Mercurial > hg > graal-compiler
view src/os_cpu/bsd_zero/vm/thread_bsd_zero.hpp @ 7945:da53cb17186a
Added tag jdk8-b76 for changeset 20b605466ccb
author | katleman |
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date | Thu, 07 Feb 2013 12:32:50 -0800 |
parents | f08d439fab8c |
children | e16282db4946 |
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/* * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2007, 2008, 2009, 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 OS_CPU_BSD_ZERO_VM_THREAD_BSD_ZERO_HPP #define OS_CPU_BSD_ZERO_VM_THREAD_BSD_ZERO_HPP private: ZeroStack _zero_stack; ZeroFrame* _top_zero_frame; void pd_initialize() { _top_zero_frame = NULL; } public: ZeroStack *zero_stack() { return &_zero_stack; } public: ZeroFrame *top_zero_frame() { return _top_zero_frame; } void push_zero_frame(ZeroFrame *frame) { *(ZeroFrame **) frame = _top_zero_frame; _top_zero_frame = frame; } void pop_zero_frame() { zero_stack()->set_sp((intptr_t *) _top_zero_frame + 1); _top_zero_frame = *(ZeroFrame **) _top_zero_frame; } public: static ByteSize zero_stack_offset() { return byte_offset_of(JavaThread, _zero_stack); } static ByteSize top_zero_frame_offset() { return byte_offset_of(JavaThread, _top_zero_frame); } public: void record_base_of_stack_pointer() { assert(top_zero_frame() == NULL, "junk on stack prior to Java call"); } void set_base_of_stack_pointer(intptr_t* base_sp) { assert(base_sp == NULL, "should be"); assert(top_zero_frame() == NULL, "junk on stack after Java call"); } public: void set_last_Java_frame() { set_last_Java_frame(top_zero_frame(), zero_stack()->sp()); } void reset_last_Java_frame() { frame_anchor()->zap(); } void set_last_Java_frame(ZeroFrame* fp, intptr_t* sp) { frame_anchor()->set(sp, NULL, fp); } public: ZeroFrame* last_Java_fp() { return frame_anchor()->last_Java_fp(); } private: frame pd_last_frame() { assert(has_last_Java_frame(), "must have last_Java_sp() when suspended"); return frame(last_Java_fp(), last_Java_sp()); } public: static ByteSize last_Java_fp_offset() { return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset(); } public: // Check for pending suspend requests and pending asynchronous // exceptions. There are separate accessors for these, but // _suspend_flags is volatile so using them would be unsafe. bool has_special_condition_for_native_trans() { return _suspend_flags != 0; } public: bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext, bool isInJava) { ShouldNotCallThis(); } // These routines are only used on cpu architectures that // have separate register stacks (Itanium). static bool register_stack_overflow() { return false; } static void enable_register_stack_guard() {} static void disable_register_stack_guard() {} #endif // OS_CPU_BSD_ZERO_VM_THREAD_BSD_ZERO_HPP