Bug Summary

File:jdk/src/hotspot/share/services/diagnosticCommand.cpp
Warning:line 184, column 7
Value stored to 'factory' is never read

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name diagnosticCommand.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mthread-model posix -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -fno-rounding-math -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib/llvm-10/lib/clang/10.0.0 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/libjvm/objs/precompiled -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D _GNU_SOURCE -D _REENTRANT -D LIBC=gnu -D LINUX -D VM_LITTLE_ENDIAN -D _LP64=1 -D ASSERT -D CHECK_UNHANDLED_OOPS -D TARGET_ARCH_x86 -D INCLUDE_SUFFIX_OS=_linux -D INCLUDE_SUFFIX_CPU=_x86 -D INCLUDE_SUFFIX_COMPILER=_gcc -D TARGET_COMPILER_gcc -D AMD64 -D HOTSPOT_LIB_ARCH="amd64" -D COMPILER1 -D COMPILER2 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc/adfiles -I /home/daniel/Projects/java/jdk/src/hotspot/share -I /home/daniel/Projects/java/jdk/src/hotspot/os/linux -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix -I /home/daniel/Projects/java/jdk/src/hotspot/cpu/x86 -I /home/daniel/Projects/java/jdk/src/hotspot/os_cpu/linux_x86 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc -I /home/daniel/Projects/java/jdk/src/hotspot/share/precompiled -I /home/daniel/Projects/java/jdk/src/hotspot/share/include -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix/include -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/support/modules_include/java.base/linux -I /home/daniel/Projects/java/jdk/src/java.base/share/native/libjimage -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc/adfiles -I /home/daniel/Projects/java/jdk/src/hotspot/share -I /home/daniel/Projects/java/jdk/src/hotspot/os/linux -I /home/daniel/Projects/java/jdk/src/hotspot/os/posix -I /home/daniel/Projects/java/jdk/src/hotspot/cpu/x86 -I /home/daniel/Projects/java/jdk/src/hotspot/os_cpu/linux_x86 -I /home/daniel/Projects/java/jdk/build/linux-x86_64-server-fastdebug/hotspot/variant-server/gensrc -D _FORTIFY_SOURCE=2 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/x86_64-linux-gnu/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/x86_64-linux-gnu/c++/7.5.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-10/lib/clang/10.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -Wno-format-zero-length -Wno-unused-parameter -Wno-unused -Wno-parentheses -Wno-comment -Wno-unknown-pragmas -Wno-address -Wno-delete-non-virtual-dtor -Wno-char-subscripts -Wno-array-bounds -Wno-int-in-bool-context -Wno-ignored-qualifiers -Wno-missing-field-initializers -Wno-implicit-fallthrough -Wno-empty-body -Wno-strict-overflow -Wno-sequence-point -Wno-maybe-uninitialized -Wno-misleading-indentation -Wno-cast-function-type -Wno-shift-negative-value -std=c++14 -fdeprecated-macro -fdebug-compilation-dir /home/daniel/Projects/java/jdk/make/hotspot -ferror-limit 19 -fmessage-length 0 -fvisibility hidden -stack-protector 1 -fno-rtti -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -faddrsig -o /home/daniel/Projects/java/scan/2021-12-21-193737-8510-1 -x c++ /home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp
1/*
2 * Copyright (c) 2011, 2021, 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
25#include "precompiled.hpp"
26#include "jvm.h"
27#include "classfile/classLoaderHierarchyDCmd.hpp"
28#include "classfile/classLoaderStats.hpp"
29#include "classfile/javaClasses.hpp"
30#include "classfile/systemDictionary.hpp"
31#include "classfile/vmClasses.hpp"
32#include "code/codeCache.hpp"
33#include "compiler/compileBroker.hpp"
34#include "compiler/directivesParser.hpp"
35#include "gc/shared/gcVMOperations.hpp"
36#include "memory/metaspace/metaspaceDCmd.hpp"
37#include "memory/resourceArea.hpp"
38#include "memory/universe.hpp"
39#include "oops/instanceKlass.hpp"
40#include "oops/objArrayOop.inline.hpp"
41#include "oops/oop.inline.hpp"
42#include "oops/typeArrayOop.inline.hpp"
43#include "runtime/fieldDescriptor.inline.hpp"
44#include "runtime/flags/jvmFlag.hpp"
45#include "runtime/handles.inline.hpp"
46#include "runtime/interfaceSupport.inline.hpp"
47#include "runtime/javaCalls.hpp"
48#include "runtime/jniHandles.hpp"
49#include "runtime/os.hpp"
50#include "runtime/vmOperations.hpp"
51#include "runtime/vm_version.hpp"
52#include "services/diagnosticArgument.hpp"
53#include "services/diagnosticCommand.hpp"
54#include "services/diagnosticFramework.hpp"
55#include "services/heapDumper.hpp"
56#include "services/management.hpp"
57#include "services/writeableFlags.hpp"
58#include "utilities/debug.hpp"
59#include "utilities/events.hpp"
60#include "utilities/formatBuffer.hpp"
61#include "utilities/macros.hpp"
62#ifdef LINUX1
63#include "trimCHeapDCmd.hpp"
64#endif
65
66static void loadAgentModule(TRAPSJavaThread* __the_thread__) {
67 ResourceMark rm(THREAD__the_thread__);
68 HandleMark hm(THREAD__the_thread__);
69
70 JavaValue result(T_OBJECT);
71 Handle h_module_name = java_lang_String::create_from_str("jdk.management.agent", CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
72 JavaCalls::call_static(&result,
73 vmClasses::module_Modules_klass(),
74 vmSymbols::loadModule_name(),
75 vmSymbols::loadModule_signature(),
76 h_module_name,
77 THREAD__the_thread__);
78}
79
80void DCmdRegistrant::register_dcmds(){
81 // Registration of the diagnostic commands
82 // First argument specifies which interfaces will export the command
83 // Second argument specifies if the command is enabled
84 // Third argument specifies if the command is hidden
85 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI
86 | DCmd_Source_MBean;
87 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HelpDCmd>(full_export, true, false));
88 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VersionDCmd>(full_export, true, false));
89 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CommandLineDCmd>(full_export, true, false));
90 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintSystemPropertiesDCmd>(full_export, true, false));
91 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PrintVMFlagsDCmd>(full_export, true, false));
