Summary: Added check to prevent reentry of signal chaining code
Reviewed-by: dcubed, acorn, dholmes

Reviewed-by: dsamersoff, kbarrett, hseigel

Summary: Fixed by removing all code related to LowMemoryProtection, which removed offending code.
Reviewed-by: dholmes, minqi

Reviewed-by: stuefe, dcubed

6536943: Bogus -Xcheck:jni warning for SIG_INT action for SIGINT in JVM started from non-interactive shell
Summary: check_signal_handler will print out Warning for SHURDOWN2_SIGNAL (SIGINT) is replaced by non-interactive shell. Fix by supply more information of the replacement to user.
Reviewed-by: dholmes
Contributed-by: yumin.qi@oracle.com

Reviewed-by: dcubed, pnauman, ctornqvi, dholmes, mschoene
Contributed-by: gerald.thornbrugh@oracle.com

Reviewed-by: dcubed, pnauman, ctornqvi, dholmes, mschoene
Contributed-by: gerald.thornbrugh@oracle.com

Summary: backout fix 8050808 which caused this regression and as requested.
Reviewed-by: hseigel

Reviewed-by: dcubed, dholmes, pnauman, ctornqvi, mschoene
Contributed-by: gerald.thornbrugh@oracle.com

Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

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

Reviewed-by: sspitsyn, shade, dholmes, acorn

Summary: Remove the misleading malloc macro and cleanup the code
Reviewed-by: dsamersoff, kvn
Contributed-by: goetz.lindenmaier@sap.com

8130910: hsperfdata file is created in wrong directory and not cleaned up if /tmp/hsperfdata_<username> has wrong permissions
Summary: Add check for fchir() failure and disable shared PerfMemory in that case.
Reviewed-by: dcubed, simonis, gthornbr

8033696: "assert(thread != NULL) failed: just checking" due to Thread::current() and JNI pthread interaction
Reviewed-by: dholmes, dsamersoff
Contributed-by: andreas.eriksson@oracle.com

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

Summary: Use spin lock to manage ParkEvent and PlatformEvent free lists.
Reviewed-by: dholmes, fparain, dcubed, acorn

Reviewed-by: sundar, sspitsyn

Reviewed-by: twisti, stefank

Reviewed-by: dholmes, kvn, stefank, twisti

8031968: Mac OS X: VM starts the agent by calling both Agent_OnAttach and Agent_OnAttach_L functions if its agent library is dynamically linked.
Summary: Make sure we only look for statically linked agents in the main process image
Reviewed-by: dsamersoff, bpittore, dcubed

Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

8029727: On OS X dtrace probes Call<type>MethodA/Call<type>MethodV are not fired.
8029728: On OS X dtrace probes SetStaticBooleanField are not fired
Reviewed-by: kamg, dsamersoff

Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected.
Reviewed-by: kvn

Summary: Use HR timer when available for os::elapsed_counter() on linux/bsd. Add a new counter for the JVM uptime.
Reviewed-by: dholmes, sla

Summary: Disable but not completely remove the XAWT and headless toolkits on Mac OS X
Reviewed-by: dholmes
Contributed-by: david.dehaven@oracle.com

Summary: Implement using the host_statistics64() api.
Reviewed-by: dsamersoff, morris, dholmes, coleenp, hseigel, dcubed
Contributed-by: gerard.ziemski@oracle.com

Summary: Usage of u4 as a type for thread_id cause a compilation error on platform, where thread_id is a pointer
Reviewed-by: sla, sspitsyn, minqi

Summary: Couple of nits in os_bsd.cpp brake compilation of open hotspot on non-apple platforms
Reviewed-by: sla, sspitsyn

Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes

8023393: Need to suppress info message if -Xcheck:jni used with libjsig.dylab on Mac OSX
Summary: Rewrite 7051189 test in Java, port Linux fix for 7051189 to Mac OSX.
Reviewed-by: coleenp, dholmes, mseledtsov, ccheung

Summary: Use pthread_mach_thread_np() instead of mach_thread_self() to avoid leaking resources
Reviewed-by: dholmes, rbackman

Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso

Summary: stat64 have to be replaced with stat
Reviewed-by: dholmes, kmo
Contributed-by: rednaxelafx@gmail.com

Summary: Implement methods printing posix signal information and call them in unix os files.
Reviewed-by: kvn, dholmes, twisti
Contributed-by: thomas.stuefe@sap.com

Summary: Dl_info struct should only be used if dladdr() has returned non-zero (no errors) and always check the dladdr() return value; Dl_info.dli_sname and Dl_info.dli_saddr fields should only be used if non-NULL; update/improve runtime/6888954/vmerrors.sh test
Reviewed-by: dsamersoff, zgu, hseigel, coleenp

Summary: Distinguish PPC, PPC64 and PPC32. PPC should guard code needed on any PPC system. PPC32 and PPC64 should guard code needed in a port for the ppc64 or ppc32 instruction set.
Reviewed-by: kvn

Summary: Fixed NMT race condition for realloc, uncommit and release
Reviewed-by: coleenp, ccheung

7162400: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand
Summary: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand
Reviewed-by: dcubed, dholmes, sspitsyn, mgerdin, ctornqvi, dsamersoff

Summary: Removed restart macros from all os:close calls on Solaris, Linux, MacOS X platforms.
Reviewed-by: dcubed, dholmes