[lttng-modules.git] / wrapper / syscall.h

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * wrapper/syscall.h
 *
 * wrapper around asm/syscall.h.
 *
 * Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
 */

#ifndef _LTTNG_WRAPPER_SYSCALL_H
#define _LTTNG_WRAPPER_SYSCALL_H

#include <asm/syscall.h>
#include <lttng/kernel-version.h>

#define LTTNG_SYSCALL_NR_ARGS 6

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))

#define lttng_syscall_get_arguments(task, regs, args) \
	syscall_get_arguments(task, regs, args)

#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0) */

static inline
void lttng_syscall_get_arguments(struct task_struct *task,
		struct pt_regs *regs, unsigned long *args)
{
	syscall_get_arguments(task, regs, 0, LTTNG_SYSCALL_NR_ARGS, args);
}

#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0) */

#endif /* _LTTNG_WRAPPER_SYSCALL_H */
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
1b7b9c65 MJ	2	*
	3	* wrapper/syscall.h
	4	*
	5	* wrapper around asm/syscall.h.
	6	*
	7	* Copyright (C) 2019 Michael Jeanson <mjeanson@efficios.com>
	8	*/
	9
	10	#ifndef _LTTNG_WRAPPER_SYSCALL_H
	11	#define _LTTNG_WRAPPER_SYSCALL_H
	12
	13	#include <asm/syscall.h>
2df37e95	14	#include <lttng/kernel-version.h>
1b7b9c65 MJ	15
	16	#define LTTNG_SYSCALL_NR_ARGS 6
	17
	18	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
	19
	20	#define lttng_syscall_get_arguments(task, regs, args) \
	21	syscall_get_arguments(task, regs, args)
	22
	23	#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0) */
	24
	25	static inline
	26	void lttng_syscall_get_arguments(struct task_struct *task,
	27	struct pt_regs regs, unsigned long args)
	28	{
	29	syscall_get_arguments(task, regs, 0, LTTNG_SYSCALL_NR_ARGS, args);
	30	}
	31
	32	#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0) */
	33
	34	#endif /* _LTTNG_WRAPPER_SYSCALL_H */