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3438 svoboda 1
/*
2
 * Copyright (c) 2008 Jiri Svoboda
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
/** @addtogroup trace
30
 * @{
31
 */
32
/** @file
33
 */
34
 
35
#include <stdio.h>
36
#include <stdlib.h>
37
#include <unistd.h>
38
#include <ipc/ipc.h>
39
#include <fibril.h>
40
#include <errno.h>
41
#include <udebug.h>
42
#include <async.h>
3447 svoboda 43
#include <task.h>
3474 svoboda 44
#include <loader/loader.h>
3438 svoboda 45
 
3535 svoboda 46
#include <libc.h>
47
 
3438 svoboda 48
// Temporary: service and method names
49
#include "proto.h"
50
#include <ipc/services.h>
51
#include "../../srv/vfs/vfs.h"
4338 svoboda 52
#include <ipc/console.h>
3438 svoboda 53
 
54
#include "syscalls.h"
55
#include "ipcp.h"
56
#include "errors.h"
3444 svoboda 57
#include "trace.h"
3438 svoboda 58
 
59
#define THBUF_SIZE 64
3474 svoboda 60
uintptr_t thread_hash_buf[THBUF_SIZE];
61
int n_threads;
3438 svoboda 62
 
63
int next_thread_id;
64
 
65
int phoneid;
66
int abort_trace;
67
 
3474 svoboda 68
uintptr_t thash;
3438 svoboda 69
volatile int paused;
70
 
3474 svoboda 71
void thread_trace_start(uintptr_t thread_hash);
3438 svoboda 72
 
73
static proto_t *proto_console;
3444 svoboda 74
static task_id_t task_id;
3474 svoboda 75
static loader_t *task_ldr;
3438 svoboda 76
 
3444 svoboda 77
/** Combination of events/data to print. */
78
display_mask_t display_mask;
79
 
3474 svoboda 80
static int program_run_fibril(void *arg);
81
 
82
static void program_run(void)
3438 svoboda 83
{
3474 svoboda 84
	fid_t fid;
85
 
86
	fid = fibril_create(program_run_fibril, NULL);
87
	if (fid == 0) {
88
		printf("Error creating fibril\n");
89
		exit(1);
90
	}
91
 
92
	fibril_add_ready(fid);
93
}
94
 
95
static int program_run_fibril(void *arg)
96
{
3438 svoboda 97
	int rc;
98
 
3474 svoboda 99
	/*
100
	 * This must be done in background as it will block until
101
	 * we let the task reply to this call.
102
	 */
103
	rc = loader_run(task_ldr);
104
	if (rc != 0) {
105
		printf("Error running program\n");
106
		exit(1);
107
	}
108
 
109
	free(task_ldr);
110
	task_ldr = NULL;
111
 
112
	printf("program_run_fibril exiting\n");
113
	return 0;
114
}
115
 
116
 
117
static int connect_task(task_id_t task_id)
118
{
119
	int rc;
120
 
3438 svoboda 121
	rc = ipc_connect_kbox(task_id);
3439 svoboda 122
 
123
	if (rc == ENOTSUP) {
124
		printf("You do not have userspace debugging support "
125
		    "compiled in the kernel.\n");
126
		printf("Compile kernel with 'Support for userspace debuggers' "
127
		    "(CONFIG_UDEBUG) enabled.\n");
3442 svoboda 128
		return rc;
3439 svoboda 129
	}
130
 
3442 svoboda 131
	if (rc < 0) {
132
		printf("Error connecting\n");
133
		printf("ipc_connect_task(%lld) -> %d ", task_id, rc);
134
		return rc;
135
	}
136
 
3438 svoboda 137
	phoneid = rc;
138
 
139
	rc = udebug_begin(phoneid);
3442 svoboda 140
	if (rc < 0) {
141
		printf("udebug_begin() -> %d\n", rc);
142
		return rc;
143
	}
3438 svoboda 144
 
145
	rc = udebug_set_evmask(phoneid, UDEBUG_EM_ALL);
3442 svoboda 146
	if (rc < 0) {
147
		printf("udebug_set_evmask(0x%x) -> %d\n ", UDEBUG_EM_ALL, rc);
148
		return rc;
149
	}
3438 svoboda 150
 
151
	return 0;
152
}
153
 
154
static int get_thread_list(void)
155
{
156
	int rc;
157
	size_t tb_copied;
158
	size_t tb_needed;
159
	int i;
160
 
161
	rc = udebug_thread_read(phoneid, thread_hash_buf,
162
		THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
3442 svoboda 163
	if (rc < 0) {
164
		printf("udebug_thread_read() -> %d\n", rc);
165
		return rc;
166
	}
3438 svoboda 167
 
3474 svoboda 168
	n_threads = tb_copied / sizeof(uintptr_t);
3438 svoboda 169
 
3442 svoboda 170
	printf("Threads:");
171
	for (i = 0; i < n_threads; i++) {
3474 svoboda 172
		printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);
3438 svoboda 173
	}
3474 svoboda 174
	printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));
3438 svoboda 175
 
176
	return 0;
177
}
178
 
3474 svoboda 179
void val_print(sysarg_t val, val_type_t v_type)
3438 svoboda 180
{
3474 svoboda 181
	switch (v_type) {
182
	case V_VOID:
183
		printf("<void>");
184
		break;
185
 
186
	case V_INTEGER:
187
		printf("%ld", val);
188
		break;
189
 
190
	case V_HASH:
191
	case V_PTR:
192
		printf("0x%08lx", val);
193
		break;
194
 
195
	case V_ERRNO:
196
		if (val >= -15 && val <= 0) {
197
			printf("%ld %s (%s)", val,
198
			    err_desc[-val].name,
199
			    err_desc[-val].desc);
3438 svoboda 200
		} else {
3474 svoboda 201
			printf("%ld", val);
3438 svoboda 202
		}
3474 svoboda 203
		break;
204
	case V_INT_ERRNO:
205
		if (val >= -15 && val < 0) {
206
			printf("%ld %s (%s)", val,
207
			    err_desc[-val].name,
208
			    err_desc[-val].desc);
3438 svoboda 209
		} else {
3474 svoboda 210
			printf("%ld", val);
3438 svoboda 211
		}
3474 svoboda 212
		break;
213
 
214
	case V_CHAR:
215
		if (val >= 0x20 && val < 0x7f) {
216
			printf("'%c'", val);
217
		} else {
218
			switch (val) {
219
			case '\a': printf("'\\a'"); break;
220
			case '\b': printf("'\\b'"); break;
221
			case '\n': printf("'\\n'"); break;
222
			case '\r': printf("'\\r'"); break;
223
			case '\t': printf("'\\t'"); break;
224
			case '\\': printf("'\\\\'"); break;
225
			default: printf("'\\x%02lX'", val); break;
226
			}
227
		}
228
		break;
3438 svoboda 229
	}
3474 svoboda 230
}
231
 
232
 
233
static void print_sc_retval(sysarg_t retval, val_type_t val_type)
234
{
235
	printf(" -> ");
236
	val_print(retval, val_type);
3438 svoboda 237
	putchar('\n');
238
}
239
 
3474 svoboda 240
static void print_sc_args(sysarg_t *sc_args, int n)
3438 svoboda 241
{
242
	int i;
243
 
244
	putchar('(');
3474 svoboda 245
	if (n > 0) printf("%ld", sc_args[0]);
246
	for (i = 1; i < n; i++) {
247
		printf(", %ld", sc_args[i]);
3438 svoboda 248
	}
249
	putchar(')');
250
}
251
 
3474 svoboda 252
static void sc_ipc_call_async_fast(sysarg_t *sc_args, sysarg_t sc_rc)
3438 svoboda 253
{
254
	ipc_call_t call;
3474 svoboda 255
	ipcarg_t phoneid;
3438 svoboda 256
 
257
	if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
258
		return;
259
 
260
	phoneid = sc_args[0];
261
 
262
	IPC_SET_METHOD(call, sc_args[1]);
263
	IPC_SET_ARG1(call, sc_args[2]);
264
	IPC_SET_ARG2(call, sc_args[3]);
265
	IPC_SET_ARG3(call, sc_args[4]);
266
	IPC_SET_ARG4(call, sc_args[5]);
267
	IPC_SET_ARG5(call, 0);
268
 
269
	ipcp_call_out(phoneid, &call, sc_rc);
270
}
271
 
3474 svoboda 272
static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)
3438 svoboda 273
{
274
	ipc_call_t call;
275
	int rc;
276
 
277
	if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
278
		return;
279
 
280
	memset(&call, 0, sizeof(call));
281
	rc = udebug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args));
282
 
283
	if (rc >= 0) {
284
		ipcp_call_out(sc_args[0], &call, sc_rc);
285
	}
286
}
287
 
