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 To build, make sure your $JAVA_HOME points to jdk1.2 or later, and type
90 ./ant -Dplat=<platform> <targetname>
92 If you're using jdk1.2 or jdk1.3 to compile, you should remove
93 src/org/xwt/plat/Java14.java, since it can only be compiled with
96 The name of any class in org.xwt.plat is a valid <platform>; here is a
97 list as of 20-Mar-2002:
99 Win32 - Windows 95 / NT4 or later
100 Java2 - Any Java 1.2+ compliant JVM
104 build - builds a binary for the selected platform
106 The following targets do not require that you specify a platform:
108 compile - compiles all .java's to .class'es
109 clean - empties bin/ and compiled binaries in dist/
112 ______________________________________________________________________________
115 - If you only want to build the JVM version of XWT, delete these two
118 xwt/src/org/xwt/plat/Win32.java
119 xwt/src/org/xwt/plat/GCJ.java
121 This will allow XWT to build correctly *without* gcc 3.1. Otherwise,
122 you must compile and install gcc 3.1.
125 - The Win32 native version of XWT can ONLY be built with the very
126 latest pre-release of GCC 3.1. You can follow the steps below to
127 create a cross-compiler from linux to Win32.
129 If the steps below fail, try adding "-D 20-Mar-2002" to the cvs
130 checkout line; 20-Mar-2002 was the last date on which the compiler
131 was known to work. Please don't do this unless you have attempted
132 without it, however, since it puts additional strain on the gcc cvs
135 There are also three patches at the end of this file which can be
136 applied to the branch -- the first fixes a bug related to
137 GetFullPathName, the second disables Win32 file locking (so you can
138 view XWT's log files while it is running), and the third makes
139 Throwable.printStackTrace() work.
141 # create an install area
143 export PREFIX=/usr/local/gcc
144 export CC=/usr/bin/gcc
147 export PATH=$PATH:$PREFIX/bin
149 sudo mkdir $PREFIX/i686-pc-mingw32/
151 wget http://prdownloads.sourceforge.net/mingw/MinGW-1.1.tar.gz
152 sudo tar -C $PREFIX/i686-pc-mingw32/ -xvzf ~/mingw-gcj/MinGW-1.1.tar.gz
154 wget ftp://ftp.gnu.org/gnu/binutils/binutils-2.11.2.tar.gz
155 tar xzvf binutils-2.11.2.tar.gz
157 ./configure --target=i686-pc-mingw32 --prefix=$PREFIX
162 cvs -d :pserver:anoncvs@subversions.gnu.org:/cvsroot/gcc co -rgcc-3_1-branch gcc
167 --target=i686-pc-mingw32 \
168 --host=i686-pc-linux-gnu \
169 --enable-languages=c,c++,java \
171 --with-as=$PREFIX/i686-pc-mingw32/bin/as \
172 --with-ld=$PREFIX/i686-pc-mingw32/bin/ld \
176 --enable-gc-type=boehm \
178 --enable-threads=win32 \
179 --disable-hash-synchronization \
180 --disable-interpreter \
181 --enable-sjlj-exceptions
186 - The Linux native version is still experimental. You should configure
191 --enable-languages=c,c++,java \
194 --enable-threads=posix \
195 --enable-hash-synchronization \
197 --disable-interpreter
200 ______________________________________________________________________________
201 GetFullPathName patch
203 Index: natFileWin32.cc
204 ===================================================================
205 RCS file: /cvs/gcc/gcc/libjava/java/io/natFileWin32.cc,v
206 retrieving revision 1.9.2.1
207 diff -u -r1.9.2.1 natFileWin32.cc
208 --- natFileWin32.cc 16 Apr 2002 15:35:20 -0000 1.9.2.1
209 +++ natFileWin32.cc 14 May 2002 01:57:39 -0000
213 if(!GetFullPathName(buf, MAX_PATH, buf2, &unused))
214 - throw new IOException (JvNewStringLatin1 ("GetFullPathName failed"));
217 // FIXME: what encoding to assume for file names? This affects many
221 ______________________________________________________________________________
224 Index: java/io/natFileDescriptorWin32.cc
225 ===================================================================
226 RCS file: /cvs/gcc/gcc/libjava/java/io/natFileDescriptorWin32.cc,v
227 retrieving revision 1.5.2.2
228 diff -u -r1.5.2.2 natFileDescriptorWin32.cc
229 --- java/io/natFileDescriptorWin32.cc 10 Mar 2002 03:34:59 -0000 1.5.2.2
230 +++ java/io/natFileDescriptorWin32.cc 27 Apr 2002 08:40:40 -0000
232 create = CREATE_ALWAYS;
235 - handle = CreateFile(buf, access, share, NULL, create, 0, NULL);
