jdk-24/src/hotspot/share/compiler/compilerEvent.cpp
2020-09-14 07:48:59 +00:00

168 lines
5.9 KiB
C++

/*
* Copyright (c) 2020, 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 "ci/ciMethod.hpp"
#include "compiler/compilerEvent.hpp"
#include "jfr/jfr.hpp"
#include "jfr/jfrEvents.hpp"
#include "jfr/metadata/jfrSerializer.hpp"
#include "runtime/semaphore.inline.hpp"
#include "utilities/growableArray.hpp"
// Synchronizes access to phases_names.
class PhaseTypeGuard : public StackObj {
private:
static Semaphore _mutex_semaphore;
bool _enabled;
public:
PhaseTypeGuard(bool enabled=true) {
if (enabled) {
_mutex_semaphore.wait();
_enabled = true;
} else {
_enabled = false;
}
}
~PhaseTypeGuard() {
if (_enabled) {
_mutex_semaphore.signal();
}
}
};
Semaphore PhaseTypeGuard::_mutex_semaphore(1);
// Table for mapping compiler phases names to int identifiers.
static GrowableArray<const char*>* phase_names = NULL;
class CompilerPhaseTypeConstant : public JfrSerializer {
public:
void serialize(JfrCheckpointWriter& writer) {
PhaseTypeGuard guard;
assert(phase_names != NULL, "invariant");
assert(phase_names->is_nonempty(), "invariant");
const u4 nof_entries = phase_names->length();
writer.write_count(nof_entries);
for (u4 i = 0; i < nof_entries; i++) {
writer.write_key(i);
writer.write(phase_names->at(i));
}
}
};
static int lookup_phase(const char* phase_name) {
for (int i = 0; i < phase_names->length(); i++) {
const char* name = phase_names->at(i);
if (strcmp(name, phase_name) == 0) {
return i;
}
}
return -1;
}
int CompilerEvent::PhaseEvent::get_phase_id(const char* phase_name, bool may_exist, bool use_strdup, bool sync) {
int index;
bool register_jfr_serializer = false;
{
PhaseTypeGuard guard(sync);
if (phase_names == NULL) {
phase_names = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<const char*>(100, mtCompiler);
register_jfr_serializer = true;
} else if (may_exist) {
index = lookup_phase(phase_name);
if (index != -1) {
return index;
}
} else {
assert((index = lookup_phase(phase_name)) == -1, "phase name \"%s\" already registered: %d", phase_name, index);
}
index = phase_names->length();
phase_names->append(use_strdup ? strdup(phase_name) : phase_name);
}
if (register_jfr_serializer) {
JfrSerializer::register_serializer(TYPE_COMPILERPHASETYPE, false, new CompilerPhaseTypeConstant());
} else if (Jfr::is_recording()) {
// serialize new phase.
JfrCheckpointWriter writer;
writer.write_type(TYPE_COMPILERPHASETYPE);
writer.write_count(1);
writer.write_key(index);
writer.write(phase_name);
}
return index;
}
void CompilerEvent::CompilationEvent::post(EventCompilation& event, int compile_id, CompilerType compiler_type, Method* method, int compile_level, bool success, bool is_osr, int code_size, int inlined_bytecodes) {
event.set_compileId(compile_id);
event.set_compiler(compiler_type);
event.set_method(method);
event.set_compileLevel((short)compile_level);
event.set_succeded(success);
event.set_isOsr(is_osr);
event.set_codeSize(code_size);
event.set_inlinedBytes(inlined_bytecodes);
event.commit();
}
void CompilerEvent::CompilationFailureEvent::post(EventCompilationFailure& event, int compile_id, const char* reason) {
event.set_compileId(compile_id);
event.set_failureMessage(reason);
event.commit();
}
void CompilerEvent::PhaseEvent::post(EventCompilerPhase& event, const Ticks& start_time, int phase, int compile_id, int level) {
event.set_starttime(start_time);
event.set_phase((u1) phase);
event.set_compileId(compile_id);
event.set_phaseLevel((short)level);
event.commit();
}
void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, const JfrStructCalleeMethod& callee, bool success, const char* msg, int bci) {
event.set_compileId(compile_id);
event.set_caller(caller);
event.set_callee(callee);
event.set_succeeded(success);
event.set_message(msg);
event.set_bci(bci);
event.commit();
}
void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, Method* callee, bool success, const char* msg, int bci) {
JfrStructCalleeMethod callee_struct;
callee_struct.set_type(callee->klass_name()->as_utf8());
callee_struct.set_name(callee->name()->as_utf8());
callee_struct.set_descriptor(callee->signature()->as_utf8());
post(event, compile_id, caller, callee_struct, success, msg, bci);
}
void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, ciMethod* callee, bool success, const char* msg, int bci) {
JfrStructCalleeMethod callee_struct;
callee_struct.set_type(callee->holder()->name()->as_utf8());
callee_struct.set_name(callee->name()->as_utf8());
callee_struct.set_descriptor(callee->signature()->as_symbol()->as_utf8());
post(event, compile_id, caller, callee_struct, success, msg, bci);
}