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gerrit-public.fairphone.software / kernel / msm-4.9 / bd1a5c849bdcc5c89e4a6a18216cd2b9a7a8a78f / . / include / trace / syscall.h
blob: e290b86f61671b366f193d7664b0d9c6e7931477 [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 Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]36extern struct syscall_metadata *syscall_nr_to_meta(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);
Jason Baronfb34a082009-08-10 16:52:47 -0400[diff] [blame]40extern struct trace_event event_syscall_enter;
41extern struct trace_event event_syscall_exit;
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame^]42
Li Zefan10a5b662009-08-19 15:53:05 +0800[diff] [blame]43extern int syscall_enter_format(struct ftrace_event_call *call,
44 struct trace_seq *s);
45extern int syscall_exit_format(struct ftrace_event_call *call,
46 struct trace_seq *s);
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]47extern int syscall_enter_define_fields(struct ftrace_event_call *call);
48extern int syscall_exit_define_fields(struct ftrace_event_call *call);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame^]49extern int reg_event_syscall_enter(struct ftrace_event_call *call);
50extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
51extern int reg_event_syscall_exit(struct ftrace_event_call *call);
52extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
53extern int
54ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]55enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
56enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]57#endif
Jason Baronf4b5ffc2009-08-10 16:53:02 -0400[diff] [blame]58#ifdef CONFIG_EVENT_PROFILE
59int reg_prof_syscall_enter(char *name);
60void unreg_prof_syscall_enter(char *name);
61int reg_prof_syscall_exit(char *name);
62void unreg_prof_syscall_exit(char *name);
63
64#endif
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]65
66#endif /* _TRACE_SYSCALL_H */