source: mainline/uspace/app/trace/trace.c@ d4b9d28

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d4b9d28 was 3bf907a, checked in by Martin Decky <martin@…>, 16 years ago

be more pedantic about undefined function prototypes (to avoid memory access traps)
add missing header files
  • Property mode set to 100644
File size: 17.5 KB
Line 
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>
43#include <task.h>
44#include <mem.h>
45#include <string.h>
46#include <loader/loader.h>
47
48#include <libc.h>
49
50// Temporary: service and method names
51#include "proto.h"
52#include <ipc/services.h>
53#include "../../srv/vfs/vfs.h"
54#include <ipc/console.h>
55
56#include "syscalls.h"
57#include "ipcp.h"
58#include "errors.h"
59#include "trace.h"
60
61#define THBUF_SIZE 64
62uintptr_t thread_hash_buf[THBUF_SIZE];
63int n_threads;
64
65int next_thread_id;
66
67int phoneid;
68int abort_trace;
69
70uintptr_t thash;
71volatile int paused;
72
73void thread_trace_start(uintptr_t thread_hash);
74
75static proto_t *proto_console;
76static task_id_t task_id;
77static loader_t *task_ldr;
78
79/** Combination of events/data to print. */
80display_mask_t display_mask;
81
82static int program_run_fibril(void *arg);
83
84static void program_run(void)
85{
86 fid_t fid;
87
88 fid = fibril_create(program_run_fibril, NULL);
89 if (fid == 0) {
90 printf("Error creating fibril\n");
91 exit(1);
92 }
93
94 fibril_add_ready(fid);
95}
96
97static int program_run_fibril(void *arg)
98{
99 int rc;
100
101 /*
102 * This must be done in background as it will block until
103 * we let the task reply to this call.
104 */
105 rc = loader_run(task_ldr);
106 if (rc != 0) {
107 printf("Error running program\n");
108 exit(1);
109 }
110
111 free(task_ldr);
112 task_ldr = NULL;
113
114 printf("program_run_fibril exiting\n");
115 return 0;
116}
117
118
119static int connect_task(task_id_t task_id)
120{
121 int rc;
122
123 rc = ipc_connect_kbox(task_id);
124
125 if (rc == ENOTSUP) {
126 printf("You do not have userspace debugging support "
127 "compiled in the kernel.\n");
128 printf("Compile kernel with 'Support for userspace debuggers' "
129 "(CONFIG_UDEBUG) enabled.\n");
130 return rc;
131 }
132
133 if (rc < 0) {
134 printf("Error connecting\n");
135 printf("ipc_connect_task(%lld) -> %d ", task_id, rc);
136 return rc;
137 }
138
139 phoneid = rc;
140
141 rc = udebug_begin(phoneid);
142 if (rc < 0) {
143 printf("udebug_begin() -> %d\n", rc);
144 return rc;
145 }
146
147 rc = udebug_set_evmask(phoneid, UDEBUG_EM_ALL);
148 if (rc < 0) {
149 printf("udebug_set_evmask(0x%x) -> %d\n ", UDEBUG_EM_ALL, rc);
150 return rc;
151 }
152
153 return 0;
154}
155
156static int get_thread_list(void)
157{
158 int rc;
159 size_t tb_copied;
160 size_t tb_needed;
161 int i;
162
163 rc = udebug_thread_read(phoneid, thread_hash_buf,
164 THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
165 if (rc < 0) {
166 printf("udebug_thread_read() -> %d\n", rc);
167 return rc;
168 }
169
170 n_threads = tb_copied / sizeof(uintptr_t);
171
