Implement invocation interface; don't create new thread for main.
From-SVN: r42428
This commit is contained in:
parent
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22 changed files with 461 additions and 1945 deletions
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@ -1,3 +1,46 @@
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2001-05-21 Per Bothner <per@bothner.com>
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Implement invocation interface; don't create new thread for main.
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* java/lang/Thread.java (gen_name): Make native.
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(<init>(Thread,THreadGroup,Runnable,String)): New private
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constructor, used by other constructors, and _Jv_AttachCurrentThread.
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* java/lang/natThread.cc (gen_name): New implementation.
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(_Jv_AttachCurrentThread, _Jv_DetachCurrentThread): New.
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* prims.cc (main_init): Removed, replaced by _Jv_CreateJavaVM.
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(_Jv_CreateJavaVM): New runtime initialization procedure.
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(runFirst): New proecdure - mostly code from old FirstThread::run.
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(JvRunMain, _Jv_RunMain): Re-write to use new invocation code.
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* gcj/cni.h (JvCreateJavaVM, JvAttachCurrentThread,
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JvDetachCurrentThread): New inline wrappers.
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* gcj/javaprims.h (_Jv_CreateJavaVM, _Jv_AttachCurrentThread,
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_Jv_DetachCurrentThread): New declarations.
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* gnu/gcj/runtime/FirstThread.java: Gutted. Now contains only ...
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(getMain): new static method.
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* gnu/gcj/runtime/natFirstThread.cc: Removed; run method replaced
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by runFirst in prims.cc.
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(java/lang/Thread.h): Update for new invocation interface.
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* include/posix-threads.h (_Jv_ThreadRegister,
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_Jv_ThreadUnRegister): New declarations.
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* posix-threads.cc (_Jv_ThreadRegister, _Jv_ThreadUnRegister): New.
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(really_start): Use new _Jv_ThreadRegister.
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* include/no-threads.h (_Jv_ThreadInitData): No longer inline.
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(_Jv_ThreadRegister, _Jv_ThreadUnRegister): New empty inlines.
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* no-threads.cc (_Jv_ThreadInitData): Set _Jv_OnlyThread here.
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Complain of called when _Jv_OnlyThread already set.
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(_Jv_ThreadStart): Always JvFail.
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* include/win32-threads.h (_Jv_Thread_t): New thread_obj field.
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(_Jv_ThreadRegister, _Jv_ThreadUnRegister): New declarations.
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* win32-threads.cc (struct starter): Remove objet field -
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we use _Jv_Thread_t's new thread_obj field instead.
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(_Jv_ThreadInitData): Set _Jv_Thread_t's thread_obj field.
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(_Jv_ThreadRegister, _Jv_ThreadUnRegister): New.
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(really_start): Use new _Jv_ThreadRegister.
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* jni.cc (_Jv_JNI_AttachCurrentThread): Use _Jv_AttachCurrentThread.
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(_Jv_JNI_DetachCurrentThread): Use _Jv_DetachCurrentThread.
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* gnu/gcj/jni/NativeThread.java, gnu/gcj/jni/natNativeThread.cc:
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Removed - no longer needed with new invocation interface.
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* Makefile.am: Update for removed/added files.
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2001-05-21 Per Bothner <per@bothner.com>
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* Makefile.am (libgcj_la_DEPENDENCIES): Add $(nat_files).
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@ -303,12 +303,12 @@ gnu/gcj/runtime/FirstThread.h: gnu/gcj/runtime/FirstThread.class libgcj.jar
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java/lang/Thread.h: java/lang/Thread.class libgcj.jar
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$(GCJH) -classpath $(top_builddir) \
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-prepend 'class _Jv_JNIEnv;' \
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-prepend 'extern "Java" { namespace gnu { namespace gcj { namespace jni { class NativeThread; } } } };' \
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-prepend '#define _JV_NOT_OWNER 1' \
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-prepend '#define _JV_INTERRUPTED 2' \
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-friend '_Jv_JNIEnv * _Jv_GetCurrentJNIEnv ();' \
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-friend 'void _Jv_SetCurrentJNIEnv (_Jv_JNIEnv *env);' \
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-friend 'class gnu::gcj::jni::NativeThread;' \
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-friend 'java::lang::Thread* _Jv_AttachCurrentThread(jstring name, java::lang::ThreadGroup* group);' \
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-friend 'jint _Jv_DetachCurrentThread ();' \
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$(basename $<)
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java/lang/String.h: java/lang/String.class libgcj.jar
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@ -1008,7 +1008,6 @@ gnu/gcj/RawData.java \
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gnu/gcj/io/DefaultMimeTypes.java \
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gnu/gcj/io/MimeTypes.java \
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gnu/gcj/io/SimpleSHSStream.java \
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gnu/gcj/jni/NativeThread.java \
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gnu/gcj/math/MPN.java \
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gnu/gcj/protocol/file/Connection.java \
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gnu/gcj/protocol/file/Handler.java \
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@ -1308,8 +1307,6 @@ gnu/gcj/convert/natOutput_EUCJIS.cc \
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gnu/gcj/convert/natOutput_SJIS.cc \
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gnu/gcj/io/natSimpleSHSStream.cc \
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gnu/gcj/io/shs.cc \
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gnu/gcj/jni/natNativeThread.cc \
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gnu/gcj/runtime/natFirstThread.cc \
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java/io/natFile.cc \
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java/io/natFileDescriptor.cc \
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java/io/natObjectInputStream.cc \
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1601
libjava/Makefile.in
1601
libjava/Makefile.in
File diff suppressed because one or more lines are too long
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@ -73,6 +73,7 @@ CXXCPP = @CXXCPP@
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DIRLTDL = @DIRLTDL@
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DIVIDESPEC = @DIVIDESPEC@
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DLLTOOL = @DLLTOOL@
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EXCEPTIONSPEC = @EXCEPTIONSPEC@
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EXEEXT = @EXEEXT@
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GCC_UNWIND_INCLUDE = @GCC_UNWIND_INCLUDE@
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GCDEPS = @GCDEPS@
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@ -202,7 +203,7 @@ distdir: $(DISTFILES)
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@for file in $(DISTFILES); do \
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d=$(srcdir); \
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if test -d $$d/$$file; then \
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cp -pr $$d/$$file $(distdir)/$$file; \
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cp -pr $$/$$file $(distdir)/$$file; \
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else \
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test -f $(distdir)/$$file \
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|| ln $$d/$$file $(distdir)/$$file 2> /dev/null \
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@ -118,4 +118,22 @@ JvFree (void *ptr)
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{
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return _Jv_Free (ptr);
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}
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extern inline jint
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JvCreateJavaVM (void* vm_args)
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{
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return _Jv_CreateJavaVM (vm_args);
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}
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extern inline java::lang::Thread*
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JvAttachCurrentThread (jstring name, java::lang::ThreadGroup* group)
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{
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return _Jv_AttachCurrentThread (name, group);
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}
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extern inline jint
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JvDetachCurrentThread (void)
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{
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return _Jv_DetachCurrentThread ();
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}
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#endif /* __GCJ_CNI_H__ */
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@ -380,6 +380,11 @@ extern "C" jstring _Jv_NewStringLatin1(const char*, jsize)
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extern "C" jsize _Jv_GetStringUTFLength (jstring);
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extern "C" jsize _Jv_GetStringUTFRegion (jstring, jsize, jsize, char *);
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extern jint _Jv_CreateJavaVM (void* /*vm_args*/);
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extern "C" java::lang::Thread*
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_Jv_AttachCurrentThread(jstring name, java::lang::ThreadGroup* group);
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extern "C" jint _Jv_DetachCurrentThread (void);
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extern "C" void _Jv_Throw (jthrowable) __attribute__ ((__noreturn__));
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extern "C" void* _Jv_Malloc (jsize) __attribute__((__malloc__));
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extern "C" void* _Jv_Realloc (void *, jsize);
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@ -1,29 +0,0 @@
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// NativeThread.java - Wrapper for attached user threads.
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/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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package gnu.gcj.jni;
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/**
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* @author Tom Tromey <tromey@cygnus.com>
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* @date February 9, 2000
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*/
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public class NativeThread extends Thread
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{
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public NativeThread (ThreadGroup g, String name)
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{
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super (g, null, name);
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init ();
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}
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// Call this to mark the thread as finished.
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public native void finish ();
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public native void init ();
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}
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@ -1,30 +0,0 @@
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// natNativeThread.cc - Native side of attached threads.
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/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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// Written by Tom Tromey <tromey@cygnus.com>
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#include <config.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <gnu/gcj/jni/NativeThread.h>
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#include <java/lang/Thread.h>
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void
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gnu::gcj::jni::NativeThread::finish ()
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{
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finish_ ();
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}
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void
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gnu::gcj::jni::NativeThread::init ()
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{
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alive_flag = true; // alive_flag is private in java.lang.Thread
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}
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@ -19,59 +19,29 @@ import java.util.jar.*;
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// This is entirely internal to our implementation.
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final class FirstThread extends Thread
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final class FirstThread
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{
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public native void run ();
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public FirstThread (Class k, Object o)
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{
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super (null, null, "main");
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klass = k;
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klass_name = null;
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args = o;
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}
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public FirstThread (String class_name, Object o)
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{
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super (null, null, "main");
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klass = null;
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klass_name = class_name;
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args = o;
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}
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private static void die (String s)
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{
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System.err.println(s);
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System.exit(1);
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}
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public static void main (String[] args)
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public static String getMain (String name)
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{
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String mainName = null;
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try {
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JarFile j = new JarFile (args[0]);
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JarFile j = new JarFile (name);
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Attributes a = j.getManifest().getMainAttributes();
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jarMainClassName = a.getValue(Attributes.Name.MAIN_CLASS);
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mainName = a.getValue(Attributes.Name.MAIN_CLASS);
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if (jarMainClassName != null)
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{
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jarMainClassName = jarMainClassName.replace('/','.');
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return;
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}
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} catch (Exception e) {
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// empty
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}
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System.err.println ("Failed to load Main-Class manifest attribute from\n"
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+ args[0]);
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if (mainName == null)
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System.err.println ("Failed to load Main-Class manifest attribute from\n"
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+ name);
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return mainName;
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}
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// If interpreter is invoked with -jar, the main class name is recorded
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// here.
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public static String jarMainClassName;
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// Private data.
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private Class klass;
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private String klass_name;
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@ -1,147 +0,0 @@
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// natFirstThread.cc - Implementation of FirstThread native methods.
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/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <stdlib.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <jni.h>
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#include <gnu/gcj/runtime/FirstThread.h>
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#include <java/lang/Class.h>
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#include <java/lang/String.h>
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#include <java/lang/System.h>
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#include <java/lang/reflect/Modifier.h>
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#include <java/io/PrintStream.h>
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#ifdef ENABLE_JVMPI
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#include <jvmpi.h>
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#include <java/lang/ThreadGroup.h>
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#include <java/lang/UnsatisfiedLinkError.h>
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#endif
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#define DIE(Message) die (JvNewStringLatin1 (Message))
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typedef void main_func (jobject);
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#ifdef WITH_JVMPI
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extern void (*_Jv_JVMPI_Notify_THREAD_START) (JVMPI_Event *event);
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#endif
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/* This will be non-NULL if the user has preloaded a JNI library, or
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linked one into the executable. */
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extern "C"
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{
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#pragma weak JNI_OnLoad
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extern jint JNI_OnLoad (JavaVM *, void *) __attribute__((weak));
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}
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void
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gnu::gcj::runtime::FirstThread::run (void)
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{
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Utf8Const* main_signature = _Jv_makeUtf8Const ("([Ljava.lang.String;)V", 22);
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Utf8Const* main_name = _Jv_makeUtf8Const ("main", 4);
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/* Some systems let you preload shared libraries before running a
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program. Under Linux, this is done by setting the LD_PRELOAD
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environment variable. We take advatage of this here to allow for
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dynamically loading a JNI library into a fully linked executable. */
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if (JNI_OnLoad != NULL)
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{
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JavaVM *vm = _Jv_GetJavaVM ();
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if (vm == NULL)
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{
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// FIXME: what?
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return;
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}
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jint vers = JNI_OnLoad (vm, NULL);
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if (vers != JNI_VERSION_1_1 && vers != JNI_VERSION_1_2)
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{
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// FIXME: unload the library.
