/* * This file is subject to the terms and conditions of the GNU General Public * License.  See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2001 - 2007 Tensilica Inc. * Copyright (C) 2018 Cadence Design Systems Inc. */ #ifndef _ASM_SYSCALL_H#define _ASM_SYSCALL_H #include <linux/err.h>#include <asm/ptrace.h>#include <uapi/linux/audit.h> static inline int syscall_get_arch(struct task_struct *task){	return AUDIT_ARCH_XTENSA;} typedef void (*syscall_t)(void);extern syscall_t sys_call_table[]; static inline long syscall_get_nr(struct task_struct *task,				  struct pt_regs *regs){	return regs->syscall;} static inline void syscall_set_nr(struct task_struct *task,				  struct pt_regs *regs,				  int nr){	regs->syscall = nr;} static inline void syscall_rollback(struct task_struct *task,				    struct pt_regs *regs){	/* Do nothing. */} static inline long syscall_get_error(struct task_struct *task,				     struct pt_regs *regs){	/* 0 if syscall succeeded, otherwise -Errorcode */	return IS_ERR_VALUE(regs->areg[2]) ? regs->areg[2] : 0;} static inline long syscall_get_return_value(struct task_struct *task,					    struct pt_regs *regs){	return regs->areg[2];} static inline void syscall_set_return_value(struct task_struct *task,					    struct pt_regs *regs,					    int error, long val){	regs->areg[2] = (long) error ? error : val;} #define XTENSA_SYSCALL_ARGUMENT_REGS {6, 3, 4, 5, 8, 9} static inline void syscall_get_arguments(struct task_struct *task,					 struct pt_regs *regs,					 unsigned long *args){	static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;	unsigned int i; 	for (i = 0; i < 6; ++i)		args[i] = regs->areg[reg[i]];} static inline void syscall_set_arguments(struct task_struct *task,					 struct pt_regs *regs,					 const unsigned long *args){	static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;	unsigned int i; 	for (i = 0; i < 6; ++i)		regs->areg[reg[i]] = args[i];} asmlinkage long xtensa_rt_sigreturn(void);asmlinkage long xtensa_shmat(int, char __user *, int);asmlinkage long xtensa_fadvise64_64(int, int,				    unsigned long long, unsigned long long); #endif