Summary: Fire the gc-begin and gc-end probes for G1.
Reviewed-by: kamg, ysr, jcoomes

Summary: Age bits need not enter the mark-word preservation calculus; also affected, in addition to CMS, per CR synopsis above, were ParNew (but not DefNew), ParallelScavenge and G1, albeit to a lesser degree than CMS.
Reviewed-by: tonyp, johnc

Summary: Initialize the _is_alive_non_header field of G1's reference processor with an instance of the G1CMIsAliveClosure. This will stop adding reference objects with live referents to the discovered reference lists unnecessarily.
Reviewed-by: tonyp, ysr, jwilhelm, brutisso

Summary: move socket_available into os_linux.cpp to avoid inclusion of ioctl.h in os_linux.inline.hpp
Reviewed-by: coleenp, stefank, ikrylov

Summary: An interference between a fix for 6993125 and disabled optimization in compressedStream.cpp produces a warning with VS2010. Disable the warning for the code fragment for which the optimizations are disabled.
Reviewed-by: kvn

Summary: Updates to Visual Studio project creation and development launcher
Reviewed-by: stefank, coleenp

Summary: Don't recurse into sub-directories when looking for source files.
Reviewed-by: never, brutisso

7000559: G1: assertion failure !outer || (full_collections_started == _full_collections_completed + 1)
Summary: The concurrent marking thread can complete its operation and increment the full GC counter during a Full GC. This causes the nesting of increments to the start and end of Full GCs that we are expecting to be wrong. the fix is for the marking thread to join the suspendible thread set before incrementing the counter so that it's blocked until the Full GC (or any other safepoint) is finished. The change also includes some minor code cleanup (I renamed a parameter).
Reviewed-by: brutisso, ysr

Summary: missing null check in owns_pending_list_lock() because this can be called before pending_list_lock is initialized.
Reviewed-by: never, kvn

Reviewed-by: kvn, twisti

Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never

Summary: Update the HS20 build number to 04
Reviewed-by: jcoomes

Summary: add another ResourceObj debug field to distinguish garbage
Reviewed-by: dholmes, coleenp

Summary: Don't acquire methodData_lock while holding pending list lock
Reviewed-by: kvn, never, ysr

Summary: Check for CROSS_COMPILE_ARCH being set as an indicator to use ALT_COMPILER_PATH
Reviewed-by: acorn, ohair

Summary: Add 'GetThisObject' function
Reviewed-by: never, coleenp

Summary: Relaxed the assert by allowing NULL referents when discovery may be concurrent.
Reviewed-by: johnc, jcoomes

Summary: hotspot should check protection attribute besides the name and signature of the method when constructing vtable.
Reviewed-by: dcubed

Summary: ifdef definitions for PTRACE_GETREGS_REQ clarified
Reviewed-by: dholmes

Summary: Implementation of the CAS primitive for x64 compressed oops was incorrect. It kills rscratch2 register (r11), which is allocatable in C1. Also, we don't need to restore cmpval as it's never used after that, so we need only one temporary register, which can be scratch1.
Reviewed-by: kvn, never

7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp