1 /*
2 * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #include "precompiled.hpp"
27 #include "asm/assembler.hpp"
28 #include "c1/c1_CodeStubs.hpp"
29 #include "c1/c1_Defs.hpp"
30 #include "c1/c1_MacroAssembler.hpp"
31 #include "c1/c1_Runtime1.hpp"
32 #include "compiler/disassembler.hpp"
33 #include "gc/shared/cardTable.hpp"
34 #include "gc/shared/cardTableModRefBS.hpp"
35 #include "interpreter/interpreter.hpp"
36 #include "nativeInst_aarch64.hpp"
37 #include "oops/compiledICHolder.hpp"
38 #include "oops/oop.inline.hpp"
39 #include "prims/jvmtiExport.hpp"
40 #include "register_aarch64.hpp"
41 #include "runtime/sharedRuntime.hpp"
42 #include "runtime/signature.hpp"
43 #include "runtime/vframe.hpp"
44 #include "runtime/vframeArray.hpp"
45 #include "vmreg_aarch64.inline.hpp"
46 #if INCLUDE_ALL_GCS
47 #include "gc/g1/g1CardTable.hpp"
48 #include "gc/g1/g1SATBCardTableModRefBS.hpp"
49 #endif
50
51
52 // Implementation of StubAssembler
53
54 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, int args_size) {
55 // setup registers
56 assert(!(oop_result1->is_valid() || metadata_result->is_valid()) || oop_result1 != metadata_result, "registers must be different");
57 assert(oop_result1 != rthread && metadata_result != rthread, "registers must be different");
58 assert(args_size >= 0, "illegal args_size");
59 bool align_stack = false;
60
61 mov(c_rarg0, rthread);
62 set_num_rt_args(0); // Nothing on stack
63
64 Label retaddr;
65 set_last_Java_frame(sp, rfp, retaddr, rscratch1);
66
67 // do the call
68 lea(rscratch1, RuntimeAddress(entry));
69 blrt(rscratch1, args_size + 1, 8, 1);
70 bind(retaddr);
71 int call_offset = offset();
72 // verify callee-saved register
73 #ifdef ASSERT
74 push(r0, sp);
75 { Label L;
76 get_thread(r0);
77 cmp(rthread, r0);
78 br(Assembler::EQ, L);
79 stop("StubAssembler::call_RT: rthread not callee saved?");
80 bind(L);
81 }
82 pop(r0, sp);
83 #endif
84 reset_last_Java_frame(true);
85 maybe_isb();
86
87 // check for pending exceptions
88 { Label L;
89 // check for pending exceptions (java_thread is set upon return)
90 ldr(rscratch1, Address(rthread, in_bytes(Thread::pending_exception_offset())));
91 cbz(rscratch1, L);
92 // exception pending => remove activation and forward to exception handler
93 // make sure that the vm_results are cleared
94 if (oop_result1->is_valid()) {
95 str(zr, Address(rthread, JavaThread::vm_result_offset()));
96 }
97 if (metadata_result->is_valid()) {
98 str(zr, Address(rthread, JavaThread::vm_result_2_offset()));
99 }
100 if (frame_size() == no_frame_size) {
101 leave();
102 far_jump(RuntimeAddress(StubRoutines::forward_exception_entry()));
103 } else if (_stub_id == Runtime1::forward_exception_id) {
104 should_not_reach_here();
105 } else {
106 far_jump(RuntimeAddress(Runtime1::entry_for(Runtime1::forward_exception_id)));
107 }
108 bind(L);
109 }
110 // get oop results if there are any and reset the values in the thread
111 if (oop_result1->is_valid()) {
112 get_vm_result(oop_result1, rthread);
113 }
114 if (metadata_result->is_valid()) {
115 get_vm_result_2(metadata_result, rthread);
116 }
117 return call_offset;
118 }
119
120
121 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) {
122 mov(c_rarg1, arg1);
123 return call_RT(oop_result1, metadata_result, entry, 1);
124 }
125
126
127 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) {
128 if (c_rarg1 == arg2) {
129 if (c_rarg2 == arg1) {
130 mov(rscratch1, arg1);
131 mov(arg1, arg2);
132 mov(arg2, rscratch1);
133 } else {
134 mov(c_rarg2, arg2);
135 mov(c_rarg1, arg1);
136 }
137 } else {
138 mov(c_rarg1, arg1);
139 mov(c_rarg2, arg2);
140 }
141 return call_RT(oop_result1, metadata_result, entry, 2);
142 }
143
144
145 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) {
146 // if there is any conflict use the stack
147 if (arg1 == c_rarg2 || arg1 == c_rarg3 ||
148 arg2 == c_rarg1 || arg1 == c_rarg3 ||
149 arg3 == c_rarg1 || arg1 == c_rarg2) {
150 stp(arg3, arg2, Address(pre(sp, 2 * wordSize)));
151 stp(arg1, zr, Address(pre(sp, -2 * wordSize)));
152 ldp(c_rarg1, zr, Address(post(sp, 2 * wordSize)));
153 ldp(c_rarg3, c_rarg2, Address(post(sp, 2 * wordSize)));
154 } else {
155 mov(c_rarg1, arg1);
156 mov(c_rarg2, arg2);
157 mov(c_rarg3, arg3);
158 }
159 return call_RT(oop_result1, metadata_result, entry, 3);
160 }
161
162 // Implementation of StubFrame
163
164 class StubFrame: public StackObj {
165 private:
166 StubAssembler* _sasm;
167
168 public:
169 StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments);
170 void load_argument(int offset_in_words, Register reg);
171
172 ~StubFrame();
173 };;
174
175
176 #define __ _sasm->
177
178 StubFrame::StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments) {
179 _sasm = sasm;
180 __ set_info(name, must_gc_arguments);
181 __ enter();
182 }
183
184 // load parameters that were stored with LIR_Assembler::store_parameter
185 // Note: offsets for store_parameter and load_argument must match
186 void StubFrame::load_argument(int offset_in_words, Register reg) {
187 // rbp, + 0: link
188 // + 1: return address
189 // + 2: argument with offset 0
190 // + 3: argument with offset 1
191 // + 4: ...
192
193 __ ldr(reg, Address(rfp, (offset_in_words + 2) * BytesPerWord));
194 }
195
196
197 StubFrame::~StubFrame() {
198 __ leave();
199 __ ret(lr);
200 }
201
202 #undef __
203
204
205 // Implementation of Runtime1
206
207 #define __ sasm->
208
209 const int float_regs_as_doubles_size_in_slots = pd_nof_fpu_regs_frame_map * 2;
210
211 // Stack layout for saving/restoring all the registers needed during a runtime
212 // call (this includes deoptimization)
213 // Note: note that users of this frame may well have arguments to some runtime
214 // while these values are on the stack. These positions neglect those arguments
215 // but the code in save_live_registers will take the argument count into
216 // account.
217 //
218
219 enum reg_save_layout {
220 reg_save_frame_size = 32 /* float */ + 32 /* integer */
221 };
222
223 // Save off registers which might be killed by calls into the runtime.
224 // Tries to smart of about FP registers. In particular we separate
225 // saving and describing the FPU registers for deoptimization since we
226 // have to save the FPU registers twice if we describe them. The
227 // deopt blob is the only thing which needs to describe FPU registers.
228 // In all other cases it should be sufficient to simply save their
229 // current value.
230
231 static int cpu_reg_save_offsets[FrameMap::nof_cpu_regs];
232 static int fpu_reg_save_offsets[FrameMap::nof_fpu_regs];
233 static int reg_save_size_in_words;
234 static int frame_size_in_bytes = -1;
235
236 static OopMap* generate_oop_map(StubAssembler* sasm, bool save_fpu_registers) {
237 int frame_size_in_bytes = reg_save_frame_size * BytesPerWord;
238 sasm->set_frame_size(frame_size_in_bytes / BytesPerWord);
239 int frame_size_in_slots = frame_size_in_bytes / sizeof(jint);
240 OopMap* oop_map = new OopMap(frame_size_in_slots, 0);
241
242 for (int i = 0; i < FrameMap::nof_cpu_regs; i++) {
243 Register r = as_Register(i);
244 if (i <= 18 && i != rscratch1->encoding() && i != rscratch2->encoding()) {
245 int sp_offset = cpu_reg_save_offsets[i];
246 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset),
247 r->as_VMReg());
248 }
249 }
250
251 if (save_fpu_registers) {
252 for (int i = 0; i < FrameMap::nof_fpu_regs; i++) {
253 FloatRegister r = as_FloatRegister(i);
254 {
255 int sp_offset = fpu_reg_save_offsets[i];
256 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset),
257 r->as_VMReg());
258 }
259 }
260 }
261 return oop_map;
262 }
263
264 static OopMap* save_live_registers(StubAssembler* sasm,
265 bool save_fpu_registers = true) {
266 __ block_comment("save_live_registers");
267
268 __ push(RegSet::range(r0, r29), sp); // integer registers except lr & sp
269
270 if (save_fpu_registers) {
271 for (int i = 30; i >= 0; i -= 2)
272 __ stpd(as_FloatRegister(i), as_FloatRegister(i+1),
273 Address(__ pre(sp, -2 * wordSize)));
274 } else {
275 __ add(sp, sp, -32 * wordSize);
276 }
277
278 return generate_oop_map(sasm, save_fpu_registers);
279 }
280
281 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) {
282 if (restore_fpu_registers) {
283 for (int i = 0; i < 32; i += 2)
284 __ ldpd(as_FloatRegister(i), as_FloatRegister(i+1),
285 Address(__ post(sp, 2 * wordSize)));
286 } else {
287 __ add(sp, sp, 32 * wordSize);
288 }
289
290 __ pop(RegSet::range(r0, r29), sp);
291 }
292
293 static void restore_live_registers_except_r0(StubAssembler* sasm, bool restore_fpu_registers = true) {
294
295 if (restore_fpu_registers) {
296 for (int i = 0; i < 32; i += 2)
297 __ ldpd(as_FloatRegister(i), as_FloatRegister(i+1),
298 Address(__ post(sp, 2 * wordSize)));
299 } else {
300 __ add(sp, sp, 32 * wordSize);
301 }
302
303 __ ldp(zr, r1, Address(__ post(sp, 16)));
304 __ pop(RegSet::range(r2, r29), sp);
305 }
306
307
308
309 void Runtime1::initialize_pd() {
310 int i;
311 int sp_offset = 0;
312
313 // all float registers are saved explicitly
314 assert(FrameMap::nof_fpu_regs == 32, "double registers not handled here");
315 for (i = 0; i < FrameMap::nof_fpu_regs; i++) {
316 fpu_reg_save_offsets[i] = sp_offset;
317 sp_offset += 2; // SP offsets are in halfwords
318 }
319
320 for (i = 0; i < FrameMap::nof_cpu_regs; i++) {
321 Register r = as_Register(i);
322 cpu_reg_save_offsets[i] = sp_offset;
323 sp_offset += 2; // SP offsets are in halfwords
324 }
325 }
326
327
328 // target: the entry point of the method that creates and posts the exception oop
329 // has_argument: true if the exception needs an argument (passed in rscratch1)
330
331 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) {
332 // make a frame and preserve the caller's caller-save registers
333 OopMap* oop_map = save_live_registers(sasm);
334 int call_offset;
335 if (!has_argument) {
336 call_offset = __ call_RT(noreg, noreg, target);
337 } else {
338 call_offset = __ call_RT(noreg, noreg, target, rscratch1);
339 }
340 OopMapSet* oop_maps = new OopMapSet();
341 oop_maps->add_gc_map(call_offset, oop_map);
342
343 __ should_not_reach_here();
344 return oop_maps;
345 }
346
347
348 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler *sasm) {
349 __ block_comment("generate_handle_exception");
350
351 // incoming parameters
352 const Register exception_oop = r0;
353 const Register exception_pc = r3;
354 // other registers used in this stub
355
356 // Save registers, if required.
