1 /*
2  * Trace Recorder for Tracealyzer v4.5.1
3  * Copyright 2021 Percepio AB
4  * www.percepio.com
5  *
6  * SPDX-License-Identifier: Apache-2.0
7  *
8  * The public API of the trace recorder.
9  */
10 
11 #ifndef TRC_RECORDER_H
12 #define TRC_RECORDER_H
13 
14 #ifdef __cplusplus
15 extern "C" {
16 #endif
17 
18 #include <stdint.h>
19 #include <stddef.h>
20 #include <stdarg.h>
21 
22 #define TRC_ACKNOWLEDGED (0xABC99123)
23 
24 #include "trcConfig.h"
25 #include "trcPortDefines.h"
26 
27 typedef uint32_t traceResult;
28 
29 #if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_SNAPSHOT)
30 
31 typedef uint16_t traceString;
32 typedef uint8_t traceUBChannel;
33 typedef uint8_t traceObjectClass;
34 
35 #if (TRC_CFG_USE_16BIT_OBJECT_HANDLES == 1)
36 typedef uint16_t traceHandle;
37 #else /* (TRC_CFG_USE_16BIT_OBJECT_HANDLES == 1) */
38 typedef uint8_t traceHandle;
39 #endif /* (TRC_CFG_USE_16BIT_OBJECT_HANDLES == 1) */
40 
41 #include "trcHardwarePort.h"
42 #include "trcKernelPort.h"
43 
44 /* Not yet available in snapshot mode */
45 #define vTraceConsoleChannelPrintF(fmt, ...) (void)(fmt)
46 #define prvTraceStoreEvent0(...)
47 #define prvTraceStoreEvent1(...)
48 #define prvTraceStoreEvent2(...)
49 #define prvTraceStoreEvent3(...)
50 #define prvTraceStoreEvent(...)
51 #define prvTraceStoreStringEvent(...)
52 
53 #endif /* (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_SNAPSHOT) */
54 
55 #if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)
56 
57 typedef const char* traceString;
58 typedef const void* traceHandle;
59 
60 #include "trcHardwarePort.h"
61 #include "trcStreamingPort.h"
62 #include "trcKernelPort.h"
63 
64 #endif /* (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING) */
65 
66 #if (TRC_USE_TRACEALYZER_RECORDER == 1)
67 
68 #define TRC_STATE_IN_STARTUP 0
69 #define TRC_STATE_IN_TASKSWITCH 1
70 #define TRC_STATE_IN_APPLICATION 2
71 
72 /* The user event channel for recorder warnings, must be defined in trcKernelPort.c */
73 extern traceString trcWarningChannel;
74 
75 #define TRACE_GET_LOW16(value) ((uint16_t)((value) & 0x0000FFFF))
76 #define TRACE_GET_HIGH16(value) ((uint16_t)(((value) >> 16) & 0x0000FFFF))
77 #define TRACE_SET_LOW16(current, value)  (((current) & 0xFFFF0000) | (value))
78 #define TRACE_SET_HIGH16(current, value) (((current) & 0x0000FFFF) | (((uint32_t)(value)) << 16))
79 
80 /******************************************************************************/
81 /*** Common API - both Snapshot and Streaming mode ****************************/
82 /******************************************************************************/
83 
84 /******************************************************************************
85 * vTraceEnable(int startOption);
86 *
87 * Initializes and optionally starts the trace, depending on the start option.
88 * To use the trace recorder, the startup must call vTraceEnable before any RTOS
89 * calls are made (including "create" calls). Three start options are provided:
90 *
91 * TRC_START: Starts the tracing directly. In snapshot mode this allows for
92 * starting the trace at any point in your code, assuming vTraceEnable(TRC_INIT)
93 * has been called in the startup.
94 * Can also be used for streaming without Tracealyzer control, e.g. to a local
95 * flash file system (assuming such a "stream port", see trcStreamingPort.h).
96 *
97 * TRC_START_AWAIT_HOST: For streaming mode only. Initializes the trace recorder
98 * if necessary and waits for a Start command from Tracealyzer ("Start Recording"
99 * button). This call is intentionally blocking! By calling vTraceEnable with
100 * this option from the startup code, you start tracing at this point and capture
101 * the early events.
102 *
103 * TRC_INIT: Initializes the trace recorder, but does not start the tracing.
104 * In snapshot mode, this must be followed by a vTraceEnable(TRC_START) sometime
105 * later.
106 *
107 * Usage examples:
108 *
109 * Snapshot trace, from startup:
110 * 	<board init>
111 * 	vTraceEnable(TRC_START);
112 * 	<RTOS init>
113 *
114 * Snapshot trace, from a later point:
115 * 	<board init>
116 * 	vTraceEnable(TRC_INIT);
117 * 	<RTOS init>
118 * 	...
119 * 	vTraceEnable(TRC_START); // e.g., in task context, at some relevant event
120 *
121 * Streaming trace, from startup:
122 *	<board init>
123 *	vTraceEnable(TRC_START_AWAIT_HOST); // Blocks!
124 *	<RTOS init>
125 *
126 * Streaming trace, from a later point:
127 *	<board startup>
128 *	vTraceEnable(TRC_INIT);
129 *	<RTOS startup>
130 *
131 ******************************************************************************/
132 void vTraceEnable(int startOption);
133 
134 /******************************************************************************
135  * vTracePrintF
136  *
137  * Generates "User Events", with formatted text and data, similar to a "printf".
138  * User Events can be used for very efficient logging from your application code.
139  * It is very fast since the actual string formatting is done on the host side,
140  * when the trace is displayed. The execution time is just some microseconds on
141  * a 32-bit MCU.
142  *
143  * User Events are shown as yellow labels in the main trace view of $PNAME.
144  *
145  * An advantage of User Events is that data can be plotted in the "User Event
146  * Signal Plot" view, visualizing any data you log as User Events, discrete
147  * states or control system signals (e.g. system inputs or outputs).
148  *
149  * You may group User Events into User Event Channels. The yellow User Event
150  * labels show the logged string, preceded by the channel name within brackets.
151  *
152  * Example:
153  *
154  *  "[MyChannel] Hello World!"
155  *
156  * The User Event Channels are shown in the View Filter, which makes it easy to
157  * select what User Events you wish to display. User Event Channels are created
158  * using xTraceRegisterString().
159  *
160  * Example:
161  *
162  *	 traceString adc_uechannel = xTraceRegisterString("ADC User Events");
163  *	 ...
164  *	 vTracePrintF(adc_uechannel,
165  *				 "ADC channel %d: %d volts",
166  *				 ch, adc_reading);
167  *
168  * The following format specifiers are supported in both modes:
169  * %d - signed integer.
170  * %u - unsigned integer.
171  * %X - hexadecimal, uppercase.
172  * %x - hexadecimal, lowercase.
173  * %s - string (see comment below)
174  *
175  * For integer formats (%d, %u, %x, %X) you may also use width and padding.
176  * If using -42 as data argument, two examples are:
177  *    "%05d" -> "-0042"
178  *     "%5d" -> "  -42".
179  *
180  * String arguments are supported in both snapshot and streaming, but in streaming
181  * mode you need to use xTraceRegisterString and use the returned traceString as
182  * the argument. In snapshot you simply provide a char* as argument.
183  *
184  * Snapshot: vTracePrintF(myChn, "my string: %s", str);
185  * Streaming: vTracePrintF(myChn, "my string: %s", xTraceRegisterString(str));
186  *
187  * In snapshot mode you can specify 8-bit or 16-bit arguments to reduce RAM usage:
188  *     %hd -> 16 bit (h) signed integer (d).
189  *     %bu -> 8 bit (b) unsigned integer (u).
190  *
191  * However, in streaming mode all data arguments are assumed to be 32 bit wide.
192  * Width specifiers (e.g. %hd) are accepted but ignored (%hd treated like %d).
193  *
194  * The maximum event size also differs between the modes. In streaming this is
195  * limited by a maximum payload size of 52 bytes, including format string and
196  * data arguments. So if using one data argument, the format string is limited
197  * to 48 byte, etc. If this is exceeded,  the format string is truncated and you
198  * get a warning in Tracealyzer.
199  *
200  * In snapshot mode you are limited to maximum 15 arguments, that must not exceed
201  * 32 bytes in total (not counting the format string). If exceeded, the recorder
202  * logs an internal error (displayed when opening the trace) and stops recording.
203  ******************************************************************************/
204 #if (TRC_CFG_SCHEDULING_ONLY == 0) && (TRC_CFG_INCLUDE_USER_EVENTS == 1)
205 void vTracePrintF(traceString chn, const char* fmt, ...);
206 #else
207 #define vTracePrintF(chn, fmt, ...) (void)(chn), (void)(fmt) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
208 #endif
209 
210 /******************************************************************************
211  * vTraceVPrintF
212  *
213  * vTracePrintF variant that accepts a va_list.
214  * See vTracePrintF documentation for further details.
215  *
216  ******************************************************************************/
217 #if (TRC_CFG_SCHEDULING_ONLY == 0) && (TRC_CFG_INCLUDE_USER_EVENTS == 1)
218 void vTraceVPrintF(traceString eventLabel, const char* formatStr, va_list vl);
219 #else
220 #define vTraceVPrintF(chn, formatStr, vl) (void)(chn), (void)(formatStr), (void)(vl) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
221 #endif
222 
223 /******************************************************************************
224 * vTracePrint
225 *
226 * A faster version of vTracePrintF, that only allows for logging a string.
227 *
228 * Example:
229 *
230 *	 traceString chn = xTraceRegisterString("MyChannel");
231 *	 ...
232 *	 vTracePrint(chn, "Hello World!");
233 ******************************************************************************/
234 #if (TRC_CFG_SCHEDULING_ONLY == 0) && (TRC_CFG_INCLUDE_USER_EVENTS == 1)
235 void vTracePrint(traceString chn, const char* str);
236 #else
237 #define vTracePrint(chn, str) (void)(chn), (void)(str) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
238 #endif
239 
240 
241 /*******************************************************************************
242 * vTraceConsoleChannelPrintF
243 *
244 * Wrapper for vTracePrint, using the default channel. Can be used as a drop-in
245 * replacement for printf and similar functions, e.g. in a debug logging macro.
246 *
247 * Example:
248 *
249 *	 // Old: #define LogString debug_console_printf
250 *
251 *    // New, log to Tracealyzer instead:
252 *	 #define LogString vTraceConsoleChannelPrintF
253 *	 ...
254 *	 LogString("My value is: %d", myValue);
255 ******************************************************************************/
256 #if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)
257 void vTraceConsoleChannelPrintF(const char* fmt, ...);
258 #endif
259 
260 /*******************************************************************************
261 * xTraceRegisterString
262 *
263 * Register strings in the recorder, e.g. for names of user event channels.
264 *
265 * Example:
266 *	 myEventHandle = xTraceRegisterString("MyUserEvent");
267 *	 ...
268 *	 vTracePrintF(myEventHandle, "My value is: %d", myValue);
269 ******************************************************************************/
270 #if (TRC_CFG_SCHEDULING_ONLY == 0) && (TRC_CFG_INCLUDE_USER_EVENTS == 1)
271 traceString xTraceRegisterString(const char* name);
272 #else
273 #define xTraceRegisterString(x) ((void)(x), (traceString)0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
274 #endif
275 
276 /*******************************************************************************
277  * vTraceSet...Name(void* object, const char* name)
278  *
279  * Parameter object: pointer to the kernel object that shall be named
280  * Parameter name: the name to set
281  *
282  * Kernel-specific functions for setting names of kernel objects, for display in
283  * Tracealyzer.
284  ******************************************************************************/
285 /* See trcKernelPort.h for details (kernel-specific) */
286 
287 /*******************************************************************************
288  * xTraceSetISRProperties
289  *
290  * Stores a name and priority level for an Interrupt Service Routine, to allow
291  * for better visualization. Returns a traceHandle used by vTraceStoreISRBegin.
292  *
293  * Example:
294  *	 #define PRIO_ISR_TIMER1 3 // the hardware priority of the interrupt
295  *	 ...
296  *	 traceHandle Timer1Handle = xTraceSetISRProperties("ISRTimer1", PRIO_ISR_TIMER1);
297  *	 ...
298  *	 void ISR_handler()
299  *	 {
300  *		 vTraceStoreISRBegin(Timer1Handle);
301  *		 ...
302  *		 vTraceStoreISREnd(0);
303  *	 }
304  ******************************************************************************/
305 traceHandle xTraceSetISRProperties(const char* name, uint8_t priority);
306 
307 /*******************************************************************************
308  * vTraceStoreISRBegin
309  *
310  * Registers the beginning of an Interrupt Service Routine, using a traceHandle
311  * provided by xTraceSetISRProperties.
312  *
313  * Example:
314  *	 #define PRIO_ISR_TIMER1 3 // the hardware priority of the interrupt
315  *	 ...
316  *	 traceHandle Timer1Handle = xTraceSetISRProperties("ISRTimer1", PRIO_ISR_TIMER1);
317  *	 ...
318  *	 void ISR_handler()
319  *	 {
320  *		 vTraceStoreISRBegin(Timer1Handle);
321  *		 ...
322  *		 vTraceStoreISREnd(0);
323  *	 }
324  ******************************************************************************/
325 void vTraceStoreISRBegin(traceHandle handle);
326 
327 /*******************************************************************************
328  * vTraceStoreISREnd
329  *
330  * Registers the end of an Interrupt Service Routine.
331  *
332  * The parameter pendingISR indicates if the interrupt has requested a
333  * task-switch (= 1), e.g., by signaling a semaphore. Otherwise (= 0) the
334  * interrupt is assumed to return to the previous context.
335  *
336  * Example:
337  *	 #define PRIO_OF_ISR_TIMER1 3 // the hardware priority of the interrupt
338  *	 traceHandle traceHandleIsrTimer1 = 0; // The ID set by the recorder
339  *	 ...
340  *	 traceHandleIsrTimer1 = xTraceSetISRProperties("ISRTimer1", PRIO_OF_ISR_TIMER1);
341  *	 ...
342  *	 void ISR_handler()
343  *	 {
344  *		 vTraceStoreISRBegin(traceHandleIsrTimer1);
345  *		 ...
346  *		 vTraceStoreISREnd(0);
347  *	 }
348  ******************************************************************************/
349 void vTraceStoreISREnd(int isTaskSwitchRequired);
350 
351 /*******************************************************************************
352  * vTraceInstanceFinishNow
353  *
354  * Creates an event that ends the current task instance at this very instant.
355  * This makes the viewer to splits the current fragment at this point and begin
356  * a new actor instance, even if no task-switch has occurred.
357  *****************************************************************************/
358 void vTraceInstanceFinishedNow(void);
359 
360 /*******************************************************************************
361  * vTraceInstanceFinishedNext
362  *
363  * Marks the current "task instance" as finished on the next kernel call.
364  *
365  * If that kernel call is blocking, the instance ends after the blocking event
366  * and the corresponding return event is then the start of the next instance.
367  * If the kernel call is not blocking, the viewer instead splits the current
368  * fragment right before the kernel call, which makes this call the first event
369  * of the next instance.
370  *****************************************************************************/
371 void vTraceInstanceFinishedNext(void);
372 
373 /*******************************************************************************
374  * xTraceGetLastError
375  *
376  * Returns the last error or warning as a string, or NULL if none.
377  *****************************************************************************/
378 const char* xTraceGetLastError(void);
379 
380 /*******************************************************************************
381  * vTraceClearError
382  *
383  * Clears any errors.
384  *****************************************************************************/
385 void vTraceClearError(void);
386 
387 /*******************************************************************************
388 * vTraceStop
389 *
390 * Stops the recording. Intended for snapshot mode or if streaming without
391 * Tracealyzer control (e.g., to a device file system).
392 ******************************************************************************/
393 void vTraceStop(void);
394 
395 /******************************************************************************
396 * vTraceSetFrequency
397 *
398 * Registers the clock rate of the time source for the event timestamping.
399 * This is normally not required, but if the default value (TRC_HWTC_FREQ_HZ)
400 * should be incorrect for your setup, you can override it using this function.
401 *
402 * Must be called prior to vTraceEnable, and the time source is assumed to
403 * have a fixed clock frequency after the startup.
404 *
405 * Note that, in snapshot mode, the value is divided by the TRC_HWTC_DIVISOR.
406 * This is a software "prescaler" that is also applied on the timestamps.
407 *****************************************************************************/
408 void vTraceSetFrequency(uint32_t frequency);
409 
410 /*******************************************************************************
411 * vTraceSetRecorderDataBuffer
412 *
413 * The trcConfig.h setting TRC_CFG_RECORDER_BUFFER_ALLOCATION allows for selecting
414 * custom allocation (TRC_RECORDER_BUFFER_ALLOCATION_CUSTOM), which allows you to
415 * control where the recorder trace buffer is allocated.
416 *
417 * When custom allocation is selected, use TRC_ALLOC_CUSTOM_BUFFER to make the
418 * allocation (in global context) and then call vTraceSetRecorderDataBuffer to
419 * register the allocated buffer. This supports both snapshot and streaming,
420 * and has no effect if using other allocation modes than CUSTOM.
421 *
422 * NOTE: vTraceSetRecorderDataBuffer must be called before vTraceEnable.
423 ******************************************************************************/
424 #if (TRC_CFG_RECORDER_BUFFER_ALLOCATION == TRC_RECORDER_BUFFER_ALLOCATION_CUSTOM)
425 void vTraceSetRecorderDataBuffer(void* pRecorderData);
426 #else
427 #define vTraceSetRecorderDataBuffer(pRecorderData) /* If not CUSTOM, pRecorderData will be an undefined symbol (same as in TRC_ALLOC_CUSTOM_BUFFER), so no (void) here */
428 #endif
429 
430 
431 /*******************************************************************************
432 * TRC_ALLOC_CUSTOM_BUFFER
433 *
434 * If using custom allocation of the trace buffer (i.e., your trcConfig.h has the
435 * setting TRC_RECORDER_BUFFER_ALLOCATION_CUSTOM), this macro allows you to declare
436 * the trace buffer in a portable way that works both in snapshot and streaming.
437 *
438 * This macro has no effect if using another allocation mode, so you can easily
439 * switch between different recording modes and configurations, using the same
440 * initialization code.
441 *
442 * This translates to a single static allocation, on which you can apply linker
443 * directives to place it in a particular memory region.
444 *
445 * - Snapshot mode: "RecorderDataType <name>"
446 *
447 * - Streaming mode: "char <name> [<size>]",
448 *   where <size> is defined in trcStreamingConfig.h.
449 *
450 * Example:
451 *
452 *   // GCC example: place myTraceBuffer in section .tz, defined in the .ld file.
453 *   TRC_ALLOC_CUSTOM_BUFFER(myTraceBuffer) __attribute__((section(".tz")));
454 *
455 *   int main(void)
456 *   {
457 *      ...
458 *      vTraceSetRecorderDataBuffer(&myTraceBuffer); // Note the "&"
459 *      ...
460 *      vTraceEnable(TRC_INIT); // Initialize the data structure
461 ******************************************************************************/
462 #if (TRC_CFG_RECORDER_BUFFER_ALLOCATION == TRC_RECORDER_BUFFER_ALLOCATION_CUSTOM)
463 	#if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_SNAPSHOT)
464 		#define TRC_ALLOC_CUSTOM_BUFFER(bufname) RecorderDataType bufname;
465 	#elif (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)
466 		#ifdef TRC_CFG_RTT_BUFFER_SIZE_UP /* J-Link RTT */
467 			#define TRC_ALLOC_CUSTOM_BUFFER(bufname) char bufname [TRC_CFG_RTT_BUFFER_SIZE_UP];  /* Not static in this case, since declared in user code */
468 		#else
469 			#define TRC_ALLOC_CUSTOM_BUFFER(bufname) char bufname [(TRC_CFG_PAGED_EVENT_BUFFER_PAGE_COUNT) * (TRC_CFG_PAGED_EVENT_BUFFER_PAGE_SIZE)];
470 		#endif
471 	#endif
472 #else
473 	#define TRC_ALLOC_CUSTOM_BUFFER(bufname) /* If not CUSTOM, bufname will be an undefined symbol (same as in vTraceSetRecorderDataBuffer), so no (void) here */
474 #endif
475 
476 /******************************************************************************
477 * xTraceIsRecordingEnabled
478 *
479 * Returns true (1) if the recorder is enabled (i.e. is recording), otherwise 0.
480 ******************************************************************************/
481 int xTraceIsRecordingEnabled(void);
482 
483 /*******************************************************************************
484 * vTraceSetFilterGroup
485 *
486 * Sets the "filter group" to assign when creating RTOS objects, such as tasks,
487 * queues, semaphores and mutexes. This together with vTraceSetFilterMask
488 * allows you to control what events that are recorded, based on the
489 * objects they refer to.
490 *
491 * There are 16 filter groups named FilterGroup0 .. FilterGroup15.
492 *
493 * Note: We don't recommend filtering out the Idle task, so make sure to call
494 * vTraceSetFilterGroup just before initializing the RTOS, in order to assign
495 * such "default" objects to the right Filter Group (typically group 0).
496 *
497 * Example:
498 *
499 *		// Assign tasks T1 to FilterGroup0 (default)
500 *		<Create Task T1>
501 *
502 *		// Assign Q1 and Q2 to FilterGroup1
503 *		vTraceSetFilterGroup(FilterGroup1);
504 *		<Create Queue Q1>
505 *		<Create Queue Q2>
506 *
507 *		// Assigns Q3 to FilterGroup2
508 *		vTraceSetFilterGroup(FilterGroup2);
509 *		<Create Queue Q3>
510 *
511 *		// Only include FilterGroup0 and FilterGroup2, exclude FilterGroup1 (Q1 and Q2) from the trace
512 *		vTraceSetFilterMask( FilterGroup0 | FilterGroup2 );
513 *
514 *		// Assign the default RTOS objects (e.g. Idle task) to FilterGroup0
515 *		vTraceSetFilterGroup(FilterGroup0);
516 *		<Start the RTOS scheduler>
517 *
518 * Note that you may define your own names for the filter groups using
519 * preprocessor definitions, to make the code easier to understand.
520 *
521 * Example:
522 *
523 *		#define BASE FilterGroup0
524 *		#define USB_EVENTS FilterGroup1
525 *		#define CAN_EVENTS FilterGroup2
526 *
527 * Note that filtering per event type (regardless of object) is also available
528 * in trcConfig.h.
529 ******************************************************************************/
530 void vTraceSetFilterGroup(uint16_t filterGroup);
531 
532 /******************************************************************************
533 * vTraceSetFilterMask
534 *
535 * Sets the "filter mask" that is used to filter the events by object. This can
536 * be used to reduce the trace data rate, i.e., if your streaming interface is
537 * a bottleneck or if you want longer snapshot traces without increasing the
538 * buffer size.
