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/*
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* Copyright 2001-2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* eventFilter
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*
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* This module handles event filteration and the enabling/disabling
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* of the corresponding events. Used for filters on JDI EventRequests
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* and also internal requests. Our data is in a private hidden section
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* of the HandlerNode's data. See comment for enclosing
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* module eventHandler.
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*/
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#include "util.h"
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#include "eventFilter.h"
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#include "eventFilterRestricted.h"
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#include "eventHandlerRestricted.h"
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#include "stepControl.h"
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#include "threadControl.h"
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#include "SDE.h"
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typedef struct ClassFilter {
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jclass clazz;
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} ClassFilter;
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typedef struct LocationFilter {
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jclass clazz;
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jmethodID method;
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jlocation location;
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} LocationFilter;
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typedef struct ThreadFilter {
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jthread thread;
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} ThreadFilter;
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typedef struct CountFilter {
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jint count;
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} CountFilter;
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typedef struct ConditionalFilter {
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jint exprID;
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} ConditionalFilter;
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typedef struct FieldFilter {
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jclass clazz;
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jfieldID field;
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} FieldFilter;
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typedef struct ExceptionFilter {
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jclass exception;
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jboolean caught;
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jboolean uncaught;
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} ExceptionFilter;
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typedef struct InstanceFilter {
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jobject instance;
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} InstanceFilter;
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typedef struct StepFilter {
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jint size;
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jint depth;
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jthread thread;
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} StepFilter;
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typedef struct MatchFilter {
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char *classPattern;
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} MatchFilter;
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typedef struct SourceNameFilter {
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char *sourceNamePattern;
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} SourceNameFilter;
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typedef struct Filter_ {
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jbyte modifier;
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union {
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struct ClassFilter ClassOnly;
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struct LocationFilter LocationOnly;
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struct ThreadFilter ThreadOnly;
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struct CountFilter Count;
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struct ConditionalFilter Conditional;
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struct FieldFilter FieldOnly;
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struct ExceptionFilter ExceptionOnly;
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struct InstanceFilter InstanceOnly;
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struct StepFilter Step;
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struct MatchFilter ClassMatch;
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struct MatchFilter ClassExclude;
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struct SourceNameFilter SourceNameOnly;
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} u;
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} Filter;
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/* The filters array is allocated to the specified filterCount.
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* Theoretically, some compiler could do range checking on this
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* array - so, we define it to have a ludicrously large size so
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* that this range checking won't get upset.
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*
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* The actual allocated number of bytes is computed using the
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* offset of "filters" and so is not effected by this number.
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*/
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#define MAX_FILTERS 10000
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typedef struct EventFilters_ {
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jint filterCount;
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Filter filters[MAX_FILTERS];
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} EventFilters;
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typedef struct EventFilterPrivate_HandlerNode_ {
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EventHandlerRestricted_HandlerNode not_for_us;
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EventFilters ef;
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} EventFilterPrivate_HandlerNode;
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/**
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* The following macros extract filter info (EventFilters) from private
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* data at the end of a HandlerNode
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*/
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#define EVENT_FILTERS(node) (&(((EventFilterPrivate_HandlerNode*)(void*)node)->ef))
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#define FILTER_COUNT(node) (EVENT_FILTERS(node)->filterCount)
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#define FILTERS_ARRAY(node) (EVENT_FILTERS(node)->filters)
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#define FILTER(node,index) ((FILTERS_ARRAY(node))[index])
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#define NODE_EI(node) (node->ei)
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/***** filter set-up / destruction *****/
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/**
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* Allocate a HandlerNode.
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* We do it because eventHandler doesn't know how big to make it.
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*/
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HandlerNode *
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eventFilterRestricted_alloc(jint filterCount)
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{
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/*LINTED*/
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size_t size = offsetof(EventFilterPrivate_HandlerNode, ef) +
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offsetof(EventFilters, filters) +
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(filterCount * (int)sizeof(Filter));
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HandlerNode *node = jvmtiAllocate((jint)size);
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if (node != NULL) {
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int i;
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Filter *filter;
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(void)memset(node, 0, size);
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FILTER_COUNT(node) = filterCount;
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/* Initialize all modifiers
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*/
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for (i = 0, filter = FILTERS_ARRAY(node);
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i < filterCount;
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i++, filter++) {
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filter->modifier = JDWP_REQUEST_NONE;
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}
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}
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return node;
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}
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/**
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* Free up global refs held by the filter.
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* free things up at the JNI level if needed.
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*/
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static jvmtiError
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clearFilters(HandlerNode *node)
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{
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JNIEnv *env = getEnv();
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jint i;
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jvmtiError error = JVMTI_ERROR_NONE;
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Filter *filter = FILTERS_ARRAY(node);
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for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
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switch (filter->modifier) {
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case JDWP_REQUEST_MODIFIER(ThreadOnly):
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if ( filter->u.ThreadOnly.thread != NULL ) {
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tossGlobalRef(env, &(filter->u.ThreadOnly.thread));
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}
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break;
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case JDWP_REQUEST_MODIFIER(LocationOnly):
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tossGlobalRef(env, &(filter->u.LocationOnly.clazz));
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break;
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case JDWP_REQUEST_MODIFIER(FieldOnly):
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tossGlobalRef(env, &(filter->u.FieldOnly.clazz));
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break;
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case JDWP_REQUEST_MODIFIER(ExceptionOnly):
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if ( filter->u.ExceptionOnly.exception != NULL ) {
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tossGlobalRef(env, &(filter->u.ExceptionOnly.exception));
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}
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break;
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case JDWP_REQUEST_MODIFIER(InstanceOnly):
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if ( filter->u.InstanceOnly.instance != NULL ) {
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tossGlobalRef(env, &(filter->u.InstanceOnly.instance));
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}
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break;
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case JDWP_REQUEST_MODIFIER(ClassOnly):
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tossGlobalRef(env, &(filter->u.ClassOnly.clazz));
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break;
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case JDWP_REQUEST_MODIFIER(ClassMatch):
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jvmtiDeallocate(filter->u.ClassMatch.classPattern);
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break;
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case JDWP_REQUEST_MODIFIER(ClassExclude):
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jvmtiDeallocate(filter->u.ClassExclude.classPattern);
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break;
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case JDWP_REQUEST_MODIFIER(Step): {
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jthread thread = filter->u.Step.thread;
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error = stepControl_endStep(thread);
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if (error == JVMTI_ERROR_NONE) {
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tossGlobalRef(env, &(filter->u.Step.thread));
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}
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break;
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}
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}
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}
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if (error == JVMTI_ERROR_NONE) {
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FILTER_COUNT(node) = 0; /* blast so we don't clear again */
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}
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return error;
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}
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/***** filtering *****/
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/*
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* Match a string against a wildcard
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* string pattern.
