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 "cons.h"
#include "dthread.h"
#include "include/arch.h"
#include "fib_synch.h"
#include "main.h"
 
void thread_debug_start(unsigned thread_hash);
 
#define IN_BUF_SIZE 64
static char in_buf[IN_BUF_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];
 
 
 
 
 
 
 
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;
 
fcv_t go_cv;
 
static 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;
    }
}
 
static 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) {
        cons_printf("Unknown command. Try one of:\n");
        cmd_help(0, NULL);
        return;
    }
 
    if (cmd_argc - 1 != cmd_table[idx_found].argc) {
        cons_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);
}
 
static void thread_stop(void)
{
    cons_printf("[t] stopped\n");
    fcv_wait(&go_cv);
    cons_printf("[t] go\n");
}
 
/*
 * Called by a fibril (from arch code) when a breakpoint is hit.
 */
void breakpoint_hit(void)
{
    cons_printf("breakpoint hit\n");
    thread_stop();
}
 
static int task_connect(int taskid)
{
    int rc;
    unsigned evmask;
 
    cons_printf("ipc_connect_kbox(%d)... ", taskid);
    rc = ipc_connect_kbox(taskid);
    cons_printf("-> %d\n", rc);
    app_phone = rc;
    if (rc < 0) return rc;
 
    cons_printf("udebug_begin()... ");
    rc = udebug_begin(app_phone);
    cons_printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B | UDEBUG_EM_SYSCALL_E);
    cons_printf("udebug_set_evmask(0x%x)... ", evmask);
    rc = udebug_set_evmask(app_phone, evmask);
    cons_printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    return 0;
}
 
static int get_thread_list(void)
{
    int rc;
    int tb_copied;
    int tb_needed;
    int i;
    int n;
 
    cons_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);
    cons_printf("-> %d\n", rc);
    if (rc < 0) return rc;
 
    n = tb_copied / sizeof(unsigned);
 
    cons_printf("thread IDs:");
    for (i=0; i<n; i++) {
        cons_printf(" %u", thread_hash_buf[i]);
    }
    cons_printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));
 
    return n;
}
 
void event_thread_b(unsigned hash)
{
    async_serialize_start();
    cons_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:
        cons_printf("stop event\n");
        cons_printf("waiting for resume\n");
        while (paused) {
            usleep(1000000);
            fibril_yield();
            cons_printf(".");
        }
        cons_printf("resumed\n");
        break;
    case UDEBUG_EVENT_THREAD_B:
        event_thread_b(val0);
        break;
    case UDEBUG_EVENT_THREAD_E:
        cons_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:
        cons_printf("unknown event type %d\n", ev_type);
        break;
    }
}
 
void debug_loop(void *dt_arg)
{
    int rc;
    udebug_event_t ev_type;
    unsigned thread_buf_idx;
 
 
    unsigned val0, val1;
    dthread_t *dt;
 
 
 
 
    dt = (dthread_t *)dt_arg;
 
    cons_printf("debug_loop(%d)\n", dt->id);
 
    while (!abort_debug) {
 
        /* Run thread until an event occurs */
        rc = udebug_go(app_phone, dt->hash, &ev_type, &val0, &val1);
 
 
        if (ev_type == UDEBUG_EVENT_FINISHED) {
            cons_printf("thread %u debugging finished\n", dt->id);
            break;
        }
        if (rc >= 0) debug_event(thash, ev_type, val0);
    }
 
    cons_printf("debug_loop(%d) exiting\n", dt->id);
}
 
void thread_debug_start(unsigned thash)
{
    fid_t fid;
    dthread_t *dt;
 
    dt = dthread_new(thash);
 
 
    fid = fibril_create(debug_loop, (void *)dt);
    if (fid == 0) {
        cons_printf("Warning: Failed creating fibril\n");
    }
    fibril_add_ready(fid);
}
 
void debug_active_task(void)
{
    int taskid;
    int i;
    int rc;
    int c;
 
