Fri, 24 Sep 2010 03:51:43 -0700
6986944: JSR 292 assert(caller_nm->is_method_handle_return(caller_frame.pc())) failed: must be MH call site
Reviewed-by: never, kvn
jrose@1145 | 1 | /* |
trims@1907 | 2 | * Copyright (c) 1997, 2010, 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 | |
jrose@1145 | 25 | #include "incls/_precompiled.incl" |
jrose@1145 | 26 | #include "incls/_methodHandles_x86.cpp.incl" |
jrose@1145 | 27 | |
jrose@1145 | 28 | #define __ _masm-> |
jrose@1145 | 29 | |
jrose@2148 | 30 | #ifdef PRODUCT |
jrose@2148 | 31 | #define BLOCK_COMMENT(str) /* nothing */ |
jrose@2148 | 32 | #else |
jrose@2148 | 33 | #define BLOCK_COMMENT(str) __ block_comment(str) |
jrose@2148 | 34 | #endif |
jrose@2148 | 35 | |
jrose@2148 | 36 | #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
jrose@2148 | 37 | |
jrose@1145 | 38 | address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 39 | address interpreted_entry) { |
jrose@1145 | 40 | // Just before the actual machine code entry point, allocate space |
jrose@1145 | 41 | // for a MethodHandleEntry::Data record, so that we can manage everything |
jrose@1145 | 42 | // from one base pointer. |
jrose@1145 | 43 | __ align(wordSize); |
jrose@1145 | 44 | address target = __ pc() + sizeof(Data); |
jrose@1145 | 45 | while (__ pc() < target) { |
jrose@1145 | 46 | __ nop(); |
jrose@1145 | 47 | __ align(wordSize); |
jrose@1145 | 48 | } |
jrose@1145 | 49 | |
jrose@1145 | 50 | MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); |
jrose@1145 | 51 | me->set_end_address(__ pc()); // set a temporary end_address |
jrose@1145 | 52 | me->set_from_interpreted_entry(interpreted_entry); |
jrose@1145 | 53 | me->set_type_checking_entry(NULL); |
jrose@1145 | 54 | |
jrose@1145 | 55 | return (address) me; |
jrose@1145 | 56 | } |
jrose@1145 | 57 | |
jrose@1145 | 58 | MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, |
jrose@1145 | 59 | address start_addr) { |
jrose@1145 | 60 | MethodHandleEntry* me = (MethodHandleEntry*) start_addr; |
jrose@1145 | 61 | assert(me->end_address() == start_addr, "valid ME"); |
jrose@1145 | 62 | |
jrose@1145 | 63 | // Fill in the real end_address: |
jrose@1145 | 64 | __ align(wordSize); |
jrose@1145 | 65 | me->set_end_address(__ pc()); |
jrose@1145 | 66 | |
jrose@1145 | 67 | return me; |
jrose@1145 | 68 | } |
jrose@1145 | 69 | |
jrose@1145 | 70 | #ifdef ASSERT |
twisti@1739 | 71 | static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, |
jrose@1145 | 72 | const char* error_message) { |
jrose@1145 | 73 | // Verify that argslot lies within (rsp, rbp]. |
jrose@1145 | 74 | Label L_ok, L_bad; |
jrose@2148 | 75 | BLOCK_COMMENT("{ verify_argslot"); |
twisti@1739 | 76 | __ cmpptr(argslot_reg, rbp); |
twisti@1570 | 77 | __ jccb(Assembler::above, L_bad); |
twisti@1739 | 78 | __ cmpptr(rsp, argslot_reg); |
twisti@1570 | 79 | __ jccb(Assembler::below, L_ok); |
jrose@1145 | 80 | __ bind(L_bad); |
jrose@1145 | 81 | __ stop(error_message); |
jrose@1145 | 82 | __ bind(L_ok); |
jrose@2148 | 83 | BLOCK_COMMENT("} verify_argslot"); |
jrose@1145 | 84 | } |
jrose@1145 | 85 | #endif |
jrose@1145 | 86 | |
jrose@1145 | 87 | |
jrose@1145 | 88 | // Code generation |
jrose@1145 | 89 | address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { |
jrose@1145 | 90 | // rbx: methodOop |
jrose@1145 | 91 | // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
jrose@1145 | 92 | // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@2148 | 93 | // rdx, rdi: garbage temp, blown away |
jrose@1145 | 94 | |
jrose@1145 | 95 | Register rbx_method = rbx; |
jrose@1145 | 96 | Register rcx_recv = rcx; |
jrose@1145 | 97 | Register rax_mtype = rax; |
jrose@1145 | 98 | Register rdx_temp = rdx; |
jrose@2148 | 99 | Register rdi_temp = rdi; |
jrose@1145 | 100 | |
jrose@1145 | 101 | // emit WrongMethodType path first, to enable jccb back-branch from main path |
jrose@1145 | 102 | Label wrong_method_type; |
jrose@1145 | 103 | __ bind(wrong_method_type); |
jrose@2148 | 104 | Label invoke_generic_slow_path; |
jrose@2148 | 105 | assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
jrose@2148 | 106 | __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeExact); |
jrose@2148 | 107 | __ jcc(Assembler::notEqual, invoke_generic_slow_path); |
jrose@1145 | 108 | __ push(rax_mtype); // required mtype |
jrose@1145 | 109 | __ push(rcx_recv); // bad mh (1st stacked argument) |
jrose@1145 | 110 | __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
jrose@1145 | 111 | |
jrose@1145 | 112 | // here's where control starts out: |
jrose@1145 | 113 | __ align(CodeEntryAlignment); |
jrose@1145 | 114 | address entry_point = __ pc(); |
jrose@1145 | 115 | |
jrose@1145 | 116 | // fetch the MethodType from the method handle into rax (the 'check' register) |
jrose@1145 | 117 | { |
jrose@1145 | 118 | Register tem = rbx_method; |
jrose@1145 | 119 | for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { |
jrose@1145 | 120 | __ movptr(rax_mtype, Address(tem, *pchase)); |
jrose@1145 | 121 | tem = rax_mtype; // in case there is another indirection |
jrose@1145 | 122 | } |
jrose@1145 | 123 | } |
jrose@1145 | 124 | |
jrose@1145 | 125 | // given the MethodType, find out where the MH argument is buried |
jrose@1145 | 126 | __ movptr(rdx_temp, Address(rax_mtype, |
jrose@2148 | 127 | __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rdi_temp))); |
jrose@2148 | 128 | Register rdx_vmslots = rdx_temp; |
jrose@2148 | 129 | __ movl(rdx_vmslots, Address(rdx_temp, |
jrose@2148 | 130 | __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, rdi_temp))); |
jrose@2148 | 131 | __ movptr(rcx_recv, __ argument_address(rdx_vmslots)); |
jrose@1145 | 132 | |
jrose@2148 | 133 | trace_method_handle(_masm, "invokeExact"); |
jrose@2148 | 134 | |
jrose@2148 | 135 | __ check_method_handle_type(rax_mtype, rcx_recv, rdi_temp, wrong_method_type); |
jrose@2148 | 136 | __ jump_to_method_handle_entry(rcx_recv, rdi_temp); |
jrose@2148 | 137 | |
jrose@2148 | 138 | // for invokeGeneric (only), apply argument and result conversions on the fly |
