Mercurial > hg > graal-compiler
annotate src/share/vm/utilities/globalDefinitions_sparcWorks.hpp @ 1711:a6bff45449bc
6973570: OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging
Summary: volatile store to static variable removed in favour of a volatile store to stack to avoid excessive cache coherency traffic; verified that the volatile store is not elided by any of our current compilers.
Reviewed-by: dholmes, dice, jcoomes, kvn
author | ysr |
---|---|
date | Tue, 10 Aug 2010 14:53:35 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
579
diff
changeset
|
2 * Copyright (c) 1997, 2009, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
579
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
579
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
579
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 // This file holds compiler-dependent includes, | |
26 // globally used constants & types, class (forward) | |
27 // declarations and a few frequently used utility functions. | |
28 | |
29 | |
30 # include <ctype.h> | |
31 # include <dirent.h> | |
32 # include <string.h> | |
33 # include <strings.h> // for bsd'isms | |
34 # include <stdarg.h> | |
35 # include <stddef.h> // for offsetof | |
36 # include <stdio.h> | |
37 # include <stdlib.h> | |
38 # include <wchar.h> | |
39 # include <stdarg.h> | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
40 #ifdef SOLARIS |
0 | 41 # include <ieeefp.h> |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
42 #endif |
0 | 43 # include <math.h> |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
44 #ifdef LINUX |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
45 #ifndef FP_PZERO |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
46 // Linux doesn't have positive/negative zero |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
47 #define FP_PZERO FP_ZERO |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
48 #endif |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
49 #ifndef fpclass |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
50 #define fpclass fpclassify |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
51 #endif |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
52 #endif |
0 | 53 # include <time.h> |
54 # include <fcntl.h> | |
55 # include <dlfcn.h> | |
56 # include <pthread.h> | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
57 #ifdef SOLARIS |
0 | 58 # include <thread.h> |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
59 #endif |
0 | 60 # include <limits.h> |
61 # include <errno.h> | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
62 #ifdef SOLARIS |
0 | 63 # include <sys/trap.h> |
64 # include <sys/regset.h> | |
65 # include <sys/procset.h> | |
66 # include <ucontext.h> | |
67 # include <setjmp.h> | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
68 #endif |
0 | 69 # ifdef SOLARIS_MUTATOR_LIBTHREAD |
70 # include <sys/procfs.h> | |
71 # endif | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
72 #ifdef LINUX |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
73 # include <inttypes.h> |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
74 # include <signal.h> |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
75 # include <ucontext.h> |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
76 # include <sys/time.h> |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
77 #endif |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
78 |
0 | 79 |
80 // 4810578: varargs unsafe on 32-bit integer/64-bit pointer architectures | |
81 // When __cplusplus is defined, NULL is defined as 0 (32-bit constant) in | |
82 // system header files. On 32-bit architectures, there is no problem. | |
83 // On 64-bit architectures, defining NULL as a 32-bit constant can cause | |
84 // problems with varargs functions: C++ integral promotion rules say for | |
85 // varargs, we pass the argument 0 as an int. So, if NULL was passed to a | |
86 // varargs function it will remain 32-bits. Depending on the calling | |
87 // convention of the machine, if the argument is passed on the stack then | |
88 // only 32-bits of the "NULL" pointer may be initialized to zero. The | |
89 // other 32-bits will be garbage. If the varargs function is expecting a | |
90 // pointer when it extracts the argument, then we have a problem. | |
91 // | |
92 // Solution: For 64-bit architectures, redefine NULL as 64-bit constant 0. | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
93 // |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
94 // Note: this fix doesn't work well on Linux because NULL will be overwritten |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
95 // whenever a system header file is included. Linux handles NULL correctly |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
96 // through a special type '__null'. |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
97 #ifdef SOLARIS |
0 | 98 #ifdef _LP64 |
99 #undef NULL | |
100 #define NULL 0L | |
101 #else | |
102 #ifndef NULL | |
103 #define NULL 0 | |
104 #endif | |
105 #endif | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
106 #endif |
0 | 107 |
108 // NULL vs NULL_WORD: | |
109 // On Linux NULL is defined as a special type '__null'. Assigning __null to | |
110 // integer variable will cause gcc warning. Use NULL_WORD in places where a | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
111 // pointer is stored as integer value. On some platforms, sizeof(intptr_t) > |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
112 // sizeof(void*), so here we want something which is integer type, but has the |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
113 // same size as a pointer. |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
114 #ifdef LINUX |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
115 #ifdef _LP64 |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
116 #define NULL_WORD 0L |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
117 #else |
512
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
196
diff
changeset
|
118 // Cast 0 to intptr_t rather than int32_t since they are not the same type |
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
196
diff
changeset
|
119 // on some platforms. |
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
196
diff
changeset
|
120 #define NULL_WORD ((intptr_t)0) |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
121 #endif |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
122 #else |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
123 #define NULL_WORD NULL |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
124 #endif |
0 | 125 |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
126 #ifndef LINUX |
0 | 127 // Compiler-specific primitive types |
128 typedef unsigned short uint16_t; | |
129 #ifndef _UINT32_T | |
130 #define _UINT32_T | |
131 typedef unsigned int uint32_t; | |
132 #endif | |
133 #if !defined(_SYS_INT_TYPES_H) | |
134 #ifndef _UINT64_T | |
135 #define _UINT64_T | |
136 typedef unsigned long long uint64_t; | |
137 #endif | |
138 // %%%% how to access definition of intptr_t portably in 5.5 onward? | |
139 typedef int intptr_t; | |
140 typedef unsigned int uintptr_t; | |
141 // If this gets an error, figure out a symbol XXX that implies the | |
142 // prior definition of intptr_t, and add "&& !defined(XXX)" above. | |
143 #endif | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
144 #endif |
0 | 145 |
146 // Additional Java basic types | |
147 | |
148 typedef unsigned char jubyte; | |
149 typedef unsigned short jushort; | |
150 typedef unsigned int juint; | |
151 typedef unsigned long long julong; | |
152 | |
153 //---------------------------------------------------------------------------------------------------- | |
154 // Special (possibly not-portable) casts | |
155 // Cast floats into same-size integers and vice-versa w/o changing bit-pattern | |
156 | |
157 inline jint jint_cast (jfloat x) { return *(jint* )&x; } | |
158 inline jlong jlong_cast (jdouble x) { return *(jlong* )&x; } | |
159 | |
160 inline jfloat jfloat_cast (jint x) { return *(jfloat* )&x; } | |
161 inline jdouble jdouble_cast(jlong x) { return *(jdouble*)&x; } | |
162 | |
163 //---------------------------------------------------------------------------------------------------- | |
164 // Constant for jlong (specifying an long long constant is C++ compiler specific) | |
165 | |
166 // Build a 64bit integer constant | |
167 #define CONST64(x) (x ## LL) | |
168 #define UCONST64(x) (x ## ULL) | |
169 | |
170 const jlong min_jlong = CONST64(0x8000000000000000); | |
171 const jlong max_jlong = CONST64(0x7fffffffffffffff); | |
172 | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
173 #ifdef SOLARIS |
0 | 174 //---------------------------------------------------------------------------------------------------- |
175 // ANSI C++ fixes | |
176 // NOTE:In the ANSI committee's continuing attempt to make each version | |
177 // of C++ incompatible with the previous version, you can no longer cast | |
178 // pointers to functions without specifying linkage unless you want to get | |
179 // warnings. | |
180 // | |
181 // This also means that pointers to functions can no longer be "hidden" | |
182 // in opaque types like void * because at the invokation point warnings | |
183 // will be generated. While this makes perfect sense from a type safety | |
184 // point of view it causes a lot of warnings on old code using C header | |
185 // files. Here are some typedefs to make the job of silencing warnings | |
186 // a bit easier. | |
187 // | |
188 // The final kick in the teeth is that you can only have extern "C" linkage | |
189 // specified at file scope. So these typedefs are here rather than in the | |
190 // .hpp for the class (os:Solaris usually) that needs them. | |
191 | |
192 extern "C" { | |
193 typedef int (*int_fnP_thread_t_iP_uP_stack_tP_gregset_t)(thread_t, int*, unsigned *, stack_t*, gregset_t); | |
194 typedef int (*int_fnP_thread_t_i_gregset_t)(thread_t, int, gregset_t); | |
195 typedef int (*int_fnP_thread_t_i)(thread_t, int); | |
196 typedef int (*int_fnP_thread_t)(thread_t); | |
197 | |
198 typedef int (*int_fnP_cond_tP_mutex_tP_timestruc_tP)(cond_t *cv, mutex_t *mx, timestruc_t *abst); | |
199 typedef int (*int_fnP_cond_tP_mutex_tP)(cond_t *cv, mutex_t *mx); | |
200 | |
201 // typedef for missing API in libc | |
202 typedef int (*int_fnP_mutex_tP_i_vP)(mutex_t *, int, void *); | |
203 typedef int (*int_fnP_mutex_tP)(mutex_t *); | |
204 typedef int (*int_fnP_cond_tP_i_vP)(cond_t *cv, int scope, void *arg); | |
205 typedef int (*int_fnP_cond_tP)(cond_t *cv); | |
206 }; | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
207 #endif |
0 | 208 |
209 //---------------------------------------------------------------------------------------------------- | |
210 // Debugging | |
211 | |
212 #define DEBUG_EXCEPTION ::abort(); | |
213 | |
214 extern "C" void breakpoint(); | |
215 #define BREAKPOINT ::breakpoint() | |
216 | |
217 // checking for nanness | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
218 #ifdef SOLARIS |
0 | 219 #ifdef SPARC |
220 inline int g_isnan(float f) { return isnanf(f); } | |
221 #else | |
222 // isnanf() broken on Intel Solaris use isnand() | |
223 inline int g_isnan(float f) { return isnand(f); } | |
224 #endif | |
225 | |
226 inline int g_isnan(double f) { return isnand(f); } | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
227 #elif LINUX |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
228 inline int g_isnan(float f) { return isnanf(f); } |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
229 inline int g_isnan(double f) { return isnan(f); } |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
230 #else |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
231 #error "missing platform-specific definition here" |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
232 #endif |
0 | 233 |
234 // Checking for finiteness | |
235 | |
236 inline int g_isfinite(jfloat f) { return finite(f); } | |
237 inline int g_isfinite(jdouble f) { return finite(f); } | |
238 | |
239 | |
240 // Wide characters | |
241 | |
242 inline int wcslen(const jchar* x) { return wcslen((const wchar_t*)x); } | |
243 | |
244 | |
245 // Misc | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
246 // NOTE: This one leads to an infinite recursion on Linux |
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
247 #ifndef LINUX |
0 | 248 int local_vsnprintf(char* buf, size_t count, const char* fmt, va_list argptr); |
249 #define vsnprintf local_vsnprintf | |
50
485d403e94e1
6452081: 3/4 Allow for Linux builds with Sun Studio Linux compilers
dcubed
parents:
0
diff
changeset
|
250 #endif |
0 | 251 |
252 // Portability macros | |
253 #define PRAGMA_INTERFACE | |
254 #define PRAGMA_IMPLEMENTATION | |
255 #define PRAGMA_IMPLEMENTATION_(arg) | |
256 #define VALUE_OBJ_CLASS_SPEC : public _ValueObj | |
257 | |
258 // Formatting. | |
259 #ifdef _LP64 | |
260 #define FORMAT64_MODIFIER "l" | |
261 #else // !_LP64 | |
262 #define FORMAT64_MODIFIER "ll" | |
263 #endif // _LP64 | |
264 | |
265 #define offset_of(klass,field) offsetof(klass,field) |