Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 5984:fd09f2d8283e
7157141: crash in 64 bit with corrupted oops
Reviewed-by: kvn, iveresov
author | never |
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date | Mon, 02 Apr 2012 16:05:56 -0700 |
parents | 80fe40862b02 |
children | f47478089efc |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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 | |
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84 // Get custom message for this locked flag, or return NULL if |
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85 // none is available. |
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86 void Flag::get_locked_message(char* buf, int buflen) const { |
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87 get_locked_message_ext(buf, buflen); |
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88 } |
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89 |
0 | 90 bool Flag::is_writeable() const { |
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91 return strcmp(kind, "{manageable}") == 0 || |
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92 strcmp(kind, "{product rw}") == 0 || |
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93 is_writeable_ext(); |
0 | 94 } |
95 | |
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96 // All flags except "manageable" are assumed to be internal flags. |
0 | 97 // Long term, we need to define a mechanism to specify which flags |
98 // are external/stable and change this function accordingly. | |
99 bool Flag::is_external() const { | |
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100 return strcmp(kind, "{manageable}") == 0 || is_external_ext(); |
0 | 101 } |
102 | |
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103 |
0 | 104 // Length of format string (e.g. "%.1234s") for printing ccstr below |
105 #define FORMAT_BUFFER_LEN 16 | |
106 | |
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107 void Flag::print_on(outputStream* st, bool withComments) { |
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108 st->print("%9s %-40s %c= ", type, name, (origin != DEFAULT ? ':' : ' ')); |
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109 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); |
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110 if (is_intx()) st->print("%-16ld", get_intx()); |
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111 if (is_uintx()) st->print("%-16lu", get_uintx()); |
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112 if (is_uint64_t()) st->print("%-16lu", get_uint64_t()); |
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113 if (is_double()) st->print("%-16f", get_double()); |
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114 |
0 | 115 if (is_ccstr()) { |
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116 const char* cp = get_ccstr(); |
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117 if (cp != NULL) { |
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118 const char* eol; |
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119 while ((eol = strchr(cp, '\n')) != NULL) { |
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120 char format_buffer[FORMAT_BUFFER_LEN]; |
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121 size_t llen = pointer_delta(eol, cp, sizeof(char)); |
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122 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, |
103 | 123 "%%." SIZE_FORMAT "s", llen); |
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124 st->print(format_buffer, cp); |
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125 st->cr(); |
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126 cp = eol+1; |
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127 st->print("%5s %-35s += ", "", name); |
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128 } |
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129 st->print("%-16s", cp); |
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130 } |
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131 else st->print("%-16s", ""); |
0 | 132 } |
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133 st->print("%-20s", kind); |
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134 if (withComments) { |
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135 #ifndef PRODUCT |
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136 st->print("%s", doc ); |
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137 #endif |
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138 } |
0 | 139 st->cr(); |
140 } | |
141 | |
142 void Flag::print_as_flag(outputStream* st) { | |
143 if (is_bool()) { | |
144 st->print("-XX:%s%s", get_bool() ? "+" : "-", name); | |
145 } else if (is_intx()) { | |
146 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); | |
147 } else if (is_uintx()) { | |
148 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); | |
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149 } else if (is_uint64_t()) { |
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150 st->print("-XX:%s=" UINT64_FORMAT, name, get_uint64_t()); |
0 | 151 } else if (is_ccstr()) { |
152 st->print("-XX:%s=", name); | |
103 | 153 const char* cp = get_ccstr(); |
154 if (cp != NULL) { | |
155 // Need to turn embedded '\n's back into separate arguments | |
156 // Not so efficient to print one character at a time, | |
157 // but the choice is to do the transformation to a buffer | |
158 // and print that. And this need not be efficient. | |
159 for (; *cp != '\0'; cp += 1) { | |
160 switch (*cp) { | |
161 default: | |
162 st->print("%c", *cp); | |
163 break; | |
164 case '\n': | |
165 st->print(" -XX:%s=", name); | |
166 break; | |
167 } | |
0 | 168 } |
169 } | |
170 } else { | |
171 ShouldNotReachHere(); | |
172 } | |
173 } | |
174 | |
175 // 4991491 do not "optimize out" the was_set false values: omitting them | |
176 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
177 | |
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178 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product}", DEFAULT }, |
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179 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{pd product}", DEFAULT }, |
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180 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{diagnostic}", DEFAULT }, |
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181 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{experimental}", DEFAULT }, |
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182 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{manageable}", DEFAULT }, |
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183 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product rw}", DEFAULT }, |
0 | 184 |
185 #ifdef PRODUCT | |
186 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
187 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
188 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
189 #else | |
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190 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "", DEFAULT }, |
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191 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{pd}", DEFAULT }, |
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192 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{notproduct}", DEFAULT }, |
0 | 193 #endif |
194 | |
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195 #ifdef _LP64 |
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196 #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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197 #else |
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198 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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199 #endif // _LP64 |
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200 |
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201 #define C1_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 product}", DEFAULT }, |
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202 #define C1_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 pd product}", DEFAULT }, |
0 | 203 #ifdef PRODUCT |
204 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
205 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
206 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
207 #else | |
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208 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1}", DEFAULT }, |
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209 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C1 pd}", DEFAULT }, |
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210 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1 notproduct}", DEFAULT }, |
0 | 211 #endif |
212 | |
213 | |
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214 #define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 product}", DEFAULT }, |
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215 #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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216 #define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 diagnostic}", DEFAULT }, |
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217 #define C2_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 experimental}", DEFAULT }, |
0 | 218 #ifdef PRODUCT |
219 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
220 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
221 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
222 #else | |
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223 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2}", DEFAULT }, |
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224 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C2 pd}", DEFAULT }, |
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225 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2 notproduct}", DEFAULT }, |
0 | 226 #endif |
227 | |
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228 #define SHARK_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark product}", DEFAULT }, |
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229 #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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230 #define SHARK_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark diagnostic}", DEFAULT }, |
1692 | 231 #ifdef PRODUCT |
232 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
233 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
234 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
235 #else | |
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236 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark}", DEFAULT }, |
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237 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{Shark pd}", DEFAULT }, |
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238 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark notproduct}", DEFAULT }, |
1692 | 239 #endif |
0 | 240 |
241 static Flag flagTable[] = { | |
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242 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 | 243 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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244 #ifndef SERIALGC |
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245 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) |
342
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246 #endif // SERIALGC |
0 | 247 #ifdef COMPILER1 |
248 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) | |
249 #endif | |
250 #ifdef COMPILER2 | |
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251 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 | 252 #endif |
1692 | 253 #ifdef SHARK |
254 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) | |
255 #endif | |
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256 FLAGTABLE_EXT |
0 | 257 {0, NULL, NULL} |
258 }; | |
259 | |
260 Flag* Flag::flags = flagTable; | |
261 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
262 | |
263 inline bool str_equal(const char* s, char* q, size_t len) { | |
