Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl...
[sfrench/cifs-2.6.git] / include / trace / syscall.h
1 #ifndef _TRACE_SYSCALL_H
2 #define _TRACE_SYSCALL_H
3
4 #include <linux/tracepoint.h>
5 #include <linux/unistd.h>
6 #include <linux/trace_events.h>
7 #include <linux/thread_info.h>
8
9 #include <asm/ptrace.h>
10
11
12 /*
13  * A syscall entry in the ftrace syscalls array.
14  *
15  * @name: name of the syscall
16  * @syscall_nr: number of the syscall
17  * @nb_args: number of parameters it takes
18  * @types: list of types as strings
19  * @args: list of args as strings (args[i] matches types[i])
20  * @enter_fields: list of fields for syscall_enter trace event
21  * @enter_event: associated syscall_enter trace event
22  * @exit_event: associated syscall_exit trace event
23  */
24 struct syscall_metadata {
25         const char      *name;
26         int             syscall_nr;
27         int             nb_args;
28         const char      **types;
29         const char      **args;
30         struct list_head enter_fields;
31
32         struct trace_event_call *enter_event;
33         struct trace_event_call *exit_event;
34 };
35
36 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
37 static inline void syscall_tracepoint_update(struct task_struct *p)
38 {
39         if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
40                 set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
41         else
42                 clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT);
43 }
44 #else
45 static inline void syscall_tracepoint_update(struct task_struct *p)
46 {
47 }
48 #endif
49
50 #endif /* _TRACE_SYSCALL_H */