to the relative path from the srctree KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) KBUILD_CFLAGS += -gdwarf-4 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g # option to the assembler. KBUILD_AFLAGS += -gdwarf-4 # Report stack usage if supported # ARC tools based on GCC 7.1 has an issue with stack usage # with naked functions, see commit message for more details ifndef CONFIG_ARC ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) KBUILD_CFLAGS += -fstack-usage endif endif KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) ifdef CONFIG_CC_IS_CLANG KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) KBUILD_CFLAGS += $(call cc-disable-warning, gnu) KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) # Quiet clang warning: comparison of unsigned expression < 0 is always false KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the # source of a reference will be _MergedGlobals and not on of the whitelisted names. # See modpost pattern 2 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) endif # These warnings generated too much noise in a regular build. # Use make W=1 to enable them (see scripts/Makefile.extrawarn) KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) # Prohibit date/time macros, which would make the build non-deterministic KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) include scripts/Makefile.extrawarn # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments KBUILD_CPPFLAGS += $(KCPPFLAGS) KBUILD_AFLAGS += $(KAFLAGS) KBUILD_CFLAGS += $(KCFLAGS) KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) # Use UBOOTINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option UBOOTINCLUDE := \ -Iinclude \ $(if $(KBUILD_SRC), -I$(srctree)/include) \ $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ $(if $(CONFIG_HAS_THUMB2), \ $(if $(CONFIG_CPU_V7M), \ -I$(srctree)/arch/arm/thumb1/include), \ -I$(srctree)/arch/arm/thumb1/include)) \ -I$(srctree)/arch/$(ARCH)/include \ -include $(srctree)/include/linux/kconfig.h NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) # FIX ME cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ $(NOSTDINC_FLAGS) c_flags := $(KBUILD_CFLAGS) $(cpp_flags) ######################################################################### # U-Boot objects....order is important (i.e. start must be first) HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) libs-$(CONFIG_API) += api/ libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ libs-y += boot/ libs-y += cmd/ libs-y += common/ libs-$(CONFIG_OF_EMBED) += dts/ libs-y += env/ libs-y += lib/ libs-y += fs/ libs-y += net/ libs-y += disk/ libs-y += drivers/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ libs-y += drivers/usb/cdns3/ libs-y += drivers/usb/dwc3/ libs-y += drivers/usb/common/ libs-y += drivers/usb/emul/ libs-y += drivers/usb/eth/ libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ libs-y += drivers/usb/host/ libs-y += drivers/usb/mtu3/ libs-y += drivers/usb/musb/ libs-y += drivers/usb/musb-new/ libs-y += drivers/usb/isp1760/ libs-y += drivers/usb/phy/ libs-y += drivers/usb/ulpi/ ifdef CONFIG_POST libs-y += post/ endif libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/ libs-$(CONFIG_UT_ENV) += test/env/ libs-$(CONFIG_UT_OPTEE) += test/optee/ libs-$(CONFIG_UT_OVERLAY) += test/overlay/ libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) libs-y := $(sort $(libs-y)) u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) u-boot-init := $(head-y) u-boot-main := $(libs-y) # Add GCC lib ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a else PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc endif PLATFORM_LIBS += $(PLATFORM_LIBGCC) ifdef CONFIG_CC_COVERAGE KBUILD_CFLAGS += --coverage PLATFORM_LIBGCC += -lgcov endif export PLATFORM_LIBS export PLATFORM_LIBGCC # Special flags for CPP when processing the linker script. # Pass the version down so we can handle backwards compatibility # on the fly. LDPPFLAGS += \ -include $(srctree)/include/u-boot/u-boot.lds.h \ -DCPUDIR=$(CPUDIR) \ $(shell $(LD) --version | \ sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') ######################################################################### ######################################################################### ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) else BOARD_SIZE_CHECK = endif ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) else SPL_SIZE_CHECK = endif ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) else TPL_SIZE_CHECK = endif ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0) VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT)) else VPL_SIZE_CHECK = endif # Statically apply RELA-style relocations (currently arm64 only) # This is useful for arm64 where static relocation needs to be performed on # the raw binary, but certain simulators only accept an ELF file (but don't # do the relocation). ifneq ($(CONFIG_STATIC_RELA),) # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base quiet_cmd_static_rela = RELOC $@ cmd_static_rela = \ tools/relocate-rela $(3) $(2) else quiet_cmd_static_rela = cmd_static_rela = endif # Always append INPUTS so that arch config.mk's can add custom ones INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin ifeq ($(CONFIG_SPL_FSL_PBL),y) INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin else ifneq ($(CONFIG_NXP_ESBC), y) # For Secure Boot The Image needs to be signed and Header must also # be included. So The image has to be built explicitly INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl endif endif INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img else ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img else INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img endif endif INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin # Allow omitting the .dtb output if it is not normally used INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb) ifeq ($(CONFIG_SPL_FRAMEWORK),y) INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img endif INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb ifneq ($(CONFIG_SPL_TARGET),) INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) endif INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi # Generate this input file for binman ifeq ($(CONFIG_SPL),) INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin endif # Add optional build target if defined in board/cpu/soc headers ifneq ($(CONFIG_BUILD_TARGET),) INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) endif ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) INPUTS-y += init_sp_bss_offset_check endif ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_) INPUTS-y += u-boot.img endif INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) LDFLAGS_u-boot += $(LDFLAGS_FINAL) # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) # ld.lld support LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs) LDFLAGS_u-boot += --build-id=none ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE) endif # insure the checker run with the right endianness CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) # the checker needs the correct machine size CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) # Normally we fill empty space with 0xff quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ $(OBJCOPYFLAGS_$(@F)) $< $@ # Provide a version which does not do this, for use by EFI quiet_cmd_zobjcopy = OBJCOPY $@ cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ quiet_cmd_efipayload = OBJCOPY $@ cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ MKIMAGEOUTPUT ?= /dev/null quiet_cmd_mkimage = MKIMAGE $@ cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) quiet_cmd_mkfitimage = MKIMAGE $@ cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) quiet_cmd_cat = CAT $@ cmd_cat = cat $(filter-out $(PHONY), $^) > $@ append = cat $(filter-out $< $(PHONY), $^) >> $@ quiet_cmd_pad_cat = CAT $@ cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } quiet_cmd_lzma = LZMA $@ cmd_lzma = lzma -c -z -k -9 $< > $@ cfg: u-boot.cfg quiet_cmd_ofcheck = OFCHK $2 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \ $(srctree)/scripts/of_allowlist.txt # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) got = $(foreach cfg,$(1),$($(cfg))) # expected value 'y for each one expect = $(foreach cfg,$(1),y) # Show a deprecation message # Args: # 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") # 2: Name of component (e.g . "Ethernet drivers") # 3: Release deadline (e.g. "v202.07") # 4: Condition to require before checking (e.g. "$(CONFIG_NET)") # Note: Script avoids bash construct, hence the strange double 'if' # (patches welcome!) define deprecated @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ echo >&2 "===================== WARNING ======================"; \ echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ echo >&2 "for $(2)). Please update the board to use"; \ echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ echo >&2 "update by the deadline may result in board removal."; \ echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \ echo >&2 "===================================================="; \ fi; fi endef # Timestamp file to make sure that binman always runs .binman_stamp: $(INPUTS-y) FORCE ifeq ($(CONFIG_BINMAN),y) $(call if_changed,binman) endif @touch $@ all: .binman_stamp ifeq ($(CONFIG_DEPRECATED),y) $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") endif ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) @echo >&2 "===================== WARNING ======================" @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" @echo >&2 "be used for debugging purposes. Please use" @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." @echo >&2 "See doc/develop/devicetree/control.rst for more info." @echo >&2 "====================================================" endif ifneq ($(CONFIG_SPL_FIT_GENERATOR),) @echo >&2 "===================== WARNING ======================" @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" @echo >&2 "to binman instead, to avoid the proliferation of" @echo >&2 "arch-specific scripts with no tests." @echo >&2 "====================================================" endif $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) @# CFG_SYS_TIMER_RATE has brackets in it for some boards which @# confuses this rule. Use if() to send just a single character which @# is enable to tell 'deprecated' that one of these symbols exists $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x)) $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL)) $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI)) @# Check that this build does not override OF_HAS_PRIOR_STAGE by @# disabling OF_BOARD. $(call cmd,ofcheck,$(KCONFIG_CONFIG)) PHONY += dtbs dtbs: dts/dt.dtb @: dts/dt.dtb: u-boot $(Q)$(MAKE) $(build)=dts dtbs quiet_cmd_copy = COPY $@ cmd_copy = cp $< $@ ifeq ($(CONFIG_MULTI_DTB_FIT),y) ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) FINAL_DTB_CONTAINER = fit-dtb.blob.lzo else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) FINAL_DTB_CONTAINER = fit-dtb.blob.gz else FINAL_DTB_CONTAINER = fit-dtb.blob endif fit-dtb.blob.gz: fit-dtb.blob @gzip -kf9 $< > $@ fit-dtb.blob.lzo: fit-dtb.blob @lzop -f9 $< > $@ fit-dtb.blob: dts/dt.dtb FORCE $(call if_changed,mkimage) ifneq ($(SOURCE_DATE_EPOCH),) touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob chmod 0600 fit-dtb.blob endif MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ -a 0 -e 0 -E \ $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 ifneq ($(EXT_DTB),) u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) $(call if_changed,cat) else u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) $(call if_changed,cat) endif u-boot.bin: u-boot-fit-dtb.bin FORCE $(call if_changed,copy) ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE $(call if_changed,cat) endif else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.) ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE $(call if_changed,cat) endif u-boot.bin: u-boot-dtb.bin FORCE $(call if_changed,copy) else u-boot.bin: u-boot-nodtb.bin FORCE $(call if_changed,copy) endif # we call Makefile in arch/arm/mach-imx which # has targets which are dependent on targets defined # here. make could not resolve them and we must ensure # that they are finished before calling imx targets ifeq ($(CONFIG_MULTI_DTB_FIT),y) IMX_DEPS = u-boot-fit-dtb.bin endif %.imx: $(IMX_DEPS) %.bin $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ $(BOARD_SIZE_CHECK) %.vyb: %.imx $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ quiet_cmd_copy = COPY $@ cmd_copy = cp $< $@ u-boot.dtb: dts/dt.dtb $(call cmd,copy) OBJCOPYFLAGS_u-boot.hex := -O ihex OBJCOPYFLAGS_u-boot.srec := -O srec u-boot.hex u-boot.srec: u-boot FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) u-boot-elf.srec: u-boot.elf FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) spl/u-boot-spl.srec: spl/u-boot-spl FORCE $(call if_changed,objcopy) %.scif: %.srec $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec)) binary_size_check: u-boot-nodtb.bin FORCE @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ map_size=$(shell cat u-boot.map | \ awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ | sed 's/0X//g' \ | bc); \ if [ "" != "$$map_size" ]; then \ if test $$map_size -ne $$file_size; then \ echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ exit 1; \ fi; \ fi ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) else subtract_sys_malloc_f_len = true endif # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is # so low that the DTB could probably use 90%+ of the available space, for # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be # safe for now and tweak this later if space becomes tight. # A rejected alternative would be to check that some absolute minimum stack # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is # deliberately build-specific, to take account of build-to-build stack usage # differences due to different feature sets, there is no common absolute value # to check against. init_sp_bss_offset_check: u-boot.dtb FORCE @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ $(subtract_sys_malloc_f_len) ; \ quarter_space=$$(($${space} / 4)) ; \ if [ $${dtb_size} -gt $${quarter_space} ]; then \ echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ exit 1 ; \ fi endif shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } quiet_cmd_objcopy_uboot = OBJCOPY $@ ifdef cmd_static_rela cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; } else cmd_objcopy_uboot = $(cmd_objcopy) endif u-boot-nodtb.bin: u-boot FORCE $(call if_changed,objcopy_uboot) $(BOARD_SIZE_CHECK) u-boot.ldr: u-boot $(CREATE_LDR_ENV) $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) $(BOARD_SIZE_CHECK) # binman # --------------------------------------------------------------------------- # Use 'make BINMAN_DEBUG=1' to enable debugging # Use 'make BINMAN_VERBOSE=3' to set vebosity level default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) quiet_cmd_binman = BINMAN $@ cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \ --toolpath $(objtree)/tools \ $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ build -u -d u-boot.dtb -O . -m \ $(if $(BINMAN_ALLOW_MISSING),--allow-missing --ignore-missing) \ -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ $(foreach f,$(BINMAN_INDIRS),-I $(f)) \ -a atf-bl31-path=${BL31} \ -a tee-os-path=${TEE} \ -a opensbi-path=${OPENSBI} \ -a default-dt=$(default_dt) \ -a scp-path=$(SCP) \ -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \ $(BINMAN_$(@F)) OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE $(call if_changed,objcopy) # # U-Boot entry point, needed for booting of full-blown U-Boot # from the SPL U-Boot version. # ifndef CFG_SYS_UBOOT_START CFG_SYS_UBOOT_START := $(CONFIG_TEXT_BASE) endif # Boards with more complex image requirements can provide an .its source file # or a generator script # NOTE: Please do not use this. We are migrating away from Makefile rules to use # binman instead. ifneq ($(CONFIG_SPL_FIT_SOURCE),"") U_BOOT_ITS := u-boot.its $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) $(call if_changed,copy) else ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) U_BOOT_ITS := u-boot.its $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ endif endif ifdef CONFIG_SPL_LOAD_FIT MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) else MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log endif MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) # Some boards have the kwbimage.cfg file written in advance, while some # other boards generate it on the fly during the build in the build tree. # Let's check if the file exists in the build tree first, otherwise we # fall back to use the one in the source tree. KWD_CONFIG_FILE = $(shell \ if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ else \ echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ fi) MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \ -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ $(if $(KEYDIR),-k $(KEYDIR)) MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage UBOOT_BIN := u-boot.bin MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" u-boot.bin.lzma: u-boot.bin FORCE $(call if_changed,lzma) u-boot-lzma.img: u-boot.bin.lzma FORCE $(call if_changed,mkimage) u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ ,$(UBOOT_BIN)) FORCE $(call if_changed,mkimage) $(BOARD_SIZE_CHECK) ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) MKIMAGEFLAGS_u-boot.itb = else MKIMAGEFLAGS_u-boot.itb = -E endif MKIMAGEFLAGS_u-boot.itb += -B 0x8 ifdef U_BOOT_ITS u-boot.itb: u-boot-nodtb.bin \ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \ $(U_BOOT_ITS) FORCE $(call if_changed,mkfitimage) $(BOARD_SIZE_CHECK) endif u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE $(call if_changed,mkimage) $(BOARD_SIZE_CHECK) u-boot.sha1: u-boot.bin tools/ubsha1 u-boot.bin u-boot.dis: u-boot $(OBJDUMP) -d $< > $@ ifneq ($(CONFIG_SPL_PAYLOAD),) SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) else SPL_PAYLOAD := u-boot.bin endif SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ --pad-to=$(CONFIG_SPL_PAD_TO) u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE $(call if_changed,pad_cat) ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) lpc32xx-spl.img: spl/u-boot-spl.bin FORCE $(call if_changed,mkimage) OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE $(call if_changed,objcopy) lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE $(call if_changed,cat) endif OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ --pad-to=$(CONFIG_TPL_PAD_TO) tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE $(call if_changed,pad_cat) SPL: spl/u-boot-spl.bin FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) u-boot.cnt: u-boot.bin FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ else ifeq ($(CONFIG_BINMAN),y) flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE $(call if_changed,binman) else flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ endif endif #endif u-boot.uim: u-boot.bin FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE) u-boot.ubl: u-boot-with-spl.bin FORCE $(call if_changed,mkimage) MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \ -T aisimage -e $(CONFIG_SPL_TEXT_BASE) spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE $(call if_changed,mkimage) OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE $(call if_changed,pad_cat) u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb u-boot.sb: u-boot.bin spl/u-boot-spl.bin $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE $(call if_changed,mkimage) ifneq ($(CONFIG_ARCH_SOCFPGA),) quiet_cmd_gensplx4 = GENSPLX4 $@ cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ --pad-to=$(CONFIG_SPL_PAD_TO) \ spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE $(call if_changed,gensplx4) quiet_cmd_socboot = SOCBOOT $@ cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE $(call if_changed,socboot) quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ spl/u-boot-spl.sfp spl/u-boot-spl.pad \ spl/u-boot-spl.sfp spl/u-boot-spl.pad \ spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ { rm -f $@ spl/u-boot-spl.pad; false; } u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE $(call if_changed,gensplpadx4) quiet_cmd_socnandboot = SOCNANDBOOT $@ cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE $(call if_changed,socnandboot) endif ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE $(call if_changed,binman) OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec u-boot-br.bin: u-boot FORCE $(call if_changed,objcopy) endif quiet_cmd_ldr = LD $@ cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ $(filter-out FORCE,$^) -o $@ ifdef CONFIG_X86 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 u-boot-x86-start16.bin: u-boot FORCE $(call if_changed,objcopy) OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec u-boot-x86-reset16.bin: u-boot FORCE $(call if_changed,objcopy) endif # CONFIG_X86 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) u-boot-app.efi: u-boot FORCE $(call if_changed,zobjcopy) u-boot.bin.o: u-boot.bin FORCE $(call if_changed,efipayload) u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE $(call if_changed_dep,cpp_lds) # Rule to link the EFI payload which contains a stub and a U-Boot binary quiet_cmd_u-boot_payload ?= LD $@ cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ -T u-boot-payload.lds arch/x86/cpu/call32.o \ lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE $(call if_changed,u-boot_payload) OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) u-boot-payload.efi: u-boot-payload FORCE $(call if_changed,zobjcopy) u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE $(call if_changed,cat) #Add a target to create boot binary having SPL binary in PBI format #concatenated with u-boot binary. It is need by PowerPC SoC having #internal SRAM <= 512KB. MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE $(call if_changed,mkimage) ifeq ($(ARCH),arm) UBOOT_BINLOAD := u-boot.img else UBOOT_BINLOAD := u-boot.bin endif OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ --gap-fill=0xff u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE $(call if_changed,pad_cat) # PPC4xx needs the SPL at the end of the image, since the reset vector # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target # and need to introduce a new build target with the full blown U-Boot # at the start padded up to the start of the SPL image. And then concat # the SPL image to the end. OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE $(call if_changed,pad_cat) quiet_cmd_u-boot-elf ?