Mon, 08 Aug 2011 13:19:46 -0700
7075623: 6990212 broke raiseException in 64 bit
Reviewed-by: kvn, twisti
jrose@1145 | 1 | /* |
twisti@2436 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
jrose@1145 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jrose@1145 | 4 | * |
jrose@1145 | 5 | * This code is free software; you can redistribute it and/or modify it |
jrose@1145 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jrose@1145 | 7 | * published by the Free Software Foundation. |
jrose@1145 | 8 | * |
jrose@1145 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jrose@1145 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jrose@1145 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jrose@1145 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
jrose@1145 | 13 | * accompanied this code). |
jrose@1145 | 14 | * |
jrose@1145 | 15 | * You should have received a copy of the GNU General Public License version |
jrose@1145 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
jrose@1145 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jrose@1145 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
jrose@1145 | 22 | * |
jrose@1145 | 23 | */ |
jrose@1145 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "interpreter/interpreter.hpp" |
jrose@2952 | 27 | #include "interpreter/interpreterRuntime.hpp" |
stefank@2314 | 28 | #include "memory/allocation.inline.hpp" |
stefank@2314 | 29 | #include "prims/methodHandles.hpp" |
jrose@1145 | 30 | |
jrose@1145 | 31 | #define __ _masm-> |
jrose@1145 | 32 | |
jrose@2148 | 33 | #ifdef PRODUCT |
jrose@2148 | 34 | #define BLOCK_COMMENT(str) /* nothing */ |
jrose@2148 | 35 | #else |
jrose@2148 | 36 | #define BLOCK_COMMENT(str) __ block_comment(str) |
jrose@2148 | 37 | #endif |
jrose@2148 | 38 | |
jrose@2148 | 39 | #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
jrose@2148 | 40 | |
jrose@2952 | 41 | // Workaround for C++ overloading nastiness on '0' for RegisterOrConstant. |
jrose@2952 | 42 | static RegisterOrConstant constant(int value) { |
jrose@2952 | 43 | return RegisterOrConstant(value); |
jrose@2952 | 44 | } |
jrose@2952 | 45 | |
jrose@1145 | 46 | address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 47 | address interpreted_entry) { |
jrose@1145 | 48 | // Just before the actual machine code entry point, allocate space |
jrose@1145 | 49 | // for a MethodHandleEntry::Data record, so that we can manage everything |
jrose@1145 | 50 | // from one base pointer. |
jrose@1145 | 51 | __ align(wordSize); |
jrose@1145 | 52 | address target = __ pc() + sizeof(Data); |
jrose@1145 | 53 | while (__ pc() < target) { |
jrose@1145 | 54 | __ nop(); |
jrose@1145 | 55 | __ align(wordSize); |
jrose@1145 | 56 | } |
jrose@1145 | 57 | |
jrose@1145 | 58 | MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); |
jrose@1145 | 59 | me->set_end_address(__ pc()); // set a temporary end_address |
jrose@1145 | 60 | me->set_from_interpreted_entry(interpreted_entry); |
jrose@1145 | 61 | me->set_type_checking_entry(NULL); |
jrose@1145 | 62 | |
jrose@1145 | 63 | return (address) me; |
jrose@1145 | 64 | } |
jrose@1145 | 65 | |
jrose@1145 | 66 | MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 67 | address start_addr) { |
jrose@1145 | 68 | MethodHandleEntry* me = (MethodHandleEntry*) start_addr; |
jrose@1145 | 69 | assert(me->end_address() == start_addr, "valid ME"); |
jrose@1145 | 70 | |
jrose@1145 | 71 | // Fill in the real end_address: |
jrose@1145 | 72 | __ align(wordSize); |
jrose@1145 | 73 | me->set_end_address(__ pc()); |
jrose@1145 | 74 | |
jrose@1145 | 75 | return me; |
jrose@1145 | 76 | } |
jrose@1145 | 77 | |
never@2895 | 78 | // stack walking support |
never@2895 | 79 | |
never@2895 | 80 | frame MethodHandles::ricochet_frame_sender(const frame& fr, RegisterMap *map) { |
never@2895 | 81 | RicochetFrame* f = RicochetFrame::from_frame(fr); |
never@2895 | 82 | if (map->update_map()) |
never@2895 | 83 | frame::update_map_with_saved_link(map, &f->_sender_link); |
never@2895 | 84 | return frame(f->extended_sender_sp(), f->exact_sender_sp(), f->sender_link(), f->sender_pc()); |
never@2895 | 85 | } |
never@2895 | 86 | |
never@2895 | 87 | void MethodHandles::ricochet_frame_oops_do(const frame& fr, OopClosure* blk, const RegisterMap* reg_map) { |
never@2895 | 88 | RicochetFrame* f = RicochetFrame::from_frame(fr); |
never@2895 | 89 | |
never@2895 | 90 | // pick up the argument type descriptor: |
never@2895 | 91 | Thread* thread = Thread::current(); |
never@2895 | 92 | Handle cookie(thread, f->compute_saved_args_layout(true, true)); |
never@2895 | 93 | |
never@2895 | 94 | // process fixed part |
never@2895 | 95 | blk->do_oop((oop*)f->saved_target_addr()); |
never@2895 | 96 | blk->do_oop((oop*)f->saved_args_layout_addr()); |
never@2895 | 97 | |
never@2895 | 98 | // process variable arguments: |
never@2895 | 99 | if (cookie.is_null()) return; // no arguments to describe |
never@2895 | 100 | |
never@2895 | 101 | // the cookie is actually the invokeExact method for my target |
never@2895 | 102 | // his argument signature is what I'm interested in |
never@2895 | 103 | assert(cookie->is_method(), ""); |
never@2895 | 104 | methodHandle invoker(thread, methodOop(cookie())); |
never@2895 | 105 | assert(invoker->name() == vmSymbols::invokeExact_name(), "must be this kind of method"); |
never@2895 | 106 | assert(!invoker->is_static(), "must have MH argument"); |
never@2895 | 107 | int slot_count = invoker->size_of_parameters(); |
never@2895 | 108 | assert(slot_count >= 1, "must include 'this'"); |
never@2895 | 109 | intptr_t* base = f->saved_args_base(); |
never@2895 | 110 | intptr_t* retval = NULL; |
never@2895 | 111 | if (f->has_return_value_slot()) |
never@2895 | 112 | retval = f->return_value_slot_addr(); |
never@2895 | 113 | int slot_num = slot_count; |
never@2895 | 114 | intptr_t* loc = &base[slot_num -= 1]; |
never@2895 | 115 | //blk->do_oop((oop*) loc); // original target, which is irrelevant |
never@2895 | 116 | int arg_num = 0; |
never@2895 | 117 | for (SignatureStream ss(invoker->signature()); !ss.is_done(); ss.next()) { |
never@2895 | 118 | if (ss.at_return_type()) continue; |
never@2895 | 119 | BasicType ptype = ss.type(); |
never@2895 | 120 | if (ptype == T_ARRAY) ptype = T_OBJECT; // fold all refs to T_OBJECT |
never@2895 | 121 | assert(ptype >= T_BOOLEAN && ptype <= T_OBJECT, "not array or void"); |
never@2895 | 122 | loc = &base[slot_num -= type2size[ptype]]; |
never@2895 | 123 | bool is_oop = (ptype == T_OBJECT && loc != retval); |
never@2895 | 124 | if (is_oop) blk->do_oop((oop*)loc); |
never@2895 | 125 | arg_num += 1; |
never@2895 | 126 | } |
never@2895 | 127 | assert(slot_num == 0, "must have processed all the arguments"); |
never@2895 | 128 | } |
never@2895 | 129 | |
never@2895 | 130 | oop MethodHandles::RicochetFrame::compute_saved_args_layout(bool read_cache, bool write_cache) { |
never@2895 | 131 | oop cookie = NULL; |
never@2895 | 132 | if (read_cache) { |
never@2895 | 133 | cookie = saved_args_layout(); |
never@2895 | 134 | if (cookie != NULL) return cookie; |
never@2895 | 135 | } |
never@2895 | 136 | oop target = saved_target(); |
never@2895 | 137 | oop mtype = java_lang_invoke_MethodHandle::type(target); |
never@2895 | 138 | oop mtform = java_lang_invoke_MethodType::form(mtype); |
never@2895 | 139 | cookie = java_lang_invoke_MethodTypeForm::vmlayout(mtform); |
never@2895 | 140 | if (write_cache) { |
never@2895 | 141 | (*saved_args_layout_addr()) = cookie; |
never@2895 | 142 | } |
never@2895 | 143 | return cookie; |
never@2895 | 144 | } |
never@2895 | 145 | |
never@2895 | 146 | void MethodHandles::RicochetFrame::generate_ricochet_blob(MacroAssembler* _masm, |
never@2895 | 147 | // output params: |
never@2895 | 148 | int* bounce_offset, |
never@2950 | 149 | int* exception_offset, |
never@2950 | 150 | int* frame_size_in_words) { |
never@2895 | 151 | (*frame_size_in_words) = RicochetFrame::frame_size_in_bytes() / wordSize; |
never@2895 | 152 | |
never@2895 | 153 | address start = __ pc(); |
never@2895 | 154 | |
jrose@1145 | 155 | #ifdef ASSERT |
never@2895 | 156 | __ hlt(); __ hlt(); __ hlt(); |
never@2895 | 157 | // here's a hint of something special: |
never@2895 | 158 | __ push(MAGIC_NUMBER_1); |
never@2895 | 159 | __ push(MAGIC_NUMBER_2); |
never@2895 | 160 | #endif //ASSERT |
never@2895 | 161 | __ hlt(); // not reached |
never@2895 | 162 | |
never@2895 | 163 | // A return PC has just been popped from the stack. |
never@2895 | 164 | // Return values are in registers. |
never@2895 | 165 | // The ebp points into the RicochetFrame, which contains |
never@2895 | 166 | // a cleanup continuation we must return to. |
never@2895 | 167 | |
never@2895 | 168 | (*bounce_offset) = __ pc() - start; |
never@2895 | 169 | BLOCK_COMMENT("ricochet_blob.bounce"); |
never@2895 | 170 | |
never@2895 | 171 | if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
twisti@2903 | 172 | trace_method_handle(_masm, "return/ricochet_blob.bounce"); |
never@2895 | 173 | |
never@2895 | 174 | __ jmp(frame_address(continuation_offset_in_bytes())); |
never@2895 | 175 | __ hlt(); |
never@2895 | 176 | DEBUG_ONLY(__ push(MAGIC_NUMBER_2)); |
never@2895 | 177 | |
never@2895 | 178 | (*exception_offset) = __ pc() - start; |
never@2895 | 179 | BLOCK_COMMENT("ricochet_blob.exception"); |
never@2895 | 180 | |
never@2895 | 181 | // compare this to Interpreter::rethrow_exception_entry, which is parallel code |
never@2895 | 182 | // for example, see TemplateInterpreterGenerator::generate_throw_exception |
never@2895 | 183 | // Live registers in: |
never@2895 | 184 | // rax: exception |
never@2895 | 185 | // rdx: return address/pc that threw exception (ignored, always equal to bounce addr) |
never@2895 | 186 | __ verify_oop(rax); |
never@2895 | 187 | |
never@2895 | 188 | // no need to empty_FPU_stack or reinit_heapbase, since caller frame will do the same if needed |
never@2895 | 189 | |
never@2895 | 190 | // Take down the frame. |
never@2895 | 191 | |
never@2895 | 192 | // Cf. InterpreterMacroAssembler::remove_activation. |
never@2895 | 193 | leave_ricochet_frame(_masm, /*rcx_recv=*/ noreg, |
never@2895 | 194 | saved_last_sp_register(), |
never@2895 | 195 | /*sender_pc_reg=*/ rdx); |
never@2895 | 196 | |
never@2895 | 197 | // In between activations - previous activation type unknown yet |
never@2895 | 198 | // compute continuation point - the continuation point expects the |
never@2895 | 199 | // following registers set up: |
never@2895 | 200 | // |
never@2895 | 201 | // rax: exception |
never@2895 | 202 | // rdx: return address/pc that threw exception |
never@2895 | 203 | // rsp: expression stack of caller |
never@2895 | 204 | // rbp: ebp of caller |
never@2895 | 205 | __ push(rax); // save exception |
never@2895 | 206 | __ push(rdx); // save return address |
never@2895 | 207 | Register thread_reg = LP64_ONLY(r15_thread) NOT_LP64(rdi); |
never@2895 | 208 | NOT_LP64(__ get_thread(thread_reg)); |
never@2895 | 209 | __ call_VM_leaf(CAST_FROM_FN_PTR(address, |
never@2895 | 210 | SharedRuntime::exception_handler_for_return_address), |
never@2895 | 211 | thread_reg, rdx); |
never@2895 | 212 | __ mov(rbx, rax); // save exception handler |
never@2895 | 213 | __ pop(rdx); // restore return address |
never@2895 | 214 | __ pop(rax); // restore exception |
never@2895 | 215 | __ jmp(rbx); // jump to exception |
never@2895 | 216 | // handler of caller |
never@2895 | 217 | } |
never@2895 | 218 | |
never@2895 | 219 | void MethodHandles::RicochetFrame::enter_ricochet_frame(MacroAssembler* _masm, |
never@2895 | 220 | Register rcx_recv, |
never@2895 | 221 | Register rax_argv, |
never@2895 | 222 | address return_handler, |
never@2895 | 223 | Register rbx_temp) { |
never@2895 | 224 | const Register saved_last_sp = saved_last_sp_register(); |
never@2895 | 225 | Address rcx_mh_vmtarget( rcx_recv, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes() ); |
never@2895 | 226 | Address rcx_amh_conversion( rcx_recv, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes() ); |
never@2895 | 227 | |
never@2895 | 228 | // Push the RicochetFrame a word at a time. |
never@2895 | 229 | // This creates something similar to an interpreter frame. |
never@2895 | 230 | // Cf. TemplateInterpreterGenerator::generate_fixed_frame. |
never@2895 | 231 | BLOCK_COMMENT("push RicochetFrame {"); |
never@2895 | 232 | DEBUG_ONLY(int rfo = (int) sizeof(RicochetFrame)); |
never@2895 | 233 | assert((rfo -= wordSize) == RicochetFrame::sender_pc_offset_in_bytes(), ""); |
never@2895 | 234 | #define RF_FIELD(push_value, name) \ |
never@2895 | 235 | { push_value; \ |
never@2895 | 236 | assert((rfo -= wordSize) == RicochetFrame::name##_offset_in_bytes(), ""); } |
never@2895 | 237 | RF_FIELD(__ push(rbp), sender_link); |
never@2895 | 238 | RF_FIELD(__ push(saved_last_sp), exact_sender_sp); // rsi/r13 |
never@2895 | 239 | RF_FIELD(__ pushptr(rcx_amh_conversion), conversion); |
never@2895 | 240 | RF_FIELD(__ push(rax_argv), saved_args_base); // can be updated if args are shifted |
never@2895 | 241 | RF_FIELD(__ push((int32_t) NULL_WORD), saved_args_layout); // cache for GC layout cookie |
never@2895 | 242 | if (UseCompressedOops) { |
never@2895 | 243 | __ load_heap_oop(rbx_temp, rcx_mh_vmtarget); |
never@2895 | 244 | RF_FIELD(__ push(rbx_temp), saved_target); |
never@2895 | 245 | } else { |
never@2895 | 246 | RF_FIELD(__ pushptr(rcx_mh_vmtarget), saved_target); |
never@2895 | 247 | } |
never@2895 | 248 | __ lea(rbx_temp, ExternalAddress(return_handler)); |
never@2895 | 249 | RF_FIELD(__ push(rbx_temp), continuation); |
never@2895 | 250 | #undef RF_FIELD |
never@2895 | 251 | assert(rfo == 0, "fully initialized the RicochetFrame"); |
never@2895 | 252 | // compute new frame pointer: |
never@2895 | 253 | __ lea(rbp, Address(rsp, RicochetFrame::sender_link_offset_in_bytes())); |
never@2895 | 254 | // Push guard word #1 in debug mode. |
never@2895 | 255 | DEBUG_ONLY(__ push((int32_t) RicochetFrame::MAGIC_NUMBER_1)); |
never@2895 | 256 | // For debugging, leave behind an indication of which stub built this frame. |
never@2895 | 257 | DEBUG_ONLY({ Label L; __ call(L, relocInfo::none); __ bind(L); }); |
never@2895 | 258 | BLOCK_COMMENT("} RicochetFrame"); |
never@2895 | 259 | } |
never@2895 | 260 | |
never@2895 | 261 | void MethodHandles::RicochetFrame::leave_ricochet_frame(MacroAssembler* _masm, |
never@2895 | 262 | Register rcx_recv, |
never@2895 | 263 | Register new_sp_reg, |
never@2895 | 264 | Register sender_pc_reg) { |
never@2895 | 265 | assert_different_registers(rcx_recv, new_sp_reg, sender_pc_reg); |
never@2895 | 266 | const Register saved_last_sp = saved_last_sp_register(); |
never@2895 | 267 | // Take down the frame. |
never@2895 | 268 | // Cf. InterpreterMacroAssembler::remove_activation. |
never@2895 | 269 | BLOCK_COMMENT("end_ricochet_frame {"); |
never@2895 | 270 | // TO DO: If (exact_sender_sp - extended_sender_sp) > THRESH, compact the frame down. |
never@2895 | 271 | // This will keep stack in bounds even with unlimited tailcalls, each with an adapter. |
never@2895 | 272 | if (rcx_recv->is_valid()) |
never@2895 | 273 | __ movptr(rcx_recv, RicochetFrame::frame_address(RicochetFrame::saved_target_offset_in_bytes())); |
never@2895 | 274 | __ movptr(sender_pc_reg, RicochetFrame::frame_address(RicochetFrame::sender_pc_offset_in_bytes())); |
never@2895 | 275 | __ movptr(saved_last_sp, RicochetFrame::frame_address(RicochetFrame::exact_sender_sp_offset_in_bytes())); |
never@2895 | 276 | __ movptr(rbp, RicochetFrame::frame_address(RicochetFrame::sender_link_offset_in_bytes())); |
never@2895 | 277 | __ mov(rsp, new_sp_reg); |
never@2895 | 278 | BLOCK_COMMENT("} end_ricochet_frame"); |
never@2895 | 279 | } |
never@2895 | 280 | |
never@2895 | 281 | // Emit code to verify that RBP is pointing at a valid ricochet frame. |
never@2895 | 282 | #ifdef ASSERT |
never@2895 | 283 | enum { |
never@2895 | 284 | ARG_LIMIT = 255, SLOP = 4, |
never@2895 | 285 | // use this parameter for checking for garbage stack movements: |
never@2895 | 286 | UNREASONABLE_STACK_MOVE = (ARG_LIMIT + SLOP) |
never@2895 | 287 | // the slop defends against false alarms due to fencepost errors |
never@2895 | 288 | }; |
never@2895 | 289 | |
never@2895 | 290 | void MethodHandles::RicochetFrame::verify_clean(MacroAssembler* _masm) { |
never@2895 | 291 | // The stack should look like this: |
never@2895 | 292 | // ... keep1 | dest=42 | keep2 | RF | magic | handler | magic | recursive args | |
never@2895 | 293 | // Check various invariants. |
never@2895 | 294 | verify_offsets(); |
never@2895 | 295 | |
never@2895 | 296 | Register rdi_temp = rdi; |
never@2895 | 297 | Register rcx_temp = rcx; |
never@2895 | 298 | { __ push(rdi_temp); __ push(rcx_temp); } |
never@2895 | 299 | #define UNPUSH_TEMPS \ |
never@2895 | 300 | { __ pop(rcx_temp); __ pop(rdi_temp); } |
never@2895 | 301 | |
never@2895 | 302 | Address magic_number_1_addr = RicochetFrame::frame_address(RicochetFrame::magic_number_1_offset_in_bytes()); |
never@2895 | 303 | Address magic_number_2_addr = RicochetFrame::frame_address(RicochetFrame::magic_number_2_offset_in_bytes()); |
