C++ library function
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1711 42af7a65-404d-4744-a932-0658087f49c3
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79
libxx/Makefile
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libxx/Makefile
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############################################################################
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# libxx/Makefile
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#
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# Copyright (C) 2009 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name NuttX nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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###########################################################################
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-include $(TOPDIR)/Make.defs
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ASRCS =
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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CSRCS =
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COBJS = $(CSRCS:.c=$(OBJEXT))
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CXXSRCS = libxx_new.cxx libxx_delete.cxx
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CXXOBJS = $(CXXSRCS:.cxx=$(OBJEXT))
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SRCS = $(ASRCS) $(CSRCS) $(CXXSRCS)
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OBJS = $(AOBJS) $(COBJS) $(CXXOBJS)
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BIN = liblibxx$(LIBEXT)
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all: $(BIN)
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$(AOBJS): %$(OBJEXT): %.S
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$(call ASSEMBLE, $<, $@)
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$(COBJS): %$(OBJEXT): %.c
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$(call COMPILE, $<, $@)
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$(CXXOBJS): %$(OBJEXT): %.cxx
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$(call COMPILEXX, $<, $@)
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$(BIN): $(OBJS)
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@( for obj in $(OBJS) ; do \
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$(call ARCHIVE, $@, $${obj}); \
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done ; )
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.depend: Makefile $(SRCS)
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@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
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@touch $@
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depend: .depend
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clean:
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@rm -f $(BIN) *~ .*.swp
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$(call CLEAN)
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distclean: clean
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@rm -f Make.dep .depend
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-include Make.dep
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17
libxx/README.txt
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libxx/README.txt
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libxx/README.txt
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^^^^^^^^^^^^^^^^
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This directory contains a fragmentary C++ library that will allow
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to build only the simplest of C++ applications. In the deeply
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embedded world, that is probably all that is necessary. If you
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have a need for more extensive C++ support, the following libraries
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are recommended:
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- libstdc++ (part of GCC)
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- STLport http://www.stlport.org/
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- uClibc++ http://cxx.uclibc.org/
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At present, only the following are supported here:
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- void *operator new(std::size_t nbytes);
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- void operator delete(void* ptr);
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63
libxx/libxx_delete.cxx
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63
libxx/libxx_delete.cxx
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//***************************************************************************
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// libxx/libxx_new.cxx
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//
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// Copyright (C) 2009 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// 3. Neither the name NuttX nor the names of its contributors may be
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// used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//***************************************************************************
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//***************************************************************************
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// Included Files
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//***************************************************************************
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#include <nuttx/config.h>
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#include <cstdlib>
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#include <debug.h>
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//***************************************************************************
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// Definitions
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//***************************************************************************
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//***************************************************************************
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// Private Data
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//***************************************************************************
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//***************************************************************************
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// Operators
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//***************************************************************************
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//***************************************************************************
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// Name: delete
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//***************************************************************************
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void operator delete(void* ptr)
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{
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free(ptr);
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}
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93
libxx/libxx_new.cxx
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libxx/libxx_new.cxx
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//***************************************************************************
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// libxx/libxx_new.cxx
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//
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// Copyright (C) 2009 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// 3. Neither the name NuttX nor the names of its contributors may be
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// used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//***************************************************************************
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//***************************************************************************
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// Included Files
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//***************************************************************************
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#include <nuttx/config.h>
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#include <cstddef>
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#include <cstdlib>
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#include <debug.h>
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//***************************************************************************
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// Definitions
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//***************************************************************************
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//***************************************************************************
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// Private Data
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//***************************************************************************
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//***************************************************************************
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// Operators
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//***************************************************************************
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//***************************************************************************
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// Name: new
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//
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// NOTE:
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// This should take a type of size_t, which for ARM GCC is unsigned long.
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// but size_t may actually be a different different, in sys/include.h it
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// is typed as uint32. Need to REVISIT this.
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//***************************************************************************
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//void *operator new(size_t nbytes)
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void *operator new(unsigned long nbytes)
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{
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// We have to allocate something
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if (nbytes< 1)
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{
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nbytes = 1;
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}
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// Perform the allocation
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void *alloc = malloc(nbytes);
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#ifdef CONFIG_DEBUG
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if (alloc == 0)
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{
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// Oh my.. we are required to return a valid pointer and
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// we cannot throw an exception! We are bad.
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dbg("Failed to allocate\n");
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}
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#endif
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// Return the allocated value
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return alloc;
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}
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