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 [http://www.xwt.org/]
17 - The XWT tutorial [http://www.xwt.org/tutorial.html]
19 Gentle introduction to what XWT is, and how to write
20 .xwt's. Good for anybody who wants to write XWT applications.
22 - The XWT reference [http://www.xwt.org/reference.html]
24 Precise, technical spec of exactly how XWT works. Assumes
25 familiarity with XWT (ie, you've read the tutorial). This is the
26 authoritative source for how an XWT engine should
29 - Javadoc [http://www.xwt.org/javadoc/]
31 The org.xwt.* packages are all documented with javadoc. You
32 should start by reading the package summary for org.xwt.Main,
33 and work your way around from there.
35 - Javasrc [http://www.xwt.org/javasrc]
37 Javasrc generates a syntax-colored and hyperlinked html copy of
41 ______________________________________________________________________________
46 COPYING - copyright information for all files in this distro
47 TM - trademark information for XWT
48 ant - a unix shell script to launch ant
49 bin/ - all binary stuff generated by ant builds
50 build.xml - ANT build file
52 lib/ - any third-party binary stuff needed during the build process
53 javago - a copy of the javago post-compilation bytecode inliner
54 ant.jar - the Jakarta project's ANT build tool, including Sun's XML parser
55 netscape.jar - minimal set of classes required for compiling against Netcape's Applet interfaces
56 msjvm.jar - minimal set of classes required for compiling against Microsoft's Applet interfaces
57 signtool - the Netscape Object Signing tool, for signing applets
58 signcode.exe - the Microsoft ActiveX Signing tool, for signing ActiveX controls
59 guidgen.exe - the Microsoft GUID generator, for generating OLE clsid's
60 cabarc.exe - the Microsoft CAB file generator, for creating .cab archives
61 javasrc.jar - javasrc, a tool for generating hyperlinked, syntax-colored html from java code
63 src/ - all java source files and xwt sources go here
64 jazz/ - jazzlib, which XWT currently uses since libgcj's java.util.zip.* is broken
67 bouncycastle/ - the BouncyCastle Crypto Library
68 gimp/tigert/ - some icons used in XWT Mail, by Tigert Labs
69 mozilla/ - a copy of Rhino, the Mozilla JavaScript interpreter
71 xwt/ - the source code for the XWT engine
72 demo/ - the XWT widget sampler
74 fonts/ - some XWF fonts
76 plat/ - platform abstraction classes for XWT
77 tasks/ - source code for some ANT tasks used in the XWT build process
78 themes/ - some XWT themes
79 util/ - some helper classes
81 xwt/standard/ - the XWT standard library
85 ______________________________________________________________________________
88 *** XWT now requires JDK 1.4 or later to build ***
90 To build, make sure your $JAVA_HOME points to jdk1.4 or later, and type
92 ./ant -Dplat=<platform> <targetname>
94 The name of any class in org.xwt.plat is a valid <platform>; here is a
95 list as of 20-Mar-2002:
97 Win32 - Windows 95 / NT4 or later
98 Java2 - Any Java 1.2+ compliant JVM
102 build - builds a binary for the selected platform
104 The following targets do not require that you specify a platform:
106 compile - compiles all .java's to .class'es
107 clean - empties bin/ and compiled binaries in dist/
110 ______________________________________________________________________________
113 - If you only want to build the JVM version of XWT, delete these three
116 xwt/src/org/xwt/plat/Win32.java
117 xwt/src/org/xwt/plat/POSIX.java
118 xwt/src/org/xwt/plat/GCJ.java
120 This will allow XWT to build correctly *without* gcc 3.1. Otherwise,
121 you must compile and install gcc 3.1.
124 - The Win32 native version of XWT can ONLY be built with the very
125 latest pre-release of GCC 3.1. You can follow the steps below to
126 create a cross-compiler from linux to Win32.
