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8199263: Split interfaceSupport.hpp to not require including .inline.hpp files
InterfaceSupport.hpp is an inline file so moved to interfaceSupport.inline.hpp and stopped including it in .hpp files Reviewed-by: stefank, rehn, kvn
This commit is contained in:
Coleen Phillimore
parent
ec14629449
commit
fde89a34d0
212 changed files with 532 additions and 374 deletions
571
src/hotspot/share/runtime/interfaceSupport.inline.hpp
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571
src/hotspot/share/runtime/interfaceSupport.inline.hpp
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@ -0,0 +1,571 @@
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/*
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* Copyright (c) 1997, 2017, 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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*/
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#ifndef SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP
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#define SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP
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#include "gc/shared/gcLocker.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/mutexLocker.hpp"
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#include "runtime/orderAccess.hpp"
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#include "runtime/os.hpp"
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#include "runtime/safepointMechanism.inline.hpp"
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#include "runtime/thread.hpp"
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#include "runtime/vm_operations.hpp"
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#include "utilities/globalDefinitions.hpp"
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#include "utilities/macros.hpp"
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#include "utilities/preserveException.hpp"
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// Wrapper for all entry points to the virtual machine.
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// InterfaceSupport provides functionality used by the VM_LEAF_BASE and
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// VM_ENTRY_BASE macros. These macros are used to guard entry points into
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// the VM and perform checks upon leave of the VM.
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class InterfaceSupport: AllStatic {
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# ifdef ASSERT
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public:
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static long _scavenge_alot_counter;
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static long _fullgc_alot_counter;
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static long _number_of_calls;
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static long _fullgc_alot_invocation;
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// Helper methods used to implement +ScavengeALot and +FullGCALot
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static void check_gc_alot() { if (ScavengeALot || FullGCALot) gc_alot(); }
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static void gc_alot();
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static void walk_stack_from(vframe* start_vf);
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static void walk_stack();
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static void zombieAll();
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static void unlinkSymbols();
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static void deoptimizeAll();
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static void stress_derived_pointers();
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static void verify_stack();
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static void verify_last_frame();
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# endif
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public:
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static void serialize_thread_state_with_handler(JavaThread* thread) {
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serialize_thread_state_internal(thread, true);
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}
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// Should only call this if we know that we have a proper SEH set up.
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static void serialize_thread_state(JavaThread* thread) {
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serialize_thread_state_internal(thread, false);
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}
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private:
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static void serialize_thread_state_internal(JavaThread* thread, bool needs_exception_handler) {
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// Make sure new state is seen by VM thread
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if (os::is_MP()) {
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if (UseMembar) {
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// Force a fence between the write above and read below
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OrderAccess::fence();
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} else {
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// store to serialize page so VM thread can do pseudo remote membar
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if (needs_exception_handler) {
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os::write_memory_serialize_page_with_handler(thread);
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} else {
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os::write_memory_serialize_page(thread);
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}
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}
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}
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}
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};
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// Basic class for all thread transition classes.
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class ThreadStateTransition : public StackObj {
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protected:
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JavaThread* _thread;
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public:
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ThreadStateTransition(JavaThread *thread) {
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_thread = thread;
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assert(thread != NULL && thread->is_Java_thread(), "must be Java thread");
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}
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// Change threadstate in a manner, so safepoint can detect changes.
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// Time-critical: called on exit from every runtime routine
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static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) {
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assert(from != _thread_in_Java, "use transition_from_java");
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assert(from != _thread_in_native, "use transition_from_native");
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assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states");
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assert(thread->thread_state() == from, "coming from wrong thread state");
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// Change to transition state
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thread->set_thread_state((JavaThreadState)(from + 1));
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InterfaceSupport::serialize_thread_state(thread);
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SafepointMechanism::block_if_requested(thread);
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thread->set_thread_state(to);
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CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();)
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}
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// transition_and_fence must be used on any thread state transition
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// where there might not be a Java call stub on the stack, in
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// particular on Windows where the Structured Exception Handler is
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// set up in the call stub. os::write_memory_serialize_page() can
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// fault and we can't recover from it on Windows without a SEH in
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// place.
