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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>
3470 svoboda 44
#include <loader/loader.h>
3438 svoboda 45
 
3485 jermar 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"
52
#include "../../srv/console/console.h"
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
3454 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
 
3454 svoboda 68
uintptr_t thash;
3438 svoboda 69
volatile int paused;
70
 
3454 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;
3470 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
 
3470 svoboda 80
static int program_run_fibril(void *arg);
81
 
82
static void program_run(void)
3438 svoboda 83
{
3470 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
 
3470 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
 
3454 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++) {
3454 svoboda 172
        printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);
3438 svoboda 173
    }
3454 svoboda 174
    printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));
3438 svoboda 175
 
176
    return 0;
177
}
178
 
3455 svoboda 179
void val_print(sysarg_t val, val_type_t v_type)
3438 svoboda 180
{
3452 svoboda 181
    switch (v_type) {
182
    case V_VOID:
183
        printf("<void>");
184
        break;
185
 
186
    case V_INTEGER:
3455 svoboda 187
        printf("%ld", val);
3452 svoboda 188
        break;
189
 
190
    case V_HASH:
3470 svoboda 191
    case V_PTR:
3455 svoboda 192
        printf("0x%08lx", val);
3452 svoboda 193
        break;
194
 
195
    case V_ERRNO:
196
        if (val >= -15 && val <= 0) {
3455 svoboda 197
            printf("%ld %s (%s)", val,
3452 svoboda 198
                err_desc[-val].name,
199
                err_desc[-val].desc);
3438 svoboda 200
        } else {
3455 svoboda 201
            printf("%ld", val);
3438 svoboda 202
        }
3452 svoboda 203
        break;
204
    case V_INT_ERRNO:
205
        if (val >= -15 && val < 0) {
3455 svoboda 206
            printf("%ld %s (%s)", val,
3452 svoboda 207
                err_desc[-val].name,
208
                err_desc[-val].desc);
3438 svoboda 209
        } else {
3455 svoboda 210
            printf("%ld", val);
3438 svoboda 211
        }
3452 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;
3455 svoboda 225
            default: printf("'\\x%02lX'", val); break;
3452 svoboda 226
            }
227
        }
228
        break;
3438 svoboda 229
    }
3452 svoboda 230
}
231
 
232
 
3455 svoboda 233
static void print_sc_retval(sysarg_t retval, val_type_t val_type)
3452 svoboda 234
{
235
    printf(" -> ");
236
    val_print(retval, val_type);
3438 svoboda 237
    putchar('\n');
238
}
239
 
3454 svoboda 240
static void print_sc_args(sysarg_t *sc_args, int n)
3438 svoboda 241
{
242
    int i;
243
 
244
    putchar('(');
3454 svoboda 245
    if (n > 0) printf("%ld", sc_args[0]);
3452 svoboda 246
    for (i = 1; i < n; i++) {
3454 svoboda 247
        printf(", %ld", sc_args[i]);
3438 svoboda 248
    }
249
    putchar(')');
250
}
251
 
3454 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;
3454 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
 
3454 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
 
3454 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
 
3454 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
 
3454 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
 
3454 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
{
3454 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
 
3454 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
{
3454 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
 
3454 svoboda 428
static void event_thread_b(uintptr_t hash)
3438 svoboda 429
{
430
    async_serialize_start();
3454 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;
3454 svoboda 441
    uintptr_t thread_hash;
3438 svoboda 442
    unsigned thread_id;
3454 svoboda 443
    sysarg_t val0, val1;
3438 svoboda 444
 
3454 svoboda 445
    thread_hash = (uintptr_t)thread_hash_arg;
3438 svoboda 446
    thread_id = next_thread_id++;
447
 
3605 svoboda 448
    printf("Start tracing thread [%d] (hash 0x%lx).\n", thread_id, thread_hash);
3438 svoboda 449
 
450
    while (!abort_trace) {
451
 
3603 svoboda 452
        if (paused) {
3605 svoboda 453
            printf("Press R to resume (and be patient).\n");
3603 svoboda 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:
3605 svoboda 487
                printf("Thread 0x%lx exited.\n", val0);
3438 svoboda 488
                abort_trace = 1;
489
                break;
490
            default:
3605 svoboda 491
                printf("Unknown event type %d.\n", ev_type);
3438 svoboda 492
                break;
493
            }
494
        }
495
 
