--- old/src/os_cpu/linux_zero/vm/thread_linux_zero.hpp Tue Sep 13 12:29:33 2011 +++ /dev/null Tue Sep 13 12:29:09 2011 @@ -1,121 +0,0 @@ -/* - * 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_LINUX_ZERO_VM_THREAD_LINUX_ZERO_HPP -#define OS_CPU_LINUX_ZERO_VM_THREAD_LINUX_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_LINUX_ZERO_VM_THREAD_LINUX_ZERO_HPP --- /dev/null Tue Sep 13 12:29:09 2011 +++ new/src/os_cpu/bsd_zero/vm/thread_bsd_zero.hpp Tue Sep 13 12:29:33 2011 @@ -0,0 +1,121 @@ +/* + * 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