63 lines
2.8 KiB
C++
63 lines
2.8 KiB
C++
/*
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* Copyright (c) 2020, 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.
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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 "precompiled.hpp"
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#include "prims/universalNativeInvoker.hpp"
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#include "runtime/interfaceSupport.inline.hpp"
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ProgrammableInvoker::Generator::Generator(CodeBuffer* code, const ABIDescriptor* abi, const BufferLayout* layout)
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: StubCodeGenerator(code),
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_abi(abi),
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_layout(layout) {}
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void ProgrammableInvoker::invoke_native(Stub stub, address buff, JavaThread* thread) {
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ThreadToNativeFromVM ttnfvm(thread);
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stub(buff);
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}
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JNI_ENTRY(void, PI_invokeNative(JNIEnv* env, jclass _unused, jlong adapter_stub, jlong buff))
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assert(thread->thread_state() == _thread_in_vm, "thread state is: %d", thread->thread_state());
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ProgrammableInvoker::Stub stub = (ProgrammableInvoker::Stub) adapter_stub;
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address c = (address) buff;
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ProgrammableInvoker::invoke_native(stub, c, thread);
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JNI_END
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JNI_ENTRY(jlong, PI_generateAdapter(JNIEnv* env, jclass _unused, jobject abi, jobject layout))
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return (jlong) ProgrammableInvoker::generate_adapter(abi, layout);
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JNI_END
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#define CC (char*) /*cast a literal from (const char*)*/
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#define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
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#define FOREIGN_ABI "Ljdk/internal/foreign/abi"
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static JNINativeMethod PI_methods[] = {
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{CC "invokeNative", CC "(JJ)V", FN_PTR(PI_invokeNative) },
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{CC "generateAdapter", CC "(" FOREIGN_ABI "/ABIDescriptor;" FOREIGN_ABI "/BufferLayout;" ")J", FN_PTR(PI_generateAdapter)}
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};
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JNI_LEAF(void, JVM_RegisterProgrammableInvokerMethods(JNIEnv *env, jclass PI_class))
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int status = env->RegisterNatives(PI_class, PI_methods, sizeof(PI_methods)/sizeof(JNINativeMethod));
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guarantee(status == JNI_OK && !env->ExceptionOccurred(),
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"register jdk.internal.foreign.abi.programmable.ProgrammableInvoker natives");
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JNI_END
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