= LD $@ cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \ -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \ -Ttext=$(CONFIG_TEXT_BASE) u-boot.elf: u-boot.bin u-boot-elf.lds $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o $(call if_changed,u-boot-elf) u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE $(call if_changed_dep,cpp_lds) # MediaTek's ARM-based u-boot needs a header to contains its load address # which is parsed by the BootROM. # If the SPL build is enabled, the header will be added to the spl binary, # and the spl binary and the u-boot.img will be combined into one file. # Otherwise the header will be added to the u-boot.bin directly. ifeq ($(CONFIG_SPL),y) spl/u-boot-spl-mtk.bin: spl/u-boot-spl u-boot-mtk.bin: u-boot-with-spl.bin $(call if_changed,copy) else MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" u-boot-mtk.bin: u-boot.bin FORCE $(call if_changed,mkimage) endif quiet_cmd_endian_swap = SWAP $@ cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ u-boot-swap.bin: u-boot.bin FORCE $(call if_changed,endian_swap) ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) # Generate linker list symbols references to force compiler to not optimize # them away when compiling with LTO ifeq ($(LTO_ENABLE),y) u-boot-keep-syms-lto := keep-syms-lto.o u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) quiet_cmd_keep_syms_lto = KSL $@ cmd_keep_syms_lto = \ $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ quiet_cmd_keep_syms_lto_cc = KSLCC $@ cmd_keep_syms_lto_cc = \ $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< $(u-boot-keep-syms-lto_c): $(u-boot-main) $(call if_changed,keep_syms_lto) $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) $(call if_changed,keep_syms_lto_cc) else u-boot-keep-syms-lto := endif # Rule to link u-boot # May be overridden by arch/$(ARCH)/config.mk ifeq ($(LTO_ENABLE),y) quiet_cmd_u-boot__ ?= LTO $@ cmd_u-boot__ ?= \ $(CC) -nostdlib -nostartfiles \ $(LTO_FINAL_LDFLAGS) $(c_flags) \ $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ -T u-boot.lds $(u-boot-init) \ -Wl,--whole-archive \ $(u-boot-main) \ $(u-boot-keep-syms-lto) \ $(PLATFORM_LIBS) \ -Wl,--no-whole-archive \ -Wl,-Map,u-boot.map; \ $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) else quiet_cmd_u-boot__ ?= LD $@ cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ -T u-boot.lds $(u-boot-init) \ --whole-archive \ $(u-boot-main) \ --no-whole-archive \ $(PLATFORM_LIBS) -Map u-boot.map; \ $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) endif quiet_cmd_smap = GEN common/system_map.o cmd_smap = \ smap=`$(call SYSTEM_MAP,u-boot) | \ awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ -c $(srctree)/common/system_map.c -o common/system_map.o u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE +$(call if_changed,u-boot__) ifeq ($(CONFIG_KALLSYMS),y) $(call cmd,smap) $(call cmd,u-boot__) common/system_map.o endif ifeq ($(CONFIG_RISCV),y) @tools/prelink-riscv $@ 0 endif quiet_cmd_sym ?= SYM $@ cmd_sym ?= $(OBJDUMP) -t $< > $@ u-boot.sym: u-boot FORCE $(call if_changed,sym) # Environment processing # --------------------------------------------------------------------------- # Directory where we expect the .env file, if it exists ENV_DIR := $(srctree)/board/$(BOARDDIR) # Basename of .env file, stripping quotes ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%) # Filename of .env file ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env # Default filename, if CONFIG_ENV_SOURCE_FILE is empty ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env # Select between the CONFIG_ENV_SOURCE_FILE and the default one ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD))) # Run the environment text file through the preprocessor, but only if it is # non-empty, to save time and possible build errors if something is wonky with # the board. # If there is no ENV_FILE, produce an empty output file, to prevent a previous # build's file being used in the case of in-tree builds. quiet_cmd_gen_envp = ENVP $@ cmd_gen_envp = \ if [ -s "$(ENV_FILE)" ]; then \ $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \ -D__UBOOT_CONFIG__ \ -I . -I include -I $(srctree)/include \ -include linux/kconfig.h -include include/config.h \ -I$(srctree)/arch/$(ARCH)/include \ $< -o $@; \ else \ rm -f $@; \ touch $@ ; \ fi include/generated/env.in: include/generated/env.txt FORCE $(call cmd,gen_envp) # Regenerate the environment if it changes # We use 'wildcard' since the file is not required to exist (at present), in # which case we don't want this dependency, but instead should create an empty # file # This rule is useful since it shows the source file for the environment quiet_cmd_envc = ENVC $@ cmd_envc = \ if [ -f "$<" ]; then \ cat $< > $@; \ elif [ -n "$(ENV_SOURCE_FILE)" ]; then \ echo "Missing file $(ENV_FILE_CFG)"; \ else \ touch $@ ; \ fi include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE $(call cmd,envc) # Write out the resulting environment, converted to a C string quiet_cmd_gen_envt = ENVT $@ cmd_gen_envt = \ awk -f $(srctree)/scripts/env2string.awk $< >$@ $(env_h): include/generated/env.in $(call cmd,gen_envt) # --------------------------------------------------------------------------- # The actual objects are generated when descending, # make sure no implicit rule kicks in $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; # Handle descending into subdirectories listed in $(u-boot-dirs) # Preset locale variables to speed up the build process. Limit locale # tweaks to this spot to avoid