mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
a6c1309782
Prior to the previous patch, a freshly created .u-boot.cfg.cmd may not correctly represent all dependencies for u-boot.cfg. The previous change only solved this issue for fresh builds; when performing an incremental build, the deficient .u-boot.cfg.cmd is already present, so u-boot.cfg is not rebuilt, and hence .u-boot.cfg.cmd is not rebuilt with the correct content. Solve this by explicitly detecting when the dependency file .u-boot.cfg.d has not been integrated into .u-boot.cfg.cmd, and force u-boot.cfg to be rebuilt in this case by deleting it first. This is possible since if_changed_dep will always delete .u-boot.cfg.d when it executes successfully, so its presence means either that the previous build was made by a source tree that contained a Makefile that didn't include the previous patch, or that the build failed part way through executing if_changed_dep for u-boot.cfg. Forcing a rebuild of u-boot.cfg is required in the former case, and will cause no additional work in the latter case, since the file would be rebuilt anyway for the same reason it was being rebuilt by the previous build. Signed-off-by: Stephen Warren <swarren@nvidia.com>
336 lines
10 KiB
Makefile
336 lines
10 KiB
Makefile
#
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# (C) Copyright 2000-2011
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011
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# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
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#
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# (C) Copyright 2011
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# Texas Instruments Incorporated - http://www.ti.com/
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# Aneesh V <aneesh@ti.com>
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Based on top-level Makefile.
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#
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src := $(obj)
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# Create output directory if not already present
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_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
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include $(srctree)/scripts/Kbuild.include
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-include include/config/auto.conf
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-include $(obj)/include/autoconf.mk
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KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD
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ifeq ($(CONFIG_TPL_BUILD),y)
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KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD
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endif
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ifeq ($(CONFIG_TPL_BUILD),y)
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SPL_BIN := u-boot-tpl
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else
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SPL_BIN := u-boot-spl
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endif
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include $(srctree)/config.mk
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include $(srctree)/arch/$(ARCH)/Makefile
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# Enable garbage collection of un-used sections for SPL
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KBUILD_CFLAGS += -ffunction-sections -fdata-sections
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LDFLAGS_FINAL += --gc-sections
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# FIX ME
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cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
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$(NOSTDINC_FLAGS)
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c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
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HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
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libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
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libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
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libs-$(CONFIG_SPL_FRAMEWORK) += common/spl/
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libs-y += common/init/
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# Special handling for a few options which support SPL/TPL
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ifeq ($(CONFIG_TPL_BUILD),y)
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libs-$(CONFIG_TPL_LIBCOMMON_SUPPORT) += common/ cmd/
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libs-$(CONFIG_TPL_LIBGENERIC_SUPPORT) += lib/
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else
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libs-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/ cmd/
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libs-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
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endif
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libs-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
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libs-y += drivers/
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libs-y += dts/
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libs-y += fs/
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libs-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
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libs-$(CONFIG_SPL_NET_SUPPORT) += net/
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head-y := $(addprefix $(obj)/,$(head-y))
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libs-y := $(addprefix $(obj)/,$(libs-y))
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u-boot-spl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y)))
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libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
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# Add GCC lib
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ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
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PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
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PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
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endif
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u-boot-spl-init := $(head-y)
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u-boot-spl-main := $(libs-y)
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ifdef CONFIG_SPL_OF_PLATDATA
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u-boot-spl-platdata := $(obj)/dts/dt-platdata.o
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endif
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# Linker Script
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ifdef CONFIG_SPL_LDSCRIPT
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# need to strip off double quotes
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LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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$(error could not find linker script)
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endif
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# Special flags for CPP when processing the linker script.
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# Pass the version down so we can handle backwards compatibility
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# on the fly.
