Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/stubRoutines.cpp @ 2162:ccfcb502af3f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
Summary: Restore use of stillborn flag
Reviewed-by: acorn, alanb
author | dholmes |
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date | Tue, 25 Jan 2011 00:14:21 -0500 |
parents | f95d63e2154a |
children | 0ac769a57c64 |
rev | line source |
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0 | 1 /* |
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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 #include "precompiled.hpp" |
26 #include "asm/codeBuffer.hpp" | |
27 #include "memory/resourceArea.hpp" | |
28 #include "oops/oop.inline.hpp" | |
29 #include "runtime/interfaceSupport.hpp" | |
30 #include "runtime/sharedRuntime.hpp" | |
31 #include "runtime/stubRoutines.hpp" | |
32 #include "runtime/timer.hpp" | |
33 #include "utilities/copy.hpp" | |
34 #ifdef COMPILER2 | |
35 #include "opto/runtime.hpp" | |
36 #endif | |
0 | 37 |
38 | |
39 // Implementation of StubRoutines - for a description | |
40 // of how to extend it, see the header file. | |
41 | |
42 // Class Variables | |
43 | |
44 BufferBlob* StubRoutines::_code1 = NULL; | |
45 BufferBlob* StubRoutines::_code2 = NULL; | |
46 | |
47 address StubRoutines::_call_stub_return_address = NULL; | |
48 address StubRoutines::_call_stub_entry = NULL; | |
49 | |
50 address StubRoutines::_catch_exception_entry = NULL; | |
51 address StubRoutines::_forward_exception_entry = NULL; | |
52 address StubRoutines::_throw_AbstractMethodError_entry = NULL; | |
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53 address StubRoutines::_throw_IncompatibleClassChangeError_entry = NULL; |
0 | 54 address StubRoutines::_throw_ArithmeticException_entry = NULL; |
55 address StubRoutines::_throw_NullPointerException_entry = NULL; | |
56 address StubRoutines::_throw_NullPointerException_at_call_entry = NULL; | |
57 address StubRoutines::_throw_StackOverflowError_entry = NULL; | |
58 address StubRoutines::_handler_for_unsafe_access_entry = NULL; | |
59 jint StubRoutines::_verify_oop_count = 0; | |
60 address StubRoutines::_verify_oop_subroutine_entry = NULL; | |
61 address StubRoutines::_atomic_xchg_entry = NULL; | |
62 address StubRoutines::_atomic_xchg_ptr_entry = NULL; | |
63 address StubRoutines::_atomic_store_entry = NULL; | |
64 address StubRoutines::_atomic_store_ptr_entry = NULL; | |
65 address StubRoutines::_atomic_cmpxchg_entry = NULL; | |
66 address StubRoutines::_atomic_cmpxchg_ptr_entry = NULL; | |
67 address StubRoutines::_atomic_cmpxchg_long_entry = NULL; | |
68 address StubRoutines::_atomic_add_entry = NULL; | |
69 address StubRoutines::_atomic_add_ptr_entry = NULL; | |
70 address StubRoutines::_fence_entry = NULL; | |
71 address StubRoutines::_d2i_wrapper = NULL; | |
72 address StubRoutines::_d2l_wrapper = NULL; | |
73 | |
74 jint StubRoutines::_fpu_cntrl_wrd_std = 0; | |
75 jint StubRoutines::_fpu_cntrl_wrd_24 = 0; | |
76 jint StubRoutines::_fpu_cntrl_wrd_64 = 0; | |
77 jint StubRoutines::_fpu_cntrl_wrd_trunc = 0; | |
78 jint StubRoutines::_mxcsr_std = 0; | |
79 jint StubRoutines::_fpu_subnormal_bias1[3] = { 0, 0, 0 }; | |
80 jint StubRoutines::_fpu_subnormal_bias2[3] = { 0, 0, 0 }; | |
81 | |
82 // Compiled code entry points default values | |
83 // The dafault functions don't have separate disjoint versions. | |
84 address StubRoutines::_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); | |
85 address StubRoutines::_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); | |
86 address StubRoutines::_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); | |
87 address StubRoutines::_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); | |
88 address StubRoutines::_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); | |
89 address StubRoutines::_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); | |
90 address StubRoutines::_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); | |
91 address StubRoutines::_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); | |
92 address StubRoutines::_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); | |
93 address StubRoutines::_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); | |
94 | |
95 address StubRoutines::_arrayof_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); | |
96 address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); | |
97 address StubRoutines::_arrayof_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); | |
98 address StubRoutines::_arrayof_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); | |
99 address StubRoutines::_arrayof_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); | |
100 address StubRoutines::_arrayof_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); | |
101 address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); | |
102 address StubRoutines::_arrayof_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); | |
103 address StubRoutines::_arrayof_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); | |
104 address StubRoutines::_arrayof_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); | |
105 | |
106 address StubRoutines::_checkcast_arraycopy = NULL; | |
107 address StubRoutines::_unsafe_arraycopy = NULL; | |
108 address StubRoutines::_generic_arraycopy = NULL; | |
109 | |
1763 | 110 |
111 address StubRoutines::_jbyte_fill; | |
112 address StubRoutines::_jshort_fill; | |
113 address StubRoutines::_jint_fill; | |
114 address StubRoutines::_arrayof_jbyte_fill; | |
115 address StubRoutines::_arrayof_jshort_fill; | |
116 address StubRoutines::_arrayof_jint_fill; | |
117 | |
118 | |
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119 double (* StubRoutines::_intrinsic_log )(double) = NULL; |
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120 double (* StubRoutines::_intrinsic_log10 )(double) = NULL; |
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121 double (* StubRoutines::_intrinsic_exp )(double) = NULL; |
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122 double (* StubRoutines::_intrinsic_pow )(double, double) = NULL; |
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123 double (* StubRoutines::_intrinsic_sin )(double) = NULL; |
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124 double (* StubRoutines::_intrinsic_cos )(double) = NULL; |
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125 double (* StubRoutines::_intrinsic_tan )(double) = NULL; |
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126 |
0 | 127 // Initialization |
128 // | |
129 // Note: to break cycle with universe initialization, stubs are generated in two phases. | |
130 // The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry). | |
131 // The second phase includes all other stubs (which may depend on universe being initialized.) | |
132 | |
133 extern void StubGenerator_generate(CodeBuffer* code, bool all); // only interface to generators | |
134 | |
135 void StubRoutines::initialize1() { | |
136 if (_code1 == NULL) { | |
137 ResourceMark rm; | |
138 TraceTime timer("StubRoutines generation 1", TraceStartupTime); | |
139 _code1 = BufferBlob::create("StubRoutines (1)", code_size1); | |
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140 if (_code1 == NULL) { |
1748 | 141 vm_exit_out_of_memory(code_size1, "CodeCache: no room for StubRoutines (1)"); |
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142 } |
1748 | 143 CodeBuffer buffer(_code1); |
0 | 144 StubGenerator_generate(&buffer, false); |
145 } | |
146 } | |
147 | |
148 | |
149 #ifdef ASSERT | |
150 typedef void (*arraycopy_fn)(address src, address dst, int count); | |
151 | |
152 // simple tests of generated arraycopy functions | |
153 static void test_arraycopy_func(address func, int alignment) { | |
154 int v = 0xcc; | |
155 int v2 = 0x11; | |
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156 jlong lbuffer[8]; |
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157 jlong lbuffer2[8]; |
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158 address fbuffer = (address) lbuffer; |
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159 address fbuffer2 = (address) lbuffer2; |
0 | 160 unsigned int i; |
161 for (i = 0; i < sizeof(lbuffer); i++) { | |
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162 fbuffer[i] = v; fbuffer2[i] = v2; |
0 | 163 } |
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164 // C++ does not guarantee jlong[] array alignment to 8 bytes. |
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165 // Use middle of array to check that memory before it is not modified. |
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166 address buffer = (address) round_to((intptr_t)&lbuffer[4], BytesPerLong); |
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167 address buffer2 = (address) round_to((intptr_t)&lbuffer2[4], BytesPerLong); |
0 | 168 // do an aligned copy |
169 ((arraycopy_fn)func)(buffer, buffer2, 0); | |
170 for (i = 0; i < sizeof(lbuffer); i++) { | |
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171 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything"); |
0 | 172 } |
173 // adjust destination alignment | |
174 ((arraycopy_fn)func)(buffer, buffer2 + alignment, 0); | |
175 for (i = 0; i < sizeof(lbuffer); i++) { | |
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176 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything"); |
0 | 177 } |
178 // adjust source alignment | |
179 ((arraycopy_fn)func)(buffer + alignment, buffer2, 0); | |
180 for (i = 0; i < sizeof(lbuffer); i++) { | |
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181 assert(fbuffer[i] == v && fbuffer2[i] == v2, "shouldn't have copied anything"); |
0 | 182 } |
183 } | |
184 #endif | |
185 | |
186 | |
187 void StubRoutines::initialize2() { | |
188 if (_code2 == NULL) { | |
189 ResourceMark rm; | |
