Thu, 27 May 2010 19:08:38 -0700
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
1 /*
2 * Copyright (c) 1997, 2010, 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 */
25 #include "incls/_precompiled.incl"
26 #include "incls/_methodHandles_x86.cpp.incl"
28 #define __ _masm->
30 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm,
31 address interpreted_entry) {
32 // Just before the actual machine code entry point, allocate space
33 // for a MethodHandleEntry::Data record, so that we can manage everything
34 // from one base pointer.
35 __ align(wordSize);
36 address target = __ pc() + sizeof(Data);
37 while (__ pc() < target) {
38 __ nop();
39 __ align(wordSize);
40 }
42 MethodHandleEntry* me = (MethodHandleEntry*) __ pc();
43 me->set_end_address(__ pc()); // set a temporary end_address
44 me->set_from_interpreted_entry(interpreted_entry);
45 me->set_type_checking_entry(NULL);
47 return (address) me;
48 }
50 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm,
51 address start_addr) {
52 MethodHandleEntry* me = (MethodHandleEntry*) start_addr;
53 assert(me->end_address() == start_addr, "valid ME");
55 // Fill in the real end_address:
56 __ align(wordSize);
57 me->set_end_address(__ pc());
59 return me;
60 }
62 #ifdef ASSERT
63 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg,
64 const char* error_message) {
65 // Verify that argslot lies within (rsp, rbp].
66 Label L_ok, L_bad;
67 __ cmpptr(argslot_reg, rbp);
68 __ jccb(Assembler::above, L_bad);
69 __ cmpptr(rsp, argslot_reg);
70 __ jccb(Assembler::below, L_ok);
71 __ bind(L_bad);
72 __ stop(error_message);
73 __ bind(L_ok);
74 }
75 #endif
78 // Code generation
79 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
80 // rbx: methodOop
81 // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots])
82 // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
83 // rdx: garbage temp, blown away
85 Register rbx_method = rbx;
86 Register rcx_recv = rcx;
87 Register rax_mtype = rax;
88 Register rdx_temp = rdx;
90 // emit WrongMethodType path first, to enable jccb back-branch from main path
91 Label wrong_method_type;
92 __ bind(wrong_method_type);
93 __ push(rax_mtype); // required mtype
94 __ push(rcx_recv); // bad mh (1st stacked argument)
95 __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry()));
97 // here's where control starts out:
98 __ align(CodeEntryAlignment);
99 address entry_point = __ pc();
101 // fetch the MethodType from the method handle into rax (the 'check' register)
102 {
103 Register tem = rbx_method;
104 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) {
105 __ movptr(rax_mtype, Address(tem, *pchase));
106 tem = rax_mtype; // in case there is another indirection
107 }
108 }
109 Register rbx_temp = rbx_method; // done with incoming methodOop
111 // given the MethodType, find out where the MH argument is buried
112 __ movptr(rdx_temp, Address(rax_mtype,
113 __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rbx_temp)));
114 __ movl(rdx_temp, Address(rdx_temp,
115 __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, rbx_temp)));
116 __ movptr(rcx_recv, __ argument_address(rdx_temp));
118 __ check_method_handle_type(rax_mtype, rcx_recv, rdx_temp, wrong_method_type);
119 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
121 return entry_point;
122 }
124 // Helper to insert argument slots into the stack.
125 // arg_slots must be a multiple of stack_move_unit() and <= 0
126 void MethodHandles::insert_arg_slots(MacroAssembler* _masm,
127 RegisterOrConstant arg_slots,
128 int arg_mask,
129 Register rax_argslot,
130 Register rbx_temp, Register rdx_temp, Register temp3_reg) {
131 assert(temp3_reg == noreg, "temp3 not required");
132 assert_different_registers(rax_argslot, rbx_temp, rdx_temp,
133 (!arg_slots.is_register() ? rsp : arg_slots.as_register()));
135 #ifdef ASSERT
136 verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame");
137 if (arg_slots.is_register()) {
138 Label L_ok, L_bad;
139 __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD);
140 __ jccb(Assembler::greater, L_bad);
141 __ testl(arg_slots.as_register(), -stack_move_unit() - 1);
142 __ jccb(Assembler::zero, L_ok);
143 __ bind(L_bad);
144 __ stop("assert arg_slots <= 0 and clear low bits");
145 __ bind(L_ok);
146 } else {
147 assert(arg_slots.as_constant() <= 0, "");
148 assert(arg_slots.as_constant() % -stack_move_unit() == 0, "");
149 }
150 #endif //ASSERT
152 #ifdef _LP64
153 if (arg_slots.is_register()) {
154 // clean high bits of stack motion register (was loaded as an int)
155 __ movslq(arg_slots.as_register(), arg_slots.as_register());
156 }
157 #endif
159 // Make space on the stack for the inserted argument(s).
160 // Then pull down everything shallower than rax_argslot.
161 // The stacked return address gets pulled down with everything else.
162 // That is, copy [rsp, argslot) downward by -size words. In pseudo-code:
163 // rsp -= size;
164 // for (rdx = rsp + size; rdx < argslot; rdx++)
165 // rdx[-size] = rdx[0]
166 // argslot -= size;
167 __ mov(rdx_temp, rsp); // source pointer for copy
168 __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr));
169 {
170 Label loop;
171 __ bind(loop);
172 // pull one word down each time through the loop
173 __ movptr(rbx_temp, Address(rdx_temp, 0));
174 __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp);
175 __ addptr(rdx_temp, wordSize);
176 __ cmpptr(rdx_temp, rax_argslot);
177 __ jccb(Assembler::less, loop);
178 }
180 // Now move the argslot down, to point to the opened-up space.
181 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr));
182 }
184 // Helper to remove argument slots from the stack.
185 // arg_slots must be a multiple of stack_move_unit() and >= 0
186 void MethodHandles::remove_arg_slots(MacroAssembler* _masm,
187 RegisterOrConstant arg_slots,
188 Register rax_argslot,
189 Register rbx_temp, Register rdx_temp, Register temp3_reg) {
190 assert(temp3_reg == noreg, "temp3 not required");
191 assert_different_registers(rax_argslot, rbx_temp, rdx_temp,
192 (!arg_slots.is_register() ? rsp : arg_slots.as_register()));
194 #ifdef ASSERT
195 // Verify that [argslot..argslot+size) lies within (rsp, rbp).
196 __ lea(rbx_temp, Address(rax_argslot, arg_slots, Address::times_ptr));
197 verify_argslot(_masm, rbx_temp, "deleted argument(s) must fall within current frame");
198 if (arg_slots.is_register()) {
199 Label L_ok, L_bad;
200 __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD);
201 __ jccb(Assembler::less, L_bad);
202 __ testl(arg_slots.as_register(), -stack_move_unit() - 1);
203 __ jccb(Assembler::zero, L_ok);
204 __ bind(L_bad);
205 __ stop("assert arg_slots >= 0 and clear low bits");
206 __ bind(L_ok);
207 } else {
208 assert(arg_slots.as_constant() >= 0, "");
209 assert(arg_slots.as_constant() % -stack_move_unit() == 0, "");
210 }
211 #endif //ASSERT
213 #ifdef _LP64
214 if (false) { // not needed, since register is positive
215 // clean high bits of stack motion register (was loaded as an int)
216 if (arg_slots.is_register())
217 __ movslq(arg_slots.as_register(), arg_slots.as_register());
218 }
219 #endif
221 // Pull up everything shallower than rax_argslot.
222 // Then remove the excess space on the stack.
223 // The stacked return address gets pulled up with everything else.
224 // That is, copy [rsp, argslot) upward by size words. In pseudo-code:
225 // for (rdx = argslot-1; rdx >= rsp; --rdx)
226 // rdx[size] = rdx[0]
227 // argslot += size;
228 // rsp += size;
229 __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy
230 {
231 Label loop;
232 __ bind(loop);
233 // pull one word up each time through the loop
234 __ movptr(rbx_temp, Address(rdx_temp, 0));
235 __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp);
236 __ addptr(rdx_temp, -wordSize);
237 __ cmpptr(rdx_temp, rsp);
238 __ jccb(Assembler::greaterEqual, loop);
239 }
241 // Now move the argslot up, to point to the just-copied block.
242 __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr));
243 // And adjust the argslot address to point at the deletion point.
244 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr));
245 }
247 #ifndef PRODUCT
248 extern "C" void print_method_handle(oop mh);
249 void trace_method_handle_stub(const char* adaptername,
250 oop mh,
251 intptr_t* entry_sp,
252 intptr_t* saved_sp,
253 intptr_t* saved_bp) {
254 // called as a leaf from native code: do not block the JVM!
255 intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset];
256 intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset];
257 printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n",
258 adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp);
259 if (last_sp != saved_sp)
260 printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp);
261 if (Verbose) print_method_handle(mh);
262 }
263 #endif //PRODUCT
265 // which conversion op types are implemented here?
266 int MethodHandles::adapter_conversion_ops_supported_mask() {
267 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY)
268 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW)
269 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST)
270 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM)
271 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM)
272 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS)
273 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS)
274 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS)
275 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS)
276 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG!
277 );
278 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS.
279 }
281 // Generate an "entry" field for a method handle.
282 // This determines how the method handle will respond to calls.
283 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) {
284 // Here is the register state during an interpreted call,
285 // as set up by generate_method_handle_interpreter_entry():
286 // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused)
287 // - rcx: receiver method handle
288 // - rax: method handle type (only used by the check_mtype entry point)
289 // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
290 // - rdx: garbage temp, can blow away
292 Register rcx_recv = rcx;
293 Register rax_argslot = rax;
294 Register rbx_temp = rbx;
295 Register rdx_temp = rdx;
297 // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls)
298 // and gen_c2i_adapter (from compiled calls):
299 Register saved_last_sp = LP64_ONLY(r13) NOT_LP64(rsi);
301 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets");
303 // some handy addresses
304 Address rbx_method_fie( rbx, methodOopDesc::from_interpreted_offset() );
306 Address rcx_mh_vmtarget( rcx_recv, java_dyn_MethodHandle::vmtarget_offset_in_bytes() );
307 Address rcx_dmh_vmindex( rcx_recv, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes() );
309 Address rcx_bmh_vmargslot( rcx_recv, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes() );
310 Address rcx_bmh_argument( rcx_recv, sun_dyn_BoundMethodHandle::argument_offset_in_bytes() );
312 Address rcx_amh_vmargslot( rcx_recv, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes() );
313 Address rcx_amh_argument( rcx_recv, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes() );
314 Address rcx_amh_conversion( rcx_recv, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes() );
315 Address vmarg; // __ argument_address(vmargslot)
317 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
319 if (have_entry(ek)) {
320 __ nop(); // empty stubs make SG sick
321 return;
322 }
324 address interp_entry = __ pc();
325 if (UseCompressedOops) __ unimplemented("UseCompressedOops");
327 #ifndef PRODUCT
328 if (TraceMethodHandles) {
329 __ push(rax); __ push(rbx); __ push(rcx); __ push(rdx); __ push(rsi); __ push(rdi);
330 __ lea(rax, Address(rsp, wordSize*6)); // entry_sp
331 // arguments:
332 __ push(rbp); // interpreter frame pointer
333 __ push(rsi); // saved_sp
334 __ push(rax); // entry_sp
335 __ push(rcx); // mh
336 __ push(rcx);
337 __ movptr(Address(rsp, 0), (intptr_t)entry_name(ek));
338 __ call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub), 5);
339 __ pop(rdi); __ pop(rsi); __ pop(rdx); __ pop(rcx); __ pop(rbx); __ pop(rax);
340 }
341 #endif //PRODUCT
343 switch ((int) ek) {
344 case _raise_exception:
345 {
346 // Not a real MH entry, but rather shared code for raising an exception.
347 // Extra local arguments are pushed on stack, as required type at TOS+8,
348 // failing object (or NULL) at TOS+4, failing bytecode type at TOS.
349 // Beyond those local arguments are the PC, of course.
350 Register rdx_code = rdx_temp;
351 Register rcx_fail = rcx_recv;
352 Register rax_want = rax_argslot;
353 Register rdi_pc = rdi;
354 __ pop(rdx_code); // TOS+0
355 __ pop(rcx_fail); // TOS+4
356 __ pop(rax_want); // TOS+8
357 __ pop(rdi_pc); // caller PC
359 __ mov(rsp, rsi); // cut the stack back to where the caller started
361 // Repush the arguments as if coming from the interpreter.
362 __ push(rdx_code);
363 __ push(rcx_fail);
364 __ push(rax_want);
366 Register rbx_method = rbx_temp;
367 Label no_method;
368 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method
369 __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method));
370 __ testptr(rbx_method, rbx_method);
371 __ jccb(Assembler::zero, no_method);
372 int jobject_oop_offset = 0;
373 __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject
374 __ testptr(rbx_method, rbx_method);
375 __ jccb(Assembler::zero, no_method);
376 __ verify_oop(rbx_method);
377 __ push(rdi_pc); // and restore caller PC
378 __ jmp(rbx_method_fie);
380 // If we get here, the Java runtime did not do its job of creating the exception.
381 // Do something that is at least causes a valid throw from the interpreter.
382 __ bind(no_method);
383 __ pop(rax_want);
384 __ pop(rcx_fail);
385 __ push(rax_want);
386 __ push(rcx_fail);
387 __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry()));
388 }
389 break;
391 case _invokestatic_mh:
392 case _invokespecial_mh:
393 {
394 Register rbx_method = rbx_temp;
395 __ movptr(rbx_method, rcx_mh_vmtarget); // target is a methodOop
396 __ verify_oop(rbx_method);
397 // same as TemplateTable::invokestatic or invokespecial,
398 // minus the CP setup and profiling:
399 if (ek == _invokespecial_mh) {
400 // Must load & check the first argument before entering the target method.
401 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
402 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
403 __ null_check(rcx_recv);
404 __ verify_oop(rcx_recv);
405 }
406 __ jmp(rbx_method_fie);
407 }
408 break;
410 case _invokevirtual_mh:
411 {
412 // same as TemplateTable::invokevirtual,
413 // minus the CP setup and profiling:
415 // pick out the vtable index and receiver offset from the MH,
416 // and then we can discard it:
417 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
418 Register rbx_index = rbx_temp;
419 __ movl(rbx_index, rcx_dmh_vmindex);
420 // Note: The verifier allows us to ignore rcx_mh_vmtarget.
421 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
422 __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes());
424 // get receiver klass
425 Register rax_klass = rax_argslot;
426 __ load_klass(rax_klass, rcx_recv);
427 __ verify_oop(rax_klass);
429 // get target methodOop & entry point
430 const int base = instanceKlass::vtable_start_offset() * wordSize;
431 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below");
432 Address vtable_entry_addr(rax_klass,
433 rbx_index, Address::times_ptr,
434 base + vtableEntry::method_offset_in_bytes());
435 Register rbx_method = rbx_temp;
436 __ movptr(rbx_method, vtable_entry_addr);
438 __ verify_oop(rbx_method);
439 __ jmp(rbx_method_fie);
440 }
441 break;
443 case _invokeinterface_mh:
444 {
445 // same as TemplateTable::invokeinterface,
446 // minus the CP setup and profiling:
448 // pick out the interface and itable index from the MH.
449 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
450 Register rdx_intf = rdx_temp;
451 Register rbx_index = rbx_temp;
452 __ movptr(rdx_intf, rcx_mh_vmtarget);
453 __ movl(rbx_index, rcx_dmh_vmindex);
454 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
455 __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes());
457 // get receiver klass
458 Register rax_klass = rax_argslot;
459 __ load_klass(rax_klass, rcx_recv);
460 __ verify_oop(rax_klass);
462 Register rdi_temp = rdi;
463 Register rbx_method = rbx_index;
465 // get interface klass
466 Label no_such_interface;
467 __ verify_oop(rdx_intf);
468 __ lookup_interface_method(rax_klass, rdx_intf,
469 // note: next two args must be the same:
470 rbx_index, rbx_method,
471 rdi_temp,
472 no_such_interface);
474 __ verify_oop(rbx_method);
475 __ jmp(rbx_method_fie);
476 __ hlt();
478 __ bind(no_such_interface);
479 // Throw an exception.
480 // For historical reasons, it will be IncompatibleClassChangeError.
481 __ pushptr(Address(rdx_intf, java_mirror_offset)); // required interface
482 __ push(rcx_recv); // bad receiver
483 __ push((int)Bytecodes::_invokeinterface); // who is complaining?
484 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
485 }
486 break;
488 case _bound_ref_mh:
489 case _bound_int_mh:
490 case _bound_long_mh:
491 case _bound_ref_direct_mh:
492 case _bound_int_direct_mh:
493 case _bound_long_direct_mh:
494 {
495 bool direct_to_method = (ek >= _bound_ref_direct_mh);
496 BasicType arg_type = T_ILLEGAL;
497 int arg_mask = _INSERT_NO_MASK;
498 int arg_slots = -1;
499 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots);
501 // make room for the new argument:
502 __ movl(rax_argslot, rcx_bmh_vmargslot);
503 __ lea(rax_argslot, __ argument_address(rax_argslot));
504 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask,
505 rax_argslot, rbx_temp, rdx_temp);
507 // store bound argument into the new stack slot:
508 __ movptr(rbx_temp, rcx_bmh_argument);
509 Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type));
510 if (arg_type == T_OBJECT) {
511 __ movptr(Address(rax_argslot, 0), rbx_temp);
512 } else {
513 __ load_sized_value(rdx_temp, prim_value_addr,
514 type2aelembytes(arg_type), is_signed_subword_type(arg_type));
515 __ movptr(Address(rax_argslot, 0), rdx_temp);
516 #ifndef _LP64
517 if (arg_slots == 2) {
518 __ movl(rdx_temp, prim_value_addr.plus_disp(wordSize));
519 __ movl(Address(rax_argslot, Interpreter::stackElementSize), rdx_temp);
520 }
521 #endif //_LP64
522 }
524 if (direct_to_method) {
525 Register rbx_method = rbx_temp;
526 __ movptr(rbx_method, rcx_mh_vmtarget);
527 __ verify_oop(rbx_method);
528 __ jmp(rbx_method_fie);
529 } else {
530 __ movptr(rcx_recv, rcx_mh_vmtarget);
531 __ verify_oop(rcx_recv);
532 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
533 }
534 }
535 break;
537 case _adapter_retype_only:
538 case _adapter_retype_raw:
539 // immediately jump to the next MH layer:
540 __ movptr(rcx_recv, rcx_mh_vmtarget);
541 __ verify_oop(rcx_recv);
542 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
543 // This is OK when all parameter types widen.
544 // It is also OK when a return type narrows.
545 break;
547 case _adapter_check_cast:
548 {
549 // temps:
550 Register rbx_klass = rbx_temp; // interesting AMH data
552 // check a reference argument before jumping to the next layer of MH:
553 __ movl(rax_argslot, rcx_amh_vmargslot);
554 vmarg = __ argument_address(rax_argslot);
556 // What class are we casting to?
557 __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object!
558 __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes()));
560 Label done;
561 __ movptr(rdx_temp, vmarg);
562 __ testptr(rdx_temp, rdx_temp);
563 __ jccb(Assembler::zero, done); // no cast if null
564 __ load_klass(rdx_temp, rdx_temp);
566 // live at this point:
567 // - rbx_klass: klass required by the target method
568 // - rdx_temp: argument klass to test
569 // - rcx_recv: adapter method handle
570 __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done);
572 // If we get here, the type check failed!
573 // Call the wrong_method_type stub, passing the failing argument type in rax.
574 Register rax_mtype = rax_argslot;
575 __ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field
576 __ movptr(rdx_temp, vmarg);
578 __ pushptr(rcx_amh_argument); // required class
579 __ push(rdx_temp); // bad object
580 __ push((int)Bytecodes::_checkcast); // who is complaining?
