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      1 # SPDX-License-Identifier: GPL-2.0+
      2 #
      3 # (C) Copyright 2007 Semihalf
      4 
      5 # Provide symbol API_BUILD to signal that the API example is being built.
      6 KBUILD_CPPFLAGS += -DAPI_BUILD
      7 
      8 ifeq ($(ARCH),powerpc)
      9 LOAD_ADDR = 0x40000
     10 endif
     11 ifeq ($(ARCH),arm)
     12 LOAD_ADDR = 0x1000000
     13 endif
     14 ifeq ($(ARCH),mips)
     15 ifdef CONFIG_64BIT
     16 LOAD_ADDR = 0xffffffff80200000
     17 else
     18 LOAD_ADDR = 0x80200000
     19 endif
     20 endif
     21 
     22 # Resulting ELF and binary exectuables will be named demo and demo.bin
     23 extra-y = demo
     24 
     25 # Source files located in the examples/api directory
     26 OBJ-y += crt0.o
     27 OBJ-y += demo.o
     28 OBJ-y += glue.o
     29 OBJ-y += libgenwrap.o
     30 
     31 # Source files which exist outside the examples/api directory
     32 EXT_COBJ-y += lib/crc32.o
     33 EXT_COBJ-y += lib/ctype.o
     34 EXT_COBJ-y += lib/div64.o
     35 EXT_COBJ-y += lib/hexdump.o
     36 EXT_COBJ-y += lib/string.o
     37 EXT_COBJ-y += lib/time.o
     38 EXT_COBJ-y += lib/vsprintf.o
     39 EXT_COBJ-y += lib/charset.o
     40 EXT_COBJ-$(CONFIG_LIB_UUID) += lib/uuid.o
     41 EXT_SOBJ-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
     42 ifeq ($(ARCH),arm)
     43 EXT_SOBJ-$(CONFIG_USE_ARCH_MEMSET) += arch/arm/lib/memset.o
     44 endif
     45 
     46 # Create a list of object files to be compiled
     47 OBJS := $(OBJ-y) $(notdir $(EXT_COBJ-y) $(EXT_SOBJ-y))
     48 targets += $(OBJS)
     49 OBJS := $(addprefix $(obj)/,$(OBJS))
     50 
     51 #########################################################################
     52 
     53 quiet_cmd_link_demo = LD      $@
     54 cmd_link_demo = $(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $(filter-out $(PHONY), $^) $(PLATFORM_LIBS)
     55 
     56 $(obj)/demo: $(OBJS) FORCE
     57 	$(call if_changed,link_demo)
     58 
     59 # demo.bin is never genrated. Is this necessary?
     60 OBJCOPYFLAGS_demo.bin := -O binary
     61 $(obj)/demo.bin: $(obj)/demo FORCE
     62 	$(call if_changed,objcopy)
     63 
     64 # Rule to build generic library C files
     65 $(addprefix $(obj)/,$(notdir $(EXT_COBJ-y))): $(obj)/%.o: lib/%.c FORCE
     66 	$(call cmd,force_checksrc)
     67 	$(call if_changed_rule,cc_o_c)
     68 
     69 # Rule to build architecture-specific library assembly files
     70 $(addprefix $(obj)/,$(notdir $(EXT_SOBJ-y))): $(obj)/%.o: arch/$(ARCH)/lib/%.S FORCE
     71 	$(call if_changed_dep,as_o_S)
     72