| dtrace_subr.c (233409) | dtrace_subr.c (268600) |
|---|---|
| 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * --- 5 unchanged lines hidden (view full) --- 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * | 1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * --- 5 unchanged lines hidden (view full) --- 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 * |
| 22 * $FreeBSD: head/sys/cddl/dev/dtrace/mips/dtrace_subr.c 233409 2012-03-24 05:14:37Z gonzo $ | 22 * $FreeBSD: head/sys/cddl/dev/dtrace/mips/dtrace_subr.c 268600 2014-07-14 04:38:17Z markj $ |
| 23 * 24 */ 25/* 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30#include <sys/cdefs.h> | 23 * 24 */ 25/* 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30#include <sys/cdefs.h> |
| 31__FBSDID("$FreeBSD: head/sys/cddl/dev/dtrace/mips/dtrace_subr.c 233409 2012-03-24 05:14:37Z gonzo $"); | 31__FBSDID("$FreeBSD: head/sys/cddl/dev/dtrace/mips/dtrace_subr.c 268600 2014-07-14 04:38:17Z markj $"); |
| 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/types.h> 36#include <sys/kernel.h> 37#include <sys/malloc.h> 38#include <sys/kmem.h> 39#include <sys/smp.h> --- 92 unchanged lines hidden (view full) --- 132 133 getnanotime(&curtime); 134 135 return (curtime.tv_sec * 1000000000UL + curtime.tv_nsec); 136} 137 138/* Function to handle DTrace traps during probes. See amd64/amd64/trap.c */ 139int | 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/types.h> 36#include <sys/kernel.h> 37#include <sys/malloc.h> 38#include <sys/kmem.h> 39#include <sys/smp.h> --- 92 unchanged lines hidden (view full) --- 132 133 getnanotime(&curtime); 134 135 return (curtime.tv_sec * 1000000000UL + curtime.tv_nsec); 136} 137 138/* Function to handle DTrace traps during probes. See amd64/amd64/trap.c */ 139int |
| 140dtrace_trap(struct trapframe *frame, u_int type) | 140dtrace_trap(struct trapframe *frame) |
| 141{ | 141{ |
| 142 u_int type; 143 144 type = (trapframe->cause & MIPS_CR_EXC_CODE) >> MIPS_CR_EXC_CODE_SHIFT; 145 |
|
| 142 /* 143 * A trap can occur while DTrace executes a probe. Before 144 * executing the probe, DTrace blocks re-scheduling and sets | 146 /* 147 * A trap can occur while DTrace executes a probe. Before 148 * executing the probe, DTrace blocks re-scheduling and sets |
| 145 * a flag in it's per-cpu flags to indicate that it doesn't | 149 * a flag in its per-cpu flags to indicate that it doesn't |
| 146 * want to fault. On returning from the probe, the no-fault 147 * flag is cleared and finally re-scheduling is enabled. 148 * 149 * Check if DTrace has enabled 'no-fault' mode: | 150 * want to fault. On returning from the probe, the no-fault 151 * flag is cleared and finally re-scheduling is enabled. 152 * 153 * Check if DTrace has enabled 'no-fault' mode: |
| 150 * | |
| 151 */ 152 if ((cpu_core[curcpu].cpuc_dtrace_flags & CPU_DTRACE_NOFAULT) != 0) { 153 /* 154 * There are only a couple of trap types that are expected. 155 * All the rest will be handled in the usual way. 156 */ 157 switch (type) { 158 /* Page fault. */ --- 45 unchanged lines hidden --- | 154 */ 155 if ((cpu_core[curcpu].cpuc_dtrace_flags & CPU_DTRACE_NOFAULT) != 0) { 156 /* 157 * There are only a couple of trap types that are expected. 158 * All the rest will be handled in the usual way. 159 */ 160 switch (type) { 161 /* Page fault. */ --- 45 unchanged lines hidden --- |