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libdebugger: Fixes to debugging, ARM support, locking, and gcc-7.1 warnings.

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- 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.
This commit is contained in:
Chris Johns
2017-07-17 09:53:11 +10:00
parent 2465c0130b
commit b2353ed924
15 changed files with 477 additions and 324 deletions
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35
cpukit/libdebugger/rtems-debugger-server.h
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@@ -1,5 +1,6 @@
/*
* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>. All rights reserved.
* 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
@@ -100,6 +101,8 @@ extern "C" {
#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.
@@ -108,6 +111,12 @@ 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.
*/
@@ -116,10 +125,10 @@ typedef struct
int port;
int timeout;
rtems_task_priority priority;
rtems_id lock;
rtems_id lock_output;
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;
@@ -134,6 +143,7 @@ typedef struct
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;
@@ -147,41 +157,44 @@ 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 int rtems_debugger_lock(void);
extern void rtems_debugger_lock(void);
/**
* Unlock the Debugger.
*/
extern int rtems_debugger_unlock(void);
extern void rtems_debugger_unlock(void);
/**
* Is the server still running?
*/
bool rtems_debugger_server_running(void);
extern bool rtems_debugger_server_running(void);
/**
* Get the remote handle from the debugger.
*/
rtems_debugger_remote* rtems_debugger_remote_handle(void);
extern rtems_debugger_remote* rtems_debugger_remote_handle(void);
/**
* Is the debugger connected?
*/
bool rtems_debugger_connected(void);
extern bool rtems_debugger_connected(void);
/**
* Is the debugger events thread runnins?
*/
bool rtems_debugger_server_events_running(void);
extern bool rtems_debugger_server_events_running(void);
/**
* Wake events thread in the debug server.
* Signal events thread in the debug server to run.
*/
extern int rtems_debugger_server_events_wake(void);
extern void rtems_debugger_server_events_signal(void);
/**
* Check if verbose is on.