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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
451
src/hotspot/share/aot/aotCompiledMethod.cpp
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451
src/hotspot/share/aot/aotCompiledMethod.cpp
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/*
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* Copyright (c) 2016, 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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#include "precompiled.hpp"
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#include "aot/aotCodeHeap.hpp"
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#include "aot/aotLoader.hpp"
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#include "aot/compiledIC_aot.hpp"
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#include "code/codeCache.hpp"
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#include "code/compiledIC.hpp"
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#include "code/nativeInst.hpp"
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#include "compiler/compilerOracle.hpp"
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#include "gc/shared/cardTableModRefBS.hpp"
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#include "gc/shared/collectedHeap.hpp"
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#include "gc/shared/gcLocker.hpp"
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#include "jvmci/compilerRuntime.hpp"
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#include "jvmci/jvmciRuntime.hpp"
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#include "oops/method.hpp"
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#include "runtime/java.hpp"
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#include "runtime/os.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "utilities/xmlstream.hpp"
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#include <stdio.h>
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#if 0
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static void metadata_oops_do(Metadata** metadata_begin, Metadata **metadata_end, OopClosure* f) {
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// Visit the metadata/oops section
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for (Metadata** p = metadata_begin; p < metadata_end; p++) {
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Metadata* m = *p;
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intptr_t meta = (intptr_t)m;
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if ((meta & 1) == 1) {
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// already resolved
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m = (Metadata*)(meta & ~1);
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} else {
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continue;
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}
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assert(Metaspace::contains(m), "");
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if (m->is_method()) {
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m = ((Method*)m)->method_holder();
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}
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assert(m->is_klass(), "must be");
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oop o = ((Klass*)m)->klass_holder();
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if (o != NULL) {
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f->do_oop(&o);
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}
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}
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}
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#endif
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bool AOTCompiledMethod::do_unloading_oops(address low_boundary, BoolObjectClosure* is_alive, bool unloading_occurred) {
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return false;
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}
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oop AOTCompiledMethod::oop_at(int index) const {
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if (index == 0) { // 0 is reserved
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return NULL;
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}
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Metadata** entry = _metadata_got + (index - 1);
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intptr_t meta = (intptr_t)*entry;
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if ((meta & 1) == 1) {
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// already resolved
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Klass* k = (Klass*)(meta & ~1);
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return k->java_mirror();
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}
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// The entry is string which we need to resolve.
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const char* meta_name = _heap->get_name_at((int)meta);
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int klass_len = build_u2_from((address)meta_name);
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const char* klass_name = meta_name + 2;
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// Quick check the current method's holder.
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Klass* k = _method->method_holder();
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ResourceMark rm; // for signature_name()
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if (strncmp(k->signature_name(), klass_name, klass_len) != 0) { // Does not match?
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// Search klass in got cells in DSO which have this compiled method.
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k = _heap->get_klass_from_got(klass_name, klass_len, _method);
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}
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int method_name_len = build_u2_from((address)klass_name + klass_len);
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guarantee(method_name_len == 0, "only klass is expected here");
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meta = ((intptr_t)k) | 1;
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*entry = (Metadata*)meta; // Should be atomic on x64
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return k->java_mirror();
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}
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Metadata* AOTCompiledMethod::metadata_at(int index) const {
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if (index == 0) { // 0 is reserved
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return NULL;
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}
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assert(index - 1 < _metadata_size, "");
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{
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Metadata** entry = _metadata_got + (index - 1);
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intptr_t meta = (intptr_t)*entry;
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if ((meta & 1) == 1) {
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// already resolved
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Metadata *m = (Metadata*)(meta & ~1);
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return m;
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}
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// The entry is string which we need to resolve.
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const char* meta_name = _heap->get_name_at((int)meta);
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int klass_len = build_u2_from((address)meta_name);
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const char* klass_name = meta_name + 2;
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// Quick check the current method's holder.