    cons_printf("Breakpoint Debugger\n");
    cons_printf("Press 'c' to connect\n");
    while ((i = getchar()) != 'c')
        putchar(i);
 
    taskid = 14;
    rc = task_connect(taskid);
    if (rc < 0) {
        cons_printf("Failed to connect to task %d\n", taskid);
        return;
    }
 
    cons_printf("Connected to task %d\n", taskid);
 
    rc = get_thread_list();
    if (rc < 0) {
        cons_printf("Failed to get thread list (error %d)\n", rc);
        return;
    }
 
    abort_debug = false;
 
    for (i = 0; i < rc; i++) {
        thread_debug_start(thread_hash_buf[i]);
    }
 
    while (!quit) {
        cons_read_line(in_buf, IN_BUF_SIZE);
        command_split(in_buf);
        if (cmd_argc == 0) continue;
 
        command_run();
    }
 
    cons_printf("terminate debugging session...\n");
    abort_debug = true;
    udebug_end(app_phone);
    ipc_hangup(app_phone);
 
    cons_printf("done\n");
    return;
}
 
static void main_init(void)
{
    next_thread_id = 1;
    paused = 0;
   
    list_initialize(&dthreads);
    cwt = NULL;
 
    fcv_init(&go_cv);
}
 
int main(void)
{
    main_init();
 
    while (1) {
        debug_active_task();
    }
}
 
/** @}
 */
 

Rev 2937	Rev 2938
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 "cons.h"	47	#include "cons.h"
-		48	#include "dthread.h"
48	#include "include/arch.h"	49	#include "include/arch.h"
49	#include "fib_synch.h"	50	#include "fib_synch.h"
50	#include "main.h"	51	#include "main.h"
51		52
52	void thread_debug_start(unsigned thread_hash);	53	void thread_debug_start(unsigned thread_hash);
53		54
54	#define IN_BUF_SIZE 64	55	#define IN_BUF_SIZE 64
55	static char in_buf[IN_BUF_SIZE];	56	static char in_buf[IN_BUF_SIZE];
56		57
57	#define MAX_ARGC 10	58	#define MAX_ARGC 10
58	int cmd_argc;	59	int cmd_argc;
59	char cmd_argv[MAX_ARGC + 1]; / need one spare field for cmd_split() */	60	char cmd_argv[MAX_ARGC + 1]; / need one spare field for cmd_split() */
60		61
61	#define THBUF_SIZE 64	62	#define THBUF_SIZE 64
62	thash_t thread_hash_buf[THBUF_SIZE];	63	thash_t thread_hash_buf[THBUF_SIZE];
63		64
64	#define MAX_THREADS 64	-
65	thash_t thread_hash[MAX_THREADS];	-
66	int thread_id[MAX_THREADS];	-
67	unsigned n_threads;	-
68	int cwt; /* index into thread_hash/thread_id */	-
69		-
70	int next_thread_id;	65	int next_thread_id;
71		66
72	int app_phone;	67	int app_phone;
73	volatile bool abort_debug;	68	volatile bool abort_debug;
74		69
75	thash_t thash;	70	thash_t thash;
76	volatile int paused;	71	volatile int paused;
77		72
78	breakpoint_t brk_list[MAX_BRKPTS];	73	breakpoint_t brk_list[MAX_BRKPTS];
79	int lifted_brkpt;	74	int lifted_brkpt;
80		75
81	fcv_t go_cv;	76	fcv_t go_cv;
82		77
83	void command_split(char *cmd_str)	78	static void command_split(char *cmd_str)
84	{	79	{
85	char *p = cmd_str;	80	char *p = cmd_str;
86		81
87	if (*p == '\0') {	82	if (*p == '\0') {
88	cmd_argc = 0;	83	cmd_argc = 0;
89	return;	84	return;
90	}	85	}
91		86
92	cmd_argc = 1;	87	cmd_argc = 1;
93	cmd_argv[0] = p;	88	cmd_argv[0] = p;
94		89
95	while (*p != '\0') {	90	while (*p != '\0') {
96	if (*p == ' ') {	91	if (*p == ' ') {
97	cmd_argv[cmd_argc++] = p + 1;	92	cmd_argv[cmd_argc++] = p + 1;
98	*p = '\0';	93	*p = '\0';
99	}	94	}
100	++p;	95	++p;
101	}	96	}
102	}	97	}
103		98
104	void command_run(void)	99	static void command_run(void)
105	{	100	{
106	int i;	101	int i;
107	int cmp_len;	102	int cmp_len;
108	int len;	103	int len;
109		104
110	int idx_found;	105	int idx_found;
111	int num_found;	106	int num_found;
112		107
113	len = strlen(cmd_argv[0]);	108	len = strlen(cmd_argv[0]);
114	cmp_len = 1;	109	cmp_len = 1;
115		110
116	while (cmp_len <= len + 1) {	111	while (cmp_len <= len + 1) {
117		112
118	num_found = 0;	113	num_found = 0;
119	i = 0;	114	i = 0;
120	while (cmd_table[i].name != NULL) {	115	while (cmd_table[i].name != NULL) {
121	if (strncmp(cmd_table[i].name, cmd_argv[0], cmp_len) == 0) {	116	if (strncmp(cmd_table[i].name, cmd_argv[0], cmp_len) == 0) {
122	idx_found = i;	117	idx_found = i;
123	++num_found;	118	++num_found;
124	}	119	}
125	++i;	120	++i;
126	}	121	}
127		122
128	if (num_found < 2) break;	123	if (num_found < 2) break;
129		124
130	--cmp_len;	125	--cmp_len;
131	}	126	}
132		127
133	if (num_found == 0) {	128	if (num_found == 0) {
134	cons_printf("Unknown command. Try one of:\n");	129	cons_printf("Unknown command. Try one of:\n");
135	cmd_help(0, NULL);	130	cmd_help(0, NULL);
136	return;	131	return;
137	}	132	}
138		133
139	if (cmd_argc - 1 != cmd_table[idx_found].argc) {	134	if (cmd_argc - 1 != cmd_table[idx_found].argc) {
140	cons_printf("Command '%s' expects %d arguments\n",	135	cons_printf("Command '%s' expects %d arguments\n",
141	cmd_table[idx_found].name, cmd_table[idx_found].argc);	136	cmd_table[idx_found].name, cmd_table[idx_found].argc);
142	return;	137	return;
143	}	138	}
144		139
145	(*cmd_table[idx_found].proc)(cmd_argc, cmd_argv);	140	(*cmd_table[idx_found].proc)(cmd_argc, cmd_argv);
146	}	141	}
147		142
148	void thread_stop(void)	143	static void thread_stop(void)
149	{	144	{
150	cons_printf("[t] stopped\n");	145	cons_printf("[t] stopped\n");
151	fcv_wait(&go_cv);	146	fcv_wait(&go_cv);
152	cons_printf("[t] go\n");	147	cons_printf("[t] go\n");
153	}	148	}
154		149
155	/*	150	/*
156	* Called by a fibril (from arch code) when a breakpoint is hit.	151	* Called by a fibril (from arch code) when a breakpoint is hit.
157	*/	152	*/
158	void breakpoint_hit(void)	153	void breakpoint_hit(void)
159	{	154	{
160	cons_printf("breakpoint hit\n");	155	cons_printf("breakpoint hit\n");
161	thread_stop();	156	thread_stop();
162	}	157	}
163		158
164	int task_connect(int taskid)	159	static int task_connect(int taskid)
165	{	160	{
166	int rc;	161	int rc;
167	unsigned evmask;	162	unsigned evmask;
168		163
169	cons_printf("ipc_connect_kbox(%d)... ", taskid);	164	cons_printf("ipc_connect_kbox(%d)... ", taskid);
170	rc = ipc_connect_kbox(taskid);	165	rc = ipc_connect_kbox(taskid);
171	cons_printf("-> %d\n", rc);	166	cons_printf("-> %d\n", rc);
172	app_phone = rc;	167	app_phone = rc;
173	if (rc < 0) return rc;	168	if (rc < 0) return rc;
174		169
175	cons_printf("udebug_begin()... ");	170	cons_printf("udebug_begin()... ");
176	rc = udebug_begin(app_phone);	171	rc = udebug_begin(app_phone);
177	cons_printf("-> %d\n", rc);	172	cons_printf("-> %d\n", rc);
178	if (rc < 0) return rc;	173	if (rc < 0) return rc;
179		174
180	evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B \| UDEBUG_EM_SYSCALL_E);	175	evmask = UDEBUG_EM_ALL & ~(UDEBUG_EM_SYSCALL_B \| UDEBUG_EM_SYSCALL_E);
181	cons_printf("udebug_set_evmask(0x%x)... ", evmask);	176	cons_printf("udebug_set_evmask(0x%x)... ", evmask);
182	rc = udebug_set_evmask(app_phone, evmask);	177	rc = udebug_set_evmask(app_phone, evmask);
183	cons_printf("-> %d\n", rc);	178	cons_printf("-> %d\n", rc);
184	if (rc < 0) return rc;	179	if (rc < 0) return rc;
185		180
186	return 0;	181	return 0;
187	}	182	}
188		183
189	int get_thread_list(void)	184	static int get_thread_list(void)
190	{	185	{
191	int rc;	186	int rc;
192	int tb_copied;	187	int tb_copied;
193	int tb_needed;	188	int tb_needed;
194	int i;	189	int i;
195	int n;	190	int n;
196		191
197	cons_printf("send IPC_M_DEBUG_THREAD_READ message\n");	192	cons_printf("send IPC_M_DEBUG_THREAD_READ message\n");
198	rc = udebug_thread_read(app_phone, (unsigned)thread_hash_buf,	193	rc = udebug_thread_read(app_phone, (unsigned)thread_hash_buf,
199	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);	194	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
200	cons_printf("-> %d\n", rc);	195	cons_printf("-> %d\n", rc);
201	if (rc < 0) return rc;	196	if (rc < 0) return rc;
202		197
203	n = tb_copied / sizeof(unsigned);	198	n = tb_copied / sizeof(unsigned);
204		199
205	cons_printf("thread IDs:");	200	cons_printf("thread IDs:");
206	for (i=0; i<n; i++) {	201	for (i=0; i<n; i++) {
207	cons_printf(" %u", thread_hash_buf[i]);	202	cons_printf(" %u", thread_hash_buf[i]);
208	}	203	}
