Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 4150:c78bace5086a
start work on integrating old hooks into mx, work on sanity checks
introduce a DB class to access the bench DB in an easier way (create benchmarks and benchmark values automatically in the DB)
author | Gilles Duboscq <gilles.m.duboscq@gmail.com> |
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date | Tue, 20 Dec 2011 15:34:43 +0100 |
parents | cd00eaeebef6 |
children | 6c995c08526c |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "memory/allocation.inline.hpp" | |
27 #include "oops/oop.inline.hpp" | |
28 #include "runtime/arguments.hpp" | |
29 #include "runtime/globals.hpp" | |
30 #include "runtime/globals_extension.hpp" | |
31 #include "utilities/ostream.hpp" | |
32 #include "utilities/top.hpp" | |
33 #ifndef SERIALGC | |
34 #include "gc_implementation/g1/g1_globals.hpp" | |
35 #endif | |
36 #ifdef COMPILER1 | |
37 #include "c1/c1_globals.hpp" | |
38 #endif | |
39 #ifdef COMPILER2 | |
40 #include "opto/c2_globals.hpp" | |
41 #endif | |
42 #ifdef SHARK | |
43 #include "shark/shark_globals.hpp" | |
44 #endif | |
0 | 45 |
46 | |
47 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
48 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
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49 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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50 MATERIALIZE_NOTPRODUCT_FLAG, \ |
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51 MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ |
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52 MATERIALIZE_LP64_PRODUCT_FLAG) |
0 | 53 |
54 RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
55 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
56 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) | |
57 | |
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58 MATERIALIZE_FLAGS_EXT |
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59 |
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60 |
0 | 61 bool Flag::is_unlocker() const { |
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62 return strcmp(name, "UnlockDiagnosticVMOptions") == 0 || |
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63 strcmp(name, "UnlockExperimentalVMOptions") == 0 || |
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64 is_unlocker_ext(); |
0 | 65 } |
66 | |
67 bool Flag::is_unlocked() const { | |
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68 if (strcmp(kind, "{diagnostic}") == 0) { |
2460 | 69 if (strcmp(name, "EnableInvokeDynamic") == 0 && UnlockExperimentalVMOptions && !UnlockDiagnosticVMOptions) { |
70 // transitional logic to allow tests to run until they are changed | |
71 static int warned; | |
72 if (++warned == 1) warning("Use -XX:+UnlockDiagnosticVMOptions before EnableInvokeDynamic flag"); | |
73 return true; | |
74 } | |
0 | 75 return UnlockDiagnosticVMOptions; |
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76 } else if (strcmp(kind, "{experimental}") == 0 || |
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77 strcmp(kind, "{C2 experimental}") == 0) { |
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78 return UnlockExperimentalVMOptions; |
0 | 79 } else { |
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80 return is_unlocked_ext(); |
0 | 81 } |
82 } | |
83 | |
84 bool Flag::is_writeable() const { | |
85 return (strcmp(kind, "{manageable}") == 0 || strcmp(kind, "{product rw}") == 0); | |
86 } | |
87 | |
88 // All flags except "manageable" are assumed internal flags. | |
89 // Long term, we need to define a mechanism to specify which flags | |
90 // are external/stable and change this function accordingly. | |
91 bool Flag::is_external() const { | |
92 return (strcmp(kind, "{manageable}") == 0); | |
93 } | |
94 | |
95 // Length of format string (e.g. "%.1234s") for printing ccstr below | |
96 #define FORMAT_BUFFER_LEN 16 | |
97 | |
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98 void Flag::print_on(outputStream* st, bool withComments) { |
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99 st->print("%9s %-40s %c= ", type, name, (origin != DEFAULT ? ':' : ' ')); |
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100 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); |
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101 if (is_intx()) st->print("%-16ld", get_intx()); |
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102 if (is_uintx()) st->print("%-16lu", get_uintx()); |
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103 if (is_uint64_t()) st->print("%-16lu", get_uint64_t()); |
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104 if (is_double()) st->print("%-16f", get_double()); |
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105 |
0 | 106 if (is_ccstr()) { |
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107 const char* cp = get_ccstr(); |
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108 if (cp != NULL) { |
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109 const char* eol; |
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110 while ((eol = strchr(cp, '\n')) != NULL) { |
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111 char format_buffer[FORMAT_BUFFER_LEN]; |
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112 size_t llen = pointer_delta(eol, cp, sizeof(char)); |
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113 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, |
103 | 114 "%%." SIZE_FORMAT "s", llen); |
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115 st->print(format_buffer, cp); |
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116 st->cr(); |
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117 cp = eol+1; |
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118 st->print("%5s %-35s += ", "", name); |
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119 } |
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120 st->print("%-16s", cp); |
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121 } |
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122 else st->print("%-16s", ""); |
0 | 123 } |
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124 st->print("%-20s", kind); |
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125 if (withComments) { |
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126 #ifndef PRODUCT |
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127 st->print("%s", doc ); |
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128 #endif |
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129 } |
0 | 130 st->cr(); |
131 } | |
132 | |
133 void Flag::print_as_flag(outputStream* st) { | |
134 if (is_bool()) { | |
135 st->print("-XX:%s%s", get_bool() ? "+" : "-", name); | |
136 } else if (is_intx()) { | |
137 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); | |
138 } else if (is_uintx()) { | |
139 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); | |
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140 } else if (is_uint64_t()) { |
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141 st->print("-XX:%s=" UINT64_FORMAT, name, get_uint64_t()); |
0 | 142 } else if (is_ccstr()) { |
143 st->print("-XX:%s=", name); | |
103 | 144 const char* cp = get_ccstr(); |
145 if (cp != NULL) { | |
146 // Need to turn embedded '\n's back into separate arguments | |
147 // Not so efficient to print one character at a time, | |
148 // but the choice is to do the transformation to a buffer | |
149 // and print that. And this need not be efficient. | |
150 for (; *cp != '\0'; cp += 1) { | |
151 switch (*cp) { | |
152 default: | |
153 st->print("%c", *cp); | |
154 break; | |
155 case '\n': | |
156 st->print(" -XX:%s=", name); | |
157 break; | |
158 } | |
0 | 159 } |
160 } | |
161 } else { | |
162 ShouldNotReachHere(); | |
163 } | |
164 } | |
165 | |
166 // 4991491 do not "optimize out" the was_set false values: omitting them | |
167 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
168 | |
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169 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product}", DEFAULT }, |
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170 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{pd product}", DEFAULT }, |
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171 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{diagnostic}", DEFAULT }, |
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172 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{experimental}", DEFAULT }, |
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173 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{manageable}", DEFAULT }, |
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174 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product rw}", DEFAULT }, |
0 | 175 |
176 #ifdef PRODUCT | |
177 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
178 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
179 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
180 #else | |
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181 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "", DEFAULT }, |
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182 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{pd}", DEFAULT }, |
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183 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{notproduct}", DEFAULT }, |
0 | 184 #endif |
185 | |
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186 #ifdef _LP64 |
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187 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{lp64_product}", DEFAULT }, |
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188 #else |
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189 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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190 #endif // _LP64 |
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191 |
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192 #define C1_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 product}", DEFAULT }, |
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193 #define C1_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 pd product}", DEFAULT }, |
0 | 194 #ifdef PRODUCT |
195 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
196 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
197 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
198 #else | |
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199 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1}", DEFAULT }, |
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200 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C1 pd}", DEFAULT }, |
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201 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1 notproduct}", DEFAULT }, |
0 | 202 #endif |
203 | |
204 | |
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205 #define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 product}", DEFAULT }, |
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206 #define C2_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 pd product}", DEFAULT }, |
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207 #define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 diagnostic}", DEFAULT }, |
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208 #define C2_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 experimental}", DEFAULT }, |
0 | 209 #ifdef PRODUCT |
210 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
211 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
212 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
213 #else | |
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214 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2}", DEFAULT }, |
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215 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C2 pd}", DEFAULT }, |
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216 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2 notproduct}", DEFAULT }, |
0 | 217 #endif |
218 | |
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219 #define SHARK_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark product}", DEFAULT }, |
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220 #define SHARK_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark pd product}", DEFAULT }, |
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221 #define SHARK_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark diagnostic}", DEFAULT }, |
1692 | 222 #ifdef PRODUCT |
223 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
224 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
225 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
226 #else | |
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227 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark}", DEFAULT }, |
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228 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{Shark pd}", DEFAULT }, |
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229 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark notproduct}", DEFAULT }, |
1692 | 230 #endif |
0 | 231 |
232 static Flag flagTable[] = { | |
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233 RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT) |
0 | 234 RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT) |
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235 #ifndef SERIALGC |
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236 G1_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT) |
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237 #endif // SERIALGC |
0 | 238 #ifdef COMPILER1 |
239 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) | |
240 #endif | |
241 #ifdef COMPILER2 | |
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242 C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, C2_PD_DEVELOP_FLAG_STRUCT, C2_PRODUCT_FLAG_STRUCT, C2_PD_PRODUCT_FLAG_STRUCT, C2_DIAGNOSTIC_FLAG_STRUCT, C2_EXPERIMENTAL_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT) |
0 | 243 #endif |
1692 | 244 #ifdef SHARK |
245 SHARK_FLAGS(SHARK_DEVELOP_FLAG_STRUCT, SHARK_PD_DEVELOP_FLAG_STRUCT, SHARK_PRODUCT_FLAG_STRUCT, SHARK_PD_PRODUCT_FLAG_STRUCT, SHARK_DIAGNOSTIC_FLAG_STRUCT, SHARK_NOTPRODUCT_FLAG_STRUCT) | |
246 #endif | |
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247 FLAGTABLE_EXT |
0 | 248 {0, NULL, NULL} |
249 }; | |
250 | |
251 Flag* Flag::flags = flagTable; | |
252 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
253 | |
254 inline bool str_equal(const char* s, char* q, size_t len) { | |
255 // s is null terminated, q is not! | |
256 if (strlen(s) != (unsigned int) len) return false; | |
257 return strncmp(s, q, len) == 0; | |
258 } | |
259 | |
260 Flag* Flag::find_flag(char* name, size_t length) { | |
261 for (Flag* current = &flagTable[0]; current->name; current++) { | |
262 if (str_equal(current->name, name, length)) { | |
263 if (!(current->is_unlocked() || current->is_unlocker())) { | |
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264 // disable use of diagnostic or experimental flags until they |
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265 // are explicitly unlocked |
0 | 266 return NULL; |
267 } | |
268 return current; | |
269 } | |
270 } | |
271 return NULL; | |
272 } | |
273 | |
274 // Returns the address of the index'th element | |
275 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
276 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
277 return &Flag::flags[flag]; | |
278 } | |
279 | |
280 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
281 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
