WebSVN – HelenOS – Diff – /trunk/uspace/app/trace/trace.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 trace
 * @{
 */
/** @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 <task.h>
 
// Temporary: service and method names
#include "proto.h"
#include <ipc/services.h>
#include "../../srv/vfs/vfs.h"
#include "../../srv/console/console.h"
 
#include "syscalls.h"
#include "ipcp.h"
#include "errors.h"
#include "trace.h"
 
#define THBUF_SIZE 64
uintptr_t thread_hash_buf[THBUF_SIZE];
int n_threads;
 
int next_thread_id;
 
int phoneid;
int abort_trace;
 
uintptr_t thash;
volatile int paused;
 
void thread_trace_start(uintptr_t thread_hash);
 
static proto_t *proto_console;
static task_id_t task_id;
 
/** Combination of events/data to print. */
display_mask_t display_mask;
 
static int task_connect(task_id_t task_id)
{
    int rc;
 
    rc = ipc_connect_kbox(task_id);
 
    if (rc == ENOTSUP) {
        printf("You do not have userspace debugging support "
            "compiled in the kernel.\n");
        printf("Compile kernel with 'Support for userspace debuggers' "
            "(CONFIG_UDEBUG) enabled.\n");
        return rc;
    }
 
    if (rc < 0) {
        printf("Error connecting\n");
        printf("ipc_connect_task(%lld) -> %d ", task_id, rc);
        return rc;
    }
 
    phoneid = rc;
 
    rc = udebug_begin(phoneid);
    if (rc < 0) {
        printf("udebug_begin() -> %d\n", rc);
        return rc;
    }
 
    rc = udebug_set_evmask(phoneid, UDEBUG_EM_ALL);
    if (rc < 0) {
        printf("udebug_set_evmask(0x%x) -> %d\n ", UDEBUG_EM_ALL, rc);
        return rc;
    }
 
    return 0;
}
 
static int get_thread_list(void)
{
    int rc;
    size_t tb_copied;
    size_t tb_needed;
    int i;
 
    rc = udebug_thread_read(phoneid, thread_hash_buf,
        THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
    if (rc < 0) {
        printf("udebug_thread_read() -> %d\n", rc);
        return rc;
    }
 
    n_threads = tb_copied / sizeof(uintptr_t);
 
    printf("Threads:");
    for (i = 0; i < n_threads; i++) {
        printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);
    }
    printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));
 
    return 0;
}
 
void val_print(sysarg_t val, val_type_t v_type)
{
    switch (v_type) {
    case V_VOID:
        printf("<void>");
        break;
 
    case V_INTEGER:
        printf("%ld", val);
        break;
 
    case V_HASH:
        printf("0x%08lx", val);
        break;
 
    case V_ERRNO:
        if (val >= -15 && val <= 0) {
            printf("%ld %s (%s)", val,
                err_desc[-val].name,
                err_desc[-val].desc);
        } else {
            printf("%ld", val);
        }
        break;
    case V_INT_ERRNO:
        if (val >= -15 && val < 0) {
            printf("%ld %s (%s)", val,
                err_desc[-val].name,
                err_desc[-val].desc);
        } else {
            printf("%ld", val);
        }
        break;
 
    case V_CHAR:
        if (val >= 0x20 && val < 0x7f) {
            printf("'%c'", val);
        } else {
            switch (val) {
            case '\a': printf("'\\a'"); break;
            case '\b': printf("'\\b'"); break;
            case '\n': printf("'\\n'"); break;
            case '\r': printf("'\\r'"); break;
            case '\t': printf("'\\t'"); break;
            case '\\': printf("'\\\\'"); break;
            default: printf("'\\x%02lX'", val); break;
            }
        }
        break;
    }
}
 
 
static void print_sc_retval(sysarg_t retval, val_type_t val_type)
{
    printf(" -> ");
    val_print(retval, val_type);
    putchar('\n');
}
 
static void print_sc_args(sysarg_t *sc_args, int n)
{
    int i;
 
    putchar('(');
    if (n > 0) printf("%ld", sc_args[0]);
    for (i = 1; i < n; i++) {
        printf(", %ld", sc_args[i]);
    }
    putchar(')');
}
 
static void sc_ipc_call_async_fast(sysarg_t *sc_args, sysarg_t sc_rc)
{
    ipc_call_t call;
    ipcarg_t phoneid;
   
    if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
        return;
 
    phoneid = sc_args[0];
 
    IPC_SET_METHOD(call, sc_args[1]);
    IPC_SET_ARG1(call, sc_args[2]);
    IPC_SET_ARG2(call, sc_args[3]);
    IPC_SET_ARG3(call, sc_args[4]);
    IPC_SET_ARG4(call, sc_args[5]);
    IPC_SET_ARG5(call, 0);
 
    ipcp_call_out(phoneid, &call, sc_rc);
}
 
static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)
{
    ipc_call_t call;
    int rc;
 
    if (sc_rc == IPC_CALLRET_FATAL || sc_rc == IPC_CALLRET_TEMPORARY)
        return;
 
    memset(&call, 0, sizeof(call));
    rc = udebug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args));
 
    if (rc >= 0) {
        ipcp_call_out(sc_args[0], &call, sc_rc);
    }
}
 
static void sc_ipc_call_sync_fast(sysarg_t *sc_args)
{
    ipc_call_t question, reply;
    int rc;
    int phoneidx;
 
//  printf("sc_ipc_call_sync_fast()\n");
    phoneidx = sc_args[0];
 
    IPC_SET_METHOD(question, sc_args[1]);
    IPC_SET_ARG1(question, sc_args[2]);
    IPC_SET_ARG2(question, sc_args[3]);
    IPC_SET_ARG3(question, sc_args[4]);
    IPC_SET_ARG4(question, 0);
    IPC_SET_ARG5(question, 0);
 
