Reviewed-by: phh, bobv, coleenp, dcubed
Contributed-by: NJiangli Zhou <jiangli.zhou@oracle.com>

Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object).
Reviewed-by: johnc, brutisso

Reviewed-by: tonyp, jmasa

Reviewed-by: brutisso, johnc

Reviewed-by: acorn, phh, dcubed, sspitsyn

Summary: Store the "next chunk start index" in the length field of the to-space object, instead of the from-space object, so that we can always reliably read the size of all from-space objects.
Reviewed-by: johnc, ysr, jmasa

Summary: Setup thread register in MacroAssembler::incr_allocated_bytes() on x64
Reviewed-by: kvn

Summary: Expose existing Management::_begin_vm_creation_time via new accessor Management::begin_vm_creation_time().
Reviewed-by: acorn, dcubed

Reviewed-by: sspitsyn, dcubed, mchung, dholmes

Summary: Use JavaThread::jvmti_thread_state() instead of JvmtiThreadState::state_for().
Reviewed-by: coleenp, poonam, acorn

Summary: Add os::get_last_error(), replace getLastErrorString() by os::lasterror() in os_windows.cpp.
Reviewed-by: kamg, dholmes
Contributed-by: erik.gahlin@oracle.com

Summary: Used uintptr_t and void* for all the casts and checks in test_is_in.
Reviewed-by: tonyp, jmasa

Summary: Add rdtsc detection and inline generation.
Reviewed-by: kamg, dholmes
Contributed-by: karen.kinnear@oracle.com

Summary: Leave i_o attached to slow allocation call when there are no i_o users after the call.
Reviewed-by: iveresov, twisti

Summary: Replaced the code with a ShouldNotReachHere
Reviewed-by: tonyp, jmasa

7123315: instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count should be u2 type.
Summary: Change instanceKlass::_static_oop_field_count and instanceKlass::_java_fields_count to u2 type.
Reviewed-by: never, bdelsart, dholmes
Contributed-by: NJiangli Zhou <jiangli.zhou@oracle.com>

Summary: In os::free_memory() use mmap with the same attributes as for the heap space
Reviewed-by: kvn
Contributed-by: NAleksey Ignatenko <aleksey.v.ignatenko@intel.com>

Summary: Correct Allocate expansion code to preserve i_o when only slow call is generated.
Reviewed-by: iveresov

Reviewed-by: jcoomes

Summary: Distance is too large for one short branch in string_indexofC8().
Reviewed-by: iveresov

Summary: Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask.
Reviewed-by: tonyp, iveresov

Summary: Introduce a flag that is set when a heap expansion attempt during a GC fails so that we do not consantly attempt to expand the heap when it's going to fail anyway. This not only prevents the excessive ergo output (which is generated when a region allocation fails) but also avoids excessive and ultimately unsuccessful expansion attempts.
Reviewed-by: jmasa, johnc

Summary: fix usage of input register in assembly code for store check.
Reviewed-by: never