aboutsummaryrefslogtreecommitdiffstats
path: root/include/trace/syscall.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/trace/syscall.h')
-rw-r--r--include/trace/syscall.h39
1 files changed, 16 insertions, 23 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 5dc283ba5ae0..e5e5f48dbfb3 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -12,52 +12,45 @@
12 * A syscall entry in the ftrace syscalls array. 12 * A syscall entry in the ftrace syscalls array.
13 * 13 *
14 * @name: name of the syscall 14 * @name: name of the syscall
15 * @syscall_nr: number of the syscall
15 * @nb_args: number of parameters it takes 16 * @nb_args: number of parameters it takes
16 * @types: list of types as strings 17 * @types: list of types as strings
17 * @args: list of args as strings (args[i] matches types[i]) 18 * @args: list of args as strings (args[i] matches types[i])
18 * @enter_id: associated ftrace enter event id
19 * @exit_id: associated ftrace exit event id
20 * @enter_event: associated syscall_enter trace event 19 * @enter_event: associated syscall_enter trace event
21 * @exit_event: associated syscall_exit trace event 20 * @exit_event: associated syscall_exit trace event
22 */ 21 */
23struct syscall_metadata { 22struct syscall_metadata {
24 const char *name; 23 const char *name;
24 int syscall_nr;
25 int nb_args; 25 int nb_args;
26 const char **types; 26 const char **types;
27 const char **args; 27 const char **args;
28 int enter_id;
29 int exit_id;
30 28
31 struct ftrace_event_call *enter_event; 29 struct ftrace_event_call *enter_event;
32 struct ftrace_event_call *exit_event; 30 struct ftrace_event_call *exit_event;
33}; 31};
34 32
35#ifdef CONFIG_FTRACE_SYSCALLS 33#ifdef CONFIG_FTRACE_SYSCALLS
36extern struct syscall_metadata *syscall_nr_to_meta(int nr); 34extern unsigned long arch_syscall_addr(int nr);
37extern int syscall_name_to_nr(char *name); 35extern int init_syscall_trace(struct ftrace_event_call *call);
38void set_syscall_enter_id(int num, int id); 36
39void set_syscall_exit_id(int num, int id);
40extern struct trace_event event_syscall_enter;
41extern struct trace_event event_syscall_exit;
42extern int reg_event_syscall_enter(void *ptr);
43extern void unreg_event_syscall_enter(void *ptr);
44extern int reg_event_syscall_exit(void *ptr);
45extern void unreg_event_syscall_exit(void *ptr);
46extern int syscall_enter_format(struct ftrace_event_call *call,
47 struct trace_seq *s);
48extern int syscall_exit_format(struct ftrace_event_call *call,
49 struct trace_seq *s);
50extern int syscall_enter_define_fields(struct ftrace_event_call *call); 37extern int syscall_enter_define_fields(struct ftrace_event_call *call);
51extern int syscall_exit_define_fields(struct ftrace_event_call *call); 38extern int syscall_exit_define_fields(struct ftrace_event_call *call);
39extern int reg_event_syscall_enter(struct ftrace_event_call *call);
40extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
41extern int reg_event_syscall_exit(struct ftrace_event_call *call);
42extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
43extern int
44ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
52enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags); 45enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
53enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags); 46enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
54#endif 47#endif
55#ifdef CONFIG_EVENT_PROFILE
56int reg_prof_syscall_enter(char *name);
57void unreg_prof_syscall_enter(char *name);
58int reg_prof_syscall_exit(char *name);
59void unreg_prof_syscall_exit(char *name);
60 48
49#ifdef CONFIG_PERF_EVENTS
50int perf_sysenter_enable(struct ftrace_event_call *call);
51void perf_sysenter_disable(struct ftrace_event_call *call);
52int perf_sysexit_enable(struct ftrace_event_call *call);
53void perf_sysexit_disable(struct ftrace_event_call *call);
61#endif 54#endif
62 55
63#endif /* _TRACE_SYSCALL_H */ 56#endif /* _TRACE_SYSCALL_H */