Mercurial > hg > truffle

comparison src/share/vm/utilities/globalDefinitions_xlc.hpp @ 14518:d8041d695d19

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merged with jdk9/dev/hotspot changeset 3812c088b945
author twisti
date Tue, 11 Mar 2014 18:45:59 -0700
parents 666e6ce3976c
children b6a8cc1e0d92
comparison
equal deleted inserted replaced
14141:f97c5ec83832 14518:d8041d695d19
1 /*
2 * Copyright (c) 1998, 2013, 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 #ifndef FP_PZERO
45 // Linux doesn't have positive/negative zero
46 #define FP_PZERO FP_ZERO
47 #endif
48 #if (!defined fpclass)
49 #define fpclass fpclassify
50 #endif
51
52 #include <time.h>
53 #include <fcntl.h>
54 #include <dlfcn.h>
55 #include <pthread.h>
56
57 #include <limits.h>
58 #include <errno.h>
59
60 #include <stdint.h>
61
62 // Use XLC compiler builtins instead of inline assembler
63 #define USE_XLC_BUILTINS
64 #ifdef USE_XLC_BUILTINS
65 #include <builtins.h>
66 #if __IBMCPP__ < 1000
67 // the funtion prototype for __dcbtst(void *) is missing in XLC V8.0
68 // I could compile a little test, where I provided the prototype.
69 // The generated code was correct there. This is the prototype:
70 // extern "builtin" void __dcbtst (void *);
71 // For now we don't make use of it when compiling with XLC V8.0
72 #else
73 // __IBMCPP__ >= 1000
74 // XLC V10 provides the prototype for __dcbtst (void *);
75 #define USE_XLC_PREFETCH_WRITE_BUILTIN
76 #endif
77 #endif // USE_XLC_BUILTINS
78
79 // NULL vs NULL_WORD:
80 // On Linux NULL is defined as a special type '__null'. Assigning __null to
81 // integer variable will cause gcc warning. Use NULL_WORD in places where a
82 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) >
83 // sizeof(void*), so here we want something which is integer type, but has the
84 // same size as a pointer.
85 #ifdef __GNUC__
86 #error XLC and __GNUC__?
87 #else
88 #define NULL_WORD NULL
89 #endif
90
91 // AIX also needs a 64 bit NULL to work as a null address pointer.
92 // Most system includes on AIX would define it as an int 0 if not already defined with one
93 // exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again.
94 // In this case you need to copy the following defines to a position after #include <dirent.h>
95 // (see jmv_aix.h).
96 #ifdef AIX
97 #ifdef _LP64
98 #undef NULL
99 #define NULL 0L
100 #else
101 #ifndef NULL
102 #define NULL 0
103 #endif
104 #endif
105 #endif // AIX
106
107 // Compiler-specific primitive types
108 // All defs of int (uint16_6 etc) are defined in AIX' /usr/include/stdint.h
109
110 // Additional Java basic types
111
112 typedef uint8_t jubyte;
113 typedef uint16_t jushort;
114 typedef uint32_t juint;
115 typedef uint64_t julong;
116
117 //----------------------------------------------------------------------------------------------------
118 // Special (possibly not-portable) casts
119 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern
120 // %%%%%% These seem like standard C++ to me--how about factoring them out? - Ungar
121
122 inline jint jint_cast (jfloat x) { return *(jint* )&x; }
123 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; }
124
125 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; }
126 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; }
127
128 //----------------------------------------------------------------------------------------------------
129 // Constant for jlong (specifying an long long canstant is C++ compiler specific)
130
131 // Build a 64bit integer constant
132 #define CONST64(x) (x ## LL)
133 #define UCONST64(x) (x ## ULL)
134
135 const jlong min_jlong = CONST64(0x8000000000000000);
136 const jlong max_jlong = CONST64(0x7fffffffffffffff);
137
138 //----------------------------------------------------------------------------------------------------
139 // Debugging
140
141 #define DEBUG_EXCEPTION ::abort();
142
143 extern "C" void breakpoint();
144 #define BREAKPOINT ::breakpoint()
145
146 // checking for nanness
147 #ifdef AIX
148 inline int g_isnan(float f) { return isnan(f); }
149 inline int g_isnan(double f) { return isnan(f); }
150 #else
151 #error "missing platform-specific definition here"
152 #endif
153
154 // Checking for finiteness
155
156 inline int g_isfinite(jfloat f) { return finite(f); }
157 inline int g_isfinite(jdouble f) { return finite(f); }
158
159
160 // Wide characters
161
162 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); }
163
164
165 // Portability macros
166 #define PRAGMA_INTERFACE #pragma interface
167 #define PRAGMA_IMPLEMENTATION #pragma implementation
168 #define VALUE_OBJ_CLASS_SPEC
169
170 // Formatting.
171 #ifdef _LP64
172 #define FORMAT64_MODIFIER "l"
173 #else // !_LP64
174 #define FORMAT64_MODIFIER "ll"
175 #endif // _LP64
176
177 // Cannot use xlc's offsetof as implementation of hotspot's
178 // offset_of(), because xlc warns about applying offsetof() to non-POD
179 // object and xlc cannot compile the expression offsetof(DataLayout,
180 // _cells[index]) in DataLayout::cell_offset() . Therefore we define
181 // offset_of as it is defined for gcc.
182 #define offset_of(klass,field) (size_t)((intx)&(((klass*)16)->field) - 16)
183
184 // Some constant sizes used throughout the AIX port
185 #define SIZE_1K ((uint64_t) 0x400ULL)
186 #define SIZE_4K ((uint64_t) 0x1000ULL)
187 #define SIZE_64K ((uint64_t) 0x10000ULL)
188 #define SIZE_1M ((uint64_t) 0x100000ULL)
189 #define SIZE_4M ((uint64_t) 0x400000ULL)
190 #define SIZE_8M ((uint64_t) 0x800000ULL)
191 #define SIZE_16M ((uint64_t) 0x1000000ULL)
192 #define SIZE_256M ((uint64_t) 0x10000000ULL)
193 #define SIZE_1G ((uint64_t) 0x40000000ULL)
194 #define SIZE_2G ((uint64_t) 0x80000000ULL)
195 #define SIZE_4G ((uint64_t) 0x100000000ULL)
196 #define SIZE_16G ((uint64_t) 0x400000000ULL)
197 #define SIZE_32G ((uint64_t) 0x800000000ULL)
198 #define SIZE_64G ((uint64_t) 0x1000000000ULL)
199 #define SIZE_1T ((uint64_t) 0x10000000000ULL)
200
201
202 #endif // SHARE_VM_UTILITIES_GLOBALDEFINITIONS_XLC_HPP