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u-boot/Makefile
Simon Glass 86b9c3e4e4 env: Allow U-Boot scripts to be placed in a .env file 
At present U-Boot environment variables, and thus scripts, are defined
by CONFIG_EXTRA_ENV_SETTINGS. It is painful to add large amounts of text
to this file and dealing with quoting and newlines is harder than it
should be. It would be better if we could just type the script into a
text file and have it included by U-Boot.

Add a feature that brings in a .env file associated with the board
config, if present. To use it, create a file in a board/<vendor>
directory, typically called <board>.env and controlled by the
CONFIG_ENV_SOURCE_FILE option.

The environment variables should be of the form "var=value". Values can
extend to multiple lines. See the README under 'Environment Variables:'
for more information and an example.

In many cases environment variables need access to the U-Boot CONFIG
variables to select different options. Enable this so that the environment
scripts can be as useful as the ones currently in the board config files.
This uses the C preprocessor, means that comments can be included in the
environment using /* ... */

Also support += to allow variables to be appended to. This is needed when
using the preprocessor.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Marek Behún <marek.behun@nic.cz>
2021-11-16 14:35:08 -05:00

2419 lines
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# SPDX-License-Identifier: GPL-2.0+
VERSION = 2022
PATCHLEVEL = 01
SUBLEVEL =
EXTRAVERSION = -rc2
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/^\s*\([^\/]*\/\)*\([^-]*\)-\S*/\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 $(MK_ARCH), "arm" "armv7" "armv7l"))
export HOST_ARCH=$(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 $(CONFIG_MODVERSIONS),1)
endif
# If we have "make <whatever> modules", compile modules
# in addition to whatever we do anyway.
# Just "make" or "make all" shall build modules as well
# U-Boot does not need modules
#ifneq ($(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 $(srctree)
endif
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
# It is allowed to specify more targets when calling make, including
# mixing *config targets and build targets.
# For example 'make oldconfig all'.
# Detect when mixed targets is specified, and make a second invocation
# of make so .config is not included in this case either (for *config).
version_h := include/generated/version_autogenerated.h
timestamp_h := include/generated/timestamp_autogenerated.h
defaultenv_h := include/generated/defaultenv_autogenerated.h
dt_h := include/generated/dt.h
env_h := include/generated/environment.h
no-dot-config-targets := clean clobber mrproper distclean \
help %docs check% coccicheck \
ubootversion backup tests check qcheck tcheck
config-targets := 0
mixed-targets := 0
dot-config := 1
ifneq ($(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
# 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 # $(dot-config)
#
# Xtensa linker script cannot be preprocessed with -ansi because of
# preprocessor operations on strings that don't make C identifiers.
#
ifeq ($(CONFIG_XTENSA),)
LDPPFLAGS += -ansi
endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os
else
KBUILD_CFLAGS += -O2
endif
LTO_CFLAGS :=
LTO_FINAL_LDFLAGS :=
export LTO_CFLAGS LTO_FINAL_LDFLAGS
ifdef CONFIG_LTO
ifeq ($(cc-name),clang)
LTO_CFLAGS += -flto
LTO_FINAL_LDFLAGS += -flto
AR = $(shell $(CC) -print-prog-name=llvm-ar)
NM = $(shell $(CC) -print-prog-name=llvm-nm)
else
NPROC := $(shell nproc 2>/dev/null || echo 1)
LTO_CFLAGS += -flto=$(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 += -g
# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
# option to the assembler.
KBUILD_AFLAGS += -g
# Report stack usage if supported
# ARC tools based on GCC 7.1 has an issue with stack usage
# with naked functions, see commit message for more details
ifndef CONFIG_ARC
ifeq ($(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_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-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
libs-y += drivers/usb/host/
libs-y += drivers/usb/mtu3/
libs-y += drivers/usb/musb/
libs-y += drivers/usb/musb-new/
libs-y += drivers/usb/phy/
libs-y += drivers/usb/ulpi/
ifdef CONFIG_POST
libs-y += post/
endif
libs-$(CONFIG_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 = @$(call size_check,$@,$$(tools/spl_size_limit))
else
SPL_SIZE_CHECK =
endif
ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
else
TPL_SIZE_CHECK =
endif
# Statically apply RELA-style relocations (currently arm64 only)
# This is useful for arm64 where static relocation needs to be performed on
# the raw binary, but certain simulators only accept an ELF file (but don't
# do the relocation).
ifneq ($(CONFIG_STATIC_RELA),)
# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
quiet_cmd_static_rela = RELOC $@
cmd_static_rela = \
start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \
end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \
tools/relocate-rela $(3) $(4) $$start $$end
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_OF_SEPARATE) += u-boot.dtb
INPUTS-$(CONFIG_BINMAN_STANDALONE_FDT) += 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_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
INPUTS-y += u-boot-with-dtb.bin
endif
ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
# On ARM64 this target is produced by binman so we don't need this dep
ifeq ($(CONFIG_ARM64),y)
ifeq ($(CONFIG_SPL),y)
# TODO: Get binman to generate this too
INPUTS-y += u-boot-rockchip.bin
endif
else
ifeq ($(CONFIG_SPL),y)
# Generate these inputs for binman which will create the output files
INPUTS-y += idbloader.img u-boot.img
endif
endif
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
LDFLAGS_u-boot += --build-id=none
ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_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_cfgcheck = CFGCHK $2
cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
$(srctree)/scripts/config_whitelist.txt $(srctree)
# 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 CONFIG_DM_... 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/driver-model/migration.rst for more info."; \
echo >&2 "===================================================="; \
fi; fi
endef
PHONY += inputs
inputs: $(INPUTS-y)
all: .binman_stamp inputs
ifeq ($(CONFIG_BINMAN),y)
$(call if_changed,binman)
endif
# Timestamp file to make sure that binman always runs
.binman_stamp: FORCE
@touch $@
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/README.fdt-control 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
ifneq ($(CONFIG_DM),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
@echo >&2 "compulsory starting with the v2020.01 release."
@echo >&2 "Failure to update may result in board removal."
@echo >&2 "See doc/driver-model/migration.rst for more info."
@echo >&2 "===================================================="
endif
$(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
$(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
$(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET))
$(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
@# Check that this build does not use CONFIG options that we do not