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throw new java::lang::UnsatisfiedLinkError (JvNewStringLatin1 ("unrecognized version from preloaded JNI_OnLoad"));
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}
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}
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if (klass == NULL)
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klass = java::lang::Class::forName (klass_name);
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if (klass != NULL)
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_Jv_InitClass (klass);
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_Jv_Method *meth = _Jv_GetMethodLocal (klass, main_name, main_signature);
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// Some checks from Java Spec section 12.1.4.
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if (meth == NULL)
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DIE ("no suitable method `main' in class");
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if (! java::lang::reflect::Modifier::isStatic(meth->accflags))
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DIE ("`main' must be static");
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if (! java::lang::reflect::Modifier::isPublic(meth->accflags))
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DIE ("`main' must be public");
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#ifdef WITH_JVMPI
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if (_Jv_JVMPI_Notify_THREAD_START)
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{
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JVMPI_Event event;
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jstring thread_name = getName ();
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jstring group_name = NULL, parent_name = NULL;
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java::lang::ThreadGroup *group = getThreadGroup ();
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if (group)
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{
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group_name = group->getName ();
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group = group->getParent ();
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if (group)
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parent_name = group->getName ();
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}
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int thread_len = thread_name ? JvGetStringUTFLength (thread_name) : 0;
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int group_len = group_name ? JvGetStringUTFLength (group_name) : 0;
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int parent_len = parent_name ? JvGetStringUTFLength (parent_name) : 0;
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char thread_chars[thread_len + 1];
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char group_chars[group_len + 1];
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char parent_chars[parent_len + 1];
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if (thread_name)
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JvGetStringUTFRegion (thread_name, 0,
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thread_name->length(), thread_chars);
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if (group_name)
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JvGetStringUTFRegion (group_name, 0,
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group_name->length(), group_chars);
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if (parent_name)
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JvGetStringUTFRegion (parent_name, 0,
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parent_name->length(), parent_chars);
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thread_chars[thread_len] = '\0';
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group_chars[group_len] = '\0';
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parent_chars[parent_len] = '\0';
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event.event_type = JVMPI_EVENT_THREAD_START;
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event.env_id = NULL;
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event.u.thread_start.thread_name = thread_chars;
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event.u.thread_start.group_name = group_chars;
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event.u.thread_start.parent_name = parent_chars;
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event.u.thread_start.thread_id = (jobjectID) this;
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event.u.thread_start.thread_env_id = _Jv_GetCurrentJNIEnv ();
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_Jv_DisableGC ();
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(*_Jv_JVMPI_Notify_THREAD_START) (&event);
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_Jv_EnableGC ();
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}
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#endif
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main_func *real_main = (main_func *) meth->ncode;
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(*real_main) (args);
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}
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@ -73,6 +73,7 @@ CXXCPP = @CXXCPP@
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DIRLTDL = @DIRLTDL@
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DIVIDESPEC = @DIVIDESPEC@
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DLLTOOL = @DLLTOOL@
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EXCEPTIONSPEC = @EXCEPTIONSPEC@
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EXEEXT = @EXEEXT@
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GCC_UNWIND_INCLUDE = @GCC_UNWIND_INCLUDE@
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GCDEPS = @GCDEPS@
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@ -102,11 +102,8 @@ _Jv_InitThreads (void)
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{
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}
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inline _Jv_Thread_t *
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_Jv_ThreadInitData (java::lang::Thread *)
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{
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return NULL;
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}
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_Jv_Thread_t *
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_Jv_ThreadInitData (java::lang::Thread *);
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inline void
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_Jv_ThreadDestroyData (_Jv_Thread_t *data)
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@ -130,6 +127,16 @@ _Jv_ThreadSetPriority (_Jv_Thread_t *, jint)
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{
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}
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inline void
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_Jv_ThreadRegister (_Jv_Thread_t *data)
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{
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}
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inline void
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_Jv_ThreadUnRegister (void)
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{
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}
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void _Jv_ThreadStart (java::lang::Thread *, _Jv_Thread_t *,
|
||||
_Jv_ThreadStartFunc *meth);
|
||||
|
||||
|
|
|
@ -194,6 +194,9 @@ _Jv_ThreadYield (void)
|
|||
#endif /* HAVE_SCHED_YIELD */
|
||||
}
|
||||
|
||||
void _Jv_ThreadRegister (_Jv_Thread_t *data);
|
||||
void _Jv_ThreadUnRegister ();
|
||||
|
||||
void _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio);
|
||||
|
||||
void _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data,
|
||||
|
|
|
@ -25,6 +25,7 @@ typedef struct
|
|||
{
|
||||
int flags; // Flags are defined in implementation.
|
||||
HANDLE handle; // Actual handle to the thread
|
||||
java::lang::Thread *thread_obj;
|
||||
} _Jv_Thread_t;
|
||||
|
||||
typedef void _Jv_ThreadStartFunc (java::lang::Thread *);
|
||||
|
@ -120,6 +121,9 @@ _Jv_ThreadYield (void)
|
|||
Sleep (0);
|
||||
}
|
||||
|
||||
void _Jv_ThreadRegister (_Jv_Thread_t *data);
|
||||
void _Jv_ThreadUnRegister ();
|
||||
|
||||
void _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio);
|
||||
void _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data,
|
||||
_Jv_ThreadStartFunc *meth);
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
// Thread.java - Thread class.
|
||||
|
||||
/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
|
||||
/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
|
||||
|
||||
This file is part of libgcj.
|
||||
|
||||
|
@ -209,18 +209,20 @@ public class Thread implements Runnable
|
|||
|
||||
private final native void initialize_native ();
|
||||
|
||||
private final synchronized static String gen_name ()
|
||||
{
|
||||
String n;
|
||||
n = "Thread-" + nextThreadNumber;
|
||||
++nextThreadNumber;
|
||||
return n;
|
||||
}
|
||||
private final native static String gen_name ();
|
||||
|
||||
public Thread (ThreadGroup g, Runnable r, String n)
|
||||
{
|
||||
Thread current = currentThread ();
|
||||
|
||||
this (currentThread (), g, r, n);
|
||||
|
||||
// The Class Libraries book says ``threadName cannot be null''. I
|
||||
// take this to mean NullPointerException.
