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6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents b83f7d608548
children
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1 #
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2 # Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
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3 # Copyright 2012, 2013 SAP AG. All rights reserved.
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4 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 #
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6 # This code is free software; you can redistribute it and/or modify it
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7 # under the terms of the GNU General Public License version 2 only, as
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8 # published by the Free Software Foundation.
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9 #
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10 # This code is distributed in the hope that it will be useful, but WITHOUT
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11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 # version 2 for more details (a copy is included in the LICENSE file that
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14 # accompanied this code).
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15 #
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16 # You should have received a copy of the GNU General Public License version
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17 # 2 along with this work; if not, write to the Free Software Foundation,
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18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 #
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20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 # or visit www.oracle.com if you need additional information or have any
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22 # questions.
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23 #
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24 #
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25
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26 # Produce 64 bits object files.
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27 CFLAGS += -q64
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28
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29 # Balanced tuning for recent versions of the POWER architecture (if supported by xlc).
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30 QTUNE=$(if $(CXX_SUPPORTS_BALANCED_TUNING),balanced,pwr5)
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31
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32 # Try to speed up the interpreter: use ppc64 instructions and inline
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33 # glue code for external functions.
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34 OPT_CFLAGS += -qarch=ppc64 -qtune=$(QTUNE) -qinlglue
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35
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36 # We need variable length arrays
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37 CFLAGS += -qlanglvl=c99vla
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38 # Just to check for unwanted macro redefinitions
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39 CFLAGS += -qlanglvl=noredefmac
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40
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41 # Suppress those "implicit private" warnings xlc gives.
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42 # - The omitted keyword "private" is assumed for base class "...".
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43 CFLAGS += -qsuppress=1540-0198
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44
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45 # Suppress the following numerous warning:
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46 # - 1540-1090 (I) The destructor of "..." might not be called.
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47 # - 1500-010: (W) WARNING in ...: Infinite loop. Program may not stop.
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48 # There are several infinite loops in the vm, suppress.
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49 CFLAGS += -qsuppress=1540-1090 -qsuppress=1500-010
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50
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51 # Suppress
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52 # - 540-1088 (W) The exception specification is being ignored.
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53 # caused by throw() in declaration of new() in nmethod.hpp.
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54 CFLAGS += -qsuppress=1540-1088
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55
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56 # Turn off floating-point optimizations that may alter program semantics
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57 OPT_CFLAGS += -qstrict
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58
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59 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp
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60 # and sharedRuntimeTrans.cpp on ppc64.
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61 # -qstrict turns off the following optimizations:
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62 # * Performing code motion and scheduling on computations such as loads
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63 # and floating-point computations that may trigger an exception.
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64 # * Relaxing conformance to IEEE rules.
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65 # * Reassociating floating-point expressions.
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66 # When using '-qstrict' there still remains one problem
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67 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all
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68 # mode, so don't optimize sharedRuntimeTrig.cpp at all.
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69 OPT_CFLAGS/sharedRuntimeTrig.o = $(OPT_CFLAGS/NOOPT)
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70 OPT_CFLAGS/sharedRuntimeTrans.o = $(OPT_CFLAGS/NOOPT)
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71
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72 # xlc 10.01 parameters for ipa compile.
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73 QIPA_COMPILE=$(if $(CXX_IS_V10),-qipa)
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74
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75 # Xlc 10.1 parameters for aggressive optimization:
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76 # - qhot=level=1: Most aggressive loop optimizations.
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77 # - qignerrno: Assume errno is not modified by system calls.
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78 # - qinline: Inline method calls. No suboptions for c++ compiles.
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79 # - qxflag=ASMMIDCOALFIX: Activate fix for -O3 problem in interpreter loop.
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80 # - qxflag=asmfastsync: Activate fix for performance problem with inline assembler with memory clobber.
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81 QV10_OPT=$(if $(CXX_IS_V10),-qxflag=ASMMIDCOALFIX -qxflag=asmfastsync)
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82 QV10_OPT_AGGRESSIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)
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83 QV10_OPT_CONSERVATIVE=$(if $(CXX_IS_V10),-qhot=level=1 -qignerrno -qinline)
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84
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85 # Disallow inlining for synchronizer.cpp, but perform O3 optimizations.
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86 OPT_CFLAGS/synchronizer.o = $(OPT_CFLAGS) -qnoinline
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87
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88 # Set all the xlC V10.1 options here.
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89 OPT_CFLAGS += $(QIPA_COMPILE) $(QV10_OPT) $(QV10_OPT_AGGRESSIVE)
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90
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91 export OBJECT_MODE=64
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92
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93 # Also build launcher as 64 bit executable.
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94 LAUNCHERFLAGS += -q64