1 /*
2 * Copyright (c) 2008, 2023, 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.inline.hpp"
27 #include "c1/c1_Defs.hpp"
28 #include "c1/c1_LIRAssembler.hpp"
29 #include "c1/c1_MacroAssembler.hpp"
30 #include "c1/c1_Runtime1.hpp"
31 #include "ci/ciUtilities.hpp"
32 #include "compiler/oopMap.hpp"
33 #include "gc/shared/cardTable.hpp"
34 #include "gc/shared/cardTableBarrierSet.hpp"
35 #include "gc/shared/collectedHeap.hpp"
36 #include "gc/shared/tlab_globals.hpp"
37 #include "interpreter/interpreter.hpp"
38 #include "memory/universe.hpp"
39 #include "nativeInst_arm.hpp"
40 #include "oops/oop.inline.hpp"
41 #include "prims/jvmtiExport.hpp"
42 #include "register_arm.hpp"
43 #include "runtime/sharedRuntime.hpp"
44 #include "runtime/signature.hpp"
45 #include "runtime/vframeArray.hpp"
46 #include "utilities/align.hpp"
47 #include "vmreg_arm.inline.hpp"
48
49 // Note: Rtemp usage is this file should not impact C2 and should be
50 // correct as long as it is not implicitly used in lower layers (the
51 // arm [macro]assembler) and used with care in the other C1 specific
52 // files.
53
54 // Implementation of StubAssembler
55
56 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, int args_size) {
57 mov(R0, Rthread);
58
59 int call_offset = set_last_Java_frame(SP, FP, false, Rtemp);
60
61 call(entry);
62 if (call_offset == -1) { // PC not saved
63 call_offset = offset();
64 }
65 reset_last_Java_frame(Rtemp);
66
67 assert(frame_size() != no_frame_size, "frame must be fixed");
68 if (_stub_id != Runtime1::forward_exception_id) {
69 ldr(R3, Address(Rthread, Thread::pending_exception_offset()));
70 }
71
72 if (oop_result1->is_valid()) {
73 assert_different_registers(oop_result1, R3, Rtemp);
74 get_vm_result(oop_result1, Rtemp);
75 }
76 if (metadata_result->is_valid()) {
77 assert_different_registers(metadata_result, R3, Rtemp);
78 get_vm_result_2(metadata_result, Rtemp);
79 }
80
81 // Check for pending exception
82 // unpack_with_exception_in_tls path is taken through
83 // Runtime1::exception_handler_for_pc
84 if (_stub_id != Runtime1::forward_exception_id) {
85 assert(frame_size() != no_frame_size, "cannot directly call forward_exception_id");
86 cmp(R3, 0);
87 jump(Runtime1::entry_for(Runtime1::forward_exception_id), relocInfo::runtime_call_type, Rtemp, ne);
88 } else {
89 #ifdef ASSERT
90 // Should not have pending exception in forward_exception stub
91 ldr(R3, Address(Rthread, Thread::pending_exception_offset()));
92 cmp(R3, 0);
93 breakpoint(ne);
94 #endif // ASSERT
95 }
96 return call_offset;
97 }
98
99
100 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) {
101 if (arg1 != R1) {
102 mov(R1, arg1);
103 }
104 return call_RT(oop_result1, metadata_result, entry, 1);
105 }
106
107
108 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) {
109 assert(arg1 == R1 && arg2 == R2, "cannot handle otherwise");
110 return call_RT(oop_result1, metadata_result, entry, 2);
111 }
112
113
114 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) {
115 assert(arg1 == R1 && arg2 == R2 && arg3 == R3, "cannot handle otherwise");
116 return call_RT(oop_result1, metadata_result, entry, 3);
117 }
118
119
120 #define __ sasm->
121
122 // TODO: ARM - does this duplicate RegisterSaver in SharedRuntime?
