jdk8-mips64-public/hotspot: src/share/vm/jfr/jni/jfrJavaCall.cpp@02a4c08a8777 (annotated)

src/share/vm/jfr/jni/jfrJavaCall.cpp@02a4c08a8777 (annotated)

src/share/vm/jfr/jni/jfrJavaCall.cpp

Fri, 27 Sep 2019 10:27:29 +0800

author: egahlin
date: Fri, 27 Sep 2019 10:27:29 +0800
changeset 9883: 02a4c08a8777
parent 9858: b985cbb00e68
permissions: -rw-r--r--

8216064: -XX:StartFlightRecording:settings= doesn't work properly
Reviewed-by: mgronlun

 /*
  * Copyright (c) 2017, 2018, 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.
  *
  * 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 "precompiled.hpp"
 #include "classfile/symbolTable.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "jfr/jni/jfrJavaCall.hpp"
 #include "jfr/jni/jfrJavaSupport.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/javaCalls.hpp"
 #include "utilities/globalDefinitions.hpp"
 #ifdef ASSERT
 static bool is_large_value(const JavaValue& value) {
   return value.get_type() == T_LONG || value.get_type() == T_DOUBLE;
 }
 #endif // ASSERT
 static Symbol* resolve(const char* str, TRAPS) {
   assert(str != NULL, "invariant");
   return SymbolTable::lookup(str, (int)strlen(str), THREAD);
 }
 static Klass* resolve(Symbol* k_sym, TRAPS) {
   assert(k_sym != NULL, "invariant");
   return SystemDictionary::resolve_or_fail(k_sym, true, THREAD);
 }
 JfrJavaArguments::Parameters::Parameters() : _storage_index(0), _java_stack_slots(0) {
   JavaValue value(T_VOID);
   push(value);
 }
 void JfrJavaArguments::Parameters::push(const JavaValue& value) {
   assert(_storage != NULL, "invariant");
   assert(!is_large_value(value), "invariant");
   assert(_storage_index < SIZE, "invariant");
   _storage[_storage_index++] = value;
   _java_stack_slots++;
 }
 void JfrJavaArguments::Parameters::push_large(const JavaValue& value) {
   assert(_storage != NULL, "invariant");
   assert(is_large_value(value), "invariant");
   assert(_storage_index < SIZE, "invariant");
   _storage[_storage_index++] = value;
   _java_stack_slots += 2;
 }
 void JfrJavaArguments::Parameters::set_receiver(const oop receiver) {
   assert(_storage != NULL, "invariant");
   assert(receiver != NULL, "invariant");
   JavaValue value(T_OBJECT);
   value.set_jobject((jobject)receiver);
   _storage[0] = value;
 }
 void JfrJavaArguments::Parameters::set_receiver(Handle receiver) {
   set_receiver(receiver());
 }
 oop JfrJavaArguments::Parameters::receiver() const {
   assert(has_receiver(), "invariant");
   assert(_storage[0].get_type() == T_OBJECT, "invariant");
   return (oop)_storage[0].get_jobject();
 }
 bool JfrJavaArguments::Parameters::has_receiver() const {
   assert(_storage != NULL, "invariant");
   assert(_storage_index >= 1, "invariant");
   assert(_java_stack_slots >= 1, "invariant");
   return _storage[0].get_type() == T_OBJECT;
 }
 void JfrJavaArguments::Parameters::push_oop(const oop obj) {
   JavaValue value(T_OBJECT);
   value.set_jobject((jobject)obj);
   push(value);
 }
 void JfrJavaArguments::Parameters::push_oop(Handle h_obj) {
   push_oop(h_obj());
 }
 void JfrJavaArguments::Parameters::push_jobject(jobject h) {
   JavaValue value(T_ADDRESS);
   value.set_jobject(h);
   push(value);
 }
 void JfrJavaArguments::Parameters::push_jint(jint i) {
   JavaValue value(T_INT);
   value.set_jint(i);
   push(value);
 }
 void JfrJavaArguments::Parameters::push_jfloat(jfloat f) {
   JavaValue value(T_FLOAT);
   value.set_jfloat(f);
   push(value);
 }
 void JfrJavaArguments::Parameters::push_jdouble(jdouble d) {
   JavaValue value(T_DOUBLE);
   value.set_jdouble(d);
