Commit | Line | Data |
---|---|---|
47788c58 FW |
1 | #ifndef _TRACE_SYSCALL_H |
2 | #define _TRACE_SYSCALL_H | |
3 | ||
a871bd33 | 4 | #include <linux/tracepoint.h> |
fb34a08c JB |
5 | #include <linux/unistd.h> |
6 | #include <linux/ftrace_event.h> | |
a871bd33 | 7 | |
47788c58 FW |
8 | #include <asm/ptrace.h> |
9 | ||
a871bd33 JB |
10 | |
11 | extern void syscall_regfunc(void); | |
12 | extern void syscall_unregfunc(void); | |
13 | ||
14 | DECLARE_TRACE_WITH_CALLBACK(syscall_enter, | |
15 | TP_PROTO(struct pt_regs *regs, long id), | |
16 | TP_ARGS(regs, id), | |
17 | syscall_regfunc, | |
18 | syscall_unregfunc | |
19 | ); | |
20 | ||
21 | DECLARE_TRACE_WITH_CALLBACK(syscall_exit, | |
22 | TP_PROTO(struct pt_regs *regs, long ret), | |
23 | TP_ARGS(regs, ret), | |
24 | syscall_regfunc, | |
25 | syscall_unregfunc | |
26 | ); | |
27 | ||
47788c58 FW |
28 | /* |
29 | * A syscall entry in the ftrace syscalls array. | |
30 | * | |
31 | * @name: name of the syscall | |
32 | * @nb_args: number of parameters it takes | |
33 | * @types: list of types as strings | |
34 | * @args: list of args as strings (args[i] matches types[i]) | |
64c12e04 JB |
35 | * @enter_id: associated ftrace enter event id |
36 | * @exit_id: associated ftrace exit event id | |
47788c58 FW |
37 | */ |
38 | struct syscall_metadata { | |
39 | const char *name; | |
40 | int nb_args; | |
41 | const char **types; | |
42 | const char **args; | |
64c12e04 JB |
43 | int enter_id; |
44 | int exit_id; | |
47788c58 FW |
45 | }; |
46 | ||
47 | #ifdef CONFIG_FTRACE_SYSCALLS | |
47788c58 | 48 | extern struct syscall_metadata *syscall_nr_to_meta(int nr); |
fb34a08c | 49 | extern int syscall_name_to_nr(char *name); |
64c12e04 JB |
50 | void set_syscall_enter_id(int num, int id); |
51 | void set_syscall_exit_id(int num, int id); | |
fb34a08c JB |
52 | extern struct trace_event event_syscall_enter; |
53 | extern struct trace_event event_syscall_exit; | |
54 | extern int reg_event_syscall_enter(void *ptr); | |
55 | extern void unreg_event_syscall_enter(void *ptr); | |
56 | extern int reg_event_syscall_exit(void *ptr); | |
57 | extern void unreg_event_syscall_exit(void *ptr); | |
64c12e04 JB |
58 | enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags); |
59 | enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags); | |
47788c58 FW |
60 | #endif |
61 | ||
62 | #endif /* _TRACE_SYSCALL_H */ |