//  printf("memset\n");
    memset(&reply, 0, sizeof(reply));
//  printf("udebug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n",
//      phoneid, &reply.args, sc_args[5], sizeof(reply.args));
    rc = udebug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args));
//  printf("dmr->%d\n", rc);
    if (rc < 0) return;
 
//  printf("call ipc_call_sync\n");
    ipcp_call_sync(phoneidx, &question, &reply);
}
 
static void sc_ipc_call_sync_slow(sysarg_t *sc_args)
{
    ipc_call_t question, reply;
    int rc;
 
    memset(&question, 0, sizeof(question));
    rc = udebug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args));
    printf("dmr->%d\n", rc);
    if (rc < 0) return;
 
    memset(&reply, 0, sizeof(reply));
    rc = udebug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args));
    printf("dmr->%d\n", rc);
    if (rc < 0) return;
 
    ipcp_call_sync(sc_args[0], &question, &reply);
}
 
static void sc_ipc_wait(sysarg_t *sc_args, int sc_rc)
{
    ipc_call_t call;
    int rc;
 
    if (sc_rc == 0) return;
 
    memset(&call, 0, sizeof(call));
    rc = udebug_mem_read(phoneid, &call, sc_args[0], sizeof(call));
//  printf("udebug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n",
//      phoneid, (int)&call, sc_args[0], sizeof(call), rc);
 
    if (rc >= 0) {
        ipcp_call_in(&call, sc_rc);
    }
}
 
static void event_syscall_b(unsigned thread_id, uintptr_t thread_hash,
    unsigned sc_id, sysarg_t sc_rc)
{
    sysarg_t sc_args[6];
    int rc;
 
    /* Read syscall arguments */
    rc = udebug_args_read(phoneid, thread_hash, sc_args);
 
    async_serialize_start();
 
//  printf("[%d] ", thread_id);
 
    if (rc < 0) {
        printf("error\n");
        async_serialize_end();
        return;
    }
 
    if ((display_mask & DM_SYSCALL) != 0) {
        /* Print syscall name and arguments */
        printf("%s", syscall_desc[sc_id].name);
        print_sc_args(sc_args, syscall_desc[sc_id].n_args);
    }
 
    async_serialize_end();
}
 
static void event_syscall_e(unsigned thread_id, uintptr_t thread_hash,
    unsigned sc_id, sysarg_t sc_rc)
{
    sysarg_t sc_args[6];
    int rv_type;
    int rc;
 
    /* Read syscall arguments */
    rc = udebug_args_read(phoneid, thread_hash, sc_args);
 
    async_serialize_start();
 
//  printf("[%d] ", thread_id);
 
    if (rc < 0) {
        printf("error\n");
        async_serialize_end();
        return;
    }
 
    if ((display_mask & DM_SYSCALL) != 0) {
        /* Print syscall return value */
        rv_type = syscall_desc[sc_id].rv_type;
        print_sc_retval(sc_rc, rv_type);
    }
 
    switch (sc_id) {
    case SYS_IPC_CALL_ASYNC_FAST:
        sc_ipc_call_async_fast(sc_args, sc_rc);
        break;
    case SYS_IPC_CALL_ASYNC_SLOW:
        sc_ipc_call_async_slow(sc_args, sc_rc);
        break;
    case SYS_IPC_CALL_SYNC_FAST:
        sc_ipc_call_sync_fast(sc_args);
        break;
    case SYS_IPC_CALL_SYNC_SLOW:
        sc_ipc_call_sync_slow(sc_args);
        break;
    case SYS_IPC_WAIT:
        sc_ipc_wait(sc_args, sc_rc);
        break;
    default:
        break;
    }
 
    async_serialize_end();
}
 
static void event_thread_b(uintptr_t hash)
{
    async_serialize_start();
    printf("New thread, hash 0x%lx\n", hash);
    async_serialize_end();
 
    thread_trace_start(hash);
}
 
static int trace_loop(void *thread_hash_arg)
{
    int rc;
    unsigned ev_type;
    uintptr_t thread_hash;
    unsigned thread_id;
    sysarg_t val0, val1;
 
    thread_hash = (uintptr_t)thread_hash_arg;
    thread_id = next_thread_id++;
 
    printf("Start tracing thread [%d] (hash 0x%lx)\n", thread_id, thread_hash);
 
    while (!abort_trace) {
 
        /* Run thread until an event occurs */
        rc = udebug_go(phoneid, thread_hash,
            &ev_type, &val0, &val1);
 
//      printf("rc = %d, ev_type=%d\n", rc, ev_type);
        if (ev_type == UDEBUG_EVENT_FINISHED) {
            /* Done tracing this thread */
            break;
        }
 
        if (rc >= 0) {
            switch (ev_type) {
            case UDEBUG_EVENT_SYSCALL_B:
                event_syscall_b(thread_id, thread_hash, val0, (int)val1);
                break;
            case UDEBUG_EVENT_SYSCALL_E:
                event_syscall_e(thread_id, thread_hash, val0, (int)val1);
                break;
            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%lx exited\n", val0);
                abort_trace = 1;
                break;
            default:
                printf("Unknown event type %d\n", ev_type);
                break;
            }
        }
 
    }
 
    printf("Finished tracing thread [%d]\n", thread_id);
    return 0;
}
 
void thread_trace_start(uintptr_t thread_hash)
{
    fid_t fid;
 
    thash = thread_hash;
 
    fid = fibril_create(trace_loop, (void *)thread_hash);
    if (fid == 0) {
        printf("Warning: Failed creating fibril\n");
    }
    fibril_add_ready(fid);
}
 
static void trace_active_task(task_id_t task_id)
{
    int i;
    int rc;
    int c;
 
    rc = task_connect(task_id);
    if (rc < 0) {
        printf("Failed to connect to task %lld\n", task_id);
        return;
    }
 
    printf("Connected to task %lld\n", task_id);
 
    ipcp_init();
 
    /*
     * User apps now typically have console on phone 3.
     * (Phones 1 and 2 are used by the loader).
     */
    ipcp_connection_set(3, 0, proto_console);
 
    rc = get_thread_list();
    if (rc < 0) {
        printf("Failed to get thread list (error %d)\n", rc);
        return;
    }
 
    abort_trace = 0;
 
    for (i = 0; i < n_threads; i++) {
        thread_trace_start(thread_hash_buf[i]);
    }
 
    while(1) {
        c = getchar();
        if (c == 'q') break;
        if (c == 'p') {
            paused = 1;
            rc = udebug_stop(phoneid, thash);
            printf("stop -> %d\n", rc);
        }
        if (c == 'r') {
            paused = 0;
        }
    }
 
    printf("\nTerminate debugging session...\n");
    abort_trace = 1;
    udebug_end(phoneid);
    ipc_hangup(phoneid);
 
    ipcp_cleanup();
 
    printf("Done\n");
    return;
}
 
static void main_init(void)
{
    proto_t *p;
    oper_t *o;
 
    val_type_t arg_def[OPER_MAX_ARGS] = {
        V_INTEGER,
        V_INTEGER,
        V_INTEGER,
        V_INTEGER,
        V_INTEGER      
    };
 
    val_type_t resp_def[OPER_MAX_ARGS] = {
        V_INTEGER,
        V_INTEGER,
        V_INTEGER,
        V_INTEGER,
        V_INTEGER      
    };
 
    next_thread_id = 1;
    paused = 0;
 
    proto_init();
 
    p = proto_new("vfs");
    o = oper_new("read", 1, arg_def, V_ERRNO, 1, resp_def);
    proto_add_oper(p, VFS_READ, o);
    o = oper_new("write", 1, arg_def, V_ERRNO, 1, resp_def);
    proto_add_oper(p, VFS_WRITE, o);
    o = oper_new("truncate", 5, arg_def, V_ERRNO, 0, resp_def);
    proto_add_oper(p, VFS_TRUNCATE, o);
    o = oper_new("mount", 2, arg_def, V_ERRNO, 0, resp_def);
    proto_add_oper(p, VFS_MOUNT, o);
/*  o = oper_new("unmount", 0, arg_def);
    proto_add_oper(p, VFS_UNMOUNT, o);*/
 
    proto_register(SERVICE_VFS, p);
 
    p = proto_new("console");
    resp_def[0] = V_CHAR;
    o = oper_new("getchar", 0, arg_def, V_INTEGER, 2, resp_def);
    proto_add_oper(p, CONSOLE_GETCHAR, o);
 
    arg_def[0] = V_CHAR;
    o = oper_new("putchar", 1, arg_def, V_VOID, 0, resp_def);
    proto_add_oper(p, CONSOLE_PUTCHAR, o);
    o = oper_new("clear", 0, arg_def, V_VOID, 0, resp_def);
    proto_add_oper(p, CONSOLE_CLEAR, o);
 
    arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
    o = oper_new("goto", 2, arg_def, V_VOID, 0, resp_def);
    proto_add_oper(p, CONSOLE_GOTO, o);
 
    resp_def[0] = V_INTEGER; resp_def[1] = V_INTEGER;
    o = oper_new("getsize", 0, arg_def, V_INTEGER, 2, resp_def);
    proto_add_oper(p, CONSOLE_GETSIZE, o);
    o = oper_new("flush", 0, arg_def, V_VOID, 0, resp_def);
    proto_add_oper(p, CONSOLE_FLUSH, o);
 
    arg_def[0] = V_INTEGER; arg_def[1] = V_INTEGER;
    o = oper_new("set_style", 2, arg_def, V_INTEGER, 0, resp_def);
    proto_add_oper(p, CONSOLE_SET_STYLE, o);
    o = oper_new("cursor_visibility", 1, arg_def, V_VOID, 0, resp_def);
    proto_add_oper(p, CONSOLE_CURSOR_VISIBILITY, o);
 
    proto_console = p;
    proto_register(SERVICE_CONSOLE, p);
}
 
static void print_syntax()
{
    printf("Syntax:\n");
    printf("\ttrace [+<events>] <executable> [<arg1> [...]]\n");
    printf("or\ttrace [+<events>] -t <task_id>\n");
    printf("Events: (default is +tp)\n");
    printf("\n");
    printf("\tt ... Thread creation and termination\n");
    printf("\ts ... System calls\n");
    printf("\ti ... Low-level IPC\n");
    printf("\tp ... Protocol level\n");
    printf("\n");
    printf("Examples:\n");
    printf("\ttrace +s /app/tetris\n");
    printf("\ttrace +tsip -t 12\n");
}
 
static display_mask_t parse_display_mask(char *text)
{
    display_mask_t dm;
    char *c;
 
    c = text;
 
    while (*c) {
        switch (*c) {
        case 't': dm = dm | DM_THREAD; break;
        case 's': dm = dm | DM_SYSCALL; break;
        case 'i': dm = dm | DM_IPC; break;
        case 'p': dm = dm | DM_SYSTEM | DM_USER; break;
        default:
            printf("Unexpected event type '%c'\n", *c);
            exit(1);
        }
 
        ++c;
    }
 
    return dm;
}
 
static int parse_args(int argc, char *argv[])
{
    char *arg;
    char *err_p;
 
    task_id = 0;
 
    --argc; ++argv;
 
    while (argc > 0) {
        arg = *argv;
        if (arg[0] == '+') {
            display_mask = parse_display_mask(&arg[1]);
        } else if (arg[0] == '-') {
            if (arg[1] == 't') {
                /* Trace an already running task */
                --argc; ++argv;
                task_id = strtol(*argv, &err_p, 10);
                if (*err_p) {
                    printf("Task ID syntax error\n");
                    print_syntax();
                    return -1;
                }
            } else {
                printf("Uknown option '%s'\n", arg[0]);
                print_syntax();
                return -1;
            }
        } else {
            break;
        }
 
