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ASSEMBLY_EXCEPTION@e7dead7e90af

ASSEMBLY_EXCEPTION

Mon, 19 Dec 2011 10:02:05 -0800

author
johnc
date
Mon, 19 Dec 2011 10:02:05 -0800
changeset 3339
e7dead7e90af
parent 1907
c18cbe5936b8
child 6876
710a3c8b516e
child 8636
f973811078b9
permissions
-rw-r--r--

7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr

     1 

     2 OPENJDK ASSEMBLY EXCEPTION

     3 

     4 The OpenJDK source code made available by Oracle at openjdk.java.net and

     5 openjdk.dev.java.net ("OpenJDK Code") is distributed under the terms of the

     6 GNU General Public License <http://www.gnu.org/copyleft/gpl.html> version 2

     7 only ("GPL2"), with the following clarification and special exception.

     8 

     9     Linking this OpenJDK Code statically or dynamically with other code

    10     is making a combined work based on this library.  Thus, the terms

    11     and conditions of GPL2 cover the whole combination.

    12 

    13     As a special exception, Oracle gives you permission to link this

    14     OpenJDK Code with certain code licensed by Oracle as indicated at

    15     http://openjdk.java.net/legal/exception-modules-2007-05-08.html

    16     ("Designated Exception Modules") to produce an executable,

    17     regardless of the license terms of the Designated Exception Modules,

    18     and to copy and distribute the resulting executable under GPL2,

    19     provided that the Designated Exception Modules continue to be

    20     governed by the licenses under which they were offered by Oracle.

    21 

    22 As such, it allows licensees and sublicensees of Oracle's GPL2 OpenJDK Code to

    23 build an executable that includes those portions of necessary code that Oracle

    24 could not provide under GPL2 (or that Oracle has provided under GPL2 with the

    25 Classpath exception).  If you modify or add to the OpenJDK code, that new

    26 GPL2 code may still be combined with Designated Exception Modules if the

    27 new code is made subject to this exception by its copyright holder.

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