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src/os_cpu/linux_zero/vm/os_linux_zero.hpp@f95d63e2154a (annotated)

src/os_cpu/linux_zero/vm/os_linux_zero.hpp

Tue, 23 Nov 2010 13:22:55 -0800

author

stefank

date

Tue, 23 Nov 2010 13:22:55 -0800

changeset 2314

f95d63e2154a

parent 1907

c18cbe5936b8

child 6440

0f03ff49c720

permissions

-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

never@1445	1	/*
stefank@2314	2	* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
twisti@1701	3	* Copyright 2007, 2008, 2010 Red Hat, Inc.
never@1445	4	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@1445	5	*
never@1445	6	* This code is free software; you can redistribute it and/or modify it
never@1445	7	* under the terms of the GNU General Public License version 2 only, as
never@1445	8	* published by the Free Software Foundation.
never@1445	9	*
never@1445	10	* This code is distributed in the hope that it will be useful, but WITHOUT
never@1445	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@1445	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
never@1445	13	* version 2 for more details (a copy is included in the LICENSE file that
never@1445	14	* accompanied this code).
never@1445	15	*
never@1445	16	* You should have received a copy of the GNU General Public License version
never@1445	17	* 2 along with this work; if not, write to the Free Software Foundation,
never@1445	18	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@1445	19	*
trims@1907	20	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	21	* or visit www.oracle.com if you need additional information or have any
trims@1907	22	* questions.
never@1445	23	*
never@1445	24	*/
never@1445	25
stefank@2314	26	#ifndef OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP
stefank@2314	27	#define OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP
stefank@2314	28
never@1445	29	static void setup_fpu() {}
never@1445	30
never@1445	31	static bool is_allocatable(size_t bytes);
never@1445	32
never@1445	33	// Used to register dynamic code cache area with the OS
never@1445	34	// Note: Currently only used in 64 bit Windows implementations
never@1445	35	static bool register_code_area(char *low, char *high) { return true; }
never@1445	36
never@1445	37	// Atomically copy 64 bits of data
never@1445	38	static void atomic_copy64(volatile void *src, volatile void *dst) {
never@1445	39	#if defined(PPC) && !defined(_LP64)
never@1445	40	double tmp;
never@1445	41	asm volatile ("lfd %0, 0(%1)\n"
never@1445	42	"stfd %0, 0(%2)\n"
never@1445	43	: "=f"(tmp)
never@1445	44	: "b"(src), "b"(dst));
twisti@1701	45	#elif defined(S390) && !defined(_LP64)
twisti@1701	46	double tmp;
twisti@1701	47	asm volatile ("ld %0, 0(%1)\n"
twisti@1701	48	"std %0, 0(%2)\n"
twisti@1701	49	: "=r"(tmp)
twisti@1701	50	: "a"(src), "a"(dst));
never@1445	51	#else
never@1445	52	*(jlong *) dst = *(jlong *) src;
twisti@1701	53	#endif
never@1445	54	}
stefank@2314	55
stefank@2314	56	#endif // OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP