WebSVN – HelenOS – Diff – /branches/tracing/uspace/app/debug/main.c


/*
 * Copyright (c) 2008 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup debug
 * @{
 */
/** @file
 */
 
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syscall.h>
#include <ipc/ipc.h>
#include <fibril.h>
#include <errno.h>
#include <udebug.h>
#include <async.h>
#include <string.h>
 
#include "cmd.h"
#include "include/arch.h"
#include "main.h"
 
void thread_debug_start(unsigned thread_hash);
 
#define INBUF_SIZE 64
char in_buf[INBUF_SIZE];
 
#define MAX_ARGC 10
int cmd_argc;
char *cmd_argv[MAX_ARGC + 1];   /* need one spare field for cmd_split() */
 
#define THBUF_SIZE 64
thash_t thread_hash_buf[THBUF_SIZE];
unsigned n_threads;
 
int next_thread_id;
 
int app_phone;
volatile bool abort_debug;
 
thash_t thash;
volatile int paused;
 
breakpoint_t brk_list[MAX_BRKPTS];
int lifted_brkpt;
 
void read_line(char *buffer, int n)
{
    char c;
    int i;
 
    i = 0;
    while (i < n - 1) {
        c = getchar();
        if (c == '\n') break;
        if (c == '\b') {
            if (i > 0) {
                putchar('\b');
                --i;
            }
            continue;
        }
       
        putchar(c);
        buffer[i++] = c;
    }
 
    putchar('\n');
    buffer[i] = '\0';
}
 
void command_split(char *cmd_str)
{
    char *p = cmd_str;
 
    if (*p == '\0') {
        cmd_argc = 0;
        return;
    }
 
    cmd_argc = 1;
    cmd_argv[0] = p;
 
    while (*p != '\0') {
        if (*p == ' ') {
            cmd_argv[cmd_argc++] = p + 1;
            *p = '\0';
        }
        ++p;
    }
}
 
void command_run(void)
{
    int i;
    int cmp_len;
    int len;
 
    int idx_found;
    int num_found;
 
    len = strlen(cmd_argv[0]);
    cmp_len = 1;
 
    while (cmp_len <= len + 1) {
 
        num_found = 0;
        i = 0;
        while (cmd_table[i].name != NULL) {
            if (strncmp(cmd_table[i].name, cmd_argv[0], cmp_len) == 0) {
                idx_found = i;
                ++num_found;
            }
            ++i;
        }
 
        if (num_found < 2) break;
 
        --cmp_len;
    }
 
    if (num_found == 0) {
        printf("Unknown command. Try one of:\n");
        cmd_help(0, NULL);
        return;
    }
 
    if (cmd_argc - 1 != cmd_table[idx_found].argc) {
        printf("Command '%s' expects %d arguments\n",
        cmd_table[idx_found].name, cmd_table[idx_found].argc);
        return;
    }
 
    (*cmd_table[idx_found].proc)(cmd_argc, cmd_argv);
}
 
 
int task_connect(int taskid)
{
    int rc;
    unsigned evmask;
 
    printf("ipc_connect_kbox(%d)... ", taskid);
    rc = ipc_connect_kbox(taskid);
    printf("-> %d\n", rc);
    app_phone = rc;
    if (rc < 0) return rc;
 
    printf("udebug_begin()... ");
    rc = udebug_begin(app_phone);
    printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B | UDEBUG_EM_SYSCALL_E);
    printf("udebug_set_evmask(0x%x)... ", evmask);
    rc = udebug_set_evmask(app_phone, evmask);
    printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    return 0;
}
 
int get_thread_list(void)
{
    int rc;
    int tb_copied;
    int tb_needed;
    int i;
 
    printf("send IPC_M_DEBUG_THREAD_READ message\n");
    rc = udebug_thread_read(app_phone, (unsigned)thread_hash_buf,
        THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
    printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    n_threads = tb_copied / sizeof(unsigned);
 
    printf("thread IDs:");
    for (i=0; i<n_threads; i++) {
        printf(" %u", thread_hash_buf[i]);
    }
    printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));
 
    return 0;
}
 
void event_thread_b(unsigned hash)
{
    async_serialize_start();
    printf("new thread, hash 0x%x\n", hash);
    async_serialize_end();
 
