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.
6KBUILD_CPPFLAGS += -DAPI_BUILD
7
8# Environment variable loadaddr is set from CONFIG_SYS_LOAD_ADDR.
9# Run the examples 4 MiB above this address.
10LOAD_ADDR:=${shell printf 0x%X $$(( $(CONFIG_SYS_LOAD_ADDR) + 0x400000 ))}
11
12# Resulting ELF and binary exectuables will be named demo and demo.bin
13extra-y = demo
14
15# Source files located in the examples/api directory
16OBJ-y += crt0.o
17OBJ-y += demo.o
18OBJ-y += glue.o
19OBJ-y += libgenwrap.o
20
21# Source files which exist outside the examples/api directory
22EXT_COBJ-y += lib/crc32.o
23EXT_COBJ-y += lib/ctype.o
24EXT_COBJ-y += lib/div64.o
25EXT_COBJ-y += lib/hexdump.o
26EXT_COBJ-y += lib/string.o
27EXT_COBJ-y += lib/time.o
28EXT_COBJ-y += lib/vsprintf.o
29EXT_COBJ-y += lib/charset.o
30EXT_COBJ-$(CONFIG_LIB_UUID) += lib/uuid.o
31EXT_SOBJ-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
32ifneq ($(CONFIG_ARM)$(CONFIG_RISCV),)
33EXT_SOBJ-$(CONFIG_USE_ARCH_MEMSET) += arch/$(ARCH)/lib/memset.o
34endif
35
36# Create a list of object files to be compiled
37OBJS := $(OBJ-y) $(notdir $(EXT_COBJ-y) $(EXT_SOBJ-y))
38targets += $(OBJS)
39OBJS := $(addprefix $(obj)/,$(OBJS))
40
41#########################################################################
42
43quiet_cmd_link_demo = LD      $@
44cmd_link_demo = $(LD) --gc-sections -Ttext $(LOAD_ADDR) -o $@ $(filter-out $(PHONY), $^) $(PLATFORM_LIBS)
45
46$(obj)/demo: $(OBJS) FORCE
47	$(call if_changed,link_demo)
48
49# demo.bin is never genrated. Is this necessary?
50OBJCOPYFLAGS_demo.bin := -O binary
51$(obj)/demo.bin: $(obj)/demo FORCE
52	$(call if_changed,objcopy)
53
54# Rule to build generic library C files
55$(addprefix $(obj)/,$(notdir $(EXT_COBJ-y))): $(obj)/%.o: lib/%.c FORCE
56	$(call cmd,force_checksrc)
57	$(call if_changed_rule,cc_o_c)
58
59# Rule to build architecture-specific library assembly files
60$(addprefix $(obj)/,$(notdir $(EXT_SOBJ-y))): $(obj)/%.o: arch/$(ARCH)/lib/%.S FORCE
61	$(call if_changed_dep,as_o_S)
62