02a650e282
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42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* ptrace.h: ptrace() relevant definitions
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*
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* Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_PTRACE_H
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#define _ASM_PTRACE_H
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#include <asm/irq_regs.h>
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#include <uapi/asm/ptrace.h>
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#define in_syscall(regs) (((regs)->tbr & TBR_TT) == TBR_TT_TRAP0)
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#ifndef __ASSEMBLY__
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struct task_struct;
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/*
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* we dedicate GR28 to keeping a pointer to the current exception frame
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* - gr28 is destroyed on entry to the kernel from userspace
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*/
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register struct pt_regs *__frame asm("gr28");
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#define user_mode(regs) (!((regs)->psr & PSR_S))
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#define instruction_pointer(regs) ((regs)->pc)
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#define user_stack_pointer(regs) ((regs)->sp)
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#define current_pt_regs() (__frame)
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extern unsigned long user_stack(const struct pt_regs *);
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#define profile_pc(regs) ((regs)->pc)
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#define task_pt_regs(task) ((task)->thread.frame0)
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#define arch_has_single_step() (1)
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_PTRACE_H */
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