209	cons_printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));	204	cons_printf("\ntotal of %u threads\n", tb_needed/sizeof(unsigned));
210		205
211	return n;	206	return n;
212	}	207	}
213		208
214	void event_thread_b(unsigned hash)	209	void event_thread_b(unsigned hash)
215	{	210	{
216	async_serialize_start();	211	async_serialize_start();
217	cons_printf("new thread, hash 0x%x\n", hash);	212	cons_printf("new thread, hash 0x%x\n", hash);
218	async_serialize_end();	213	async_serialize_end();
219		214
220	thread_debug_start(hash);	215	thread_debug_start(hash);
221	}	216	}
222		217
223	static unsigned buffer[1024];	218	static unsigned buffer[1024];
224		219
225	static void debug_event(thash_t thash, udebug_event_t ev_type, sysarg_t val0)	220	static void debug_event(thash_t thash, udebug_event_t ev_type, sysarg_t val0)
226	{	221	{
227	switch (ev_type) {	222	switch (ev_type) {
228	case UDEBUG_EVENT_STOP:	223	case UDEBUG_EVENT_STOP:
229	cons_printf("stop event\n");	224	cons_printf("stop event\n");
230	cons_printf("waiting for resume\n");	225	cons_printf("waiting for resume\n");
231	while (paused) {	226	while (paused) {
232	usleep(1000000);	227	usleep(1000000);
233	fibril_yield();	228	fibril_yield();
234	cons_printf(".");	229	cons_printf(".");
235	}	230	}
236	cons_printf("resumed\n");	231	cons_printf("resumed\n");
237	break;	232	break;
238	case UDEBUG_EVENT_THREAD_B:	233	case UDEBUG_EVENT_THREAD_B:
239	event_thread_b(val0);	234	event_thread_b(val0);
240	break;	235	break;
241	case UDEBUG_EVENT_THREAD_E:	236	case UDEBUG_EVENT_THREAD_E:
242	cons_printf("thread 0x%x exited\n", val0);	237	cons_printf("thread 0x%x exited\n", val0);
243	abort_debug = true;	238	abort_debug = true;
244	break;	239	break;
245	case UDEBUG_EVENT_BREAKPOINT:	240	case UDEBUG_EVENT_BREAKPOINT:
246	arch_event_breakpoint(thash);	241	arch_event_breakpoint(thash);
247	break;	242	break;
248	case UDEBUG_EVENT_TRAP:	243	case UDEBUG_EVENT_TRAP:
249	arch_event_trap(thash);	244	arch_event_trap(thash);
250	break;	245	break;
251	default:	246	default:
252	cons_printf("unknown event type %d\n", ev_type);	247	cons_printf("unknown event type %d\n", ev_type);
253	break;	248	break;
254	}	249	}
255	}	250	}
256		251
257	void debug_loop(void *thread_buf_idx_arg)	252	void debug_loop(void *dt_arg)
258	{	253	{
259	int rc;	254	int rc;
260	udebug_event_t ev_type;	255	udebug_event_t ev_type;
261	unsigned thread_buf_idx;	256	unsigned thread_buf_idx;
262	thash_t thash;	-
263	int tid;	-
264	unsigned val0, val1;	257	unsigned val0, val1;
-		258	dthread_t *dt;
265		259
266	thread_buf_idx = (unsigned)thread_buf_idx_arg;	-
267		-
268	thash = thread_hash[thread_buf_idx];	-
269	tid = thread_id[thread_buf_idx];	260	dt = (dthread_t *)dt_arg;
270		261
271	cons_printf("debug_loop(%d)\n", tid);	262	cons_printf("debug_loop(%d)\n", dt->id);
272		263
273	while (!abort_debug) {	264	while (!abort_debug) {
274		265
275	/* Run thread until an event occurs */	266	/* Run thread until an event occurs */
276	rc = udebug_go(app_phone, thash,	267	rc = udebug_go(app_phone, dt->hash, &ev_type, &val0, &val1);
277	&ev_type, &val0, &val1);	-
278		268
279	if (ev_type == UDEBUG_EVENT_FINISHED) {	269	if (ev_type == UDEBUG_EVENT_FINISHED) {
280	cons_printf("thread %u debugging finished\n", tid);	270	cons_printf("thread %u debugging finished\n", dt->id);
281	break;	271	break;
282	}	272	}
283	if (rc >= 0) debug_event(thash, ev_type, val0);	273	if (rc >= 0) debug_event(thash, ev_type, val0);
284	}	274	}
285		275