357 OopMapSet* oop_maps = new OopMapSet();
358 OopMap* oop_map = NULL;
359 switch (id) {
360 case forward_exception_id:
361 // We're handling an exception in the context of a compiled frame.
362 // The registers have been saved in the standard places. Perform
363 // an exception lookup in the caller and dispatch to the handler
364 // if found. Otherwise unwind and dispatch to the callers
365 // exception handler.
366 oop_map = generate_oop_map(sasm, 1 /*thread*/);
367
368 // load and clear pending exception oop into r0
369 __ ldr(exception_oop, Address(rthread, Thread::pending_exception_offset()));
370 __ str(zr, Address(rthread, Thread::pending_exception_offset()));
371
372 // load issuing PC (the return address for this stub) into r3
373 __ ldr(exception_pc, Address(rfp, 1*BytesPerWord));
374
375 // make sure that the vm_results are cleared (may be unnecessary)
376 __ str(zr, Address(rthread, JavaThread::vm_result_offset()));
377 __ str(zr, Address(rthread, JavaThread::vm_result_2_offset()));
378 break;
379 case handle_exception_nofpu_id:
380 case handle_exception_id:
381 // At this point all registers MAY be live.
382 oop_map = save_live_registers(sasm, id != handle_exception_nofpu_id);
383 break;
384 case handle_exception_from_callee_id: {
385 // At this point all registers except exception oop (r0) and
386 // exception pc (lr) are dead.
387 const int frame_size = 2 /*fp, return address*/;
388 oop_map = new OopMap(frame_size * VMRegImpl::slots_per_word, 0);
389 sasm->set_frame_size(frame_size);
390 break;
391 }
392 default:
393 __ should_not_reach_here();
394 break;
395 }
396
397 // verify that only r0 and r3 are valid at this time
398 __ invalidate_registers(false, true, true, false, true, true);
399 // verify that r0 contains a valid exception
400 __ verify_not_null_oop(exception_oop);
401
402 #ifdef ASSERT
403 // check that fields in JavaThread for exception oop and issuing pc are
404 // empty before writing to them
405 Label oop_empty;
406 __ ldr(rscratch1, Address(rthread, JavaThread::exception_oop_offset()));
407 __ cbz(rscratch1, oop_empty);
408 __ stop("exception oop already set");
409 __ bind(oop_empty);
410
411 Label pc_empty;
412 __ ldr(rscratch1, Address(rthread, JavaThread::exception_pc_offset()));
413 __ cbz(rscratch1, pc_empty);
414 __ stop("exception pc already set");
415 __ bind(pc_empty);
416 #endif
417
418 // save exception oop and issuing pc into JavaThread
419 // (exception handler will load it from here)
420 __ str(exception_oop, Address(rthread, JavaThread::exception_oop_offset()));
421 __ str(exception_pc, Address(rthread, JavaThread::exception_pc_offset()));
422
423 // patch throwing pc into return address (has bci & oop map)
424 __ str(exception_pc, Address(rfp, 1*BytesPerWord));
425
426 // compute the exception handler.
427 // the exception oop and the throwing pc are read from the fields in JavaThread
428 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc));
429 oop_maps->add_gc_map(call_offset, oop_map);
430
431 // r0: handler address
432 // will be the deopt blob if nmethod was deoptimized while we looked up
433 // handler regardless of whether handler existed in the nmethod.
434
435 // only r0 is valid at this time, all other registers have been destroyed by the runtime call
436 __ invalidate_registers(false, true, true, true, true, true);
437
438 // patch the return address, this stub will directly return to the exception handler
439 __ str(r0, Address(rfp, 1*BytesPerWord));
440
441 switch (id) {
442 case forward_exception_id:
443 case handle_exception_nofpu_id:
444 case handle_exception_id:
445 // Restore the registers that were saved at the beginning.
446 restore_live_registers(sasm, id != handle_exception_nofpu_id);
447 break;
448 case handle_exception_from_callee_id:
449 // Pop the return address.
450 __ leave();
451 __ ret(lr); // jump to exception handler
452 break;
453 default: ShouldNotReachHere();
454 }
455
456 return oop_maps;
457 }
458
459
460 void Runtime1::generate_unwind_exception(StubAssembler *sasm) {
461 // incoming parameters
462 const Register exception_oop = r0;
463 // callee-saved copy of exception_oop during runtime call
464 const Register exception_oop_callee_saved = r19;
465 // other registers used in this stub
466 const Register exception_pc = r3;
467 const Register handler_addr = r1;
468
469 // verify that only r0, is valid at this time
470 __ invalidate_registers(false, true, true, true, true, true);
471
472 #ifdef ASSERT
473 // check that fields in JavaThread for exception oop and issuing pc are empty
474 Label oop_empty;
475 __ ldr(rscratch1, Address(rthread, JavaThread::exception_oop_offset()));
476 __ cbz(rscratch1, oop_empty);
477 __ stop("exception oop must be empty");
478 __ bind(oop_empty);
479
480 Label pc_empty;
481 __ ldr(rscratch1, Address(rthread, JavaThread::exception_pc_offset()));
482 __ cbz(rscratch1, pc_empty);
483 __ stop("exception pc must be empty");
484 __ bind(pc_empty);
485 #endif
486
487 // Save our return address because
488 // exception_handler_for_return_address will destroy it. We also
489 // save exception_oop
490 __ stp(lr, exception_oop, Address(__ pre(sp, -2 * wordSize)));
491
492 // search the exception handler address of the caller (using the return address)
493 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), rthread, lr);
494 // r0: exception handler address of the caller
495
496 // Only R0 is valid at this time; all other registers have been
497 // destroyed by the call.
