# SPDX-License-Identifier: GPL-2.0+
VERSION = 2021
-PATCHLEVEL = 07
+PATCHLEVEL = 10
SUBLEVEL =
-EXTRAVERSION = -rc4
+EXTRAVERSION =
NAME =
# *DOCUMENTATION*
# 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)
+# 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
$(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, $(MAKECMDGOALS)) _all: sub-make
# have older compilers as their default, so we make it explicit for
# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
CSTD_FLAG := -std=gnu11
-ifeq ($(HOSTOS),linux)
KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
-endif
ifeq ($(HOSTOS),cygwin)
KBUILD_HOSTCFLAGS += -ansi
$(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 ;)
+ $(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)
+# macOS Mojave (10.14.X)
# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
endif
PYTHON ?= python
PYTHON2 = python2
PYTHON3 ?= python3
-DTC ?= $(objtree)/scripts/dtc/dtc
+
+# 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 ?= $(DTC_INTREE)
+DTC_MIN_VERSION := 010406
+
CHECK = sparse
CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
outputmakefile:
ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(srctree) source
- $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
- $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
endif
# To make sure we do not include .config for any of the *config targets
# Carefully list dependencies so we do not try to build scripts twice
# in parallel
PHONY += scripts
-scripts: scripts_basic include/config/auto.conf
+scripts: scripts_basic scripts_dtc include/config/auto.conf
$(Q)$(MAKE) $(build)=$(@)
ifeq ($(dot-config),1)
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)
KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
-ifeq ($(cc-name),clang)
+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)
# See modpost pattern 2
KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
-else
+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)
-endif
# Prohibit date/time macros, which would make the build non-deterministic
KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
-libs-y += lib/
+libs-$(CONFIG_API) += api/
libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
+libs-y += cmd/
+libs-y += common/
libs-$(CONFIG_OF_EMBED) += dts/
+libs-y += env/
+libs-y += lib/
libs-y += fs/
libs-y += net/
libs-y += disk/
libs-y += drivers/
-libs-y += drivers/dma/
-libs-y += drivers/gpio/
-libs-y += drivers/i2c/
-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_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
-libs-y += drivers/serial/
libs-y += drivers/usb/cdns3/
libs-y += drivers/usb/dwc3/
libs-y += drivers/usb/common/
libs-y += drivers/usb/musb-new/
libs-y += drivers/usb/phy/
libs-y += drivers/usb/ulpi/
-libs-y += cmd/
-libs-y += common/
-libs-y += env/
-libs-$(CONFIG_API) += api/
ifdef CONFIG_POST
libs-y += post/
endif
@echo >&2 "See doc/driver-model/migration.rst for more info."
@echo >&2 "===================================================="
endif
- $(call deprecated,CONFIG_DM_USB CONFIG_OF_CONTROL CONFIG_BLK,\
- USB,v2019.07,$(CONFIG_USB))
- $(call deprecated,CONFIG_DM_PCI,PCI,v2019.07,$(CONFIG_PCI))
- $(call deprecated,CONFIG_DM_VIDEO,video,v2019.07,\
- $(CONFIG_LCD)$(CONFIG_VIDEO))
- $(call deprecated,CONFIG_DM_SPI_FLASH,SPI flash,v2019.07,\
- $(CONFIG_SPI_FLASH))
$(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_I2C))
+ $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(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.
-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)
# Use 'make BINMAN_VERBOSE=3' to set vebosity level
default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
-# Tell binman whether we have a devicetree for SPL and TPL
-have_spl_dt := $(if $(CONFIG_SPL_OF_PLATDATA),,$(CONFIG_SPL_OF_CONTROL))
-have_tpl_dt := $(if $(CONFIG_TPL_OF_PLATDATA),,$(CONFIG_TPL_OF_CONTROL))
-
quiet_cmd_binman = BINMAN $@
cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
--toolpath $(objtree)/tools \
-a scp-path=$(SCP) \
-a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
-a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
- -a spl-dtb=$(have_spl_dt) -a tpl-dtb=$(have_tpl_dt) \
+ -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
+ -a tpl-dtb=$(CONFIG_SPL_OF_REAL) \
$(BINMAN_$(@F))
OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
else
ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
U_BOOT_ITS := u-boot.its
-ifeq ($(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
else
MKIMAGEFLAGS_u-boot.itb = -E
endif
+MKIMAGEFLAGS_u-boot.itb += -B 0x8
ifdef U_BOOT_ITS
u-boot.itb: u-boot-nodtb.bin \
$(BOARD_SIZE_CHECK)
endif
-u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
+u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
u-boot.sha1: u-boot.bin
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_gensplx4 = GENSPLX4 $@
cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
quiet_cmd_keep_syms_lto = KSL $@
cmd_keep_syms_lto = \
- NM=$(NM) $(srctree)/scripts/gen_ll_addressable_symbols.sh $^ >$@
+ $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
quiet_cmd_keep_syms_lto_cc = KSLCC $@
cmd_keep_syms_lto_cc = \
# May be overridden by arch/$(ARCH)/config.mk
ifdef CONFIG_LTO
quiet_cmd_u-boot__ ?= LTO $@
- cmd_u-boot__ ?= \
+ cmd_u-boot__ ?= \
$(CC) -nostdlib -nostartfiles \
$(LTO_FINAL_LDFLAGS) $(c_flags) \
$(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \
ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
prepare1: $(defaultenv_h)
+
+envtools: $(defaultenv_h)
endif
archprepare: prepare1 scripts_basic
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'; \
LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
else \
return 42; \
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'; \
LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
fi)
endef
$(call filechk,defaultenv.h)
# ---------------------------------------------------------------------------
+# Devicetree files
+
+ifneq ($(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 $@ $<
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config include/generated spl tpl \
- .tmp_objdiff doc/output
+ .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 \
$(DOC_TARGETS): scripts_basic FORCE
$(Q)$(MAKE) $(build)=doc $@
-endif #ifeq ($(config-targets),1)
-endif #ifeq ($(mixed-targets),1)
-
PHONY += checkstack ubootrelease ubootversion
checkstack:
# read all saved command lines
-cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
+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
projects / platform / kernel / u-boot.git / blobdiff