128 If the steps below fail, try adding "-D 20-Mar-2002" to the cvs
129 checkout line; 20-Mar-2002 was the last date on which the compiler
130 was known to work. Please don't do this unless you have attempted
131 without it, however, since it puts additional strain on the gcc cvs
134 There are also three patches at the end of this file which can be
135 applied to the branch -- the first fixes a bug related to
136 GetFullPathName, the second disables Win32 file locking (so you can
137 view XWT's log files while it is running), and the third makes
138 Throwable.printStackTrace() work.
140 # create an install area
142 export PREFIX=/usr/local/gcc
143 export CC=/usr/bin/gcc
146 export PATH=$PATH:$PREFIX/bin
148 sudo mkdir $PREFIX/i686-pc-mingw32/
150 wget http://telia.dl.sourceforge.net/sourceforge/mingw/MinGW-1.1.tar.gz
151 sudo tar -C $PREFIX/i686-pc-mingw32/ -xvzf MinGW-1.1.tar.gz
153 wget ftp://ftp.gnu.org/gnu/binutils/binutils-2.11.2.tar.gz
154 tar xzvf binutils-2.11.2.tar.gz
156 ./configure --target=i686-pc-mingw32 --prefix=$PREFIX
161 cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc co -rgcc-3_1-branch gcc
166 --target=i686-pc-mingw32 \
167 --host=i686-pc-linux-gnu \
168 --enable-languages=c,c++,java \
170 --with-as=$PREFIX/i686-pc-mingw32/bin/as \
171 --with-ld=$PREFIX/i686-pc-mingw32/bin/ld \
175 --enable-gc-type=boehm \
177 --enable-threads=win32 \
178 --disable-hash-synchronization \
179 --disable-interpreter \
180 --enable-sjlj-exceptions
185 - The Linux native version is still experimental. You should configure
190 --enable-languages=c,c++,java \
193 --enable-threads=posix \
194 --enable-hash-synchronization \
196 --disable-interpreter
199 ______________________________________________________________________________
200 Throwable.printStackTrace() patch
203 ===================================================================
204 RCS file: /cvs/gcc/gcc/libjava/java/lang/Class.h,v
205 retrieving revision 1.43
206 diff -u -r1.43 Class.h
207 --- Class.h 21 Dec 2001 19:47:50 -0000 1.43
208 +++ Class.h 24 Apr 2002 03:06:14 -0000
210 friend void _Jv_LayoutVTableMethods (jclass klass);
211 friend void _Jv_SetVTableEntries (jclass, _Jv_VTable *);
212 friend void _Jv_MakeVTable (jclass);
213 + friend JArray<java::lang::reflect::Method*>* _Jv_GetAllMethods();
215 // Return array class corresponding to element type KLASS, creating it if
217 Index: ClassLoader.java
218 ===================================================================
219 RCS file: /cvs/gcc/gcc/libjava/java/lang/ClassLoader.java,v
220 retrieving revision 1.16
221 diff -u -r1.16 ClassLoader.java
222 --- ClassLoader.java 7 Dec 2001 23:34:12 -0000 1.16
223 +++ ClassLoader.java 24 Apr 2002 03:06:14 -0000
225 // Default to returning null. Derived classes implement this.
229 + static native java.lang.reflect.Method[] getAllMethods();
230 + static native long[] getAllMethodAddrs();
233 Index: Throwable.java
234 ===================================================================
235 RCS file: /cvs/gcc/gcc/libjava/java/lang/Throwable.java,v
236 retrieving revision 1.10
237 diff -u -r1.10 Throwable.java
238 --- Throwable.java 24 Feb 2001 03:52:49 -0000 1.10
239 +++ Throwable.java 24 Apr 2002 03:06:14 -0000
240 @@ -123,21 +123,64 @@
241 printStackTrace (writer);
244 + private native static long longFromStackTraceBytes(byte[] stackTrace, int i);
246 public void printStackTrace (PrintWriter wr)
250 - CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
251 - PrintWriter writer = new PrintWriter (cPlusPlusFilter);
252 - printRawStackTrace (writer);
254 - if (cPlusPlusFilter.written == 0) // The demangler has failed...