190 TraceTime timer("StubRoutines generation 2", TraceStartupTime); | |
191 _code2 = BufferBlob::create("StubRoutines (2)", code_size2); | |
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192 if (_code2 == NULL) { |
1748 | 193 vm_exit_out_of_memory(code_size2, "CodeCache: no room for StubRoutines (2)"); |
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194 } |
1748 | 195 CodeBuffer buffer(_code2); |
0 | 196 StubGenerator_generate(&buffer, true); |
197 } | |
198 | |
199 #ifdef ASSERT | |
200 | |
201 #define TEST_ARRAYCOPY(type) \ | |
202 test_arraycopy_func( type##_arraycopy(), sizeof(type)); \ | |
203 test_arraycopy_func( type##_disjoint_arraycopy(), sizeof(type)); \ | |
204 test_arraycopy_func(arrayof_##type##_arraycopy(), sizeof(HeapWord)); \ | |
205 test_arraycopy_func(arrayof_##type##_disjoint_arraycopy(), sizeof(HeapWord)) | |
206 | |
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207 // Make sure all the arraycopy stubs properly handle zero count |
0 | 208 TEST_ARRAYCOPY(jbyte); |
209 TEST_ARRAYCOPY(jshort); | |
210 TEST_ARRAYCOPY(jint); | |
211 TEST_ARRAYCOPY(jlong); | |
212 | |
213 #undef TEST_ARRAYCOPY | |
214 | |
1763 | 215 #define TEST_FILL(type) \ |
216 if (_##type##_fill != NULL) { \ | |
217 union { \ | |
218 double d; \ | |
219 type body[96]; \ | |
220 } s; \ | |
221 \ | |
222 int v = 32; \ | |
223 for (int offset = -2; offset <= 2; offset++) { \ | |
224 for (int i = 0; i < 96; i++) { \ | |
225 s.body[i] = 1; \ | |
226 } \ | |
227 type* start = s.body + 8 + offset; \ | |
228 for (int aligned = 0; aligned < 2; aligned++) { \ | |
229 if (aligned) { \ | |
230 if (((intptr_t)start) % HeapWordSize == 0) { \ | |
231 ((void (*)(type*, int, int))StubRoutines::_arrayof_##type##_fill)(start, v, 80); \ | |
232 } else { \ | |
233 continue; \ | |
234 } \ | |
235 } else { \ | |
236 ((void (*)(type*, int, int))StubRoutines::_##type##_fill)(start, v, 80); \ | |
237 } \ | |
238 for (int i = 0; i < 96; i++) { \ | |
239 if (i < (8 + offset) || i >= (88 + offset)) { \ | |
240 assert(s.body[i] == 1, "what?"); \ | |
241 } else { \ | |
242 assert(s.body[i] == 32, "what?"); \ | |
243 } \ | |
244 } \ | |
245 } \ | |
246 } \ | |
247 } \ | |
248 | |
249 TEST_FILL(jbyte); | |
250 TEST_FILL(jshort); | |
251 TEST_FILL(jint); | |
252 | |
253 #undef TEST_FILL | |
254 | |
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255 #define TEST_COPYRTN(type) \ |
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256 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_##type##s_atomic), sizeof(type)); \ |
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257 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::arrayof_conjoint_##type##s), (int)MAX2(sizeof(HeapWord), sizeof(type))) |
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258 |
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259 // Make sure all the copy runtime routines properly handle zero count |
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260 TEST_COPYRTN(jbyte); |
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261 TEST_COPYRTN(jshort); |
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262 TEST_COPYRTN(jint); |
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263 TEST_COPYRTN(jlong); |
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264 |
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265 #undef TEST_COPYRTN |
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266 |
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267 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_words), sizeof(HeapWord)); |
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268 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words), sizeof(HeapWord)); |
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269 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words_atomic), sizeof(HeapWord)); |
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270 // Aligned to BytesPerLong |
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271 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong)); |
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272 test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong)); |
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273 |
0 | 274 #endif |
275 } | |
276 | |
277 | |
278 void stubRoutines_init1() { StubRoutines::initialize1(); } | |
279 void stubRoutines_init2() { StubRoutines::initialize2(); } | |
280 | |
281 // | |
282 // Default versions of arraycopy functions | |
283 // | |
284 | |
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285 static void gen_arraycopy_barrier_pre(oop* dest, size_t count) { |
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286 assert(count != 0, "count should be non-zero"); |
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287 assert(count <= (size_t)max_intx, "count too large"); |
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288 BarrierSet* bs = Universe::heap()->barrier_set(); |
