author | mchung |
Wed, 10 Feb 2010 17:51:07 -0800 | |
changeset 4917 | c98da2209f8c |
parent 2564 | 85c3ae53ca1c |
child 5547 | f4b087cbb361 |
permissions | -rw-r--r-- |
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Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved. |
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DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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This code is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License version 2 only, as |
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published by the Free Software Foundation. |
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This code is distributed in the hope that it will be useful, but WITHOUT |
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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version 2 for more details (a copy is included in the LICENSE file that |
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accompanied this code). |
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You should have received a copy of the GNU General Public License version |
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2 along with this work; if not, write to the Free Software Foundation, |
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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CA 95054 USA or visit www.sun.com if you need additional information or |
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have any questions. |
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________________________________________________________________________ |
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'hsdis': A HotSpot plugin for disassembling dynamically generated code. |
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The files in this directory (Makefile, hsdis.[ch], hsdis-demo.c) |
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are built independently of the HotSpot JVM. |
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To use the plugin with a JVM, you need a new version that can load it. |
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If the product mode of your JVM does not accept -XX:+PrintAssembly, |
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you do not have a version that is new enough. |
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* Building |
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To build this project you a copy of GNU binutils to build against. It |
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is known to work with binutils 2.17 and binutils 2.19.1. Download a |
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copy of the software from http://directory.fsf.org/project/binutils or |
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one of it's mirrors. Builds targetting windows should use at least |
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2.19 and currently requires the use of a cross compiler. |
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The makefile looks for the sources in build/binutils or you can |
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specify it's location to the makefile using BINTUILS=path. It will |
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configure binutils and build it first and then build and link the |
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disasembly adapter. Make all will build the default target for your |
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platform. If you platform support both 32 and 64 simultaneously then |
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"make both" will build them both at once. "make all64" will |
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explicitly build the 64 bit version. By default this will build the |
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disassembler library only. If you build demo it will build a demo |
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program that attempts to exercise the library. |
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Windows |
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In theory this should be buildable on Windows but getting a working |
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GNU build environment on Windows has proven difficult. MINGW should |
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be able to do it but at the time of this writing I was unable to get |
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this working. Instead you can use the mingw cross compiler on linux |
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to produce the windows binaries. For 32-bit windows you can install |
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mingw32 using your package manager and it will be added to your path |
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automatically. For 64-bit you need to download the 64 bit mingw from |
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http://sourceforge.net/projects/mingw-w64. Grab a copy of the |
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complete toolchain and unpack it somewhere. Put the bin directory of |
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the toolchain in your path. The mingw installs contain cross compile |
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versions of gcc that are named with a prefix to indicate what they are |
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targetting and you must tell the Makefile which one to use. This |
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should either be i586-mingw32msvc or x86_64-pc-mingw32 depending on |
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which on you are targetting and there should be a version of gcc in |
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your path named i586-mingw32msvc-gcc or x86_64-pc-mingw32-gcc. Tell |
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the makefile what prefix to use to find the mingw tools by using |
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MINGW=. For example: |
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make MINGW=i586-mingw32msvc BINTUILS=build/binutils-2.19.1 |
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will build the Win32 cross compiled version of hsdis based on 2.19.1. |
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* Installing |
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Products are named like build/$OS-$LIBARCH/hsdis-$LIBARCH.so. You can |
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install them on your LD_LIBRARY_PATH, or inside of your JRE next to |
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$LIBARCH/libjvm.so. |
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Now test: |
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export LD_LIBRARY_PATH .../hsdis/build/$OS-$LIBARCH:$LD_LIBRARY_PATH |
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dargs='-XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly' |
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dargs=$dargs' -XX:PrintAssemblyOptions=hsdis-print-bytes' |
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java $dargs -Xbatch CompileCommand=print,*String.hashCode HelloWorld |
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If the product mode of the JVM does not accept -XX:+PrintAssembly, |
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you do not have a version new enough to use the hsdis plugin. |