172 printf("Threads:");
173 for (i = 0; i < n_threads; i++) {
174 printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);
175 }
176 printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));
177
178 return 0;
179}
180
181void val_print(sysarg_t val, val_type_t v_type)
182{
183 switch (v_type) {
184 case V_VOID:
185 printf("<void>");
186 break;
187
188 case V_INTEGER:
189 printf("%ld", val);
190 break;
191
192 case V_HASH:
193 case V_PTR:
194 printf("0x%08lx", val);
195 break;
196
197 case V_ERRNO:
198 if (val >= -15 && val <= 0) {
199 printf("%ld %s (%s)", val,
200 err_desc[-val].name,
201 err_desc[-val].desc);
202 } else {
203 printf("%ld", val);
204 }
205 break;
206 case V_INT_ERRNO:
207 if (val >= -15 && val < 0) {
208 printf("%ld %s (%s)", val,
209 err_desc[-val].name,
210 err_desc[-val].desc);
211 } else {
212 printf("%ld", val);
213 }
214 break;
215
216 case V_CHAR:
217 if (val >= 0x20 && val < 0x7f) {
218 printf("'%c'", val);
219 } else {
220 switch (val) {
221 case '\a': printf("'\\a'"); break;
222 case '\b': printf("'\\b'"); break;
223 case '\n': printf("'\\n'"); break;
224 case '\r': printf("'\\r'"); break;
225 case '\t': printf("'\\t'"); break;
226 case '\\': printf("'\\\\'"); break;
227 default: printf("'\\x%02lX'", val); break;
228 }
229 }
230 break;
231 }
232}
233
234
235static void print_sc_retval(sysarg_t retval, val_type_t val_type)
236{
237 printf(" -> ");
238 val_print(retval, val_type);
239 putchar('\n');
240}
241
242static void print_sc_args(sysarg_t *sc_args, int n)
243{
244 int i;
245
246 putchar('(');
247 if (n > 0) printf("%ld", sc_args[0]);
248 for (i = 1; i < n; i++) {
249 printf(", %ld", sc_args[i]);
250 }
251 putchar(')');
252}
253
254static void sc_ipc_call_async_fast(sysarg_t *sc_args, sysarg_t sc_rc)
255{
256 ipc_call_t call;
257 ipcarg_t phoneid;
258
259 if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
260 return;
261
262 phoneid = sc_args[0];
263
264 IPC_SET_METHOD(call, sc_args[1]);
265 IPC_SET_ARG1(call, sc_args[2]);
266 IPC_SET_ARG2(call, sc_args[3]);
267 IPC_SET_ARG3(call, sc_args[4]);
268 IPC_SET_ARG4(call, sc_args[5]);
269 IPC_SET_ARG5(call, 0);
270
271 ipcp_call_out(phoneid, &call, sc_rc);
272}
273
274static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)
275{
276 ipc_call_t call;
277 int rc;
278
279 if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
280 return;
281
282 memset(&call, 0, sizeof(call));
283 rc = udebug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args));
284
285 if (rc >= 0) {
286 ipcp_call_out(sc_args[0], &call, sc_rc);
287 }
288}
289
290static void sc_ipc_call_sync_fast(sysarg_t *sc_args)
291{
292 ipc_call_t question, reply;
293 int rc;
294 int phoneidx;
295
296// printf("sc_ipc_call_sync_fast()\n");
297 phoneidx = sc_args[0];
298
299 IPC_SET_METHOD(question, sc_args[1]);
300 IPC_SET_ARG1(question, sc_args[2]);
301 IPC_SET_ARG2(question, sc_args[3]);
302 IPC_SET_ARG3(question, sc_args[4]);
303 IPC_SET_ARG4(question, 0);
304 IPC_SET_ARG5(question, 0);
305
306// printf("memset\n");
