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comparison agent/src/share/classes/sun/jvm/hotspot/runtime/VM.java @ 8065:f82bcc429e8c

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8007901: SA: Don't read flag values as constants Reviewed-by: dholmes, mikael
author sla
date Mon, 18 Feb 2013 10:43:07 +0100
parents ec0c4951286c
children 38ea2efa32a7
comparison
equal deleted inserted replaced
8064:dc1de5e78a85 8065:f82bcc429e8c
88 private Bytes bytes; 88 private Bytes bytes;
89 89
90 /** Flags indicating whether we are attached to a core, C1, or C2 build */ 90 /** Flags indicating whether we are attached to a core, C1, or C2 build */
91 private boolean usingClientCompiler; 91 private boolean usingClientCompiler;
92 private boolean usingServerCompiler; 92 private boolean usingServerCompiler;
93 /** Flag indicating whether UseTLAB is turned on */
94 private boolean useTLAB;
95 /** Flag indicating whether invokedynamic support is on */
96 private boolean enableInvokeDynamic;
97 /** alignment constants */ 93 /** alignment constants */
98 private boolean isLP64; 94 private boolean isLP64;
99 private int bytesPerLong; 95 private int bytesPerLong;
100 private int bytesPerWord; 96 private int bytesPerWord;
101 private int objectAlignmentInBytes; 97 private int objectAlignmentInBytes;
324 usingClientCompiler = true; 320 usingClientCompiler = true;
325 } 321 }
326 } 322 }
327 } 323 }
328 324
329 useTLAB = (db.lookupIntConstant("UseTLAB").intValue() != 0);
330 enableInvokeDynamic = (db.lookupIntConstant("EnableInvokeDynamic").intValue() != 0);
331
332 if (debugger != null) { 325 if (debugger != null) {
333 isLP64 = debugger.getMachineDescription().isLP64(); 326 isLP64 = debugger.getMachineDescription().isLP64();
334 } 327 }
335 bytesPerLong = db.lookupIntConstant("BytesPerLong").intValue(); 328 bytesPerLong = db.lookupIntConstant("BytesPerLong").intValue();
336 bytesPerWord = db.lookupIntConstant("BytesPerWord").intValue(); 329 bytesPerWord = db.lookupIntConstant("BytesPerWord").intValue();
577 } else{ 570 } else{
578 return (((long) oneHalf) << 32) | (((long) otherHalf) & 0x00000000FFFFFFFFL); 571 return (((long) oneHalf) << 32) | (((long) otherHalf) & 0x00000000FFFFFFFFL);
579 } 572 }
580 } 573 }
581 574
582 /** Indicates whether Thread-Local Allocation Buffers are used */
583 public boolean getUseTLAB() {
584 return useTLAB;
585 }
586
587 public boolean getEnableInvokeDynamic() {
588 return enableInvokeDynamic;
589 }
590
591 public TypeDataBase getTypeDataBase() { 575 public TypeDataBase getTypeDataBase() {
592 return db; 576 return db;
593 } 577 }
594 578
595 public Universe getUniverse() { 579 public Universe getUniverse() {
818 if (objectAlignmentInBytes == 0) { 802 if (objectAlignmentInBytes == 0) {
819 Flag flag = getCommandLineFlag("ObjectAlignmentInBytes"); 803 Flag flag = getCommandLineFlag("ObjectAlignmentInBytes");
820 objectAlignmentInBytes = (flag == null) ? 8 : (int)flag.getIntx(); 804 objectAlignmentInBytes = (flag == null) ? 8 : (int)flag.getIntx();
821 } 805 }
822 return objectAlignmentInBytes; 806 return objectAlignmentInBytes;
807 }
808
809 /** Indicates whether Thread-Local Allocation Buffers are used */
810 public boolean getUseTLAB() {
811 Flag flag = getCommandLineFlag("UseTLAB");
812 return (flag == null) ? false: flag.getBool();
823 } 813 }
824 814
825 // returns null, if not available. 815 // returns null, if not available.
826 public Flag[] getCommandLineFlags() { 816 public Flag[] getCommandLineFlags() {
827 if (commandLineFlags == null) { 817 if (commandLineFlags == null) {