Mercurial > hg > truffle
view src/share/vm/gc_implementation/g1/g1StringDedupStat.cpp @ 20228:f72d8917322a
8050978: Fix bad field access check in C1 and C2
Summary: JCK8 test vm/constantpool/accessControl/accessControl004/accessControl00402m3/accessControl00402m3.html fails with -Xbatch -Xcomp due to bad field access check in C1 and C2. Fix: In ciField::ciField(), just before the canonical holder is stored into the _holder variable (and which is used by ciField::will_link()) perform an additional access check with the holder declared in the class file. If this check fails, store the declared holder instead and ciField::will_link() will bail out compilation for this field later on. Then, the interpreter will throw an PrivilegedAccessException at runtime.
Reviewed-by: kvn, vlivanov
Contributed-by: andreas.schoesser@sap.com
author | goetz |
---|---|
date | Fri, 18 Jul 2014 09:04:01 +0200 |
parents | 595c0f60d50d |
children |
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/* * Copyright (c) 2014, 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. * */ #include "precompiled.hpp" #include "gc_implementation/g1/g1StringDedupStat.hpp" G1StringDedupStat::G1StringDedupStat() : _inspected(0), _skipped(0), _hashed(0), _known(0), _new(0), _new_bytes(0), _deduped(0), _deduped_bytes(0), _deduped_young(0), _deduped_young_bytes(0), _deduped_old(0), _deduped_old_bytes(0), _idle(0), _exec(0), _block(0), _start(0.0), _idle_elapsed(0.0), _exec_elapsed(0.0), _block_elapsed(0.0) { } void G1StringDedupStat::add(const G1StringDedupStat& stat) { _inspected += stat._inspected; _skipped += stat._skipped; _hashed += stat._hashed; _known += stat._known; _new += stat._new; _new_bytes += stat._new_bytes; _deduped += stat._deduped; _deduped_bytes += stat._deduped_bytes; _deduped_young += stat._deduped_young; _deduped_young_bytes += stat._deduped_young_bytes; _deduped_old += stat._deduped_old; _deduped_old_bytes += stat._deduped_old_bytes; _idle += stat._idle; _exec += stat._exec; _block += stat._block; _idle_elapsed += stat._idle_elapsed; _exec_elapsed += stat._exec_elapsed; _block_elapsed += stat._block_elapsed; } void G1StringDedupStat::print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat) { double total_deduped_bytes_percent = 0.0; if (total_stat._new_bytes > 0) { // Avoid division by zero total_deduped_bytes_percent = (double)total_stat._deduped_bytes / (double)total_stat._new_bytes * 100.0; } st->date_stamp(PrintGCDateStamps); st->stamp(PrintGCTimeStamps); st->print_cr( "[GC concurrent-string-deduplication, " G1_STRDEDUP_BYTES_FORMAT_NS"->"G1_STRDEDUP_BYTES_FORMAT_NS"("G1_STRDEDUP_BYTES_FORMAT_NS"), avg " G1_STRDEDUP_PERCENT_FORMAT_NS", "G1_STRDEDUP_TIME_FORMAT"]", G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes), G1_STRDEDUP_BYTES_PARAM(last_stat._new_bytes - last_stat._deduped_bytes), G1_STRDEDUP_BYTES_PARAM(last_stat._deduped_bytes), total_deduped_bytes_percent, last_stat._exec_elapsed); } void G1StringDedupStat::print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total) { double young_percent = 0.0; double old_percent = 0.0; double skipped_percent = 0.0; double hashed_percent = 0.0; double known_percent = 0.0; double new_percent = 0.0; double deduped_percent = 0.0; double deduped_bytes_percent = 0.0; double deduped_young_percent = 0.0; double deduped_young_bytes_percent = 0.0; double deduped_old_percent = 0.0; double deduped_old_bytes_percent = 0.0; if (stat._inspected > 0) { // Avoid division by zero skipped_percent = (double)stat._skipped / (double)stat._inspected * 100.0; hashed_percent = (double)stat._hashed / (double)stat._inspected * 100.0; known_percent = (double)stat._known / (double)stat._inspected * 100.0; new_percent = (double)stat._new / (double)stat._inspected * 100.0; } if (stat._new > 0) { // Avoid division by zero deduped_percent = (double)stat._deduped / (double)stat._new * 100.0; } if (stat._deduped > 0) { // Avoid division by zero deduped_young_percent = (double)stat._deduped_young / (double)stat._deduped * 100.0; deduped_old_percent = (double)stat._deduped_old / (double)stat._deduped * 100.0; } if (stat._new_bytes > 0) { // Avoid division by zero deduped_bytes_percent = (double)stat._deduped_bytes / (double)stat._new_bytes * 100.0; } if (stat._deduped_bytes > 0) { // Avoid division by zero deduped_young_bytes_percent = (double)stat._deduped_young_bytes / (double)stat._deduped_bytes * 100.0; deduped_old_bytes_percent = (double)stat._deduped_old_bytes / (double)stat._deduped_bytes * 100.0; } if (total) { st->print_cr( " [Total Exec: "UINTX_FORMAT"/"G1_STRDEDUP_TIME_FORMAT", Idle: "UINTX_FORMAT"/"G1_STRDEDUP_TIME_FORMAT", Blocked: "UINTX_FORMAT"/"G1_STRDEDUP_TIME_FORMAT"]", stat._exec, stat._exec_elapsed, stat._idle, stat._idle_elapsed, stat._block, stat._block_elapsed); } else { st->print_cr( " [Last Exec: "G1_STRDEDUP_TIME_FORMAT", Idle: "G1_STRDEDUP_TIME_FORMAT", Blocked: "UINTX_FORMAT"/"G1_STRDEDUP_TIME_FORMAT"]", stat._exec_elapsed, stat._idle_elapsed, stat._block, stat._block_elapsed); } st->print_cr( " [Inspected: "G1_STRDEDUP_OBJECTS_FORMAT"]\n" " [Skipped: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]\n" " [Hashed: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]\n" " [Known: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]\n" " [New: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT") "G1_STRDEDUP_BYTES_FORMAT"]\n" " [Deduplicated: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT") "G1_STRDEDUP_BYTES_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]\n" " [Young: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT") "G1_STRDEDUP_BYTES_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]\n" " [Old: "G1_STRDEDUP_OBJECTS_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT") "G1_STRDEDUP_BYTES_FORMAT"("G1_STRDEDUP_PERCENT_FORMAT")]", stat._inspected, stat._skipped, skipped_percent, stat._hashed, hashed_percent, stat._known, known_percent, stat._new, new_percent, G1_STRDEDUP_BYTES_PARAM(stat._new_bytes), stat._deduped, deduped_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_bytes), deduped_bytes_percent, stat._deduped_young, deduped_young_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_young_bytes), deduped_young_bytes_percent, stat._deduped_old, deduped_old_percent, G1_STRDEDUP_BYTES_PARAM(stat._deduped_old_bytes), deduped_old_bytes_percent); }