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*/
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static jboolean
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patternStringMatch(char *classname, const char *pattern)
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{
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int pattLen;
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int compLen;
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char *start;
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int offset;
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if ( pattern==NULL || classname==NULL ) {
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return JNI_FALSE;
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}
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pattLen = (int)strlen(pattern);
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if ((pattern[0] != '*') && (pattern[pattLen-1] != '*')) {
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/* An exact match is required when there is no *: bug 4331522 */
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return strcmp(pattern, classname) == 0;
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} else {
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compLen = pattLen - 1;
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offset = (int)strlen(classname) - compLen;
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if (offset < 0) {
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return JNI_FALSE;
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} else {
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if (pattern[0] == '*') {
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pattern++;
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start = classname + offset;
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} else {
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start = classname;
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}
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return strncmp(pattern, start, compLen) == 0;
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}
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}
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}
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/* Return the object instance in which the event occurred */
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/* Return NULL if static or if an error occurs */
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static jobject
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eventInstance(EventInfo *evinfo)
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{
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jobject object = NULL;
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jthread thread ;
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jmethodID method ;
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jint modifiers = 0;
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jvmtiError error;
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switch (evinfo->ei) {
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case EI_SINGLE_STEP:
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case EI_BREAKPOINT:
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case EI_FRAME_POP:
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case EI_METHOD_ENTRY:
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case EI_METHOD_EXIT:
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case EI_EXCEPTION:
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case EI_EXCEPTION_CATCH:
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297 |
case EI_MONITOR_CONTENDED_ENTER:
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298 |
case EI_MONITOR_CONTENDED_ENTERED:
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299 |
case EI_MONITOR_WAIT:
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case EI_MONITOR_WAITED:
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thread = evinfo->thread;
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method = evinfo->method;
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break;
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case EI_FIELD_ACCESS:
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305 |
case EI_FIELD_MODIFICATION:
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object = evinfo->object;
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307 |
return object;
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308 |
default:
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return object; /* NULL */
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310 |
}
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311 |
|
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312 |
error = methodModifiers(method, &modifiers);
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313 |
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314 |
/* fail if error or static (0x8) */
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315 |
if (error == JVMTI_ERROR_NONE && thread!=NULL && (modifiers & 0x8) == 0) {
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316 |
FrameNumber fnum = 0;
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317 |
/* get slot zero object "this" */
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318 |
error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalObject)
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319 |
(gdata->jvmti, thread, fnum, 0, &object);
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320 |
if (error != JVMTI_ERROR_NONE)
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321 |
object = NULL;
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322 |
}
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323 |
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324 |
return object;
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325 |
}
|
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326 |
|
|
327 |
/*
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328 |
* Determine if this event is interesting to this handler.
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329 |
* Do so by checking each of the handler's filters.
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330 |
* Return false if any of the filters fail,
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331 |
* true if the handler wants this event.
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332 |
* Anyone modifying this function should check
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333 |
* eventFilterRestricted_passesUnloadFilter and
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334 |
* eventFilter_predictFiltering as well.
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|
335 |
*
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|
336 |
* If shouldDelete is returned true, a count filter has expired
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337 |
* and the corresponding node should be deleted.
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338 |
*/
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339 |
jboolean
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340 |
eventFilterRestricted_passesFilter(JNIEnv *env,
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341 |
char *classname,
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|
342 |
EventInfo *evinfo,
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|
343 |
HandlerNode *node,
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|
344 |
jboolean *shouldDelete)
|
|
345 |
{
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|
346 |
jthread thread;
|
|
347 |
jclass clazz;
|
|
348 |
jmethodID method;
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|
349 |
Filter *filter = FILTERS_ARRAY(node);
|
|
350 |
int i;
|
|
351 |
|
|
352 |
*shouldDelete = JNI_FALSE;
|
|
353 |
thread = evinfo->thread;
|
|
354 |
clazz = evinfo->clazz;
|
|
355 |
method = evinfo->method;
|
|
356 |
|
|
357 |
/*
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|
358 |
* Suppress most events if they happen in debug threads
|
|
359 |
*/
|
|
360 |
if ((evinfo->ei != EI_CLASS_PREPARE) &&
|
|
361 |
(evinfo->ei != EI_GC_FINISH) &&
|
|
362 |
(evinfo->ei != EI_CLASS_LOAD) &&
|
|
363 |
threadControl_isDebugThread(thread)) {
|
|
364 |
return JNI_FALSE;
|
|
365 |
}
|
|
366 |
|
|
367 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
368 |
switch (filter->modifier) {
|
|
369 |
case JDWP_REQUEST_MODIFIER(ThreadOnly):
|
|
370 |
if (!isSameObject(env, thread, filter->u.ThreadOnly.thread)) {
|
|
371 |
return JNI_FALSE;
|
|
372 |
}
|
|
373 |
break;
|
|
374 |
|
|
375 |
case JDWP_REQUEST_MODIFIER(ClassOnly):
|
|
376 |
/* Class filters catch events in the specified
|
|
377 |
* class and any subclass/subinterface.
|
|
378 |
*/
|
|
379 |
if (!JNI_FUNC_PTR(env,IsAssignableFrom)(env, clazz,
|
|
380 |
filter->u.ClassOnly.clazz)) {
|
|
381 |
return JNI_FALSE;
|
|
382 |
}
|
|
383 |
break;
|
|
384 |
|
|
385 |
/* This is kinda cheating assumming the event
|
|
386 |
* fields will be in the same locations, but it is
|
|
387 |
* true now.
|
|
388 |
*/
|
|
389 |
case JDWP_REQUEST_MODIFIER(LocationOnly):
|
|
390 |
if (evinfo->method !=
|
|
391 |
filter->u.LocationOnly.method ||
|
|
392 |
evinfo->location !=
|
|
393 |
filter->u.LocationOnly.location ||
|
|
394 |
!isSameObject(env, clazz, filter->u.LocationOnly.clazz)) {
|
|
395 |
return JNI_FALSE;
|
|
396 |
}
|
|
397 |
break;
|
|
398 |
|
|
399 |
case JDWP_REQUEST_MODIFIER(FieldOnly):
|
|
400 |
/* Field watchpoints can be triggered from the
|
|
401 |
* declared class or any subclass/subinterface.
|
|
402 |
*/
|
|
403 |
if ((evinfo->u.field_access.field !=
|
|
404 |
filter->u.FieldOnly.field) ||
|
|
405 |
!isSameObject(env, evinfo->u.field_access.field_clazz,
|
|
406 |
filter->u.FieldOnly.clazz)) {
|
|
407 |
return JNI_FALSE;
|
|
408 |
}
|
|
409 |
break;
|
|
410 |
|
|
411 |
case JDWP_REQUEST_MODIFIER(ExceptionOnly):
|
|
412 |
/* do we want caught/uncaught exceptions */
|
|
413 |
if (!((evinfo->u.exception.catch_clazz == NULL)?