        --argc; ++argv;
    }
 
    if (task_id != 0) {
        if (argc == 0) return 0;
        printf("Extra arguments\n");
        print_syntax();
        return -1;
    }
 
    if (argc < 1) {
        printf("Missing argument\n");
        print_syntax();
        return -1;
    }
 
    /* Execute the specified command and trace the new task. */
    printf("Spawning '%s' with arguments:\n", *argv);
    {
        char **cp = argv;
        while (*cp) printf("'%s'\n", *cp++);
    }
    task_id = task_spawn(*argv, argv);
 
    return 0;
}
 
int main(int argc, char *argv[])
{
    printf("System Call / IPC Tracer\n");
 
    display_mask = DM_THREAD | DM_SYSTEM | DM_USER;
 
    if (parse_args(argc, argv) < 0)
        return 1;
 
    main_init();
    trace_active_task(task_id);
 
    return 0;
}
 
/** @}
 */
 

Rev 3454	Rev 3455
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 trace	29	/** @addtogroup trace
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 <task.h>	44	#include <task.h>
45		45
46	// Temporary: service and method names	46	// Temporary: service and method names
47	#include "proto.h"	47	#include "proto.h"
48	#include <ipc/services.h>	48	#include <ipc/services.h>
49	#include "../../srv/vfs/vfs.h"	49	#include "../../srv/vfs/vfs.h"
50	#include "../../srv/console/console.h"	50	#include "../../srv/console/console.h"
51		51
52	#include "syscalls.h"	52	#include "syscalls.h"
53	#include "ipcp.h"	53	#include "ipcp.h"
54	#include "errors.h"	54	#include "errors.h"
55	#include "trace.h"	55	#include "trace.h"
56		56
57	#define THBUF_SIZE 64	57	#define THBUF_SIZE 64
58	uintptr_t thread_hash_buf[THBUF_SIZE];	58	uintptr_t thread_hash_buf[THBUF_SIZE];
59	int n_threads;	59	int n_threads;
60		60
61	int next_thread_id;	61	int next_thread_id;
62		62
63	int phoneid;	63	int phoneid;
64	int abort_trace;	64	int abort_trace;
65		65
66	uintptr_t thash;	66	uintptr_t thash;
67	volatile int paused;	67	volatile int paused;
68		68
69	void thread_trace_start(uintptr_t thread_hash);	69	void thread_trace_start(uintptr_t thread_hash);
70		70
71	static proto_t *proto_console;	71	static proto_t *proto_console;
72	static task_id_t task_id;	72	static task_id_t task_id;
73		73
74	/** Combination of events/data to print. */	74	/** Combination of events/data to print. */
75	display_mask_t display_mask;	75	display_mask_t display_mask;
76		76
77	static int task_connect(task_id_t task_id)	77	static int task_connect(task_id_t task_id)
78	{	78	{
79	int rc;	79	int rc;
80		80
81	rc = ipc_connect_kbox(task_id);	81	rc = ipc_connect_kbox(task_id);
82		82
83	if (rc == ENOTSUP) {	83	if (rc == ENOTSUP) {
84	printf("You do not have userspace debugging support "	84	printf("You do not have userspace debugging support "
85	"compiled in the kernel.\n");	85	"compiled in the kernel.\n");
86	printf("Compile kernel with 'Support for userspace debuggers' "	86	printf("Compile kernel with 'Support for userspace debuggers' "
87	"(CONFIG_UDEBUG) enabled.\n");	87	"(CONFIG_UDEBUG) enabled.\n");
88	return rc;	88	return rc;
89	}	89	}
90		90
91	if (rc < 0) {	91	if (rc < 0) {
92	printf("Error connecting\n");	92	printf("Error connecting\n");
93	printf("ipc_connect_task(%lld) -> %d ", task_id, rc);	93	printf("ipc_connect_task(%lld) -> %d ", task_id, rc);
94	return rc;	94	return rc;
95	}	95	}
96		96
97	phoneid = rc;	97	phoneid = rc;
98		98
99	rc = udebug_begin(phoneid);	99	rc = udebug_begin(phoneid);
100	if (rc < 0) {	100	if (rc < 0) {
101	printf("udebug_begin() -> %d\n", rc);	101	printf("udebug_begin() -> %d\n", rc);
102	return rc;	102	return rc;
103	}	103	}
104		104
105	rc = udebug_set_evmask(phoneid, UDEBUG_EM_ALL);	105	rc = udebug_set_evmask(phoneid, UDEBUG_EM_ALL);
106	if (rc < 0) {	106	if (rc < 0) {
107	printf("udebug_set_evmask(0x%x) -> %d\n ", UDEBUG_EM_ALL, rc);	107	printf("udebug_set_evmask(0x%x) -> %d\n ", UDEBUG_EM_ALL, rc);
108	return rc;	108	return rc;
109	}	109	}
110		110
111	return 0;	111	return 0;
112	}	112	}
113		113
114	static int get_thread_list(void)	114	static int get_thread_list(void)
115	{	115	{
116	int rc;	116	int rc;
117	size_t tb_copied;	117	size_t tb_copied;
118	size_t tb_needed;	118	size_t tb_needed;
119	int i;	119	int i;
120		120
121	rc = udebug_thread_read(phoneid, thread_hash_buf,	121	rc = udebug_thread_read(phoneid, thread_hash_buf,
122	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);	122	THBUF_SIZE*sizeof(unsigned), &tb_copied, &tb_needed);
123	if (rc < 0) {	123	if (rc < 0) {
