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duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_interpreterRT_x86_64.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | #define __ _masm-> |
duke@435 | 29 | |
duke@435 | 30 | // Implementation of SignatureHandlerGenerator |
duke@435 | 31 | |
duke@435 | 32 | Register InterpreterRuntime::SignatureHandlerGenerator::from() { return r14; } |
duke@435 | 33 | Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; } |
duke@435 | 34 | Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; } |
duke@435 | 35 | |
duke@435 | 36 | void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { |
duke@435 | 37 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 38 | |
duke@435 | 39 | #ifdef _WIN64 |
duke@435 | 40 | switch (_num_args) { |
duke@435 | 41 | case 0: |
duke@435 | 42 | __ movl(c_rarg1, src); |
duke@435 | 43 | _num_args++; |
duke@435 | 44 | break; |
duke@435 | 45 | case 1: |
duke@435 | 46 | __ movl(c_rarg2, src); |
duke@435 | 47 | _num_args++; |
duke@435 | 48 | break; |
duke@435 | 49 | case 2: |
duke@435 | 50 | __ movl(c_rarg3, src); |
duke@435 | 51 | _num_args++; |
duke@435 | 52 | break; |
duke@435 | 53 | default: |
duke@435 | 54 | __ movl(rax, src); |
duke@435 | 55 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 56 | _stack_offset += wordSize; |
duke@435 | 57 | break; |
duke@435 | 58 | } |
duke@435 | 59 | #else |
duke@435 | 60 | switch (_num_int_args) { |
duke@435 | 61 | case 0: |
duke@435 | 62 | __ movl(c_rarg1, src); |
duke@435 | 63 | _num_int_args++; |
duke@435 | 64 | break; |
duke@435 | 65 | case 1: |
duke@435 | 66 | __ movl(c_rarg2, src); |
duke@435 | 67 | _num_int_args++; |
duke@435 | 68 | break; |
duke@435 | 69 | case 2: |
duke@435 | 70 | __ movl(c_rarg3, src); |
duke@435 | 71 | _num_int_args++; |
duke@435 | 72 | break; |
duke@435 | 73 | case 3: |
duke@435 | 74 | __ movl(c_rarg4, src); |
duke@435 | 75 | _num_int_args++; |
duke@435 | 76 | break; |
duke@435 | 77 | case 4: |
duke@435 | 78 | __ movl(c_rarg5, src); |
duke@435 | 79 | _num_int_args++; |
duke@435 | 80 | break; |
duke@435 | 81 | default: |
duke@435 | 82 | __ movl(rax, src); |
duke@435 | 83 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 84 | _stack_offset += wordSize; |
duke@435 | 85 | break; |
duke@435 | 86 | } |
duke@435 | 87 | #endif |
duke@435 | 88 | } |
duke@435 | 89 | |
duke@435 | 90 | void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { |
duke@435 | 91 | const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
duke@435 | 92 | |
duke@435 | 93 | #ifdef _WIN64 |
duke@435 | 94 | switch (_num_args) { |
duke@435 | 95 | case 0: |
duke@435 | 96 | __ movq(c_rarg1, src); |
duke@435 | 97 | _num_args++; |
duke@435 | 98 | break; |
duke@435 | 99 | case 1: |
duke@435 | 100 | __ movq(c_rarg2, src); |
duke@435 | 101 | _num_args++; |
duke@435 | 102 | break; |
duke@435 | 103 | case 2: |
duke@435 | 104 | __ movq(c_rarg3, src); |
duke@435 | 105 | _num_args++; |
duke@435 | 106 | break; |
duke@435 | 107 | case 3: |
duke@435 | 108 | default: |
duke@435 | 109 | __ movq(rax, src); |
duke@435 | 110 | __ movq(Address(to(), _stack_offset), rax); |
duke@435 | 111 | _stack_offset += wordSize; |
duke@435 | 112 | break; |
duke@435 | 113 | } |
duke@435 | 114 | #else |
duke@435 | 115 | switch (_num_int_args) { |
duke@435 | 116 | case 0: |
duke@435 | 117 | __ movq(c_rarg1, src); |
duke@435 | 118 | _num_int_args++; |
duke@435 | 119 | break; |
duke@435 | 120 | case 1: |
duke@435 | 121 | __ movq(c_rarg2, src); |
duke@435 | 122 | _num_int_args++; |
duke@435 | 123 | break; |
duke@435 | 124 | case 2: |
duke@435 | 125 | __ movq(c_rarg3, src); |
duke@435 | 126 | _num_int_args++; |
duke@435 | 127 | break; |
duke@435 | 128 | case 3: |
duke@435 | 129 | __ movq(c_rarg4, src); |
duke@435 | 130 | _num_int_args++; |