never@2895 | 304 | Address continuation_addr = RicochetFrame::frame_address(RicochetFrame::continuation_offset_in_bytes()); |
never@2895 | 305 | Address conversion_addr = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes()); |
never@2895 | 306 | Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes()); |
never@2895 | 307 | |
never@2895 | 308 | Label L_bad, L_ok; |
never@2895 | 309 | BLOCK_COMMENT("verify_clean {"); |
never@2895 | 310 | // Magic numbers must check out: |
never@2895 | 311 | __ cmpptr(magic_number_1_addr, (int32_t) MAGIC_NUMBER_1); |
never@2895 | 312 | __ jcc(Assembler::notEqual, L_bad); |
never@2895 | 313 | __ cmpptr(magic_number_2_addr, (int32_t) MAGIC_NUMBER_2); |
never@2895 | 314 | __ jcc(Assembler::notEqual, L_bad); |
never@2895 | 315 | |
never@2895 | 316 | // Arguments pointer must look reasonable: |
never@2895 | 317 | __ movptr(rcx_temp, saved_args_base_addr); |
never@2895 | 318 | __ cmpptr(rcx_temp, rbp); |
never@2895 | 319 | __ jcc(Assembler::below, L_bad); |
never@2895 | 320 | __ subptr(rcx_temp, UNREASONABLE_STACK_MOVE * Interpreter::stackElementSize); |
never@2895 | 321 | __ cmpptr(rcx_temp, rbp); |
never@2895 | 322 | __ jcc(Assembler::above, L_bad); |
never@2895 | 323 | |
never@2895 | 324 | load_conversion_dest_type(_masm, rdi_temp, conversion_addr); |
never@2895 | 325 | __ cmpl(rdi_temp, T_VOID); |
never@2895 | 326 | __ jcc(Assembler::equal, L_ok); |
never@2895 | 327 | __ movptr(rcx_temp, saved_args_base_addr); |
never@2895 | 328 | load_conversion_vminfo(_masm, rdi_temp, conversion_addr); |
never@2895 | 329 | __ cmpptr(Address(rcx_temp, rdi_temp, Interpreter::stackElementScale()), |
never@2895 | 330 | (int32_t) RETURN_VALUE_PLACEHOLDER); |
never@2895 | 331 | __ jcc(Assembler::equal, L_ok); |
never@2895 | 332 | __ BIND(L_bad); |
never@2895 | 333 | UNPUSH_TEMPS; |
never@2895 | 334 | __ stop("damaged ricochet frame"); |
never@2895 | 335 | __ BIND(L_ok); |
never@2895 | 336 | UNPUSH_TEMPS; |
never@2895 | 337 | BLOCK_COMMENT("} verify_clean"); |
never@2895 | 338 | |
never@2895 | 339 | #undef UNPUSH_TEMPS |
never@2895 | 340 | |
never@2895 | 341 | } |
never@2895 | 342 | #endif //ASSERT |
never@2895 | 343 | |
never@2895 | 344 | void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg) { |
never@2895 | 345 | if (VerifyMethodHandles) |
never@2895 | 346 | verify_klass(_masm, klass_reg, SystemDictionaryHandles::Class_klass(), |
never@2895 | 347 | "AMH argument is a Class"); |
never@2895 | 348 | __ load_heap_oop(klass_reg, Address(klass_reg, java_lang_Class::klass_offset_in_bytes())); |
never@2895 | 349 | } |
never@2895 | 350 | |
never@2895 | 351 | void MethodHandles::load_conversion_vminfo(MacroAssembler* _masm, Register reg, Address conversion_field_addr) { |
never@2895 | 352 | int bits = BitsPerByte; |
never@2895 | 353 | int offset = (CONV_VMINFO_SHIFT / bits); |
never@2895 | 354 | int shift = (CONV_VMINFO_SHIFT % bits); |
never@2895 | 355 | __ load_unsigned_byte(reg, conversion_field_addr.plus_disp(offset)); |
never@2895 | 356 | assert(CONV_VMINFO_MASK == right_n_bits(bits - shift), "else change type of previous load"); |
never@2895 | 357 | assert(shift == 0, "no shift needed"); |
never@2895 | 358 | } |
never@2895 | 359 | |
never@2895 | 360 | void MethodHandles::load_conversion_dest_type(MacroAssembler* _masm, Register reg, Address conversion_field_addr) { |
never@2895 | 361 | int bits = BitsPerByte; |
never@2895 | 362 | int offset = (CONV_DEST_TYPE_SHIFT / bits); |
never@2895 | 363 | int shift = (CONV_DEST_TYPE_SHIFT % bits); |
never@2895 | 364 | __ load_unsigned_byte(reg, conversion_field_addr.plus_disp(offset)); |
never@2895 | 365 | assert(CONV_TYPE_MASK == right_n_bits(bits - shift), "else change type of previous load"); |
never@2895 | 366 | __ shrl(reg, shift); |
never@2895 | 367 | DEBUG_ONLY(int conv_type_bits = (int) exact_log2(CONV_TYPE_MASK+1)); |
never@2895 | 368 | assert((shift + conv_type_bits) == bits, "left justified in byte"); |
never@2895 | 369 | } |
never@2895 | 370 | |
never@2895 | 371 | void MethodHandles::load_stack_move(MacroAssembler* _masm, |
never@2895 | 372 | Register rdi_stack_move, |
never@2895 | 373 | Register rcx_amh, |
never@2895 | 374 | bool might_be_negative) { |
never@2950 | 375 | BLOCK_COMMENT("load_stack_move {"); |
never@2895 | 376 | Address rcx_amh_conversion(rcx_amh, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes()); |
never@2895 | 377 | __ movl(rdi_stack_move, rcx_amh_conversion); |
never@2895 | 378 | __ sarl(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
never@2895 | 379 | #ifdef _LP64 |
never@2895 | 380 | if (might_be_negative) { |
never@2895 | 381 | // clean high bits of stack motion register (was loaded as an int) |
never@2895 | 382 | __ movslq(rdi_stack_move, rdi_stack_move); |
never@2895 | 383 | } |
never@2895 | 384 | #endif //_LP64 |
never@2895 | 385 | if (VerifyMethodHandles) { |
never@2895 | 386 | Label L_ok, L_bad; |
never@2895 | 387 | int32_t stack_move_limit = 0x4000; // extra-large |
never@2895 | 388 | __ cmpptr(rdi_stack_move, stack_move_limit); |
never@2895 | 389 | __ jcc(Assembler::greaterEqual, L_bad); |
never@2895 | 390 | __ cmpptr(rdi_stack_move, -stack_move_limit); |
never@2895 | 391 | __ jcc(Assembler::greater, L_ok); |
never@2895 | 392 | __ bind(L_bad); |
never@2895 | 393 | __ stop("load_stack_move of garbage value"); |
never@2895 | 394 | __ BIND(L_ok); |
never@2895 | 395 | } |
never@2950 | 396 | BLOCK_COMMENT("} load_stack_move"); |
never@2895 | 397 | } |
never@2895 | 398 | |
never@2920 | 399 | #ifdef ASSERT |
never@2895 | 400 | void MethodHandles::RicochetFrame::verify_offsets() { |
never@2895 | 401 | // Check compatibility of this struct with the more generally used offsets of class frame: |
never@2895 | 402 | int ebp_off = sender_link_offset_in_bytes(); // offset from struct base to local rbp value |
never@2895 | 403 | assert(ebp_off + wordSize*frame::interpreter_frame_method_offset == saved_args_base_offset_in_bytes(), ""); |
never@2895 | 404 | assert(ebp_off + wordSize*frame::interpreter_frame_last_sp_offset == conversion_offset_in_bytes(), ""); |
never@2895 | 405 | assert(ebp_off + wordSize*frame::interpreter_frame_sender_sp_offset == exact_sender_sp_offset_in_bytes(), ""); |
never@2895 | 406 | // These last two have to be exact: |
never@2895 | 407 | assert(ebp_off + wordSize*frame::link_offset == sender_link_offset_in_bytes(), ""); |
never@2895 | 408 | assert(ebp_off + wordSize*frame::return_addr_offset == sender_pc_offset_in_bytes(), ""); |
never@2895 | 409 | } |
never@2895 | 410 | |
never@2895 | 411 | void MethodHandles::RicochetFrame::verify() const { |
never@2895 | 412 | verify_offsets(); |
never@2895 | 413 | assert(magic_number_1() == MAGIC_NUMBER_1, ""); |
never@2895 | 414 | assert(magic_number_2() == MAGIC_NUMBER_2, ""); |
never@2895 | 415 | if (!Universe::heap()->is_gc_active()) { |
never@2895 | 416 | if (saved_args_layout() != NULL) { |
never@2895 | 417 | assert(saved_args_layout()->is_method(), "must be valid oop"); |
never@2895 | 418 | } |
never@2895 | 419 | if (saved_target() != NULL) { |
never@2895 | 420 | assert(java_lang_invoke_MethodHandle::is_instance(saved_target()), "checking frame value"); |
never@2895 | 421 | } |
never@2895 | 422 | } |
never@2895 | 423 | int conv_op = adapter_conversion_op(conversion()); |
never@2895 | 424 | assert(conv_op == java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS || |
never@2895 | 425 | conv_op == java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS || |
never@2895 | 426 | conv_op == java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF, |
never@2895 | 427 | "must be a sane conversion"); |
never@2895 | 428 | if (has_return_value_slot()) { |
never@2895 | 429 | assert(*return_value_slot_addr() == RETURN_VALUE_PLACEHOLDER, ""); |
never@2895 | 430 | } |
never@2895 | 431 | } |
never@2895 | 432 | #endif //PRODUCT |
never@2895 | 433 | |
never@2895 | 434 | #ifdef ASSERT |
never@2895 | 435 | void MethodHandles::verify_argslot(MacroAssembler* _masm, |
never@2895 | 436 | Register argslot_reg, |
never@2895 | 437 | const char* error_message) { |
jrose@1145 | 438 | // Verify that argslot lies within (rsp, rbp]. |
jrose@1145 | 439 | Label L_ok, L_bad; |
never@2895 | 440 | BLOCK_COMMENT("verify_argslot {"); |
twisti@1739 | 441 | __ cmpptr(argslot_reg, rbp); |
twisti@1570 | 442 | __ jccb(Assembler::above, L_bad); |
twisti@1739 | 443 | __ cmpptr(rsp, argslot_reg); |
twisti@1570 | 444 | __ jccb(Assembler::below, L_ok); |
jrose@1145 | 445 | __ bind(L_bad); |
jrose@1145 | 446 | __ stop(error_message); |
never@2895 | 447 | __ BIND(L_ok); |
jrose@2148 | 448 | BLOCK_COMMENT("} verify_argslot"); |
jrose@1145 | 449 | } |
jrose@1145 | 450 | |
never@2895 | 451 | void MethodHandles::verify_argslots(MacroAssembler* _masm, |
never@2895 | 452 | RegisterOrConstant arg_slots, |
never@2895 | 453 | Register arg_slot_base_reg, |
never@2895 | 454 | bool negate_argslots, |
never@2895 | 455 | const char* error_message) { |
never@2895 | 456 | // Verify that [argslot..argslot+size) lies within (rsp, rbp). |
never@2895 | 457 | Label L_ok, L_bad; |
never@2895 | 458 | Register rdi_temp = rdi; |
never@2895 | 459 | BLOCK_COMMENT("verify_argslots {"); |
never@2895 | 460 | __ push(rdi_temp); |
never@2895 | 461 | if (negate_argslots) { |
never@2895 | 462 | if (arg_slots.is_constant()) { |
never@2895 | 463 | arg_slots = -1 * arg_slots.as_constant(); |
never@2895 | 464 | } else { |
never@2895 | 465 | __ movptr(rdi_temp, arg_slots); |
never@2895 | 466 | __ negptr(rdi_temp); |
never@2895 | 467 | arg_slots = rdi_temp; |
never@2895 | 468 | } |
never@2895 | 469 | } |
never@2895 | 470 | __ lea(rdi_temp, Address(arg_slot_base_reg, arg_slots, Interpreter::stackElementScale())); |
never@2895 | 471 | __ cmpptr(rdi_temp, rbp); |
never@2895 | 472 | __ pop(rdi_temp); |
never@2895 | 473 | __ jcc(Assembler::above, L_bad); |
never@2895 | 474 | __ cmpptr(rsp, arg_slot_base_reg); |
never@2895 | 475 | __ jcc(Assembler::below, L_ok); |
never@2895 | 476 | __ bind(L_bad); |
never@2895 | 477 | __ stop(error_message); |
never@2895 | 478 | __ BIND(L_ok); |
never@2895 | 479 | BLOCK_COMMENT("} verify_argslots"); |
never@2895 | 480 | } |
never@2895 | 481 | |
never@2895 | 482 | // Make sure that arg_slots has the same sign as the given direction. |
never@2895 | 483 | // If (and only if) arg_slots is a assembly-time constant, also allow it to be zero. |
never@2895 | 484 | void MethodHandles::verify_stack_move(MacroAssembler* _masm, |
never@2895 | 485 | RegisterOrConstant arg_slots, int direction) { |
never@2895 | 486 | bool allow_zero = arg_slots.is_constant(); |
never@2895 | 487 | if (direction == 0) { direction = +1; allow_zero = true; } |
never@2895 | 488 | assert(stack_move_unit() == -1, "else add extra checks here"); |
never@2895 | 489 | if (arg_slots.is_register()) { |
never@2895 | 490 | Label L_ok, L_bad; |
never@2895 | 491 | BLOCK_COMMENT("verify_stack_move {"); |
never@2895 | 492 | // testl(arg_slots.as_register(), -stack_move_unit() - 1); // no need |
never@2895 | 493 | // jcc(Assembler::notZero, L_bad); |
never@2895 | 494 | __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
never@2895 | 495 | if (direction > 0) { |
never@2895 | 496 | __ jcc(allow_zero ? Assembler::less : Assembler::lessEqual, L_bad); |
never@2895 | 497 | __ cmpptr(arg_slots.as_register(), (int32_t) UNREASONABLE_STACK_MOVE); |
never@2895 | 498 | __ jcc(Assembler::less, L_ok); |
never@2895 | 499 | } else { |
never@2895 | 500 | __ jcc(allow_zero ? Assembler::greater : Assembler::greaterEqual, L_bad); |
never@2895 | 501 | __ cmpptr(arg_slots.as_register(), (int32_t) -UNREASONABLE_STACK_MOVE); |
never@2895 | 502 | __ jcc(Assembler::greater, L_ok); |
never@2895 | 503 | } |
never@2895 | 504 | __ bind(L_bad); |
never@2895 | 505 | if (direction > 0) |
never@2895 | 506 | __ stop("assert arg_slots > 0"); |
never@2895 | 507 | else |
never@2895 | 508 | __ stop("assert arg_slots < 0"); |
never@2895 | 509 | __ BIND(L_ok); |
never@2895 | 510 | BLOCK_COMMENT("} verify_stack_move"); |
never@2895 | 511 | } else { |
never@2895 | 512 | intptr_t size = arg_slots.as_constant(); |
never@2895 | 513 | if (direction < 0) size = -size; |
never@2895 | 514 | assert(size >= 0, "correct direction of constant move"); |
never@2895 | 515 | assert(size < UNREASONABLE_STACK_MOVE, "reasonable size of constant move"); |
never@2895 | 516 | } |
never@2895 | 517 | } |
never@2895 | 518 | |
never@2895 | 519 | void MethodHandles::verify_klass(MacroAssembler* _masm, |
never@2895 | 520 | Register obj, KlassHandle klass, |
never@2895 | 521 | const char* error_message) { |
never@2895 | 522 | oop* klass_addr = klass.raw_value(); |
never@2895 | 523 | assert(klass_addr >= SystemDictionaryHandles::Object_klass().raw_value() && |
never@2895 | 524 | klass_addr <= SystemDictionaryHandles::Long_klass().raw_value(), |
never@2895 | 525 | "must be one of the SystemDictionaryHandles"); |
never@2895 | 526 | Register temp = rdi; |
never@2895 | 527 | Label L_ok, L_bad; |
never@2895 | 528 | BLOCK_COMMENT("verify_klass {"); |
never@2895 | 529 | __ verify_oop(obj); |
never@2895 | 530 | __ testptr(obj, obj); |
never@2895 | 531 | __ jcc(Assembler::zero, L_bad); |
never@2895 | 532 | __ push(temp); |
never@2895 | 533 | __ load_klass(temp, obj); |
never@2895 | 534 | __ cmpptr(temp, ExternalAddress((address) klass_addr)); |
never@2895 | 535 | __ jcc(Assembler::equal, L_ok); |
never@2895 | 536 | intptr_t super_check_offset = klass->super_check_offset(); |
never@2895 | 537 | __ movptr(temp, Address(temp, super_check_offset)); |
never@2895 | 538 | __ cmpptr(temp, ExternalAddress((address) klass_addr)); |
never@2895 | 539 | __ jcc(Assembler::equal, L_ok); |
never@2895 | 540 | __ pop(temp); |
never@2895 | 541 | __ bind(L_bad); |
never@2895 | 542 | __ stop(error_message); |
never@2895 | 543 | __ BIND(L_ok); |
never@2895 | 544 | __ pop(temp); |
never@2895 | 545 | BLOCK_COMMENT("} verify_klass"); |
never@2895 | 546 | } |
never@2895 | 547 | #endif //ASSERT |
jrose@1145 | 548 | |
never@3005 | 549 | void MethodHandles::jump_from_method_handle(MacroAssembler* _masm, Register method, Register temp) { |
never@3005 | 550 | if (JvmtiExport::can_post_interpreter_events()) { |
never@3005 | 551 | Label run_compiled_code; |
never@3005 | 552 | // JVMTI events, such as single-stepping, are implemented partly by avoiding running |
never@3005 | 553 | // compiled code in threads for which the event is enabled. Check here for |
never@3005 | 554 | // interp_only_mode if these events CAN be enabled. |
never@3005 | 555 | #ifdef _LP64 |
never@3005 | 556 | Register rthread = r15_thread; |
never@3005 | 557 | #else |
never@3005 | 558 | Register rthread = temp; |
never@3005 | 559 | __ get_thread(rthread); |
never@3005 | 560 | #endif |
never@3005 | 561 | // interp_only is an int, on little endian it is sufficient to test the byte only |
never@3005 | 562 | // Is a cmpl faster? |
never@3005 | 563 | __ cmpb(Address(rthread, JavaThread::interp_only_mode_offset()), 0); |
never@3005 | 564 | __ jccb(Assembler::zero, run_compiled_code); |
never@3005 | 565 | __ jmp(Address(method, methodOopDesc::interpreter_entry_offset())); |
never@3005 | 566 | __ bind(run_compiled_code); |
never@3005 | 567 | } |
never@3005 | 568 | __ jmp(Address(method, methodOopDesc::from_interpreted_offset())); |
never@3005 | 569 | } |
never@3005 | 570 | |
jrose@1145 | 571 | // Code generation |
jrose@1145 | 572 | address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { |
jrose@1145 | 573 | // rbx: methodOop |
jrose@1145 | 574 | // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
jrose@1145 | 575 | // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@2148 | 576 | // rdx, rdi: garbage temp, blown away |
jrose@1145 | 577 | |
jrose@1145 | 578 | Register rbx_method = rbx; |
jrose@1145 | 579 | Register rcx_recv = rcx; |
jrose@1145 | 580 | Register rax_mtype = rax; |
jrose@1145 | 581 | Register rdx_temp = rdx; |
jrose@2148 | 582 | Register rdi_temp = rdi; |
jrose@1145 | 583 | |
jrose@1145 | 584 | // emit WrongMethodType path first, to enable jccb back-branch from main path |
jrose@1145 | 585 | Label wrong_method_type; |
jrose@1145 | 586 | __ bind(wrong_method_type); |
jrose@2952 | 587 | Label invoke_generic_slow_path, invoke_exact_error_path; |
jrose@2148 | 588 | assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
jrose@2148 | 589 | __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeExact); |
jrose@2148 | 590 | __ jcc(Assembler::notEqual, invoke_generic_slow_path); |
jrose@2952 | 591 | __ jmp(invoke_exact_error_path); |
jrose@1145 | 592 | |
jrose@1145 | 593 | // here's where control starts out: |
jrose@1145 | 594 | __ align(CodeEntryAlignment); |
jrose@1145 | 595 | address entry_point = __ pc(); |
jrose@1145 | 596 | |
jrose@1145 | 597 | // fetch the MethodType from the method handle into rax (the 'check' register) |
never@2895 | 598 | // FIXME: Interpreter should transmit pre-popped stack pointer, to locate base of arg list. |
never@2895 | 599 | // This would simplify several touchy bits of code. |
never@2895 | 600 | // See 6984712: JSR 292 method handle calls need a clean argument base pointer |
jrose@1145 | 601 | { |