498 __ invalidate_registers(false, true, true, true, false, true);
499
500 // move result of call into correct register
501 __ mov(handler_addr, r0);
502
503 // get throwing pc (= return address).
504 // lr has been destroyed by the call
505 __ ldp(lr, exception_oop, Address(__ post(sp, 2 * wordSize)));
506 __ mov(r3, lr);
507
508 __ verify_not_null_oop(exception_oop);
509
510 // continue at exception handler (return address removed)
511 // note: do *not* remove arguments when unwinding the
512 // activation since the caller assumes having
513 // all arguments on the stack when entering the
514 // runtime to determine the exception handler
515 // (GC happens at call site with arguments!)
516 // r0: exception oop
517 // r3: throwing pc
518 // r1: exception handler
519 __ br(handler_addr);
520 }
521
522
523
524 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) {
525 // use the maximum number of runtime-arguments here because it is difficult to
526 // distinguish each RT-Call.
527 // Note: This number affects also the RT-Call in generate_handle_exception because
528 // the oop-map is shared for all calls.
529 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
530 assert(deopt_blob != NULL, "deoptimization blob must have been created");
531
532 OopMap* oop_map = save_live_registers(sasm);
533
534 __ mov(c_rarg0, rthread);
535 Label retaddr;
536 __ set_last_Java_frame(sp, rfp, retaddr, rscratch1);
537 // do the call
538 __ lea(rscratch1, RuntimeAddress(target));
539 __ blrt(rscratch1, 1, 0, 1);
540 __ bind(retaddr);
541 OopMapSet* oop_maps = new OopMapSet();
542 oop_maps->add_gc_map(__ offset(), oop_map);
543 // verify callee-saved register
544 #ifdef ASSERT
545 { Label L;
546 __ get_thread(rscratch1);
547 __ cmp(rthread, rscratch1);
548 __ br(Assembler::EQ, L);
549 __ stop("StubAssembler::call_RT: rthread not callee saved?");
550 __ bind(L);
551 }
552 #endif
553 __ reset_last_Java_frame(true);
554 __ maybe_isb();
555
556 // check for pending exceptions
557 { Label L;
558 __ ldr(rscratch1, Address(rthread, Thread::pending_exception_offset()));
559 __ cbz(rscratch1, L);
560 // exception pending => remove activation and forward to exception handler
561
562 { Label L1;
563 __ cbnz(r0, L1); // have we deoptimized?
564 __ far_jump(RuntimeAddress(Runtime1::entry_for(Runtime1::forward_exception_id)));
565 __ bind(L1);
566 }
567
568 // the deopt blob expects exceptions in the special fields of
569 // JavaThread, so copy and clear pending exception.
570
571 // load and clear pending exception
572 __ ldr(r0, Address(rthread, Thread::pending_exception_offset()));
573 __ str(zr, Address(rthread, Thread::pending_exception_offset()));
574
575 // check that there is really a valid exception
576 __ verify_not_null_oop(r0);
577
578 // load throwing pc: this is the return address of the stub
579 __ mov(r3, lr);
580
581 #ifdef ASSERT
582 // check that fields in JavaThread for exception oop and issuing pc are empty
583 Label oop_empty;
584 __ ldr(rscratch1, Address(rthread, Thread::pending_exception_offset()));
585 __ cbz(rscratch1, oop_empty);
586 __ stop("exception oop must be empty");
587 __ bind(oop_empty);
588
589 Label pc_empty;
590 __ ldr(rscratch1, Address(rthread, JavaThread::exception_pc_offset()));
591 __ cbz(rscratch1, pc_empty);
592 __ stop("exception pc must be empty");
593 __ bind(pc_empty);
594 #endif
595
596 // store exception oop and throwing pc to JavaThread
597 __ str(r0, Address(rthread, JavaThread::exception_oop_offset()));
598 __ str(r3, Address(rthread, JavaThread::exception_pc_offset()));
599
600 restore_live_registers(sasm);
601
602 __ leave();
603
604 // Forward the exception directly to deopt blob. We can blow no
605 // registers and must leave throwing pc on the stack. A patch may
606 // have values live in registers so the entry point with the
607 // exception in tls.
608 __ far_jump(RuntimeAddress(deopt_blob->unpack_with_exception_in_tls()));
609
610 __ bind(L);
611 }
612
613
614 // Runtime will return true if the nmethod has been deoptimized during
615 // the patching process. In that case we must do a deopt reexecute instead.
616
617 Label reexecuteEntry, cont;
618
619 __ cbz(r0, cont); // have we deoptimized?
