hg: jdk/jdk: 8199067: [REDO] NMT: Enhance thread stack tracking

[zgu at redhat.com]

Changeset: 33a76b934213
Author:    zgu
Date:      2018-05-03 08:07 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/33a76b934213

8199067: [REDO] NMT: Enhance thread stack tracking
Summary: Precise thread stack tracking on Linux and Windows
Reviewed-by: stuefe, coleenp

! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/windows/os_windows.cpp
! src/hotspot/share/runtime/os.cpp
! src/hotspot/share/runtime/os.hpp
! src/hotspot/share/services/memTracker.hpp
! src/hotspot/share/services/virtualMemoryTracker.cpp
! src/hotspot/share/services/virtualMemoryTracker.hpp
+ test/hotspot/gtest/runtime/test_committed_virtualmemory.cpp