3474 svoboda 288
static void sc_ipc_call_sync_fast(sysarg_t *sc_args)
3438 svoboda 289
{
290
	ipc_call_t question, reply;
291
	int rc;
292
	int phoneidx;
293
 
294
//	printf("sc_ipc_call_sync_fast()\n");
295
	phoneidx = sc_args[0];
296
 
297
	IPC_SET_METHOD(question, sc_args[1]);
298
	IPC_SET_ARG1(question, sc_args[2]);
299
	IPC_SET_ARG2(question, sc_args[3]);
300
	IPC_SET_ARG3(question, sc_args[4]);
301
	IPC_SET_ARG4(question, 0);
302
	IPC_SET_ARG5(question, 0);
303
 
304
//	printf("memset\n");
305
	memset(&reply, 0, sizeof(reply));
306
//	printf("udebug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n",
307
//		phoneid, &reply.args, sc_args[5], sizeof(reply.args));
308
	rc = udebug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args));
309
//	printf("dmr->%d\n", rc);
310
	if (rc < 0) return;
311
 
312
//	printf("call ipc_call_sync\n");
313
	ipcp_call_sync(phoneidx, &question, &reply);
314
}
315
 
3474 svoboda 316
static void sc_ipc_call_sync_slow(sysarg_t *sc_args)
3438 svoboda 317
{
318
	ipc_call_t question, reply;
319
	int rc;
320
 
321
	memset(&question, 0, sizeof(question));
322
	rc = udebug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args));
323
	printf("dmr->%d\n", rc);
324
	if (rc < 0) return;
325
 
326
	memset(&reply, 0, sizeof(reply));
327
	rc = udebug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args));
328
	printf("dmr->%d\n", rc);
329
	if (rc < 0) return;
330
 
331
	ipcp_call_sync(sc_args[0], &question, &reply);
332
}
333
 
3474 svoboda 334
static void sc_ipc_wait(sysarg_t *sc_args, int sc_rc)
3438 svoboda 335
{
336
	ipc_call_t call;
337
	int rc;
338
 
339
	if (sc_rc == 0) return;
340
 
341
	memset(&call, 0, sizeof(call));
342
	rc = udebug_mem_read(phoneid, &call, sc_args[0], sizeof(call));
343
//	printf("udebug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n",
344
//		phoneid, (int)&call, sc_args[0], sizeof(call), rc);
345
 
346
	if (rc >= 0) {
347
		ipcp_call_in(&call, sc_rc);
348
	}
349
}
350
 
3474 svoboda 351
static void event_syscall_b(unsigned thread_id, uintptr_t thread_hash,
352
    unsigned sc_id, sysarg_t sc_rc)
3438 svoboda 353
{
3474 svoboda 354
	sysarg_t sc_args[6];
3438 svoboda 355
	int rc;
356
 
357
	/* Read syscall arguments */
358
	rc = udebug_args_read(phoneid, thread_hash, sc_args);
359
 
360
	async_serialize_start();
361
 
362
//	printf("[%d] ", thread_id);
363
 
364
	if (rc < 0) {
365
		printf("error\n");
366
		async_serialize_end();
367
		return;
368
	}
369
 
3444 svoboda 370
	if ((display_mask & DM_SYSCALL) != 0) {
371
		/* Print syscall name and arguments */
372
		printf("%s", syscall_desc[sc_id].name);
373
		print_sc_args(sc_args, syscall_desc[sc_id].n_args);
374
	}
3438 svoboda 375
 
376
	async_serialize_end();
377
}
378
 
3474 svoboda 379
static void event_syscall_e(unsigned thread_id, uintptr_t thread_hash,
380
    unsigned sc_id, sysarg_t sc_rc)
3438 svoboda 381
{
3474 svoboda 382
	sysarg_t sc_args[6];
3438 svoboda 383
	int rv_type;
384
	int rc;
385
 
386
	/* Read syscall arguments */
387
	rc = udebug_args_read(phoneid, thread_hash, sc_args);
388
 
389
	async_serialize_start();
390
 
391
//	printf("[%d] ", thread_id);
392
 
393
	if (rc < 0) {
394
		printf("error\n");
395
		async_serialize_end();
396
		return;
397
	}
398
 
3444 svoboda 399
	if ((display_mask & DM_SYSCALL) != 0) {
400
		/* Print syscall return value */
401
		rv_type = syscall_desc[sc_id].rv_type;
402
		print_sc_retval(sc_rc, rv_type);
403
	}
3438 svoboda 404
 
405
	switch (sc_id) {
406
	case SYS_IPC_CALL_ASYNC_FAST:
407
		sc_ipc_call_async_fast(sc_args, sc_rc);
408
		break;
409
	case SYS_IPC_CALL_ASYNC_SLOW:
410
		sc_ipc_call_async_slow(sc_args, sc_rc);
411
		break;
412
	case SYS_IPC_CALL_SYNC_FAST:
413
		sc_ipc_call_sync_fast(sc_args);
414
		break;
415
	case SYS_IPC_CALL_SYNC_SLOW:
416
		sc_ipc_call_sync_slow(sc_args);
417
		break;
418
	case SYS_IPC_WAIT:
419
		sc_ipc_wait(sc_args, sc_rc);
420
		break;
421
	default:
422
		break;
423
	}
424
 
425
	async_serialize_end();
426
}
427
 
3474 svoboda 428
static void event_thread_b(uintptr_t hash)
3438 svoboda 429
{
430
	async_serialize_start();
3474 svoboda 431
	printf("New thread, hash 0x%lx\n", hash);
3438 svoboda 432
	async_serialize_end();
433
 
434
	thread_trace_start(hash);
435
}
436
 
437
static int trace_loop(void *thread_hash_arg)
438
{
439
	int rc;
440
	unsigned ev_type;
3474 svoboda 441
	uintptr_t thread_hash;
3438 svoboda 442
	unsigned thread_id;
3474 svoboda 443
	sysarg_t val0, val1;
3438 svoboda 444
 
3474 svoboda 445
	thread_hash = (uintptr_t)thread_hash_arg;
3438 svoboda 446
	thread_id = next_thread_id++;
447
 
3674 svoboda 448
	printf("Start tracing thread [%d] (hash 0x%lx).\n", thread_id, thread_hash);
3438 svoboda 449
 
450
	while (!abort_trace) {
451
 
3674 svoboda 452
		if (paused) {
453
			printf("Press R to resume (and be patient).\n");
454
			while (paused) {
455
				usleep(1000000);
456
				fibril_yield();
457
				printf(".");
458
			}
459
			printf("Resumed\n");
460
		}
461
 
3438 svoboda 462
		/* Run thread until an event occurs */
463
		rc = udebug_go(phoneid, thread_hash,
464
		    &ev_type, &val0, &val1);
465
 
466
//		printf("rc = %d, ev_type=%d\n", rc, ev_type);
467
		if (ev_type == UDEBUG_EVENT_FINISHED) {
3442 svoboda 468
			/* Done tracing this thread */
3438 svoboda 469
			break;
470
		}
471
 
472
		if (rc >= 0) {
473
			switch (ev_type) {
474
			case UDEBUG_EVENT_SYSCALL_B:
475
				event_syscall_b(thread_id, thread_hash, val0, (int)val1);
476
				break;
477
			case UDEBUG_EVENT_SYSCALL_E:
478
				event_syscall_e(thread_id, thread_hash, val0, (int)val1);
479
				break;
480
			case UDEBUG_EVENT_STOP:
3442 svoboda 481
				printf("Stop event\n");
3438 svoboda 482
				break;
483
			case UDEBUG_EVENT_THREAD_B:
484
				event_thread_b(val0);
485
				break;
486
			case UDEBUG_EVENT_THREAD_E:
3674 svoboda 487
				printf("Thread 0x%lx exited.\n", val0);
3438 svoboda 488
				abort_trace = 1;
489
				break;
490
			default:
3674 svoboda 491
				printf("Unknown event type %d.\n", ev_type);
3438 svoboda 492
				break;
493
			}
494
		}
495
 
496
	}
497
 
3674 svoboda 498
	printf("Finished tracing thread [%d].\n", thread_id);
3438 svoboda 499
	return 0;
500
}
501
 
3474 svoboda 502
void thread_trace_start(uintptr_t thread_hash)
3438 svoboda 503
{
504
	fid_t fid;
505
 
506
	thash = thread_hash;
507
 
508
	fid = fibril_create(trace_loop, (void *)thread_hash);
509
	if (fid == 0) {
510
		printf("Warning: Failed creating fibril\n");
511
	}
512
	fibril_add_ready(fid);
513
}
514
 
