[people/arne_f/kernel.git] / arch / parisc / include / asm / syscall.h

/* SPDX-License-Identifier: GPL-2.0 */
/* syscall.h */

#ifndef _ASM_PARISC_SYSCALL_H_
#define _ASM_PARISC_SYSCALL_H_

#include <uapi/linux/audit.h>
#include <linux/compat.h>
#include <linux/err.h>
#include <asm/ptrace.h>

#define NR_syscalls (__NR_Linux_syscalls)

static inline long syscall_get_nr(struct task_struct *tsk,
				  struct pt_regs *regs)
{
	return regs->gr[20];
}

static inline void syscall_get_arguments(struct task_struct *tsk,
					 struct pt_regs *regs, unsigned int i,
					 unsigned int n, unsigned long *args)
{
	BUG_ON(i);

	switch (n) {
	case 6:
		args[5] = regs->gr[21];
	case 5:
		args[4] = regs->gr[22];
	case 4:
		args[3] = regs->gr[23];
	case 3:
		args[2] = regs->gr[24];
	case 2:
		args[1] = regs->gr[25];
	case 1:
		args[0] = regs->gr[26];
	case 0:
		break;
	default:
		BUG();
	}
}

static inline long syscall_get_return_value(struct task_struct *task,
						struct pt_regs *regs)
{
	return regs->gr[28];
}

static inline void syscall_set_return_value(struct task_struct *task,
					    struct pt_regs *regs,
					    int error, long val)
{
	regs->gr[28] = error ? error : val;
}

static inline void syscall_rollback(struct task_struct *task,
				    struct pt_regs *regs)
{
	/* do nothing */
}

static inline int syscall_get_arch(void)
{
	int arch = AUDIT_ARCH_PARISC;
#ifdef CONFIG_64BIT
	if (!is_compat_task())
		arch = AUDIT_ARCH_PARISC64;
#endif
	return arch;
}
#endif /*_ASM_PARISC_SYSCALL_H_*/
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
40e03b68 KM	2	/* syscall.h */
	3
	4	#ifndef _ASM_PARISC_SYSCALL_H_
	5	#define _ASM_PARISC_SYSCALL_H_
	6
ce5d1128 EP	7	#include <uapi/linux/audit.h>
ce5d1128 EP	8	#include <linux/compat.h>
40e03b68 KM	9	#include <linux/err.h>
	10	#include <asm/ptrace.h>
	11
fc79168a HD	12	#define NR_syscalls (__NR_Linux_syscalls)
fc79168a HD	13
40e03b68 KM	14	static inline long syscall_get_nr(struct task_struct *tsk,
	15	struct pt_regs *regs)
	16	{
	17	return regs->gr[20];
	18	}
	19
	20	static inline void syscall_get_arguments(struct task_struct *tsk,
	21	struct pt_regs *regs, unsigned int i,
	22	unsigned int n, unsigned long *args)
	23	{
	24	BUG_ON(i);
	25
	26	switch (n) {
	27	case 6:
	28	args[5] = regs->gr[21];
	29	case 5:
	30	args[4] = regs->gr[22];
	31	case 4:
	32	args[3] = regs->gr[23];
	33	case 3:
	34	args[2] = regs->gr[24];
	35	case 2:
	36	args[1] = regs->gr[25];
	37	case 1:
	38	args[0] = regs->gr[26];
fc79168a	39	case 0:
40e03b68 KM	40	break;
	41	default:
	42	BUG();
	43	}
	44	}
	45
fc79168a HD	46	static inline long syscall_get_return_value(struct task_struct *task,
	47	struct pt_regs *regs)
	48	{
	49	return regs->gr[28];
	50	}
	51
910cd32e HD	52	static inline void syscall_set_return_value(struct task_struct *task,
	53	struct pt_regs *regs,
	54	int error, long val)
	55	{
	56	regs->gr[28] = error ? error : val;
	57	}
	58
	59	static inline void syscall_rollback(struct task_struct *task,
	60	struct pt_regs *regs)
	61	{
	62	/* do nothing */
	63	}
	64
ce5d1128 EP	65	static inline int syscall_get_arch(void)
	66	{
	67	int arch = AUDIT_ARCH_PARISC;
	68	#ifdef CONFIG_64BIT
	69	if (!is_compat_task())
	70	arch = AUDIT_ARCH_PARISC64;
	71	#endif
	72	return arch;
	73	}
40e03b68	74	#endif /_ASM_PARISC_SYSCALL_H_/