1 /*
2 * Copyright (c) 1997, 2015, 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 */
24
25 #include "precompiled.hpp"
26 #include "asm/macroAssembler.hpp"
27 #include "interpreter/bytecodeHistogram.hpp"
28 #include "interpreter/interpreter.hpp"
29 #include "interpreter/interpreterGenerator.hpp"
30 #include "interpreter/interpreterRuntime.hpp"
31 #include "interpreter/interp_masm.hpp"
32 #include "interpreter/templateTable.hpp"
33 #include "oops/arrayOop.hpp"
34 #include "oops/methodData.hpp"
35 #include "oops/method.hpp"
36 #include "oops/oop.inline.hpp"
37 #include "prims/jvmtiExport.hpp"
38 #include "prims/jvmtiThreadState.hpp"
39 #include "runtime/arguments.hpp"
40 #include "runtime/deoptimization.hpp"
41 #include "runtime/frame.inline.hpp"
42 #include "runtime/sharedRuntime.hpp"
43 #include "runtime/stubRoutines.hpp"
44 #include "runtime/synchronizer.hpp"
45 #include "runtime/timer.hpp"
46 #include "runtime/vframeArray.hpp"
47 #include "utilities/debug.hpp"
48 #include "utilities/macros.hpp"
49
50 #define __ _masm->
51
52
53 #ifndef CC_INTERP
54
55 /**
56 * Method entry for static native methods:
57 * int java.util.zip.CRC32.update(int crc, int b)
58 */
59 address InterpreterGenerator::generate_CRC32_update_entry() {
60 if (UseCRC32Intrinsics) {
61 address entry = __ pc();
62
63 // rbx: Method*
64 // rsi: senderSP must preserved for slow path, set SP to it on fast path
65 // rdx: scratch
66 // rdi: scratch
67
68 Label slow_path;
69 // If we need a safepoint check, generate full interpreter entry.
70 ExternalAddress state(SafepointSynchronize::address_of_state());
71 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
72 SafepointSynchronize::_not_synchronized);
73 __ jcc(Assembler::notEqual, slow_path);
74
75 // We don't generate local frame and don't align stack because
76 // we call stub code and there is no safepoint on this path.
77
78 // Load parameters
79 const Register crc = rax; // crc
80 const Register val = rdx; // source java byte value
81 const Register tbl = rdi; // scratch
82
83 // Arguments are reversed on java expression stack
84 __ movl(val, Address(rsp, wordSize)); // byte value
85 __ movl(crc, Address(rsp, 2*wordSize)); // Initial CRC
86
87 __ lea(tbl, ExternalAddress(StubRoutines::crc_table_addr()));
88 __ notl(crc); // ~crc
89 __ update_byte_crc32(crc, val, tbl);
90 __ notl(crc); // ~crc
91 // result in rax
92
93 // _areturn
94 __ pop(rdi); // get return address
95 __ mov(rsp, rsi); // set sp to sender sp
96 __ jmp(rdi);
97
98 // generate a vanilla native entry as the slow path
99 __ bind(slow_path);
100 __ jump_to_entry(Interpreter::entry_for_kind(Interpreter::native));
101 return entry;
102 }
103 return NULL;
104 }
105
106 /**
107 * Method entry for static native methods:
108 * int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len)
109 * int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len)
110 */
111 address InterpreterGenerator::generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
112 if (UseCRC32Intrinsics) {
113 address entry = __ pc();
114
115 // rbx,: Method*
116 // rsi: senderSP must preserved for slow path, set SP to it on fast path
117 // rdx: scratch
118 // rdi: scratch
119
120 Label slow_path;
121 // If we need a safepoint check, generate full interpreter entry.
122 ExternalAddress state(SafepointSynchronize::address_of_state());
123 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()),
124 SafepointSynchronize::_not_synchronized);
125 __ jcc(Assembler::notEqual, slow_path);
126
127 // We don't generate local frame and don't align stack because
128 // we call stub code and there is no safepoint on this path.
129
130 // Load parameters
131 const Register crc = rax; // crc
132 const Register buf = rdx; // source java byte array address
133 const Register len = rdi; // length
134
135 // value x86_32
136 // interp. arg ptr ESP + 4
137 // int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len)
138 // 3 2 1 0
139 // int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len)
140 // 4 2,3 1 0
141
142 // Arguments are reversed on java expression stack
143 __ movl(len, Address(rsp, 4 + 0)); // Length
144 // Calculate address of start element
145 if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) {
146 __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // long buf
147 __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
148 __ movl(crc, Address(rsp, 4 + 4 * wordSize)); // Initial CRC
149 } else {
150 __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // byte[] array
151 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
152 __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
153 __ movl(crc, Address(rsp, 4 + 3 * wordSize)); // Initial CRC
154 }
155
156 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len);
157 // result in rax
158
159 // _areturn
160 __ pop(rdi); // get return address
161 __ mov(rsp, rsi); // set sp to sender sp
162 __ jmp(rdi);
163
164 // generate a vanilla native entry as the slow path
165 __ bind(slow_path);
166 __ jump_to_entry(Interpreter::entry_for_kind(Interpreter::native));
167 return entry;
168 }
169 return NULL;
170 }
171
172 /**
173 * Method entry for static native methods:
174 * int java.util.zip.CRC32C.updateBytes(int crc, byte[] b, int off, int end)
175 * int java.util.zip.CRC32C.updateByteBuffer(int crc, long address, int off, int end)
176 */
177 address InterpreterGenerator::generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
178 if (UseCRC32CIntrinsics) {
179 address entry = __ pc();
180 // Load parameters
181 const Register crc = rax; // crc
182 const Register buf = rcx; // source java byte array address
183 const Register len = rdx; // length
184 const Register end = len;
185
186 // value x86_32
187 // interp. arg ptr ESP + 4
188 // int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int end)
189 // 3 2 1 0
190 // int java.util.zip.CRC32.updateByteBuffer(int crc, long address, int off, int end)
191 // 4 2,3 1 0
192
193 // Arguments are reversed on java expression stack
194 __ movl(end, Address(rsp, 4 + 0)); // end
195 __ subl(len, Address(rsp, 4 + 1 * wordSize)); // end - offset == length
196 // Calculate address of start element
197 if (kind == Interpreter::java_util_zip_CRC32C_updateDirectByteBuffer) {
198 __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // long address
199 __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
200 __ movl(crc, Address(rsp, 4 + 4 * wordSize)); // Initial CRC
201 } else {
202 __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // byte[] array
203 __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
204 __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
205 __ movl(crc, Address(rsp, 4 + 3 * wordSize)); // Initial CRC
206 }
207 __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32C()), crc, buf, len);
208 // result in rax
209 // _areturn
210 __ pop(rdi); // get return address
211 __ mov(rsp, rsi); // set sp to sender sp
212 __ jmp(rdi);
213
214 return entry;
215 }
216 return NULL;
217 }
218
219 /**
220 * Method entry for static native method:
221 * java.lang.Float.intBitsToFloat(int bits)
222 */
223 address InterpreterGenerator::generate_Float_intBitsToFloat_entry() {
224 if (UseSSE >= 1) {
225 address entry = __ pc();
226
227 // rsi: the sender's SP
228
229 // Skip safepoint check (compiler intrinsic versions of this method
230 // do not perform safepoint checks either).
231
232 // Load 'bits' into xmm0 (interpreter returns results in xmm0)
233 __ movflt(xmm0, Address(rsp, wordSize));
234
235 // Return
236 __ pop(rdi); // get return address
237 __ mov(rsp, rsi); // set rsp to the sender's SP
238 __ jmp(rdi);
239 return entry;
240 }
241
242 return NULL;
243 }
244
245 /**
246 * Method entry for static native method:
247 * java.lang.Float.floatToRawIntBits(float value)
248 */
249 address InterpreterGenerator::generate_Float_floatToRawIntBits_entry() {
250 if (UseSSE >= 1) {
251 address entry = __ pc();
252
253 // rsi: the sender's SP
254
255 // Skip safepoint check (compiler intrinsic versions of this method
256 // do not perform safepoint checks either).
257
258 // Load the parameter (a floating-point value) into rax.
259 __ movl(rax, Address(rsp, wordSize));
260
261 // Return
262 __ pop(rdi); // get return address
263 __ mov(rsp, rsi); // set rsp to the sender's SP
264 __ jmp(rdi);
265 return entry;
266 }
267
268 return NULL;
269 }
270
271
272 /**
273 * Method entry for static native method:
274 * java.lang.Double.longBitsToDouble(long bits)
275 */
276 address InterpreterGenerator::generate_Double_longBitsToDouble_entry() {
277 if (UseSSE >= 2) {
278 address entry = __ pc();
279
280 // rsi: the sender's SP
281
282 // Skip safepoint check (compiler intrinsic versions of this method
283 // do not perform safepoint checks either).
284
285 // Load 'bits' into xmm0 (interpreter returns results in xmm0)
286 __ movdbl(xmm0, Address(rsp, wordSize));
287
288 // Return
289 __ pop(rdi); // get return address
290 __ mov(rsp, rsi); // set rsp to the sender's SP
291 __ jmp(rdi);
292 return entry;
293 }
294
295 return NULL;
296 }
297
298 /**
299 * Method entry for static native method:
300 * java.lang.Double.doubleToRawLongBits(double value)
301 */
302 address InterpreterGenerator::generate_Double_doubleToRawLongBits_entry() {
303 if (UseSSE >= 2) {
304 address entry = __ pc();
305
306 // rsi: the sender's SP
307
308 // Skip safepoint check (compiler intrinsic versions of this method
309 // do not perform safepoint checks either).
310
311 // Load the parameter (a floating-point value) into rax.
312 __ movl(rdx, Address(rsp, 2*wordSize));
313 __ movl(rax, Address(rsp, wordSize));
314
315 // Return
316 __ pop(rdi); // get return address
317 __ mov(rsp, rsi); // set rsp to the sender's SP
318 __ jmp(rdi);
319 return entry;
320 }
321
322 return NULL;
323 }
324 #endif // CC_INTERP