Browse Source
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5292 42af7a65-404d-4744-a932-0658087f49c3sbg
patacongo
12 years ago
11 changed files with 263 additions and 29 deletions
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//***************************************************************************
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// libxx/libxx_eabi_atexit.cxx
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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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// 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 <cassert> |
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#include "libxx_internal.hxx" |
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//***************************************************************************
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// Pre-processor Definitions
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//***************************************************************************
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//***************************************************************************
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// Private Types
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//***************************************************************************
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struct __cxa_atexit_s |
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{ |
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__cxa_exitfunc_t func; |
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FAR void *arg; |
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}; |
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//***************************************************************************
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// Private Data
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//***************************************************************************
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extern "C" |
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{ |
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//*************************************************************************
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// Public Data
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//*************************************************************************
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FAR void *__dso_handle = NULL; |
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//*************************************************************************
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// Private Functions
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//*************************************************************************
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//*************************************************************************
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// Name: __cxa_callback
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//
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// Description:
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// This is really just an "adaptor" function that matches the form of
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// the __cxa_exitfunc_t to an onexitfunc_t using an allocated structure
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// to marshall the call parameters.
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//
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//*************************************************************************
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#if CONFIG_SCHED_ONEXIT |
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static void __cxa_callback(int exitcode, FAR void *arg) |
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{ |
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FAR struct __cxa_atexit_s *alloc = (FAR struct __cxa_atexit_s *)arg; |
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DEBUGASSERT(alloc && alloc->func); |
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alloc->func(alloc->arg); |
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free(alloc); |
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} |
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#endif |
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//*************************************************************************
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// Public Functions
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//*************************************************************************
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//*************************************************************************
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// Name: __cxa_atexit
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//
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// Description:
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// __cxa_atexit() registers a destructor function to be called by exit().
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// On a call to exit(), the registered functions should be called with
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// the single argument 'arg'. Destructor functions shall always be
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// called in the reverse order to their registration (i.e. the most
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// recently registered function shall be called first),
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//
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// If shared libraries were supported, the callbacks should be invoked
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// when the shared library is unloaded as well.
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//
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// Reference:
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// Linux base
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//
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//*************************************************************************
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int __cxa_atexit(__cxa_exitfunc_t func, FAR void *arg, FAR void *dso_handle) |
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{ |
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#if CONFIG_SCHED_ONEXIT |
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// Allocate memory to hold the marshaled __cxa_exitfunc_t call
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// information.
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FAR struct __cxa_atexit_s *alloc = |
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(FAR struct __cxa_atexit_s *)malloc(sizeof(struct __cxa_atexit_s)); |
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if (alloc) |
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{ |
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// Register the function to be called when the task/thread exists.
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return on_exit(__cxa_callback, alloc); |
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} |
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else |
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#endif |
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{ |
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// What else can we do?
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return 0; |
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} |
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} |
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} |
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@ -0,0 +1,67 @@
@@ -0,0 +1,67 @@
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//***************************************************************************
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// lib/libxx_internal.h
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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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#ifndef __LIBXX_LIBXX_INTERNAL_HXX |
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#define __LIBXX_LIBXX_INTERNAL_HXX |
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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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//***************************************************************************
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// Definitions
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//***************************************************************************
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//***************************************************************************
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// Public Types
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//***************************************************************************/
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typedef CODE void (*__cxa_exitfunc_t)(void *arg); |
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//***************************************************************************
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// Public Variables
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//***************************************************************************
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extern "C" FAR void *__dso_handle; |
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//***************************************************************************
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// Public Function Prototypes
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//***************************************************************************
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extern "C" int __cxa_atexit(__cxa_exitfunc_t func, void *arg, void *dso_handle); |
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#endif // __LIBXX_LIBXX_INTERNAL_HXX
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