|
|
414 |
filter->u.ExceptionOnly.uncaught :
|
|
415 |
filter->u.ExceptionOnly.caught)) {
|
|
416 |
return JNI_FALSE;
|
|
417 |
}
|
|
418 |
|
|
419 |
/* do we care about exception class */
|
|
420 |
if (filter->u.ExceptionOnly.exception != NULL) {
|
|
421 |
jclass exception = evinfo->object;
|
|
422 |
|
|
423 |
/* do we want this exception class */
|
|
424 |
if (!JNI_FUNC_PTR(env,IsInstanceOf)(env, exception,
|
|
425 |
filter->u.ExceptionOnly.exception)) {
|
|
426 |
return JNI_FALSE;
|
|
427 |
}
|
|
428 |
}
|
|
429 |
break;
|
|
430 |
|
|
431 |
case JDWP_REQUEST_MODIFIER(InstanceOnly): {
|
|
432 |
jobject eventInst = eventInstance(evinfo);
|
|
433 |
jobject filterInst = filter->u.InstanceOnly.instance;
|
|
434 |
/* if no error and doesn't match, don't pass
|
|
435 |
* filter
|
|
436 |
*/
|
|
437 |
if (eventInst != NULL &&
|
|
438 |
!isSameObject(env, eventInst, filterInst)) {
|
|
439 |
return JNI_FALSE;
|
|
440 |
}
|
|
441 |
break;
|
|
442 |
}
|
|
443 |
case JDWP_REQUEST_MODIFIER(Count): {
|
|
444 |
JDI_ASSERT(filter->u.Count.count > 0);
|
|
445 |
if (--filter->u.Count.count > 0) {
|
|
446 |
return JNI_FALSE;
|
|
447 |
}
|
|
448 |
*shouldDelete = JNI_TRUE;
|
|
449 |
break;
|
|
450 |
}
|
|
451 |
|
|
452 |
case JDWP_REQUEST_MODIFIER(Conditional):
|
|
453 |
/***
|
|
454 |
if (... filter->u.Conditional.exprID ...) {
|
|
455 |
return JNI_FALSE;
|
|
456 |
}
|
|
457 |
***/
|
|
458 |
break;
|
|
459 |
|
|
460 |
case JDWP_REQUEST_MODIFIER(ClassMatch): {
|
|
461 |
if (!patternStringMatch(classname,
|
|
462 |
filter->u.ClassMatch.classPattern)) {
|
|
463 |
return JNI_FALSE;
|
|
464 |
}
|
|
465 |
break;
|
|
466 |
}
|
|
467 |
|
|
468 |
case JDWP_REQUEST_MODIFIER(ClassExclude): {
|
|
469 |
if (patternStringMatch(classname,
|
|
470 |
filter->u.ClassExclude.classPattern)) {
|
|
471 |
return JNI_FALSE;
|
|
472 |
}
|
|
473 |
break;
|
|
474 |
}
|
|
475 |
|
|
476 |
case JDWP_REQUEST_MODIFIER(Step):
|
|
477 |
if (!isSameObject(env, thread, filter->u.Step.thread)) {
|
|
478 |
return JNI_FALSE;
|
|
479 |
}
|
|
480 |
if (!stepControl_handleStep(env, thread, clazz, method)) {
|
|
481 |
return JNI_FALSE;
|
|
482 |
}
|
|
483 |
break;
|
|
484 |
|
|
485 |
case JDWP_REQUEST_MODIFIER(SourceNameMatch): {
|
|
486 |
char* desiredNamePattern = filter->u.SourceNameOnly.sourceNamePattern;
|
|
487 |
if (!searchAllSourceNames(env, clazz,
|
|
488 |
desiredNamePattern) == 1) {
|
|
489 |
/* The name isn't in the SDE; try the sourceName in the ref
|
|
490 |
* type
|
|
491 |
*/
|
|
492 |
char *sourceName = 0;
|
|
493 |
jvmtiError error = JVMTI_FUNC_PTR(gdata->jvmti,GetSourceFileName)
|
|
494 |
(gdata->jvmti, clazz, &sourceName);
|
|
495 |
if (error == JVMTI_ERROR_NONE) {
|
|
496 |
if (sourceName == 0 || !patternStringMatch(sourceName, desiredNamePattern)) {
|
|
497 |
/* We have no match */
|
|
498 |
jvmtiDeallocate(sourceName);
|
|
499 |
return JNI_FALSE;
|
|
500 |
}
|
|
501 |
}
|
|
502 |
jvmtiDeallocate(sourceName);
|
|
503 |
}
|
|
504 |
break;
|
|
505 |
}
|
|
506 |
|
|
507 |
default:
|
|
508 |
EXIT_ERROR(AGENT_ERROR_ILLEGAL_ARGUMENT,"Invalid filter modifier");
|
|
509 |
return JNI_FALSE;
|
|
510 |
}
|
|
511 |
}
|
|
512 |
return JNI_TRUE;
|
|
513 |
}
|
|
514 |
|
|
515 |
/* Determine if this event is interesting to this handler. Do so
|
|
516 |
* by checking each of the handler's filters. Return false if any
|
|
517 |
* of the filters fail, true if the handler wants this event.
|
|
518 |
* Special version of filter for unloads since they don't have an
|
|
519 |
* event structure or a jclass.
|
|
520 |
*
|
|
521 |
* If shouldDelete is returned true, a count filter has expired
|
|
522 |
* and the corresponding node should be deleted.
|
|
523 |
*/
|
|
524 |
jboolean
|
|
525 |
eventFilterRestricted_passesUnloadFilter(JNIEnv *env,
|
|
526 |
char *classname,
|
|
527 |
HandlerNode *node,
|
|
528 |
jboolean *shouldDelete)
|
|
529 |
{
|
|
530 |
Filter *filter = FILTERS_ARRAY(node);
|
|
531 |
int i;
|
|
532 |
|
|
533 |
*shouldDelete = JNI_FALSE;
|
|
534 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
535 |
switch (filter->modifier) {
|
|
536 |
|
|
537 |
case JDWP_REQUEST_MODIFIER(Count): {
|
|
538 |
JDI_ASSERT(filter->u.Count.count > 0);
|
|
539 |
if (--filter->u.Count.count > 0) {
|
|
540 |
return JNI_FALSE;
|
|
541 |
}
|
|
542 |
*shouldDelete = JNI_TRUE;
|
|
543 |
break;
|
|
544 |
}
|
|
545 |
|
|
546 |
case JDWP_REQUEST_MODIFIER(ClassMatch): {
|
|
547 |
if (!patternStringMatch(classname,
|
|
548 |
filter->u.ClassMatch.classPattern)) {
|
|
549 |
return JNI_FALSE;
|
|
550 |
}
|
|
551 |
break;
|
|
552 |
}
|
|
553 |
|
|
554 |
case JDWP_REQUEST_MODIFIER(ClassExclude): {
|
|
555 |
if (patternStringMatch(classname,
|
|
556 |
filter->u.ClassExclude.classPattern)) {
|
|
557 |
return JNI_FALSE;
|
|
558 |
}
|
|
559 |
break;
|
|
560 |
}
|
|
561 |
|
|
562 |
default:
|
|
563 |
EXIT_ERROR(AGENT_ERROR_ILLEGAL_ARGUMENT,"Invalid filter modifier");
|
|
564 |
return JNI_FALSE;
|
|
565 |
}
|
|
566 |
}
|
|
567 |
return JNI_TRUE;
|
|
568 |
}
|
|
569 |
|
|
570 |
/**
|
|
571 |
* This function returns true only if it is certain that
|
|
572 |
* all events for the given node in the given stack frame will
|
|
573 |
* be filtered. It is used to optimize stepping. (If this
|
|
574 |
* function returns true the stepping algorithm does not
|
|
575 |
* have to step through every instruction in this stack frame;
|
|
576 |
* instead, it can use more efficient method entry/exit
|
|
577 |
* events.
