mirror of https://gitee.com/openkylin/linux.git
78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright (C) 2005-2017 Andes Technology Corporation
|
|
|
|
#ifndef __ASM_NDS32_PTRACE_H
|
|
#define __ASM_NDS32_PTRACE_H
|
|
|
|
#include <uapi/asm/ptrace.h>
|
|
|
|
/*
|
|
* If pt_regs.syscallno == NO_SYSCALL, then the thread is not executing
|
|
* a syscall -- i.e., its most recent entry into the kernel from
|
|
* userspace was not via syscall, or otherwise a tracer cancelled the
|
|
* syscall.
|
|
*
|
|
* This must have the value -1, for ABI compatibility with ptrace etc.
|
|
*/
|
|
#define NO_SYSCALL (-1)
|
|
#ifndef __ASSEMBLY__
|
|
#include <linux/types.h>
|
|
|
|
struct pt_regs {
|
|
union {
|
|
struct user_pt_regs user_regs;
|
|
struct {
|
|
long uregs[26];
|
|
long fp;
|
|
long gp;
|
|
long lp;
|
|
long sp;
|
|
long ipc;
|
|
#if defined(CONFIG_HWZOL)
|
|
long lb;
|
|
long le;
|
|
long lc;
|
|
#else
|
|
long dummy[3];
|
|
#endif
|
|
long syscallno;
|
|
};
|
|
};
|
|
long orig_r0;
|
|
long ir0;
|
|
long ipsw;
|
|
long pipsw;
|
|
long pipc;
|
|
long pp0;
|
|
long pp1;
|
|
long fucop_ctl;
|
|
long osp;
|
|
};
|
|
|
|
static inline bool in_syscall(struct pt_regs const *regs)
|
|
{
|
|
return regs->syscallno != NO_SYSCALL;
|
|
}
|
|
|
|
static inline void forget_syscall(struct pt_regs *regs)
|
|
{
|
|
regs->syscallno = NO_SYSCALL;
|
|
}
|
|
static inline unsigned long regs_return_value(struct pt_regs *regs)
|
|
{
|
|
return regs->uregs[0];
|
|
}
|
|
extern void show_regs(struct pt_regs *);
|
|
/* Avoid circular header include via sched.h */
|
|
struct task_struct;
|
|
|
|
#define arch_has_single_step() (1)
|
|
#define user_mode(regs) (((regs)->ipsw & PSW_mskPOM) == 0)
|
|
#define interrupts_enabled(regs) (!!((regs)->ipsw & PSW_mskGIE))
|
|
#define user_stack_pointer(regs) ((regs)->sp)
|
|
#define instruction_pointer(regs) ((regs)->ipc)
|
|
#define profile_pc(regs) instruction_pointer(regs)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif
|