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289 assert(bs->has_write_ref_array_pre_opt(), "Must have pre-barrier opt"); |
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290 bs->write_ref_array_pre(dest, (int)count); |
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291 } |
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292 |
0 | 293 static void gen_arraycopy_barrier(oop* dest, size_t count) { |
294 assert(count != 0, "count should be non-zero"); | |
295 BarrierSet* bs = Universe::heap()->barrier_set(); | |
296 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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297 bs->write_ref_array((HeapWord*)dest, count); |
0 | 298 } |
299 | |
300 JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count)) | |
301 #ifndef PRODUCT | |
302 SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy | |
303 #endif // !PRODUCT | |
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304 Copy::conjoint_jbytes_atomic(src, dest, count); |
0 | 305 JRT_END |
306 | |
307 JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count)) | |
308 #ifndef PRODUCT | |
309 SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy | |
310 #endif // !PRODUCT | |
311 Copy::conjoint_jshorts_atomic(src, dest, count); | |
312 JRT_END | |
313 | |
314 JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count)) | |
315 #ifndef PRODUCT | |
316 SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy | |
317 #endif // !PRODUCT | |
318 Copy::conjoint_jints_atomic(src, dest, count); | |
319 JRT_END | |
320 | |
321 JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count)) | |
322 #ifndef PRODUCT | |
323 SharedRuntime::_jlong_array_copy_ctr++; // Slow-path long/double array copy | |
324 #endif // !PRODUCT | |
325 Copy::conjoint_jlongs_atomic(src, dest, count); | |
326 JRT_END | |
327 | |
328 JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count)) | |
329 #ifndef PRODUCT | |
330 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy | |
331 #endif // !PRODUCT | |
332 assert(count != 0, "count should be non-zero"); | |
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333 gen_arraycopy_barrier_pre(dest, count); |
0 | 334 Copy::conjoint_oops_atomic(src, dest, count); |
335 gen_arraycopy_barrier(dest, count); | |
336 JRT_END | |
337 | |
338 JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count)) | |
339 #ifndef PRODUCT | |
340 SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy | |
341 #endif // !PRODUCT | |
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342 Copy::arrayof_conjoint_jbytes(src, dest, count); |
0 | 343 JRT_END |
344 | |
345 JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count)) | |
346 #ifndef PRODUCT | |
347 SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy | |
348 #endif // !PRODUCT | |
349 Copy::arrayof_conjoint_jshorts(src, dest, count); | |
350 JRT_END | |
351 | |
352 JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count)) | |
353 #ifndef PRODUCT | |
354 SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy | |
355 #endif // !PRODUCT | |
356 Copy::arrayof_conjoint_jints(src, dest, count); | |
357 JRT_END | |
358 | |
359 JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count)) | |
360 #ifndef PRODUCT | |
361 SharedRuntime::_jlong_array_copy_ctr++; // Slow-path int/float array copy | |
362 #endif // !PRODUCT | |
363 Copy::arrayof_conjoint_jlongs(src, dest, count); | |
364 JRT_END | |
365 | |
366 JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count)) | |
367 #ifndef PRODUCT | |
368 SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy | |
369 #endif // !PRODUCT | |
370 assert(count != 0, "count should be non-zero"); | |
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371 gen_arraycopy_barrier_pre((oop *) dest, count); |
0 | 372 Copy::arrayof_conjoint_oops(src, dest, count); |
373 gen_arraycopy_barrier((oop *) dest, count); | |
374 JRT_END | |
1763 | 375 |
376 | |
377 address StubRoutines::select_fill_function(BasicType t, bool aligned, const char* &name) { | |
378 #define RETURN_STUB(xxx_fill) { \ | |
379 name = #xxx_fill; \ | |
380 return StubRoutines::xxx_fill(); } | |
381 | |
382 switch (t) { | |
383 case T_BYTE: | |
384 case T_BOOLEAN: | |
385 if (!aligned) RETURN_STUB(jbyte_fill); | |
386 RETURN_STUB(arrayof_jbyte_fill); | |
387 case T_CHAR: | |
388 case T_SHORT: | |
389 if (!aligned) RETURN_STUB(jshort_fill); | |
390 RETURN_STUB(arrayof_jshort_fill); | |
391 case T_INT: | |
392 case T_FLOAT: | |
393 if (!aligned) RETURN_STUB(jint_fill); | |
394 RETURN_STUB(arrayof_jint_fill); | |
395 case T_DOUBLE: | |
396 case T_LONG: | |
397 case T_ARRAY: | |
398 case T_OBJECT: | |
399 case T_NARROWOOP: | |
400 case T_ADDRESS: | |
401 // Currently unsupported | |
402 return NULL; | |
403 | |
404 default: | |
405 ShouldNotReachHere(); | |
406 return NULL; | |
407 } | |
408 | |
409 #undef RETURN_STUB | |
410 } |