syscall.h (1317B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _TRACE_SYSCALL_H 3#define _TRACE_SYSCALL_H 4 5#include <linux/tracepoint.h> 6#include <linux/unistd.h> 7#include <linux/trace_events.h> 8#include <linux/thread_info.h> 9 10#include <asm/ptrace.h> 11 12 13/* 14 * A syscall entry in the ftrace syscalls array. 15 * 16 * @name: name of the syscall 17 * @syscall_nr: number of the syscall 18 * @nb_args: number of parameters it takes 19 * @types: list of types as strings 20 * @args: list of args as strings (args[i] matches types[i]) 21 * @enter_fields: list of fields for syscall_enter trace event 22 * @enter_event: associated syscall_enter trace event 23 * @exit_event: associated syscall_exit trace event 24 */ 25struct syscall_metadata { 26 const char *name; 27 int syscall_nr; 28 int nb_args; 29 const char **types; 30 const char **args; 31 struct list_head enter_fields; 32 33 struct trace_event_call *enter_event; 34 struct trace_event_call *exit_event; 35}; 36 37#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) 38static inline void syscall_tracepoint_update(struct task_struct *p) 39{ 40 if (test_syscall_work(SYSCALL_TRACEPOINT)) 41 set_task_syscall_work(p, SYSCALL_TRACEPOINT); 42 else 43 clear_task_syscall_work(p, SYSCALL_TRACEPOINT); 44} 45#else 46static inline void syscall_tracepoint_update(struct task_struct *p) 47{ 48} 49#endif 50 51#endif /* _TRACE_SYSCALL_H */