   push_large(value);
 }
 void JfrJavaArguments::Parameters::push_jlong(jlong l) {
   JavaValue value(T_LONG);
   value.set_jlong(l);
   push_large(value);
 }
 // including receiver (even if there is none)
 inline int JfrJavaArguments::Parameters::length() const {
   assert(_storage_index >= 1, "invariant");
   return _storage_index;
 }
 inline int JfrJavaArguments::Parameters::java_stack_slots() const {
   return _java_stack_slots;
 }
 const JavaValue& JfrJavaArguments::Parameters::values(int idx) const {
   assert(idx >= 0, "invariant");
   assert(idx < SIZE, "invariant");
   return _storage[idx];
 }
 void JfrJavaArguments::Parameters::copy(JavaCallArguments& args, TRAPS) const {
   DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
   if (has_receiver()) {
     args.set_receiver(Handle(THREAD, receiver()));
   }
   for (int i = 1; i < length(); ++i) {
     switch(values(i).get_type()) {
       case T_BOOLEAN:
       case T_CHAR:
       case T_SHORT:
       case T_INT:
         args.push_int(values(i).get_jint());
         break;
       case T_LONG:
         args.push_long(values(i).get_jlong());
         break;
       case T_FLOAT:
         args.push_float(values(i).get_jfloat());
         break;
       case T_DOUBLE:
         args.push_double(values(i).get_jdouble());
         break;
       case T_OBJECT:
         args.push_oop(Handle(THREAD, (oop)values(i).get_jobject()));
         break;
       case T_ADDRESS:
         args.push_oop(Handle(THREAD, JNIHandles::resolve(values(i).get_jobject())));
         break;
       default:
         ShouldNotReachHere();
     }
   }
 }
 JfrJavaArguments::JfrJavaArguments(JavaValue* result) : _result(result), _klass(NULL), _name(NULL), _signature(NULL), _array_length(-1) {
   assert(result != NULL, "invariant");
 }
 JfrJavaArguments::JfrJavaArguments(JavaValue* result, const char* klass_name, const char* name, const char* signature, TRAPS) :
   _result(result),
   _klass(NULL),
   _name(NULL),
   _signature(NULL),
   _array_length(-1) {
   assert(result != NULL, "invariant");
   if (klass_name != NULL) {
     set_klass(klass_name, CHECK);
   }
   if (name != NULL) {
     set_name(name, CHECK);
   }
   if (signature != NULL) {
     set_signature(signature, THREAD);
   }
 }
 JfrJavaArguments::JfrJavaArguments(JavaValue* result, const Klass* klass, const Symbol* name, const Symbol* signature) : _result(result),
   _klass(NULL),
   _name(NULL),
   _signature(NULL),
   _array_length(-1) {
   assert(result != NULL, "invariant");
   if (klass != NULL) {
     set_klass(klass);
   }
   if (name != NULL) {
     set_name(name);
   }
   if (signature != NULL) {
     set_signature(signature);
   }
 }
 Klass* JfrJavaArguments::klass() const {
   assert(_klass != NULL, "invariant");
   return const_cast<Klass*>(_klass);
 }
 void JfrJavaArguments::set_klass(const char* klass_name, TRAPS) {
   assert(klass_name != NULL, "invariant");
   Symbol* const k_sym = resolve(klass_name, CHECK);
   assert(k_sym != NULL, "invariant");
   const Klass* const klass = resolve(k_sym, CHECK);
   set_klass(klass);
 }
 void JfrJavaArguments::set_klass(const Klass* klass) {
   assert(klass != NULL, "invariant");
   _klass = klass;
 }
 Symbol* JfrJavaArguments::name() const {
   assert(_name != NULL, "invariant");
   return const_cast<Symbol*>(_name);
 }
 void JfrJavaArguments::set_name(const char* name, TRAPS) {
   assert(name != NULL, "invariant");
   const Symbol* const sym = resolve(name, CHECK);
   set_name(sym);
 }
 void JfrJavaArguments::set_name(const Symbol* name) {
