Finish implemention of ELF loader static constructor support. Still some issues.
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5272 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
parent
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@ -323,6 +323,8 @@ examples/elf
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CELFFLAGS = $(CFLAGS) -mlong-calls
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Similarly for C++ flags which must be provided in CXXELFFLAGS.
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2. Your top-level nuttx/Make.defs file must alos include an approproate definition,
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LDELFFLAGS, to generate a relocatable ELF object. With GNU LD, this should
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include '-r' and '-e main' (or _main on some platforms).
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@ -33,13 +33,15 @@
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#
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############################################################################
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# Most of these do no build yet
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-include $(TOPDIR)/.config
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-include $(TOPDIR)/Make.defs
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include $(APPDIR)/Make.defs
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ALL_SUBDIRS = errno hello hello++ longjmp mutex pthread signal task struct
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ALL_SUBDIRS = errno hello helloxx longjmp mutex pthread signal task struct
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BUILD_SUBDIRS = errno hello task struct
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ifeq ($(CONFIG_HAVE_CXX),y)
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BUILD_SUBDIRS += hello++
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BUILD_SUBDIRS += helloxx
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endif
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ifeq ($(CONFIG_EXAMPLES_ELF_LONGJMP),y)
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@ -1,116 +0,0 @@
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############################################################################
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# examples/elf/tests/hello/Makefile
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#
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# Copyright (C) 2012 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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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
|
||||
# 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)/.config
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-include $(TOPDIR)/Make.defs
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BIN1 = hello++1
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BIN2 = hello++2
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BIN3 = hello++3
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#BIN4 = hello++4
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ALL_BIN = $(BIN1) $(BIN2) $(BIN3) $(BIN4)
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SRCS1 = $(BIN1).c
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OBJS1 = $(SRCS1:.c=.o)
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SRCS2 = $(BIN2).c
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OBJS2 = $(SRCS2:.c=.o)
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SRCS3 = $(BIN3).c
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OBJS3 = $(SRCS3:.c=.o)
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#SRCS4 = $(BIN4).c
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#OBJS4 = $(SRCS4:.c=.o)
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SRCS = $(SRCS1) $(SRCS2) $(SRCS3) $(SRCS4)
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OBJS = $(OBJS1) $(OBJS2) $(OBJS3) $(OBJS4)
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LIBSTDC_STUBS_DIR = $(TOPDIR)/libxx
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LIBSTDC_STUBS_LIB = $(LIBSTDC_STUBS_DIR)/liblibxx.a
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all: $(BIN1) $(BIN2) $(BIN3) $(BIN4)
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$(OBJS): %.o: %.cpp
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@echo "CC: $<"
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@$(CXX) -c $(CXXFLAGS) $< -o $@
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# This contains libstdc++ stubs to that you can build C++ code
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# without actually having libstdc++
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$(LIBSTDC_STUBS_LIB):
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@$(MAKE) -C $(LIBSTDC_STUBS_DIR) TOPDIR=$(TOPDIR)
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# BIN1 and BIN2 link just like C code because they contain no
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# static constructors. BIN1 is equivalent to a C hello world;
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# BIN2 contains a class that implements hello world, but it is
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# not statically initialized.
