forked from Imagelibrary/rtems
b2353ed924
- Add `printk` support to aid multi-core debugging. - Add lock trace to aid lock debugging. - Fixes to gcc-7.1 warnings. - Fixes from ticket #2879. - Add verbose command controls. - Change using the RTEMS sys/lock.h API to manage exception threads. - ARM hardware breakpoint fixes. Support for SMP stepping is not implemented, this requires use of the context id register. Closes #2879.
218 lines
6.4 KiB
C
218 lines
6.4 KiB
C
/*
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* Copyright (c) 2016-2017 Chris Johns <chrisj@rtems.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Debugger for RTEMS.
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*/
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#ifndef _RTEMS_DEBUGGER_SERVER_h
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#define _RTEMS_DEBUGGER_SERVER_h
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#include <rtems.h>
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#include <rtems/printer.h>
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#include <rtems/rtems-debugger.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* Debugger NUMOF macro.
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*/
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#define RTEMS_DEBUGGER_NUMOF(_d) (sizeof(_d) / sizeof(_d[0]))
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/**
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* Machine specific size. Here for 64bit support.
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*/
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#define DB_UINT uint32_t
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/*
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* Debugger signals.
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*/
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#define RTEMS_DEBUGGER_SIGNAL_HUP 1 /* Hangup */
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#define RTEMS_DEBUGGER_SIGNAL_INT 2 /* Interrupt */
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#define RTEMS_DEBUGGER_SIGNAL_QUIT 3 /* Quit */
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#define RTEMS_DEBUGGER_SIGNAL_ILL 4 /* Illegal instruction */
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#define RTEMS_DEBUGGER_SIGNAL_TRAP 5 /* Trace/breakpoint trap */
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#define RTEMS_DEBUGGER_SIGNAL_ABRT 6 /* Aborted */
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#define RTEMS_DEBUGGER_SIGNAL_EMT 7 /* Emulation trap */
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#define RTEMS_DEBUGGER_SIGNAL_FPE 8 /* Arithmetic exception */
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#define RTEMS_DEBUGGER_SIGNAL_KILL 9 /* Killed */
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#define RTEMS_DEBUGGER_SIGNAL_BUS 10 /* Bus error */
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#define RTEMS_DEBUGGER_SIGNAL_SEGV 11 /* Segmentation fault */
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#define RTEMS_DEBUGGER_SIGNAL_SYS 12 /* Bad system call */
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#define RTEMS_DEBUGGER_SIGNAL_PIPE 13 /* Broken pipe */
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#define RTEMS_DEBUGGER_SIGNAL_ALRM 14 /* Alarm clock */
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#define RTEMS_DEBUGGER_SIGNAL_TERM 15 /* Terminated */
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#define RTEMS_DEBUGGER_SIGNAL_URG 16 /* Urgent I/O condition */
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#define RTEMS_DEBUGGER_SIGNAL_STOP 17 /* Stopped (signal) */
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#define RTEMS_DEBUGGER_SIGNAL_TSTP 18 /* Stopped (user) */
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#define RTEMS_DEBUGGER_SIGNAL_CONT 19 /* Continued */
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/**
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* Timeout period for the Debugger task to stop in usecs.
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*/
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#define RTEMS_DEBUGGER_TIMEOUT_STOP (5 * 1000 * 1000)
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/**
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* Debugger poll wait timeout in usecs.
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*/
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#define RTEMS_DEBUGGER_POLL_WAIT (10000)
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/**
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* Debugger task stack size.
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*/
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#define RTEMS_DEBUGGER_STACKSIZE (16 * 1024)
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/**
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* Debugger output buffer size.
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*/
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#define RTEMS_DEBUGGER_BUFFER_SIZE (4 * 1024)
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/**
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* Debugger flags.
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*/
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#define RTEMS_DEBUGGER_FLAG_VERBOSE (1 << 0)
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#define RTEMS_DEBUGGER_FLAG_RESET (1 << 1)
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#define RTEMS_DEBUGGER_FLAG_NON_STOP (1 << 2)
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#define RTEMS_DEBUGGER_FLAG_VCONT (1 << 3)
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#define RTEMS_DEBUGGER_FLAG_MULTIPROCESS (1 << 4)
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#define RTEMS_DEBUGGER_FLAG_VERBOSE_LOCK (1 << 5)
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#define RTEMS_DEBUGGER_FLAG_VERBOSE_CMDS (1 << 6)
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/**
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* Forward decl for the threads and targets.
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*/
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typedef struct rtems_debugger_remote rtems_debugger_remote;
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typedef struct rtems_debugger_threads rtems_debugger_threads;
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typedef struct rtems_debugger_target rtems_debugger_target;
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/**
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* Local types for the RTEMS-X interface.
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*/
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typedef struct _Condition_Control rtems_rx_cond;
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typedef struct _Mutex_recursive_Control rtems_rx_mutex;
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/**
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* Debugger data.
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*/
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typedef struct
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{
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int port;
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int timeout;
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rtems_task_priority priority;
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rtems_rx_mutex lock;
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rtems_debugger_remote* remote;
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rtems_id server_task;
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rtems_rx_cond server_cond;
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volatile bool server_running;
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volatile bool server_finished;
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rtems_id events_task;
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volatile bool events_running;
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volatile bool events_finished;
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rtems_printer printer;
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uint32_t flags;
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pid_t pid;
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bool remote_debug;
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bool ack_pending;
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size_t output_level;
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uint8_t input[RTEMS_DEBUGGER_BUFFER_SIZE];
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uint8_t output[RTEMS_DEBUGGER_BUFFER_SIZE];
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rtems_debugger_threads* threads;
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rtems_chain_control exception_threads;
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int signal;
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rtems_debugger_target* target;
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} rtems_debugger_server;
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/**
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* Debugger global variable.
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*/
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extern rtems_debugger_server* rtems_debugger;
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/**
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* Debug server printer.
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*/
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extern int rtems_debugger_printf(const char* format, ...) RTEMS_PRINTFLIKE(1, 2);
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extern int rtems_debugger_clean_printf(const char* format, ...) RTEMS_PRINTFLIKE(1, 2);
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extern void rtems_debugger_printk_lock(rtems_interrupt_lock_context* lock_context);
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extern void rtems_debugger_printk_unlock(rtems_interrupt_lock_context* lock_context);
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/**
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* Lock the Debugger.
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*/
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extern void rtems_debugger_lock(void);
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/**
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* Unlock the Debugger.
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*/
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extern void rtems_debugger_unlock(void);
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/**
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* Is the server still running?
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*/
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extern bool rtems_debugger_server_running(void);
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/**
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* Get the remote handle from the debugger.
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*/
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extern rtems_debugger_remote* rtems_debugger_remote_handle(void);
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/**
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* Is the debugger connected?
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*/
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extern bool rtems_debugger_connected(void);
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/**
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* Is the debugger events thread runnins?
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*/
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extern bool rtems_debugger_server_events_running(void);
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/**
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* Signal events thread in the debug server to run.
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*/
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extern void rtems_debugger_server_events_signal(void);
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/**
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* Check if verbose is on.
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*/
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extern bool rtems_debugger_verbose(void);
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/**
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* Check a flag.
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*/
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static inline bool rtems_debugger_server_flag(uint32_t mask)
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{
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return (rtems_debugger->flags & mask) != 0;
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}
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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