[HARMONY-1363] [drlvm] Java 1.5, 64 bit support, JVMTI improvements

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: Contributions, DRLVM
• Environment: Linux/i686, Windows/i686, Linux/x86_64, Linux/ia64
• Assignee: Geir Magnusson Jr
• Reporter: Salikh Zakirov
• Created: 31/Aug/06 14:25
• Updated: 02/May/13 02:29
• Resolved: 14/Sep/06 22:37

Description

This patch includes:

• Java 1.5 support
• Intel 64 (aka EM64T aka x86_64) support in VM and JIT
• IA-64 (aka IPF) code generator in JIT
• Improvements in JIT code
• Improvements in JVMTI support

New JIT features and improvements
---------------------------------

• Software-based edge profiling framework
• High-Level Optimizer enabled (client and server, static and recompilation
  modes, edge profile support)
• Compilation Pipeline Management Framework (PMF) - consistent configuration
  control based on system properties
• Unified Control Flow Graph (CFG) and basic algorithms for the high-level
  optimizer and the IA-32/Intel 64 Code Generator
• Unified logging system for both Jitrino.JET and Jitrino.OPT
• More comments added to interface header files
• New high-level optimizations developed:
• Escape Analysis based synchronization elimination (prototype for Windows/IA-32 only)
• Optimization for System.arraycopy calls
• Moving ldInterface out of the loop

IA-32/Intel 64 Code Generator
-----------------------------

• Graph Coloring register allocator implemented
• Optimization for loading String constants

Bugs in the JIT code fixed
--------------------------

• uncaught exception in case HLO turn on
• jitrino.dll failure during gc execution
• DRLVM crashes on Linux IA-32 with "-Xjit opt::skip=off" switch
• OPT fails with statprof before inliner
• bytecode mapping does not estimate CFG extension from inliner
• Memory leaks in Jitrino MemoryManager
• Memory leak in DrlEMFactory::createAndInitEMInstance() for emInstance
• Memory leak in RuntimeInterface::getGCRootSet() for gcSite
• mpegaudio hangs in -Xem opt mode
• Memory leak in LazyExceptionOpt::doLazyExceptionOpt() for optCandidates
• Memory leak in LazyExceptionOpt::addOptCandidates() for thrinst
• VM can not start threads which throw a lot of exceptions
• Jitrino.OPT does not call finalize() method of some exception class
• incorrect usage of Flow Graph
• incorrect usage of lazyexc opt pass
• Arithmetic helpers should be changed to directly generated code
• Jitrino.OPT crashes when null value is assigned to some field of non-existent type

Java 1.5 support
----------------

• Added complete parsing of the v49 class-files format;
• Implemented all 1.5 runtime features of kernel classes;
• Implemented Java assertions;
• Simplified and optimized reflection mechanism;
• Added ldc class_literal support to Jitrino.OPT;
• Assorted fixes in verifier, class support, kernels, etc.
• Added the unit test suite for all kernel classes.

JVMTI support
-------------

• JIT is the default execution mode when JVMTI is enabled
• Support of METHOD_ENTRY/EXIT events implemented in Jitrino.JET
• Decoding capabilities has been added to IA32/EM64T encoder
• Implemented ExceptionCatch, MethodEntry/MethodExit and field watches for JIT
• Implemented ExceptionCatch support in interpreter
• Fixed GetObjectMonitorUsge function
• Fixed DisposeEnvironment function
• Fixed checks for validity of class objects
• Fixed bug in RelinquishCapabilities function (Fixed bug in code, that resets global capabilities)
• Fixed check for JVMTI_ERROR_INVALID_THREAD_GROUP error
• Fixed JVMTI Extensions implementation
• Fixed JVMTI breakpoints on JIT not to handle anything when JVMTI is not enabled
• Fixed method entry event: frame.ip should be initialized before the callback on interpreter

Known issues
------------

• Intel 64 needs Intel 64-compatible class library to run
• IA-64 support is not complete

Issue Links

• is depended upon by: HARMONY-1427 [drlvm] ExceptionDescribe incorrectly disables suspend when calling exn_print_stack_trace
• is depended upon by: HARMONY-1258 [drlvm][kernel] Incorrect detection of privileged and reflection frames in Java_org_apache_harmony_vm_VMStack_getClasses
• is depended upon by: HARMONY-1421 [DRLVM] Thread Manager jvmti related issues fixes
• is depended upon by: HARMONY-1423 [DRLVM] Fix bug: missed exception from compilation stage.
• is depended upon by: HARMONY-1426 [drlvm] Thread manager uses wrong allocator for monitors returned by jthread_get_owned_monitors
• is depended upon by: HARMONY-1430 [DRLVM] Two bugs fixed in HLO part of Jitrino
• is depended upon by: HARMONY-1431 [DRLVM] Some bug fixed in kernel classes, kernel unit tests and VM tests build an run system
• is depended upon by: HARMONY-1432 [DRLVM] [reflection] assertion failed "Unexpected type descriptor"
• is depended upon by: HARMONY-1434 [drlvm] Misc fixes for kernel classes
• is depended upon by: HARMONY-1437 [DRLVM] Interpreter does not handle ThreadDeath exceptions raised in the safe_points
• is depended upon by: HARMONY-1450 [drlvm][classloader] Package-private final method is considered to be overridden in another package(IncompatibleClassChangeError)
• is depended upon by: HARMONY-1452 [DRLVM] jvmtiStopThread method does not check error conditions
• is depended upon by: HARMONY-1459 [drlvm] DRLVM has problems compiling with gcc 3.4.x and greater
• is depended upon by: HARMONY-1416 [DRLVM] Fixed bug in Jitrino.JET codegeneration
• is depended upon by: HARMONY-1417 [DRLVM] Fixed bugs in lazy exception optimization pass
• is depended upon by: HARMONY-1442 [drlvm] VM asserts with NULL pointer in DefineClass()
• is depended upon by: HARMONY-1422 [drlvm] Implementation function for SingleStep event and small bug fix
• is depended upon by: HARMONY-1420 [DRLVM] Initial jvmtiPopFrame implementatoin and some jvmti bug fixes.