jrose@1145 | 602 | Register tem = rbx_method; |
jrose@1145 | 603 | for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { |
jrose@1145 | 604 | __ movptr(rax_mtype, Address(tem, *pchase)); |
jrose@1145 | 605 | tem = rax_mtype; // in case there is another indirection |
jrose@1145 | 606 | } |
jrose@1145 | 607 | } |
jrose@1145 | 608 | |
jrose@1145 | 609 | // given the MethodType, find out where the MH argument is buried |
jrose@2639 | 610 | __ load_heap_oop(rdx_temp, Address(rax_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, rdi_temp))); |
jrose@2148 | 611 | Register rdx_vmslots = rdx_temp; |
jrose@2639 | 612 | __ movl(rdx_vmslots, Address(rdx_temp, __ delayed_value(java_lang_invoke_MethodTypeForm::vmslots_offset_in_bytes, rdi_temp))); |
never@2895 | 613 | Address mh_receiver_slot_addr = __ argument_address(rdx_vmslots); |
never@2895 | 614 | __ movptr(rcx_recv, mh_receiver_slot_addr); |
jrose@1145 | 615 | |
jrose@2148 | 616 | trace_method_handle(_masm, "invokeExact"); |
jrose@2148 | 617 | |
jrose@2148 | 618 | __ check_method_handle_type(rax_mtype, rcx_recv, rdi_temp, wrong_method_type); |
never@2895 | 619 | |
never@2895 | 620 | // Nobody uses the MH receiver slot after this. Make sure. |
never@2895 | 621 | DEBUG_ONLY(__ movptr(mh_receiver_slot_addr, (int32_t)0x999999)); |
never@2895 | 622 | |
jrose@2148 | 623 | __ jump_to_method_handle_entry(rcx_recv, rdi_temp); |
jrose@2148 | 624 | |
jrose@2952 | 625 | // error path for invokeExact (only) |
jrose@2952 | 626 | __ bind(invoke_exact_error_path); |
never@2978 | 627 | // Stub wants expected type in rax and the actual type in rcx |
never@2978 | 628 | __ jump(ExternalAddress(StubRoutines::throw_WrongMethodTypeException_entry())); |
jrose@2952 | 629 | |
jrose@2148 | 630 | // for invokeGeneric (only), apply argument and result conversions on the fly |
jrose@2148 | 631 | __ bind(invoke_generic_slow_path); |
jrose@2148 | 632 | #ifdef ASSERT |
never@2895 | 633 | if (VerifyMethodHandles) { |
never@2895 | 634 | Label L; |
jrose@2148 | 635 | __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeGeneric); |
jrose@2148 | 636 | __ jcc(Assembler::equal, L); |
jrose@2148 | 637 | __ stop("bad methodOop::intrinsic_id"); |
jrose@2148 | 638 | __ bind(L); |
jrose@2148 | 639 | } |
jrose@2148 | 640 | #endif //ASSERT |
jrose@2148 | 641 | Register rbx_temp = rbx_method; // don't need it now |
jrose@2148 | 642 | |
jrose@2148 | 643 | // make room on the stack for another pointer: |
jrose@2148 | 644 | Register rcx_argslot = rcx_recv; |
jrose@2148 | 645 | __ lea(rcx_argslot, __ argument_address(rdx_vmslots, 1)); |
never@2895 | 646 | insert_arg_slots(_masm, 2 * stack_move_unit(), |
jrose@2148 | 647 | rcx_argslot, rbx_temp, rdx_temp); |
jrose@2148 | 648 | |
jrose@2148 | 649 | // load up an adapter from the calling type (Java weaves this) |
jrose@2148 | 650 | Register rdx_adapter = rdx_temp; |
twisti@2903 | 651 | __ load_heap_oop(rdx_temp, Address(rax_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, rdi_temp))); |
twisti@2903 | 652 | __ load_heap_oop(rdx_adapter, Address(rdx_temp, __ delayed_value(java_lang_invoke_MethodTypeForm::genericInvoker_offset_in_bytes, rdi_temp))); |
twisti@2903 | 653 | __ verify_oop(rdx_adapter); |
jrose@2148 | 654 | __ movptr(Address(rcx_argslot, 1 * Interpreter::stackElementSize), rdx_adapter); |
jrose@2148 | 655 | // As a trusted first argument, pass the type being called, so the adapter knows |
jrose@2148 | 656 | // the actual types of the arguments and return values. |
jrose@2148 | 657 | // (Generic invokers are shared among form-families of method-type.) |
jrose@2148 | 658 | __ movptr(Address(rcx_argslot, 0 * Interpreter::stackElementSize), rax_mtype); |
jrose@2148 | 659 | // FIXME: assert that rdx_adapter is of the right method-type. |
jrose@2148 | 660 | __ mov(rcx, rdx_adapter); |
jrose@2148 | 661 | trace_method_handle(_masm, "invokeGeneric"); |
jrose@2148 | 662 | __ jump_to_method_handle_entry(rcx, rdi_temp); |
jrose@2148 | 663 | |
jrose@1145 | 664 | return entry_point; |
jrose@1145 | 665 | } |
jrose@1145 | 666 | |
jrose@1145 | 667 | // Helper to insert argument slots into the stack. |
never@2895 | 668 | // arg_slots must be a multiple of stack_move_unit() and < 0 |
never@2895 | 669 | // rax_argslot is decremented to point to the new (shifted) location of the argslot |
never@2895 | 670 | // But, rdx_temp ends up holding the original value of rax_argslot. |
jrose@1145 | 671 | void MethodHandles::insert_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 672 | RegisterOrConstant arg_slots, |
jrose@1145 | 673 | Register rax_argslot, |
never@2895 | 674 | Register rbx_temp, Register rdx_temp) { |
never@2895 | 675 | // allow constant zero |
never@2895 | 676 | if (arg_slots.is_constant() && arg_slots.as_constant() == 0) |
never@2895 | 677 | return; |
jrose@1145 | 678 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 679 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
never@2895 | 680 | if (VerifyMethodHandles) |
never@2895 | 681 | verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame"); |
never@2895 | 682 | if (VerifyMethodHandles) |
never@2895 | 683 | verify_stack_move(_masm, arg_slots, -1); |
jrose@1145 | 684 | |
jrose@1145 | 685 | // Make space on the stack for the inserted argument(s). |
jrose@1145 | 686 | // Then pull down everything shallower than rax_argslot. |
jrose@1145 | 687 | // The stacked return address gets pulled down with everything else. |
jrose@1145 | 688 | // That is, copy [rsp, argslot) downward by -size words. In pseudo-code: |
jrose@1145 | 689 | // rsp -= size; |
jrose@1145 | 690 | // for (rdx = rsp + size; rdx < argslot; rdx++) |
jrose@1145 | 691 | // rdx[-size] = rdx[0] |
jrose@1145 | 692 | // argslot -= size; |
jrose@2148 | 693 | BLOCK_COMMENT("insert_arg_slots {"); |
jrose@1145 | 694 | __ mov(rdx_temp, rsp); // source pointer for copy |
never@2895 | 695 | __ lea(rsp, Address(rsp, arg_slots, Interpreter::stackElementScale())); |
jrose@1145 | 696 | { |
jrose@1145 | 697 | Label loop; |
jrose@2148 | 698 | __ BIND(loop); |
jrose@1145 | 699 | // pull one word down each time through the loop |
jrose@1145 | 700 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
never@2895 | 701 | __ movptr(Address(rdx_temp, arg_slots, Interpreter::stackElementScale()), rbx_temp); |
jrose@1145 | 702 | __ addptr(rdx_temp, wordSize); |
jrose@1145 | 703 | __ cmpptr(rdx_temp, rax_argslot); |
twisti@2903 | 704 | __ jcc(Assembler::below, loop); |
jrose@1145 | 705 | } |
jrose@1145 | 706 | |
jrose@1145 | 707 | // Now move the argslot down, to point to the opened-up space. |
never@2895 | 708 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Interpreter::stackElementScale())); |
jrose@2148 | 709 | BLOCK_COMMENT("} insert_arg_slots"); |
jrose@1145 | 710 | } |
jrose@1145 | 711 | |
jrose@1145 | 712 | // Helper to remove argument slots from the stack. |
never@2895 | 713 | // arg_slots must be a multiple of stack_move_unit() and > 0 |
jrose@1145 | 714 | void MethodHandles::remove_arg_slots(MacroAssembler* _masm, |
never@2895 | 715 | RegisterOrConstant arg_slots, |
never@2895 | 716 | Register rax_argslot, |
never@2895 | 717 | Register rbx_temp, Register rdx_temp) { |
never@2895 | 718 | // allow constant zero |
never@2895 | 719 | if (arg_slots.is_constant() && arg_slots.as_constant() == 0) |
never@2895 | 720 | return; |
jrose@1145 | 721 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 722 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
never@2895 | 723 | if (VerifyMethodHandles) |
never@2895 | 724 | verify_argslots(_masm, arg_slots, rax_argslot, false, |
never@2895 | 725 | "deleted argument(s) must fall within current frame"); |
never@2895 | 726 | if (VerifyMethodHandles) |
never@2895 | 727 | verify_stack_move(_masm, arg_slots, +1); |
jrose@1145 | 728 | |
jrose@2148 | 729 | BLOCK_COMMENT("remove_arg_slots {"); |
jrose@1145 | 730 | // Pull up everything shallower than rax_argslot. |
jrose@1145 | 731 | // Then remove the excess space on the stack. |
jrose@1145 | 732 | // The stacked return address gets pulled up with everything else. |
jrose@1145 | 733 | // That is, copy [rsp, argslot) upward by size words. In pseudo-code: |
jrose@1145 | 734 | // for (rdx = argslot-1; rdx >= rsp; --rdx) |
jrose@1145 | 735 | // rdx[size] = rdx[0] |
jrose@1145 | 736 | // argslot += size; |
jrose@1145 | 737 | // rsp += size; |
jrose@1145 | 738 | __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy |
jrose@1145 | 739 | { |
jrose@1145 | 740 | Label loop; |
jrose@2148 | 741 | __ BIND(loop); |
jrose@1145 | 742 | // pull one word up each time through the loop |
jrose@1145 | 743 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
never@2895 | 744 | __ movptr(Address(rdx_temp, arg_slots, Interpreter::stackElementScale()), rbx_temp); |
jrose@1145 | 745 | __ addptr(rdx_temp, -wordSize); |
jrose@1145 | 746 | __ cmpptr(rdx_temp, rsp); |
twisti@2903 | 747 | __ jcc(Assembler::aboveEqual, loop); |
jrose@1145 | 748 | } |
jrose@1145 | 749 | |
jrose@1145 | 750 | // Now move the argslot up, to point to the just-copied block. |
never@2895 | 751 | __ lea(rsp, Address(rsp, arg_slots, Interpreter::stackElementScale())); |
jrose@1145 | 752 | // And adjust the argslot address to point at the deletion point. |
never@2895 | 753 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Interpreter::stackElementScale())); |
jrose@2148 | 754 | BLOCK_COMMENT("} remove_arg_slots"); |
jrose@1145 | 755 | } |
jrose@1145 | 756 | |
never@2895 | 757 | // Helper to copy argument slots to the top of the stack. |
never@2895 | 758 | // The sequence starts with rax_argslot and is counted by slot_count |
never@2895 | 759 | // slot_count must be a multiple of stack_move_unit() and >= 0 |
never@2895 | 760 | // This function blows the temps but does not change rax_argslot. |
never@2895 | 761 | void MethodHandles::push_arg_slots(MacroAssembler* _masm, |
never@2895 | 762 | Register rax_argslot, |
never@2895 | 763 | RegisterOrConstant slot_count, |
never@2895 | 764 | int skip_words_count, |
never@2895 | 765 | Register rbx_temp, Register rdx_temp) { |
never@2895 | 766 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
never@2895 | 767 | (!slot_count.is_register() ? rbp : slot_count.as_register()), |
never@2895 | 768 | rsp); |
never@2895 | 769 | assert(Interpreter::stackElementSize == wordSize, "else change this code"); |
never@2895 | 770 | |
never@2895 | 771 | if (VerifyMethodHandles) |
never@2895 | 772 | verify_stack_move(_masm, slot_count, 0); |
never@2895 | 773 | |
never@2895 | 774 | // allow constant zero |
never@2895 | 775 | if (slot_count.is_constant() && slot_count.as_constant() == 0) |
never@2895 | 776 | return; |
never@2895 | 777 | |
never@2895 | 778 | BLOCK_COMMENT("push_arg_slots {"); |
never@2895 | 779 | |
never@2895 | 780 | Register rbx_top = rbx_temp; |
never@2895 | 781 | |
never@2895 | 782 | // There is at most 1 word to carry down with the TOS. |
never@2895 | 783 | switch (skip_words_count) { |
never@2895 | 784 | case 1: __ pop(rdx_temp); break; |
never@2895 | 785 | case 0: break; |
never@2895 | 786 | default: ShouldNotReachHere(); |
never@2895 | 787 | } |
never@2895 | 788 | |
never@2895 | 789 | if (slot_count.is_constant()) { |
never@2895 | 790 | for (int i = slot_count.as_constant() - 1; i >= 0; i--) { |
never@2895 | 791 | __ pushptr(Address(rax_argslot, i * wordSize)); |
never@2895 | 792 | } |
never@2895 | 793 | } else { |
never@2895 | 794 | Label L_plural, L_loop, L_break; |
never@2895 | 795 | // Emit code to dynamically check for the common cases, zero and one slot. |
never@2895 | 796 | __ cmpl(slot_count.as_register(), (int32_t) 1); |
never@2895 | 797 | __ jccb(Assembler::greater, L_plural); |
never@2895 | 798 | __ jccb(Assembler::less, L_break); |
never@2895 | 799 | __ pushptr(Address(rax_argslot, 0)); |
never@2895 | 800 | __ jmpb(L_break); |
never@2895 | 801 | __ BIND(L_plural); |
never@2895 | 802 | |
never@2895 | 803 | // Loop for 2 or more: |
never@2895 | 804 | // rbx = &rax[slot_count] |
never@2895 | 805 | // while (rbx > rax) *(--rsp) = *(--rbx) |
never@2895 | 806 | __ lea(rbx_top, Address(rax_argslot, slot_count, Address::times_ptr)); |
never@2895 | 807 | __ BIND(L_loop); |
never@2895 | 808 | __ subptr(rbx_top, wordSize); |
never@2895 | 809 | __ pushptr(Address(rbx_top, 0)); |
never@2895 | 810 | __ cmpptr(rbx_top, rax_argslot); |
never@2895 | 811 | __ jcc(Assembler::above, L_loop); |
never@2895 | 812 | __ bind(L_break); |
never@2895 | 813 | } |
never@2895 | 814 | switch (skip_words_count) { |
never@2895 | 815 | case 1: __ push(rdx_temp); break; |
never@2895 | 816 | case 0: break; |
never@2895 | 817 | default: ShouldNotReachHere(); |
never@2895 | 818 | } |
never@2895 | 819 | BLOCK_COMMENT("} push_arg_slots"); |
never@2895 | 820 | } |
never@2895 | 821 | |
never@2895 | 822 | // in-place movement; no change to rsp |
never@2895 | 823 | // blows rax_temp, rdx_temp |
never@2895 | 824 | void MethodHandles::move_arg_slots_up(MacroAssembler* _masm, |
never@2895 | 825 | Register rbx_bottom, // invariant |
never@2895 | 826 | Address top_addr, // can use rax_temp |
never@2895 | 827 | RegisterOrConstant positive_distance_in_slots, |
never@2895 | 828 | Register rax_temp, Register rdx_temp) { |
never@2895 | 829 | BLOCK_COMMENT("move_arg_slots_up {"); |
never@2895 | 830 | assert_different_registers(rbx_bottom, |
never@2895 | 831 | rax_temp, rdx_temp, |
never@2895 | 832 | positive_distance_in_slots.register_or_noreg()); |
never@2895 | 833 | Label L_loop, L_break; |
never@2895 | 834 | Register rax_top = rax_temp; |
never@2895 | 835 | if (!top_addr.is_same_address(Address(rax_top, 0))) |
never@2895 | 836 | __ lea(rax_top, top_addr); |
never@2895 | 837 | // Detect empty (or broken) loop: |
never@2895 | 838 | #ifdef ASSERT |
never@2895 | 839 | if (VerifyMethodHandles) { |
never@2895 | 840 | // Verify that &bottom < &top (non-empty interval) |
never@2895 | 841 | Label L_ok, L_bad; |
never@2895 | 842 | if (positive_distance_in_slots.is_register()) { |
never@2895 | 843 | __ cmpptr(positive_distance_in_slots.as_register(), (int32_t) 0); |
never@2895 | 844 | __ jcc(Assembler::lessEqual, L_bad); |
never@2895 | 845 | } |
never@2895 | 846 | __ cmpptr(rbx_bottom, rax_top); |
never@2895 | 847 | __ jcc(Assembler::below, L_ok); |
never@2895 | 848 | __ bind(L_bad); |
never@2895 | 849 | __ stop("valid bounds (copy up)"); |
never@2895 | 850 | __ BIND(L_ok); |
never@2895 | 851 | } |
never@2895 | 852 | #endif |
never@2895 | 853 | __ cmpptr(rbx_bottom, rax_top); |
never@2895 | 854 | __ jccb(Assembler::aboveEqual, L_break); |
never@2895 | 855 | // work rax down to rbx, copying contiguous data upwards |
never@2895 | 856 | // In pseudo-code: |
never@2895 | 857 | // [rbx, rax) = &[bottom, top) |
never@2895 | 858 | // while (--rax >= rbx) *(rax + distance) = *(rax + 0), rax--; |
never@2895 | 859 | __ BIND(L_loop); |
never@2895 | 860 | __ subptr(rax_top, wordSize); |
never@2895 | 861 | __ movptr(rdx_temp, Address(rax_top, 0)); |
never@2895 | 862 | __ movptr( Address(rax_top, positive_distance_in_slots, Address::times_ptr), rdx_temp); |
never@2895 | 863 | __ cmpptr(rax_top, rbx_bottom); |
never@2895 | 864 | __ jcc(Assembler::above, L_loop); |
never@2895 | 865 | assert(Interpreter::stackElementSize == wordSize, "else change loop"); |
never@2895 | 866 | __ bind(L_break); |
never@2895 | 867 | BLOCK_COMMENT("} move_arg_slots_up"); |
never@2895 | 868 | } |
never@2895 | 869 | |
never@2895 | 870 | // in-place movement; no change to rsp |
never@2895 | 871 | // blows rax_temp, rdx_temp |
never@2895 | 872 | void MethodHandles::move_arg_slots_down(MacroAssembler* _masm, |
never@2895 | 873 | Address bottom_addr, // can use rax_temp |
never@2895 | 874 | Register rbx_top, // invariant |
never@2895 | 875 | RegisterOrConstant negative_distance_in_slots, |
never@2895 | 876 | Register rax_temp, Register rdx_temp) { |
never@2895 | 877 | BLOCK_COMMENT("move_arg_slots_down {"); |
never@2895 | 878 | assert_different_registers(rbx_top, |
never@2895 | 879 | negative_distance_in_slots.register_or_noreg(), |
never@2895 | 880 | rax_temp, rdx_temp); |
never@2895 | 881 | Label L_loop, L_break; |
never@2895 | 882 | Register rax_bottom = rax_temp; |
never@2895 | 883 | if (!bottom_addr.is_same_address(Address(rax_bottom, 0))) |
never@2895 | 884 | __ lea(rax_bottom, bottom_addr); |
never@2895 | 885 | // Detect empty (or broken) loop: |
never@2895 | 886 | #ifdef ASSERT |
never@2895 | 887 | assert(!negative_distance_in_slots.is_constant() || negative_distance_in_slots.as_constant() < 0, ""); |
never@2895 | 888 | if (VerifyMethodHandles) { |
never@2895 | 889 | // Verify that &bottom < &top (non-empty interval) |
never@2895 | 890 | Label L_ok, L_bad; |
never@2895 | 891 | if (negative_distance_in_slots.is_register()) { |
never@2895 | 892 | __ cmpptr(negative_distance_in_slots.as_register(), (int32_t) 0); |
never@2895 | 893 | __ jcc(Assembler::greaterEqual, L_bad); |
never@2895 | 894 | } |
never@2895 | 895 | __ cmpptr(rax_bottom, rbx_top); |
never@2895 | 896 | __ jcc(Assembler::below, L_ok); |
never@2895 | 897 | __ bind(L_bad); |
never@2895 | 898 | __ stop("valid bounds (copy down)"); |
