Merge

8169373: Work around linux NPTL stack guard error.
Summary: Also skip libc guard page for compiler thread, merge similar code on linux platforms, and streamline libc guard page handling on linuxs390, linuxppc, aixppc.
Reviewed-by: dholmes, dcubed, kvn

8170307: Stack size option -Xss is ignored
Reviewed-by: dcubed, sspitsyn

8066474: Remove the lib/ directory from Linux and Solaris images
Reviewed-by: tbell, ihse, kvn

8166560: [s390] Basic enablement of s390 port.
Summary: Also fix problem with ARM Elf configuration.
Reviewed-by: dholmes, coleenp

8140520: segfault on solaris-amd64 with "-XX:VMThreadStackSize=1" option
Summary: Split the single thread_min_stack_allowed into three distinct values (java_thread_min_stack_allowed, compiler_thread_min_stack_allowed and vm_internal_thread_min_stack_allowed) on non-Windows platforms.
Reviewed-by: dcubed, gthornbr, dholmes, coleenp, fparain, aph

8165153: Crash in rebuild_cpu_to_node_map
Summary: use processor_count(), not active_processor_count() to determine physical number of CPUs
Reviewed-by: rehn, cjplummer

8163146: Remove os::check_heap on Windows
Reviewed-by: gtriantafill, coleenp, stuefe

8157907: Incorrect inclusion of atomic.hpp instead of atomic.inline.hpp
Summary: Remove atomic.inline.hpp and move the contents back into atomic.hpp
Reviewed-by: stefank, pliden, simonis

8157236: attach on ARMv7 fails with com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file
Summary: Add more diagnostic to attach code
Reviewed-by: dholmes, alanb

8159461: bigapps/Kitchensink/stressExitCode hits assert: Must be VMThread or JavaThread
Reviewed-by: fparain, simonis, dcubed

Merge

Merge

8162869: Small fixes for AIX perf memory and attach listener
Reviewed-by: dsamersoff, dholmes

Merge

8161258: Simplify including platform files.
Summary: Include patform files with macros cpu_header() etc. Do various cleanups of macro usages. Remove _64/_32 from adlc generated files and platform .hpp files. Merge stubRoutines_x86*.hpp. Remove empty mutex_<os>* files.
Reviewed-by: dholmes, coleenp, kbarrett

8160353: narrowing conversion error is occurred with GCC 6
Reviewed-by: kbarrett, dholmes

8159335: Fix problems with stack overflow handling.
Reviewed-by: dlong, coleenp, mdoerr

8150900: Implement diagnostic_pd
Reviewed-by: twisti, gziemski, kevinw

Merge

8140594: Various minor code improvements (compiler)
Summary: Various minor code improvements (compiler)
Reviewed-by: thartmann, kvn

8154715: Missing destructor and/or TLS clearing calls for terminating threads
Summary: clear TLS on return from thread->run() unless already done. Prohibit asynchronous thread deletion.
Reviewed-by: stefank, sspitsyn
Contributed-by: Brian Gardner <openjdk@getsnappy.com>

8073500: Prevent certain commercial flags from being changed at runtime
Summary: Implement new writeable mechanism for flag control
Reviewed-by: coleenp, iklam

8017629: G1: UseSHM in combination with a G1HeapRegionSize > os::large_page_size() falls back to use small pages
Reviewed-by: pliden, sjohanss, stuefe

8154566: os_linux.cpp parse_os_info gives non descriptive output on current SLES releases
Summary: For SuSE, read the first line of the /etc/xrelease file, also get PRETTY_NAME from /etc/os_release
Reviewed-by: gthornbr, coleenp

8146879: Add option for handling existing log files in UL
Reviewed-by: dsamersoff, gziemski, rehn

8151939: VM_Version_init() print buffer is too small
Summary: Increase buffer size, use logging to print out version and os information
Reviewed-by: kvn, rprotacio, mockner

Merge

8148425: strerror() function is not thread-safe
Reviewed-by: dholmes, coleenp

8137165: Tests fail in SR_Handler because thread is not VMThread or JavaThread
Reviewed-by: kbarrett

8151593: Cleanup definition/usage of INLINE/NOINLINE macros and add xlC support
Reviewed-by: coleenp, stuefe
Contributed-by: matthias.baesken@sap.com