|
||||
if (n == null)
|
||||
throw new NullPointerException ();
|
||||
}
|
||||
|
||||
private Thread (Thread current, ThreadGroup g, Runnable r, String n)
|
||||
{
|
||||
if (g == null)
|
||||
{
|
||||
// If CURRENT is null, then we are bootstrapping the first thread.
|
||||
|
@ -233,17 +235,6 @@ public class Thread implements Runnable
|
|||
else
|
||||
group = g;
|
||||
|
||||
group.checkAccess();
|
||||
|
||||
// The Class Libraries book says ``threadName cannot be null''. I
|
||||
// take this to mean NullPointerException.
|
||||
if (n == null)
|
||||
throw new NullPointerException ();
|
||||
|
||||
name = n;
|
||||
group.addThread(this);
|
||||
runnable = r;
|
||||
|
||||
data = null;
|
||||
interrupt_flag = false;
|
||||
alive_flag = false;
|
||||
|
@ -251,6 +242,8 @@ public class Thread implements Runnable
|
|||
|
||||
if (current != null)
|
||||
{
|
||||
group.checkAccess();
|
||||
|
||||
daemon_flag = current.isDaemon();
|
||||
int gmax = group.getMaxPriority();
|
||||
int pri = current.getPriority();
|
||||
|
@ -263,6 +256,10 @@ public class Thread implements Runnable
|
|||
priority = NORM_PRIORITY;
|
||||
}
|
||||
|
||||
name = n;
|
||||
group.addThread(this);
|
||||
runnable = r;
|
||||
|
||||
initialize_native ();
|
||||
}
|
||||
|
||||
|
@ -315,9 +312,6 @@ public class Thread implements Runnable
|
|||
private boolean startable_flag;
|
||||
private ClassLoader context_class_loader;
|
||||
|
||||
// Our native data.
|
||||
// Our native data - points to an instance of struct natThread.
|
||||
private Object data;
|
||||
|
||||
// Next thread number to assign.
|
||||
private static int nextThreadNumber = 0;
|
||||
}
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
// natThread.cc - Native part of Thread class.
|
||||
|
||||
/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
|
||||
/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
|
||||
|
||||
This file is part of libgcj.
|
||||
|
||||
|
@ -59,7 +59,7 @@ java::lang::Thread::initialize_native (void)
|
|||
{
|
||||
natThread *nt = (natThread *) _Jv_AllocBytes (sizeof (natThread));
|
||||
|
||||
// The native thread data is kept in a Object field, not a rawdata, so that
|
||||
// The native thread data is kept in a Object field, not a RawData, so that
|
||||
// the GC allocator can be used and a finalizer run after the thread becomes
|
||||
// unreachable. Note that this relies on the GC's ability to finalize
|
||||
// non-Java objects. FIXME?
|
||||
|
@ -322,6 +322,34 @@ java::lang::Thread::suspend (void)
|
|||
(JvNewStringLatin1 ("java::lang::Thread::suspend unimplemented"));
|
||||
}
|
||||
|
||||
static int nextThreadNumber = 0;
|
||||
|
||||
jstring
|
||||
java::lang::Thread::gen_name (void)
|
||||
{
|
||||
jint i;
|
||||
jclass sync = &java::lang::Thread::class$;
|
||||
{
|
||||
JvSynchronize dummy(sync);
|
||||
i = ++nextThreadNumber;
|
||||
}
|
||||
|
||||
// Use an array large enough for "-2147483648"; i.e. 11 chars, + "Thread-".
|
||||
jchar buffer[7+11];
|
||||
jchar *bufend = (jchar *) ((char *) buffer + sizeof(buffer));
|
||||
i = _Jv_FormatInt (bufend, i);
|
||||
jchar *ptr = bufend - i;
|
||||
// Prepend "Thread-".
|
||||
*--ptr = '-';
|
||||
*--ptr = 'd';
|
||||
*--ptr = 'a';
|
||||
*--ptr = 'e';
|
||||
*--ptr = 'r';
|
||||
*--ptr = 'h';
|
||||
*--ptr = 'T';
|
||||
return JvNewString (ptr, bufend - ptr);
|
||||
}
|
||||
|
||||
void
|
||||
java::lang::Thread::yield (void)
|
||||
{
|
||||
|
@ -344,3 +372,33 @@ _Jv_SetCurrentJNIEnv (JNIEnv *env)
|
|||
JvAssert (t != NULL);
|
||||
((natThread *) t->data)->jni_env = env;
|
||||
}
|
||||
|
||||
java::lang::Thread*
|
||||
_Jv_AttachCurrentThread(jstring name, java::lang::ThreadGroup* group)
|
||||
{
|
||||
java::lang::Thread *thread = _Jv_ThreadCurrent ();
|
||||
if (thread != NULL)
|
||||
return thread;
|
||||
if (name == NULL)
|
||||
name = java::lang::Thread::gen_name ();
|
||||
thread = new java::lang::Thread (NULL, group, NULL, name);
|
||||
thread->startable_flag = false;
|
||||
thread->alive_flag = true;
|
||||
natThread *nt = (natThread *) thread->data;
|
||||
_Jv_ThreadRegister (nt->thread);
|
||||
return thread;
|
||||
}
|
||||
|
||||
jint
|
||||
_Jv_DetachCurrentThread (void)
|
||||
{
|
||||
java::lang::Thread *t = _Jv_ThreadCurrent ();
|
||||
if (t == NULL)
|
||||
return -1;
|
||||
|
||||
_Jv_ThreadUnRegister ();
|
||||
// Release the monitors.
|
||||
t->finish_ ();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
@ -40,12 +40,13 @@ details. */
|
|||
#include <java/util/Hashtable.h>
|
||||
#include <java/lang/Integer.h>
|
||||
#include <java/lang/ThreadGroup.h>
|
||||
#include <gnu/gcj/jni/NativeThread.h>
|
||||
#include <java/lang/Thread.h>
|
||||
|
||||
#include <gcj/method.h>
|
||||
#include <gcj/field.h>
|
||||
|
||||
#include <java-interp.h>
|
||||
#include <java-threads.h>
|
||||
|
||||
// FIXME: remove these defines.
|
||||
#define ClassClass java::lang::Class::class$
|
||||
|
@ -53,7 +54,6 @@ details. */
|
|||
#define ThrowableClass java::lang::Throwable::class$
|
||||
#define MethodClass java::lang::reflect::Method::class$
|
||||
#define ThreadGroupClass java::lang::ThreadGroup::class$
|
||||
#define NativeThreadClass gnu::gcj::jni::NativeThread::class$
|
||||
|
||||
// This enum is used to select different template instantiations in
|
||||
// the invocation code.
|
||||
|
@ -1862,7 +1862,7 @@ _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
|
|||
{
|
||||
try
|
||||
{
|
||||
(void) new gnu::gcj::jni::NativeThread (group, name);
|
||||
_Jv_AttachCurrentThread (name, group);
|
||||
}
|
||||
catch (jthrowable t)
|
||||
{
|
||||
|
@ -1916,28 +1916,11 @@ _Jv_JNI_DestroyJavaVM (JavaVM *vm)
|
|||
return JNI_ERR;
|
||||
}
|
||||
|
||||
static jint
|
||||
jint
|
||||
_Jv_JNI_DetachCurrentThread (JavaVM *)
|
||||
{
|
||||
java::lang::Thread *t = _Jv_ThreadCurrent ();
|
||||
if (t == NULL)
|
||||
return JNI_EDETACHED;
|
||||
|
||||
// FIXME: we only allow threads attached via AttachCurrentThread to
|
||||
// be detached. I have no idea how we could implement detaching
|
||||
// other threads, given the requirement that we must release all the
|
||||
// monitors. That just seems evil.
|
||||
JvAssert ((&NativeThreadClass)->isInstance (t));
|
||||
|
||||
// FIXME: release the monitors. We'll take this to mean all
|
||||
// monitors acquired via the JNI interface. This means we have to
|
||||
// keep track of them.
|
||||
|
||||
gnu::gcj::jni::NativeThread *nt
|
||||
= reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
|
||||
nt->finish ();
|
||||
|
||||
return 0;
|
||||
jint code = _Jv_DetachCurrentThread ();
|
||||
return code ? JNI_EDETACHED : 0;
|
||||
}
|
||||
|
||||
static jint
|
||||
|
|
|
@ -16,14 +16,20 @@ details. */
|
|||
|
||||
java::lang::Thread *_Jv_OnlyThread = NULL;
|
||||
|
||||
void
|
||||
_Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *,
|
||||
_Jv_ThreadStartFunc *meth)
|
||||
_Jv_Thread_t *
|
||||
_Jv_ThreadInitData (java::lang::Thread * thread)
|
||||
{
|
||||
// Don't use JvAssert, since we want this to fail even when compiled
|
||||
// without assertions.
|
||||
if (_Jv_OnlyThread)
|
||||
JvFail ("only thread already running");
|
||||
_Jv_OnlyThread = thread;
|
||||
(*meth) (thread);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
_Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *,
|
||||
_Jv_ThreadStartFunc *meth)
|
||||
{
|
||||
JvFail ("Thread.start called but threads not available");
|
||||
}
|
||||
|
|
|
@ -326,6 +326,25 @@ _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio)
|
|||
}
|
||||
}
|
||||
|
||||
void
|
||||
_Jv_ThreadRegister (_Jv_Thread_t *data)
|
||||
{
|
||||
pthread_setspecific (_Jv_ThreadKey, data->thread_obj);
|
||||
pthread_setspecific (_Jv_ThreadDataKey, data);
|
||||
|
||||
// glibc 2.1.3 doesn't set the value of `thread' until after start_routine
|
||||
// is called. Since it may need to be accessed from the new thread, work
|
||||
// around the potential race here by explicitly setting it again.
|
||||
data->thread = pthread_self ();
|
||||
}
|
||||
|
||||
void
|
||||
_Jv_ThreadUnRegister ()
|
||||
{
|
||||
pthread_setspecific (_Jv_ThreadKey, NULL);
|
||||
pthread_setspecific (_Jv_ThreadDataKey, NULL);
|
||||
}
|
||||
|
||||
// This function is called when a thread is started. We don't arrange
|
||||
// to call the `run' method directly, because this function must
|
||||
// return a value.
|
||||
|
@ -334,13 +353,7 @@ really_start (void *x)
|
|||
{
|
||||
struct starter *info = (struct starter *) x;
|
||||
|
||||
pthread_setspecific (_Jv_ThreadKey, info->data->thread_obj);
|
||||
pthread_setspecific (_Jv_ThreadDataKey, info->data);
|
||||
|
||||
// glibc 2.1.3 doesn't set the value of `thread' until after start_routine
|
||||
// is called. Since it may need to be accessed from the new thread, work
|
||||
// around the potential race here by explicitly setting it again.
|
||||
info->data->thread = pthread_self ();
|
||||
_Jv_ThreadRegister (info->data);
|
||||
|
||||
info->method (info->data->thread_obj);
|
||||
|
||||
|
|
240
libjava/prims.cc
240
libjava/prims.cc
|
@ -36,6 +36,7 @@ details. */
|
|||
|
||||
#ifdef ENABLE_JVMPI
|
||||
#include <jvmpi.h>
|
||||
#include <java/lang/ThreadGroup.h>
|
||||
#endif
|
||||
|
||||
#ifndef DISABLE_GETENV_PROPERTIES
|
||||
|
@ -62,6 +63,7 @@ details. */
|
|||
#include <java/lang/System.h>
|
||||
#include <java/lang/reflect/Modifier.h>
|
||||
#include <java/io/PrintStream.h>
|
||||
#include <java/lang/UnsatisfiedLinkError.h>
|
||||
|
||||
#ifdef USE_LTDL
|
||||
#include <ltdl.h>
|
||||
|
@ -74,8 +76,10 @@ static java::lang::OutOfMemoryError *no_memory;
|
|||
// Largest representable size_t.
|
||||
#define SIZE_T_MAX ((size_t) (~ (size_t) 0))
|
||||
|
||||
static const char *no_properties[] = { NULL };
|
||||
|
||||
// Properties set at compile time.
