1 /* 2 * Copyright (c) 2013, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef JAVA_MD_SOLINUX_H 27 #define JAVA_MD_SOLINUX_H 28 29 #ifdef HAVE_GETHRTIME 30 /* 31 * Support for doing cheap, accurate interval timing. 32 */ 33 #include <sys/time.h> 34 #define CounterGet() (gethrtime()/1000) 35 #define Counter2Micros(counts) (counts) 36 #else /* ! HAVE_GETHRTIME */ 37 /* 38 * * Add gethrtime() implementation for launch time debug on Linux. 39 * */ 40 #include <sys/time.h> 41 inline uint64_t gethrtime() { 42 uint64_t result = 0; 43 struct timeval tv; 44 if (gettimeofday(&tv, NULL) != -1) { 45 result = 1000000LL * (uint64_t)tv.tv_sec; 46 result += (uint64_t)tv.tv_usec; 47 } 48 return result; 49 } 50 51 #define CounterGet() (gethrtime()) 52 #define Counter2Micros(counts) (counts) 53 #endif /* HAVE_GETHRTIME */ 54 55 /* pointer to environment */ 56 extern char **environ; 57 58 /* 59 * A collection of useful strings. One should think of these as #define 60 * entries, but actual strings can be more efficient (with many compilers). 61 */ 62 #ifdef __solaris__ 63 static const char *user_dir = "/jdk"; 64 #else /* !__solaris__, i.e. Linux, AIX,.. */ 65 static const char *user_dir = "/java"; 66 #endif 67 68 #include <dlfcn.h> 69 #ifdef __solaris__ 70 #include <thread.h> 71 #else 72 #include <pthread.h> 73 #endif 74 75 #endif /* JAVA_MD_SOLINUX_H */