    thread_debug_start(hash);
}
 
static unsigned buffer[1024];
 
static void debug_event(thash_t thash, udebug_event_t ev_type, sysarg_t val0)
{
    switch (ev_type) {
    case UDEBUG_EVENT_STOP:
        printf("stop event\n");
        printf("waiting for resume\n");
        while (paused) {
            usleep(1000000);
            fibril_yield();
            printf(".");
        }
        printf("resumed\n");
        break;
    case UDEBUG_EVENT_THREAD_B:
        event_thread_b(val0);
        break;
    case UDEBUG_EVENT_THREAD_E:
        printf("thread 0x%x exited\n", val0);
        abort_debug = true;
        break;
    case UDEBUG_EVENT_BREAKPOINT:
 
        arch_event_breakpoint(thash);
        break;
    case UDEBUG_EVENT_TRAP:
 
        arch_event_trap(thash);
        break;
    default:
        printf("unknown event type %d\n", ev_type);
        break;
    }
}
 
void debug_loop(void *thread_hash_arg)
{
    int rc;
    udebug_event_t ev_type;
    unsigned thread_hash;
    unsigned thread_id;
    unsigned val0, val1;
 
    thread_hash = (unsigned)thread_hash_arg;
    thread_id = next_thread_id++;
 
    printf("debug_loop(%d)\n", thread_id); 
 
    while (!abort_debug) {
 
        printf("go\n");
        /* Run thread until an event occurs */
        rc = udebug_go(app_phone, thread_hash,
            &ev_type, &val0, &val1);
 
        if (ev_type == UDEBUG_EVENT_FINISHED) {
            printf("thread %u debugging finished\n", thread_id);
            break;
        }
 
        if (rc >= 0) debug_event(thread_hash, ev_type, val0);
    }
 
    printf("debug_loop(%d) exiting\n", thread_id);
}
 
void thread_debug_start(unsigned thread_hash)
{
    fid_t fid;
 
    thash = thread_hash;
 
    fid = fibril_create(debug_loop, (void *)thread_hash);
    if (fid == 0) {
        printf("Warning: Failed creating fibril\n");
    }
    fibril_add_ready(fid);
}
 
void debug_active_task(void)
{
    int taskid;
    int i;
    int rc;
    int c;
 
    printf("Breakpoint Debugger\n");
    printf("Press 'c' to connect\n");
    while ((i = getchar()) != 'c')
        putchar(i);
 
    taskid = 13;
    rc = task_connect(taskid);
    if (rc < 0) {
        printf("Failed to connect to task %d\n", taskid);
        return;
    }
 
    printf("Connected to task %d\n", taskid);
 
    rc = get_thread_list();
    if (rc < 0) {
        printf("Failed to get thread list (error %d)\n", rc);
        return;
    }
 
    abort_debug = false;
 
    for (i = 0; i < n_threads; i++) {
        thread_debug_start(thread_hash_buf[i]);
    }
 
    while (!quit) {
        printf("> ");
        read_line(in_buf, INBUF_SIZE);
        command_split(in_buf);
        if (cmd_argc == 0) continue;
 
        command_run();
    }
 
    printf("terminate debugging session...\n");
    abort_debug = true;
    udebug_end(app_phone);
    ipc_hangup(app_phone);
 
    printf("done\n");
    return;
}
 
static void main_init(void)
{
    next_thread_id = 1;
    paused = 0;
}
 
int main(void)
{
    main_init();
 
