1 ==============================================================================
4 ______________________________________________________________________________
7 If you're new to XWT, you should read the documentation in the order
12 Start here. Includes a map of all other documentation and a
13 description of the directory strucure
15 - The XWT home page [www/ or http://www.xwt.org/]
17 A complete copy of all static and dynamic content for
18 www.xwt.org is in the xwt/www/ directory.
20 - The XWT tutorial [www/html/tutorial.html_]:
22 Gentle introduction to what XWT is, and how to write
23 .xwt's. Good for anybody who wants to write XWT applications.
25 - The XWT reference [www/html/reference.html]
27 Precise, technical spec of exactly how XWT works. Assumes
28 familiarity with XWT (ie, you've read the tutorial). This is the
29 authoritative source for how an XWT engine should
32 - Javadoc [www/html/javadoc/package-summary.html]
34 The org.xwt.* packages are all documented with javadoc. If
35 you've just checked out or downloaded a fresh copy of the XWT
36 distribution, you can generate the javadoc by typing
37 "./ant www" at the root directory of the distribution. You
38 should start by reading the package summary for org.xwt.Main,
39 and work your way around from there.
41 - Javasrc [www/html/javasrc/index.html]
43 Javasrc generates a syntax-colored and hyperlinked html copy of
44 the XWT source code. To generate this documentation, type "./ant www"
45 from the root directory of the distribution.
48 ______________________________________________________________________________
53 COPYING - copyright information for all files in this distro
54 TM - trademark information for XWT
55 ant - a unix shell script to launch ant
56 bin/ - all binary stuff generated by ant builds
57 build.xml - ANT build file
60 www/ - a copy of all static and dynamic content on xwt.org
61 etc/ - configuration files
62 html/ - static content -- files ending with an underscore get
63 prefix.html/suffix.html/tagline.html added to them
64 launch/ - code for launch.xwt.org
65 src/ - source code for servlets running on xwt.org
67 lib/ - any third-party binary stuff needed during the build process
68 javago - a copy of the javago post-compilation bytecode inliner
69 ant.jar - the Jakarta project's ANT build tool, including Sun's XML parser
70 netscape.jar - minimal set of classes required for compiling against Netcape's Applet interfaces
71 msjvm.jar - minimal set of classes required for compiling against Microsoft's Applet interfaces
72 signtool - the Netscape Object Signing tool, for signing applets
73 signcode.exe - the Microsoft ActiveX Signing tool, for signing ActiveX controls
74 guidgen.exe - the Microsoft GUID generator, for generating OLE clsid's
75 cabarc.exe - the Microsoft CAB file generator, for creating .cab archives
76 javasrc.jar - javasrc, a tool for generating hyperlinked, syntax-colored html from java code
78 src/ - all java source files and xwt sources go here
79 jazz/ - jazzlib, which XWT currently uses since libgcj's java.util.zip.* is broken
82 bouncycastle/ - the BouncyCastle Crypto Library
83 gimp/tigert/ - some icons used in XWT Mail, by Tigert Labs
84 mozilla/ - a copy of Rhino, the Mozilla JavaScript interpreter
86 xwt/ - the source code for the XWT engine
87 demo/ - the XWT widget sampler
89 fonts/ - some XWF fonts
91 plat/ - platform abstraction classes for XWT
92 tasks/ - source code for some ANT tasks used in the XWT build process
93 themes/ - some XWT themes
94 util/ - some helper classes
96 xwt/standard/ - the XWT standard library
100 ______________________________________________________________________________
103 To build, make sure your $JAVA_HOME points to jdk1.2 or later, and type
105 ./ant -Dplat=<platform> <targetname>
107 The name of any class in org.xwt.plat is a valid <platform>; here is a
108 list as of 20-Mar-2002:
110 Win32 - Windows 95 / NT4 or later
111 Java2 - Any Java 1.2+ compliant JVM
115 build - builds a binary for the selected platform
116 dist - creates deployment materials for the selected platform in dist/
117 run - runs the binary for the selected platform
119 The following targets do not require that you specify a platform:
121 compile - compiles all .java's to .class'es
122 clean - empties bin/ and compiled binaries in dist/
123 www - rebuild www/html/
124 push - push changes to the web server via ssh (RSA auth)
129 ______________________________________________________________________________
132 - If you only want to build the JVM version of XWT, delete these two
135 xwt/src/org/xwt/plat/Win32.java
136 xwt/src/org/xwt/plat/GCJ.java
138 This will allow XWT to build correctly *without* gcc 3.1. Otherwise,
139 you must compile and install gcc 3.1.
142 - The Win32 native version of XWT can ONLY be built with the very
143 latest pre-release of GCC 3.1. You can follow the steps below to
144 create a cross-compiler from linux to Win32.
