quick_entrypoints_x86.S revision 966c3ae95d3c699ee9fbdbccc1acdaaf02325faf
1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "asm_support_x86.S" 18 19// For x86, the CFA is esp+4, the address above the pushed return address on the stack. 20 21 /* 22 * Macro that sets up the callee save frame to conform with 23 * Runtime::CreateCalleeSaveMethod(kSaveAll) 24 */ 25MACRO2(SETUP_SAVE_ALL_CALLEE_SAVE_FRAME, got_reg, temp_reg) 26 PUSH edi // Save callee saves (ebx is saved/restored by the upcall) 27 PUSH esi 28 PUSH ebp 29 subl MACRO_LITERAL(12), %esp // Grow stack by 3 words. 30 CFI_ADJUST_CFA_OFFSET(12) 31 SETUP_GOT_NOSAVE RAW_VAR(got_reg, 0) 32 // Load Runtime::instance_ from GOT. 33 movl SYMBOL(_ZN3art7Runtime9instance_E)@GOT(REG_VAR(got_reg, 0)), REG_VAR(temp_reg, 1) 34 movl (REG_VAR(temp_reg, 1)), REG_VAR(temp_reg, 1) 35 // Push save all callee-save method. 36 pushl RUNTIME_SAVE_ALL_CALLEE_SAVE_FRAME_OFFSET(REG_VAR(temp_reg, 1)) 37 CFI_ADJUST_CFA_OFFSET(4) 38 // Store esp as the top quick frame. 39 movl %esp, %fs:THREAD_TOP_QUICK_FRAME_OFFSET 40 // Ugly compile-time check, but we only have the preprocessor. 41 // Last +4: implicit return address pushed on stack when caller made call. 42#if (FRAME_SIZE_SAVE_ALL_CALLEE_SAVE != 3*4 + 16 + 4) 43#error "SAVE_ALL_CALLEE_SAVE_FRAME(X86) size not as expected." 44#endif 45END_MACRO 46 47 /* 48 * Macro that sets up the callee save frame to conform with 49 * Runtime::CreateCalleeSaveMethod(kRefsOnly) 50 */ 51MACRO2(SETUP_REFS_ONLY_CALLEE_SAVE_FRAME, got_reg, temp_reg) 52 PUSH edi // Save callee saves (ebx is saved/restored by the upcall) 53 PUSH esi 54 PUSH ebp 55 subl MACRO_LITERAL(12), %esp // Grow stack by 3 words. 56 CFI_ADJUST_CFA_OFFSET(12) 57 SETUP_GOT_NOSAVE VAR(got_reg, 0) 58 // Load Runtime::instance_ from GOT. 59 movl SYMBOL(_ZN3art7Runtime9instance_E)@GOT(REG_VAR(got_reg, 0)), REG_VAR(temp_reg, 1) 60 movl (REG_VAR(temp_reg, 1)), REG_VAR(temp_reg, 1) 61 // Push save all callee-save method. 62 pushl RUNTIME_REFS_ONLY_CALLEE_SAVE_FRAME_OFFSET(REG_VAR(temp_reg, 1)) 63 CFI_ADJUST_CFA_OFFSET(4) 64 // Store esp as the top quick frame. 65 movl %esp, %fs:THREAD_TOP_QUICK_FRAME_OFFSET 66 67 // Ugly compile-time check, but we only have the preprocessor. 68 // Last +4: implicit return address pushed on stack when caller made call. 69#if (FRAME_SIZE_REFS_ONLY_CALLEE_SAVE != 3*4 + 16 + 4) 70#error "REFS_ONLY_CALLEE_SAVE_FRAME(X86) size not as expected." 71#endif 72END_MACRO 73 74MACRO0(RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME) 75 addl MACRO_LITERAL(16), %esp // Unwind stack up to saved values 76 CFI_ADJUST_CFA_OFFSET(-16) 77 POP ebp // Restore callee saves (ebx is saved/restored by the upcall) 78 POP esi 79 POP edi 80END_MACRO 81 82 /* 83 * Macro that sets up the callee save frame to conform with 84 * Runtime::CreateCalleeSaveMethod(kRefsAndArgs) 85 */ 86MACRO2(SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME, got_reg, temp_reg) 87 PUSH edi // Save callee saves 88 PUSH esi 89 PUSH ebp 90 PUSH ebx // Save args 91 PUSH edx 92 PUSH ecx 93 // Create space for FPR args. 94 subl MACRO_LITERAL(4 * 8), %esp 95 CFI_ADJUST_CFA_OFFSET(4 * 8) 96 // Save FPRs. 97 movsd %xmm0, 0(%esp) 98 movsd %xmm1, 8(%esp) 99 movsd %xmm2, 16(%esp) 100 movsd %xmm3, 24(%esp) 101 102 SETUP_GOT_NOSAVE VAR(got_reg, 0) 103 // Load Runtime::instance_ from GOT. 104 movl SYMBOL(_ZN3art7Runtime9instance_E)@GOT(REG_VAR(got_reg, 0)), REG_VAR(temp_reg, 1) 105 movl (REG_VAR(temp_reg, 1)), REG_VAR(temp_reg, 1) 106 // Push save all callee-save method. 107 pushl RUNTIME_REFS_AND_ARGS_CALLEE_SAVE_FRAME_OFFSET(REG_VAR(temp_reg, 1)) 108 CFI_ADJUST_CFA_OFFSET(4) 109 // Store esp as the stop quick frame. 110 movl %esp, %fs:THREAD_TOP_QUICK_FRAME_OFFSET 111 112 // Ugly compile-time check, but we only have the preprocessor. 113 // Last +4: implicit return address pushed on stack when caller made call. 114#if (FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE != 7*4 + 4*8 + 4) 115#error "REFS_AND_ARGS_CALLEE_SAVE_FRAME(X86) size not as expected." 116#endif 117END_MACRO 118 119 /* 120 * Macro that sets up the callee save frame to conform with 121 * Runtime::CreateCalleeSaveMethod(kRefsAndArgs) where the method is passed in EAX. 122 */ 123MACRO0(SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_EAX) 124 // Save callee and GPR args, mixed together to agree with core spills bitmap. 125 PUSH edi // Save callee saves 126 PUSH esi 127 PUSH ebp 128 PUSH ebx // Save args 129 PUSH edx 130 PUSH ecx 131 132 // Create space for FPR args. 133 subl MACRO_LITERAL(32), %esp 134 CFI_ADJUST_CFA_OFFSET(32) 135 136 // Save FPRs. 137 movsd %xmm0, 0(%esp) 138 movsd %xmm1, 8(%esp) 139 movsd %xmm2, 16(%esp) 140 movsd %xmm3, 24(%esp) 141 142 PUSH eax // Store the ArtMethod reference at the bottom of the stack. 143 // Store esp as the stop quick frame. 144 movl %esp, %fs:THREAD_TOP_QUICK_FRAME_OFFSET 145END_MACRO 146 147MACRO0(RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME) 148 // Restore FPRs. EAX is still on the stack. 149 movsd 4(%esp), %xmm0 150 movsd 12(%esp), %xmm1 151 movsd 20(%esp), %xmm2 152 movsd 28(%esp), %xmm3 153 154 addl MACRO_LITERAL(36), %esp // Remove FPRs and EAX. 155 CFI_ADJUST_CFA_OFFSET(-36) 156 157 POP ecx // Restore args except eax 158 POP edx 159 POP ebx 160 POP ebp // Restore callee saves 161 POP esi 162 POP edi 163END_MACRO 164 165// Restore register and jump to routine 166// Inputs: EDI contains pointer to code. 167// Notes: Need to pop EAX too (restores Method*) 168MACRO0(RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME_AND_JUMP) 169 POP eax // Restore Method* 170 171 // Restore FPRs. 172 movsd 0(%esp), %xmm0 173 movsd 8(%esp), %xmm1 174 movsd 16(%esp), %xmm2 175 movsd 24(%esp), %xmm3 176 177 addl MACRO_LITERAL(32), %esp // Remove FPRs. 178 CFI_ADJUST_CFA_OFFSET(-32) 179 180 POP ecx // Restore args except eax 181 POP edx 182 POP ebx 183 POP ebp // Restore callee saves 184 POP esi 185 xchgl 0(%esp),%edi // restore EDI and place code pointer as only value on stack 186 ret 187END_MACRO 188 189 /* 190 * Macro that set calls through to artDeliverPendingExceptionFromCode, where the pending 191 * exception is Thread::Current()->exception_. 192 */ 193MACRO0(DELIVER_PENDING_EXCEPTION) 194 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save callee saves for throw 195 // Outgoing argument set up 196 subl MACRO_LITERAL(12), %esp // Alignment padding 197 CFI_ADJUST_CFA_OFFSET(12) 198 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 199 CFI_ADJUST_CFA_OFFSET(4) 200 call SYMBOL(artDeliverPendingExceptionFromCode) // artDeliverPendingExceptionFromCode(Thread*) 201 int3 // unreached 202END_MACRO 203 204MACRO2(NO_ARG_RUNTIME_EXCEPTION, c_name, cxx_name) 205 DEFINE_FUNCTION RAW_VAR(c_name, 0) 206 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save all registers as basis for long jump context 207 // Outgoing argument set up 208 subl MACRO_LITERAL(12), %esp // alignment padding 209 CFI_ADJUST_CFA_OFFSET(12) 210 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 211 CFI_ADJUST_CFA_OFFSET(4) 212 call VAR(cxx_name, 1) // cxx_name(Thread*) 213 int3 // unreached 214 END_FUNCTION RAW_VAR(c_name, 0) 215END_MACRO 216 217MACRO2(ONE_ARG_RUNTIME_EXCEPTION, c_name, cxx_name) 218 DEFINE_FUNCTION RAW_VAR(c_name, 0) 219 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save all registers as basis for long jump context 220 mov %esp, %ecx 221 // Outgoing argument set up 222 subl MACRO_LITERAL(8), %esp // alignment padding 223 CFI_ADJUST_CFA_OFFSET(8) 224 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 225 CFI_ADJUST_CFA_OFFSET(4) 226 PUSH eax // pass arg1 227 call VAR(cxx_name, 1) // cxx_name(arg1, Thread*) 228 int3 // unreached 229 END_FUNCTION RAW_VAR(c_name, 0) 230END_MACRO 231 232MACRO2(TWO_ARG_RUNTIME_EXCEPTION, c_name, cxx_name) 233 DEFINE_FUNCTION RAW_VAR(c_name, 0) 234 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save all registers as basis for long jump context 235 // Outgoing argument set up 236 PUSH eax // alignment padding 237 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 238 CFI_ADJUST_CFA_OFFSET(4) 239 PUSH ecx // pass arg2 240 PUSH eax // pass arg1 241 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, Thread*) 242 int3 // unreached 243 END_FUNCTION RAW_VAR(c_name, 0) 244END_MACRO 245 246 /* 247 * Called by managed code to create and deliver a NullPointerException. 