|
||||
const char **_Jv_Compiler_Properties;
|
||||
const char **_Jv_Compiler_Properties = no_properties;
|
||||
|
||||
// The JAR file to add to the beginning of java.class.path.
|
||||
const char *_Jv_Jar_Class_Path;
|
||||
|
@ -92,6 +96,8 @@ static char * _Jv_execName;
|
|||
const char **_Jv_argv;
|
||||
int _Jv_argc;
|
||||
|
||||
typedef void main_func (jobject);
|
||||
|
||||
#ifdef ENABLE_JVMPI
|
||||
// Pointer to JVMPI notification functions.
|
||||
void (*_Jv_JVMPI_Notify_OBJECT_ALLOC) (JVMPI_Event *event);
|
||||
|
@ -640,51 +646,15 @@ win32_exception_handler (LPEXCEPTION_POINTERS e)
|
|||
|
||||
#endif
|
||||
|
||||
static void
|
||||
main_init ()
|
||||
/* This will be non-NULL if the user has preloaded a JNI library, or
|
||||
linked one into the executable. */
|
||||
extern "C"
|
||||
{
|
||||
// Turn stack trace generation off while creating exception objects.
|
||||
_Jv_InitClass (&java::lang::Throwable::class$);
|
||||
java::lang::Throwable::trace_enabled = 0;
|
||||
|
||||
INIT_SEGV;
|
||||
#ifdef HANDLE_FPE
|
||||
INIT_FPE;
|
||||
#else
|
||||
arithexception = new java::lang::ArithmeticException
|
||||
(JvNewStringLatin1 ("/ by zero"));
|
||||
#endif
|
||||
|
||||
no_memory = new java::lang::OutOfMemoryError;
|
||||
|
||||
java::lang::Throwable::trace_enabled = 1;
|
||||
|
||||
#ifdef USE_LTDL
|
||||
LTDL_SET_PRELOADED_SYMBOLS ();
|
||||
#endif
|
||||
|
||||
#ifdef USE_WINSOCK
|
||||
// Initialise winsock for networking
|
||||
WSADATA data;
|
||||
if (WSAStartup (MAKEWORD (1, 1), &data))
|
||||
MessageBox (NULL, "Error initialising winsock library.", "Error", MB_OK | MB_ICONEXCLAMATION);
|
||||
#endif /* USE_WINSOCK */
|
||||
|
||||
#ifdef USE_WIN32_SIGNALLING
|
||||
// Install exception handler
|
||||
SetUnhandledExceptionFilter (win32_exception_handler);
|
||||
#else
|
||||
// We only want this on POSIX systems.
|
||||
struct sigaction act;
|
||||
act.sa_handler = SIG_IGN;
|
||||
sigemptyset (&act.sa_mask);
|
||||
act.sa_flags = 0;
|
||||
sigaction (SIGPIPE, &act, NULL);
|
||||
#endif /* USE_WIN32_SIGNALLING */
|
||||
|
||||
_Jv_JNI_Init ();
|
||||
#pragma weak JNI_OnLoad
|
||||
extern jint JNI_OnLoad (JavaVM *, void *) __attribute__((weak));
|
||||
}
|
||||
|
||||
|
||||
#ifndef DISABLE_GETENV_PROPERTIES
|
||||
|
||||
static char *
|
||||
|
@ -828,15 +798,162 @@ process_gcj_properties ()
|
|||
}
|
||||
#endif // DISABLE_GETENV_PROPERTIES
|
||||
|
||||
void
|
||||
JvRunMain (jclass klass, int argc, const char **argv)
|
||||
jint
|
||||
_Jv_CreateJavaVM (void* /*vm_args*/)
|
||||
{
|
||||
PROCESS_GCJ_PROPERTIES;
|
||||
|
||||
// Turn stack trace generation off while creating exception objects.
|
||||
_Jv_InitClass (&java::lang::Throwable::class$);
|
||||
java::lang::Throwable::trace_enabled = 0;
|
||||
|
||||
INIT_SEGV;
|
||||
#ifdef HANDLE_FPE
|
||||
INIT_FPE;
|
||||
#else
|
||||
arithexception = new java::lang::ArithmeticException
|
||||
(JvNewStringLatin1 ("/ by zero"));
|
||||
#endif
|
||||
|
||||
no_memory = new java::lang::OutOfMemoryError;
|
||||
|
||||
java::lang::Throwable::trace_enabled = 1;
|
||||
|
||||
#ifdef USE_LTDL
|
||||
LTDL_SET_PRELOADED_SYMBOLS ();
|
||||
#endif
|
||||
|
||||
#ifdef USE_WINSOCK
|
||||
// Initialise winsock for networking
|
||||
WSADATA data;
|
||||
if (WSAStartup (MAKEWORD (1, 1), &data))
|
||||
MessageBox (NULL, "Error initialising winsock library.", "Error", MB_OK | MB_ICONEXCLAMATION);
|
||||
#endif /* USE_WINSOCK */
|
||||
|
||||
#ifdef USE_WIN32_SIGNALLING
|
||||
// Install exception handler
|
||||
SetUnhandledExceptionFilter (win32_exception_handler);
|
||||
#else
|
||||
// We only want this on POSIX systems.
|
||||
struct sigaction act;
|
||||
act.sa_handler = SIG_IGN;
|
||||
sigemptyset (&act.sa_mask);
|
||||
act.sa_flags = 0;
|
||||
sigaction (SIGPIPE, &act, NULL);
|
||||
#endif /* USE_WIN32_SIGNALLING */
|
||||
|
||||
_Jv_JNI_Init ();
|
||||
|
||||
/* Some systems let you preload shared libraries before running a
|
||||
program. Under Linux, this is done by setting the LD_PRELOAD
|
||||
environment variable. We take advatage of this here to allow for
|
||||
dynamically loading a JNI library into a fully linked executable. */
|
||||
|
||||
if (JNI_OnLoad != NULL)
|
||||
{
|
||||
JavaVM *vm = _Jv_GetJavaVM ();
|
||||
if (vm == NULL)
|
||||
{
|
||||
// FIXME: what?