236 + handle = CreateFile(buf, access, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, create, 0, NULL);
238 if (handle == INVALID_HANDLE_VALUE)
243 ______________________________________________________________________________
244 Throwable.printStackTrace() patch
247 ===================================================================
248 RCS file: /cvs/gcc/gcc/libjava/java/lang/Class.h,v
249 retrieving revision 1.43
250 diff -u -r1.43 Class.h
251 --- Class.h 21 Dec 2001 19:47:50 -0000 1.43
252 +++ Class.h 24 Apr 2002 03:06:14 -0000
254 friend void _Jv_LayoutVTableMethods (jclass klass);
255 friend void _Jv_SetVTableEntries (jclass, _Jv_VTable *);
256 friend void _Jv_MakeVTable (jclass);
257 + friend JArray<java::lang::reflect::Method*>* _Jv_GetAllMethods();
259 // Return array class corresponding to element type KLASS, creating it if
261 Index: ClassLoader.java
262 ===================================================================
263 RCS file: /cvs/gcc/gcc/libjava/java/lang/ClassLoader.java,v
264 retrieving revision 1.16
265 diff -u -r1.16 ClassLoader.java
266 --- ClassLoader.java 7 Dec 2001 23:34:12 -0000 1.16
267 +++ ClassLoader.java 24 Apr 2002 03:06:14 -0000
269 // Default to returning null. Derived classes implement this.
273 + static native java.lang.reflect.Method[] getAllMethods();
274 + static native long[] getAllMethodAddrs();
277 Index: Throwable.java
278 ===================================================================
279 RCS file: /cvs/gcc/gcc/libjava/java/lang/Throwable.java,v
280 retrieving revision 1.10
281 diff -u -r1.10 Throwable.java
282 --- Throwable.java 24 Feb 2001 03:52:49 -0000 1.10
283 +++ Throwable.java 24 Apr 2002 03:06:14 -0000
284 @@ -123,21 +123,64 @@
285 printStackTrace (writer);
288 + private native static long longFromStackTraceBytes(byte[] stackTrace, int i);
290 public void printStackTrace (PrintWriter wr)
294 - CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
295 - PrintWriter writer = new PrintWriter (cPlusPlusFilter);
296 - printRawStackTrace (writer);
298 - if (cPlusPlusFilter.written == 0) // The demangler has failed...
299 - printRawStackTrace (wr);
302 + CPlusPlusDemangler cPlusPlusFilter = new CPlusPlusDemangler (wr);
303 + PrintWriter writer = new PrintWriter (cPlusPlusFilter);
304 + printRawStackTrace (writer);
306 + if (cPlusPlusFilter.written > 0) return;
308 + catch (Exception e1)
312 + wr.println(toString());
313 + if (stackTrace == null) {
317 - catch (Exception e1)
319 - printRawStackTrace (wr);
321 + long[] allAddrs = ClassLoader.getAllMethodAddrs();
322 + java.lang.reflect.Method[] meths = ClassLoader.getAllMethods();
324 + // FIXME: assumes little endian
325 + for(int i=0; i<stackTrace.length; i++) {
326 + long addr = longFromStackTraceBytes(stackTrace, i);
327 + if (addr == 0) break;
329 + int whichMethod = -1;
330 + for(int j=0; j<allAddrs.length; j++) {
331 + if (allAddrs[j] <= addr &&
332 + (whichMethod == -1 || allAddrs[whichMethod] < allAddrs[j])) {
337 + if (whichMethod == -1) {
338 + wr.println("[" + Long.toString(addr, 16) + "] " + "??");
342 + if (meths[whichMethod].getDeclaringClass().getName().equals("gnu.gcj.runtime.FirstThread") &&
343 + meths[whichMethod].getName().equals("call_main"))
346 + wr.println(" [" + Long.toString(addr, 16) + "] " +
347 + meths[whichMethod].getDeclaringClass().getName() + "." +
348 + meths[whichMethod].getName() + "() " +
349 + "+" + (addr - allAddrs[whichMethod])
352 + if (java.lang.Thread.class.isAssignableFrom(meths[whichMethod].getDeclaringClass()) &&
353 + meths[whichMethod].getName().equals("run"))
360 Index: natClassLoader.cc
361 ===================================================================
362 RCS file: /cvs/gcc/gcc/libjava/java/lang/natClassLoader.cc,v
363 retrieving revision 1.47.8.1
364 diff -u -r1.47.8.1 natClassLoader.cc
365 --- natClassLoader.cc 2 Apr 2002 22:19:55 -0000 1.47.8.1
366 +++ natClassLoader.cc 24 Apr 2002 03:06:14 -0000
368 #include <java/lang/StringBuffer.h>
369 #include <java/io/Serializable.h>
370 #include <java/lang/Cloneable.h>
371 +#include <java/lang/reflect/Method.h>
373 +#include<java/lang/reflect/Constructor.h>
374 +#include<gcj/method.h>
376 // FIXME: remove these.