620
621 // Will reexecute. Proper return address is already on the stack we just restore
622 // registers, pop all of our frame but the return address and jump to the deopt blob
623 restore_live_registers(sasm);
624 __ leave();
625 __ far_jump(RuntimeAddress(deopt_blob->unpack_with_reexecution()));
626
627 __ bind(cont);
628 restore_live_registers(sasm);
629 __ leave();
630 __ ret(lr);
631
632 return oop_maps;
633 }
634
635
636 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
637
638 const Register exception_oop = r0;
639 const Register exception_pc = r3;
640
641 // for better readability
642 const bool must_gc_arguments = true;
643 const bool dont_gc_arguments = false;
644
645 // default value; overwritten for some optimized stubs that are called from methods that do not use the fpu
646 bool save_fpu_registers = true;
647
648 // stub code & info for the different stubs
649 OopMapSet* oop_maps = NULL;
650 OopMap* oop_map = NULL;
651 switch (id) {
652 {
653 case forward_exception_id:
654 {
655 oop_maps = generate_handle_exception(id, sasm);
656 __ leave();
657 __ ret(lr);
658 }
659 break;
660
661 case throw_div0_exception_id:
662 { StubFrame f(sasm, "throw_div0_exception", dont_gc_arguments);
663 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false);
664 }
665 break;
666
667 case throw_null_pointer_exception_id:
668 { StubFrame f(sasm, "throw_null_pointer_exception", dont_gc_arguments);
669 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false);
670 }
671 break;
672
673 case new_instance_id:
674 case fast_new_instance_id:
675 case fast_new_instance_init_check_id:
676 {
677 Register klass = r3; // Incoming
678 Register obj = r0; // Result
679
680 if (id == new_instance_id) {
681 __ set_info("new_instance", dont_gc_arguments);
682 } else if (id == fast_new_instance_id) {
683 __ set_info("fast new_instance", dont_gc_arguments);
684 } else {
685 assert(id == fast_new_instance_init_check_id, "bad StubID");
686 __ set_info("fast new_instance init check", dont_gc_arguments);
687 }
688
689 if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) &&
690 UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
691 Label slow_path;
692 Register obj_size = r2;
693 Register t1 = r19;
694 Register t2 = r4;
695 assert_different_registers(klass, obj, obj_size, t1, t2);
696
697 __ stp(r19, zr, Address(__ pre(sp, -2 * wordSize)));
698
699 if (id == fast_new_instance_init_check_id) {
700 // make sure the klass is initialized
701 __ ldrb(rscratch1, Address(klass, InstanceKlass::init_state_offset()));
702 __ cmpw(rscratch1, InstanceKlass::fully_initialized);
703 __ br(Assembler::NE, slow_path);
704 }
705
706 #ifdef ASSERT
707 // assert object can be fast path allocated
708 {
709 Label ok, not_ok;
710 __ ldrw(obj_size, Address(klass, Klass::layout_helper_offset()));
711 __ cmp(obj_size, 0u);
712 __ br(Assembler::LE, not_ok); // make sure it's an instance (LH > 0)
713 __ tstw(obj_size, Klass::_lh_instance_slow_path_bit);
714 __ br(Assembler::EQ, ok);
715 __ bind(not_ok);
716 __ stop("assert(can be fast path allocated)");
717 __ should_not_reach_here();
718 __ bind(ok);
719 }
720 #endif // ASSERT
721
722 // get the instance size (size is postive so movl is fine for 64bit)
723 __ ldrw(obj_size, Address(klass, Klass::layout_helper_offset()));
724
725 __ eden_allocate(obj, obj_size, 0, t1, slow_path);
726 __ incr_allocated_bytes(rthread, obj_size, 0, rscratch1);
727
728 __ initialize_object(obj, klass, obj_size, 0, t1, t2, /* is_tlab_allocated */ false);
729 __ verify_oop(obj);
730 __ ldp(r19, zr, Address(__ post(sp, 2 * wordSize)));
731 __ ret(lr);
732
733 __ bind(slow_path);
734 __ ldp(r19, zr, Address(__ post(sp, 2 * wordSize)));
735 }
736
737 __ enter();
738 OopMap* map = save_live_registers(sasm);
739 int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass);
740 oop_maps = new OopMapSet();
741 oop_maps->add_gc_map(call_offset, map);
742 restore_live_registers_except_r0(sasm);
743 __ verify_oop(obj);
744 __ leave();
745 __ ret(lr);
746
747 // r0,: new instance
748 }
749
750 break;
751
752 case counter_overflow_id:
753 {
754 Register bci = r0, method = r1;
755 __ enter();
756 OopMap* map = save_live_registers(sasm);
757 // Retrieve bci
758 __ ldrw(bci, Address(rfp, 2*BytesPerWord));
759 // And a pointer to the Method*
760 __ ldr(method, Address(rfp, 3*BytesPerWord));
761 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), bci, method);
762 oop_maps = new OopMapSet();
763 oop_maps->add_gc_map(call_offset, map);
764 restore_live_registers(sasm);
765 __ leave();
766 __ ret(lr);
767 }
768 break;
769
770 case new_type_array_id:
771 case new_object_array_id:
772 {
773 Register length = r19; // Incoming
774 Register klass = r3; // Incoming
775 Register obj = r0; // Result
776
777 if (id == new_type_array_id) {
778 __ set_info("new_type_array", dont_gc_arguments);
779 } else {
780 __ set_info("new_object_array", dont_gc_arguments);
781 }
782
783 #ifdef ASSERT
784 // assert object type is really an array of the proper kind
785 {
786 Label ok;
787 Register t0 = obj;
788 __ ldrw(t0, Address(klass, Klass::layout_helper_offset()));
789 __ asrw(t0, t0, Klass::_lh_array_tag_shift);
790 int tag = ((id == new_type_array_id)
791 ? Klass::_lh_array_tag_type_value
792 : Klass::_lh_array_tag_obj_value);
793 __ mov(rscratch1, tag);
794 __ cmpw(t0, rscratch1);
795 __ br(Assembler::EQ, ok);
796 __ stop("assert(is an array klass)");
797 __ should_not_reach_here();
798 __ bind(ok);
799 }
800 #endif // ASSERT
801
802 if (UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
803 Register arr_size = r4;
804 Register t1 = r2;
805 Register t2 = r5;
806 Label slow_path;
807 assert_different_registers(length, klass, obj, arr_size, t1, t2);
808
809 // check that array length is small enough for fast path.