    while (1) {
        debug_active_task();
    }
}
 
/** @}
 */
 

Rev 2923	Rev 2924
1	/*	1	/*
2	* Copyright (c) 2008 Jiri Svoboda	2	* Copyright (c) 2008 Jiri Svoboda
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	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	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.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	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	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	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	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	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	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.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup debug	29	/** @addtogroup debug
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <stdio.h>	35	#include <stdio.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
37	#include <unistd.h>	37	#include <unistd.h>
38	#include <syscall.h>	38	#include <syscall.h>
39	#include <ipc/ipc.h>	39	#include <ipc/ipc.h>
40	#include <fibril.h>	40	#include <fibril.h>
41	#include <errno.h>	41	#include <errno.h>
42	#include <udebug.h>	42	#include <udebug.h>
43	#include <async.h>	43	#include <async.h>
44	#include <string.h>	44	#include <string.h>
45		45
46	#include "cmd.h"	46	#include "cmd.h"
47	#include "include/arch.h"	47	#include "include/arch.h"
48	#include "main.h"	48	#include "main.h"
49		49
50	void thread_debug_start(unsigned thread_hash);	50	void thread_debug_start(unsigned thread_hash);
51		51
52	#define INBUF_SIZE 64	52	#define INBUF_SIZE 64
53	char in_buf[INBUF_SIZE];	53	char in_buf[INBUF_SIZE];
54		54
55	#define MAX_ARGC 10	55	#define MAX_ARGC 10
56	int cmd_argc;	56	int cmd_argc;
57	char cmd_argv[MAX_ARGC + 1]; / need one spare field for cmd_split() */	57	char cmd_argv[MAX_ARGC + 1]; / need one spare field for cmd_split() */
58		58
59	#define THBUF_SIZE 64	59	#define THBUF_SIZE 64
60	thash_t thread_hash_buf[THBUF_SIZE];	60	thash_t thread_hash_buf[THBUF_SIZE];
61	unsigned n_threads;	61	unsigned n_threads;
62		62
63	int next_thread_id;	63	int next_thread_id;
64		64
65	int app_phone;	65	int app_phone;
66	volatile bool abort_debug;	66	volatile bool abort_debug;
67		67
68	thash_t thash;	68	thash_t thash;
69	volatile int paused;	69	volatile int paused;
70		70
71	breakpoint_t brk_list[MAX_BRKPTS];	71	breakpoint_t brk_list[MAX_BRKPTS];
72	int lifted_brkpt;	72	int lifted_brkpt;
73		73
74	void read_line(char *buffer, int n)	74	void read_line(char *buffer, int n)
75	{	75	{
76	char c;	76	char c;
77	int i;	77	int i;
78		78
79	i = 0;	79	i = 0;
80	while (i < n - 1) {	80	while (i < n - 1) {
81	c = getchar();	81	c = getchar();
82	if (c == '\n') break;	82	if (c == '\n') break;
83	if (c == '\b') {	83	if (c == '\b') {
84	if (i > 0) {	84	if (i > 0) {
85	putchar('\b');	85	putchar('\b');
86	--i;	86	--i;
87	}	87	}
88	continue;	88	continue;
89	}	89	}
90		90
91	putchar(c);	91	putchar(c);
92	buffer[i++] = c;	92	buffer[i++] = c;
93	}	93	}
94		94
95	putchar('\n');	95	putchar('\n');
96	buffer[i] = '\0';	96	buffer[i] = '\0';
97	}	97	}
98		98
99	void command_split(char *cmd_str)	99	void command_split(char *cmd_str)
100	{	100	{
101	char *p = cmd_str;	101	char *p = cmd_str;
102		102
103	if (*p == '\0') {	103	if (*p == '\0') {
104	cmd_argc = 0;	104	cmd_argc = 0;
105	return;	105	return;
106	}	106	}
107		107
108	cmd_argc = 1;	108	cmd_argc = 1;
109	cmd_argv[0] = p;	109	cmd_argv[0] = p;
110		110
111	while (*p != '\0') {	111	while (*p != '\0') {
112	if (*p == ' ') {	112	if (*p == ' ') {
113	cmd_argv[cmd_argc++] = p + 1;	113	cmd_argv[cmd_argc++] = p + 1;
