Mercurial > hg > graal-compiler
view src/share/vm/prims/whitebox.hpp @ 8710:9058789475af
7107135: Stack guard pages are no more protected after loading a shared library with executable stack
Summary: Detect the execstack attribute of the loaded library and attempt to fix the stack guard using Safepoint op.
Reviewed-by: dholmes, zgu
Contributed-by: ioi.lam@oracle.com
author | iklam |
---|---|
date | Tue, 05 Mar 2013 13:55:56 -0800 |
parents | 12e01444ca2d |
children | de6a9e811145 |
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/* * Copyright (c) 2012, 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_WHITEBOX_HPP #define SHARE_VM_PRIMS_WHITEBOX_HPP #include "prims/jni.h" #include "memory/allocation.hpp" #include "oops/oopsHierarchy.hpp" // Entry macro to transition from JNI to VM state. #define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header) #define WB_END JNI_END #define WB_METHOD_DECLARE(result_type) extern "C" result_type JNICALL class WhiteBox : public AllStatic { private: static bool _used; public: static bool used() { return _used; } static void set_used() { _used = true; } static int offset_for_field(const char* field_name, oop object, Symbol* signature_symbol); static const char* lookup_jstring(const char* field_name, oop object); static bool lookup_bool(const char* field_name, oop object); }; #endif // SHARE_VM_PRIMS_WHITEBOX_HPP