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/* 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