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LDPPFLAGS += \
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-include $(srctree)/include/u-boot/u-boot.lds.h \
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-include $(objtree)/include/config.h \
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-DCPUDIR=$(CPUDIR) \
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$(shell $(LD) --version | \
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sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
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quiet_cmd_mkimage = MKIMAGE $@
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cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
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$(if $(KBUILD_VERBOSE:1=), >/dev/null)
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MKIMAGEFLAGS_MLO = -T omapimage -a $(CONFIG_SPL_TEXT_BASE)
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MKIMAGEFLAGS_MLO.byteswap = -T omapimage -n byteswap -a $(CONFIG_SPL_TEXT_BASE)
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MLO MLO.byteswap: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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ifeq ($(CONFIG_SYS_SOC),"at91")
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MKIMAGEFLAGS_boot.bin = -T atmelimage
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ifeq ($(CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER),y)
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MKIMAGEFLAGS_boot.bin += -n $(shell $(obj)/../tools/atmel_pmecc_params)
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boot.bin: $(obj)/../tools/atmel_pmecc_params
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endif
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boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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else
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ifdef CONFIG_ARCH_ZYNQ
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MKIMAGEFLAGS_boot.bin = -T zynqimage
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endif
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ifdef CONFIG_ARCH_ZYNQMP
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MKIMAGEFLAGS_boot.bin = -T zynqmpimage
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endif
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spl/boot.bin: $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,mkimage)
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endif
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ALL-y += $(obj)/$(SPL_BIN).bin $(obj)/$(SPL_BIN).cfg
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ifdef CONFIG_SAMSUNG
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ALL-y += $(obj)/$(BOARD)-spl.bin
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endif
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ifdef CONFIG_ARCH_SOCFPGA
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ALL-y += $(obj)/$(SPL_BIN).sfp
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endif
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ifdef CONFIG_SUNXI
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ALL-y += $(obj)/sunxi-spl.bin
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endif
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ifeq ($(CONFIG_SYS_SOC),"at91")
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ALL-y += boot.bin
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endif
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ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
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ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
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all: $(ALL-y)
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quiet_cmd_cat = CAT $@
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cmd_cat = cat $(filter-out $(PHONY), $^) > $@
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quiet_cmd_copy = COPY $@
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cmd_copy = cp $< $@
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ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),yy)
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$(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin \
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$(obj)/$(SPL_BIN).dtb FORCE
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$(call if_changed,cat)
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
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$(call if_changed,copy)
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else
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$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
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$(call if_changed,copy)
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endif
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# Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
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$(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
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@bss_size_str=$(shell $(NM) $< | awk 'BEGIN {size = 0} /__bss_size/ {size = $$1} END {print "ibase=16; " toupper(size)}' | bc); \
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dd if=/dev/zero of=$@ bs=1 count=$${bss_size_str} 2>/dev/null;
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# Pass the original device tree file through fdtgrep twice. The first pass
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# removes any unwanted nodes (i.e. those which don't have the
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# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
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# pass removes various unused properties from the remaining nodes.
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# The output is typically a much smaller device tree file.
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quiet_cmd_fdtgrep = FDTGREP $@
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cmd_fdtgrep = $(objtree)/tools/fdtgrep -b u-boot,dm-pre-reloc -RT $< \
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-n /chosen -O dtb | \
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$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
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$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
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$(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
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$(call if_changed,fdtgrep)
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quiet_cmd_cpp_cfg = CFG $@
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cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
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-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
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# If .u-boot.cfg.d is still present, then either:
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# a) The previous build used a Makefile that used if_changed rather than
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# if_changed_dep when building u-boot.cfg, and hence any later builds will
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# be unaware of the dependencies for u-boot.cfg. In this case, we must
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# delete u-boot.cfg to force it and .u-boot.cfg.cmd to be rebuilt the
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# correct way.
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# b) The previous build failed or was interrupted while building u-boot.cfg,
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# so deleting u-boot.cfg isn't going to cause any additional work.