264 // s is null terminated, q is not! | |
265 if (strlen(s) != (unsigned int) len) return false; | |
266 return strncmp(s, q, len) == 0; | |
267 } | |
268 | |
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269 // Search the flag table for a named flag |
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270 Flag* Flag::find_flag(char* name, size_t length, bool allow_locked) { |
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271 for (Flag* current = &flagTable[0]; current->name != NULL; current++) { |
0 | 272 if (str_equal(current->name, name, length)) { |
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273 // Found a matching entry. Report locked flags only if allowed. |
0 | 274 if (!(current->is_unlocked() || current->is_unlocker())) { |
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275 if (!allow_locked) { |
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276 // disable use of locked flags, e.g. diagnostic, experimental, |
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277 // commercial... until they are explicitly unlocked |
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278 return NULL; |
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279 } |
0 | 280 } |
281 return current; | |
282 } | |
283 } | |
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284 // Flag name is not in the flag table |
0 | 285 return NULL; |
286 } | |
287 | |
288 // Returns the address of the index'th element | |
289 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
290 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
291 return &Flag::flags[flag]; | |
292 } | |
293 | |
294 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
295 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
296 Flag* f = &Flag::flags[flag]; | |
297 return (f->origin == DEFAULT); | |
298 } | |
299 | |
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300 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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301 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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302 Flag* f = &Flag::flags[flag]; |
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303 return (f->origin == ERGONOMIC); |
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304 } |
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305 |
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306 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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307 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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308 Flag* f = &Flag::flags[flag]; |
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309 return (f->origin == COMMAND_LINE); |
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310 } |
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311 |
0 | 312 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
313 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
314 if (result == NULL) return false; | |
315 *value = (result->origin == COMMAND_LINE); | |
316 return true; | |
317 } | |
318 | |
319 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
320 Flag* result = Flag::find_flag(name, len); | |
321 if (result == NULL) return false; | |
322 if (!result->is_bool()) return false; | |
323 *value = result->get_bool(); | |
324 return true; | |
325 } | |
326 | |
327 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) { | |
328 Flag* result = Flag::find_flag(name, len); | |
329 if (result == NULL) return false; | |
330 if (!result->is_bool()) return false; | |
331 bool old_value = result->get_bool(); | |
332 result->set_bool(*value); | |
333 *value = old_value; | |
334 result->origin = origin; | |
335 return true; | |
336 } | |
337 | |
338 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) { | |
339 Flag* faddr = address_of_flag(flag); | |
340 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
341 faddr->set_bool(value); | |
342 faddr->origin = origin; | |
343 } | |
344 | |
345 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
346 Flag* result = Flag::find_flag(name, len); | |
347 if (result == NULL) return false; | |
348 if (!result->is_intx()) return false; | |
349 *value = result->get_intx(); | |
350 return true; | |
351 } | |
352 | |
353 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin) { | |
354 Flag* result = Flag::find_flag(name, len); | |
355 if (result == NULL) return false; | |
356 if (!result->is_intx()) return false; | |
357 intx old_value = result->get_intx(); | |
358 result->set_intx(*value); | |
359 *value = old_value; | |
360 result->origin = origin; | |
361 return true; | |
362 } | |
363 | |
364 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, FlagValueOrigin origin) { | |
365 Flag* faddr = address_of_flag(flag); | |
366 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
367 faddr->set_intx(value); | |
368 faddr->origin = origin; | |
369 } | |
370 | |
371 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
372 Flag* result = Flag::find_flag(name, len); | |
373 if (result == NULL) return false; | |
374 if (!result->is_uintx()) return false; | |
375 *value = result->get_uintx(); | |
376 return true; | |
377 } | |
378 | |
379 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin) { | |
380 Flag* result = Flag::find_flag(name, len); | |
381 if (result == NULL) return false; | |
382 if (!result->is_uintx()) return false; | |
383 uintx old_value = result->get_uintx(); | |
384 result->set_uintx(*value); | |
385 *value = old_value; | |
386 result->origin = origin; | |
387 return true; | |
388 } | |
389 | |
390 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, FlagValueOrigin origin) { | |
391 Flag* faddr = address_of_flag(flag); | |
392 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
393 faddr->set_uintx(value); | |
394 faddr->origin = origin; | |
395 } | |
396 | |
1064 | 397 bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { |
398 Flag* result = Flag::find_flag(name, len); | |
399 if (result == NULL) return false; | |
400 if (!result->is_uint64_t()) return false; | |
401 *value = result->get_uint64_t(); | |
402 return true; | |
403 } | |
404 | |
405 bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin) { | |
406 Flag* result = Flag::find_flag(name, len); | |
407 if (result == NULL) return false; | |
408 if (!result->is_uint64_t()) return false; | |
409 uint64_t old_value = result->get_uint64_t(); | |
410 result->set_uint64_t(*value); | |
411 *value = old_value; | |
412 result->origin = origin; | |
413 return true; | |
414 } | |
415 | |
416 void CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, FlagValueOrigin origin) { | |
417 Flag* faddr = address_of_flag(flag); | |
418 guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); | |
419 faddr->set_uint64_t(value); | |
420 faddr->origin = origin; | |
421 } | |
422 | |
0 | 423 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { |
424 Flag* result = Flag::find_flag(name, len); | |
425 if (result == NULL) return false; | |
426 if (!result->is_double()) return false; | |
427 *value = result->get_double(); | |
428 return true; | |
429 } | |
430 | |
431 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin) { | |
432 Flag* result = Flag::find_flag(name, len); | |
433 if (result == NULL) return false; | |
434 if (!result->is_double()) return false; | |
435 double old_value = result->get_double(); | |
436 result->set_double(*value); | |
437 *value = old_value; | |
438 result->origin = origin; | |
439 return true; | |
440 } | |
441 | |
442 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, FlagValueOrigin origin) { | |
443 Flag* faddr = address_of_flag(flag); | |
444 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
445 faddr->set_double(value); | |
446 faddr->origin = origin; | |
447 } | |
448 | |
449 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
450 Flag* result = Flag::find_flag(name, len); | |
451 if (result == NULL) return false; | |
452 if (!result->is_ccstr()) return false; | |
453 *value = result->get_ccstr(); | |
454 return true; | |
455 } | |
456 | |
457 // Contract: Flag will make private copy of the incoming value. | |
458 // Outgoing value is always malloc-ed, and caller MUST call free. | |
459 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin) { | |
460 Flag* result = Flag::find_flag(name, len); | |
461 if (result == NULL) return false; | |
462 if (!result->is_ccstr()) return false; | |
463 ccstr old_value = result->get_ccstr(); | |
370
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464 char* new_value = NULL; |
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465 if (*value != NULL) { |
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466 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1); |
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467 strcpy(new_value, *value); |
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468 } |
0 | 469 result->set_ccstr(new_value); |
470 if (result->origin == DEFAULT && old_value != NULL) { | |
471 // Prior value is NOT heap allocated, but was a literal constant. | |
472 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1); | |
473 strcpy(old_value_to_free, old_value); | |
474 old_value = old_value_to_free; | |
475 } | |
476 *value = old_value; | |
477 result->origin = origin; | |
478 return true; | |
479 } | |
480 | |
481 // Contract: Flag will make private copy of the incoming value. | |
482 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, FlagValueOrigin origin) { | |
483 Flag* faddr = address_of_flag(flag); | |
484 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
485 ccstr old_value = faddr->get_ccstr(); | |
486 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1); | |
487 strcpy(new_value, value); | |
488 faddr->set_ccstr(new_value); | |
489 if (faddr->origin != DEFAULT && old_value != NULL) { | |
490 // Prior value is heap allocated so free it. | |
491 FREE_C_HEAP_ARRAY(char, old_value); | |
492 } | |
493 faddr->origin = origin; | |
494 } | |
495 | |
496 extern "C" { | |
497 static int compare_flags(const void* void_a, const void* void_b) { | |
498 return strcmp((*((Flag**) void_a))->name, (*((Flag**) void_b))->name); | |
499 } | |
500 } | |
501 | |
4773 | 502 void CommandLineFlags::printSetFlags(outputStream* out) { |
0 | 503 // Print which flags were set on the command line |
504 // note: this method is called before the thread structure is in place | |
505 // which means resource allocation cannot be used. | |
506 | |
507 // Compute size | |
508 int length= 0; | |
509 while (flagTable[length].name != NULL) length++; | |
510 | |
511 // Sort | |
512 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
513 for (int index = 0; index < length; index++) { | |
514 array[index] = &flagTable[index]; | |
515 } | |
516 qsort(array, length, sizeof(Flag*), compare_flags); | |
517 | |
518 // Print | |
519 for (int i = 0; i < length; i++) { | |
520 if (array[i]->origin /* naked field! */) { | |
4773 | 521 array[i]->print_as_flag(out); |
522 out->print(" "); | |
0 | 523 } |
524 } | |
4773 | 525 out->cr(); |
0 | 526 FREE_C_HEAP_ARRAY(Flag*, array); |
527 } | |
528 | |
529 #ifndef PRODUCT | |
530 | |
531 | |
532 void CommandLineFlags::verify() { | |
533 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
534 } | |
535 | |
1150 | 536 #endif // PRODUCT |
537 | |
4773 | 538 void CommandLineFlags::printFlags(outputStream* out, bool withComments) { |
0 | 539 // Print the flags sorted by name |
540 // note: this method is called before the thread structure is in place | |
541 // which means resource allocation cannot be used. | |
542 | |
543 // Compute size | |
544 int length= 0; | |
545 while (flagTable[length].name != NULL) length++; | |
546 | |
547 // Sort | |
548 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
549 for (int index = 0; index < length; index++) { | |
550 array[index] = &flagTable[index]; | |
551 } | |
552 qsort(array, length, sizeof(Flag*), compare_flags); | |
553 | |
554 // Print | |
4773 | 555 out->print_cr("[Global flags]"); |
0 | 556 for (int i = 0; i < length; i++) { |
557 if (array[i]->is_unlocked()) { | |
4773 | 558 array[i]->print_on(out, withComments); |
0 | 559 } |
560 } | |
561 FREE_C_HEAP_ARRAY(Flag*, array); | |
562 } |