jdk-sandbox: src/hotspot/share/gc/shared/locationPrinter.inline.hpp@5e2576c303a2 (annotated)

57903 5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	1	/*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	2	* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	4	*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	5	* This code is free software; you can redistribute it and/or modify it
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	6	* under the terms of the GNU General Public License version 2 only, as
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	7	* published by the Free Software Foundation.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	8	*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	9	* This code is distributed in the hope that it will be useful, but WITHOUT
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	12	* version 2 for more details (a copy is included in the LICENSE file that
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	13	* accompanied this code).
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	14	*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	15	* You should have received a copy of the GNU General Public License version
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	16	* 2 along with this work; if not, write to the Free Software Foundation,
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	18	*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	20	* or visit www.oracle.com if you need additional information or have any
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	21	* questions.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	22	*
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	23	*/
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	24
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	25	#ifndef SHARE_GC_SHARED_LOCATIONPRINTER_INLINE_HPP
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	26	#define SHARE_GC_SHARED_LOCATIONPRINTER_INLINE_HPP
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	27
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	28	#include "gc/shared/locationPrinter.hpp"
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	29	#include "oops/compressedOops.inline.hpp"
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	30	#include "oops/oopsHierarchy.hpp"
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	31
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	32	template <typename CollectedHeapT>
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	33	oop BlockLocationPrinter<CollectedHeapT>::base_oop_or_null(void* addr) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	34	if (is_valid_obj(addr)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	35	// We were just given an oop directly.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	36	return oop(addr);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	37	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	38
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	39	// Try to find addr using block_start.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	40	HeapWord* p = CollectedHeapT::heap()->block_start(addr);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	41	if (p != NULL && CollectedHeapT::heap()->block_is_obj(p)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	42	if (!is_valid_obj(p)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	43	return NULL;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	44	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	45	return oop(p);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	46	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	47
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	48	return NULL;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	49	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	50
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	51	template <typename CollectedHeapT>
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	52	bool BlockLocationPrinter<CollectedHeapT>::print_location(outputStream* st, void* addr) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	53	// Check if addr points into Java heap.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	54	if (CollectedHeapT::heap()->is_in(addr)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	55	oop o = base_oop_or_null(addr);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	56	if (o != NULL) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	57	if ((void*)o == addr) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	58	st->print(INTPTR_FORMAT " is an oop: ", p2i(addr));
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	59	} else {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	60	st->print(INTPTR_FORMAT " is pointing into object: " , p2i(addr));
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	61	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	62	o->print_on(st);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	63	return true;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	64	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	65	} else if (CollectedHeapT::heap()->is_in_reserved(addr)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	66	st->print_cr(INTPTR_FORMAT " is an unallocated location in the heap", p2i(addr));
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	67	return true;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	68	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	69
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	70	// Compressed oop needs to be decoded first.
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	71	#ifdef _LP64
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	72	if (UseCompressedOops && ((uintptr_t)addr &~ (uintptr_t)max_juint) == 0) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	73	narrowOop narrow_oop = (narrowOop)(uintptr_t)addr;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	74	oop o = CompressedOops::decode_raw(narrow_oop);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	75
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	76	if (is_valid_obj((address)o)) {
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	77	st->print(UINT32_FORMAT " is a compressed pointer to object: ", narrow_oop);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	78	o->print_on(st);
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	79	return true;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	80	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	81	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	82	#endif
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	83
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	84	return false;
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	85	}
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	86
5e2576c303a2 8229278: Improve hs_err location printing to assume less about GC internals eosterlund parents: diff changeset	87	#endif // SHARE_GC_SHARED_LOCATIONPRINTER_INLINE_HPP

author	eosterlund
	Wed, 28 Aug 2019 11:19:09 +0200
changeset 57903	5e2576c303a2
permissions	-rw-r--r--