* include/jvm.h (struct _Jv_frame_info): New structure.

	* gnu/gcj/runtime/natNameFinder.cc: Include StringBuffer.h,
	java-interp.h.
	(lookupInterp): New method.
	(getAddrAsString): Use _Jv_frame_info.
	(dladdrLookup): Likewise.
	* gnu/gcj/runtime/NameFinder.java (lookup): Try to look up
	interpreted frame.
	(lookupInterp): Declare.
	* java/lang/natVMThrowable.cc: Include Thread.h, java-interp.h.
	(fillInStackTrace): Collect information on interpreted frames.
	Use _Jv_frame_info.
	* interpret.cc: Include Thread.h.
	(run): Create and push _Jv_MethodChain object.
	(_Jv_EndOfInterpreter): New global.
	* java/lang/Thread.java (interp_frame): New field.
	* include/java-interp.h (struct _Jv_MethodChain): New structure.
	Include NameFinder.h.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@56657 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 25 insertions, 1 deletions

diff --git a/libjava/interpret.cc b/libjava/interpret.cc
index e5c40cff150..d231387dc9a 100644
--- a/libjava/interpret.cc
+++ b/libjava/interpret.cc
@@ -22,7 +22,6 @@ details.  */
 #include <jvm.h>
 #include <java-cpool.h>
 #include <java-interp.h>
-// #include <java/lang/fdlibm.h>
 #include <java/lang/System.h>
 #include <java/lang/String.h>
 #include <java/lang/Integer.h>
@@ -36,6 +35,7 @@ details.  */
 #include <java/lang/NullPointerException.h>
 #include <java/lang/ArithmeticException.h>
 #include <java/lang/IncompatibleClassChangeError.h>
+#include <java/lang/Thread.h>
 #include <java-insns.h>
 #include <java-signal.h>
 
@@ -744,11 +744,28 @@ _Jv_InterpMethod::compile (const void * const *insn_targets)
 }
 #endif /* DIRECT_THREADED */
 
+// This function exists so that the stack-tracing code can find the
+// boundaries of the interpreter.
+void
+_Jv_StartOfInterpreter (void)
+{
+}
+
 void
 _Jv_InterpMethod::run (void *retp, ffi_raw *args)
 {
   using namespace java::lang::reflect;
 
+  // FRAME_DESC registers this particular invocation as the top-most
+  // interpreter frame.  This lets the stack tracing code (for
+  // Throwable) print information about the method being interpreted
+  // rather than about the interpreter itself.  FRAME_DESC has a
+  // destructor so it cleans up automatically when the interpreter
+  // returns.
+  java::lang::Thread *thread = java::lang::Thread::currentThread();
+  _Jv_MethodChain frame_desc (this,
+			      (_Jv_MethodChain **) &thread->interp_frame);
+
   _Jv_word stack[max_stack];
   _Jv_word *sp = stack;
 
@@ -3169,6 +3186,13 @@ _Jv_InterpMethod::run (void *retp, ffi_raw *args)
     }
 }
 
+// This function exists so that the stack-tracing code can find the
+// boundaries of the interpreter.
+void
+_Jv_EndOfInterpreter (void)
+{
+}
+
 static void
 throw_internal_error (char *msg)
 {