123
124 enum RegisterLayout {
125 fpu_save_size = pd_nof_fpu_regs_reg_alloc,
126 #ifndef __SOFTFP__
127 D0_offset = 0,
128 #endif
129 R0_offset = fpu_save_size,
130 R1_offset,
131 R2_offset,
132 R3_offset,
133 R4_offset,
134 R5_offset,
135 R6_offset,
136 #if (FP_REG_NUM != 7)
137 R7_offset,
138 #endif
139 R8_offset,
140 R9_offset,
141 R10_offset,
142 #if (FP_REG_NUM != 11)
143 R11_offset,
144 #endif
145 R12_offset,
146 FP_offset,
147 LR_offset,
148 reg_save_size,
149 arg1_offset = reg_save_size * wordSize,
150 arg2_offset = (reg_save_size + 1) * wordSize
151 };
152
153
154 static OopMap* generate_oop_map(StubAssembler* sasm, bool save_fpu_registers = HaveVFP) {
155 sasm->set_frame_size(reg_save_size /* in words */);
156
157 // Record saved value locations in an OopMap.
158 // Locations are offsets from sp after runtime call.
159 OopMap* map = new OopMap(VMRegImpl::slots_per_word * reg_save_size, 0);
160
161 int j=0;
162 for (int i = R0_offset; i < R10_offset; i++) {
163 if (j == FP_REG_NUM) {
164 // skip the FP register, saved below
165 j++;
166 }
167 map->set_callee_saved(VMRegImpl::stack2reg(i), as_Register(j)->as_VMReg());
168 j++;
169 }
170 assert(j == R10->encoding(), "must be");
171 #if (FP_REG_NUM != 11)
172 // add R11, if not saved as FP
173 map->set_callee_saved(VMRegImpl::stack2reg(R11_offset), R11->as_VMReg());
174 #endif
175 map->set_callee_saved(VMRegImpl::stack2reg(FP_offset), FP->as_VMReg());
176 map->set_callee_saved(VMRegImpl::stack2reg(LR_offset), LR->as_VMReg());
177
178 if (save_fpu_registers) {
179 for (int i = 0; i < fpu_save_size; i++) {
180 map->set_callee_saved(VMRegImpl::stack2reg(i), as_FloatRegister(i)->as_VMReg());
181 }
182 }
183
184 return map;
185 }
186
187 static OopMap* save_live_registers(StubAssembler* sasm, bool save_fpu_registers = HaveVFP) {
188 __ block_comment("save_live_registers");
189 sasm->set_frame_size(reg_save_size /* in words */);
190
191 __ push(RegisterSet(FP) | RegisterSet(LR));
192 __ push(RegisterSet(R0, R6) | RegisterSet(R8, R10) | R12 | altFP_7_11);
193 if (save_fpu_registers) {
194 __ fpush(FloatRegisterSet(D0, fpu_save_size / 2));
195 } else {
196 __ sub(SP, SP, fpu_save_size * wordSize);
197 }
198
199 return generate_oop_map(sasm, save_fpu_registers);
200 }
201
202
203 static void restore_live_registers(StubAssembler* sasm,
204 bool restore_R0,
205 bool restore_FP_LR,
206 bool do_return,
207 bool restore_fpu_registers = HaveVFP) {
208 __ block_comment("restore_live_registers");
209
210 if (restore_fpu_registers) {
211 __ fpop(FloatRegisterSet(D0, fpu_save_size / 2));
212 if (!restore_R0) {
213 __ add(SP, SP, (R1_offset - fpu_save_size) * wordSize);
214 }
215 } else {
216 __ add(SP, SP, (restore_R0 ? fpu_save_size : R1_offset) * wordSize);
217 }
218 __ pop(RegisterSet((restore_R0 ? R0 : R1), R6) | RegisterSet(R8, R10) | R12 | altFP_7_11);
219 if (restore_FP_LR) {
220 __ pop(RegisterSet(FP) | RegisterSet(do_return ? PC : LR));
221 } else {
222 assert (!do_return, "return without restoring FP/LR");
223 }
224 }
225
226
227 static void restore_live_registers_except_R0(StubAssembler* sasm, bool restore_fpu_registers = HaveVFP) {
228 restore_live_registers(sasm, false, true, true, restore_fpu_registers);
229 }
230
231 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = HaveVFP) {
232 restore_live_registers(sasm, true, true, true, restore_fpu_registers);
233 }
234