wrong language settings when running # make menuconfig etc. # Error messages still appears in the original language PHONY += $(u-boot-dirs) $(u-boot-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ tools: prepare # The "tools" are needed early $(filter-out tools, $(u-boot-dirs)): tools # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC # is "yes"), so compile examples after U-Boot is compiled. examples: $(filter-out examples, $(u-boot-dirs)) define filechk_uboot.release echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" endef # Store (new) UBOOTRELEASE string in include/config/uboot.release include/config/uboot.release: include/config/auto.conf FORCE $(call filechk,uboot.release) # Things we need to do before we recursively start building the kernel # or the modules are listed in "prepare". # A multi level approach is used. prepareN is processed before prepareN-1. # archprepare is used in arch Makefiles and when processed asm symlink, # version.h and scripts_basic is processed / created. # Listed in dependency order PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 # prepare3 is used to check if we are building in a separate output directory, # and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) prepare3: include/config/uboot.release ifneq ($(KBUILD_SRC),) @$(kecho) ' Using $(srctree) as source for U-Boot' $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ echo >&2 " in the '$(srctree)' directory.";\ /bin/false; \ fi; endif # prepare2 creates a makefile if using a separate output directory prepare2: prepare3 outputmakefile cfg prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \ include/config/auto.conf ifeq ($(wildcard $(LDSCRIPT)),) @echo >&2 " Could not find linker script." @/bin/false endif ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) prepare1: $(defaultenv_h) envtools: $(defaultenv_h) endif archprepare: prepare1 scripts_basic prepare0: archprepare FORCE $(Q)$(MAKE) $(build)=. # All the preparing.. prepare: prepare0 # Generate some files # --------------------------------------------------------------------------- # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers define filechk_version.h (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ echo \#define U_BOOT_VERSION_NUM $(VERSION); \ echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ sed -e "s/^0*//"); \ echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) endef # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. # The BSD date on the other hand behaves different and would produce errors # with the misused '-d' switch. Respect that and search a working date with # well known pre- and suffixes for the GNU variant of date. define filechk_timestamp.h (if test -n "$${SOURCE_DATE_EPOCH}"; then \ SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ DATE=""; \ for date in gdate date.gnu date; do \ $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ done; \ if test -n "$${DATE}"; then \ LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ else \ return 42; \ fi; \ else \ LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ fi) endef define filechk_defaultenv.h ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ tr '\n' '\0' | \ sed -e 's/\\\x0\s*//g' | \ xxd -i ; ) endef define filechk_dt.h (if test -n "$${DEVICE_TREE}"; then \ echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ else \ echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ fi) endef $(version_h): include/config/uboot.release FORCE $(call filechk,version.h) $(timestamp_h): $(srctree)/Makefile FORCE $(call filechk,timestamp.h) $(dt_h): $(srctree)/Makefile FORCE $(call filechk,dt.h) $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE $(call filechk,defaultenv.h) # --------------------------------------------------------------------------- # Devicetree files ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) dtstree := arch/$(SRCARCH)/boot/dts endif ifneq ($(dtstree),) %.dtb: prepare3 scripts_dtc $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ PHONY += dtbs dtbs_install dtbs: prepare3 scripts_dtc $(Q)$(MAKE) $(build)=$(dtstree) dtbs_install: $(Q)$(MAKE) $(dtbinst)=$(dtstree) ifdef CONFIG_OF_EARLY_FLATTREE all: dtbs endif endif # Check dtc and pylibfdt, if DTC is provided, else build them PHONY += scripts_dtc scripts_dtc: scripts_basic $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ $(MAKE) $(build)=scripts/dtc; \ else \ if ! $(DTC) -v >/dev/null; then \ echo '*** Failed to check dtc version: $(DTC)'; \ false; \ else \ if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ false; \ else \ if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ false; \ fi; \ fi; \ fi; \ fi; \ fi # --------------------------------------------------------------------------- quiet_cmd_cpp_lds = LDS $@ cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< u-boot.lds: $(LDSCRIPT) prepare FORCE $(call if_changed_dep,cpp_lds) spl/u-boot-spl.bin: spl/u-boot-spl @: $(SPL_SIZE_CHECK) spl/u-boot-spl-dtb.bin: spl/u-boot-spl @: spl/u-boot-spl-dtb.hex: spl/u-boot-spl @: spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb) $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all spl/sunxi-spl.bin: spl/u-boot-spl @: spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin @: spl/u-boot-spl.sfp: spl/u-boot-spl @: spl/boot.bin: spl/u-boot-spl @: tpl/u-boot-tpl.bin: tpl/u-boot-tpl @: $(TPL_SIZE_CHECK) tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all vpl/u-boot-vpl.bin: vpl/u-boot-vpl @: $(VPL_SIZE_CHECK) vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.spl all TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) FIND := find FINDFLAGS := -L tags ctags: ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ -name '*.[chS]' -print` ln -s ctags tags etags: etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ -name '*.[chS]' -print` cscope: $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ cscope.files @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ grep -xvf - cscope.files > cscope.files.no-symlinks; \ mv cscope.files.no-symlinks cscope.files cscope -b -q -k SYSTEM_MAP = \ $(NM) $1 | \ grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ LC_ALL=C sort System.map: u-boot @$(call SYSTEM_MAP,$<) > $@ ######################################################################### # ARM relocations should all be R_ARM_RELATIVE (32-bit) or # R_AARCH64_RELATIVE (64-bit). checkarmreloc: u-boot @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ grep R_A | sort -u`"; \ if test "$$RELOC" != "R_ARM_RELATIVE" -a \ "$$RELOC" != "R_AARCH64_RELATIVE"; then \ echo "$< contains unexpected relocations: $$RELOC"; \ false; \ fi tools/version.h: include/version.h $(Q)mkdir -p $(dir $@) $(call if_changed,copy) envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h $(Q)$(MAKE) $(build)=tools/env tools-only: export TOOLS_ONLY=y tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h $(Q)$(MAKE) $(build)=tools tools-all: export HOST_TOOLS_ALL=y tools-all: envtools tools ; cross_tools: export CROSS_BUILD_TOOLS=y cross_tools: tools ; .PHONY : CHANGELOG CHANGELOG: git log --no-merges U-Boot-1_1_5.. | \ unexpand -a | sed -e 's/\s\s*$$//' > $@ ######################################################################### ### # Cleaning is done on three levels. # make clean Delete most generated files # Leave enough to build external modules # make mrproper Delete the current configuration, and all generated files # make distclean Remove editor backup files, patch leftover files and the like # Directories & files removed with 'make clean' CLEAN_DIRS += $(MODVERDIR) \ $(foreach d, spl tpl, $(patsubst %,$d/%, \ $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ include/generated/env.* drivers/video/u_boot_logo.S \ tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \ u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \ mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \ itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \ mkimage.rom.mkimage rom.map simple-bin.map simple-bin-spi.map \ idbloader-spi.img # Directories & files removed with 'make mrproper' MRPROPER_DIRS += include/config include/generated spl tpl \ .tmp_objdiff doc/output include/asm # Remove include/asm symlink created by U-Boot before v2014.01 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ drivers/video/fonts/*.S include/asm # clean - Delete most, but leave enough to build external modules # clean: rm-dirs := $(CLEAN_DIRS) clean: rm-files := $(CLEAN_FILES) clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) clean-dirs := $(addprefix _clean_, $(clean-dirs)) PHONY += $(clean-dirs) clean archclean $(clean-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) clean: $(clean-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ -o -name '*.lex.c' -o -name '*.tab.[ch]' \ -o -name '*.asn1.[ch]' \ -o -name '*.symtypes' -o -name 'modules.order' \ -o -name modules.builtin -o -name '.tmp_*.o.*' \ -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \ -o -name 'dsdt_generated.c' \ -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ -type f -print | xargs rm -f # mrproper - Delete all generated files, including .config # mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) mrproper-dirs := $(addprefix _mrproper_,scripts) PHONY += $(mrproper-dirs) mrproper archmrproper $(mrproper-dirs): $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) mrproper: clean $(mrproper-dirs) $(call cmd,rmdirs) $(call cmd,rmfiles) @rm -f arch/*/include/asm/arch # distclean # PHONY += distclean distclean: mrproper @find $(srctree) $(RCS_FIND_IGNORE) \ \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ -o -name '.*.rej' -o -name '*%' -o -name 'core' \ -o -name '*.pyc' \) \ -type f -print | xargs rm -f @rm -f boards.cfg CHANGELOG # See doc/develop/python_cq.rst PHONY += pylint pylint_err PYLINT_BASE := scripts/pylint.base PYLINT_CUR := pylint.cur PYLINT_DIFF := pylint.diff pylint: $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)" $(Q)mkdir -p pylint.out $(Q)rm -f pylint.out/out* $(Q)find tools test -name "*.py" \ | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \ sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _ $(Q)rm -f $(PYLINT_CUR) $(Q)( cd pylint.out; for f in *; do \ sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \ done ) | sort > $(PYLINT_CUR) $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \ cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \ comm -3 $$base $$cur > $(PYLINT_DIFF); \ if [ -s $(PYLINT_DIFF) ]; then \ echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \ echo; \ echo "Added files:"; \ comm -13 $$base $$cur; \ echo; \ echo "Removed files:"; \ comm -23 $$base $$cur; \ false; \ else \ rm $$base $$cur $(PYLINT_DIFF); \ fi $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \ if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \ echo "$$base_file: Score was $$base_val, now $$cur_val"; \ bad=true; fi; \ done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \ if $$bad; then \ echo "Some files have regressed, please fix"; \ false; \ else \ echo "No pylint regressions"; \ fi # Check for errors only pylint_err: $(Q)pylint -E -j 0 --ignore-imports=yes \ $(shell find tools test -name "*.py") backup: F=`basename $(srctree)` ; cd .. ; \ gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F help: @echo 'Cleaning targets:' @echo ' clean - Remove most generated files but keep the config' @echo ' mrproper - Remove all generated files + config + various backup files' @echo ' distclean - mrproper + remove editor backup and patch files' @echo '' @echo 'Configuration targets:' @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help @echo '' @echo 'Test targets:' @echo '' @echo ' check - Run all automated tests that use sandbox' @echo ' pcheck - Run quick automated tests in parallel' @echo ' qcheck - Run quick automated tests that use sandbox' @echo ' tcheck - Run quick automated tests on tools' @echo ' pylint - Run pylint on all Python files' @echo '' @echo 'Other generic targets:' @echo ' all - Build all necessary images depending on configuration' @echo ' tests - Build U-Boot for sandbox and run tests' @echo '* u-boot - Build the bare u-boot' @echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[oisS] - Build specified target only' @echo ' dir/file.lst - Build specified mixed source/assembly target only' @echo ' (requires a recent binutils and recent build (System.map))' @echo ' tags/ctags - Generate ctags file for editors' @echo ' etags - Generate etags file for editors' @echo ' cscope - Generate cscope index' @echo ' ubootrelease - Output the release version string (use with make -s)' @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' @echo " cfg - Don't build, just create the .cfg files" @echo " envtools - Build only the target-side environment tools" @echo '' @echo 'Static analysers' @echo ' checkstack - Generate a list of stack hogs' @echo ' coccicheck - Execute static code analysis with Coccinelle' @echo '' @echo 'Documentation targets:' @$(MAKE) -f $(srctree)/doc/Makefile dochelp @echo '' @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' @echo ' make V=2 [targets] 2 => give reason for rebuild of target' @echo ' make O=dir [targets] Locate all output files in "dir", including .config' @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' @echo ' make C=2 [targets] Force check of all c source with $$CHECK' @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' @echo ' 1: warnings which may be relevant and do not occur too often' @echo ' 2: warnings which occur quite often but may still be relevant' @echo ' 3: more obscure warnings, can most likely be ignored' @echo ' Multiple levels can be combined with W=12 or W=123' @echo '' @echo 'Execute "make" or "make all" to build all targets marked with [*] ' @echo 'For further info see the ./README file' tests check: $(srctree)/test/run pcheck: $(srctree)/test/run parallel qcheck: $(srctree)/test/run quick tcheck: $(srctree)/test/run tools # Documentation targets # --------------------------------------------------------------------------- DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ linkcheckdocs dochelp refcheckdocs texinfodocs infodocs PHONY += $(DOC_TARGETS) $(DOC_TARGETS): scripts_basic FORCE $(Q)$(MAKE) $(build)=doc $@ PHONY += checkstack ubootrelease ubootversion checkstack: $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ $(PERL) $(src)/scripts/checkstack.pl $(ARCH) ubootrelease: @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" ubootversion: @echo $(UBOOTVERSION) # Single targets # --------------------------------------------------------------------------- # Single targets are compatible with: # - build with mixed source and output # - build with separate output dir 'make O=...' # - external modules # # target-dir => where to store outputfile # build-dir => directory in kernel source tree to use ifeq ($(KBUILD_EXTMOD),) build-dir = $(patsubst %/,%,$(dir $@)) target-dir = $(dir $@) else zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) endif %.s: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.i: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.o: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.lst: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.s: %.S prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.o: %.S prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) %.symtypes: %.c prepare scripts FORCE $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) # Modules /: prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) %/: prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) %.ko: prepare scripts FORCE $(cmd_crmodverdir) $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ $(build)=$(build-dir) $(@:.ko=.o) $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost quiet_cmd_genenv = GENENV $@ cmd_genenv = \ $(objtree)/tools/printinitialenv | \ sed -e '/^\s*$$/d' | \ sort --field-separator== -k1,1 --stable -o $@ u-boot-initial-env: $(env_h) FORCE $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv $(call if_changed,genenv) # Consistency checks # --------------------------------------------------------------------------- PHONY += coccicheck coccicheck: $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ # FIXME Should go into a make.lib or something # =========================================================================== quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) cmd_rmdirs = rm -rf $(rm-dirs) quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) cmd_rmfiles = rm -f $(rm-files) # read all saved command lines cmd_files := $(wildcard .*.cmd) ifneq ($(cmd_files),) $(cmd_files): ; # Do not try to update included dependency files include $(cmd_files) endif endif #ifeq ($(config-targets),1) endif #ifeq ($(mixed-targets),1) endif # skip-makefile PHONY += FORCE FORCE: # Declare the contents of the PHONY variable as phony. We keep that # information in a variable so we can use it in if_changed and friends. .PHONY: $(PHONY)