539 *
540 * Note: There are two kinds of filters in the recorder. The other filter type
541 * excludes all events of certain kinds (e.g., OS ticks). See trcConfig.h.
542 *
543 * The filtering is based on bitwise AND with the Filter Group ID, assigned
544 * to RTOS objects such as tasks, queues, semaphores and mutexes.
545 * This together with vTraceSetFilterGroup allows you to control what
546 * events that are recorded, based on the objects they refer to.
547 *
548 * See example for vTraceSetFilterGroup.
549 ******************************************************************************/
550 void vTraceSetFilterMask(uint16_t filterMask);
551 
552 /******************************************************************************
553 * vTraceInitialize
554 *
555 * Initializes the recorder data.
556 * This function will be called by vTraceEnable(...).
557 * Only needs to be called manually if traced objects are created before the
558 * trace recorder can be enabled, at which point make sure to call this function
559 * as early as possible.
560 * See TRC_CFG_RECORDER_DATA_INIT in trcConfig.h.
561 ******************************************************************************/
562 void vTraceInitialize(void);
563 
564 #if defined (TRC_CFG_ENABLE_STACK_MONITOR) && (TRC_CFG_ENABLE_STACK_MONITOR == 1) && (TRC_CFG_SCHEDULING_ONLY == 0)
565 void prvAddTaskToStackMonitor(void* task);
566 void prvRemoveTaskFromStackMonitor(void* task);
567 void prvReportStackUsage(void);
568 #else /* defined (TRC_CFG_ENABLE_STACK_MONITOR) && (TRC_CFG_ENABLE_STACK_MONITOR == 1) && (TRC_CFG_SCHEDULING_ONLY == 0) */
569 #define prvAddTaskToStackMonitor(task)
570 #define prvRemoveTaskFromStackMonitor(task)
571 #define prvReportStackUsage()
572 #endif /* defined (TRC_CFG_ENABLE_STACK_MONITOR) && (TRC_CFG_ENABLE_STACK_MONITOR == 1) && (TRC_CFG_SCHEDULING_ONLY == 0) */
573 
574 #if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_SNAPSHOT)
575 
576 /******************************************************************************/
577 /*** Extended API for Snapshot mode *******************************************/
578 /******************************************************************************/
579 
580 /******************************************************************************
581 * TRACE_STOP_HOOK - Hook Pointer Data Type
582 *
583 * Declares a data type for a call back function that will be invoked whenever
584 * the recorder is stopped.
585 *
586 * Snapshot mode only!
587 ******************************************************************************/
588 typedef void(*TRACE_STOP_HOOK)(void);
589 
590 /*******************************************************************************
591 * vTraceStopHookPtr
592 *
593 * Points to a call back function that is called from vTraceStop().
594 *
595 * Snapshot mode only!
596 ******************************************************************************/
597 extern TRACE_STOP_HOOK vTraceStopHookPtr;
598 
599 /*******************************************************************************
600 * vTraceSetStopHook
601 *
602 * Sets a function to be called when the recorder is stopped.
603 *
604 * Snapshot mode only!
605 ******************************************************************************/
606 void vTraceSetStopHook(TRACE_STOP_HOOK stopHookFunction);
607 
608 /*******************************************************************************
609 * uiTraceStart
610 *
611 * [DEPRECATED] Use vTraceEnable instead.
612 *
613 * Starts the recorder. The recorder will not be started if an error has been
614 * indicated using prvTraceError, e.g. if any of the Nx constants in
615 * trcSnapshotConfig.h has a too small value (TRC_CFG_NTASK, TRC_CFG_NQUEUE, etc).
616 *
617 * Returns 1 if the recorder was started successfully.
618 * Returns 0 if the recorder start was prevented due to a previous internal
619 * error. In that case, check xTraceGetLastError to get the error message.
620 * Any error message is also presented when opening a trace file.
621 *
622 * Snapshot mode only!
623 ******************************************************************************/
624 uint32_t uiTraceStart(void);
625 
626 /*******************************************************************************
627 * vTraceStart
628 *
629 * [DEPRECATED] Use vTraceEnable instead.
630 *
631 * Starts the recorder. The recorder will not be started if an error has been
632 * indicated using prvTraceError, e.g. if any of the Nx constants in
633 * trcSnapshotConfig.h has a too small value (TRC_CFG_NTASK, TRC_CFG_NQUEUE, etc).
634 *
635 * Snapshot mode only!
636 ******************************************************************************/
637 void vTraceStart(void);
638 
639 /*******************************************************************************
640 * vTraceClear
641 *
642 * Resets the recorder. Only necessary if a restart is desired - this is not
643 * needed in the startup initialization.
644 *
645 * Snapshot mode only!
646 ******************************************************************************/
647 void vTraceClear(void);
648 
649 
650 /*****************************************************************************/
651 /*** INTERNAL SNAPSHOT FUNCTIONS *********************************************/
652 /*****************************************************************************/
653 
654 #define TRC_UNUSED
655 
656 #ifndef TRC_CFG_INCLUDE_OBJECT_DELETE
657 #define TRC_CFG_INCLUDE_OBJECT_DELETE 0
658 #endif
659 
660 #ifndef TRC_CFG_INCLUDE_READY_EVENTS
661 #define TRC_CFG_INCLUDE_READY_EVENTS 1
662 #endif
663 
664 #ifndef TRC_CFG_INCLUDE_OSTICK_EVENTS
665 #define TRC_CFG_INCLUDE_OSTICK_EVENTS 0
666 #endif
667 
668 /* This macro will create a task in the object table */
669 #undef trcKERNEL_HOOKS_TASK_CREATE
670 #define trcKERNEL_HOOKS_TASK_CREATE(SERVICE, CLASS, pxTCB) \
671 	TRACE_SET_OBJECT_NUMBER(TASK, pxTCB); \
672 	TRACE_SET_OBJECT_FILTER(TASK, pxTCB, CurrentFilterGroup); \
673 	prvTraceSetObjectName(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), TRACE_GET_TASK_NAME(pxTCB)); \
674 	prvTraceSetPriorityProperty(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), TRACE_GET_TASK_PRIORITY(pxTCB)); \
675 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
676 		if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
677 			prvTraceStoreKernelCall(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB));
678 
679 /* This macro will remove the task and store it in the event buffer */
680 #undef trcKERNEL_HOOKS_TASK_DELETE
681 #define trcKERNEL_HOOKS_TASK_DELETE(SERVICE, SERVICE_NAME, SERVICE_PROP, pxTCB) \
682 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
683 		if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
684 			prvTraceStoreKernelCall(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB)); \
685 	prvTraceStoreObjectNameOnCloseEvent(SERVICE_NAME, TRACE_GET_TASK_NUMBER(pxTCB), TRACE_CLASS_TASK); \
686 	prvTraceStoreObjectPropertiesOnCloseEvent(SERVICE_PROP, TRACE_GET_TASK_NUMBER(pxTCB), TRACE_CLASS_TASK); \
687 	prvTraceSetPriorityProperty(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), TRACE_GET_TASK_PRIORITY(pxTCB)); \
688 	prvTraceSetObjectState(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), TASK_STATE_INSTANCE_NOT_ACTIVE); \
689 	prvTraceFreeObjectHandle(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB));
690 
691 
692 /* This macro will setup a task in the object table */
693 #undef trcKERNEL_HOOKS_OBJECT_CREATE
694 #define trcKERNEL_HOOKS_OBJECT_CREATE(SERVICE, CLASS, pxObject)\
695 	TRACE_SET_OBJECT_NUMBER(CLASS, pxObject);\
696 	TRACE_SET_OBJECT_FILTER(CLASS, pxObject, CurrentFilterGroup); \
697 	prvMarkObjectAsUsed(TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject),  TRACE_GET_OBJECT_NUMBER(CLASS, pxObject));\
698 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
699 		if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
700 			prvTraceStoreKernelCall(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject)); \
701 	prvTraceSetObjectState(TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), 0);
702 
703 /* This macro will remove the object and store it in the event buffer */
704 #undef trcKERNEL_HOOKS_OBJECT_DELETE
705 #define trcKERNEL_HOOKS_OBJECT_DELETE(SERVICE, SERVICE_NAME, SERVICE_PROP, CLASS, pxObject) \
706 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
707 		if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
708 			prvTraceStoreKernelCall(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject)); \
709 	prvTraceStoreObjectNameOnCloseEvent(SERVICE_NAME, TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject)); \
710 	prvTraceStoreObjectPropertiesOnCloseEvent(SERVICE_PROP, TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject)); \
711 	prvTraceFreeObjectHandle(TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject));
712 
713 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
714 #undef trcKERNEL_HOOKS_KERNEL_SERVICE
715 #define trcKERNEL_HOOKS_KERNEL_SERVICE(SERVICE, CLASS, pxObject) \
716 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
717 		if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
718 			prvTraceStoreKernelCall(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject));
719 
720 /* This macro will create a call to a kernel service with a certain result, with a null object as parameter */
721 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT
722 #define trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT(SERVICE, TRACECLASS) \
723 	if (TRACE_GET_TASK_FILTER(TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
724 		prvTraceStoreKernelCall(SERVICE, TRACECLASS, 0);
725 
726 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
727 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_PARAM
728 #define trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_PARAM(SERVICE, CLASS, pxObject, param) \
729 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
730 		if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
731 			prvTraceStoreKernelCallWithParam(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), (uint32_t)param);
732 
733 /* This macro will create a call to a kernel service with a certain result, with a null object and other value as parameter */
734 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_WITH_PARAM
735 #define trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_WITH_PARAM(SERVICE, TRACECLASS, param) \
736 	if (TRACE_GET_TASK_FILTER(TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
737 		prvTraceStoreKernelCallWithParam(SERVICE, TRACECLASS, 0, param);
738 
739 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
740 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_NUMERIC_PARAM_ONLY
741 #define trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_NUMERIC_PARAM_ONLY(SERVICE, param) \
