Mercurial > hg > graal-compiler
annotate src/share/vm/libadt/port.hpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
author | johnc |
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date | Mon, 19 Dec 2011 10:02:05 -0800 |
parents | f95d63e2154a |
children | 9758d9f36299 bdd155477289 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_LIBADT_PORT_HPP |
26 #define SHARE_VM_LIBADT_PORT_HPP | |
27 | |
28 #include "utilities/top.hpp" | |
29 | |
0 | 30 // Typedefs for portable compiling |
31 | |
32 #if defined(__GNUC__) | |
33 | |
34 #define INTERFACE #pragma interface | |
35 #define IMPLEMENTATION #pragma implementation | |
36 //INTERFACE | |
37 #include <stddef.h> | |
38 #include <stdlib.h> | |
39 #include <string.h> | |
40 | |
41 // Access to the C++ class virtual function pointer | |
42 // Put the class in the macro | |
43 typedef void *VPTR; | |
44 // G++ puts it at the end of the base class | |
45 #define ACCESS_VPTR(class) VPTR&vptr(){return*(VPTR*)((char*)this+sizeof(class)-sizeof(void*));} | |
46 | |
47 #elif defined(__TURBOC__) | |
48 | |
49 #include <mem.h> | |
50 #include <string.h> | |
51 extern "C" int stricmp(const char *, const char *); | |
52 inline void bcopy(const void *s, void *d, int l) { memmove(d,s,l); } | |
53 inline void bzero(void *p, int l) { memset(p,0,l); } | |
54 inline int bcmp(const void *s, const void *d, int l) { return memcmp(s,d,l); } | |
55 inline int min( int a, int b) { return a < b ? a : b; } | |
56 inline int max( int a, int b) { return a > b ? a : b; } | |
57 //strcasecmp moved to globalDefinitions_visCPP.hpp | |
58 //inline int strcasecmp(const char *s1, const char *s2) { return stricmp(s1,s2); } | |
59 inline long abs( long x ) { return x < 0 ? -x : x; } | |
60 // Access to the C++ class virtual function pointer | |
61 // Put the class in the macro | |
62 typedef void near *VPTR; | |
63 // BorlandC puts it up front | |
64 #define ACCESS_VPTR(class) VPTR&vptr(){return*(VPTR*)this;} | |
65 | |
66 #elif defined(__hpux) | |
67 | |
68 #define INTERFACE | |
69 #define IMPLEMENTATION | |
70 #define signed | |
71 #include <strings.h> | |
72 #include <stdlib.h> | |
73 inline long min( long a, long b) { return a < b ? a : b; } | |
74 inline long max( long a, long b) { return a > b ? a : b; } | |
75 inline int min( int a, int b) { return a < b ? a : b; } | |
76 inline int max( int a, int b) { return a > b ? a : b; } | |
77 inline long abs( long x ) { return x < 0 ? -x : x; } | |
78 | |
79 #elif defined(__MOTO__) | |
80 // Motorola's mcc | |
81 #define INTERFACE | |
82 #define IMPLEMENTATION | |
83 #include <stdlib.h> | |
84 #include <memory.h> | |
85 inline int min( int a, int b) { return a < b ? a : b; } | |
86 inline int max( int a, int b) { return a > b ? a : b; } | |
87 | |
88 #elif defined(_AIX) | |
89 // IBM's xlC compiler | |
90 #define INTERFACE | |
91 #define IMPLEMENTATION | |
92 #include <stdlib.h> | |
93 #include <memory.h> | |
94 inline int min( int a, int b) { return a < b ? a : b; } | |
95 inline int max( int a, int b) { return a > b ? a : b; } | |
96 | |
97 #elif defined(_MSC_VER) | |
98 // Microsoft Visual C++ | |
99 //#define INTERFACE | |
100 #define IMPLEMENTATION | |
101 #include <stdlib.h> | |
102 #undef small | |
103 //strcasecmp moved to globalDefinitions_visCPP.hpp | |
104 //inline int strcasecmp(const char *s1, const char *s2) { return stricmp(s1,s2); } | |
105 | |
106 | |
107 #elif defined(SPARC_WORKS) | |
108 | |
109 #define INTERFACE | |
110 #define IMPLEMENTATION | |
111 | |
112 #include <stddef.h> | |
113 #include <stdlib.h> | |
114 #include <string.h> | |
115 | |
116 #elif defined(SOLARIS) | |
117 | |
118 #define INTERFACE | |
119 #define IMPLEMENTATION | |
120 | |
121 #include <stddef.h> | |
122 #include <stdlib.h> | |
123 #include <string.h> | |
124 | |
125 | |
126 #elif defined(__TANDEM) | |
127 | |
128 // This case is for the Tandem Business Unit of Compaq Computer Corporation. | |
129 // The Tandem case must precede the AT&T case, | |
130 // because the Tandem c89 compiler also defines __cplusplus. | |
131 | |
132 #include "port_tandem.hpp" | |
133 | |
134 #elif defined(__cplusplus) | |
135 // AT&Ts cfront | |
136 #define INTERFACE | |
137 #define IMPLEMENTATION | |
138 #include <unistd.h> | |
139 #define signed | |
140 // #include <bstring.h> | |
141 inline int min( int a, int b) { return a < b ? a : b; } | |
142 inline int max( int a, int b) { return a > b ? a : b; } | |
143 | |
144 #else // All other machines | |
145 | |
146 #define signed | |
147 extern "C" void bcopy(void *b1, void *b2, int len); | |
148 inline int min( int a, int b) { return a < b ? a : b; } | |
149 inline int max( int a, int b) { return a > b ? a : b; } | |
150 | |
151 #endif | |
152 | |
153 //----------------------------------------------------------------------------- | |
154 // Safer memory allocations | |
155 #ifdef SAFE_MEMORY | |
156 #define malloc(size) safe_malloc(__FILE__,__LINE__,size) | |
157 #define free(ptr) safe_free(__FILE__,__LINE__,ptr) | |
158 #define realloc(ptr,size) safe_realloc(__FILE__,__LINE__,ptr,size) | |
159 #define calloc(nitems,size) safe_calloc(__FILE__,__LINE__,nitems,size) | |
160 #define strdup(ptr) safe_strdup(__FILE__,__LINE__,ptr) | |
161 extern void *safe_malloc (const char *file, unsigned line, unsigned size); | |
162 extern void safe_free (const char *file, unsigned line, void *ptr); | |
163 extern void *safe_calloc (const char *file, unsigned line, unsigned nitems, unsigned size); | |
164 extern void *safe_realloc(const char *file, unsigned line, void *ptr, unsigned size); | |
165 extern char *safe_strdup (const char *file, unsigned line, const char *src); | |
166 inline void *operator new( size_t size ) { return malloc(size); } | |
167 inline void operator delete( void *ptr ) { free(ptr); } | |
168 #endif | |
169 | |
170 //----------------------------------------------------------------------------- | |
171 // And now, the bit-size-specified integer sizes | |
172 typedef signed char int8; | |
173 typedef unsigned char uint8; | |
174 typedef unsigned char byte; | |
175 | |
176 // All uses of *int16 changed to 32-bit to speed up compiler on Intel | |
177 //typedef signed short int16; // Exactly 16bits signed | |
178 //typedef unsigned short uint16; // Exactly 16bits unsigned | |
179 //const unsigned int min_uint16 = 0x0000; // smallest uint16 | |
180 //const unsigned int max_uint16 = 0xFFFF; // largest uint16 | |
181 | |
182 typedef unsigned int uint; // When you need a fast >=16bit unsigned value | |
183 /*typedef int int; */ // When you need a fast >=16bit value | |
184 const unsigned int max_uint = (uint)-1; | |
185 typedef int32_t int32; // Exactly 32bits signed | |
186 typedef uint32_t uint32; // Exactly 32bits unsigned | |
187 | |
188 // Bit-sized floating point and long thingies | |
189 #ifndef __TANDEM | |
190 // Do not define these for Tandem, because they conflict with typedefs in softieee.h. | |
191 typedef float float32; // 32-bit float | |
192 typedef double float64; // 64-bit float | |
193 #endif // __TANDEM | |
194 | |
195 typedef jlong int64; // Java long for my 64-bit type | |
196 typedef julong uint64; // Java long for my 64-bit type | |
197 | |
198 //----------------------------------------------------------------------------- | |
199 // Nice constants | |
200 uint32 gcd( uint32 x, uint32 y ); | |
201 int ff1( uint32 mask ); | |
202 int fh1( uint32 mask ); | |
203 uint32 rotate32( uint32 x, int32 cnt ); | |
204 | |
205 | |
206 //----------------------------------------------------------------------------- | |
207 extern uint32 heap_totalmem; // Current total memory allocation | |
208 extern uint32 heap_highwater; // Highwater mark to date for memory usage | |
209 | |
1972 | 210 #endif // SHARE_VM_LIBADT_PORT_HPP |