248 */ 249NO_ARG_RUNTIME_EXCEPTION art_quick_throw_null_pointer_exception, artThrowNullPointerExceptionFromCode 250 251 /* 252 * Called by managed code to create and deliver an ArithmeticException. 253 */ 254NO_ARG_RUNTIME_EXCEPTION art_quick_throw_div_zero, artThrowDivZeroFromCode 255 256 /* 257 * Called by managed code to create and deliver a StackOverflowError. 258 */ 259NO_ARG_RUNTIME_EXCEPTION art_quick_throw_stack_overflow, artThrowStackOverflowFromCode 260 261 /* 262 * Called by managed code, saves callee saves and then calls artThrowException 263 * that will place a mock Method* at the bottom of the stack. Arg1 holds the exception. 264 */ 265ONE_ARG_RUNTIME_EXCEPTION art_quick_deliver_exception, artDeliverExceptionFromCode 266 267 /* 268 * Called by managed code to create and deliver a NoSuchMethodError. 269 */ 270ONE_ARG_RUNTIME_EXCEPTION art_quick_throw_no_such_method, artThrowNoSuchMethodFromCode 271 272 /* 273 * Called by managed code to create and deliver an ArrayIndexOutOfBoundsException. Arg1 holds 274 * index, arg2 holds limit. 275 */ 276TWO_ARG_RUNTIME_EXCEPTION art_quick_throw_array_bounds, artThrowArrayBoundsFromCode 277 278 /* 279 * All generated callsites for interface invokes and invocation slow paths will load arguments 280 * as usual - except instead of loading arg0/r0 with the target Method*, arg0/r0 will contain 281 * the method_idx. This wrapper will save arg1-arg3, load the caller's Method*, align the 282 * stack and call the appropriate C helper. 283 * NOTE: "this" is first visible argument of the target, and so can be found in arg1/r1. 284 * 285 * The helper will attempt to locate the target and return a 64-bit result in r0/r1 consisting 286 * of the target Method* in r0 and method->code_ in r1. 287 * 288 * If unsuccessful, the helper will return NULL/NULL. There will bea pending exception in the 289 * thread and we branch to another stub to deliver it. 290 * 291 * On success this wrapper will restore arguments and *jump* to the target, leaving the lr 292 * pointing back to the original caller. 293 */ 294MACRO2(INVOKE_TRAMPOLINE, c_name, cxx_name) 295 DEFINE_FUNCTION RAW_VAR(c_name, 0) 296 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME ebx, ebx 297 movl %esp, %edx // remember SP 298 299 // Outgoing argument set up 300 subl MACRO_LITERAL(12), %esp // alignment padding 301 CFI_ADJUST_CFA_OFFSET(12) 302 PUSH edx // pass SP 303 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 304 CFI_ADJUST_CFA_OFFSET(4) 305 pushl 32+32(%edx) // pass caller Method* 306 CFI_ADJUST_CFA_OFFSET(4) 307 PUSH ecx // pass arg2 308 PUSH eax // pass arg1 309 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, arg3, Thread*, SP) 310 movl %edx, %edi // save code pointer in EDI 311 addl MACRO_LITERAL(36), %esp // Pop arguments skip eax 312 CFI_ADJUST_CFA_OFFSET(-36) 313 314 // Restore FPRs. 315 movsd 0(%esp), %xmm0 316 movsd 8(%esp), %xmm1 317 movsd 16(%esp), %xmm2 318 movsd 24(%esp), %xmm3 319 320 // Remove space for FPR args. 321 addl MACRO_LITERAL(4 * 8), %esp 322 CFI_ADJUST_CFA_OFFSET(-4 * 8) 323 324 POP ecx // Restore args except eax 325 POP edx 326 POP ebx 327 POP ebp // Restore callee saves 328 POP esi 329 // Swap EDI callee save with code pointer. 330 xchgl %edi, (%esp) 331 testl %eax, %eax // Branch forward if exception pending. 332 jz 1f 333 // Tail call to intended method. 334 ret 3351: 336 addl MACRO_LITERAL(4), %esp // Pop code pointer off stack 337 CFI_ADJUST_CFA_OFFSET(-4) 338 DELIVER_PENDING_EXCEPTION 339 END_FUNCTION RAW_VAR(c_name, 0) 340END_MACRO 341 342INVOKE_TRAMPOLINE art_quick_invoke_interface_trampoline, artInvokeInterfaceTrampoline 343INVOKE_TRAMPOLINE art_quick_invoke_interface_trampoline_with_access_check, artInvokeInterfaceTrampolineWithAccessCheck 344 345INVOKE_TRAMPOLINE art_quick_invoke_static_trampoline_with_access_check, artInvokeStaticTrampolineWithAccessCheck 346INVOKE_TRAMPOLINE art_quick_invoke_direct_trampoline_with_access_check, artInvokeDirectTrampolineWithAccessCheck 347INVOKE_TRAMPOLINE art_quick_invoke_super_trampoline_with_access_check, artInvokeSuperTrampolineWithAccessCheck 348INVOKE_TRAMPOLINE art_quick_invoke_virtual_trampoline_with_access_check, artInvokeVirtualTrampolineWithAccessCheck 349 350 /* 351 * Helper for quick invocation stub to set up XMM registers. 352 * Increments shorty and arg_array and clobbers temp_char. 353 * Branches to finished if it encounters the end of the shorty. 354 */ 355MACRO5(LOOP_OVER_SHORTY_LOADING_XMMS, xmm_reg, shorty, arg_array, temp_char, finished) 3561: // LOOP 357 movb (REG_VAR(shorty, 1)), REG_VAR(temp_char, 3) // temp_char := *shorty 358 addl MACRO_LITERAL(1), REG_VAR(shorty, 1) // shorty++ 359 cmpb MACRO_LITERAL(0), REG_VAR(temp_char, 3) // if (temp_char == '\0') 360 je RAW_VAR(finished, 4) // goto finished 361 cmpb MACRO_LITERAL(68), REG_VAR(temp_char, 3) // if (temp_char == 'D') 362 je 2f // goto FOUND_DOUBLE 363 cmpb MACRO_LITERAL(70), REG_VAR(temp_char, 3) // if (temp_char == 'F') 364 je 3f // goto FOUND_FLOAT 365 addl MACRO_LITERAL(4), REG_VAR(arg_array, 2) // arg_array++ 366 // Handle extra space in arg array taken by a long. 367 cmpb MACRO_LITERAL(74), REG_VAR(temp_char, 3) // if (temp_char != 'J') 368 jne 1b // goto LOOP 369 addl MACRO_LITERAL(4), REG_VAR(arg_array, 2) // arg_array++ 370 jmp 1b // goto LOOP 3712: // FOUND_DOUBLE 372 movsd (REG_VAR(arg_array, 2)), REG_VAR(xmm_reg, 0) 373 addl MACRO_LITERAL(8), REG_VAR(arg_array, 2) // arg_array+=2 374 jmp 4f 3753: // FOUND_FLOAT 376 movss (REG_VAR(arg_array, 2)), REG_VAR(xmm_reg, 0) 377 addl MACRO_LITERAL(4), REG_VAR(arg_array, 2) // arg_array++ 3784: 379END_MACRO 380 381 /* 382 * Helper for quick invocation stub to set up GPR registers. 383 * Increments shorty and arg_array, and returns the current short character in 384 * temp_char. Branches to finished if it encounters the end of the shorty. 385 */ 386MACRO4(SKIP_OVER_FLOATS, shorty, arg_array, temp_char, finished) 3871: // LOOP: 388 movb (REG_VAR(shorty, 0)), REG_VAR(temp_char, 2) // temp_char := *shorty 389 addl MACRO_LITERAL(1), REG_VAR(shorty, 0) // shorty++ 390 cmpb MACRO_LITERAL(0), REG_VAR(temp_char, 2) // if (temp_char == '\0') 391 je RAW_VAR(finished, 3) // goto finished 392 cmpb MACRO_LITERAL(70), REG_VAR(temp_char, 2) // if (temp_char == 'F') 393 je 3f // goto SKIP_FLOAT 394 cmpb MACRO_LITERAL(68), REG_VAR(temp_char, 2) // if (temp_char == 'D') 395 je 4f // goto SKIP_DOUBLE 396 jmp 5f // goto end 3973: // SKIP_FLOAT 398 addl MACRO_LITERAL(4), REG_VAR(arg_array, 1) // arg_array++ 399 jmp 1b // goto LOOP 4004: // SKIP_DOUBLE 401 addl MACRO_LITERAL(8), REG_VAR(arg_array, 1) // arg_array+=2 402 jmp 1b // goto LOOP 4035: 404END_MACRO 405 406 /* 407 * Quick invocation stub (non-static). 408 * On entry: 409 * [sp] = return address 410 * [sp + 4] = method pointer 411 * [sp + 8] = argument array or NULL for no argument methods 412 * [sp + 12] = size of argument array in bytes 413 * [sp + 16] = (managed) thread pointer 414 * [sp + 20] = JValue* result 415 * [sp + 24] = shorty 416 */ 417DEFINE_FUNCTION art_quick_invoke_stub 418 // Save the non-volatiles. 419 PUSH ebp // save ebp 420 PUSH ebx // save ebx 421 PUSH esi // save esi 422 PUSH edi // save edi 423 // Set up argument XMM registers. 424 mov 24+16(%esp), %esi // ESI := shorty + 1 ; ie skip return arg character. 425 addl LITERAL(1), %esi 426 mov 8+16(%esp), %edi // EDI := arg_array + 4 ; ie skip this pointer. 427 addl LITERAL(4), %edi 428 // Clobbers ESI, EDI, EAX. 429 LOOP_OVER_SHORTY_LOADING_XMMS xmm0, esi, edi, al, .Lxmm_setup_finished 430 LOOP_OVER_SHORTY_LOADING_XMMS xmm1, esi, edi, al, .Lxmm_setup_finished 431 LOOP_OVER_SHORTY_LOADING_XMMS xmm2, esi, edi, al, .Lxmm_setup_finished 432 LOOP_OVER_SHORTY_LOADING_XMMS xmm3, esi, edi, al, .Lxmm_setup_finished 433 .balign 16 434.Lxmm_setup_finished: 435 mov %esp, %ebp // copy value of stack pointer into base pointer 436 CFI_DEF_CFA_REGISTER(ebp) 437 mov 28(%ebp), %ebx // get arg array size 438 // reserve space for return addr, method*, ebx, ebp, esi, and edi in frame 439 addl LITERAL(36), %ebx 440 // align frame size to 16 bytes 441 andl LITERAL(0xFFFFFFF0), %ebx 442 subl LITERAL(20), %ebx // remove space for return address, ebx, ebp, esi and edi 443 subl %ebx, %esp // reserve stack space for argument array 444 445 movl LITERAL(0), (%esp) // store NULL for method* 446 447 // Copy arg array into stack. 448 movl 28(%ebp), %ecx // ECX = size of args 449 movl 24(%ebp), %esi // ESI = argument array 450 leal 4(%esp), %edi // EDI = just after Method* in stack arguments 451 rep movsb // while (ecx--) { *edi++ = *esi++ } 452 453 mov 40(%ebp), %esi // ESI := shorty + 1 ; ie skip return arg character. 454 addl LITERAL(1), %esi 455 mov 24(%ebp), %edi // EDI := arg_array 456 mov 0(%edi), %ecx // ECX := this pointer 457 addl LITERAL(4), %edi // EDI := arg_array + 4 ; ie skip this pointer. 458 459 // Enumerate the possible cases for loading GPRS. 460 // edx (and maybe ebx): 461 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished 462 cmpb LITERAL(74), %al // if (al == 'J') goto FOUND_LONG 463 je .LfirstLong 464 // Must be an integer value. 465 movl (%edi), %edx 466 addl LITERAL(4), %edi // arg_array++ 467 468 // Now check ebx 469 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished 470 // Must be first word of a long, or an integer. 471 movl (%edi), %ebx 472 jmp .Lgpr_setup_finished 473.LfirstLong: 474 movl (%edi), %edx 475 movl 4(%edi), %ebx 476 // Nothing left to load. 477.Lgpr_setup_finished: 478 mov 20(%ebp), %eax // move method pointer into eax 479 call *MIRROR_ART_METHOD_QUICK_CODE_OFFSET_32(%eax) // call the method 480 mov %ebp, %esp // restore stack pointer 481 CFI_DEF_CFA_REGISTER(esp) 482 POP edi // pop edi 483 POP esi // pop esi 484 POP ebx // pop ebx 485 POP ebp // pop ebp 486 mov 20(%esp), %ecx // get result pointer 487 mov %eax, (%ecx) // store the result assuming its a long, int or Object* 488 mov %edx, 4(%ecx) // store the other half of the result 489 mov 24(%esp), %edx // get the shorty 490 cmpb LITERAL(68), (%edx) // test if result type char == 'D' 491 je .Lreturn_double_quick 492 cmpb LITERAL(70), (%edx) // test if result type char == 'F' 493 je .Lreturn_float_quick 494 ret 495.Lreturn_double_quick: 496 movsd %xmm0, (%ecx) // store the floating point result 497 ret 498.Lreturn_float_quick: 499 movss %xmm0, (%ecx) // store the floating point result 500 ret 501END_FUNCTION art_quick_invoke_stub 502 503 /* 504 * Quick invocation stub (static). 505 * On entry: 506 * [sp] = return address 507 * [sp + 4] = method pointer 508 * [sp + 8] = argument array or NULL for no argument methods 509 * [sp + 12] = size of argument array in bytes 510 * [sp + 16] = (managed) thread pointer 511 * [sp + 20] = JValue* result 512 * [sp + 24] = shorty 513 */ 514DEFINE_FUNCTION art_quick_invoke_static_stub 515 // Save the non-volatiles. 516 PUSH ebp // save ebp 517 PUSH ebx // save ebx 518 PUSH esi // save esi 519 PUSH edi // save edi 520 // Set up argument XMM registers. 521 mov 24+16(%esp), %esi // ESI := shorty + 1 ; ie skip return arg character. 522 addl LITERAL(1), %esi 523 mov 8+16(%esp), %edi // EDI := arg_array 524 // Clobbers ESI, EDI, EAX. 525 LOOP_OVER_SHORTY_LOADING_XMMS xmm0, esi, edi, al, .Lxmm_setup_finished2 526 LOOP_OVER_SHORTY_LOADING_XMMS xmm1, esi, edi, al, .Lxmm_setup_finished2 527 LOOP_OVER_SHORTY_LOADING_XMMS xmm2, esi, edi, al, .Lxmm_setup_finished2 528 LOOP_OVER_SHORTY_LOADING_XMMS xmm3, esi, edi, al, .Lxmm_setup_finished2 529 .balign 16 530.Lxmm_setup_finished2: 531 mov %esp, %ebp // copy value of stack pointer into base pointer 532 CFI_DEF_CFA_REGISTER(ebp) 533 mov 28(%ebp), %ebx // get arg array size 534 // reserve space for return addr, method*, ebx, ebp, esi, and edi in frame 535 addl LITERAL(36), %ebx 536 // align frame size to 16 bytes 537 andl LITERAL(0xFFFFFFF0), %ebx 538 subl LITERAL(20), %ebx // remove space for return address, ebx, ebp, esi and edi 539 subl %ebx, %esp // reserve stack space for argument array 540 541 movl LITERAL(0), (%esp) // store NULL for method* 542 543 // Copy arg array into stack. 544 movl 28(%ebp), %ecx // ECX = size of args 545 movl 24(%ebp), %esi // ESI = argument array 546 leal 4(%esp), %edi // EDI = just after Method* in stack arguments 547 rep movsb // while (ecx--) { *edi++ = *esi++ } 548 549 mov 40(%ebp), %esi // ESI := shorty + 1 ; ie skip return arg character. 550 addl LITERAL(1), %esi 551 mov 24(%ebp), %edi // EDI := arg_array 552 553 // Enumerate the possible cases for loading GPRS. 554 // ecx (and maybe edx) 555 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished2 556 cmpb LITERAL(74), %al // if (al == 'J') goto FOUND_LONG 557 je .LfirstLong2 558 // Must be an integer value. Load into ECX. 559 movl (%edi), %ecx 560 addl LITERAL(4), %edi // arg_array++ 561 562 // Now check edx (and maybe ebx). 563 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished2 564 cmpb LITERAL(74), %al // if (al == 'J') goto FOUND_LONG 565 je .LSecondLong2 566 // Must be an integer. Load into EDX. 567 movl (%edi), %edx 568 addl LITERAL(4), %edi // arg_array++ 569 570 // Is there anything for ebx? 571 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished2 572 // First word of long or integer. Load into EBX. 573 movl (%edi), %ebx 574 jmp .Lgpr_setup_finished2 575.LSecondLong2: 576 // EDX:EBX is long. That is all. 577 movl (%edi), %edx 578 movl 4(%edi), %ebx 579 jmp .Lgpr_setup_finished2 580.LfirstLong2: 581 // ECX:EDX is a long 582 movl (%edi), %ecx 583 movl 4(%edi), %edx 584 addl LITERAL(8), %edi // arg_array += 2 585 586 // Anything for EBX? 587 SKIP_OVER_FLOATS esi, edi, al, .Lgpr_setup_finished2 588 // First word of long or integer. Load into EBX. 589 movl (%edi), %ebx 590 jmp .Lgpr_setup_finished2 591 // Nothing left to load. 592.Lgpr_setup_finished2: 593 mov 20(%ebp), %eax // move method pointer into eax 594 call *MIRROR_ART_METHOD_QUICK_CODE_OFFSET_32(%eax) // call the method 595 mov %ebp, %esp // restore stack pointer 596 CFI_DEF_CFA_REGISTER(esp) 597 POP edi // pop edi 598 POP esi // pop esi 599 POP ebx // pop ebx 600 POP ebp // pop ebp 601 mov 20(%esp), %ecx // get result pointer 602 mov %eax, (%ecx) // store the result assuming its a long, int or Object* 603 mov %edx, 4(%ecx) // store the other half of the result 604 mov 24(%esp), %edx // get the shorty 605 cmpb LITERAL(68), (%edx) // test if result type char == 'D' 606 je .Lreturn_double_quick2 607 cmpb LITERAL(70), (%edx) // test if result type char == 'F' 608 je .Lreturn_float_quick2 609 ret 610.Lreturn_double_quick2: 611 movsd %xmm0, (%ecx) // store the floating point result 612 ret 613.Lreturn_float_quick2: 614 movss %xmm0, (%ecx) // store the floating point result 615 ret 616END_FUNCTION art_quick_invoke_static_stub 617 618MACRO3(NO_ARG_DOWNCALL, c_name, cxx_name, return_macro) 619 DEFINE_FUNCTION RAW_VAR(c_name, 0) 620 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 621 // Outgoing argument set up 622 subl MACRO_LITERAL(12), %esp // push padding 623 CFI_ADJUST_CFA_OFFSET(12) 624 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 625 CFI_ADJUST_CFA_OFFSET(4) 626 call VAR(cxx_name, 1) // cxx_name(Thread*) 627 addl MACRO_LITERAL(16), %esp // pop arguments 628 CFI_ADJUST_CFA_OFFSET(-16) 629 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 630 CALL_MACRO(return_macro, 2) // return or deliver exception 631 END_FUNCTION RAW_VAR(c_name, 0) 632END_MACRO 633 634MACRO3(ONE_ARG_DOWNCALL, c_name, cxx_name, return_macro) 635 DEFINE_FUNCTION RAW_VAR(c_name, 0) 636 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 637 // Outgoing argument set up 638 subl MACRO_LITERAL(8), %esp // push padding 639 CFI_ADJUST_CFA_OFFSET(8) 640 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 641 CFI_ADJUST_CFA_OFFSET(4) 642 PUSH eax // pass arg1 643 call VAR(cxx_name, 1) // cxx_name(arg1, Thread*) 644 addl MACRO_LITERAL(16), %esp // pop arguments 645 CFI_ADJUST_CFA_OFFSET(-16) 646 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 647 CALL_MACRO(return_macro, 2) // return or deliver exception 648 END_FUNCTION RAW_VAR(c_name, 0) 649END_MACRO 650 651MACRO3(TWO_ARG_DOWNCALL, c_name, cxx_name, return_macro) 652 DEFINE_FUNCTION RAW_VAR(c_name, 0) 653 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 654 // Outgoing argument set up 655 PUSH eax // push padding 656 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 657 CFI_ADJUST_CFA_OFFSET(4) 658 PUSH ecx // pass arg2 659 PUSH eax // pass arg1 660 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, Thread*) 661 addl MACRO_LITERAL(16), %esp // pop arguments 662 CFI_ADJUST_CFA_OFFSET(-16) 663 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 664 CALL_MACRO(return_macro, 2) // return or deliver exception 665 END_FUNCTION RAW_VAR(c_name, 0) 666END_MACRO 667 668MACRO3(THREE_ARG_DOWNCALL, c_name, cxx_name, return_macro) 669 DEFINE_FUNCTION RAW_VAR(c_name, 0) 670 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 671 // Outgoing argument set up 672 