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gerrit-public.fairphone.software / kernel / msm / c252f65793874b56d50395ab604db465ce688665 / . / include / trace / syscall.h
blob: 1531eef3071f8ddd10654fd32ce0a6abab83314b [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
Lai Jiangshanc252f652009-12-01 16:23:47 +0800[diff] [blame^]15 * @syscall_nr: number of the syscall
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]16 * @nb_args: number of parameters it takes
17 * @types: list of types as strings
18 * @args: list of args as strings (args[i] matches types[i])
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]19 * @enter_event: associated syscall_enter trace event
20 * @exit_event: associated syscall_exit trace event
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]21 */
22struct syscall_metadata {
23 const char *name;
Lai Jiangshanc252f652009-12-01 16:23:47 +0800[diff] [blame^]24 int syscall_nr;
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]25 int nb_args;
26 const char **types;
27 const char **args;
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]28
29 struct ftrace_event_call *enter_event;
30 struct ftrace_event_call *exit_event;
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]31};
32
33#ifdef CONFIG_FTRACE_SYSCALLS
Frederic Weisbeckerc44fc772009-09-19 06:50:42 +0200[diff] [blame]34extern unsigned long arch_syscall_addr(int nr);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]35
Li Zefan10a5b662009-08-19 15:53:05 +0800[diff] [blame]36extern int syscall_enter_format(struct ftrace_event_call *call,
37 struct trace_seq *s);
38extern int syscall_exit_format(struct ftrace_event_call *call,
39 struct trace_seq *s);
Li Zefan540b7b82009-08-19 15:54:51 +0800[diff] [blame]40extern int syscall_enter_define_fields(struct ftrace_event_call *call);
41extern int syscall_exit_define_fields(struct ftrace_event_call *call);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]42extern int reg_event_syscall_enter(struct ftrace_event_call *call);
43extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
44extern int reg_event_syscall_exit(struct ftrace_event_call *call);
45extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
46extern int
47ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]48enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
49enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]50#endif
Jason Baronf4b5ffc2009-08-10 16:53:02 -0400[diff] [blame]51#ifdef CONFIG_EVENT_PROFILE
52int reg_prof_syscall_enter(char *name);
53void unreg_prof_syscall_enter(char *name);
54int reg_prof_syscall_exit(char *name);
55void unreg_prof_syscall_exit(char *name);
56
57#endif
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]58
59#endif /* _TRACE_SYSCALL_H */