307 memset(&reply, 0, sizeof(reply));
308// printf("udebug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n",
309// phoneid, &reply.args, sc_args[5], sizeof(reply.args));
310 rc = udebug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args));
311// printf("dmr->%d\n", rc);
312 if (rc < 0) return;
313
314// printf("call ipc_call_sync\n");
315 ipcp_call_sync(phoneidx, &question, &reply);
316}
317
318static void sc_ipc_call_sync_slow(sysarg_t *sc_args)
319{
320 ipc_call_t question, reply;
321 int rc;
322
323 memset(&question, 0, sizeof(question));
324 rc = udebug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args));
325 printf("dmr->%d\n", rc);
326 if (rc < 0) return;
327
328 memset(&reply, 0, sizeof(reply));
329 rc = udebug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args));
330 printf("dmr->%d\n", rc);
331 if (rc < 0) return;
332
333 ipcp_call_sync(sc_args[0], &question, &reply);
334}
335
336static void sc_ipc_wait(sysarg_t *sc_args, int sc_rc)
337{
338 ipc_call_t call;
339 int rc;
340
341 if (sc_rc == 0) return;
342
343 memset(&call, 0, sizeof(call));
344 rc = udebug_mem_read(phoneid, &call, sc_args[0], sizeof(call));
345// printf("udebug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n",
346// phoneid, (int)&call, sc_args[0], sizeof(call), rc);
347
348 if (rc >= 0) {
349 ipcp_call_in(&call, sc_rc);
350 }
351}
352
353static void event_syscall_b(unsigned thread_id, uintptr_t thread_hash,
354 unsigned sc_id, sysarg_t sc_rc)
355{
356 sysarg_t sc_args[6];
357 int rc;
358
359 /* Read syscall arguments */
360 rc = udebug_args_read(phoneid, thread_hash, sc_args);
361
362 async_serialize_start();
363
364// printf("[%d] ", thread_id);
365
366 if (rc < 0) {
367 printf("error\n");
368 async_serialize_end();
369 return;
370 }
371
372 if ((display_mask & DM_SYSCALL) != 0) {
373 /* Print syscall name and arguments */
374 printf("%s", syscall_desc[sc_id].name);
375 print_sc_args(sc_args, syscall_desc[sc_id].n_args);
376 }
377
378 async_serialize_end();
379}
380
381static void event_syscall_e(unsigned thread_id, uintptr_t thread_hash,
382 unsigned sc_id, sysarg_t sc_rc)
383{
384 sysarg_t sc_args[6];
385 int rv_type;
386 int rc;
387
388 /* Read syscall arguments */
389 rc = udebug_args_read(phoneid, thread_hash, sc_args);
390
391 async_serialize_start();
392
393// printf("[%d] ", thread_id);
394
395 if (rc < 0) {
396 printf("error\n");
397 async_serialize_end();
398 return;
399 }
400
401 if ((display_mask & DM_SYSCALL) != 0) {
402 /* Print syscall return value */
403 rv_type = syscall_desc[sc_id].rv_type;
404 print_sc_retval(sc_rc, rv_type);
405 }
406
407 switch (sc_id) {
408 case SYS_IPC_CALL_ASYNC_FAST:
409 sc_ipc_call_async_fast(sc_args, sc_rc);
410 break;
411 case SYS_IPC_CALL_ASYNC_SLOW:
412 sc_ipc_call_async_slow(sc_args, sc_rc);
413 break;
414 case SYS_IPC_CALL_SYNC_FAST:
415 sc_ipc_call_sync_fast(sc_args);
416 break;
417 case SYS_IPC_CALL_SYNC_SLOW:
418 sc_ipc_call_sync_slow(sc_args);
419 break;
420 case SYS_IPC_WAIT:
421 sc_ipc_wait(sc_args, sc_rc);
422 break;
423 default:
