42 lines
986 B
C
42 lines
986 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
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#ifndef __ASM_CSKY_PTRACE_H
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#define __ASM_CSKY_PTRACE_H
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#include <uapi/asm/ptrace.h>
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#include <asm/traps.h>
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#include <linux/types.h>
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#ifndef __ASSEMBLY__
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#define PS_S 0x80000000 /* Supervisor Mode */
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#define arch_has_single_step() (1)
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#define current_pt_regs() \
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({ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1; })
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#define user_stack_pointer(regs) ((regs)->usp)
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#define user_mode(regs) (!((regs)->sr & PS_S))
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#define instruction_pointer(regs) ((regs)->pc)
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#define profile_pc(regs) instruction_pointer(regs)
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static inline bool in_syscall(struct pt_regs const *regs)
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{
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return ((regs->sr >> 16) & 0xff) == VEC_TRAP0;
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}
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static inline void forget_syscall(struct pt_regs *regs)
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{
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regs->sr &= ~(0xff << 16);
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}
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static inline unsigned long regs_return_value(struct pt_regs *regs)
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{
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return regs->a0;
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}
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_CSKY_PTRACE_H */
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