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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994, by Sun Microsytems, Inc.
*/
#ifndef _TNF_TRACE_H
#define _TNF_TRACE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/time.h>
#include <sys/tnf_probe.h>
#include <sys/thread.h>
#include <sys/processor.h>
#include "tnf_buf.h"
#include "tnf_types.h"
/*
* Minimum and default size of trace file
*/
#define TNF_TRACE_FILE_MIN (128 * 1024)
#define TNF_TRACE_FILE_DEFAULT (1 * 1024 * 1024)
/*
* Specification of index field of probe control block
*/
#define PROBE_INDEX_TYPE_MASK 0x3
#define PROBE_INDEX_MEM_PTR 0x0 /* index is a normal memory ptr */
#define PROBE_INDEX_FILE_PTR 0x1 /* index is a file abs ptr */
#define PROBE_INDEX_LOW_MASK 0xffff0000
#define PROBE_INDEX_SHIFT 16
#define PROBE_IS_FILE_PTR(x) \
(((x) & PROBE_INDEX_TYPE_MASK) == PROBE_INDEX_FILE_PTR)
#define ATTR_SEPARATOR ';'
#define VAL_SEPARATOR ' '
/*
* Flags in proc struct
*/
#define PROC_F_FILTER 0x1
#define PROC_IS_FILTER(pp) ((pp)->p_tnf_flags & PROC_F_FILTER)
#define PROC_FILTER_SET(pp) ((pp)->p_tnf_flags |= PROC_F_FILTER)
#define PROC_FILTER_CLR(pp) ((pp)->p_tnf_flags &= ~PROC_F_FILTER)
/*
* In-memory scheduling info, maintained per thread
*/
typedef struct {
tnf_record_p record_p;
tnf_uint32_t record_gen;
hrtime_t time_base;
processorid_t cpuid;
} tnf_schedule_t;
/*
* Per-thread tracing operations and state
*/
struct _tnf_ops {
char mode; /* allocation mode */
tnf_byte_lock_t busy; /* currently in a probe */
TNFW_B_WCB wcb; /* write control info */
tnf_schedule_t schedule; /* scheduling info */
};
/*
* File layout of a kernel schedule record
*/
typedef struct {
tnf_tag_t tag;
tnf_kthread_id_t tid;
tnf_lwpid_t lwpid;
tnf_pid_t pid;
/*
* time base should be on a double word boundary to avoid pads
*/
tnf_time_base_t time_base;
tnf_cpuid_t cpuid;
} tnf_schedule_prototype_t;
/*
* File layout of a probe (event tag) record
*/
typedef struct {
tnf_tag_t tag;
tnf_name_t name;
tnf_properties_t properties;
tnf_slot_types_t slot_types;
tnf_type_size_t type_size;
tnf_slot_names_t slot_names;
tnf_string_t string; /* XXX detail */
} tnf_probe_prototype_t;
/*
* Tag data variables
*/
extern tnf_tag_data_t *tnf_probe_type_tag_data;
extern tnf_tag_data_t *tnf_kernel_schedule_tag_data;
/*
*
*/
extern size_t tnf_trace_file_size;
/*
* Function prototypes
*/
/* Encoder functions */
tnf_record_p tnf_kernel_schedule(tnf_ops_t *, tnf_schedule_t *);
uintptr_t tnf_probe_tag(tnf_ops_t *, tnf_probe_control_t *);
/* Trace functions */
void *tnf_trace_alloc(tnf_ops_t *, tnf_probe_control_t *, tnf_probe_setup_t *);
void tnf_trace_commit(tnf_probe_setup_t *);
void tnf_trace_rollback(tnf_probe_setup_t *);
/* Trace control functions */
void tnf_trace_init(void);
void tnf_trace_on(void);
void tnf_trace_off(void);
#endif /* _TNF_TRACE_H */
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