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Marek Vasut 5602330df0 ARM: rmobile: Add recovery SPL for R-Car Gen3 
Build an SPL which can be started via SCIF download mode on R-Car Gen3
and allows loading and executing U-Boot uImage with the next stage code.
This is also useful for starting e.g. ATF BL2, which inits the hardware
and returns to the U-Boot SPL, which can then load e.g. U-Boot proper.

The H3, M3-W, M3-N SoCs have plenty of SRAM for storing the U-Boot SPL
while the payload, e.g. ATF BL2, executes, so there is no problem here.

However, E3 and D3 have much less SRAM, hence the loader uses a trick
where it copies itself beyond the area used by BL2 and executes from
there. That area is 32kiB large and not enough to hold U-Boot SPL, BSS,
stack and malloc area, so the later two are placed at +0x4000 offset
from start of SRAM, another area not used by ATF BL2. To make things
even more complicated, the SCIF loader cannot load to the upper 32kiB
of the SRAM directly, hence the copying approach.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-05-21 22:15:31 +02:00

2040 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0+
VERSION = 2019
PATCHLEVEL = 07
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.
# o Do not use make's built-in rules and variables
# (this increases performance and avoids hard-to-debug behaviour);
# o Look for make include files relative to root of kernel src
MAKEFLAGS += -rR --include-dir=$(CURDIR)
# 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)"))
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 ($(skip-makefile),)
# Do not print "Entering directory ...",
# but we want to display it when entering to the output directory
# so that IDEs/editors are able to understand relative filenames.
MAKEFLAGS += --no-print-directory
# Call a source code checker (by default, "sparse") as part of the
# C compilation.
#
# Use 'make C=1' to enable checking of only re-compiled files.
# Use 'make C=2' to enable checking of *all* source files, regardless
# of whether they are re-compiled or not.
#
# See the file "Documentation/sparse.txt" for more details, including
# where to get the "sparse" utility.
ifeq ("$(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)
HOSTCC = cc
HOSTCXX = c++
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
$(if $(CONFIG_TOOLS_DEBUG),-g)
HOSTCXXFLAGS = -O2
# With the move to GCC 6, we have implicitly upgraded our language
# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
# Some Linux distributions (including RHEL7, SLES13, Debian 8) still
# have older compilers as their default, so we make it explicit for
# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
CSTD_FLAG := -std=gnu11
ifeq ($(HOSTOS),linux)
HOSTCFLAGS += $(CSTD_FLAG)
endif
ifeq ($(HOSTOS),cygwin)
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")
HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
# since Lion (10.7) ASLR is on by default, but we use linker generated lists
# in some host tools which is a problem then ... so disable ASLR for these
# tools
HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
# macOS Mojave (10.14.X)
# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
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
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
DTC ?= $(objtree)/scripts/dtc/dtc
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__
# 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 HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
export KBUILD_CFLAGS KBUILD_AFLAGS
# 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) $(objtree) $(VERSION) $(PATCHLEVEL)
endif
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
# It is allowed to specify more targets when calling make, including
# mixing *config targets and build targets.
# For example 'make oldconfig all'.
# Detect when mixed targets is specified, and make a second invocation
# of make so .config is not included in this case either (for *config).
version_h := include/generated/version_autogenerated.h
timestamp_h := include/generated/timestamp_autogenerated.h
defaultenv_h := include/generated/defaultenv_autogenerated.h
no-dot-config-targets := clean clobber mrproper distclean \
help %docs check% coccicheck \
ubootversion backup tests check qcheck
config-targets := 0
mixed-targets := 0
dot-config := 1
ifneq ($(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 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
KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
# 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 += $(call cc-option,-Wno-format-nonliteral)
ifeq ($(cc-name),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)
KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
endif
# turn jbsr into jsr for m68k
ifeq ($(ARCH),m68k)
ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
KBUILD_AFLAGS += -Wa,-gstabs,-S
endif
endif
# 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)
# 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 $(CONFIG_HAS_THUMB2),, \
-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
-I$(srctree)/arch/$(ARCH)/include \
-include $(srctree)/include/linux/kconfig.h
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS += $(NOSTDINC_FLAGS)
# 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-y += lib/
libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
libs-$(CONFIG_OF_EMBED) += dts/
libs-y += fs/
libs-y += net/
libs-y += disk/
libs-y += drivers/
libs-y += drivers/dma/
libs-y += drivers/gpio/
libs-y += drivers/i2c/
libs-y += drivers/mtd/
libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
libs-y += drivers/mtd/onenand/
libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
libs-y += drivers/mtd/spi/
libs-y += drivers/net/
libs-y += drivers/net/phy/
libs-y += drivers/power/ \
drivers/power/domain/ \
drivers/power/fuel_gauge/ \
drivers/power/mfd/ \
drivers/power/pmic/ \
drivers/power/battery/ \
drivers/power/regulator/
libs-y += drivers/spi/
libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
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/serial/
libs-y += drivers/usb/dwc3/
libs-y += drivers/usb/common/
libs-y += drivers/usb/emul/
libs-y += drivers/usb/eth/
libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
libs-y += drivers/usb/host/
libs-y += drivers/usb/musb/
libs-y += drivers/usb/musb-new/
libs-y += drivers/usb/phy/
libs-y += drivers/usb/ulpi/
libs-y += cmd/
libs-y += common/
libs-y += env/
libs-$(CONFIG_API) += api/
libs-$(CONFIG_HAS_POST) += post/
libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
libs-$(CONFIG_UT_ENV) += test/env/
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 = \
@actual=`wc -c $@ | awk '{print $$1}'`; \
limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
if test $$actual -gt $$limit; then \
echo "$@ exceeds file size limit:" >&2 ; \
echo " limit: $$limit bytes" >&2 ; \
echo " actual: $$actual bytes" >&2 ; \
echo " excess: $$((actual - limit)) bytes" >&2; \
exit 1; \
fi
else
BOARD_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
DO_STATIC_RELA = \
start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
tools/relocate-rela $(2) $(3) $$start $$end
else
DO_STATIC_RELA =
endif
# Always append ALL so that arch config.mk's can add custom ones
ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
ifeq ($(CONFIG_SPL_FSL_PBL),y)
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
else
ifneq ($(CONFIG_SECURE_BOOT), y)
# For Secure Boot The Image needs to be signed and Header must also
# be included. So The image has to be built explicitly
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
endif
endif
ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
else
ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
else
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
endif
endif
ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
ifeq ($(CONFIG_SPL_FRAMEWORK),y)
ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
endif
ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
ifneq ($(CONFIG_SPL_TARGET),)
ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
endif
ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
endif
# Build a combined spl + u-boot image for sunxi
ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
ALL-y += u-boot-sunxi-with-spl.bin
endif
# enable combined SPL/u-boot/dtb rules for tegra
ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
endif
ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
# Add optional build target if defined in board/cpu/soc headers
ifneq ($(CONFIG_BUILD_TARGET),)
ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
endif
ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
ALL-y += init_sp_bss_offset_check
endif
ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
ALL-y += u-boot-with-dtb.bin
endif
LDFLAGS_u-boot += $(LDFLAGS_FINAL)
# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif
# 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 $@
cfg: u-boot.cfg
quiet_cmd_cfgcheck = CFGCHK $2
cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
$(srctree)/scripts/config_whitelist.txt $(srctree)
all: $(ALL-y)
ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
@echo >&2 "(possibly in a subsequent patch in your series)"
@echo >&2 "before sending patches to the mailing list."
@echo >&2 "===================================================="
endif
ifeq ($(CONFIG_MMC),y)
ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
@echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifeq ($(CONFIG_USB),y)
ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_USB. Please update"
@echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifeq ($(CONFIG_MVSATA_IDE),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
@echo >&2 "ported to driver-model (DM) yet. Please update the storage"
@echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
@echo >&2 "release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
ifeq ($(CONFIG_LIBATA),y)
ifneq ($(CONFIG_AHCI),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
@echo >&2 "enabled. Please update the storage controller driver to use"
@echo >&2 "CONFIG_AHCI before the v2019.07 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifeq ($(CONFIG_PCI),y)
ifneq ($(CONFIG_DM_PCI),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_PCI Please update"
@echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
ifneq ($(CONFIG_DM_VIDEO),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
@echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifeq ($(CONFIG_OF_EMBED),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
ifeq ($(CONFIG_SPI),y)
ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
@echo >&2 "the board before v2019.04 for no dm conversion"
@echo >&2 "and v2019.07 for partially dm converted drivers."
@echo >&2 "Failure to update can lead to driver/board removal"
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifeq ($(CONFIG_SPI_FLASH),y)
ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
@echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
ifneq ($(CONFIG_WDT),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
@echo >&2 "Please update the board to use CONFIG_WDT before the"
@echo >&2 "v2019.10 release."
@echo >&2 "Failure to update by the deadline may result in board removal."
@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
@echo >&2 "===================================================="
endif
endif
@# 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
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
$(call if_changed,copy)
else ifeq ($(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
%.imx: %.bin
$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
%.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)
OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
spl/u-boot-spl.hex: spl/u-boot-spl FORCE
$(call if_changed,objcopy)
binary_size_check: u-boot-nodtb.bin FORCE
@file_size=$(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
ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
ifneq ($(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
u-boot-nodtb.bin: u-boot FORCE
$(call if_changed,objcopy)
$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
$(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
quiet_cmd_binman = BINMAN $@
cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
-I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
$(if $(BINMAN_DEBUG),-D) $(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 := 0
endif
# Boards with more complex image requirments can provide an .its source file
# or a generator script
ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
else
ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
U_BOOT_ITS := u-boot.its
ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
U_BOOT_ITS_DEPS += u-boot-nodtb.bin
endif
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) \
-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_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
CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
endif
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
-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
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 dts/dt.dtb,u-boot.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
u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
$(call if_changed,mkfitimage)
$(BOARD_SIZE_CHECK)
u-boot-spl.kwb: u-boot.img 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_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)
CLEAN_FILES += lpc32xx-*
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)
flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
endif
u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin 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
# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
# Both images are created using mkimage (crc etc), so that the ROM
# bootloader can check its integrity. Padding needs to be done to the
# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
# The resulting image containing both U-Boot images is called u-boot.spr
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)
OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
--gap-fill=0xff
u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
$(call if_changed,pad_cat)
ifneq ($(CONFIG_ARCH_SOCFPGA),)
quiet_cmd_socboot = SOCBOOT $@
cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
u-boot.img > $@ || rm -f $@
u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
$(call if_changed,socboot)
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
# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
# the middle. This is handled by binman based on an image description in the
# board's device tree.
ifneq ($(CONFIG_X86_RESET_VECTOR),)
rom: u-boot.rom FORCE
refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
$(call if_changed,copy)
quiet_cmd_ldr = LD $@
cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
$(filter-out FORCE,$^) -o $@
u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
$(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
$(call if_changed,binman)
OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
u-boot-x86-16bit.bin: u-boot FORCE
$(call if_changed,objcopy)
endif
ifneq ($(CONFIG_ARCH_SUNXI),)
ifeq ($(CONFIG_ARM64),)
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
$(call if_changed,binman)
else
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
$(call if_changed,cat)
endif
endif
ifneq ($(CONFIG_TEGRA),)
ifneq ($(CONFIG_BINMAN),)
# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
%-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
spl/%-spl %.bin FORCE
$(call if_changed,binman)
else
OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
$(call if_changed,pad_cat)
OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
$(call if_changed,pad_cat)
u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
$(call if_changed,copy)
endif # binman
endif
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)
# Create a new ELF from a raw binary file.
ifndef PLATFORM_ELFENTRY
PLATFORM_ELFENTRY = "_start"
endif
quiet_cmd_u-boot-elf ?= LD $@
cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
-Ttext=$(CONFIG_SYS_TEXT_BASE)
u-boot.elf: u-boot.bin
$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
$(call if_changed,u-boot-elf)
# 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.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
$(call if_changed,binman)
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
ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
# Rule to link u-boot
# May be overridden by arch/$(ARCH)/config.mk
quiet_cmd_u-boot__ ?= LD $@
cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
-T u-boot.lds $(u-boot-init) \
--start-group $(u-boot-main) --end-group \
$(PLATFORM_LIBS) -Map u-boot.map; \
$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
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="\"$${smap}\"" \
-c $(srctree)/common/system_map.c -o common/system_map.o
u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
+$(call if_changed,u-boot__)
ifeq ($(CONFIG_KALLSYMS),y)
$(call cmd,smap)
$(call cmd,u-boot__) common/system_map.o
endif
ifeq ($(CONFIG_RISCV),y)
@tools/prelink-riscv $@ 0
endif
quiet_cmd_sym ?= SYM $@
cmd_sym ?= $(OBJDUMP) -t $< > $@
u-boot.sym: u-boot FORCE
$(call if_changed,sym)
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
# Handle descending into subdirectories listed in $(vmlinux-dirs)
# Preset locale variables to speed up the build process. Limit locale
# tweaks to this spot to avoid wrong language settings when running
# make menuconfig etc.
# Error messages still appears in the original language
PHONY += $(u-boot-dirs)
$(u-boot-dirs): prepare scripts
$(Q)$(MAKE) $(build)=$@
tools: prepare
# The "tools" are needed early
$(filter-out tools, $(u-boot-dirs)): tools
# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
# is "yes"), so compile examples after U-Boot is compiled.
examples: $(filter-out examples, $(u-boot-dirs))
define filechk_uboot.release
echo "$(UBOOTVERSION)$$($(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) $(timestamp_h) \
include/config/auto.conf
ifeq ($(wildcard $(LDSCRIPT)),)
@echo >&2 " Could not find linker script."
@/bin/false
endif
ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
prepare1: $(defaultenv_h)
endif
archprepare: prepare1 scripts_basic
prepare0: archprepare FORCE
$(Q)$(MAKE) $(build)=.
# All the preparing..
prepare: prepare0
# Generate some files
# ---------------------------------------------------------------------------
define filechk_version.h
(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
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_DMI_DATE "%m/%d/%Y"'; \
LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
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_DMI_DATE "%m/%d/%Y"'; \
LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
fi)
endef
define filechk_defaultenv.h
(grep -v '^#' | \
grep -v '^$$' | \
tr '\n' '\0' | \
sed -e 's/\\\x0/\n/' | \
xxd -i ; echo ", 0x00" ; )
endef
$(version_h): include/config/uboot.release FORCE
$(call filechk,version.h)
$(timestamp_h): $(srctree)/Makefile FORCE
$(call filechk,timestamp.h)
$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
$(call filechk,defaultenv.h)
# ---------------------------------------------------------------------------
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/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
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
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: $$RELOC"; \
false; \
fi
envtools: scripts_basic $(version_h) $(timestamp_h)
$(Q)$(MAKE) $(build)=tools/env
tools-only: scripts_basic $(version_h) $(timestamp_h)
$(Q)$(MAKE) $(build)=tools
tools-all: export HOST_TOOLS_ALL=y
tools-all: envtools tools ;
cross_tools: export CROSS_BUILD_TOOLS=y
cross_tools: tools ;
.PHONY : CHANGELOG
CHANGELOG:
git log --no-merges U-Boot-1_1_5.. | \
unexpand -a | sed -e 's/\s\s*$$//' > $@
#########################################################################
###
# 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 \
boot* u-boot* MLO* SPL System.map fit-dtb.blob*
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config include/generated spl tpl \
.tmp_objdiff
MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
drivers/video/fonts/*.S
# 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) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '*.ko.*' -o -name '*.su' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.lex.c' -o -name '*.tab.[ch]' \
-o -name '*.symtypes' -o -name 'modules.order' \
-o -name modules.builtin -o -name '.tmp_*.o.*' \
-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
-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 $(srctree)/scripts/kconfig/Makefile help
@echo ''
@echo 'Test targets:'
@echo ''
@echo ' check - Run all automated tests that use sandbox'
@echo ' qcheck - Run quick automated tests that use sandbox'
@echo ''
@echo 'Other generic targets:'
@echo ' all - Build all necessary images depending on configuration'
@echo ' tests - Build U-Boot for sandbox and run tests'
@echo '* u-boot - Build the bare u-boot'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[oisS] - Build specified target only'
@echo ' dir/file.lst - Build specified mixed source/assembly target only'
@echo ' (requires a recent binutils and recent build (System.map))'
@echo ' tags/ctags - Generate ctags file for editors'
@echo ' etags - Generate etags file for editors'
@echo ' cscope - Generate cscope index'
@echo ' ubootrelease - Output the release version string (use with make -s)'
@echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
@echo " cfg - Don't build, just create the .cfg files"
@echo " envtools - Build only the target-side environment tools"
@echo ''
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' coccicheck - Execute static code analysis with Coccinelle'
@echo ''
@echo 'Documentation targets:'
@$(MAKE) -f $(srctree)/Documentation/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
# Documentation targets
# ---------------------------------------------------------------------------
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
linkcheckdocs dochelp refcheckdocs
PHONY += $(DOC_TARGETS)
$(DOC_TARGETS): scripts_basic FORCE
$(Q)$(MAKE) $(build)=Documentation $@
endif #ifeq ($(config-targets),1)
endif #ifeq ($(mixed-targets),1)
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
targets := $(wildcard $(sort $(targets)))
cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
ifneq ($(cmd_files),)
$(cmd_files): ; # Do not try to update included dependency files
include $(cmd_files)
endif
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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