never@2895 | 899 | __ BIND(L_ok); |
never@2895 | 900 | } |
never@2895 | 901 | #endif |
never@2895 | 902 | __ cmpptr(rax_bottom, rbx_top); |
never@2895 | 903 | __ jccb(Assembler::aboveEqual, L_break); |
never@2895 | 904 | // work rax up to rbx, copying contiguous data downwards |
never@2895 | 905 | // In pseudo-code: |
never@2895 | 906 | // [rax, rbx) = &[bottom, top) |
never@2895 | 907 | // while (rax < rbx) *(rax - distance) = *(rax + 0), rax++; |
never@2895 | 908 | __ BIND(L_loop); |
never@2895 | 909 | __ movptr(rdx_temp, Address(rax_bottom, 0)); |
never@2895 | 910 | __ movptr( Address(rax_bottom, negative_distance_in_slots, Address::times_ptr), rdx_temp); |
never@2895 | 911 | __ addptr(rax_bottom, wordSize); |
never@2895 | 912 | __ cmpptr(rax_bottom, rbx_top); |
never@2895 | 913 | __ jcc(Assembler::below, L_loop); |
never@2895 | 914 | assert(Interpreter::stackElementSize == wordSize, "else change loop"); |
never@2895 | 915 | __ bind(L_break); |
never@2895 | 916 | BLOCK_COMMENT("} move_arg_slots_down"); |
never@2895 | 917 | } |
never@2895 | 918 | |
never@2895 | 919 | // Copy from a field or array element to a stacked argument slot. |
never@2895 | 920 | // is_element (ignored) says whether caller is loading an array element instead of an instance field. |
never@2895 | 921 | void MethodHandles::move_typed_arg(MacroAssembler* _masm, |
never@2895 | 922 | BasicType type, bool is_element, |
never@2895 | 923 | Address slot_dest, Address value_src, |
never@2895 | 924 | Register rbx_temp, Register rdx_temp) { |
never@2895 | 925 | BLOCK_COMMENT(!is_element ? "move_typed_arg {" : "move_typed_arg { (array element)"); |
never@2895 | 926 | if (type == T_OBJECT || type == T_ARRAY) { |
never@2895 | 927 | __ load_heap_oop(rbx_temp, value_src); |
never@2895 | 928 | __ movptr(slot_dest, rbx_temp); |
never@2895 | 929 | } else if (type != T_VOID) { |
never@2895 | 930 | int arg_size = type2aelembytes(type); |
never@2895 | 931 | bool arg_is_signed = is_signed_subword_type(type); |
never@2895 | 932 | int slot_size = (arg_size > wordSize) ? arg_size : wordSize; |
never@2895 | 933 | __ load_sized_value( rdx_temp, value_src, arg_size, arg_is_signed, rbx_temp); |
never@2895 | 934 | __ store_sized_value( slot_dest, rdx_temp, slot_size, rbx_temp); |
never@2895 | 935 | } |
never@2895 | 936 | BLOCK_COMMENT("} move_typed_arg"); |
never@2895 | 937 | } |
never@2895 | 938 | |
never@2895 | 939 | void MethodHandles::move_return_value(MacroAssembler* _masm, BasicType type, |
never@2895 | 940 | Address return_slot) { |
never@2895 | 941 | BLOCK_COMMENT("move_return_value {"); |
never@2895 | 942 | // Old versions of the JVM must clean the FPU stack after every return. |
never@2895 | 943 | #ifndef _LP64 |
never@2895 | 944 | #ifdef COMPILER2 |
never@2895 | 945 | // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases |
never@2895 | 946 | if ((type == T_FLOAT && UseSSE < 1) || (type == T_DOUBLE && UseSSE < 2)) { |
never@2895 | 947 | for (int i = 1; i < 8; i++) { |
never@2895 | 948 | __ ffree(i); |
never@2895 | 949 | } |
never@2895 | 950 | } else if (UseSSE < 2) { |
never@2895 | 951 | __ empty_FPU_stack(); |
never@2895 | 952 | } |
never@2895 | 953 | #endif //COMPILER2 |
never@2895 | 954 | #endif //!_LP64 |
never@2895 | 955 | |
never@2895 | 956 | // Look at the type and pull the value out of the corresponding register. |
never@2895 | 957 | if (type == T_VOID) { |
never@2895 | 958 | // nothing to do |
never@2895 | 959 | } else if (type == T_OBJECT) { |
never@2895 | 960 | __ movptr(return_slot, rax); |
never@2895 | 961 | } else if (type == T_INT || is_subword_type(type)) { |
never@2895 | 962 | // write the whole word, even if only 32 bits is significant |
never@2895 | 963 | __ movptr(return_slot, rax); |
never@2895 | 964 | } else if (type == T_LONG) { |
never@2895 | 965 | // store the value by parts |
never@2895 | 966 | // Note: We assume longs are continguous (if misaligned) on the interpreter stack. |
never@2895 | 967 | __ store_sized_value(return_slot, rax, BytesPerLong, rdx); |
never@2895 | 968 | } else if (NOT_LP64((type == T_FLOAT && UseSSE < 1) || |
never@2895 | 969 | (type == T_DOUBLE && UseSSE < 2) ||) |
never@2895 | 970 | false) { |
never@2895 | 971 | // Use old x86 FPU registers: |
never@2895 | 972 | if (type == T_FLOAT) |
never@2895 | 973 | __ fstp_s(return_slot); |
never@2895 | 974 | else |
never@2895 | 975 | __ fstp_d(return_slot); |
never@2895 | 976 | } else if (type == T_FLOAT) { |
never@2895 | 977 | __ movflt(return_slot, xmm0); |
never@2895 | 978 | } else if (type == T_DOUBLE) { |
never@2895 | 979 | __ movdbl(return_slot, xmm0); |
never@2895 | 980 | } else { |
never@2895 | 981 | ShouldNotReachHere(); |
never@2895 | 982 | } |
never@2895 | 983 | BLOCK_COMMENT("} move_return_value"); |
never@2895 | 984 | } |
never@2895 | 985 | |
never@2895 | 986 | |
jrose@1145 | 987 | #ifndef PRODUCT |
twisti@1568 | 988 | extern "C" void print_method_handle(oop mh); |
jrose@1145 | 989 | void trace_method_handle_stub(const char* adaptername, |
never@2895 | 990 | oop mh, |
never@2895 | 991 | intptr_t* saved_regs, |
never@2895 | 992 | intptr_t* entry_sp, |
never@2868 | 993 | intptr_t* saved_sp, |
never@2895 | 994 | intptr_t* saved_bp) { |
jrose@1145 | 995 | // called as a leaf from native code: do not block the JVM! |
twisti@2903 | 996 | bool has_mh = (strstr(adaptername, "return/") == NULL); // return adapters don't have rcx_mh |
never@2895 | 997 | intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; |
twisti@2903 | 998 | intptr_t* base_sp = last_sp; |
twisti@2903 | 999 | typedef MethodHandles::RicochetFrame RicochetFrame; |
twisti@2903 | 1000 | RicochetFrame* rfp = (RicochetFrame*)((address)saved_bp - RicochetFrame::sender_link_offset_in_bytes()); |
twisti@2903 | 1001 | if (!UseRicochetFrames || Universe::heap()->is_in((address) rfp->saved_args_base())) { |
twisti@2903 | 1002 | // Probably an interpreter frame. |
twisti@2903 | 1003 | base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; |
twisti@2903 | 1004 | } |
twisti@2903 | 1005 | intptr_t mh_reg = (intptr_t)mh; |
twisti@2903 | 1006 | const char* mh_reg_name = "rcx_mh"; |
twisti@2903 | 1007 | if (!has_mh) mh_reg_name = "rcx"; |
twisti@2903 | 1008 | tty->print_cr("MH %s %s="PTR_FORMAT" sp=("PTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="PTR_FORMAT, |
twisti@2903 | 1009 | adaptername, mh_reg_name, mh_reg, |
twisti@2903 | 1010 | (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); |
jrose@2148 | 1011 | if (Verbose) { |
never@2895 | 1012 | tty->print(" reg dump: "); |
never@2895 | 1013 | int saved_regs_count = (entry_sp-1) - saved_regs; |
never@2895 | 1014 | // 32 bit: rdi rsi rbp rsp; rbx rdx rcx (*) rax |
never@2895 | 1015 | int i; |
never@2895 | 1016 | for (i = 0; i <= saved_regs_count; i++) { |
never@2895 | 1017 | if (i > 0 && i % 4 == 0 && i != saved_regs_count) { |
never@2895 | 1018 | tty->cr(); |
never@2895 | 1019 | tty->print(" + dump: "); |
never@2895 | 1020 | } |
twisti@2903 | 1021 | tty->print(" %d: "PTR_FORMAT, i, saved_regs[i]); |
never@2895 | 1022 | } |
never@2895 | 1023 | tty->cr(); |
twisti@2903 | 1024 | if (last_sp != saved_sp && last_sp != NULL) |
twisti@2903 | 1025 | tty->print_cr("*** last_sp="PTR_FORMAT, (intptr_t)last_sp); |
never@2895 | 1026 | int stack_dump_count = 16; |
never@2895 | 1027 | if (stack_dump_count < (int)(saved_bp + 2 - saved_sp)) |
never@2895 | 1028 | stack_dump_count = (int)(saved_bp + 2 - saved_sp); |
never@2895 | 1029 | if (stack_dump_count > 64) stack_dump_count = 48; |
never@2895 | 1030 | for (i = 0; i < stack_dump_count; i += 4) { |
twisti@2903 | 1031 | tty->print_cr(" dump at SP[%d] "PTR_FORMAT": "PTR_FORMAT" "PTR_FORMAT" "PTR_FORMAT" "PTR_FORMAT, |
never@2895 | 1032 | i, (intptr_t) &entry_sp[i+0], entry_sp[i+0], entry_sp[i+1], entry_sp[i+2], entry_sp[i+3]); |
never@2895 | 1033 | } |
twisti@2903 | 1034 | if (has_mh) |
twisti@2903 | 1035 | print_method_handle(mh); |
jrose@2148 | 1036 | } |
jrose@2148 | 1037 | } |
never@2895 | 1038 | |
never@2895 | 1039 | // The stub wraps the arguments in a struct on the stack to avoid |
never@2895 | 1040 | // dealing with the different calling conventions for passing 6 |
never@2895 | 1041 | // arguments. |
never@2895 | 1042 | struct MethodHandleStubArguments { |
never@2895 | 1043 | const char* adaptername; |
never@2895 | 1044 | oopDesc* mh; |
never@2895 | 1045 | intptr_t* saved_regs; |
never@2895 | 1046 | intptr_t* entry_sp; |
never@2895 | 1047 | intptr_t* saved_sp; |
never@2895 | 1048 | intptr_t* saved_bp; |
never@2895 | 1049 | }; |
never@2895 | 1050 | void trace_method_handle_stub_wrapper(MethodHandleStubArguments* args) { |
never@2895 | 1051 | trace_method_handle_stub(args->adaptername, |
never@2895 | 1052 | args->mh, |
never@2895 | 1053 | args->saved_regs, |
never@2895 | 1054 | args->entry_sp, |
never@2895 | 1055 | args->saved_sp, |
never@2895 | 1056 | args->saved_bp); |
never@2895 | 1057 | } |
never@2895 | 1058 | |
jrose@2148 | 1059 | void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
jrose@2148 | 1060 | if (!TraceMethodHandles) return; |
jrose@2148 | 1061 | BLOCK_COMMENT("trace_method_handle {"); |
never@2895 | 1062 | __ push(rax); |
never@2895 | 1063 | __ lea(rax, Address(rsp, wordSize * NOT_LP64(6) LP64_ONLY(14))); // entry_sp __ pusha(); |
jrose@2148 | 1064 | __ pusha(); |
never@2895 | 1065 | __ mov(rbx, rsp); |
never@2895 | 1066 | __ enter(); |
never@2895 | 1067 | // incoming state: |
never@2868 | 1068 | // rcx: method handle |
never@2895 | 1069 | // r13 or rsi: saved sp |
never@2895 | 1070 | // To avoid calling convention issues, build a record on the stack and pass the pointer to that instead. |
never@2895 | 1071 | __ push(rbp); // saved_bp |
never@2895 | 1072 | __ push(rsi); // saved_sp |
never@2895 | 1073 | __ push(rax); // entry_sp |
never@2895 | 1074 | __ push(rbx); // pusha saved_regs |
never@2895 | 1075 | __ push(rcx); // mh |
never@2895 | 1076 | __ push(rcx); // adaptername |
never@2895 | 1077 | __ movptr(Address(rsp, 0), (intptr_t) adaptername); |
never@2895 | 1078 | __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub_wrapper), rsp); |
never@2895 | 1079 | __ leave(); |
jrose@2148 | 1080 | __ popa(); |
never@2895 | 1081 | __ pop(rax); |
jrose@2148 | 1082 | BLOCK_COMMENT("} trace_method_handle"); |
jrose@1145 | 1083 | } |
jrose@1145 | 1084 | #endif //PRODUCT |
jrose@1145 | 1085 | |
jrose@1862 | 1086 | // which conversion op types are implemented here? |
jrose@1862 | 1087 | int MethodHandles::adapter_conversion_ops_supported_mask() { |
jrose@2639 | 1088 | return ((1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_ONLY) |
jrose@2639 | 1089 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_RAW) |
jrose@2639 | 1090 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_CHECK_CAST) |
jrose@2639 | 1091 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
jrose@2639 | 1092 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_REF_TO_PRIM) |
never@2895 | 1093 | //OP_PRIM_TO_REF is below... |
jrose@2639 | 1094 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_SWAP_ARGS) |
jrose@2639 | 1095 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_ROT_ARGS) |
jrose@2639 | 1096 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_DUP_ARGS) |
jrose@2639 | 1097 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_DROP_ARGS) |
never@2895 | 1098 | //OP_COLLECT_ARGS is below... |
never@2895 | 1099 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_SPREAD_ARGS) |
never@2895 | 1100 | |(!UseRicochetFrames ? 0 : |
never@2895 | 1101 | java_lang_invoke_MethodTypeForm::vmlayout_offset_in_bytes() <= 0 ? 0 : |
never@2895 | 1102 | ((1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF) |
never@2895 | 1103 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS) |
never@2895 | 1104 | |(1<<java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS) |
never@2895 | 1105 | )) |
jrose@1862 | 1106 | ); |
jrose@1862 | 1107 | } |
jrose@1862 | 1108 | |
twisti@2411 | 1109 | //------------------------------------------------------------------------------ |
twisti@2411 | 1110 | // MethodHandles::generate_method_handle_stub |
twisti@2411 | 1111 | // |
jrose@1145 | 1112 | // Generate an "entry" field for a method handle. |
jrose@1145 | 1113 | // This determines how the method handle will respond to calls. |
twisti@2436 | 1114 | void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
never@2895 | 1115 | MethodHandles::EntryKind ek_orig = ek_original_kind(ek); |
never@2895 | 1116 | |
jrose@1145 | 1117 | // Here is the register state during an interpreted call, |
jrose@1145 | 1118 | // as set up by generate_method_handle_interpreter_entry(): |
jrose@1145 | 1119 | // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) |
jrose@1145 | 1120 | // - rcx: receiver method handle |
jrose@1145 | 1121 | // - rax: method handle type (only used by the check_mtype entry point) |
jrose@1145 | 1122 | // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@1145 | 1123 | // - rdx: garbage temp, can blow away |
jrose@1145 | 1124 | |
twisti@2411 | 1125 | const Register rcx_recv = rcx; |
twisti@2411 | 1126 | const Register rax_argslot = rax; |
twisti@2411 | 1127 | const Register rbx_temp = rbx; |
twisti@2411 | 1128 | const Register rdx_temp = rdx; |
never@2895 | 1129 | const Register rdi_temp = rdi; |
jrose@1145 | 1130 | |
jrose@1474 | 1131 | // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls) |
jrose@1474 | 1132 | // and gen_c2i_adapter (from compiled calls): |
never@2895 | 1133 | const Register saved_last_sp = saved_last_sp_register(); |
twisti@2411 | 1134 | |
twisti@2411 | 1135 | // Argument registers for _raise_exception. |
twisti@2411 | 1136 | // 32-bit: Pass first two oop/int args in registers ECX and EDX. |
twisti@2411 | 1137 | const Register rarg0_code = LP64_ONLY(j_rarg0) NOT_LP64(rcx); |
twisti@2411 | 1138 | const Register rarg1_actual = LP64_ONLY(j_rarg1) NOT_LP64(rdx); |
twisti@2411 | 1139 | const Register rarg2_required = LP64_ONLY(j_rarg2) NOT_LP64(rdi); |
twisti@2411 | 1140 | assert_different_registers(rarg0_code, rarg1_actual, rarg2_required, saved_last_sp); |
jrose@1474 | 1141 | |
jrose@2639 | 1142 | guarantee(java_lang_invoke_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
jrose@1145 | 1143 | |
jrose@1145 | 1144 | // some handy addresses |
jrose@2639 | 1145 | Address rcx_mh_vmtarget( rcx_recv, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes() ); |
jrose@2639 | 1146 | Address rcx_dmh_vmindex( rcx_recv, java_lang_invoke_DirectMethodHandle::vmindex_offset_in_bytes() ); |
jrose@1145 | 1147 | |
jrose@2639 | 1148 | Address rcx_bmh_vmargslot( rcx_recv, java_lang_invoke_BoundMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@2639 | 1149 | Address rcx_bmh_argument( rcx_recv, java_lang_invoke_BoundMethodHandle::argument_offset_in_bytes() ); |
jrose@1145 | 1150 | |
jrose@2639 | 1151 | Address rcx_amh_vmargslot( rcx_recv, java_lang_invoke_AdapterMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@2639 | 1152 | Address rcx_amh_argument( rcx_recv, java_lang_invoke_AdapterMethodHandle::argument_offset_in_bytes() ); |
jrose@2639 | 1153 | Address rcx_amh_conversion( rcx_recv, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes() ); |
jrose@1145 | 1154 | Address vmarg; // __ argument_address(vmargslot) |
jrose@1145 | 1155 | |
jrose@1474 | 1156 | const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); |
jrose@1474 | 1157 | |
jrose@1145 | 1158 | if (have_entry(ek)) { |
jrose@1145 | 1159 | __ nop(); // empty stubs make SG sick |
jrose@1145 | 1160 | return; |
jrose@1145 | 1161 | } |
jrose@1145 | 1162 | |
never@2895 | 1163 | #ifdef ASSERT |
never@2895 | 1164 | __ push((int32_t) 0xEEEEEEEE); |
never@2895 | 1165 | __ push((int32_t) (intptr_t) entry_name(ek)); |
never@2895 | 1166 | LP64_ONLY(__ push((int32_t) high((intptr_t) entry_name(ek)))); |
never@2895 | 1167 | __ push((int32_t) 0x33333333); |
never@2895 | 1168 | #endif //ASSERT |
never@2895 | 1169 | |
jrose@1145 | 1170 | address interp_entry = __ pc(); |
jrose@1145 | 1171 | |
jrose@2148 | 1172 | trace_method_handle(_masm, entry_name(ek)); |
jrose@2148 | 1173 | |
never@2950 | 1174 | BLOCK_COMMENT(err_msg("Entry %s {", entry_name(ek))); |
jrose@1145 | 1175 | |
jrose@1145 | 1176 | switch ((int) ek) { |
jrose@1474 | 1177 | case _raise_exception: |
jrose@1145 | 1178 | { |
twisti@2411 | 1179 | // Not a real MH entry, but rather shared code for raising an |
twisti@2603 | 1180 | // exception. Since we use the compiled entry, arguments are |
twisti@2603 | 1181 | // expected in compiler argument registers. |
twisti@2436 | 1182 | assert(raise_exception_method(), "must be set"); |
twisti@2603 | 1183 | assert(raise_exception_method()->from_compiled_entry(), "method must be linked"); |
jrose@1145 | 1184 | |
never@3005 | 1185 | const Register rax_pc = rax; |
never@3005 | 1186 | __ pop(rax_pc); // caller PC |
twisti@2411 | 1187 | __ mov(rsp, saved_last_sp); // cut the stack back to where the caller started |
jrose@1145 | 1188 | |
jrose@1474 | 1189 | Register rbx_method = rbx_temp; |
jrose@1474 | 1190 | __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method)); |
twisti@2411 | 1191 | |
