58bdcbab9b
This reverts commit 45672c269d.
Because:
* It's very confusing to have cc as LD.
* I don't see what "-nostartfiles -nodefaultlibs" in LDFLAGS are
supposed to do when we use LD directly. It would be simpler to
remove them from our LDFLAGS.
104 lines
3.8 KiB
Makefile
104 lines
3.8 KiB
Makefile
############################################################################
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# boards/arm/stm32f7/stm32f769i-disco/kernel/Makefile
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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include $(TOPDIR)/Make.defs
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# The entry point name (if none is provided in the .config file)
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CONFIG_USER_ENTRYPOINT ?= user_start
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ENTRYPT = $(patsubst "%",%,$(CONFIG_USER_ENTRYPOINT))
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# Get the paths to the libraries and the links script path in format that
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# is appropriate for the host OS
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ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
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# Windows-native toolchains
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USER_LIBPATHS = ${shell for path in $(USERLIBS); do dir=`dirname $(TOPDIR)$(DELIM)$$path`;echo "-L\"`cygpath -w $$dir`\"";done}
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USER_LDSCRIPT = -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)memory.ld}"
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USER_LDSCRIPT += -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)user-space.ld}"
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USER_HEXFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.hex}"
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USER_SRECFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.srec}"
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USER_BINFILE += "${shell cygpath -w $(TOPDIR)$(DELIM)nuttx_user.bin}"
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else
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# Linux/Cygwin-native toolchain
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USER_LIBPATHS = $(addprefix -L$(TOPDIR)$(DELIM),$(dir $(USERLIBS)))
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USER_LDSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)memory.ld
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USER_LDSCRIPT += -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)user-space.ld
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USER_HEXFILE += "$(TOPDIR)$(DELIM)nuttx_user.hex"
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USER_SRECFILE += "$(TOPDIR)$(DELIM)nuttx_user.srec"
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USER_BINFILE += "$(TOPDIR)$(DELIM)nuttx_user.bin"
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endif
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USER_LDFLAGS = --undefined=$(ENTRYPT) --entry=$(ENTRYPT) $(USER_LDSCRIPT)
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USER_LDLIBS = $(patsubst lib%,-l%,$(basename $(notdir $(USERLIBS))))
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USER_LIBGCC = "${shell "$(CC)" $(ARCHCPUFLAGS) -print-libgcc-file-name}"
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# Source files
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CSRCS = stm32_userspace.c
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COBJS = $(CSRCS:.c=$(OBJEXT))
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OBJS = $(COBJS)
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# Targets:
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all: $(TOPDIR)$(DELIM)nuttx_user.elf $(TOPDIR)$(DELIM)User.map
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.PHONY: nuttx_user.elf depend clean distclean
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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# Create the nuttx_user.elf file containing all of the user-mode code
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nuttx_user.elf: $(OBJS)
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$(Q) $(LD) -o $@ $(USER_LDFLAGS) $(USER_LIBPATHS) $(OBJS) --start-group $(USER_LDLIBS) --end-group $(USER_LIBGCC)
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$(TOPDIR)$(DELIM)nuttx_user.elf: nuttx_user.elf
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@echo "LD: nuttx_user.elf"
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$(Q) cp -a nuttx_user.elf $(TOPDIR)$(DELIM)nuttx_user.elf
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ifeq ($(CONFIG_INTELHEX_BINARY),y)
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@echo "CP: nuttx_user.hex"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O ihex nuttx_user.elf $(USER_HEXFILE)
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endif
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ifeq ($(CONFIG_MOTOROLA_SREC),y)
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@echo "CP: nuttx_user.srec"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O srec nuttx_user.elf $(USER_SRECFILE)
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endif
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ifeq ($(CONFIG_RAW_BINARY),y)
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@echo "CP: nuttx_user.bin"
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$(Q) $(OBJCOPY) $(OBJCOPYARGS) -O binary nuttx_user.elf $(USER_BINFILE)
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endif
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$(TOPDIR)$(DELIM)User.map: nuttx_user.elf
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@echo "MK: User.map"
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$(Q) $(NM) nuttx_user.elf >$(TOPDIR)$(DELIM)User.map
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$(Q) $(CROSSDEV)size nuttx_user.elf
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.depend:
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depend: .depend
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clean:
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$(call DELFILE, nuttx_user.elf)
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$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
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$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
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$(call CLEAN)
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distclean: clean
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