Release 4.18 arch/nds32/include/asm/ptrace.h

// 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;
}

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static inline void forget_syscall(struct pt_regs *regs)
{
	regs->syscallno = NO_SYSCALL;
}
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static inline unsigned long regs_return_value(struct pt_regs *regs)
{
	return regs->uregs[0];
}
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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
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Directory: arch/nds32/include/asm

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