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7044486: open jdk repos have files with incorrect copyright headers, which can end up in src bundles Reviewed-by: ohair, trims
author katleman
date Wed, 25 May 2011 13:31:51 -0700
parents c18cbe5936b8
children 04b9a2566eec
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fe189d4a44e9 7044486: open jdk repos have files with incorrect copyright headers, which can end up in src bundles
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1 Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
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2 DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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3
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4 This code is free software; you can redistribute it and/or modify it
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5 under the terms of the GNU General Public License version 2 only, as
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6 published by the Free Software Foundation.
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7
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8 This code is distributed in the hope that it will be useful, but WITHOUT
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9 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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10 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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11 version 2 for more details (a copy is included in the LICENSE file that
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12 accompanied this code).
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13
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14 You should have received a copy of the GNU General Public License version
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15 2 along with this work; if not, write to the Free Software Foundation,
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16 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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17
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18 Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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19 or visit www.oracle.com if you need additional information or have any
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20 questions.
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21
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22 ________________________________________________________________________
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23
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24 'hsdis': A HotSpot plugin for disassembling dynamically generated code.
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25
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26 The files in this directory (Makefile, hsdis.[ch], hsdis-demo.c)
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27 are built independently of the HotSpot JVM.
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28
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29 To use the plugin with a JVM, you need a new version that can load it.
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30 If the product mode of your JVM does not accept -XX:+PrintAssembly,
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31 you do not have a version that is new enough.
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32
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33 * Building
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34
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35 To build this project you a copy of GNU binutils to build against. It
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36 is known to work with binutils 2.17 and binutils 2.19.1. Download a
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37 copy of the software from http://directory.fsf.org/project/binutils or
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38 one of it's mirrors. Builds targetting windows should use at least
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39 2.19 and currently requires the use of a cross compiler.
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41 The makefile looks for the sources in build/binutils or you can
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42 specify it's location to the makefile using BINTUILS=path. It will
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43 configure binutils and build it first and then build and link the
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44 disasembly adapter. Make all will build the default target for your
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45 platform. If you platform support both 32 and 64 simultaneously then
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46 "make both" will build them both at once. "make all64" will
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47 explicitly build the 64 bit version. By default this will build the
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48 disassembler library only. If you build demo it will build a demo
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49 program that attempts to exercise the library.
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51 Windows
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53 In theory this should be buildable on Windows but getting a working
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54 GNU build environment on Windows has proven difficult. MINGW should
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55 be able to do it but at the time of this writing I was unable to get
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56 this working. Instead you can use the mingw cross compiler on linux
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57 to produce the windows binaries. For 32-bit windows you can install
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58 mingw32 using your package manager and it will be added to your path
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59 automatically. For 64-bit you need to download the 64 bit mingw from
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60 http://sourceforge.net/projects/mingw-w64. Grab a copy of the
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61 complete toolchain and unpack it somewhere. Put the bin directory of
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62 the toolchain in your path. The mingw installs contain cross compile
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63 versions of gcc that are named with a prefix to indicate what they are
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64 targetting and you must tell the Makefile which one to use. This
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65 should either be i586-mingw32msvc or x86_64-pc-mingw32 depending on
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66 which on you are targetting and there should be a version of gcc in
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67 your path named i586-mingw32msvc-gcc or x86_64-pc-mingw32-gcc. Tell
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68 the makefile what prefix to use to find the mingw tools by using
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69 MINGW=. For example:
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71 make MINGW=i586-mingw32msvc BINTUILS=build/binutils-2.19.1
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73 will build the Win32 cross compiled version of hsdis based on 2.19.1.
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75 * Installing
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77 Products are named like build/$OS-$LIBARCH/hsdis-$LIBARCH.so. You can
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78 install them on your LD_LIBRARY_PATH, or inside of your JRE next to
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79 $LIBARCH/libjvm.so.
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81 Now test:
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83 export LD_LIBRARY_PATH .../hsdis/build/$OS-$LIBARCH:$LD_LIBRARY_PATH
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84 dargs='-XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly'
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85 dargs=$dargs' -XX:PrintAssemblyOptions=hsdis-print-bytes'
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86 java $dargs -Xbatch CompileCommand=print,*String.hashCode HelloWorld
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88 If the product mode of the JVM does not accept -XX:+PrintAssembly,
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89 you do not have a version new enough to use the hsdis plugin.