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The two helper scripts this Makefile names gained a file extension when tools/fdpic came into the nuttx tree: checkpatch rejects an executable file that is not .sh, .py or .bat. Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com>
205 lines
7.3 KiB
Makefile
205 lines
7.3 KiB
Makefile
############################################################################
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# apps/examples/fdpicxip/modules/Makefile
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#
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# SPDX-License-Identifier: Apache-2.0
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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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# The FDPIC modules that examples/fdpicxip and testing/fs/xipfs carry inside
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# their images, and the sources they are built from.
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#
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# This is NOT part of the application build. Nothing here runs unless it is
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# asked for: the *_bin.h headers are committed, so both apps build with a
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# plain toolchain and CI covers them, while the link needs
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# arm-uclinuxfdpiceabi binutils, which the tree does not require. See
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# nuttx/tools/fdpic/README.md and Documentation/components/fdpic.rst.
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#
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# To rebuild the headers from these sources:
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#
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# make -C apps/examples/fdpicxip/modules regen NUTTX_DIR=/path/to/nuttx
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#
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# NUTTX_DIR must be a configured, built tree with CONFIG_FDPIC and a system
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# symbol table: the compile needs its headers and the verify step needs
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# libs/libc/exec_symtab.c.
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#
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# CPU is cortex-m3 rather than the toolchain default, deliberately. A v7-M
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# module runs on both the v7-M and v8-M targets, so one set of blobs serves
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# the RP2350 (Cortex-M33) and mps2-an500 (Cortex-M7) alike. Building for
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# cortex-m33 produces blobs the M7 cannot execute at all.
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CPU ?= cortex-m3
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FDPICDIR = $(NUTTX_DIR)/tools/fdpic
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MODULE_MK = $(FDPICDIR)/nuttx-fdpic.mk
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EMBED = $(FDPICDIR)/fdpic-embed.py
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# Where each generated header goes, and its path from the repository root --
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# fdpic-embed.py puts that on line 2, which is what nxstyle wants.
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DEMODIR = ..
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DEMOREL = apps/examples/fdpicxip
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TESTDIR = ../../../testing/fs/xipfs
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TESTREL = apps/testing/fs/xipfs
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BUILD = $(MAKE) -f $(MODULE_MK) NUTTX_DIR=$(NUTTX_DIR) CPU=$(CPU)
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# manyneeded needs one library per DT_NEEDED entry, one more than the loader
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# will follow. They exist only to make the linker record nine entries; the
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# module is refused while its dynamic section is parsed, before any of them
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# would be loaded, so none of them is embedded.
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NEEDLIBS := $(foreach n,0 1 2 3 4 5 6 7 8,need$(n).so)
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DEMO_HDRS = $(DEMODIR)/qsorter_bin.h $(DEMODIR)/libcounter_bin.h \
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$(DEMODIR)/user_bin.h $(DEMODIR)/libshape_bin.h \
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$(DEMODIR)/cxxuser_bin.h $(DEMODIR)/lazymod_bin.h
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TEST_HDRS = $(TESTDIR)/callback_bin.h $(TESTDIR)/counteruser_bin.h \
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$(TESTDIR)/cxxuser_bin.h $(TESTDIR)/funcdesc_bin.h \
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$(TESTDIR)/lazymod_bin.h $(TESTDIR)/libcounter_bin.h \
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$(TESTDIR)/libshape_bin.h $(TESTDIR)/manyneeded_bin.h \
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$(TESTDIR)/missingsym_bin.h
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.PHONY: all regen check-nuttx-dir clean
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all:
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@echo "Nothing to do: the *_bin.h headers are committed."
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@echo "To rebuild them: make regen NUTTX_DIR=/path/to/nuttx"
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regen: check-nuttx-dir $(DEMO_HDRS) $(TEST_HDRS)
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@echo "Regenerated the embedded modules for $(DEMOREL) and $(TESTREL)."
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check-nuttx-dir:
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ifeq ($(NUTTX_DIR),)
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$(error Set NUTTX_DIR to a configured, built NuttX tree)
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endif
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# The modules. Libraries have no entry point and are named by their SONAME,
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# which is what a consumer records in DT_NEEDED and what the loader searches
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# for at run time.
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qsorter.fdpic: qsorter.c
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$(BUILD) MODULE=qsorter SRCS=qsorter.c
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callback.fdpic: callback.c
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$(BUILD) MODULE=callback SRCS=callback.c
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funcdesc.fdpic: funcdesc.c
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$(BUILD) MODULE=funcdesc SRCS=funcdesc.c
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libcounter.so: libcounter.c
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$(BUILD) MODULE=libcounter SRCS=libcounter.c ENTRY=0 \
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EXTRA_LDFLAGS="-soname libcounter.so"
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mv libcounter.fdpic libcounter.so
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user.fdpic: user.c libcounter.so
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$(BUILD) MODULE=user SRCS=user.c LIBS=libcounter.so
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# C++ compiles with the stock arm-none-eabi-g++; only the link is FDPIC.
