1 // java-stack.h - Definitions for unwinding & inspecting the call stack.
3 /* Copyright (C) 2005 Free Software Foundation
5 This file is part of libgcj.
7 This software is copyrighted work licensed under the terms of the
8 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
11 #ifndef __JV_STACKTRACE_H__
12 #define __JV_STACKTRACE_H__
17 #include <gcj/javaprims.h>
19 #include <java-interp.h>
21 #include <java/lang/Class.h>
22 #include <java/lang/StackTraceElement.h>
23 #include <java/lang/Throwable.h>
24 #include <java/lang/Thread.h>
26 #include <gnu/gcj/runtime/NameFinder.h>
28 using namespace gnu::gcj::runtime;
29 using namespace java::lang;
38 struct _Jv_InterpFrameInfo
40 _Jv_InterpMethod *meth;
51 _Jv_FrameType type; /* Native or interpreted. */
54 _Jv_InterpFrameInfo interp;
61 // _Jv_FrameInfo info; /* Frame-type specific data. */
66 typedef struct _Jv_UnwindState;
67 typedef _Unwind_Reason_Code (*_Jv_TraceFn) (_Jv_UnwindState *);
69 struct _Jv_UnwindState
71 jint length; // length of FRAMES
72 jint pos; // current position in FRAMES
73 _Jv_StackFrame *frames; // array of stack frame data to be filled.
75 _Jv_InterpFrame *interp_frame; // current frame in the interpreter stack.
77 _Jv_TraceFn trace_function; // function to call back after each frame
78 // is enumerated. May be NULL.
79 void *trace_data; // additional state data for trace_function.
81 _Jv_UnwindState (jint ln)
86 Thread *thread = Thread::currentThread();
87 // Check for NULL currentThread(), in case an exception is created
88 // very early during the runtime startup.
91 interp_frame = (_Jv_InterpFrame *) thread->interp_frame;
93 trace_function = NULL;
102 _Jv_StackFrame frames[];
104 static void UpdateNCodeMap ();
105 static jclass ClassForFrame (_Jv_StackFrame *frame);
106 static void FillInFrameInfo (_Jv_StackFrame *frame);
107 static void getLineNumberForFrame(_Jv_StackFrame *frame, NameFinder *finder,
108 jstring *sourceFileName, jint *lineNum);
110 static _Unwind_Reason_Code UnwindTraceFn (struct _Unwind_Context *context,
113 static _Unwind_Reason_Code calling_class_trace_fn (_Jv_UnwindState *state);
114 static _Unwind_Reason_Code non_system_trace_fn (_Jv_UnwindState *state);
117 static _Jv_StackTrace *GetStackTrace (void);
118 static JArray< ::java::lang::StackTraceElement *>*
119 GetStackTraceElements (_Jv_StackTrace *trace,
120 java::lang::Throwable *throwable);
121 static jclass GetCallingClass (jclass);
122 static void GetCallerInfo (jclass checkClass, jclass *, _Jv_Method **);
123 static JArray<jclass> *GetClassContext (jclass checkClass);
124 static ClassLoader *GetFirstNonSystemClassLoader (void);
129 #endif /* __JV_STACKTRACE_H__ */