496
    }
497
 
3605 svoboda 498
    printf("Finished tracing thread [%d].\n", thread_id);
3438 svoboda 499
    return 0;
500
}
501
 
3454 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
 
3470 svoboda 515
static loader_t *preload_task(const char *path, char *const argv[],
516
    task_id_t *task_id)
3438 svoboda 517
{
3470 svoboda 518
    loader_t *ldr;
519
    int rc;
520
 
521
    /* Spawn a program loader */   
3566 svoboda 522
    ldr = loader_spawn(path);
3470 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') {
3603 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;
3603 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
 
3452 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");
3452 svoboda 635
    o = oper_new("read", 1, arg_def, V_ERRNO, 1, resp_def);
3438 svoboda 636
    proto_add_oper(p, VFS_READ, o);
3452 svoboda 637
    o = oper_new("write", 1, arg_def, V_ERRNO, 1, resp_def);
3438 svoboda 638
    proto_add_oper(p, VFS_WRITE, o);
3452 svoboda 639
    o = oper_new("truncate", 5, arg_def, V_ERRNO, 0, resp_def);
3438 svoboda 640
    proto_add_oper(p, VFS_TRUNCATE, o);
3452 svoboda 641
    o = oper_new("mount", 2, arg_def, V_ERRNO, 0, resp_def);
3438 svoboda 642
    proto_add_oper(p, VFS_MOUNT, o);
3452 svoboda 643
/*  o = oper_new("unmount", 0, arg_def);
644
    proto_add_oper(p, VFS_UNMOUNT, o);*/
3438 svoboda 645
 
646
    proto_register(SERVICE_VFS, p);
647
 
648
    p = proto_new("console");
3452 svoboda 649
    resp_def[0] = V_CHAR;
650
    o = oper_new("getchar", 0, arg_def, V_INTEGER, 2, resp_def);
3438 svoboda 651
    proto_add_oper(p, CONSOLE_GETCHAR, o);
3452 svoboda 652
 
653
    arg_def[0] = V_CHAR;
654
    o = oper_new("putchar", 1, arg_def, V_VOID, 0, resp_def);
3438 svoboda 655
    proto_add_oper(p, CONSOLE_PUTCHAR, o);
3452 svoboda 656
    o = oper_new("clear", 0, arg_def, V_VOID, 0, resp_def);
3438 svoboda 657
    proto_add_oper(p, CONSOLE_CLEAR, o);
3452 svoboda 658
 
659
    arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
660
    o = oper_new("goto", 2, arg_def, V_VOID, 0, resp_def);
3438 svoboda 661
    proto_add_oper(p, CONSOLE_GOTO, o);
3452 svoboda 662
 
663
    resp_def[0] = V_INTEGER; resp_def[1] = V_INTEGER;
664
    o = oper_new("getsize", 0, arg_def, V_INTEGER, 2, resp_def);
3438 svoboda 665
    proto_add_oper(p, CONSOLE_GETSIZE, o);
3452 svoboda 666
    o = oper_new("flush", 0, arg_def, V_VOID, 0, resp_def);
3438 svoboda 667
    proto_add_oper(p, CONSOLE_FLUSH, o);
3452 svoboda 668
 
669
    arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
670
    o = oper_new("set_style", 2, arg_def, V_INTEGER, 0, resp_def);
3438 svoboda 671
    proto_add_oper(p, CONSOLE_SET_STYLE, o);
3452 svoboda 672
    o = oper_new("cursor_visibility", 1, arg_def, V_VOID, 0, resp_def);
3438 svoboda 673
    proto_add_oper(p, CONSOLE_CURSOR_VISIBILITY, o);
674
 
675
    proto_console = p;
676
    proto_register(SERVICE_CONSOLE, p);
677
}
678
 
679
static void print_syntax()
680
{
3447 svoboda 681
    printf("Syntax:\n");
682
    printf("\ttrace [+<events>] <executable> [<arg1> [...]]\n");
683
    printf("or\ttrace [+<events>] -t <task_id>\n");
3444 svoboda 684
    printf("Events: (default is +tp)\n");
685
    printf("\n");
686
    printf("\tt ... Thread creation and termination\n");
687
    printf("\ts ... System calls\n");
688
    printf("\ti ... Low-level IPC\n");
689
    printf("\tp ... Protocol level\n");
690
    printf("\n");
3447 svoboda 691
    printf("Examples:\n");
692
    printf("\ttrace +s /app/tetris\n");
693
    printf("\ttrace +tsip -t 12\n");
3438 svoboda 694
}
695
 
3444 svoboda 696
static display_mask_t parse_display_mask(char *text)
3438 svoboda 697
{
3444 svoboda 698
    display_mask_t dm;
699
    char *c;
700
 
701
    c = text;
702
 
703
    while (*c) {
704
        switch (*c) {
705
        case 't': dm = dm | DM_THREAD; break;
706
        case 's': dm = dm | DM_SYSCALL; break;
707
        case 'i': dm = dm | DM_IPC; break;
708
        case 'p': dm = dm | DM_SYSTEM | DM_USER; break;
709
        default:
3605 svoboda 710
            printf("Unexpected event type '%c'.\n", *c);
3444 svoboda 711
            exit(1);
712
        }
713
 
714
        ++c;
715
    }
716
 
717
    return dm;
718
}
719
 
720
static int parse_args(int argc, char *argv[])
721
{
722
    char *arg;
3438 svoboda 723
    char *err_p;
724
 
3447 svoboda 725
    task_id = 0;
726
 
3444 svoboda 727
    --argc; ++argv;
728
 
3447 svoboda 729
    while (argc > 0) {
3444 svoboda 730
        arg = *argv;
731
        if (arg[0] == '+') {
732
            display_mask = parse_display_mask(&arg[1]);
3447 svoboda 733
        } else if (arg[0] == '-') {
734
            if (arg[1] == 't') {
735
                /* Trace an already running task */
736
                --argc; ++argv;
737
                task_id = strtol(*argv, &err_p, 10);
3470 svoboda 738
                task_ldr = NULL;
3447 svoboda 739
                if (*err_p) {
740
                    printf("Task ID syntax error\n");
741
                    print_syntax();
742
                    return -1;
743
                }
744
            } else {
745
                printf("Uknown option '%s'\n", arg[0]);
746
                print_syntax();
747
                return -1;
748
            }
3444 svoboda 749
        } else {
3447 svoboda 750
            break;
3444 svoboda 751
        }
752
 
753
        --argc; ++argv;
754
    }
755
 
3447 svoboda 756
    if (task_id != 0) {
3454 svoboda 757
        if (argc == 0) return 0;
3447 svoboda 758
        printf("Extra arguments\n");
3438 svoboda 759
        print_syntax();
3447 svoboda 760
        return -1;
3438 svoboda 761
    }
762
 
3447 svoboda 763
    if (argc < 1) {
764
        printf("Missing argument\n");
3438 svoboda 765
        print_syntax();
3444 svoboda 766
        return -1;
3438 svoboda 767
    }
768
 
3470 svoboda 769
    /* Preload the specified program file. */
3447 svoboda 770
    printf("Spawning '%s' with arguments:\n", *argv);
771
    {
772
        char **cp = argv;
773
        while (*cp) printf("'%s'\n", *cp++);
774
    }
3470 svoboda 775
    task_ldr = preload_task(*argv, argv, &task_id);
3447 svoboda 776
 
3444 svoboda 777
    return 0;
778
}
779
 
780
int main(int argc, char *argv[])
781
{
3470 svoboda 782
    int rc;
783
 
3444 svoboda 784
    printf("System Call / IPC Tracer\n");
3605 svoboda 785
    printf("Controls: Q - Quit, P - Pause, R - Resume\n");
3444 svoboda 786
 
787
    display_mask = DM_THREAD | DM_SYSTEM | DM_USER;
788
 
789
    if (parse_args(argc, argv) < 0)
790
        return 1;
791
 
3438 svoboda 792
    main_init();
3444 svoboda 793
 
3470 svoboda 794
    rc = connect_task(task_id);
795
    if (rc < 0) {
3605 svoboda 796
        printf("Failed connecting to task %lld.\n", task_id);
3470 svoboda 797
        return 1;
798
    }
799
 
3605 svoboda 800
    printf("Connected to task %lld.\n", task_id);
3470 svoboda 801
 
802
    if (task_ldr != NULL) {
803
        program_run();
804
    }
805
 
806
    trace_task(task_id);
807
 
3444 svoboda 808
    return 0;
3438 svoboda 809
}
810
 
811
/** @}
812
 */