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libshape.so: libshape.cpp
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$(BUILD) MODULE=libshape CXXSRCS=libshape.cpp ENTRY=0 \
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EXTRA_LDFLAGS="-soname libshape.so"
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mv libshape.fdpic libshape.so
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cxxuser.fdpic: cxxuser.cpp libshape.so
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$(BUILD) MODULE=cxxuser CXXSRCS=cxxuser.cpp LIBS=libshape.so
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# BINDNOW is emptied so the imported descriptors stay in the lazy binding
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# table, which is the case this module exists to cover.
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lazymod.fdpic: lazymod.c
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$(BUILD) MODULE=lazymod SRCS=lazymod.c BINDNOW=
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# missingsym is linked with the bare .fdpic target rather than the default
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# 'verify' one, because it is exactly what fdpic-verify.sh is meant to catch.
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missingsym.fdpic: missingsym.c
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$(BUILD) MODULE=missingsym SRCS=missingsym.c missingsym.fdpic
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need%.so:
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echo "int need_leaf_$*(void){return $*;}" > need$*.c
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$(BUILD) MODULE=need$* SRCS=need$*.c ENTRY=0 \
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EXTRA_LDFLAGS="-soname need$*.so"
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mv need$*.fdpic need$*.so
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manyneeded.c: $(NEEDLIBS)
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{ for n in 0 1 2 3 4 5 6 7 8; do \
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echo "extern int need_leaf_$$n(void);"; done; \
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echo "int main(int argc, char *argv[]) {"; \
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echo " return need_leaf_0() + need_leaf_1() + need_leaf_2() +"; \
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echo " need_leaf_3() + need_leaf_4() + need_leaf_5() +"; \
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echo " need_leaf_6() + need_leaf_7() + need_leaf_8();"; \
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echo "}"; } > manyneeded.c
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manyneeded.fdpic: manyneeded.c $(NEEDLIBS)
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$(BUILD) MODULE=manyneeded SRCS=manyneeded.c LIBS="$(NEEDLIBS)" \
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manyneeded.fdpic
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# The headers. One artifact can be embedded under more than one name: the
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# demo's user_bin.h and the suite's counteruser_bin.h are the same module.
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$(DEMODIR)/qsorter_bin.h: qsorter.fdpic
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$(EMBED) $< g_qsorter_nxf $(DEMOREL)/$(@F) > $@
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$(DEMODIR)/libcounter_bin.h: libcounter.so
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$(EMBED) $< g_libcounter $(DEMOREL)/$(@F) > $@
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$(DEMODIR)/user_bin.h: user.fdpic
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$(EMBED) $< g_user $(DEMOREL)/$(@F) > $@
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$(DEMODIR)/libshape_bin.h: libshape.so
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$(EMBED) $< g_libshape $(DEMOREL)/$(@F) > $@
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$(DEMODIR)/cxxuser_bin.h: cxxuser.fdpic
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$(EMBED) $< g_cxxuser $(DEMOREL)/$(@F) > $@
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$(DEMODIR)/lazymod_bin.h: lazymod.fdpic
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$(EMBED) $< g_lazymod $(DEMOREL)/$(@F) > $@
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$(TESTDIR)/callback_bin.h: callback.fdpic
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$(EMBED) $< g_callback $(TESTREL)/$(@F) > $@
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$(TESTDIR)/counteruser_bin.h: user.fdpic
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$(EMBED) $< g_counteruser $(TESTREL)/$(@F) > $@
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$(TESTDIR)/cxxuser_bin.h: cxxuser.fdpic
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$(EMBED) $< g_cxxuser $(TESTREL)/$(@F) > $@
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$(TESTDIR)/funcdesc_bin.h: funcdesc.fdpic
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$(EMBED) $< g_funcdesc $(TESTREL)/$(@F) > $@
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$(TESTDIR)/lazymod_bin.h: lazymod.fdpic
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$(EMBED) $< g_lazymod $(TESTREL)/$(@F) > $@
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$(TESTDIR)/libcounter_bin.h: libcounter.so
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$(EMBED) $< g_libcounter $(TESTREL)/$(@F) > $@
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$(TESTDIR)/libshape_bin.h: libshape.so
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$(EMBED) $< g_libshape $(TESTREL)/$(@F) > $@
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$(TESTDIR)/manyneeded_bin.h: manyneeded.fdpic
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$(EMBED) $< g_manyneeded $(TESTREL)/$(@F) > $@
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$(TESTDIR)/missingsym_bin.h: missingsym.fdpic
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$(EMBED) $< g_missingsym $(TESTREL)/$(@F) > $@
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# No NUTTX_DIR needed to clean.
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clean:
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$(Q) rm -f *.o *.fdpic *.so .nuttx-exports need*.c manyneeded.c
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