callstack.h   [plain text]


/*
 * Copyright (c) 2011 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */

#ifndef __AP_CALLSTACK_H__
#define __AP_CALLSTACK_H__

#define MAX_CALLSTACK_FRAMES (128)

#define CALLSTACK_VALID     (1<<0)
#define CALLSTACK_DEFERRED  (1<<1)
#define CALLSTACK_64BIT     (1<<2)
#define CALLSTACK_KERNEL    (1<<3)
#define CALLSTACK_TRUNCATED (1<<4)

struct callstack
{
	uint32_t flags;
	uint32_t nframes;
	uint64_t frames[MAX_CALLSTACK_FRAMES];
};

struct kperf_context;

extern void kperf_kcallstack_sample( struct callstack *cs, struct kperf_context * );
extern void kperf_kcallstack_log( struct callstack *cs );

extern void kperf_ucallstack_sample( struct callstack *cs, struct kperf_context * );
extern int kperf_ucallstack_pend( struct kperf_context * );
extern void kperf_ucallstack_log( struct callstack *cs );


#endif /* __AP_CALLSTACK_H__ */