# SPDX-License-Identifier: GPL-2.0+ # # Copyright (C) 2020 Alibaba Group Holding Limited # src := $(obj) # Create output directory if not already present _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) include $(srctree)/scripts/Kbuild.include -include include/config/auto.conf -include $(obj)/include/autoconf.mk KBUILD_CPPFLAGS += -DCONFIG_PPL_BUILD ifeq ($(obj)$(CONFIG_SUPPORT_PPL),ppl) $(error You cannot build PPL without enabling CONFIG_SUPPORT_PPL) endif include $(srctree)/config.mk include $(srctree)/arch/$(ARCH)/Makefile include $(srctree)/scripts/Makefile.lib # Enable garbage collection of un-used sections for SPL KBUILD_CFLAGS += -ffunction-sections -fdata-sections LDFLAGS_FINAL += --gc-sections # FIX ME cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ $(NOSTDINC_FLAGS) c_flags := $(KBUILD_CFLAGS) $(cpp_flags) HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ head-y := $(addprefix $(obj)/,$(head-y)) libs-y := $(addprefix $(obj)/,$(libs-y)) u-boot-ppl-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) u-boot-ppl-init := $(head-y) u-boot-ppl-main := $(libs-y) # Linker Script # First test whether there's a linker-script for the specific stage defined... ifneq ($(CONFIG_PPL_LDSCRIPT),) # need to strip off double quotes LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_PPL_LDSCRIPT:"%"=%)) endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-ppl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-ppl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot-ppl.lds endif ifeq ($(wildcard $(LDSCRIPT)),) $(error could not find linker script) endif # Special flags for CPP when processing the linker script. # Pass the version down so we can handle backwards compatibility # on the fly. LDPPFLAGS += \ -include $(srctree)/include/u-boot/u-boot.lds.h \ -include $(objtree)/include/config.h \ -DCPUDIR=$(CPUDIR) \ $(shell $(LD) --version | \ sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') # Turn various CONFIG symbols into IMAGE symbols for easy reuse of # the scripts between SPL and TPL. ifneq ($(CONFIG_PPL_MAX_SIZE),) LDPPFLAGS += -DIMAGE_MAX_SIZE=$(CONFIG_PPL_MAX_SIZE) endif ifneq ($(CONFIG_PPL_TEXT_BASE),) LDPPFLAGS += -DIMAGE_TEXT_BASE=$(CONFIG_PPL_TEXT_BASE) endif MKIMAGEOUTPUT ?= /dev/null quiet_cmd_mkimage = MKIMAGE $@ cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) ALL-y += $(obj)/u-boot-ppl.bin all: $(ALL-y) quiet_cmd_cat = CAT $@ cmd_cat = cat $(filter-out $(PHONY), $^) > $@ quiet_cmd_copy = COPY $@ cmd_copy = cp $< $@ $(obj)/u-boot-ppl.bin: $(obj)/u-boot-ppl-nodtb.bin FORCE $(call if_changed,copy) quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ OBJCOPYFLAGS_u-boot-ppl-nodtb.bin = $(PPL_OBJCFLAGS) -O binary $(obj)/u-boot-ppl-nodtb.bin: $(obj)/u-boot-ppl FORCE $(call if_changed,objcopy) LDFLAGS_u-boot-ppl += -T u-boot-ppl.lds $(LDFLAGS_FINAL) # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. LDFLAGS_u-boot-ppl += $(call ld-option, --no-dynamic-linker) # Pick the best-match (i.e. SPL_TEXT_BASE for SPL, TPL_TEXT_BASE for TPL) ifneq ($(CONFIG_PPL_TEXT_BASE),) LDFLAGS_u-boot-ppl += -Ttext $(CONFIG_PPL_TEXT_BASE) endif # Rule to link u-boot-ppl # May be overridden by arch/$(ARCH)/config.mk quiet_cmd_u-boot-ppl ?= LD $@ cmd_u-boot-ppl ?= (cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \ $(patsubst $(obj)/%,%,$(u-boot-ppl-init)) --start-group \ $(patsubst $(obj)/%,%,$(u-boot-ppl-main)) \ --end-group \ $(PLATFORM_LIBS) -Map u-boot-ppl.map -o u-boot-ppl) $(obj)/u-boot-ppl: $(u-boot-ppl-init) \ $(u-boot-ppl-main) $(obj)/u-boot-ppl.lds FORCE $(call if_changed,u-boot-ppl) $(sort $(u-boot-ppl-init) $(u-boot-ppl-main)): $(u-boot-ppl-dirs) ; PHONY += $(u-boot-ppl-dirs) $(u-boot-ppl-dirs): $(Q)$(MAKE) $(build)=$@ quiet_cmd_cpp_lds = LDS $@ cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< $(obj)/u-boot-ppl.lds: $(LDSCRIPT) FORCE $(call if_changed_dep,cpp_lds) # read all saved command lines targets := $(wildcard $(sort $(targets))) cmd_files := $(wildcard $(obj)/.*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) $(cmd_files): ; # Do not try to update included dependency files include $(cmd_files) endif PHONY += FORCE FORCE: # Declare the contents of the .PHONY variable as phony. We keep that # information in a variable so we can use it in if_changed and friends. .PHONY: $(PHONY)