Mercurial > hg > graal-compiler
view src/share/vm/ci/ciCallSite.cpp @ 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 | fdb992d83a87 |
children |
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/* * Copyright (c) 2009, 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. * */ #include "precompiled.hpp" #include "ci/ciCallSite.hpp" #include "ci/ciUtilities.hpp" // ciCallSite bool ciCallSite::is_constant_call_site() { return klass()->is_subclass_of(CURRENT_ENV->ConstantCallSite_klass()); } bool ciCallSite::is_mutable_call_site() { return klass()->is_subclass_of(CURRENT_ENV->MutableCallSite_klass()); } bool ciCallSite::is_volatile_call_site() { return klass()->is_subclass_of(CURRENT_ENV->VolatileCallSite_klass()); } // ------------------------------------------------------------------ // ciCallSite::get_target // // Return the target MethodHandle of this CallSite. ciMethodHandle* ciCallSite::get_target() const { VM_ENTRY_MARK; oop method_handle_oop = java_lang_invoke_CallSite::target(get_oop()); return CURRENT_ENV->get_object(method_handle_oop)->as_method_handle(); } // ------------------------------------------------------------------ // ciCallSite::print // // Print debugging information about the CallSite. void ciCallSite::print() { Unimplemented(); }