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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 | 10 | |
47788c58 FW |
11 | /* |
12 | * A syscall entry in the ftrace syscalls array. | |
13 | * | |
14 | * @name: name of the syscall | |
15 | * @nb_args: number of parameters it takes | |
16 | * @types: list of types as strings | |
17 | * @args: list of args as strings (args[i] matches types[i]) | |
64c12e04 JB |
18 | * @enter_id: associated ftrace enter event id |
19 | * @exit_id: associated ftrace exit event id | |
540b7b8d LZ |
20 | * @enter_event: associated syscall_enter trace event |
21 | * @exit_event: associated syscall_exit trace event | |
47788c58 FW |
22 | */ |
23 | struct syscall_metadata { | |
24 | const char *name; | |
25 | int nb_args; | |
26 | const char **types; | |
27 | const char **args; | |
64c12e04 JB |
28 | int enter_id; |
29 | int exit_id; | |
540b7b8d LZ |
30 | |
31 | struct ftrace_event_call *enter_event; | |
32 | struct ftrace_event_call *exit_event; | |
47788c58 FW |
33 | }; |
34 | ||
35 | #ifdef CONFIG_FTRACE_SYSCALLS | |
47788c58 | 36 | extern struct syscall_metadata *syscall_nr_to_meta(int nr); |
fb34a08c | 37 | extern int syscall_name_to_nr(char *name); |
64c12e04 JB |
38 | void set_syscall_enter_id(int num, int id); |
39 | void set_syscall_exit_id(int num, int id); | |
fb34a08c JB |
40 | extern struct trace_event event_syscall_enter; |
41 | extern struct trace_event event_syscall_exit; | |
42 | extern int reg_event_syscall_enter(void *ptr); | |
43 | extern void unreg_event_syscall_enter(void *ptr); | |
44 | extern int reg_event_syscall_exit(void *ptr); | |
45 | extern void unreg_event_syscall_exit(void *ptr); | |
10a5b66f LZ |
46 | extern int syscall_enter_format(struct ftrace_event_call *call, |
47 | struct trace_seq *s); | |
48 | extern int syscall_exit_format(struct ftrace_event_call *call, | |
49 | struct trace_seq *s); | |
540b7b8d LZ |
50 | extern int syscall_enter_define_fields(struct ftrace_event_call *call); |
51 | extern int syscall_exit_define_fields(struct ftrace_event_call *call); | |
64c12e04 JB |
52 | enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags); |
53 | enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags); | |
f4b5ffcc JB |
54 | #endif |
55 | #ifdef CONFIG_EVENT_PROFILE | |
56 | int reg_prof_syscall_enter(char *name); | |
57 | void unreg_prof_syscall_enter(char *name); | |
58 | int reg_prof_syscall_exit(char *name); | |
59 | void unreg_prof_syscall_exit(char *name); | |
60 | ||
47788c58 FW |
61 | #endif |
62 | ||
63 | #endif /* _TRACE_SYSCALL_H */ |