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