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Klass* k = _method->method_holder();
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bool klass_matched = true;
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ResourceMark rm; // for signature_name() and find_method()
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if (strncmp(k->signature_name(), klass_name, klass_len) != 0) { // Does not match?
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// Search klass in got cells in DSO which have this compiled method.
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k = _heap->get_klass_from_got(klass_name, klass_len, _method);
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klass_matched = false;
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}
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int method_name_len = build_u2_from((address)klass_name + klass_len);
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if (method_name_len == 0) { // Array or Klass name only?
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meta = ((intptr_t)k) | 1;
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*entry = (Metadata*)meta; // Should be atomic on x64
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return (Metadata*)k;
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} else { // Method
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// Quick check the current method's name.
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Method* m = _method;
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int signature_len = build_u2_from((address)klass_name + klass_len + 2 + method_name_len);
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int full_len = 2 + klass_len + 2 + method_name_len + 2 + signature_len;
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if (!klass_matched || memcmp(_name, meta_name, full_len) != 0) { // Does not match?
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Thread* thread = Thread::current();
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const char* method_name = klass_name + klass_len;
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m = AOTCodeHeap::find_method(k, thread, method_name);
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}
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meta = ((intptr_t)m) | 1;
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*entry = (Metadata*)meta; // Should be atomic on x64
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return (Metadata*)m;
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}
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}
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ShouldNotReachHere(); return NULL;
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}
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bool AOTCompiledMethod::make_not_entrant_helper(int new_state) {
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// Make sure the method is not flushed in case of a safepoint in code below.
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methodHandle the_method(method());
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NoSafepointVerifier nsv;
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{
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// Enter critical section. Does not block for safepoint.
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MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
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if (*_state_adr == new_state) {
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// another thread already performed this transition so nothing
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// to do, but return false to indicate this.
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return false;
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}
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// Change state
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OrderAccess::storestore();
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*_state_adr = new_state;
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// Log the transition once
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log_state_change();
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#ifdef TIERED
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// Remain non-entrant forever
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if (new_state == not_entrant && method() != NULL) {
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method()->set_aot_code(NULL);
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}
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#endif
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// Remove AOTCompiledMethod from method.
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if (method() != NULL && (method()->code() == this ||
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method()->from_compiled_entry() == verified_entry_point())) {
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HandleMark hm;
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method()->clear_code(false /* already owns Patching_lock */);
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}
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} // leave critical region under Patching_lock
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if (TraceCreateZombies) {
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ResourceMark m;
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const char *new_state_str = (new_state == not_entrant) ? "not entrant" : "not used";
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tty->print_cr("aot method <" INTPTR_FORMAT "> %s code made %s", p2i(this), this->method() ? this->method()->name_and_sig_as_C_string() : "null", new_state_str);
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}
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return true;
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}
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bool AOTCompiledMethod::make_entrant() {
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assert(!method()->is_old(), "reviving evolved method!");
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assert(*_state_adr != not_entrant, "%s", method()->has_aot_code() ? "has_aot_code() not cleared" : "caller didn't check has_aot_code()");
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// Make sure the method is not flushed in case of a safepoint in code below.
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methodHandle the_method(method());
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NoSafepointVerifier nsv;
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{
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// Enter critical section. Does not block for safepoint.
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MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
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if (*_state_adr == in_use) {
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// another thread already performed this transition so nothing
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// to do, but return false to indicate this.
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return false;
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}
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// Change state
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OrderAccess::storestore();
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*_state_adr = in_use;
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// Log the transition once
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log_state_change();
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} // leave critical region under Patching_lock
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if (TraceCreateZombies) {
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ResourceMark m;
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tty->print_cr("aot method <" INTPTR_FORMAT "> %s code made entrant", p2i(this), this->method() ? this->method()->name_and_sig_as_C_string() : "null");
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}
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return true;
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}
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// We don't have full dependencies for AOT methods, so flushing is
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// more conservative than for nmethods.
