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61730c538f
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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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 <linux/compiler.h>
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#include <linux/linkage.h>
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#include <linux/types.h>
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#include <asm/isadep.h>
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#include <uapi/asm/ptrace.h>
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struct task_struct;
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extern int ptrace_getregs(struct task_struct *child, __s64 __user *data);
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extern int ptrace_setregs(struct task_struct *child, __s64 __user *data);
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extern int ptrace_getfpregs(struct task_struct *child, __u32 __user *data);
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extern int ptrace_setfpregs(struct task_struct *child, __u32 __user *data);
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extern int ptrace_get_watch_regs(struct task_struct *child,
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struct pt_watch_regs __user *addr);
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extern int ptrace_set_watch_regs(struct task_struct *child,
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struct pt_watch_regs __user *addr);
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/*
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* Does the process account for user or for system time?
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*/
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#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
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static inline int is_syscall_success(struct pt_regs *regs)
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{
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return !regs->regs[7];
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}
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static inline long regs_return_value(struct pt_regs *regs)
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{
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if (is_syscall_success(regs))
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return regs->regs[2];
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else
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return -regs->regs[2];
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}
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#define instruction_pointer(regs) ((regs)->cp0_epc)
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#define profile_pc(regs) instruction_pointer(regs)
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extern asmlinkage void syscall_trace_enter(struct pt_regs *regs);
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extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
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extern void die(const char *, struct pt_regs *) __noreturn;
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static inline void die_if_kernel(const char *str, struct pt_regs *regs)
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{
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if (unlikely(!user_mode(regs)))
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die(str, regs);
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}
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#endif /* _ASM_PTRACE_H */
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