nuttx/boards/risc-v/qemu-rv/rv-virt/kernel/Makefile

############################################################################
# boards/risc-v/qemu-rv/rv-virt/kernel/Makefile
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.  The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
# License for the specific language governing permissions and limitations
# under the License.
#
############################################################################

include $(TOPDIR)/Make.defs

# The entry point name (if none is provided in the .config file)

CONFIG_INIT_ENTRYPOINT ?= user_start
ENTRYPT = $(patsubst "%",%,$(CONFIG_INIT_ENTRYPOINT))


# Get the paths to the libraries and the links script path in format that
# is appropriate for the host OS

USER_LIBPATHS = $(addprefix -L,$(call CONVERT_PATH,$(addprefix $(TOPDIR)$(DELIM),$(dir $(USERLIBS)))))
USER_LDSCRIPT = $(call CONVERT_PATH,$(BOARD_DIR)$(DELIM)scripts$(DELIM)ld-userland.script)
USER_HEXFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.hex)
USER_SRECFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.srec)
USER_BINFILE += $(call CONVERT_PATH,$(TOPDIR)$(DELIM)nuttx_user.bin)

USER_LDFLAGS = --undefined=$(ENTRYPT) --entry=$(ENTRYPT) -T $(addsuffix .tmp,$(USER_LDSCRIPT))
USER_LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(USERLIBS))))
USER_LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}"

ifeq ($(CONFIG_ARCH_RV32),y)
  USER_LDFLAGS += --oformat elf32-littleriscv
else
  USER_LDFLAGS += --oformat elf64-littleriscv
endif

# Source files

CSRCS = rv_virt_userspace.c
COBJS = $(CSRCS:.c=$(OBJEXT))
OBJS  = $(COBJS)

# Targets:

all: $(TOPDIR)$(DELIM)nuttx_user $(TOPDIR)$(DELIM)User.map
.PHONY: nuttx_user depend clean distclean

$(COBJS): %$(OBJEXT): %.c
	$(call COMPILE, $<, $@)

$(addsuffix .tmp,$(USER_LDSCRIPT)): $(USER_LDSCRIPT)
	$(call PREPROCESS,$(patsubst %.tmp,%,$@),$@)

# Create the nuttx_user file containing all of the user-mode code

nuttx_user: $(OBJS) $(addsuffix .tmp,$(USER_LDSCRIPT))
	$(Q) $(LD) -o $@ $(USER_LDFLAGS) $(USER_LIBPATHS) $(OBJS) --start-group $(USER_LDLIBS) --end-group $(USER_LIBGCC)

$(TOPDIR)$(DELIM)nuttx_user: nuttx_user
	@echo "LD: nuttx_user"
	$(Q) cp -a $^ $(TOPDIR)$(DELIM)$^
ifeq ($(CONFIG_INTELHEX_BINARY),y)
	@echo "CP: nuttx_user.hex"
	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex $^ $(USER_HEXFILE)
endif
ifeq ($(CONFIG_MOTOROLA_SREC),y)
	@echo "CP: nuttx_user.srec"
	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec $^ $(USER_SRECFILE)
endif
ifeq ($(CONFIG_RAW_BINARY),y)
	@echo "CP: nuttx_user.bin"
	$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary $^ $(USER_BINFILE)
endif

$(TOPDIR)$(DELIM)User.map: nuttx_user
	@echo "MK: User.map"
	$(Q) $(NM) -n $^ >$(TOPDIR)$(DELIM)User.map

.depend:

depend: .depend

clean:
	$(call DELFILE, nuttx_user)
	$(call DELFILE, $(addsuffix .tmp,$(USER_LDSCRIPT)))
	$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
	$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
	$(call CLEAN)

distclean: clean