424 break;
425 }
426
427 async_serialize_end();
428}
429
430static void event_thread_b(uintptr_t hash)
431{
432 async_serialize_start();
433 printf("New thread, hash 0x%lx\n", hash);
434 async_serialize_end();
435
436 thread_trace_start(hash);
437}
438
439static int trace_loop(void *thread_hash_arg)
440{
441 int rc;
442 unsigned ev_type;
443 uintptr_t thread_hash;
444 unsigned thread_id;
445 sysarg_t val0, val1;
446
447 thread_hash = (uintptr_t)thread_hash_arg;
448 thread_id = next_thread_id++;
449
450 printf("Start tracing thread [%d] (hash 0x%lx).\n", thread_id, thread_hash);
451
452 while (!abort_trace) {
453
454 if (paused) {
455 printf("Press R to resume (and be patient).\n");
456 while (paused) {
457 usleep(1000000);
458 fibril_yield();
459 printf(".");
460 }
461 printf("Resumed\n");
462 }
463
464 /* Run thread until an event occurs */
465 rc = udebug_go(phoneid, thread_hash,
466 &ev_type, &val0, &val1);
467
468// printf("rc = %d, ev_type=%d\n", rc, ev_type);
469 if (ev_type == UDEBUG_EVENT_FINISHED) {
470 /* Done tracing this thread */
471 break;
472 }
473
474 if (rc >= 0) {
475 switch (ev_type) {
476 case UDEBUG_EVENT_SYSCALL_B:
477 event_syscall_b(thread_id, thread_hash, val0, (int)val1);
478 break;
479 case UDEBUG_EVENT_SYSCALL_E:
480 event_syscall_e(thread_id, thread_hash, val0, (int)val1);
481 break;
482 case UDEBUG_EVENT_STOP:
483 printf("Stop event\n");
484 break;
485 case UDEBUG_EVENT_THREAD_B:
486 event_thread_b(val0);
487 break;
488 case UDEBUG_EVENT_THREAD_E:
489 printf("Thread 0x%lx exited.\n", val0);
490 abort_trace = 1;
491 break;
492 default:
493 printf("Unknown event type %d.\n", ev_type);
494 break;
495 }
496 }
497
498 }
499
500 printf("Finished tracing thread [%d].\n", thread_id);
501 return 0;
502}
503
504void thread_trace_start(uintptr_t thread_hash)
505{
506 fid_t fid;
507
508 thash = thread_hash;
509
510 fid = fibril_create(trace_loop, (void *)thread_hash);
511 if (fid == 0) {
512 printf("Warning: Failed creating fibril\n");
513 }
514 fibril_add_ready(fid);
515}
516
517static loader_t *preload_task(const char *path, char *const argv[],
518 task_id_t *task_id)
519{
520 loader_t *ldr;
521 int rc;
522
523 /* Spawn a program loader */
524 ldr = loader_connect();
525 if (ldr == NULL)
526 return 0;
527
528 /* Get task ID. */
529 rc = loader_get_task_id(ldr, task_id);
530 if (rc != EOK)
531 goto error;
532
533 /* Send program pathname */
534 rc = loader_set_pathname(ldr, path);
535 if (rc != EOK)
536 goto error;
537
538 /* Send arguments */
539 rc = loader_set_args(ldr, argv);
540 if (rc != EOK)
541 goto error;
542
543 /* Load the program. */
544 rc = loader_load_program(ldr);
545 if (rc != EOK)
546 goto error;
547
548 /* Success */
549 return ldr;
550
551 /* Error exit */
552error:
553 loader_abort(ldr);
554 free(ldr);
555 return NULL;
556}
557
558static void trace_task(task_id_t task_id)
559{
560 int i;
561 int rc;
562 int c;
563
564 ipcp_init();
565
566 /*
567 * User apps now typically have console on phone 3.
568 * (Phones 1 and 2 are used by the loader).
