1 /*
2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24 #include "precompiled.hpp"
25 #include "ci/ciMethod.hpp"
26 #include "compiler/compilerEvent.hpp"
27 #include "jfr/jfr.hpp"
28 #include "jfr/metadata/jfrSerializer.hpp"
29 #include "runtime/semaphore.inline.hpp"
30 #include "utilities/growableArray.hpp"
31
32 // Synchronizes access to phases_names.
33 class PhaseTypeGuard : public StackObj {
34 private:
35 static Semaphore _mutex_semaphore;
36 public:
37 PhaseTypeGuard() {
38 _mutex_semaphore.wait();
39 }
40 ~PhaseTypeGuard() {
41 _mutex_semaphore.signal();
42 }
43 };
44
45 Semaphore PhaseTypeGuard::_mutex_semaphore(1);
46
47 static void write_phases(JfrCheckpointWriter& writer, u4 base_idx, GrowableArray<const char*>* phases) {
48 assert(phases != NULL, "invariant");
49 assert(phases->is_nonempty(), "invariant");
50 const u4 nof_entries = phases->length();
51 writer.write_count(nof_entries);
52 for (u4 i = 0; i < nof_entries; i++) {
53 writer.write_key(base_idx + i);
54 writer.write(phases->at(i));
55 }
56 }
57
58 static GrowableArray<const char*>* phase_names = NULL;
59
60 class CompilerPhaseTypeConstant : public JfrSerializer {
61 public:
62 void serialize(JfrCheckpointWriter& writer) {
63 PhaseTypeGuard guard;
64 write_phases(writer, 0, phase_names);
65 }
66 };
67
68 // This function provides support for adding dynamic entries to JFR type CompilerPhaseType.
69 // The mapping for CompilerPhaseType is maintained as growable array phase_names.
70 // The serializer CompilerPhaseTypeConstant must be registered with JFR at vm init.
71 // Registration of new phase names creates mapping, serialize it for current chunk and registers its serializer with JFR if it is not already done.
72 int CompilerEvent::PhaseEvent::register_phases(GrowableArray<const char*>* new_phases) {
73 int idx = -1;
74 if (new_phases == NULL || new_phases->is_empty()) {
75 return idx;
76 }
77 bool register_jfr_serializer = false;
78 {
79 PhaseTypeGuard guard;
80 if (phase_names == NULL) {
81 phase_names = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<const char*>(100, true);
82 register_jfr_serializer = true;
83 }
84 idx = phase_names->length();
85 phase_names->appendAll(new_phases);
86 guarantee(phase_names->length() < 256, "exceeds maximum supported phases");
87 }
88 if (register_jfr_serializer) {
89 JfrSerializer::register_serializer(TYPE_COMPILERPHASETYPE, false, new CompilerPhaseTypeConstant());
90 } else if (Jfr::is_recording()) {
91 // serialize new_phases.
92 JfrCheckpointWriter writer;
93 writer.write_type(TYPE_COMPILERPHASETYPE);
94 write_phases(writer, idx, new_phases);
95 }
96 return idx;
97 }
98
99 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) {
100 event.set_compileId(compile_id);
101 event.set_compiler(compiler_type);
102 event.set_method(method);
103 event.set_compileLevel((short)compile_level);
104 event.set_succeded(success);
105 event.set_isOsr(is_osr);
106 event.set_codeSize(code_size);
107 event.set_inlinedBytes(inlined_bytecodes);
108 event.commit();
109 }
110
111 void CompilerEvent::CompilationFailureEvent::post(EventCompilationFailure& event, int compile_id, const char* reason) {
112 event.set_compileId(compile_id);
113 event.set_failureMessage(reason);
114 event.commit();
115 }
116
117 void CompilerEvent::PhaseEvent::post(EventCompilerPhase& event, const Ticks& start_time, int phase, int compile_id, int level) {
118 event.set_starttime(start_time);
119 event.set_phase((u1) phase);
120 event.set_compileId(compile_id);
121 event.set_phaseLevel((short)level);
122 event.commit();
123 }
124
125 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, const JfrStructCalleeMethod& callee, bool success, const char* msg, int bci) {
126 event.set_compileId(compile_id);
127 event.set_caller(caller);
128 event.set_callee(callee);
129 event.set_succeeded(success);
130 event.set_message(msg);
131 event.set_bci(bci);
132 event.commit();
133 }
134
135 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, Method* callee, bool success, const char* msg, int bci) {
136 JfrStructCalleeMethod callee_struct;
137 callee_struct.set_type(callee->klass_name()->as_utf8());
138 callee_struct.set_name(callee->name()->as_utf8());
139 callee_struct.set_descriptor(callee->signature()->as_utf8());
140 post(event, compile_id, caller, callee_struct, success, msg, bci);
141 }
142
143 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, ciMethod* callee, bool success, const char* msg, int bci) {
144 JfrStructCalleeMethod callee_struct;
145 callee_struct.set_type(callee->holder()->name()->as_utf8());
146 callee_struct.set_name(callee->name()->as_utf8());
147 callee_struct.set_descriptor(callee->signature()->as_symbol()->as_utf8());
148 post(event, compile_id, caller, callee_struct, success, msg, bci);
149 }