92 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SetVMFlagDCmd>(full_export, true, false));
93 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMDynamicLibrariesDCmd>(full_export, true, false));
94 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMUptimeDCmd>(full_export, true, false));
95 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<VMInfoDCmd>(full_export, true, false));
96 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemGCDCmd>(full_export, true, false));
97 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<RunFinalizationDCmd>(full_export, true, false));
98 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapInfoDCmd>(full_export, true, false));
99 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<FinalizerInfoDCmd>(full_export, true, false));
100#if INCLUDE_SERVICES1
101 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<HeapDumpDCmd>(DCmd_Source_Internal | DCmd_Source_AttachAPI, true, false));
102 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHistogramDCmd>(full_export, true, false));
103 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SystemDictionaryDCmd>(full_export, true, false));
104 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassHierarchyDCmd>(full_export, true, false));
105 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<SymboltableDCmd>(full_export, true, false));
106 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<StringtableDCmd>(full_export, true, false));
107 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<metaspace::MetaspaceDCmd>(full_export, true, false));
108 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<EventLogDCmd>(full_export, true, false));
109#if INCLUDE_JVMTI1 // Both JVMTI and SERVICES have to be enabled to have this dcmd
110 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIAgentLoadDCmd>(full_export, true, false));
111#endif // INCLUDE_JVMTI
112#endif // INCLUDE_SERVICES
113#if INCLUDE_JVMTI1
114 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JVMTIDataDumpDCmd>(full_export, true, false));
115#endif // INCLUDE_JVMTI
116 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ThreadDumpDCmd>(full_export, true, false));
117 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderStatsDCmd>(full_export, true, false));
118 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<ClassLoaderHierarchyDCmd>(full_export, true, false));
119 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompileQueueDCmd>(full_export, true, false));
120 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeListDCmd>(full_export, true, false));
121 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeCacheDCmd>(full_export, true, false));
122#ifdef LINUX1
123 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<PerfMapDCmd>(full_export, true, false));
124 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TrimCLibcHeapDCmd>(full_export, true, false));
125#endif // LINUX
126 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<TouchedMethodsDCmd>(full_export, true, false));
127 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CodeHeapAnalyticsDCmd>(full_export, true, false));
128
129 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesPrintDCmd>(full_export, true, false));
130 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesAddDCmd>(full_export, true, false));
131 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesRemoveDCmd>(full_export, true, false));
132 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<CompilerDirectivesClearDCmd>(full_export, true, false));
133
134 // Enhanced JMX Agent Support
135 // These commands won't be exported via the DiagnosticCommandMBean until an
136 // appropriate permission is created for them
137 uint32_t jmx_agent_export_flags = DCmd_Source_Internal | DCmd_Source_AttachAPI;
138 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartRemoteDCmd>(jmx_agent_export_flags, true,false));
139 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStartLocalDCmd>(jmx_agent_export_flags, true,false));
140 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStopRemoteDCmd>(jmx_agent_export_flags, true,false));
141 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<JMXStatusDCmd>(jmx_agent_export_flags, true,false));
142
143 // Debug on cmd (only makes sense with JVMTI since the agentlib needs it).
144#if INCLUDE_JVMTI1
145 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<DebugOnCmdStartDCmd>(full_export, true, true));
146#endif // INCLUDE_JVMTI
147
148#if INCLUDE_CDS1
149 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<DumpSharedArchiveDCmd>(full_export, true, false));
150#endif // INCLUDE_CDS
151}
152
153#ifndef HAVE_EXTRA_DCMD
154void DCmdRegistrant::register_dcmds_ext(){
155 // Do nothing here
156}
157#endif
158
159
160HelpDCmd::HelpDCmd(outputStream* output, bool heap) : DCmdWithParser(output, heap),
161 _all("-all", "Show help for all commands", "BOOLEAN", false, "false"),
162 _cmd("command name", "The name of the command for which we want help",
163 "STRING", false) {
164 _dcmdparser.add_dcmd_option(&_all);
165 _dcmdparser.add_dcmd_argument(&_cmd);
166};
167
168
169static int compare_strings(const char** s1, const char** s2) {
170 return ::strcmp(*s1, *s2);
171}
172
173void HelpDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
174 if (_all.value()) {
175 GrowableArray<const char*>* cmd_list = DCmdFactory::DCmd_list(source);
176 cmd_list->sort(compare_strings);
177 for (int i = 0; i < cmd_list->length(); i++) {
178 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
179 strlen(cmd_list->at(i)));
180 output()->print_cr("%s%s", factory->name(),
181 factory->is_enabled() ? "" : " [disabled]");
182 output()->print_cr("\t%s", factory->description());
183 output()->cr();
184 factory = factory->next();
Value stored to 'factory' is never read
185 }
186 } else if (_cmd.has_value()) {
187 DCmd* cmd = NULL__null;
188 DCmdFactory* factory = DCmdFactory::factory(source, _cmd.value(),
189 strlen(_cmd.value()));
190 if (factory != NULL__null) {
191 output()->print_cr("%s%s", factory->name(),