8150353: PPC64LE: Support RTM on linux
Reviewed-by: mdoerr, kvn
Contributed-by: gromero@linux.vnet.ibm.com

8150619: Improve thread based logging introduced with 8149036
Reviewed-by: coleenp, dholmes

8149036: Add tracing for thread related events at os level
Reviewed-by: coleenp, mlarsson, dholmes

8149697: Fix for 8145725 is broken
Summary: As per the existing comment we needed to check the saved 'index' instead
Reviewed-by: gthornbr, dcubed, kbarrett

8148987: [Linux] Allow building on older systems without CPU_ALLOC support
Reviewed-by: dsamersoff, stuefe, dcubed

8145725: Remove the WorkAroundNPTLTimedWaitHang workaround
Reviewed-by: ddmitriev, stuefe, dcubed

6515172: Runtime.availableProcessors() ignores Linux taskset command
Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dcubed, stuefe, gthornbr

8146410: Interpreter functions are declared and defined in the wrong files
Summary: Moved functions to the correct files.
Reviewed-by: goetz, aph, twisti, mockner

8139864: Improve handling of stack protection zones.
Reviewed-by: stuefe, coleenp, fparain

8144219: [posix] Remove redundant code around os::print_siginfo()
Summary: for posix platforms, consolidate os::print_siginfo() in os_posix.cpp and remove cds fault special handling
Reviewed-by: dholmes, simonis

Merge

8145114: const-correctness for ucontext_t* reading functions
Reviewed-by: dholmes, coleenp

8073139: PPC64: User-visible arch directory and os.arch value on ppc64le cause issues with Java tooling
Summary: Set LIBARCH to ppc64le, make SA and hsdis work, have os.arch return ppc64le on PowerPC64 LE
Reviewed-by: dholmes, ihse
Contributed-by: Andrew Hughes <gnu.andrew@redhat.com>, Alexander Smundak <asmundak@google.com>

8046936: JEP 270: Reserved Stack Areas for Critical Sections
Reviewed-by: acorn, dcubed

Merge

Merge

Merge

8144881: Various fixes to linux/sparc
Summary: Fixed sigflags printing, format specfiers, codeCache includes and some function returns
Reviewed-by: dsamersoff, simonis

Merge

Merge

8132510: Replace ThreadLocalStorage with compiler/language-based thread-local variables
Summary: Used compiled-based TLS when available. Additional contributions by Thomas Stufe (AIX) and Andrew Haley (Aarch64)
Reviewed-by: stuefe, bdelsart, dcubed

Merge

8143291: Remove redundant coding around os::exception_name
Reviewed-by: dholmes, coleenp

Merge

Merge

Merge

8136978: Much nearly duplicated code for vmError support
Summary: moved all non os specific code in vmError_[os].cpp to vmError_posix.cpp, moved os specific code to os_[os].cpp and refactored all other references accordingly
Reviewed-by: stuefe, coleenp, dholmes

8141529: Fix handling of _JAVA_SR_SIGNUM
Reviewed-by: dholmes, stuefe, dsamersoff

8140482: Various minor code improvements (runtime)
Reviewed-by: dholmes, coleenp, sspitsyn, dsamersoff

8140648: Clean up remnants of fork1() from non-solaris platforms
Summary: Clean up any remnants of fork1() from Non-Solaris platforms
Reviewed-by: dholmes, goetz

8129526: Solaris: clean up another remnant of interruptible I/O
Reviewed-by: fparain, dcubed

Merge

8140274: methodHandles and constantPoolHandles should be passed as const references
Summary: modified code to use const reference parameters
Reviewed-by: sspitsyn, twisti

8139040: Fix initializations before ShouldNotReachHere() etc. and enable -Wuninitialized on linux.
Reviewed-by: stuefe, coleenp, roland

8136421: JEP 243: Java-Level JVM Compiler Interface
Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett

8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
8042894: runtime: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
Reviewed-by: goetz, brutisso

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8135298: Fix zero builds for "unknown" architectures on linux.
Summary: add zero architectures for default cases
Reviewed-by: coleenp
Contributed-by: Matthias Klose <doko@ubuntu.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
Contributed-by: christoph.langer@sap.com

8029453: java/util/concurrent/locks/ReentrantLock/TimeoutLockLoops.java failed by timeout
Reviewed-by: bdelsart, ddmitriev, dcubed

8075773: jps running as root fails after the fix of JDK-8050807
Reviewed-by: sla, dsamersoff, gthornbr
Contributed-by: cheleswer.sahu@oracle.com

8080298: Clean up os::...::supports_variable_stack_size()
Reviewed-by: kbarrett, simonis, stuefe, coleenp

6661889: thread id on Linux is inconsistent in error and log outputs
Reviewed-by: dholmes, kvn

8026324: hs_err improvement: Add summary section to hs_err file
8026333: hs_err improvement: Print GC Strategy
8026336: hs_err improvement: Print compilation mode, server, client or tiered
Summary: Added command line, summary cpu and os information to summary section. Moved time of crash and duration in summary section. Add GC strategy and compiler setting (tiered) to enhanced version string in error report. Moved the stack trace sooner in hs_err file.
Reviewed-by: dholmes, ctornqvi, ddmitriev

8087322: Implement a Semaphore utility class
Reviewed-by: kbarrett, dholmes

8078513: [linux] Clean up code relevant to LinuxThreads implementation
Reviewed-by: dholmes, sla, coleenp, simonis

8122937: [JEP 245] Validate JVM Command-Line Flag Arguments.
Summary: Validate the arguments to all JVM command-line flags so as to avoid crashes, and ensure that appropriate error messages are displayed when they are invalid.
Reviewed-by: ddmitriev, dholmes, kbarrett, drwhite, brutisso, coleenp

Merge

8085865: hs_err improvement: Printing /proc/cpuinfo makes too long hs_err files
Summary: summarize information from linux-x86; it's too long and redundant
Reviewed-by: gtriantafill, dholmes, mgerdin, dcubed

8079473: allow demangling to be optional in dll_address_to_function_name
Summary: add a demangling boolean argument to dll_address_to_function_name and decode
Reviewed-by: dholmes, simonis

8080718: Make -XX:CreateCoredumpOnCrash control core dumping in all cases
Reviewed-by: sla, dholmes, gtriantafill

Merge

8078470: [Linux] Replace syscall use in os::fork_and_exec with glibc fork() and execve()
Reviewed-by: stuefe, dsamersoff, dcubed

Merge

8079263: Suppress warning about disabling adaptive size policy when enabling UseLargePages with UseNUMA when adaptive size policy is disabled
Reviewed-by: jmasa, jwilhelm

8077276: allocating heap with UseLargePages and HugeTLBFS may trash existing memory mappings (linux)
Summary: Remove MAP_FIXED from initial mapping allocation; add tests
Reviewed-by: stefank, coleenp

8077674: BSD build failures due to undefined macros
Reviewed-by: dsamersoff, kbarrett, hseigel

8074354: Make CreateMinidumpOnCrash a new name and available on all platforms
Summary: Rename CreateMinidumpOnCrash which is used only for Windows as CreateCoredumpOnCrash and make it available for all platforms. Changed order for dumping core on Windows to be similar on other platforms. Also reviewed by thomas.stuefe@gmail.com
Reviewed-by: dcubed
Contributed-by: yumin.qi@oracle.com, thomas.stuefe@gmail.com

6983747: Remove obsolete dl_mutex lock
Summary: Unused dl_mutex lock has been removed.
Reviewed-by: hseigel, coleenp, dholmes

8074895: os::getenv is inadequate
Reviewed-by: dholmes, coleenp

8073315: Enable gcc -Wtype-limits and fix upcoming issues.
Summary: Relevant fixes in blockOffsetTable.cpp, os_linux.cpp, parCardTableModRefBS.cpp.
Reviewed-by: jwilhelm, kbarrett, simonis

8074552: SafeFetch32 and SafeFetchN do not work in error handling
Reviewed-by: dholmes, goetz
Contributed-by: Thomas Stufe <thomas.stuefe@gmail.com>

8072383: resolve conflicts between open and closed ports
Summary: refactor close to remove references to closed ports
Reviewed-by: kvn, simonis, dholmes

Merge

Merge

Merge

8064611: AARCH64: Changes to HotSpot shared code
Summary: Everything except cpu/ and os_cpu/
Reviewed-by: dholmes, goetz, dlong, coleenp, kvn