569 */
570 ipcp_connection_set(3, 0, proto_console);
571
572 rc = get_thread_list();
573 if (rc < 0) {
574 printf("Failed to get thread list (error %d)\n", rc);
575 return;
576 }
577
578 abort_trace = 0;
579
580 for (i = 0; i < n_threads; i++) {
581 thread_trace_start(thread_hash_buf[i]);
582 }
583
584 while(1) {
585 c = getchar();
586 if (c == 'q') break;
587 if (c == 'p') {
588 printf("Pause...\n");
589 paused = 1;
590 rc = udebug_stop(phoneid, thash);
591 printf("stop -> %d\n", rc);
592 }
593 if (c == 'r') {
594 paused = 0;
595 printf("Resume...\n");
596 }
597 }
598
599 printf("\nTerminate debugging session...\n");
600 abort_trace = 1;
601 udebug_end(phoneid);
602 ipc_hangup(phoneid);
603
604 ipcp_cleanup();
605
606 printf("Done\n");
607 return;
608}
609
610static void main_init(void)
611{
612 proto_t *p;
613 oper_t *o;
614
615 val_type_t arg_def[OPER_MAX_ARGS] = {
616 V_INTEGER,
617 V_INTEGER,
618 V_INTEGER,
619 V_INTEGER,
620 V_INTEGER
621 };
622
623 val_type_t resp_def[OPER_MAX_ARGS] = {
624 V_INTEGER,
625 V_INTEGER,
626 V_INTEGER,
627 V_INTEGER,
628 V_INTEGER
629 };
630
631 next_thread_id = 1;
632 paused = 0;
633
634 proto_init();
635
636 p = proto_new("vfs");
637 o = oper_new("read", 1, arg_def, V_ERRNO, 1, resp_def);
638 proto_add_oper(p, VFS_READ, o);
639 o = oper_new("write", 1, arg_def, V_ERRNO, 1, resp_def);
640 proto_add_oper(p, VFS_WRITE, o);
641 o = oper_new("truncate", 5, arg_def, V_ERRNO, 0, resp_def);
642 proto_add_oper(p, VFS_TRUNCATE, o);
643 o = oper_new("mount", 2, arg_def, V_ERRNO, 0, resp_def);
644 proto_add_oper(p, VFS_MOUNT, o);
645/* o = oper_new("unmount", 0, arg_def);
646 proto_add_oper(p, VFS_UNMOUNT, o);*/
647 o = oper_new("open", 2, arg_def, V_INT_ERRNO, 0, resp_def);
648 proto_add_oper(p, VFS_OPEN, o);
649 o = oper_new("close", 1, arg_def, V_ERRNO, 0, resp_def);
650 proto_add_oper(p, VFS_CLOSE, o);
651 o = oper_new("seek", 3, arg_def, V_ERRNO, 0, resp_def);
652 proto_add_oper(p, VFS_SEEK, o);
653 o = oper_new("mkdir", 1, arg_def, V_ERRNO, 0, resp_def);
654 proto_add_oper(p, VFS_MKDIR, o);
655 o = oper_new("unlink", 0, arg_def, V_ERRNO, 0, resp_def);
656 proto_add_oper(p, VFS_UNLINK, o);
657 o = oper_new("rename", 0, arg_def, V_ERRNO, 0, resp_def);
658 proto_add_oper(p, VFS_RENAME, o);
659
660 proto_register(SERVICE_VFS, p);
661
662 p = proto_new("console");
663 resp_def[0] = V_INTEGER; resp_def[1] = V_INTEGER;
664 resp_def[2] = V_INTEGER; resp_def[3] = V_CHAR;
665 o = oper_new("getkey", 0, arg_def, V_ERRNO, 4, resp_def);
666
667 arg_def[0] = V_CHAR;
668 o = oper_new("clear", 0, arg_def, V_VOID, 0, resp_def);
669 proto_add_oper(p, CONSOLE_CLEAR, o);
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);
673 proto_add_oper(p, CONSOLE_GOTO, o);
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);
677 proto_add_oper(p, CONSOLE_GET_SIZE, o);
678
679 arg_def[0] = V_INTEGER;
680 o = oper_new("set_style", 1, arg_def, V_VOID, 0, resp_def);
681 proto_add_oper(p, CONSOLE_SET_STYLE, o);
682 arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER; arg_def[2] = V_INTEGER;
683 o = oper_new("set_color", 3, arg_def, V_VOID, 0, resp_def);
684 proto_add_oper(p, CONSOLE_SET_COLOR, o);
685 arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
686 o = oper_new("set_rgb_color", 2, arg_def, V_VOID, 0, resp_def);
687 proto_add_oper(p, CONSOLE_SET_RGB_COLOR, o);
688 o = oper_new("cursor_visibility", 1, arg_def, V_VOID, 0, resp_def);
689 proto_add_oper(p, CONSOLE_CURSOR_VISIBILITY, o);
690
691 proto_console = p;
692 proto_register(SERVICE_CONSOLE, p);
693}
694
695static void print_syntax()
696{
697 printf("Syntax:\n");
698 printf("\ttrace [+<events>] <executable> [<arg1> [...]]\n");
699 printf("or\ttrace [+<events>] -t <task_id>\n");
700 printf("Events: (default is +tp)\n");
701 printf("\n");
702 printf("\tt ... Thread creation and termination\n");
703 printf("\ts ... System calls\n");
704 printf("\ti ... Low-level IPC\n");
705 printf("\tp ... Protocol level\n");
706 printf("\n");
707 printf("Examples:\n");
708 printf("\ttrace +s /app/tetris\n");
709 printf("\ttrace +tsip -t 12\n");
710}
711
712static display_mask_t parse_display_mask(char *text)
713{
714 display_mask_t dm;
715 char *c;
716
717 c = text;
718
719 while (*c) {
720 switch (*c) {
721 case 't': dm = dm | DM_THREAD; break;
722 case 's': dm = dm | DM_SYSCALL; break;
723 case 'i': dm = dm | DM_IPC; break;
724 case 'p': dm = dm | DM_SYSTEM | DM_USER; break;
725 default:
726 printf("Unexpected event type '%c'.\n", *c);
727 exit(1);
728 }
729
730 ++c;
731 }
732
733 return dm;
734}
735
736static int parse_args(int argc, char *argv[])
737{
738 char *arg;
739 char *err_p;
740
741 task_id = 0;
742
743 --argc; ++argv;
744
745 while (argc > 0) {
746 arg = *argv;
747 if (arg[0] == '+') {
748 display_mask = parse_display_mask(&arg[1]);
749 } else if (arg[0] == '-') {
750 if (arg[1] == 't') {
751 /* Trace an already running task */
752 --argc; ++argv;
753 task_id = strtol(*argv, &err_p, 10);
754 task_ldr = NULL;
755 if (*err_p) {
756 printf("Task ID syntax error\n");
757 print_syntax();
758 return -1;
759 }
760 } else {
761 printf("Uknown option '%s'\n", arg[0]);
762 print_syntax();
763 return -1;
764 }
765 } else {
766 break;
767 }
768
769 --argc; ++argv;
770 }
771
772 if (task_id != 0) {
773 if (argc == 0) return 0;
774 printf("Extra arguments\n");
775 print_syntax();
776 return -1;
777 }
778
779 if (argc < 1) {
780 printf("Missing argument\n");
781 print_syntax();
782 return -1;
783 }
784
785 /* Preload the specified program file. */
786 printf("Spawning '%s' with arguments:\n", *argv);
787 {
788 char **cp = argv;
789 while (*cp) printf("'%s'\n", *cp++);
790 }
791 task_ldr = preload_task(*argv, argv, &task_id);
792
793 return 0;
794}
795
796int main(int argc, char *argv[])
797{
798 int rc;
799
800 printf("System Call / IPC Tracer\n");
801 printf("Controls: Q - Quit, P - Pause, R - Resume\n");
802
803 display_mask = DM_THREAD | DM_SYSTEM | DM_USER;
804
805 if (parse_args(argc, argv) < 0)
806 return 1;
807
808 main_init();
809
810 rc = connect_task(task_id);
811 if (rc < 0) {
812 printf("Failed connecting to task %lld.\n", task_id);
813 return 1;
814 }
815
816 printf("Connected to task %lld.\n", task_id);
817
818 if (task_ldr != NULL) {
819 program_run();
820 }
821
822 trace_task(task_id);
823
824 return 0;
825}
826
827/** @}
828 */
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