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ifneq ($(wildcard $(obj)/.$(SPL_BIN).d),)
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unused := $(shell rm -f $(obj)/$(SPL_BIN).cfg)
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endif
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$(obj)/$(SPL_BIN).cfg: include/config.h FORCE
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$(call if_changed_dep,cpp_cfg)
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pythonpath = PYTHONPATH=tools
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quiet_cmd_dtocc = DTOC C $@
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cmd_dtocc = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ platdata
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quiet_cmd_dtoch = DTOC H $@
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cmd_dtoch = $(pythonpath) $(srctree)/tools/dtoc/dtoc -d $(obj)/$(SPL_BIN).dtb -o $@ struct
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quiet_cmd_plat = PLAT $@
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cmd_plat = $(CC) $(c_flags) -c $< -o $@
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$(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c include/generated/dt-structs.h
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$(call if_changed,plat)
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PHONY += dts_dir
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dts_dir:
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$(shell [ -d $(obj)/dts ] || mkdir -p $(obj)/dts)
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include/generated/dt-structs.h: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
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$(call if_changed,dtoch)
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$(obj)/dts/dt-platdata.c: $(obj)/$(SPL_BIN).dtb dts_dir dtoc
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$(call if_changed,dtocc)
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dtoc: #$(objtree)/tools/_libfdt.so
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ifdef CONFIG_SAMSUNG
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ifdef CONFIG_VAR_SIZE_SPL
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VAR_SIZE_PARAM = --vs
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else
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VAR_SIZE_PARAM =
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endif
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$(obj)/$(BOARD)-spl.bin: $(obj)/u-boot-spl.bin
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$(if $(wildcard $(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl),\
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$(objtree)/spl/board/samsung/$(BOARD)/tools/mk$(BOARD)spl,\
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$(objtree)/tools/mkexynosspl) $(VAR_SIZE_PARAM) $< $@
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endif
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quiet_cmd_objcopy = OBJCOPY $@
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cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
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OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary
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$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
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$(call if_changed,objcopy)
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LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
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ifneq ($(CONFIG_SPL_TEXT_BASE),)
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LDFLAGS_$(SPL_BIN) += -Ttext $(CONFIG_SPL_TEXT_BASE)
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endif
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MKIMAGEFLAGS_$(SPL_BIN).sfp = -T socfpgaimage
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$(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mkimage)
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quiet_cmd_mksunxiboot = MKSUNXI $@
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cmd_mksunxiboot = $(objtree)/tools/mksunxiboot $< $@
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$(obj)/sunxi-spl.bin: $(obj)/$(SPL_BIN).bin FORCE
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$(call if_changed,mksunxiboot)
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# Rule to link u-boot-spl
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# May be overridden by arch/$(ARCH)/config.mk
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quiet_cmd_u-boot-spl ?= LD $@
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cmd_u-boot-spl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-init)) --start-group \
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$(patsubst $(obj)/%,%,$(u-boot-spl-main)) \
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$(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) \
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--end-group \
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$(PLATFORM_LIBS) -Map $(SPL_BIN).map -o $(SPL_BIN))
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$(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \
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$(u-boot-spl-main) $(obj)/u-boot-spl.lds FORCE
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$(call if_changed,u-boot-spl)
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$(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ;
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PHONY += $(u-boot-spl-dirs)
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$(u-boot-spl-dirs): $(u-boot-spl-platdata)
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$(Q)$(MAKE) $(build)=$@
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quiet_cmd_cpp_lds = LDS $@
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cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
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-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
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$(obj)/u-boot-spl.lds: $(LDSCRIPT) FORCE
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$(call if_changed_dep,cpp_lds)
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# read all saved command lines
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targets := $(wildcard $(sort $(targets)))
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cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
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ifneq ($(cmd_files),)
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$(cmd_files): ; # Do not try to update included dependency files
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include $(cmd_files)
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endif
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PHONY += FORCE
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FORCE:
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# Declare the contents of the .PHONY variable as phony. We keep that
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# information in a variable so we can use it in if_changed and friends.
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.PHONY: $(PHONY)
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