==============================================================================
XWT README
-
+
______________________________________________________________________________
Documentation
Start here. Includes a map of all other documentation and a
description of the directory strucure
-- The XWT home page [www/ or http://www.xwt.org/]
-
- A complete copy of all static and dynamic content for
- www.xwt.org is in the xwt/www/ directory.
+- The XWT home page [http://www.xwt.org/]
-- The XWT tutorial [www/html/tutorial.html_]:
+- The XWT tutorial [http://www.xwt.org/tutorial.html]
Gentle introduction to what XWT is, and how to write
.xwt's. Good for anybody who wants to write XWT applications.
-- The XWT reference [www/html/reference.html]
+- The XWT reference [http://www.xwt.org/reference.html]
Precise, technical spec of exactly how XWT works. Assumes
familiarity with XWT (ie, you've read the tutorial). This is the
authoritative source for how an XWT engine should
behave.
-- Javadoc [www/html/javadoc/package-summary.html]
-
- The org.xwt.* packages are all documented with javadoc. If
- you've just checked out or downloaded a fresh copy of the XWT
- distribution, you can generate the javadoc by typing
- "./ant www" at the root directory of the distribution. You
- should start by reading the package summary for org.xwt.Main,
- and work your way around from there.
-
-- Javasrc [www/html/javasrc/index.html]
-
- Javasrc generates a syntax-colored and hyperlinked html copy of
- the XWT source code. To generate this documentation, type "./ant www"
- from the root directory of the distribution.
-
______________________________________________________________________________
Directory Structure
/
+ AUTHORS - people involved in developing XWT
README - this file
COPYING - copyright information for all files in this distro
TM - trademark information for XWT
ant - a unix shell script to launch ant
bin/ - all binary stuff generated by ant builds
- build.xml - ANT build file
- doc/ - documentation
- www/ - a copy of all static and dynamic content on xwt.org
- etc/ - configuration files
- html/ - static content -- files ending with an underscore get
- prefix.html/suffix.html/tagline.html added to them
- launch/ - code for launch.xwt.org
- src/ - source code for servlets running on xwt.org
+ build.xml - ANT build file
+ Makefile - build file for gcc 3.3
lib/ - any third-party binary stuff needed during the build process
javago - a copy of the javago post-compilation bytecode inliner
ant.jar - the Jakarta project's ANT build tool, including Sun's XML parser
netscape.jar - minimal set of classes required for compiling against Netcape's Applet interfaces
msjvm.jar - minimal set of classes required for compiling against Microsoft's Applet interfaces
- signtool - the Netscape Object Signing tool, for signing applets
- signcode.exe - the Microsoft ActiveX Signing tool, for signing ActiveX controls
- guidgen.exe - the Microsoft GUID generator, for generating OLE clsid's
- cabarc.exe - the Microsoft CAB file generator, for creating .cab archives
javasrc.jar - javasrc, a tool for generating hyperlinked, syntax-colored html from java code
src/ - all java source files and xwt sources go here
- jazz/ - jazzlib, which XWT currently uses since libgcj's java.util.zip.* is broken
-
org/
bouncycastle/ - the BouncyCastle Crypto Library
- gimp/tigert/ - some icons used in XWT Mail, by Tigert Labs
mozilla/ - a copy of Rhino, the Mozilla JavaScript interpreter
-
- xwt/ - the source code for the XWT engine
- demo/ - the XWT widget sampler
- chess/ - XWT Chess
- fonts/ - some XWF fonts
- mail/ - XWT Mail
- plat/ - platform abstraction classes for XWT
- tasks/ - source code for some ANT tasks used in the XWT build process
- themes/ - some XWT themes
- util/ - some helper classes
-
- xwt/standard/ - the XWT standard library
-
-
+ xwt/builtin/ - .xwt's and .png's that are essential to bootstrapping the engine
+ xwt/plat/ - platform-specific code
______________________________________________________________________________
Build Targets
-To build, make sure your $JAVA_HOME points to jdk1.2 or later, and type
+ *** XWT now requires JDK 1.4 or later to build ***
+
+To build, make sure your $JAVA_HOME points to jdk1.4 or later, and type
./ant -Dplat=<platform> <targetname>
list as of 20-Mar-2002:
Win32 - Windows 95 / NT4 or later
- Java2 - Any Java 1.2+ compliant JVM
+ Java12 - Any Java 1.2+ compliant JVM
Valid <target>s are:
build - builds a binary for the selected platform
- dist - creates deployment materials for the selected platform in dist/
- run - runs the binary for the selected platform
The following targets do not require that you specify a platform:
compile - compiles all .java's to .class'es
clean - empties bin/ and compiled binaries in dist/
- www - rebuild www/html/
- push - push changes to the web server via ssh (RSA auth)
+______________________________________________________________________________
+Building
+
+- WARNING: Jikes 1.16 has a bug which will cause it to generate
+ corrupt .class files; you must downgrade to 1.15 in order to compile
+ XWT.