3474 svoboda 515
static loader_t *preload_task(const char *path, char *const argv[],
516
    task_id_t *task_id)
3438 svoboda 517
{
3474 svoboda 518
	loader_t *ldr;
519
	int rc;
520
 
521
	/* Spawn a program loader */	
3569 svoboda 522
	ldr = loader_spawn(path);
3474 svoboda 523
	if (ldr == NULL)
524
		return 0;
525
 
526
	/* Get task ID. */
527
	rc = loader_get_task_id(ldr, task_id);
528
	if (rc != EOK)
529
		goto error;
530
 
531
	/* Send program pathname */
532
	rc = loader_set_pathname(ldr, path);
533
	if (rc != EOK)
534
		goto error;
535
 
536
	/* Send arguments */
537
	rc = loader_set_args(ldr, argv);
538
	if (rc != EOK)
539
		goto error;
540
 
541
	/* Load the program. */
542
	rc = loader_load_program(ldr);
543
	if (rc != EOK)
544
		goto error;
545
 
546
	/* Success */
547
	return ldr;
548
 
549
	/* Error exit */
550
error:
551
	loader_abort(ldr);
552
	free(ldr);
553
	return NULL;
554
}
555
 
556
static void trace_task(task_id_t task_id)
557
{
3438 svoboda 558
	int i;
559
	int rc;
560
	int c;
561
 
562
	ipcp_init();
563
 
3442 svoboda 564
	/* 
565
	 * User apps now typically have console on phone 3.
566
	 * (Phones 1 and 2 are used by the loader).
567
	 */
568
	ipcp_connection_set(3, 0, proto_console);
569
 
3438 svoboda 570
	rc = get_thread_list();
571
	if (rc < 0) {
572
		printf("Failed to get thread list (error %d)\n", rc);
573
		return;
574
	}
575
 
576
	abort_trace = 0;
577
 
578
	for (i = 0; i < n_threads; i++) {
579
		thread_trace_start(thread_hash_buf[i]);
580
	}
581
 
582
	while(1) {
583
		c = getchar();
584
		if (c == 'q') break;
585
		if (c == 'p') {
3674 svoboda 586
			printf("Pause...\n");
3438 svoboda 587
			paused = 1;
588
			rc = udebug_stop(phoneid, thash);
589
			printf("stop -> %d\n", rc);
590
		}
591
		if (c == 'r') {
592
			paused = 0;
3674 svoboda 593
			printf("Resume...\n");
3438 svoboda 594
		}
595
	}
596
 
3442 svoboda 597
	printf("\nTerminate debugging session...\n");
3438 svoboda 598
	abort_trace = 1;
599
	udebug_end(phoneid);
600
	ipc_hangup(phoneid);
601
 
602
	ipcp_cleanup();
603
 
3442 svoboda 604
	printf("Done\n");
3438 svoboda 605
	return;
606
}
607
 
608
static void main_init(void)
609
{
610
	proto_t *p;
611
	oper_t *o;
612
 
3474 svoboda 613
	val_type_t arg_def[OPER_MAX_ARGS] = {
614
		V_INTEGER,
615
		V_INTEGER,
616
		V_INTEGER,
617
		V_INTEGER,
618
		V_INTEGER		
619
	};
620
 
621
	val_type_t resp_def[OPER_MAX_ARGS] = {
622
		V_INTEGER,
623
		V_INTEGER,
624
		V_INTEGER,
625
		V_INTEGER,
626
		V_INTEGER		
627
	};
628
 