124	printf("udebug_thread_read() -> %d\n", rc);	124	printf("udebug_thread_read() -> %d\n", rc);
125	return rc;	125	return rc;
126	}	126	}
127		127
128	n_threads = tb_copied / sizeof(uintptr_t);	128	n_threads = tb_copied / sizeof(uintptr_t);
129		129
130	printf("Threads:");	130	printf("Threads:");
131	for (i = 0; i < n_threads; i++) {	131	for (i = 0; i < n_threads; i++) {
132	printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);	132	printf(" [%d] (hash 0x%lx)", 1+i, thread_hash_buf[i]);
133	}	133	}
134	printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));	134	printf("\ntotal of %u threads\n", tb_needed / sizeof(uintptr_t));
135		135
136	return 0;	136	return 0;
137	}	137	}
138		138
139	void val_print(int val, val_type_t v_type)	139	void val_print(sysarg_t val, val_type_t v_type)
140	{	140	{
141	switch (v_type) {	141	switch (v_type) {
142	case V_VOID:	142	case V_VOID:
143	printf("<void>");	143	printf("<void>");
144	break;	144	break;
145		145
146	case V_INTEGER:	146	case V_INTEGER:
147	printf("%d", val);	147	printf("%ld", val);
148	break;	148	break;
149		149
150	case V_HASH:	150	case V_HASH:
151	printf("0x%08x", val);	151	printf("0x%08lx", val);
152	break;	152	break;
153		153
154	case V_ERRNO:	154	case V_ERRNO:
155	if (val >= -15 && val <= 0) {	155	if (val >= -15 && val <= 0) {
156	printf("%d %s (%s)", val,	156	printf("%ld %s (%s)", val,
157	err_desc[-val].name,	157	err_desc[-val].name,
158	err_desc[-val].desc);	158	err_desc[-val].desc);
159	} else {	159	} else {
160	printf("%d", val);	160	printf("%ld", val);
161	}	161	}
162	break;	162	break;
163	case V_INT_ERRNO:	163	case V_INT_ERRNO:
164	if (val >= -15 && val < 0) {	164	if (val >= -15 && val < 0) {
165	printf("%d %s (%s)", val,	165	printf("%ld %s (%s)", val,
166	err_desc[-val].name,	166	err_desc[-val].name,
167	err_desc[-val].desc);	167	err_desc[-val].desc);
168	} else {	168	} else {
169	printf("%d", val);	169	printf("%ld", val);
170	}	170	}
171	break;	171	break;
172		172
173	case V_CHAR:	173	case V_CHAR:
174	if (val >= 0x20 && val < 0x7f) {	174	if (val >= 0x20 && val < 0x7f) {
175	printf("'%c'", val);	175	printf("'%c'", val);
176	} else {	176	} else {
177	switch (val) {	177	switch (val) {
178	case '\a': printf("'\\a'"); break;	178	case '\a': printf("'\\a'"); break;
179	case '\b': printf("'\\b'"); break;	179	case '\b': printf("'\\b'"); break;
180	case '\n': printf("'\\n'"); break;	180	case '\n': printf("'\\n'"); break;
181	case '\r': printf("'\\r'"); break;	181	case '\r': printf("'\\r'"); break;
182	case '\t': printf("'\\t'"); break;	182	case '\t': printf("'\\t'"); break;
183	case '\\': printf("'\\\\'"); break;	183	case '\\': printf("'\\\\'"); break;
184	default: printf("'\\x%X'"); break;	184	default: printf("'\\x%02lX'", val); break;
185	}	185	}
186	}	186	}
187	break;	187	break;
188	}	188	}
189	}	189	}
190		190
191		191
192	static void print_sc_retval(int retval, val_type_t val_type)	192	static void print_sc_retval(sysarg_t retval, val_type_t val_type)
193	{	193	{
194	printf(" -> ");	194	printf(" -> ");
195	val_print(retval, val_type);	195	val_print(retval, val_type);
196	putchar('\n');	196	putchar('\n');
197	}	197	}
198		198
199	static void print_sc_args(sysarg_t *sc_args, int n)	199	static void print_sc_args(sysarg_t *sc_args, int n)
200	{	200	{
201	int i;	201	int i;
202		202
203	putchar('(');	203	putchar('(');
204	if (n > 0) printf("%ld", sc_args[0]);	204	if (n > 0) printf("%ld", sc_args[0]);
205	for (i = 1; i < n; i++) {	205	for (i = 1; i < n; i++) {
206	printf(", %ld", sc_args[i]);	206	printf(", %ld", sc_args[i]);
207	}	207	}
208	putchar(')');	208	putchar(')');
209	}	209	}
210		210
211	static void sc_ipc_call_async_fast(sysarg_t *sc_args, sysarg_t sc_rc)	211	static void sc_ipc_call_async_fast(sysarg_t *sc_args, sysarg_t sc_rc)
212	{	212	{
213	ipc_call_t call;	213	ipc_call_t call;
214	ipcarg_t phoneid;	214	ipcarg_t phoneid;
215		215
216	if (sc_rc == IPC_CALLRET_FATAL \|\| sc_rc == IPC_CALLRET_TEMPORARY)	216	if (sc_rc == IPC_CALLRET_FATAL \|\| sc_rc == IPC_CALLRET_TEMPORARY)
217	return;	217	return;
218		218
219	phoneid = sc_args[0];	219	phoneid = sc_args[0];
220		220
221	IPC_SET_METHOD(call, sc_args[1]);	221	IPC_SET_METHOD(call, sc_args[1]);
222	IPC_SET_ARG1(call, sc_args[2]);	222	IPC_SET_ARG1(call, sc_args[2]);
223	IPC_SET_ARG2(call, sc_args[3]);	223	IPC_SET_ARG2(call, sc_args[3]);
224	IPC_SET_ARG3(call, sc_args[4]);	224	IPC_SET_ARG3(call, sc_args[4]);
225	IPC_SET_ARG4(call, sc_args[5]);	225	IPC_SET_ARG4(call, sc_args[5]);