duke@435 | 131 | break; |
duke@435 | 132 | case 4: |
duke@435 | 133 | __ movq(c_rarg5, src); |
duke@435 | 134 | _num_int_args++; |
duke@435 | 135 | break; |
duke@435 | 136 | default: |
duke@435 | 137 | __ movq(rax, src); |
duke@435 | 138 | __ movq(Address(to(), _stack_offset), rax); |
duke@435 | 139 | _stack_offset += wordSize; |
duke@435 | 140 | break; |
duke@435 | 141 | } |
duke@435 | 142 | #endif |
duke@435 | 143 | } |
duke@435 | 144 | |
duke@435 | 145 | void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { |
duke@435 | 146 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 147 | |
duke@435 | 148 | #ifdef _WIN64 |
duke@435 | 149 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 150 | __ movflt(as_XMMRegister(++_num_args), src); |
duke@435 | 151 | } else { |
duke@435 | 152 | __ movl(rax, src); |
duke@435 | 153 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 154 | _stack_offset += wordSize; |
duke@435 | 155 | } |
duke@435 | 156 | #else |
duke@435 | 157 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 158 | __ movflt(as_XMMRegister(_num_fp_args++), src); |
duke@435 | 159 | } else { |
duke@435 | 160 | __ movl(rax, src); |
duke@435 | 161 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 162 | _stack_offset += wordSize; |
duke@435 | 163 | } |
duke@435 | 164 | #endif |
duke@435 | 165 | } |
duke@435 | 166 | |
duke@435 | 167 | void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { |
duke@435 | 168 | const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
duke@435 | 169 | |
duke@435 | 170 | #ifdef _WIN64 |
duke@435 | 171 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 172 | __ movdbl(as_XMMRegister(++_num_args), src); |
duke@435 | 173 | } else { |
duke@435 | 174 | __ movq(rax, src); |
duke@435 | 175 | __ movq(Address(to(), _stack_offset), rax); |
duke@435 | 176 | _stack_offset += wordSize; |
duke@435 | 177 | } |
duke@435 | 178 | #else |
duke@435 | 179 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 180 | __ movdbl(as_XMMRegister(_num_fp_args++), src); |
duke@435 | 181 | } else { |
duke@435 | 182 | __ movq(rax, src); |
duke@435 | 183 | __ movq(Address(to(), _stack_offset), rax); |
duke@435 | 184 | _stack_offset += wordSize; |
duke@435 | 185 | } |
duke@435 | 186 | #endif |
duke@435 | 187 | } |
duke@435 | 188 | |
duke@435 | 189 | void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { |
duke@435 | 190 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 191 | |
duke@435 | 192 | #ifdef _WIN64 |
duke@435 | 193 | switch (_num_args) { |
duke@435 | 194 | case 0: |
duke@435 | 195 | assert(offset() == 0, "argument register 1 can only be (non-null) receiver"); |
duke@435 | 196 | __ leaq(c_rarg1, src); |
duke@435 | 197 | _num_args++; |
duke@435 | 198 | break; |
duke@435 | 199 | case 1: |
duke@435 | 200 | __ leaq(rax, src); |
duke@435 | 201 | __ xorl(c_rarg2, c_rarg2); |
duke@435 | 202 | __ cmpq(src, 0); |
duke@435 | 203 | __ cmovq(Assembler::notEqual, c_rarg2, rax); |
duke@435 | 204 | _num_args++; |
duke@435 | 205 | break; |
duke@435 | 206 | case 2: |
duke@435 | 207 | __ leaq(rax, src); |
duke@435 | 208 | __ xorl(c_rarg3, c_rarg3); |
duke@435 | 209 | __ cmpq(src, 0); |
duke@435 | 210 | __ cmovq(Assembler::notEqual, c_rarg3, rax); |
duke@435 | 211 | _num_args++; |
duke@435 | 212 | break; |
duke@435 | 213 | default: |
duke@435 | 214 | __ leaq(rax, src); |
duke@435 | 215 | __ xorl(temp(), temp()); |
duke@435 | 216 | __ cmpq(src, 0); |
duke@435 | 217 | __ cmovq(Assembler::notEqual, temp(), rax); |
duke@435 | 218 | __ movq(Address(to(), _stack_offset), temp()); |
duke@435 | 219 | _stack_offset += wordSize; |
duke@435 | 220 | break; |
duke@435 | 221 | } |
duke@435 | 222 | #else |
duke@435 | 223 | switch (_num_int_args) { |
duke@435 | 224 | case 0: |
duke@435 | 225 | assert(offset() == 0, "argument register 1 can only be (non-null) receiver"); |
duke@435 | 226 | __ leaq(c_rarg1, src); |
duke@435 | 227 | _num_int_args++; |
duke@435 | 228 | break; |
duke@435 | 229 | case 1: |
duke@435 | 230 | __ leaq(rax, src); |
duke@435 | 231 | __ xorl(c_rarg2, c_rarg2); |
duke@435 | 232 | __ cmpq(src, 0); |
duke@435 | 233 | __ cmovq(Assembler::notEqual, c_rarg2, rax); |
duke@435 | 234 | _num_int_args++; |
duke@435 | 235 | break; |
duke@435 | 236 | case 2: |
duke@435 | 237 | __ leaq(rax, src); |
duke@435 | 238 | __ xorl(c_rarg3, c_rarg3); |
duke@435 | 239 | __ cmpq(src, 0); |
duke@435 | 240 | __ cmovq(Assembler::notEqual, c_rarg3, rax); |
duke@435 | 241 | _num_int_args++; |
duke@435 | 242 | break; |
duke@435 | 243 | case 3: |
duke@435 | 244 | __ leaq(rax, src); |
duke@435 | 245 | __ xorl(c_rarg4, c_rarg4); |
duke@435 | 246 | __ cmpq(src, 0); |
duke@435 | 247 | __ cmovq(Assembler::notEqual, c_rarg4, rax); |
duke@435 | 248 | _num_int_args++; |
duke@435 | 249 | break; |
duke@435 | 250 | case 4: |
duke@435 | 251 | __ leaq(rax, src); |
duke@435 | 252 | __ xorl(c_rarg5, c_rarg5); |
duke@435 | 253 | __ cmpq(src, 0); |
duke@435 | 254 | __ cmovq(Assembler::notEqual, c_rarg5, rax); |
duke@435 | 255 | _num_int_args++; |
duke@435 | 256 | break; |
duke@435 | 257 | default: |
duke@435 | 258 | __ leaq(rax, src); |
duke@435 | 259 | __ xorl(temp(), temp()); |
duke@435 | 260 | __ cmpq(src, 0); |
duke@435 | 261 | __ cmovq(Assembler::notEqual, temp(), rax); |
duke@435 | 262 | __ movq(Address(to(), _stack_offset), temp()); |
duke@435 | 263 | _stack_offset += wordSize; |
duke@435 | 264 | break; |
duke@435 | 265 | } |
duke@435 | 266 | #endif |
duke@435 | 267 | } |
duke@435 | 268 | |
duke@435 | 269 | void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { |
duke@435 | 270 | // generate code to handle arguments |
duke@435 | 271 | iterate(fingerprint); |
duke@435 | 272 | |
duke@435 | 273 | // return result handler |
duke@435 | 274 | __ lea(rax, ExternalAddress(Interpreter::result_handler(method()->result_type()))); |
duke@435 | 275 | __ ret(0); |
duke@435 | 276 | |
duke@435 | 277 | __ flush(); |
duke@435 | 278 | } |
duke@435 | 279 | |
duke@435 | 280 | |
duke@435 | 281 | // Implementation of SignatureHandlerLibrary |
duke@435 | 282 | |
duke@435 | 283 | void SignatureHandlerLibrary::pd_set_handler(address handler) {} |
duke@435 | 284 | |
duke@435 | 285 | |
duke@435 | 286 | #ifdef _WIN64 |
duke@435 | 287 | class SlowSignatureHandler |
duke@435 | 288 | : public NativeSignatureIterator { |
duke@435 | 289 | private: |
duke@435 | 290 | address _from; |
duke@435 | 291 | intptr_t* _to; |
duke@435 | 292 | intptr_t* _reg_args; |
duke@435 | 293 | intptr_t* _fp_identifiers; |
duke@435 | 294 | unsigned int _num_args; |
duke@435 | 295 | |
duke@435 | 296 | #ifdef ASSERT |
duke@435 | 297 | void verify_tag(frame::Tag t) { |
duke@435 | 298 | assert(!TaggedStackInterpreter || |
duke@435 | 299 | *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag"); |
duke@435 | 300 | } |
duke@435 | 301 | #endif // ASSERT |
duke@435 | 302 | |
duke@435 | 303 | virtual void pass_int() |
duke@435 | 304 | { |
duke@435 | 305 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 306 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 307 | _from -= Interpreter::stackElementSize(); |
duke@435 | 308 | |
duke@435 | 309 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 310 | *_reg_args++ = from_obj; |
duke@435 | 311 | _num_args++; |
duke@435 | 312 | } else { |
duke@435 | 313 | *_to++ = from_obj; |
duke@435 | 314 | } |
duke@435 | 315 | } |
duke@435 | 316 | |
duke@435 | 317 | virtual void pass_long() |
duke@435 | 318 | { |
duke@435 | 319 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 320 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 321 | _from -= 2*Interpreter::stackElementSize(); |
duke@435 | 322 | |
duke@435 | 323 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 324 | *_reg_args++ = from_obj; |
duke@435 | 325 | _num_args++; |
duke@435 | 326 | } else { |
duke@435 | 327 | *_to++ = from_obj; |
duke@435 | 328 | } |
duke@435 | 329 | } |
duke@435 | 330 | |
duke@435 | 331 | virtual void pass_object() |
duke@435 | 332 | { |
duke@435 | 333 | intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
duke@435 | 334 | debug_only(verify_tag(frame::TagReference)); |
duke@435 | 335 | _from -= Interpreter::stackElementSize(); |
duke@435 | 336 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 337 | *_reg_args++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 338 | _num_args++; |
duke@435 | 339 | } else { |
duke@435 | 340 | *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 341 | } |
duke@435 | 342 | } |
duke@435 | 343 | |
duke@435 | 344 | virtual void pass_float() |
duke@435 | 345 | { |
duke@435 | 346 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 347 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 348 | _from -= Interpreter::stackElementSize(); |
duke@435 | 349 | |
duke@435 | 350 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 351 | *_reg_args++ = from_obj; |
duke@435 | 352 | *_fp_identifiers |= (0x01 << (_num_args*2)); // mark as float |
duke@435 | 353 | _num_args++; |
duke@435 | 354 | } else { |
duke@435 | 355 | *_to++ = from_obj; |
duke@435 | 356 | } |
duke@435 | 357 | } |
duke@435 | 358 | |
duke@435 | 359 | virtual void pass_double() |
duke@435 | 360 | { |
duke@435 | 361 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 362 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 363 | _from -= 2*Interpreter::stackElementSize(); |
duke@435 | 364 | |
duke@435 | 365 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 366 | *_reg_args++ = from_obj; |
duke@435 | 367 | *_fp_identifiers |= (0x3 << (_num_args*2)); // mark as double |
duke@435 | 368 | _num_args++; |
duke@435 | 369 | } else { |
duke@435 | 370 | *_to++ = from_obj; |
duke@435 | 371 | } |
duke@435 | 372 | } |
duke@435 | 373 | |
duke@435 | 374 | public: |
duke@435 | 375 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to) |
duke@435 | 376 | : NativeSignatureIterator(method) |
duke@435 | 377 | { |
duke@435 | 378 | _from = from; |
duke@435 | 379 | _to = to; |
duke@435 | 380 | |
duke@435 | 381 | _reg_args = to - (method->is_static() ? 4 : 5); |
duke@435 | 382 | _fp_identifiers = to - 2; |
duke@435 | 383 | _to = _to + 4; // Windows reserves stack space for register arguments |
duke@435 | 384 | *(int*) _fp_identifiers = 0; |
duke@435 | 385 | _num_args = (method->is_static() ? 1 : 0); |
duke@435 | 386 | } |
duke@435 | 387 | }; |
duke@435 | 388 | #else |
duke@435 | 389 | class SlowSignatureHandler |
duke@435 | 390 | : public NativeSignatureIterator { |
duke@435 | 391 | private: |
duke@435 | 392 | address _from; |
duke@435 | 393 | intptr_t* _to; |
duke@435 | 394 | intptr_t* _int_args; |
duke@435 | 395 | intptr_t* _fp_args; |
duke@435 | 396 | intptr_t* _fp_identifiers; |
duke@435 | 397 | unsigned int _num_int_args; |
duke@435 | 398 | unsigned int _num_fp_args; |
duke@435 | 399 | |
duke@435 | 400 | #ifdef ASSERT |
duke@435 | 401 | void verify_tag(frame::Tag t) { |
duke@435 | 402 | assert(!TaggedStackInterpreter || |
duke@435 | 403 | *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag"); |
duke@435 | 404 | } |
duke@435 | 405 | #endif // ASSERT |
duke@435 | 406 | |
duke@435 | 407 | virtual void pass_int() |
duke@435 | 408 | { |
duke@435 | 409 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 410 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 411 | _from -= Interpreter::stackElementSize(); |
duke@435 | 412 | |