jrose@2148 | 139 | __ bind(invoke_generic_slow_path); |
jrose@2148 | 140 | #ifdef ASSERT |
jrose@2148 | 141 | { Label L; |
jrose@2148 | 142 | __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeGeneric); |
jrose@2148 | 143 | __ jcc(Assembler::equal, L); |
jrose@2148 | 144 | __ stop("bad methodOop::intrinsic_id"); |
jrose@2148 | 145 | __ bind(L); |
jrose@2148 | 146 | } |
jrose@2148 | 147 | #endif //ASSERT |
jrose@2148 | 148 | Register rbx_temp = rbx_method; // don't need it now |
jrose@2148 | 149 | |
jrose@2148 | 150 | // make room on the stack for another pointer: |
jrose@2148 | 151 | Register rcx_argslot = rcx_recv; |
jrose@2148 | 152 | __ lea(rcx_argslot, __ argument_address(rdx_vmslots, 1)); |
jrose@2148 | 153 | insert_arg_slots(_masm, 2 * stack_move_unit(), _INSERT_REF_MASK, |
jrose@2148 | 154 | rcx_argslot, rbx_temp, rdx_temp); |
jrose@2148 | 155 | |
jrose@2148 | 156 | // load up an adapter from the calling type (Java weaves this) |
jrose@2148 | 157 | __ movptr(rdx_temp, Address(rax_mtype, |
jrose@2148 | 158 | __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rdi_temp))); |
jrose@2148 | 159 | Register rdx_adapter = rdx_temp; |
jrose@2148 | 160 | // movptr(rdx_adapter, Address(rdx_temp, java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes())); |
jrose@2148 | 161 | // deal with old JDK versions: |
jrose@2148 | 162 | __ lea(rdi_temp, Address(rdx_temp, |
jrose@2148 | 163 | __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, rdi_temp))); |
jrose@2148 | 164 | __ cmpptr(rdi_temp, rdx_temp); |
jrose@2148 | 165 | Label sorry_no_invoke_generic; |
jrose@2148 | 166 | __ jccb(Assembler::below, sorry_no_invoke_generic); |
jrose@2148 | 167 | |
jrose@2148 | 168 | __ movptr(rdx_adapter, Address(rdi_temp, 0)); |
jrose@2148 | 169 | __ testptr(rdx_adapter, rdx_adapter); |
jrose@2148 | 170 | __ jccb(Assembler::zero, sorry_no_invoke_generic); |
jrose@2148 | 171 | __ movptr(Address(rcx_argslot, 1 * Interpreter::stackElementSize), rdx_adapter); |
jrose@2148 | 172 | // As a trusted first argument, pass the type being called, so the adapter knows |
jrose@2148 | 173 | // the actual types of the arguments and return values. |
jrose@2148 | 174 | // (Generic invokers are shared among form-families of method-type.) |
jrose@2148 | 175 | __ movptr(Address(rcx_argslot, 0 * Interpreter::stackElementSize), rax_mtype); |
jrose@2148 | 176 | // FIXME: assert that rdx_adapter is of the right method-type. |
jrose@2148 | 177 | __ mov(rcx, rdx_adapter); |
jrose@2148 | 178 | trace_method_handle(_masm, "invokeGeneric"); |
jrose@2148 | 179 | __ jump_to_method_handle_entry(rcx, rdi_temp); |
jrose@2148 | 180 | |
jrose@2148 | 181 | __ bind(sorry_no_invoke_generic); // no invokeGeneric implementation available! |
jrose@2148 | 182 | __ movptr(rcx_recv, Address(rcx_argslot, -1 * Interpreter::stackElementSize)); // recover original MH |
jrose@2148 | 183 | __ push(rax_mtype); // required mtype |
jrose@2148 | 184 | __ push(rcx_recv); // bad mh (1st stacked argument) |
jrose@2148 | 185 | __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
jrose@1145 | 186 | |
jrose@1145 | 187 | return entry_point; |
jrose@1145 | 188 | } |
jrose@1145 | 189 | |
jrose@1145 | 190 | // Helper to insert argument slots into the stack. |
jrose@1145 | 191 | // arg_slots must be a multiple of stack_move_unit() and <= 0 |
jrose@1145 | 192 | void MethodHandles::insert_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 193 | RegisterOrConstant arg_slots, |
jrose@1145 | 194 | int arg_mask, |
jrose@1145 | 195 | Register rax_argslot, |
twisti@1858 | 196 | Register rbx_temp, Register rdx_temp, Register temp3_reg) { |
twisti@1858 | 197 | assert(temp3_reg == noreg, "temp3 not required"); |
jrose@1145 | 198 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 199 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
jrose@1145 | 200 | |
jrose@1145 | 201 | #ifdef ASSERT |
jrose@1145 | 202 | verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame"); |
jrose@1145 | 203 | if (arg_slots.is_register()) { |
jrose@1145 | 204 | Label L_ok, L_bad; |
jrose@1145 | 205 | __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
twisti@1570 | 206 | __ jccb(Assembler::greater, L_bad); |
jrose@1145 | 207 | __ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
twisti@1570 | 208 | __ jccb(Assembler::zero, L_ok); |
jrose@1145 | 209 | __ bind(L_bad); |
jrose@1145 | 210 | __ stop("assert arg_slots <= 0 and clear low bits"); |
jrose@1145 | 211 | __ bind(L_ok); |
jrose@1145 | 212 | } else { |
jrose@1145 | 213 | assert(arg_slots.as_constant() <= 0, ""); |
jrose@1145 | 214 | assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
jrose@1145 | 215 | } |
jrose@1145 | 216 | #endif //ASSERT |
jrose@1145 | 217 | |
jrose@1145 | 218 | #ifdef _LP64 |
jrose@1145 | 219 | if (arg_slots.is_register()) { |
jrose@1145 | 220 | // clean high bits of stack motion register (was loaded as an int) |
jrose@1145 | 221 | __ movslq(arg_slots.as_register(), arg_slots.as_register()); |
jrose@1145 | 222 | } |
jrose@1145 | 223 | #endif |
jrose@1145 | 224 | |
jrose@1145 | 225 | // Make space on the stack for the inserted argument(s). |
jrose@1145 | 226 | // Then pull down everything shallower than rax_argslot. |
jrose@1145 | 227 | // The stacked return address gets pulled down with everything else. |
jrose@1145 | 228 | // That is, copy [rsp, argslot) downward by -size words. In pseudo-code: |
jrose@1145 | 229 | // rsp -= size; |
jrose@1145 | 230 | // for (rdx = rsp + size; rdx < argslot; rdx++) |
jrose@1145 | 231 | // rdx[-size] = rdx[0] |
jrose@1145 | 232 | // argslot -= size; |
jrose@2148 | 233 | BLOCK_COMMENT("insert_arg_slots {"); |
jrose@1145 | 234 | __ mov(rdx_temp, rsp); // source pointer for copy |
jrose@1145 | 235 | __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
jrose@1145 | 236 | { |
jrose@1145 | 237 | Label loop; |
jrose@2148 | 238 | __ BIND(loop); |
jrose@1145 | 239 | // pull one word down each time through the loop |
jrose@1145 | 240 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
jrose@1145 | 241 | __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
jrose@1145 | 242 | __ addptr(rdx_temp, wordSize); |
jrose@1145 | 243 | __ cmpptr(rdx_temp, rax_argslot); |
twisti@1570 | 244 | __ jccb(Assembler::less, loop); |
jrose@1145 | 245 | } |
jrose@1145 | 246 | |
jrose@1145 | 247 | // Now move the argslot down, to point to the opened-up space. |
jrose@1145 | 248 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
jrose@2148 | 249 | BLOCK_COMMENT("} insert_arg_slots"); |
jrose@1145 | 250 | } |
jrose@1145 | 251 | |
jrose@1145 | 252 | // Helper to remove argument slots from the stack. |
jrose@1145 | 253 | // arg_slots must be a multiple of stack_move_unit() and >= 0 |
jrose@1145 | 254 | void MethodHandles::remove_arg_slots(MacroAssembler* _masm, |
jrose@1145 | 255 | RegisterOrConstant arg_slots, |
jrose@1145 | 256 | Register rax_argslot, |
twisti@1858 | 257 | Register rbx_temp, Register rdx_temp, Register temp3_reg) { |
twisti@1858 | 258 | assert(temp3_reg == noreg, "temp3 not required"); |
jrose@1145 | 259 | assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
jrose@1145 | 260 | (!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
jrose@1145 | 261 | |
jrose@1145 | 262 | #ifdef ASSERT |
twisti@1739 | 263 | // Verify that [argslot..argslot+size) lies within (rsp, rbp). |
twisti@1739 | 264 | __ lea(rbx_temp, Address(rax_argslot, arg_slots, Address::times_ptr)); |
twisti@1739 | 265 | verify_argslot(_masm, rbx_temp, "deleted argument(s) must fall within current frame"); |
jrose@1145 | 266 | if (arg_slots.is_register()) { |
jrose@1145 | 267 | Label L_ok, L_bad; |
jrose@1145 | 268 | __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
twisti@1570 | 269 | __ jccb(Assembler::less, L_bad); |
jrose@1145 | 270 | __ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
twisti@1570 | 271 | __ jccb(Assembler::zero, L_ok); |
jrose@1145 | 272 | __ bind(L_bad); |
jrose@1145 | 273 | __ stop("assert arg_slots >= 0 and clear low bits"); |
jrose@1145 | 274 | __ bind(L_ok); |
jrose@1145 | 275 | } else { |
jrose@1145 | 276 | assert(arg_slots.as_constant() >= 0, ""); |
jrose@1145 | 277 | assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
jrose@1145 | 278 | } |
jrose@1145 | 279 | #endif //ASSERT |
jrose@1145 | 280 | |
jrose@1145 | 281 | #ifdef _LP64 |
jrose@1145 | 282 | if (false) { // not needed, since register is positive |
jrose@1145 | 283 | // clean high bits of stack motion register (was loaded as an int) |
jrose@1145 | 284 | if (arg_slots.is_register()) |
jrose@1145 | 285 | __ movslq(arg_slots.as_register(), arg_slots.as_register()); |
jrose@1145 | 286 | } |
jrose@1145 | 287 | #endif |
jrose@1145 | 288 | |
jrose@2148 | 289 | BLOCK_COMMENT("remove_arg_slots {"); |
jrose@1145 | 290 | // Pull up everything shallower than rax_argslot. |
jrose@1145 | 291 | // Then remove the excess space on the stack. |
jrose@1145 | 292 | // The stacked return address gets pulled up with everything else. |
jrose@1145 | 293 | // That is, copy [rsp, argslot) upward by size words. In pseudo-code: |
jrose@1145 | 294 | // for (rdx = argslot-1; rdx >= rsp; --rdx) |
jrose@1145 | 295 | // rdx[size] = rdx[0] |
jrose@1145 | 296 | // argslot += size; |
jrose@1145 | 297 | // rsp += size; |
jrose@1145 | 298 | __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy |
jrose@1145 | 299 | { |
jrose@1145 | 300 | Label loop; |
jrose@2148 | 301 | __ BIND(loop); |
jrose@1145 | 302 | // pull one word up each time through the loop |
jrose@1145 | 303 | __ movptr(rbx_temp, Address(rdx_temp, 0)); |
jrose@1145 | 304 | __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
jrose@1145 | 305 | __ addptr(rdx_temp, -wordSize); |
jrose@1145 | 306 | __ cmpptr(rdx_temp, rsp); |
twisti@1570 | 307 | __ jccb(Assembler::greaterEqual, loop); |
jrose@1145 | 308 | } |
jrose@1145 | 309 | |
jrose@1145 | 310 | // Now move the argslot up, to point to the just-copied block. |
jrose@1145 | 311 | __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
jrose@1145 | 312 | // And adjust the argslot address to point at the deletion point. |
jrose@1145 | 313 | __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
jrose@2148 | 314 | BLOCK_COMMENT("} remove_arg_slots"); |
jrose@1145 | 315 | } |
jrose@1145 | 316 | |
jrose@1145 | 317 | #ifndef PRODUCT |
twisti@1568 | 318 | extern "C" void print_method_handle(oop mh); |
jrose@1145 | 319 | void trace_method_handle_stub(const char* adaptername, |
twisti@1568 | 320 | oop mh, |
jrose@2148 | 321 | intptr_t* saved_regs, |
jrose@1145 | 322 | intptr_t* entry_sp, |
jrose@1474 | 323 | intptr_t* saved_sp, |
jrose@1474 | 324 | intptr_t* saved_bp) { |
jrose@1145 | 325 | // called as a leaf from native code: do not block the JVM! |
jrose@1474 | 326 | intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; |
jrose@1474 | 327 | intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; |
jrose@1474 | 328 | printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", |
jrose@1474 | 329 | adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); |
jrose@2148 | 330 | if (last_sp != saved_sp && last_sp != NULL) |
jrose@1474 | 331 | printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); |
jrose@2148 | 332 | if (Verbose) { |
jrose@2148 | 333 | printf(" reg dump: "); |
jrose@2148 | 334 | int saved_regs_count = (entry_sp-1) - saved_regs; |
jrose@2148 | 335 | // 32 bit: rdi rsi rbp rsp; rbx rdx rcx (*) rax |
jrose@2148 | 336 | int i; |
jrose@2148 | 337 | for (i = 0; i <= saved_regs_count; i++) { |
jrose@2148 | 338 | if (i > 0 && i % 4 == 0 && i != saved_regs_count) |
jrose@2148 | 339 | printf("\n + dump: "); |
jrose@2148 | 340 | printf(" %d: "INTPTR_FORMAT, i, saved_regs[i]); |
jrose@2148 | 341 | } |
jrose@2148 | 342 | printf("\n"); |
jrose@2148 | 343 | int stack_dump_count = 16; |
jrose@2148 | 344 | if (stack_dump_count < (int)(saved_bp + 2 - saved_sp)) |
jrose@2148 | 345 | stack_dump_count = (int)(saved_bp + 2 - saved_sp); |
jrose@2148 | 346 | if (stack_dump_count > 64) stack_dump_count = 48; |
jrose@2148 | 347 | for (i = 0; i < stack_dump_count; i += 4) { |
