GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/examples/standalone/Makefile

@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+
+extra-y        := hello_world
+extra-$(CONFIG_SMC91111)           += smc91111_eeprom
+extra-$(CONFIG_SMC911X)            += smc911x_eeprom
+extra-$(CONFIG_SPI_FLASH_ATMEL)    += atmel_df_pow2
+extra-$(CONFIG_PPC)                += sched
+
+#
+# Some versions of make do not handle trailing white spaces properly;
+# leading to build failures. The problem was found with GNU Make 3.80.
+# Using 'strip' as a workaround for the problem.
+#
+ELF := $(strip $(extra-y))
+
+extra-y += $(addsuffix .srec,$(extra-y)) $(addsuffix .bin,$(extra-y))
+clean-files  := *.srec *.bin
+
+COBJS	:= $(ELF:=.o)
+
+LIB	= $(obj)/libstubs.o
+
+LIBOBJS-$(CONFIG_PPC) += ppc_longjmp.o ppc_setjmp.o
+LIBOBJS-y += stubs.o
+
+targets += $(patsubst $(obj)/%,%,$(LIB)) $(COBJS) $(LIBOBJS-y)
+
+LIBOBJS	:= $(addprefix $(obj)/,$(LIBOBJS-y))
+ELF	:= $(addprefix $(obj)/,$(ELF))
+
+# For PowerPC there's no need to compile standalone applications as a
+# relocatable executable.  The relocation data is not needed, and
+# also causes the entry point of the standalone application to be
+# inconsistent.
+ifeq ($(CONFIG_PPC),y)
+PLATFORM_CPPFLAGS := $(filter-out $(RELFLAGS),$(PLATFORM_CPPFLAGS))
+endif
+
+# We don't want gcc reordering functions if possible.  This ensures that an
+# application's entry point will be the first function in the application's
+# source file.
+ccflags-y += $(call cc-option,-fno-toplevel-reorder)
+
+LDFLAGS_STANDALONE	+= -Ttext $(CONFIG_STANDALONE_LOAD_ADDR)
+
+#########################################################################
+
+quiet_cmd_link_lib = LD      $@
+      cmd_link_lib = $(LD) $(ld_flags) -r -o $@ $(filter $(LIBOBJS), $^)
+
+$(LIB):	$(LIBOBJS) FORCE
+	$(call if_changed,link_lib)
+
+quiet_cmd_link_elf = LD      $@
+      cmd_link_elf = $(LD) $(LDFLAGS) $(LDFLAGS_STANDALONE) -g  \
+		     -o $@ -e $(SYM_PREFIX)$(@F) $< $(LIB) $(PLATFORM_LIBGCC)
+
+$(ELF): $(obj)/%: $(obj)/%.o $(LIB) FORCE
+	$(call if_changed,link_elf)
+
+$(obj)/%.srec: OBJCOPYFLAGS += -O srec
+$(obj)/%.srec: $(obj)/% FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/%.bin: OBJCOPYFLAGS += -O binary
+$(obj)/%.bin: $(obj)/% FORCE
+	$(call if_changed,objcopy)
+
+# some files can only build in ARM or THUMB2, not THUMB1
+
+ifdef CONFIG_SYS_THUMB_BUILD
+ifndef CONFIG_HAS_THUMB2
+
+CFLAGS_stubs.o := -marm
+
+endif
+endif