192 factory->is_enabled() ? "" : " [disabled]");
193 output()->print_cr("%s", factory->description());
194 output()->print_cr("\nImpact: %s", factory->impact());
195 JavaPermission p = factory->permission();
196 if(p._class != NULL__null) {
197 if(p._action != NULL__null) {
198 output()->print_cr("\nPermission: %s(%s, %s)",
199 p._class, p._name == NULL__null ? "null" : p._name, p._action);
200 } else {
201 output()->print_cr("\nPermission: %s(%s)",
202 p._class, p._name == NULL__null ? "null" : p._name);
203 }
204 }
205 output()->cr();
206 cmd = factory->create_resource_instance(output());
207 if (cmd != NULL__null) {
208 DCmdMark mark(cmd);
209 cmd->print_help(factory->name());
210 }
211 } else {
212 output()->print_cr("Help unavailable : '%s' : No such command", _cmd.value());
213 }
214 } else {
215 output()->print_cr("The following commands are available:");
216 GrowableArray<const char *>* cmd_list = DCmdFactory::DCmd_list(source);
217 cmd_list->sort(compare_strings);
218 for (int i = 0; i < cmd_list->length(); i++) {
219 DCmdFactory* factory = DCmdFactory::factory(source, cmd_list->at(i),
220 strlen(cmd_list->at(i)));
221 output()->print_cr("%s%s", factory->name(),
222 factory->is_enabled() ? "" : " [disabled]");
223 factory = factory->_next;
224 }
225 output()->print_cr("\nFor more information about a specific command use 'help <command>'.");
226 }
227}
228
229void VersionDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
230 output()->print_cr("%s version %s", VM_Version::vm_name(),
231 VM_Version::vm_release());
232 JDK_Version jdk_version = JDK_Version::current();
233 if (jdk_version.patch_version() > 0) {
234 output()->print_cr("JDK %d.%d.%d.%d", jdk_version.major_version(),
235 jdk_version.minor_version(), jdk_version.security_version(),
236 jdk_version.patch_version());
237 } else {
238 output()->print_cr("JDK %d.%d.%d", jdk_version.major_version(),
239 jdk_version.minor_version(), jdk_version.security_version());
240 }
241}
242
243PrintVMFlagsDCmd::PrintVMFlagsDCmd(outputStream* output, bool heap) :
244 DCmdWithParser(output, heap),
245 _all("-all", "Print all flags supported by the VM", "BOOLEAN", false, "false") {
246 _dcmdparser.add_dcmd_option(&_all);
247}
248
249void PrintVMFlagsDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
250 if (_all.value()) {
251 JVMFlag::printFlags(output(), true);
252 } else {
253 JVMFlag::printSetFlags(output());
254 }
255}
256
257SetVMFlagDCmd::SetVMFlagDCmd(outputStream* output, bool heap) :
258 DCmdWithParser(output, heap),
259 _flag("flag name", "The name of the flag we want to set",
260 "STRING", true),
261 _value("string value", "The value we want to set", "STRING", false) {
262 _dcmdparser.add_dcmd_argument(&_flag);
263 _dcmdparser.add_dcmd_argument(&_value);
264}
265
266void SetVMFlagDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
267 const char* val = NULL__null;
268 if (_value.value() != NULL__null) {
269 val = _value.value();
270 }
271
272 FormatBuffer<80> err_msg("%s", "");
273 int ret = WriteableFlags::set_flag(_flag.value(), val, JVMFlagOrigin::MANAGEMENT, err_msg);
274
275 if (ret != JVMFlag::SUCCESS) {
276 output()->print_cr("%s", err_msg.buffer());
277 }
278}
279
280void JVMTIDataDumpDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
281 if (JvmtiExport::should_post_data_dump()) {
282 JvmtiExport::post_data_dump();
283 }
284}
285
286#if INCLUDE_SERVICES1
287#if INCLUDE_JVMTI1
288JVMTIAgentLoadDCmd::JVMTIAgentLoadDCmd(outputStream* output, bool heap) :
289 DCmdWithParser(output, heap),
290 _libpath("library path", "Absolute path of the JVMTI agent to load.",
291 "STRING", true),
292 _option("agent option", "Option string to pass the agent.", "STRING", false) {
293 _dcmdparser.add_dcmd_argument(&_libpath);
294 _dcmdparser.add_dcmd_argument(&_option);
295}
296
297void JVMTIAgentLoadDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
298
299 if (_libpath.value() == NULL__null) {
300 output()->print_cr("JVMTI.agent_load dcmd needs library path.");
301 return;
302 }
303
304 char *suffix = strrchr(_libpath.value(), '.');
305 bool is_java_agent = (suffix != NULL__null) && (strncmp(".jar", suffix, 4) == 0);
306
307 if (is_java_agent) {
308 if (_option.value() == NULL__null) {
309 JvmtiExport::load_agent_library("instrument", "false",
310 _libpath.value(), output());
311 } else {
312 size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
313 if (opt_len > 4096) {
314 output()->print_cr("JVMTI agent attach failed: Options is too long.");
315 return;
316 }
317
318 char *opt = (char *)os::malloc(opt_len, mtInternal);
319 if (opt == NULL__null) {
320 output()->print_cr("JVMTI agent attach failed: "
321 "Could not allocate " SIZE_FORMAT"%" "l" "u" " bytes for argument.",
322 opt_len);
323 return;
324 }
325
326 jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
327 JvmtiExport::load_agent_library("instrument", "false", opt, output());
328
329 os::free(opt);
330 }
331 } else {
332 JvmtiExport::load_agent_library(_libpath.value(), "true",
333 _option.value(), output());
334 }
335}
336
337#endif // INCLUDE_JVMTI
338#endif // INCLUDE_SERVICES
339
340void PrintSystemPropertiesDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
341 // load VMSupport
342 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport();
343 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
344 InstanceKlass* ik = InstanceKlass::cast(k);
345 if (ik->should_be_initialized()) {
346 ik->initialize(THREAD__the_thread__);
347 }
348 if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) {
349 java_lang_Throwable::print(PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->pending_exception()), output());
350 output()->cr();
351 CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception(
));
352 return;
353 }
354
355 // invoke the serializePropertiesToByteArray method
356 JavaValue result(T_OBJECT);
357 JavaCallArguments args;
358
359 Symbol* signature = vmSymbols::serializePropertiesToByteArray_signature();
360 JavaCalls::call_static(&result,
361 ik,
362 vmSymbols::serializePropertiesToByteArray_name(),
363 signature,
364 &args,
365 THREAD__the_thread__);
