154 lines
5.6 KiB
C
154 lines
5.6 KiB
C
/****************************************************************************
|
|
* apps/platform/sama5d3x-ek/src/sam_cxxinitialize.c
|
|
*
|
|
* Copyright (C) 2016 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/arch.h>
|
|
|
|
#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
/* Debug ********************************************************************/
|
|
/* Non-standard debug that may be enabled just for testing the static
|
|
* constructors.
|
|
*/
|
|
|
|
#ifndef CONFIG_DEBUG
|
|
# undef CONFIG_DEBUG_CXX
|
|
#endif
|
|
|
|
#ifdef CONFIG_DEBUG_CXX
|
|
# define cxxdbg dbg
|
|
# define cxxlldbg lldbg
|
|
# ifdef CONFIG_DEBUG_VERBOSE
|
|
# define cxxvdbg vdbg
|
|
# define cxxllvdbg llvdbg
|
|
# else
|
|
# define cxxvdbg(x...)
|
|
# define cxxllvdbg(x...)
|
|
# endif
|
|
#else
|
|
# define cxxdbg(x...)
|
|
# define cxxlldbg(x...)
|
|
# define cxxvdbg(x...)
|
|
# define cxxllvdbg(x...)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
/* This type defines one entry in initialization array */
|
|
|
|
typedef void (*initializer_t)(void);
|
|
|
|
/****************************************************************************
|
|
* External References
|
|
****************************************************************************/
|
|
/* _sinit and _einit are symbols exported by the linker script that mark the
|
|
* beginning and the end of the C++ initialization section.
|
|
*/
|
|
|
|
extern initializer_t _sinit;
|
|
extern initializer_t _einit;
|
|
|
|
/* _stext and _etext are symbols exported by the linker script that mark the
|
|
* beginning and the end of text.
|
|
*/
|
|
|
|
extern uint32_t _stext;
|
|
extern uint32_t _etext;
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: up_cxxinitialize
|
|
*
|
|
* Description:
|
|
* If C++ and C++ static constructors are supported, then this function
|
|
* must be provided by board-specific logic in order to perform
|
|
* initialization of the static C++ class instances.
|
|
*
|
|
* This function should then be called in the application-specific
|
|
* user_start logic in order to perform the C++ initialization. NOTE
|
|
* that no component of the core NuttX RTOS logic is involved; this
|
|
* function definition only provides the 'contract' between application
|
|
* specific C++ code and platform-specific toolchain support.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void up_cxxinitialize(void)
|
|
{
|
|
initializer_t *initp;
|
|
|
|
cxxdbg("_sinit: %p _einit: %p _stext: %p _etext: %p\n",
|
|
&_sinit, &_einit, &_stext, &_etext);
|
|
|
|
/* Visit each entry in the initialization table */
|
|
|
|
for (initp = &_sinit; initp != &_einit; initp++)
|
|
{
|
|
initializer_t initializer = *initp;
|
|
cxxdbg("initp: %p initializer: %p\n", initp, initializer);
|
|
|
|
/* Make sure that the address is non-NULL and lies in the text region
|
|
* defined by the linker script. Some toolchains may put NULL values
|
|
* or counts in the initialization table.
|
|
*/
|
|
|
|
if ((void *)initializer > (void *)&_stext &&
|
|
(void *)initializer < (void *)&_etext)
|
|
{
|
|
cxxdbg("Calling %p\n", initializer);
|
|
initializer();
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* CONFIG_HAVE_CXX && CONFIG_HAVE_CXXINITIALIZE */
|