twisti@2411 | 1192 | const int jobject_oop_offset = 0; |
jrose@1474 | 1193 | __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject |
twisti@2411 | 1194 | |
never@3046 | 1195 | __ movptr(saved_last_sp, rsp); |
never@3005 | 1196 | __ subptr(rsp, 3 * wordSize); |
never@3005 | 1197 | __ push(rax_pc); // restore caller PC |
never@3005 | 1198 | |
never@3046 | 1199 | __ movl (__ argument_address(constant(2)), rarg0_code); |
never@3005 | 1200 | __ movptr(__ argument_address(constant(1)), rarg1_actual); |
never@3005 | 1201 | __ movptr(__ argument_address(constant(0)), rarg2_required); |
never@3005 | 1202 | jump_from_method_handle(_masm, rbx_method, rax); |
jrose@1145 | 1203 | } |
jrose@1145 | 1204 | break; |
jrose@1145 | 1205 | |
jrose@1145 | 1206 | case _invokestatic_mh: |
jrose@1145 | 1207 | case _invokespecial_mh: |
jrose@1145 | 1208 | { |
jrose@1145 | 1209 | Register rbx_method = rbx_temp; |
twisti@2201 | 1210 | __ load_heap_oop(rbx_method, rcx_mh_vmtarget); // target is a methodOop |
jrose@1145 | 1211 | __ verify_oop(rbx_method); |
jrose@1145 | 1212 | // same as TemplateTable::invokestatic or invokespecial, |
jrose@1145 | 1213 | // minus the CP setup and profiling: |
jrose@1145 | 1214 | if (ek == _invokespecial_mh) { |
jrose@1145 | 1215 | // Must load & check the first argument before entering the target method. |
jrose@1145 | 1216 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 1217 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 1218 | __ null_check(rcx_recv); |
jrose@1145 | 1219 | __ verify_oop(rcx_recv); |
jrose@1145 | 1220 | } |
never@3005 | 1221 | jump_from_method_handle(_masm, rbx_method, rax); |
jrose@1145 | 1222 | } |
jrose@1145 | 1223 | break; |
jrose@1145 | 1224 | |
jrose@1145 | 1225 | case _invokevirtual_mh: |
jrose@1145 | 1226 | { |
jrose@1145 | 1227 | // same as TemplateTable::invokevirtual, |
jrose@1145 | 1228 | // minus the CP setup and profiling: |
jrose@1145 | 1229 | |
jrose@1145 | 1230 | // pick out the vtable index and receiver offset from the MH, |
jrose@1145 | 1231 | // and then we can discard it: |
jrose@1145 | 1232 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 1233 | Register rbx_index = rbx_temp; |
jrose@1145 | 1234 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 1235 | // Note: The verifier allows us to ignore rcx_mh_vmtarget. |
jrose@1145 | 1236 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 1237 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 1238 | |
jrose@1145 | 1239 | // get receiver klass |
jrose@1145 | 1240 | Register rax_klass = rax_argslot; |
jrose@1145 | 1241 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 1242 | __ verify_oop(rax_klass); |
jrose@1145 | 1243 | |
jrose@1145 | 1244 | // get target methodOop & entry point |
jrose@1145 | 1245 | const int base = instanceKlass::vtable_start_offset() * wordSize; |
jrose@1145 | 1246 | assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); |
jrose@1145 | 1247 | Address vtable_entry_addr(rax_klass, |
jrose@1145 | 1248 | rbx_index, Address::times_ptr, |
jrose@1145 | 1249 | base + vtableEntry::method_offset_in_bytes()); |
jrose@1145 | 1250 | Register rbx_method = rbx_temp; |
twisti@1543 | 1251 | __ movptr(rbx_method, vtable_entry_addr); |
jrose@1145 | 1252 | |
jrose@1145 | 1253 | __ verify_oop(rbx_method); |
never@3005 | 1254 | jump_from_method_handle(_masm, rbx_method, rax); |
jrose@1145 | 1255 | } |
jrose@1145 | 1256 | break; |
jrose@1145 | 1257 | |
jrose@1145 | 1258 | case _invokeinterface_mh: |
jrose@1145 | 1259 | { |
jrose@1145 | 1260 | // same as TemplateTable::invokeinterface, |
jrose@1145 | 1261 | // minus the CP setup and profiling: |
jrose@1145 | 1262 | |
jrose@1145 | 1263 | // pick out the interface and itable index from the MH. |
jrose@1145 | 1264 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 1265 | Register rdx_intf = rdx_temp; |
jrose@1145 | 1266 | Register rbx_index = rbx_temp; |
twisti@2201 | 1267 | __ load_heap_oop(rdx_intf, rcx_mh_vmtarget); |
twisti@2201 | 1268 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 1269 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 1270 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 1271 | |
jrose@1145 | 1272 | // get receiver klass |
jrose@1145 | 1273 | Register rax_klass = rax_argslot; |
jrose@1145 | 1274 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 1275 | __ verify_oop(rax_klass); |
jrose@1145 | 1276 | |
jrose@1145 | 1277 | Register rbx_method = rbx_index; |
jrose@1145 | 1278 | |
jrose@1145 | 1279 | // get interface klass |
jrose@1145 | 1280 | Label no_such_interface; |
jrose@1145 | 1281 | __ verify_oop(rdx_intf); |
jrose@1145 | 1282 | __ lookup_interface_method(rax_klass, rdx_intf, |
jrose@1145 | 1283 | // note: next two args must be the same: |
jrose@1145 | 1284 | rbx_index, rbx_method, |
jrose@1474 | 1285 | rdi_temp, |
jrose@1145 | 1286 | no_such_interface); |
jrose@1145 | 1287 | |
jrose@1145 | 1288 | __ verify_oop(rbx_method); |
never@3005 | 1289 | jump_from_method_handle(_masm, rbx_method, rax); |
jrose@1145 | 1290 | __ hlt(); |
jrose@1145 | 1291 | |
jrose@1145 | 1292 | __ bind(no_such_interface); |
jrose@1145 | 1293 | // Throw an exception. |
jrose@1145 | 1294 | // For historical reasons, it will be IncompatibleClassChangeError. |
twisti@2411 | 1295 | __ mov(rbx_temp, rcx_recv); // rarg2_required might be RCX |
twisti@2411 | 1296 | assert_different_registers(rarg2_required, rbx_temp); |
twisti@2411 | 1297 | __ movptr(rarg2_required, Address(rdx_intf, java_mirror_offset)); // required interface |
twisti@2411 | 1298 | __ mov( rarg1_actual, rbx_temp); // bad receiver |
twisti@2411 | 1299 | __ movl( rarg0_code, (int) Bytecodes::_invokeinterface); // who is complaining? |
jrose@1474 | 1300 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1301 | } |
jrose@1145 | 1302 | break; |
jrose@1145 | 1303 | |
jrose@1145 | 1304 | case _bound_ref_mh: |
jrose@1145 | 1305 | case _bound_int_mh: |
jrose@1145 | 1306 | case _bound_long_mh: |
jrose@1145 | 1307 | case _bound_ref_direct_mh: |
jrose@1145 | 1308 | case _bound_int_direct_mh: |
jrose@1145 | 1309 | case _bound_long_direct_mh: |
jrose@1145 | 1310 | { |
never@2950 | 1311 | const bool direct_to_method = (ek >= _bound_ref_direct_mh); |
never@2895 | 1312 | BasicType arg_type = ek_bound_mh_arg_type(ek); |
never@2895 | 1313 | int arg_slots = type2size[arg_type]; |
jrose@1145 | 1314 | |
jrose@1145 | 1315 | // make room for the new argument: |
jrose@1145 | 1316 | __ movl(rax_argslot, rcx_bmh_vmargslot); |
jrose@1145 | 1317 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
twisti@2565 | 1318 | |
never@2895 | 1319 | insert_arg_slots(_masm, arg_slots * stack_move_unit(), rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1320 | |
jrose@1145 | 1321 | // store bound argument into the new stack slot: |
twisti@2201 | 1322 | __ load_heap_oop(rbx_temp, rcx_bmh_argument); |
jrose@1145 | 1323 | if (arg_type == T_OBJECT) { |
jrose@1145 | 1324 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 1325 | } else { |
twisti@2565 | 1326 | Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type)); |
never@2895 | 1327 | move_typed_arg(_masm, arg_type, false, |
never@2895 | 1328 | Address(rax_argslot, 0), |
never@2895 | 1329 | prim_value_addr, |
never@2895 | 1330 | rbx_temp, rdx_temp); |
jrose@1145 | 1331 | } |
jrose@1145 | 1332 | |
jrose@1145 | 1333 | if (direct_to_method) { |
jrose@1145 | 1334 | Register rbx_method = rbx_temp; |
twisti@2201 | 1335 | __ load_heap_oop(rbx_method, rcx_mh_vmtarget); |
jrose@1145 | 1336 | __ verify_oop(rbx_method); |
never@3005 | 1337 | jump_from_method_handle(_masm, rbx_method, rax); |
jrose@1145 | 1338 | } else { |
twisti@2201 | 1339 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1340 | __ verify_oop(rcx_recv); |
jrose@1145 | 1341 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1342 | } |
jrose@1145 | 1343 | } |
jrose@1145 | 1344 | break; |
jrose@1145 | 1345 | |
jrose@1145 | 1346 | case _adapter_retype_only: |
jrose@1474 | 1347 | case _adapter_retype_raw: |
jrose@1145 | 1348 | // immediately jump to the next MH layer: |
twisti@2201 | 1349 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1350 | __ verify_oop(rcx_recv); |
jrose@1145 | 1351 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1352 | // This is OK when all parameter types widen. |
jrose@1145 | 1353 | // It is also OK when a return type narrows. |
jrose@1145 | 1354 | break; |
jrose@1145 | 1355 | |
jrose@1145 | 1356 | case _adapter_check_cast: |
jrose@1145 | 1357 | { |
jrose@1145 | 1358 | // temps: |
jrose@1145 | 1359 | Register rbx_klass = rbx_temp; // interesting AMH data |
jrose@1145 | 1360 | |
jrose@1145 | 1361 | // check a reference argument before jumping to the next layer of MH: |
jrose@1145 | 1362 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1363 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 1364 | |
jrose@1145 | 1365 | // What class are we casting to? |
twisti@2201 | 1366 | __ load_heap_oop(rbx_klass, rcx_amh_argument); // this is a Class object! |
never@2895 | 1367 | load_klass_from_Class(_masm, rbx_klass); |
jrose@1145 | 1368 | |
jrose@1145 | 1369 | Label done; |
jrose@1145 | 1370 | __ movptr(rdx_temp, vmarg); |
twisti@1712 | 1371 | __ testptr(rdx_temp, rdx_temp); |
twisti@2201 | 1372 | __ jcc(Assembler::zero, done); // no cast if null |
jrose@1145 | 1373 | __ load_klass(rdx_temp, rdx_temp); |
jrose@1145 | 1374 | |
jrose@1145 | 1375 | // live at this point: |
jrose@1145 | 1376 | // - rbx_klass: klass required by the target method |
jrose@1145 | 1377 | // - rdx_temp: argument klass to test |
jrose@1474 | 1378 | // - rcx_recv: adapter method handle |
jrose@1145 | 1379 | __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done); |
jrose@1145 | 1380 | |
jrose@1145 | 1381 | // If we get here, the type check failed! |
jrose@1145 | 1382 | // Call the wrong_method_type stub, passing the failing argument type in rax. |
jrose@1145 | 1383 | Register rax_mtype = rax_argslot; |
jrose@1474 | 1384 | __ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field |
jrose@1474 | 1385 | __ movptr(rdx_temp, vmarg); |
jrose@1474 | 1386 | |
twisti@2411 | 1387 | assert_different_registers(rarg2_required, rdx_temp); |
twisti@2411 | 1388 | __ load_heap_oop(rarg2_required, rcx_amh_argument); // required class |
twisti@2411 | 1389 | __ mov( rarg1_actual, rdx_temp); // bad object |
twisti@2411 | 1390 | __ movl( rarg0_code, (int) Bytecodes::_checkcast); // who is complaining? |
jrose@1474 | 1391 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1392 | |
jrose@1145 | 1393 | __ bind(done); |
jrose@1474 | 1394 | // get the new MH: |
twisti@2201 | 1395 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1396 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1397 | } |
jrose@1145 | 1398 | break; |
jrose@1145 | 1399 | |
jrose@1145 | 1400 | case _adapter_prim_to_prim: |
jrose@1145 | 1401 | case _adapter_ref_to_prim: |
never@2895 | 1402 | case _adapter_prim_to_ref: |
jrose@1145 | 1403 | // handled completely by optimized cases |
jrose@1145 | 1404 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 1405 | break; |
jrose@1145 | 1406 | |
jrose@1145 | 1407 | case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1408 | //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1409 | case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1410 | case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 1411 | { |
jrose@1145 | 1412 | // perform an in-place conversion to int or an int subword |
jrose@1145 | 1413 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1414 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 1415 | |
jrose@1145 | 1416 | switch (ek) { |
jrose@1145 | 1417 | case _adapter_opt_i2i: |
jrose@1145 | 1418 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 1419 | break; |
jrose@1145 | 1420 | case _adapter_opt_l2i: |
jrose@1145 | 1421 | { |
jrose@1145 | 1422 | // just delete the extra slot; on a little-endian machine we keep the first |
jrose@1145 | 1423 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 1424 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 1425 | rax_argslot, rbx_temp, rdx_temp); |
twisti@1861 | 1426 | vmarg = Address(rax_argslot, -Interpreter::stackElementSize); |
jrose@1145 | 1427 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 1428 | } |
jrose@1145 | 1429 | break; |
jrose@1145 | 1430 | case _adapter_opt_unboxi: |
jrose@1145 | 1431 | { |
jrose@1145 | 1432 | // Load the value up from the heap. |
jrose@1145 | 1433 | __ movptr(rdx_temp, vmarg); |
jrose@1145 | 1434 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); |
jrose@1145 | 1435 | #ifdef ASSERT |
jrose@1145 | 1436 | for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
jrose@1145 | 1437 | if (is_subword_type(BasicType(bt))) |
jrose@1145 | 1438 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); |
jrose@1145 | 1439 | } |
jrose@1145 | 1440 | #endif |
jrose@1145 | 1441 | __ null_check(rdx_temp, value_offset); |
jrose@1145 | 1442 | __ movl(rdx_temp, Address(rdx_temp, value_offset)); |
jrose@1145 | 1443 | // We load this as a word. Because we are little-endian, |
jrose@1145 | 1444 | // the low bits will be correct, but the high bits may need cleaning. |
jrose@1145 | 1445 | // The vminfo will guide us to clean those bits. |
jrose@1145 | 1446 | } |
jrose@1145 | 1447 | break; |
jrose@1145 | 1448 | default: |
twisti@1739 | 1449 | ShouldNotReachHere(); |
jrose@1145 | 1450 | } |
jrose@1145 | 1451 | |
twisti@1739 | 1452 | // Do the requested conversion and store the value. |
jrose@1145 | 1453 | Register rbx_vminfo = rbx_temp; |
never@2895 | 1454 | load_conversion_vminfo(_masm, rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 1455 | |
jrose@1145 | 1456 | // get the new MH: |
twisti@2201 | 1457 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1458 | // (now we are done with the old MH) |
jrose@1145 | 1459 | |
jrose@1145 | 1460 | // original 32-bit vmdata word must be of this form: |
twisti@1570 | 1461 | // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | |
twisti@1570 | 1462 | __ xchgptr(rcx, rbx_vminfo); // free rcx for shifts |
jrose@1145 | 1463 | __ shll(rdx_temp /*, rcx*/); |
jrose@1145 | 1464 | Label zero_extend, done; |
jrose@1145 | 1465 | __ testl(rcx, CONV_VMINFO_SIGN_FLAG); |
twisti@1570 | 1466 | __ jccb(Assembler::zero, zero_extend); |
jrose@1145 | 1467 | |
jrose@1145 | 1468 | // this path is taken for int->byte, int->short |
jrose@1145 | 1469 | __ sarl(rdx_temp /*, rcx*/); |
twisti@1570 | 1470 | __ jmpb(done); |
jrose@1145 | 1471 | |
jrose@1145 | 1472 | __ bind(zero_extend); |
jrose@1145 | 1473 | // this is taken for int->char |
jrose@1145 | 1474 | __ shrl(rdx_temp /*, rcx*/); |
jrose@1145 | 1475 | |
jrose@1145 | 1476 | __ bind(done); |
twisti@1739 | 1477 | __ movl(vmarg, rdx_temp); // Store the value. |
twisti@1570 | 1478 | __ xchgptr(rcx, rbx_vminfo); // restore rcx_recv |
jrose@1145 | 1479 | |
jrose@1145 | 1480 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1481 | } |
jrose@1145 | 1482 | break; |
jrose@1145 | 1483 | |
jrose@1145 | 1484 | case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1485 | case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 1486 | { |
jrose@1145 | 1487 | // perform an in-place int-to-long or ref-to-long conversion |
jrose@1145 | 1488 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1489 | |
jrose@1145 | 1490 | // on a little-endian machine we keep the first slot and add another after |
jrose@1145 | 1491 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
never@2895 | 1492 | insert_arg_slots(_masm, stack_move_unit(), |
jrose@1145 | 1493 | rax_argslot, rbx_temp, rdx_temp); |
twisti@1861 | 1494 | Address vmarg1(rax_argslot, -Interpreter::stackElementSize); |
twisti@1861 | 1495 | Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize); |
jrose@1145 | 1496 | |
jrose@1145 | 1497 | switch (ek) { |
jrose@1145 | 1498 | case _adapter_opt_i2l: |
jrose@1145 | 1499 | { |
twisti@1728 | 1500 | #ifdef _LP64 |
twisti@1728 | 1501 | __ movslq(rdx_temp, vmarg1); // Load sign-extended |
twisti@1728 | 1502 | __ movq(vmarg1, rdx_temp); // Store into first slot |
twisti@1728 | 1503 | #else |
jrose@1145 | 1504 | __ movl(rdx_temp, vmarg1); |
twisti@1728 | 1505 | __ sarl(rdx_temp, BitsPerInt - 1); // __ extend_sign() |
jrose@1145 | 1506 | __ movl(vmarg2, rdx_temp); // store second word |
twisti@1728 | 1507 | #endif |
jrose@1145 | 1508 | } |
jrose@1145 | 1509 | break; |
jrose@1145 | 1510 | case _adapter_opt_unboxl: |
jrose@1145 | 1511 | { |
jrose@1145 | 1512 | // Load the value up from the heap. |
jrose@1145 | 1513 | __ movptr(rdx_temp, vmarg1); |
jrose@1145 | 1514 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); |
jrose@1145 | 1515 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); |
jrose@1145 | 1516 | __ null_check(rdx_temp, value_offset); |
twisti@1728 | 1517 | #ifdef _LP64 |
twisti@1728 | 1518 | __ movq(rbx_temp, Address(rdx_temp, value_offset)); |
twisti@1728 | 1519 | __ movq(vmarg1, rbx_temp); |
twisti@1728 | 1520 | #else |
jrose@1145 | 1521 | __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt)); |
jrose@1145 | 1522 | __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt)); |
jrose@1145 | 1523 | __ movl(vmarg1, rbx_temp); |
jrose@1145 | 1524 | __ movl(vmarg2, rdx_temp); |
twisti@1728 | 1525 | #endif |
jrose@1145 | 1526 | } |
jrose@1145 | 1527 | break; |
jrose@1145 | 1528 | default: |
twisti@1739 | 1529 | ShouldNotReachHere(); |
jrose@1145 | 1530 | } |
jrose@1145 | 1531 | |
twisti@2201 | 1532 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1533 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1534 | } |
jrose@1145 | 1535 | break; |
jrose@1145 | 1536 | |
jrose@1145 | 1537 | case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1538 | case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 1539 | { |
jrose@1145 | 1540 | // perform an in-place floating primitive conversion |
jrose@1145 | 1541 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1542 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 1543 | if (ek == _adapter_opt_f2d) { |
never@2895 | 1544 | insert_arg_slots(_masm, stack_move_unit(), |
jrose@1145 | 1545 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1546 | } |
twisti@1861 | 1547 | Address vmarg(rax_argslot, -Interpreter::stackElementSize); |
jrose@1145 | 1548 | |
jrose@1145 | 1549 | #ifdef _LP64 |
jrose@1145 | 1550 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 1551 | __ movflt(xmm0, vmarg); |
jrose@1145 | 1552 | __ cvtss2sd(xmm0, xmm0); |
jrose@1145 | 1553 | __ movdbl(vmarg, xmm0); |
jrose@1145 | 1554 | } else { |
jrose@1145 | 1555 | __ movdbl(xmm0, vmarg); |
jrose@1145 | 1556 | __ cvtsd2ss(xmm0, xmm0); |
jrose@1145 | 1557 | __ movflt(vmarg, xmm0); |
jrose@1145 | 1558 | } |
jrose@1145 | 1559 | #else //_LP64 |
jrose@1145 | 1560 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 1561 | __ fld_s(vmarg); // load float to ST0 |
twisti@2903 | 1562 | __ fstp_d(vmarg); // store double |
twisti@1739 | 1563 | } else { |
jrose@1145 | 1564 | __ fld_d(vmarg); // load double to ST0 |
jrose@1145 | 1565 | __ fstp_s(vmarg); // store single |
jrose@1145 | 1566 | } |
jrose@1145 | 1567 | #endif //_LP64 |
jrose@1145 | 1568 | |
jrose@1145 | 1569 | if (ek == _adapter_opt_d2f) { |
jrose@1145 | 1570 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 1571 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1572 | } |
jrose@1145 | 1573 | |
twisti@2201 | 1574 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1575 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1576 | } |
jrose@1145 | 1577 | break; |
jrose@1145 | 1578 | |
jrose@1145 | 1579 | case _adapter_swap_args: |
jrose@1145 | 1580 | case _adapter_rot_args: |
jrose@1145 | 1581 | // handled completely by optimized cases |
jrose@1145 | 1582 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 1583 | break; |
jrose@1145 | 1584 | |
jrose@1145 | 1585 | case _adapter_opt_swap_1: |
jrose@1145 | 1586 | case _adapter_opt_swap_2: |
jrose@1145 | 1587 | case _adapter_opt_rot_1_up: |
jrose@1145 | 1588 | case _adapter_opt_rot_1_down: |
jrose@1145 | 1589 | case _adapter_opt_rot_2_up: |
jrose@1145 | 1590 | case _adapter_opt_rot_2_down: |
jrose@1145 | 1591 | { |
never@2895 | 1592 | int swap_slots = ek_adapter_opt_swap_slots(ek); |
never@2895 | 1593 | int rotate = ek_adapter_opt_swap_mode(ek); |
jrose@1145 | 1594 | |
jrose@1145 | 1595 | // 'argslot' is the position of the first argument to swap |
jrose@1145 | 1596 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1597 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1598 | |
jrose@1145 | 1599 | // 'vminfo' is the second |
jrose@1145 | 1600 | Register rbx_destslot = rbx_temp; |
never@2895 | 1601 | load_conversion_vminfo(_masm, rbx_destslot, rcx_amh_conversion); |
jrose@1145 | 1602 | __ lea(rbx_destslot, __ argument_address(rbx_destslot)); |
never@2895 | 1603 | if (VerifyMethodHandles) |
never@2895 | 1604 | verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame"); |
jrose@1145 | 1605 | |
never@2895 | 1606 | assert(Interpreter::stackElementSize == wordSize, "else rethink use of wordSize here"); |
jrose@1145 | 1607 | if (!rotate) { |
never@2895 | 1608 | // simple swap |
never@2895 | 1609 | for (int i = 0; i < swap_slots; i++) { |
never@2895 | 1610 | __ movptr(rdi_temp, Address(rax_argslot, i * wordSize)); |
never@2895 | 1611 | __ movptr(rdx_temp, Address(rbx_destslot, i * wordSize)); |
never@2895 | 1612 | __ movptr(Address(rax_argslot, i * wordSize), rdx_temp); |
never@2895 | 1613 | __ movptr(Address(rbx_destslot, i * wordSize), rdi_temp); |
jrose@1145 | 1614 | } |
jrose@1145 | 1615 | } else { |
never@2895 | 1616 | // A rotate is actually pair of moves, with an "odd slot" (or pair) |
never@2895 | 1617 | // changing place with a series of other slots. |
never@2895 | 1618 | // First, push the "odd slot", which is going to get overwritten |
never@2895 | 1619 | for (int i = swap_slots - 1; i >= 0; i--) { |
never@2895 | 1620 | // handle one with rdi_temp instead of a push: |
never@2895 | 1621 | if (i == 0) __ movptr(rdi_temp, Address(rax_argslot, i * wordSize)); |
never@2895 | 1622 | else __ pushptr( Address(rax_argslot, i * wordSize)); |
jrose@1145 | 1623 | } |
jrose@1145 | 1624 | if (rotate > 0) { |
never@2895 | 1625 | // Here is rotate > 0: |
never@2895 | 1626 | // (low mem) (high mem) |
never@2895 | 1627 | // | dest: more_slots... | arg: odd_slot :arg+1 | |
never@2895 | 1628 | // => |
never@2895 | 1629 | // | dest: odd_slot | dest+1: more_slots... :arg+1 | |
jrose@1145 | 1630 | // work argslot down to destslot, copying contiguous data upwards |
jrose@1145 | 1631 | // pseudo-code: |
jrose@1145 | 1632 | // rax = src_addr - swap_bytes |
jrose@1145 | 1633 | // rbx = dest_addr |
jrose@1145 | 1634 | // while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--; |
never@2895 | 1635 | move_arg_slots_up(_masm, |
never@2895 | 1636 | rbx_destslot, |
never@2895 | 1637 | Address(rax_argslot, 0), |
never@2895 | 1638 | swap_slots, |
never@2895 | 1639 | rax_argslot, rdx_temp); |
jrose@1145 | 1640 | } else { |
never@2895 | 1641 | // Here is the other direction, rotate < 0: |
never@2895 | 1642 | // (low mem) (high mem) |
never@2895 | 1643 | // | arg: odd_slot | arg+1: more_slots... :dest+1 | |
never@2895 | 1644 | // => |
never@2895 | 1645 | // | arg: more_slots... | dest: odd_slot :dest+1 | |
jrose@1145 | 1646 | // work argslot up to destslot, copying contiguous data downwards |
jrose@1145 | 1647 | // pseudo-code: |
jrose@1145 | 1648 | // rax = src_addr + swap_bytes |
jrose@1145 | 1649 | // rbx = dest_addr |
jrose@1145 | 1650 | // while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++; |
never@2954 | 1651 | // dest_slot denotes an exclusive upper limit |
never@2954 | 1652 | int limit_bias = OP_ROT_ARGS_DOWN_LIMIT_BIAS; |
never@2954 | 1653 | if (limit_bias != 0) |
never@2954 | 1654 | __ addptr(rbx_destslot, - limit_bias * wordSize); |
never@2895 | 1655 | move_arg_slots_down(_masm, |
never@2895 | 1656 | Address(rax_argslot, swap_slots * wordSize), |
never@2895 | 1657 | rbx_destslot, |
never@2895 | 1658 | -swap_slots, |
never@2895 | 1659 | rax_argslot, rdx_temp); |
never@2954 | 1660 | __ subptr(rbx_destslot, swap_slots * wordSize); |
jrose@1145 | 1661 | } |
jrose@1145 | 1662 | // pop the original first chunk into the destination slot, now free |
never@2895 | 1663 | for (int i = 0; i < swap_slots; i++) { |
never@2895 | 1664 | if (i == 0) __ movptr(Address(rbx_destslot, i * wordSize), rdi_temp); |
never@2895 | 1665 | else __ popptr(Address(rbx_destslot, i * wordSize)); |
jrose@1145 | 1666 | } |
jrose@1145 | 1667 | } |
jrose@1145 | 1668 | |
twisti@2201 | 1669 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1670 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1671 | } |
jrose@1145 | 1672 | break; |
jrose@1145 | 1673 | |
jrose@1145 | 1674 | case _adapter_dup_args: |
jrose@1145 | 1675 | { |
jrose@1145 | 1676 | // 'argslot' is the position of the first argument to duplicate |
jrose@1145 | 1677 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1678 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1679 | |
jrose@1145 | 1680 | // 'stack_move' is negative number of words to duplicate |
never@2895 | 1681 | Register rdi_stack_move = rdi_temp; |
never@2895 | 1682 | load_stack_move(_masm, rdi_stack_move, rcx_recv, true); |
jrose@1145 | 1683 | |
never@2895 | 1684 | if (VerifyMethodHandles) { |
never@2895 | 1685 | verify_argslots(_masm, rdi_stack_move, rax_argslot, true, |
never@2895 | 1686 | "copied argument(s) must fall within current frame"); |
jrose@1145 | 1687 | } |
jrose@1145 | 1688 | |
never@2895 | 1689 | // insert location is always the bottom of the argument list: |
never@2895 | 1690 | Address insert_location = __ argument_address(constant(0)); |
never@2895 | 1691 | int pre_arg_words = insert_location.disp() / wordSize; // return PC is pushed |
never@2895 | 1692 | assert(insert_location.base() == rsp, ""); |
jrose@1145 | 1693 | |
never@2895 | 1694 | __ negl(rdi_stack_move); |
never@2895 | 1695 | push_arg_slots(_masm, rax_argslot, rdi_stack_move, |
never@2895 | 1696 | pre_arg_words, rbx_temp, rdx_temp); |
jrose@1145 | 1697 | |
twisti@2201 | 1698 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1699 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1700 | } |
jrose@1145 | 1701 | break; |
jrose@1145 | 1702 | |
jrose@1145 | 1703 | case _adapter_drop_args: |
jrose@1145 | 1704 | { |
jrose@1145 | 1705 | // 'argslot' is the position of the first argument to nuke |
jrose@1145 | 1706 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1707 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1708 | |
jrose@1145 | 1709 | // (must do previous push after argslot address is taken) |
jrose@1145 | 1710 | |
jrose@1145 | 1711 | // 'stack_move' is number of words to drop |
never@2895 | 1712 | Register rdi_stack_move = rdi_temp; |
never@2895 | 1713 | load_stack_move(_masm, rdi_stack_move, rcx_recv, false); |
jrose@1145 | 1714 | remove_arg_slots(_masm, rdi_stack_move, |
jrose@1145 | 1715 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1716 | |
twisti@2201 | 1717 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1718 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1719 | } |
jrose@1145 | 1720 | break; |
jrose@1145 | 1721 | |
jrose@1145 | 1722 | case _adapter_collect_args: |
never@2895 | 1723 | case _adapter_fold_args: |
jrose@1145 | 1724 | case _adapter_spread_args: |
jrose@1145 | 1725 | // handled completely by optimized cases |
jrose@1145 | 1726 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 1727 | break; |
jrose@1145 | 1728 | |
never@2895 | 1729 | case _adapter_opt_collect_ref: |
never@2895 | 1730 | case _adapter_opt_collect_int: |
never@2895 | 1731 | case _adapter_opt_collect_long: |
never@2895 | 1732 | case _adapter_opt_collect_float: |
never@2895 | 1733 | case _adapter_opt_collect_double: |
never@2895 | 1734 | case _adapter_opt_collect_void: |
never@2895 | 1735 | case _adapter_opt_collect_0_ref: |
never@2895 | 1736 | case _adapter_opt_collect_1_ref: |
never@2895 | 1737 | case _adapter_opt_collect_2_ref: |
never@2895 | 1738 | case _adapter_opt_collect_3_ref: |
never@2895 | 1739 | case _adapter_opt_collect_4_ref: |
never@2895 | 1740 | case _adapter_opt_collect_5_ref: |
never@2895 | 1741 | case _adapter_opt_filter_S0_ref: |
never@2895 | 1742 | case _adapter_opt_filter_S1_ref: |
never@2895 | 1743 | case _adapter_opt_filter_S2_ref: |
never@2895 | 1744 | case _adapter_opt_filter_S3_ref: |
never@2895 | 1745 | case _adapter_opt_filter_S4_ref: |
never@2895 | 1746 | case _adapter_opt_filter_S5_ref: |
never@2895 | 1747 | case _adapter_opt_collect_2_S0_ref: |
never@2895 | 1748 | case _adapter_opt_collect_2_S1_ref: |
never@2895 | 1749 | case _adapter_opt_collect_2_S2_ref: |
never@2895 | 1750 | case _adapter_opt_collect_2_S3_ref: |
never@2895 | 1751 | case _adapter_opt_collect_2_S4_ref: |
never@2895 | 1752 | case _adapter_opt_collect_2_S5_ref: |
never@2895 | 1753 | case _adapter_opt_fold_ref: |
never@2895 | 1754 | case _adapter_opt_fold_int: |
never@2895 | 1755 | case _adapter_opt_fold_long: |
never@2895 | 1756 | case _adapter_opt_fold_float: |
never@2895 | 1757 | case _adapter_opt_fold_double: |
never@2895 | 1758 | case _adapter_opt_fold_void: |
never@2895 | 1759 | case _adapter_opt_fold_1_ref: |
never@2895 | 1760 | case _adapter_opt_fold_2_ref: |
never@2895 | 1761 | case _adapter_opt_fold_3_ref: |
never@2895 | 1762 | case _adapter_opt_fold_4_ref: |
never@2895 | 1763 | case _adapter_opt_fold_5_ref: |
never@2895 | 1764 | { |
never@2895 | 1765 | // Given a fresh incoming stack frame, build a new ricochet frame. |
never@2895 | 1766 | // On entry, TOS points at a return PC, and RBP is the callers frame ptr. |
never@2895 | 1767 | // RSI/R13 has the caller's exact stack pointer, which we must also preserve. |
never@2895 | 1768 | // RCX contains an AdapterMethodHandle of the indicated kind. |
never@2895 | 1769 | |
never@2895 | 1770 | // Relevant AMH fields: |
never@2895 | 1771 | // amh.vmargslot: |
never@2895 | 1772 | // points to the trailing edge of the arguments |
never@2895 | 1773 | // to filter, collect, or fold. For a boxing operation, |
never@2895 | 1774 | // it points just after the single primitive value. |
never@2895 | 1775 | // amh.argument: |
never@2895 | 1776 | // recursively called MH, on |collect| arguments |
never@2895 | 1777 | // amh.vmtarget: |
never@2895 | 1778 | // final destination MH, on return value, etc. |
never@2895 | 1779 | // amh.conversion.dest: |
never@2895 | 1780 | // tells what is the type of the return value |
never@2895 | 1781 | // (not needed here, since dest is also derived from ek) |
never@2895 | 1782 | // amh.conversion.vminfo: |
never@2895 | 1783 | // points to the trailing edge of the return value |
never@2895 | 1784 | // when the vmtarget is to be called; this is |
never@2895 | 1785 | // equal to vmargslot + (retained ? |collect| : 0) |
never@2895 | 1786 | |
never@2895 | 1787 | // Pass 0 or more argument slots to the recursive target. |
never@2895 | 1788 | int collect_count_constant = ek_adapter_opt_collect_count(ek); |
never@2895 | 1789 | |
never@2895 | 1790 | // The collected arguments are copied from the saved argument list: |
never@2895 | 1791 | int collect_slot_constant = ek_adapter_opt_collect_slot(ek); |
never@2895 | 1792 | |
never@2895 | 1793 | assert(ek_orig == _adapter_collect_args || |
never@2895 | 1794 | ek_orig == _adapter_fold_args, ""); |
never@2895 | 1795 | bool retain_original_args = (ek_orig == _adapter_fold_args); |
never@2895 | 1796 | |
never@2895 | 1797 | // The return value is replaced (or inserted) at the 'vminfo' argslot. |
never@2895 | 1798 | // Sometimes we can compute this statically. |
never@2895 | 1799 | int dest_slot_constant = -1; |
never@2895 | 1800 | if (!retain_original_args) |
never@2895 | 1801 | dest_slot_constant = collect_slot_constant; |
never@2895 | 1802 | else if (collect_slot_constant >= 0 && collect_count_constant >= 0) |
never@2895 | 1803 | // We are preserving all the arguments, and the return value is prepended, |
never@2895 | 1804 | // so the return slot is to the left (above) the |collect| sequence. |
never@2895 | 1805 | dest_slot_constant = collect_slot_constant + collect_count_constant; |
never@2895 | 1806 | |
never@2895 | 1807 | // Replace all those slots by the result of the recursive call. |
never@2895 | 1808 | // The result type can be one of ref, int, long, float, double, void. |
never@2895 | 1809 | // In the case of void, nothing is pushed on the stack after return. |
never@2895 | 1810 | BasicType dest = ek_adapter_opt_collect_type(ek); |
never@2895 | 1811 | assert(dest == type2wfield[dest], "dest is a stack slot type"); |
never@2895 | 1812 | int dest_count = type2size[dest]; |
never@2895 | 1813 | assert(dest_count == 1 || dest_count == 2 || (dest_count == 0 && dest == T_VOID), "dest has a size"); |
never@2895 | 1814 | |
never@2895 | 1815 | // Choose a return continuation. |
never@2895 | 1816 | EntryKind ek_ret = _adapter_opt_return_any; |
never@2895 | 1817 | if (dest != T_CONFLICT && OptimizeMethodHandles) { |
never@2895 | 1818 | switch (dest) { |
never@2895 | 1819 | case T_INT : ek_ret = _adapter_opt_return_int; break; |
never@2895 | 1820 | case T_LONG : ek_ret = _adapter_opt_return_long; break; |
never@2895 | 1821 | case T_FLOAT : ek_ret = _adapter_opt_return_float; break; |
never@2895 | 1822 | case T_DOUBLE : ek_ret = _adapter_opt_return_double; break; |
never@2895 | 1823 | case T_OBJECT : ek_ret = _adapter_opt_return_ref; break; |
never@2895 | 1824 | case T_VOID : ek_ret = _adapter_opt_return_void; break; |
never@2895 | 1825 | default : ShouldNotReachHere(); |
never@2895 | 1826 | } |
never@2895 | 1827 | if (dest == T_OBJECT && dest_slot_constant >= 0) { |
never@2895 | 1828 | EntryKind ek_try = EntryKind(_adapter_opt_return_S0_ref + dest_slot_constant); |
never@2895 | 1829 | if (ek_try <= _adapter_opt_return_LAST && |
never@2895 | 1830 | ek_adapter_opt_return_slot(ek_try) == dest_slot_constant) { |
never@2895 | 1831 | ek_ret = ek_try; |
never@2895 | 1832 | } |
never@2895 | 1833 | } |
never@2895 | 1834 | assert(ek_adapter_opt_return_type(ek_ret) == dest, ""); |
never@2895 | 1835 | } |
never@2895 | 1836 | |
never@2895 | 1837 | // Already pushed: ... keep1 | collect | keep2 | sender_pc | |