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$(BIN1): $(OBJS1)
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@echo "LD: $<"
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@$(LD) $(LDELFFLAGS) -o $@ $^
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$(BIN2): $(OBJS2)
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@echo "LD: $<"
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@$(LD) $(LDELFFLAGS) -o $@ $^
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# BIN3 is equivalent to BIN2 except that is uses static initializers
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$(BIN3): $(OBJS3)
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@echo "LD: $<"
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@$(LD) $(LDELFFLAGS) -o $@ $^
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# BIN4 is similar to BIN3 except that it uses the streams code from libstdc++
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#
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# NOTE: libstdc++ is not available for NuttX as of this writing
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#
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#$(BIN4): $(OBJS4)
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# @echo "LD: $<"
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# @$(LD) $(LDELFFLAGS) -o $@ $^
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clean:
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@rm -f $(ALL_BIN) *.o *~ .*.swp core
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install: $(ALL_BIN)
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@install -D $(BIN1) $(ROMFS_DIR)/$(BIN1)
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@install -D $(BIN2) $(ROMFS_DIR)/$(BIN2)
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@install -D $(BIN3) $(ROMFS_DIR)/$(BIN3)
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# @install -D $(BIN4) $(ROMFS_DIR)/$(BIN4)
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@ -1,60 +0,0 @@
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/////////////////////////////////////////////////////////////////////////////
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// examples/elf/tests/hello++/hello++1.c
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//
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// Copyright (C) 2012 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <gnutt@nuttx.org>
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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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// This is an trivial version of "Hello, World" program. It illustrates
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// that we can build C programs using the C++ compiler.
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//
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// - Building a C++ program to use the C library
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// - No class creation
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// - NO Streams
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// - NO Static constructor and destructors
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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 <cstdio>
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/////////////////////////////////////////////////////////////////////////////
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// Public Functions
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/////////////////////////////////////////////////////////////////////////////
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int main(int argc, char **argv)
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{
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printf("Hello, World!\n");
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return 0;
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}
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@ -1,123 +0,0 @@
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/////////////////////////////////////////////////////////////////////////////
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// examples/elf/tests/hello++/hello++2.c
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//
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// Copyright (C) 2012 Gregory Nutt. All rights reserved.
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// Author: Gregory Nutt <gnutt@nuttx.org>
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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
|
||||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
// 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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// This is an another trivial version of "Hello, World" design. It illustrates
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//
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// - Building a C++ program to use the C library
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// - Basic class creation
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// - NO Streams
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// - NO Static constructor and destructors
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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 <cstdio>
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/////////////////////////////////////////////////////////////////////////////
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// Classes
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/////////////////////////////////////////////////////////////////////////////
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class CThingSayer
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{
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const char *szWhatToSay;
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public:
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CThingSayer(void)
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{
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printf("CThingSayer::CThingSayer: I am!\n");
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szWhatToSay = (const char*)NULL;
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}
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~CThingSayer(void)
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{
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printf("CThingSayer::~CThingSayer: I cease to be\n");
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if (szWhatToSay)
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{
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printf("CThingSayer::~CThingSayer: I will never say '%s' again\n",
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szWhatToSay);
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}
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szWhatToSay = (const char*)NULL;
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}
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void Initialize(const char *czSayThis)
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{
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printf("CThingSayer::Initialize: When told, I will say '%s'\n",
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czSayThis);
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szWhatToSay = czSayThis;
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}
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void SayThing(void)
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{
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printf("CThingSayer::SayThing: I am now saying '%s'\n", szWhatToSay);
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}
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};
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/////////////////////////////////////////////////////////////////////////////
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// Public Functions
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/////////////////////////////////////////////////////////////////////////////
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int main(int argc, char **argv)
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{
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CThingSayer *MyThingSayer;
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printf("main: Started. Creating MyThingSayer\n");
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// Create an instance of the CThingSayer class
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// We should see the message from constructor, CThingSayer::CThingSayer(),
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MyThingSayer = new CThingSayer;
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printf("main: Created MyThingSayer=0x%08lx\n", (long)MyThingSayer);
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// Tell MyThingSayer that "Hello, World!" is the string to be said
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printf("main: Calling MyThingSayer->Initialize\n");;
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MyThingSayer->Initialize("Hello, World!");
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// Tell MyThingSayer to say the thing we told it to say
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printf("main: Calling MyThingSayer->SayThing\n");;
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MyThingSayer->SayThing();
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// We should see the message from the destructor,
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// CThingSayer::~CThingSayer(), AFTER we see the following
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printf("main: Destroying MyThingSayer\n");
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delete MyThingSayer;
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printf("main: Returning\n");;
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return 0;
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}
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@ -1,132 +0,0 @@
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/////////////////////////////////////////////////////////////////////////////
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// examples/elf/tests/hello++/hello++3.c
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//
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// Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
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// Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions
|
||||
// are met:
|
||||
//
|
||||
// 1. Redistributions of source code must retain the above copyright
|
||||
// notice, this list of conditions and the following disclaimer.
