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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 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 ARM/chcoreasm.s
* @brief ARM7/9 architecture port low level code.
*
* @addtogroup ARM_CORE
* @{
*/
#include "chconf.h"
#include "chcore.h"
#if !defined(FALSE) || defined(__DOXYGEN__)
#define FALSE 0
#endif
#if !defined(TRUE) || defined(__DOXYGEN__)
#define TRUE 1
#endif
#if !defined(__DOXYGEN__)
.syntax unified
.cpu cortex-m4
.fpu softvfp
.thumb
.text
/*
* Thread trampoline code.
*
* Threads execution starts here, the code leaves the system critical zone
* and then jumps into the thread function passed in register R4. The
* register R5 contains the thread parameter. The function chThdExit() is
* called on thread function return.
*/
.thumb_func
.globl _port_thread_start
_port_thread_start:
#if CH_DBG_SYSTEM_STATE_CHECK
bl dbg_check_unlock
#endif
#if CH_DBG_STATISTICS
bl _stats_stop_measure_crit_thd
#endif
movs r3, #0
msr BASEPRI, r3
mov r0, r5
blx r4
bl chThdExit
#endif /* !defined(__DOXYGEN__) */
/** @} */
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