never@2895 | 1838 | // push(sender_pc); |
never@2895 | 1839 | |
never@2895 | 1840 | // Compute argument base: |
never@2895 | 1841 | Register rax_argv = rax_argslot; |
never@2895 | 1842 | __ lea(rax_argv, __ argument_address(constant(0))); |
never@2895 | 1843 | |
never@2895 | 1844 | // Push a few extra argument words, if we need them to store the return value. |
never@2895 | 1845 | { |
never@2895 | 1846 | int extra_slots = 0; |
never@2895 | 1847 | if (retain_original_args) { |
never@2895 | 1848 | extra_slots = dest_count; |
never@2895 | 1849 | } else if (collect_count_constant == -1) { |
never@2895 | 1850 | extra_slots = dest_count; // collect_count might be zero; be generous |
never@2895 | 1851 | } else if (dest_count > collect_count_constant) { |
never@2895 | 1852 | extra_slots = (dest_count - collect_count_constant); |
never@2895 | 1853 | } else { |
never@2895 | 1854 | // else we know we have enough dead space in |collect| to repurpose for return values |
never@2895 | 1855 | } |
never@2895 | 1856 | DEBUG_ONLY(extra_slots += 1); |
never@2895 | 1857 | if (extra_slots > 0) { |
never@2895 | 1858 | __ pop(rbx_temp); // return value |
never@2895 | 1859 | __ subptr(rsp, (extra_slots * Interpreter::stackElementSize)); |
never@2895 | 1860 | // Push guard word #2 in debug mode. |
never@2895 | 1861 | DEBUG_ONLY(__ movptr(Address(rsp, 0), (int32_t) RicochetFrame::MAGIC_NUMBER_2)); |
never@2895 | 1862 | __ push(rbx_temp); |
never@2895 | 1863 | } |
never@2895 | 1864 | } |
never@2895 | 1865 | |
never@2895 | 1866 | RicochetFrame::enter_ricochet_frame(_masm, rcx_recv, rax_argv, |
never@2895 | 1867 | entry(ek_ret)->from_interpreted_entry(), rbx_temp); |
never@2895 | 1868 | |
never@2895 | 1869 | // Now pushed: ... keep1 | collect | keep2 | RF | |
never@2895 | 1870 | // some handy frame slots: |
never@2895 | 1871 | Address exact_sender_sp_addr = RicochetFrame::frame_address(RicochetFrame::exact_sender_sp_offset_in_bytes()); |
never@2895 | 1872 | Address conversion_addr = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes()); |
never@2895 | 1873 | Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes()); |
never@2895 | 1874 | |
never@2895 | 1875 | #ifdef ASSERT |
never@2895 | 1876 | if (VerifyMethodHandles && dest != T_CONFLICT) { |
never@2895 | 1877 | BLOCK_COMMENT("verify AMH.conv.dest"); |
never@2895 | 1878 | load_conversion_dest_type(_masm, rbx_temp, conversion_addr); |
never@2895 | 1879 | Label L_dest_ok; |
never@2895 | 1880 | __ cmpl(rbx_temp, (int) dest); |
never@2895 | 1881 | __ jcc(Assembler::equal, L_dest_ok); |
never@2895 | 1882 | if (dest == T_INT) { |
never@2895 | 1883 | for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
never@2895 | 1884 | if (is_subword_type(BasicType(bt))) { |
never@2895 | 1885 | __ cmpl(rbx_temp, (int) bt); |
never@2895 | 1886 | __ jcc(Assembler::equal, L_dest_ok); |
never@2895 | 1887 | } |
never@2895 | 1888 | } |
never@2895 | 1889 | } |
never@2895 | 1890 | __ stop("bad dest in AMH.conv"); |
never@2895 | 1891 | __ BIND(L_dest_ok); |
never@2895 | 1892 | } |
never@2895 | 1893 | #endif //ASSERT |
never@2895 | 1894 | |
never@2895 | 1895 | // Find out where the original copy of the recursive argument sequence begins. |
never@2895 | 1896 | Register rax_coll = rax_argv; |
never@2895 | 1897 | { |
never@2895 | 1898 | RegisterOrConstant collect_slot = collect_slot_constant; |
never@2895 | 1899 | if (collect_slot_constant == -1) { |
never@2895 | 1900 | __ movl(rdi_temp, rcx_amh_vmargslot); |
never@2895 | 1901 | collect_slot = rdi_temp; |
never@2895 | 1902 | } |
never@2895 | 1903 | if (collect_slot_constant != 0) |
never@2895 | 1904 | __ lea(rax_coll, Address(rax_argv, collect_slot, Interpreter::stackElementScale())); |
never@2895 | 1905 | // rax_coll now points at the trailing edge of |collect| and leading edge of |keep2| |
never@2895 | 1906 | } |
never@2895 | 1907 | |
never@2895 | 1908 | // Replace the old AMH with the recursive MH. (No going back now.) |
never@2895 | 1909 | // In the case of a boxing call, the recursive call is to a 'boxer' method, |
never@2895 | 1910 | // such as Integer.valueOf or Long.valueOf. In the case of a filter |
never@2895 | 1911 | // or collect call, it will take one or more arguments, transform them, |
never@2895 | 1912 | // and return some result, to store back into argument_base[vminfo]. |
never@2895 | 1913 | __ load_heap_oop(rcx_recv, rcx_amh_argument); |
never@2895 | 1914 | if (VerifyMethodHandles) verify_method_handle(_masm, rcx_recv); |
never@2895 | 1915 | |
never@2895 | 1916 | // Push a space for the recursively called MH first: |
never@2895 | 1917 | __ push((int32_t)NULL_WORD); |
never@2895 | 1918 | |
never@2895 | 1919 | // Calculate |collect|, the number of arguments we are collecting. |
never@2895 | 1920 | Register rdi_collect_count = rdi_temp; |
never@2895 | 1921 | RegisterOrConstant collect_count; |
never@2895 | 1922 | if (collect_count_constant >= 0) { |
never@2895 | 1923 | collect_count = collect_count_constant; |
never@2895 | 1924 | } else { |
never@2895 | 1925 | __ load_method_handle_vmslots(rdi_collect_count, rcx_recv, rdx_temp); |
never@2895 | 1926 | collect_count = rdi_collect_count; |
never@2895 | 1927 | } |
never@2895 | 1928 | #ifdef ASSERT |
never@2895 | 1929 | if (VerifyMethodHandles && collect_count_constant >= 0) { |
never@2895 | 1930 | __ load_method_handle_vmslots(rbx_temp, rcx_recv, rdx_temp); |
never@2895 | 1931 | Label L_count_ok; |
never@2895 | 1932 | __ cmpl(rbx_temp, collect_count_constant); |
never@2895 | 1933 | __ jcc(Assembler::equal, L_count_ok); |
never@2895 | 1934 | __ stop("bad vminfo in AMH.conv"); |
never@2895 | 1935 | __ BIND(L_count_ok); |
never@2895 | 1936 | } |
never@2895 | 1937 | #endif //ASSERT |
never@2895 | 1938 | |
never@2895 | 1939 | // copy |collect| slots directly to TOS: |
never@2895 | 1940 | push_arg_slots(_masm, rax_coll, collect_count, 0, rbx_temp, rdx_temp); |
never@2895 | 1941 | // Now pushed: ... keep1 | collect | keep2 | RF... | collect | |
never@2895 | 1942 | // rax_coll still points at the trailing edge of |collect| and leading edge of |keep2| |
never@2895 | 1943 | |
never@2895 | 1944 | // If necessary, adjust the saved arguments to make room for the eventual return value. |
never@2895 | 1945 | // Normal adjustment: ... keep1 | +dest+ | -collect- | keep2 | RF... | collect | |
never@2895 | 1946 | // If retaining args: ... keep1 | +dest+ | collect | keep2 | RF... | collect | |
never@2895 | 1947 | // In the non-retaining case, this might move keep2 either up or down. |
never@2895 | 1948 | // We don't have to copy the whole | RF... collect | complex, |
never@2895 | 1949 | // but we must adjust RF.saved_args_base. |
never@2950 | 1950 | // Also, from now on, we will forget about the original copy of |collect|. |
never@2895 | 1951 | // If we are retaining it, we will treat it as part of |keep2|. |
never@2895 | 1952 | // For clarity we will define |keep3| = |collect|keep2| or |keep2|. |
never@2895 | 1953 | |
never@2895 | 1954 | BLOCK_COMMENT("adjust trailing arguments {"); |
never@2895 | 1955 | // Compare the sizes of |+dest+| and |-collect-|, which are opposed opening and closing movements. |
never@2895 | 1956 | int open_count = dest_count; |
never@2895 | 1957 | RegisterOrConstant close_count = collect_count_constant; |
never@2895 | 1958 | Register rdi_close_count = rdi_collect_count; |
never@2895 | 1959 | if (retain_original_args) { |
never@2895 | 1960 | close_count = constant(0); |
never@2895 | 1961 | } else if (collect_count_constant == -1) { |
never@2895 | 1962 | close_count = rdi_collect_count; |
never@2895 | 1963 | } |
never@2895 | 1964 | |
never@2895 | 1965 | // How many slots need moving? This is simply dest_slot (0 => no |keep3|). |
never@2895 | 1966 | RegisterOrConstant keep3_count; |
never@2895 | 1967 | Register rsi_keep3_count = rsi; // can repair from RF.exact_sender_sp |
never@2895 | 1968 | if (dest_slot_constant >= 0) { |
never@2895 | 1969 | keep3_count = dest_slot_constant; |
never@2895 | 1970 | } else { |
never@2895 | 1971 | load_conversion_vminfo(_masm, rsi_keep3_count, conversion_addr); |
never@2895 | 1972 | keep3_count = rsi_keep3_count; |
never@2895 | 1973 | } |
never@2895 | 1974 | #ifdef ASSERT |
never@2895 | 1975 | if (VerifyMethodHandles && dest_slot_constant >= 0) { |
never@2895 | 1976 | load_conversion_vminfo(_masm, rbx_temp, conversion_addr); |
never@2895 | 1977 | Label L_vminfo_ok; |
never@2895 | 1978 | __ cmpl(rbx_temp, dest_slot_constant); |
never@2895 | 1979 | __ jcc(Assembler::equal, L_vminfo_ok); |
never@2895 | 1980 | __ stop("bad vminfo in AMH.conv"); |
never@2895 | 1981 | __ BIND(L_vminfo_ok); |
never@2895 | 1982 | } |
never@2895 | 1983 | #endif //ASSERT |
never@2895 | 1984 | |
never@2895 | 1985 | // tasks remaining: |
never@2895 | 1986 | bool move_keep3 = (!keep3_count.is_constant() || keep3_count.as_constant() != 0); |
never@2895 | 1987 | bool stomp_dest = (NOT_DEBUG(dest == T_OBJECT) DEBUG_ONLY(dest_count != 0)); |
never@2895 | 1988 | bool fix_arg_base = (!close_count.is_constant() || open_count != close_count.as_constant()); |
never@2895 | 1989 | |
never@2895 | 1990 | if (stomp_dest | fix_arg_base) { |
never@2895 | 1991 | // we will probably need an updated rax_argv value |
never@2895 | 1992 | if (collect_slot_constant >= 0) { |
never@2895 | 1993 | // rax_coll already holds the leading edge of |keep2|, so tweak it |
never@2895 | 1994 | assert(rax_coll == rax_argv, "elided a move"); |
never@2895 | 1995 | if (collect_slot_constant != 0) |
never@2895 | 1996 | __ subptr(rax_argv, collect_slot_constant * Interpreter::stackElementSize); |
never@2895 | 1997 | } else { |
never@2895 | 1998 | // Just reload from RF.saved_args_base. |
never@2895 | 1999 | __ movptr(rax_argv, saved_args_base_addr); |
never@2895 | 2000 | } |
never@2895 | 2001 | } |
never@2895 | 2002 | |
never@2895 | 2003 | // Old and new argument locations (based at slot 0). |
never@2895 | 2004 | // Net shift (&new_argv - &old_argv) is (close_count - open_count). |
never@2895 | 2005 | bool zero_open_count = (open_count == 0); // remember this bit of info |
never@2895 | 2006 | if (move_keep3 && fix_arg_base) { |
never@2950 | 2007 | // It will be easier to have everything in one register: |
never@2895 | 2008 | if (close_count.is_register()) { |
never@2895 | 2009 | // Deduct open_count from close_count register to get a clean +/- value. |
never@2895 | 2010 | __ subptr(close_count.as_register(), open_count); |
never@2895 | 2011 | } else { |
never@2895 | 2012 | close_count = close_count.as_constant() - open_count; |
never@2895 | 2013 | } |
never@2895 | 2014 | open_count = 0; |
never@2895 | 2015 | } |
never@2895 | 2016 | Address old_argv(rax_argv, 0); |
never@2895 | 2017 | Address new_argv(rax_argv, close_count, Interpreter::stackElementScale(), |
never@2895 | 2018 | - open_count * Interpreter::stackElementSize); |
never@2895 | 2019 | |
never@2895 | 2020 | // First decide if any actual data are to be moved. |
never@2895 | 2021 | // We can skip if (a) |keep3| is empty, or (b) the argument list size didn't change. |
never@2895 | 2022 | // (As it happens, all movements involve an argument list size change.) |
never@2895 | 2023 | |
never@2895 | 2024 | // If there are variable parameters, use dynamic checks to skip around the whole mess. |
never@2895 | 2025 | Label L_done; |
never@2895 | 2026 | if (!keep3_count.is_constant()) { |
never@2895 | 2027 | __ testl(keep3_count.as_register(), keep3_count.as_register()); |
never@2895 | 2028 | __ jcc(Assembler::zero, L_done); |
never@2895 | 2029 | } |
never@2895 | 2030 | if (!close_count.is_constant()) { |
never@2895 | 2031 | __ cmpl(close_count.as_register(), open_count); |
never@2895 | 2032 | __ jcc(Assembler::equal, L_done); |
never@2895 | 2033 | } |
never@2895 | 2034 | |
never@2895 | 2035 | if (move_keep3 && fix_arg_base) { |
never@2895 | 2036 | bool emit_move_down = false, emit_move_up = false, emit_guard = false; |
never@2895 | 2037 | if (!close_count.is_constant()) { |
never@2895 | 2038 | emit_move_down = emit_guard = !zero_open_count; |
never@2895 | 2039 | emit_move_up = true; |
never@2895 | 2040 | } else if (open_count != close_count.as_constant()) { |
never@2895 | 2041 | emit_move_down = (open_count > close_count.as_constant()); |
never@2895 | 2042 | emit_move_up = !emit_move_down; |
never@2895 | 2043 | } |
never@2895 | 2044 | Label L_move_up; |
never@2895 | 2045 | if (emit_guard) { |
never@2895 | 2046 | __ cmpl(close_count.as_register(), open_count); |
never@2895 | 2047 | __ jcc(Assembler::greater, L_move_up); |
never@2895 | 2048 | } |
never@2895 | 2049 | |
never@2895 | 2050 | if (emit_move_down) { |
never@2895 | 2051 | // Move arguments down if |+dest+| > |-collect-| |
never@2895 | 2052 | // (This is rare, except when arguments are retained.) |
never@2895 | 2053 | // This opens space for the return value. |
never@2895 | 2054 | if (keep3_count.is_constant()) { |
never@2895 | 2055 | for (int i = 0; i < keep3_count.as_constant(); i++) { |
never@2895 | 2056 | __ movptr(rdx_temp, old_argv.plus_disp(i * Interpreter::stackElementSize)); |
never@2895 | 2057 | __ movptr( new_argv.plus_disp(i * Interpreter::stackElementSize), rdx_temp); |
never@2895 | 2058 | } |
never@2895 | 2059 | } else { |
never@2895 | 2060 | Register rbx_argv_top = rbx_temp; |
never@2895 | 2061 | __ lea(rbx_argv_top, old_argv.plus_disp(keep3_count, Interpreter::stackElementScale())); |
never@2895 | 2062 | move_arg_slots_down(_masm, |
never@2895 | 2063 | old_argv, // beginning of old argv |
never@2895 | 2064 | rbx_argv_top, // end of old argv |
never@2895 | 2065 | close_count, // distance to move down (must be negative) |
never@2895 | 2066 | rax_argv, rdx_temp); |
never@2895 | 2067 | // Used argv as an iteration variable; reload from RF.saved_args_base. |
never@2895 | 2068 | __ movptr(rax_argv, saved_args_base_addr); |
never@2895 | 2069 | } |
never@2895 | 2070 | } |
never@2895 | 2071 | |
never@2895 | 2072 | if (emit_guard) { |
never@2895 | 2073 | __ jmp(L_done); // assumes emit_move_up is true also |
never@2895 | 2074 | __ BIND(L_move_up); |
never@2895 | 2075 | } |
never@2895 | 2076 | |
never@2895 | 2077 | if (emit_move_up) { |
never@2895 | 2078 | |
never@2895 | 2079 | // Move arguments up if |+dest+| < |-collect-| |
never@2895 | 2080 | // (This is usual, except when |keep3| is empty.) |
never@2895 | 2081 | // This closes up the space occupied by the now-deleted collect values. |
never@2895 | 2082 | if (keep3_count.is_constant()) { |
never@2895 | 2083 | for (int i = keep3_count.as_constant() - 1; i >= 0; i--) { |
never@2895 | 2084 | __ movptr(rdx_temp, old_argv.plus_disp(i * Interpreter::stackElementSize)); |
never@2895 | 2085 | __ movptr( new_argv.plus_disp(i * Interpreter::stackElementSize), rdx_temp); |
never@2895 | 2086 | } |
never@2895 | 2087 | } else { |
never@2895 | 2088 | Address argv_top = old_argv.plus_disp(keep3_count, Interpreter::stackElementScale()); |
never@2895 | 2089 | move_arg_slots_up(_masm, |
never@2895 | 2090 | rax_argv, // beginning of old argv |
never@2895 | 2091 | argv_top, // end of old argv |
never@2895 | 2092 | close_count, // distance to move up (must be positive) |
never@2895 | 2093 | rbx_temp, rdx_temp); |
never@2895 | 2094 | } |
never@2895 | 2095 | } |
never@2895 | 2096 | } |
never@2895 | 2097 | __ BIND(L_done); |
never@2895 | 2098 | |
never@2895 | 2099 | if (fix_arg_base) { |
never@2895 | 2100 | // adjust RF.saved_args_base by adding (close_count - open_count) |
never@2895 | 2101 | if (!new_argv.is_same_address(Address(rax_argv, 0))) |
never@2895 | 2102 | __ lea(rax_argv, new_argv); |
never@2895 | 2103 | __ movptr(saved_args_base_addr, rax_argv); |
never@2895 | 2104 | } |
never@2895 | 2105 | |
never@2895 | 2106 | if (stomp_dest) { |
never@2895 | 2107 | // Stomp the return slot, so it doesn't hold garbage. |
never@2895 | 2108 | // This isn't strictly necessary, but it may help detect bugs. |
never@2895 | 2109 | int forty_two = RicochetFrame::RETURN_VALUE_PLACEHOLDER; |
never@2895 | 2110 | __ movptr(Address(rax_argv, keep3_count, Address::times_ptr), |
never@2895 | 2111 | (int32_t) forty_two); |
never@2895 | 2112 | // uses rsi_keep3_count |
never@2895 | 2113 | } |
never@2895 | 2114 | BLOCK_COMMENT("} adjust trailing arguments"); |
never@2895 | 2115 | |
never@2895 | 2116 | BLOCK_COMMENT("do_recursive_call"); |
never@2895 | 2117 | __ mov(saved_last_sp, rsp); // set rsi/r13 for callee |
never@2895 | 2118 | __ pushptr(ExternalAddress(SharedRuntime::ricochet_blob()->bounce_addr()).addr()); |
never@2895 | 2119 | // The globally unique bounce address has two purposes: |
never@2895 | 2120 | // 1. It helps the JVM recognize this frame (frame::is_ricochet_frame). |
never@2895 | 2121 | // 2. When returned to, it cuts back the stack and redirects control flow |
never@2895 | 2122 | // to the return handler. |
never@2895 | 2123 | // The return handler will further cut back the stack when it takes |
never@2895 | 2124 | // down the RF. Perhaps there is a way to streamline this further. |
never@2895 | 2125 | |
never@2895 | 2126 | // State during recursive call: |
never@2895 | 2127 | // ... keep1 | dest | dest=42 | keep3 | RF... | collect | bounce_pc | |
