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/*
* Copyright (C) 2022 On-Line Applications Research Corporation (OAR)
* Written by Kinsey Moore <kinsey.moore@oarcorp.com>
*
* 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.
*
* 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.
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <machine/rtems-bsd-thread.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <stdio.h>
#include <rtems/extension.h>
#include <rtems/score/percpu.h>
#include <rtems/score/thread.h>
#include <rtems/sysinit.h>
static size_t rtems_bsd_extension_index;
static const rtems_extensions_table rtems_bsd_extensions = {};
/*
* This must only be run after the system has become multithreading such as in
* Init(). This must not be run as part of normal RTEMS initialization as part
* of a SYSINIT call.
*/
void rtems_bsd_compat_initialize(void)
{
rtems_id ext_id;
rtems_status_code sc;
sc = rtems_extension_create(
BSD_TASK_NAME,
&rtems_bsd_extensions,
&ext_id
);
if (sc != RTEMS_SUCCESSFUL) {
printf("%s: cannot create extension\n", __func__);
rtems_task_suspend(RTEMS_SELF);
rtems_fatal_error_occurred(0xdeadbeef);
}
rtems_bsd_extension_index = rtems_object_id_get_index(ext_id);
}
static struct rtems_bsd_program_control **
rtems_bsd_get_bsd_extension_ptr(void)
{
Thread_Control *executing = _Thread_Get_executing();
return ( struct rtems_bsd_program_control ** )&executing->extensions[rtems_bsd_extension_index];
}
struct rtems_bsd_program_control *
rtems_bsd_program_get_control_or_null(void)
{
return *rtems_bsd_get_bsd_extension_ptr();
}
int
rtems_bsd_program_set_control(struct rtems_bsd_program_control *prog_ctrl)
{
*rtems_bsd_get_bsd_extension_ptr() = prog_ctrl;
return 0;
}
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