duke@435 | 413 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 414 | *_int_args++ = from_obj; |
duke@435 | 415 | _num_int_args++; |
duke@435 | 416 | } else { |
duke@435 | 417 | *_to++ = from_obj; |
duke@435 | 418 | } |
duke@435 | 419 | } |
duke@435 | 420 | |
duke@435 | 421 | virtual void pass_long() |
duke@435 | 422 | { |
duke@435 | 423 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 424 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 425 | _from -= 2*Interpreter::stackElementSize(); |
duke@435 | 426 | |
duke@435 | 427 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 428 | *_int_args++ = from_obj; |
duke@435 | 429 | _num_int_args++; |
duke@435 | 430 | } else { |
duke@435 | 431 | *_to++ = from_obj; |
duke@435 | 432 | } |
duke@435 | 433 | } |
duke@435 | 434 | |
duke@435 | 435 | virtual void pass_object() |
duke@435 | 436 | { |
duke@435 | 437 | intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
duke@435 | 438 | debug_only(verify_tag(frame::TagReference)); |
duke@435 | 439 | _from -= Interpreter::stackElementSize(); |
duke@435 | 440 | |
duke@435 | 441 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 442 | *_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr; |
duke@435 | 443 | _num_int_args++; |
duke@435 | 444 | } else { |
duke@435 | 445 | *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 446 | } |
duke@435 | 447 | } |
duke@435 | 448 | |
duke@435 | 449 | virtual void pass_float() |
duke@435 | 450 | { |
duke@435 | 451 | jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0)); |
duke@435 | 452 | debug_only(verify_tag(frame::TagValue)); |
duke@435 | 453 | _from -= Interpreter::stackElementSize(); |
duke@435 | 454 | |
duke@435 | 455 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 456 | *_fp_args++ = from_obj; |
duke@435 | 457 | _num_fp_args++; |
duke@435 | 458 | } else { |
duke@435 | 459 | *_to++ = from_obj; |
duke@435 | 460 | } |
duke@435 | 461 | } |
duke@435 | 462 | |
duke@435 | 463 | virtual void pass_double() |
duke@435 | 464 | { |
duke@435 | 465 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
duke@435 | 466 | _from -= 2*Interpreter::stackElementSize(); |
duke@435 | 467 | |
duke@435 | 468 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 469 | *_fp_args++ = from_obj; |
duke@435 | 470 | *_fp_identifiers |= (1 << _num_fp_args); // mark as double |
duke@435 | 471 | _num_fp_args++; |
duke@435 | 472 | } else { |
duke@435 | 473 | *_to++ = from_obj; |
duke@435 | 474 | } |
duke@435 | 475 | } |
duke@435 | 476 | |
duke@435 | 477 | public: |
duke@435 | 478 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to) |
duke@435 | 479 | : NativeSignatureIterator(method) |
duke@435 | 480 | { |
duke@435 | 481 | _from = from; |
duke@435 | 482 | _to = to; |
duke@435 | 483 | |
duke@435 | 484 | _int_args = to - (method->is_static() ? 14 : 15); |
duke@435 | 485 | _fp_args = to - 9; |
duke@435 | 486 | _fp_identifiers = to - 10; |
duke@435 | 487 | *(int*) _fp_identifiers = 0; |
duke@435 | 488 | _num_int_args = (method->is_static() ? 1 : 0); |
duke@435 | 489 | _num_fp_args = 0; |
duke@435 | 490 | } |
duke@435 | 491 | }; |
duke@435 | 492 | #endif |
duke@435 | 493 | |
duke@435 | 494 | |
duke@435 | 495 | IRT_ENTRY(address, |
duke@435 | 496 | InterpreterRuntime::slow_signature_handler(JavaThread* thread, |
duke@435 | 497 | methodOopDesc* method, |
duke@435 | 498 | intptr_t* from, |
duke@435 | 499 | intptr_t* to)) |
duke@435 | 500 | methodHandle m(thread, (methodOop)method); |
duke@435 | 501 | assert(m->is_native(), "sanity check"); |
duke@435 | 502 | |
duke@435 | 503 | // handle arguments |
duke@435 | 504 | SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1)); |
duke@435 | 505 | |
duke@435 | 506 | // return result handler |
duke@435 | 507 | return Interpreter::result_handler(m->result_type()); |
duke@435 | 508 | IRT_END |