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/*
* Mach Operating System
* Copyright (c) 1993 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* HISTORY
* $Log: pc_sample.h,v $
* Revision 1.1.1.1 1996/10/30 01:38:13 thomas
* Imported from UK22
*
* Revision 1.1 1994/11/02 02:24:15 law
* Initial revision
*
* Revision 2.2 93/11/17 19:06:01 dbg
* Moved kernel internal definitions here from mach/pc_sample.h.
* [93/09/24 dbg]
*
*/
/*
* Kernel definitions for PC sampling.
*/
#ifndef _KERN_PC_SAMPLE_H_
#define _KERN_PC_SAMPLE_H_
#include <mach/pc_sample.h>
#include <mach/machine/vm_types.h>
#include <kern/kern_types.h>
#include <kern/macro_help.h>
/*
* Control structure for sampling, included in
* threads and tasks. If sampletypes is 0, no
* sampling is done.
*/
struct sample_control {
vm_offset_t buffer;
unsigned int seqno;
sampled_pc_flavor_t sampletypes;
};
typedef struct sample_control sample_control_t;
/*
* Routines to take PC samples.
*/
extern void take_pc_sample(
thread_t thread,
sample_control_t *cp,
sampled_pc_flavor_t flavor);
/*
* Macro to do quick flavor check for sampling,
* on both threads and tasks.
*/
#define take_pc_sample_macro(thread, flavor) \
MACRO_BEGIN \
task_t task; \
\
if ((thread)->pc_sample.sampletypes & (flavor)) \
take_pc_sample((thread), &(thread)->pc_sample, (flavor)); \
\
task = (thread)->task; \
if (task->pc_sample.sampletypes & (flavor)) \
take_pc_sample((thread), &task->pc_sample, (flavor)); \
MACRO_END
#endif /* _KERN_PC_SAMPLE_H_ */
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