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view src/share/vm/gc_implementation/g1/g1StringDedupStat.hpp @ 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. * */ #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP #include "memory/allocation.hpp" #include "runtime/os.hpp" // Macros for GC log output formating #define G1_STRDEDUP_OBJECTS_FORMAT UINTX_FORMAT_W(12) #define G1_STRDEDUP_TIME_FORMAT "%1.7lf secs" #define G1_STRDEDUP_PERCENT_FORMAT "%5.1lf%%" #define G1_STRDEDUP_PERCENT_FORMAT_NS "%.1lf%%" #define G1_STRDEDUP_BYTES_FORMAT "%8.1lf%s" #define G1_STRDEDUP_BYTES_FORMAT_NS "%.1lf%s" #define G1_STRDEDUP_BYTES_PARAM(bytes) byte_size_in_proper_unit((double)(bytes)), proper_unit_for_byte_size((bytes)) // // Statistics gathered by the deduplication thread. // class G1StringDedupStat : public StackObj { private: // Counters uintx _inspected; uintx _skipped; uintx _hashed; uintx _known; uintx _new; uintx _new_bytes; uintx _deduped; uintx _deduped_bytes; uintx _deduped_young; uintx _deduped_young_bytes; uintx _deduped_old; uintx _deduped_old_bytes; uintx _idle; uintx _exec; uintx _block; // Time spent by the deduplication thread in different phases double _start; double _idle_elapsed; double _exec_elapsed; double _block_elapsed; public: G1StringDedupStat(); void inc_inspected() { _inspected++; } void inc_skipped() { _skipped++; } void inc_hashed() { _hashed++; } void inc_known() { _known++; } void inc_new(uintx bytes) { _new++; _new_bytes += bytes; } void inc_deduped_young(uintx bytes) { _deduped++; _deduped_bytes += bytes; _deduped_young++; _deduped_young_bytes += bytes; } void inc_deduped_old(uintx bytes) { _deduped++; _deduped_bytes += bytes; _deduped_old++; _deduped_old_bytes += bytes; } void mark_idle() { _start = os::elapsedTime(); _idle++; } void mark_exec() { double now = os::elapsedTime(); _idle_elapsed = now - _start; _start = now; _exec++; } void mark_block() { double now = os::elapsedTime(); _exec_elapsed += now - _start; _start = now; _block++; } void mark_unblock() { double now = os::elapsedTime(); _block_elapsed += now - _start; _start = now; } void mark_done() { double now = os::elapsedTime(); _exec_elapsed += now - _start; } void add(const G1StringDedupStat& stat); static void print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat); static void print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total); }; #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP