64c12e0444
The current state of syscalls tracepoints generates only one event id for every syscall events. This patch associates an id with each syscall trace event, so that we can identify each syscall trace event using the 'perf' tool. Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Jiaying Zhang <jiayingz@google.com> Cc: Martin Bligh <mbligh@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
#ifndef _TRACE_SYSCALL_H
|
|
#define _TRACE_SYSCALL_H
|
|
|
|
#include <linux/tracepoint.h>
|
|
#include <linux/unistd.h>
|
|
#include <linux/ftrace_event.h>
|
|
|
|
#include <asm/ptrace.h>
|
|
|
|
|
|
extern void syscall_regfunc(void);
|
|
extern void syscall_unregfunc(void);
|
|
|
|
DECLARE_TRACE_WITH_CALLBACK(syscall_enter,
|
|
TP_PROTO(struct pt_regs *regs, long id),
|
|
TP_ARGS(regs, id),
|
|
syscall_regfunc,
|
|
syscall_unregfunc
|
|
);
|
|
|
|
DECLARE_TRACE_WITH_CALLBACK(syscall_exit,
|
|
TP_PROTO(struct pt_regs *regs, long ret),
|
|
TP_ARGS(regs, ret),
|
|
syscall_regfunc,
|
|
syscall_unregfunc
|
|
);
|
|
|
|
/*
|
|
* A syscall entry in the ftrace syscalls array.
|
|
*
|
|
* @name: name of the syscall
|
|
* @nb_args: number of parameters it takes
|
|
* @types: list of types as strings
|
|
* @args: list of args as strings (args[i] matches types[i])
|
|
* @enter_id: associated ftrace enter event id
|
|
* @exit_id: associated ftrace exit event id
|
|
*/
|
|
struct syscall_metadata {
|
|
const char *name;
|
|
int nb_args;
|
|
const char **types;
|
|
const char **args;
|
|
int enter_id;
|
|
int exit_id;
|
|
};
|
|
|
|
#ifdef CONFIG_FTRACE_SYSCALLS
|
|
extern struct syscall_metadata *syscall_nr_to_meta(int nr);
|
|
extern int syscall_name_to_nr(char *name);
|
|
void set_syscall_enter_id(int num, int id);
|
|
void set_syscall_exit_id(int num, int id);
|
|
extern struct trace_event event_syscall_enter;
|
|
extern struct trace_event event_syscall_exit;
|
|
extern int reg_event_syscall_enter(void *ptr);
|
|
extern void unreg_event_syscall_enter(void *ptr);
|
|
extern int reg_event_syscall_exit(void *ptr);
|
|
extern void unreg_event_syscall_exit(void *ptr);
|
|
enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
|
|
enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
|
|
#endif
|
|
|
|
#endif /* _TRACE_SYSCALL_H */
|