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#ifndef _PTRACE_COMPATIBILITY_H_
#define _PTRACE_COMPATIBILITY_H_
#include <linux/ptrace.h>
/* Older kernel's linux/ptrace.h don't define
* arch_has_single_step()/arch_has_block_step(). */
#ifndef arch_has_single_step
#include <linux/tracehook.h>
/**
* arch_has_single_step - does this CPU support user-mode single-step?
*
* If this is defined, then there must be function declarations or
* inlines for user_enable_single_step() and user_disable_single_step().
* arch_has_single_step() should evaluate to nonzero iff the machine
* supports instruction single-step for user mode.
* It can be a constant or it can test a CPU feature bit.
*/
#ifdef ARCH_HAS_SINGLE_STEP
#define arch_has_single_step() (ARCH_HAS_SINGLE_STEP)
#else
#define arch_has_single_step() (0)
#endif /* ARCH_HAS_SINGLE_STEP */
#endif /* arch_has_single_step */
#ifndef arch_has_block_step
/**
* arch_has_block_step - does this CPU support user-mode block-step?
*
* If this is defined, then there must be a function declaration or inline
* for user_enable_block_step(), and arch_has_single_step() must be defined
* too. arch_has_block_step() should evaluate to nonzero iff the machine
* supports step-until-branch for user mode. It can be a constant or it
* can test a CPU feature bit.
*/
#ifdef ARCH_HAS_BLOCK_STEP
#define arch_has_block_step() (ARCH_HAS_BLOCK_STEP)
#else
#define arch_has_block_step() (0)
#endif /* ARCH_HAS_BLOCK_STEP */
#endif /* arch_has_block_step */
#endif /* _PTRACE_COMPATIBILITY_H_ */
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