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 * @syscall_nr: number of the syscall
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])
19 * @enter_event: associated syscall_enter trace event
20 * @exit_event: associated syscall_exit trace event
21 */
22struct syscall_metadata {
23 const char *name;
24 int syscall_nr;
25 int nb_args;
26 const char **types;
27 const char **args;
28
29 struct ftrace_event_call *enter_event;
30 struct ftrace_event_call *exit_event;
31};
32
33#ifdef CONFIG_FTRACE_SYSCALLS
34extern unsigned long arch_syscall_addr(int nr);
35extern int init_syscall_trace(struct ftrace_event_call *call);
36
37extern int syscall_enter_define_fields(struct ftrace_event_call *call);
38extern int syscall_exit_define_fields(struct ftrace_event_call *call);
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);
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);
47#endif
48
49#ifdef CONFIG_PERF_EVENTS
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);
54#endif
55
56#endif /* _TRACE_SYSCALL_H */