|
||||
// 2. Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in
|
||||
// the documentation and/or other materials provided with the
|
||||
// distribution.
|
||||
// 3. Neither the name NuttX nor the names of its contributors may be
|
||||
// used to endorse or promote products derived from this software
|
||||
// without specific prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
// POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// This is an another trivial version of "Hello, World" design. It illustrates
|
||||
//
|
||||
// - Building a C++ program to use the C library and stdio
|
||||
// - Basic class creation with virtual methods.
|
||||
// - Static constructor and destructors (in main program only)
|
||||
// - NO Streams
|
||||
//
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Included Files
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
#include <cstdio>
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Classes
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||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
class CThingSayer
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{
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const char *szWhatToSay;
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public:
|
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CThingSayer(void);
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virtual ~CThingSayer(void);
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virtual void Initialize(const char *czSayThis);
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virtual void SayThing(void);
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};
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||||
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// A static instance of the CThingSayer class. This instance MUST
|
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// be constructed by the system BEFORE the program is started at
|
||||
// main() and must be destructed by the system AFTER the main()
|
||||
// returns to the system
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||||
|
||||
static CThingSayer MyThingSayer;
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||||
// These are implementations of the methods of the CThingSayer class
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CThingSayer::CThingSayer(void)
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{
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||||
printf("CThingSayer::CThingSayer: I am!\n");
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szWhatToSay = (const char*)NULL;
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||||
}
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||||
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||||
CThingSayer::~CThingSayer(void)
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||||
{
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||||
printf("CThingSayer::~CThingSayer: I cease to be\n");
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||||
if (szWhatToSay)
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||||
{
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||||
printf("CThingSayer::~CThingSayer: I will never say '%s' again\n",
|
||||
szWhatToSay);
|
||||
}
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||||
szWhatToSay = (const char*)NULL;
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||||
}
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||||
|
||||
void CThingSayer::Initialize(const char *czSayThis)
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||||
{
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||||
printf("CThingSayer::Initialize: When told, I will say '%s'\n",
|
||||
czSayThis);
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||||
szWhatToSay = czSayThis;
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||||
}
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||||
|
||||
void CThingSayer::SayThing(void)
|
||||
{
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||||
printf("CThingSayer::SayThing: I am now saying '%s'\n", szWhatToSay);
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Public Functions
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
int main(int argc, char **argv)
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||||
{
|
||||
// We should see the message from constructor, CThingSayer::CThingSayer(),
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||||
// BEFORE we see the following messages. That is proof that the
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||||
// C++ static initializer is working
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||||
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||||
printf("main: Started. MyThingSayer should already exist\n");
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||||
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||||
// Tell MyThingSayer that "Hello, World!" is the string to be said
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||||
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||||
printf("main: Calling MyThingSayer.Initialize\n");;
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MyThingSayer.Initialize("Hello, World!");
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||||
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||||
// Tell MyThingSayer to say the thing we told it to say
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||||
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||||
printf("main: Calling MyThingSayer.SayThing\n");;
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||||
MyThingSayer.SayThing();
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||||
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||||
// We are finished, return. We should see the message from the
|
||||
// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
|
||||
// message. That is proof that the C++ static destructor logic
|
||||
// is working
|
||||
|
||||
printf("main: Returning. MyThingSayer should be destroyed\n");;
|
||||
return 0;
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||||
}
|
@ -1,150 +0,0 @@
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// examples/elf/tests/hello++/hello++4.c
|
||||
//
|
||||
// Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
// Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions
|
||||
// are met:
|
||||
//
|
||||
// 1. Redistributions of source code must retain the above copyright
|
||||
// notice, this list of conditions and the following disclaimer.