255 - printRawStackTrace (wr);
258 + CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
259 + PrintWriter writer = new PrintWriter (cPlusPlusFilter);
260 + printRawStackTrace (writer);
262 + if (cPlusPlusFilter.written > 0) return;
264 + catch (Exception e1)
268 + wr.println(toString());
269 + if (stackTrace == null) {
273 - catch (Exception e1)
275 - printRawStackTrace (wr);
277 + long[] allAddrs = ClassLoader.getAllMethodAddrs();
278 + java.lang.reflect.Method[] meths = ClassLoader.getAllMethods();
280 + // FIXME: assumes little endian
281 + for(int i=0; i<stackTrace.length; i++) {
282 + long addr = longFromStackTraceBytes(stackTrace, i);
283 + if (addr == 0) break;
285 + int whichMethod = -1;
286 + for(int j=0; j<allAddrs.length; j++) {
287 + if (allAddrs[j] <= addr &&
288 + (whichMethod == -1 || allAddrs[whichMethod] < allAddrs[j])) {
293 + if (whichMethod == -1) {
294 + wr.println("[" + Long.toString(addr, 16) + "] " + "??");
298 + if (meths[whichMethod].getDeclaringClass().getName().equals("gnu.gcj.runtime.FirstThread") &&
299 + meths[whichMethod].getName().equals("call_main"))
302 + wr.println(" [" + Long.toString(addr, 16) + "] " +
303 + meths[whichMethod].getDeclaringClass().getName() + "." +
304 + meths[whichMethod].getName() + "() " +
305 + "+" + (addr - allAddrs[whichMethod])
308 + if (java.lang.Thread.class.isAssignableFrom(meths[whichMethod].getDeclaringClass()) &&
309 + meths[whichMethod].getName().equals("run"))
316 Index: natClassLoader.cc
317 ===================================================================
318 RCS file: /cvs/gcc/gcc/libjava/java/lang/natClassLoader.cc,v
319 retrieving revision 1.47.8.1
320 diff -u -r1.47.8.1 natClassLoader.cc
321 --- natClassLoader.cc 2 Apr 2002 22:19:55 -0000 1.47.8.1
322 +++ natClassLoader.cc 24 Apr 2002 03:06:14 -0000
324 #include <java/lang/StringBuffer.h>
325 #include <java/io/Serializable.h>
326 #include <java/lang/Cloneable.h>
327 +#include <java/lang/reflect/Method.h>
329 +#include<java/lang/reflect/Constructor.h>
330 +#include<gcj/method.h>
332 // FIXME: remove these.
333 #define CloneableClass java::lang::Cloneable::class$
335 static jclass loaded_classes[HASH_LEN];
337 // This is the root of a linked list of classes
339 +JArray<java::lang::reflect::Method*>*
340 +java::lang::ClassLoader::getAllMethods()
342 + return _Jv_GetAllMethods();
346 +java::lang::ClassLoader::getAllMethodAddrs()
348 + JArray<java::lang::reflect::Method*>* arr = _Jv_GetAllMethods();
349 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(arr);
350 + JArray<jlong>* ret = JvNewLongArray(arr->length);
351 + jlong* retel = (jlong*)elements(ret);
352 + for(int i=0; i<arr->length; i++)
353 + retel[i] = (jlong)((unsigned int)(_Jv_FromReflectedMethod (el[i])->ncode));
357 +JArray<java::lang::reflect::Method*>*
360 + int numMethods = 0;
362 + for(int i=0; i<HASH_LEN; i++)
363 + for(jclass c = loaded_classes[i]; c; c = c->next)
364 + numMethods += c->getDeclaredMethods()->length;
366 + JArray<java::lang::reflect::Method*>* ret =
367 + (JArray<java::lang::reflect::Method*>*)
368 + JvNewObjectArray(numMethods, &java::lang::reflect::Method::class$, NULL);
370 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(ret);
372 + for(int i=0; i<HASH_LEN; i++)
373 + for(jclass c = loaded_classes[i]; c; c = c->next) {
374 + JArray<java::lang::reflect::Method*>* methods = c->getDeclaredMethods();
375 + jint len = methods->length;
376 + java::lang::reflect::Method** meths = (java::lang::reflect::Method**)elements(methods);
377 + for(int j=0; j<len; j++) el[--numMethods] = meths[j];
385 Index: natThrowable.cc
386 ===================================================================
387 RCS file: /cvs/gcc/gcc/libjava/java/lang/natThrowable.cc,v
388 retrieving revision 1.11
389 diff -u -r1.11 natThrowable.cc
390 --- natThrowable.cc 7 Feb 2002 19:26:06 -0000 1.11
391 +++ natThrowable.cc 24 Apr 2002 03:06:14 -0000
396 +#include <platform.h>
398 #ifdef HAVE_EXECINFO_H
399 #include <execinfo.h>
401 #endif /* HAVE_BACKTRACE */
405 +// Returns the i^th call address in the stackTrace member, or 0 if i
406 +// is beyond the end of the trace. This has to be done in C++ because
407 +// the addresses in stackTrace are the same width as the platform's
408 +// pointers (which is unknown to Java code), and stackTrace is a
409 +// byte[] using the platform's endianness (which is unknown to Java
412 +java::lang::Throwable::longFromStackTraceBytes(jbyteArray stackArr, jint i)
414 + if (i * sizeof(void*) > stackArr->length) return 0;
415 + unsigned int* stack = (unsigned int*)elements(stackArr);
416 + return (jlong)stack[i];