|
||||
return -1;
|
||||
}
|
||||
jint vers = JNI_OnLoad (vm, NULL);
|
||||
if (vers != JNI_VERSION_1_1 && vers != JNI_VERSION_1_2)
|
||||
{
|
||||
// FIXME: unload the library.
|
||||
_Jv_Throw (new java::lang::UnsatisfiedLinkError (JvNewStringLatin1 ("unrecognized version from preloaded JNI_OnLoad")));
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
runFirst (::java::lang::Class *klass, ::java::lang::Object *args)
|
||||
{
|
||||
Utf8Const* main_signature = _Jv_makeUtf8Const ("([Ljava.lang.String;)V", 22);
|
||||
Utf8Const* main_name = _Jv_makeUtf8Const ("main", 4);
|
||||
|
||||
_Jv_Method *meth = _Jv_GetMethodLocal (klass, main_name, main_signature);
|
||||
|
||||
// Some checks from Java Spec section 12.1.4.
|
||||
const char *msg = NULL;
|
||||
if (meth == NULL)
|
||||
msg = "no suitable method `main' in class";
|
||||
else if (! java::lang::reflect::Modifier::isStatic(meth->accflags))
|
||||
msg = "`main' must be static";
|
||||
else if (! java::lang::reflect::Modifier::isPublic(meth->accflags))
|
||||
msg = "`main' must be public";
|
||||
if (msg != NULL)
|
||||
{
|
||||
fprintf (stderr, "%s\n", msg);
|
||||
::exit(1);
|
||||
}
|
||||
|
||||
#ifdef WITH_JVMPI
|
||||
if (_Jv_JVMPI_Notify_THREAD_START)
|
||||
{
|
||||
JVMPI_Event event;
|
||||
|
||||
jstring thread_name = getName ();
|
||||
jstring group_name = NULL, parent_name = NULL;
|
||||
java::lang::ThreadGroup *group = getThreadGroup ();
|
||||
|
||||
if (group)
|
||||
{
|
||||
group_name = group->getName ();
|
||||
group = group->getParent ();
|
||||
|
||||
if (group)
|
||||
parent_name = group->getName ();
|
||||
}
|
||||
|
||||
int thread_len = thread_name ? JvGetStringUTFLength (thread_name) : 0;
|
||||
int group_len = group_name ? JvGetStringUTFLength (group_name) : 0;
|
||||
int parent_len = parent_name ? JvGetStringUTFLength (parent_name) : 0;
|
||||
|
||||
char thread_chars[thread_len + 1];
|
||||
char group_chars[group_len + 1];
|
||||
char parent_chars[parent_len + 1];
|
||||
|
||||
if (thread_name)
|
||||
JvGetStringUTFRegion (thread_name, 0,
|
||||
thread_name->length(), thread_chars);
|
||||
if (group_name)
|
||||
JvGetStringUTFRegion (group_name, 0,
|
||||
group_name->length(), group_chars);
|
||||
if (parent_name)
|
||||
JvGetStringUTFRegion (parent_name, 0,
|
||||
parent_name->length(), parent_chars);
|
||||
|
||||
thread_chars[thread_len] = '\0';
|
||||
group_chars[group_len] = '\0';
|
||||
parent_chars[parent_len] = '\0';
|
||||
|
||||
event.event_type = JVMPI_EVENT_THREAD_START;
|
||||
event.env_id = NULL;
|
||||
event.u.thread_start.thread_name = thread_chars;
|
||||
event.u.thread_start.group_name = group_chars;
|
||||
event.u.thread_start.parent_name = parent_chars;
|
||||
event.u.thread_start.thread_id = (jobjectID) this;
|
||||
event.u.thread_start.thread_env_id = _Jv_GetCurrentJNIEnv ();
|
||||
|
||||
_Jv_DisableGC ();
|
||||
(*_Jv_JVMPI_Notify_THREAD_START) (&event);
|
||||
_Jv_EnableGC ();
|
||||
}
|
||||
#endif
|
||||
|
||||
main_func *real_main = (main_func *) meth->ncode;
|
||||
(*real_main) (args);
|
||||
}
|
||||
|
||||
void
|
||||
JvRunMain (jclass klass, int argc, const char **argv)
|
||||
{
|
||||
_Jv_argv = argv;
|
||||
_Jv_argc = argc;
|
||||
|
||||
main_init ();
|
||||
_Jv_CreateJavaVM (NULL);
|
||||
#ifdef HAVE_PROC_SELF_EXE
|
||||
char exec_name[20];
|
||||
sprintf (exec_name, "/proc/%d/exe", getpid ());
|
||||
|
@ -845,10 +962,9 @@ JvRunMain (jclass klass, int argc, const char **argv)
|
|||
_Jv_ThisExecutable (argv[0]);
|
||||
#endif
|
||||
|
||||
main_thread = _Jv_AttachCurrentThread (JvNewStringLatin1 ("main"), NULL);
|
||||
arg_vec = JvConvertArgv (argc - 1, argv + 1);
|
||||
main_thread = new gnu::gcj::runtime::FirstThread (klass, arg_vec);
|
||||
|
||||
main_thread->start();
|
||||
runFirst (klass, arg_vec);
|
||||
_Jv_ThreadWait ();
|
||||
|
||||
int status = (int) java::lang::ThreadGroup::had_uncaught_exception;
|
||||
|
@ -860,9 +976,8 @@ void
|
|||
_Jv_RunMain (const char *name, int argc, const char **argv, bool is_jar)
|
||||
{
|
||||
jstring class_name;
|
||||
PROCESS_GCJ_PROPERTIES;
|
||||
|
||||
main_init ();
|
||||
_Jv_CreateJavaVM (NULL);
|
||||
|
||||
#ifdef HAVE_PROC_SELF_EXE
|
||||
char exec_name[20];
|
||||
|
@ -870,23 +985,17 @@ _Jv_RunMain (const char *name, int argc, const char **argv, bool is_jar)
|
|||
_Jv_ThisExecutable (exec_name);
|
||||
#endif
|
||||
|
||||
main_thread = _Jv_AttachCurrentThread (JvNewStringLatin1 ("main"), NULL);
|
||||
|
||||
if (is_jar)
|
||||
{
|
||||
// name specifies a jar file. We must now extract the
|
||||
// Main-Class attribute from the jar's manifest file. This is
|
||||
// done by gnu.gcj.runtime.FirstThread.main.
