mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
80 lines
2.3 KiB
Makefile
80 lines
2.3 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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extra-y := hello_world
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extra-$(CONFIG_SMC91111) += smc91111_eeprom
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extra-$(CONFIG_SMC911X) += smc911x_eeprom
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extra-$(CONFIG_SPI_FLASH_ATMEL) += atmel_df_pow2
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extra-$(CONFIG_PPC) += sched
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#
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# Some versions of make do not handle trailing white spaces properly;
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# leading to build failures. The problem was found with GNU Make 3.80.
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# Using 'strip' as a workaround for the problem.
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#
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ELF := $(strip $(extra-y))
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extra-y += $(addsuffix .srec,$(extra-y)) $(addsuffix .bin,$(extra-y))
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clean-files := *.srec *.bin
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COBJS := $(ELF:=.o)
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LIB = $(obj)/libstubs.o
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LIBOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
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LIBOBJS-y += stubs.o
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.SECONDARY: $(call objectify,$(COBJS))
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targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBOBJS-y)
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LIBOBJS := $(addprefix $(obj)/,$(LIBOBJS-y))
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ELF := $(addprefix $(obj)/,$(ELF))
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# For PowerPC there's no need to compile standalone applications as a
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# relocatable executable. The relocation data is not needed, and
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# also causes the entry point of the standalone application to be
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# inconsistent.
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ifeq ($(CONFIG_PPC),y)
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PLATFORM_CPPFLAGS := $(filter-out $(RELFLAGS),$(PLATFORM_CPPFLAGS))
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endif
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# We don't want gcc reordering functions if possible. This ensures that an
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# application's entry point will be the first function in the application's
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# source file.
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ccflags-y += $(call cc-option,-fno-toplevel-reorder)
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#########################################################################
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quiet_cmd_link_lib = LD $@
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cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
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$(LIB): $(LIBOBJS) FORCE
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$(call if_changed,link_lib)
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quiet_cmd_link_elf = LD $@
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cmd_link_elf = $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
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-o $@ -e $(SYM_PREFIX)$(@F) $< $(LIB) $(PLATFORM_LIBGCC)
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$(ELF): $(obj)/%: $(obj)/%.o $(LIB) FORCE
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$(call if_changed,link_elf)
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$(obj)/%.srec: OBJCOPYFLAGS := -O srec
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$(obj)/%.srec: $(obj)/% FORCE
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$(call if_changed,objcopy)
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$(obj)/%.bin: OBJCOPYFLAGS := -O binary
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$(obj)/%.bin: $(obj)/% FORCE
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$(call if_changed,objcopy)
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# some files can only build in ARM or THUMB2, not THUMB1
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ifdef CONFIG_SYS_THUMB_BUILD
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ifndef CONFIG_HAS_THUMB2
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CFLAGS_stubs.o := -marm
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endif
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endif
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