+- If you only want to build the JVM version of XWT, delete these three
+ files:
-______________________________________________________________________________
-Building a compiler
+ xwt/src/org/xwt/plat/Win32.java
+ xwt/src/org/xwt/plat/POSIX.java
+ xwt/src/org/xwt/plat/GCJ.java
+
+ This will allow XWT to build correctly *without* gcc 3.1. Otherwise,
+ you must compile and install gcc 3.1.
- The Win32 native version of XWT can ONLY be built with the very
- latest pre-release of GCC 3.1. You can follow the steps below to
- create a cross-compiler from linux to Win32.
-
- If the steps below fail, try adding "-D 20-Mar-2002" to the cvs
- checkout line; 20-Mar-2002 was the last date on which the compiler
- was known to work. Please don't do this unless you have attempted
- without it, however, since it puts additional strain on the gcc cvs
- server.
-
-
- # create an install area
- export CLASSPATH=
- export PREFIX=/usr/local/gcc
- export CC=/usr/bin/gcc
-
- sudo rm -rf $PREFIX
- export PATH=$PATH:$PREFIX/bin
- sudo mkdir $PREFIX
- sudo mkdir $PREFIX/i686-pc-mingw32/
-
- wget http://prdownloads.sourceforge.net/mingw/MinGW-1.1.tar.gz
- sudo tar -C $PREFIX/i686-pc-mingw32/ -xvzf ~/mingw-gcj/MinGW-1.1.tar.gz
-
- wget ftp://ftp.gnu.org/gnu/binutils/binutils-2.11.2.tar.gz
- tar xzvf binutils-2.11.2.tar.gz
- cd binutils-2.11.2
- ./configure --target=i686-pc-mingw32 --prefix=$PREFIX
- make
- sudo make install
- cd ..
-
- cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc co -rgcc-3_1-branch gcc
- mkdir bin
- cd bin
- ../gcc/configure \
- --prefix=$PREFIX \
- --target=i686-pc-mingw32 \
- --host=i686-pc-linux-gnu \
- --enable-languages=c,c++,java \
- --disable-nls \
- --with-as=$PREFIX/i686-pc-mingw32/bin/as \
- --with-ld=$PREFIX/i686-pc-mingw32/bin/ld \
- --with-gnu-ld \
- --with-gnu-as \
- --enable-libgcj \
- --enable-gc-type=boehm \
- --disable-shared \
- --enable-threads=win32 \
- --disable-hash-synchronization \
- --disable-interpreter \
- --enable-sjlj-exceptions
-
- make
- sudo make install
+ latest pre-release of GCC 3.3. Run "make gcc-lin" to build a gcc
+ 3.3 that targets Linux; run "make gcc-win" to build a gcc 3.3 that
+ targets Win32.