226	IPC_SET_ARG5(call, 0);	226	IPC_SET_ARG5(call, 0);
227		227
228	ipcp_call_out(phoneid, &call, sc_rc);	228	ipcp_call_out(phoneid, &call, sc_rc);
229	}	229	}
230		230
231	static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)	231	static void sc_ipc_call_async_slow(sysarg_t *sc_args, sysarg_t sc_rc)
232	{	232	{
233	ipc_call_t call;	233	ipc_call_t call;
234	int rc;	234	int rc;
235		235
236	if (sc_rc == IPC_CALLRET_FATAL \|\| sc_rc == IPC_CALLRET_TEMPORARY)	236	if (sc_rc == IPC_CALLRET_FATAL \|\| sc_rc == IPC_CALLRET_TEMPORARY)
237	return;	237	return;
238		238
239	memset(&call, 0, sizeof(call));	239	memset(&call, 0, sizeof(call));
240	rc = udebug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args));	240	rc = udebug_mem_read(phoneid, &call.args, sc_args[1], sizeof(call.args));
241		241
242	if (rc >= 0) {	242	if (rc >= 0) {
243	ipcp_call_out(sc_args[0], &call, sc_rc);	243	ipcp_call_out(sc_args[0], &call, sc_rc);
244	}	244	}
245	}	245	}
246		246
247	static void sc_ipc_call_sync_fast(sysarg_t *sc_args)	247	static void sc_ipc_call_sync_fast(sysarg_t *sc_args)
248	{	248	{
249	ipc_call_t question, reply;	249	ipc_call_t question, reply;
250	int rc;	250	int rc;
251	int phoneidx;	251	int phoneidx;
252		252
253	// printf("sc_ipc_call_sync_fast()\n");	253	// printf("sc_ipc_call_sync_fast()\n");
254	phoneidx = sc_args[0];	254	phoneidx = sc_args[0];
255		255
256	IPC_SET_METHOD(question, sc_args[1]);	256	IPC_SET_METHOD(question, sc_args[1]);
257	IPC_SET_ARG1(question, sc_args[2]);	257	IPC_SET_ARG1(question, sc_args[2]);
258	IPC_SET_ARG2(question, sc_args[3]);	258	IPC_SET_ARG2(question, sc_args[3]);
259	IPC_SET_ARG3(question, sc_args[4]);	259	IPC_SET_ARG3(question, sc_args[4]);
260	IPC_SET_ARG4(question, 0);	260	IPC_SET_ARG4(question, 0);
261	IPC_SET_ARG5(question, 0);	261	IPC_SET_ARG5(question, 0);
262		262
263	// printf("memset\n");	263	// printf("memset\n");
264	memset(&reply, 0, sizeof(reply));	264	memset(&reply, 0, sizeof(reply));
265	// printf("udebug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n",	265	// printf("udebug_mem_read(phone=%d, buffer_ptr=%u, src_addr=%d, n=%d\n",
266	// phoneid, &reply.args, sc_args[5], sizeof(reply.args));	266	// phoneid, &reply.args, sc_args[5], sizeof(reply.args));
267	rc = udebug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args));	267	rc = udebug_mem_read(phoneid, &reply.args, sc_args[5], sizeof(reply.args));
268	// printf("dmr->%d\n", rc);	268	// printf("dmr->%d\n", rc);
269	if (rc < 0) return;	269	if (rc < 0) return;
270		270
271	// printf("call ipc_call_sync\n");	271	// printf("call ipc_call_sync\n");
272	ipcp_call_sync(phoneidx, &question, &reply);	272	ipcp_call_sync(phoneidx, &question, &reply);
273	}	273	}
274		274
275	static void sc_ipc_call_sync_slow(sysarg_t *sc_args)	275	static void sc_ipc_call_sync_slow(sysarg_t *sc_args)
276	{	276	{
277	ipc_call_t question, reply;	277	ipc_call_t question, reply;
278	int rc;	278	int rc;
279		279
280	memset(&question, 0, sizeof(question));	280	memset(&question, 0, sizeof(question));
281	rc = udebug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args));	281	rc = udebug_mem_read(phoneid, &question.args, sc_args[1], sizeof(question.args));
282	printf("dmr->%d\n", rc);	282	printf("dmr->%d\n", rc);
283	if (rc < 0) return;	283	if (rc < 0) return;
284		284
285	memset(&reply, 0, sizeof(reply));	285	memset(&reply, 0, sizeof(reply));
286	rc = udebug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args));	286	rc = udebug_mem_read(phoneid, &reply.args, sc_args[2], sizeof(reply.args));
287	printf("dmr->%d\n", rc);	287	printf("dmr->%d\n", rc);
288	if (rc < 0) return;	288	if (rc < 0) return;
289		289
290	ipcp_call_sync(sc_args[0], &question, &reply);	290	ipcp_call_sync(sc_args[0], &question, &reply);
291	}	291	}
292		292
293	static void sc_ipc_wait(sysarg_t *sc_args, int sc_rc)	293	static void sc_ipc_wait(sysarg_t *sc_args, int sc_rc)
294	{	294	{
295	ipc_call_t call;	295	ipc_call_t call;
296	int rc;	296	int rc;
297		297
298	if (sc_rc == 0) return;	298	if (sc_rc == 0) return;
299		299
300	memset(&call, 0, sizeof(call));	300	memset(&call, 0, sizeof(call));
301	rc = udebug_mem_read(phoneid, &call, sc_args[0], sizeof(call));	301	rc = udebug_mem_read(phoneid, &call, sc_args[0], sizeof(call));
302	// printf("udebug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n",	302	// printf("udebug_mem_read(phone %d, dest %d, app-mem src %d, size %d -> %d\n",
303	// phoneid, (int)&call, sc_args[0], sizeof(call), rc);	303	// phoneid, (int)&call, sc_args[0], sizeof(call), rc);
304		304
305	if (rc >= 0) {	305	if (rc >= 0) {
306	ipcp_call_in(&call, sc_rc);	306	ipcp_call_in(&call, sc_rc);
307	}	307	}
308	}	308	}
309		309
310	static void event_syscall_b(unsigned thread_id, uintptr_t thread_hash,	310	static void event_syscall_b(unsigned thread_id, uintptr_t thread_hash,
311	unsigned sc_id, sysarg_t sc_rc)	311	unsigned sc_id, sysarg_t sc_rc)
312	{	312	{
313	sysarg_t sc_args[6];	313	sysarg_t sc_args[6];
314	int rc;	314	int rc;
315		315
316	/* Read syscall arguments */	316	/* Read syscall arguments */
317	rc = udebug_args_read(phoneid, thread_hash, sc_args);	317	rc = udebug_args_read(phoneid, thread_hash, sc_args);
318		318
319	async_serialize_start();	319	async_serialize_start();
320		320
321	// printf("[%d] ", thread_id);	321	// printf("[%d] ", thread_id);
322		322
323	if (rc < 0) {	323	if (rc < 0) {
324	printf("error\n");	324	printf("error\n");
325	async_serialize_end();	325	async_serialize_end();
326	return;	326	return;
327	}	327	}
328		328
329	if ((display_mask & DM_SYSCALL) != 0) {	329	if ((display_mask & DM_SYSCALL) != 0) {
330	/* Print syscall name and arguments */	330	/* Print syscall name and arguments */
331	printf("%s", syscall_desc[sc_id].name);	331	printf("%s", syscall_desc[sc_id].name);
332	print_sc_args(sc_args, syscall_desc[sc_id].n_args);	332	print_sc_args(sc_args, syscall_desc[sc_id].n_args);
333	}	333	}
334		334
335	async_serialize_end();	335	async_serialize_end();
336	}	336	}
337		337
338	static void event_syscall_e(unsigned thread_id, uintptr_t thread_hash,	338	static void event_syscall_e(unsigned thread_id, uintptr_t thread_hash,
339	unsigned sc_id, sysarg_t sc_rc)	339	unsigned sc_id, sysarg_t sc_rc)
340	{	340	{
341	sysarg_t sc_args[6];	341	sysarg_t sc_args[6];
342	int rv_type;	342	int rv_type;
343	int rc;	343	int rc;
344		344
345	/* Read syscall arguments */	345	/* Read syscall arguments */
346	rc = udebug_args_read(phoneid, thread_hash, sc_args);	346	rc = udebug_args_read(phoneid, thread_hash, sc_args);
347		347
348	async_serialize_start();	348	async_serialize_start();
349		349
350	// printf("[%d] ", thread_id);	350	// printf("[%d] ", thread_id);
351		351
352	if (rc < 0) {	352	if (rc < 0) {
353	printf("error\n");	353	printf("error\n");
354	async_serialize_end();	354	async_serialize_end();
355	return;	355	return;
356	}	356	}
357		357
358	if ((display_mask & DM_SYSCALL) != 0) {	358	if ((display_mask & DM_SYSCALL) != 0) {
359	/* Print syscall return value */	359	/* Print syscall return value */
360	rv_type = syscall_desc[sc_id].rv_type;	360	rv_type = syscall_desc[sc_id].rv_type;
361	print_sc_retval(sc_rc, rv_type);	361	print_sc_retval(sc_rc, rv_type);
362	}	362	}
363		363
364	switch (sc_id) {	364	switch (sc_id) {
365	case SYS_IPC_CALL_ASYNC_FAST:	365	case SYS_IPC_CALL_ASYNC_FAST:
366	sc_ipc_call_async_fast(sc_args, sc_rc);	366	sc_ipc_call_async_fast(sc_args, sc_rc);
367	break;	367	break;
368	case SYS_IPC_CALL_ASYNC_SLOW:	368	case SYS_IPC_CALL_ASYNC_SLOW:
369	sc_ipc_call_async_slow(sc_args, sc_rc);	369	sc_ipc_call_async_slow(sc_args, sc_rc);
370	break;	370	break;
371	case SYS_IPC_CALL_SYNC_FAST:	371	case SYS_IPC_CALL_SYNC_FAST:
372	sc_ipc_call_sync_fast(sc_args);	372	sc_ipc_call_sync_fast(sc_args);
373	break;	373	break;
374	case SYS_IPC_CALL_SYNC_SLOW:	374	case SYS_IPC_CALL_SYNC_SLOW:
375	sc_ipc_call_sync_slow(sc_args);	375	sc_ipc_call_sync_slow(sc_args);
376	break;	376	break;
377	case SYS_IPC_WAIT:	377	case SYS_IPC_WAIT:
378	sc_ipc_wait(sc_args, sc_rc);	378	sc_ipc_wait(sc_args, sc_rc);
379	break;	379	break;
380	default:	380	default:
381	break;	381	break;
382	}	382	}
383		383
384	async_serialize_end();	384	async_serialize_end();
385	}	385	}
386		386
387	static void event_thread_b(uintptr_t hash)	387	static void event_thread_b(uintptr_t hash)
388	{	388	{
389	async_serialize_start();	389	async_serialize_start();
390	printf("New thread, hash 0x%lx\n", hash);	390	printf("New thread, hash 0x%lx\n", hash);
391	async_serialize_end();	391	async_serialize_end();
392		392
393	thread_trace_start(hash);	393	thread_trace_start(hash);
394	}	394	}
395		395
396	static int trace_loop(void *thread_hash_arg)	396	static int trace_loop(void *thread_hash_arg)
397	{	397	{
398	int rc;	398	int rc;
399	unsigned ev_type;	399	unsigned ev_type;
400	uintptr_t thread_hash;	400	uintptr_t thread_hash;
401	unsigned thread_id;	401	unsigned thread_id;
402	sysarg_t val0, val1;	402	sysarg_t val0, val1;
403		403
404	thread_hash = (uintptr_t)thread_hash_arg;	404	thread_hash = (uintptr_t)thread_hash_arg;
405	thread_id = next_thread_id++;	405	thread_id = next_thread_id++;
406		406
407	printf("Start tracing thread [%d] (hash 0x%lx)\n", thread_id, thread_hash);	407	printf("Start tracing thread [%d] (hash 0x%lx)\n", thread_id, thread_hash);
408		408
409	while (!abort_trace) {	409	while (!abort_trace) {
410		410
411	/* Run thread until an event occurs */	411	/* Run thread until an event occurs */
412	rc = udebug_go(phoneid, thread_hash,	412	rc = udebug_go(phoneid, thread_hash,
413	&ev_type, &val0, &val1);	413	&ev_type, &val0, &val1);
414		414
415	// printf("rc = %d, ev_type=%d\n", rc, ev_type);	415	// printf("rc = %d, ev_type=%d\n", rc, ev_type);
416	if (ev_type == UDEBUG_EVENT_FINISHED) {	416	if (ev_type == UDEBUG_EVENT_FINISHED) {
417	/* Done tracing this thread */	417	/* Done tracing this thread */
418	break;	418	break;
419	}	419	}
420		420
421	if (rc >= 0) {	421	if (rc >= 0) {
422	switch (ev_type) {	422	switch (ev_type) {
423	case UDEBUG_EVENT_SYSCALL_B:	423	case UDEBUG_EVENT_SYSCALL_B:
424	event_syscall_b(thread_id, thread_hash, val0, (int)val1);	424	event_syscall_b(thread_id, thread_hash, val0, (int)val1);
425	break;	425	break;
426	case UDEBUG_EVENT_SYSCALL_E:	426	case UDEBUG_EVENT_SYSCALL_E:
427	event_syscall_e(thread_id, thread_hash, val0, (int)val1);	427	event_syscall_e(thread_id, thread_hash, val0, (int)val1);
428	break;	428	break;
429	case UDEBUG_EVENT_STOP:	429	case UDEBUG_EVENT_STOP:
430	printf("Stop event\n");	430	printf("Stop event\n");
431	printf("Waiting for resume\n");	431	printf("Waiting for resume\n");
432	while (paused) {	432	while (paused) {
433	usleep(1000000);	433	usleep(1000000);
434	fibril_yield();	434	fibril_yield();
435	printf(".");	435	printf(".");
436	}	436	}
437	printf("Resumed\n");	437	printf("Resumed\n");
438	break;	438	break;
439	case UDEBUG_EVENT_THREAD_B:	439	case UDEBUG_EVENT_THREAD_B:
440	event_thread_b(val0);	440	event_thread_b(val0);
441	break;	441	break;
442	case UDEBUG_EVENT_THREAD_E:	442	case UDEBUG_EVENT_THREAD_E:
443	printf("Thread 0x%lx exited\n", val0);	443	printf("Thread 0x%lx exited\n", val0);
444	abort_trace = 1;	444	abort_trace = 1;
445	break;	445	break;
446	default:	446	default:
447	printf("Unknown event type %d\n", ev_type);	447	printf("Unknown event type %d\n", ev_type);
448	break;	448	break;
449	}	449	}
450	}	450	}
451		451
452	}	452	}
453		453
454	printf("Finished tracing thread [%d]\n", thread_id);	454	printf("Finished tracing thread [%d]\n", thread_id);
455	return 0;	455	return 0;
456	}	456	}
457		457
458	void thread_trace_start(uintptr_t thread_hash)	458	void thread_trace_start(uintptr_t thread_hash)
459	{	459	{
460	fid_t fid;	460	fid_t fid;
461		461
462	thash = thread_hash;	462	thash = thread_hash;
463		463
464	fid = fibril_create(trace_loop, (void *)thread_hash);	464	fid = fibril_create(trace_loop, (void *)thread_hash);
465	if (fid == 0) {	465	if (fid == 0) {
466	printf("Warning: Failed creating fibril\n");	466	printf("Warning: Failed creating fibril\n");
467	}	467	}
468	fibril_add_ready(fid);	468	fibril_add_ready(fid);
469	}	469	}
470		470
471	static void trace_active_task(task_id_t task_id)	471	static void trace_active_task(task_id_t task_id)
472	{	472	{
473	int i;	473	int i;
474	int rc;	474	int rc;
475	int c;	475	int c;
476		476
477	rc = task_connect(task_id);	477	rc = task_connect(task_id);
478	if (rc < 0) {	478	if (rc < 0) {
479	printf("Failed to connect to task %lld\n", task_id);	479	printf("Failed to connect to task %lld\n", task_id);
480	return;	480	return;
481	}	481	}
482		482
483	printf("Connected to task %lld\n", task_id);	483	printf("Connected to task %lld\n", task_id);
484		484
485	ipcp_init();	485	ipcp_init();
486		486
487	/*	487	/*
488	* User apps now typically have console on phone 3.	488	* User apps now typically have console on phone 3.
489	* (Phones 1 and 2 are used by the loader).	489	* (Phones 1 and 2 are used by the loader).
490	*/	490	*/
491	ipcp_connection_set(3, 0, proto_console);	491	ipcp_connection_set(3, 0, proto_console);
492		492
493	rc = get_thread_list();	493	rc = get_thread_list();
494	if (rc < 0) {	494	if (rc < 0) {
495	printf("Failed to get thread list (error %d)\n", rc);	495	printf("Failed to get thread list (error %d)\n", rc);
496	return;	496	return;
497	}	497	}
498		498
499	abort_trace = 0;	499	abort_trace = 0;
500		500

Subversion Repositories HelenOS

(root)/trunk/uspace/app/trace/trace.c – Rev 3454 → 3455