2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2001 - 2007 Tensilica Inc.
7 * Copyright (C) 2018 Cadence Design Systems Inc.
10 #ifndef _ASM_SYSCALL_H
11 #define _ASM_SYSCALL_H
13 #include <linux/err.h>
14 #include <asm/ptrace.h>
15 #include <uapi/linux/audit.h>
17 static inline int syscall_get_arch(struct task_struct *task)
19 return AUDIT_ARCH_XTENSA;
22 typedef void (*syscall_t)(void);
23 extern syscall_t sys_call_table[];
25 static inline long syscall_get_nr(struct task_struct *task,
31 static inline void syscall_rollback(struct task_struct *task,
37 static inline long syscall_get_error(struct task_struct *task,
40 /* 0 if syscall succeeded, otherwise -Errorcode */
41 return IS_ERR_VALUE(regs->areg[2]) ? regs->areg[2] : 0;
44 static inline long syscall_get_return_value(struct task_struct *task,
50 static inline void syscall_set_return_value(struct task_struct *task,
54 regs->areg[2] = (long) error ? error : val;
57 #define SYSCALL_MAX_ARGS 6
58 #define XTENSA_SYSCALL_ARGUMENT_REGS {6, 3, 4, 5, 8, 9}
60 static inline void syscall_get_arguments(struct task_struct *task,
64 static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;
67 for (i = 0; i < 6; ++i)
68 args[i] = regs->areg[reg[i]];
71 asmlinkage long xtensa_rt_sigreturn(void);
72 asmlinkage long xtensa_shmat(int, char __user *, int);
73 asmlinkage long xtensa_fadvise64_64(int, int,
74 unsigned long long, unsigned long long);