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Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
[mirror_ubuntu-artful-kernel.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/ftrace_event.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 ftrace_event_call *enter_event;
33 struct ftrace_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 */