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# 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)
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