282 Flag* f = &Flag::flags[flag]; | |
283 return (f->origin == DEFAULT); | |
284 } | |
285 | |
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286 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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287 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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288 Flag* f = &Flag::flags[flag]; |
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289 return (f->origin == ERGONOMIC); |
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290 } |
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291 |
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292 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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293 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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294 Flag* f = &Flag::flags[flag]; |
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295 return (f->origin == COMMAND_LINE); |
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296 } |
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297 |
0 | 298 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
299 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
300 if (result == NULL) return false; | |
301 *value = (result->origin == COMMAND_LINE); | |
302 return true; | |
303 } | |
304 | |
305 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
306 Flag* result = Flag::find_flag(name, len); | |
307 if (result == NULL) return false; | |
308 if (!result->is_bool()) return false; | |
309 *value = result->get_bool(); | |
310 return true; | |
311 } | |
312 | |
313 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) { | |
314 Flag* result = Flag::find_flag(name, len); | |
315 if (result == NULL) return false; | |
316 if (!result->is_bool()) return false; | |
317 bool old_value = result->get_bool(); | |
318 result->set_bool(*value); | |
319 *value = old_value; | |
320 result->origin = origin; | |
321 return true; | |
322 } | |
323 | |
324 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) { | |
325 Flag* faddr = address_of_flag(flag); | |
326 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
327 faddr->set_bool(value); | |
328 faddr->origin = origin; | |
329 } | |
330 | |
331 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
332 Flag* result = Flag::find_flag(name, len); | |
333 if (result == NULL) return false; | |
334 if (!result->is_intx()) return false; | |
335 *value = result->get_intx(); | |
336 return true; | |
337 } | |
338 | |
339 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin) { | |
340 Flag* result = Flag::find_flag(name, len); | |
341 if (result == NULL) return false; | |
342 if (!result->is_intx()) return false; | |
343 intx old_value = result->get_intx(); | |
344 result->set_intx(*value); | |
345 *value = old_value; | |
346 result->origin = origin; | |
347 return true; | |
348 } | |
349 | |
350 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, FlagValueOrigin origin) { | |
351 Flag* faddr = address_of_flag(flag); | |
352 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
353 faddr->set_intx(value); | |
354 faddr->origin = origin; | |
355 } | |
356 | |
357 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
358 Flag* result = Flag::find_flag(name, len); | |
359 if (result == NULL) return false; | |
360 if (!result->is_uintx()) return false; | |
361 *value = result->get_uintx(); | |
362 return true; | |
363 } | |
364 | |
365 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin) { | |
366 Flag* result = Flag::find_flag(name, len); | |
367 if (result == NULL) return false; | |
368 if (!result->is_uintx()) return false; | |
369 uintx old_value = result->get_uintx(); | |
370 result->set_uintx(*value); | |
371 *value = old_value; | |
372 result->origin = origin; | |
373 return true; | |
374 } | |
375 | |
376 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, FlagValueOrigin origin) { | |
377 Flag* faddr = address_of_flag(flag); | |
378 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
379 faddr->set_uintx(value); | |
380 faddr->origin = origin; | |
381 } | |
382 | |
1064 | 383 bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { |
384 Flag* result = Flag::find_flag(name, len); | |
385 if (result == NULL) return false; | |
386 if (!result->is_uint64_t()) return false; | |
387 *value = result->get_uint64_t(); | |
388 return true; | |
389 } | |
390 | |
391 bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin) { | |
392 Flag* result = Flag::find_flag(name, len); | |
393 if (result == NULL) return false; | |
394 if (!result->is_uint64_t()) return false; | |
395 uint64_t old_value = result->get_uint64_t(); | |
396 result->set_uint64_t(*value); | |
397 *value = old_value; | |
398 result->origin = origin; | |
399 return true; | |
400 } | |
401 | |
402 void CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, FlagValueOrigin origin) { | |
403 Flag* faddr = address_of_flag(flag); | |
404 guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); | |
405 faddr->set_uint64_t(value); | |
406 faddr->origin = origin; | |
407 } | |
408 | |
0 | 409 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { |
410 Flag* result = Flag::find_flag(name, len); | |
411 if (result == NULL) return false; | |
412 if (!result->is_double()) return false; | |
413 *value = result->get_double(); | |
414 return true; | |
415 } | |
416 | |
417 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin) { | |
418 Flag* result = Flag::find_flag(name, len); | |
419 if (result == NULL) return false; | |
420 if (!result->is_double()) return false; | |
421 double old_value = result->get_double(); | |
422 result->set_double(*value); | |
423 *value = old_value; | |
424 result->origin = origin; | |
425 return true; | |
426 } | |
427 | |
428 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, FlagValueOrigin origin) { | |
429 Flag* faddr = address_of_flag(flag); | |
430 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
431 faddr->set_double(value); | |
432 faddr->origin = origin; | |
433 } | |
434 | |
435 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
436 Flag* result = Flag::find_flag(name, len); | |
437 if (result == NULL) return false; | |
438 if (!result->is_ccstr()) return false; | |
439 *value = result->get_ccstr(); | |
440 return true; | |
441 } | |
442 | |
443 // Contract: Flag will make private copy of the incoming value. | |
444 // Outgoing value is always malloc-ed, and caller MUST call free. | |
445 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin) { | |
446 Flag* result = Flag::find_flag(name, len); | |
447 if (result == NULL) return false; | |
448 if (!result->is_ccstr()) return false; | |
449 ccstr old_value = result->get_ccstr(); | |
370
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450 char* new_value = NULL; |
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451 if (*value != NULL) { |
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452 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1); |
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453 strcpy(new_value, *value); |
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454 } |
0 | 455 result->set_ccstr(new_value); |
456 if (result->origin == DEFAULT && old_value != NULL) { | |
457 // Prior value is NOT heap allocated, but was a literal constant. | |
458 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1); | |
459 strcpy(old_value_to_free, old_value); | |
460 old_value = old_value_to_free; | |
461 } | |
462 *value = old_value; | |
463 result->origin = origin; | |
464 return true; | |
465 } | |
466 | |
467 // Contract: Flag will make private copy of the incoming value. | |
468 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, FlagValueOrigin origin) { | |
469 Flag* faddr = address_of_flag(flag); | |
470 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
471 ccstr old_value = faddr->get_ccstr(); | |
472 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1); | |
473 strcpy(new_value, value); | |
474 faddr->set_ccstr(new_value); | |
475 if (faddr->origin != DEFAULT && old_value != NULL) { | |
476 // Prior value is heap allocated so free it. | |
477 FREE_C_HEAP_ARRAY(char, old_value); | |
478 } | |
479 faddr->origin = origin; | |
480 } | |
481 | |
482 extern "C" { | |
483 static int compare_flags(const void* void_a, const void* void_b) { | |
484 return strcmp((*((Flag**) void_a))->name, (*((Flag**) void_b))->name); | |
485 } | |
486 } | |
487 | |
488 void CommandLineFlags::printSetFlags() { | |
489 // Print which flags were set on the command line | |
490 // note: this method is called before the thread structure is in place | |
491 // which means resource allocation cannot be used. | |
492 | |
493 // Compute size | |
494 int length= 0; | |
495 while (flagTable[length].name != NULL) length++; | |
496 | |
497 // Sort | |
498 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
499 for (int index = 0; index < length; index++) { | |
500 array[index] = &flagTable[index]; | |
501 } | |
502 qsort(array, length, sizeof(Flag*), compare_flags); | |
503 | |
504 // Print | |
505 for (int i = 0; i < length; i++) { | |
506 if (array[i]->origin /* naked field! */) { | |
507 array[i]->print_as_flag(tty); | |
508 tty->print(" "); | |
509 } | |
510 } | |
511 tty->cr(); | |
512 FREE_C_HEAP_ARRAY(Flag*, array); | |
513 } | |
514 | |
515 #ifndef PRODUCT | |
516 | |
517 | |
518 void CommandLineFlags::verify() { | |
519 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
520 } | |
521 | |
1150 | 522 #endif // PRODUCT |
523 | |
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524 void CommandLineFlags::printFlags(bool withComments) { |
0 | 525 // Print the flags sorted by name |
526 // note: this method is called before the thread structure is in place | |
527 // which means resource allocation cannot be used. | |
528 | |
529 // Compute size | |
530 int length= 0; | |
531 while (flagTable[length].name != NULL) length++; | |
532 | |
533 // Sort | |
534 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
535 for (int index = 0; index < length; index++) { | |
536 array[index] = &flagTable[index]; | |
537 } | |
538 qsort(array, length, sizeof(Flag*), compare_flags); | |
539 | |
540 // Print | |
541 tty->print_cr("[Global flags]"); | |
542 for (int i = 0; i < length; i++) { | |
543 if (array[i]->is_unlocked()) { | |
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544 array[i]->print_on(tty, withComments); |
0 | 545 } |
546 } | |
547 FREE_C_HEAP_ARRAY(Flag*, array); | |
548 } |