+
+
+
+______________________________________________________________________________
+inet_addr patch
+
+Index: java/net/natInetAddress.cc
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/net/natInetAddress.cc,v
+retrieving revision 1.18.18.1
+diff -u -r1.18.18.1 natInetAddress.cc
+--- java/net/natInetAddress.cc 4 Mar 2002 20:02:19 -0000 1.18.18.1
++++ java/net/natInetAddress.cc 27 May 2002 22:54:40 -0000
+@@ -9,6 +9,7 @@
+ details. */
+
+ #include <config.h>
++#include <platform.h>
+
+ #ifdef WIN32
+
+Index: include/win32.h
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/include/win32.h,v
+retrieving revision 1.3.8.5
+diff -u -r1.3.8.5 win32.h
+--- include/win32.h 24 Apr 2002 01:04:45 -0000 1.3.8.5
++++ include/win32.h 27 May 2002 22:54:40 -0000
+@@ -35,4 +35,8 @@
+ ARRAY and return the exact number of values stored. */
+ extern int backtrace (void **__array, int __size);
+
++// configure cannot correctly detect inet_addr due to Win32's
++// oddball header naming scheme
++#define HAVE_INET_ADDR
++
+ #endif /* __JV_WIN32_H__ */
+
+
+
+______________________________________________________________________________
+Throwable.printStackTrace() patch
+
+Index: Class.h
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/lang/Class.h,v
+retrieving revision 1.43
+diff -u -r1.43 Class.h
+--- Class.h 21 Dec 2001 19:47:50 -0000 1.43
++++ Class.h 24 Apr 2002 03:06:14 -0000
+@@ -308,6 +308,7 @@
+ friend void _Jv_LayoutVTableMethods (jclass klass);
+ friend void _Jv_SetVTableEntries (jclass, _Jv_VTable *);
+ friend void _Jv_MakeVTable (jclass);
++ friend JArray<java::lang::reflect::Method*>* _Jv_GetAllMethods();
+
+ // Return array class corresponding to element type KLASS, creating it if
+ // necessary.
+Index: ClassLoader.java
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/lang/ClassLoader.java,v
+retrieving revision 1.16
+diff -u -r1.16 ClassLoader.java
+--- ClassLoader.java 7 Dec 2001 23:34:12 -0000 1.16
++++ ClassLoader.java 24 Apr 2002 03:06:14 -0000
+@@ -577,4 +577,8 @@
+ // Default to returning null. Derived classes implement this.
+ return null;
+ }
++
++ static native java.lang.reflect.Method[] getAllMethods();
++ static native long[] getAllMethodAddrs();
++
+ }
+Index: Throwable.java
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/lang/Throwable.java,v
+retrieving revision 1.10
+diff -u -r1.10 Throwable.java
+--- Throwable.java 24 Feb 2001 03:52:49 -0000 1.10
++++ Throwable.java 24 Apr 2002 03:06:14 -0000
+@@ -123,21 +123,64 @@
+ printStackTrace (writer);
+ }
+
++ private native static long longFromStackTraceBytes(byte[] stackTrace, int i);
++
+ public void printStackTrace (PrintWriter wr)
+ {
+- try
+- {
+- CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
+- PrintWriter writer = new PrintWriter (cPlusPlusFilter);
+- printRawStackTrace (writer);
+- writer.close ();
+- if (cPlusPlusFilter.written == 0) // The demangler has failed...
+- printRawStackTrace (wr);
++ try
++ {
++ CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
++ PrintWriter writer = new PrintWriter (cPlusPlusFilter);
++ printRawStackTrace (writer);
++ writer.close ();
++ if (cPlusPlusFilter.written > 0) return;
++ }
++ catch (Exception e1)
++ {
++ }
++
++ wr.println(toString());
++ if (stackTrace == null) {
++ wr.flush();
++ return;
+ }
+- catch (Exception e1)
+- {
+- printRawStackTrace (wr);
++
++ long[] allAddrs = ClassLoader.getAllMethodAddrs();
++ java.lang.reflect.Method[] meths = ClassLoader.getAllMethods();
++
++ // FIXME: assumes little endian
++ for(int i=0; i<stackTrace.length; i++) {
++ long addr = longFromStackTraceBytes(stackTrace, i);
++ if (addr == 0) break;
++
++ int whichMethod = -1;
++ for(int j=0; j<allAddrs.length; j++) {
++ if (allAddrs[j] <= addr &&
++ (whichMethod == -1 || allAddrs[whichMethod] < allAddrs[j])) {
++ whichMethod = j;
++ }
++ }
++
++ if (whichMethod == -1) {
++ wr.println("[" + Long.toString(addr, 16) + "] " + "??");
++ continue;
++ }
++
++ if (meths[whichMethod].getDeclaringClass().getName().equals("gnu.gcj.runtime.FirstThread") &&
++ meths[whichMethod].getName().equals("call_main"))
++ break;
++
++ wr.println(" [" + Long.toString(addr, 16) + "] " +
++ meths[whichMethod].getDeclaringClass().getName() + "." +
++ meths[whichMethod].getName() + "() " +
++ "+" + (addr - allAddrs[whichMethod])
++ );
++
++ if (java.lang.Thread.class.isAssignableFrom(meths[whichMethod].getDeclaringClass()) &&
++ meths[whichMethod].getName().equals("run"))
++ break;
+ }
++ wr.flush();
+ }
+
+ public Throwable ()
+Index: natClassLoader.cc
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/lang/natClassLoader.cc,v
+retrieving revision 1.47.8.1
+diff -u -r1.47.8.1 natClassLoader.cc
+--- natClassLoader.cc 2 Apr 2002 22:19:55 -0000 1.47.8.1
++++ natClassLoader.cc 24 Apr 2002 03:06:14 -0000
+@@ -40,6 +40,10 @@
+ #include <java/lang/StringBuffer.h>
+ #include <java/io/Serializable.h>
+ #include <java/lang/Cloneable.h>
++#include <java/lang/reflect/Method.h>
++
++#include<java/lang/reflect/Constructor.h>
++#include<gcj/method.h>
+
+ // FIXME: remove these.
