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src/os_cpu/bsd_x86/vm/thread_bsd_x86.hpp@f08d439fab8c (annotated)

src/os_cpu/bsd_x86/vm/thread_bsd_x86.hpp

Sun, 25 Sep 2011 16:03:29 -0700

author

never

date

Sun, 25 Sep 2011 16:03:29 -0700

changeset 3156

f08d439fab8c

child 5237

f2110083203d

permissions

-rw-r--r--

7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>

never@3156	1	/*
never@3156	2	* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
never@3156	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@3156	4	*
never@3156	5	* This code is free software; you can redistribute it and/or modify it
never@3156	6	* under the terms of the GNU General Public License version 2 only, as
never@3156	7	* published by the Free Software Foundation.
never@3156	8	*
never@3156	9	* This code is distributed in the hope that it will be useful, but WITHOUT
never@3156	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@3156	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@3156	12	* version 2 for more details (a copy is included in the LICENSE file that
never@3156	13	* accompanied this code).
never@3156	14	*
never@3156	15	* You should have received a copy of the GNU General Public License version
never@3156	16	* 2 along with this work; if not, write to the Free Software Foundation,
never@3156	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@3156	18	*
never@3156	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
never@3156	20	* or visit www.oracle.com if you need additional information or have any
never@3156	21	* questions.
never@3156	22	*
never@3156	23	*/
never@3156	24
never@3156	25	#ifndef OS_CPU_BSD_X86_VM_THREAD_BSD_X86_HPP
never@3156	26	#define OS_CPU_BSD_X86_VM_THREAD_BSD_X86_HPP
never@3156	27
never@3156	28	private:
never@3156	29	void pd_initialize() {
never@3156	30	_anchor.clear();
never@3156	31	}
never@3156	32
never@3156	33	frame pd_last_frame() {
never@3156	34	assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
never@3156	35	if (_anchor.last_Java_pc() != NULL) {
never@3156	36	return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp(), _anchor.last_Java_pc());
never@3156	37	} else {
never@3156	38	// This will pick up pc from sp
never@3156	39	return frame(_anchor.last_Java_sp(), _anchor.last_Java_fp());
never@3156	40	}
never@3156	41	}
never@3156	42
never@3156	43	public:
never@3156	44	// Mutators are highly dangerous....
never@3156	45	intptr_t* last_Java_fp() { return _anchor.last_Java_fp(); }
never@3156	46	void set_last_Java_fp(intptr_t* fp) { _anchor.set_last_Java_fp(fp); }
never@3156	47
never@3156	48	void set_base_of_stack_pointer(intptr_t* base_sp) {
never@3156	49	}
never@3156	50
never@3156	51	static ByteSize last_Java_fp_offset() {
never@3156	52	return byte_offset_of(JavaThread, _anchor) + JavaFrameAnchor::last_Java_fp_offset();
never@3156	53	}
never@3156	54
never@3156	55	intptr_t* base_of_stack_pointer() {
never@3156	56	return NULL;
never@3156	57	}
never@3156	58	void record_base_of_stack_pointer() {
never@3156	59	}
never@3156	60
never@3156	61	bool pd_get_top_frame_for_signal_handler(frame* fr_addr, void* ucontext,
never@3156	62	bool isInJava);
never@3156	63
never@3156	64	// These routines are only used on cpu architectures that
never@3156	65	// have separate register stacks (Itanium).
never@3156	66	static bool register_stack_overflow() { return false; }
never@3156	67	static void enable_register_stack_guard() {}
never@3156	68	static void disable_register_stack_guard() {}
never@3156	69
never@3156	70	#endif // OS_CPU_BSD_X86_VM_THREAD_BSD_X86_HPP