146 If the steps below fail, try adding "-D 20-Mar-2002" to the cvs
147 checkout line; 20-Mar-2002 was the last date on which the compiler
148 was known to work. Please don't do this unless you have attempted
149 without it, however, since it puts additional strain on the gcc cvs
152 There's also a patch at the end of this file which can be applied to
153 the branch in order to make Throwable.printStackTrace() work.
155 # create an install area
157 export PREFIX=/usr/local/gcc
158 export CC=/usr/bin/gcc
161 export PATH=$PATH:$PREFIX/bin
163 sudo mkdir $PREFIX/i686-pc-mingw32/
165 wget http://prdownloads.sourceforge.net/mingw/MinGW-1.1.tar.gz
166 sudo tar -C $PREFIX/i686-pc-mingw32/ -xvzf ~/mingw-gcj/MinGW-1.1.tar.gz
168 wget ftp://ftp.gnu.org/gnu/binutils/binutils-2.11.2.tar.gz
169 tar xzvf binutils-2.11.2.tar.gz
171 ./configure --target=i686-pc-mingw32 --prefix=$PREFIX
176 cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc co -rgcc-3_1-branch gcc
181 --target=i686-pc-mingw32 \
182 --host=i686-pc-linux-gnu \
183 --enable-languages=c,c++,java \
185 --with-as=$PREFIX/i686-pc-mingw32/bin/as \
186 --with-ld=$PREFIX/i686-pc-mingw32/bin/ld \
190 --enable-gc-type=boehm \
192 --enable-threads=win32 \
193 --disable-hash-synchronization \
194 --disable-interpreter \
195 --enable-sjlj-exceptions
202 ______________________________________________________________________________
203 Throwable.printStackTrace() patch
206 ===================================================================
207 RCS file: /cvs/gcc/gcc/libjava/java/lang/Class.h,v
208 retrieving revision 1.43
209 diff -u -r1.43 Class.h
210 --- Class.h 21 Dec 2001 19:47:50 -0000 1.43
211 +++ Class.h 24 Apr 2002 03:06:14 -0000
213 friend void _Jv_LayoutVTableMethods (jclass klass);
214 friend void _Jv_SetVTableEntries (jclass, _Jv_VTable *);
215 friend void _Jv_MakeVTable (jclass);
216 + friend JArray<java::lang::reflect::Method*>* _Jv_GetAllMethods();
218 // Return array class corresponding to element type KLASS, creating it if
220 Index: ClassLoader.java
221 ===================================================================
222 RCS file: /cvs/gcc/gcc/libjava/java/lang/ClassLoader.java,v
223 retrieving revision 1.16
224 diff -u -r1.16 ClassLoader.java
225 --- ClassLoader.java 7 Dec 2001 23:34:12 -0000 1.16
226 +++ ClassLoader.java 24 Apr 2002 03:06:14 -0000
228 // Default to returning null. Derived classes implement this.
232 + static native java.lang.reflect.Method[] getAllMethods();
233 + static native long[] getAllMethodAddrs();
236 Index: Throwable.java
237 ===================================================================
238 RCS file: /cvs/gcc/gcc/libjava/java/lang/Throwable.java,v
239 retrieving revision 1.10
240 diff -u -r1.10 Throwable.java
241 --- Throwable.java 24 Feb 2001 03:52:49 -0000 1.10
242 +++ Throwable.java 24 Apr 2002 03:06:14 -0000
243 @@ -123,21 +123,64 @@
244 printStackTrace (writer);
247 + private native static long longFromStackTraceBytes(byte[] stackTrace, int i);
249 public void printStackTrace (PrintWriter wr)
253 - CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
254 - PrintWriter writer = new PrintWriter (cPlusPlusFilter);
255 - printRawStackTrace (writer);
257 - if (cPlusPlusFilter.written == 0) // The demangler has failed...