|
||||
// Main-Class attribute from the jar's manifest file.
|
||||
// This is done by gnu.gcj.runtime.FirstThread.getMain.
|
||||
_Jv_Jar_Class_Path = strdup (name);
|
||||
arg_vec = JvConvertArgv (1, &_Jv_Jar_Class_Path);
|
||||
|
||||
main_thread =
|
||||
new gnu::gcj::runtime::FirstThread (&gnu::gcj::runtime::FirstThread::class$,
|
||||
arg_vec);
|
||||
main_thread->start();
|
||||
_Jv_ThreadWait ();
|
||||
|
||||
// FirstThread.main extracts the main class name and stores it
|
||||
// here.
|
||||
class_name = gnu::gcj::runtime::FirstThread::jarMainClassName;
|
||||
jstring jar_name = JvNewStringLatin1 (name);
|
||||
// FirstThread.getMain extracts the main class name.
|
||||
class_name = gnu::gcj::runtime::FirstThread::getMain (jar_name);
|
||||
|
||||
// We need a new ClassLoader because the classpath must be the
|
||||
// jar file only. The easiest way to do this is to lose our
|
||||
|
@ -900,8 +1009,7 @@ _Jv_RunMain (const char *name, int argc, const char **argv, bool is_jar)
|
|||
|
||||
if (class_name)
|
||||
{
|
||||
main_thread = new gnu::gcj::runtime::FirstThread (class_name, arg_vec);
|
||||
main_thread->start();
|
||||
runFirst(java::lang::Class::forName (class_name), arg_vec);
|
||||
_Jv_ThreadWait ();
|
||||
}
|
||||
|
||||
|
|
|
@ -73,6 +73,7 @@ CXXCPP = @CXXCPP@
|
|||
DIRLTDL = @DIRLTDL@
|
||||
DIVIDESPEC = @DIVIDESPEC@
|
||||
DLLTOOL = @DLLTOOL@
|
||||
EXCEPTIONSPEC = @EXCEPTIONSPEC@
|
||||
EXEEXT = @EXEEXT@
|
||||
GCC_UNWIND_INCLUDE = @GCC_UNWIND_INCLUDE@
|
||||
GCDEPS = @GCDEPS@
|
||||
|
@ -122,14 +123,10 @@ libgcj_basedir = @libgcj_basedir@
|
|||
AUTOMAKE_OPTIONS = foreign dejagnu
|
||||
|
||||
# Setup the testing framework, if you have one
|
||||
EXPECT = `if [ -f $(top_builddir)/../expect/expect ] ; then \
|
||||
echo $(top_builddir)/../expect/expect ; \
|
||||
else echo expect ; fi`
|
||||
EXPECT = `if [ -f $(top_builddir)/../expect/expect ] ; then echo $(top_builddir)/../expect/expect ; else echo expect ; fi`
|
||||
|
||||
|
||||
RUNTEST = `if [ -f $(top_srcdir)/../dejagnu/runtest ] ; then \
|
||||
echo $(top_srcdir)/../dejagnu/runtest ; \
|
||||
else echo runtest; fi`
|
||||
RUNTEST = `if [ -f $(top_srcdir)/../dejagnu/runtest ] ; then echo $(top_srcdir)/../dejagnu/runtest ; else echo runtest; fi`
|
||||
|
||||
|
||||
RUNTESTFLAGS = @AM_RUNTESTFLAGS@
|
||||
|
|
|
@ -35,7 +35,6 @@ extern "C"
|
|||
struct starter
|
||||
{
|
||||
_Jv_ThreadStartFunc *method;
|
||||
java::lang::Thread *object;
|
||||
_Jv_Thread_t *data;
|
||||
};
|
||||
|
||||
|
@ -124,10 +123,11 @@ _Jv_InitThreads (void)
|
|||
}
|
||||
|
||||
_Jv_Thread_t *
|
||||
_Jv_ThreadInitData (java::lang::Thread *)
|
||||
_Jv_ThreadInitData (java::lang::Thread* obj)
|
||||
{
|
||||
_Jv_Thread_t *data = new _Jv_Thread_t;
|
||||
data->flags = 0;
|
||||
data->thread_obj = obj;
|
||||
|
||||
return data;
|
||||
}
|
||||
|
@ -176,6 +176,20 @@ _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio)
|
|||
}
|
||||
}
|
||||
|
||||
void
|
||||
_Jv_ThreadRegister (_Jv_Thread_t *data)
|
||||
{
|
||||
TlsSetValue (_Jv_ThreadKey, data->thread_obj);
|
||||
TlsSetValue (_Jv_ThreadDataKey, data);
|
||||
}
|
||||
|
||||
void
|
||||
_Jv_ThreadUnRegister ()
|
||||
{
|
||||
TlsSetValue (_Jv_ThreadKey, NULL);
|
||||
TlsSetValue (_Jv_ThreadDataKey, NULL);
|
||||
}
|
||||
|
||||
// This function is called when a thread is started. We don't arrange
|
||||
// to call the `run' method directly, because this function must
|
||||
// return a value.
|
||||
|
@ -184,9 +198,9 @@ really_start (void* x)
|
|||
{
|
||||
struct starter *info = (struct starter *) x;
|
||||
|
||||
TlsSetValue (_Jv_ThreadKey, info->object);
|
||||
TlsSetValue (_Jv_ThreadDataKey, info->data);
|
||||
info->method (info->object);
|
||||
_Jv_ThreadRegister (info->data);
|
||||
|
||||
info->method (info->data->thread_obj);
|
||||
|
||||
if (! (info->data->flags & FLAG_DAEMON))
|
||||
{
|
||||
|
@ -214,7 +228,6 @@ _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data, _Jv_ThreadStart
|
|||
// FIXME: handle marking the info object for GC.
|
||||
info = (struct starter *) _Jv_AllocBytes (sizeof (struct starter));
|
||||
info->method = meth;
|
||||
info->object = thread;
|
||||
info->data = data;
|
||||
|
||||
if (! thread->isDaemon ())
|
||||
|
|
Loading…
Add table
Reference in a new issue