|
|
578 |
*/
|
|
579 |
jboolean
|
|
580 |
eventFilter_predictFiltering(HandlerNode *node, jclass clazz, char *classname)
|
|
581 |
{
|
|
582 |
JNIEnv *env;
|
|
583 |
jboolean willBeFiltered;
|
|
584 |
Filter *filter;
|
|
585 |
jboolean done;
|
|
586 |
int count;
|
|
587 |
int i;
|
|
588 |
|
|
589 |
willBeFiltered = JNI_FALSE;
|
|
590 |
env = NULL;
|
|
591 |
filter = FILTERS_ARRAY(node);
|
|
592 |
count = FILTER_COUNT(node);
|
|
593 |
done = JNI_FALSE;
|
|
594 |
|
|
595 |
for (i = 0; (i < count) && (!done); ++i, ++filter) {
|
|
596 |
switch (filter->modifier) {
|
|
597 |
case JDWP_REQUEST_MODIFIER(ClassOnly):
|
|
598 |
if ( env==NULL ) {
|
|
599 |
env = getEnv();
|
|
600 |
}
|
|
601 |
if (!JNI_FUNC_PTR(env,IsAssignableFrom)(env, clazz,
|
|
602 |
filter->u.ClassOnly.clazz)) {
|
|
603 |
willBeFiltered = JNI_TRUE;
|
|
604 |
done = JNI_TRUE;
|
|
605 |
}
|
|
606 |
break;
|
|
607 |
|
|
608 |
case JDWP_REQUEST_MODIFIER(Count): {
|
|
609 |
/*
|
|
610 |
* If preceeding filters have determined that events will
|
|
611 |
* be filtered out, that is fine and we won't get here.
|
|
612 |
* However, the count must be decremented - even if
|
|
613 |
* subsequent filters will filter these events. We
|
|
614 |
* thus must end now unable to predict
|
|
615 |
*/
|
|
616 |
done = JNI_TRUE;
|
|
617 |
break;
|
|
618 |
}
|
|
619 |
|
|
620 |
case JDWP_REQUEST_MODIFIER(ClassMatch): {
|
|
621 |
if (!patternStringMatch(classname,
|
|
622 |
filter->u.ClassMatch.classPattern)) {
|
|
623 |
willBeFiltered = JNI_TRUE;
|
|
624 |
done = JNI_TRUE;
|
|
625 |
}
|
|
626 |
break;
|
|
627 |
}
|
|
628 |
|
|
629 |
case JDWP_REQUEST_MODIFIER(ClassExclude): {
|
|
630 |
if (patternStringMatch(classname,
|
|
631 |
filter->u.ClassExclude.classPattern)) {
|
|
632 |
willBeFiltered = JNI_TRUE;
|
|
633 |
done = JNI_TRUE;
|
|
634 |
}
|
|
635 |
break;
|
|
636 |
}
|
|
637 |
}
|
|
638 |
}
|
|
639 |
|
|
640 |
return willBeFiltered;
|
|
641 |
}
|
|
642 |
|
|
643 |
/**
|
|
644 |
* Determine if the given breakpoint node is in the specified class.
|
|
645 |
*/
|
|
646 |
jboolean
|
|
647 |
eventFilterRestricted_isBreakpointInClass(JNIEnv *env, jclass clazz,
|
|
648 |
HandlerNode *node)
|
|
649 |
{
|
|
650 |
Filter *filter = FILTERS_ARRAY(node);
|
|
651 |
int i;
|
|
652 |
|
|
653 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
654 |
switch (filter->modifier) {
|
|
655 |
case JDWP_REQUEST_MODIFIER(LocationOnly):
|
|
656 |
return isSameObject(env, clazz, filter->u.LocationOnly.clazz);
|
|
657 |
}
|
|
658 |
}
|
|
659 |
return JNI_TRUE; /* should never come here */
|
|
660 |
}
|
|
661 |
|
|
662 |
/***** filter set-up *****/
|
|
663 |
|
|
664 |
jvmtiError
|
|
665 |
eventFilter_setConditionalFilter(HandlerNode *node, jint index,
|
|
666 |
jint exprID)
|
|
667 |
{
|
|
668 |
ConditionalFilter *filter = &FILTER(node, index).u.Conditional;
|
|
669 |
if (index >= FILTER_COUNT(node)) {
|
|
670 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
671 |
}
|
|
672 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(Conditional);
|
|
673 |
filter->exprID = exprID;
|
|
674 |
return JVMTI_ERROR_NONE;
|
|
675 |
}
|
|
676 |
|
|
677 |
jvmtiError
|
|
678 |
eventFilter_setCountFilter(HandlerNode *node, jint index,
|
|
679 |
jint count)
|
|
680 |
{
|
|
681 |
CountFilter *filter = &FILTER(node, index).u.Count;
|
|
682 |
if (index >= FILTER_COUNT(node)) {
|
|
683 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
684 |
}
|
|
685 |
if (count <= 0) {
|
|
686 |
return JDWP_ERROR(INVALID_COUNT);
|
|
687 |
} else {
|
|
688 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(Count);
|
|
689 |
filter->count = count;
|
|
690 |
return JVMTI_ERROR_NONE;
|
|
691 |
}
|
|
692 |
}
|
|
693 |
|
|
694 |
jvmtiError
|
|
695 |
eventFilter_setThreadOnlyFilter(HandlerNode *node, jint index,
|
|
696 |
jthread thread)
|
|
697 |
{
|
|
698 |
JNIEnv *env = getEnv();
|
|
699 |
ThreadFilter *filter = &FILTER(node, index).u.ThreadOnly;
|
|
700 |
if (index >= FILTER_COUNT(node)) {
|
|
701 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
702 |
}
|
|
703 |
if (NODE_EI(node) == EI_GC_FINISH) {
|
|
704 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
705 |
}
|
|
706 |
|
|
707 |
/* Create a thread ref that will live beyond */
|
|
708 |
/* the end of this call */
|
|
709 |
saveGlobalRef(env, thread, &(filter->thread));
|
|
710 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(ThreadOnly);
|
|
711 |
return JVMTI_ERROR_NONE;
|
|
712 |
}
|
|
713 |
|
|
714 |
jvmtiError
|
|
715 |
eventFilter_setLocationOnlyFilter(HandlerNode *node, jint index,
|
|
716 |
jclass clazz, jmethodID method,
|
|
717 |
jlocation location)
|
|
718 |
{
|
|
719 |
JNIEnv *env = getEnv();
|
|
720 |
LocationFilter *filter = &FILTER(node, index).u.LocationOnly;
|
|
721 |
if (index >= FILTER_COUNT(node)) {
|
|
722 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
723 |
}
|
|
724 |
if ((NODE_EI(node) != EI_BREAKPOINT) &&
|
|
725 |
(NODE_EI(node) != EI_FIELD_ACCESS) &&
|
|
726 |
(NODE_EI(node) != EI_FIELD_MODIFICATION) &&
|
|
727 |
(NODE_EI(node) != EI_SINGLE_STEP) &&
|
|
728 |
(NODE_EI(node) != EI_EXCEPTION)) {
|
|
729 |
|
|
730 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
731 |
}
|
|
732 |
|
|
733 |
/* Create a class ref that will live beyond */
|
|
734 |
/* the end of this call */
|
|
735 |
saveGlobalRef(env, clazz, &(filter->clazz));
|
|
736 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(LocationOnly);
|
|
737 |
filter->method = method;
|
|
738 |
filter->location = location;
|
|
739 |
return JVMTI_ERROR_NONE;
|
|
740 |
}
|
|
741 |
|
|
742 |
jvmtiError
|
|
743 |
eventFilter_setFieldOnlyFilter(HandlerNode *node, jint index,
|
|
744 |
jclass clazz, jfieldID field)
|
|
745 |
{
|
|
746 |
JNIEnv *env = getEnv();
|
|
747 |
FieldFilter *filter = &FILTER(node, index).u.FieldOnly;
|
|
748 |
if (index >= FILTER_COUNT(node)) {
|
|
749 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
750 |
}
|
|
751 |
if ((NODE_EI(node) != EI_FIELD_ACCESS) &&
|
|
752 |
(NODE_EI(node) != EI_FIELD_MODIFICATION)) {
|
|
753 |
|
|
754 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
755 |
}
|
|
756 |
|
|
757 |
/* Create a class ref that will live beyond */
|
|
758 |
/* the end of this call */
|
|
759 |
saveGlobalRef(env, clazz, &(filter->clazz));
|
|
760 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(FieldOnly);
|
|
761 |
filter->field = field;
|
|
762 |
return JVMTI_ERROR_NONE;
|
|
763 |
}
|
|
764 |
|
|
765 |
jvmtiError
|
|
766 |
eventFilter_setClassOnlyFilter(HandlerNode *node, jint index,
|
|
767 |
jclass clazz)
|
|
768 |
{
|
|
769 |
JNIEnv *env = getEnv();
|
|
770 |
ClassFilter *filter = &FILTER(node, index).u.ClassOnly;
|
|
771 |
if (index >= FILTER_COUNT(node)) {
|
|
772 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
773 |
}
|
|
774 |
if (
|
|
775 |
(NODE_EI(node) == EI_GC_FINISH) ||
|
|
776 |
(NODE_EI(node) == EI_THREAD_START) ||
|
|
777 |
(NODE_EI(node) == EI_THREAD_END)) {
|
|
778 |
|
|
779 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
780 |
}
|
|
781 |
|
|
782 |
/* Create a class ref that will live beyond */
|
|
783 |
/* the end of this call */
|
|
784 |
saveGlobalRef(env, clazz, &(filter->clazz));
|
|
785 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(ClassOnly);
|
|
786 |
return JVMTI_ERROR_NONE;
|
|
787 |
}
|
|
788 |
|
|
789 |
jvmtiError
|
|
790 |
eventFilter_setExceptionOnlyFilter(HandlerNode *node, jint index,
|
|
791 |
jclass exceptionClass,
|
|
792 |
jboolean caught,
|
|
793 |
jboolean uncaught)
|
|
794 |
{
|
|
795 |
JNIEnv *env = getEnv();
|
|
796 |
ExceptionFilter *filter = &FILTER(node, index).u.ExceptionOnly;
|
|
797 |
if (index >= FILTER_COUNT(node)) {
|
|
798 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
799 |
}
|
|
800 |
if (NODE_EI(node) != EI_EXCEPTION) {
|
|
801 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
802 |
}
|
|
803 |
|
|
804 |
filter->exception = NULL;
|
|
805 |
if (exceptionClass != NULL) {
|
|
806 |
/* Create a class ref that will live beyond */
|
|
807 |
/* the end of this call */
|
|
808 |
saveGlobalRef(env, exceptionClass, &(filter->exception));
|
|
809 |
}
|
|
810 |
FILTER(node, index).modifier =
|
|
811 |
JDWP_REQUEST_MODIFIER(ExceptionOnly);
|
|
812 |
filter->caught = caught;
|
|
813 |
filter->uncaught = uncaught;
|
|
814 |
return JVMTI_ERROR_NONE;
|
|
815 |
}
|
|
816 |
|
|
817 |
jvmtiError
|
|
818 |
eventFilter_setInstanceOnlyFilter(HandlerNode *node, jint index,
|
|
819 |
jobject instance)
|
|
820 |
{
|
|
821 |
JNIEnv *env = getEnv();
|
|
822 |
InstanceFilter *filter = &FILTER(node, index).u.InstanceOnly;
|
|
823 |
if (index >= FILTER_COUNT(node)) {
|
|
824 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
825 |
}
|
|
826 |
|
|
827 |
filter->instance = NULL;
|
|
828 |
if (instance != NULL) {
|
|
829 |
/* Create an object ref that will live beyond
|
|
830 |
* the end of this call
|
|
831 |
*/
|
|
832 |
saveGlobalRef(env, instance, &(filter->instance));
|
|
833 |
}
|
|
834 |
FILTER(node, index).modifier =
|
|
835 |
JDWP_REQUEST_MODIFIER(InstanceOnly);
|
|
836 |
return JVMTI_ERROR_NONE;
|
|
837 |
}
|
|
838 |
|
|
839 |
jvmtiError
|
|
840 |
eventFilter_setClassMatchFilter(HandlerNode *node, jint index,
|
|
841 |
char *classPattern)
|
|
842 |
{
|
|
843 |
MatchFilter *filter = &FILTER(node, index).u.ClassMatch;
|
|
844 |
if (index >= FILTER_COUNT(node)) {
|
|
845 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
846 |
}
|
|
847 |
if (
|
|
848 |
(NODE_EI(node) == EI_THREAD_START) ||
|
|
849 |
(NODE_EI(node) == EI_THREAD_END)) {
|
|
850 |
|
|
851 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
852 |
}
|
|
853 |
|
|
854 |
FILTER(node, index).modifier =
|
|
855 |
JDWP_REQUEST_MODIFIER(ClassMatch);
|
|
856 |
filter->classPattern = classPattern;
|
|
857 |
return JVMTI_ERROR_NONE;
|
|
858 |
}
|
|
859 |
|
|
860 |
jvmtiError
|
|
861 |
eventFilter_setClassExcludeFilter(HandlerNode *node, jint index,
|
|
862 |
char *classPattern)
|
|
863 |
{
|
|
864 |
MatchFilter *filter = &FILTER(node, index).u.ClassExclude;
|
|
865 |
if (index >= FILTER_COUNT(node)) {
|
|
866 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
867 |
}
|
|
868 |
if (
|
|
869 |
(NODE_EI(node) == EI_THREAD_START) ||
|
|
870 |
(NODE_EI(node) == EI_THREAD_END)) {
|
|
871 |
|
|
872 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
873 |
}
|
|
874 |
|
|
875 |
FILTER(node, index).modifier =
|
|
876 |
JDWP_REQUEST_MODIFIER(ClassExclude);
|
|
877 |
filter->classPattern = classPattern;
|
|
878 |
return JVMTI_ERROR_NONE;
|
|
879 |
}
|
|
880 |
|
|
881 |
jvmtiError
|
|
882 |
eventFilter_setStepFilter(HandlerNode *node, jint index,
|
|
883 |
jthread thread, jint size, jint depth)
|
|
884 |
{
|
|
885 |
jvmtiError error;
|
|
886 |
JNIEnv *env = getEnv();
|
|
887 |
StepFilter *filter = &FILTER(node, index).u.Step;