810 __ mov(rscratch1, C1_MacroAssembler::max_array_allocation_length);
811 __ cmpw(length, rscratch1);
812 __ br(Assembler::HI, slow_path);
813
814 // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F))
815 // since size is positive ldrw does right thing on 64bit
816 __ ldrw(t1, Address(klass, Klass::layout_helper_offset()));
817 // since size is positive movw does right thing on 64bit
818 __ movw(arr_size, length);
819 __ lslvw(arr_size, length, t1);
820 __ ubfx(t1, t1, Klass::_lh_header_size_shift,
821 exact_log2(Klass::_lh_header_size_mask + 1));
822 __ add(arr_size, arr_size, t1);
823 __ add(arr_size, arr_size, MinObjAlignmentInBytesMask); // align up
824 __ andr(arr_size, arr_size, ~MinObjAlignmentInBytesMask);
825
826 __ eden_allocate(obj, arr_size, 0, t1, slow_path); // preserves arr_size
827 __ incr_allocated_bytes(rthread, arr_size, 0, rscratch1);
828
829 __ initialize_header(obj, klass, length, t1, t2);
830 __ ldrb(t1, Address(klass, in_bytes(Klass::layout_helper_offset()) + (Klass::_lh_header_size_shift / BitsPerByte)));
831 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise");
832 assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise");
833 __ andr(t1, t1, Klass::_lh_header_size_mask);
834 __ sub(arr_size, arr_size, t1); // body length
835 __ add(t1, t1, obj); // body start
836 __ initialize_body(t1, arr_size, 0, t2);
837 __ verify_oop(obj);
838
839 __ ret(lr);
840
841 __ bind(slow_path);
842 }
843
844 __ enter();
845 OopMap* map = save_live_registers(sasm);
846 int call_offset;
847 if (id == new_type_array_id) {
848 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length);
849 } else {
850 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length);
851 }
852
853 oop_maps = new OopMapSet();
854 oop_maps->add_gc_map(call_offset, map);
855 restore_live_registers_except_r0(sasm);
856
857 __ verify_oop(obj);
858 __ leave();
859 __ ret(lr);
860
861 // r0: new array
862 }
863 break;
864
865 case new_multi_array_id:
866 { StubFrame f(sasm, "new_multi_array", dont_gc_arguments);
867 // r0,: klass
868 // r19,: rank
869 // r2: address of 1st dimension
870 OopMap* map = save_live_registers(sasm);
871 __ mov(c_rarg1, r0);
872 __ mov(c_rarg3, r2);
873 __ mov(c_rarg2, r19);
874 int call_offset = __ call_RT(r0, noreg, CAST_FROM_FN_PTR(address, new_multi_array), r1, r2, r3);
875
876 oop_maps = new OopMapSet();
877 oop_maps->add_gc_map(call_offset, map);
878 restore_live_registers_except_r0(sasm);
879
880 // r0,: new multi array
881 __ verify_oop(r0);
882 }
883 break;
884
885 case register_finalizer_id:
886 {
887 __ set_info("register_finalizer", dont_gc_arguments);
888
889 // This is called via call_runtime so the arguments
890 // will be place in C abi locations
891
892 __ verify_oop(c_rarg0);
893
894 // load the klass and check the has finalizer flag
895 Label register_finalizer;
896 Register t = r5;
897 __ load_klass(t, r0);
898 __ ldrw(t, Address(t, Klass::access_flags_offset()));
899 __ tbnz(t, exact_log2(JVM_ACC_HAS_FINALIZER), register_finalizer);
900 __ ret(lr);
901
902 __ bind(register_finalizer);
903 __ enter();
904 OopMap* oop_map = save_live_registers(sasm);
905 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), r0);
906 oop_maps = new OopMapSet();
907 oop_maps->add_gc_map(call_offset, oop_map);
908
909 // Now restore all the live registers
910 restore_live_registers(sasm);
911
912 __ leave();
913 __ ret(lr);
914 }
915 break;
916
917 case throw_class_cast_exception_id:
918 { StubFrame f(sasm, "throw_class_cast_exception", dont_gc_arguments);
919 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true);
920 }
921 break;
922
923 case throw_incompatible_class_change_error_id:
924 { StubFrame f(sasm, "throw_incompatible_class_cast_exception", dont_gc_arguments);
925 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false);
926 }
927 break;
928
929 case slow_subtype_check_id:
930 {
931 // Typical calling sequence:
932 // __ push(klass_RInfo); // object klass or other subclass
933 // __ push(sup_k_RInfo); // array element klass or other superclass
934 // __ bl(slow_subtype_check);
935 // Note that the subclass is pushed first, and is therefore deepest.
