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/* Copyright (C) 2017 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This file implements interfaces from the file jvmti.h. This implementation
* is licensed under the same terms as the file jvmti.h. The
* copyright and license information for the file jvmti.h follows.
*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <functional>
#include "ti_breakpoint.h"
#include "art_jvmti.h"
#include "art_method-inl.h"
#include "base/enums.h"
#include "dex_file_annotations.h"
#include "events-inl.h"
#include "jni_internal.h"
#include "mirror/class-inl.h"
#include "mirror/object_array-inl.h"
#include "modifiers.h"
#include "nativehelper/ScopedLocalRef.h"
#include "runtime_callbacks.h"
#include "scoped_thread_state_change-inl.h"
#include "thread-current-inl.h"
#include "thread_list.h"
#include "ti_phase.h"
namespace openjdkjvmti {
size_t Breakpoint::hash() const {
return std::hash<uintptr_t> {}(reinterpret_cast<uintptr_t>(method_))
^ std::hash<jlocation> {}(location_);
}
Breakpoint::Breakpoint(art::ArtMethod* m, jlocation loc) : method_(m), location_(loc) {
DCHECK(!m->IsDefault() || !m->IsCopied() || !m->IsInvokable())
<< "Flags are: 0x" << std::hex << m->GetAccessFlags();
}
void BreakpointUtil::RemoveBreakpointsInClass(ArtJvmTiEnv* env, art::mirror::Class* klass) {
std::vector<Breakpoint> to_remove;
for (const Breakpoint& b : env->breakpoints) {
if (b.GetMethod()->GetDeclaringClass() == klass) {
to_remove.push_back(b);
}
}
for (const Breakpoint& b : to_remove) {
auto it = env->breakpoints.find(b);
DCHECK(it != env->breakpoints.end());
env->breakpoints.erase(it);
}
}
jvmtiError BreakpointUtil::SetBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
if (method == nullptr) {
return ERR(INVALID_METHODID);
}
// Need to get mutator_lock_ so we can find the interface version of any default methods.
art::ScopedObjectAccess soa(art::Thread::Current());
art::ArtMethod* art_method = art::jni::DecodeArtMethod(method)->GetCanonicalMethod();
if (location < 0 || static_cast<uint32_t>(location) >=
art_method->GetCodeItem()->insns_size_in_code_units_) {
return ERR(INVALID_LOCATION);
}
auto res_pair = env->breakpoints.insert(/* Breakpoint */ {art_method, location});
if (!res_pair.second) {
// Didn't get inserted because it's already present!
return ERR(DUPLICATE);
}
return OK;
}
jvmtiError BreakpointUtil::ClearBreakpoint(jvmtiEnv* jenv, jmethodID method, jlocation location) {
ArtJvmTiEnv* env = ArtJvmTiEnv::AsArtJvmTiEnv(jenv);
if (method == nullptr) {
return ERR(INVALID_METHODID);
}
// Need to get mutator_lock_ so we can find the interface version of any default methods.
art::ScopedObjectAccess soa(art::Thread::Current());
auto pos = env->breakpoints.find(
/* Breakpoint */ {art::jni::DecodeArtMethod(method)->GetCanonicalMethod(), location});
if (pos == env->breakpoints.end()) {
return ERR(NOT_FOUND);
}
env->breakpoints.erase(pos);
return OK;
}
} // namespace openjdkjvmti
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