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 673 CFI_ADJUST_CFA_OFFSET(4) 674 PUSH edx // pass arg3 675 PUSH ecx // pass arg2 676 PUSH eax // pass arg1 677 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, arg3, Thread*) 678 addl MACRO_LITERAL(16), %esp // pop arguments 679 CFI_ADJUST_CFA_OFFSET(-16) 680 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 681 CALL_MACRO(return_macro, 2) // return or deliver exception 682 END_FUNCTION RAW_VAR(c_name, 0) 683END_MACRO 684 685MACRO3(ONE_ARG_REF_DOWNCALL, c_name, cxx_name, return_macro) 686 DEFINE_FUNCTION RAW_VAR(c_name, 0) 687 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 688 // Outgoing argument set up 689 mov FRAME_SIZE_REFS_ONLY_CALLEE_SAVE(%esp), %ecx // get referrer 690 PUSH eax // push padding 691 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 692 CFI_ADJUST_CFA_OFFSET(4) 693 PUSH ecx // pass referrer 694 PUSH eax // pass arg1 695 call VAR(cxx_name, 1) // cxx_name(arg1, referrer, Thread*) 696 addl MACRO_LITERAL(16), %esp // pop arguments 697 CFI_ADJUST_CFA_OFFSET(-16) 698 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 699 CALL_MACRO(return_macro, 2) // return or deliver exception 700 END_FUNCTION RAW_VAR(c_name, 0) 701END_MACRO 702 703MACRO3(TWO_ARG_REF_DOWNCALL, c_name, cxx_name, return_macro) 704 DEFINE_FUNCTION RAW_VAR(c_name, 0) 705 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 706 // Outgoing argument set up 707 mov FRAME_SIZE_REFS_ONLY_CALLEE_SAVE(%esp), %edx // get referrer 708 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 709 CFI_ADJUST_CFA_OFFSET(4) 710 PUSH edx // pass referrer 711 PUSH ecx // pass arg2 712 PUSH eax // pass arg1 713 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, referrer, Thread*) 714 addl MACRO_LITERAL(16), %esp // pop arguments 715 CFI_ADJUST_CFA_OFFSET(-16) 716 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 717 CALL_MACRO(return_macro, 2) // return or deliver exception 718 END_FUNCTION RAW_VAR(c_name, 0) 719END_MACRO 720 721MACRO3(THREE_ARG_REF_DOWNCALL, c_name, cxx_name, return_macro) 722 DEFINE_FUNCTION RAW_VAR(c_name, 0) 723 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 724 // Outgoing argument set up 725 mov FRAME_SIZE_REFS_ONLY_CALLEE_SAVE(%esp), %ebx // get referrer 726 subl MACRO_LITERAL(12), %esp // alignment padding 727 CFI_ADJUST_CFA_OFFSET(12) 728 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 729 CFI_ADJUST_CFA_OFFSET(4) 730 PUSH ebx // pass referrer 731 PUSH edx // pass arg3 732 PUSH ecx // pass arg2 733 PUSH eax // pass arg1 734 call VAR(cxx_name, 1) // cxx_name(arg1, arg2, arg3, referrer, Thread*) 735 addl LITERAL(32), %esp // pop arguments 736 CFI_ADJUST_CFA_OFFSET(-32) 737 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 738 CALL_MACRO(return_macro, 2) // return or deliver exception 739 END_FUNCTION RAW_VAR(c_name, 0) 740END_MACRO 741 742MACRO0(RETURN_IF_RESULT_IS_NON_ZERO) 743 testl %eax, %eax // eax == 0 ? 744 jz 1f // if eax == 0 goto 1 745 ret // return 7461: // deliver exception on current thread 747 DELIVER_PENDING_EXCEPTION 748END_MACRO 749 750MACRO0(RETURN_IF_EAX_ZERO) 751 testl %eax, %eax // eax == 0 ? 752 jnz 1f // if eax != 0 goto 1 753 ret // return 7541: // deliver exception on current thread 755 DELIVER_PENDING_EXCEPTION 756END_MACRO 757 758MACRO0(RETURN_OR_DELIVER_PENDING_EXCEPTION) 759 cmpl MACRO_LITERAL(0),%fs:THREAD_EXCEPTION_OFFSET // exception field == 0 ? 760 jne 1f // if exception field != 0 goto 1 761 ret // return 7621: // deliver exception on current thread 763 DELIVER_PENDING_EXCEPTION 764END_MACRO 765 766// Generate the allocation entrypoints for each allocator. 767// TODO: use arch/quick_alloc_entrypoints.S. Currently we don't as we need to use concatenation 768// macros to work around differences between OS/X's as and binutils as (OS/X lacks named arguments 769// to macros and the VAR macro won't concatenate arguments properly), this also breaks having 770// multi-line macros that use each other (hence using 1 macro per newline below). 771#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(c_suffix, cxx_suffix) \ 772 TWO_ARG_DOWNCALL art_quick_alloc_object ## c_suffix, artAllocObjectFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 773#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(c_suffix, cxx_suffix) \ 774 TWO_ARG_DOWNCALL art_quick_alloc_object_resolved ## c_suffix, artAllocObjectFromCodeResolved ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 775#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(c_suffix, cxx_suffix) \ 776 TWO_ARG_DOWNCALL art_quick_alloc_object_initialized ## c_suffix, artAllocObjectFromCodeInitialized ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 777#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \ 778 TWO_ARG_DOWNCALL art_quick_alloc_object_with_access_check ## c_suffix, artAllocObjectFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 779#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(c_suffix, cxx_suffix) \ 780 THREE_ARG_DOWNCALL art_quick_alloc_array ## c_suffix, artAllocArrayFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 781#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(c_suffix, cxx_suffix) \ 782 THREE_ARG_DOWNCALL art_quick_alloc_array_resolved ## c_suffix, artAllocArrayFromCodeResolved ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 783#define GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \ 784 THREE_ARG_DOWNCALL art_quick_alloc_array_with_access_check ## c_suffix, artAllocArrayFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 785#define GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(c_suffix, cxx_suffix) \ 786 THREE_ARG_DOWNCALL art_quick_check_and_alloc_array ## c_suffix, artCheckAndAllocArrayFromCode ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 787#define GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(c_suffix, cxx_suffix) \ 788 THREE_ARG_DOWNCALL art_quick_check_and_alloc_array_with_access_check ## c_suffix, artCheckAndAllocArrayFromCodeWithAccessCheck ## cxx_suffix, RETURN_IF_RESULT_IS_NON_ZERO 789 790GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_dlmalloc, DlMalloc) 791GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_dlmalloc, DlMalloc) 792GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_dlmalloc, DlMalloc) 793GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc) 794GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_dlmalloc, DlMalloc) 795GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_dlmalloc, DlMalloc) 796GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc) 797GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_dlmalloc, DlMalloc) 798GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc, DlMalloc) 799 800GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_dlmalloc_instrumented, DlMallocInstrumented) 801GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_dlmalloc_instrumented, DlMallocInstrumented) 802GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_dlmalloc_instrumented, DlMallocInstrumented) 803GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented) 804GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_dlmalloc_instrumented, DlMallocInstrumented) 805GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_dlmalloc_instrumented, DlMallocInstrumented) 806GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented) 807GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_dlmalloc_instrumented, DlMallocInstrumented) 808GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_dlmalloc_instrumented, DlMallocInstrumented) 809 810GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_rosalloc, RosAlloc) 811GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_rosalloc, RosAlloc) 812GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_rosalloc, RosAlloc) 813GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_rosalloc, RosAlloc) 814GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_rosalloc, RosAlloc) 815GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_rosalloc, RosAlloc) 816GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc, RosAlloc) 817GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_rosalloc, RosAlloc) 818GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc, RosAlloc) 819 820GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_rosalloc_instrumented, RosAllocInstrumented) 821GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_rosalloc_instrumented, RosAllocInstrumented) 822GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_rosalloc_instrumented, RosAllocInstrumented) 823GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented) 824GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_rosalloc_instrumented, RosAllocInstrumented) 825GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_rosalloc_instrumented, RosAllocInstrumented) 826GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented) 827GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_rosalloc_instrumented, RosAllocInstrumented) 828GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_rosalloc_instrumented, RosAllocInstrumented) 829 830GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_bump_pointer, BumpPointer) 831GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_bump_pointer, BumpPointer) 832GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_bump_pointer, BumpPointer) 833GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer) 834GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_bump_pointer, BumpPointer) 835GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_bump_pointer, BumpPointer) 836GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer) 837GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_bump_pointer, BumpPointer) 838GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer, BumpPointer) 839 840GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_bump_pointer_instrumented, BumpPointerInstrumented) 841GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_bump_pointer_instrumented, BumpPointerInstrumented) 842GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_bump_pointer_instrumented, BumpPointerInstrumented) 843GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented) 844GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_bump_pointer_instrumented, BumpPointerInstrumented) 845GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_bump_pointer_instrumented, BumpPointerInstrumented) 846GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented) 847GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_bump_pointer_instrumented, BumpPointerInstrumented) 848GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_bump_pointer_instrumented, BumpPointerInstrumented) 849 850GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_tlab, TLAB) 851GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_tlab, TLAB) 852GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_tlab, TLAB) 853GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_tlab, TLAB) 854GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_tlab, TLAB) 855GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_tlab, TLAB) 856GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab, TLAB) 857GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_tlab, TLAB) 858GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab, TLAB) 859 860GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_tlab_instrumented, TLABInstrumented) 861GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_tlab_instrumented, TLABInstrumented) 862GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_tlab_instrumented, TLABInstrumented) 863GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented) 864GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_tlab_instrumented, TLABInstrumented) 865GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_tlab_instrumented, TLABInstrumented) 866GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented) 867GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_tlab_instrumented, TLABInstrumented) 868GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_tlab_instrumented, TLABInstrumented) 869 870GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_region, Region) 871GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_region, Region) 872GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_region, Region) 873GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_region, Region) 874GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_region, Region) 875GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_region, Region) 876GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region, Region) 877GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_region, Region) 878GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region, Region) 879 880GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_region_instrumented, RegionInstrumented) 881GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_region_instrumented, RegionInstrumented) 882GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_region_instrumented, RegionInstrumented) 883GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_region_instrumented, RegionInstrumented) 884GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_region_instrumented, RegionInstrumented) 885GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_region_instrumented, RegionInstrumented) 886GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_instrumented, RegionInstrumented) 887GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_region_instrumented, RegionInstrumented) 888GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_instrumented, RegionInstrumented) 889 890GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_region_tlab, RegionTLAB) 891GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_region_tlab, RegionTLAB) 892GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_region_tlab, RegionTLAB) 893GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_region_tlab, RegionTLAB) 894GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_region_tlab, RegionTLAB) 895GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_region_tlab, RegionTLAB) 896GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_tlab, RegionTLAB) 897GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_region_tlab, RegionTLAB) 898GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_tlab, RegionTLAB) 899 900GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT(_region_tlab_instrumented, RegionTLABInstrumented) 901GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_RESOLVED(_region_tlab_instrumented, RegionTLABInstrumented) 902GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_INITIALIZED(_region_tlab_instrumented, RegionTLABInstrumented) 903GENERATE_ALLOC_ENTRYPOINTS_ALLOC_OBJECT_WITH_ACCESS_CHECK(_region_tlab_instrumented, RegionTLABInstrumented) 904GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY(_region_tlab_instrumented, RegionTLABInstrumented) 905GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_RESOLVED(_region_tlab_instrumented, RegionTLABInstrumented) 906GENERATE_ALLOC_ENTRYPOINTS_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_tlab_instrumented, RegionTLABInstrumented) 907GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY(_region_tlab_instrumented, RegionTLABInstrumented) 908GENERATE_ALLOC_ENTRYPOINTS_CHECK_AND_ALLOC_ARRAY_WITH_ACCESS_CHECK(_region_tlab_instrumented, RegionTLABInstrumented) 909 910TWO_ARG_DOWNCALL art_quick_resolve_string, artResolveStringFromCode, RETURN_IF_RESULT_IS_NON_ZERO 911TWO_ARG_DOWNCALL art_quick_initialize_static_storage, artInitializeStaticStorageFromCode, RETURN_IF_RESULT_IS_NON_ZERO 912TWO_ARG_DOWNCALL art_quick_initialize_type, artInitializeTypeFromCode, RETURN_IF_RESULT_IS_NON_ZERO 913TWO_ARG_DOWNCALL art_quick_initialize_type_and_verify_access, artInitializeTypeAndVerifyAccessFromCode, RETURN_IF_RESULT_IS_NON_ZERO 914 915TWO_ARG_REF_DOWNCALL art_quick_handle_fill_data, artHandleFillArrayDataFromCode, RETURN_IF_EAX_ZERO 916 917DEFINE_FUNCTION art_quick_lock_object 918 testl %eax, %eax // null check object/eax 919 jz .Lslow_lock 920.Lretry_lock: 921 movl MIRROR_OBJECT_LOCK_WORD_OFFSET(%eax), %ecx // ecx := lock word 922 test LITERAL(0xC0000000), %ecx // test the 2 high bits. 923 jne .Lslow_lock // slow path if either of the two high bits are set. 924 movl %fs:THREAD_ID_OFFSET, %edx // edx := thread id 925 test %ecx, %ecx 926 jnz .Lalready_thin // lock word contains a thin lock 927 // unlocked case - %edx holds thread id with count of 0 928 movl %eax, %ecx // remember object in case of retry 929 xor %eax, %eax // eax == 0 for comparison with lock word in cmpxchg 930 lock cmpxchg %edx, MIRROR_OBJECT_LOCK_WORD_OFFSET(%ecx) 931 jnz .Lcmpxchg_fail // cmpxchg failed retry 932 ret 933.Lcmpxchg_fail: 934 movl %ecx, %eax // restore eax 935 jmp .Lretry_lock 936.Lalready_thin: 937 cmpw %cx, %dx // do we hold the lock already? 