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/jfrEvents.hpp"
29 #include "jfr/metadata/jfrSerializer.hpp"
30 #include "runtime/semaphore.inline.hpp"
31 #include "utilities/growableArray.hpp"
32
33 // Synchronizes access to phases_names.
34 class PhaseTypeGuard : public StackObj {
35 private:
36 static Semaphore _mutex_semaphore;
37 public:
38 PhaseTypeGuard() {
39 _mutex_semaphore.wait();
40 }
41 ~PhaseTypeGuard() {
42 _mutex_semaphore.signal();
43 }
44 };
45
46 Semaphore PhaseTypeGuard::_mutex_semaphore(1);
47
48 static void write_phases(JfrCheckpointWriter& writer, u4 base_idx, GrowableArray<const char*>* phases) {
49 assert(phases != NULL, "invariant");
50 assert(phases->is_nonempty(), "invariant");
51 const u4 nof_entries = phases->length();
52 writer.write_count(nof_entries);
53 for (u4 i = 0; i < nof_entries; i++) {
54 writer.write_key(base_idx + i);
55 writer.write(phases->at(i));
56 }
57 }
58
59 static GrowableArray<const char*>* phase_names = NULL;
60
61 class CompilerPhaseTypeConstant : public JfrSerializer {
62 public:
63 void serialize(JfrCheckpointWriter& writer) {
64 PhaseTypeGuard guard;
65 write_phases(writer, 0, phase_names);
66 }
67 };
68
69 // This function provides support for adding dynamic entries to JFR type CompilerPhaseType.
70 // The mapping for CompilerPhaseType is maintained as growable array phase_names.
71 // The serializer CompilerPhaseTypeConstant must be registered with JFR at vm init.
72 // Registration of new phase names creates mapping, serialize it for current chunk and registers its serializer with JFR if it is not already done.
73 int CompilerEvent::PhaseEvent::register_phases(GrowableArray<const char*>* new_phases) {
74 int idx = -1;
75 if (new_phases == NULL || new_phases->is_empty()) {
76 return idx;
77 }
78 bool register_jfr_serializer = false;
79 {
80 PhaseTypeGuard guard;
81 if (phase_names == NULL) {
82 phase_names = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<const char*>(100, true);
83 register_jfr_serializer = true;
84 }
85 idx = phase_names->length();
86 phase_names->appendAll(new_phases);
87 guarantee(phase_names->length() < 256, "exceeds maximum supported phases");
88 }
89 if (register_jfr_serializer) {
90 JfrSerializer::register_serializer(TYPE_COMPILERPHASETYPE, false, new CompilerPhaseTypeConstant());
91 } else if (Jfr::is_recording()) {
92 // serialize new_phases.
93 JfrCheckpointWriter writer;
94 writer.write_type(TYPE_COMPILERPHASETYPE);
95 write_phases(writer, idx, new_phases);
96 }
97 return idx;
98 }
99
100 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) {
101 event.set_compileId(compile_id);
102 event.set_compiler(compiler_type);
103 event.set_method(method);
104 event.set_compileLevel((short)compile_level);
105 event.set_succeded(success);
106 event.set_isOsr(is_osr);
107 event.set_codeSize(code_size);
108 event.set_inlinedBytes(inlined_bytecodes);
109 event.commit();
110 }
111
112 void CompilerEvent::CompilationFailureEvent::post(EventCompilationFailure& event, int compile_id, const char* reason) {
113 event.set_compileId(compile_id);
114 event.set_failureMessage(reason);
115 event.commit();
116 }
117
118 void CompilerEvent::PhaseEvent::post(EventCompilerPhase& event, const Ticks& start_time, int phase, int compile_id, int level) {
119 event.set_starttime(start_time);
120 event.set_phase((u1) phase);
121 event.set_compileId(compile_id);
122 event.set_phaseLevel((short)level);
123 event.commit();
124 }
125
126 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, const JfrStructCalleeMethod& callee, bool success, const char* msg, int bci) {
127 event.set_compileId(compile_id);
128 event.set_caller(caller);
129 event.set_callee(callee);
130 event.set_succeeded(success);
131 event.set_message(msg);
132 event.set_bci(bci);
133 event.commit();
134 }
135
136 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, Method* callee, bool success, const char* msg, int bci) {
137 JfrStructCalleeMethod callee_struct;
138 callee_struct.set_type(callee->klass_name()->as_utf8());
139 callee_struct.set_name(callee->name()->as_utf8());
140 callee_struct.set_descriptor(callee->signature()->as_utf8());
141 post(event, compile_id, caller, callee_struct, success, msg, bci);
142 }
143
144 void CompilerEvent::InlineEvent::post(EventCompilerInlining& event, int compile_id, Method* caller, ciMethod* callee, bool success, const char* msg, int bci) {
145 JfrStructCalleeMethod callee_struct;
146 callee_struct.set_type(callee->holder()->name()->as_utf8());
147 callee_struct.set_name(callee->name()->as_utf8());
148 callee_struct.set_descriptor(callee->signature()->as_symbol()->as_utf8());
149 post(event, compile_id, caller, callee_struct, success, msg, bci);
150 }