1 /*
2 * Copyright (c) 2011, 2016, 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 "classfile/javaClasses.inline.hpp"
27 #include "classfile/symbolTable.hpp"
28 #include "memory/oopFactory.hpp"
29 #include "memory/resourceArea.hpp"
30 #include "oops/objArrayOop.inline.hpp"
31 #include "prims/jni.h"
32 #include "prims/whitebox.hpp"
33 #include "prims/wbtestmethods/parserTests.hpp"
34 #include "runtime/interfaceSupport.hpp"
35 #include "services/diagnosticArgument.hpp"
36 #include "services/diagnosticFramework.hpp"
37
38 //There's no way of beforeahnd knowing an upper size
39 //Of the length of a string representation of
40 //the value of an argument.
41 #define VALUE_MAXLEN 256
42
43 // DiagnosticFramework test utility methods
44
45 /*
46 * The DiagnosticArgumentType class contains an enum that says which type
47 * this argument represents. (JLONG, BOOLEAN etc).
48 * This method Returns a char* representation of that enum value.
49 */
50 static const char* lookup_diagnosticArgumentEnum(const char* field_name, oop object) {
51 Thread* THREAD = Thread::current();
52 const char* enum_sig = "Lsun/hotspot/parser/DiagnosticCommand$DiagnosticArgumentType;";
53 TempNewSymbol enumSigSymbol = SymbolTable::lookup(enum_sig, (int) strlen(enum_sig), THREAD);
54 int offset = WhiteBox::offset_for_field(field_name, object, enumSigSymbol);
55 oop enumOop = object->obj_field(offset);
56
57 const char* ret = WhiteBox::lookup_jstring("name", enumOop);
58 return ret;
59 }
60
61 /*
62 * Takes an oop to a DiagnosticArgumentType-instance and
63 * reads the fields from it. Fills an native DCmdParser with
64 * this info.
65 */
66 static void fill_in_parser(DCmdParser* parser, oop argument)
67 {
68 const char* name = WhiteBox::lookup_jstring("name", argument);
69 const char* desc = WhiteBox::lookup_jstring("desc", argument);
70 const char* default_value = WhiteBox::lookup_jstring("defaultValue", argument);
71 bool mandatory = WhiteBox::lookup_bool("mandatory", argument);
72 bool isarg = WhiteBox::lookup_bool("argument", argument);
73 const char* type = lookup_diagnosticArgumentEnum("type", argument);
74
75 if (strcmp(type, "STRING") == 0) {
76 DCmdArgument<char*>* argument = new DCmdArgument<char*>(
77 name, desc,
78 "STRING", mandatory, default_value);
79 if (isarg) {
80 parser->add_dcmd_argument(argument);
81 } else {
82 parser->add_dcmd_option(argument);
83 }
84 } else if (strcmp(type, "NANOTIME") == 0) {
85 DCmdArgument<NanoTimeArgument>* argument = new DCmdArgument<NanoTimeArgument>(
86 name, desc,
87 "NANOTIME", mandatory, default_value);
88 if (isarg) {
89 parser->add_dcmd_argument(argument);
90 } else {
91 parser->add_dcmd_option(argument);
92 }
93 } else if (strcmp(type, "JLONG") == 0) {
94 DCmdArgument<jlong>* argument = new DCmdArgument<jlong>(
95 name, desc,
96 "JLONG", mandatory, default_value);
97 if (isarg) {
98 parser->add_dcmd_argument(argument);
99 } else {
100 parser->add_dcmd_option(argument);
101 }
102 } else if (strcmp(type, "BOOLEAN") == 0) {
103 DCmdArgument<bool>* argument = new DCmdArgument<bool>(
104 name, desc,
105 "BOOLEAN", mandatory, default_value);
106 if (isarg) {
107 parser->add_dcmd_argument(argument);
108 } else {
109 parser->add_dcmd_option(argument);
110 }
111 } else if (strcmp(type, "MEMORYSIZE") == 0) {
112 DCmdArgument<MemorySizeArgument>* argument = new DCmdArgument<MemorySizeArgument>(
113 name, desc,
114 "MEMORY SIZE", mandatory, default_value);
115 if (isarg) {
116 parser->add_dcmd_argument(argument);
117 } else {
118 parser->add_dcmd_option(argument);
119 }
120 } else if (strcmp(type, "STRINGARRAY") == 0) {
121 DCmdArgument<StringArrayArgument*>* argument = new DCmdArgument<StringArrayArgument*>(
122 name, desc,
123 "STRING SET", mandatory);
124 if (isarg) {
125 parser->add_dcmd_argument(argument);
126 } else {
127 parser->add_dcmd_option(argument);
128 }
129 }
130 }
131
132 /*
133 * Will Fill in a java object array with alternating names of parsed command line options and
134 * the value that has been parsed for it:
135 * { name, value, name, value ... }
136 * This can then be checked from java.
137 */
138 WB_ENTRY(jobjectArray, WB_ParseCommandLine(JNIEnv* env, jobject o, jstring j_cmdline, jchar j_delim, jobjectArray arguments))
139 ResourceMark rm;
140 DCmdParser parser;
141
142 const char* c_cmdline = java_lang_String::as_utf8_string(JNIHandles::resolve(j_cmdline));
143 const char c_delim = j_delim & 0xff;
144 objArrayOop argumentArray = objArrayOop(JNIHandles::resolve_non_null(arguments));
145 objArrayHandle argumentArray_ah(THREAD, argumentArray);
146
147 int length = argumentArray_ah->length();
148
149 for (int i = 0; i < length; i++) {
150 oop argument_oop = argumentArray_ah->obj_at(i);
151 fill_in_parser(&parser, argument_oop);
152 }
153
154 CmdLine cmdline(c_cmdline, strlen(c_cmdline), true);
155 parser.parse(&cmdline,c_delim,CHECK_NULL);
156
157 Klass* k = SystemDictionary::Object_klass();
158 objArrayOop returnvalue_array = oopFactory::new_objArray(k, parser.num_arguments() * 2, CHECK_NULL);
159 objArrayHandle returnvalue_array_ah(THREAD, returnvalue_array);
160
161 GrowableArray<const char *>*parsedArgNames = parser.argument_name_array();
162 GenDCmdArgument* arglist = parser.arguments_list();
163
164 for (int i = 0; i < parser.num_arguments(); i++) {
165 oop parsedName = java_lang_String::create_oop_from_str(parsedArgNames->at(i), CHECK_NULL);
166 returnvalue_array_ah->obj_at_put(i*2, parsedName);
167 GenDCmdArgument* arg = parser.lookup_dcmd_option(parsedArgNames->at(i), strlen(parsedArgNames->at(i)));
168 if (!arg) {
169 arg = arglist;
170 arglist = arglist->next();
171 }
172 char buf[VALUE_MAXLEN];
173 if (arg) {
174 arg->value_as_str(buf, sizeof(buf));
175 } else {
176 sprintf(buf, "<null>");
177 }
178 oop parsedValue = java_lang_String::create_oop_from_str(buf, CHECK_NULL);
179 returnvalue_array_ah->obj_at_put(i*2+1, parsedValue);
180 }
181
182 return (jobjectArray) JNIHandles::make_local(returnvalue_array_ah());
183
184 WB_END