never@2895 | 2128 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
never@2895 | 2129 | |
never@2895 | 2130 | break; |
never@2895 | 2131 | } |
never@2895 | 2132 | |
never@2895 | 2133 | case _adapter_opt_return_ref: |
never@2895 | 2134 | case _adapter_opt_return_int: |
never@2895 | 2135 | case _adapter_opt_return_long: |
never@2895 | 2136 | case _adapter_opt_return_float: |
never@2895 | 2137 | case _adapter_opt_return_double: |
never@2895 | 2138 | case _adapter_opt_return_void: |
never@2895 | 2139 | case _adapter_opt_return_S0_ref: |
never@2895 | 2140 | case _adapter_opt_return_S1_ref: |
never@2895 | 2141 | case _adapter_opt_return_S2_ref: |
never@2895 | 2142 | case _adapter_opt_return_S3_ref: |
never@2895 | 2143 | case _adapter_opt_return_S4_ref: |
never@2895 | 2144 | case _adapter_opt_return_S5_ref: |
never@2895 | 2145 | { |
never@2895 | 2146 | BasicType dest_type_constant = ek_adapter_opt_return_type(ek); |
never@2895 | 2147 | int dest_slot_constant = ek_adapter_opt_return_slot(ek); |
never@2895 | 2148 | |
never@2895 | 2149 | if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
never@2895 | 2150 | |
never@2895 | 2151 | if (dest_slot_constant == -1) { |
never@2895 | 2152 | // The current stub is a general handler for this dest_type. |
never@2895 | 2153 | // It can be called from _adapter_opt_return_any below. |
never@2895 | 2154 | // Stash the address in a little table. |
never@2895 | 2155 | assert((dest_type_constant & CONV_TYPE_MASK) == dest_type_constant, "oob"); |
never@2895 | 2156 | address return_handler = __ pc(); |
never@2895 | 2157 | _adapter_return_handlers[dest_type_constant] = return_handler; |
never@2895 | 2158 | if (dest_type_constant == T_INT) { |
never@2895 | 2159 | // do the subword types too |
never@2895 | 2160 | for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
never@2895 | 2161 | if (is_subword_type(BasicType(bt)) && |
never@2895 | 2162 | _adapter_return_handlers[bt] == NULL) { |
never@2895 | 2163 | _adapter_return_handlers[bt] = return_handler; |
never@2895 | 2164 | } |
never@2895 | 2165 | } |
never@2895 | 2166 | } |
never@2895 | 2167 | } |
never@2895 | 2168 | |
never@2895 | 2169 | Register rbx_arg_base = rbx_temp; |
never@2895 | 2170 | assert_different_registers(rax, rdx, // possibly live return value registers |
never@2895 | 2171 | rdi_temp, rbx_arg_base); |
never@2895 | 2172 | |
never@2895 | 2173 | Address conversion_addr = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes()); |
never@2895 | 2174 | Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes()); |
never@2895 | 2175 | |
never@2895 | 2176 | __ movptr(rbx_arg_base, saved_args_base_addr); |
never@2895 | 2177 | RegisterOrConstant dest_slot = dest_slot_constant; |
never@2895 | 2178 | if (dest_slot_constant == -1) { |
never@2895 | 2179 | load_conversion_vminfo(_masm, rdi_temp, conversion_addr); |
never@2895 | 2180 | dest_slot = rdi_temp; |
never@2895 | 2181 | } |
never@2895 | 2182 | // Store the result back into the argslot. |
never@2895 | 2183 | // This code uses the interpreter calling sequence, in which the return value |
never@2895 | 2184 | // is usually left in the TOS register, as defined by InterpreterMacroAssembler::pop. |
never@2895 | 2185 | // There are certain irregularities with floating point values, which can be seen |
never@2895 | 2186 | // in TemplateInterpreterGenerator::generate_return_entry_for. |
never@2895 | 2187 | move_return_value(_masm, dest_type_constant, Address(rbx_arg_base, dest_slot, Interpreter::stackElementScale())); |
never@2895 | 2188 | |
never@2895 | 2189 | RicochetFrame::leave_ricochet_frame(_masm, rcx_recv, rbx_arg_base, rdx_temp); |
never@2895 | 2190 | __ push(rdx_temp); // repush the return PC |
never@2895 | 2191 | |
never@2895 | 2192 | // Load the final target and go. |
never@2895 | 2193 | if (VerifyMethodHandles) verify_method_handle(_masm, rcx_recv); |
never@2895 | 2194 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
never@2895 | 2195 | __ hlt(); // -------------------- |
never@2895 | 2196 | break; |
never@2895 | 2197 | } |
never@2895 | 2198 | |
never@2895 | 2199 | case _adapter_opt_return_any: |
never@2895 | 2200 | { |
never@2895 | 2201 | if (VerifyMethodHandles) RicochetFrame::verify_clean(_masm); |
never@2895 | 2202 | Register rdi_conv = rdi_temp; |
never@2895 | 2203 | assert_different_registers(rax, rdx, // possibly live return value registers |
never@2895 | 2204 | rdi_conv, rbx_temp); |
never@2895 | 2205 | |
never@2895 | 2206 | Address conversion_addr = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes()); |
never@2895 | 2207 | load_conversion_dest_type(_masm, rdi_conv, conversion_addr); |
never@2895 | 2208 | __ lea(rbx_temp, ExternalAddress((address) &_adapter_return_handlers[0])); |
never@2895 | 2209 | __ movptr(rbx_temp, Address(rbx_temp, rdi_conv, Address::times_ptr)); |
never@2895 | 2210 | |
never@2895 | 2211 | #ifdef ASSERT |
never@2895 | 2212 | { Label L_badconv; |
never@2895 | 2213 | __ testptr(rbx_temp, rbx_temp); |
never@2895 | 2214 | __ jccb(Assembler::zero, L_badconv); |
never@2895 | 2215 | __ jmp(rbx_temp); |
never@2895 | 2216 | __ bind(L_badconv); |
never@2895 | 2217 | __ stop("bad method handle return"); |
never@2895 | 2218 | } |
never@2895 | 2219 | #else //ASSERT |
never@2895 | 2220 | __ jmp(rbx_temp); |
never@2895 | 2221 | #endif //ASSERT |
never@2895 | 2222 | break; |
never@2895 | 2223 | } |
never@2895 | 2224 | |
jrose@1145 | 2225 | case _adapter_opt_spread_0: |
never@2895 | 2226 | case _adapter_opt_spread_1_ref: |
never@2895 | 2227 | case _adapter_opt_spread_2_ref: |
never@2895 | 2228 | case _adapter_opt_spread_3_ref: |
never@2895 | 2229 | case _adapter_opt_spread_4_ref: |
never@2895 | 2230 | case _adapter_opt_spread_5_ref: |
never@2895 | 2231 | case _adapter_opt_spread_ref: |
never@2895 | 2232 | case _adapter_opt_spread_byte: |
never@2895 | 2233 | case _adapter_opt_spread_char: |
never@2895 | 2234 | case _adapter_opt_spread_short: |
never@2895 | 2235 | case _adapter_opt_spread_int: |
never@2895 | 2236 | case _adapter_opt_spread_long: |
never@2895 | 2237 | case _adapter_opt_spread_float: |
never@2895 | 2238 | case _adapter_opt_spread_double: |
jrose@1145 | 2239 | { |
jrose@1145 | 2240 | // spread an array out into a group of arguments |
never@2895 | 2241 | int length_constant = ek_adapter_opt_spread_count(ek); |
never@2895 | 2242 | bool length_can_be_zero = (length_constant == 0); |
never@2895 | 2243 | if (length_constant < 0) { |
never@2895 | 2244 | // some adapters with variable length must handle the zero case |
never@2895 | 2245 | if (!OptimizeMethodHandles || |
never@2895 | 2246 | ek_adapter_opt_spread_type(ek) != T_OBJECT) |
never@2895 | 2247 | length_can_be_zero = true; |
never@2895 | 2248 | } |
jrose@1145 | 2249 | |
jrose@1145 | 2250 | // find the address of the array argument |
jrose@1145 | 2251 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 2252 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 2253 | |
never@2895 | 2254 | // grab another temp |
never@2895 | 2255 | Register rsi_temp = rsi; |
never@2895 | 2256 | { if (rsi_temp == saved_last_sp) __ push(saved_last_sp); } |
never@2895 | 2257 | // (preceding push must be done after argslot address is taken!) |
never@2895 | 2258 | #define UNPUSH_RSI \ |
never@2895 | 2259 | { if (rsi_temp == saved_last_sp) __ pop(saved_last_sp); } |
jrose@1145 | 2260 | |
jrose@1145 | 2261 | // arx_argslot points both to the array and to the first output arg |
jrose@1145 | 2262 | vmarg = Address(rax_argslot, 0); |
jrose@1145 | 2263 | |
jrose@1145 | 2264 | // Get the array value. |
never@2895 | 2265 | Register rsi_array = rsi_temp; |
jrose@1145 | 2266 | Register rdx_array_klass = rdx_temp; |
never@2895 | 2267 | BasicType elem_type = ek_adapter_opt_spread_type(ek); |
never@2895 | 2268 | int elem_slots = type2size[elem_type]; // 1 or 2 |
never@2895 | 2269 | int array_slots = 1; // array is always a T_OBJECT |
jrose@1145 | 2270 | int length_offset = arrayOopDesc::length_offset_in_bytes(); |
jrose@1145 | 2271 | int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); |
jrose@1145 | 2272 | __ movptr(rsi_array, vmarg); |
never@2895 | 2273 | |
never@2895 | 2274 | Label L_array_is_empty, L_insert_arg_space, L_copy_args, L_args_done; |
never@2895 | 2275 | if (length_can_be_zero) { |
never@2895 | 2276 | // handle the null pointer case, if zero is allowed |
never@2895 | 2277 | Label L_skip; |
never@2895 | 2278 | if (length_constant < 0) { |
never@2895 | 2279 | load_conversion_vminfo(_masm, rbx_temp, rcx_amh_conversion); |
never@2895 | 2280 | __ testl(rbx_temp, rbx_temp); |
never@2895 | 2281 | __ jcc(Assembler::notZero, L_skip); |
never@2895 | 2282 | } |
jrose@1145 | 2283 | __ testptr(rsi_array, rsi_array); |
never@2895 | 2284 | __ jcc(Assembler::zero, L_array_is_empty); |
never@2895 | 2285 | __ bind(L_skip); |
jrose@1145 | 2286 | } |
jrose@1145 | 2287 | __ null_check(rsi_array, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 2288 | __ load_klass(rdx_array_klass, rsi_array); |
jrose@1145 | 2289 | |
jrose@1145 | 2290 | // Check the array type. |
jrose@1145 | 2291 | Register rbx_klass = rbx_temp; |
twisti@2201 | 2292 | __ load_heap_oop(rbx_klass, rcx_amh_argument); // this is a Class object! |
never@2895 | 2293 | load_klass_from_Class(_masm, rbx_klass); |
jrose@1145 | 2294 | |
jrose@1145 | 2295 | Label ok_array_klass, bad_array_klass, bad_array_length; |
never@2895 | 2296 | __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi_temp, ok_array_klass); |
jrose@1145 | 2297 | // If we get here, the type check failed! |
jrose@1145 | 2298 | __ jmp(bad_array_klass); |
never@2895 | 2299 | __ BIND(ok_array_klass); |
jrose@1145 | 2300 | |
jrose@1145 | 2301 | // Check length. |
jrose@1145 | 2302 | if (length_constant >= 0) { |
jrose@1145 | 2303 | __ cmpl(Address(rsi_array, length_offset), length_constant); |
jrose@1145 | 2304 | } else { |
jrose@1145 | 2305 | Register rbx_vminfo = rbx_temp; |
never@2895 | 2306 | load_conversion_vminfo(_masm, rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 2307 | __ cmpl(rbx_vminfo, Address(rsi_array, length_offset)); |
jrose@1145 | 2308 | } |
jrose@1145 | 2309 | __ jcc(Assembler::notEqual, bad_array_length); |
jrose@1145 | 2310 | |
jrose@1145 | 2311 | Register rdx_argslot_limit = rdx_temp; |
jrose@1145 | 2312 | |
jrose@1145 | 2313 | // Array length checks out. Now insert any required stack slots. |
jrose@1145 | 2314 | if (length_constant == -1) { |
jrose@1145 | 2315 | // Form a pointer to the end of the affected region. |
twisti@1861 | 2316 | __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize)); |
jrose@1145 | 2317 | // 'stack_move' is negative number of words to insert |
never@2895 | 2318 | // This number already accounts for elem_slots. |
never@2895 | 2319 | Register rdi_stack_move = rdi_temp; |
never@2895 | 2320 | load_stack_move(_masm, rdi_stack_move, rcx_recv, true); |
never@2895 | 2321 | __ cmpptr(rdi_stack_move, 0); |
never@2895 | 2322 | assert(stack_move_unit() < 0, "else change this comparison"); |
never@2895 | 2323 | __ jcc(Assembler::less, L_insert_arg_space); |
never@2895 | 2324 | __ jcc(Assembler::equal, L_copy_args); |
never@2895 | 2325 | // single argument case, with no array movement |
never@2895 | 2326 | __ BIND(L_array_is_empty); |
never@2895 | 2327 | remove_arg_slots(_masm, -stack_move_unit() * array_slots, |
never@2895 | 2328 | rax_argslot, rbx_temp, rdx_temp); |
never@2895 | 2329 | __ jmp(L_args_done); // no spreading to do |
never@2895 | 2330 | __ BIND(L_insert_arg_space); |
never@2895 | 2331 | // come here in the usual case, stack_move < 0 (2 or more spread arguments) |
jrose@1145 | 2332 | Register rsi_temp = rsi_array; // spill this |
never@2895 | 2333 | insert_arg_slots(_masm, rdi_stack_move, |
jrose@1145 | 2334 | rax_argslot, rbx_temp, rsi_temp); |
never@2895 | 2335 | // reload the array since rsi was killed |
never@2895 | 2336 | // reload from rdx_argslot_limit since rax_argslot is now decremented |
never@2895 | 2337 | __ movptr(rsi_array, Address(rdx_argslot_limit, -Interpreter::stackElementSize)); |
never@2895 | 2338 | } else if (length_constant >= 1) { |
never@2895 | 2339 | int new_slots = (length_constant * elem_slots) - array_slots; |
never@2895 | 2340 | insert_arg_slots(_masm, new_slots * stack_move_unit(), |
jrose@1145 | 2341 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 2342 | } else if (length_constant == 0) { |
never@2895 | 2343 | __ BIND(L_array_is_empty); |
never@2895 | 2344 | remove_arg_slots(_masm, -stack_move_unit() * array_slots, |
jrose@1145 | 2345 | rax_argslot, rbx_temp, rdx_temp); |
never@2895 | 2346 | } else { |
never@2895 | 2347 | ShouldNotReachHere(); |
jrose@1145 | 2348 | } |
jrose@1145 | 2349 | |
jrose@1145 | 2350 | // Copy from the array to the new slots. |
jrose@1145 | 2351 | // Note: Stack change code preserves integrity of rax_argslot pointer. |
jrose@1145 | 2352 | // So even after slot insertions, rax_argslot still points to first argument. |
never@2895 | 2353 | // Beware: Arguments that are shallow on the stack are deep in the array, |
never@2895 | 2354 | // and vice versa. So a downward-growing stack (the usual) has to be copied |
never@2895 | 2355 | // elementwise in reverse order from the source array. |
never@2895 | 2356 | __ BIND(L_copy_args); |
jrose@1145 | 2357 | if (length_constant == -1) { |
jrose@1145 | 2358 | // [rax_argslot, rdx_argslot_limit) is the area we are inserting into. |
never@2895 | 2359 | // Array element [0] goes at rdx_argslot_limit[-wordSize]. |
jrose@1145 | 2360 | Register rsi_source = rsi_array; |
jrose@1145 | 2361 | __ lea(rsi_source, Address(rsi_array, elem0_offset)); |
never@2895 | 2362 | Register rdx_fill_ptr = rdx_argslot_limit; |
jrose@1145 | 2363 | Label loop; |
never@2895 | 2364 | __ BIND(loop); |
never@2895 | 2365 | __ addptr(rdx_fill_ptr, -Interpreter::stackElementSize * elem_slots); |
never@2895 | 2366 | move_typed_arg(_masm, elem_type, true, |
never@2895 | 2367 | Address(rdx_fill_ptr, 0), Address(rsi_source, 0), |
never@2895 | 2368 | rbx_temp, rdi_temp); |
jrose@1145 | 2369 | __ addptr(rsi_source, type2aelembytes(elem_type)); |
never@2895 | 2370 | __ cmpptr(rdx_fill_ptr, rax_argslot); |
twisti@2903 | 2371 | __ jcc(Assembler::above, loop); |
jrose@1145 | 2372 | } else if (length_constant == 0) { |
jrose@1145 | 2373 | // nothing to copy |
jrose@1145 | 2374 | } else { |
jrose@1145 | 2375 | int elem_offset = elem0_offset; |
never@2895 | 2376 | int slot_offset = length_constant * Interpreter::stackElementSize; |
jrose@1145 | 2377 | for (int index = 0; index < length_constant; index++) { |
never@2895 | 2378 | slot_offset -= Interpreter::stackElementSize * elem_slots; // fill backward |
never@2895 | 2379 | move_typed_arg(_masm, elem_type, true, |
never@2895 | 2380 | Address(rax_argslot, slot_offset), Address(rsi_array, elem_offset), |
never@2895 | 2381 | rbx_temp, rdi_temp); |
jrose@1145 | 2382 | elem_offset += type2aelembytes(elem_type); |
jrose@1145 | 2383 | } |
jrose@1145 | 2384 | } |
never@2895 | 2385 | __ BIND(L_args_done); |
jrose@1145 | 2386 | |
jrose@1145 | 2387 | // Arguments are spread. Move to next method handle. |
never@2895 | 2388 | UNPUSH_RSI; |
twisti@2201 | 2389 | __ load_heap_oop(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 2390 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 2391 | |
jrose@1145 | 2392 | __ bind(bad_array_klass); |
never@2895 | 2393 | UNPUSH_RSI; |
twisti@2411 | 2394 | assert(!vmarg.uses(rarg2_required), "must be different registers"); |
never@2895 | 2395 | __ load_heap_oop( rarg2_required, Address(rdx_array_klass, java_mirror_offset)); // required type |
never@2895 | 2396 | __ movptr( rarg1_actual, vmarg); // bad array |
never@2895 | 2397 | __ movl( rarg0_code, (int) Bytecodes::_aaload); // who is complaining? |
jrose@1474 | 2398 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 2399 | |
jrose@1145 | 2400 | __ bind(bad_array_length); |
never@2895 | 2401 | UNPUSH_RSI; |
twisti@2411 | 2402 | assert(!vmarg.uses(rarg2_required), "must be different registers"); |
never@2895 | 2403 | __ mov( rarg2_required, rcx_recv); // AMH requiring a certain length |
never@2895 | 2404 | __ movptr( rarg1_actual, vmarg); // bad array |
never@2895 | 2405 | __ movl( rarg0_code, (int) Bytecodes::_arraylength); // who is complaining? |
jrose@1474 | 2406 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
never@2895 | 2407 | #undef UNPUSH_RSI |
jrose@1145 | 2408 | |
never@2895 | 2409 | break; |
jrose@1145 | 2410 | } |
jrose@1145 | 2411 | |
never@2895 | 2412 | default: |
never@2895 | 2413 | // do not require all platforms to recognize all adapter types |
never@2895 | 2414 | __ nop(); |
never@2895 | 2415 | return; |
jrose@1145 | 2416 | } |
never@2950 | 2417 | BLOCK_COMMENT(err_msg("} Entry %s", entry_name(ek))); |
jrose@1145 | 2418 | __ hlt(); |
jrose@1145 | 2419 | |
jrose@1145 | 2420 | address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); |
jrose@1145 | 2421 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 2422 | |
jrose@1145 | 2423 | init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); |
jrose@1145 | 2424 | } |