8175312: SA: clhsdb: Provide an improved heap summary for 'universe' for G1GC Summary: Provide an improved heap summary for G1GC with parameters like 'capacity', 'used', 'free', etc with the 'universe' command, and introduce a new command 'g1regiondetails' to display the individual region details. Reviewed-by: sjohanss, minqi

8140359: get_locked_message_ext() should return Flag::MsgType Summary: Changed get_locked_message_ext() to return Flag::MsgType Reviewed-by: coleenp, rehn

8199356: Fix hotspot to allow stdlib to use libc++ and to allow changing the deployment target to 10.9 Summary: Remove conflicting poison min/max define Reviewed-by: kbarrett, lfoltan

8198608: Improvements to command-line flags printing Summary: Re-implemented Flag::print_on() Reviewed-by: dholmes, mikael, gziemski

8199741: NMT: Tag safepoint polling pages Summary: Added NMT tag for Safepoint polling pages Reviewed-by: coleenp, shade

8191954: AArch64: disable UseCISCSpill in C2 Reviewed-by: adinn, aph

8173100: AArch64: -XX:-UseOnStackReplacement does not work together with -XX:+TieredCompilation Summary: Fix hotspot jtreg test compiler/interpreter/DisableOSRTest.java failure on AArch64. Reviewed-by: aph, fyang

8199752: NMT: Memory allocated by Unsafe.allocateMemory should be tagged as mtOther Summary: Tag memory allocation from Usafe.allocateMemory as external memory allocation Reviewed-by: coleenp, stuefe

8199604: Rename CardTableModRefBS to CardTableBarrierSet Reviewed-by: stefank, pliden

8199685: Access arraycopy build failure with GCC 7.3.1 Reviewed-by: rkennke, pliden