581 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
583 __ bind(done);
584 // get the new MH:
585 __ movptr(rcx_recv, rcx_mh_vmtarget);
586 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
587 }
588 break;
590 case _adapter_prim_to_prim:
591 case _adapter_ref_to_prim:
592 // handled completely by optimized cases
593 __ stop("init_AdapterMethodHandle should not issue this");
594 break;
596 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim
597 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim
598 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim
599 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim
600 {
601 // perform an in-place conversion to int or an int subword
602 __ movl(rax_argslot, rcx_amh_vmargslot);
603 vmarg = __ argument_address(rax_argslot);
605 switch (ek) {
606 case _adapter_opt_i2i:
607 __ movl(rdx_temp, vmarg);
608 break;
609 case _adapter_opt_l2i:
610 {
611 // just delete the extra slot; on a little-endian machine we keep the first
612 __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
613 remove_arg_slots(_masm, -stack_move_unit(),
614 rax_argslot, rbx_temp, rdx_temp);
615 vmarg = Address(rax_argslot, -Interpreter::stackElementSize);
616 __ movl(rdx_temp, vmarg);
617 }
618 break;
619 case _adapter_opt_unboxi:
620 {
621 // Load the value up from the heap.
622 __ movptr(rdx_temp, vmarg);
623 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT);
624 #ifdef ASSERT
625 for (int bt = T_BOOLEAN; bt < T_INT; bt++) {
626 if (is_subword_type(BasicType(bt)))
627 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), "");
628 }
629 #endif
630 __ null_check(rdx_temp, value_offset);
631 __ movl(rdx_temp, Address(rdx_temp, value_offset));
632 // We load this as a word. Because we are little-endian,
633 // the low bits will be correct, but the high bits may need cleaning.
634 // The vminfo will guide us to clean those bits.
635 }
636 break;
637 default:
638 ShouldNotReachHere();
639 }
641 // Do the requested conversion and store the value.
642 Register rbx_vminfo = rbx_temp;
643 __ movl(rbx_vminfo, rcx_amh_conversion);
644 assert(CONV_VMINFO_SHIFT == 0, "preshifted");
646 // get the new MH:
647 __ movptr(rcx_recv, rcx_mh_vmtarget);
648 // (now we are done with the old MH)
650 // original 32-bit vmdata word must be of this form:
651 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 |
652 __ xchgptr(rcx, rbx_vminfo); // free rcx for shifts
653 __ shll(rdx_temp /*, rcx*/);
654 Label zero_extend, done;
655 __ testl(rcx, CONV_VMINFO_SIGN_FLAG);
656 __ jccb(Assembler::zero, zero_extend);
658 // this path is taken for int->byte, int->short
659 __ sarl(rdx_temp /*, rcx*/);
660 __ jmpb(done);
662 __ bind(zero_extend);
663 // this is taken for int->char
664 __ shrl(rdx_temp /*, rcx*/);
666 __ bind(done);
667 __ movl(vmarg, rdx_temp); // Store the value.
668 __ xchgptr(rcx, rbx_vminfo); // restore rcx_recv
670 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
671 }
672 break;
674 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim
675 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim
676 {
677 // perform an in-place int-to-long or ref-to-long conversion
678 __ movl(rax_argslot, rcx_amh_vmargslot);
680 // on a little-endian machine we keep the first slot and add another after
681 __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
682 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK,
683 rax_argslot, rbx_temp, rdx_temp);
684 Address vmarg1(rax_argslot, -Interpreter::stackElementSize);
685 Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize);
687 switch (ek) {
688 case _adapter_opt_i2l:
689 {
690 #ifdef _LP64
691 __ movslq(rdx_temp, vmarg1); // Load sign-extended
692 __ movq(vmarg1, rdx_temp); // Store into first slot
693 #else
694 __ movl(rdx_temp, vmarg1);
695 __ sarl(rdx_temp, BitsPerInt - 1); // __ extend_sign()
696 __ movl(vmarg2, rdx_temp); // store second word
697 #endif
698 }
699 break;
700 case _adapter_opt_unboxl:
701 {
702 // Load the value up from the heap.
703 __ movptr(rdx_temp, vmarg1);
704 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG);
705 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), "");
706 __ null_check(rdx_temp, value_offset);
707 #ifdef _LP64
708 __ movq(rbx_temp, Address(rdx_temp, value_offset));
709 __ movq(vmarg1, rbx_temp);
710 #else
711 __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt));
712 __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt));
713 __ movl(vmarg1, rbx_temp);
714 __ movl(vmarg2, rdx_temp);
715 #endif
716 }
717 break;
718 default:
719 ShouldNotReachHere();
720 }
722 __ movptr(rcx_recv, rcx_mh_vmtarget);
723 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
724 }
725 break;
727 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim
728 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim
729 {
730 // perform an in-place floating primitive conversion
731 __ movl(rax_argslot, rcx_amh_vmargslot);
732 __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
733 if (ek == _adapter_opt_f2d) {
734 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK,
735 rax_argslot, rbx_temp, rdx_temp);
736 }
737 Address vmarg(rax_argslot, -Interpreter::stackElementSize);
739 #ifdef _LP64
740 if (ek == _adapter_opt_f2d) {
741 __ movflt(xmm0, vmarg);
742 __ cvtss2sd(xmm0, xmm0);
743 __ movdbl(vmarg, xmm0);
744 } else {
745 __ movdbl(xmm0, vmarg);
746 __ cvtsd2ss(xmm0, xmm0);
747 __ movflt(vmarg, xmm0);
748 }
749 #else //_LP64
750 if (ek == _adapter_opt_f2d) {
751 __ fld_s(vmarg); // load float to ST0
752 __ fstp_s(vmarg); // store single
753 } else {
754 __ fld_d(vmarg); // load double to ST0
755 __ fstp_s(vmarg); // store single
756 }
757 #endif //_LP64
759 if (ek == _adapter_opt_d2f) {
760 remove_arg_slots(_masm, -stack_move_unit(),
761 rax_argslot, rbx_temp, rdx_temp);
762 }
764 __ movptr(rcx_recv, rcx_mh_vmtarget);
765 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
766 }
767 break;
769 case _adapter_prim_to_ref:
770 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI
771 break;
773 case _adapter_swap_args:
774 case _adapter_rot_args:
775 // handled completely by optimized cases
776 __ stop("init_AdapterMethodHandle should not issue this");
777 break;
779 case _adapter_opt_swap_1:
780 case _adapter_opt_swap_2:
781 case _adapter_opt_rot_1_up:
782 case _adapter_opt_rot_1_down:
783 case _adapter_opt_rot_2_up:
784 case _adapter_opt_rot_2_down:
785 {
786 int swap_bytes = 0, rotate = 0;
787 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate);
789 // 'argslot' is the position of the first argument to swap
790 __ movl(rax_argslot, rcx_amh_vmargslot);
791 __ lea(rax_argslot, __ argument_address(rax_argslot));
793 // 'vminfo' is the second
794 Register rbx_destslot = rbx_temp;
795 __ movl(rbx_destslot, rcx_amh_conversion);
796 assert(CONV_VMINFO_SHIFT == 0, "preshifted");
797 __ andl(rbx_destslot, CONV_VMINFO_MASK);
798 __ lea(rbx_destslot, __ argument_address(rbx_destslot));
799 DEBUG_ONLY(verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame"));
801 if (!rotate) {
802 for (int i = 0; i < swap_bytes; i += wordSize) {
803 __ movptr(rdx_temp, Address(rax_argslot , i));
804 __ push(rdx_temp);
805 __ movptr(rdx_temp, Address(rbx_destslot, i));
806 __ movptr(Address(rax_argslot, i), rdx_temp);
807 __ pop(rdx_temp);
808 __ movptr(Address(rbx_destslot, i), rdx_temp);
809 }
810 } else {
811 // push the first chunk, which is going to get overwritten
812 for (int i = swap_bytes; (i -= wordSize) >= 0; ) {
813 __ movptr(rdx_temp, Address(rax_argslot, i));
814 __ push(rdx_temp);
815 }
817 if (rotate > 0) {
818 // rotate upward
819 __ subptr(rax_argslot, swap_bytes);
820 #ifdef ASSERT
821 {
822 // Verify that argslot > destslot, by at least swap_bytes.
823 Label L_ok;
824 __ cmpptr(rax_argslot, rbx_destslot);
825 __ jccb(Assembler::aboveEqual, L_ok);
826 __ stop("source must be above destination (upward rotation)");
827 __ bind(L_ok);
828 }
829 #endif
830 // work argslot down to destslot, copying contiguous data upwards
831 // pseudo-code:
832 // rax = src_addr - swap_bytes
833 // rbx = dest_addr
834 // while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--;
835 Label loop;
836 __ bind(loop);
837 __ movptr(rdx_temp, Address(rax_argslot, 0));
838 __ movptr(Address(rax_argslot, swap_bytes), rdx_temp);
839 __ addptr(rax_argslot, -wordSize);
840 __ cmpptr(rax_argslot, rbx_destslot);
841 __ jccb(Assembler::aboveEqual, loop);
842 } else {
843 __ addptr(rax_argslot, swap_bytes);
844 #ifdef ASSERT
845 {
846 // Verify that argslot < destslot, by at least swap_bytes.
847 Label L_ok;
848 __ cmpptr(rax_argslot, rbx_destslot);
849 __ jccb(Assembler::belowEqual, L_ok);
850 __ stop("source must be below destination (downward rotation)");
851 __ bind(L_ok);
852 }
853 #endif
854 // work argslot up to destslot, copying contiguous data downwards
855 // pseudo-code:
856 // rax = src_addr + swap_bytes
857 // rbx = dest_addr
858 // while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++;
859 Label loop;
860 __ bind(loop);
861 __ movptr(rdx_temp, Address(rax_argslot, 0));
862 __ movptr(Address(rax_argslot, -swap_bytes), rdx_temp);
863 __ addptr(rax_argslot, wordSize);
864 __ cmpptr(rax_argslot, rbx_destslot);
865 __ jccb(Assembler::belowEqual, loop);
866 }
868 // pop the original first chunk into the destination slot, now free
869 for (int i = 0; i < swap_bytes; i += wordSize) {
870 __ pop(rdx_temp);
871 __ movptr(Address(rbx_destslot, i), rdx_temp);
872 }
873 }
875 __ movptr(rcx_recv, rcx_mh_vmtarget);
876 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
877 }
878 break;
880 case _adapter_dup_args:
881 {
882 // 'argslot' is the position of the first argument to duplicate
883 __ movl(rax_argslot, rcx_amh_vmargslot);
884 __ lea(rax_argslot, __ argument_address(rax_argslot));
886 // 'stack_move' is negative number of words to duplicate
887 Register rdx_stack_move = rdx_temp;
888 __ movl2ptr(rdx_stack_move, rcx_amh_conversion);
889 __ sarptr(rdx_stack_move, CONV_STACK_MOVE_SHIFT);
891 int argslot0_num = 0;
892 Address argslot0 = __ argument_address(RegisterOrConstant(argslot0_num));
893 assert(argslot0.base() == rsp, "");
894 int pre_arg_size = argslot0.disp();
895 assert(pre_arg_size % wordSize == 0, "");
896 assert(pre_arg_size > 0, "must include PC");
898 // remember the old rsp+1 (argslot[0])
899 Register rbx_oldarg = rbx_temp;
900 __ lea(rbx_oldarg, argslot0);
902 // move rsp down to make room for dups
903 __ lea(rsp, Address(rsp, rdx_stack_move, Address::times_ptr));
905 // compute the new rsp+1 (argslot[0])
906 Register rdx_newarg = rdx_temp;
907 __ lea(rdx_newarg, argslot0);
909 __ push(rdi); // need a temp
910 // (preceding push must be done after arg addresses are taken!)
912 // pull down the pre_arg_size data (PC)
913 for (int i = -pre_arg_size; i < 0; i += wordSize) {
914 __ movptr(rdi, Address(rbx_oldarg, i));
915 __ movptr(Address(rdx_newarg, i), rdi);
916 }
918 // copy from rax_argslot[0...] down to new_rsp[1...]
919 // pseudo-code:
920 // rbx = old_rsp+1
921 // rdx = new_rsp+1
922 // rax = argslot
923 // while (rdx < rbx) *rdx++ = *rax++
924 Label loop;
925 __ bind(loop);
926 __ movptr(rdi, Address(rax_argslot, 0));
927 __ movptr(Address(rdx_newarg, 0), rdi);
928 __ addptr(rax_argslot, wordSize);
929 __ addptr(rdx_newarg, wordSize);
930 __ cmpptr(rdx_newarg, rbx_oldarg);
931 __ jccb(Assembler::less, loop);
933 __ pop(rdi); // restore temp
935 __ movptr(rcx_recv, rcx_mh_vmtarget);
936 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
937 }
938 break;
940 case _adapter_drop_args:
941 {
942 // 'argslot' is the position of the first argument to nuke
943 __ movl(rax_argslot, rcx_amh_vmargslot);
944 __ lea(rax_argslot, __ argument_address(rax_argslot));
946 __ push(rdi); // need a temp
947 // (must do previous push after argslot address is taken)
949 // 'stack_move' is number of words to drop
950 Register rdi_stack_move = rdi;
951 __ movl2ptr(rdi_stack_move, rcx_amh_conversion);
952 __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT);
953 remove_arg_slots(_masm, rdi_stack_move,
954 rax_argslot, rbx_temp, rdx_temp);
956 __ pop(rdi); // restore temp
958 __ movptr(rcx_recv, rcx_mh_vmtarget);
959 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
960 }
961 break;
963 case _adapter_collect_args:
964 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI
965 break;
967 case _adapter_spread_args:
968 // handled completely by optimized cases
969 __ stop("init_AdapterMethodHandle should not issue this");
970 break;
972 case _adapter_opt_spread_0:
973 case _adapter_opt_spread_1:
974 case _adapter_opt_spread_more:
975 {
976 // spread an array out into a group of arguments
977 int length_constant = get_ek_adapter_opt_spread_info(ek);
979 // find the address of the array argument
980 __ movl(rax_argslot, rcx_amh_vmargslot);
981 __ lea(rax_argslot, __ argument_address(rax_argslot));
983 // grab some temps
984 { __ push(rsi); __ push(rdi); }
985 // (preceding pushes must be done after argslot address is taken!)
986 #define UNPUSH_RSI_RDI \
987 { __ pop(rdi); __ pop(rsi); }
989 // arx_argslot points both to the array and to the first output arg
990 vmarg = Address(rax_argslot, 0);
992 // Get the array value.
993 Register rsi_array = rsi;
994 Register rdx_array_klass = rdx_temp;
995 BasicType elem_type = T_OBJECT;
996 int length_offset = arrayOopDesc::length_offset_in_bytes();
997 int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type);
998 __ movptr(rsi_array, vmarg);
999 Label skip_array_check;
1000 if (length_constant == 0) {
1001 __ testptr(rsi_array, rsi_array);
1002 __ jcc(Assembler::zero, skip_array_check);
1003 }
1004 __ null_check(rsi_array, oopDesc::klass_offset_in_bytes());
1005 __ load_klass(rdx_array_klass, rsi_array);
1007 // Check the array type.
1008 Register rbx_klass = rbx_temp;
1009 __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object!
1010 __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes()));
1012 Label ok_array_klass, bad_array_klass, bad_array_length;
1013 __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi, ok_array_klass);
1014 // If we get here, the type check failed!
1015 __ jmp(bad_array_klass);
1016 __ bind(ok_array_klass);
1018 // Check length.
1019 if (length_constant >= 0) {
1020 __ cmpl(Address(rsi_array, length_offset), length_constant);
1021 } else {
1022 Register rbx_vminfo = rbx_temp;
1023 __ movl(rbx_vminfo, rcx_amh_conversion);
1024 assert(CONV_VMINFO_SHIFT == 0, "preshifted");
1025 __ andl(rbx_vminfo, CONV_VMINFO_MASK);
1026 __ cmpl(rbx_vminfo, Address(rsi_array, length_offset));
1027 }
1028 __ jcc(Assembler::notEqual, bad_array_length);
1030 Register rdx_argslot_limit = rdx_temp;
1032 // Array length checks out. Now insert any required stack slots.
1033 if (length_constant == -1) {
1034 // Form a pointer to the end of the affected region.
1035 __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize));
1036 // 'stack_move' is negative number of words to insert
1037 Register rdi_stack_move = rdi;
1038 __ movl2ptr(rdi_stack_move, rcx_amh_conversion);
1039 __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT);
1040 Register rsi_temp = rsi_array; // spill this
1041 insert_arg_slots(_masm, rdi_stack_move, -1,
1042 rax_argslot, rbx_temp, rsi_temp);
1043 // reload the array (since rsi was killed)
1044 __ movptr(rsi_array, vmarg);
1045 } else if (length_constant > 1) {
1046 int arg_mask = 0;
1047 int new_slots = (length_constant - 1);
1048 for (int i = 0; i < new_slots; i++) {
1049 arg_mask <<= 1;
1050 arg_mask |= _INSERT_REF_MASK;
1051 }
1052 insert_arg_slots(_masm, new_slots * stack_move_unit(), arg_mask,
1053 rax_argslot, rbx_temp, rdx_temp);
1054 } else if (length_constant == 1) {
1055 // no stack resizing required
1056 } else if (length_constant == 0) {
1057 remove_arg_slots(_masm, -stack_move_unit(),
1058 rax_argslot, rbx_temp, rdx_temp);
1059 }
1061 // Copy from the array to the new slots.
1062 // Note: Stack change code preserves integrity of rax_argslot pointer.
1063 // So even after slot insertions, rax_argslot still points to first argument.
1064 if (length_constant == -1) {
1065 // [rax_argslot, rdx_argslot_limit) is the area we are inserting into.
1066 Register rsi_source = rsi_array;
1067 __ lea(rsi_source, Address(rsi_array, elem0_offset));
1068 Label loop;
1069 __ bind(loop);
1070 __ movptr(rbx_temp, Address(rsi_source, 0));
1071 __ movptr(Address(rax_argslot, 0), rbx_temp);
1072 __ addptr(rsi_source, type2aelembytes(elem_type));
1073 __ addptr(rax_argslot, Interpreter::stackElementSize);
1074 __ cmpptr(rax_argslot, rdx_argslot_limit);
1075 __ jccb(Assembler::less, loop);
1076 } else if (length_constant == 0) {
1077 __ bind(skip_array_check);
1078 // nothing to copy
1079 } else {
1080 int elem_offset = elem0_offset;
1081 int slot_offset = 0;
1082 for (int index = 0; index < length_constant; index++) {
1083 __ movptr(rbx_temp, Address(rsi_array, elem_offset));
1084 __ movptr(Address(rax_argslot, slot_offset), rbx_temp);
1085 elem_offset += type2aelembytes(elem_type);
1086 slot_offset += Interpreter::stackElementSize;
1087 }
1088 }
1090 // Arguments are spread. Move to next method handle.
1091 UNPUSH_RSI_RDI;
1092 __ movptr(rcx_recv, rcx_mh_vmtarget);
1093 __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
1095 __ bind(bad_array_klass);
1096 UNPUSH_RSI_RDI;
1097 __ pushptr(Address(rdx_array_klass, java_mirror_offset)); // required type
1098 __ pushptr(vmarg); // bad array
1099 __ push((int)Bytecodes::_aaload); // who is complaining?
1100 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
1102 __ bind(bad_array_length);
1103 UNPUSH_RSI_RDI;
1104 __ push(rcx_recv); // AMH requiring a certain length
1105 __ pushptr(vmarg); // bad array
1106 __ push((int)Bytecodes::_arraylength); // who is complaining?
1107 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
1109 #undef UNPUSH_RSI_RDI
1110 }
1111 break;
1113 case _adapter_flyby:
1114 case _adapter_ricochet:
1115 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI
1116 break;
1118 default: ShouldNotReachHere();
1119 }
1120 __ hlt();
1122 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry);
1123 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI
1125 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie));
1126 }