|
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-4.4.0-57/arch/unicore32/include/asm/ |
Upload File : |
/*
* linux/arch/unicore32/include/asm/ptrace.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* 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 __UNICORE_PTRACE_H__
#define __UNICORE_PTRACE_H__
#include <uapi/asm/ptrace.h>
#ifndef __ASSEMBLY__
#define user_mode(regs) \
(processor_mode(regs) == USER_MODE)
#define processor_mode(regs) \
((regs)->UCreg_asr & MODE_MASK)
#define interrupts_enabled(regs) \
(!((regs)->UCreg_asr & PSR_I_BIT))
#define fast_interrupts_enabled(regs) \
(!((regs)->UCreg_asr & PSR_R_BIT))
/* Are the current registers suitable for user mode?
* (used to maintain security in signal handlers)
*/
static inline int valid_user_regs(struct pt_regs *regs)
{
unsigned long mode = regs->UCreg_asr & MODE_MASK;
/*
* Always clear the R (REAL) bits
*/
regs->UCreg_asr &= ~(PSR_R_BIT);
if ((regs->UCreg_asr & PSR_I_BIT) == 0) {
if (mode == USER_MODE)
return 1;
}
/*
* Force ASR to something logical...
*/
regs->UCreg_asr &= PSR_f | USER_MODE;
return 0;
}
#define instruction_pointer(regs) ((regs)->UCreg_pc)
#define user_stack_pointer(regs) ((regs)->UCreg_sp)
#define profile_pc(regs) instruction_pointer(regs)
#endif /* __ASSEMBLY__ */
#endif