366 if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) {
367 java_lang_Throwable::print(PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->pending_exception()), output());
368 output()->cr();
369 CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception(
));
370 return;
371 }
372
373 // The result should be a [B
374 oop res = result.get_oop();
375 assert(res->is_typeArray(), "just checking")do { if (!(res->is_typeArray())) { (*g_assert_poison) = 'X'
;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp"
, 375, "assert(" "res->is_typeArray()" ") failed", "just checking"
); ::breakpoint(); } } while (0);
376 assert(TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE, "just checking")do { if (!(TypeArrayKlass::cast(res->klass())->element_type
() == T_BYTE)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp"
, 376, "assert(" "TypeArrayKlass::cast(res->klass())->element_type() == T_BYTE"
") failed", "just checking"); ::breakpoint(); } } while (0);
377
378 // copy the bytes to the output stream
379 typeArrayOop ba = typeArrayOop(res);
380 jbyte* addr = typeArrayOop(res)->byte_at_addr(0);
381 output()->print_raw((const char*)addr, ba->length());
382}
383
384VMUptimeDCmd::VMUptimeDCmd(outputStream* output, bool heap) :
385 DCmdWithParser(output, heap),
386 _date("-date", "Add a prefix with current date", "BOOLEAN", false, "false") {
387 _dcmdparser.add_dcmd_option(&_date);
388}
389
390void VMUptimeDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
391 if (_date.value()) {
392 output()->date_stamp(true, "", ": ");
393 }
394 output()->time_stamp().update_to(tty->time_stamp().ticks());
395 output()->stamp();
396 output()->print_cr(" s");
397}
398
399void VMInfoDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
400 VMError::print_vm_info(_output);
401}
402
403void SystemGCDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
404 Universe::heap()->collect(GCCause::_dcmd_gc_run);
405}
406
407void RunFinalizationDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
408 Klass* k = vmClasses::System_klass();
409 JavaValue result(T_VOID);
410 JavaCalls::call_static(&result, k,
411 vmSymbols::run_finalization_name(),
412 vmSymbols::void_method_signature(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
413}
414
415void HeapInfoDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
416 MutexLocker hl(THREAD__the_thread__, Heap_lock);
417 Universe::heap()->print_on(output());
418}
419
420void FinalizerInfoDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
421 ResourceMark rm(THREAD__the_thread__);
422
423 if (!InstanceKlass::is_finalization_enabled()) {
424 output()->print_cr("Finalization is disabled");
425 return;
426 }
427
428 Klass* k = SystemDictionary::resolve_or_fail(
429 vmSymbols::finalizer_histogram_klass(), true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
430
431 JavaValue result(T_ARRAY);
432
433 // We are calling lang.ref.FinalizerHistogram.getFinalizerHistogram() method
434 // and expect it to return array of FinalizerHistogramEntry as Object[]
435
436 JavaCalls::call_static(&result, k,
437 vmSymbols::get_finalizer_histogram_name(),
438 vmSymbols::void_finalizer_histogram_entry_array_signature(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
439
440 objArrayOop result_oop = (objArrayOop) result.get_oop();
441 if (result_oop->length() == 0) {
442 output()->print_cr("No instances waiting for finalization found");
443 return;
444 }
445
446 oop foop = result_oop->obj_at(0);
447 InstanceKlass* ik = InstanceKlass::cast(foop->klass());
448
449 fieldDescriptor count_fd, name_fd;
450
451 Klass* count_res = ik->find_field(
452 vmSymbols::finalizer_histogram_entry_count_field(), vmSymbols::int_signature(), &count_fd);
453
454 Klass* name_res = ik->find_field(
455 vmSymbols::finalizer_histogram_entry_name_field(), vmSymbols::string_signature(), &name_fd);
456
457 assert(count_res != NULL && name_res != NULL, "Unexpected layout of FinalizerHistogramEntry")do { if (!(count_res != __null && name_res != __null)
) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp"
, 457, "assert(" "count_res != __null && name_res != __null"
") failed", "Unexpected layout of FinalizerHistogramEntry");
::breakpoint(); } } while (0);
458
459 output()->print_cr("Unreachable instances waiting for finalization");
460 output()->print_cr("#instances class name");
461 output()->print_cr("-----------------------");
462
463 for (int i = 0; i < result_oop->length(); ++i) {
464 oop element_oop = result_oop->obj_at(i);
465 oop str_oop = element_oop->obj_field(name_fd.offset());
466 char *name = java_lang_String::as_utf8_string(str_oop);
467 int count = element_oop->int_field(count_fd.offset());
468 output()->print_cr("%10d %s", count, name);
469 }
470}
471
472#if INCLUDE_SERVICES1 // Heap dumping/inspection supported
473HeapDumpDCmd::HeapDumpDCmd(outputStream* output, bool heap) :
474 DCmdWithParser(output, heap),
475 _filename("filename","Name of the dump file", "STRING",true),
476 _all("-all", "Dump all objects, including unreachable objects",
477 "BOOLEAN", false, "false"),
478 _gzip("-gz", "If specified, the heap dump is written in gzipped format "
479 "using the given compression level. 1 (recommended) is the fastest, "
480 "9 the strongest compression.", "INT", false, "1"),
481 _overwrite("-overwrite", "If specified, the dump file will be overwritten if it exists",
482 "BOOLEAN", false, "false") {
483 _dcmdparser.add_dcmd_option(&_all);
484 _dcmdparser.add_dcmd_argument(&_filename);
485 _dcmdparser.add_dcmd_option(&_gzip);
486 _dcmdparser.add_dcmd_option(&_overwrite);
487}
488
489void HeapDumpDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
490 jlong level = -1; // -1 means no compression.
491
492 if (_gzip.is_set()) {
493 level = _gzip.value();
494
495 if (level < 1 || level > 9) {
496 output()->print_cr("Compression level out of range (1-9): " JLONG_FORMAT"%" "l" "d", level);
497 return;
498 }
499 }
500
501 // Request a full GC before heap dump if _all is false
502 // This helps reduces the amount of unreachable objects in the dump
503 // and makes it easier to browse.
504 HeapDumper dumper(!_all.value() /* request GC if _all is false*/);
505 dumper.dump(_filename.value(), output(), (int) level, _overwrite.value());
506}
507
508ClassHistogramDCmd::ClassHistogramDCmd(outputStream* output, bool heap) :
509 DCmdWithParser(output, heap),
510 _all("-all", "Inspect all objects, including unreachable objects",
511 "BOOLEAN", false, "false"),
512 _parallel_thread_num("-parallel",
513 "Number of parallel threads to use for heap inspection. "
514 "0 (the default) means let the VM determine the number of threads to use. "
515 "1 means use one thread (disable parallelism). "
516 "For any other value the VM will try to use the specified number of "
517 "threads, but might use fewer.",
518 "INT", false, "0") {
519 _dcmdparser.add_dcmd_option(&_all);
520 _dcmdparser.add_dcmd_option(&_parallel_thread_num);
521}
522
523void ClassHistogramDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
524 jlong num = _parallel_thread_num.value();
525 if (num < 0) {
526 output()->print_cr("Parallel thread number out of range (>=0): " JLONG_FORMAT"%" "l" "d", num);
527 return;
528 }
529 uint parallel_thread_num = num == 0
530 ? MAX2<uint>(1, (uint)os::initial_active_processor_count() * 3 / 8)
531 : num;
532 VM_GC_HeapInspection heapop(output(),
533 !_all.value(), /* request full gc if false */
534 parallel_thread_num);
535 VMThread::execute(&heapop);
536}
537
538#endif // INCLUDE_SERVICES
539
540ThreadDumpDCmd::ThreadDumpDCmd(outputStream* output, bool heap) :
541 DCmdWithParser(output, heap),
542 _locks("-l", "print java.util.concurrent locks", "BOOLEAN", false, "false"),
543 _extended("-e", "print extended thread information", "BOOLEAN", false, "false") {
544 _dcmdparser.add_dcmd_option(&_locks);
545 _dcmdparser.add_dcmd_option(&_extended);
546}
547
548void ThreadDumpDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
549 // thread stacks and JNI global handles
550 VM_PrintThreads op1(output(), _locks.value(), _extended.value(), true /* print JNI handle info */);
551 VMThread::execute(&op1);
552
553 // Deadlock detection
554 VM_FindDeadlocks op2(output());
555 VMThread::execute(&op2);
556}
557
558// Enhanced JMX Agent support
559
560JMXStartRemoteDCmd::JMXStartRemoteDCmd(outputStream *output, bool heap_allocated) :
561
562 DCmdWithParser(output, heap_allocated),
563
564 _config_file
565 ("config.file",
566 "set com.sun.management.config.file", "STRING", false),
567
568 _jmxremote_host
569 ("jmxremote.host",
570 "set com.sun.management.jmxremote.host", "STRING", false),
571
572 _jmxremote_port
573 ("jmxremote.port",
574 "set com.sun.management.jmxremote.port", "STRING", false),
575
576 _jmxremote_rmi_port
577 ("jmxremote.rmi.port",
578 "set com.sun.management.jmxremote.rmi.port", "STRING", false),
579
580 _jmxremote_ssl
581 ("jmxremote.ssl",
582 "set com.sun.management.jmxremote.ssl", "STRING", false),
583
584 _jmxremote_registry_ssl
585 ("jmxremote.registry.ssl",
586 "set com.sun.management.jmxremote.registry.ssl", "STRING", false),
587
588 _jmxremote_authenticate
589 ("jmxremote.authenticate",
590 "set com.sun.management.jmxremote.authenticate", "STRING", false),
591
592 _jmxremote_password_file
593 ("jmxremote.password.file",
594 "set com.sun.management.jmxremote.password.file", "STRING", false),
595
596 _jmxremote_access_file
597 ("jmxremote.access.file",
598 "set com.sun.management.jmxremote.access.file", "STRING", false),
599
600 _jmxremote_login_config
601 ("jmxremote.login.config",
602 "set com.sun.management.jmxremote.login.config", "STRING", false),
603
604 _jmxremote_ssl_enabled_cipher_suites
605 ("jmxremote.ssl.enabled.cipher.suites",
606 "set com.sun.management.jmxremote.ssl.enabled.cipher.suite", "STRING", false),
607
608 _jmxremote_ssl_enabled_protocols
609 ("jmxremote.ssl.enabled.protocols",
610 "set com.sun.management.jmxremote.ssl.enabled.protocols", "STRING", false),
611
612 _jmxremote_ssl_need_client_auth
613 ("jmxremote.ssl.need.client.auth",
614 "set com.sun.management.jmxremote.need.client.auth", "STRING", false),
615
616 _jmxremote_ssl_config_file
617 ("jmxremote.ssl.config.file",
618 "set com.sun.management.jmxremote.ssl.config.file", "STRING", false),
619
620// JDP Protocol support
621 _jmxremote_autodiscovery
622 ("jmxremote.autodiscovery",
623 "set com.sun.management.jmxremote.autodiscovery", "STRING", false),
624
625 _jdp_port
626 ("jdp.port",
627 "set com.sun.management.jdp.port", "INT", false),
628
629 _jdp_address
630 ("jdp.address",
631 "set com.sun.management.jdp.address", "STRING", false),
632
633 _jdp_source_addr
634 ("jdp.source_addr",
635 "set com.sun.management.jdp.source_addr", "STRING", false),
636
637 _jdp_ttl
638 ("jdp.ttl",
639 "set com.sun.management.jdp.ttl", "INT", false),
640
641 _jdp_pause
642 ("jdp.pause",
643 "set com.sun.management.jdp.pause", "INT", false),
644
645 _jdp_name
646 ("jdp.name",
647 "set com.sun.management.jdp.name", "STRING", false)
648
649 {
650 _dcmdparser.add_dcmd_option(&_config_file);
651 _dcmdparser.add_dcmd_option(&_jmxremote_host);
652 _dcmdparser.add_dcmd_option(&_jmxremote_port);
653 _dcmdparser.add_dcmd_option(&_jmxremote_rmi_port);
654 _dcmdparser.add_dcmd_option(&_jmxremote_ssl);
655 _dcmdparser.add_dcmd_option(&_jmxremote_registry_ssl);
656 _dcmdparser.add_dcmd_option(&_jmxremote_authenticate);
657 _dcmdparser.add_dcmd_option(&_jmxremote_password_file);
658 _dcmdparser.add_dcmd_option(&_jmxremote_access_file);
