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gerrit-public.fairphone.software / fp2-dev / kernel / msm / 2e33af029556cb8bd22bf4f86f42d540249177ea / . / include / trace / syscall.h
blob: 39647743cd95e9ba975c9ff1f8955faf9ba2790f [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;
Steven Rostedt2e33af02010-04-22 10:35:55 -0400[diff] [blame^]28 struct list_head enter_fields;
29 struct list_head exit_fields;
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);
Lai Jiangshana1301da2009-12-01 16:23:55 +0800[diff] [blame]37extern int init_syscall_trace(struct ftrace_event_call *call);
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]38
Masami Hiramatsubd1a5c82009-08-13 16:34:53 -0400[diff] [blame]39extern int reg_event_syscall_enter(struct ftrace_event_call *call);
40extern void unreg_event_syscall_enter(struct ftrace_event_call *call);
41extern int reg_event_syscall_exit(struct ftrace_event_call *call);
42extern void unreg_event_syscall_exit(struct ftrace_event_call *call);
43extern int
44ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s);
Jason Baron64c12e02009-08-10 16:52:53 -0400[diff] [blame]45enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
46enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]47#endif
Li Zefan07b139c2009-12-21 14:27:35 +0800[diff] [blame]48
49#ifdef CONFIG_PERF_EVENTS
Frederic Weisbecker97d5a222010-03-05 05:35:37 +0100[diff] [blame]50int perf_sysenter_enable(struct ftrace_event_call *call);
51void perf_sysenter_disable(struct ftrace_event_call *call);
52int perf_sysexit_enable(struct ftrace_event_call *call);
53void perf_sysexit_disable(struct ftrace_event_call *call);
Jason Baronf4b5ffc2009-08-10 16:53:02 -0400[diff] [blame]54#endif
Frederic Weisbecker47788c52009-04-08 20:40:59 +0200[diff] [blame]55
56#endif /* _TRACE_SYSCALL_H */