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Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /usr/src/linux-headers-4.4.0-87-generic/arch/arc/include/asm/ |
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/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _ASM_ARC_SYSCALL_H
#define _ASM_ARC_SYSCALL_H 1
#include <linux/err.h>
#include <linux/sched.h>
#include <asm/unistd.h>
#include <asm/ptrace.h> /* in_syscall() */
static inline long
syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
{
if (user_mode(regs) && in_syscall(regs))
return regs->r8;
else
return -1;
}
static inline void
syscall_rollback(struct task_struct *task, struct pt_regs *regs)
{
regs->r0 = regs->orig_r0;
}
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->r0) ? regs->r0 : 0;
}
static inline long
syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
{
return regs->r0;
}
static inline void
syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
int error, long val)
{
regs->r0 = (long) error ?: val;
}
/*
* @i: argument index [0,5]
* @n: number of arguments; n+i must be [1,6].
*/
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
{
unsigned long *inside_ptregs = &(regs->r0);
inside_ptregs -= i;
BUG_ON((i + n) > 6);
while (n--) {
args[i++] = (*inside_ptregs);
inside_ptregs--;
}
}
#endif