235 static void restore_live_registers_except_FP_LR(StubAssembler* sasm, bool restore_fpu_registers = HaveVFP) {
236 restore_live_registers(sasm, true, false, false, restore_fpu_registers);
237 }
238
239 static void restore_live_registers_without_return(StubAssembler* sasm, bool restore_fpu_registers = HaveVFP) {
240 restore_live_registers(sasm, true, true, false, restore_fpu_registers);
241 }
242
243 void StubAssembler::save_live_registers() {
244 ::save_live_registers(this);
245 }
246
247 void StubAssembler::restore_live_registers_without_return() {
248 ::restore_live_registers_without_return(this);
249 }
250
251 void Runtime1::initialize_pd() {
252 }
253
254
255 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) {
256 OopMap* oop_map = save_live_registers(sasm);
257
258 int call_offset;
259 if (has_argument) {
260 __ ldr(R1, Address(SP, arg1_offset));
261 __ ldr(R2, Address(SP, arg2_offset));
262 call_offset = __ call_RT(noreg, noreg, target, R1, R2);
263 } else {
264 call_offset = __ call_RT(noreg, noreg, target);
265 }
266
267 OopMapSet* oop_maps = new OopMapSet();
268 oop_maps->add_gc_map(call_offset, oop_map);
269
270 DEBUG_ONLY(STOP("generate_exception_throw");) // Should not reach here
271 return oop_maps;
272 }
273
274
275 static void restore_sp_for_method_handle(StubAssembler* sasm) {
276 // Restore SP from its saved reg (FP) if the exception PC is a MethodHandle call site.
277 __ ldr_s32(Rtemp, Address(Rthread, JavaThread::is_method_handle_return_offset()));
278 __ cmp(Rtemp, 0);
279 __ mov(SP, Rmh_SP_save, ne);
280 }
281
282
283 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler* sasm) {
284 __ block_comment("generate_handle_exception");
285
286 bool save_fpu_registers = false;
287
288 // Save registers, if required.
289 OopMapSet* oop_maps = new OopMapSet();
290 OopMap* oop_map = nullptr;
291
292 switch (id) {
293 case forward_exception_id: {
294 save_fpu_registers = HaveVFP;
295 oop_map = generate_oop_map(sasm);
296 __ ldr(Rexception_obj, Address(Rthread, Thread::pending_exception_offset()));
297 __ ldr(Rexception_pc, Address(SP, LR_offset * wordSize));
298 Register zero = __ zero_register(Rtemp);
299 __ str(zero, Address(Rthread, Thread::pending_exception_offset()));
300 break;
301 }
302 case handle_exception_id:
303 save_fpu_registers = HaveVFP;
304 // fall-through
305 case handle_exception_nofpu_id:
306 // At this point all registers MAY be live.
307 oop_map = save_live_registers(sasm, save_fpu_registers);
308 break;
309 case handle_exception_from_callee_id:
310 // At this point all registers except exception oop (R4/R19) and
311 // exception pc (R5/R20) are dead.
312 oop_map = save_live_registers(sasm); // TODO it's not required to save all registers
313 break;
314 default: ShouldNotReachHere();
315 }
316
317 __ str(Rexception_obj, Address(Rthread, JavaThread::exception_oop_offset()));
318 __ str(Rexception_pc, Address(Rthread, JavaThread::exception_pc_offset()));
319
320 __ str(Rexception_pc, Address(SP, LR_offset * wordSize)); // patch throwing pc into return address
321
322 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc));
323 oop_maps->add_gc_map(call_offset, oop_map);
324
325 // Exception handler found
326 __ str(R0, Address(SP, LR_offset * wordSize)); // patch the return address
327
328 // Restore the registers that were saved at the beginning, remove
329 // frame and jump to the exception handler.
330 switch (id) {
331 case forward_exception_id:
332 case handle_exception_nofpu_id:
333 case handle_exception_id:
334 restore_live_registers(sasm, save_fpu_registers);
335 // Note: the restore live registers includes the jump to LR (patched to R0)
336 break;
337 case handle_exception_from_callee_id:
338 restore_live_registers_without_return(sasm); // must not jump immediately to handler
339 restore_sp_for_method_handle(sasm);
340 __ ret();
341 break;
342 default: ShouldNotReachHere();
343 }
344
345 DEBUG_ONLY(STOP("generate_handle_exception");) // Should not reach here
346
347 return oop_maps;
348 }
349
350
351 void Runtime1::generate_unwind_exception(StubAssembler* sasm) {
352
353 if (AbortVMOnException) {
354 save_live_registers(sasm);
355 __ call_VM_leaf(CAST_FROM_FN_PTR(address, check_abort_on_vm_exception), Rexception_obj);
356 restore_live_registers(sasm);
357 }
358
359 // FP no longer used to find the frame start
360 // on entry, remove_frame() has already been called (restoring FP and LR)
361
362 // search the exception handler address of the caller (using the return address)
363 __ mov(c_rarg0, Rthread);
364 __ mov(Rexception_pc, LR);
365 __ mov(c_rarg1, LR);
366 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), c_rarg0, c_rarg1);
367
368 // Exception oop should be still in Rexception_obj and pc in Rexception_pc
369 // Jump to handler
370 __ verify_not_null_oop(Rexception_obj);
371
372 // JSR292 extension
373 restore_sp_for_method_handle(sasm);
374
375 __ jump(R0);
376 }
377
378
379 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) {
380 OopMap* oop_map = save_live_registers(sasm);
381
382 // call the runtime patching routine, returns non-zero if nmethod got deopted.
383 int call_offset = __ call_RT(noreg, noreg, target);
384 OopMapSet* oop_maps = new OopMapSet();
385 oop_maps->add_gc_map(call_offset, oop_map);
386
387 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
388 assert(deopt_blob != nullptr, "deoptimization blob must have been created");
389
390 __ cmp_32(R0, 0);
391
392 restore_live_registers_except_FP_LR(sasm);
393 __ pop(RegisterSet(FP) | RegisterSet(PC), eq);
394
395 // Deoptimization needed
396 // TODO: ARM - no need to restore FP & LR because unpack_with_reexecution() stores them back
397 __ pop(RegisterSet(FP) | RegisterSet(LR));
398
399 __ jump(deopt_blob->unpack_with_reexecution(), relocInfo::runtime_call_type, Rtemp);
400
401 DEBUG_ONLY(STOP("generate_patching");) // Should not reach here
402 return oop_maps;
403 }
404
405
406 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
407 const bool must_gc_arguments = true;
408 const bool dont_gc_arguments = false;
409
410 OopMapSet* oop_maps = nullptr;
411 bool save_fpu_registers = HaveVFP;
412
413 switch (id) {
414 case forward_exception_id:
415 {
416 oop_maps = generate_handle_exception(id, sasm);
417 // does not return on ARM
418 }
419 break;
420
421 case new_instance_id:
422 case fast_new_instance_id:
423 case fast_new_instance_init_check_id:
424 {
425 const Register result = R0;
426 const Register klass = R1;
427
428 OopMap* map = save_live_registers(sasm);
429 int call_offset = __ call_RT(result, noreg, CAST_FROM_FN_PTR(address, new_instance), klass);
430 oop_maps = new OopMapSet();
431 oop_maps->add_gc_map(call_offset, map);
432
433 // MacroAssembler::StoreStore useless (included in the runtime exit path)
434
435 restore_live_registers_except_R0(sasm);
436 }
437 break;
438
439 case counter_overflow_id:
440 {
441 OopMap* oop_map = save_live_registers(sasm);
442 __ ldr(R1, Address(SP, arg1_offset));
443 __ ldr(R2, Address(SP, arg2_offset));
444 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), R1, R2);
445 oop_maps = new OopMapSet();
446 oop_maps->add_gc_map(call_offset, oop_map);
447 restore_live_registers(sasm);
448 }
449 break;
450
451 case new_type_array_id:
452 case new_object_array_id:
453 {
454 if (id == new_type_array_id) {
455 __ set_info("new_type_array", dont_gc_arguments);
456 } else {
457 __ set_info("new_object_array", dont_gc_arguments);
458 }
459
460 const Register result = R0;
461 const Register klass = R1;
462 const Register length = R2;
463
464 OopMap* map = save_live_registers(sasm);
465 int call_offset;
466 if (id == new_type_array_id) {
467 call_offset = __ call_RT(result, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length);
468 } else {
469 call_offset = __ call_RT(result, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length);
470 }
471 oop_maps = new OopMapSet();
472 oop_maps->add_gc_map(call_offset, map);
473
474 // MacroAssembler::StoreStore useless (included in the runtime exit path)
475
476 restore_live_registers_except_R0(sasm);
477 }
478 break;
479
480 case new_multi_array_id:
481 {
482 __ set_info("new_multi_array", dont_gc_arguments);
483
484 // R0: klass
485 // R2: rank
486 // SP: address of 1st dimension
487 const Register result = R0;
488 OopMap* map = save_live_registers(sasm);
489
490 __ mov(R1, R0);
491 __ add(R3, SP, arg1_offset);
492 int call_offset = __ call_RT(result, noreg, CAST_FROM_FN_PTR(address, new_multi_array), R1, R2, R3);
493
494 oop_maps = new OopMapSet();
495 oop_maps->add_gc_map(call_offset, map);
496
497 // MacroAssembler::StoreStore useless (included in the runtime exit path)
498
499 restore_live_registers_except_R0(sasm);
500 }
501 break;
502
503 case register_finalizer_id:
504 {
505 __ set_info("register_finalizer", dont_gc_arguments);
506
507 // Do not call runtime if JVM_ACC_HAS_FINALIZER flag is not set
508 __ load_klass(Rtemp, R0);
509 __ ldr_u32(Rtemp, Address(Rtemp, Klass::access_flags_offset()));
510
511 __ tst(Rtemp, JVM_ACC_HAS_FINALIZER);
512 __ bx(LR, eq);
513
514 // Call VM
515 OopMap* map = save_live_registers(sasm);
516 oop_maps = new OopMapSet();
517 int call_offset = __ call_RT(noreg, noreg,
518 CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), R0);
519 oop_maps->add_gc_map(call_offset, map);
520 restore_live_registers(sasm);
521 }
522 break;
523
524 case throw_range_check_failed_id:
525 {
526 __ set_info("range_check_failed", dont_gc_arguments);
527 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true);
528 }
529 break;
530
531 case throw_index_exception_id:
532 {
533 __ set_info("index_range_check_failed", dont_gc_arguments);
534 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true);
535 }
536 break;
537
538 case throw_div0_exception_id:
539 {
540 __ set_info("throw_div0_exception", dont_gc_arguments);
541 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false);
542 }
543 break;
544
545 case throw_null_pointer_exception_id:
546 {
547 __ set_info("throw_null_pointer_exception", dont_gc_arguments);
548 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false);
549 }
550 break;
551
552 case handle_exception_nofpu_id:
553 case handle_exception_id:
554 {
555 __ set_info("handle_exception", dont_gc_arguments);
556 oop_maps = generate_handle_exception(id, sasm);
557 }
558 break;
559
560 case handle_exception_from_callee_id:
561 {
562 __ set_info("handle_exception_from_callee", dont_gc_arguments);
563 oop_maps = generate_handle_exception(id, sasm);
564 }
565 break;
566
567 case unwind_exception_id:
568 {
569 __ set_info("unwind_exception", dont_gc_arguments);
570 generate_unwind_exception(sasm);
571 }
572 break;
573
574 case throw_array_store_exception_id:
575 {
576 __ set_info("throw_array_store_exception", dont_gc_arguments);
577 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true);
578 }
579 break;
580
581 case throw_class_cast_exception_id:
582 {
583 __ set_info("throw_class_cast_exception", dont_gc_arguments);
584 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true);
585 }
586 break;
587
588 case throw_incompatible_class_change_error_id:
589 {
590 __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments);
591 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false);
592 }
593 break;
594
595 case slow_subtype_check_id:
596 {
597 // (in) R0 - sub, destroyed,
598 // (in) R1 - super, not changed
599 // (out) R0 - result: 1 if check passed, 0 otherwise
600 __ raw_push(R2, R3, LR);
601
602 // Load an array of secondary_supers
603 __ ldr(R2, Address(R0, Klass::secondary_supers_offset()));
604 // Length goes to R3
605 __ ldr_s32(R3, Address(R2, Array<Klass*>::length_offset_in_bytes()));
606 __ add(R2, R2, Array<Klass*>::base_offset_in_bytes());
607
608 Label loop, miss;
609 __ bind(loop);
610 __ cbz(R3, miss);
611 __ ldr(LR, Address(R2, wordSize, post_indexed));
612 __ sub(R3, R3, 1);
613 __ cmp(LR, R1);
614 __ b(loop, ne);
615
616 // We get here if an equal cache entry is found
617 __ str(R1, Address(R0, Klass::secondary_super_cache_offset()));
618 __ mov(R0, 1);
619 __ raw_pop_and_ret(R2, R3);
620
621 // A cache entry not found - return false
622 __ bind(miss);
623 __ mov(R0, 0);
624 __ raw_pop_and_ret(R2, R3);
625 }
626 break;
627
628 case monitorenter_nofpu_id:
629 save_fpu_registers = false;
630 // fall through
631 case monitorenter_id:
632 {
633 __ set_info("monitorenter", dont_gc_arguments);
634 const Register obj = R1;
635 const Register lock = R2;
636 OopMap* map = save_live_registers(sasm, save_fpu_registers);
637 __ ldr(obj, Address(SP, arg1_offset));
638 __ ldr(lock, Address(SP, arg2_offset));
639 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), obj, lock);
640 oop_maps = new OopMapSet();
641 oop_maps->add_gc_map(call_offset, map);
642 restore_live_registers(sasm, save_fpu_registers);
643 }
644 break;
645
646 case monitorexit_nofpu_id:
647 save_fpu_registers = false;
648 // fall through
649 case monitorexit_id:
650 {
651 __ set_info("monitorexit", dont_gc_arguments);
652 const Register lock = R1;
653 OopMap* map = save_live_registers(sasm, save_fpu_registers);
654 __ ldr(lock, Address(SP, arg1_offset));
655 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), lock);
656 oop_maps = new OopMapSet();
657 oop_maps->add_gc_map(call_offset, map);
658 restore_live_registers(sasm, save_fpu_registers);
659 }
660 break;
661
662 case deoptimize_id:
663 {
664 __ set_info("deoptimize", dont_gc_arguments);
665 OopMap* oop_map = save_live_registers(sasm);
666 const Register trap_request = R1;
667 __ ldr(trap_request, Address(SP, arg1_offset));
668 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize), trap_request);
669 oop_maps = new OopMapSet();
670 oop_maps->add_gc_map(call_offset, oop_map);
671 restore_live_registers_without_return(sasm);
672 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
673 assert(deopt_blob != nullptr, "deoptimization blob must have been created");
674 __ jump(deopt_blob->unpack_with_reexecution(), relocInfo::runtime_call_type, noreg);
675 }
676 break;
677
678 case access_field_patching_id:
679 {
680 __ set_info("access_field_patching", dont_gc_arguments);
681 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching));
682 }
683 break;
684
685 case load_klass_patching_id:
686 {
687 __ set_info("load_klass_patching", dont_gc_arguments);
688 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching));
689 }
690 break;
691
692 case load_appendix_patching_id:
693 {
694 __ set_info("load_appendix_patching", dont_gc_arguments);
695 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching));
696 }
697 break;
698
699 case load_mirror_patching_id:
700 {
701 __ set_info("load_mirror_patching", dont_gc_arguments);
702 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching));
703 }
704 break;
705
706 case predicate_failed_trap_id:
707 {
708 __ set_info("predicate_failed_trap", dont_gc_arguments);
709
710 OopMap* oop_map = save_live_registers(sasm);
711 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap));
712
713 oop_maps = new OopMapSet();
714 oop_maps->add_gc_map(call_offset, oop_map);
715
716 restore_live_registers_without_return(sasm);
717
718 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
719 assert(deopt_blob != nullptr, "deoptimization blob must have been created");
720 __ jump(deopt_blob->unpack_with_reexecution(), relocInfo::runtime_call_type, Rtemp);
721 }
722 break;
723
724 default:
725 {
726 __ set_info("unimplemented entry", dont_gc_arguments);
727 STOP("unimplemented entry");
728 }
729 break;
730 }
731 return oop_maps;
732 }
733
734 #undef __
735
736 #ifdef __SOFTFP__
737 const char *Runtime1::pd_name_for_address(address entry) {
738
739 #define FUNCTION_CASE(a, f) \
740 if ((intptr_t)a == CAST_FROM_FN_PTR(intptr_t, f)) return #f
741
742 FUNCTION_CASE(entry, __aeabi_fadd_glibc);
743 FUNCTION_CASE(entry, __aeabi_fmul);
744 FUNCTION_CASE(entry, __aeabi_fsub_glibc);
745 FUNCTION_CASE(entry, __aeabi_fdiv);
746
747 // __aeabi_XXXX_glibc: Imported code from glibc soft-fp bundle for calculation accuracy improvement. See CR 6757269.
748 FUNCTION_CASE(entry, __aeabi_dadd_glibc);
749 FUNCTION_CASE(entry, __aeabi_dmul);
750 FUNCTION_CASE(entry, __aeabi_dsub_glibc);
751 FUNCTION_CASE(entry, __aeabi_ddiv);
752
753 FUNCTION_CASE(entry, __aeabi_f2d);
754 FUNCTION_CASE(entry, __aeabi_d2f);
755 FUNCTION_CASE(entry, __aeabi_i2f);
756 FUNCTION_CASE(entry, __aeabi_i2d);
757 FUNCTION_CASE(entry, __aeabi_f2iz);
758
759 FUNCTION_CASE(entry, SharedRuntime::fcmpl);
760 FUNCTION_CASE(entry, SharedRuntime::fcmpg);
761 FUNCTION_CASE(entry, SharedRuntime::dcmpl);
762 FUNCTION_CASE(entry, SharedRuntime::dcmpg);
763
764 FUNCTION_CASE(entry, SharedRuntime::unordered_fcmplt);
765 FUNCTION_CASE(entry, SharedRuntime::unordered_dcmplt);
766 FUNCTION_CASE(entry, SharedRuntime::unordered_fcmple);
767 FUNCTION_CASE(entry, SharedRuntime::unordered_dcmple);
768 FUNCTION_CASE(entry, SharedRuntime::unordered_fcmpge);
769 FUNCTION_CASE(entry, SharedRuntime::unordered_dcmpge);
770 FUNCTION_CASE(entry, SharedRuntime::unordered_fcmpgt);
771 FUNCTION_CASE(entry, SharedRuntime::unordered_dcmpgt);
772
773 FUNCTION_CASE(entry, SharedRuntime::fneg);
774 FUNCTION_CASE(entry, SharedRuntime::dneg);
775
776 FUNCTION_CASE(entry, __aeabi_fcmpeq);
777 FUNCTION_CASE(entry, __aeabi_fcmplt);
778 FUNCTION_CASE(entry, __aeabi_fcmple);
779 FUNCTION_CASE(entry, __aeabi_fcmpge);
780 FUNCTION_CASE(entry, __aeabi_fcmpgt);
781
782 FUNCTION_CASE(entry, __aeabi_dcmpeq);
783 FUNCTION_CASE(entry, __aeabi_dcmplt);
784 FUNCTION_CASE(entry, __aeabi_dcmple);
785 FUNCTION_CASE(entry, __aeabi_dcmpge);
786 FUNCTION_CASE(entry, __aeabi_dcmpgt);
787 #undef FUNCTION_CASE
788 return "";
789 }
790 #else // __SOFTFP__
791 const char *Runtime1::pd_name_for_address(address entry) {
792 return "<unknown function>";
793 }
794 #endif // __SOFTFP__