377 #define CloneableClass java::lang::Cloneable::class$
379 static jclass loaded_classes[HASH_LEN];
381 // This is the root of a linked list of classes
383 +JArray<java::lang::reflect::Method*>*
384 +java::lang::ClassLoader::getAllMethods()
386 + return _Jv_GetAllMethods();
390 +java::lang::ClassLoader::getAllMethodAddrs()
392 + JArray<java::lang::reflect::Method*>* arr = _Jv_GetAllMethods();
393 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(arr);
394 + JArray<jlong>* ret = JvNewLongArray(arr->length);
395 + jlong* retel = (jlong*)elements(ret);
396 + for(int i=0; i<arr->length; i++)
397 + retel[i] = (jlong)((unsigned int)(_Jv_FromReflectedMethod (el[i])->ncode));
401 +JArray<java::lang::reflect::Method*>*
404 + int numMethods = 0;
406 + for(int i=0; i<HASH_LEN; i++)
407 + for(jclass c = loaded_classes[i]; c; c = c->next)
408 + numMethods += c->getDeclaredMethods()->length;
410 + JArray<java::lang::reflect::Method*>* ret =
411 + (JArray<java::lang::reflect::Method*>*)
412 + JvNewObjectArray(numMethods, &java::lang::reflect::Method::class$, NULL);
414 + java::lang::reflect::Method** el = (java::lang::reflect::Method**)elements(ret);
416 + for(int i=0; i<HASH_LEN; i++)
417 + for(jclass c = loaded_classes[i]; c; c = c->next) {
418 + JArray<java::lang::reflect::Method*>* methods = c->getDeclaredMethods();
419 + jint len = methods->length;
420 + java::lang::reflect::Method** meths = (java::lang::reflect::Method**)elements(methods);
421 + for(int j=0; j<len; j++) el[--numMethods] = meths[j];
429 Index: natThrowable.cc
430 ===================================================================
431 RCS file: /cvs/gcc/gcc/libjava/java/lang/natThrowable.cc,v
432 retrieving revision 1.11
433 diff -u -r1.11 natThrowable.cc
434 --- natThrowable.cc 7 Feb 2002 19:26:06 -0000 1.11
435 +++ natThrowable.cc 24 Apr 2002 03:06:14 -0000
440 +#include <platform.h>
442 #ifdef HAVE_EXECINFO_H
443 #include <execinfo.h>
445 #endif /* HAVE_BACKTRACE */
449 +// Returns the i^th call address in the stackTrace member, or 0 if i
450 +// is beyond the end of the trace. This has to be done in C++ because
451 +// the addresses in stackTrace are the same width as the platform's
452 +// pointers (which is unknown to Java code), and stackTrace is a
453 +// byte[] using the platform's endianness (which is unknown to Java
456 +java::lang::Throwable::longFromStackTraceBytes(jbyteArray stackArr, jint i)
458 + if (i * sizeof(void*) > stackArr->length) return 0;
459 + unsigned int* stack = (unsigned int*)elements(stackArr);
460 + return (jlong)stack[i];