| dtrace_subr.c (302408) | dtrace_subr.c (315011) |
|---|---|
| 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: stable/11/sys/cddl/dev/dtrace/i386/dtrace_subr.c 299746 2016-05-14 18:22:52Z jhb $ | 22 * $FreeBSD: stable/11/sys/cddl/dev/dtrace/i386/dtrace_subr.c 315011 2017-03-10 18:51:47Z markj $ |
| 23 * 24 */ 25/* 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30/* --- 6 unchanged lines hidden (view full) --- 37#include <sys/cpuset.h> 38#include <sys/kernel.h> 39#include <sys/malloc.h> 40#include <sys/kmem.h> 41#include <sys/smp.h> 42#include <sys/dtrace_impl.h> 43#include <sys/dtrace_bsd.h> 44#include <machine/clock.h> | 23 * 24 */ 25/* 26 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30/* --- 6 unchanged lines hidden (view full) --- 37#include <sys/cpuset.h> 38#include <sys/kernel.h> 39#include <sys/malloc.h> 40#include <sys/kmem.h> 41#include <sys/smp.h> 42#include <sys/dtrace_impl.h> 43#include <sys/dtrace_bsd.h> 44#include <machine/clock.h> |
| 45#include <machine/cpufunc.h> |
|
| 45#include <machine/frame.h> | 46#include <machine/frame.h> |
| 47#include <machine/psl.h> |
|
| 46#include <vm/pmap.h> 47 48extern uintptr_t kernelbase; 49 50extern void dtrace_getnanotime(struct timespec *tsp); 51 52int dtrace_invop(uintptr_t, struct trapframe *, uintptr_t); 53 --- 327 unchanged lines hidden (view full) --- 381 382 return (current_time.tv_sec * 1000000000ULL + current_time.tv_nsec); 383} 384 385/* Function to handle DTrace traps during probes. See i386/i386/trap.c */ 386int 387dtrace_trap(struct trapframe *frame, u_int type) 388{ | 48#include <vm/pmap.h> 49 50extern uintptr_t kernelbase; 51 52extern void dtrace_getnanotime(struct timespec *tsp); 53 54int dtrace_invop(uintptr_t, struct trapframe *, uintptr_t); 55 --- 327 unchanged lines hidden (view full) --- 383 384 return (current_time.tv_sec * 1000000000ULL + current_time.tv_nsec); 385} 386 387/* Function to handle DTrace traps during probes. See i386/i386/trap.c */ 388int 389dtrace_trap(struct trapframe *frame, u_int type) 390{ |
| 391 uint16_t nofault; 392 |
|
| 389 /* 390 * A trap can occur while DTrace executes a probe. Before 391 * executing the probe, DTrace blocks re-scheduling and sets 392 * a flag in its per-cpu flags to indicate that it doesn't 393 * want to fault. On returning from the probe, the no-fault 394 * flag is cleared and finally re-scheduling is enabled. 395 * 396 * Check if DTrace has enabled 'no-fault' mode: 397 */ | 393 /* 394 * A trap can occur while DTrace executes a probe. Before 395 * executing the probe, DTrace blocks re-scheduling and sets 396 * a flag in its per-cpu flags to indicate that it doesn't 397 * want to fault. On returning from the probe, the no-fault 398 * flag is cleared and finally re-scheduling is enabled. 399 * 400 * Check if DTrace has enabled 'no-fault' mode: 401 */ |
| 398 if ((cpu_core[curcpu].cpuc_dtrace_flags & CPU_DTRACE_NOFAULT) != 0) { | 402 sched_pin(); 403 nofault = cpu_core[curcpu].cpuc_dtrace_flags & CPU_DTRACE_NOFAULT; 404 sched_unpin(); 405 if (nofault) { 406 KASSERT((read_eflags() & PSL_I) == 0, ("interrupts enabled")); 407 |
| 399 /* 400 * There are only a couple of trap types that are expected. 401 * All the rest will be handled in the usual way. 402 */ 403 switch (type) { 404 /* General protection fault. */ 405 case T_PROTFLT: 406 /* Flag an illegal operation. */ --- 29 unchanged lines hidden --- | 408 /* 409 * There are only a couple of trap types that are expected. 410 * All the rest will be handled in the usual way. 411 */ 412 switch (type) { 413 /* General protection fault. */ 414 case T_PROTFLT: 415 /* Flag an illegal operation. */ --- 29 unchanged lines hidden --- |