936 enum layout {
937 r0_off, r0_off_hi,
938 r2_off, r2_off_hi,
939 r4_off, r4_off_hi,
940 r5_off, r5_off_hi,
941 sup_k_off, sup_k_off_hi,
942 klass_off, klass_off_hi,
943 framesize,
944 result_off = sup_k_off
945 };
946
947 __ set_info("slow_subtype_check", dont_gc_arguments);
948 __ push(RegSet::of(r0, r2, r4, r5), sp);
949
950 // This is called by pushing args and not with C abi
951 // __ ldr(r4, Address(sp, (klass_off) * VMRegImpl::stack_slot_size)); // subclass
952 // __ ldr(r0, Address(sp, (sup_k_off) * VMRegImpl::stack_slot_size)); // superclass
953
954 __ ldp(r4, r0, Address(sp, (sup_k_off) * VMRegImpl::stack_slot_size));
955
956 Label miss;
957 __ check_klass_subtype_slow_path(r4, r0, r2, r5, NULL, &miss);
958
959 // fallthrough on success:
960 __ mov(rscratch1, 1);
961 __ str(rscratch1, Address(sp, (result_off) * VMRegImpl::stack_slot_size)); // result
962 __ pop(RegSet::of(r0, r2, r4, r5), sp);
963 __ ret(lr);
964
965 __ bind(miss);
966 __ str(zr, Address(sp, (result_off) * VMRegImpl::stack_slot_size)); // result
967 __ pop(RegSet::of(r0, r2, r4, r5), sp);
968 __ ret(lr);
969 }
970 break;
971
972 case monitorenter_nofpu_id:
973 save_fpu_registers = false;
974 // fall through
975 case monitorenter_id:
976 {
977 StubFrame f(sasm, "monitorenter", dont_gc_arguments);
978 OopMap* map = save_live_registers(sasm, save_fpu_registers);
979
980 // Called with store_parameter and not C abi
981
982 f.load_argument(1, r0); // r0,: object
983 f.load_argument(0, r1); // r1,: lock address
984
985 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), r0, r1);
986
987 oop_maps = new OopMapSet();
988 oop_maps->add_gc_map(call_offset, map);
989 restore_live_registers(sasm, save_fpu_registers);
990 }
991 break;
992
993 case monitorexit_nofpu_id:
994 save_fpu_registers = false;
995 // fall through
996 case monitorexit_id:
997 {
998 StubFrame f(sasm, "monitorexit", dont_gc_arguments);
999 OopMap* map = save_live_registers(sasm, save_fpu_registers);
1000
1001 // Called with store_parameter and not C abi
1002
1003 f.load_argument(0, r0); // r0,: lock address
1004
1005 // note: really a leaf routine but must setup last java sp
1006 // => use call_RT for now (speed can be improved by
1007 // doing last java sp setup manually)
1008 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), r0);
1009
1010 oop_maps = new OopMapSet();
1011 oop_maps->add_gc_map(call_offset, map);
1012 restore_live_registers(sasm, save_fpu_registers);
1013 }
1014 break;
1015
1016 case deoptimize_id:
1017 {
1018 StubFrame f(sasm, "deoptimize", dont_gc_arguments);
1019 OopMap* oop_map = save_live_registers(sasm);
1020 f.load_argument(0, c_rarg1);
1021 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize), c_rarg1);
1022
1023 oop_maps = new OopMapSet();
1024 oop_maps->add_gc_map(call_offset, oop_map);
1025 restore_live_registers(sasm);
1026 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
1027 assert(deopt_blob != NULL, "deoptimization blob must have been created");
1028 __ leave();
1029 __ far_jump(RuntimeAddress(deopt_blob->unpack_with_reexecution()));
1030 }
1031 break;
1032
1033 case throw_range_check_failed_id:
1034 { StubFrame f(sasm, "range_check_failed", dont_gc_arguments);
1035 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true);
1036 }
1037 break;
1038
1039 case unwind_exception_id:
1040 { __ set_info("unwind_exception", dont_gc_arguments);
1041 // note: no stubframe since we are about to leave the current
1042 // activation and we are calling a leaf VM function only.
1043 generate_unwind_exception(sasm);
1044 }
1045 break;
1046
1047 case access_field_patching_id:
1048 { StubFrame f(sasm, "access_field_patching", dont_gc_arguments);
1049 // we should set up register map
1050 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching));
1051 }
1052 break;
1053
1054 case load_klass_patching_id:
1055 { StubFrame f(sasm, "load_klass_patching", dont_gc_arguments);
1056 // we should set up register map
1057 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching));
1058 }
1059 break;
1060
1061 case load_mirror_patching_id:
1062 { StubFrame f(sasm, "load_mirror_patching", dont_gc_arguments);
1063 // we should set up register map
1064 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching));
1065 }
1066 break;
1067
1068 case load_appendix_patching_id:
1069 { StubFrame f(sasm, "load_appendix_patching", dont_gc_arguments);
1070 // we should set up register map
1071 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching));
1072 }
1073 break;
1074
1075 case handle_exception_nofpu_id:
1076 case handle_exception_id:
1077 { StubFrame f(sasm, "handle_exception", dont_gc_arguments);
1078 oop_maps = generate_handle_exception(id, sasm);
1079 }
1080 break;
1081
1082 case handle_exception_from_callee_id:
1083 { StubFrame f(sasm, "handle_exception_from_callee", dont_gc_arguments);
1084 oop_maps = generate_handle_exception(id, sasm);
1085 }
1086 break;
1087
1088 case throw_index_exception_id:
1089 { StubFrame f(sasm, "index_range_check_failed", dont_gc_arguments);
1090 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true);
1091 }
1092 break;
1093
1094 case throw_array_store_exception_id:
1095 { StubFrame f(sasm, "throw_array_store_exception", dont_gc_arguments);
1096 // tos + 0: link
1097 // + 1: return address
1098 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true);
1099 }
1100 break;
1101
1102 #if INCLUDE_ALL_GCS
1103
1104 case g1_pre_barrier_slow_id:
1105 {
1106 StubFrame f(sasm, "g1_pre_barrier", dont_gc_arguments);
1107 // arg0 : previous value of memory
1108
1109 BarrierSet* bs = Universe::heap()->barrier_set();
1110 if (bs->kind() != BarrierSet::G1SATBCTLogging) {
1111 __ mov(r0, (int)id);
1112 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), r0);
1113 __ should_not_reach_here();
1114 break;
1115 }
1116
1117 const Register pre_val = r0;
1118 const Register thread = rthread;
1119 const Register tmp = rscratch1;
1120
1121 Address in_progress(thread, in_bytes(JavaThread::satb_mark_queue_offset() +
1122 SATBMarkQueue::byte_offset_of_active()));
1123
1124 Address queue_index(thread, in_bytes(JavaThread::satb_mark_queue_offset() +
1125 SATBMarkQueue::byte_offset_of_index()));
1126 Address buffer(thread, in_bytes(JavaThread::satb_mark_queue_offset() +
1127 SATBMarkQueue::byte_offset_of_buf()));
1128
1129 Label done;
1130 Label runtime;
1131
1132 // Is marking still active?
