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8143911: Reintegrate JEP 259: Stack-Walking API

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Co-authored-by: Brent Christian <brent.christian@oracle.com>
Co-authored-by: Daniel Fuchs <daniel.fuchs@oracle.com>
Co-authored-by: Hamlin Li <huaming.li@oracle.com>
Reviewed-by: coleenp, dfuchs, bchristi, psandoz, sspitsyn
This commit is contained in:
Mandy Chung 2015-11-24 14:59:17 -08:00
parent 7171a533ff
commit 2b732b223e
14 changed files with 1080 additions and 58 deletions
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102
hotspot/src/share/vm/prims/stackwalk.hpp Normal file
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/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef SHARE_VM_PRIMS_STACKWALK_HPP
#define SHARE_VM_PRIMS_STACKWALK_HPP
#include "oops/oop.hpp"
#include "runtime/vframe.hpp"
class StackWalkAnchor : public StackObj {
private:
enum {
magic_pos = 0
};
JavaThread* _thread;
vframeStream _vfst;
jlong _anchor;
public:
StackWalkAnchor(JavaThread* thread)
: _thread(thread), _vfst(thread), _anchor(0L) {}
vframeStream& vframe_stream() { return _vfst; }
JavaThread* thread() { return _thread; }
void setup_magic_on_entry(objArrayHandle classes_array);
bool check_magic(objArrayHandle classes_array);
bool cleanup_magic_on_exit(objArrayHandle classes_array);
bool is_valid_in(Thread* thread, objArrayHandle classes_array) {
return (_thread == thread && check_magic(classes_array));
}
jlong address_value() {
return (jlong) castable_address(this);
}
static StackWalkAnchor* from_current(JavaThread* thread, jlong anchor, objArrayHandle frames_array);
};
class StackWalk : public AllStatic {
private:
static int fill_in_frames(jlong mode, vframeStream& vfst,
int max_nframes, int start_index,
objArrayHandle classes_array,
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 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;
}
static inline bool fill_in_stacktrace(int mode) {
return (mode & JVM_STACKWALK_FILTER_FILL_IN_STACK_TRACE) != 0;
}
public:
static oop walk(Handle stackStream, jlong mode,
int skip_frames, int frame_count, int start_index,
objArrayHandle classes_array,
objArrayHandle frames_array,
TRAPS);
static jint moreFrames(Handle stackStream, jlong mode, jlong magic,
int frame_count, int start_index,
objArrayHandle classes_array,
objArrayHandle frames_array,
TRAPS);
};
#endif // SHARE_VM_PRIMS_STACKWALK_HPP