jrose@2148 | 348 | printf(" dump at SP[%d] "INTPTR_FORMAT": "INTPTR_FORMAT" "INTPTR_FORMAT" "INTPTR_FORMAT" "INTPTR_FORMAT"\n", |
twisti@2173 | 349 | i, (intptr_t) &entry_sp[i+0], entry_sp[i+0], entry_sp[i+1], entry_sp[i+2], entry_sp[i+3]); |
jrose@2148 | 350 | } |
jrose@2148 | 351 | print_method_handle(mh); |
jrose@2148 | 352 | } |
jrose@2148 | 353 | } |
jrose@2148 | 354 | void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
jrose@2148 | 355 | if (!TraceMethodHandles) return; |
jrose@2148 | 356 | BLOCK_COMMENT("trace_method_handle {"); |
jrose@2148 | 357 | __ push(rax); |
jrose@2148 | 358 | __ lea(rax, Address(rsp, wordSize*6)); // entry_sp |
jrose@2148 | 359 | __ pusha(); |
jrose@2148 | 360 | // arguments: |
jrose@2148 | 361 | __ push(rbp); // interpreter frame pointer |
jrose@2148 | 362 | __ push(rsi); // saved_sp |
jrose@2148 | 363 | __ push(rax); // entry_sp |
jrose@2148 | 364 | __ push(rcx); // mh |
jrose@2148 | 365 | __ push(rcx); |
jrose@2148 | 366 | __ movptr(Address(rsp, 0), (intptr_t) adaptername); |
jrose@2148 | 367 | __ call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub), 5); |
jrose@2148 | 368 | __ popa(); |
jrose@2148 | 369 | __ pop(rax); |
jrose@2148 | 370 | BLOCK_COMMENT("} trace_method_handle"); |
jrose@1145 | 371 | } |
jrose@1145 | 372 | #endif //PRODUCT |
jrose@1145 | 373 | |
jrose@1862 | 374 | // which conversion op types are implemented here? |
jrose@1862 | 375 | int MethodHandles::adapter_conversion_ops_supported_mask() { |
jrose@1862 | 376 | return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
jrose@1862 | 377 | |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
jrose@1862 | 378 | |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
jrose@1862 | 379 | |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
jrose@1862 | 380 | |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
jrose@1862 | 381 | |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
jrose@1862 | 382 | |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
jrose@1862 | 383 | |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
jrose@1862 | 384 | |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
jrose@1862 | 385 | //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
jrose@1862 | 386 | ); |
jrose@1862 | 387 | // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
jrose@1862 | 388 | } |
jrose@1862 | 389 | |
jrose@1145 | 390 | // Generate an "entry" field for a method handle. |
jrose@1145 | 391 | // This determines how the method handle will respond to calls. |
jrose@1145 | 392 | void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
jrose@1145 | 393 | // Here is the register state during an interpreted call, |
jrose@1145 | 394 | // as set up by generate_method_handle_interpreter_entry(): |
jrose@1145 | 395 | // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) |
jrose@1145 | 396 | // - rcx: receiver method handle |
jrose@1145 | 397 | // - rax: method handle type (only used by the check_mtype entry point) |
jrose@1145 | 398 | // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
jrose@1145 | 399 | // - rdx: garbage temp, can blow away |
jrose@1145 | 400 | |
jrose@1145 | 401 | Register rcx_recv = rcx; |
jrose@1145 | 402 | Register rax_argslot = rax; |
jrose@1145 | 403 | Register rbx_temp = rbx; |
jrose@1145 | 404 | Register rdx_temp = rdx; |
jrose@1145 | 405 | |
jrose@1474 | 406 | // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls) |
jrose@1474 | 407 | // and gen_c2i_adapter (from compiled calls): |
jrose@1474 | 408 | Register saved_last_sp = LP64_ONLY(r13) NOT_LP64(rsi); |
jrose@1474 | 409 | |
jrose@1145 | 410 | guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
jrose@1145 | 411 | |
jrose@1145 | 412 | // some handy addresses |
jrose@1145 | 413 | Address rbx_method_fie( rbx, methodOopDesc::from_interpreted_offset() ); |
jrose@1145 | 414 | |
jrose@1145 | 415 | Address rcx_mh_vmtarget( rcx_recv, java_dyn_MethodHandle::vmtarget_offset_in_bytes() ); |
jrose@1145 | 416 | Address rcx_dmh_vmindex( rcx_recv, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes() ); |
jrose@1145 | 417 | |
jrose@1145 | 418 | Address rcx_bmh_vmargslot( rcx_recv, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@1145 | 419 | Address rcx_bmh_argument( rcx_recv, sun_dyn_BoundMethodHandle::argument_offset_in_bytes() ); |
jrose@1145 | 420 | |
jrose@1145 | 421 | Address rcx_amh_vmargslot( rcx_recv, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes() ); |
jrose@1145 | 422 | Address rcx_amh_argument( rcx_recv, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes() ); |
jrose@1145 | 423 | Address rcx_amh_conversion( rcx_recv, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes() ); |
jrose@1145 | 424 | Address vmarg; // __ argument_address(vmargslot) |
jrose@1145 | 425 | |
jrose@1474 | 426 | const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); |
jrose@1474 | 427 | |
jrose@1145 | 428 | if (have_entry(ek)) { |
jrose@1145 | 429 | __ nop(); // empty stubs make SG sick |
jrose@1145 | 430 | return; |
jrose@1145 | 431 | } |
jrose@1145 | 432 | |
jrose@1145 | 433 | address interp_entry = __ pc(); |
jrose@1145 | 434 | if (UseCompressedOops) __ unimplemented("UseCompressedOops"); |
jrose@1145 | 435 | |
jrose@2148 | 436 | trace_method_handle(_masm, entry_name(ek)); |
jrose@2148 | 437 | |
jrose@2148 | 438 | BLOCK_COMMENT(entry_name(ek)); |
jrose@1145 | 439 | |
jrose@1145 | 440 | switch ((int) ek) { |
jrose@1474 | 441 | case _raise_exception: |
jrose@1145 | 442 | { |
jrose@1474 | 443 | // Not a real MH entry, but rather shared code for raising an exception. |
jrose@1474 | 444 | // Extra local arguments are pushed on stack, as required type at TOS+8, |
jrose@1474 | 445 | // failing object (or NULL) at TOS+4, failing bytecode type at TOS. |
jrose@1474 | 446 | // Beyond those local arguments are the PC, of course. |
jrose@1474 | 447 | Register rdx_code = rdx_temp; |
jrose@1474 | 448 | Register rcx_fail = rcx_recv; |
jrose@1474 | 449 | Register rax_want = rax_argslot; |
jrose@1474 | 450 | Register rdi_pc = rdi; |
jrose@1474 | 451 | __ pop(rdx_code); // TOS+0 |