742 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
743 		prvTraceStoreKernelCallWithNumericParamOnly(SERVICE, (uint32_t)param);
744 
745 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
746 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_FROM_ISR
747 #define trcKERNEL_HOOKS_KERNEL_SERVICE_FROM_ISR(SERVICE, CLASS, pxObject) \
748 	if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
749 		prvTraceStoreKernelCall(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject));
750 
751 /* This macro will create a call to a kernel service with a certain result, with a null object as parameter */
752 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_FROM_ISR
753 #define trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_FROM_ISR(SERVICE, TRACECLASS) \
754 	prvTraceStoreKernelCall(SERVICE, TRACECLASS, 0);
755 
756 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
757 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_PARAM_FROM_ISR
758 #define trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_PARAM_FROM_ISR(SERVICE, CLASS, pxObject, param) \
759 	if (TRACE_GET_OBJECT_FILTER(CLASS, pxObject) & CurrentFilterMask) \
760 		prvTraceStoreKernelCallWithParam(SERVICE, TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), (uint32_t)param);
761 
762 /* This macro will create a call to a kernel service with a certain result, with a null object and other value as parameter */
763 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_WITH_PARAM_FROM_ISR
764 #define trcKERNEL_HOOKS_KERNEL_SERVICE_NULL_OBJECT_WITH_PARAM_FROM_ISR(SERVICE, TRACECLASS, param) \
765 	prvTraceStoreKernelCallWithParam(SERVICE, TRACECLASS, 0, param);
766 
767 /* This macro will create a call to a kernel service with a certain result, with an object as parameter */
768 #undef trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_NUMERIC_PARAM_ONLY_FROM_ISR
769 #define trcKERNEL_HOOKS_KERNEL_SERVICE_WITH_NUMERIC_PARAM_ONLY_FROM_ISR(SERVICE, param) \
770 	prvTraceStoreKernelCallWithNumericParamOnly(SERVICE, (uint32_t)param);
771 
772 /* This macro will set the state for an object */
773 #undef trcKERNEL_HOOKS_SET_OBJECT_STATE
774 #define trcKERNEL_HOOKS_SET_OBJECT_STATE(CLASS, pxObject, STATE) \
775 	prvTraceSetObjectState(TRACE_GET_OBJECT_TRACE_CLASS(CLASS, pxObject), TRACE_GET_OBJECT_NUMBER(CLASS, pxObject), (uint8_t)STATE);
776 
777 /* This macro will flag a certain task as a finished instance */
778 #undef trcKERNEL_HOOKS_SET_TASK_INSTANCE_FINISHED
779 #define trcKERNEL_HOOKS_SET_TASK_INSTANCE_FINISHED() \
780 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
781 		prvTraceSetTaskInstanceFinished(TRACE_GET_TASK_NUMBER(TRACE_GET_CURRENT_TASK()));
782 
783 #if (TRC_CFG_INCLUDE_READY_EVENTS == 1)
784 /* This macro will create an event to indicate that a task became Ready */
785 #undef trcKERNEL_HOOKS_MOVED_TASK_TO_READY_STATE
786 #define trcKERNEL_HOOKS_MOVED_TASK_TO_READY_STATE(pxTCB) \
787 	if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
788 		prvTraceStoreTaskReady(TRACE_GET_TASK_NUMBER(pxTCB));
789 #else /*(TRC_CFG_INCLUDE_READY_EVENTS == 1)*/
790 #undef trcKERNEL_HOOKS_MOVED_TASK_TO_READY_STATE
791 #define trcKERNEL_HOOKS_MOVED_TASK_TO_READY_STATE(pxTCB)
792 #endif /*(TRC_CFG_INCLUDE_READY_EVENTS == 1)*/
793 
794 /* This macro will update the internal tick counter and call prvTracePortGetTimeStamp(0) to update the internal counters */
795 #undef trcKERNEL_HOOKS_INCREMENT_TICK
796 #define trcKERNEL_HOOKS_INCREMENT_TICK() \
797 	{ \
798 		extern uint32_t uiTraceTickCount; \
799 		uiTraceTickCount++; \
800 		prvTracePortGetTimeStamp(0); \
801 	}
802 
803 #if (TRC_CFG_INCLUDE_OSTICK_EVENTS == 1)
804 /* This macro will create an event indicating that the OS tick count has increased */
805 #undef trcKERNEL_HOOKS_NEW_TIME
806 #define trcKERNEL_HOOKS_NEW_TIME(SERVICE, xValue) \
807 	prvTraceStoreKernelCallWithNumericParamOnly(SERVICE, xValue);
808 #else /*(TRC_CFG_INCLUDE_OSTICK_EVENTS == 1)*/
809 #undef trcKERNEL_HOOKS_NEW_TIME
810 #define trcKERNEL_HOOKS_NEW_TIME(SERVICE, xValue)
811 #endif /*(TRC_CFG_INCLUDE_OSTICK_EVENTS == 1)*/
812 
813 /* This macro will create a task switch event to the currently executing task */
814 #undef trcKERNEL_HOOKS_TASK_SWITCH
815 #define trcKERNEL_HOOKS_TASK_SWITCH( pxTCB ) \
816 	if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
817 		prvTraceStoreTaskswitch(TRACE_GET_TASK_NUMBER(pxTCB));
818 
819 /* This macro will create an event to indicate that the task has been suspended */
820 #undef trcKERNEL_HOOKS_TASK_SUSPEND
821 #define trcKERNEL_HOOKS_TASK_SUSPEND(SERVICE, pxTCB) \
822 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
823 		if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
824 			prvTraceStoreKernelCall(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB)); \
825 	prvTraceSetTaskInstanceFinished((uint8_t)TRACE_GET_TASK_NUMBER(pxTCB));
826 
827 /* This macro will create an event to indicate that a task has called a wait/delay function */
828 #undef trcKERNEL_HOOKS_TASK_DELAY
829 #define trcKERNEL_HOOKS_TASK_DELAY(SERVICE, pxTCB, xValue) \
830 	if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
831 	{ \
832 		prvTraceStoreKernelCallWithNumericParamOnly(SERVICE, xValue); \
833 		prvTraceSetTaskInstanceFinished((uint8_t)TRACE_GET_TASK_NUMBER(pxTCB)); \
834 	}
835 
836 /* This macro will create an event to indicate that a task has gotten its priority changed */
837 #undef trcKERNEL_HOOKS_TASK_PRIORITY_CHANGE
838 #define trcKERNEL_HOOKS_TASK_PRIORITY_CHANGE(SERVICE, pxTCB, uxNewPriority) \
839 	if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
840 	{ \
841 		prvTraceStoreKernelCallWithParam(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), prvTraceGetPriorityProperty(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB)));\
842 		prvTraceSetPriorityProperty(TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB), (uint8_t)uxNewPriority); \
843 	}
844 
845 /* This macro will create an event to indicate that the task has been resumed */
846 #undef trcKERNEL_HOOKS_TASK_RESUME
847 #define trcKERNEL_HOOKS_TASK_RESUME(SERVICE, pxTCB) \
848 	if (TRACE_GET_OBJECT_FILTER(TASK, TRACE_GET_CURRENT_TASK()) & CurrentFilterMask) \
849 		if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
850 			prvTraceStoreKernelCall(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB));
851 
852 #undef trcKERNEL_HOOKS_TASK_RESUME_FROM_ISR
853 #define trcKERNEL_HOOKS_TASK_RESUME_FROM_ISR(SERVICE, pxTCB) \
854 	if (TRACE_GET_OBJECT_FILTER(TASK, pxTCB) & CurrentFilterMask) \
855 		prvTraceStoreKernelCall(SERVICE, TRACE_CLASS_TASK, TRACE_GET_TASK_NUMBER(pxTCB));
856 
857 #if !defined TRC_CFG_INCLUDE_READY_EVENTS || TRC_CFG_INCLUDE_READY_EVENTS == 1
858 	void prvTraceSetReadyEventsEnabled(int status);
859 	void prvTraceStoreTaskReady(traceHandle handle);
860 #else
861 	#define prvTraceSetReadyEventsEnabled(status)
862 #endif
863 
864 void prvTraceStoreLowPower(uint32_t flag);
865 
866 void prvTraceStoreTaskswitch(traceHandle task_handle);
867 
868 
869 #if (TRC_CFG_SCHEDULING_ONLY == 0)
870 
871 void prvTraceStoreKernelCall(uint32_t eventcode, traceObjectClass objectClass, uint32_t byteParam);
872 
873 void prvTraceStoreKernelCallWithNumericParamOnly(uint32_t evtcode, uint32_t param);
874 
875 void prvTraceStoreKernelCallWithParam(uint32_t evtcode, traceObjectClass objectClass,
876 									uint32_t objectNumber, uint32_t param);
877 #else
878 
879 #define prvTraceStoreKernelCall(eventcode, objectClass, byteParam) {}
880 #define prvTraceStoreKernelCallWithNumericParamOnly(evtcode, param) {}
881 #define prvTraceStoreKernelCallWithParam(evtcode, objectClass, objectNumber, param) {}
882 
883 #endif
884 
885 /*******************************************************************************
886 * prvTraceInitTraceData
887 *
888 * Allocates and initializes the recorder data structure, based on the constants
889 * in trcConfig.h. This allows for allocating the data on the heap, instead of
890 * using a static declaration.
891 ******************************************************************************/
892 void prvTraceInitTraceData(void);
893 
894 void prvTraceSetTaskInstanceFinished(traceHandle handle);
895 
896 void prvTraceSetPriorityProperty(uint8_t objectclass, traceHandle id, uint8_t value);
897 
898 uint8_t prvTraceGetPriorityProperty(uint8_t objectclass, traceHandle id);
899 
900 void prvTraceSetObjectState(uint8_t objectclass, traceHandle id, uint8_t value);
901 
902 void prvMarkObjectAsUsed(traceObjectClass objectclass, traceHandle handle);
903 
904 void prvTraceStoreObjectNameOnCloseEvent(uint8_t evtcode, traceHandle handle,
905 										traceObjectClass objectclass);
906 
907 void prvTraceStoreObjectPropertiesOnCloseEvent(uint8_t evtcode, traceHandle handle,
908 											 traceObjectClass objectclass);
909 
910 /*******************************************************************************
911 * prvTraceInitTimestamps
912 *
913 * This will only be called once the recorder is started, and we can assume that
914 * all hardware has been initialized.
915 ******************************************************************************/
916 void prvTraceInitTimestamps(void);
917 
918 /* Internal constants for task state */
919 #define TASK_STATE_INSTANCE_NOT_ACTIVE 0
920 #define TASK_STATE_INSTANCE_ACTIVE 1
921 
922 
923 #if (TRC_CFG_INCLUDE_ISR_TRACING == 0)
924 
925 #undef vTraceSetISRProperties
926 #define vTraceSetISRProperties(handle, name, priority) (void)(handle), (void)(name), (void)(priority) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
927 
928 #undef vTraceStoreISRBegin
929 #define vTraceStoreISRBegin(x) (void)(x)
930 
931 #undef vTraceStoreISREnd
932 #define vTraceStoreISREnd(x) (void)(x)
933 
934 #undef xTraceSetISRProperties
935 #define xTraceSetISRProperties(name, priority) ((void)(name), (void)(priority), (traceHandle)0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
936 
937 #endif /*(TRC_CFG_INCLUDE_ISR_TRACING == 0)*/
938 
939 /*******************************************************************************
940  * xTraceGetTraceBuffer
941  *
942  * Returns a pointer to the recorder data structure. Use this together with
943  * uiTraceGetTraceBufferSize if you wish to implement an own store/upload
944  * solution, e.g., in case a debugger connection is not available for uploading
945  * the data.
946  ******************************************************************************/
947 void* xTraceGetTraceBuffer(void);
948 
949 /*******************************************************************************
950  * uiTraceGetTraceBufferSize
951  *
952  * Gets the size of the recorder data structure. For use together with
953  * vTraceGetTraceBuffer if you wish to implement an own store/upload solution,
954  * e.g., in case a debugger connection is not available for uploading the data.
