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/*
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio.
This file is part of ChibiOS.
ChibiOS 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 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 chdebug.c
* @brief Debug support code.
*
* @addtogroup debug
* @details Debug APIs and services:
* - Runtime system state and call protocol check. The following
* panic messages can be generated:
* - SV#1, misplaced @p chSysDisable().
* - Called from an ISR.
* - Called from a critical zone.
* .
* - SV#2, misplaced @p chSysSuspend()
* - Called from an ISR.
* - Called from a critical zone.
* .
* - SV#3, misplaced @p chSysEnable().
* - Called from an ISR.
* - Called from a critical zone.
* .
* - SV#4, misplaced @p chSysLock().
* - Called from an ISR.
* - Called from a critical zone.
* .
* - SV#5, misplaced @p chSysUnlock().
* - Called from an ISR.
* - Not called from a critical zone.
* .
* - SV#6, misplaced @p chSysLockFromISR().
* - Not called from an ISR.
* - Called from a critical zone.
* .
* - SV#7, misplaced @p chSysUnlockFromISR().
* - Not called from an ISR.
* - Not called from a critical zone.
* .
* - SV#8, misplaced @p CH_IRQ_PROLOGUE().
* - Not called at ISR begin.
* - Called from a critical zone.
* .
* - SV#9, misplaced @p CH_IRQ_EPILOGUE().
* - @p CH_IRQ_PROLOGUE() missing.
* - Not called at ISR end.
* - Called from a critical zone.
* .
* - SV#10, misplaced I-class function.
* - I-class function not called from within a critical zone.
* .
* - SV#11, misplaced S-class function.
* - S-class function not called from within a critical zone.
* - Called from an ISR.
* .
* - Trace buffer.
* - Parameters check.
* - Kernel assertions.
* - Kernel panics.
* .
* @note Stack checks are not implemented in this module but in the port
* layer in an architecture-dependent way.
* @{
*/
#include "ch.h"
/*===========================================================================*/
/* Module local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Module local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Module exported functions. */
/*===========================================================================*/
#if (CH_DBG_SYSTEM_STATE_CHECK == TRUE) || defined(__DOXYGEN__)
/**
* @brief Guard code for @p chSysDisable().
*
* @notapi
*/
void _dbg_check_disable(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#1");
}
}
/**
* @brief Guard code for @p chSysSuspend().
*
* @notapi
*/
void _dbg_check_suspend(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#2");
}
}
/**
* @brief Guard code for @p chSysEnable().
*
* @notapi
*/
void _dbg_check_enable(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#3");
}
}
/**
* @brief Guard code for @p chSysLock().
*
* @notapi
*/
void _dbg_check_lock(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#4");
}
_dbg_enter_lock();
}
/**
* @brief Guard code for @p chSysUnlock().
*
* @notapi
*/
void _dbg_check_unlock(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
chSysHalt("SV#5");
}
_dbg_leave_lock();
}
/**
* @brief Guard code for @p chSysLockFromIsr().
*
* @notapi
*/
void _dbg_check_lock_from_isr(void) {
if ((ch.dbg.isr_cnt <= (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#6");
}
_dbg_enter_lock();
}
/**
* @brief Guard code for @p chSysUnlockFromIsr().
*
* @notapi
*/
void _dbg_check_unlock_from_isr(void) {
if ((ch.dbg.isr_cnt <= (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
chSysHalt("SV#7");
}
_dbg_leave_lock();
}
/**
* @brief Guard code for @p CH_IRQ_PROLOGUE().
*
* @notapi
*/
void _dbg_check_enter_isr(void) {
port_lock_from_isr();
if ((ch.dbg.isr_cnt < (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#8");
}
ch.dbg.isr_cnt++;
port_unlock_from_isr();
}
/**
* @brief Guard code for @p CH_IRQ_EPILOGUE().
*
* @notapi
*/
void _dbg_check_leave_isr(void) {
port_lock_from_isr();
if ((ch.dbg.isr_cnt <= (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
chSysHalt("SV#9");
}
ch.dbg.isr_cnt--;
port_unlock_from_isr();
}
/**
* @brief I-class functions context check.
* @details Verifies that the system is in an appropriate state for invoking
* an I-class API function. A panic is generated if the state is
* not compatible.
*
* @api
*/
void chDbgCheckClassI(void) {
if ((ch.dbg.isr_cnt < (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
chSysHalt("SV#10");
}
}
/**
* @brief S-class functions context check.
* @details Verifies that the system is in an appropriate state for invoking
* an S-class API function. A panic is generated if the state is
* not compatible.
*
* @api
*/
void chDbgCheckClassS(void) {
if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
chSysHalt("SV#11");
}
}
#endif /* CH_DBG_SYSTEM_STATE_CHECK == TRUE */
/** @} */
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