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src/cpu/x86/vm/copy_x86.hpp@448691f285a5 (annotated)

src/cpu/x86/vm/copy_x86.hpp

Thu, 03 Nov 2011 04:12:49 -0700

author

twisti

date

Thu, 03 Nov 2011 04:12:49 -0700

changeset 3252

448691f285a5

parent 3156

f08d439fab8c

child 6876

710a3c8b516e

permissions

-rw-r--r--

7106944: assert(_pc == *pc_addr) failed may be too strong
Reviewed-by: kvn, never

duke@435	1	/*
stefank@2314	2	* Copyright (c) 2003, 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	#ifndef CPU_X86_VM_COPY_X86_HPP
stefank@2314	26	#define CPU_X86_VM_COPY_X86_HPP
stefank@2314	27
duke@435	28	// Inline functions for memory copy and fill.
duke@435	29
duke@435	30	// Contains inline asm implementations
stefank@2314	31	#ifdef TARGET_OS_ARCH_linux_x86
stefank@2314	32	# include "copy_linux_x86.inline.hpp"
stefank@2314	33	#endif
stefank@2314	34	#ifdef TARGET_OS_ARCH_solaris_x86
stefank@2314	35	# include "copy_solaris_x86.inline.hpp"
stefank@2314	36	#endif
stefank@2314	37	#ifdef TARGET_OS_ARCH_windows_x86
stefank@2314	38	# include "copy_windows_x86.inline.hpp"
stefank@2314	39	#endif
never@3156	40	#ifdef TARGET_OS_ARCH_bsd_x86
never@3156	41	# include "copy_bsd_x86.inline.hpp"
never@3156	42	#endif
stefank@2314	43
duke@435	44
duke@435	45	static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
duke@435	46	#ifdef AMD64
duke@435	47	julong* to = (julong*) tohw;
duke@435	48	julong v = ((julong) value << 32) | value;
duke@435	49	while (count-- > 0) {
duke@435	50	*to++ = v;
duke@435	51	}
duke@435	52	#else
duke@435	53	juint* to = (juint*)tohw;
duke@435	54	count *= HeapWordSize / BytesPerInt;
duke@435	55	while (count-- > 0) {
duke@435	56	*to++ = value;
duke@435	57	}
duke@435	58	#endif // AMD64
duke@435	59	}
duke@435	60
duke@435	61	static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
duke@435	62	pd_fill_to_words(tohw, count, value);
duke@435	63	}
duke@435	64
duke@435	65	static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
duke@435	66	(void)memset(to, value, count);
duke@435	67	}
duke@435	68
duke@435	69	static void pd_zero_to_words(HeapWord* tohw, size_t count) {
duke@435	70	pd_fill_to_words(tohw, count, 0);
duke@435	71	}
duke@435	72
duke@435	73	static void pd_zero_to_bytes(void* to, size_t count) {
duke@435	74	(void)memset(to, 0, count);
duke@435	75	}
stefank@2314	76
stefank@2314	77	#endif // CPU_X86_VM_COPY_X86_HPP