1 // java-stack.h - Definitions for unwinding & inspecting the call stack.
3 /* Copyright (C) 2005, 2006 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__
18 #include <gcj/javaprims.h>
20 #include <java-interp.h>
22 #include <java/lang/Class.h>
23 #include <java/lang/StackTraceElement.h>
24 #include <java/lang/Throwable.h>
25 #include <java/lang/Thread.h>
27 #include <gnu/gcj/runtime/NameFinder.h>
29 using namespace gnu::gcj::runtime
;
30 using namespace java::lang
;
39 struct _Jv_InterpFrameInfo
41 _Jv_InterpMethod
*meth
;
52 _Jv_FrameType type
; /* Native or interpreted. */
55 _Jv_InterpFrameInfo interp
;
62 // _Jv_FrameInfo info; /* Frame-type specific data. */
67 typedef struct _Jv_UnwindState
;
68 typedef _Unwind_Reason_Code (*_Jv_TraceFn
) (_Jv_UnwindState
*);
70 struct _Jv_UnwindState
72 jint length
; // length of FRAMES
73 jint pos
; // current position in FRAMES
74 _Jv_StackFrame
*frames
; // array of stack frame data to be filled.
76 _Jv_InterpFrame
*interp_frame
; // current frame in the interpreter stack.
78 _Jv_TraceFn trace_function
; // function to call back after each frame
79 // is enumerated. May be NULL.
80 void *trace_data
; // additional state data for trace_function.
82 _Jv_UnwindState (jint ln
)
87 Thread
*thread
= Thread::currentThread();
88 // Check for NULL currentThread(), in case an exception is created
89 // very early during the runtime startup.
92 interp_frame
= (_Jv_InterpFrame
*) thread
->interp_frame
;
94 trace_function
= NULL
;
103 _Jv_StackFrame frames
[];
105 static void UpdateNCodeMap ();
106 static jclass
ClassForFrame (_Jv_StackFrame
*frame
);
107 static void FillInFrameInfo (_Jv_StackFrame
*frame
);
108 static void getLineNumberForFrame(_Jv_StackFrame
*frame
, NameFinder
*finder
,
109 jstring
*sourceFileName
, jint
*lineNum
,
110 jstring
*methodName
);
112 static _Unwind_Reason_Code
UnwindTraceFn (struct _Unwind_Context
*context
,
115 static _Unwind_Reason_Code
calling_class_trace_fn (_Jv_UnwindState
*state
);
116 static _Unwind_Reason_Code
non_system_trace_fn (_Jv_UnwindState
*state
);
117 static _Unwind_Reason_Code
accesscontrol_trace_fn (_Jv_UnwindState
*state
);
120 static _Jv_StackTrace
*GetStackTrace (void);
121 static JArray
< ::java::lang::StackTraceElement
*>*
122 GetStackTraceElements (_Jv_StackTrace
*trace
,
123 java::lang::Throwable
*throwable
);
124 static jclass
GetCallingClass (jclass
);
125 static void GetCallerInfo (jclass checkClass
, jclass
*, _Jv_Method
**);
126 static JArray
<jclass
> *GetClassContext (jclass checkClass
);
127 static ClassLoader
*GetFirstNonSystemClassLoader (void);
128 static JArray
<jobjectArray
> *GetAccessControlStack ();
132 // Information about a given address.
135 // File name of the defining module.
136 const char *file_name
;
138 // Base address of the loaded module.
141 // Name of the nearest symbol.
142 const char *sym_name
;
144 // Address of the nearest symbol.
149 // On systems with a real dladdr(), the file and symbol names given by
150 // _Jv_platform_dladdr() are not dynamically allocated. On Windows,
155 free ((void *)file_name
);
158 free ((void *)sym_name
);
163 #endif /* __JV_STACKTRACE_H__ */