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/*
* Copyright (c) 2016-2017 Chris Johns <chrisj@rtems.org>.
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*/
/*
* Debugger for RTEMS.
*/
#ifndef _RTEMS_DEBUGGER_SERVER_h
#define _RTEMS_DEBUGGER_SERVER_h
#include <rtems.h>
#include <rtems/printer.h>
#include <rtems/rtems-debugger.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* Debugger NUMOF macro.
*/
#define RTEMS_DEBUGGER_NUMOF(_d) (sizeof(_d) / sizeof(_d[0]))
/**
* Machine specific size. Here for 64bit support.
*/
#define DB_UINT uint32_t
/*
* Debugger signals.
*/
#define RTEMS_DEBUGGER_SIGNAL_HUP 1 /* Hangup */
#define RTEMS_DEBUGGER_SIGNAL_INT 2 /* Interrupt */
#define RTEMS_DEBUGGER_SIGNAL_QUIT 3 /* Quit */
#define RTEMS_DEBUGGER_SIGNAL_ILL 4 /* Illegal instruction */
#define RTEMS_DEBUGGER_SIGNAL_TRAP 5 /* Trace/breakpoint trap */
#define RTEMS_DEBUGGER_SIGNAL_ABRT 6 /* Aborted */
#define RTEMS_DEBUGGER_SIGNAL_EMT 7 /* Emulation trap */
#define RTEMS_DEBUGGER_SIGNAL_FPE 8 /* Arithmetic exception */
#define RTEMS_DEBUGGER_SIGNAL_KILL 9 /* Killed */
#define RTEMS_DEBUGGER_SIGNAL_BUS 10 /* Bus error */
#define RTEMS_DEBUGGER_SIGNAL_SEGV 11 /* Segmentation fault */
#define RTEMS_DEBUGGER_SIGNAL_SYS 12 /* Bad system call */
#define RTEMS_DEBUGGER_SIGNAL_PIPE 13 /* Broken pipe */
#define RTEMS_DEBUGGER_SIGNAL_ALRM 14 /* Alarm clock */
#define RTEMS_DEBUGGER_SIGNAL_TERM 15 /* Terminated */
#define RTEMS_DEBUGGER_SIGNAL_URG 16 /* Urgent I/O condition */
#define RTEMS_DEBUGGER_SIGNAL_STOP 17 /* Stopped (signal) */
#define RTEMS_DEBUGGER_SIGNAL_TSTP 18 /* Stopped (user) */
#define RTEMS_DEBUGGER_SIGNAL_CONT 19 /* Continued */
/**
* Timeout period for the Debugger task to stop in usecs.
*/
#define RTEMS_DEBUGGER_TIMEOUT_STOP (5 * 1000 * 1000)
/**
* Debugger poll wait timeout in usecs.
*/
#define RTEMS_DEBUGGER_POLL_WAIT (10000)
/**
* Debugger task stack size.
*/
#define RTEMS_DEBUGGER_STACKSIZE (16 * 1024)
/**
* Debugger output buffer size.
*/
#define RTEMS_DEBUGGER_BUFFER_SIZE (4 * 1024)
/**
* Debugger flags.
*/
#define RTEMS_DEBUGGER_FLAG_VERBOSE (1 << 0)
#define RTEMS_DEBUGGER_FLAG_RESET (1 << 1)
#define RTEMS_DEBUGGER_FLAG_NON_STOP (1 << 2)
#define RTEMS_DEBUGGER_FLAG_VCONT (1 << 3)
#define RTEMS_DEBUGGER_FLAG_MULTIPROCESS (1 << 4)
#define RTEMS_DEBUGGER_FLAG_VERBOSE_LOCK (1 << 5)
#define RTEMS_DEBUGGER_FLAG_VERBOSE_CMDS (1 << 6)
/**
* Forward decl for the threads and targets.
*/
typedef struct rtems_debugger_remote rtems_debugger_remote;
typedef struct rtems_debugger_threads rtems_debugger_threads;
typedef struct rtems_debugger_target rtems_debugger_target;
/**
* Local types for the RTEMS-X interface.
*/
typedef struct _Condition_Control rtems_rx_cond;
typedef struct _Mutex_recursive_Control rtems_rx_mutex;
/**
* Debugger data.
*/
typedef struct
{
int port;
int timeout;
rtems_task_priority priority;
rtems_rx_mutex lock;
rtems_debugger_remote* remote;
rtems_id server_task;
rtems_rx_cond server_cond;
volatile bool server_running;
volatile bool server_finished;
rtems_id events_task;
volatile bool events_running;
volatile bool events_finished;
rtems_printer printer;
uint32_t flags;
pid_t pid;
bool remote_debug;
bool ack_pending;
size_t output_level;
uint8_t input[RTEMS_DEBUGGER_BUFFER_SIZE];
uint8_t output[RTEMS_DEBUGGER_BUFFER_SIZE];
rtems_debugger_threads* threads;
rtems_chain_control exception_threads;
int signal;
rtems_debugger_target* target;
} rtems_debugger_server;
/**
* Debugger global variable.
*/
extern rtems_debugger_server* rtems_debugger;
/**
* Debug server printer.
*/
extern int rtems_debugger_printf(const char* format, ...) RTEMS_PRINTFLIKE(1, 2);
extern int rtems_debugger_clean_printf(const char* format, ...) RTEMS_PRINTFLIKE(1, 2);
extern void rtems_debugger_printk_lock(rtems_interrupt_lock_context* lock_context);
extern void rtems_debugger_printk_unlock(rtems_interrupt_lock_context* lock_context);
/**
* Lock the Debugger.
*/
extern void rtems_debugger_lock(void);
/**
* Unlock the Debugger.
*/
extern void rtems_debugger_unlock(void);
/**
* Is the server still running?
*/
extern bool rtems_debugger_server_running(void);
/**
* Get the remote handle from the debugger.
*/
extern rtems_debugger_remote* rtems_debugger_remote_handle(void);
/**
* Is the debugger connected?
*/
extern bool rtems_debugger_connected(void);
/**
* Is the debugger events thread runnins?
*/
extern bool rtems_debugger_server_events_running(void);
/**
* Signal events thread in the debug server to run.
*/
extern void rtems_debugger_server_events_signal(void);
/**
* Check if verbose is on.
*/
extern bool rtems_debugger_verbose(void);
/**
* Check a flag.
*/
static inline bool rtems_debugger_server_flag(uint32_t mask)
{
return (rtems_debugger->flags & mask) != 0;
}
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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