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src/os_cpu/bsd_x86/vm/assembler_bsd_x86.cpp@758935f7c23f (annotated)

src/os_cpu/bsd_x86/vm/assembler_bsd_x86.cpp

Fri, 08 Feb 2013 12:48:24 +0100

author

sla

date

Fri, 08 Feb 2013 12:48:24 +0100

changeset 4564

758935f7c23f

parent 4318

cd3d6a6b95d9

child 6876

710a3c8b516e

permissions

-rw-r--r--

8006423: SA: NullPointerException in sun.jvm.hotspot.debugger.bsd.BsdThread.getContext(BsdThread.java:67)
Summary: Do not rely on mach thread port names to identify threads from SA
Reviewed-by: dholmes, minqi, rbackman

never@3156	1	/*
never@3156	2	* Copyright (c) 1999, 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	#include "precompiled.hpp"
twisti@4318	26	#include "asm/macroAssembler.hpp"
twisti@4318	27	#include "asm/macroAssembler.inline.hpp"
never@3156	28	#include "runtime/os.hpp"
never@3156	29	#include "runtime/threadLocalStorage.hpp"
never@3156	30
never@3156	31	#ifndef _LP64
never@3156	32	void MacroAssembler::int3() {
never@3156	33	call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
never@3156	34	}
never@3156	35
never@3156	36	void MacroAssembler::get_thread(Register thread) {
never@3156	37	movl(thread, rsp);
never@3156	38	shrl(thread, PAGE_SHIFT);
never@3156	39
never@3156	40	ExternalAddress tls_base((address)ThreadLocalStorage::sp_map_addr());
never@3156	41	Address index(noreg, thread, Address::times_4);
never@3156	42	ArrayAddress tls(tls_base, index);
never@3156	43
never@3156	44	movptr(thread, tls);
never@3156	45	}
never@3156	46	#else
never@3156	47	void MacroAssembler::int3() {
never@3156	48	call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
never@3156	49	}
never@3156	50
never@3156	51	void MacroAssembler::get_thread(Register thread) {
never@3156	52	// call pthread_getspecific
never@3156	53	// void * pthread_getspecific(pthread_key_t key);
never@3156	54	if (thread != rax) {
never@3156	55	push(rax);
never@3156	56	}
never@3156	57	push(rdi);
never@3156	58	push(rsi);
never@3156	59	push(rdx);
never@3156	60	push(rcx);
never@3156	61	push(r8);
never@3156	62	push(r9);
never@3156	63	push(r10);
never@3156	64	// XXX
never@3156	65	mov(r10, rsp);
never@3156	66	andq(rsp, -16);
never@3156	67	push(r10);
never@3156	68	push(r11);
never@3156	69
never@3156	70	movl(rdi, ThreadLocalStorage::thread_index());
never@3156	71	call(RuntimeAddress(CAST_FROM_FN_PTR(address, pthread_getspecific)));
never@3156	72
never@3156	73	pop(r11);
never@3156	74	pop(rsp);
never@3156	75	pop(r10);
never@3156	76	pop(r9);
never@3156	77	pop(r8);
never@3156	78	pop(rcx);
never@3156	79	pop(rdx);
never@3156	80	pop(rsi);
never@3156	81	pop(rdi);
never@3156	82	if (thread != rax) {
never@3156	83	mov(thread, rax);
never@3156	84	pop(rax);
never@3156	85	}
never@3156	86	}
never@3156	87	#endif