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review.evervolv.com / android_kernel_oneplus_msm8996 / bf56a4ea9f1683c5b223fd3a5dbea23f1fa91c34 / . / include / trace / syscall.h
blob: 5f8827c92db7e673a8d6e5c8aead370d3150d690 [file] [log] [blame]
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]1#ifndef _TRACE_SYSCALL_H
2#define _TRACE_SYSCALL_H
3
Jason Barona871bd32009-08-10 16:52:31 -0400[diff] [blame]4#include <linux/tracepoint.h>
Jason Baronfb34a082009-08-10 16:52:47 -0400[diff] [blame]5#include <linux/unistd.h>
6#include <linux/ftrace_event.h>
Jason Barona871bd32009-08-10 16:52:31 -0400[diff] [blame]7
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]8#include <asm/ptrace.h>
9
Jason Barona871bd32009-08-10 16:52:31 -0400[diff] [blame]10
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]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])
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]18 * @enter_id: associated ftrace enter event id
19 * @exit_id: associated ftrace exit event id
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]20 * @enter_event: associated syscall_enter trace event
21 * @exit_event: associated syscall_exit trace event
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]22 */
23struct syscall_metadata {
24 const char *name;
25 int nb_args;
26 const char **types;
27 const char **args;
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]28 int enter_id;
29 int exit_id;
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]30
31 struct ftrace_event_call *enter_event;
32 struct ftrace_event_call *exit_event;
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]33};
34
35#ifdef CONFIG_FTRACE_SYSCALLS
Frederic Weisbeckerc44fc772009-09-19 06:50:42 +0200[diff] [blame]36extern unsigned long arch_syscall_addr(int nr);
Jason Baronfb34a082009-08-10 16:52:47 -0400[diff] [blame]37extern int syscall_name_to_nr(char *name);
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]38void set_syscall_enter_id(int num, int id);
39void set_syscall_exit_id(int num, int id);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]40
Li Zefan10a5b662009-08-19 15:53:05 +0800[diff] [blame]41extern int syscall_enter_format(struct ftrace_event_call *call,
42 struct trace_seq *s);
43extern int syscall_exit_format(struct ftrace_event_call *call,
44 struct trace_seq *s);
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]45extern int syscall_enter_define_fields(struct ftrace_event_call *call);
46extern int syscall_exit_define_fields(struct ftrace_event_call *call);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]47extern int reg_event_syscall_enter(struct ftrace_event_call *call);
48extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
49extern int reg_event_syscall_exit(struct ftrace_event_call *call);
50extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
51extern int
52ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]53enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
54enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]55#endif
Jason Baronf4b5ffc2009-08-10 16:53:02 -0400[diff] [blame]56#ifdef CONFIG_EVENT_PROFILE
57int reg_prof_syscall_enter(char *name);
58void unreg_prof_syscall_enter(char *name);
59int reg_prof_syscall_exit(char *name);
60void unreg_prof_syscall_exit(char *name);
61
62#endif
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]63
64#endif /* _TRACE_SYSCALL_H */