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/* 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_set_nr(struct task_struct *tsk,
struct pt_regs *regs,
int nr)
{
regs->gr[20] = nr;
}
static inline void syscall_get_arguments(struct task_struct *tsk,
struct pt_regs *regs,
unsigned long *args)
{
args[5] = regs->gr[21];
args[4] = regs->gr[22];
args[3] = regs->gr[23];
args[2] = regs->gr[24];
args[1] = regs->gr[25];
args[0] = regs->gr[26];
}
static inline void syscall_set_arguments(struct task_struct *tsk,
struct pt_regs *regs,
unsigned long *args)
{
regs->gr[21] = args[5];
regs->gr[22] = args[4];
regs->gr[23] = args[3];
regs->gr[24] = args[2];
regs->gr[25] = args[1];
regs->gr[26] = args[0];
}
static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
unsigned long error = regs->gr[28];
return IS_ERR_VALUE(error) ? error : 0;
}
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(struct task_struct *task)
{
int arch = AUDIT_ARCH_PARISC;
#ifdef CONFIG_64BIT
if (!__is_compat_task(task))
arch = AUDIT_ARCH_PARISC64;
#endif
return arch;
}
#endif /*_ASM_PARISC_SYSCALL_H_*/
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