+ #define CloneableClass java::lang::Cloneable::class$
+@@ -347,6 +351,50 @@
+ static jclass loaded_classes[HASH_LEN];
+
+ // This is the root of a linked list of classes
++
++JArray<java::lang::reflect::Method*>*
++java::lang::ClassLoader::getAllMethods()
++{
++ return _Jv_GetAllMethods();
++}
++
++JArray<jlong>*
++java::lang::ClassLoader::getAllMethodAddrs()
++{
++ JArray<java::lang::reflect::Method*>* arr = _Jv_GetAllMethods();
++ java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(arr);
++ JArray<jlong>* ret = JvNewLongArray(arr->length);
++ jlong* retel = (jlong*)elements(ret);
++ for(int i=0; i<arr->length; i++)
++ retel[i] = (jlong)((unsigned int)(_Jv_FromReflectedMethod (el[i])->ncode));
++ return ret;
++}
++
++JArray<java::lang::reflect::Method*>*
++_Jv_GetAllMethods()
++{
++ int numMethods = 0;
++
++ for(int i=0; i<HASH_LEN; i++)
++ for(jclass c = loaded_classes[i]; c; c = c->next)
++ numMethods += c->getDeclaredMethods()->length;
++
++ JArray<java::lang::reflect::Method*>* ret =
++ (JArray<java::lang::reflect::Method*>*)
++ JvNewObjectArray(numMethods, &java::lang::reflect::Method::class$, NULL);
++
++ java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(ret);
++
++ for(int i=0; i<HASH_LEN; i++)
++ for(jclass c = loaded_classes[i]; c; c = c->next) {
++ JArray<java::lang::reflect::Method*>* methods = c->getDeclaredMethods();
++ jint len = methods->length;
++ java::lang::reflect::Method** meths = (java::lang::reflect::Method**)elements(methods);
++ for(int j=0; j<len; j++) el[--numMethods] = meths[j];
++ }
++
++ return ret;
++}
+
+ \f
+
+Index: natThrowable.cc
+===================================================================
+RCS file: /cvs/gcc/gcc/libjava/java/lang/natThrowable.cc,v
+retrieving revision 1.11
+diff -u -r1.11 natThrowable.cc
+--- natThrowable.cc 7 Feb 2002 19:26:06 -0000 1.11
++++ natThrowable.cc 24 Apr 2002 03:06:14 -0000
+@@ -32,6 +32,7 @@
+ #include <stdio.h>
+
+ #include <unistd.h>
++#include <platform.h>
+
+ #ifdef HAVE_EXECINFO_H
+ #include <execinfo.h>
+@@ -102,3 +103,18 @@
+ #endif /* HAVE_BACKTRACE */
+ wr->flush ();
+ }
++
++// Returns the i^th call address in the stackTrace member, or 0 if i
++// is beyond the end of the trace. This has to be done in C++ because
++// the addresses in stackTrace are the same width as the platform's
++// pointers (which is unknown to Java code), and stackTrace is a
++// byte[] using the platform's endianness (which is unknown to Java
++// code).
++jlong
++java::lang::Throwable::longFromStackTraceBytes(jbyteArray stackArr, jint i)
++{
++ if (i * sizeof(void*) > stackArr->length) return 0;
++ unsigned int* stack = (unsigned int*)elements(stackArr);
++ return (jlong)stack[i];
++}
++
+
+
+
+
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