# SPDX-License-Identifier: GPL-2.0+
VERSION = 2021
-PATCHLEVEL = 04
+PATCHLEVEL = 07
SUBLEVEL =
-EXTRAVERSION = -rc4
+EXTRAVERSION =
NAME =
# *DOCUMENTATION*
# o Look for make include files relative to root of kernel src
MAKEFLAGS += -rR --include-dir=$(CURDIR)
-# Determine host architecture
+# Determine target architecture for the sandbox
include include/host_arch.h
-MK_ARCH="${shell uname -m}"
+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)
export HOST_ARCH=$(HOST_ARCH_X86)
else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
export HOST_ARCH=$(HOST_ARCH_AARCH64)
-else ifeq ("armv7l", $(MK_ARCH))
+else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7l"))
export HOST_ARCH=$(HOST_ARCH_ARM)
else ifeq ("riscv32", $(MK_ARCH))
export HOST_ARCH=$(HOST_ARCH_RISCV32)
KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
KBUILD_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
-KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
-
# macOS Mojave (10.14.X)
# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
PERL = perl
PYTHON ?= python
PYTHON2 = python2
-PYTHON3 = python3
+PYTHON3 ?= python3
DTC ?= $(objtree)/scripts/dtc/dtc
CHECK = sparse
KBUILD_CFLAGS += -O2
endif
+LTO_CFLAGS :=
+LTO_FINAL_LDFLAGS :=
+export LTO_CFLAGS LTO_FINAL_LDFLAGS
+ifdef CONFIG_LTO
+ ifeq ($(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 += $(call cc-option,-fno-delete-null-pointer-checks)
# disable stringop warnings in gcc 8+
endif
INPUTS-$(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
# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
+LDFLAGS_u-boot += --build-id=none
+
ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif
# Note: Script avoids bash construct, hence the strange double 'if'
# (patches welcome!)
define deprecated
- if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
+ @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
echo >&2 "===================== WARNING ======================"; \
echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
echo >&2 "for $(2)). Please update the board to use"; \
ifeq ($(CONFIG_DEPRECATED),y)
$(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
-ifeq ($(CONFIG_SPI),y)
-ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
- $(warning "The relevant config item with associated code will remove in v2019.07 release.")
-endif
-endif
endif
ifeq ($(CONFIG_OF_EMBED),y)
@echo >&2 "===================== WARNING ======================"
@echo >&2 "See doc/driver-model/migration.rst for more info."
@echo >&2 "===================================================="
endif
- $(call deprecated,CONFIG_DM_MMC CONFIG_BLK,MMC,v2019.04,$(CONFIG_MMC))
$(call deprecated,CONFIG_DM_USB CONFIG_OF_CONTROL CONFIG_BLK,\
USB,v2019.07,$(CONFIG_USB))
- $(call deprecated,CONFIG_AHCI,AHCI instead of CONFIG_MVSATA_IDE,v2019.07, \
- $(CONFIG_MVSATA_IDE))
- $(call deprecated,CONFIG_AHCI,AHCI,v2019.07, $(CONFIG_LIBATA))
$(call deprecated,CONFIG_DM_PCI,PCI,v2019.07,$(CONFIG_PCI))
$(call deprecated,CONFIG_DM_VIDEO,video,v2019.07,\
$(CONFIG_LCD)$(CONFIG_VIDEO))
-ifeq ($(CONFIG_SPI_FLASH),y)
-ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
- @echo >&2 "===================== WARNING ======================"
- @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
- @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
- @echo >&2 "Failure to update by the deadline may result in board removal."
- @echo >&2 "See doc/driver-model/migration.rst for more info."
- @echo >&2 "===================================================="
-endif
-endif
-ifneq ($(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.rst for more info."
- @echo >&2 "===================================================="
-endif
-endif
-ifneq ($(CONFIG_NET),)
-ifneq ($(CONFIG_DM_ETH),y)
- @echo >&2 "===================== WARNING ======================"
- @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
- @echo >&2 "for Ethernet drivers). Please update the board to use"
- @echo >&2 "CONFIG_DM_ETH before the v2020.07 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 "===================================================="
-endif
-endif
+ $(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))
@# 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.
# 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))
+
+# 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 \
-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 $(CONFIG_TPL_SEPARATE_BSS),,1) \
+ -a spl-dtb=$(have_spl_dt) -a tpl-dtb=$(have_tpl_dt) \
$(BINMAN_$(@F))
OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
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_OF_HOSTFILE),dts/dt.dtb) \
+ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \
,$(UBOOT_BIN)) FORCE
$(call if_changed,mkimage)
$(BOARD_SIZE_CHECK)
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 $@
ifeq ($(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) \
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 $@
+ cmd_keep_syms_lto = \
+ NM=$(NM) $(srctree)/scripts/gen_ll_addressable_symbols.sh $^ >$@
+
+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
quiet_cmd_u-boot__ ?= LD $@
- cmd_u-boot__ ?= $(LD) $(KBUILD_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)
+ cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
+ -T u-boot.lds $(u-boot-init) \
+ --whole-archive \
+ $(u-boot-main) \
+ --no-whole-archive \
+ $(PLATFORM_LIBS) -Map u-boot.map; \
+ $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
+endif
quiet_cmd_smap = GEN common/system_map.o
cmd_smap = \
$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
-c $(srctree)/common/system_map.c -o common/system_map.o
-u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
+u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
+$(call if_changed,u-boot__)
ifeq ($(CONFIG_KALLSYMS),y)
$(call cmd,smap)
endef
define filechk_defaultenv.h
- (grep -v '^#' | \
- grep -v '^$$' | \
+ ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
tr '\n' '\0' | \
sed -e 's/\\\x0\s*//g' | \
- xxd -i ; echo ", 0x00" ; )
+ xxd -i ; )
endef
define filechk_dt.h
boot* 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
+ 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
+
+# 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
+ drivers/video/fonts/*.S include/asm
# clean - Delete most, but leave enough to build external modules
#
$(build)=$(build-dir) $(@:.ko=.o)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-quiet_cmd_genenv = GENENV $@
+quiet_cmd_genenv = GENENV $@
cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
sed --in-place -e 's/\x00/\x0A/g' $@
projects / platform / kernel / u-boot.git / blobdiff