955  ******************************************************************************/
956 uint32_t uiTraceGetTraceBufferSize(void);
957 
958 #if (TRC_CFG_SCHEDULING_ONLY == 1)
959 #undef TRC_CFG_INCLUDE_USER_EVENTS
960 #define TRC_CFG_INCLUDE_USER_EVENTS 0
961 #endif /*(TRC_CFG_SCHEDULING_ONLY == 1)*/
962 
963 #if ((TRC_CFG_INCLUDE_USER_EVENTS == 1) && (TRC_CFG_SCHEDULING_ONLY == 0))
964 
965 #if (TRC_CFG_USE_SEPARATE_USER_EVENT_BUFFER == 1)
966 traceUBChannel xTraceRegisterUBChannel(traceString channel, traceString formatStr);
967 void vTraceUBData(traceUBChannel channel, ...);
968 void vTraceUBEvent(traceUBChannel channel);
969 #endif /*(TRC_CFG_USE_SEPARATE_USER_EVENT_BUFFER == 1)*/
970 
971 #else /*((TRC_CFG_INCLUDE_USER_EVENTS == 1) && (TRC_CFG_SCHEDULING_ONLY == 0))*/
972 
973 #undef vTracePrint
974 #define vTracePrint(chn, ...) (void)(chn)
975 #undef vTracePrintF
976 #define vTracePrintF(chn, fmt, ...) (void)(chn), (void)(fmt) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
977 #undef vTraceVPrintF
978 #define vTraceVPrintF(chn, formatStr, vl) (void)(chn), (void)(formatStr), (void)(vl) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
979 #undef xTraceRegisterString
980 #define xTraceRegisterString(x) ((void)(x), (traceString)0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
981 #undef xTraceRegisterChannelFormat
982 #define xTraceRegisterChannelFormat(eventLabel, formatStr) ((void)(eventLabel), (void)(formatStr), 0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
983 #undef vTraceUBData
984 #define vTraceUBData(label, ...) (void)(label)
985 #undef vTraceChannelPrint
986 #define vTraceChannelPrint(label) (void)(label)
987 
988 #endif /*(TRC_CFG_INCLUDE_USER_EVENTS == 1)*/
989 
990 #define NEventCodes 0x100
991 
992 /* Our local critical sections for the recorder */
993 #define trcCRITICAL_SECTION_BEGIN() {TRACE_ENTER_CRITICAL_SECTION(); recorder_busy++;}
994 #define trcCRITICAL_SECTION_END() {recorder_busy--; TRACE_EXIT_CRITICAL_SECTION();}
995 
996 #if (TRC_CFG_HARDWARE_PORT == TRC_HARDWARE_PORT_ARM_Cortex_M)
997 	#define trcSR_ALLOC_CRITICAL_SECTION_ON_CORTEX_M_ONLY TRACE_ALLOC_CRITICAL_SECTION
998 	#define trcCRITICAL_SECTION_BEGIN_ON_CORTEX_M_ONLY trcCRITICAL_SECTION_BEGIN
999 	#define trcCRITICAL_SECTION_END_ON_CORTEX_M_ONLY trcCRITICAL_SECTION_END
1000 #else
1001 	#define trcSR_ALLOC_CRITICAL_SECTION_ON_CORTEX_M_ONLY() {}
1002 	#define trcCRITICAL_SECTION_BEGIN_ON_CORTEX_M_ONLY() recorder_busy++;
1003 	#define trcCRITICAL_SECTION_END_ON_CORTEX_M_ONLY() recorder_busy--;
1004 #endif
1005 
1006 /******************************************************************************
1007  * ObjectHandleStack
1008  * This data-structure is used to provide a mechanism for 1-byte trace object
1009  * handles. This way, only 1 byte is necessary instead of 4 bytes (a pointer)
1010  * when storing a reference to an object. This allows for up to 255 objects of
1011  * each object class active at any given moment. There can be more "historic"
1012  * objects, that have been deleted - that number is only limited by the size of
1013  * the symbol table.
1014  *
1015  * Note that handle zero (0) is not used, it is a code for an invalid handle.
1016  *
1017  * This data structure keeps track of the FREE handles, not the handles in use.
1018  * This data structure contains one stack per object class. When a handle is
1019  * allocated to an object, the next free handle is popped from the stack. When
1020  * a handle is released (on object delete), it is pushed back on the stack.
1021  * Note that there is no initialization code that pushed the free handles
1022  * initially, that is not necessary due to the following optimization:
1023  *
1024  * The stack of handles (objectHandles) is initially all zeros. Since zero
1025  * is not a valid handle, that is a signal of additional handles needed.
1026  * If a zero is received when popping a new handle, it is replaced by the
1027  * index of the popped handle instead.
1028  *****************************************************************************/
1029 typedef struct
1030 {
1031 	/* For each object class, the index of the next handle to allocate */
1032 	uint16_t indexOfNextAvailableHandle[ TRACE_NCLASSES ];
1033 
1034 	/* The lowest index of this class (constant) */
1035 	uint16_t lowestIndexOfClass[ TRACE_NCLASSES ];
1036 
1037 	/* The highest index of this class (constant) */
1038 	uint16_t highestIndexOfClass[ TRACE_NCLASSES ];
1039 
1040 	/* The highest use count for this class (for statistics) */
1041 	uint16_t handleCountWaterMarksOfClass[ TRACE_NCLASSES ];
1042 
1043 	/* The free object handles - a set of stacks within this array */
1044 	traceHandle objectHandles[ TRACE_KERNEL_OBJECT_COUNT ];
1045 
1046 } objectHandleStackType;
1047 
1048 extern objectHandleStackType objectHandleStacks;
1049 
1050 /******************************************************************************
1051  * Object Property Table
1052  * The Object Table contains name and other properties of the objects (tasks,
1053  * queues, mutexes, etc). The below data structures defines the properties of
1054  * each object class and are used to cast the byte buffer into a cleaner format.
1055  *
1056  * The values in the object table are continuously overwritten and always
1057  * represent the current state. If a property is changed during runtime, the OLD
1058  * value should be stored in the trace buffer, not the new value (since the new
1059  * value is found in the Object Property Table).
1060  *
1061  * For close events this mechanism is the old names are stored in the symbol
1062  * table), for "priority set" (the old priority is stored in the event data)
1063  * and for "isActive", where the value decides if the task switch event type
1064  * should be "new" or "resume".
1065  ******************************************************************************/
1066 
1067 typedef struct
1068 {
1069 	/* = NCLASSES */
1070 	uint32_t NumberOfObjectClasses;
1071 
1072 	uint32_t ObjectPropertyTableSizeInBytes;
1073 
1074 	/* This is used to calculate the index in the dynamic object table
1075 	(handle - 1 - nofStaticObjects = index)*/
1076 #if (TRC_CFG_USE_16BIT_OBJECT_HANDLES == 1)
1077 	traceHandle NumberOfObjectsPerClass[2*((TRACE_NCLASSES+1)/2)];
1078 #else
1079 	traceHandle NumberOfObjectsPerClass[4*((TRACE_NCLASSES+3)/4)];
1080 #endif
1081 
1082 	/* Allocation size rounded up to the closest multiple of 4 */
1083 	uint8_t NameLengthPerClass[ 4*((TRACE_NCLASSES+3)/4) ];
1084 
1085 	uint8_t TotalPropertyBytesPerClass[ 4*((TRACE_NCLASSES+3)/4) ];
1086 
1087 	/* Allocation size rounded up to the closest multiple of 2 */
1088 	uint16_t StartIndexOfClass[ 2*((TRACE_NCLASSES+1)/2) ];
1089 
1090 	/* The actual handles issued, should be Initiated to all zeros */
1091 	uint8_t objbytes[ 4*((TRACE_OBJECT_TABLE_SIZE+3)/4) ];
1092 } ObjectPropertyTableType;
1093 
1094 /* Symbol table data structure */
1095 typedef struct
1096 {
1097 	/* = SYMBOL_HISTORY_TABLE_SIZE_IN_BYTES */
1098 	uint32_t symTableSize;
1099 
1100 	/* Entry 0 is reserved. Any reference to entry 0 implies NULL*/
1101 	uint32_t nextFreeSymbolIndex;
1102 
1103 	/* Size rounded up to closest multiple of 4, to avoid alignment issues*/
1104 	uint8_t symbytes[4*(((TRC_CFG_SYMBOL_TABLE_SIZE)+3)/4)];
1105 
1106 	/* Used for lookups - Up to 64 linked lists within the symbol table
1107 	connecting all entries with the same 6 bit checksum.
1108 	This field holds the current list heads. Should be initiated to zeros */
1109 	uint16_t latestEntryOfChecksum[64];
1110 } symbolTableType;
1111 
1112 
1113 /*******************************************************************************
1114  * The data structures of the different events, all 4 bytes long
1115  ******************************************************************************/
1116 
1117 typedef struct
1118 {
1119 	uint8_t type;
1120 	uint8_t objHandle;
1121 	uint16_t dts;	/* differential timestamp - time since last event */
1122 } TSEvent, TREvent;
1123 
1124 typedef struct
1125 {
1126 	uint8_t type;
1127 	uint8_t dummy;
1128 	uint16_t dts;	/* differential timestamp - time since last event */
1129 } LPEvent;
1130 
1131 typedef struct
1132 {
1133 	uint8_t type;
1134 	uint8_t objHandle;
1135 	uint16_t dts;	/* differential timestamp - time since last event */
1136 } KernelCall;
1137 
1138 typedef struct
1139 {
1140 	uint8_t type;
1141 	uint8_t objHandle;
1142 	uint8_t param;
1143 	uint8_t dts;	/* differential timestamp - time since last event */
1144 } KernelCallWithParamAndHandle;
1145 
1146 typedef struct
1147 {
1148 	uint8_t type;
1149 	uint8_t dts;	/* differential timestamp - time since last event */
1150 	uint16_t param;
1151 } KernelCallWithParam16;
1152 
1153 typedef struct
1154 {
1155 	uint8_t type;
1156 	uint8_t objHandle;		/* the handle of the closed object */
1157 	uint16_t symbolIndex;	/* the name of the closed object */
1158 } ObjCloseNameEvent;
1159 
1160 typedef struct
1161 {
1162 	uint8_t type;
1163 	uint8_t arg1;
1164 	uint8_t arg2;
1165 	uint8_t arg3;
1166 } ObjClosePropEvent;
1167 
1168 typedef struct
1169 {
1170 	uint8_t type;
1171 	uint8_t unused1;
1172 	uint8_t unused2;
1173 	uint8_t dts;
1174 } TaskInstanceStatusEvent;
1175 
1176 typedef struct
1177 {
1178 	uint8_t type;
1179 	uint8_t dts;
1180 	uint16_t payload;		 /* the name of the user event */
1181 } UserEvent;
1182 
1183 typedef struct
1184 {
1185 	uint8_t type;
1186 
1187 	/* 8 bits extra for storing DTS, if it does not fit in ordinary event
1188 	(this one is always MSB if used) */
1189 	uint8_t xts_8;
1190 
1191 	/* 16 bits extra for storing DTS, if it does not fit in ordinary event. */
1192 	uint16_t xts_16;
1193 } XTSEvent;
1194 
1195 typedef struct
1196 {
1197 	uint8_t type;
1198 
1199 	uint8_t xps_8;
1200 	uint16_t xps_16;
1201 } XPSEvent;
1202 
1203 typedef struct{
1204 	uint8_t type;
1205 	uint8_t dts;
1206 	uint16_t size;
1207 } MemEventSize;
1208 
1209 typedef struct{
1210 	uint8_t type;
1211 	uint8_t addr_high;
1212 	uint16_t addr_low;
1213 } MemEventAddr;
1214 
1215 /*******************************************************************************
1216  * The separate user event buffer structure. Can be enabled in trcConfig.h.
