< prev index next >
src/share/vm/prims/stackwalk.hpp
Print this page
*** 27,61 ****
#define SHARE_VM_PRIMS_STACKWALK_HPP
#include "oops/oop.hpp"
#include "runtime/vframe.hpp"
! //
! // JavaFrameStream is used by StackWalker to iterate through Java stack frames
! // on the given JavaThread.
! //
! class JavaFrameStream : public StackObj {
private:
enum {
magic_pos = 0
};
JavaThread* _thread;
- javaVFrame* _jvf;
jlong _anchor;
public:
! JavaFrameStream(JavaThread* thread, RegisterMap* rm)
! : _thread(thread), _anchor(0L) {
! _jvf = _thread->last_java_vframe(rm);
! }
! javaVFrame* java_frame() { return _jvf; }
! void next() { _jvf = _jvf->java_sender(); }
! bool at_end() { return _jvf == NULL; }
! Method* method() { return _jvf->method(); }
! int bci() { return _jvf->bci(); }
void setup_magic_on_entry(objArrayHandle frames_array);
bool check_magic(objArrayHandle frames_array);
bool cleanup_magic_on_exit(objArrayHandle frames_array);
--- 27,64 ----
#define SHARE_VM_PRIMS_STACKWALK_HPP
#include "oops/oop.hpp"
#include "runtime/vframe.hpp"
! // BaseFrameStream is an abstract base class for encapsulating the VM-side
! // implementation of the StackWalker API. There are two concrete subclasses:
! // - JavaFrameStream:
! // -based on vframeStream; used in most instances
! // - LiveFrameStream:
! // -based on javaVFrame; used for retrieving locals/monitors/operands for
! // LiveStackFrame
! class BaseFrameStream : public StackObj {
private:
enum {
magic_pos = 0
};
JavaThread* _thread;
jlong _anchor;
+ protected:
+ void fill_stackframe(Handle stackFrame, const methodHandle& method);
public:
! BaseFrameStream(JavaThread* thread) : _thread(thread), _anchor(0L) {}
! virtual void next()=0;
! virtual bool at_end()=0;
! virtual Method* method()=0;
! virtual int bci()=0;
!
! virtual void fill_frame(int index, objArrayHandle frames_array,
! const methodHandle& method, TRAPS)=0;
void setup_magic_on_entry(objArrayHandle frames_array);
bool check_magic(objArrayHandle frames_array);
bool cleanup_magic_on_exit(objArrayHandle frames_array);
*** 65,112 ****
jlong address_value() {
return (jlong) castable_address(this);
}
! static JavaFrameStream* from_current(JavaThread* thread, jlong magic, objArrayHandle frames_array);
};
class StackWalk : public AllStatic {
private:
! static int fill_in_frames(jlong mode, JavaFrameStream& stream,
int max_nframes, int start_index,
objArrayHandle frames_array,
int& end_index, TRAPS);
- static void fill_stackframe(Handle stackFrame, const methodHandle& method, int bci);
-
- static void fill_live_stackframe(Handle stackFrame, const methodHandle& method, int bci,
- javaVFrame* jvf, TRAPS);
-
static inline bool get_caller_class(int mode) {
return (mode & JVM_STACKWALK_GET_CALLER_CLASS) != 0;
}
static inline bool skip_hidden_frames(int mode) {
return (mode & JVM_STACKWALK_SHOW_HIDDEN_FRAMES) == 0;
}
- static inline bool need_method_info(int mode) {
- return (mode & JVM_STACKWALK_FILL_CLASS_REFS_ONLY) == 0;
- }
static inline bool live_frame_info(int mode) {
return (mode & JVM_STACKWALK_FILL_LIVE_STACK_FRAMES) != 0;
}
public:
static inline bool use_frames_array(int mode) {
return (mode & JVM_STACKWALK_FILL_CLASS_REFS_ONLY) == 0;
}
static oop walk(Handle stackStream, jlong mode,
int skip_frames, int frame_count, int start_index,
objArrayHandle frames_array,
TRAPS);
! static jint moreFrames(Handle stackStream, jlong mode, jlong magic,
int frame_count, int start_index,
! objArrayHandle frames_array,
! TRAPS);
};
#endif // SHARE_VM_PRIMS_STACKWALK_HPP
--- 68,155 ----
jlong address_value() {
return (jlong) castable_address(this);
}
! static BaseFrameStream* from_current(JavaThread* thread, jlong magic, objArrayHandle frames_array);
! };
!
! class JavaFrameStream : public BaseFrameStream {
! private:
! vframeStream _vfst;
! bool _need_method_info;
! public:
! JavaFrameStream(JavaThread* thread, int mode);
!
! void next() { _vfst.next();}
! bool at_end() { return _vfst.at_end(); }
!
! Method* method() { return _vfst.method(); }
! int bci() { return _vfst.bci(); }
!
! void fill_frame(int index, objArrayHandle frames_array,
! const methodHandle& method, TRAPS);
! };
!
! class LiveFrameStream : public BaseFrameStream {
! private:
! javaVFrame* _jvf;
!
! void fill_live_stackframe(Handle stackFrame, const methodHandle& method, TRAPS);
! static oop create_primitive_value_instance(StackValueCollection* values,
! int i, TRAPS);
! static objArrayHandle monitors_to_object_array(GrowableArray<MonitorInfo*>* monitors,
! TRAPS);
! static objArrayHandle values_to_object_array(StackValueCollection* values, TRAPS);
! public:
! LiveFrameStream(JavaThread* thread, RegisterMap* rm) : BaseFrameStream(thread) {
! _jvf = thread->last_java_vframe(rm);
! }
!
! void next() { _jvf = _jvf->java_sender(); }
! bool at_end() { return _jvf == NULL; }
!
! Method* method() { return _jvf->method(); }
! int bci() { return _jvf->bci(); }
!
! void fill_frame(int index, objArrayHandle frames_array,
! const methodHandle& method, TRAPS);
};
class StackWalk : public AllStatic {
private:
! static int fill_in_frames(jlong mode, BaseFrameStream& stream,
int max_nframes, int start_index,
objArrayHandle frames_array,
int& end_index, TRAPS);
static inline bool get_caller_class(int mode) {
return (mode & JVM_STACKWALK_GET_CALLER_CLASS) != 0;
}
static inline bool skip_hidden_frames(int mode) {
return (mode & JVM_STACKWALK_SHOW_HIDDEN_FRAMES) == 0;
}
static inline bool live_frame_info(int mode) {
return (mode & JVM_STACKWALK_FILL_LIVE_STACK_FRAMES) != 0;
}
public:
+ static inline bool need_method_info(int mode) {
+ return (mode & JVM_STACKWALK_FILL_CLASS_REFS_ONLY) == 0;
+ }
static inline bool use_frames_array(int mode) {
return (mode & JVM_STACKWALK_FILL_CLASS_REFS_ONLY) == 0;
}
static oop walk(Handle stackStream, jlong mode,
int skip_frames, int frame_count, int start_index,
objArrayHandle frames_array,
TRAPS);
! static oop fetchFirstBatch(BaseFrameStream& stream, Handle stackStream,
! jlong mode, int skip_frames, int frame_count,
! int start_index, objArrayHandle frames_array, TRAPS);
!
! static jint fetchNextBatch(Handle stackStream, jlong mode, jlong magic,
int frame_count, int start_index,
! objArrayHandle frames_array, TRAPS);
};
#endif // SHARE_VM_PRIMS_STACKWALK_HPP
< prev index next >