659 _dcmdparser.add_dcmd_option(&_jmxremote_login_config);
660 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_cipher_suites);
661 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_enabled_protocols);
662 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_need_client_auth);
663 _dcmdparser.add_dcmd_option(&_jmxremote_ssl_config_file);
664 _dcmdparser.add_dcmd_option(&_jmxremote_autodiscovery);
665 _dcmdparser.add_dcmd_option(&_jdp_port);
666 _dcmdparser.add_dcmd_option(&_jdp_address);
667 _dcmdparser.add_dcmd_option(&_jdp_source_addr);
668 _dcmdparser.add_dcmd_option(&_jdp_ttl);
669 _dcmdparser.add_dcmd_option(&_jdp_pause);
670 _dcmdparser.add_dcmd_option(&_jdp_name);
671}
672
673void JMXStartRemoteDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
674 ResourceMark rm(THREAD__the_thread__);
675 HandleMark hm(THREAD__the_thread__);
676
677 // Load and initialize the jdk.internal.agent.Agent class
678 // invoke startRemoteManagementAgent(string) method to start
679 // the remote management server.
680 // throw java.lang.NoSuchMethodError if the method doesn't exist
681
682 loadAgentModule(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
683 Handle loader = Handle(THREAD__the_thread__, SystemDictionary::java_system_loader());
684 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
685
686 JavaValue result(T_VOID);
687
688 // Pass all command line arguments to java as key=value,...
689 // All checks are done on java side
690
691 int len = 0;
692 stringStream options;
693 char comma[2] = {0,0};
694
695 // Leave default values on Agent.class side and pass only
696 // agruments explicitly set by user. All arguments passed
697 // to jcmd override properties with the same name set by
698 // command line with -D or by managmenent.properties
699 // file.
700#define PUT_OPTION(a) \
701 do { \
702 if ( (a).is_set() ){ \
703 if ( *((a).type()) == 'I' ) { \
704 options.print("%scom.sun.management.%s=" JLONG_FORMAT"%" "l" "d", comma, (a).name(), (jlong)((a).value())); \
705 } else { \
706 options.print("%scom.sun.management.%s=%s", comma, (a).name(), (char*)((a).value())); \
707 } \
708 comma[0] = ','; \
709 }\
710 } while(0);
711
712
713 PUT_OPTION(_config_file);
714 PUT_OPTION(_jmxremote_host);
715 PUT_OPTION(_jmxremote_port);
716 PUT_OPTION(_jmxremote_rmi_port);
717 PUT_OPTION(_jmxremote_ssl);
718 PUT_OPTION(_jmxremote_registry_ssl);
719 PUT_OPTION(_jmxremote_authenticate);
720 PUT_OPTION(_jmxremote_password_file);
721 PUT_OPTION(_jmxremote_access_file);
722 PUT_OPTION(_jmxremote_login_config);
723 PUT_OPTION(_jmxremote_ssl_enabled_cipher_suites);
724 PUT_OPTION(_jmxremote_ssl_enabled_protocols);
725 PUT_OPTION(_jmxremote_ssl_need_client_auth);
726 PUT_OPTION(_jmxremote_ssl_config_file);
727 PUT_OPTION(_jmxremote_autodiscovery);
728 PUT_OPTION(_jdp_port);
729 PUT_OPTION(_jdp_address);
730 PUT_OPTION(_jdp_source_addr);
731 PUT_OPTION(_jdp_ttl);
732 PUT_OPTION(_jdp_pause);
733 PUT_OPTION(_jdp_name);
734
735#undef PUT_OPTION
736
737 Handle str = java_lang_String::create_from_str(options.as_string(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
738 JavaCalls::call_static(&result, k, vmSymbols::startRemoteAgent_name(), vmSymbols::string_void_signature(), str, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
739}
740
741JMXStartLocalDCmd::JMXStartLocalDCmd(outputStream *output, bool heap_allocated) :
742 DCmd(output, heap_allocated) {
743 // do nothing
744}
745
746void JMXStartLocalDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
747 ResourceMark rm(THREAD__the_thread__);
748 HandleMark hm(THREAD__the_thread__);
749
750 // Load and initialize the jdk.internal.agent.Agent class
751 // invoke startLocalManagementAgent(void) method to start
752 // the local management server
753 // throw java.lang.NoSuchMethodError if method doesn't exist
754
755 loadAgentModule(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
756 Handle loader = Handle(THREAD__the_thread__, SystemDictionary::java_system_loader());
757 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
758
759 JavaValue result(T_VOID);
760 JavaCalls::call_static(&result, k, vmSymbols::startLocalAgent_name(), vmSymbols::void_method_signature(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
761}
762
763void JMXStopRemoteDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
764 ResourceMark rm(THREAD__the_thread__);
765 HandleMark hm(THREAD__the_thread__);
766
767 // Load and initialize the jdk.internal.agent.Agent class
768 // invoke stopRemoteManagementAgent method to stop the
769 // management server
770 // throw java.lang.NoSuchMethodError if method doesn't exist
771
772 loadAgentModule(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
773 Handle loader = Handle(THREAD__the_thread__, SystemDictionary::java_system_loader());
774 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
775
776 JavaValue result(T_VOID);
777 JavaCalls::call_static(&result, k, vmSymbols::stopRemoteAgent_name(), vmSymbols::void_method_signature(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
778}
779
780JMXStatusDCmd::JMXStatusDCmd(outputStream *output, bool heap_allocated) :
781 DCmd(output, heap_allocated) {
782 // do nothing
783}
784
785void JMXStatusDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
786 ResourceMark rm(THREAD__the_thread__);
787 HandleMark hm(THREAD__the_thread__);
788