1217  ******************************************************************************/
1218 
1219 #if (TRC_CFG_USE_SEPARATE_USER_EVENT_BUFFER == 1)
1220 typedef struct
1221 {
1222 	traceString name;
1223 	traceString defaultFormat;
1224 } ChannelFormatPair;
1225 
1226 typedef struct
1227 {
1228 	uint16_t bufferID;
1229 	uint16_t version;
1230 	uint32_t wraparoundCounter;
1231 	uint32_t numberOfSlots;
1232 	uint32_t nextSlotToWrite;
1233 	uint8_t numberOfChannels;
1234 	uint8_t padding1;
1235 	uint8_t padding2;
1236 	uint8_t padding3;
1237 	ChannelFormatPair channels[(TRC_CFG_UB_CHANNELS)+1];
1238 	uint8_t channelBuffer[((TRC_CFG_SEPARATE_USER_EVENT_BUFFER_SIZE) + 3) & 0xFFFFFFFC]; /* 1 byte per slot, with padding for 4 byte alignment */
1239 	uint8_t dataBuffer[(TRC_CFG_SEPARATE_USER_EVENT_BUFFER_SIZE) * 4]; /* 4 bytes per slot */
1240 
1241 } UserEventBuffer;
1242 #endif /* (TRC_CFG_USE_SEPARATE_USER_EVENT_BUFFER == 1) */
1243 
1244 /*******************************************************************************
1245  * The main data structure, read by Tracealyzer from the RAM dump
1246  ******************************************************************************/
1247 
1248 typedef struct
1249 {
1250 	volatile uint8_t startmarker0; /* Volatile is important, see init code. */
1251 	volatile uint8_t startmarker1;
1252 	volatile uint8_t startmarker2;
1253 	volatile uint8_t startmarker3;
1254 	volatile uint8_t startmarker4;
1255 	volatile uint8_t startmarker5;
1256 	volatile uint8_t startmarker6;
1257 	volatile uint8_t startmarker7;
1258 	volatile uint8_t startmarker8;
1259 	volatile uint8_t startmarker9;
1260 	volatile uint8_t startmarker10;
1261 	volatile uint8_t startmarker11;
1262 
1263 	/* Used to determine Kernel and Endianess */
1264 	uint16_t version;
1265 
1266 	/* Currently 7 */
1267 	uint8_t minor_version;
1268 
1269 	/* This should be 0 if lower IRQ priority values implies higher priority
1270 	levels, such as on ARM Cortex M. If the opposite scheme is used, i.e.,
1271 	if higher IRQ priority values means higher priority, this should be 1. */
1272 	uint8_t irq_priority_order;
1273 
1274 	/* sizeof(RecorderDataType) - just for control */
1275 	uint32_t filesize;
1276 
1277 	/* Current number of events recorded */
1278 	uint32_t numEvents;
1279 
1280 	/* The buffer size, in number of event records */
1281 	uint32_t maxEvents;
1282 
1283 	/* The event buffer index, where to write the next event */
1284 	uint32_t nextFreeIndex;
1285 
1286 	/* 1 if the buffer is full, 0 otherwise */
1287 	uint32_t bufferIsFull;
1288 
1289 	/* The frequency of the clock/timer/counter used as time base */
1290 	uint32_t frequency;
1291 
1292 	/* The absolute timestamp of the last stored event, in the native
1293 	timebase, modulo frequency! */
1294 	uint32_t absTimeLastEvent;
1295 
1296 	/* The number of seconds in total - lasts for 136 years */
1297 	uint32_t absTimeLastEventSecond;
1298 
1299 	/* 1 if the recorder has been started, 0 if not yet started or stopped.
1300 	This is a 32 bit variable due to alignment issues. */
1301 	uint32_t recorderActive;
1302 
1303 	/* If > 0, tells the maximum time between two traced ISRs that execute
1304 	back-to-back. If the time between vTraceStoreISREnd and a directly
1305 	following vTraceISRBegin is above isrTailchainingThreshold, we assume a
1306 	return to the previous context in between the ISRs, otherwise we assume
1307 	the have executed back-to-back and don't show any fragment of the previous
1308 	context in between. */
1309 	uint32_t isrTailchainingThreshold;
1310 
1311 	/* The maximum amount of heap memory that was allocated */
1312 	uint32_t heapMemMaxUsage;
1313 
1314 	/* The amount of heap memory used */
1315 	uint32_t heapMemUsage;
1316 
1317 	/* 0xF0F0F0F0 - for control only */
1318 	int32_t debugMarker0;
1319 
1320 	/* Set to value of TRC_CFG_USE_16BIT_OBJECT_HANDLES */
1321 	uint32_t isUsing16bitHandles;
1322 
1323 	/* The Object Property Table holds information about currently active
1324 	tasks, queues, and other recorded objects. This is updated on each
1325 	create call and includes object name and other properties. */
1326 	ObjectPropertyTableType ObjectPropertyTable;
1327 
1328 	/* 0xF1F1F1F1 - for control only */
1329 	int32_t debugMarker1;
1330 
1331 	/* The Symbol Table stores strings for User Events and is also used to
1332 	store names of deleted objects, which still may be in the trace but no
1333 	longer are available. */
1334 	symbolTableType SymbolTable;
1335 
1336 	/* For inclusion of float support, and for endian detection of floats.
1337 	The value should be (float)1 or (uint32_t)0 */
1338 #if (TRC_CFG_INCLUDE_FLOAT_SUPPORT == 1)
1339 	float exampleFloatEncoding;
1340 #else
1341 	uint32_t exampleFloatEncoding;
1342 #endif
1343 	/* This is non-zero if an internal error occurred in the recorder, e.g., if
1344 	one of the Nxxx constants was too small. The systemInfo string will then
1345 	contain an error message that is displayed when attempting to view the
1346 	trace file. */
1347 	uint32_t internalErrorOccured;
1348 
1349 	/* 0xF2F2F2F2 - for control only */
1350 	int32_t debugMarker2;
1351 
1352 	/* Error messages from the recorder. */
1353 	char systemInfo[80];
1354 
1355 	/* 0xF3F3F3F3 - for control only */
1356 	int32_t debugMarker3;
1357 
1358 	/* The event data, in 4-byte records */
1359 	uint8_t eventData[ (TRC_CFG_EVENT_BUFFER_SIZE) * 4 ];
1360 
1361 #if (TRC_CFG_USE_SEPARATE_USER_EVENT_BUFFER == 1)
1362 	UserEventBuffer userEventBuffer;
1363 #endif
1364 
1365 	/* This should always be 0 */
1366 	uint32_t endOfSecondaryBlocks;
1367 
1368 	uint8_t endmarker0;
1369 	uint8_t endmarker1;
1370 	uint8_t endmarker2;
1371 	uint8_t endmarker3;
1372 	uint8_t endmarker4;
1373 	uint8_t endmarker5;
1374 	uint8_t endmarker6;
1375 	uint8_t endmarker7;
1376 	uint8_t endmarker8;
1377 	uint8_t endmarker9;
1378 	uint8_t endmarker10;
1379 	uint8_t endmarker11;
1380 } RecorderDataType;
1381 
1382 extern RecorderDataType* RecorderDataPtr;
1383 
1384 /* Internal functions */
1385 
1386 /* Signal an error. */
1387 void prvTraceError(const char* msg);
1388 
1389 /*******************************************************************************
1390  * prvTracePortGetTimeStamp
1391  *
1392  * Returns the current time based on the HWTC macros which provide a hardware
1393  * isolation layer towards the hardware timer/counter.
1394  *
1395  * The HWTC macros and prvTracePortGetTimeStamp is the main porting issue
1396  * or the trace recorder library. Typically you should not need to change
1397  * the code of prvTracePortGetTimeStamp if using the HWTC macros.
1398  *
1399  ******************************************************************************/
1400 void prvTracePortGetTimeStamp(uint32_t *puiTimestamp);
1401 
1402 traceHandle prvTraceGetObjectHandle(traceObjectClass objectclass);
1403 
1404 void prvTraceFreeObjectHandle(traceObjectClass objectclass,
1405 							traceHandle handle);
1406 
1407 /* Private function. Use the public functions in trcKernelPort.h */
1408 void prvTraceSetObjectName(traceObjectClass objectclass,
1409 							traceHandle handle,
1410 							const char* name);
1411 
1412 /* Internal macros */
1413 
1414 #define TRACE_PROPERTY_NAME_GET(objectclass, objecthandle) \
1415 (const char*)(& RecorderDataPtr->ObjectPropertyTable.objbytes \
1416 [uiIndexOfObject(objecthandle, objectclass)])
1417 
1418 #define TRACE_PROPERTY_OBJECT_STATE(objectclass, handle) \
1419 RecorderDataPtr->ObjectPropertyTable.objbytes[uiIndexOfObject(handle, objectclass) \
1420 + RecorderDataPtr->ObjectPropertyTable.NameLengthPerClass[objectclass]]
1421 
1422 #define TRACE_PROPERTY_ACTOR_PRIORITY(objectclass, handle) \
1423 RecorderDataPtr->ObjectPropertyTable.objbytes[uiIndexOfObject(handle, objectclass) \
1424 + RecorderDataPtr->ObjectPropertyTable.NameLengthPerClass[objectclass] + 1]
1425 
1426 /* DEBUG ASSERTS */
1427 #if defined TRC_CFG_USE_TRACE_ASSERT && TRC_CFG_USE_TRACE_ASSERT != 0
1428 #define TRACE_ASSERT(eval, msg, defRetVal) \
1429 if (!(eval)) \
1430 { \
1431 	prvTraceError("TRACE_ASSERT: " msg); \
1432 	return defRetVal; \
1433 }
1434 #else
1435 #define TRACE_ASSERT(eval, msg, defRetVal)
1436 #endif
1437 
1438 #endif /*(TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_SNAPSHOT)*/
1439 
1440 #if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)
1441 
1442 /******************************************************************************
1443  * Default values for STREAM PORT macros
1444  *
1445  * As a normal user, this is nothing you don't need to bother about. This is
1446  * only important if you want to define your own custom streaming interface.
1447  *
1448  * You may override these in your own trcStreamingPort.h to create a custom
1449  * stream port, and thereby stream the trace on any host-target interface.
1450  * These default values are suitable for most cases, except the J-Link port.
1451  ******************************************************************************/
1452 
1453 /******************************************************************************
1454  * TRC_STREAM_PORT_USE_INTERNAL_BUFFER
1455  *
1456  * There are two kinds of stream ports, those that store the event to the
1457  * internal buffer (with periodic flushing by the TzCtrl task) and those that
1458  * write directly to the streaming interface. Most stream ports use the
1459  * recorder's internal buffer, except for the SEGGER J-Link port (also uses a
1460  * RAM buffer, but one defined in the SEGGER code).
1461  *
1462  * If the stream port (trcStreamingPort.h) defines this as zero (0), it is
1463  * expected to transmit the data directly using TRC_STREAM_PORT_COMMIT_EVENT.
1464  * Otherwise it is expected that the trace data is stored in the internal buffer
1465  * and the TzCtrl task will then send the buffer pages when they become full.
1466  ******************************************************************************/
1467 #ifndef TRC_STREAM_PORT_USE_INTERNAL_BUFFER
1468 #define TRC_STREAM_PORT_USE_INTERNAL_BUFFER 1
1469 #endif
1470 
1471  /******************************************************************************
1472  * TRC_STREAM_PORT_ON_TRACE_BEGIN
1473  *
1474  * Defining any actions needed in the stream port when the recording is activated.
1475  *******************************************************************************/
1476 #ifndef TRC_STREAM_PORT_ON_TRACE_BEGIN
1477 	#define TRC_STREAM_PORT_ON_TRACE_BEGIN() /* Do nothing */
1478 #endif
1479 
1480  /******************************************************************************
1481  * TRC_STREAM_PORT_ON_TRACE_END
1482  *
1483  * Defining any actions needed in the stream port when the tracing stops.
1484  * Empty by default.
1485  *******************************************************************************/
1486 #ifndef TRC_STREAM_PORT_ON_TRACE_END
1487 #define TRC_STREAM_PORT_ON_TRACE_END() /* Do nothing */
1488 #endif
1489 
1490  /******************************************************************************
1491  * TRC_STREAM_PORT_ALLOCATE_EVENT
1492  *
1493  * This macro is used to allocate memory for each event record, just before
1494  * assigning the record fields.
