Mercurial > hg > truffle
view src/cpu/zero/vm/javaFrameAnchor_zero.hpp @ 5762:b30cced39597
generalized functionality for finding classes based on searching for patterns in source code and moved it from commands.py to mx.py
used above functionality to find classes manually excluded from JaCoCo processing
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 04 Jul 2012 21:56:48 +0200 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2007, 2008, 2010 Red Hat, Inc. * 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 CPU_ZERO_VM_JAVAFRAMEANCHOR_ZERO_HPP #define CPU_ZERO_VM_JAVAFRAMEANCHOR_ZERO_HPP private: ZeroFrame* volatile _last_Java_fp; public: // Each arch must define reset, save, restore // These are used by objects that only care about: // 1 - initializing a new state (thread creation, javaCalls) // 2 - saving a current state (javaCalls) // 3 - restoring an old state (javaCalls) // Note that whenever _last_Java_sp != NULL other anchor fields // must be valid. The profiler apparently depends on this. void clear() { // clearing _last_Java_sp must be first _last_Java_sp = NULL; // fence? _last_Java_fp = NULL; _last_Java_pc = NULL; } void copy(JavaFrameAnchor* src) { set(src->_last_Java_sp, src->_last_Java_pc, src->_last_Java_fp); } void set(intptr_t* sp, address pc, ZeroFrame* fp) { // In order to make sure the transition state is valid for "this" // We must clear _last_Java_sp before copying the rest of the new // data // // Hack Alert: Temporary bugfix for 4717480/4721647 To act like // previous version (pd_cache_state) don't NULL _last_Java_sp // unless the value is changing // if (_last_Java_sp != sp) _last_Java_sp = NULL; _last_Java_fp = fp; _last_Java_pc = pc; // Must be last so profiler will always see valid frame if // has_last_frame() is true _last_Java_sp = sp; } bool walkable() { return true; } void make_walkable(JavaThread* thread) { // nothing to do } intptr_t* last_Java_sp() const { return _last_Java_sp; } ZeroFrame* last_Java_fp() const { return _last_Java_fp; } address last_Java_pc() const { return _last_Java_pc; } static ByteSize last_Java_fp_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_fp); } #endif // CPU_ZERO_VM_JAVAFRAMEANCHOR_ZERO_HPP