   assert(name != NULL, "invariant");
   _name = name;
 }
 Symbol* JfrJavaArguments::signature() const {
   assert(_signature != NULL, "invariant");
   return const_cast<Symbol*>(_signature);
 }
 void JfrJavaArguments::set_signature(const char* signature, TRAPS) {
   assert(signature != NULL, "invariant");
   const Symbol* const sym = resolve(signature, CHECK);
   set_signature(sym);
 }
 void JfrJavaArguments::set_signature(const Symbol* signature) {
   assert(signature != NULL, "invariant");
   _signature = signature;
 }
 int JfrJavaArguments::array_length() const {
   return _array_length;
 }
 void JfrJavaArguments::set_array_length(int length) {
   assert(length >= 0, "invariant");
   _array_length = length;
 }
 JavaValue* JfrJavaArguments::result() const {
   assert(_result != NULL, "invariant");
   return const_cast<JavaValue*>(_result);
 }
 int JfrJavaArguments::length() const {
   return _params.length();
 }
 bool JfrJavaArguments::has_receiver() const {
   return _params.has_receiver();
 }
 oop JfrJavaArguments::receiver() const {
   return _params.receiver();
 }
 void JfrJavaArguments::set_receiver(const oop receiver) {
   _params.set_receiver(receiver);
 }
 void JfrJavaArguments::set_receiver(Handle receiver) {
   _params.set_receiver(receiver);
 }
 void JfrJavaArguments::push_oop(const oop obj) {
   _params.push_oop(obj);
 }
 void JfrJavaArguments::push_oop(Handle h_obj) {
   _params.push_oop(h_obj);
 }
 void JfrJavaArguments::push_jobject(jobject h) {
   _params.push_jobject(h);
 }
 void JfrJavaArguments::push_int(jint i) {
   _params.push_jint(i);
 }
 void JfrJavaArguments::push_float(jfloat f) {
   _params.push_jfloat(f);
 }
 void JfrJavaArguments::push_double(jdouble d) {
   _params.push_jdouble(d);
 }
 void JfrJavaArguments::push_long(jlong l) {
   _params.push_jlong(l);
 }
 const JavaValue& JfrJavaArguments::param(int idx) const {
   return _params.values(idx);
 }
 int JfrJavaArguments::java_call_arg_slots() const {
   return _params.java_stack_slots();
 }
 void JfrJavaArguments::copy(JavaCallArguments& args, TRAPS) {
   _params.copy(args, THREAD);
 }
 void JfrJavaCall::call_static(JfrJavaArguments* args, TRAPS) {
   assert(args != NULL, "invariant");
   DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
   ResourceMark rm(THREAD);
   HandleMark hm(THREAD);
   JavaCallArguments jcas(args->java_call_arg_slots());
   args->copy(jcas, CHECK);
   JavaCalls::call_static(args->result(), args->klass(), args->name(), args->signature(), &jcas, THREAD);
 }
 void JfrJavaCall::call_special(JfrJavaArguments* args, TRAPS) {
   assert(args != NULL, "invariant");
   assert(args->has_receiver(), "invariant");
   DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
   ResourceMark rm(THREAD);
   HandleMark hm(THREAD);
   JavaCallArguments jcas(args->java_call_arg_slots());
   args->copy(jcas, CHECK);
   JavaCalls::call_special(args->result(), args->klass(), args->name(), args->signature(), &jcas, THREAD);
 }
 void JfrJavaCall::call_virtual(JfrJavaArguments* args, TRAPS) {
   assert(args != NULL, "invariant");
   assert(args->has_receiver(), "invariant");
   DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD));
   ResourceMark rm(THREAD);
   HandleMark hm(THREAD);
   JavaCallArguments jcas(args->java_call_arg_slots());
   args->copy(jcas, CHECK);
   JavaCalls::call_virtual(args->result(), args->klass(), args->name(), args->signature(), &jcas, THREAD);
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/jni/jfrJavaCall.cpp@02a4c08a8777 (annotated)

src/share/vm/jfr/jni/jfrJavaCall.cpp