1495  * Depending on "TRC_STREAM_PORT_USE_INTERNAL_BUFFER", this either allocates
1496  * space in the paged event buffer, or on the local stack. In the latter case,
1497  * the COMMIT event is used to write the data to the streaming interface.
1498  *
1499  * The BLOCKING option is only used within vTraceEnable, to ensure the full
1500  * header, object table and symbol table is transferred without data loss.
1501  ******************************************************************************/
1502 #ifndef TRC_STREAM_PORT_ALLOCATE_EVENT
1503 #if (TRC_STREAM_PORT_USE_INTERNAL_BUFFER == 1)
1504 	#define TRC_STREAM_PORT_ALLOCATE_EVENT(_type, _ptrData, _size) \
1505 	_type* _ptrData; \
1506 	_ptrData = (_type*)prvPagedEventBufferGetWritePointer(_size);
1507 
1508 	/**************************************************************************
1509      If your application gets stuck in TRC_STREAM_PORT_ALLOCATE_EVENT_BLOCKING,
1510      it means it fails to transfer the header, object table or symbol table
1511      during vTraceEnable.
1512      This occurs if the trace buffer is too small to accomodate these in full,
1513      i.e. before the streaming interface is started and begins to transfer.
1514 
1515 	 Note that this is intentionally blocking to avoid data loss, but only
1516      used within vTraceEnable.
1517     **************************************************************************/
1518 
1519 	#define TRC_STREAM_PORT_ALLOCATE_EVENT_BLOCKING(_type, _ptrData, _size) \
1520 	_type* _ptrData; \
1521 	do { _ptrData = (_type*)prvPagedEventBufferGetWritePointer(_size); } while (_ptrData == NULL);
1522 
1523 #else
1524 	#define TRC_STREAM_PORT_ALLOCATE_EVENT(_type, _ptrData, _size) _type *_ptrData = (_type*)&xEventDataDummy;
1525 	#define TRC_STREAM_PORT_ALLOCATE_EVENT_BLOCKING(_type, _ptrData, _size) _type *_ptrData = (_type*)&xEventDataDummy;
1526 #endif
1527 #endif
1528 
1529  /******************************************************************************
1530  * TRC_STREAM_PORT_ALLOCATE_DYNAMIC_EVENT
1531  *
1532  * This macro is used to allocate memory for each event record, just before
1533  * assigning the record fields.
1534  * This has the same purpose as TRC_STREAM_PORT_ALLOCATE_EVENT and by default
1535  * it has the same definition as TRC_STREAM_PORT_ALLOCATE_EVENT. This is used
1536  * for events carrying variable-sized payload, such as strings.
1537  * In the SEGGER RTT port, we need this in order to make a worst-case
1538  * allocation on the stack.
1539  ******************************************************************************/
1540 #ifndef TRC_STREAM_PORT_ALLOCATE_DYNAMIC_EVENT
1541 #if (TRC_STREAM_PORT_USE_INTERNAL_BUFFER == 1)
1542 	#define TRC_STREAM_PORT_ALLOCATE_DYNAMIC_EVENT(_type, _ptrData, _size) TRC_STREAM_PORT_ALLOCATE_EVENT(_type, _ptrData, _size) /* We do the same thing as for non-dynamic event sizes */
1543 #else
1544 	#define TRC_STREAM_PORT_ALLOCATE_DYNAMIC_EVENT(_type, _ptrData, _size) _type _tmpArray[sizeof(largestEventType) / sizeof(_type)]; _type* _ptrData = _tmpArray;
1545 #endif
1546 #endif
1547 
1548  /******************************************************************************
1549  * TRC_STREAM_PORT_COMMIT_EVENT
1550  * TRC_STREAM_PORT_COMMIT_EVENT_BLOCKING
1551  *
1552  * The COMMIT macro is used to write a single event record directly to the
1553  * streaming inteface, without first storing the event in the internal buffer.
1554  * This is currently only used in the SEGGER J-Link RTT port.
1555  *
1556  * The BLOCKING version is used when sending the initial trace header, which is
1557  * important to receive in full. Otherwise, when using non-blocking RTT transfer
1558  * this may be corrupted if using an RTT buffer smaller than the combined size
1559  * of the header, object table and symbol table.
1560  *
1561  * This relies on the TRC_STREAM_PORT_WRITE_DATA macro, defined in by the
1562  * stream port in trcStreamingPort.h. The COMMIT macro calls
1563  * prvTraceWarning(TRC_STREAM_PORT_WRITE_DATA) if a non-zero value is returned
1564  * from TRC_STREAM_PORT_WRITE_DATA. If zero (0) is returned, it is assumed
1565  * that all data was successfully written.
1566  *
1567  * In ports using the internal buffer, this macro has no purpose as the events
1568  * are written to the internal buffer instead. They are then flushed to the
1569  * streaming interface in the TzCtrl task using TRC_STREAM_PORT_WRITE_DATA.
1570  ******************************************************************************/
1571 #ifndef TRC_STREAM_PORT_COMMIT_EVENT
1572 #if (TRC_STREAM_PORT_USE_INTERNAL_BUFFER == 1)
1573 	#define TRC_STREAM_PORT_COMMIT_EVENT(_ptrData, _size) /* Not used */
1574 	#define TRC_STREAM_PORT_COMMIT_EVENT_BLOCKING(_ptrData, _size) /* Not used */
1575 #else
1576 	#define TRC_STREAM_PORT_COMMIT_EVENT(_ptrData, _size) \
1577 	{ \
1578 		int32_t dummy = 0; \
1579 		(void)dummy; \
1580 		if (TRC_STREAM_PORT_WRITE_DATA(_ptrData, _size, &dummy) != 0) \
1581 		{ \
1582 			vTraceStop(); \
1583 		} \
1584 	}
1585 
1586 	/* Only used during vTraceEnable */
1587 	#define TRC_STREAM_PORT_COMMIT_EVENT_BLOCKING(_ptrData, _size) \
1588 	{ \
1589 		char* ptrWrite = (char*)_ptrData; \
1590 		uint32_t writeSize = _size; \
1591 		uint32_t attemptCounter = 0; \
1592 		int32_t bytesWritten; \
1593 		int32_t status; \
1594 		do \
1595 		{ \
1596 			bytesWritten = 0; \
1597 			status = TRC_STREAM_PORT_WRITE_DATA(ptrWrite, writeSize, &bytesWritten); \
1598 			if (status != 0) \
1599 			{ \
1600 				prvTraceError(PSF_ERROR_STREAM_PORT_WRITE); \
1601 				break; \
1602 			} \
1603 			ptrWrite += bytesWritten; \
1604 			writeSize -= bytesWritten; \
1605 			attemptCounter++; \
1606 		} while (writeSize > 0); \
1607 		\
1608 		if (attemptCounter > 1) \
1609 		{ \
1610 			prvTraceWarning(PSF_WARNING_STREAM_PORT_INITIAL_BLOCKING); \
1611 		} \
1612 	}
1613 
1614 #endif
1615 #endif
1616 
1617 /******************************************************************************
1618  * TRC_STREAM_PORT_READ_DATA (defined in trcStreamingPort.h)
1619  *
1620  * Defining how to read data from host (commands from Tracealyzer).
1621  *
1622  * If there is no direct interface to host (e.g., if streaming to a file
1623  * system) this should be defined as 0. Instead use vTraceEnable(TRC_START) and
1624  * vTraceStop() to control the recording from target.
1625  *
1626  * Parameters:
1627  *
1628  * - _ptrData: a pointer to a data buffer, where the received data shall be
1629  *             stored (TracealyzerCommandType*).
1630  *
1631  * - _size: the number of bytes to read (int).
1632  *
1633  * - _ptrBytesRead: a pointer to an integer (int), that should be assigned
1634  *					with the number of bytes that was received.
1635  *
1636  * Example:
1637  *
1638  * 	int32_t myRead(void* ptrData, uint32_t size, int32_t* ptrBytesRead);
1639  *
1640  *	#define TRC_STREAM_PORT_READ_DATA(_ptrData, _size, _ptrBytesRead) \
1641  *          myRead(_ptrData, _size, _ptrBytesRead)
1642  *
1643  * Your "myRead" function should return 0 if successful, i.e. if at least some
1644  * bytes were received. A non-zero value should be returned if the streaming
1645  * interface returned an error (e.g. a closed socket), which results in the
1646  * recorder calling prvTraceWarning with the error code
1647  * PSF_WARNING_STREAM_PORT_WRITE.
1648  *
1649  * If developing your own custom stream port and using the default internal
1650  * buffer, it is important that the _ptrBytesRead parameter is assigned
1651  * correctly by "myRead", i.e. with the number of bytes actually written.
1652  * Otherwise the data stream may get out of sync in case the streaming interface
1653  * can't swallow all data at once.
1654  ******************************************************************************/
1655 #ifndef TRC_STREAM_PORT_READ_DATA
1656 #error "No definition for TRC_STREAM_PORT_READ_DATA (should be in trcStreamingPort.h)"
1657 #endif
1658 
1659 /******************************************************************************
1660  * TRC_STREAM_PORT_WRITE_DATA (defined in trcStreamingPort.h)
1661  *
1662  * Defining how to write trace data to the streaming interface.
1663  *
1664  * Parameters:
1665  *
1666  * - _ptrData: a pointer (void*) to the data to write.
1667  *
1668  * - _size: the number of bytes to write (uint32_t).
1669  *
1670  * - _ptrBytesWritten: a pointer to an integer (int32_t), that should be
1671  *						assigned with the number of bytes actually written.
1672  *
1673  * Example:
1674  *
1675  * 	int32_t myWrite(void* ptrData, uint32_t size, int32_t* ptrBytesWritten);
1676  *
1677  *	#define TRC_STREAM_PORT_WRITE_DATA(_ptrData, _size, _ptrBytesWritten) \
1678  *			myWrite(_ptrData, _size, _ptrBytesWritten)
1679  *
1680  * Your "myWrite" function should return 0 if successful, i.e. if at least some
1681  * bytes were sent. A non-zero value should be returned if the streaming interface
1682  * returned an error (e.g. a closed socket), which results in the recorder calling
1683  * prvTraceWarning with the error code PSF_WARNING_STREAM_PORT_WRITE.
1684  *
1685  * If developing your own custom stream port and using the default internal
1686  * buffer, it is important that the _ptrBytesWritten parameter is assigned
1687  * correctly by "myWrite", i.e. with the number of bytes actually written.
1688  * Otherwise the data stream may get out of sync in case the streaming interface
1689  * can't swallow all data at once.
1690  *
1691  * Assuming TRC_STREAM_PORT_USE_INTERNAL_BUFFER is 1 (default), the TzCtrl task
1692  * will use this macro to send one buffer page at a time. In case all data can't
1693  * be written at once (if _ptrBytesWritten is less than _size), the TzCtrl task
1694  * is smart enough to make repeated calls (with updated parameters) in order to
1695  * send the remaining data.
1696  *
1697  * However, if TRC_STREAM_PORT_USE_INTERNAL_BUFFER is 0, this is used from the
1698  * COMMIT macro, directly in the "event functions". In that case, the
1699  * _ptrBytesWritten parameter will be NULL and should be ignored by the write
1700  * function. In this case, it is assumed that all data can be sent in a single
1701  * call, otherwise the write function should return a non-zero error code.