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static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) {
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assert(thread->thread_state() == from, "coming from wrong thread state");
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assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states");
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// Change to transition state
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thread->set_thread_state((JavaThreadState)(from + 1));
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InterfaceSupport::serialize_thread_state_with_handler(thread);
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SafepointMechanism::block_if_requested(thread);
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thread->set_thread_state(to);
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CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();)
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}
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// Same as above, but assumes from = _thread_in_Java. This is simpler, since we
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// never block on entry to the VM. This will break the code, since e.g. preserve arguments
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// have not been setup.
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static inline void transition_from_java(JavaThread *thread, JavaThreadState to) {
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assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state");
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thread->set_thread_state(to);
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}
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static inline void transition_from_native(JavaThread *thread, JavaThreadState to) {
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assert((to & 1) == 0, "odd numbers are transitions states");
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assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state");
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// Change to transition state
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thread->set_thread_state(_thread_in_native_trans);
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InterfaceSupport::serialize_thread_state_with_handler(thread);
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// We never install asynchronous exceptions when coming (back) in
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// to the runtime from native code because the runtime is not set
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// up to handle exceptions floating around at arbitrary points.
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if (SafepointMechanism::poll(thread) || thread->is_suspend_after_native()) {
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JavaThread::check_safepoint_and_suspend_for_native_trans(thread);
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// Clear unhandled oops anywhere where we could block, even if we don't.
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CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();)
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}
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thread->set_thread_state(to);
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}
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protected:
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void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); }
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void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); }
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void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); }
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void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); }
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};
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class ThreadInVMForHandshake : public ThreadStateTransition {
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const JavaThreadState _original_state;
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void transition_back() {
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// This can be invoked from transition states and must return to the original state properly
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assert(_thread->thread_state() == _thread_in_vm, "should only call when leaving VM after handshake");
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_thread->set_thread_state(_thread_in_vm_trans);
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InterfaceSupport::serialize_thread_state(_thread);
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SafepointMechanism::block_if_requested(_thread);
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_thread->set_thread_state(_original_state);
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}
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public:
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ThreadInVMForHandshake(JavaThread* thread) : ThreadStateTransition(thread),
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_original_state(thread->thread_state()) {
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if (thread->has_last_Java_frame()) {
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thread->frame_anchor()->make_walkable(thread);
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}
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thread->set_thread_state(_thread_in_vm);
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}
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~ThreadInVMForHandshake() {
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transition_back();
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}
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};
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class ThreadInVMfromJava : public ThreadStateTransition {
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public:
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ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) {
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trans_from_java(_thread_in_vm);
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}
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~ThreadInVMfromJava() {
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if (_thread->stack_yellow_reserved_zone_disabled()) {
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_thread->enable_stack_yellow_reserved_zone();
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}
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trans(_thread_in_vm, _thread_in_Java);
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// Check for pending. async. exceptions or suspends.
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if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition();
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}
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};
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class ThreadInVMfromUnknown {
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private:
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JavaThread* _thread;
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public:
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ThreadInVMfromUnknown() : _thread(NULL) {
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Thread* t = Thread::current();
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if (t->is_Java_thread()) {
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JavaThread* t2 = (JavaThread*) t;
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if (t2->thread_state() == _thread_in_native) {
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_thread = t2;
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ThreadStateTransition::transition_from_native(t2, _thread_in_vm);
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// Used to have a HandleMarkCleaner but that is dangerous as
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// it could free a handle in our (indirect, nested) caller.
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// We expect any handles will be short lived and figure we
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// don't need an actual HandleMark.
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}
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}
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}
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~ThreadInVMfromUnknown() {
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if (_thread) {
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ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native);
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}
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}
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};
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class ThreadInVMfromNative : public ThreadStateTransition {
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public:
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ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) {
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trans_from_native(_thread_in_vm);
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}
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~ThreadInVMfromNative() {
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trans_and_fence(_thread_in_vm, _thread_in_native);
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}
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};
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class ThreadToNativeFromVM : public ThreadStateTransition {
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public:
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ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) {
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// We are leaving the VM at this point and going directly to native code.
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// Block, if we are in the middle of a safepoint synchronization.
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assert(!thread->owns_locks(), "must release all locks when leaving VM");
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thread->frame_anchor()->make_walkable(thread);
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trans_and_fence(_thread_in_vm, _thread_in_native);
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// Check for pending. async. exceptions or suspends.
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if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false);
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}
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~ThreadToNativeFromVM() {
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trans_from_native(_thread_in_vm);
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assert(!_thread->is_pending_jni_exception_check(), "Pending JNI Exception Check");
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// We don't need to clear_walkable because it will happen automagically when we return to java
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}
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};
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class ThreadBlockInVM : public ThreadStateTransition {
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public:
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ThreadBlockInVM(JavaThread *thread)
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: ThreadStateTransition(thread) {
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// Once we are blocked vm expects stack to be walkable
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thread->frame_anchor()->make_walkable(thread);
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trans_and_fence(_thread_in_vm, _thread_blocked);
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}
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~ThreadBlockInVM() {
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trans_and_fence(_thread_blocked, _thread_in_vm);
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// We don't need to clear_walkable because it will happen automagically when we return to java
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}
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};
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// This special transition class is only used to prevent asynchronous exceptions
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// from being installed on vm exit in situations where we can't tolerate them.
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// See bugs: 4324348, 4854693, 4998314, 5040492, 5050705.
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class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition {
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public:
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ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) {
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trans_from_java(_thread_in_vm);
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}
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~ThreadInVMfromJavaNoAsyncException() {
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if (_thread->stack_yellow_reserved_zone_disabled()) {
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_thread->enable_stack_yellow_reserved_zone();
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}
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trans(_thread_in_vm, _thread_in_Java);
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// NOTE: We do not check for pending. async. exceptions.
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// If we did and moved the pending async exception over into the
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// pending exception field, we would need to deopt (currently C2
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// only). However, to do so would require that we transition back
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// to the _thread_in_vm state. Instead we postpone the handling of
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// the async exception.
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// Check for pending. suspends only.
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if (_thread->has_special_runtime_exit_condition())
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_thread->handle_special_runtime_exit_condition(false);
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}
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};
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// Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro.
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// Can be used to verify properties on enter/exit of the VM.
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#ifdef ASSERT
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class VMEntryWrapper {
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public:
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VMEntryWrapper();
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~VMEntryWrapper();
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};
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class VMNativeEntryWrapper {
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public:
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VMNativeEntryWrapper() {
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if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot();
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}
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~VMNativeEntryWrapper() {
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if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot();
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}
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};
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#endif
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// VM-internal runtime interface support
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#ifdef ASSERT
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class RuntimeHistogramElement : public HistogramElement {
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public:
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RuntimeHistogramElement(const char* name);
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};
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#define TRACE_CALL(result_type, header) \
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InterfaceSupport::_number_of_calls++; \
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if (CountRuntimeCalls) { \
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static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \
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if (e != NULL) e->increment_count(); \
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}
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#else
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#define TRACE_CALL(result_type, header) \
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/* do nothing */
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#endif
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// LEAF routines do not lock, GC or throw exceptions
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#define VM_LEAF_BASE(result_type, header) \
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TRACE_CALL(result_type, header) \
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debug_only(NoHandleMark __hm;) \
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os::verify_stack_alignment(); \
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/* begin of body */
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#define VM_ENTRY_BASE_FROM_LEAF(result_type, header, thread) \
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TRACE_CALL(result_type, header) \
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debug_only(ResetNoHandleMark __rnhm;) \
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HandleMarkCleaner __hm(thread); \
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Thread* THREAD = thread; \
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os::verify_stack_alignment(); \
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/* begin of body */
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// ENTRY routines may lock, GC and throw exceptions
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#define VM_ENTRY_BASE(result_type, header, thread) \
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TRACE_CALL(result_type, header) \
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HandleMarkCleaner __hm(thread); \
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Thread* THREAD = thread; \
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os::verify_stack_alignment(); \
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/* begin of body */
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// QUICK_ENTRY routines behave like ENTRY but without a handle mark
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#define VM_QUICK_ENTRY_BASE(result_type, header, thread) \
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TRACE_CALL(result_type, header) \
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debug_only(NoHandleMark __hm;) \
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Thread* THREAD = thread; \
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os::verify_stack_alignment(); \
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/* begin of body */
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// Definitions for IRT (Interpreter Runtime)
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// (thread is an argument passed in to all these routines)
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#define IRT_ENTRY(result_type, header) \
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result_type header { \
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ThreadInVMfromJava __tiv(thread); \
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VM_ENTRY_BASE(result_type, header, thread) \
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debug_only(VMEntryWrapper __vew;)
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#define IRT_LEAF(result_type, header) \
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result_type header { \
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VM_LEAF_BASE(result_type, header) \
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debug_only(NoSafepointVerifier __nspv(true);)
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#define IRT_ENTRY_NO_ASYNC(result_type, header) \
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result_type header { \
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ThreadInVMfromJavaNoAsyncException __tiv(thread); \
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VM_ENTRY_BASE(result_type, header, thread) \
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debug_only(VMEntryWrapper __vew;)
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#define IRT_END }
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// Definitions for JRT (Java (Compiler/Shared) Runtime)
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#define JRT_ENTRY(result_type, header) \
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result_type header { \
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ThreadInVMfromJava __tiv(thread); \
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VM_ENTRY_BASE(result_type, header, thread) \
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debug_only(VMEntryWrapper __vew;)
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#define JRT_LEAF(result_type, header) \
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result_type header { \
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VM_LEAF_BASE(result_type, header) \
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debug_only(JRTLeafVerifier __jlv;)
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#define JRT_ENTRY_NO_ASYNC(result_type, header) \
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result_type header { \
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ThreadInVMfromJavaNoAsyncException __tiv(thread); \
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VM_ENTRY_BASE(result_type, header, thread) \
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debug_only(VMEntryWrapper __vew;)
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|
||||
// Same as JRT Entry but allows for return value after the safepoint
|
||||
// to get back into Java from the VM
|
||||
#define JRT_BLOCK_ENTRY(result_type, header) \
|
||||
result_type header { \
|
||||
TRACE_CALL(result_type, header) \
|
||||
HandleMarkCleaner __hm(thread);
|
||||
|
||||
#define JRT_BLOCK \
|
||||
{ \
|
||||
ThreadInVMfromJava __tiv(thread); \
|
||||
Thread* THREAD = thread; \
|
||||
debug_only(VMEntryWrapper __vew;)
|
||||
|
||||
#define JRT_BLOCK_NO_ASYNC \
|
||||
{ \
|
||||
ThreadInVMfromJavaNoAsyncException __tiv(thread); \
|
||||
Thread* THREAD = thread; \
|
||||
debug_only(VMEntryWrapper __vew;)
|
||||
|
||||
#define JRT_BLOCK_END }
|
||||
|
||||
#define JRT_END }
|
||||
|
||||
// Definitions for JNI
|
||||
|
||||
#define JNI_ENTRY(result_type, header) \
|
||||
JNI_ENTRY_NO_PRESERVE(result_type, header) \
|
||||
WeakPreserveExceptionMark __wem(thread);
|
||||
|
||||
#define JNI_ENTRY_NO_PRESERVE(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_ENTRY_BASE(result_type, header, thread)
|
||||
|
||||
|
||||
// Ensure that the VMNativeEntryWrapper constructor, which can cause
|
||||
// a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE).
|
||||
#define JNI_QUICK_ENTRY(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_QUICK_ENTRY_BASE(result_type, header, thread)
|
||||
|
||||
|
||||
#define JNI_LEAF(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \
|
||||
VM_LEAF_BASE(result_type, header)
|
||||
|
||||
|
||||
// Close the routine and the extern "C"
|
||||
#define JNI_END } }
|
||||
|
||||
|
||||
|
||||
// Definitions for JVM
|
||||
|
||||
#define JVM_ENTRY(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_ENTRY_BASE(result_type, header, thread)
|
||||
|
||||
|
||||
#define JVM_ENTRY_NO_ENV(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread = JavaThread::current(); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_ENTRY_BASE(result_type, header, thread)
|
||||
|
||||
|
||||
#define JVM_QUICK_ENTRY(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_QUICK_ENTRY_BASE(result_type, header, thread)
|
||||
|
||||
|
||||
#define JVM_LEAF(result_type, header) \
|
||||
extern "C" { \
|
||||
result_type JNICALL header { \
|
||||
VM_Exit::block_if_vm_exited(); \
|
||||
VM_LEAF_BASE(result_type, header)
|
||||
|
||||
|
||||
#define JVM_ENTRY_FROM_LEAF(env, result_type, header) \
|
||||
{ { \
|
||||
JavaThread* thread=JavaThread::thread_from_jni_environment(env); \
|
||||
ThreadInVMfromNative __tiv(thread); \
|
||||
debug_only(VMNativeEntryWrapper __vew;) \
|
||||
VM_ENTRY_BASE_FROM_LEAF(result_type, header, thread)
|
||||
|
||||
|
||||
#define JVM_END } }
|
||||
|
||||
#endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_INLINE_HPP
|
||||
Loading…
Add table
Add a link
Reference in a new issue