1133 if (in_bytes(SATBMarkQueue::byte_width_of_active()) == 4) {
1134 __ ldrw(tmp, in_progress);
1135 } else {
1136 assert(in_bytes(SATBMarkQueue::byte_width_of_active()) == 1, "Assumption");
1137 __ ldrb(tmp, in_progress);
1138 }
1139 __ cbzw(tmp, done);
1140
1141 // Can we store original value in the thread's buffer?
1142 __ ldr(tmp, queue_index);
1143 __ cbz(tmp, runtime);
1144
1145 __ sub(tmp, tmp, wordSize);
1146 __ str(tmp, queue_index);
1147 __ ldr(rscratch2, buffer);
1148 __ add(tmp, tmp, rscratch2);
1149 f.load_argument(0, rscratch2);
1150 __ str(rscratch2, Address(tmp, 0));
1151 __ b(done);
1152
1153 __ bind(runtime);
1154 __ push_call_clobbered_registers();
1155 f.load_argument(0, pre_val);
1156 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), pre_val, thread);
1157 __ pop_call_clobbered_registers();
1158 __ bind(done);
1159 }
1160 break;
1161 case g1_post_barrier_slow_id:
1162 {
1163 StubFrame f(sasm, "g1_post_barrier", dont_gc_arguments);
1164
1165 // arg0: store_address
1166 Address store_addr(rfp, 2*BytesPerWord);
1167
1168 Label done;
1169 Label runtime;
1170
1171 // At this point we know new_value is non-NULL and the new_value crosses regions.
1172 // Must check to see if card is already dirty
1173
1174 const Register thread = rthread;
1175
1176 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() +
1177 DirtyCardQueue::byte_offset_of_index()));
1178 Address buffer(thread, in_bytes(JavaThread::dirty_card_queue_offset() +
1179 DirtyCardQueue::byte_offset_of_buf()));
1180
1181 const Register card_offset = rscratch2;
1182 // LR is free here, so we can use it to hold the byte_map_base.
1183 const Register byte_map_base = lr;
1184
1185 assert_different_registers(card_offset, byte_map_base, rscratch1);
1186
1187 f.load_argument(0, card_offset);
1188 __ lsr(card_offset, card_offset, CardTable::card_shift);
1189 __ load_byte_map_base(byte_map_base);
1190 __ ldrb(rscratch1, Address(byte_map_base, card_offset));
1191 __ cmpw(rscratch1, (int)G1CardTable::g1_young_card_val());
1192 __ br(Assembler::EQ, done);
1193
1194 assert((int)CardTable::dirty_card_val() == 0, "must be 0");
1195
1196 __ membar(Assembler::StoreLoad);
1197 __ ldrb(rscratch1, Address(byte_map_base, card_offset));
1198 __ cbzw(rscratch1, done);
1199
1200 // storing region crossing non-NULL, card is clean.
1201 // dirty card and log.
1202 __ strb(zr, Address(byte_map_base, card_offset));
1203
1204 // Convert card offset into an address in card_addr
1205 Register card_addr = card_offset;
1206 __ add(card_addr, byte_map_base, card_addr);
1207
1208 __ ldr(rscratch1, queue_index);
1209 __ cbz(rscratch1, runtime);
1210 __ sub(rscratch1, rscratch1, wordSize);
1211 __ str(rscratch1, queue_index);
1212
1213 // Reuse LR to hold buffer_addr
1214 const Register buffer_addr = lr;
1215
1216 __ ldr(buffer_addr, buffer);
1217 __ str(card_addr, Address(buffer_addr, rscratch1));
1218 __ b(done);
1219
1220 __ bind(runtime);
1221 __ push_call_clobbered_registers();
1222 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_post), card_addr, thread);
1223 __ pop_call_clobbered_registers();
1224 __ bind(done);
1225
1226 }
1227 break;
1228 #endif
1229
1230 case predicate_failed_trap_id:
1231 {
1232 StubFrame f(sasm, "predicate_failed_trap", dont_gc_arguments);
1233
1234 OopMap* map = save_live_registers(sasm);
1235
1236 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap));
1237 oop_maps = new OopMapSet();
1238 oop_maps->add_gc_map(call_offset, map);
1239 restore_live_registers(sasm);
1240 __ leave();
1241 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
1242 assert(deopt_blob != NULL, "deoptimization blob must have been created");
1243
1244 __ far_jump(RuntimeAddress(deopt_blob->unpack_with_reexecution()));
1245 }
1246 break;
1247
1248
1249 default:
1250 { StubFrame f(sasm, "unimplemented entry", dont_gc_arguments);
1251 __ mov(r0, (int)id);
1252 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), r0);
1253 __ should_not_reach_here();
1254 }
1255 break;
1256 }
1257 }
1258 return oop_maps;
1259 }
1260
1261 #undef __
1262
1263 const char *Runtime1::pd_name_for_address(address entry) { Unimplemented(); return 0; }