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/*
ChibiOS/RT - Copyright (C) 2006-2007 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 chdebug.c
* @brief ChibiOS/RT Debug code.
* @addtogroup CondVars
* @{
*/
#include <ch.h>
#ifdef CH_USE_DEBUG
char *panicmsg;
/**
* @brief Debug subsystem initialization.
*/
void debug_init(void) {
#ifdef CH_USE_TRACE
dbgtb.tb_size = TRACE_BUFFER_SIZE;
dbgtb.tb_ptr = &dbgtb.tb_buffer[0];
#endif
}
/**
* @brief Prints a panic message on the console/debugger and then halts the
* system.
*
* @param msg the pointer to the message string
*/
void chDbgPanic(char *msg) {
panicmsg = msg;
chSysPuts("PANIC: ");
chSysPuts(msg);
chSysHalt();
}
#ifdef CH_USE_TRACE
/**
* @brief Public trace buffer.
*/
TraceBuffer dbgtb;
/**
* @brief Inserts in the circular debug trace buffer a context switch record.
*
* @param otp the thread being switched out
* @param ntp the thread to be resumed
*/
void chDbgTrace(Thread *otp, Thread *ntp) {
dbgtb.tb_ptr->cse_wtobjp = otp->p_wtobjp;
dbgtb.tb_ptr->cse_time = chSysGetTime();
dbgtb.tb_ptr->cse_state = otp->p_state;
dbgtb.tb_ptr->cse_tid = (unsigned)ntp >> 4;
if (++dbgtb.tb_ptr >= &dbgtb.tb_buffer[TRACE_BUFFER_SIZE])
dbgtb.tb_ptr = &dbgtb.tb_buffer[0];
}
#endif /* CH_USE_TRACE */
#endif /* CH_USE_DEBUG */
/** @} */
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