938 jne .Lslow_lock 939 addl LITERAL(65536), %ecx // increment recursion count 940 test LITERAL(0xC0000000), %ecx // overflowed if either of top two bits are set 941 jne .Lslow_lock // count overflowed so go slow 942 // update lockword, cmpxchg not necessary as we hold lock 943 movl %ecx, MIRROR_OBJECT_LOCK_WORD_OFFSET(%eax) 944 ret 945.Lslow_lock: 946 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 947 // Outgoing argument set up 948 subl LITERAL(8), %esp // alignment padding 949 CFI_ADJUST_CFA_OFFSET(8) 950 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 951 CFI_ADJUST_CFA_OFFSET(4) 952 PUSH eax // pass object 953 call SYMBOL(artLockObjectFromCode) // artLockObjectFromCode(object, Thread*) 954 addl LITERAL(16), %esp // pop arguments 955 CFI_ADJUST_CFA_OFFSET(-16) 956 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 957 RETURN_IF_EAX_ZERO 958END_FUNCTION art_quick_lock_object 959 960DEFINE_FUNCTION art_quick_unlock_object 961 testl %eax, %eax // null check object/eax 962 jz .Lslow_unlock 963 movl MIRROR_OBJECT_LOCK_WORD_OFFSET(%eax), %ecx // ecx := lock word 964 movl %fs:THREAD_ID_OFFSET, %edx // edx := thread id 965 test LITERAL(0xC0000000), %ecx 966 jnz .Lslow_unlock // lock word contains a monitor 967 cmpw %cx, %dx // does the thread id match? 968 jne .Lslow_unlock 969 cmpl LITERAL(65536), %ecx 970 jae .Lrecursive_thin_unlock 971 movl LITERAL(0), MIRROR_OBJECT_LOCK_WORD_OFFSET(%eax) 972 ret 973.Lrecursive_thin_unlock: 974 subl LITERAL(65536), %ecx 975 mov %ecx, MIRROR_OBJECT_LOCK_WORD_OFFSET(%eax) 976 ret 977.Lslow_unlock: 978 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 979 // Outgoing argument set up 980 subl LITERAL(8), %esp // alignment padding 981 CFI_ADJUST_CFA_OFFSET(8) 982 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 983 CFI_ADJUST_CFA_OFFSET(4) 984 PUSH eax // pass object 985 call SYMBOL(artUnlockObjectFromCode) // artUnlockObjectFromCode(object, Thread*) 986 addl LITERAL(16), %esp // pop arguments 987 CFI_ADJUST_CFA_OFFSET(-16) 988 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 989 RETURN_IF_EAX_ZERO 990END_FUNCTION art_quick_unlock_object 991 992DEFINE_FUNCTION art_quick_is_assignable 993 PUSH eax // alignment padding 994 PUSH ecx // pass arg2 - obj->klass 995 PUSH eax // pass arg1 - checked class 996 call SYMBOL(artIsAssignableFromCode) // (Class* klass, Class* ref_klass) 997 addl LITERAL(12), %esp // pop arguments 998 CFI_ADJUST_CFA_OFFSET(-12) 999 ret 1000END_FUNCTION art_quick_is_assignable 1001 1002DEFINE_FUNCTION art_quick_check_cast 1003 PUSH eax // alignment padding 1004 PUSH ecx // pass arg2 - obj->klass 1005 PUSH eax // pass arg1 - checked class 1006 call SYMBOL(artIsAssignableFromCode) // (Class* klass, Class* ref_klass) 1007 testl %eax, %eax 1008 jz 1f // jump forward if not assignable 1009 addl LITERAL(12), %esp // pop arguments 1010 CFI_ADJUST_CFA_OFFSET(-12) 1011 ret 10121: 1013 POP eax // pop arguments 1014 POP ecx 1015 addl LITERAL(4), %esp 1016 CFI_ADJUST_CFA_OFFSET(-12) 1017 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save all registers as basis for long jump context 1018 // Outgoing argument set up 1019 PUSH eax // alignment padding 1020 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1021 CFI_ADJUST_CFA_OFFSET(4) 1022 PUSH ecx // pass arg2 1023 PUSH eax // pass arg1 1024 call SYMBOL(artThrowClassCastException) // (Class* a, Class* b, Thread*) 1025 int3 // unreached 1026END_FUNCTION art_quick_check_cast 1027 1028 /* 1029 * Entry from managed code for array put operations of objects where the value being stored 1030 * needs to be checked for compatibility. 1031 * eax = array, ecx = index, edx = value 1032 */ 1033DEFINE_FUNCTION art_quick_aput_obj_with_null_and_bound_check 1034 testl %eax, %eax 1035 jnz SYMBOL(art_quick_aput_obj_with_bound_check) 1036 jmp SYMBOL(art_quick_throw_null_pointer_exception) 1037END_FUNCTION art_quick_aput_obj_with_null_and_bound_check 1038 1039DEFINE_FUNCTION art_quick_aput_obj_with_bound_check 1040 movl MIRROR_ARRAY_LENGTH_OFFSET(%eax), %ebx 1041 cmpl %ebx, %ecx 1042 jb SYMBOL(art_quick_aput_obj) 1043 mov %ecx, %eax 1044 mov %ebx, %ecx 1045 jmp SYMBOL(art_quick_throw_array_bounds) 1046END_FUNCTION art_quick_aput_obj_with_bound_check 1047 1048DEFINE_FUNCTION art_quick_aput_obj 1049 test %edx, %edx // store of null 1050 jz .Ldo_aput_null 1051 movl MIRROR_OBJECT_CLASS_OFFSET(%eax), %ebx 1052 movl MIRROR_CLASS_COMPONENT_TYPE_OFFSET(%ebx), %ebx 1053 // value's type == array's component type - trivial assignability 1054 cmpl MIRROR_OBJECT_CLASS_OFFSET(%edx), %ebx 1055 jne .Lcheck_assignability 1056.Ldo_aput: 1057 movl %edx, MIRROR_OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4) 1058 movl %fs:THREAD_CARD_TABLE_OFFSET, %edx 1059 shrl LITERAL(7), %eax 1060 movb %dl, (%edx, %eax) 1061 ret 1062.Ldo_aput_null: 1063 movl %edx, MIRROR_OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4) 1064 ret 1065.Lcheck_assignability: 1066 PUSH eax // save arguments 1067 PUSH ecx 1068 PUSH edx 1069 subl LITERAL(8), %esp // alignment padding 1070 CFI_ADJUST_CFA_OFFSET(8) 1071 pushl MIRROR_OBJECT_CLASS_OFFSET(%edx) // pass arg2 - type of the value to be stored 1072 CFI_ADJUST_CFA_OFFSET(4) 1073 PUSH ebx // pass arg1 - component type of the array 1074 call SYMBOL(artIsAssignableFromCode) // (Class* a, Class* b) 1075 addl LITERAL(16), %esp // pop arguments 1076 CFI_ADJUST_CFA_OFFSET(-16) 1077 testl %eax, %eax 1078 jz .Lthrow_array_store_exception 1079 POP edx 1080 POP ecx 1081 POP eax 1082 movl %edx, MIRROR_OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4) // do the aput 1083 movl %fs:THREAD_CARD_TABLE_OFFSET, %edx 1084 shrl LITERAL(7), %eax 1085 movb %dl, (%edx, %eax) 1086 ret 1087.Lthrow_array_store_exception: 1088 POP edx 1089 POP ecx 1090 POP eax 1091 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx // save all registers as basis for long jump context 1092 // Outgoing argument set up 1093 PUSH eax // alignment padding 1094 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1095 CFI_ADJUST_CFA_OFFSET(4) 1096 PUSH edx // pass arg2 - value 1097 PUSH eax // pass arg1 - array 1098 call SYMBOL(artThrowArrayStoreException) // (array, value, Thread*) 1099 int3 // unreached 1100END_FUNCTION art_quick_aput_obj 1101 1102DEFINE_FUNCTION art_quick_memcpy 1103 SETUP_GOT_NOSAVE ebx // clobbers EBX 1104 PUSH edx // pass arg3 1105 PUSH ecx // pass arg2 1106 PUSH eax // pass arg1 1107 call PLT_SYMBOL(memcpy) // (void*, const void*, size_t) 1108 addl LITERAL(12), %esp // pop arguments 1109 CFI_ADJUST_CFA_OFFSET(-12) 1110 ret 1111END_FUNCTION art_quick_memcpy 1112 1113NO_ARG_DOWNCALL art_quick_test_suspend, artTestSuspendFromCode, ret 1114 1115DEFINE_FUNCTION art_quick_d2l 1116 subl LITERAL(12), %esp // alignment padding, room for argument 1117 CFI_ADJUST_CFA_OFFSET(12) 1118 movsd %xmm0, 0(%esp) // arg a 1119 call SYMBOL(art_d2l) // (jdouble a) 1120 addl LITERAL(12), %esp // pop arguments 1121 CFI_ADJUST_CFA_OFFSET(-12) 1122 ret 1123END_FUNCTION art_quick_d2l 1124 1125DEFINE_FUNCTION art_quick_f2l 1126 subl LITERAL(12), %esp // alignment padding 1127 CFI_ADJUST_CFA_OFFSET(12) 1128 movss %xmm0, 0(%esp) // arg a 1129 call SYMBOL(art_f2l) // (jfloat a) 1130 addl LITERAL(12), %esp // pop arguments 1131 CFI_ADJUST_CFA_OFFSET(-12) 1132 ret 1133END_FUNCTION art_quick_f2l 1134 1135DEFINE_FUNCTION art_quick_ldiv 1136 subl LITERAL(12), %esp // alignment padding 1137 CFI_ADJUST_CFA_OFFSET(12) 1138 PUSH ebx // pass arg4 b.hi 1139 PUSH edx // pass arg3 b.lo 1140 PUSH ecx // pass arg2 a.hi 1141 PUSH eax // pass arg1 a.lo 1142 call SYMBOL(artLdiv) // (jlong a, jlong b) 1143 addl LITERAL(28), %esp // pop arguments 1144 CFI_ADJUST_CFA_OFFSET(-28) 1145 ret 1146END_FUNCTION art_quick_ldiv 1147 1148DEFINE_FUNCTION art_quick_lmod 1149 subl LITERAL(12), %esp // alignment padding 1150 CFI_ADJUST_CFA_OFFSET(12) 1151 PUSH ebx // pass arg4 b.hi 1152 PUSH edx // pass arg3 b.lo 1153 PUSH ecx // pass arg2 a.hi 1154 PUSH eax // pass arg1 a.lo 1155 call SYMBOL(artLmod) // (jlong a, jlong b) 1156 addl LITERAL(28), %esp // pop arguments 1157 CFI_ADJUST_CFA_OFFSET(-28) 1158 ret 1159END_FUNCTION art_quick_lmod 1160 1161DEFINE_FUNCTION art_quick_lmul 1162 imul %eax, %ebx // ebx = a.lo(eax) * b.hi(ebx) 1163 imul %edx, %ecx // ecx = b.lo(edx) * a.hi(ecx) 1164 mul %edx // edx:eax = a.lo(eax) * b.lo(edx) 1165 add %ebx, %ecx 1166 add %ecx, %edx // edx += (a.lo * b.hi) + (b.lo * a.hi) 1167 ret 1168END_FUNCTION art_quick_lmul 1169 1170DEFINE_FUNCTION art_quick_lshl 1171 // ecx:eax << edx 1172 xchg %edx, %ecx 1173 shld %cl,%eax,%edx 1174 shl %cl,%eax 1175 test LITERAL(32), %cl 1176 jz 1f 1177 mov %eax, %edx 1178 xor %eax, %eax 11791: 1180 ret 1181END_FUNCTION art_quick_lshl 1182 1183DEFINE_FUNCTION art_quick_lshr 1184 // ecx:eax >> edx 1185 xchg %edx, %ecx 1186 shrd %cl,%edx,%eax 1187 sar %cl,%edx 1188 test LITERAL(32),%cl 1189 jz 1f 1190 mov %edx, %eax 1191 sar LITERAL(31), %edx 11921: 1193 ret 1194END_FUNCTION art_quick_lshr 1195 1196DEFINE_FUNCTION art_quick_lushr 1197 // ecx:eax >>> edx 1198 xchg %edx, %ecx 1199 shrd %cl,%edx,%eax 1200 shr %cl,%edx 1201 test LITERAL(32),%cl 1202 jz 1f 1203 mov %edx, %eax 1204 xor %edx, %edx 12051: 1206 ret 1207END_FUNCTION art_quick_lushr 1208 1209ONE_ARG_REF_DOWNCALL art_quick_get_boolean_static, artGetBooleanStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1210ONE_ARG_REF_DOWNCALL art_quick_get_byte_static, artGetByteStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1211ONE_ARG_REF_DOWNCALL art_quick_get_char_static, artGetCharStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1212ONE_ARG_REF_DOWNCALL art_quick_get_short_static, artGetShortStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1213ONE_ARG_REF_DOWNCALL art_quick_get32_static, artGet32StaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1214ONE_ARG_REF_DOWNCALL art_quick_get64_static, artGet64StaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1215ONE_ARG_REF_DOWNCALL art_quick_get_obj_static, artGetObjStaticFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1216 1217TWO_ARG_REF_DOWNCALL art_quick_get_boolean_instance, artGetBooleanInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1218TWO_ARG_REF_DOWNCALL art_quick_get_byte_instance, artGetByteInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1219TWO_ARG_REF_DOWNCALL art_quick_get_char_instance, artGetCharInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1220TWO_ARG_REF_DOWNCALL art_quick_get_short_instance, artGetShortInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1221TWO_ARG_REF_DOWNCALL art_quick_get32_instance, artGet32InstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1222TWO_ARG_REF_DOWNCALL art_quick_get64_instance, artGet64InstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1223TWO_ARG_REF_DOWNCALL art_quick_get_obj_instance, artGetObjInstanceFromCode, RETURN_OR_DELIVER_PENDING_EXCEPTION 1224 1225TWO_ARG_REF_DOWNCALL art_quick_set8_static, artSet8StaticFromCode, RETURN_IF_EAX_ZERO 1226TWO_ARG_REF_DOWNCALL art_quick_set16_static, artSet16StaticFromCode, RETURN_IF_EAX_ZERO 1227TWO_ARG_REF_DOWNCALL art_quick_set32_static, artSet32StaticFromCode, RETURN_IF_EAX_ZERO 1228TWO_ARG_REF_DOWNCALL art_quick_set_obj_static, artSetObjStaticFromCode, RETURN_IF_EAX_ZERO 1229 1230THREE_ARG_REF_DOWNCALL art_quick_set8_instance, artSet8InstanceFromCode, RETURN_IF_EAX_ZERO 1231THREE_ARG_REF_DOWNCALL art_quick_set16_instance, artSet16InstanceFromCode, RETURN_IF_EAX_ZERO 1232THREE_ARG_REF_DOWNCALL art_quick_set32_instance, artSet32InstanceFromCode, RETURN_IF_EAX_ZERO 1233THREE_ARG_REF_DOWNCALL art_quick_set_obj_instance, artSetObjInstanceFromCode, RETURN_IF_EAX_ZERO 1234 1235// Call artSet64InstanceFromCode with 4 word size arguments and the referrer. 1236DEFINE_FUNCTION art_quick_set64_instance 1237 movd %ebx, %xmm0 1238 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 1239 movd %xmm0, %ebx 1240 // Outgoing argument set up 1241 subl LITERAL(8), %esp // alignment padding 1242 CFI_ADJUST_CFA_OFFSET(8) 1243 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1244 CFI_ADJUST_CFA_OFFSET(4) 1245 pushl (FRAME_SIZE_REFS_ONLY_CALLEE_SAVE+12)(%esp) // pass referrer 1246 CFI_ADJUST_CFA_OFFSET(4) 1247 PUSH ebx // pass high half of new_val 1248 PUSH edx // pass low half of new_val 1249 PUSH ecx // pass object 1250 PUSH eax // pass field_idx 1251 call SYMBOL(artSet64InstanceFromCode) // (field_idx, Object*, new_val, referrer, Thread*) 1252 addl LITERAL(32), %esp // pop arguments 1253 CFI_ADJUST_CFA_OFFSET(-32) 1254 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 1255 RETURN_IF_EAX_ZERO // return or deliver exception 1256END_FUNCTION art_quick_set64_instance 1257 1258// Call artSet64StaticFromCode with 3 word size arguments plus with the referrer in the 2nd position 1259// so that new_val is aligned on even registers were we passing arguments in registers. 1260DEFINE_FUNCTION art_quick_set64_static 1261 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx // save ref containing registers for GC 1262 mov FRAME_SIZE_REFS_ONLY_CALLEE_SAVE(%esp), %ebx // get referrer 1263 subl LITERAL(12), %esp // alignment padding 1264 CFI_ADJUST_CFA_OFFSET(12) 1265 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1266 CFI_ADJUST_CFA_OFFSET(4) 1267 PUSH edx // pass high half of new_val 1268 PUSH ecx // pass low half of new_val 1269 PUSH ebx // pass referrer 1270 PUSH eax // pass field_idx 1271 call SYMBOL(artSet64StaticFromCode) // (field_idx, referrer, new_val, Thread*) 1272 addl LITERAL(32), %esp // pop arguments 1273 CFI_ADJUST_CFA_OFFSET(-32) 1274 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME // restore frame up to return address 1275 RETURN_IF_EAX_ZERO // return or deliver exception 1276END_FUNCTION art_quick_set64_static 1277 1278DEFINE_FUNCTION art_quick_proxy_invoke_handler 1279 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_EAX 1280 PUSH esp // pass SP 1281 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1282 CFI_ADJUST_CFA_OFFSET(4) 1283 PUSH ecx // pass receiver 1284 PUSH eax // pass proxy method 1285 call SYMBOL(artQuickProxyInvokeHandler) // (proxy method, receiver, Thread*, SP) 1286 movd %eax, %xmm0 // place return value also into floating point return value 1287 movd %edx, %xmm1 1288 punpckldq %xmm1, %xmm0 1289 addl LITERAL(76), %esp // pop arguments 1290 CFI_ADJUST_CFA_OFFSET(-76) 1291 RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception 1292END_FUNCTION art_quick_proxy_invoke_handler 1293 1294 /* 1295 * Called to resolve an imt conflict. xmm0 is a hidden argument that holds the target method's 1296 * dex method index. 1297 */ 1298DEFINE_FUNCTION art_quick_imt_conflict_trampoline 1299 PUSH ecx 1300 movl 8(%esp), %eax // load caller Method* 1301 movl MIRROR_ART_METHOD_DEX_CACHE_METHODS_OFFSET(%eax), %eax // load dex_cache_resolved_methods 1302 movd %xmm7, %ecx // get target method index stored in xmm0 1303 movl MIRROR_OBJECT_ARRAY_DATA_OFFSET(%eax, %ecx, 4), %eax // load the target method 1304 POP ecx 1305 jmp SYMBOL(art_quick_invoke_interface_trampoline) 1306END_FUNCTION art_quick_imt_conflict_trampoline 1307 1308DEFINE_FUNCTION art_quick_resolution_trampoline 1309 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME ebx, ebx 1310 movl %esp, %edi 1311 PUSH EDI // pass SP. do not just PUSH ESP; that messes up unwinding 1312 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1313 CFI_ADJUST_CFA_OFFSET(4) 1314 PUSH ecx // pass receiver 1315 PUSH eax // pass method 1316 call SYMBOL(artQuickResolutionTrampoline) // (Method* called, receiver, Thread*, SP) 1317 movl %eax, %edi // remember code pointer in EDI 1318 addl LITERAL(16), %esp // pop arguments 1319 test %eax, %eax // if code pointer is NULL goto deliver pending exception 1320 jz 1f 1321 RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME_AND_JUMP 13221: 1323 RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME 1324 DELIVER_PENDING_EXCEPTION 1325END_FUNCTION art_quick_resolution_trampoline 1326 1327DEFINE_FUNCTION art_quick_generic_jni_trampoline 1328 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME_WITH_METHOD_IN_EAX 1329 movl %esp, %ebp // save SP at callee-save frame 1330 CFI_DEF_CFA_REGISTER(ebp) 1331 subl LITERAL(5120), %esp 1332 // prepare for artQuickGenericJniTrampoline call 1333 // (Thread*, SP) 1334 // (esp) 4(esp) <= C calling convention 1335 // fs:... ebp <= where they are 1336 1337 subl LITERAL(8), %esp // Padding for 16B alignment. 1338 pushl %ebp // Pass SP (to ArtMethod). 1339 pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current(). 1340 call SYMBOL(artQuickGenericJniTrampoline) // (Thread*, sp) 1341 1342 // The C call will have registered the complete save-frame on success. 1343 // The result of the call is: 1344 // eax: pointer to native code, 0 on error. 1345 // edx: pointer to the bottom of the used area of the alloca, can restore stack till there. 