globalDefinitions_xlc.hpp revision 8881:73e6afceb02e
1/* 2 * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2012, 2013 SAP AG. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26#ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP 27#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP 28 29#include "prims/jni.h" 30 31// This file holds compiler-dependent includes, 32// globally used constants & types, class (forward) 33// declarations and a few frequently used utility functions. 34 35#include <ctype.h> 36#include <string.h> 37#include <stdarg.h> 38#include <stddef.h> 39#include <stdio.h> 40#include <stdlib.h> 41#include <wchar.h> 42 43#include <math.h> 44#include <time.h> 45#include <fcntl.h> 46#include <dlfcn.h> 47#include <pthread.h> 48 49#include <limits.h> 50#include <errno.h> 51 52#include <stdint.h> 53 54// Use XLC compiler builtins instead of inline assembler 55#define USE_XLC_BUILTINS 56#ifdef USE_XLC_BUILTINS 57#include <builtins.h> 58 #if __IBMCPP__ < 1000 59 // the funtion prototype for __dcbtst(void *) is missing in XLC V8.0 60 // I could compile a little test, where I provided the prototype. 61 // The generated code was correct there. This is the prototype: 62 // extern "builtin" void __dcbtst (void *); 63 // For now we don't make use of it when compiling with XLC V8.0 64 #else 65 // __IBMCPP__ >= 1000 66 // XLC V10 provides the prototype for __dcbtst (void *); 67 #define USE_XLC_PREFETCH_WRITE_BUILTIN 68 #endif 69#endif // USE_XLC_BUILTINS 70 71// NULL vs NULL_WORD: 72// On Linux NULL is defined as a special type '__null'. Assigning __null to 73// integer variable will cause gcc warning. Use NULL_WORD in places where a 74// pointer is stored as integer value. On some platforms, sizeof(intptr_t) > 75// sizeof(void*), so here we want something which is integer type, but has the 76// same size as a pointer. 77#ifdef __GNUC__ 78 #error XLC and __GNUC__? 79#else 80 #define NULL_WORD NULL 81#endif 82 83// AIX also needs a 64 bit NULL to work as a null address pointer. 84// Most system includes on AIX would define it as an int 0 if not already defined with one 85// exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again. 86// In this case you need to copy the following defines to a position after #include <dirent.h> 87// (see jmv_aix.h). 88#ifdef AIX 89 #ifdef _LP64 90 #undef NULL 91 #define NULL 0L 92 #else 93 #ifndef NULL 94 #define NULL 0 95 #endif 96 #endif 97#endif // AIX 98 99// Compiler-specific primitive types 100// All defs of int (uint16_6 etc) are defined in AIX' /usr/include/stdint.h 101 102// Additional Java basic types 103 104typedef uint8_t jubyte; 105typedef uint16_t jushort; 106typedef uint32_t juint; 107typedef uint64_t julong; 108 109 110//---------------------------------------------------------------------------------------------------- 111// Constant for jlong (specifying a long long constant is C++ compiler specific) 112 113// Build a 64bit integer constant 114#define CONST64(x) (x ## LL) 115#define UCONST64(x) (x ## ULL) 116 117const jlong min_jlong = CONST64(0x8000000000000000); 118const jlong max_jlong = CONST64(0x7fffffffffffffff); 119 120//---------------------------------------------------------------------------------------------------- 121// Debugging 122 123#define DEBUG_EXCEPTION ::abort(); 124 125extern "C" void breakpoint(); 126#define BREAKPOINT ::breakpoint() 127 128// checking for nanness 129#ifdef AIX 130inline int g_isnan(float f) { return isnan(f); } 131inline int g_isnan(double f) { return isnan(f); } 132#else 133#error "missing platform-specific definition here" 134#endif 135 136// Checking for finiteness 137 138inline int g_isfinite(jfloat f) { return finite(f); } 139inline int g_isfinite(jdouble f) { return finite(f); } 140 141 142// Wide characters 143 144inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } 145 146 147// Portability macros 148#define PRAGMA_INTERFACE #pragma interface 149#define PRAGMA_IMPLEMENTATION #pragma implementation 150#define VALUE_OBJ_CLASS_SPEC 151 152// Formatting. 153#ifdef _LP64 154#define FORMAT64_MODIFIER "l" 155#else // !_LP64 156#define FORMAT64_MODIFIER "ll" 157#endif // _LP64 158 159// Cannot use xlc's offsetof as implementation of hotspot's 160// offset_of(), because xlc warns about applying offsetof() to non-POD 161// object and xlc cannot compile the expression offsetof(DataLayout, 162// _cells[index]) in DataLayout::cell_offset() . Therefore we define 163// offset_of as it is defined for gcc. 164#define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16) 165 166// Some constant sizes used throughout the AIX port 167#define SIZE_1K ((uint64_t) UCONST64( 0x400)) 168#define SIZE_4K ((uint64_t) UCONST64( 0x1000)) 169#define SIZE_64K ((uint64_t) UCONST64( 0x10000)) 170#define SIZE_1M ((uint64_t) UCONST64( 0x100000)) 171#define SIZE_4M ((uint64_t) UCONST64( 0x400000)) 172#define SIZE_8M ((uint64_t) UCONST64( 0x800000)) 173#define SIZE_16M ((uint64_t) UCONST64( 0x1000000)) 174#define SIZE_256M ((uint64_t) UCONST64( 0x10000000)) 175#define SIZE_1G ((uint64_t) UCONST64( 0x40000000)) 176#define SIZE_2G ((uint64_t) UCONST64( 0x80000000)) 177#define SIZE_4G ((uint64_t) UCONST64( 0x100000000)) 178#define SIZE_16G ((uint64_t) UCONST64( 0x400000000)) 179#define SIZE_32G ((uint64_t) UCONST64( 0x800000000)) 180#define SIZE_64G ((uint64_t) UCONST64( 0x1000000000)) 181#define SIZE_1T ((uint64_t) UCONST64(0x10000000000)) 182 183 184#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP 185