|
|
888 |
if (index >= FILTER_COUNT(node)) {
|
|
889 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
890 |
}
|
|
891 |
if (NODE_EI(node) != EI_SINGLE_STEP) {
|
|
892 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
893 |
}
|
|
894 |
|
|
895 |
/* Create a thread ref that will live beyond */
|
|
896 |
/* the end of this call */
|
|
897 |
saveGlobalRef(env, thread, &(filter->thread));
|
|
898 |
error = stepControl_beginStep(env, filter->thread, size, depth, node);
|
|
899 |
if (error != JVMTI_ERROR_NONE) {
|
|
900 |
tossGlobalRef(env, &(filter->thread));
|
|
901 |
return error;
|
|
902 |
}
|
|
903 |
FILTER(node, index).modifier = JDWP_REQUEST_MODIFIER(Step);
|
|
904 |
filter->depth = depth;
|
|
905 |
filter->size = size;
|
|
906 |
return JVMTI_ERROR_NONE;
|
|
907 |
}
|
|
908 |
|
|
909 |
|
|
910 |
jvmtiError
|
|
911 |
eventFilter_setSourceNameMatchFilter(HandlerNode *node,
|
|
912 |
jint index,
|
|
913 |
char *sourceNamePattern) {
|
|
914 |
SourceNameFilter *filter = &FILTER(node, index).u.SourceNameOnly;
|
|
915 |
if (index >= FILTER_COUNT(node)) {
|
|
916 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
917 |
}
|
|
918 |
if (NODE_EI(node) != EI_CLASS_PREPARE) {
|
|
919 |
return AGENT_ERROR_ILLEGAL_ARGUMENT;
|
|
920 |
}
|
|
921 |
|
|
922 |
FILTER(node, index).modifier =
|
|
923 |
JDWP_REQUEST_MODIFIER(SourceNameMatch);
|
|
924 |
filter->sourceNamePattern = sourceNamePattern;
|
|
925 |
return JVMTI_ERROR_NONE;
|
|
926 |
|
|
927 |
}
|
|
928 |
|
|
929 |
/***** JVMTI event enabling / disabling *****/
|
|
930 |
|
|
931 |
/**
|
|
932 |
* Return the Filter that is of the specified type (modifier).
|
|
933 |
* Return NULL if not found.
|
|
934 |
*/
|
|
935 |
static Filter *
|
|
936 |
findFilter(HandlerNode *node, jint modifier)
|
|
937 |
{
|
|
938 |
int i;
|
|
939 |
Filter *filter;
|
|
940 |
for (i = 0, filter = FILTERS_ARRAY(node);
|
|
941 |
i <FILTER_COUNT(node);
|
|
942 |
i++, filter++) {
|
|
943 |
if (filter->modifier == modifier) {
|
|
944 |
return filter;
|
|
945 |
}
|
|
946 |
}
|
|
947 |
return NULL;
|
|
948 |
}
|
|
949 |
|
|
950 |
/**
|
|
951 |
* Determine if the specified breakpoint node is in the
|
|
952 |
* same location as the LocationFilter passed in arg.
|
|
953 |
*
|
|
954 |
* This is a match function called by a
|
|
955 |
* eventHandlerRestricted_iterator invokation.
|
|
956 |
*/
|
|
957 |
static jboolean
|
|
958 |
matchBreakpoint(JNIEnv *env, HandlerNode *node, void *arg)
|
|
959 |
{
|
|
960 |
LocationFilter *goal = (LocationFilter *)arg;
|
|
961 |
Filter *filter = FILTERS_ARRAY(node);
|
|
962 |
int i;
|
|
963 |
|
|
964 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
965 |
switch (filter->modifier) {
|
|
966 |
case JDWP_REQUEST_MODIFIER(LocationOnly): {
|
|
967 |
LocationFilter *trial = &(filter->u.LocationOnly);
|
|
968 |
if (trial->method == goal->method &&
|
|
969 |
trial->location == goal->location &&
|
|
970 |
isSameObject(env, trial->clazz, goal->clazz)) {
|
|
971 |
return JNI_TRUE;
|
|
972 |
}
|
|
973 |
}
|
|
974 |
}
|
|
975 |
}
|
|
976 |
return JNI_FALSE;
|
|
977 |
}
|
|
978 |
|
|
979 |
/**
|
|
980 |
* Set a breakpoint if this is the first one at this location.
|
|
981 |
*/
|
|
982 |
static jvmtiError
|
|
983 |
setBreakpoint(HandlerNode *node)
|
|
984 |
{
|
|
985 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
986 |
Filter *filter;
|
|
987 |
|
|
988 |
filter = findFilter(node, JDWP_REQUEST_MODIFIER(LocationOnly));
|
|
989 |
if (filter == NULL) {
|
|
990 |
/* bp event with no location filter */
|
|
991 |
error = AGENT_ERROR_INTERNAL;
|
|
992 |
} else {
|
|
993 |
LocationFilter *lf = &(filter->u.LocationOnly);
|
|
994 |
|
|
995 |
/* if this is the first handler for this
|
|
996 |
* location, set bp at JVMTI level
|
|
997 |
*/
|
|
998 |
if (!eventHandlerRestricted_iterator(
|
|
999 |
EI_BREAKPOINT, matchBreakpoint, lf)) {
|
|
1000 |
LOG_LOC(("SetBreakpoint at location: method=%p,location=%d",
|
|
1001 |
lf->method, (int)lf->location));
|
|
1002 |
error = JVMTI_FUNC_PTR(gdata->jvmti,SetBreakpoint)
|
|
1003 |
(gdata->jvmti, lf->method, lf->location);
|
|
1004 |
}
|
|
1005 |
}
|
|
1006 |
return error;
|
|
1007 |
}
|
|
1008 |
|
|
1009 |
/**
|
|
1010 |
* Clear a breakpoint if this is the last one at this location.
|
|
1011 |
*/
|
|
1012 |
static jvmtiError
|
|
1013 |
clearBreakpoint(HandlerNode *node)
|
|
1014 |
{
|
|
1015 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
1016 |
Filter *filter;
|
|
1017 |
|
|
1018 |
filter = findFilter(node, JDWP_REQUEST_MODIFIER(LocationOnly));
|
|
1019 |
if (filter == NULL) {
|
|
1020 |
/* bp event with no location filter */
|
|
1021 |
error = AGENT_ERROR_INTERNAL;
|
|
1022 |
} else {
|
|
1023 |
LocationFilter *lf = &(filter->u.LocationOnly);
|
|
1024 |
|
|
1025 |
/* if this is the last handler for this
|
|
1026 |
* location, clear bp at JVMTI level
|
|
1027 |
*/
|
|
1028 |
if (!eventHandlerRestricted_iterator(
|
|
1029 |
EI_BREAKPOINT, matchBreakpoint, lf)) {
|
|
1030 |
LOG_LOC(("ClearBreakpoint at location: method=%p,location=%d",
|
|
1031 |
lf->method, (int)lf->location));
|
|
1032 |
error = JVMTI_FUNC_PTR(gdata->jvmti,ClearBreakpoint)
|
|
1033 |
(gdata->jvmti, lf->method, lf->location);
|
|
1034 |
}
|
|
1035 |
}
|
|
1036 |
return error;
|
|
1037 |
}
|
|
1038 |
|
|
1039 |
/**
|
|
1040 |
* Return true if a breakpoint is set at the specified location.
|
|
1041 |
*/
|
|
1042 |
jboolean
|
|
1043 |
isBreakpointSet(jclass clazz, jmethodID method, jlocation location)
|
|
1044 |
{
|
|
1045 |
LocationFilter lf;
|
|
1046 |
|
|
1047 |
lf.clazz = clazz;
|
|
1048 |
lf.method = method;
|
|
1049 |
lf.location = location;
|
|
1050 |
|
|
1051 |
return eventHandlerRestricted_iterator(EI_BREAKPOINT,
|
|
1052 |
matchBreakpoint, &lf);
|
|
1053 |
}
|
|
1054 |
|
|
1055 |
/**
|
|
1056 |
* Determine if the specified watchpoint node has the
|
|
1057 |
* same field as the FieldFilter passed in arg.
|
|
1058 |
*
|
|
1059 |
* This is a match function called by a
|
|
1060 |
* eventHandlerRestricted_iterator invokation.
|
|
1061 |
*/
|
|
1062 |
static jboolean
|
|
1063 |
matchWatchpoint(JNIEnv *env, HandlerNode *node, void *arg)
|
|
1064 |
{
|
|
1065 |
FieldFilter *goal = (FieldFilter *)arg;
|
|
1066 |
Filter *filter = FILTERS_ARRAY(node);
|
|
1067 |
int i;
|
|
1068 |
|
|
1069 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
1070 |
switch (filter->modifier) {
|
|
1071 |
case JDWP_REQUEST_MODIFIER(FieldOnly): {
|
|
1072 |
FieldFilter *trial = &(filter->u.FieldOnly);
|
|
1073 |
if (trial->field == goal->field &&
|
|
1074 |
isSameObject(env, trial->clazz, goal->clazz)) {
|
|
1075 |
return JNI_TRUE;
|
|
1076 |
}
|
|
1077 |
}
|
|
1078 |
}
|
|
1079 |
}
|
|
1080 |
return JNI_FALSE;
|
|
1081 |
}
|
|
1082 |
|
|
1083 |
/**
|
|
1084 |
* Set a watchpoint if this is the first one on this field.
|
|
1085 |
*/
|
|
1086 |
static jvmtiError
|
|
1087 |
setWatchpoint(HandlerNode *node)
|
|
1088 |
{
|
|
1089 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
1090 |
Filter *filter;
|
|
1091 |
|
|
1092 |
filter = findFilter(node, JDWP_REQUEST_MODIFIER(FieldOnly));
|
|
1093 |
if (filter == NULL) {
|
|
1094 |
/* event with no field filter */
|
|
1095 |
error = AGENT_ERROR_INTERNAL;
|
|
1096 |
} else {
|
|
1097 |
FieldFilter *ff = &(filter->u.FieldOnly);
|
|
1098 |
|
|
1099 |
/* if this is the first handler for this
|
|
1100 |
* field, set wp at JVMTI level
|
|
1101 |
*/
|
|
1102 |
if (!eventHandlerRestricted_iterator(
|
|
1103 |
NODE_EI(node), matchWatchpoint, ff)) {
|
|
1104 |
error = (NODE_EI(node) == EI_FIELD_ACCESS) ?
|
|
1105 |
JVMTI_FUNC_PTR(gdata->jvmti,SetFieldAccessWatch)
|
|
1106 |
(gdata->jvmti, ff->clazz, ff->field) :
|
|
1107 |
JVMTI_FUNC_PTR(gdata->jvmti,SetFieldModificationWatch)
|
|
1108 |
(gdata->jvmti, ff->clazz, ff->field);
|
|
1109 |
}
|
|
1110 |
}
|
|
1111 |
return error;
|
|
1112 |
}
|
|
1113 |
|
|
1114 |
/**
|
|
1115 |
* Clear a watchpoint if this is the last one on this field.
|
|
1116 |
*/
|
|
1117 |
static jvmtiError
|
|
1118 |
clearWatchpoint(HandlerNode *node)
|
|
1119 |
{
|
|
1120 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
1121 |
Filter *filter;
|
|
1122 |
|
|
1123 |
filter = findFilter(node, JDWP_REQUEST_MODIFIER(FieldOnly));
|
|
1124 |
if (filter == NULL) {
|
|
1125 |
/* event with no field filter */
|
|
1126 |
error = AGENT_ERROR_INTERNAL;
|
|
1127 |
} else {
|
|
1128 |
FieldFilter *ff = &(filter->u.FieldOnly);
|
|
1129 |
|
|
1130 |
/* if this is the last handler for this
|
|
1131 |
* field, clear wp at JVMTI level
|
|
1132 |
*/
|
|
1133 |
if (!eventHandlerRestricted_iterator(
|
|
1134 |
NODE_EI(node), matchWatchpoint, ff)) {
|
|
1135 |
error = (NODE_EI(node) == EI_FIELD_ACCESS) ?
|
|
1136 |
JVMTI_FUNC_PTR(gdata->jvmti,ClearFieldAccessWatch)
|
|
1137 |
(gdata->jvmti, ff->clazz, ff->field) :
|
|
1138 |
JVMTI_FUNC_PTR(gdata->jvmti,ClearFieldModificationWatch)
|
|
1139 |
(gdata->jvmti, ff->clazz, ff->field);
|
|
1140 |
}
|
|
1141 |
}
|
|
1142 |
return error;
|
|
1143 |
}
|
|
1144 |
|
|
1145 |
/**
|
|
1146 |
* Determine the thread this node is filtered on.
|
|
1147 |
* NULL if not thread filtered.
|
|
1148 |
*/
|
|
1149 |
static jthread
|
|
1150 |
requestThread(HandlerNode *node)
|
|
1151 |
{
|
|
1152 |
int i;
|
|
1153 |
Filter *filter = FILTERS_ARRAY(node);
|
|
1154 |
|
|
1155 |
for (i = 0; i < FILTER_COUNT(node); ++i, ++filter) {
|
|
1156 |
switch (filter->modifier) {
|
|
1157 |
case JDWP_REQUEST_MODIFIER(ThreadOnly):
|
|
1158 |
return filter->u.ThreadOnly.thread;
|
|
1159 |
}
|
|
1160 |
}
|
|
1161 |
|
|
1162 |
return NULL;
|
|
1163 |
}
|
|
1164 |
|
|
1165 |
/**
|
|
1166 |
* Determine if the specified node has a
|
|
1167 |
* thread filter with the thread passed in arg.
|
|
1168 |
*
|
|
1169 |
* This is a match function called by a
|
|
1170 |
* eventHandlerRestricted_iterator invokation.
