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view src/share/vm/gc_implementation/g1/g1HRPrinter.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 | 5f6f2615433a |
children |
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/* * Copyright (c) 2011, 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_G1HRPRINTER_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP #include "memory/allocation.hpp" #include "gc_implementation/g1/heapRegion.hpp" #define SKIP_RETIRED_FULL_REGIONS 1 class G1HRPrinter VALUE_OBJ_CLASS_SPEC { public: typedef enum { Alloc, AllocForce, Retire, Reuse, CSet, EvacFailure, Cleanup, PostCompaction, Commit, Uncommit } ActionType; typedef enum { Unset, Eden, Survivor, Old, SingleHumongous, StartsHumongous, ContinuesHumongous } RegionType; typedef enum { StartGC, EndGC, StartFullGC, EndFullGC } PhaseType; private: bool _active; static const char* action_name(ActionType action); static const char* region_type_name(RegionType type); static const char* phase_name(PhaseType phase); // Print an action event. This version is used in most scenarios and // only prints the region's bottom. The parameters type and top are // optional (the "not set" values are Unset and NULL). static void print(ActionType action, RegionType type, HeapRegion* hr, HeapWord* top); // Print an action event. This version prints both the region's // bottom and end. Used for Commit / Uncommit events. static void print(ActionType action, HeapWord* bottom, HeapWord* end); // Print a phase event. static void print(PhaseType phase, size_t phase_num); public: // In some places we iterate over a list in order to generate output // for the list's elements. By exposing this we can avoid this // iteration if the printer is not active. const bool is_active() { return _active; } // Have to set this explicitly as we have to do this during the // heap's initialize() method, not in the constructor. void set_active(bool active) { _active = active; } // The methods below are convenient wrappers for the print() methods. void alloc(HeapRegion* hr, RegionType type, bool force = false) { if (is_active()) { print((!force) ? Alloc : AllocForce, type, hr, NULL); } } void alloc(RegionType type, HeapRegion* hr, HeapWord* top) { if (is_active()) { print(Alloc, type, hr, top); } } void retire(HeapRegion* hr) { if (is_active()) { if (!SKIP_RETIRED_FULL_REGIONS || hr->top() < hr->end()) { print(Retire, Unset, hr, hr->top()); } } } void reuse(HeapRegion* hr) { if (is_active()) { print(Reuse, Unset, hr, NULL); } } void cset(HeapRegion* hr) { if (is_active()) { print(CSet, Unset, hr, NULL); } } void evac_failure(HeapRegion* hr) { if (is_active()) { print(EvacFailure, Unset, hr, NULL); } } void cleanup(HeapRegion* hr) { if (is_active()) { print(Cleanup, Unset, hr, NULL); } } void post_compaction(HeapRegion* hr, RegionType type) { if (is_active()) { print(PostCompaction, type, hr, hr->top()); } } void commit(HeapWord* bottom, HeapWord* end) { if (is_active()) { print(Commit, bottom, end); } } void uncommit(HeapWord* bottom, HeapWord* end) { if (is_active()) { print(Uncommit, bottom, end); } } void start_gc(bool full, size_t gc_num) { if (is_active()) { if (!full) { print(StartGC, gc_num); } else { print(StartFullGC, gc_num); } } } void end_gc(bool full, size_t gc_num) { if (is_active()) { if (!full) { print(EndGC, gc_num); } else { print(EndFullGC, gc_num); } } } G1HRPrinter() : _active(false) { } }; #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1HRPRINTER_HPP