VERSION = 2014
PATCHLEVEL = 01
SUBLEVEL =
-EXTRAVERSION = -rc1
+EXTRAVERSION =
ifneq "$(SUBLEVEL)" ""
U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
else
SPLTREE := $(OBJTREE)/spl
TPLTREE := $(OBJTREE)/tpl
SRCTREE := $(CURDIR)
+srctree := $(SRCTREE)
TOPDIR := $(SRCTREE)
LNDIR := $(OBJTREE)
-export TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
+export TOPDIR SRCTREE srctree OBJTREE SPLTREE TPLTREE
MKCONFIG := $(SRCTREE)/mkconfig
export MKCONFIG
CROSS_COMPILE ?=
endif
+# 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 = gcc
+HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
+
+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 ;)
+
+# 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 += $(call os_x_before, 10, 5, "-multiply_defined suppress")
+endif
+
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
+include $(srctree)/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
+AWK = awk
+RANLIB = $(CROSS_COMPILE)RANLIB
+DTC = dtc
+CHECK = sparse
+
+CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+ -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
+
+KBUILD_CPPFLAGS := -D__KERNEL__
+
+KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
+ -Wno-format-security \
+ -fno-builtin -ffreestanding
+KBUILD_AFLAGS := -D__ASSEMBLY__
+
+export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
+export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
+export MAKE AWK
+export DTC CHECK CHECKFLAGS
+
+export KBUILD_CPPFLAGS
+export KBUILD_CFLAGS KBUILD_AFLAGS
+
+KBUILD_CFLAGS += -Os #-fomit-frame-pointer
+
+ifdef BUILD_TAG
+KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
+endif
+
+KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+
+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
+KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
+
+KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+
+# turn jbsr into jsr for m68k
+ifeq ($(ARCH),m68k)
+ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
+KBUILD_AFLAGS += -Wa,-gstabs,-S
+endif
+endif
+
# load other configuration
include $(TOPDIR)/config.mk
# Targets which don't build the source code
-NON_BUILD_TARGETS = backup clean clobber distclean mkproper tidy unconfig
+NON_BUILD_TARGETS = backup clean clobber distclean mrproper tidy unconfig
# Only do the generic board check when actually building, not configuring
ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
BOARD_SIZE_CHECK =
endif
+# Statically apply RELA-style relocations (currently arm64 only)
+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 ' '); \
+ $(obj)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 += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
ifneq ($(CONFIG_SPL_TARGET),)
ALL-$(CONFIG_SPL) += $(obj)$(CONFIG_SPL_TARGET:"%"=%)
endif
+ALL-$(CONFIG_REMAKE_ELF) += $(obj)u-boot.elf
# enable combined SPL/u-boot/dtb rules for tegra
ifneq ($(CONFIG_TEGRA),)
+ifeq ($(CONFIG_SPL),y)
ifeq ($(CONFIG_OF_SEPARATE),y)
ALL-y += $(obj)u-boot-dtb-tegra.bin
else
ALL-y += $(obj)u-boot-nodtb-tegra.bin
endif
endif
-
-build := -f $(TOPDIR)/scripts/Makefile.build -C
+endif
all: $(ALL-y) $(SUBDIR_EXAMPLES-y)
$(obj)u-boot.bin: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
+ $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
$(BOARD_SIZE_CHECK)
$(obj)u-boot.ldr: $(obj)u-boot
-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
$(obj)u-boot.pbl: $(obj)u-boot.bin
- $(obj)tools/mkimage -n $(CONFIG_PBLRCW_CONFIG) \
- -R $(CONFIG_PBLPBI_CONFIG) -T pblimage \
+ $(obj)tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
+ -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
-d $< $@
$(obj)u-boot.sha1: $(obj)u-boot.bin
$(obj)u-boot.spr: $(obj)u-boot.img $(obj)spl/u-boot-spl.bin
$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
- -d $(obj)spl/u-boot-spl.bin $(obj)spl/u-boot-spl.img
- tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_SPL_PAD_TO) \
- of=$(obj)spl/u-boot-spl-pad.img 2>/dev/null
- dd if=$(obj)spl/u-boot-spl.img of=$(obj)spl/u-boot-spl-pad.img \
- conv=notrunc 2>/dev/null
- cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
+ -d $(obj)spl/u-boot-spl.bin $@
+ $(OBJCOPY) -I binary -O binary \
+ --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
+ cat $(obj)u-boot.img >> $@
ifneq ($(CONFIG_TEGRA),)
$(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
# at the start padded up to the start of the SPL image. And then concat
# the SPL image to the end.
$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
- tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
- of=$(obj)u-boot-pad.img 2>/dev/null
- dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
- conv=notrunc 2>/dev/null
- cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
+ $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
+ --gap-fill=0xff $(obj)u-boot.img $@
+ cat $(obj)spl/u-boot-spl.bin >> $@
+
+# Create a new ELF from a raw binary file. This is useful for arm64
+# where static relocation needs to be performed on the raw binary,
+# but certain simulators only accept an ELF file (but don't do the
+# relocation).