789 // Load and initialize the jdk.internal.agent.Agent class
790 // invoke getManagementAgentStatus() method to generate the status info
791 // throw java.lang.NoSuchMethodError if method doesn't exist
792
793 loadAgentModule(CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
794 Handle loader = Handle(THREAD__the_thread__, SystemDictionary::java_system_loader());
795 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::jdk_internal_agent_Agent(), loader, Handle(), true, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
796
797 JavaValue result(T_OBJECT);
798 JavaCalls::call_static(&result, k, vmSymbols::getAgentStatus_name(), vmSymbols::void_string_signature(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
799
800 jvalue* jv = (jvalue*) result.get_value_addr();
801 oop str = cast_to_oop(jv->l);
802 if (str != NULL__null) {
803 char* out = java_lang_String::as_utf8_string(str);
804 if (out) {
805 output()->print_cr("%s", out);
806 return;
807 }
808 }
809 output()->print_cr("Error obtaining management agent status");
810}
811
812VMDynamicLibrariesDCmd::VMDynamicLibrariesDCmd(outputStream *output, bool heap_allocated) :
813 DCmd(output, heap_allocated) {
814 // do nothing
815}
816
817void VMDynamicLibrariesDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
818 os::print_dll_info(output());
819 output()->cr();
820}
821
822void CompileQueueDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
823 VM_PrintCompileQueue printCompileQueueOp(output());
824 VMThread::execute(&printCompileQueueOp);
825}
826
827void CodeListDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
828 CodeCache::print_codelist(output());
829}
830
831void CodeCacheDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
832 CodeCache::print_layout(output());
833}
834
835#ifdef LINUX1
836void PerfMapDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
837 CodeCache::write_perf_map();
838}
839#endif // LINUX
840
841//---< BEGIN >--- CodeHeap State Analytics.
842CodeHeapAnalyticsDCmd::CodeHeapAnalyticsDCmd(outputStream* output, bool heap) :
843 DCmdWithParser(output, heap),
844 _function("function", "Function to be performed (aggregate, UsedSpace, FreeSpace, MethodCount, MethodSpace, MethodAge, MethodNames, discard", "STRING", false, "all"),
845 _granularity("granularity", "Detail level - smaller value -> more detail", "INT", false, "4096") {
846 _dcmdparser.add_dcmd_argument(&_function);
847 _dcmdparser.add_dcmd_argument(&_granularity);
848}
849
850void CodeHeapAnalyticsDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
851 jlong granularity = _granularity.value();
852 if (granularity < 1) {
853 Exceptions::fthrow(THREAD_AND_LOCATION__the_thread__, "/home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp"
, 853, vmSymbols::java_lang_IllegalArgumentException(),
854 "Invalid granularity value " JLONG_FORMAT"%" "l" "d" ". Should be positive.\n", granularity);
855 return;
856 }
857
858 CompileBroker::print_heapinfo(output(), _function.value(), granularity);
859}
860//---< END >--- CodeHeap State Analytics.
861
862EventLogDCmd::EventLogDCmd(outputStream* output, bool heap) :
863 DCmdWithParser(output, heap),
864 _log("log", "Name of log to be printed. If omitted, all logs are printed.", "STRING", false, NULL__null),
865 _max("max", "Maximum number of events to be printed (newest first). If omitted, all events are printed.", "STRING", false, NULL__null)
866{
867 _dcmdparser.add_dcmd_option(&_log);
868 _dcmdparser.add_dcmd_option(&_max);
869}
870
871void EventLogDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
872 const char* max_value = _max.value();
873 long max = -1;
874 if (max_value != NULL__null) {
875 char* endptr = NULL__null;
876 max = ::strtol(max_value, &endptr, 10);
877 if (max == 0 && max_value == endptr) {
878 output()->print_cr("Invalid max option: \"%s\".", max_value);
879 return;
880 }
881 }
882 const char* log_name = _log.value();
883 if (log_name != NULL__null) {
884 Events::print_one(output(), log_name, max);
885 } else {
886 Events::print_all(output(), max);
887 }
888}
889
890void CompilerDirectivesPrintDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
891 DirectivesStack::print(output());
892}
893
894CompilerDirectivesAddDCmd::CompilerDirectivesAddDCmd(outputStream* output, bool heap) :
895 DCmdWithParser(output, heap),
896 _filename("filename","Name of the directives file", "STRING",true) {
897 _dcmdparser.add_dcmd_argument(&_filename);
898}
899
900void CompilerDirectivesAddDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
901 DirectivesParser::parse_from_file(_filename.value(), output());
902}
903
904void CompilerDirectivesRemoveDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
905 DirectivesStack::pop(1);
906}
907
908void CompilerDirectivesClearDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
909 DirectivesStack::clear();
910}
911#if INCLUDE_SERVICES1
912ClassHierarchyDCmd::ClassHierarchyDCmd(outputStream* output, bool heap) :
913 DCmdWithParser(output, heap),
914 _print_interfaces("-i", "Inherited interfaces should be printed.", "BOOLEAN", false, "false"),
915 _print_subclasses("-s", "If a classname is specified, print its subclasses "
916 "in addition to its superclasses. Without this option only the "
917 "superclasses will be printed.", "BOOLEAN", false, "false"),
918 _classname("classname", "Name of class whose hierarchy should be printed. "
919 "If not specified, all class hierarchies are printed.",