286	cons_printf("debug_loop(%d) exiting\n", thread_id);	276	cons_printf("debug_loop(%d) exiting\n", dt->id);
287	}	277	}
288		278
289	void thread_debug_start(unsigned thash)	279	void thread_debug_start(unsigned thash)
290	{	280	{
291	fid_t fid;	281	fid_t fid;
-		282	dthread_t *dt;
292		283
293	thread_hash[n_threads] = thash;	284	dt = dthread_new(thash);
294	thread_id[n_threads] = next_thread_id++;	-
295		285
296	fid = fibril_create(debug_loop, (void *)n_threads++);	286	fid = fibril_create(debug_loop, (void *)dt);
297	if (fid == 0) {	287	if (fid == 0) {
298	cons_printf("Warning: Failed creating fibril\n");	288	cons_printf("Warning: Failed creating fibril\n");
299	}	289	}
300	fibril_add_ready(fid);	290	fibril_add_ready(fid);
301	}	291	}
302		292
303	void debug_active_task(void)	293	void debug_active_task(void)
304	{	294	{
305	int taskid;	295	int taskid;
306	int i;	296	int i;
307	int rc;	297	int rc;
308	int c;	298	int c;
309		299
310	cons_printf("Breakpoint Debugger\n");	300	cons_printf("Breakpoint Debugger\n");
311	cons_printf("Press 'c' to connect\n");	301	cons_printf("Press 'c' to connect\n");
312	while ((i = getchar()) != 'c')	302	while ((i = getchar()) != 'c')
313	putchar(i);	303	putchar(i);
314		304
315	taskid = 14;	305	taskid = 14;
316	rc = task_connect(taskid);	306	rc = task_connect(taskid);
317	if (rc < 0) {	307	if (rc < 0) {
318	cons_printf("Failed to connect to task %d\n", taskid);	308	cons_printf("Failed to connect to task %d\n", taskid);
319	return;	309	return;
320	}	310	}
321		311
322	cons_printf("Connected to task %d\n", taskid);	312	cons_printf("Connected to task %d\n", taskid);
323		313
324	rc = get_thread_list();	314	rc = get_thread_list();
325	if (rc < 0) {	315	if (rc < 0) {
326	cons_printf("Failed to get thread list (error %d)\n", rc);	316	cons_printf("Failed to get thread list (error %d)\n", rc);
327	return;	317	return;
328	}	318	}
329		319
330	abort_debug = false;	320	abort_debug = false;
331		321
332	for (i = 0; i < rc; i++) {	322	for (i = 0; i < rc; i++) {
333	thread_debug_start(thread_hash_buf[i]);	323	thread_debug_start(thread_hash_buf[i]);
334	}	324	}
335		325
336	while (!quit) {	326	while (!quit) {
337	cons_read_line(in_buf, IN_BUF_SIZE);	327	cons_read_line(in_buf, IN_BUF_SIZE);
338	command_split(in_buf);	328	command_split(in_buf);
339	if (cmd_argc == 0) continue;	329	if (cmd_argc == 0) continue;
340		330
341	command_run();	331	command_run();
342	}	332	}
343		333
344	cons_printf("terminate debugging session...\n");	334	cons_printf("terminate debugging session...\n");
345	abort_debug = true;	335	abort_debug = true;
346	udebug_end(app_phone);	336	udebug_end(app_phone);
347	ipc_hangup(app_phone);	337	ipc_hangup(app_phone);
348		338
349	cons_printf("done\n");	339	cons_printf("done\n");
350	return;	340	return;
351	}	341	}
352		342
353	static void main_init(void)	343	static void main_init(void)
354	{	344	{
355	next_thread_id = 1;	345	next_thread_id = 1;
356	paused = 0;	346	paused = 0;
-		347
-		348	list_initialize(&dthreads);
-		349	cwt = NULL;
357		350
358	fcv_init(&go_cv);	351	fcv_init(&go_cv);
359	}	352	}
360		353
361	int main(void)	354	int main(void)
362	{	355	{
363	main_init();	356	main_init();
364		357
365	while (1) {	358	while (1) {
366	debug_active_task();	359	debug_active_task();
367	}	360	}
368	}	361	}
369		362
370	/** @}	363	/** @}
371	*/	364	*/
372		365

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(root)/branches/tracing/uspace/app/debug/main.c @ 3000 – Rev 2937 → 2938