+++ /dev/null
-/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * @OSF_COPYRIGHT@
- */
-/*
- * Mach Operating System
- * Copyright (c) 1991,1990,1989 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.
- */
-
-/*
- */
-
-#ifndef _KERN_PROFILE_H
-#define _KERN_PROFILE_H
-
-#include <mach/boolean.h>
-#include <vm/vm_kern.h>
-
-#define NB_PROF_BUFFER 4 /* number of buffers servicing a */
-#define SIZE_PROF_BUFFER 200 /* size of a profil buffer (in natural_t) */
- /* -> at most 1 packet every 2 secs */
- /* profiled thread */
-
-struct prof_data {
- struct ipc_port *prof_port; /* where to send a full buffer */
-
- struct buffer {
- queue_chain_t p_list;
- natural_t *p_zone; /* points to the actual storage area */
- int p_index; /* next slot to be filled */
- int p_dropped; /* # dropped samples when full */
- boolean_t p_full; /* is the current buffer full ? */
- struct prof_data *p_prof; /* base to get prof_port */
- char p_wakeme; /* do wakeup when sent */
- } prof_area[NB_PROF_BUFFER];
-
- int prof_index; /* index of the buffer structure */
- /* currently in use */
-
-};
-
-typedef struct prof_data *prof_data_t;
-#define NULLPROFDATA ((prof_data_t) 0)
-typedef struct buffer *buffer_t;
-#define NULLPBUF ((buffer_t) 0)
-
-/* Macros */
-
-#define set_pbuf_nb(pbuf, nb) \
- (((nb) >= 0 && (nb) < NB_PROF_BUFFER) \
- ? (pbuf)->prof_index = (nb), 1 \
- : 0)
-
-
-#define get_pbuf_nb(pbuf) \
- (pbuf)->prof_index
-
-
-/* MACRO set_pbuf_value
-**
-** enters the value 'val' in the buffer 'pbuf' and returns the following
-** indications: 0: means that a fatal error occurred: the buffer was full
-** (it hasn't been sent yet)
-** 1: means that a value has been inserted successfully
-** 2: means that we'v just entered the last value causing
-** the current buffer to be full.(must switch to
-** another buffer and signal the sender to send it)
-*/
-
-#if MACH_PROF
-
-#define set_pbuf_value(pbuf, val) \
- { \
- register buffer_t a = &((pbuf)->prof_area[(pbuf)->prof_index]); \
- register int i ;\
- register boolean_t f = a->p_full; \
- \
- if (f == TRUE ) {\
- a->p_dropped++; \
- *(val) = 0L; \
- } else { \
- i = a->p_index++; \
- a->p_zone[i] = *(val); \
- if (i == SIZE_PROF_BUFFER-1) { \
- a->p_full = TRUE; \
- *(val) = 2; \
- } \
- else \
- *(val) = 1; \
- } \
- }
-
-#define reset_pbuf_area(pbuf) \
- { \
- int i; \
- (pbuf)->prof_index = ((pbuf)->prof_index + 1) % NB_PROF_BUFFER; \
- i = (pbuf)->prof_index; \
- (pbuf)->prof_area[i].p_index = 0; \
- (pbuf)->prof_area[i].p_dropped = 0; \
- }
-
-#endif /* MACH_PROF */
-
-/*
-** Global variable: the head of the queue of buffers to send
-** It is a queue with locks (uses macros from queue.h) and it
-** is shared by hardclock() and the sender_thread()
-*/
-
-mpqueue_head_t prof_queue;
-
-extern void profile(
- natural_t pc, /* program counter */
- prof_data_t pbuf); /* trace/prof data area */
-
-#if MACH_PROF
-
-#define task_prof_init(task) \
- task->task_profiled = FALSE; \
- task->profil_buffer = NULLPROFDATA;
-
-#define thread_prof_init(thread, task) \
- thread->profiled = task->profiled; \
- thread->profil_buffer = task->profil_buffer;
-
-#define task_prof_deallocate(task) \
- if (task->profil_buffer) \
- task_sample(task, MACH_PORT_NULL); \
-
-#define thread_prof_deallocate(thread) \
- if (thread->profiled_own && thread->profil_buffer) \
- thread_sample(thread, MACH_PORT_NULL); \
-
-extern kern_return_t thread_sample(thread_t, ipc_port_t);
-extern kern_return_t task_sample(task_t, ipc_port_t);
-
-#else /* !MACH_PROT */
-
-#define task_prof_init(task)
-#define thread_prof_init(thread, task)
-#define task_prof_deallocate(task)
-#define thread_prof_deallocate(thread)
-
-#endif /* !MACH_PROF */
-
-#endif /* _KERN_PROFILE_H */
projects / apple / xnu.git / blobdiff