1 #ifndef _TRACE_SYSCALL_H
2 #define _TRACE_SYSCALL_H
4 #include <linux/tracepoint.h>
5 #include <linux/unistd.h>
6 #include <linux/ftrace_event.h>
8 #include <asm/ptrace.h>
12 * A syscall entry in the ftrace syscalls array.
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])
18 * @enter_id: associated ftrace enter event id
19 * @exit_id: associated ftrace exit event id
20 * @enter_event: associated syscall_enter trace event
21 * @exit_event: associated syscall_exit trace event
23 struct syscall_metadata {
31 struct ftrace_event_call *enter_event;
32 struct ftrace_event_call *exit_event;
35 #ifdef CONFIG_FTRACE_SYSCALLS
36 extern unsigned long arch_syscall_addr(int nr);
37 extern int syscall_name_to_nr(const char *name);
38 void set_syscall_enter_id(int num, int id);
39 void set_syscall_exit_id(int num, int id);
41 extern int syscall_enter_format(struct ftrace_event_call *call,
43 extern int syscall_exit_format(struct ftrace_event_call *call,
45 extern int syscall_enter_define_fields(struct ftrace_event_call *call);
46 extern int syscall_exit_define_fields(struct ftrace_event_call *call);
47 extern int reg_event_syscall_enter(struct ftrace_event_call *call);
48 extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
49 extern int reg_event_syscall_exit(struct ftrace_event_call *call);
50 extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
52 ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
53 enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
54 enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
56 #ifdef CONFIG_EVENT_PROFILE
57 int reg_prof_syscall_enter(char *name);
58 void unreg_prof_syscall_enter(char *name);
59 int reg_prof_syscall_exit(char *name);
60 void unreg_prof_syscall_exit(char *name);
64 #endif /* _TRACE_SYSCALL_H */