2005-03-10 Bryce McKinlay <mckinlay@redhat.com>

	New Stack Trace infrastructure.
	* Makefile.am (libgcj0_convenience_la_SOURCES): Add stacktrace.cc.
	(gnu/gcj/runtime/StackTrace.lo): Removed.
	(ordinary_java_source_files): Remove obsolete files.
	(nat_source_files): Remove obsolete files. Add natVMThrowable.cc.
	* configure.host (fallback_backtrace_h): Set backtrace header
	for mingw and cygwin targets.
	* configure.ac: Make symlink for fallback backtrace headers.
	* Makefile.in, configure: Rebuilt.
	* defineclass.cc (_Jv_ClassReader::read_one_code_attribute):
	Read 'LineNumberTable' attribute.
	(_Jv_ClassReader::read_one_class_attribute): Read 'SourceFile'
	attribute.
	(_Jv_ClassReader::handleCodeAttribute): Initialize method line
	table fields.
	* exception.cc: Remove unused include.
	* interpret.cc (DIRECT_THREADED, insn_slot): Moved to java-interp.h.
	(SAVE_PC): New macro. Save current PC in the interpreter frame.
	(NULLCHECK, NULLARRAYCHECK): Use SAVE_PC.
	(_Jv_InterpMethod::compile): Translate bytecode PC values in the line
	table to direct threaded instruction values.
	(_Jv_StartOfInterpreter, _Jv_EndOfInterpreter): Removed.
	(_Jv_InterpMethod::run): No longer member function. All
	callers updated. Remove _Unwind calls. Call SAVE_PC whenever a call
	is made or where an instruction could throw.
	(_Jv_InterpMethod::get_source_line): New. Look up source line numbers
	in line_table.
	* prims.cc (catch_segv): Construct exception after MAKE_THROW_FRAME.
	(catch_fpe): Likewise.
	* stacktrace.cc: New file. Stack trace code now here.
	* gnu/gcj/runtime/MethodRef.java:
	* gnu/gcj/runtime/NameFinder.java: Mostly reimplemented. Now simply
	calls addr2line to look up PC addresses in a given binary or shared
	library.
	* gnu/gcj/runtime/StackTrace.java, gnu/gcj/runtime/natNameFinder.cc,
	gnu/gcj/runtime/natStackTrace.cc: Removed.
	* gnu/java/lang/MainThread.java (call_main): Add comment warning that
	this function name is specially recognised by the stack trace code
	and shouldn't be changed.
	* include/java-interp.h (DIRECT_THREADED, insn_slot): Moved here.
	(struct  _Jv_LineTableEntry, line_table, line_table_len): New.
	(_Jv_InterpMethod::run): Update declaration.
	(_Jv_StackTrace_): New friend. NameFinder and StackTrace no longer
	friends.
	(_Jv_InterpFrame): Renamed from _Jv_MethodChain. Add PC field.
	* include/java-stack.h: New file. Declarations for stack tracing.
	* include/jvm.h (_Jv_Frame_info): Removed.
	* java/lang/Class.h: Update friend declarations.
	* java/lang/VMClassLoader.java (getSystemClassLoader): Simplify
	exception message.
	* java/lang/VMThrowable.java (fillInStackTrace): Now native.
	(getStackTrace): Now native.
	(data): New RawDataManaged field.
	* java/lang/natClass.cc: Update includes.
	(forName): Use _Jv_StackTrace::GetCallingClass for
	calling-classloader check.
	(getClassLoader): Likewise.
	* java/lang/natRuntime.cc: Update includes.
	(_load): Use _Jv_StackTrace::GetFirstNonSystemClassLoader.
	* java/lang/natVMSecurityManager.cc: Update includes.
	(getClassContext): Use _Jv_StackTrace::GetClassContext.
	* java/lang/natVMThrowable.cc: New file. Native methods for
	VMThrowable.
	* java/lang/reflect/natArray.cc: Update includes.
	(newInstance): Use _Jv_StackTrace::GetCallingClass to implement
	accessibility check.
	* java/lang/reflect/natConstructor.cc: Update includes.
	(newInstance): Use _Jv_StackTrace::GetCallingClass to implement
	accessibility check.
	* java/lang/reflect/natField.cc: Update includes.
	(getAddr): Use _Jv_StackTrace::GetCallingClass to implement
	accessibility check.
	* java/lang/reflect/natMethod.cc: Update includes.
	(invoke): Use _Jv_StackTrace::GetCallingClass to implement
	accessibility check.
	* java/util/natResourceBundle.cc: Update includes.
	(getCallingClassLoader): Use _Jv_StackTrace::GetCallingClass.
	* java/util/logging/natLogger.cc: Update includes. Use
	_Jv_StackTrace::GetCallerInfo to get call-site info.
	* sysdep/generic/backtrace.h: Fallback backtrace code. Stub
	implementation.
	* sysdep/i386/backtrace.h: New. Fallback backtrace code. i386
	implementation.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96253 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 14 insertions, 39 deletions

diff --git a/libjava/java/util/logging/natLogger.cc b/libjava/java/util/logging/natLogger.cc
index 15d1ab70efd..e92c487c66f 100644
--- a/libjava/java/util/logging/natLogger.cc
+++ b/libjava/java/util/logging/natLogger.cc
@@ -17,7 +17,7 @@ details.  */
 
 #include <gcj/cni.h>
 #include <jvm.h>
-
+#include <java-stack.h>
 
 #include <java/lang/Object.h>
 #include <java/lang/Class.h>
@@ -25,31 +25,19 @@ details.  */
 #include <java/lang/StackTraceElement.h>
 #include <java/lang/ArrayIndexOutOfBoundsException.h>
 
+using namespace java::util::logging;
+
 java::lang::StackTraceElement* 
 java::util::logging::Logger::getCallerStackFrame ()
 {
-  gnu::gcj::runtime::StackTrace *t 
-    = new gnu::gcj::runtime::StackTrace(4);
-  java::lang::Class *klass = NULL;
-  int i = 2;
-  try
-    {
-      // skip until this class
-      while ((klass = t->classAt (i)) != getClass())
-	i++;
-      // skip the stackentries of this class
-      while ((klass = t->classAt (i)) == getClass() || klass == NULL)
-	i++;
-    }
-  catch (::java::lang::ArrayIndexOutOfBoundsException *e)
-    {
-      // FIXME: RuntimeError
-    }
+  jclass klass = NULL;
+  _Jv_Method *meth = NULL;
+  _Jv_StackTrace::GetCallerInfo (&Logger::class$, &klass, &meth);
 
   java::lang::StackTraceElement *e 
     = new java::lang::StackTraceElement
     (JvNewStringUTF (""), 0, 
-     klass->getName(), t->methodAt(i), false);
+     klass->getName(), _Jv_NewStringUtf8Const (meth->name), false);
 
   return e;
 }
diff --git a/libjava/java/util/natResourceBundle.cc b/libjava/java/util/natResourceBundle.cc
index 35e90ee23d3..e8d4fb4fd43 100644
--- a/libjava/java/util/natResourceBundle.cc
+++ b/libjava/java/util/natResourceBundle.cc
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003  Free Software Foundation
+/* Copyright (C) 2002, 2003, 2005  Free Software Foundation
 
    This file is part of libgcj.
 
@@ -12,31 +12,18 @@ details.  */
 
 #include <gcj/cni.h>
 #include <jvm.h>
+#include <java-stack.h>
 #include <java/util/ResourceBundle.h>
-#include <java/lang/SecurityManager.h>
 #include <java/lang/ClassLoader.h>
 #include <java/lang/Class.h>
-#include <java/lang/ArrayIndexOutOfBoundsException.h>
-#include <gnu/gcj/runtime/StackTrace.h>
+
+using namespace java::lang;
 
 java::lang::ClassLoader *
 java::util::ResourceBundle::getCallingClassLoader ()
 {
-  gnu::gcj::runtime::StackTrace *t = new gnu::gcj::runtime::StackTrace(6);
-  try
-    {
-      /* Frame 0 is this method, frame 1 is getBundle, so starting at
-	 frame 2 we might see the user's class.  FIXME: should account
-	 for reflection, JNI, etc, here.  */
-      for (int i = 2; ; ++i)
-	{
-	  jclass klass = t->classAt(i);
-	  if (klass != NULL)
-	    return klass->getClassLoaderInternal();
-	}
-    }
-  catch (::java::lang::ArrayIndexOutOfBoundsException *e)
-    {
-    }
+  jclass caller = _Jv_StackTrace::GetCallingClass (&ResourceBundle::class$);
+  if (caller)
+    return caller->getClassLoaderInternal();
   return NULL;
 }