+# FIXME refactor dts/Makefile to share target/arch detection
+$(obj)u-boot.elf: $(obj)u-boot.bin
+ @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
+ $< $(obj)u-boot-elf.o
+ @$(LD) $(obj)u-boot-elf.o -o $@ \
+ --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
+ -Ttext=$(CONFIG_SYS_TEXT_BASE)
ifeq ($(CONFIG_SANDBOX),y)
GEN_UBOOT = \
$(MAKE) $(build) $(dir $(subst $(obj),,$@))
$(SUBDIRS): depend
- $(MAKE) -C $@ all
+ $(MAKE) $(build) $@ all
$(SUBDIR_EXAMPLES-y): $(obj)u-boot
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
nand_spl: $(TIMESTAMP_FILE) $(VERSION_FILE) depend
- $(MAKE) -C nand_spl/board/$(BOARDDIR) all
+ $(MAKE) $(build) nand_spl/board/$(BOARDDIR) all
$(obj)u-boot-nand.bin: nand_spl $(obj)u-boot.bin
cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
@ exit 1
tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
- $(MAKE) -C $@ all
+ $(MAKE) $(build) $@ all
endif # config.mk
-# ARM relocations should all be R_ARM_RELATIVE.
+# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
+# R_AARCH64_RELATIVE (64-bit).
checkarmreloc: $(obj)u-boot
- @if test "R_ARM_RELATIVE" != \
- "`$(CROSS_COMPILE)readelf -r $< | cut -d ' ' -f 4 | grep R_ARM | sort -u`"; \
- then echo "$< contains relocations other than \
- R_ARM_RELATIVE"; false; fi
+ @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
$(VERSION_FILE):
@mkdir -p $(dir $(VERSION_FILE))
@cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
easylogo env gdb:
- $(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
+ $(MAKE) $(build) tools/$@ MTD_VERSION=${MTD_VERSION}
+
gdbtools: gdb
xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
- $(MAKE) -C tools HOST_TOOLS_ALL=y
+ $(MAKE) $(build) tools HOST_TOOLS_ALL=y
.PHONY : CHANGELOG
CHANGELOG:
$(obj)examples/standalone/interrupt \
$(obj)examples/standalone/mem_to_mem_idma2intr \
$(obj)examples/standalone/sched \
- $(obj)examples/standalone/smc911{11,x}_eeprom \
+ $(addprefix $(obj)examples/standalone/, smc91111_eeprom smc911x_eeprom) \
$(obj)examples/standalone/test_burst \
$(obj)examples/standalone/timer
- @rm -f $(obj)examples/api/demo{,.bin}
+ @rm -f $(addprefix $(obj)examples/api/, demo demo.bin)
@rm -f $(obj)tools/bmp_logo $(obj)tools/easylogo/easylogo \
$(obj)tools/env/fw_printenv \
$(obj)tools/envcrc \
- $(obj)tools/gdb/{gdbcont,gdbsend} \
+ $(addprefix $(obj)tools/gdb/, gdbcont gdbsend) \
$(obj)tools/gen_eth_addr $(obj)tools/img2srec \
- $(obj)tools/dump{env,}image \
- $(obj)tools/mk{env,}image $(obj)tools/mpc86x_clk \
- $(obj)tools/mk{$(BOARD),}spl \
+ $(obj)tools/dumpimage \
+ $(addprefix $(obj)tools/, mkenvimage mkimage) \
+ $(obj)tools/mpc86x_clk \
+ $(addprefix $(obj)tools/, mk$(BOARD)spl mkexynosspl) \
$(obj)tools/mxsboot \
$(obj)tools/ncb $(obj)tools/ubsha1 \
$(obj)tools/kernel-doc/docproc \
$(obj)tools/proftool
- @rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image} \
+ @rm -f $(addprefix $(obj)board/cray/L1/, bootscript.c bootscript.image) \
$(obj)board/matrix_vision/*/bootscript.img \
+ $(obj)spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl \
$(obj)u-boot.lds \
- $(obj)arch/blackfin/cpu/init.{lds,elf}
+ $(addprefix $(obj)arch/blackfin/cpu/, init.lds init.elf)
@rm -f $(obj)include/bmp_logo.h
@rm -f $(obj)include/bmp_logo_data.h
@rm -f $(obj)lib/asm-offsets.s
@rm -f $(obj)u-boot.dtb
@rm -f $(obj)u-boot.sb
@rm -f $(obj)u-boot.spr
- @rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
- @rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
- @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
+ @rm -f $(addprefix $(obj)nand_spl/, u-boot.lds u-boot.lst System.map)
+ @rm -f $(addprefix $(obj)nand_spl/, u-boot-nand_spl.lds u-boot-spl u-boot-spl.map)
+ @rm -f $(addprefix $(obj)spl/, u-boot-spl u-boot-spl.bin u-boot-spl.map)
@rm -f $(obj)spl/u-boot-spl.lds
- @rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map}
+ @rm -f $(addprefix $(obj)tpl/, u-boot-tpl u-boot-tpl.bin u-boot-tpl.map)
@rm -f $(obj)tpl/u-boot-spl.lds
@rm -f $(obj)MLO MLO.byteswap
@rm -f $(obj)SPL
@rm -fr $(obj)include/generated
@[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
@rm -f $(obj)dts/*.tmp
- @rm -f $(obj)spl/u-boot-spl{,-pad}.ais
+ @rm -f $(addprefix $(obj)spl/, u-boot-spl.ais, u-boot-spl-pad.ais)
mrproper \
distclean: clobber unconfig
projects / oweals / u-boot.git / blobdiff