All, The latest version of MMTk source code was downloaded from http://cs.anu.edu.au/~Steve.Blackburn/private/mmtk-20060714.jar This version is virtually identical to what will be in the new JikesRVM release shortly. (See email on "Fwd: MMTk re-org…" for details).
The directory called src/org/mmtk/vm contains 19 java source files. These files are stubs which are intended to be modified to fit a specific JVM. The first pass at modifying these files is complete. The entire MMTk including modified stubs compiles to *.class files and an "MMTk.jar" file has been built. To make initial bringup simple, MMTk configuration called, "NoGC" has been hardcoded into the stubs. Basically NoGC has a normal allocator but the collector is a no op. This allows us to avoid write barrier, enumeration, etc issues for initial bringup. Also, initial bringup will be single threaded. Thus we avoid dealing with sync/deadlock/race issues initially. A simple "java main()" program was modified to create an instance of the MMTk. In other words, "VM mmtk_init = new VM();" During <clinit>, Address.plus() is executed. Since jitrino.jet does not yet have an intrinsic for this vmmagic function, DRLVM throws an exception and exits. (See previous email called, "Fwd: MMTk re-org…") Where should we put the DRLVM/MMTk porting layer? Following the precedent set by JikesRVM, the porting layer source code is in the MMTk tree under: MMTk/ext/vm/HarmonyDRLVM/org/apache/HarmonyDRLVM/mm/mmtk/*.java The porting layer is in the Java package: "package org.apache.HarmonyDRLVM.mm.mmtk;" Given the above, how about we put the porting layer java files at: …/incubator/harmony/enhanced/drlvm/trunk/org/apache/HarmonyDRLVM/mm/mmtk/*.java? Thoughts? -- Weldon Washburn Intel Middleware Products Division --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
