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src/os_cpu/solaris_x86/vm/assembler_solaris_x86.cpp@9b8ce46870df (annotated)

src/os_cpu/solaris_x86/vm/assembler_solaris_x86.cpp

Thu, 16 Feb 2012 17:12:49 -0800

author

kvn

date

Thu, 16 Feb 2012 17:12:49 -0800

changeset 3577

9b8ce46870df

parent 2314

f95d63e2154a

child 4318

cd3d6a6b95d9

permissions

-rw-r--r--

7145346: VerifyStackAtCalls is broken
Summary: Replace call_epilog() encoding with macroassembler use. Moved duplicated code to x86.ad. Fixed return_addr() definition.
Reviewed-by: never

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "asm/assembler.hpp"
stefank@2314	27	#include "assembler_x86.inline.hpp"
stefank@2314	28	#include "runtime/os.hpp"
stefank@2314	29	#include "runtime/threadLocalStorage.hpp"
duke@435	30
duke@435	31
duke@435	32	void MacroAssembler::int3() {
never@739	33	push(rax);
never@739	34	push(rdx);
never@739	35	push(rcx);
duke@435	36	call(RuntimeAddress(CAST_FROM_FN_PTR(address, os::breakpoint)));
never@739	37	pop(rcx);
never@739	38	pop(rdx);
never@739	39	pop(rax);
duke@435	40	}
duke@435	41
never@739	42	#define __ _masm->
never@739	43	#ifndef _LP64
never@739	44	static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
duke@435	45
duke@435	46	// slow call to of thr_getspecific
duke@435	47	// int thr_getspecific(thread_key_t key, void **value);
duke@435	48	// Consider using pthread_getspecific instead.
duke@435	49
never@739	50	__ push(0); // allocate space for return value
never@739	51	if (thread != rax) __ push(rax); // save rax, if caller still wants it
never@739	52	__ push(rcx); // save caller save
never@739	53	__ push(rdx); // save caller save
duke@435	54	if (thread != rax) {
never@739	55	__ lea(thread, Address(rsp, 3 * sizeof(int))); // address of return value
duke@435	56	} else {
never@739	57	__ lea(thread, Address(rsp, 2 * sizeof(int))); // address of return value
duke@435	58	}
never@739	59	__ push(thread); // and pass the address
never@739	60	__ push(ThreadLocalStorage::thread_index()); // the key
never@739	61	__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
never@739	62	__ increment(rsp, 2 * wordSize);
never@739	63	__ pop(rdx);
never@739	64	__ pop(rcx);
never@739	65	if (thread != rax) __ pop(rax);
never@739	66	__ pop(thread);
never@739	67
duke@435	68	}
never@739	69	#else
never@739	70	static void slow_call_thr_specific(MacroAssembler* _masm, Register thread) {
never@739	71	// slow call to of thr_getspecific
never@739	72	// int thr_getspecific(thread_key_t key, void **value);
never@739	73	// Consider using pthread_getspecific instead.
never@739	74
never@739	75	if (thread != rax) {
never@739	76	__ push(rax);
never@739	77	}
never@739	78	__ push(0); // space for return value
never@739	79	__ push(rdi);
never@739	80	__ push(rsi);
never@739	81	__ lea(rsi, Address(rsp, 16)); // pass return value address
never@739	82	__ push(rdx);
never@739	83	__ push(rcx);
never@739	84	__ push(r8);
never@739	85	__ push(r9);
never@739	86	__ push(r10);
never@739	87	// XXX
never@739	88	__ mov(r10, rsp);
never@739	89	__ andptr(rsp, -16);
never@739	90	__ push(r10);
never@739	91	__ push(r11);
never@739	92
never@739	93	__ movl(rdi, ThreadLocalStorage::thread_index());
never@739	94	__ call(RuntimeAddress(CAST_FROM_FN_PTR(address, thr_getspecific)));
never@739	95
never@739	96	__ pop(r11);
never@739	97	__ pop(rsp);
never@739	98	__ pop(r10);
never@739	99	__ pop(r9);
never@739	100	__ pop(r8);
never@739	101	__ pop(rcx);
never@739	102	__ pop(rdx);
never@739	103	__ pop(rsi);
never@739	104	__ pop(rdi);
never@739	105	__ pop(thread); // load return value
never@739	106	if (thread != rax) {
never@739	107	__ pop(rax);
never@739	108	}
never@739	109	}
never@739	110	#endif //LP64
never@739	111
never@739	112	void MacroAssembler::get_thread(Register thread) {
never@739	113
never@739	114	int segment = NOT_LP64(Assembler::GS_segment) LP64_ONLY(Assembler::FS_segment);
never@739	115	// Try to emit a Solaris-specific fast TSD/TLS accessor.
never@739	116	ThreadLocalStorage::pd_tlsAccessMode tlsMode = ThreadLocalStorage::pd_getTlsAccessMode ();
never@739	117	if (tlsMode == ThreadLocalStorage::pd_tlsAccessIndirect) { // T1
never@739	118	// Use thread as a temporary: mov r, gs:[0]; mov r, [r+tlsOffset]
never@739	119	emit_byte (segment);
never@739	120	// ExternalAddress doesn't work because it can't take NULL
never@739	121	AddressLiteral null(0, relocInfo::none);
never@739	122	movptr (thread, null);
never@739	123	movptr(thread, Address(thread, ThreadLocalStorage::pd_getTlsOffset())) ;
never@739	124	return ;
never@739	125	} else
never@739	126	if (tlsMode == ThreadLocalStorage::pd_tlsAccessDirect) { // T2
never@739	127	// mov r, gs:[tlsOffset]
never@739	128	emit_byte (segment);
never@739	129	AddressLiteral tls_off((address)ThreadLocalStorage::pd_getTlsOffset(), relocInfo::none);
never@739	130	movptr (thread, tls_off);
never@739	131	return ;
never@739	132	}
never@739	133
never@739	134	slow_call_thr_specific(this, thread);
never@739	135
never@739	136	}