Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/globals.cpp @ 4715:6c995c08526c
7122880: Extend vendor-specific command interface to include manageable switches
Summary: Add Flag::external_ext()/writable_ext(), both return false.
Reviewed-by: coleenp, zgu
author | phh |
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date | Mon, 19 Dec 2011 15:50:47 -0500 |
parents | cd00eaeebef6 |
children | 4f25538b54c9 |
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 { | |
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85 return strcmp(kind, "{manageable}") == 0 || |
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86 strcmp(kind, "{product rw}") == 0 || |
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87 is_writeable_ext(); |
0 | 88 } |
89 | |
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90 // All flags except "manageable" are assumed to be internal flags. |
0 | 91 // Long term, we need to define a mechanism to specify which flags |
92 // are external/stable and change this function accordingly. | |
93 bool Flag::is_external() const { | |
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94 return strcmp(kind, "{manageable}") == 0 || is_external_ext(); |
0 | 95 } |
96 | |
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97 |
0 | 98 // Length of format string (e.g. "%.1234s") for printing ccstr below |
99 #define FORMAT_BUFFER_LEN 16 | |
100 | |
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101 void Flag::print_on(outputStream* st, bool withComments) { |
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102 st->print("%9s %-40s %c= ", type, name, (origin != DEFAULT ? ':' : ' ')); |
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103 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); |
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104 if (is_intx()) st->print("%-16ld", get_intx()); |
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105 if (is_uintx()) st->print("%-16lu", get_uintx()); |
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106 if (is_uint64_t()) st->print("%-16lu", get_uint64_t()); |
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107 if (is_double()) st->print("%-16f", get_double()); |
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108 |
0 | 109 if (is_ccstr()) { |
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110 const char* cp = get_ccstr(); |
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111 if (cp != NULL) { |
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112 const char* eol; |
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113 while ((eol = strchr(cp, '\n')) != NULL) { |
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114 char format_buffer[FORMAT_BUFFER_LEN]; |
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115 size_t llen = pointer_delta(eol, cp, sizeof(char)); |
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116 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, |
103 | 117 "%%." SIZE_FORMAT "s", llen); |
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118 st->print(format_buffer, cp); |
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119 st->cr(); |
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120 cp = eol+1; |
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121 st->print("%5s %-35s += ", "", name); |
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122 } |
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123 st->print("%-16s", cp); |
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124 } |
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125 else st->print("%-16s", ""); |
0 | 126 } |
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127 st->print("%-20s", kind); |
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128 if (withComments) { |
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129 #ifndef PRODUCT |
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130 st->print("%s", doc ); |
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131 #endif |
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132 } |
0 | 133 st->cr(); |
134 } | |
135 | |
136 void Flag::print_as_flag(outputStream* st) { | |
137 if (is_bool()) { | |
138 st->print("-XX:%s%s", get_bool() ? "+" : "-", name); | |
139 } else if (is_intx()) { | |
140 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); | |
141 } else if (is_uintx()) { | |
142 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); | |
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143 } else if (is_uint64_t()) { |
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144 st->print("-XX:%s=" UINT64_FORMAT, name, get_uint64_t()); |
0 | 145 } else if (is_ccstr()) { |
146 st->print("-XX:%s=", name); | |
103 | 147 const char* cp = get_ccstr(); |
148 if (cp != NULL) { | |
149 // Need to turn embedded '\n's back into separate arguments | |
150 // Not so efficient to print one character at a time, | |
151 // but the choice is to do the transformation to a buffer | |
152 // and print that. And this need not be efficient. | |
153 for (; *cp != '\0'; cp += 1) { | |
154 switch (*cp) { | |
155 default: | |
156 st->print("%c", *cp); | |
157 break; | |
158 case '\n': | |
159 st->print(" -XX:%s=", name); | |
160 break; | |
161 } | |
0 | 162 } |
163 } | |
164 } else { | |
165 ShouldNotReachHere(); | |
166 } | |
167 } | |
168 | |
169 // 4991491 do not "optimize out" the was_set false values: omitting them | |
170 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
171 | |
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172 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product}", DEFAULT }, |
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173 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{pd product}", DEFAULT }, |
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174 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{diagnostic}", DEFAULT }, |
