xref: /openbmc/u-boot/examples/standalone/Makefile (revision ee7bb5be) 
1#
2# (C) Copyright 2000-2006
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
5# SPDX-License-Identifier:	GPL-2.0+
6#
7
8extra-y        := hello_world
9extra-$(CONFIG_SMC91111)           += smc91111_eeprom
10extra-$(CONFIG_SMC911X)            += smc911x_eeprom
11extra-$(CONFIG_SPI_FLASH_ATMEL)    += atmel_df_pow2
12extra-$(CONFIG_MPC5xxx)            += interrupt
13extra-$(CONFIG_8xx)                += test_burst timer
14extra-$(CONFIG_MPC8260)            += mem_to_mem_idma2intr
15extra-$(CONFIG_PPC)                += sched
16
17#
18# Some versions of make do not handle trailing white spaces properly;
19# leading to build failures. The problem was found with GNU Make 3.80.
20# Using 'strip' as a workaround for the problem.
21#
22ELF := $(strip $(extra-y))
23
24extra-y += $(addsuffix .srec,$(extra-y)) $(addsuffix .bin,$(extra-y))
25clean-files  := *.srec *.bin
26
27COBJS	:= $(ELF:=.o)
28
29LIB	= $(obj)/libstubs.o
30
31LIBOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
32LIBOBJS-$(CONFIG_8xx) += test_burst_lib.o
33LIBOBJS-y += stubs.o
34
35.SECONDARY: $(call objectify,$(COBJS))
36targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBOBJS-y)
37
38LIBOBJS	:= $(addprefix $(obj)/,$(LIBOBJS-y))
39ELF	:= $(addprefix $(obj)/,$(ELF))
40
41# For PowerPC there's no need to compile standalone applications as a
42# relocatable executable.  The relocation data is not needed, and
43# also causes the entry point of the standalone application to be
44# inconsistent.
45ifeq ($(CONFIG_PPC),y)
46PLATFORM_CPPFLAGS := $(filter-out $(RELFLAGS),$(PLATFORM_CPPFLAGS))
47endif
48
49# We don't want gcc reordering functions if possible.  This ensures that an
50# application's entry point will be the first function in the application's
51# source file.
52ccflags-y += $(call cc-option,-fno-toplevel-reorder)
53
54#########################################################################
55
56quiet_cmd_link_lib = LD      $@
57      cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
58
59$(LIB):	$(LIBOBJS) FORCE
60	$(call if_changed,link_lib)
61
62quiet_cmd_link_elf = LD      $@
63      cmd_link_elf = $(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
64		     -o $@ -e $(SYM_PREFIX)$(@F) $< $(LIB) $(PLATFORM_LIBGCC)
65
66$(ELF): $(obj)/%: $(obj)/%.o $(LIB) FORCE
67	$(call if_changed,link_elf)
68
69$(obj)/%.srec: OBJCOPYFLAGS := -O srec
70$(obj)/%.srec: $(obj)/% FORCE
71	$(call if_changed,objcopy)
72
73$(obj)/%.bin: OBJCOPYFLAGS := -O binary
74$(obj)/%.bin: $(obj)/% FORCE
75	$(call if_changed,objcopy)
76
77# some files can only build in ARM or THUMB2, not THUMB1
78
79ifdef CONFIG_SYS_THUMB_BUILD
80ifndef CONFIG_HAS_THUMB2
81
82CFLAGS_stubs.o := -marm
83
84endif
85endif
86