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RFR: JDK-8172791 fixing issues with Reserved Stack Area

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RFR: JDK-8172791 fixing issues with Reserved Stack Area

frederic parain
Greetings,

Please review this fix which addresses several issues with the
ReservedStackArea implementation:
   1 - the method look_for_reserved_stack_annotated_method() fails to
detect in-lined
        annotated methods, making the annotation ineffective for
in-lined methods
   2 - sometime an assertion failure related to reserved area status
occurs after incorrect
        restoring of guards pages during a return from runtime

Bug:
https://bugs.openjdk.java.net/browse/JDK-8172791

webrev:
http://cr.openjdk.java.net/~fparain/8172791/webrev.00/index.html

This fix has been contributed by Andrew Haley.

Thank you,

Fred
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