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void AOTCompiledMethod::flush_evol_dependents_on(InstanceKlass* dependee) {
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if (is_java_method()) {
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cleanup_inline_caches();
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mark_for_deoptimization();
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make_not_entrant();
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}
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}
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// Iterate over metadata calling this function. Used by RedefineClasses
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// Copied from nmethod::metadata_do
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void AOTCompiledMethod::metadata_do(void f(Metadata*)) {
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address low_boundary = verified_entry_point();
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{
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// Visit all immediate references that are embedded in the instruction stream.
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RelocIterator iter(this, low_boundary);
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while (iter.next()) {
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if (iter.type() == relocInfo::metadata_type ) {
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metadata_Relocation* r = iter.metadata_reloc();
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// In this metadata, we must only follow those metadatas directly embedded in
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// the code. Other metadatas (oop_index>0) are seen as part of
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// the metadata section below.
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assert(1 == (r->metadata_is_immediate()) +
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(r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()),
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"metadata must be found in exactly one place");
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if (r->metadata_is_immediate() && r->metadata_value() != NULL) {
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Metadata* md = r->metadata_value();
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if (md != _method) f(md);
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}
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} else if (iter.type() == relocInfo::virtual_call_type) {
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// Check compiledIC holders associated with this nmethod
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CompiledIC *ic = CompiledIC_at(&iter);
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if (ic->is_icholder_call()) {
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CompiledICHolder* cichk = ic->cached_icholder();
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f(cichk->holder_method());
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f(cichk->holder_klass());
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} else {
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// Get Klass* or NULL (if value is -1) from GOT cell of virtual call PLT stub.
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Metadata* ic_oop = ic->cached_metadata();
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if (ic_oop != NULL) {
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f(ic_oop);
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}
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}
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} else if (iter.type() == relocInfo::static_call_type ||
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iter.type() == relocInfo::opt_virtual_call_type){
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// Check Method* in AOT c2i stub for other calls.
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Metadata* meta = (Metadata*)nativeLoadGot_at(nativePltCall_at(iter.addr())->plt_c2i_stub())->data();
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if (meta != NULL) {
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f(meta);
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}
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}
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}
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}
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// Visit the metadata section
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for (Metadata** p = metadata_begin(); p < metadata_end(); p++) {
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Metadata* m = *p;
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intptr_t meta = (intptr_t)m;
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if ((meta & 1) == 1) {
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// already resolved
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m = (Metadata*)(meta & ~1);
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} else {
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continue;
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}
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assert(Metaspace::contains(m), "");
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f(m);
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}
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// Visit metadata not embedded in the other places.
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if (_method != NULL) f(_method);
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}
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void AOTCompiledMethod::print() const {
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print_on(tty, "AOTCompiledMethod");
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}
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void AOTCompiledMethod::print_on(outputStream* st) const {
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print_on(st, "AOTCompiledMethod");
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}
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// Print out more verbose output usually for a newly created aot method.
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void AOTCompiledMethod::print_on(outputStream* st, const char* msg) const {
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if (st != NULL) {
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ttyLocker ttyl;
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st->print("%7d ", (int) st->time_stamp().milliseconds());
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st->print("%4d ", _aot_id); // print compilation number
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st->print(" aot[%2d]", _heap->dso_id());
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// Stubs have _method == NULL
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if (_method == NULL) {
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st->print(" %s", _name);
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} else {
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ResourceMark m;
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st->print(" %s", _method->name_and_sig_as_C_string());
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}
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if (Verbose) {
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st->print(" entry at " INTPTR_FORMAT, p2i(_code));
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}
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if (msg != NULL) {
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st->print(" %s", msg);
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}
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st->cr();
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}
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}
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void AOTCompiledMethod::print_value_on(outputStream* st) const {
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st->print("AOTCompiledMethod ");
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print_on(st, NULL);
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}
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// Print a short set of xml attributes to identify this aot method. The
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// output should be embedded in some other element.