920 "STRING", false) {
921 _dcmdparser.add_dcmd_option(&_print_interfaces);
922 _dcmdparser.add_dcmd_option(&_print_subclasses);
923 _dcmdparser.add_dcmd_argument(&_classname);
924}
925
926void ClassHierarchyDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
927 VM_PrintClassHierarchy printClassHierarchyOp(output(), _print_interfaces.value(),
928 _print_subclasses.value(), _classname.value());
929 VMThread::execute(&printClassHierarchyOp);
930}
931#endif
932
933class VM_DumpTouchedMethods : public VM_Operation {
934private:
935 outputStream* _out;
936public:
937 VM_DumpTouchedMethods(outputStream* out) {
938 _out = out;
939 }
940
941 virtual VMOp_Type type() const { return VMOp_DumpTouchedMethods; }
942
943 virtual void doit() {
944 Method::print_touched_methods(_out);
945 }
946};
947
948void TouchedMethodsDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
949 if (!LogTouchedMethods) {
950 output()->print_cr("VM.print_touched_methods command requires -XX:+LogTouchedMethods");
951 return;
952 }
953 VM_DumpTouchedMethods dumper(output());
954 VMThread::execute(&dumper);
955}
956
957#if INCLUDE_CDS1
958DumpSharedArchiveDCmd::DumpSharedArchiveDCmd(outputStream* output, bool heap) :
959 DCmdWithParser(output, heap),
960 _suboption("subcmd", "static_dump | dynamic_dump", "STRING", true),
961 _filename("filename", "Name of shared archive to be dumped", "STRING", false)
962{
963 _dcmdparser.add_dcmd_argument(&_suboption);
964 _dcmdparser.add_dcmd_argument(&_filename);
965}
966
967void DumpSharedArchiveDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
968 jboolean is_static;
969 const char* scmd = _suboption.value();
970 const char* file = _filename.value();
971
972 if (strcmp(scmd, "static_dump") == 0) {
973 is_static = JNI_TRUE1;
974 output()->print("Static dump: ");
975 } else if (strcmp(scmd, "dynamic_dump") == 0) {
976 is_static = JNI_FALSE0;
977 output()->print("Dynamic dump: ");
978 if (!UseSharedSpaces) {
979 output()->print_cr("Dynamic dump is unsupported when base CDS archive is not loaded");
980 return;
981 }
982 if (!RecordDynamicDumpInfo) {
983 output()->print_cr("Dump dynamic should run with -XX:+RecordDynamicDumpInfo");
984 return;
985 }
986 } else {
987 output()->print_cr("Invalid command for VM.cds, valid input is static_dump or dynamic_dump");
988 return;
989 }
990
991 // call CDS.dumpSharedArchive
992 Handle fileh;
993 if (file != NULL__null) {
994 fileh = java_lang_String::create_from_str(_filename.value(), CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
995 }
996 Symbol* cds_name = vmSymbols::jdk_internal_misc_CDS();
997 Klass* cds_klass = SystemDictionary::resolve_or_fail(cds_name, true /*throw error*/, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
998 JavaValue result(T_OBJECT);
999 JavaCallArguments args;
1000 args.push_int(is_static);
1001 args.push_oop(fileh);
1002 JavaCalls::call_static(&result,
1003 cds_klass,
1004 vmSymbols::dumpSharedArchive(),
1005 vmSymbols::dumpSharedArchive_signature(),
1006 &args, CHECK__the_thread__); if ((((ThreadShadow*)__the_thread__)->has_pending_exception
())) return ; (void)(0);
1007 if (!HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) {
1008 assert(result.get_type() == T_OBJECT, "Sanity check")do { if (!(result.get_type() == T_OBJECT)) { (*g_assert_poison
) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/services/diagnosticCommand.cpp"
, 1008, "assert(" "result.get_type() == T_OBJECT" ") failed",
"Sanity check"); ::breakpoint(); } } while (0);
1009 // result contains the archive name
1010 char* archive_name = java_lang_String::as_utf8_string(result.get_oop());
1011 output()->print_cr("%s", archive_name);
1012 }
1013}
1014#endif // INCLUDE_CDS
1015
1016#if INCLUDE_JVMTI1
1017extern "C" typedef char const* (JNICALL *debugInit_startDebuggingViaCommandPtr)(JNIEnv* env, jthread thread, char const** transport_name,
1018 char const** address, jboolean* first_start);
1019static debugInit_startDebuggingViaCommandPtr dvc_start_ptr = NULL__null;
1020
1021void DebugOnCmdStartDCmd::execute(DCmdSource source, TRAPSJavaThread* __the_thread__) {
1022 char const* transport = NULL__null;
1023 char const* addr = NULL__null;
1024 jboolean is_first_start = JNI_FALSE0;
1025 JavaThread* thread = THREAD__the_thread__;
1026 jthread jt = JNIHandles::make_local(thread->threadObj());
1027 ThreadToNativeFromVM ttn(thread);
1028 const char *error = "Could not find jdwp agent.";
1029
1030 if (!dvc_start_ptr) {
1031 for (AgentLibrary* agent = Arguments::agents(); agent != NULL__null; agent = agent->next()) {
1032 if ((strcmp("jdwp", agent->name()) == 0) && (dvc_start_ptr == NULL__null)) {
1033 char const* func = "debugInit_startDebuggingViaCommand";
1034 dvc_start_ptr = (debugInit_startDebuggingViaCommandPtr) os::find_agent_function(agent, false, &func, 1);
1035 }
1036 }
1037 }
1038
1039 if (dvc_start_ptr) {
1040 error = dvc_start_ptr(thread->jni_environment(), jt, &transport, &addr, &is_first_start);
1041 }
1042
1043 if (error != NULL__null) {
1044 output()->print_cr("Debugging has not been started: %s", error);
1045 } else {
1046 output()->print_cr(is_first_start ? "Debugging has been started." : "Debugging is already active.");
1047 output()->print_cr("Transport : %s", transport ? transport : "#unknown");
1048 output()->print_cr("Address : %s", addr ? addr : "#unknown");
1049 }
1050}
1051#endif // INCLUDE_JVMTI