114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
/* Copyright (C) 2017 The Android Open Source Project
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This file implements interfaces from the file jvmti.h. This implementation
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* is licensed under the same terms as the file jvmti.h. The
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* copyright and license information for the file jvmti.h follows.
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*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <functional>
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#include "ti_breakpoint.h"
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#include "art_jvmti.h"
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#include "art_method-inl.h"
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#include "base/enums.h"
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#include "dex_file_annotations.h"
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#include "events-inl.h"
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#include "jni_internal.h"
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#include "mirror/class-inl.h"
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#include "mirror/object_array-inl.h"
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#include "modifiers.h"
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#include "nativehelper/ScopedLocalRef.h"
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#include "runtime_callbacks.h"
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#include "scoped_thread_state_change-inl.h"
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#include "thread-current-inl.h"
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#include "thread_list.h"
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#include "ti_phase.h"
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namespace openjdkjvmti {
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size_t Breakpoint::hash() const {
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return std::hash<uintptr_t> {}(reinterpret_cast<uintptr_t>(method_))
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^ std::hash<jlocation> {}(location_);
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}
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Breakpoint::Breakpoint(art::ArtMethod* m, jlocation loc) : method_(m), location_(loc) {
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DCHECK(!m->IsDefault() || !m->IsCopied() || !m->IsInvokable())
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<< "Flags are: 0x" << std::hex << m->GetAccessFlags();
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}
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void BreakpointUtil::RemoveBreakpointsInClass(ArtJvmTiEnv* env, art::mirror::Class* klass) {
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std::vector<Breakpoint> to_remove;
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for (const Breakpoint& b : env->breakpoints) {
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if (b.GetMethod()->GetDeclaringClass() == klass) {
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to_remove.push_back(b);
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}
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}
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for (const Breakpoint& b : to_remove) {
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auto it = env->breakpoints.find(b);
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DCHECK(it != env->breakpoints.end());
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env->breakpoints.erase(it);
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}
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}
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jvmtiError BreakpointUtil::SetBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
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ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
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if (method == nullptr) {
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return ERR(INVALID_METHODID);
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}
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// Need to get mutator_lock_ so we can find the interface version of any default methods.
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art::ScopedObjectAccess soa(art::Thread::Current());
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art::ArtMethod* art_method = art::jni::DecodeArtMethod(method)->GetCanonicalMethod();
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if (location < 0 || static_cast<uint32_t>(location) >=
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art_method->GetCodeItem()->insns_size_in_code_units_) {
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return ERR(INVALID_LOCATION);
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}
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auto res_pair = env->breakpoints.insert(/* Breakpoint */ {art_method, location});
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if (!res_pair.second) {
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// Didn't get inserted because it's already present!
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return ERR(DUPLICATE);
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}
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return OK;
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}
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jvmtiError BreakpointUtil::ClearBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
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ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
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if (method == nullptr) {
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return ERR(INVALID_METHODID);
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}
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// Need to get mutator_lock_ so we can find the interface version of any default methods.
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art::ScopedObjectAccess soa(art::Thread::Current());
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auto pos = env->breakpoints.find(
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/* Breakpoint */ {art::jni::DecodeArtMethod(method)->GetCanonicalMethod(), location});
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if (pos == env->breakpoints.end()) {
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return ERR(NOT_FOUND);
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}
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env->breakpoints.erase(pos);
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return OK;
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}
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} // namespace openjdkjvmti
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