Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
8#include <asm/ptrace.h>
9
10
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])
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
22 */
23struct syscall_metadata {
24 const char *name;
25 int nb_args;
26 const char **types;
27 const char **args;
28 int enter_id;
29 int exit_id;
30
31 struct ftrace_event_call *enter_event;
32 struct ftrace_event_call *exit_event;
33};
34
35#ifdef CONFIG_FTRACE_SYSCALLS
36extern struct syscall_metadata *syscall_nr_to_meta(int nr);
37extern int syscall_name_to_nr(char *name);
38void set_syscall_enter_id(int num, int id);
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);
51extern int syscall_exit_define_fields(struct ftrace_event_call *call);
52enum 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);
54#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
61#endif
62
63#endif /* _TRACE_SYSCALL_H */