Reviewed-by: shade, apetushkov

8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

Reviewed-by: thartmann, kvn

Summary: Prevent downgraded compilation tasks from recompiling.
Reviewed-by: sgehwolf, thartmann, andrew

Summary: Added missing code to close file pointer.
Reviewed-by: kvn

Summary: Open compilation log files in write-mode and close before deletion attempt.
Reviewed-by: vlivanov

Summary: Ensure MethodCounters are created before method is enqueued for compilation
Reviewed-by: kvn, drchase, jiangli, roland

Reviewed-by: roland, iveresov

Summary: Acquire lock before calling notify()
Reviewed-by: twisti, thartmann

8081202: Hotspot compile warning: "Invalid suffix on literal; C++11 requires a space between literal and identifier"
Summary: Need to add a space between macro identifier and string literal
Reviewed-by: bpittore, stefank, dholmes, kbarrett

Summary: Remove product flag -XX:CompilationRepeat
Reviewed-by: kvn, iveresov

Summary: Free task after getting next pointer of freelist.
Reviewed-by: kvn, adlertz

Summary: Remove unnecessary lock in CompileBroker::mark_on_stack() that causes the deadlock
Reviewed-by: kvn, dcubed

8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti

Summary: Fixes broken memory freeing of compile queue tasks and makes sure that blocking compiles do not hang the VM if compilation gets disabled due to a full code cache.
Reviewed-by: kvn, iveresov

Reviewed-by: kvn, iveresov

Summary: Add length checks where necessary
Reviewed-by: coleenp, mschoene

Summary: Use atomic operations to provide sequential compilation IDs
Reviewed-by: kvn, twisti

Summary: smaller shared changes required to build the C2 compiler on PPC64.
Reviewed-by: kvn

Summary: Fixed proper sweeping of small code cache sizes
Reviewed-by: kvn, iveresov

8026949: -Xint flag prints wrong warning: Initialization of C1 thread failed (no space to run compilers)
Summary: Exit compiler threads early during startup so that wrong error message is not printed
Reviewed-by: iveresov, twisti

8026407: VM crashes on linux-ppc and linux-i586 when there is not enough ReservedCodeCacheSize specified
Summary: Ensure currently required generation of AdapterHandlerLibrary::create_native_wrapper()
Reviewed-by: roland, iveresov

Summary: Ensure ensure correct initialization of compiler runtime
Reviewed-by: kvn, twisti

Summary: Ensure the thread is in correct state; rewrote test in Java
Reviewed-by: kvn, twisti

Summary: Code cache sweeping based on method hotness; removed speculatively disconnect
Reviewed-by: kvn, iveresov

Summary: store in _first_index not absolute index but an index relative to the last (youngest) jvms->_scloff value
Reviewed-by: roland, twisti

Summary: added #includes needed for ppc64 port. Renamed _MODEL_ppc to _MODEL_ppc_32 and renamed corresponding old _ppc files to _ppc_32.
Reviewed-by: dholmes, kvn

Reviewed-by: acorn, coleenp, sla
Contributed-by: NKaren Kinnear &lt;karen.kinnear@oracle.com&gt;, Bengt Rutisson &lt;bengt.rutisson@oracle.com&gt;, Calvin Cheung &lt;calvin.cheung@oracle.com&gt;, Erik Gahlin &lt;erik.gahlin@oracle.com&gt;, Erik Helin &lt;erik.helin@oracle.com&gt;, Jesper Wilhelmsson &lt;jesper.wilhelmsson@oracle.com&gt;, Keith McGuigan &lt;keith.mcguigan@oracle.com&gt;, Mattias Tobiasson &lt;mattias.tobiasson@oracle.com&gt;, Markus Gronlund &lt;markus.gronlund@oracle.com&gt;, Mikael Auno &lt;mikael.auno@oracle.com&gt;, Nils Eliasson &lt;nils.eliasson@oracle.com&gt;, Nils Loodin &lt;nils.loodin@oracle.com&gt;, Rickard Backman &lt;rickard.backman@oracle.com&gt;, Staffan Larsen &lt;staffan.larsen@oracle.com&gt;, Stefan Karlsson &lt;stefan.karlsson@oracle.com&gt;, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>

Summary: Added calling of the destructor of CompileLog so that files are closed. Added/moved memory allocation/deallocation of the string that contains the name of the log file to class CompileLog.
Reviewed-by: kvn, roland

Summary: Resurrected autobox elimination code and enabled part of it by default.
Reviewed-by: roland, twisti

Summary: remove unused parameter in dtrace macros
Reviewed-by: kvn, roland
Contributed-by: albert.noll@oracle.com

Summary: Keep sweeping regardless of if we are flushing
Reviewed-by: kvn, twisti

Reviewed-by: kvn, vlivanov

Summary: Remove continous free block requirement
Reviewed-by: kvn

Reviewed-by: kvn, vlivanov

Summary: when possible optimize out array bound checks, inserting predicates when needed.
Reviewed-by: never, kvn, twisti
Contributed-by: Nthomaswue <thomas.wuerthinger@oracle.com>

Summary: add NULL checks for compiler name
Reviewed-by: twisti, kvn

Summary: Use 0 to indicate id is NA, -1 for error or uninitalized
Reviewed-by: kvn, twisti

Reviewed-by: kvn, vlivanov
Contributed-by: NIgor Ignatyev <igor.ignatyev@oracle.com>

Summary: Adding more detailed output on CodeCache usage
Reviewed-by: kvn, vladidan
Contributed-by: NAlexander Harlap <alexander.harlap@oracle.com>