mirror of
https://github.com/smaeul/u-boot.git
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e32a268b6f
This fixes building time.c when unreferenced functions are added. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
75 lines
2.2 KiB
Makefile
75 lines
2.2 KiB
Makefile
#
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# (C) Copyright 2007 Semihalf
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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ifeq ($(ARCH),powerpc)
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LOAD_ADDR = 0x40000
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endif
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ifeq ($(ARCH),arm)
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LOAD_ADDR = 0x1000000
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endif
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include $(TOPDIR)/config.mk
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# Resulting ELF and binary exectuables will be named demo and demo.bin
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OUTPUT-$(CONFIG_API) = $(obj)demo
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OUTPUT = $(OUTPUT-y)
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# Source files located in the examples/api directory
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SOBJ_FILES-$(CONFIG_API) += crt0.o
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COBJ_FILES-$(CONFIG_API) += demo.o
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COBJ_FILES-$(CONFIG_API) += glue.o
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COBJ_FILES-$(CONFIG_API) += libgenwrap.o
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# Source files which exist outside the examples/api directory
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EXT_COBJ_FILES-$(CONFIG_API) += lib/crc32.o
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EXT_COBJ_FILES-$(CONFIG_API) += lib/ctype.o
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EXT_COBJ_FILES-$(CONFIG_API) += lib/div64.o
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EXT_COBJ_FILES-$(CONFIG_API) += lib/string.o
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EXT_COBJ_FILES-$(CONFIG_API) += lib/time.o
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EXT_COBJ_FILES-$(CONFIG_API) += lib/vsprintf.o
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ifeq ($(ARCH),powerpc)
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EXT_SOBJ_FILES-$(CONFIG_API) += arch/powerpc/lib/ppcstring.o
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endif
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# Create a list of source files so their dependencies can be auto-generated
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SRCS += $(addprefix $(SRCTREE)/,$(EXT_COBJ_FILES-y:.o=.c))
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SRCS += $(addprefix $(SRCTREE)/,$(EXT_SOBJ_FILES-y:.o=.S))
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SRCS += $(addprefix $(SRCTREE)/examples/api/,$(COBJ_FILES-y:.o=.c))
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SRCS += $(addprefix $(SRCTREE)/examples/api/,$(SOBJ_FILES-y:.o=.S))
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# Create a list of object files to be compiled
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OBJS += $(addprefix $(obj),$(SOBJ_FILES-y))
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OBJS += $(addprefix $(obj),$(COBJ_FILES-y))
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OBJS += $(addprefix $(obj),$(notdir $(EXT_COBJ_FILES-y)))
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OBJS += $(addprefix $(obj),$(notdir $(EXT_SOBJ_FILES-y)))
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CPPFLAGS += -I..
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all: $(obj).depend $(OUTPUT)
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#########################################################################
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$(OUTPUT): $(OBJS)
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$(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $^ $(PLATFORM_LIBS)
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$(OBJCOPY) -O binary $@ $(OUTPUT).bin 2>/dev/null
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# Rule to build generic library C files
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$(obj)%.o: $(SRCTREE)/lib/%.c
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$(CC) -g $(CFLAGS) -c -o $@ $<
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# Rule to build architecture-specific library assembly files
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$(obj)%.o: $(SRCTREE)/arch/$(ARCH)/lib/%.S
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$(CC) -g $(CFLAGS) -c -o $@ $<
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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