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![Jack Mitchell](/assets/img/avatar_default.png)
Add support for defining the gcc lib in standalone examples as is done in the main u-boot Makefile Signed-off-by: Jack Mitchell <jack.mitchell@dbbroadcast.co.uk>
114 lines
3.2 KiB
Makefile
114 lines
3.2 KiB
Makefile
#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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include $(TOPDIR)/config.mk
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ELF-$(ARCH) :=
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ELF-$(BOARD) :=
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ELF-$(CPU) :=
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ELF-y := hello_world
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ELF-$(CONFIG_SMC91111) += smc91111_eeprom
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ELF-$(CONFIG_SMC911X) += smc911x_eeprom
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ELF-$(CONFIG_SPI_FLASH_ATMEL) += atmel_df_pow2
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ELF-i386 += 82559_eeprom
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ELF-mpc5xxx += interrupt
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ELF-mpc8xx += test_burst timer
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ELF-mpc8260 += mem_to_mem_idma2intr
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ELF-ppc += sched
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ELF-oxc += eepro100_eeprom
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#
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# Some versions of make do not handle trailing white spaces properly;
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# leading to build failures. The problem was found with GNU Make 3.80.
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# Using 'strip' as a workaround for the problem.
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#
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ELF := $(strip $(ELF-y) $(ELF-$(ARCH)) $(ELF-$(BOARD)) $(ELF-$(CPU)))
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SREC := $(addsuffix .srec,$(ELF))
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BIN := $(addsuffix .bin,$(ELF))
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COBJS := $(ELF:=.o)
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LIB = $(obj)libstubs.o
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LIBAOBJS-$(ARCH) :=
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LIBAOBJS-$(CPU) :=
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LIBAOBJS-ppc += $(ARCH)_longjmp.o $(ARCH)_setjmp.o
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LIBAOBJS-mpc8xx += test_burst_lib.o
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LIBAOBJS := $(LIBAOBJS-$(ARCH)) $(LIBAOBJS-$(CPU))
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LIBCOBJS = stubs.o
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LIBOBJS = $(addprefix $(obj),$(LIBAOBJS) $(LIBCOBJS))
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SRCS := $(COBJS:.o=.c) $(LIBCOBJS:.o=.c) $(LIBAOBJS:.o=.S)
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OBJS := $(addprefix $(obj),$(COBJS))
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ELF := $(addprefix $(obj),$(ELF))
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BIN := $(addprefix $(obj),$(BIN))
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SREC := $(addprefix $(obj),$(SREC))
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# Add GCC lib
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ifdef USE_PRIVATE_LIBGCC
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ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
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PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
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else
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PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
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endif
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else
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PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
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endif
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PLATFORM_LIBS += $(PLATFORM_LIBGCC)
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export PLATFORM_LIBS
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CPPFLAGS += -I..
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# For PowerPC there's no need to compile standalone applications as a
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# relocatable executable. The relocation data is not needed, and
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# also causes the entry point of the standalone application to be
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# inconsistent.
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ifeq ($(ARCH),powerpc)
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AFLAGS := $(filter-out $(RELFLAGS),$(AFLAGS))
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CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS))
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CPPFLAGS := $(filter-out $(RELFLAGS),$(CPPFLAGS))
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endif
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# We don't want gcc reordering functions if possible. This ensures that an
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# application's entry point will be the first function in the application's
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# source file.
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CFLAGS_NTR := $(call cc-option,-fno-toplevel-reorder)
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CFLAGS += $(CFLAGS_NTR)
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all: $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF)
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#########################################################################
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$(LIB): $(obj).depend $(LIBOBJS)
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$(call cmd_link_o_target, $(LIBOBJS))
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$(ELF):
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$(obj)%: $(obj)%.o $(LIB)
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$(LD) $(LDFLAGS) -g -Ttext $(CONFIG_STANDALONE_LOAD_ADDR) \
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-o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \
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$(PLATFORM_LIBS)
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$(SREC):
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$(obj)%.srec: $(obj)%
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$(OBJCOPY) -O srec $< $@ 2>/dev/null
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$(BIN):
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$(obj)%.bin: $(obj)%
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$(OBJCOPY) -O binary $< $@ 2>/dev/null
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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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