1346 1347 // Check for error = 0. 1348 test %eax, %eax 1349 jz .Lentry_error 1350 1351 // Release part of the alloca. 1352 movl %edx, %esp 1353 1354 // On x86 there are no registers passed, so nothing to pop here. 1355 // Native call. 1356 call *%eax 1357 1358 // result sign extension is handled in C code 1359 // prepare for artQuickGenericJniEndTrampoline call 1360 // (Thread*, result, result_f) 1361 // (esp) 4(esp) 12(esp) <= C calling convention 1362 // fs:... eax:edx fp0 <= where they are 1363 1364 subl LITERAL(20), %esp // Padding & pass float result. 1365 fstpl (%esp) 1366 pushl %edx // Pass int result. 1367 pushl %eax 1368 pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current(). 1369 call SYMBOL(artQuickGenericJniEndTrampoline) 1370 1371 // Tear down the alloca. 1372 movl %ebp, %esp 1373 CFI_DEF_CFA_REGISTER(esp) 1374 1375 // Pending exceptions possible. 1376 mov %fs:THREAD_EXCEPTION_OFFSET, %ebx 1377 testl %ebx, %ebx 1378 jnz .Lexception_in_native 1379 1380 // Tear down the callee-save frame. 1381 // Remove space for FPR args and EAX 1382 addl LITERAL(4 + 4 * 8), %esp 1383 CFI_ADJUST_CFA_OFFSET(-(4 + 4 * 8)) 1384 1385 POP ecx 1386 addl LITERAL(4), %esp // Avoid edx, as it may be part of the result. 1387 CFI_ADJUST_CFA_OFFSET(-4) 1388 POP ebx 1389 POP ebp // Restore callee saves 1390 POP esi 1391 POP edi 1392 // Quick expects the return value to be in xmm0. 1393 movd %eax, %xmm0 1394 movd %edx, %xmm1 1395 punpckldq %xmm1, %xmm0 1396 ret 1397.Lentry_error: 1398 movl %ebp, %esp 1399 CFI_DEF_CFA_REGISTER(esp) 1400.Lexception_in_native: 1401 RESTORE_REFS_AND_ARGS_CALLEE_SAVE_FRAME 1402 DELIVER_PENDING_EXCEPTION 1403END_FUNCTION art_quick_generic_jni_trampoline 1404 1405DEFINE_FUNCTION art_quick_to_interpreter_bridge 1406 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME ebx, ebx // save frame 1407 mov %esp, %edx // remember SP 1408 PUSH eax // alignment padding 1409 PUSH edx // pass SP 1410 pushl %fs:THREAD_SELF_OFFSET // pass Thread::Current() 1411 CFI_ADJUST_CFA_OFFSET(4) 1412 PUSH eax // pass method 1413 call SYMBOL(artQuickToInterpreterBridge) // (method, Thread*, SP) 1414 addl LITERAL(16), %esp // pop arguments 1415 CFI_ADJUST_CFA_OFFSET(-16) 1416 1417 // Return eax:edx in xmm0 also. 1418 movd %eax, %xmm0 1419 movd %edx, %xmm1 1420 punpckldq %xmm1, %xmm0 1421 1422 addl LITERAL(48), %esp // Remove FPRs and EAX, ECX, EDX, EBX. 1423 CFI_ADJUST_CFA_OFFSET(-48) 1424 1425 POP ebp // Restore callee saves 1426 POP esi 1427 POP edi 1428 1429 RETURN_OR_DELIVER_PENDING_EXCEPTION // return or deliver exception 1430END_FUNCTION art_quick_to_interpreter_bridge 1431 1432 /* 1433 * Routine that intercepts method calls and returns. 1434 */ 1435DEFINE_FUNCTION art_quick_instrumentation_entry 1436 SETUP_REFS_AND_ARGS_CALLEE_SAVE_FRAME ebx, edx 1437 PUSH eax // Save eax which will be clobbered by the callee-save method. 1438 subl LITERAL(12), %esp // Align stack. 1439 CFI_ADJUST_CFA_OFFSET(12) 1440 pushl FRAME_SIZE_REFS_AND_ARGS_CALLEE_SAVE-4+16(%esp) // Pass LR. 1441 CFI_ADJUST_CFA_OFFSET(4) 1442 pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current(). 1443 CFI_ADJUST_CFA_OFFSET(4) 1444 PUSH ecx // Pass receiver. 1445 PUSH eax // Pass Method*. 1446 call SYMBOL(artInstrumentationMethodEntryFromCode) // (Method*, Object*, Thread*, LR) 1447 addl LITERAL(28), %esp // Pop arguments upto saved Method*. 1448 movl 60(%esp), %edi // Restore edi. 1449 movl %eax, 60(%esp) // Place code* over edi, just under return pc. 1450 movl SYMBOL(art_quick_instrumentation_exit)@GOT(%ebx), %ebx 1451 // Place instrumentation exit as return pc. ebx holds the GOT computed on entry. 1452 movl %ebx, 64(%esp) 1453 movl 0(%esp), %eax // Restore eax. 1454 // Restore FPRs (extra 4 bytes of offset due to EAX push at top). 1455 movsd 8(%esp), %xmm0 1456 movsd 16(%esp), %xmm1 1457 movsd 24(%esp), %xmm2 1458 movsd 32(%esp), %xmm3 1459 1460 // Restore GPRs. 1461 movl 40(%esp), %ecx // Restore ecx. 1462 movl 48(%esp), %edx // Restore edx. 1463 movl 48(%esp), %ebx // Restore ebx. 1464 movl 52(%esp), %ebp // Restore ebp. 1465 movl 56(%esp), %esi // Restore esi. 1466 addl LITERAL(60), %esp // Wind stack back upto code*. 1467 ret // Call method (and pop). 1468END_FUNCTION art_quick_instrumentation_entry 1469 1470DEFINE_FUNCTION art_quick_instrumentation_exit 1471 pushl LITERAL(0) // Push a fake return PC as there will be none on the stack. 1472 SETUP_REFS_ONLY_CALLEE_SAVE_FRAME ebx, ebx 1473 mov %esp, %ecx // Remember SP 1474 subl LITERAL(8), %esp // Save float return value. 1475 CFI_ADJUST_CFA_OFFSET(8) 1476 movq %xmm0, (%esp) 1477 PUSH edx // Save gpr return value. 1478 PUSH eax 1479 subl LITERAL(16), %esp // Align stack 1480 CFI_ADJUST_CFA_OFFSET(16) 1481 movq %xmm0, (%esp) // Pass float return value. 1482 PUSH edx // Pass gpr return value. 1483 PUSH eax 1484 PUSH ecx // Pass SP. 1485 pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current. 1486 CFI_ADJUST_CFA_OFFSET(4) 1487 call SYMBOL(artInstrumentationMethodExitFromCode) // (Thread*, SP, gpr_result, fpr_result) 1488 mov %eax, %ecx // Move returned link register. 1489 addl LITERAL(32), %esp // Pop arguments. 1490 CFI_ADJUST_CFA_OFFSET(-32) 1491 movl %edx, %ebx // Move returned link register for deopt 1492 // (ebx is pretending to be our LR). 1493 POP eax // Restore gpr return value. 1494 POP edx 1495 movq (%esp), %xmm0 // Restore fpr return value. 1496 addl LITERAL(8), %esp 1497 CFI_ADJUST_CFA_OFFSET(-8) 1498 RESTORE_REFS_ONLY_CALLEE_SAVE_FRAME 1499 addl LITERAL(4), %esp // Remove fake return pc. 1500 jmp *%ecx // Return. 1501END_FUNCTION art_quick_instrumentation_exit 1502 1503 /* 1504 * Instrumentation has requested that we deoptimize into the interpreter. The deoptimization 1505 * will long jump to the upcall with a special exception of -1. 1506 */ 1507DEFINE_FUNCTION art_quick_deoptimize 1508 pushl %ebx // Fake that we were called. 1509 SETUP_SAVE_ALL_CALLEE_SAVE_FRAME ebx, ebx 1510 subl LITERAL(12), %esp // Align stack. 1511 CFI_ADJUST_CFA_OFFSET(12) 1512 pushl %fs:THREAD_SELF_OFFSET // Pass Thread::Current(). 1513 CFI_ADJUST_CFA_OFFSET(4) 1514 call SYMBOL(artDeoptimize) // artDeoptimize(Thread*) 1515 int3 // Unreachable. 1516END_FUNCTION art_quick_deoptimize 1517 1518 /* 1519 * String's compareTo. 1520 * 1521 * On entry: 1522 * eax: this string object (known non-null) 1523 * ecx: comp string object (known non-null) 1524 */ 1525DEFINE_FUNCTION art_quick_string_compareto 1526 PUSH esi // push callee save reg 1527 PUSH edi // push callee save reg 1528 mov MIRROR_STRING_COUNT_OFFSET(%eax), %edx 1529 mov MIRROR_STRING_COUNT_OFFSET(%ecx), %ebx 1530 mov MIRROR_STRING_VALUE_OFFSET(%eax), %esi 1531 mov MIRROR_STRING_VALUE_OFFSET(%ecx), %edi 1532 mov MIRROR_STRING_OFFSET_OFFSET(%eax), %eax 1533 mov MIRROR_STRING_OFFSET_OFFSET(%ecx), %ecx 1534 /* Build pointers to the start of string data */ 1535 lea MIRROR_CHAR_ARRAY_DATA_OFFSET(%esi, %eax, 2), %esi 1536 lea MIRROR_CHAR_ARRAY_DATA_OFFSET(%edi, %ecx, 2), %edi 1537 /* Calculate min length and count diff */ 1538 mov %edx, %ecx 1539 mov %edx, %eax 1540 subl %ebx, %eax 1541 cmovg %ebx, %ecx 1542 /* 1543 * At this point we have: 1544 * eax: value to return if first part of strings are equal 1545 * ecx: minimum among the lengths of the two strings 1546 * esi: pointer to this string data 1547 * edi: pointer to comp string data 1548 */ 1549 jecxz .Lkeep_length 1550 repe cmpsw // find nonmatching chars in [%esi] and [%edi], up to length %ecx 1551 jne .Lnot_equal 1552.Lkeep_length: 1553 POP edi // pop callee save reg 1554 POP esi // pop callee save reg 1555 ret 1556 .balign 16 1557.Lnot_equal: 1558 movzwl -2(%esi), %eax // get last compared char from this string 1559 movzwl -2(%edi), %ecx // get last compared char from comp string 1560 subl %ecx, %eax // return the difference 1561 POP edi // pop callee save reg 1562 POP esi // pop callee save reg 1563 ret 1564END_FUNCTION art_quick_string_compareto 1565 1566// Return from a nested signal: 1567// Entry: 1568// eax: address of jmp_buf in TLS 1569 1570DEFINE_FUNCTION art_nested_signal_return 1571 SETUP_GOT_NOSAVE ebx // sets %ebx for call into PLT 1572 movl LITERAL(1), %ecx 1573 pushl %ecx // second arg to longjmp (1) 1574 pushl %eax // first arg to longjmp (jmp_buf) 1575 call PLT_SYMBOL(longjmp) 1576 int3 // won't get here. 1577END_FUNCTION art_nested_signal_return 1578 1579 // TODO: implement these! 1580UNIMPLEMENTED art_quick_memcmp16 1581