Mercurial > hg > graal-compiler
view src/share/vm/c1/c1_Compiler.cpp @ 477:24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X.
Reviewed-by: acorn, jcoomes
author | coleenp |
---|---|
date | Wed, 10 Dec 2008 15:14:29 -0800 |
parents | a61af66fc99e |
children | 72cfb36c6bb2 c18cbe5936b8 |
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/* * Copyright 1999-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_c1_Compiler.cpp.incl" volatile int Compiler::_runtimes = uninitialized; volatile bool Compiler::_compiling = false; Compiler::Compiler() { } Compiler::~Compiler() { Unimplemented(); } void Compiler::initialize() { if (_runtimes != initialized) { initialize_runtimes( Runtime1::initialize, &_runtimes); } mark_initialized(); } void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) { if (!is_initialized()) { initialize(); } // invoke compilation #ifdef TIERED // We are thread in native here... CompilerThread* thread = CompilerThread::current(); { ThreadInVMfromNative tv(thread); MutexLocker only_one (C1_lock, thread); while ( _compiling) { C1_lock->wait(); } _compiling = true; } #endif // TIERED { // We are nested here because we need for the destructor // of Compilation to occur before we release the any // competing compiler thread ResourceMark rm; Compilation c(this, env, method, entry_bci); } #ifdef TIERED { ThreadInVMfromNative tv(thread); MutexLocker only_one (C1_lock, thread); _compiling = false; C1_lock->notify(); } #endif // TIERED } void Compiler::print_timers() { Compilation::print_timers(); }