|
|
1171 |
*/
|
|
1172 |
static jboolean
|
|
1173 |
matchThread(JNIEnv *env, HandlerNode *node, void *arg)
|
|
1174 |
{
|
|
1175 |
jthread goalThread = (jthread)arg;
|
|
1176 |
jthread reqThread = requestThread(node);
|
|
1177 |
|
|
1178 |
/* If the event's thread and the passed thread are the same
|
|
1179 |
* (or both are NULL), we have a match.
|
|
1180 |
*/
|
|
1181 |
return isSameObject(env, reqThread, goalThread);
|
|
1182 |
}
|
|
1183 |
|
|
1184 |
/**
|
|
1185 |
* Do any enabling of events (including setting breakpoints etc)
|
|
1186 |
* needed to get the events requested by this handler node.
|
|
1187 |
*/
|
|
1188 |
static jvmtiError
|
|
1189 |
enableEvents(HandlerNode *node)
|
|
1190 |
{
|
|
1191 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
1192 |
|
|
1193 |
switch (NODE_EI(node)) {
|
|
1194 |
/* The stepping code directly enables/disables stepping as
|
|
1195 |
* necessary
|
|
1196 |
*/
|
|
1197 |
case EI_SINGLE_STEP:
|
|
1198 |
/* Internal thread event handlers are always present
|
|
1199 |
* (hardwired in the event hook), so we don't change the
|
|
1200 |
* notification mode here.
|
|
1201 |
*/
|
|
1202 |
case EI_THREAD_START:
|
|
1203 |
case EI_THREAD_END:
|
|
1204 |
case EI_VM_INIT:
|
|
1205 |
case EI_VM_DEATH:
|
|
1206 |
case EI_CLASS_PREPARE:
|
|
1207 |
case EI_GC_FINISH:
|
|
1208 |
return error;
|
|
1209 |
|
|
1210 |
case EI_FIELD_ACCESS:
|
|
1211 |
case EI_FIELD_MODIFICATION:
|
|
1212 |
error = setWatchpoint(node);
|
|
1213 |
break;
|
|
1214 |
|
|
1215 |
case EI_BREAKPOINT:
|
|
1216 |
error = setBreakpoint(node);
|
|
1217 |
break;
|
|
1218 |
|
|
1219 |
default:
|
|
1220 |
break;
|
|
1221 |
}
|
|
1222 |
|
|
1223 |
/* Don't globally enable if the above failed */
|
|
1224 |
if (error == JVMTI_ERROR_NONE) {
|
|
1225 |
jthread thread = requestThread(node);
|
|
1226 |
|
|
1227 |
/* If this is the first request of it's kind on this
|
|
1228 |
* thread (or all threads (thread == NULL)) then enable
|
|
1229 |
* these events on this thread.
|
|
1230 |
*/
|
|
1231 |
if (!eventHandlerRestricted_iterator(
|
|
1232 |
NODE_EI(node), matchThread, thread)) {
|
|
1233 |
error = threadControl_setEventMode(JVMTI_ENABLE,
|
|
1234 |
NODE_EI(node), thread);
|
|
1235 |
}
|
|
1236 |
}
|
|
1237 |
return error;
|
|
1238 |
}
|
|
1239 |
|
|
1240 |
/**
|
|
1241 |
* Do any disabling of events (including clearing breakpoints etc)
|
|
1242 |
* needed to no longer get the events requested by this handler node.
|
|
1243 |
*/
|
|
1244 |
static jvmtiError
|
|
1245 |
disableEvents(HandlerNode *node)
|
|
1246 |
{
|
|
1247 |
jvmtiError error = JVMTI_ERROR_NONE;
|
|
1248 |
jvmtiError error2 = JVMTI_ERROR_NONE;
|
|
1249 |
jthread thread;
|
|
1250 |
|
|
1251 |
|
|
1252 |
switch (NODE_EI(node)) {
|
|
1253 |
/* The stepping code directly enables/disables stepping as
|
|
1254 |
* necessary
|
|
1255 |
*/
|
|
1256 |
case EI_SINGLE_STEP:
|
|
1257 |
/* Internal thread event handlers are always present
|
|
1258 |
* (hardwired in the event hook), so we don't change the
|
|
1259 |
* notification mode here.
|
|
1260 |
*/
|
|
1261 |
case EI_THREAD_START:
|
|
1262 |
case EI_THREAD_END:
|
|
1263 |
case EI_VM_INIT:
|
|
1264 |
case EI_VM_DEATH:
|
|
1265 |
case EI_CLASS_PREPARE:
|
|
1266 |
case EI_GC_FINISH:
|
|
1267 |
return error;
|
|
1268 |
|
|
1269 |
case EI_FIELD_ACCESS:
|
|
1270 |
case EI_FIELD_MODIFICATION:
|
|
1271 |
error = clearWatchpoint(node);
|
|
1272 |
break;
|
|
1273 |
|
|
1274 |
case EI_BREAKPOINT:
|
|
1275 |
error = clearBreakpoint(node);
|
|
1276 |
break;
|
|
1277 |
|
|
1278 |
default:
|
|
1279 |
break;
|
|
1280 |
}
|
|
1281 |
|
|
1282 |
thread = requestThread(node);
|
|
1283 |
|
|
1284 |
/* If this is the last request of it's kind on this thread
|
|
1285 |
* (or all threads (thread == NULL)) then disable these
|
|
1286 |
* events on this thread.
|
|
1287 |
*
|
|
1288 |
* Disable even if the above caused an error
|
|
1289 |
*/
|
|
1290 |
if (!eventHandlerRestricted_iterator(NODE_EI(node), matchThread, thread)) {
|
|
1291 |
error2 = threadControl_setEventMode(JVMTI_DISABLE,
|
|
1292 |
NODE_EI(node), thread);
|
|
1293 |
}
|
|
1294 |
return error != JVMTI_ERROR_NONE? error : error2;
|
|
1295 |
}
|
|
1296 |
|
|
1297 |
|
|
1298 |
/***** filter (and event) installation and deinstallation *****/
|
|
1299 |
|
|
1300 |
/**
|
|
1301 |
* Make the set of event filters that correspond with this
|
|
1302 |
* node active (including enabling the corresponding events).
|
|
1303 |
*/
|
|
1304 |
jvmtiError
|
|
1305 |
eventFilterRestricted_install(HandlerNode *node)
|
|
1306 |
{
|
|
1307 |
return enableEvents(node);
|
|
1308 |
}
|
|
1309 |
|
|
1310 |
/**
|
|
1311 |
* Make the set of event filters that correspond with this
|
|
1312 |
* node inactive (including disabling the corresponding events
|
|
1313 |
* and freeing resources).
|
|
1314 |
*/
|
|
1315 |
jvmtiError
|
|
1316 |
eventFilterRestricted_deinstall(HandlerNode *node)
|
|
1317 |
{
|
|
1318 |
jvmtiError error1, error2;
|
|
1319 |
|
|
1320 |
error1 = disableEvents(node);
|
|
1321 |
error2 = clearFilters(node);
|
|
1322 |
|
|
1323 |
return error1 != JVMTI_ERROR_NONE? error1 : error2;
|
|
1324 |
}
|