libjava/include/java-stack.h

   1 // java-stack.h - Definitions for unwinding & inspecting the call stack.
   2
   3 /* Copyright (C) 2003  Free Software Foundation
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 #ifndef __JV_STACKTRACE_H__
  12 #define __JV_STACKTRACE_H__
  13
  14 #include <unwind.h>
  15
  16 #include <gcj/cni.h>
  17 #include <gcj/javaprims.h>
  18
  19 #include <java-interp.h>
  20
  21 #include <java/lang/Class.h>
  22 #include <java/lang/StackTraceElement.h>
  23 #include <java/lang/Throwable.h>
  24
  25 #include <gnu/gcj/runtime/NameFinder.h>
  26
  27 using namespace gnu::gcj::runtime;
  28
  29 enum _Jv_FrameType
  30 {
  31   frame_native,
  32   frame_interpreter
  33 };
  34
  35 #ifdef INTERPRETER
  36 struct _Jv_InterpFrameInfo
  37 {
  38   _Jv_InterpMethod *meth;
  39   pc_t pc;
  40 };
  41 #endif
  42
  43 union _Jv_FrameInfo
  44 {
  45 };
  46
  47 struct _Jv_StackFrame
  48 {
  49   _Jv_FrameType type;   /* Native or interpreted.  */
  50   union {
  51 #ifdef INTERPRETER
  52     _Jv_InterpFrameInfo interp;
  53 #endif
  54     void *ip;
  55   };
  56 //  _Jv_FrameInfo info;   /* Frame-type specific data.  */
  57   jclass klass;
  58   _Jv_Method *meth;
  59 };
  60
  61 class _Jv_StackTrace
  62 {
  63 private:
  64   int length;
  65   _Jv_StackFrame frames[];
  66
  67   static void UpdateNCodeMap ();
  68   static jclass ClassForIP (void *ip, void **ncode);
  69   static void FillInFrameInfo (_Jv_StackFrame *frame);
  70   static void getLineNumberForFrame(_Jv_StackFrame *frame, NameFinder *finder,
  71                              jstring *sourceFileName, jint *lineNum);
  72
  73   static _Unwind_Reason_Code UnwindTraceFn (struct _Unwind_Context *context,
  74     void *state_ptr);
  75
  76 public:
  77   static _Jv_StackTrace *GetStackTrace (void);
  78   static JArray< ::java::lang::StackTraceElement *>*
  79     GetStackTraceElements (_Jv_StackTrace *trace,
  80     java::lang::Throwable *throwable);
  81   static jclass GetCallingClass (void);
  82 };
  83
  84 #endif /* __JV_STACKTRACE_H__ */