114	*p = '\0';	114	*p = '\0';
115	}	115	}
116	++p;	116	++p;
117	}	117	}
118	}	118	}
119		119
120	void command_run(void)	120	void command_run(void)
121	{	121	{
122	int i;	122	int i;
123	int cmp_len;	123	int cmp_len;
124	int len;	124	int len;
125		125
126	int idx_found;	126	int idx_found;
127	int num_found;	127	int num_found;
128		128
129	len = strlen(cmd_argv[0]);	129	len = strlen(cmd_argv[0]);
130	cmp_len = 1;	130	cmp_len = 1;
131		131
132	while (cmp_len <= len + 1) {	132	while (cmp_len <= len + 1) {
133		133
134	num_found = 0;	134	num_found = 0;
135	i = 0;	135	i = 0;
136	while (cmd_table[i].name != NULL) {	136	while (cmd_table[i].name != NULL) {
137	if (strncmp(cmd_table[i].name, cmd_argv[0], cmp_len) == 0) {	137	if (strncmp(cmd_table[i].name, cmd_argv[0], cmp_len) == 0) {
138	idx_found = i;	138	idx_found = i;
139	++num_found;	139	++num_found;
140	}	140	}
141	++i;	141	++i;
142	}	142	}
143		143
144	if (num_found < 2) break;	144	if (num_found < 2) break;
145		145
146	--cmp_len;	146	--cmp_len;
147	}	147	}
148		148
149	if (num_found == 0) {	149	if (num_found == 0) {
150	printf("Unknown command. Try one of:\n");	150	printf("Unknown command. Try one of:\n");
151	cmd_help(0, NULL);	151	cmd_help(0, NULL);
152	return;	152	return;
153	}	153	}
154		154
155	if (cmd_argc - 1 != cmd_table[idx_found].argc) {	155	if (cmd_argc - 1 != cmd_table[idx_found].argc) {
156	printf("Command '%s' expects %d arguments\n",	156	printf("Command '%s' expects %d arguments\n",
157	cmd_table[idx_found].name, cmd_table[idx_found].argc);	157	cmd_table[idx_found].name, cmd_table[idx_found].argc);
158	return;	158	return;
159	}	159	}
160		160
161	(*cmd_table[idx_found].proc)(cmd_argc, cmd_argv);	161	(*cmd_table[idx_found].proc)(cmd_argc, cmd_argv);
162	}	162	}
163		163
164		164
165	int task_connect(int taskid)	165	int task_connect(int taskid)
166	{	166	{
167	int rc;	167	int rc;
168	unsigned evmask;	168	unsigned evmask;
169		169
170	printf("ipc_connect_kbox(%d)... ", taskid);	170	printf("ipc_connect_kbox(%d)... ", taskid);
171	rc = ipc_connect_kbox(taskid);	171	rc = ipc_connect_kbox(taskid);
172	printf("-> %d\n", rc);	172	printf("-> %d\n", rc);
173	app_phone = rc;	173	app_phone = rc;
174	if (rc < 0) return rc;	174	if (rc < 0) return rc;
175		175
176	printf("udebug_begin()... ");	176	printf("udebug_begin()... ");
177	rc = udebug_begin(app_phone);	177	rc = udebug_begin(app_phone);
178	printf("-> %d\n", rc);	178	printf("-> %d\n", rc);
179	if (rc < 0) return rc;	179	if (rc < 0) return rc;
180		180
181	evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B \| UDEBUG_EM_SYSCALL_E);	181	evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B \| UDEBUG_EM_SYSCALL_E);
182	printf("udebug_set_evmask(0x%x)... ", evmask);	182	printf("udebug_set_evmask(0x%x)... ", evmask);
183	rc = udebug_set_evmask(app_phone, evmask);	183	rc = udebug_set_evmask(app_phone, evmask);
184	printf("-> %d\n", rc);	184	printf("-> %d\n", rc);
185	if (rc < 0) return rc;	185	if (rc < 0) return rc;
186		186
187	return 0;	187	return 0;
188	}	188	}
189		189
190	int get_thread_list(void)	190	int get_thread_list(void)
191	{	191	{
192	int rc;	192	int rc;
193	int tb_copied;	193	int tb_copied;
194	int tb_needed;	194	int tb_needed;
195	int i;	195	int i;
196		196
197	printf("send IPC_M_DEBUG_THREAD_READ message\n");	197	printf("send IPC_M_DEBUG_THREAD_READ message\n");
198	rc = udebug_thread_read(app_phone, (unsigned)thread_hash_buf,	198	rc = udebug_thread_read(app_phone, (unsigned)thread_hash_buf,
199	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);	199	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
200	printf("-> %d\n", rc);	200	printf("-> %d\n", rc);
201	if (rc < 0) return rc;	201	if (rc < 0) return rc;
202		202
203	n_threads = tb_copied / sizeof(unsigned);	203	n_threads = tb_copied / sizeof(unsigned);
204		204
205	printf("thread IDs:");	205	printf("thread IDs:");
206	for (i=0; i<n_threads; i++) {	206	for (i=0; i<n_threads; i++) {
207	printf(" %u", thread_hash_buf[i]);	207	printf(" %u", thread_hash_buf[i]);
208	}	208	}
209	printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));	209	printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));
210		210
211	return 0;	211	return 0;
212	}	212	}
213		213
214	void event_thread_b(unsigned hash)	214	void event_thread_b(unsigned hash)
215	{	215	{
216	async_serialize_start();	216	async_serialize_start();
217	printf("new thread, hash 0x%x\n", hash);	217	printf("new thread, hash 0x%x\n", hash);
218	async_serialize_end();	218	async_serialize_end();
219		219
220	thread_debug_start(hash);	220	thread_debug_start(hash);
221	}	221	}
222		222
223	static unsigned buffer[1024];	223	static unsigned buffer[1024];
224		224
225	static void debug_event(thash_t thash, udebug_event_t ev_type, sysarg_t val0)	225	static void debug_event(thash_t thash, udebug_event_t ev_type, sysarg_t val0)
226	{	226	{
227	switch (ev_type) {	227	switch (ev_type) {
228	case UDEBUG_EVENT_STOP:	228	case UDEBUG_EVENT_STOP:
229	printf("stop event\n");	229	printf("stop event\n");
230	printf("waiting for resume\n");	230	printf("waiting for resume\n");
231	while (paused) {	231	while (paused) {
232	usleep(1000000);	232	usleep(1000000);
233	fibril_yield();	233	fibril_yield();
234	printf(".");	234	printf(".");
235	}	235	}
236	printf("resumed\n");	236	printf("resumed\n");
237	break;	237	break;
238	case UDEBUG_EVENT_THREAD_B:	238	case UDEBUG_EVENT_THREAD_B:
239	event_thread_b(val0);	239	event_thread_b(val0);
240	break;	240	break;
241	case UDEBUG_EVENT_THREAD_E:	241	case UDEBUG_EVENT_THREAD_E:
242	printf("thread 0x%x exited\n", val0);	242	printf("thread 0x%x exited\n", val0);
243	abort_debug = true;	243	abort_debug = true;
244	break;	244	break;
245	case UDEBUG_EVENT_BREAKPOINT:	245	case UDEBUG_EVENT_BREAKPOINT:
246	printf("breakpoint reached\n");	-
247	arch_event_breakpoint(thash);	246	arch_event_breakpoint(thash);
248	break;	247	break;
249	case UDEBUG_EVENT_TRAP:	248	case UDEBUG_EVENT_TRAP:
250	printf("trap event\n");	-
251	arch_event_trap(thash);	249	arch_event_trap(thash);
252	break;	250	break;
253	default:	251	default:
254	printf("unknown event type %d\n", ev_type);	252	printf("unknown event type %d\n", ev_type);
255	break;	253	break;
256	}	254	}
257	}	255	}
258		256
259	void debug_loop(void *thread_hash_arg)	257	void debug_loop(void *thread_hash_arg)
260	{	258	{
261	int rc;	259	int rc;
262	udebug_event_t ev_type;	260	udebug_event_t ev_type;
263	unsigned thread_hash;	261	unsigned thread_hash;
264	unsigned thread_id;	262	unsigned thread_id;
265	unsigned val0, val1;	263	unsigned val0, val1;
266		264
267	thread_hash = (unsigned)thread_hash_arg;	265	thread_hash = (unsigned)thread_hash_arg;
268	thread_id = next_thread_id++;	266	thread_id = next_thread_id++;
269		267
270	printf("debug_loop(%d)\n", thread_id);	268	printf("debug_loop(%d)\n", thread_id);
271		269
272	while (!abort_debug) {	270	while (!abort_debug) {
273		271
274	printf("go\n");	272	printf("go\n");
275	/* Run thread until an event occurs */	273	/* Run thread until an event occurs */
276	rc = udebug_go(app_phone, thread_hash,	274	rc = udebug_go(app_phone, thread_hash,
277	&ev_type, &val0, &val1);	275	&ev_type, &val0, &val1);
278		276
279	if (ev_type == UDEBUG_EVENT_FINISHED) {	277	if (ev_type == UDEBUG_EVENT_FINISHED) {
280	printf("thread %u debugging finished\n", thread_id);	278	printf("thread %u debugging finished\n", thread_id);
281	break;	279	break;
282	}	280	}
283		281
284	if (rc >= 0) debug_event(thread_hash, ev_type, val0);	282	if (rc >= 0) debug_event(thread_hash, ev_type, val0);
285	}	283	}
286		284
287	printf("debug_loop(%d) exiting\n", thread_id);	285	printf("debug_loop(%d) exiting\n", thread_id);
288	}	286	}
289		287
290	void thread_debug_start(unsigned thread_hash)	288	void thread_debug_start(unsigned thread_hash)
291	{	289	{
292	fid_t fid;	290	fid_t fid;
293		291
294	thash = thread_hash;	292	thash = thread_hash;
295		293
296	fid = fibril_create(debug_loop, (void *)thread_hash);	294	fid = fibril_create(debug_loop, (void *)thread_hash);
297	if (fid == 0) {	295	if (fid == 0) {
298	printf("Warning: Failed creating fibril\n");	296	printf("Warning: Failed creating fibril\n");
299	}	297	}
300	fibril_add_ready(fid);	298	fibril_add_ready(fid);
301	}	299	}
302		300
303	void debug_active_task(void)	301	void debug_active_task(void)
304	{	302	{
305	int taskid;	303	int taskid;
306	int i;	304	int i;
307	int rc;	305	int rc;
308	int c;	306	int c;
309		307
310	printf("Breakpoint Debugger\n");	308	printf("Breakpoint Debugger\n");
311	printf("Press 'c' to connect\n");	309	printf("Press 'c' to connect\n");
312	while ((i = getchar()) != 'c')	310	while ((i = getchar()) != 'c')
313	putchar(i);	311	putchar(i);
314		312
315	taskid = 14;	313	taskid = 13;
316	rc = task_connect(taskid);	314	rc = task_connect(taskid);
317	if (rc < 0) {	315	if (rc < 0) {
318	printf("Failed to connect to task %d\n", taskid);	316	printf("Failed to connect to task %d\n", taskid);
319	return;	317	return;
320	}	318	}
321		319
322	printf("Connected to task %d\n", taskid);	320	printf("Connected to task %d\n", taskid);
323		321
324	rc = get_thread_list();	322	rc = get_thread_list();
325	if (rc < 0) {	323	if (rc < 0) {
326	printf("Failed to get thread list (error %d)\n", rc);	324	printf("Failed to get thread list (error %d)\n", rc);
327	return;	325	return;
328	}	326	}
329		327
330	abort_debug = false;	328	abort_debug = false;
331		329
332	for (i = 0; i < n_threads; i++) {	330	for (i = 0; i < n_threads; i++) {
333	thread_debug_start(thread_hash_buf[i]);	331	thread_debug_start(thread_hash_buf[i]);
334	}	332	}
335		333
336	while (!quit) {	334	while (!quit) {
337	printf("> ");	335	printf("> ");
338	read_line(in_buf, INBUF_SIZE);	336	read_line(in_buf, INBUF_SIZE);
339	command_split(in_buf);	337	command_split(in_buf);
340	if (cmd_argc == 0) continue;	338	if (cmd_argc == 0) continue;
341		339
342	command_run();	340	command_run();
343	}	341	}
344		342
345	printf("terminate debugging session...\n");	343	printf("terminate debugging session...\n");
346	abort_debug = true;	344	abort_debug = true;
347	udebug_end(app_phone);	345	udebug_end(app_phone);
348	ipc_hangup(app_phone);	346	ipc_hangup(app_phone);
349		347
350	printf("done\n");	348	printf("done\n");
351	return;	349	return;
352	}	350	}
353		351
354	static void main_init(void)	352	static void main_init(void)
355	{	353	{
356	next_thread_id = 1;	354	next_thread_id = 1;
357	paused = 0;	355	paused = 0;
358	}	356	}
359		357
360	int main(void)	358	int main(void)
361	{	359	{
362	main_init();	360	main_init();
363		361
364	while (1) {	362	while (1) {
365	debug_active_task();	363	debug_active_task();
366	}	364	}
367	}	365	}
368		366
369	/** @}	367	/** @}
370	*/	368	*/
371		369

Subversion Repositories HelenOS

(root)/branches/tracing/uspace/app/debug/main.c @ 3693 – Rev 2923 → 2924