Mercurial > hg > graal-compiler
view src/cpu/sparc/vm/javaFrameAnchor_sparc.hpp @ 12315:c1fbf21c7397
8024492: [TESTBUG] Test library class Platform.java needs to include methods for missing OS's and architectures
Summary: Added methods for 32bit, arm, ppc, x64 and x86
Reviewed-by: zgu, hseigel, mseledtsov
author | ctornqvi |
---|---|
date | Wed, 25 Sep 2013 17:47:51 +0200 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 2002, 2010, 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 CPU_SPARC_VM_JAVAFRAMEANCHOR_SPARC_HPP #define CPU_SPARC_VM_JAVAFRAMEANCHOR_SPARC_HPP private: volatile int _flags; public: enum pd_Constants { flushed = 1 // winodows have flushed }; int flags(void) { return _flags; } void set_flags(int flags) { _flags = flags; } static ByteSize flags_offset() { return byte_offset_of(JavaFrameAnchor, _flags); } // Each arch must define clear, copy // 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) void clear(void) { // clearing _last_Java_sp must be first _last_Java_sp = NULL; // fence? _flags = 0; _last_Java_pc = NULL; } void copy(JavaFrameAnchor* src) { // 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 != src->_last_Java_sp) _last_Java_sp = NULL; _flags = src->_flags; _last_Java_pc = src->_last_Java_pc; // Must be last so profiler will always see valid frame if has_last_frame() is true _last_Java_sp = src->_last_Java_sp; } // Is stack walkable inline bool walkable( void) { return _flags & flushed; } void make_walkable(JavaThread* thread); void set_last_Java_sp(intptr_t* sp) { _last_Java_sp = sp; } address last_Java_pc(void) { return _last_Java_pc; } // These are only used by friends private: intptr_t* last_Java_sp() const { // _last_Java_sp will always be a an unbiased stack pointer // if is is biased then some setter screwed up. This is // deadly. #ifdef _LP64 assert(((intptr_t)_last_Java_sp & 0xF) == 0, "Biased last_Java_sp"); #endif return _last_Java_sp; } void capture_last_Java_pc(intptr_t* sp); void set_window_flushed( void) { _flags |= flushed; OrderAccess::fence(); } #endif // CPU_SPARC_VM_JAVAFRAMEANCHOR_SPARC_HPP