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void AOTCompiledMethod::log_identity(xmlStream* log) const {
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log->print(" aot_id='%d'", _aot_id);
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log->print(" aot='%2d'", _heap->dso_id());
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}
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void AOTCompiledMethod::log_state_change() const {
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if (LogCompilation) {
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ResourceMark m;
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if (xtty != NULL) {
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ttyLocker ttyl; // keep the following output all in one block
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if (*_state_adr == not_entrant) {
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xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'",
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os::current_thread_id());
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} else if (*_state_adr == not_used) {
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xtty->begin_elem("make_not_used thread='" UINTX_FORMAT "'",
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os::current_thread_id());
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} else if (*_state_adr == in_use) {
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xtty->begin_elem("make_entrant thread='" UINTX_FORMAT "'",
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os::current_thread_id());
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}
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log_identity(xtty);
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xtty->stamp();
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xtty->end_elem();
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}
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}
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if (PrintCompilation) {
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ResourceMark m;
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if (*_state_adr == not_entrant) {
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print_on(tty, "made not entrant");
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} else if (*_state_adr == not_used) {
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print_on(tty, "made not used");
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} else if (*_state_adr == in_use) {
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print_on(tty, "made entrant");
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}
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}
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}
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NativeInstruction* PltNativeCallWrapper::get_load_instruction(virtual_call_Relocation* r) const {
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return nativeLoadGot_at(_call->plt_load_got());
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}
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void PltNativeCallWrapper::verify_resolve_call(address dest) const {
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CodeBlob* db = CodeCache::find_blob_unsafe(dest);
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if (db == NULL) {
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assert(dest == _call->plt_resolve_call(), "sanity");
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}
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}
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void PltNativeCallWrapper::set_to_interpreted(const methodHandle& method, CompiledICInfo& info) {
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assert(!info.to_aot(), "only for nmethod");
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CompiledPltStaticCall* csc = CompiledPltStaticCall::at(instruction_address());
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csc->set_to_interpreted(method, info.entry());
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}
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NativeCallWrapper* AOTCompiledMethod::call_wrapper_at(address call) const {
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return new PltNativeCallWrapper((NativePltCall*) call);
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}
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NativeCallWrapper* AOTCompiledMethod::call_wrapper_before(address return_pc) const {
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return new PltNativeCallWrapper(nativePltCall_before(return_pc));
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}
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CompiledStaticCall* AOTCompiledMethod::compiledStaticCall_at(Relocation* call_site) const {
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return CompiledPltStaticCall::at(call_site);
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}
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CompiledStaticCall* AOTCompiledMethod::compiledStaticCall_at(address call_site) const {
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return CompiledPltStaticCall::at(call_site);
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}
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CompiledStaticCall* AOTCompiledMethod::compiledStaticCall_before(address return_addr) const {
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return CompiledPltStaticCall::before(return_addr);
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}
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address AOTCompiledMethod::call_instruction_address(address pc) const {
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NativePltCall* pltcall = nativePltCall_before(pc);
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return pltcall->instruction_address();
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}
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bool AOTCompiledMethod::is_evol_dependent_on(Klass* dependee) {
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return !is_aot_runtime_stub() && _heap->is_dependent_method(dependee, this);
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}
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void AOTCompiledMethod::clear_inline_caches() {
|
||||
assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint");
|
||||
if (is_zombie()) {
|
||||
return;
|
||||
}
|
||||
|
||||
RelocIterator iter(this);
|
||||
while (iter.next()) {
|
||||
iter.reloc()->clear_inline_cache();
|
||||
if (iter.type() == relocInfo::opt_virtual_call_type) {
|
||||
CompiledIC* cic = CompiledIC_at(&iter);
|
||||
assert(cic->is_clean(), "!");
|
||||
nativePltCall_at(iter.addr())->set_stub_to_clean();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue