Tue, 01 Feb 2011 11:23:19 -0500
6588413: Use -fvisibility=hidden for gcc compiles
Summary: Add option for gcc 4 and above, define JNIEXPORT and JNIIMPORT to visibility=default, add for jio_snprintf and others since -fvisibility=hidden overrides --version-script definitions.
Reviewed-by: kamg, never
1 /*
2 * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP
28 #include "orderAccess_solaris_sparc.inline.hpp"
29 #include "runtime/atomic.hpp"
30 #include "runtime/os.hpp"
31 #include "vm_version_sparc.hpp"
33 // Implementation of class atomic
35 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
36 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
37 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
38 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
39 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
41 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
42 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
43 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
44 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
45 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
47 inline void Atomic::inc (volatile jint* dest) { (void)add (1, dest); }
48 inline void Atomic::inc_ptr(volatile intptr_t* dest) { (void)add_ptr(1, dest); }
49 inline void Atomic::inc_ptr(volatile void* dest) { (void)add_ptr(1, dest); }
51 inline void Atomic::dec (volatile jint* dest) { (void)add (-1, dest); }
52 inline void Atomic::dec_ptr(volatile intptr_t* dest) { (void)add_ptr(-1, dest); }
53 inline void Atomic::dec_ptr(volatile void* dest) { (void)add_ptr(-1, dest); }
56 #ifdef _LP64
58 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; }
59 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; }
60 inline jlong Atomic::load(volatile jlong* src) { return *src; }
62 #else
64 extern "C" void _Atomic_move_long_v8(volatile jlong* src, volatile jlong* dst);
65 extern "C" void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst);
67 inline void Atomic_move_long(volatile jlong* src, volatile jlong* dst) {
68 #ifdef COMPILER2
69 // Compiler2 does not support v8, it is used only for v9.
70 assert (VM_Version::v9_instructions_work(), "only supported on v9");
71 _Atomic_move_long_v9(src, dst);
72 #else
73 // The branch is cheaper then emulated LDD.
74 if (VM_Version::v9_instructions_work()) {
75 _Atomic_move_long_v9(src, dst);
76 } else {
77 _Atomic_move_long_v8(src, dst);
78 }
79 #endif
80 }
82 inline jlong Atomic::load(volatile jlong* src) {
83 volatile jlong dest;
84 Atomic_move_long(src, &dest);
85 return dest;
86 }
88 inline void Atomic::store(jlong store_value, jlong* dest) {
89 Atomic_move_long((volatile jlong*)&store_value, (volatile jlong*)dest);
90 }
92 inline void Atomic::store(jlong store_value, volatile jlong* dest) {
93 Atomic_move_long((volatile jlong*)&store_value, dest);
94 }
96 #endif
98 #ifdef _GNU_SOURCE
100 inline jint Atomic::add (jint add_value, volatile jint* dest) {
101 intptr_t rv;
102 __asm__ volatile(
103 "1: \n\t"
104 " ld [%2], %%o2\n\t"
105 " add %1, %%o2, %%o3\n\t"
106 " cas [%2], %%o2, %%o3\n\t"
107 " cmp %%o2, %%o3\n\t"
108 " bne 1b\n\t"
109 " nop\n\t"
110 " add %1, %%o2, %0\n\t"
111 : "=r" (rv)
112 : "r" (add_value), "r" (dest)
113 : "memory", "o2", "o3");
114 return rv;
115 }
117 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
118 intptr_t rv;
119 #ifdef _LP64
120 __asm__ volatile(
121 "1: \n\t"
122 " ldx [%2], %%o2\n\t"
123 " add %0, %%o2, %%o3\n\t"
124 " casx [%2], %%o2, %%o3\n\t"
125 " cmp %%o2, %%o3\n\t"
126 " bne %%xcc, 1b\n\t"
127 " nop\n\t"
128 " add %0, %%o2, %0\n\t"
129 : "=r" (rv)
130 : "r" (add_value), "r" (dest)
131 : "memory", "o2", "o3");
132 #else //_LP64
133 __asm__ volatile(
134 "1: \n\t"
135 " ld [%2], %%o2\n\t"
136 " add %1, %%o2, %%o3\n\t"
137 " cas [%2], %%o2, %%o3\n\t"
138 " cmp %%o2, %%o3\n\t"
139 " bne 1b\n\t"
140 " nop\n\t"
141 " add %1, %%o2, %0\n\t"
142 : "=r" (rv)
143 : "r" (add_value), "r" (dest)
144 : "memory", "o2", "o3");
145 #endif // _LP64
146 return rv;
147 }
149 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
150 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest);
151 }
154 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
155 intptr_t rv = exchange_value;
156 __asm__ volatile(
157 " swap [%2],%1\n\t"
158 : "=r" (rv)
159 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest)
160 : "memory");
161 return rv;
162 }
164 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
165 intptr_t rv = exchange_value;
166 #ifdef _LP64
167 __asm__ volatile(
168 "1:\n\t"
169 " mov %1, %%o3\n\t"
170 " ldx [%2], %%o2\n\t"
171 " casx [%2], %%o2, %%o3\n\t"
172 " cmp %%o2, %%o3\n\t"
173 " bne %%xcc, 1b\n\t"
174 " nop\n\t"
175 " mov %%o2, %0\n\t"
176 : "=r" (rv)
177 : "r" (exchange_value), "r" (dest)
178 : "memory", "o2", "o3");
179 #else //_LP64
180 __asm__ volatile(
181 "swap [%2],%1\n\t"
182 : "=r" (rv)
183 : "0" (exchange_value) /* we use same register as for return value */, "r" (dest)
184 : "memory");
185 #endif // _LP64
186 return rv;
187 }
189 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
190 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
191 }
194 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) {
195 jint rv;
196 __asm__ volatile(
197 " cas [%2], %3, %0"
198 : "=r" (rv)
199 : "0" (exchange_value), "r" (dest), "r" (compare_value)
200 : "memory");
201 return rv;
202 }
204 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
205 #ifdef _LP64
206 jlong rv;
207 __asm__ volatile(
208 " casx [%2], %3, %0"
209 : "=r" (rv)
210 : "0" (exchange_value), "r" (dest), "r" (compare_value)
211 : "memory");
212 return rv;
213 #else //_LP64
214 assert(VM_Version::v9_instructions_work(), "cas only supported on v9");
215 volatile jlong_accessor evl, cvl, rv;
216 evl.long_value = exchange_value;
217 cvl.long_value = compare_value;
219 __asm__ volatile(
220 " sllx %2, 32, %2\n\t"
221 " srl %3, 0, %3\n\t"
222 " or %2, %3, %2\n\t"
223 " sllx %5, 32, %5\n\t"
224 " srl %6, 0, %6\n\t"
225 " or %5, %6, %5\n\t"
226 " casx [%4], %5, %2\n\t"
227 " srl %2, 0, %1\n\t"
228 " srlx %2, 32, %0\n\t"
229 : "=r" (rv.words[0]), "=r" (rv.words[1])
230 : "r" (evl.words[0]), "r" (evl.words[1]), "r" (dest), "r" (cvl.words[0]), "r" (cvl.words[1])
231 : "memory");
233 return rv.long_value;
234 #endif //_LP64
235 }
237 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
238 intptr_t rv;
239 #ifdef _LP64
240 __asm__ volatile(
241 " casx [%2], %3, %0"
242 : "=r" (rv)
243 : "0" (exchange_value), "r" (dest), "r" (compare_value)
244 : "memory");
245 #else //_LP64
246 __asm__ volatile(
247 " cas [%2], %3, %0"
248 : "=r" (rv)
249 : "0" (exchange_value), "r" (dest), "r" (compare_value)
250 : "memory");
251 #endif // _LP64
252 return rv;
253 }
255 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
256 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value);
257 }
259 #else // _GNU_SOURCE
261 #if defined(COMPILER2) || defined(_LP64)
263 // This is the interface to the atomic instructions in solaris_sparc.il.
264 // It's very messy because we need to support v8 and these instructions
265 // are illegal there. When sparc v8 is dropped, we can drop out lots of
266 // this code. Also compiler2 does not support v8 so the conditional code
267 // omits the instruction set check.
269 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest);
270 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest);
272 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value);
273 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
274 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value);
276 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest);
277 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest);
280 inline jint Atomic::add (jint add_value, volatile jint* dest) {
281 return _Atomic_add32(add_value, dest);
282 }
284 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
285 #ifdef _LP64
286 return _Atomic_add64(add_value, dest);
287 #else //_LP64
288 return _Atomic_add32(add_value, dest);
289 #endif // _LP64
290 }
292 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
293 return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest);
294 }
297 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
298 return _Atomic_swap32(exchange_value, dest);
299 }
301 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
302 #ifdef _LP64
303 return _Atomic_swap64(exchange_value, dest);
304 #else // _LP64
305 return _Atomic_swap32(exchange_value, dest);
306 #endif // _LP64
307 }
309 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
310 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
311 }
314 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) {
315 return _Atomic_cas32(exchange_value, dest, compare_value);
316 }
318 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
319 #ifdef _LP64
320 // Return 64 bit value in %o0
321 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value);
322 #else // _LP64
323 assert (VM_Version::v9_instructions_work(), "only supported on v9");
324 // Return 64 bit value in %o0,%o1 by hand
325 return _Atomic_casl(exchange_value, dest, compare_value);
326 #endif // _LP64
327 }
329 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
330 #ifdef _LP64
331 return _Atomic_cas64(exchange_value, dest, compare_value);
332 #else // _LP64
333 return _Atomic_cas32(exchange_value, dest, compare_value);
334 #endif // _LP64
335 }
337 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
338 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value);
339 }
342 #else // _LP64 || COMPILER2
345 // 32-bit compiler1 only
347 inline jint Atomic::add (jint add_value, volatile jint* dest) {
348 return (*os::atomic_add_func)(add_value, dest);
349 }
351 inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
352 return (intptr_t)add((jint)add_value, (volatile jint*)dest);
353 }
355 inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
356 return (void*)add((jint)add_value, (volatile jint*)dest);
357 }
360 inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
361 return (*os::atomic_xchg_func)(exchange_value, dest);
362 }
364 inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
365 return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);
366 }
368 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
369 return (void*)xchg((jint)exchange_value, (volatile jint*)dest);
370 }
373 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) {
374 return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value);
375 }
377 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
378 return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value);
379 }
381 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
382 return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
383 }
385 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
386 return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
387 }
389 #endif // _LP64 || COMPILER2
391 #endif // _GNU_SOURCE
393 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_INLINE_HPP