3438 svoboda 629
	next_thread_id = 1;
630
	paused = 0;
631
 
632
	proto_init();
633
 
634
	p = proto_new("vfs");
3474 svoboda 635
	o = oper_new("read", 1, arg_def, V_ERRNO, 1, resp_def);
3438 svoboda 636
	proto_add_oper(p, VFS_READ, o);
3474 svoboda 637
	o = oper_new("write", 1, arg_def, V_ERRNO, 1, resp_def);
3438 svoboda 638
	proto_add_oper(p, VFS_WRITE, o);
3474 svoboda 639
	o = oper_new("truncate", 5, arg_def, V_ERRNO, 0, resp_def);
3438 svoboda 640
	proto_add_oper(p, VFS_TRUNCATE, o);
3474 svoboda 641
	o = oper_new("mount", 2, arg_def, V_ERRNO, 0, resp_def);
3438 svoboda 642
	proto_add_oper(p, VFS_MOUNT, o);
3474 svoboda 643
/*	o = oper_new("unmount", 0, arg_def);
644
	proto_add_oper(p, VFS_UNMOUNT, o);*/
4341 svoboda 645
	o = oper_new("open", 2, arg_def, V_INT_ERRNO, 0, resp_def);
646
	proto_add_oper(p, VFS_OPEN, o);
647
	o = oper_new("close", 1, arg_def, V_ERRNO, 0, resp_def);
648
	proto_add_oper(p, VFS_CLOSE, o);
649
	o = oper_new("seek", 3, arg_def, V_ERRNO, 0, resp_def);
650
	proto_add_oper(p, VFS_SEEK, o);
651
	o = oper_new("mkdir", 1, arg_def, V_ERRNO, 0, resp_def);
652
	proto_add_oper(p, VFS_MKDIR, o);
653
	o = oper_new("unlink", 0, arg_def, V_ERRNO, 0, resp_def);
654
	proto_add_oper(p, VFS_UNLINK, o);
655
	o = oper_new("rename", 0, arg_def, V_ERRNO, 0, resp_def);
656
	proto_add_oper(p, VFS_RENAME, o);
3438 svoboda 657
 
658
	proto_register(SERVICE_VFS, p);
659
 
660
	p = proto_new("console");
3474 svoboda 661
	resp_def[0] = V_CHAR;
662
	o = oper_new("getchar", 0, arg_def, V_INTEGER, 2, resp_def);
3438 svoboda 663
	proto_add_oper(p, CONSOLE_GETCHAR, o);
3474 svoboda 664
 
665
	arg_def[0] = V_CHAR;
666
	o = oper_new("putchar", 1, arg_def, V_VOID, 0, resp_def);
3438 svoboda 667
	proto_add_oper(p, CONSOLE_PUTCHAR, o);
3474 svoboda 668
	o = oper_new("clear", 0, arg_def, V_VOID, 0, resp_def);
3438 svoboda 669
	proto_add_oper(p, CONSOLE_CLEAR, o);
3474 svoboda 670
 
671
	arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
672
	o = oper_new("goto", 2, arg_def, V_VOID, 0, resp_def);
3438 svoboda 673
	proto_add_oper(p, CONSOLE_GOTO, o);
3474 svoboda 674
 
675
	resp_def[0] = V_INTEGER; resp_def[1] = V_INTEGER;
676
	o = oper_new("getsize", 0, arg_def, V_INTEGER, 2, resp_def);
3438 svoboda 677
	proto_add_oper(p, CONSOLE_GETSIZE, o);
3474 svoboda 678
	o = oper_new("flush", 0, arg_def, V_VOID, 0, resp_def);
3438 svoboda 679
	proto_add_oper(p, CONSOLE_FLUSH, o);
3474 svoboda 680
 
4338 svoboda 681
	arg_def[0] = V_INTEGER;
4341 svoboda 682
	o = oper_new("set_style", 1, arg_def, V_VOID, 0, resp_def);
4338 svoboda 683
	proto_add_oper(p, CONSOLE_SET_STYLE, o);
684
	arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER; arg_def[2] = V_INTEGER;
4341 svoboda 685
	o = oper_new("set_color", 3, arg_def, V_VOID, 0, resp_def);
4338 svoboda 686
	proto_add_oper(p, CONSOLE_SET_COLOR, o);
3474 svoboda 687
	arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
4341 svoboda 688
	o = oper_new("set_rgb_color", 2, arg_def, V_VOID, 0, resp_def);
4338 svoboda 689
	proto_add_oper(p, CONSOLE_SET_RGB_COLOR, o);
3474 svoboda 690
	o = oper_new("cursor_visibility", 1, arg_def, V_VOID, 0, resp_def);
3438 svoboda 691
	proto_add_oper(p, CONSOLE_CURSOR_VISIBILITY, o);
692
 
693
	proto_console = p;
694
	proto_register(SERVICE_CONSOLE, p);
695
}
696
 
697
static void print_syntax()
698
{
3447 svoboda 699
	printf("Syntax:\n");
700
	printf("\ttrace [+<events>] <executable> [<arg1> [...]]\n");
701
	printf("or\ttrace [+<events>] -t <task_id>\n");
3444 svoboda 702
	printf("Events: (default is +tp)\n");
703
	printf("\n");
704
	printf("\tt ... Thread creation and termination\n");
705
	printf("\ts ... System calls\n");
706
	printf("\ti ... Low-level IPC\n");
707
	printf("\tp ... Protocol level\n");
708
	printf("\n");
3447 svoboda 709
	printf("Examples:\n");
710
	printf("\ttrace +s /app/tetris\n");
711
	printf("\ttrace +tsip -t 12\n");
3438 svoboda 712
}
713
 
