1 /*
2 * Copyright (c) 2011, 2013, 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 "oops/objArrayOop.inline.hpp"
30 #include "prims/jni.h"
31 #include "prims/whitebox.hpp"
32 #include "prims/wbtestmethods/parserTests.hpp"
33 #include "runtime/interfaceSupport.hpp"
34 #include "services/diagnosticArgument.hpp"
35 #include "services/diagnosticFramework.hpp"
36
37 //There's no way of beforeahnd knowing an upper size
38 //Of the length of a string representation of
39 //the value of an argument.
40 #define VALUE_MAXLEN 256
41
42 // DiagnosticFramework test utility methods
43
44 /*
45 * The DiagnosticArgumentType class contains an enum that says which type
46 * this argument represents. (JLONG, BOOLEAN etc).
47 * This method Returns a char* representation of that enum value.
48 */
49 static const char* lookup_diagnosticArgumentEnum(const char* field_name, oop object) {
50 Thread* THREAD = Thread::current();
51 const char* enum_sig = "Lsun/hotspot/parser/DiagnosticCommand$DiagnosticArgumentType;";
52 TempNewSymbol enumSigSymbol = SymbolTable::lookup(enum_sig, (int) strlen(enum_sig), THREAD);
53 int offset = WhiteBox::offset_for_field(field_name, object, enumSigSymbol);
54 oop enumOop = object->obj_field(offset);
55
56 const char* ret = WhiteBox::lookup_jstring("name", enumOop);
57 return ret;
58 }
59
60 /*
61 * Takes an oop to a DiagnosticArgumentType-instance and
62 * reads the fields from it. Fills an native DCmdParser with
63 * this info.
64 */
65 static void fill_in_parser(DCmdParser* parser, oop argument)
66 {
67 const char* name = WhiteBox::lookup_jstring("name", argument);
68 const char* desc = WhiteBox::lookup_jstring("desc", argument);
69 const char* default_value = WhiteBox::lookup_jstring("defaultValue", argument);
70 bool mandatory = WhiteBox::lookup_bool("mandatory", argument);
71 bool isarg = WhiteBox::lookup_bool("argument", argument);
72 const char* type = lookup_diagnosticArgumentEnum("type", argument);
73
74 if (strcmp(type, "STRING") == 0) {
75 DCmdArgument<char*>* argument = new DCmdArgument<char*>(
76 name, desc,
77 "STRING", mandatory, default_value);
78 if (isarg) {
79 parser->add_dcmd_argument(argument);
80 } else {
81 parser->add_dcmd_option(argument);
82 }
83 } else if (strcmp(type, "NANOTIME") == 0) {
84 DCmdArgument<NanoTimeArgument>* argument = new DCmdArgument<NanoTimeArgument>(
85 name, desc,
86 "NANOTIME", mandatory, default_value);
87 if (isarg) {
88 parser->add_dcmd_argument(argument);
89 } else {
90 parser->add_dcmd_option(argument);
91 }
92 } else if (strcmp(type, "JLONG") == 0) {
93 DCmdArgument<jlong>* argument = new DCmdArgument<jlong>(
94 name, desc,
95 "JLONG", mandatory, default_value);
96 if (isarg) {
97 parser->add_dcmd_argument(argument);
98 } else {
99 parser->add_dcmd_option(argument);
100 }
101 } else if (strcmp(type, "BOOLEAN") == 0) {
102 DCmdArgument<bool>* argument = new DCmdArgument<bool>(
103 name, desc,
104 "BOOLEAN", mandatory, default_value);
105 if (isarg) {
106 parser->add_dcmd_argument(argument);
107 } else {
108 parser->add_dcmd_option(argument);
109 }
110 } else if (strcmp(type, "MEMORYSIZE") == 0) {
111 DCmdArgument<MemorySizeArgument>* argument = new DCmdArgument<MemorySizeArgument>(
112 name, desc,
113 "MEMORY SIZE", mandatory, default_value);
114 if (isarg) {
115 parser->add_dcmd_argument(argument);
116 } else {
117 parser->add_dcmd_option(argument);
118 }
119 } else if (strcmp(type, "STRINGARRAY") == 0) {
120 DCmdArgument<StringArrayArgument*>* argument = new DCmdArgument<StringArrayArgument*>(
121 name, desc,
122 "STRING SET", mandatory);
123 if (isarg) {
124 parser->add_dcmd_argument(argument);
125 } else {
126 parser->add_dcmd_option(argument);
127 }
128 }
129 }
130
131 /*
132 * Will Fill in a java object array with alternating names of parsed command line options and
133 * the value that has been parsed for it:
134 * { name, value, name, value ... }
135 * This can then be checked from java.
136 */
137 WB_ENTRY(jobjectArray, WB_ParseCommandLine(JNIEnv* env, jobject o, jstring j_cmdline, jchar j_delim, jobjectArray arguments))
138 ResourceMark rm;
139 DCmdParser parser;
140
141 const char* c_cmdline = java_lang_String::as_utf8_string(JNIHandles::resolve(j_cmdline));
142 const char c_delim = j_delim & 0xff;
143 objArrayOop argumentArray = objArrayOop(JNIHandles::resolve_non_null(arguments));
144 objArrayHandle argumentArray_ah(THREAD, argumentArray);
145
146 int length = argumentArray_ah->length();
147
148 for (int i = 0; i < length; i++) {
149 oop argument_oop = argumentArray_ah->obj_at(i);
150 fill_in_parser(&parser, argument_oop);
151 }
152
153 CmdLine cmdline(c_cmdline, strlen(c_cmdline), true);
154 parser.parse(&cmdline,c_delim,CHECK_NULL);
155
156 Klass* k = SystemDictionary::Object_klass();
157 objArrayOop returnvalue_array = oopFactory::new_objArray(k, parser.num_arguments() * 2, CHECK_NULL);
158 objArrayHandle returnvalue_array_ah(THREAD, returnvalue_array);
159
160 GrowableArray<const char *>*parsedArgNames = parser.argument_name_array();
161 GenDCmdArgument* arglist = parser.arguments_list();
162
163 for (int i = 0; i < parser.num_arguments(); i++) {
164 oop parsedName = java_lang_String::create_oop_from_str(parsedArgNames->at(i), CHECK_NULL);
165 returnvalue_array_ah->obj_at_put(i*2, parsedName);
166 GenDCmdArgument* arg = parser.lookup_dcmd_option(parsedArgNames->at(i), strlen(parsedArgNames->at(i)));
167 if (!arg) {
168 arg = arglist;
169 arglist = arglist->next();
170 }
171 char buf[VALUE_MAXLEN];
172 if (arg) {
173 arg->value_as_str(buf, sizeof(buf));
174 } else {
175 sprintf(buf, "<null>");
176 }
177 oop parsedValue = java_lang_String::create_oop_from_str(buf, CHECK_NULL);
178 returnvalue_array_ah->obj_at_put(i*2+1, parsedValue);
179 }
180
181 return (jobjectArray) JNIHandles::make_local(returnvalue_array_ah());
182
183 WB_END