@# know about unless they are in Kconfig. All the existing CONFIG
@# options are whitelisted, so new ones should not be added.
$(call cmd,cfgcheck,u-boot.cfg)
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)
u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
$(call if_changed,cat)
else ifeq ($(CONFIG_OF_SEPARATE),y)
u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
$(call if_changed,cat)
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),-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_SYS_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) \
--toolpath $(objtree)/tools \
$(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
build -u -d u-boot.dtb -O . -m --allow-missing \
-I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
-I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
-a atf-bl31-path=${BL31} \
-a opensbi-path=${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) \
$(BINMAN_$(@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 CONFIG_SYS_UBOOT_START
CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
endif
# Boards with more complex image requirements can provide an .its source file
# or a generator script
# NOTE: Please do not use this. We are migrating away from Makefile rules to use
# binman instead.
ifneq ($(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
ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
U_BOOT_ITS_DEPS += u-boot
endif
$(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_SYS_TEXT_BASE) -e $(CONFIG_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_SYS_TEXT_BASE) -e $(CONFIG_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_SYS_TEXT_BASE) -e $(CONFIG_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_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
$(if $(KEYDIR),-k $(KEYDIR))
MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
UBOOT_BIN := u-boot-with-dtb.bin
else
UBOOT_BIN := u-boot.bin
endif
MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_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)$(CONFIG_SANDBOX)$(CONFIG_BINMAN_STANDALONE_FDT),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) \
$(U_BOOT_ITS) FORCE
$(call if_changed,mkfitimage)
$(BOARD_SIZE_CHECK)
endif
u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
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_ROCKCHIP),y)
# TPL + SPL
ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
$(call if_changed,mkimage)
idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
$(call if_changed,cat)
else
MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
idbloader.img: spl/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
endif
ifeq ($(CONFIG_ARM64),y)
OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
--pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
$(call if_changed,pad_cat)
endif # CONFIG_ARM64
endif # CONFIG_ARCH_ROCKCHIP
ifeq ($(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)
$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
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_SYS_TEXT_BASE)
u-boot.ubl: u-boot-with-spl.bin FORCE
$(call if_changed,mkimage)
MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/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)$(CONFIG_OF_SEPARATE),yy)
u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
$(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
$(call if_changed,binman)
ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
u-boot-br.bin: u-boot FORCE
$(call if_changed,objcopy)
endif
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
ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
UBOOT_BINLOAD := u-boot-with-dtb.bin
else
UBOOT_BINLOAD := u-boot.bin
endif
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 $@ \
-T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
-Ttext=$(CONFIG_SYS_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_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
-n "$(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
ifdef CONFIG_LTO
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
ifdef CONFIG_LTO
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
# Note: Linking efi-x86_app64 causes a segfault in the linker at present
# when using x86_64-linux-gnu-ld.bfd
# For now, disable --whole-archive which makes things link, although not
# correctly
quiet_cmd_u-boot__ ?= LD $@
cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
-T u-boot.lds $(u-boot-init) \
$(if $(CONFIG_EFI_APP_64BIT),,--whole-archive) \
$(u-boot-main) \
$(if $(CONFIG_EFI_APP_64BIT),,--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
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 $@; \
else \
echo -n >$@ ; \
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 $(ENV_FILE_CFG)"; \
else \
echo -n >$@ ; \
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 $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),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: tools prepare \
$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
$(TPL_SIZE_CHECK)
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 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
# 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) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.lex.c' -o -name '*.tab.[ch]' \
-o -name '*.asn1.[ch]' \
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
-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
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 $(srctree)/scripts/kconfig/Makefile help
@echo ''
@echo 'Test targets:'
@echo ''
@echo ' check - Run all automated tests that use sandbox'
@echo ' qcheck - Run quick automated tests that use sandbox'
@echo ' tcheck - Run quick automated tests on tools'
@echo ''
@echo 'Other generic targets:'
@echo ' all - Build all necessary images depending on configuration'
@echo ' tests - Build U-Boot for sandbox and run tests'
@echo '* u-boot - Build the bare u-boot'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[oisS] - Build specified target only'
@echo ' dir/file.lst - Build specified mixed source/assembly target only'
@echo ' (requires a recent binutils and recent build (System.map))'
@echo ' tags/ctags - Generate ctags file for editors'
@echo ' etags - Generate etags file for editors'
@echo ' cscope - Generate cscope index'
@echo ' ubootrelease - Output the release version string (use with make -s)'
@echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
@echo " cfg - Don't build, just create the .cfg files"
@echo " envtools - Build only the target-side environment tools"
@echo ''
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' coccicheck - Execute static code analysis with Coccinelle'
@echo ''
@echo 'Documentation targets:'
@$(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
qcheck:
$(srctree)/test/run quick
tcheck:
$(srctree)/test/run tools
# Documentation targets
# ---------------------------------------------------------------------------
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
linkcheckdocs dochelp refcheckdocs
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 = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
sed --in-place -e 's/\x00/\x0A/g' $@
u-boot-initial-env: u-boot.bin
$(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)
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