1 /* 2 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef OS_SOLARIS_OS_SOLARIS_INLINE_HPP 26 #define OS_SOLARIS_OS_SOLARIS_INLINE_HPP 27 28 #include "runtime/os.hpp" 29 30 // System includes 31 #include <sys/param.h> 32 #include <dlfcn.h> 33 #include <sys/socket.h> 34 #include <poll.h> 35 #include <sys/filio.h> 36 #include <unistd.h> 37 #include <netdb.h> 38 #include <setjmp.h> 39 40 inline bool os::uses_stack_guard_pages() { 41 return true; 42 } 43 44 inline bool os::must_commit_stack_guard_pages() { 45 assert(uses_stack_guard_pages(), "sanity check"); 46 int r = thr_main() ; 47 guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ; 48 return r; 49 } 50 51 52 // On Solaris, reservations are made on a page by page basis, nothing to do. 53 inline void os::pd_split_reserved_memory(char *base, size_t size, 54 size_t split, bool realloc) { 55 } 56 57 58 // Bang the shadow pages if they need to be touched to be mapped. 59 inline void os::map_stack_shadow_pages(address sp) { 60 } 61 62 inline void os::dll_unload(void *lib) { ::dlclose(lib); } 63 64 ////////////////////////////////////////////////////////////////////////////// 65 //////////////////////////////////////////////////////////////////////////////// 66 67 // macros for restartable system calls 68 69 #define RESTARTABLE(_cmd, _result) do { \ 70 do { \ 71 _result = _cmd; \ 72 } while((_result == OS_ERR) && (errno == EINTR)); \ 73 } while(false) 74 75 #define RESTARTABLE_RETURN_INT(_cmd) do { \ 76 int _result; \ 77 RESTARTABLE(_cmd, _result); \ 78 return _result; \ 79 } while(false) 80 81 inline bool os::numa_has_static_binding() { return false; } 82 inline bool os::numa_has_group_homing() { return true; } 83 84 inline int os::socket(int domain, int type, int protocol) { 85 return ::socket(domain, type, protocol); 86 } 87 88 inline struct hostent* os::get_host_by_name(char* name) { 89 return ::gethostbyname(name); 90 } 91 92 inline bool os::supports_monotonic_clock() { 93 // javaTimeNanos() is monotonic on Solaris, see getTimeNanos() comments 94 return true; 95 } 96 97 inline void os::exit(int num) { 98 ::exit(num); 99 } 100 101 #endif // OS_SOLARIS_OS_SOLARIS_INLINE_HPP