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175 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{experimental}", DEFAULT }, |
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176 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{manageable}", DEFAULT }, |
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177 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{product rw}", DEFAULT }, |
0 | 178 |
179 #ifdef PRODUCT | |
180 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
181 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
182 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
183 #else | |
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184 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "", DEFAULT }, |
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185 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{pd}", DEFAULT }, |
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186 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{notproduct}", DEFAULT }, |
0 | 187 #endif |
188 | |
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189 #ifdef _LP64 |
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190 #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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191 #else |
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192 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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193 #endif // _LP64 |
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194 |
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195 #define C1_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 product}", DEFAULT }, |
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196 #define C1_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C1 pd product}", DEFAULT }, |
0 | 197 #ifdef PRODUCT |
198 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
199 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
200 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
201 #else | |
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202 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1}", DEFAULT }, |
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203 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C1 pd}", DEFAULT }, |
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204 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C1 notproduct}", DEFAULT }, |
0 | 205 #endif |
206 | |
207 | |
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208 #define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 product}", DEFAULT }, |
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209 #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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210 #define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 diagnostic}", DEFAULT }, |
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211 #define C2_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{C2 experimental}", DEFAULT }, |
0 | 212 #ifdef PRODUCT |
213 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
214 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
215 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
216 #else | |
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217 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2}", DEFAULT }, |
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218 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{C2 pd}", DEFAULT }, |
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219 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{C2 notproduct}", DEFAULT }, |
0 | 220 #endif |
221 | |
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222 #define SHARK_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark product}", DEFAULT }, |
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223 #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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224 #define SHARK_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) "{Shark diagnostic}", DEFAULT }, |
1692 | 225 #ifdef PRODUCT |
226 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
227 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
228 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
229 #else | |
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230 #define SHARK_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark}", DEFAULT }, |
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231 #define SHARK_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, doc, "{Shark pd}", DEFAULT }, |
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232 #define SHARK_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, doc, "{Shark notproduct}", DEFAULT }, |
1692 | 233 #endif |
0 | 234 |
235 static Flag flagTable[] = { | |
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236 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 | 237 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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238 #ifndef SERIALGC |
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239 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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240 #endif // SERIALGC |
0 | 241 #ifdef COMPILER1 |
242 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) | |
243 #endif | |
244 #ifdef COMPILER2 | |
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245 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 | 246 #endif |
1692 | 247 #ifdef SHARK |
248 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) | |
249 #endif | |
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250 FLAGTABLE_EXT |
0 | 251 {0, NULL, NULL} |
252 }; | |
253 | |
254 Flag* Flag::flags = flagTable; | |
255 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