|
||||
// 2. Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in
|
||||
// the documentation and/or other materials provided with the
|
||||
// distribution.
|
||||
// 3. Neither the name NuttX nor the names of its contributors may be
|
||||
// used to endorse or promote products derived from this software
|
||||
// without specific prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
// POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// This is an excessively complex version of "Hello, World" design to
|
||||
// illustrate some basic properties of C++:
|
||||
//
|
||||
// - Building a C++ program
|
||||
// - Streams / statically linked libstdc++
|
||||
// - Static constructor and destructors (in main program only)
|
||||
//
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Included Files
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
#include <cstdio>
|
||||
#include <iostream>
|
||||
|
||||
#ifndef NULL
|
||||
# define NULL ((void*)0L)
|
||||
#endif
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Classes
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
using namespace std;
|
||||
|
||||
// A hello world sayer class
|
||||
|
||||
class CThingSayer
|
||||
{
|
||||
const char *szWhatToSay;
|
||||
public:
|
||||
CThingSayer(void);
|
||||
virtual ~CThingSayer(void);
|
||||
virtual void Initialize(const char *czSayThis);
|
||||
virtual void SayThing(void);
|
||||
};
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Private Data
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// A static instance of the CThingSayer class. This instance MUST
|
||||
// be constructed by the system BEFORE the program is started at
|
||||
// main() and must be destructed by the system AFTER the main()
|
||||
// returns to the system
|
||||
|
||||
static CThingSayer MyThingSayer;
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Method Implementations
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// These are implementations of the methods of the CThingSayer class
|
||||
|
||||
CThingSayer::CThingSayer(void)
|
||||
{
|
||||
cout << "CThingSayer::CThingSayer: I am!" << endl;
|
||||
szWhatToSay = (const char*)NULL;
|
||||
}
|
||||
|
||||
CThingSayer::~CThingSayer(void)
|
||||
{
|
||||
cout << "CThingSayer::~CThingSayer: I cease to be" << endl;
|
||||
if (szWhatToSay)
|
||||
{
|
||||
cout << "CThingSayer::~CThingSayer: I will never say '"
|
||||
<< szWhatToSay << "' again" << endl;
|
||||
}
|
||||
szWhatToSay = (const char*)NULL;
|
||||
}
|
||||
|
||||
void CThingSayer::Initialize(const char *czSayThis)
|
||||
{
|
||||
cout << "CThingSayer::Initialize: When told, I will say '"
|
||||
<< czSayThis << "'" << endl;
|
||||
szWhatToSay = czSayThis;
|
||||
}
|
||||
|
||||
void CThingSayer::SayThing(void)
|
||||
{
|
||||
cout << "CThingSayer::SayThing: I am now saying '"
|
||||
<< szWhatToSay << "'" << endl;
|
||||
}
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
// Public Functions
|
||||
/////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
// We should see the message from constructor, CThingSayer::CThingSayer(),
|
||||
// BEFORE we see the following messages. That is proof that the
|
||||
// C++ static initializer is working
|
||||
|
||||
cout << "main: Started" << endl;
|
||||
|
||||
// Tell MyThingSayer that "Hello, World!" is the string to be said
|
||||
|
||||
cout << "main: Calling MyThingSayer.Initialize" << endl;
|
||||
MyThingSayer.Initialize("Hello, World!");
|
||||
|
||||
// Tell MyThingSayer to say the thing we told it to say
|
||||
|
||||
cout << "main: Calling MyThingSayer.SayThing" << endl;
|
||||
MyThingSayer.SayThing();
|
||||
|
||||
// We are finished, return. We should see the message from the
|
||||
// destructor, CThingSayer::~CThingSayer(), AFTER we see the following
|
||||
// message. That is proof that the C++ static destructor logic
|
||||
// is working
|
||||
|
||||
cout << "main: Returning" << endl;
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue
Block a user