1702  ******************************************************************************/
1703 #ifndef TRC_STREAM_PORT_WRITE_DATA
1704 #error "No definition for TRC_STREAM_PORT_WRITE_DATA (should be in trcStreamingPort.h)"
1705 #endif
1706 
1707 /******************************************************************************
1708 * Data structure declaration, depending on  TRC_CFG_RECORDER_BUFFER_ALLOCATION
1709 *******************************************************************************/
1710 #if (TRC_CFG_RECORDER_BUFFER_ALLOCATION == TRC_RECORDER_BUFFER_ALLOCATION_STATIC)
1711 
1712 	/* Static allocation. */
1713 
1714 	/* If not defined in trcStreamingPort.h */
1715 	#ifndef TRC_STREAM_PORT_ALLOCATE_FIELDS
1716 		#define TRC_STREAM_PORT_ALLOCATE_FIELDS() \
1717 		char _TzTraceData[(TRC_CFG_PAGED_EVENT_BUFFER_PAGE_COUNT) * (TRC_CFG_PAGED_EVENT_BUFFER_PAGE_SIZE)];
1718 		extern char _TzTraceData[(TRC_CFG_PAGED_EVENT_BUFFER_PAGE_COUNT) * (TRC_CFG_PAGED_EVENT_BUFFER_PAGE_SIZE)];
1719 	#endif
1720 
1721 	/* If not defined in trcStreamingPort.h */
1722 	#ifndef TRC_STREAM_PORT_MALLOC
1723 		#define TRC_STREAM_PORT_MALLOC() /* Static allocation. Not used. */
1724 	#endif
1725 #else
1726 	/* For Dynamic or Custom Allocation mode */
1727 
1728 	/* If not defined in trcStreamingPort.h */
1729 	#ifndef TRC_STREAM_PORT_ALLOCATE_FIELDS
1730 		#define TRC_STREAM_PORT_ALLOCATE_FIELDS() char* _TzTraceData = NULL;
1731 		extern char* _TzTraceData;
1732 	#endif
1733 
1734 	/* If not defined in trcStreamingPort.h */
1735 	#ifndef TRC_STREAM_PORT_MALLOC
1736 		#if (TRC_CFG_RECORDER_BUFFER_ALLOCATION == TRC_RECORDER_BUFFER_ALLOCATION_DYNAMIC)
1737 			#define TRC_STREAM_PORT_MALLOC() \
1738 			_TzTraceData = TRC_PORT_MALLOC((TRC_CFG_PAGED_EVENT_BUFFER_PAGE_COUNT) * (TRC_CFG_PAGED_EVENT_BUFFER_PAGE_SIZE));
1739 			extern char* _TzTraceData;
1740 		#else
1741 			#define TRC_STREAM_PORT_MALLOC()  /* Custom allocation. Not used. */
1742 		#endif
1743 	#endif
1744 #endif
1745 
1746 #ifndef TRC_STREAM_PORT_INIT
1747 	#define TRC_STREAM_PORT_INIT() \
1748 			TRC_STREAM_PORT_MALLOC(); /* Empty if static allocation mode */ \
1749 			prvPagedEventBufferInit(_TzTraceData);
1750 #endif
1751 
1752 #ifndef TRC_STREAM_PORT_INTERNAL_BUFFER_INIT
1753 	#define TRC_STREAM_PORT_INTERNAL_BUFFER_INIT() prvPagedEventBufferInit(_TzTraceData);
1754 #endif
1755 
1756 
1757 /* Signal an error. */
1758 void prvTraceError(int errCode);
1759 
1760 /* Signal an warning (does not stop the recorder). */
1761 void prvTraceWarning(int errCode);
1762 
1763 /******************************************************************************/
1764 /*** ERROR AND WARNING CODES (check using xTraceGetLastError) *****************/
1765 /******************************************************************************/
1766 
1767 #define PSF_ERROR_NONE 0
1768 #define PSF_ERROR_EVENT_CODE_TOO_LARGE 1
1769 #define PSF_ERROR_ISR_NESTING_OVERFLOW 2
1770 #define PSF_ERROR_DWT_NOT_SUPPORTED 3
1771 #define PSF_ERROR_DWT_CYCCNT_NOT_SUPPORTED 4
1772 #define PSF_ERROR_TZCTRLTASK_NOT_CREATED 5
1773 #define PSF_ERROR_STREAM_PORT_WRITE 6
1774 
1775 #define PSF_WARNING_SYMBOL_TABLE_SLOTS 7
1776 #define PSF_WARNING_SYMBOL_MAX_LENGTH 8
1777 #define PSF_WARNING_OBJECT_DATA_SLOTS 9
1778 #define PSF_WARNING_STRING_TOO_LONG 10
1779 #define PSF_WARNING_STREAM_PORT_READ 11
1780 #define PSF_WARNING_STREAM_PORT_WRITE 12
1781 #define PSF_WARNING_STREAM_PORT_INITIAL_BLOCKING 13
1782 #define PSF_WARNING_STACKMON_NO_SLOTS 14
1783 
1784 /******************************************************************************/
1785 /*** INTERNAL STREAMING FUNCTIONS *********************************************/
1786 /******************************************************************************/
1787 
1788 /* Saves a symbol name in the symbol table and returns the slot address */
1789 void* prvTraceSaveSymbol(const char *name);
1790 
1791 /* Saves a string in the symbol table for an object (task name etc.) */
1792 void prvTraceSaveObjectSymbol(void* address, const char *name);
1793 
1794 /* Deletes a symbol name (task name etc.) from symbol table */
1795 void prvTraceDeleteSymbol(void *address);
1796 
1797 /* Saves an object data entry (task base priority) in object data table */
1798 void prvTraceSaveObjectData(const void *address, uint32_t data);
1799 
1800 /* Removes an object data entry (task base priority) from object data table */
1801 void prvTraceDeleteObjectData(void *address);
1802 
1803 /* Gets the most recent tcb address */
1804 uint32_t prvTraceGetCurrentTask(void);
1805 
1806 /* Sets the most recent tcb address */
1807 void prvTraceSetCurrentTask(uint32_t tcb);
1808 
1809 /* Begins an event with defined specified payload size. Must call prvTraceEndStoreEvent() to finalize event creation. */
1810 uint32_t prvTraceBeginStoreEvent(uint32_t uiEventCode, uint32_t uiTotalPayloadSize);
1811 
1812 /* Ends the event that was begun by calling on prvTraceBeginStoreEvent() */
1813 uint32_t prvTraceEndStoreEvent();
1814 
1815 /* Adds data of size uiSize as event payload */
1816 uint32_t prvTraceStoreEventPayload(void *pvData, uint32_t uiSize);
1817 
1818 /* Adds an uint32_t as event payload */
1819 uint32_t prvTraceStoreEventPayload32(uint32_t value);
1820 
1821 /* Adds an uint16_t as event payload */
1822 uint32_t prvTraceStoreEventPayload16(uint16_t value);
1823 
1824 /* Adds an uint8_t as event payload */
1825 uint32_t prvTraceStoreEventPayload8(uint8_t value);
1826 
1827 /* Store an event with zero parameters (event ID only) */
1828 void prvTraceStoreEvent0(uint16_t eventID);
1829 
1830 /* Store an event with one 32-bit parameter (pointer address or an int) */
1831 void prvTraceStoreEvent1(uint16_t eventID,
1832 	uint32_t param1);
1833 
1834 /* Store an event with two 32-bit parameters */
1835 void prvTraceStoreEvent2(uint16_t eventID,
1836 	uint32_t param1,
1837 	uint32_t param2);
1838 
1839 /* Store an event with three 32-bit parameters */
1840 void prvTraceStoreEvent3(uint16_t eventID,
1841 	uint32_t param1,
1842 	uint32_t param2,
1843 	uint32_t param3);
1844 
1845 /* Stores an event with <nParam> 32-bit integer parameters */
1846 void prvTraceStoreEvent(int nParam, uint16_t EventID, ...);
1847 
1848 /* Stories an event with a string and <nParam> 32-bit integer parameters */
1849 void prvTraceStoreStringEvent(int nArgs, uint16_t eventID, const char* str, ...);
1850 
1851 /* The data structure for commands (a bit overkill) */
1852 typedef struct
1853 {
1854 	unsigned char cmdCode;
1855 	unsigned char param1;
1856 	unsigned char param2;
1857 	unsigned char param3;
1858 	unsigned char param4;
1859 	unsigned char param5;
1860 	unsigned char checksumLSB;
1861 	unsigned char checksumMSB;
1862 } TracealyzerCommandType;
1863 
1864 /* Checks if the provided command is a valid command */
1865 int prvIsValidCommand(TracealyzerCommandType* cmd);
1866 
1867 /* Executed the received command (Start or Stop) */
1868 void prvProcessCommand(TracealyzerCommandType* cmd);
1869 
1870 
1871 #define vTraceSetStopHook(x) (void)(x)
1872 
1873 #define vTraceInitTimestamps()
1874 
1875 #endif /*(TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)*/
1876 
1877 #else /* when TRC_USE_TRACEALYZER_RECORDER == 0 */
1878 
1879 #define vTraceEnable(x) (void)(x)
1880 #define xTraceRegisterString(x) ((void)(x), (traceString)0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
1881 #define vTracePrint(chn, ...) (void)(chn)
1882 #define vTracePrintF(chn, fmt, ...) (void)(chn), (void)(fmt) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
1883 #define vTraceVPrintF(chn, formatStr, vl) (void)(chn), (void)(formatStr), (void)(vl) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
1884 #define vTraceInstanceFinishedNow()
1885 #define vTraceInstanceFinishedNext()
1886 #define vTraceStoreISRBegin(x) (void)(x)
1887 #define vTraceStoreISREnd(x) (void)(x)
1888 #define xTraceSetISRProperties(a, b) ((void)(a), (void)(b), (traceHandle)0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
1889 #define vTraceStoreKernelObjectName(a, b) (void)(a), (void)(b) /* Comma operator is used to avoid "unused variable" compiler warnings in a single statement */
1890 #define xTraceRegisterChannelFormat(eventLabel, formatStr) ((void)(eventLabel), (void)(formatStr), 0) /* Comma operator in parenthesis is used to avoid "unused variable" compiler warnings and return 0 in a single statement */
1891 #define vTraceChannelPrint(label) (void)(label)
1892 #define vTraceUBData(label, ...) (void)(label)
1893 
1894 #define vTraceSetFilterGroup(x) (void)(x)
1895 #define vTraceSetFilterMask(x) (void)(x)
1896 
1897 #define prvTraceSetReadyEventsEnabled(status) (void)(status)
1898 
1899 #define vTraceExcludeTask(handle) (void)(handle)
1900 
1901 #define uiTraceStart() (1)
1902 #define vTraceStart()
1903 #define vTraceStop()
1904 
1905 #ifndef vTraceSetRecorderDataBuffer
1906 #define vTraceSetRecorderDataBuffer(pRecorderData) /* No (void) here - ignore parameter since undefined symbol if custom allocation is not used */
1907 #endif
1908 
1909 #define vTraceConsoleChannelPrintF(fmt, ...) (void)(fmt)
1910 
1911 #ifndef TRC_ALLOC_CUSTOM_BUFFER
1912 #define TRC_ALLOC_CUSTOM_BUFFER(bufname)
1913 #endif
1914 
1915 #define xTraceIsRecordingEnabled() (0)
1916 
1917 #define vTraceSetStopHook(x) (void)(x)
1918 
1919 #endif /*(TRC_USE_TRACEALYZER_RECORDER == 1)*/
1920 
1921 #ifdef __cplusplus
1922 }
1923 #endif
1924 
1925 #endif /* TRC_RECORDER_H */
1926