[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / blackfin / include / asm / ptrace.h

/*
 * Copyright 2004-2008 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */
#ifndef _BFIN_PTRACE_H
#define _BFIN_PTRACE_H

#include <uapi/asm/ptrace.h>

#ifndef __ASSEMBLY__

/* user_mode returns true if only one bit is set in IPEND, other than the
   master interrupt enable.  */
#define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))

#define arch_has_single_step()	(1)
/* common code demands this function */
#define ptrace_disable(child) user_disable_single_step(child)

extern int is_user_addr_valid(struct task_struct *child,
			      unsigned long start, unsigned long len);

/*
 * Get the address of the live pt_regs for the specified task.
 * These are saved onto the top kernel stack when the process
 * is not running.
 *
 * Note: if a user thread is execve'd from kernel space, the
 * kernel stack will not be empty on entry to the kernel, so
 * ptracing these tasks will fail.
 */
#define task_pt_regs(task) \
	(struct pt_regs *) \
	    ((unsigned long)task_stack_page(task) + \
	     (THREAD_SIZE - sizeof(struct pt_regs)))

#include <asm-generic/ptrace.h>

#endif				/* __ASSEMBLY__ */
#endif				/* _BFIN_PTRACE_H */
Commit	Line	Data
96f1050d RG	1	/*
	2	* Copyright 2004-2008 Analog Devices Inc.
	3	*
	4	* Licensed under the GPL-2 or later.
	5	*/
1394f032 BW	6	#ifndef _BFIN_PTRACE_H
	7	#define _BFIN_PTRACE_H
	8
2ba36450	9	#include <uapi/asm/ptrace.h>
1394f032 BW	10
	11	#ifndef __ASSEMBLY__
	12
1394f032 BW	13	/* user_mode returns true if only one bit is set in IPEND, other than the
	14	master interrupt enable. */
	15	#define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1)))
1394f032	16
e8f263df	17	#define arch_has_single_step() (1)
e8f263df MF	18	/* common code demands this function */
	19	#define ptrace_disable(child) user_disable_single_step(child)
	20
99a5b287 SZ	21	extern int is_user_addr_valid(struct task_struct *child,
	22	unsigned long start, unsigned long len);
	23
e8f263df MF	24	/*
	25	* Get the address of the live pt_regs for the specified task.
	26	* These are saved onto the top kernel stack when the process
	27	* is not running.
	28	*
	29	* Note: if a user thread is execve'd from kernel space, the
	30	* kernel stack will not be empty on entry to the kernel, so
	31	* ptracing these tasks will fail.
	32	*/
	33	#define task_pt_regs(task) \
	34	(struct pt_regs *) \
	35	((unsigned long)task_stack_page(task) + \
	36	(THREAD_SIZE - sizeof(struct pt_regs)))
	37
82258c66 MF	38	#include <asm-generic/ptrace.h>
82258c66 MF	39
1394f032	40	#endif /* __ASSEMBLY__ */
1394f032	41	#endif /* _BFIN_PTRACE_H */