256 | |
257 inline bool str_equal(const char* s, char* q, size_t len) { | |
258 // s is null terminated, q is not! | |
259 if (strlen(s) != (unsigned int) len) return false; | |
260 return strncmp(s, q, len) == 0; | |
261 } | |
262 | |
263 Flag* Flag::find_flag(char* name, size_t length) { | |
264 for (Flag* current = &flagTable[0]; current->name; current++) { | |
265 if (str_equal(current->name, name, length)) { | |
266 if (!(current->is_unlocked() || current->is_unlocker())) { | |
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267 // disable use of diagnostic or experimental flags until they |
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268 // are explicitly unlocked |
0 | 269 return NULL; |
270 } | |
271 return current; | |
272 } | |
273 } | |
274 return NULL; | |
275 } | |
276 | |
277 // Returns the address of the index'th element | |
278 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
279 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
280 return &Flag::flags[flag]; | |
281 } | |
282 | |
283 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
284 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
285 Flag* f = &Flag::flags[flag]; | |
286 return (f->origin == DEFAULT); | |
287 } | |
288 | |
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289 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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290 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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291 Flag* f = &Flag::flags[flag]; |
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292 return (f->origin == ERGONOMIC); |
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293 } |
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294 |
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295 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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296 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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297 Flag* f = &Flag::flags[flag]; |
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298 return (f->origin == COMMAND_LINE); |
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299 } |
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300 |
0 | 301 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
302 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
303 if (result == NULL) return false; | |
304 *value = (result->origin == COMMAND_LINE); | |
305 return true; | |
306 } | |
307 | |
308 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
309 Flag* result = Flag::find_flag(name, len); | |
310 if (result == NULL) return false; | |
311 if (!result->is_bool()) return false; | |
312 *value = result->get_bool(); | |
313 return true; | |
314 } | |
315 | |
316 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) { | |
317 Flag* result = Flag::find_flag(name, len); | |
318 if (result == NULL) return false; | |
319 if (!result->is_bool()) return false; | |
320 bool old_value = result->get_bool(); | |
321 result->set_bool(*value); | |
322 *value = old_value; | |
323 result->origin = origin; | |
324 return true; | |
325 } | |
326 | |
327 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) { | |
328 Flag* faddr = address_of_flag(flag); | |
329 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
330 faddr->set_bool(value); | |
331 faddr->origin = origin; | |
332 } | |
333 | |
334 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
335 Flag* result = Flag::find_flag(name, len); | |
336 if (result == NULL) return false; | |
337 if (!result->is_intx()) return false; | |
338 *value = result->get_intx(); | |
339 return true; | |
340 } | |
341 | |
342 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin) { | |
343 Flag* result = Flag::find_flag(name, len); | |
344 if (result == NULL) return false; | |
345 if (!result->is_intx()) return false; | |
346 intx old_value = result->get_intx(); | |
347 result->set_intx(*value); | |
348 *value = old_value; | |
349 result->origin = origin; | |
350 return true; | |
351 } | |
352 | |
353 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, FlagValueOrigin origin) { | |
354 Flag* faddr = address_of_flag(flag); | |
355 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
356 faddr->set_intx(value); | |
357 faddr->origin = origin; | |
358 } | |
359 | |
360 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
361 Flag* result = Flag::find_flag(name, len); | |
362 if (result == NULL) return false; | |
363 if (!result->is_uintx()) return false; | |
364 *value = result->get_uintx(); | |
365 return true; | |
366 } | |
367 | |
368 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin) { | |
369 Flag* result = Flag::find_flag(name, len); | |
370 if (result == NULL) return false; | |
371 if (!result->is_uintx()) return false; | |
372 uintx old_value = result->get_uintx(); | |
373 result->set_uintx(*value); | |
374 *value = old_value; | |
375 result->origin = origin; | |
376 return true; | |
377 } | |
378 | |
379 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, FlagValueOrigin origin) { | |
380 Flag* faddr = address_of_flag(flag); | |
381 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
382 faddr->set_uintx(value); | |
383 faddr->origin = origin; | |
384 } | |
385 | |
1064 | 386 bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { |
387 Flag* result = Flag::find_flag(name, len); | |
388 if (result == NULL) return false; | |
389 if (!result->is_uint64_t()) return false; | |
390 *value = result->get_uint64_t(); | |
391 return true; | |
392 } | |
393 | |
394 bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, FlagValueOrigin origin) { | |
395 Flag* result = Flag::find_flag(name, len); | |
396 if (result == NULL) return false; | |
397 if (!result->is_uint64_t()) return false; | |
398 uint64_t old_value = result->get_uint64_t(); | |
399 result->set_uint64_t(*value); | |
400 *value = old_value; | |
401 result->origin = origin; | |
402 return true; | |
403 } | |
404 | |
405 void CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, FlagValueOrigin origin) { | |
406 Flag* faddr = address_of_flag(flag); | |
407 guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); | |
408 faddr->set_uint64_t(value); | |
409 faddr->origin = origin; | |
410 } | |
411 | |
0 | 412 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { |
413 Flag* result = Flag::find_flag(name, len); | |
414 if (result == NULL) return false; | |
415 if (!result->is_double()) return false; | |
416 *value = result->get_double(); | |
417 return true; | |
418 } | |
419 | |
420 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin) { | |
421 Flag* result = Flag::find_flag(name, len); | |
422 if (result == NULL) return false; | |
423 if (!result->is_double()) return false; | |
424 double old_value = result->get_double(); | |
425 result->set_double(*value); | |
426 *value = old_value; | |
427 result->origin = origin; | |
428 return true; | |
429 } | |
430 | |
431 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, FlagValueOrigin origin) { | |
432 Flag* faddr = address_of_flag(flag); | |
433 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
434 faddr->set_double(value); | |
435 faddr->origin = origin; | |
436 } | |
437 | |
438 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
439 Flag* result = Flag::find_flag(name, len); | |
440 if (result == NULL) return false; | |
441 if (!result->is_ccstr()) return false; | |
442 *value = result->get_ccstr(); | |
443 return true; | |
444 } | |
445 | |
446 // Contract: Flag will make private copy of the incoming value. | |
447 // Outgoing value is always malloc-ed, and caller MUST call free. | |
448 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin) { | |
449 Flag* result = Flag::find_flag(name, len); | |
450 if (result == NULL) return false; | |
451 if (!result->is_ccstr()) return false; | |
452 ccstr old_value = result->get_ccstr(); | |
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453 char* new_value = NULL; |
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454 if (*value != NULL) { |
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455 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1); |
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456 strcpy(new_value, *value); |
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457 } |
0 | 458 result->set_ccstr(new_value); |
459 if (result->origin == DEFAULT && old_value != NULL) { | |
460 // Prior value is NOT heap allocated, but was a literal constant. | |
461 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1); | |
462 strcpy(old_value_to_free, old_value); | |
463 old_value = old_value_to_free; | |
464 } | |
465 *value = old_value; | |
466 result->origin = origin; | |
467 return true; | |
468 } | |
469 | |
470 // Contract: Flag will make private copy of the incoming value. | |
471 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, FlagValueOrigin origin) { | |
472 Flag* faddr = address_of_flag(flag); | |
473 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
474 ccstr old_value = faddr->get_ccstr(); | |
475 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1); | |
476 strcpy(new_value, value); | |
477 faddr->set_ccstr(new_value); | |
478 if (faddr->origin != DEFAULT && old_value != NULL) { | |
479 // Prior value is heap allocated so free it. | |
480 FREE_C_HEAP_ARRAY(char, old_value); | |
481 } | |
482 faddr->origin = origin; | |
483 } | |
484 | |
485 extern "C" { | |
486 static int compare_flags(const void* void_a, const void* void_b) { | |
487 return strcmp((*((Flag**) void_a))->name, (*((Flag**) void_b))->name); | |
488 } | |
489 } | |
490 | |
491 void CommandLineFlags::printSetFlags() { | |
492 // Print which flags were set on the command line | |
493 // note: this method is called before the thread structure is in place | |
494 // which means resource allocation cannot be used. | |
495 | |
496 // Compute size | |
497 int length= 0; | |
498 while (flagTable[length].name != NULL) length++; | |
499 | |
500 // Sort | |
501 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
502 for (int index = 0; index < length; index++) { | |
503 array[index] = &flagTable[index]; | |
504 } | |
505 qsort(array, length, sizeof(Flag*), compare_flags); | |
506 | |
507 // Print | |
508 for (int i = 0; i < length; i++) { | |
509 if (array[i]->origin /* naked field! */) { | |
510 array[i]->print_as_flag(tty); | |
511 tty->print(" "); | |
512 } | |
513 } | |
514 tty->cr(); | |
515 FREE_C_HEAP_ARRAY(Flag*, array); | |
516 } | |
517 | |
518 #ifndef PRODUCT | |
519 | |
520 | |
521 void CommandLineFlags::verify() { | |
522 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
523 } | |
524 | |
1150 | 525 #endif // PRODUCT |
526 | |
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527 void CommandLineFlags::printFlags(bool withComments) { |
0 | 528 // Print the flags sorted by name |
529 // note: this method is called before the thread structure is in place | |
530 // which means resource allocation cannot be used. | |
531 | |
532 // Compute size | |
533 int length= 0; | |
534 while (flagTable[length].name != NULL) length++; | |
535 | |
536 // Sort | |
537 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
538 for (int index = 0; index < length; index++) { | |
539 array[index] = &flagTable[index]; | |
540 } | |
541 qsort(array, length, sizeof(Flag*), compare_flags); | |
542 | |
543 // Print | |
544 tty->print_cr("[Global flags]"); | |
545 for (int i = 0; i < length; i++) { | |
546 if (array[i]->is_unlocked()) { | |
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547 array[i]->print_on(tty, withComments); |
0 | 548 } |
549 } | |
550 FREE_C_HEAP_ARRAY(Flag*, array); | |
551 } |