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comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotOptions.java @ 21562:47bebae7454f

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Thu, 28 May 2015 21:58:33 +0200
parents graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotOptions.java@28cbfacd0518 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotOptions.java@d563baeca9df
children 4f63449b4422
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21561:ce2113326bc8 21562:47bebae7454f
21 * questions. 21 * questions.
22 */ 22 */
23 package com.oracle.jvmci.hotspot; 23 package com.oracle.jvmci.hotspot;
24 24
25 import static com.oracle.jvmci.hotspot.HotSpotOptionsLoader.*; 25 import static com.oracle.jvmci.hotspot.HotSpotOptionsLoader.*;
26 import static java.lang.Double.*;
27 26
28 import com.oracle.jvmci.debug.*; 27 import com.oracle.jvmci.debug.*;
29 import com.oracle.jvmci.options.*; 28 import com.oracle.jvmci.options.*;
30 import com.oracle.jvmci.options.OptionUtils.OptionConsumer;
31 import com.oracle.jvmci.runtime.*; 29 import com.oracle.jvmci.runtime.*;
32 30
33 //JaCoCo Exclude 31 //JaCoCo Exclude
34 32
35 /** 33 /**
38 */ 36 */
39 public class HotSpotOptions { 37 public class HotSpotOptions {
40 38
41 private static final String JVMCI_OPTION_PREFIX = "-G:"; 39 private static final String JVMCI_OPTION_PREFIX = "-G:";
42 40
43 /**
44 * Parses the JVMCI specific options specified to HotSpot (e.g., on the command line).
45 *
46 * @param optionsParsedClass the {@link Class} for {@link OptionsParsed}
47 * @return the implementations of {@link OptionsParsed} available
48 */
49 private static native OptionsParsed[] parseVMOptions(Class<?> optionsParsedClass);
50
51 static { 41 static {
52 // Debug should not be initialized until all options that may affect 42 // Debug should not be initialized until all options that may affect
53 // its initialization have been processed. 43 // its initialization have been processed.
54 assert !Debug.Initialization.isDebugInitialized() : "The class " + Debug.class.getName() + " must not be initialized before the JVMCI runtime has been initialized. " + 44 assert !Debug.Initialization.isDebugInitialized() : "The class " + Debug.class.getName() + " must not be initialized before the JVMCI runtime has been initialized. " +
55 "This can be fixed by placing a call to " + JVMCI.class.getName() + ".getRuntime() on the path that triggers initialization of " + Debug.class.getName(); 45 "This can be fixed by placing a call to " + JVMCI.class.getName() + ".getRuntime() on the path that triggers initialization of " + Debug.class.getName();
56 46
57 for (OptionsParsed handler : parseVMOptions(OptionsParsed.class)) { 47 for (OptionsParsed handler : Services.load(OptionsParsed.class)) {
58 handler.apply(); 48 handler.apply();
59 } 49 }
60 } 50 }
61 51
62 /** 52 /**
63 * Ensures {@link HotSpotOptions} is initialized. 53 * Ensures {@link HotSpotOptions} is initialized.
64 */ 54 */
65 public static void initialize() { 55 public static void initialize() {
66 } 56 }
67 57
68 /** 58 static void printFlags() {
69 * Helper for the VM code called by {@link #parseVMOptions}. 59 OptionUtils.printFlags(options, JVMCI_OPTION_PREFIX);
70 *
71 * @param name the name of a parsed option
72 * @param option the object encapsulating the option
73 * @param spec specification of boolean option value, type of option value or action to take
74 */
75 static void setOption(String name, OptionValue<?> option, char spec, String stringValue, long primitiveValue) {
76 switch (spec) {
77 case '+':
78 option.setValue(Boolean.TRUE);
79 break;
80 case '-':
81 option.setValue(Boolean.FALSE);
82 break;
83 case '?':
84 OptionUtils.printFlags(options, JVMCI_OPTION_PREFIX);
85 break;
86 case ' ':
87 OptionUtils.printNoMatchMessage(options, name, JVMCI_OPTION_PREFIX);
88 break;
89 case 'i':
90 option.setValue((int) primitiveValue);
91 break;
92 case 'f':
93 option.setValue((float) longBitsToDouble(primitiveValue));
94 break;
95 case 'd':
96 option.setValue(longBitsToDouble(primitiveValue));
97 break;
98 case 's':
99 option.setValue(stringValue);
100 break;
101 }
102 } 60 }
103 61
104 /** 62 public native Object getOptionValue(String optionName);
105 * Parses a given option value specification.
106 *
107 * @param option the specification of an option and its value
108 * @param setter the object to notify of the parsed option and value. If null, the
109 * {@link OptionValue#setValue(Object)} method of the specified option is called
110 * instead.
111 */
112 public static boolean parseOption(String option, OptionConsumer setter) {
113 return OptionUtils.parseOption(options, option, JVMCI_OPTION_PREFIX, setter);
114 }
115 } 63 }