1/*
2 * This file is part of ltrace.
3 * Copyright (C) 2009 Juan Cespedes
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 */
20
21#ifndef _LTRACE_H_
22#define _LTRACE_H_
23
24typedef enum Event_type Event_type;
25enum Event_type {
26	EVENT_NONE=0,
27	EVENT_SIGNAL,
28	EVENT_EXIT,
29	EVENT_EXIT_SIGNAL,
30	EVENT_SYSCALL,
31	EVENT_SYSRET,
32	EVENT_ARCH_SYSCALL,
33	EVENT_ARCH_SYSRET,
34	EVENT_CLONE,
35	EVENT_VFORK,
36	EVENT_EXEC,
37	EVENT_BREAKPOINT,
38	EVENT_LIBCALL,
39	EVENT_LIBRET,
40	EVENT_NEW,        /* in this case, proc is NULL */
41	EVENT_MAX
42};
43
44typedef struct Event Event;
45struct Event {
46	struct Event * next;
47	struct process *proc;
48	Event_type type;
49	union {
50		int ret_val;     /* EVENT_EXIT */
51		int signum;      /* EVENT_SIGNAL, EVENT_EXIT_SIGNAL */
52		int sysnum;      /* EVENT_SYSCALL, EVENT_SYSRET */
53		void * brk_addr; /* EVENT_BREAKPOINT */
54		int newpid;      /* EVENT_CLONE, EVENT_NEW */
55	} e_un;
56};
57
58typedef void (*callback_func) (Event *);
59
60extern void ltrace_init(int argc, char **argv);
61extern void ltrace_add_callback(callback_func f, Event_type type);
62extern void ltrace_main(void);
63
64#endif /* _LTRACE_H_ */
65