102 lines
4.1 KiB
C
102 lines
4.1 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
|
|
2011,2012,2013,2014 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @file SIMIA32/chcore.c
|
|
* @brief Simulator on IA32 port code.
|
|
*
|
|
* @addtogroup SIMIA32_GCC_CORE
|
|
* @{
|
|
*/
|
|
|
|
#include "ch.h"
|
|
|
|
/*===========================================================================*/
|
|
/* Module local definitions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module exported variables. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module local types. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module local variables. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module local functions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module exported functions. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* Performs a context switch between two threads.
|
|
* @param otp the thread to be switched out
|
|
* @param ntp the thread to be switched in
|
|
*/
|
|
__attribute__((used))
|
|
static void __dummy(thread_t *ntp, thread_t *otp) {
|
|
(void)ntp; (void)otp;
|
|
|
|
asm volatile (
|
|
#if defined(WIN32)
|
|
".globl @port_switch@8 \n\t"
|
|
"@port_switch@8:"
|
|
#elif defined(__APPLE__)
|
|
".globl _port_switch \n\t"
|
|
"_port_switch:"
|
|
#else
|
|
".globl port_switch \n\t"
|
|
"port_switch:"
|
|
#endif
|
|
"push %ebp \n\t"
|
|
"push %esi \n\t"
|
|
"push %edi \n\t"
|
|
"push %ebx \n\t"
|
|
"movl %esp, 12(%edx) \n\t"
|
|
"movl 12(%ecx), %esp \n\t"
|
|
"pop %ebx \n\t"
|
|
"pop %edi \n\t"
|
|
"pop %esi \n\t"
|
|
"pop %ebp \n\t"
|
|
"ret");
|
|
}
|
|
|
|
/**
|
|
* @brief Start a thread by invoking its work function.
|
|
* @details If the work function returns @p chThdExit() is automatically
|
|
* invoked.
|
|
*/
|
|
__attribute__((cdecl, noreturn))
|
|
void _port_thread_start(msg_t (*pf)(void *), void *p) {
|
|
|
|
chSysUnlock();
|
|
chThdExit(pf(p));
|
|
while(1);
|
|
}
|
|
|
|
/** @} */
|