view src/share/tools/hsdis/README @ 2822:0744602f85c6
Added tag jdk7u2-b13 for changeset f17fe2f4b6aa
|date||Thu, 17 Nov 2011 22:14:01 -0800|
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Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. This code is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 only, as published by the Free Software Foundation. This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License version 2 for more details (a copy is included in the LICENSE file that accompanied this code). You should have received a copy of the GNU General Public License version 2 along with this work; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA or visit www.oracle.com if you need additional information or have any questions. ________________________________________________________________________ 'hsdis': A HotSpot plugin for disassembling dynamically generated code. The files in this directory (Makefile, hsdis.[ch], hsdis-demo.c) are built independently of the HotSpot JVM. To use the plugin with a JVM, you need a new version that can load it. If the product mode of your JVM does not accept -XX:+PrintAssembly, you do not have a version that is new enough. * Building To build this project you a copy of GNU binutils to build against. It is known to work with binutils 2.17 and binutils 2.19.1. Download a copy of the software from http://directory.fsf.org/project/binutils or one of it's mirrors. Builds targetting windows should use at least 2.19 and currently requires the use of a cross compiler. The makefile looks for the sources in build/binutils or you can specify it's location to the makefile using BINTUILS=path. It will configure binutils and build it first and then build and link the disasembly adapter. Make all will build the default target for your platform. If you platform support both 32 and 64 simultaneously then "make both" will build them both at once. "make all64" will explicitly build the 64 bit version. By default this will build the disassembler library only. If you build demo it will build a demo program that attempts to exercise the library. Windows In theory this should be buildable on Windows but getting a working GNU build environment on Windows has proven difficult. MINGW should be able to do it but at the time of this writing I was unable to get this working. Instead you can use the mingw cross compiler on linux to produce the windows binaries. For 32-bit windows you can install mingw32 using your package manager and it will be added to your path automatically. For 64-bit you need to download the 64 bit mingw from http://sourceforge.net/projects/mingw-w64. Grab a copy of the complete toolchain and unpack it somewhere. Put the bin directory of the toolchain in your path. The mingw installs contain cross compile versions of gcc that are named with a prefix to indicate what they are targetting and you must tell the Makefile which one to use. This should either be i586-mingw32msvc or x86_64-pc-mingw32 depending on which on you are targetting and there should be a version of gcc in your path named i586-mingw32msvc-gcc or x86_64-pc-mingw32-gcc. Tell the makefile what prefix to use to find the mingw tools by using MINGW=. For example: make MINGW=i586-mingw32msvc BINTUILS=build/binutils-2.19.1 will build the Win32 cross compiled version of hsdis based on 2.19.1. * Installing Products are named like build/$OS-$LIBARCH/hsdis-$LIBARCH.so. You can install them on your LD_LIBRARY_PATH, or inside of your JRE/JDK. The search path in the JVM is: 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so 3. <home>/jre/lib/<arch>/hsdis-<arch>.so 4. hsdis-<arch>.so (using LD_LIBRARY_PATH) Note that there's a bug in hotspot versions prior to hs22 that causes steps 2 and 3 to fail when used with JDK7. Now test: export LD_LIBRARY_PATH .../hsdis/build/$OS-$LIBARCH:$LD_LIBRARY_PATH dargs='-XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly' dargs=$dargs' -XX:PrintAssemblyOptions=hsdis-print-bytes' java $dargs -Xbatch CompileCommand=print,*String.hashCode HelloWorld If the product mode of the JVM does not accept -XX:+PrintAssembly, you do not have a version new enough to use the hsdis plugin.