3444 svoboda 714
static display_mask_t parse_display_mask(char *text)
3438 svoboda 715
{
3444 svoboda 716
	display_mask_t dm;
717
	char *c;
718
 
719
	c = text;
720
 
721
	while (*c) {
722
		switch (*c) {
723
		case 't': dm = dm | DM_THREAD; break;
724
		case 's': dm = dm | DM_SYSCALL; break;
725
		case 'i': dm = dm | DM_IPC; break;
726
		case 'p': dm = dm | DM_SYSTEM | DM_USER; break;
727
		default:
3674 svoboda 728
			printf("Unexpected event type '%c'.\n", *c);
3444 svoboda 729
			exit(1);
730
		}
731
 
732
		++c;
733
	}
734
 
735
	return dm;
736
}
737
 
738
static int parse_args(int argc, char *argv[])
739
{
740
	char *arg;
3438 svoboda 741
	char *err_p;
742
 
3447 svoboda 743
	task_id = 0;
744
 
3444 svoboda 745
	--argc; ++argv;
746
 
3447 svoboda 747
	while (argc > 0) {
3444 svoboda 748
		arg = *argv;
749
		if (arg[0] == '+') {
750
			display_mask = parse_display_mask(&arg[1]);
3447 svoboda 751
		} else if (arg[0] == '-') {
752
			if (arg[1] == 't') {
753
				/* Trace an already running task */
754
				--argc; ++argv;
755
				task_id = strtol(*argv, &err_p, 10);
3474 svoboda 756
				task_ldr = NULL;
3447 svoboda 757
				if (*err_p) {
758
					printf("Task ID syntax error\n");
759
					print_syntax();
760
					return -1;
761
				}
762
			} else {
763
				printf("Uknown option '%s'\n", arg[0]);
764
				print_syntax();
765
				return -1;
766
			}
3444 svoboda 767
		} else {
3447 svoboda 768
			break;
3444 svoboda 769
		}
770
 
771
		--argc; ++argv;
772
	}
773
 
3447 svoboda 774
	if (task_id != 0) {
3474 svoboda 775
		if (argc == 0) return 0;
3447 svoboda 776
		printf("Extra arguments\n");
3438 svoboda 777
		print_syntax();
3447 svoboda 778
		return -1;
3438 svoboda 779
	}
780
 
3447 svoboda 781
	if (argc < 1) {
782
		printf("Missing argument\n");
3438 svoboda 783
		print_syntax();
3444 svoboda 784
		return -1;
3438 svoboda 785
	}
786
 
3474 svoboda 787
	/* Preload the specified program file. */
3447 svoboda 788
	printf("Spawning '%s' with arguments:\n", *argv);
789
	{
790
		char **cp = argv;
791
		while (*cp) printf("'%s'\n", *cp++);
792
	}
3474 svoboda 793
	task_ldr = preload_task(*argv, argv, &task_id);
3447 svoboda 794
 
3444 svoboda 795
	return 0;
796
}
797
 
798
int main(int argc, char *argv[])
799
{
3474 svoboda 800
	int rc;
801
 
3444 svoboda 802
	printf("System Call / IPC Tracer\n");
3674 svoboda 803
	printf("Controls: Q - Quit, P - Pause, R - Resume\n");
3444 svoboda 804
 
805
	display_mask = DM_THREAD | DM_SYSTEM | DM_USER;
806
 
807
	if (parse_args(argc, argv) < 0)
808
		return 1;
809
 
3438 svoboda 810
	main_init();
3444 svoboda 811
 
3474 svoboda 812
	rc = connect_task(task_id);
813
	if (rc < 0) {
3674 svoboda 814
		printf("Failed connecting to task %lld.\n", task_id);
3474 svoboda 815
		return 1;
816
	}
817
 
3674 svoboda 818
	printf("Connected to task %lld.\n", task_id);
3474 svoboda 819
 
820
	if (task_ldr != NULL) {
821
		program_run();
822
	}
823
 
824
	trace_task(task_id);
825
 
3444 svoboda 826
	return 0;
3438 svoboda 827
}
828
 
829
/** @}
830
 */