258 - printRawStackTrace (wr);
261 + CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
262 + PrintWriter writer = new PrintWriter (cPlusPlusFilter);
263 + printRawStackTrace (writer);
265 + if (cPlusPlusFilter.written > 0) return;
267 + catch (Exception e1)
271 + wr.println(toString());
272 + if (stackTrace == null) {
276 - catch (Exception e1)
278 - printRawStackTrace (wr);
280 + long[] allAddrs = ClassLoader.getAllMethodAddrs();
281 + java.lang.reflect.Method[] meths = ClassLoader.getAllMethods();
283 + // FIXME: assumes little endian
284 + for(int i=0; i<stackTrace.length; i++) {
285 + long addr = longFromStackTraceBytes(stackTrace, i);
286 + if (addr == 0) break;
288 + int whichMethod = -1;
289 + for(int j=0; j<allAddrs.length; j++) {
290 + if (allAddrs[j] <= addr &&
291 + (whichMethod == -1 || allAddrs[whichMethod] < allAddrs[j])) {
296 + if (whichMethod == -1) {
297 + wr.println("[" + Long.toString(addr, 16) + "] " + "??");
301 + if (meths[whichMethod].getDeclaringClass().getName().equals("gnu.gcj.runtime.FirstThread") &&
302 + meths[whichMethod].getName().equals("call_main"))
305 + wr.println(" [" + Long.toString(addr, 16) + "] " +
306 + meths[whichMethod].getDeclaringClass().getName() + "." +
307 + meths[whichMethod].getName() + "() " +
308 + "+" + (addr - allAddrs[whichMethod])
311 + if (java.lang.Thread.class.isAssignableFrom(meths[whichMethod].getDeclaringClass()) &&
312 + meths[whichMethod].getName().equals("run"))
319 Index: natClassLoader.cc
320 ===================================================================
321 RCS file: /cvs/gcc/gcc/libjava/java/lang/natClassLoader.cc,v
322 retrieving revision 1.47.8.1
323 diff -u -r1.47.8.1 natClassLoader.cc
324 --- natClassLoader.cc 2 Apr 2002 22:19:55 -0000 1.47.8.1
325 +++ natClassLoader.cc 24 Apr 2002 03:06:14 -0000
327 #include <java/lang/StringBuffer.h>
328 #include <java/io/Serializable.h>
329 #include <java/lang/Cloneable.h>
330 +#include <java/lang/reflect/Method.h>
332 +#include<java/lang/reflect/Constructor.h>
333 +#include<gcj/method.h>
335 // FIXME: remove these.
336 #define CloneableClass java::lang::Cloneable::class$
338 static jclass loaded_classes[HASH_LEN];
340 // This is the root of a linked list of classes
342 +JArray<java::lang::reflect::Method*>*
343 +java::lang::ClassLoader::getAllMethods()
345 + return _Jv_GetAllMethods();
349 +java::lang::ClassLoader::getAllMethodAddrs()
351 + JArray<java::lang::reflect::Method*>* arr = _Jv_GetAllMethods();
352 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(arr);
353 + JArray<jlong>* ret = JvNewLongArray(arr->length);
354 + jlong* retel = (jlong*)elements(ret);
355 + for(int i=0; i<arr->length; i++)
356 + retel[i] = (jlong)((unsigned int)(_Jv_FromReflectedMethod (el[i])->ncode));
360 +JArray<java::lang::reflect::Method*>*
363 + int numMethods = 0;
365 + for(int i=0; i<HASH_LEN; i++)
366 + for(jclass c = loaded_classes[i]; c; c = c->next)
367 + numMethods += c->getDeclaredMethods()->length;
369 + JArray<java::lang::reflect::Method*>* ret =
370 + (JArray<java::lang::reflect::Method*>*)
371 + JvNewObjectArray(numMethods, &java::lang::reflect::Method::class$, NULL);
373 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(ret);
375 + for(int i=0; i<HASH_LEN; i++)
376 + for(jclass c = loaded_classes[i]; c; c = c->next) {
377 + JArray<java::lang::reflect::Method*>* methods = c->getDeclaredMethods();
378 + jint len = methods->length;
379 + java::lang::reflect::Method** meths = (java::lang::reflect::Method**)elements(methods);
380 + for(int j=0; j<len; j++) el[--numMethods] = meths[j];
388 Index: natThrowable.cc
389 ===================================================================
390 RCS file: /cvs/gcc/gcc/libjava/java/lang/natThrowable.cc,v
391 retrieving revision 1.11
392 diff -u -r1.11 natThrowable.cc
393 --- natThrowable.cc 7 Feb 2002 19:26:06 -0000 1.11
394 +++ natThrowable.cc 24 Apr 2002 03:06:14 -0000
399 +#include <platform.h>
401 #ifdef HAVE_EXECINFO_H
402 #include <execinfo.h>
404 #endif /* HAVE_BACKTRACE */
408 +// Returns the i^th call address in the stackTrace member, or 0 if i
409 +// is beyond the end of the trace. This has to be done in C++ because
410 +// the addresses in stackTrace are the same width as the platform's
411 +// pointers (which is unknown to Java code), and stackTrace is a
412 +// byte[] using the platform's endianness (which is unknown to Java
415 +java::lang::Throwable::longFromStackTraceBytes(jbyteArray stackArr, jint i)
417 + if (i * sizeof(void*) > stackArr->length) return 0;
418 + unsigned int* stack = (unsigned int*)elements(stackArr);
419 + return (jlong)stack[i];