1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/utilities/globalDefinitions_xlc.hpp Fri Sep 06 20:16:09 2013 +0200
1.3 @@ -0,0 +1,202 @@
1.4 +/*
1.5 + * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2012, 2013 SAP AG. All rights reserved.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
1.30 +#define SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
1.31 +
1.32 +#include "prims/jni.h"
1.33 +
1.34 +// This file holds compiler-dependent includes,
1.35 +// globally used constants & types, class (forward)
1.36 +// declarations and a few frequently used utility functions.
1.37 +
1.38 +#include <ctype.h>
1.39 +#include <string.h>
1.40 +#include <stdarg.h>
1.41 +#include <stddef.h>
1.42 +#include <stdio.h>
1.43 +#include <stdlib.h>
1.44 +#include <wchar.h>
1.45 +
1.46 +#include <math.h>
1.47 +#ifndef FP_PZERO
1.48 +// Linux doesn't have positive/negative zero
1.49 +#define FP_PZERO FP_ZERO
1.50 +#endif
1.51 +#if (!defined fpclass)
1.52 +#define fpclass fpclassify
1.53 +#endif
1.54 +
1.55 +#include <time.h>
1.56 +#include <fcntl.h>
1.57 +#include <dlfcn.h>
1.58 +#include <pthread.h>
1.59 +
1.60 +#include <limits.h>
1.61 +#include <errno.h>
1.62 +
1.63 +#include <stdint.h>
1.64 +
1.65 +// Use XLC compiler builtins instead of inline assembler
1.66 +#define USE_XLC_BUILTINS
1.67 +#ifdef USE_XLC_BUILTINS
1.68 +#include <builtins.h>
1.69 + #if __IBMCPP__ < 1000
1.70 + // the funtion prototype for __dcbtst(void *) is missing in XLC V8.0
1.71 + // I could compile a little test, where I provided the prototype.
1.72 + // The generated code was correct there. This is the prototype:
1.73 + // extern "builtin" void __dcbtst (void *);
1.74 + // For now we don't make use of it when compiling with XLC V8.0
1.75 + #else
1.76 + // __IBMCPP__ >= 1000
1.77 + // XLC V10 provides the prototype for __dcbtst (void *);
1.78 + #define USE_XLC_PREFETCH_WRITE_BUILTIN
1.79 + #endif
1.80 +#endif // USE_XLC_BUILTINS
1.81 +
1.82 +// NULL vs NULL_WORD:
1.83 +// On Linux NULL is defined as a special type '__null'. Assigning __null to
1.84 +// integer variable will cause gcc warning. Use NULL_WORD in places where a
1.85 +// pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
1.86 +// sizeof(void*), so here we want something which is integer type, but has the
1.87 +// same size as a pointer.
1.88 +#ifdef __GNUC__
1.89 + #error XLC and __GNUC__?
1.90 +#else
1.91 + #define NULL_WORD NULL
1.92 +#endif
1.93 +
1.94 +// AIX also needs a 64 bit NULL to work as a null address pointer.
1.95 +// Most system includes on AIX would define it as an int 0 if not already defined with one
1.96 +// exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again.
1.97 +// In this case you need to copy the following defines to a position after #include <dirent.h>
1.98 +// (see jmv_aix.h).
1.99 +#ifdef AIX
1.100 + #ifdef _LP64
1.101 + #undef NULL
1.102 + #define NULL 0L
1.103 + #else
1.104 + #ifndef NULL
1.105 + #define NULL 0
1.106 + #endif
1.107 + #endif
1.108 +#endif // AIX
1.109 +
1.110 +// Compiler-specific primitive types
1.111 +// All defs of int (uint16_6 etc) are defined in AIX' /usr/include/stdint.h
1.112 +
1.113 +// Additional Java basic types
1.114 +
1.115 +typedef uint8_t jubyte;
1.116 +typedef uint16_t jushort;
1.117 +typedef uint32_t juint;
1.118 +typedef uint64_t julong;
1.119 +
1.120 +//----------------------------------------------------------------------------------------------------
1.121 +// Special (possibly not-portable) casts
1.122 +// Cast floats into same-size integers and vice-versa w/o changing bit-pattern
1.123 +// %%%%%% These seem like standard C++ to me--how about factoring them out? - Ungar
1.124 +
1.125 +inline jint jint_cast (jfloat x) { return *(jint* )&x; }
1.126 +inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; }
1.127 +
1.128 +inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; }
1.129 +inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; }
1.130 +
1.131 +//----------------------------------------------------------------------------------------------------
1.132 +// Constant for jlong (specifying an long long canstant is C++ compiler specific)
1.133 +
1.134 +// Build a 64bit integer constant
1.135 +#define CONST64(x) (x ## LL)
1.136 +#define UCONST64(x) (x ## ULL)
1.137 +
1.138 +const jlong min_jlong = CONST64(0x8000000000000000);
1.139 +const jlong max_jlong = CONST64(0x7fffffffffffffff);
1.140 +
1.141 +//----------------------------------------------------------------------------------------------------
1.142 +// Debugging
1.143 +
1.144 +#define DEBUG_EXCEPTION ::abort();
1.145 +
1.146 +extern "C" void breakpoint();
1.147 +#define BREAKPOINT ::breakpoint()
1.148 +
1.149 +// checking for nanness
1.150 +#ifdef AIX
1.151 +inline int g_isnan(float f) { return isnan(f); }
1.152 +inline int g_isnan(double f) { return isnan(f); }
1.153 +#else
1.154 +#error "missing platform-specific definition here"
1.155 +#endif
1.156 +
1.157 +// Checking for finiteness
1.158 +
1.159 +inline int g_isfinite(jfloat f) { return finite(f); }
1.160 +inline int g_isfinite(jdouble f) { return finite(f); }
1.161 +
1.162 +
1.163 +// Wide characters
1.164 +
1.165 +inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
1.166 +
1.167 +
1.168 +// Portability macros
1.169 +#define PRAGMA_INTERFACE #pragma interface
1.170 +#define PRAGMA_IMPLEMENTATION #pragma implementation
1.171 +#define VALUE_OBJ_CLASS_SPEC
1.172 +
1.173 +// Formatting.
1.174 +#ifdef _LP64
1.175 +#define FORMAT64_MODIFIER "l"
1.176 +#else // !_LP64
1.177 +#define FORMAT64_MODIFIER "ll"
1.178 +#endif // _LP64
1.179 +
1.180 +// Cannot use xlc's offsetof as implementation of hotspot's
1.181 +// offset_of(), because xlc warns about applying offsetof() to non-POD
1.182 +// object and xlc cannot compile the expression offsetof(DataLayout,
1.183 +// _cells[index]) in DataLayout::cell_offset() . Therefore we define
1.184 +// offset_of as it is defined for gcc.
1.185 +#define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16)
1.186 +
1.187 +// Some constant sizes used throughout the AIX port
1.188 +#define SIZE_1K ((uint64_t) 0x400ULL)
1.189 +#define SIZE_4K ((uint64_t) 0x1000ULL)
1.190 +#define SIZE_64K ((uint64_t) 0x10000ULL)
1.191 +#define SIZE_1M ((uint64_t) 0x100000ULL)
1.192 +#define SIZE_4M ((uint64_t) 0x400000ULL)
1.193 +#define SIZE_8M ((uint64_t) 0x800000ULL)
1.194 +#define SIZE_16M ((uint64_t) 0x1000000ULL)
1.195 +#define SIZE_256M ((uint64_t) 0x10000000ULL)
1.196 +#define SIZE_1G ((uint64_t) 0x40000000ULL)
1.197 +#define SIZE_2G ((uint64_t) 0x80000000ULL)
1.198 +#define SIZE_4G ((uint64_t) 0x100000000ULL)
1.199 +#define SIZE_16G ((uint64_t) 0x400000000ULL)
1.200 +#define SIZE_32G ((uint64_t) 0x800000000ULL)
1.201 +#define SIZE_64G ((uint64_t) 0x1000000000ULL)
1.202 +#define SIZE_1T ((uint64_t) 0x10000000000ULL)
1.203 +
1.204 +
1.205 +#endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP
