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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _TRACE_SYSCALL_H3#define _TRACE_SYSCALL_H4 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 syscall17 * @syscall_nr: number of the syscall18 * @nb_args: number of parameters it takes19 * @types: list of types as strings20 * @args: list of args as strings (args[i] matches types[i])21 * @enter_fields: list of fields for syscall_enter trace event22 * @enter_event: associated syscall_enter trace event23 * @exit_event: associated syscall_exit trace event24 */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 else43 clear_task_syscall_work(p, SYSCALL_TRACEPOINT);44}45#else46static inline void syscall_tracepoint_update(struct task_struct *p)47{48}49#endif50 51#endif /* _TRACE_SYSCALL_H */52