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src/os/linux/vm/os_linux.inline.hpp@f95d63e2154a (annotated)

src/os/linux/vm/os_linux.inline.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 2322

828eafbd85cc

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

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	#ifndef OS_LINUX_VM_OS_LINUX_INLINE_HPP
stefank@2314	26	#define OS_LINUX_VM_OS_LINUX_INLINE_HPP
stefank@2314	27
stefank@2314	28	#include "runtime/atomic.hpp"
stefank@2314	29	#include "runtime/os.hpp"
stefank@2314	30	#ifdef TARGET_OS_ARCH_linux_x86
stefank@2314	31	# include "atomic_linux_x86.inline.hpp"
stefank@2314	32	# include "orderAccess_linux_x86.inline.hpp"
stefank@2314	33	#endif
stefank@2314	34	#ifdef TARGET_OS_ARCH_linux_sparc
stefank@2314	35	# include "atomic_linux_sparc.inline.hpp"
stefank@2314	36	# include "orderAccess_linux_sparc.inline.hpp"
stefank@2314	37	#endif
stefank@2314	38	#ifdef TARGET_OS_ARCH_linux_zero
stefank@2314	39	# include "atomic_linux_zero.inline.hpp"
stefank@2314	40	# include "orderAccess_linux_zero.inline.hpp"
stefank@2314	41	#endif
stefank@2314	42
duke@435	43	inline void* os::thread_local_storage_at(int index) {
duke@435	44	return pthread_getspecific((pthread_key_t)index);
duke@435	45	}
duke@435	46
duke@435	47	inline const char* os::file_separator() {
duke@435	48	return "/";
duke@435	49	}
duke@435	50
duke@435	51	inline const char* os::line_separator() {
duke@435	52	return "\n";
duke@435	53	}
duke@435	54
duke@435	55	inline const char* os::path_separator() {
duke@435	56	return ":";
duke@435	57	}
duke@435	58
duke@435	59	inline const char* os::jlong_format_specifier() {
duke@435	60	return "%lld";
duke@435	61	}
duke@435	62
duke@435	63	inline const char* os::julong_format_specifier() {
duke@435	64	return "%llu";
duke@435	65	}
duke@435	66
duke@435	67	// File names are case-sensitive on windows only
duke@435	68	inline int os::file_name_strcmp(const char* s1, const char* s2) {
duke@435	69	return strcmp(s1, s2);
duke@435	70	}
duke@435	71
duke@435	72	inline bool os::obsolete_option(const JavaVMOption *option) {
duke@435	73	return false;
duke@435	74	}
duke@435	75
duke@435	76	inline bool os::uses_stack_guard_pages() {
duke@435	77	return true;
duke@435	78	}
duke@435	79
duke@435	80	inline bool os::allocate_stack_guard_pages() {
duke@435	81	assert(uses_stack_guard_pages(), "sanity check");
duke@435	82	return true;
duke@435	83	}
duke@435	84
duke@435	85
duke@435	86	// On Linux, reservations are made on a page by page basis, nothing to do.
duke@435	87	inline void os::split_reserved_memory(char *base, size_t size,
duke@435	88	size_t split, bool realloc) {
duke@435	89	}
duke@435	90
duke@435	91
duke@435	92	// Bang the shadow pages if they need to be touched to be mapped.
duke@435	93	inline void os::bang_stack_shadow_pages() {
duke@435	94	}
duke@435	95
duke@435	96	inline DIR* os::opendir(const char* dirname)
duke@435	97	{
duke@435	98	assert(dirname != NULL, "just checking");
duke@435	99	return ::opendir(dirname);
duke@435	100	}
duke@435	101
duke@435	102	inline int os::readdir_buf_size(const char *path)
duke@435	103	{
duke@435	104	return NAME_MAX + sizeof(dirent) + 1;
duke@435	105	}
duke@435	106
duke@435	107	inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)
duke@435	108	{
duke@435	109	dirent* p;
duke@435	110	int status;
duke@435	111	assert(dirp != NULL, "just checking");
duke@435	112
duke@435	113	// NOTE: Linux readdir_r (on RH 6.2 and 7.2 at least) is NOT like the POSIX
duke@435	114	// version. Here is the doc for this function:
duke@435	115	// http://www.gnu.org/manual/glibc-2.2.3/html_node/libc_262.html
duke@435	116
duke@435	117	if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
duke@435	118	errno = status;
duke@435	119	return NULL;
duke@435	120	} else
duke@435	121	return p;
duke@435	122	}
duke@435	123
duke@435	124	inline int os::closedir(DIR *dirp)
duke@435	125	{
duke@435	126	assert(dirp != NULL, "just checking");
duke@435	127	return ::closedir(dirp);
duke@435	128	}
duke@435	129
duke@435	130	// macros for restartable system calls
duke@435	131
duke@435	132	#define RESTARTABLE(_cmd, _result) do { \
duke@435	133	_result = _cmd; \
duke@435	134	} while(((int)_result == OS_ERR) && (errno == EINTR))
duke@435	135
duke@435	136	#define RESTARTABLE_RETURN_INT(_cmd) do { \
duke@435	137	int _result; \
duke@435	138	RESTARTABLE(_cmd, _result); \
duke@435	139	return _result; \
duke@435	140	} while(false)
iveresov@576	141
iveresov@576	142	inline bool os::numa_has_static_binding() { return true; }
iveresov@576	143	inline bool os::numa_has_group_homing() { return false; }
stefank@2314	144
stefank@2314	145	#endif // OS_LINUX_VM_OS_LINUX_INLINE_HPP