jrose@1474 | 452 | __ pop(rcx_fail); // TOS+4 |
jrose@1474 | 453 | __ pop(rax_want); // TOS+8 |
jrose@1474 | 454 | __ pop(rdi_pc); // caller PC |
jrose@1145 | 455 | |
jrose@1474 | 456 | __ mov(rsp, rsi); // cut the stack back to where the caller started |
jrose@1145 | 457 | |
jrose@1474 | 458 | // Repush the arguments as if coming from the interpreter. |
jrose@1474 | 459 | __ push(rdx_code); |
jrose@1474 | 460 | __ push(rcx_fail); |
jrose@1474 | 461 | __ push(rax_want); |
jrose@1145 | 462 | |
jrose@1474 | 463 | Register rbx_method = rbx_temp; |
jrose@1474 | 464 | Label no_method; |
jrose@1474 | 465 | // FIXME: fill in _raise_exception_method with a suitable sun.dyn method |
jrose@1474 | 466 | __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method)); |
jrose@1474 | 467 | __ testptr(rbx_method, rbx_method); |
twisti@1570 | 468 | __ jccb(Assembler::zero, no_method); |
jrose@1474 | 469 | int jobject_oop_offset = 0; |
jrose@1474 | 470 | __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject |
jrose@1474 | 471 | __ testptr(rbx_method, rbx_method); |
twisti@1570 | 472 | __ jccb(Assembler::zero, no_method); |
jrose@1474 | 473 | __ verify_oop(rbx_method); |
jrose@1474 | 474 | __ push(rdi_pc); // and restore caller PC |
jrose@1474 | 475 | __ jmp(rbx_method_fie); |
jrose@1145 | 476 | |
jrose@1474 | 477 | // If we get here, the Java runtime did not do its job of creating the exception. |
jrose@1474 | 478 | // Do something that is at least causes a valid throw from the interpreter. |
jrose@1474 | 479 | __ bind(no_method); |
jrose@1474 | 480 | __ pop(rax_want); |
jrose@1474 | 481 | __ pop(rcx_fail); |
jrose@1474 | 482 | __ push(rax_want); |
jrose@1474 | 483 | __ push(rcx_fail); |
jrose@1145 | 484 | __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
jrose@1145 | 485 | } |
jrose@1145 | 486 | break; |
jrose@1145 | 487 | |
jrose@1145 | 488 | case _invokestatic_mh: |
jrose@1145 | 489 | case _invokespecial_mh: |
jrose@1145 | 490 | { |
jrose@1145 | 491 | Register rbx_method = rbx_temp; |
jrose@1145 | 492 | __ movptr(rbx_method, rcx_mh_vmtarget); // target is a methodOop |
jrose@1145 | 493 | __ verify_oop(rbx_method); |
jrose@1145 | 494 | // same as TemplateTable::invokestatic or invokespecial, |
jrose@1145 | 495 | // minus the CP setup and profiling: |
jrose@1145 | 496 | if (ek == _invokespecial_mh) { |
jrose@1145 | 497 | // Must load & check the first argument before entering the target method. |
jrose@1145 | 498 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 499 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 500 | __ null_check(rcx_recv); |
jrose@1145 | 501 | __ verify_oop(rcx_recv); |
jrose@1145 | 502 | } |
jrose@1145 | 503 | __ jmp(rbx_method_fie); |
jrose@1145 | 504 | } |
jrose@1145 | 505 | break; |
jrose@1145 | 506 | |
jrose@1145 | 507 | case _invokevirtual_mh: |
jrose@1145 | 508 | { |
jrose@1145 | 509 | // same as TemplateTable::invokevirtual, |
jrose@1145 | 510 | // minus the CP setup and profiling: |
jrose@1145 | 511 | |
jrose@1145 | 512 | // pick out the vtable index and receiver offset from the MH, |
jrose@1145 | 513 | // and then we can discard it: |
jrose@1145 | 514 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 515 | Register rbx_index = rbx_temp; |
jrose@1145 | 516 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 517 | // Note: The verifier allows us to ignore rcx_mh_vmtarget. |
jrose@1145 | 518 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 519 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 520 | |
jrose@1145 | 521 | // get receiver klass |
jrose@1145 | 522 | Register rax_klass = rax_argslot; |
jrose@1145 | 523 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 524 | __ verify_oop(rax_klass); |
jrose@1145 | 525 | |
jrose@1145 | 526 | // get target methodOop & entry point |
jrose@1145 | 527 | const int base = instanceKlass::vtable_start_offset() * wordSize; |
jrose@1145 | 528 | assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); |
jrose@1145 | 529 | Address vtable_entry_addr(rax_klass, |
jrose@1145 | 530 | rbx_index, Address::times_ptr, |
jrose@1145 | 531 | base + vtableEntry::method_offset_in_bytes()); |
jrose@1145 | 532 | Register rbx_method = rbx_temp; |
twisti@1543 | 533 | __ movptr(rbx_method, vtable_entry_addr); |
jrose@1145 | 534 | |
jrose@1145 | 535 | __ verify_oop(rbx_method); |
jrose@1145 | 536 | __ jmp(rbx_method_fie); |
jrose@1145 | 537 | } |
jrose@1145 | 538 | break; |
jrose@1145 | 539 | |
jrose@1145 | 540 | case _invokeinterface_mh: |
jrose@1145 | 541 | { |
jrose@1145 | 542 | // same as TemplateTable::invokeinterface, |
jrose@1145 | 543 | // minus the CP setup and profiling: |
jrose@1145 | 544 | |
jrose@1145 | 545 | // pick out the interface and itable index from the MH. |
jrose@1145 | 546 | __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
jrose@1145 | 547 | Register rdx_intf = rdx_temp; |
jrose@1145 | 548 | Register rbx_index = rbx_temp; |
jrose@1145 | 549 | __ movptr(rdx_intf, rcx_mh_vmtarget); |
jrose@1145 | 550 | __ movl(rbx_index, rcx_dmh_vmindex); |
jrose@1145 | 551 | __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
jrose@1145 | 552 | __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 553 | |
jrose@1145 | 554 | // get receiver klass |
jrose@1145 | 555 | Register rax_klass = rax_argslot; |
jrose@1145 | 556 | __ load_klass(rax_klass, rcx_recv); |
jrose@1145 | 557 | __ verify_oop(rax_klass); |
jrose@1145 | 558 | |
jrose@1474 | 559 | Register rdi_temp = rdi; |
jrose@1145 | 560 | Register rbx_method = rbx_index; |
jrose@1145 | 561 | |
jrose@1145 | 562 | // get interface klass |
jrose@1145 | 563 | Label no_such_interface; |
jrose@1145 | 564 | __ verify_oop(rdx_intf); |
jrose@1145 | 565 | __ lookup_interface_method(rax_klass, rdx_intf, |
jrose@1145 | 566 | // note: next two args must be the same: |
jrose@1145 | 567 | rbx_index, rbx_method, |
jrose@1474 | 568 | rdi_temp, |
jrose@1145 | 569 | no_such_interface); |
jrose@1145 | 570 | |
jrose@1145 | 571 | __ verify_oop(rbx_method); |
jrose@1145 | 572 | __ jmp(rbx_method_fie); |
jrose@1145 | 573 | __ hlt(); |
jrose@1145 | 574 | |
jrose@1145 | 575 | __ bind(no_such_interface); |
jrose@1145 | 576 | // Throw an exception. |
jrose@1145 | 577 | // For historical reasons, it will be IncompatibleClassChangeError. |
jrose@1474 | 578 | __ pushptr(Address(rdx_intf, java_mirror_offset)); // required interface |
jrose@1474 | 579 | __ push(rcx_recv); // bad receiver |
jrose@1474 | 580 | __ push((int)Bytecodes::_invokeinterface); // who is complaining? |
jrose@1474 | 581 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 582 | } |
jrose@1145 | 583 | break; |
jrose@1145 | 584 | |
jrose@1145 | 585 | case _bound_ref_mh: |
jrose@1145 | 586 | case _bound_int_mh: |
jrose@1145 | 587 | case _bound_long_mh: |
jrose@1145 | 588 | case _bound_ref_direct_mh: |
jrose@1145 | 589 | case _bound_int_direct_mh: |
jrose@1145 | 590 | case _bound_long_direct_mh: |
jrose@1145 | 591 | { |
jrose@1145 | 592 | bool direct_to_method = (ek >= _bound_ref_direct_mh); |
twisti@1739 | 593 | BasicType arg_type = T_ILLEGAL; |
twisti@1739 | 594 | int arg_mask = _INSERT_NO_MASK; |
twisti@1739 | 595 | int arg_slots = -1; |
twisti@1739 | 596 | get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); |
jrose@1145 | 597 | |
jrose@1145 | 598 | // make room for the new argument: |
jrose@1145 | 599 | __ movl(rax_argslot, rcx_bmh_vmargslot); |
jrose@1145 | 600 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 601 | insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, |
jrose@1145 | 602 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 603 | |
jrose@1145 | 604 | // store bound argument into the new stack slot: |
jrose@1145 | 605 | __ movptr(rbx_temp, rcx_bmh_argument); |
jrose@1145 | 606 | Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type)); |
jrose@1145 | 607 | if (arg_type == T_OBJECT) { |
jrose@1145 | 608 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 609 | } else { |
twisti@1570 | 610 | __ load_sized_value(rdx_temp, prim_value_addr, |
jrose@1145 | 611 | type2aelembytes(arg_type), is_signed_subword_type(arg_type)); |
twisti@1570 | 612 | __ movptr(Address(rax_argslot, 0), rdx_temp); |
jrose@1145 | 613 | #ifndef _LP64 |
jrose@1145 | 614 | if (arg_slots == 2) { |
twisti@1570 | 615 | __ movl(rdx_temp, prim_value_addr.plus_disp(wordSize)); |
twisti@1861 | 616 | __ movl(Address(rax_argslot, Interpreter::stackElementSize), rdx_temp); |
jrose@1145 | 617 | } |
jrose@1145 | 618 | #endif //_LP64 |
jrose@1145 | 619 | } |
jrose@1145 | 620 | |
jrose@1145 | 621 | if (direct_to_method) { |
jrose@1145 | 622 | Register rbx_method = rbx_temp; |
jrose@1145 | 623 | __ movptr(rbx_method, rcx_mh_vmtarget); |
jrose@1145 | 624 | __ verify_oop(rbx_method); |
jrose@1145 | 625 | __ jmp(rbx_method_fie); |
jrose@1145 | 626 | } else { |
jrose@1145 | 627 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 628 | __ verify_oop(rcx_recv); |
jrose@1145 | 629 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 630 | } |
jrose@1145 | 631 | } |
jrose@1145 | 632 | break; |
jrose@1145 | 633 | |
jrose@1145 | 634 | case _adapter_retype_only: |
jrose@1474 | 635 | case _adapter_retype_raw: |
jrose@1145 | 636 | // immediately jump to the next MH layer: |
jrose@1145 | 637 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 638 | __ verify_oop(rcx_recv); |
jrose@1145 | 639 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 640 | // This is OK when all parameter types widen. |
jrose@1145 | 641 | // It is also OK when a return type narrows. |
jrose@1145 | 642 | break; |
jrose@1145 | 643 | |
jrose@1145 | 644 | case _adapter_check_cast: |
jrose@1145 | 645 | { |
jrose@1145 | 646 | // temps: |
jrose@1145 | 647 | Register rbx_klass = rbx_temp; // interesting AMH data |
jrose@1145 | 648 | |
jrose@1145 | 649 | // check a reference argument before jumping to the next layer of MH: |
jrose@1145 | 650 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 651 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 652 | |
jrose@1145 | 653 | // What class are we casting to? |
jrose@1145 | 654 | __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
jrose@1145 | 655 | __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
jrose@1145 | 656 | |
jrose@1145 | 657 | Label done; |
jrose@1145 | 658 | __ movptr(rdx_temp, vmarg); |
twisti@1712 | 659 | __ testptr(rdx_temp, rdx_temp); |
twisti@1570 | 660 | __ jccb(Assembler::zero, done); // no cast if null |
jrose@1145 | 661 | __ load_klass(rdx_temp, rdx_temp); |
jrose@1145 | 662 | |
jrose@1145 | 663 | // live at this point: |
jrose@1145 | 664 | // - rbx_klass: klass required by the target method |
jrose@1145 | 665 | // - rdx_temp: argument klass to test |
jrose@1474 | 666 | // - rcx_recv: adapter method handle |
jrose@1145 | 667 | __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done); |
jrose@1145 | 668 | |
jrose@1145 | 669 | // If we get here, the type check failed! |
jrose@1145 | 670 | // Call the wrong_method_type stub, passing the failing argument type in rax. |
jrose@1145 | 671 | Register rax_mtype = rax_argslot; |
jrose@1474 | 672 | __ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field |
jrose@1474 | 673 | __ movptr(rdx_temp, vmarg); |
jrose@1474 | 674 | |
jrose@1474 | 675 | __ pushptr(rcx_amh_argument); // required class |
jrose@1474 | 676 | __ push(rdx_temp); // bad object |
jrose@1474 | 677 | __ push((int)Bytecodes::_checkcast); // who is complaining? |
jrose@1474 | 678 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 679 | |
jrose@1145 | 680 | __ bind(done); |
jrose@1474 | 681 | // get the new MH: |
jrose@1474 | 682 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 683 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 684 | } |
jrose@1145 | 685 | break; |
jrose@1145 | 686 | |
jrose@1145 | 687 | case _adapter_prim_to_prim: |
jrose@1145 | 688 | case _adapter_ref_to_prim: |
jrose@1145 | 689 | // handled completely by optimized cases |
jrose@1145 | 690 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 691 | break; |
jrose@1145 | 692 | |
jrose@1145 | 693 | case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 694 | //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 695 | case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 696 | case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 697 | { |
jrose@1145 | 698 | // perform an in-place conversion to int or an int subword |
jrose@1145 | 699 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 700 | vmarg = __ argument_address(rax_argslot); |
jrose@1145 | 701 | |
jrose@1145 | 702 | switch (ek) { |
jrose@1145 | 703 | case _adapter_opt_i2i: |
jrose@1145 | 704 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 705 | break; |
jrose@1145 | 706 | case _adapter_opt_l2i: |
jrose@1145 | 707 | { |
jrose@1145 | 708 | // just delete the extra slot; on a little-endian machine we keep the first |
jrose@1145 | 709 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 710 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 711 | rax_argslot, rbx_temp, rdx_temp); |
twisti@1861 | 712 | vmarg = Address(rax_argslot, -Interpreter::stackElementSize); |
jrose@1145 | 713 | __ movl(rdx_temp, vmarg); |
jrose@1145 | 714 | } |
jrose@1145 | 715 | break; |
jrose@1145 | 716 | case _adapter_opt_unboxi: |
jrose@1145 | 717 | { |
jrose@1145 | 718 | // Load the value up from the heap. |
jrose@1145 | 719 | __ movptr(rdx_temp, vmarg); |
jrose@1145 | 720 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); |
jrose@1145 | 721 | #ifdef ASSERT |
jrose@1145 | 722 | for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
jrose@1145 | 723 | if (is_subword_type(BasicType(bt))) |
jrose@1145 | 724 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); |
jrose@1145 | 725 | } |
jrose@1145 | 726 | #endif |
jrose@1145 | 727 | __ null_check(rdx_temp, value_offset); |
jrose@1145 | 728 | __ movl(rdx_temp, Address(rdx_temp, value_offset)); |
jrose@1145 | 729 | // We load this as a word. Because we are little-endian, |
jrose@1145 | 730 | // the low bits will be correct, but the high bits may need cleaning. |
jrose@1145 | 731 | // The vminfo will guide us to clean those bits. |
jrose@1145 | 732 | } |
jrose@1145 | 733 | break; |
jrose@1145 | 734 | default: |
twisti@1739 | 735 | ShouldNotReachHere(); |
jrose@1145 | 736 | } |
jrose@1145 | 737 | |
twisti@1739 | 738 | // Do the requested conversion and store the value. |
jrose@1145 | 739 | Register rbx_vminfo = rbx_temp; |
jrose@1145 | 740 | __ movl(rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 741 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 742 | |
jrose@1145 | 743 | // get the new MH: |
jrose@1145 | 744 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 745 | // (now we are done with the old MH) |
jrose@1145 | 746 | |
jrose@1145 | 747 | // original 32-bit vmdata word must be of this form: |
twisti@1570 | 748 | // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | |
twisti@1570 | 749 | __ xchgptr(rcx, rbx_vminfo); // free rcx for shifts |
jrose@1145 | 750 | __ shll(rdx_temp /*, rcx*/); |
jrose@1145 | 751 | Label zero_extend, done; |
jrose@1145 | 752 | __ testl(rcx, CONV_VMINFO_SIGN_FLAG); |
twisti@1570 | 753 | __ jccb(Assembler::zero, zero_extend); |
jrose@1145 | 754 | |
jrose@1145 | 755 | // this path is taken for int->byte, int->short |
jrose@1145 | 756 | __ sarl(rdx_temp /*, rcx*/); |
twisti@1570 | 757 | __ jmpb(done); |
jrose@1145 | 758 | |
jrose@1145 | 759 | __ bind(zero_extend); |
jrose@1145 | 760 | // this is taken for int->char |
jrose@1145 | 761 | __ shrl(rdx_temp /*, rcx*/); |
jrose@1145 | 762 | |
jrose@1145 | 763 | __ bind(done); |
twisti@1739 | 764 | __ movl(vmarg, rdx_temp); // Store the value. |
twisti@1570 | 765 | __ xchgptr(rcx, rbx_vminfo); // restore rcx_recv |
jrose@1145 | 766 | |
jrose@1145 | 767 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 768 | } |
jrose@1145 | 769 | break; |
jrose@1145 | 770 | |
jrose@1145 | 771 | case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 772 | case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim |
jrose@1145 | 773 | { |
jrose@1145 | 774 | // perform an in-place int-to-long or ref-to-long conversion |
jrose@1145 | 775 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 776 | |
jrose@1145 | 777 | // on a little-endian machine we keep the first slot and add another after |
jrose@1145 | 778 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 779 | insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
jrose@1145 | 780 | rax_argslot, rbx_temp, rdx_temp); |
twisti@1861 | 781 | Address vmarg1(rax_argslot, -Interpreter::stackElementSize); |
twisti@1861 | 782 | Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize); |
jrose@1145 | 783 | |
jrose@1145 | 784 | switch (ek) { |
jrose@1145 | 785 | case _adapter_opt_i2l: |
jrose@1145 | 786 | { |
twisti@1728 | 787 | #ifdef _LP64 |
twisti@1728 | 788 | __ movslq(rdx_temp, vmarg1); // Load sign-extended |
twisti@1728 | 789 | __ movq(vmarg1, rdx_temp); // Store into first slot |
twisti@1728 | 790 | #else |
jrose@1145 | 791 | __ movl(rdx_temp, vmarg1); |
twisti@1728 | 792 | __ sarl(rdx_temp, BitsPerInt - 1); // __ extend_sign() |
jrose@1145 | 793 | __ movl(vmarg2, rdx_temp); // store second word |
twisti@1728 | 794 | #endif |
jrose@1145 | 795 | } |
jrose@1145 | 796 | break; |
jrose@1145 | 797 | case _adapter_opt_unboxl: |
jrose@1145 | 798 | { |
jrose@1145 | 799 | // Load the value up from the heap. |
jrose@1145 | 800 | __ movptr(rdx_temp, vmarg1); |
jrose@1145 | 801 | int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); |
jrose@1145 | 802 | assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); |
jrose@1145 | 803 | __ null_check(rdx_temp, value_offset); |
twisti@1728 | 804 | #ifdef _LP64 |
twisti@1728 | 805 | __ movq(rbx_temp, Address(rdx_temp, value_offset)); |
twisti@1728 | 806 | __ movq(vmarg1, rbx_temp); |
twisti@1728 | 807 | #else |
jrose@1145 | 808 | __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt)); |
jrose@1145 | 809 | __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt)); |
jrose@1145 | 810 | __ movl(vmarg1, rbx_temp); |
jrose@1145 | 811 | __ movl(vmarg2, rdx_temp); |
twisti@1728 | 812 | #endif |
jrose@1145 | 813 | } |
jrose@1145 | 814 | break; |
jrose@1145 | 815 | default: |
twisti@1739 | 816 | ShouldNotReachHere(); |
jrose@1145 | 817 | } |
jrose@1145 | 818 | |
jrose@1145 | 819 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 820 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 821 | } |
jrose@1145 | 822 | break; |
jrose@1145 | 823 | |
jrose@1145 | 824 | case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 825 | case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim |
jrose@1145 | 826 | { |
jrose@1145 | 827 | // perform an in-place floating primitive conversion |
jrose@1145 | 828 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 829 | __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
jrose@1145 | 830 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 831 | insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
jrose@1145 | 832 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 833 | } |
twisti@1861 | 834 | Address vmarg(rax_argslot, -Interpreter::stackElementSize); |
jrose@1145 | 835 | |
jrose@1145 | 836 | #ifdef _LP64 |
jrose@1145 | 837 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 838 | __ movflt(xmm0, vmarg); |
jrose@1145 | 839 | __ cvtss2sd(xmm0, xmm0); |
jrose@1145 | 840 | __ movdbl(vmarg, xmm0); |
jrose@1145 | 841 | } else { |
jrose@1145 | 842 | __ movdbl(xmm0, vmarg); |
jrose@1145 | 843 | __ cvtsd2ss(xmm0, xmm0); |
jrose@1145 | 844 | __ movflt(vmarg, xmm0); |
jrose@1145 | 845 | } |
jrose@1145 | 846 | #else //_LP64 |
jrose@1145 | 847 | if (ek == _adapter_opt_f2d) { |
jrose@1145 | 848 | __ fld_s(vmarg); // load float to ST0 |
jrose@1145 | 849 | __ fstp_s(vmarg); // store single |
twisti@1739 | 850 | } else { |
jrose@1145 | 851 | __ fld_d(vmarg); // load double to ST0 |
jrose@1145 | 852 | __ fstp_s(vmarg); // store single |
jrose@1145 | 853 | } |
jrose@1145 | 854 | #endif //_LP64 |
jrose@1145 | 855 | |
jrose@1145 | 856 | if (ek == _adapter_opt_d2f) { |
jrose@1145 | 857 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 858 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 859 | } |
jrose@1145 | 860 | |
jrose@1145 | 861 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 862 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 863 | } |
jrose@1145 | 864 | break; |
jrose@1145 | 865 | |
jrose@1145 | 866 | case _adapter_prim_to_ref: |
jrose@1145 | 867 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 868 | break; |
jrose@1145 | 869 | |
jrose@1145 | 870 | case _adapter_swap_args: |
jrose@1145 | 871 | case _adapter_rot_args: |
jrose@1145 | 872 | // handled completely by optimized cases |
jrose@1145 | 873 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 874 | break; |
jrose@1145 | 875 | |
jrose@1145 | 876 | case _adapter_opt_swap_1: |
jrose@1145 | 877 | case _adapter_opt_swap_2: |
jrose@1145 | 878 | case _adapter_opt_rot_1_up: |
jrose@1145 | 879 | case _adapter_opt_rot_1_down: |
jrose@1145 | 880 | case _adapter_opt_rot_2_up: |
jrose@1145 | 881 | case _adapter_opt_rot_2_down: |
jrose@1145 | 882 | { |
twisti@1739 | 883 | int swap_bytes = 0, rotate = 0; |
twisti@1739 | 884 | get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); |
jrose@1145 | 885 | |
jrose@1145 | 886 | // 'argslot' is the position of the first argument to swap |
jrose@1145 | 887 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 888 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 889 | |
jrose@1145 | 890 | // 'vminfo' is the second |
jrose@1145 | 891 | Register rbx_destslot = rbx_temp; |
jrose@1145 | 892 | __ movl(rbx_destslot, rcx_amh_conversion); |
jrose@1145 | 893 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 894 | __ andl(rbx_destslot, CONV_VMINFO_MASK); |
jrose@1145 | 895 | __ lea(rbx_destslot, __ argument_address(rbx_destslot)); |
jrose@1145 | 896 | DEBUG_ONLY(verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame")); |
jrose@1145 | 897 | |
jrose@1145 | 898 | if (!rotate) { |
jrose@1145 | 899 | for (int i = 0; i < swap_bytes; i += wordSize) { |
jrose@1145 | 900 | __ movptr(rdx_temp, Address(rax_argslot , i)); |
jrose@1145 | 901 | __ push(rdx_temp); |
jrose@1145 | 902 | __ movptr(rdx_temp, Address(rbx_destslot, i)); |
jrose@1145 | 903 | __ movptr(Address(rax_argslot, i), rdx_temp); |
jrose@1145 | 904 | __ pop(rdx_temp); |
jrose@1145 | 905 | __ movptr(Address(rbx_destslot, i), rdx_temp); |
jrose@1145 | 906 | } |
jrose@1145 | 907 | } else { |
jrose@1145 | 908 | // push the first chunk, which is going to get overwritten |
jrose@1145 | 909 | for (int i = swap_bytes; (i -= wordSize) >= 0; ) { |
jrose@1145 | 910 | __ movptr(rdx_temp, Address(rax_argslot, i)); |
jrose@1145 | 911 | __ push(rdx_temp); |
jrose@1145 | 912 | } |
jrose@1145 | 913 | |
jrose@1145 | 914 | if (rotate > 0) { |
jrose@1145 | 915 | // rotate upward |
jrose@1145 | 916 | __ subptr(rax_argslot, swap_bytes); |
jrose@1145 | 917 | #ifdef ASSERT |
jrose@1145 | 918 | { |
jrose@1145 | 919 | // Verify that argslot > destslot, by at least swap_bytes. |
jrose@1145 | 920 | Label L_ok; |
jrose@1145 | 921 | __ cmpptr(rax_argslot, rbx_destslot); |
twisti@1570 | 922 | __ jccb(Assembler::aboveEqual, L_ok); |
jrose@1145 | 923 | __ stop("source must be above destination (upward rotation)"); |
jrose@1145 | 924 | __ bind(L_ok); |
jrose@1145 | 925 | } |
jrose@1145 | 926 | #endif |
jrose@1145 | 927 | // work argslot down to destslot, copying contiguous data upwards |
jrose@1145 | 928 | // pseudo-code: |
jrose@1145 | 929 | // rax = src_addr - swap_bytes |
jrose@1145 | 930 | // rbx = dest_addr |
jrose@1145 | 931 | // while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--; |
jrose@1145 | 932 | Label loop; |
jrose@1145 | 933 | __ bind(loop); |
jrose@1145 | 934 | __ movptr(rdx_temp, Address(rax_argslot, 0)); |
jrose@1145 | 935 | __ movptr(Address(rax_argslot, swap_bytes), rdx_temp); |
jrose@1145 | 936 | __ addptr(rax_argslot, -wordSize); |
jrose@1145 | 937 | __ cmpptr(rax_argslot, rbx_destslot); |
twisti@1570 | 938 | __ jccb(Assembler::aboveEqual, loop); |
jrose@1145 | 939 | } else { |
jrose@1145 | 940 | __ addptr(rax_argslot, swap_bytes); |
jrose@1145 | 941 | #ifdef ASSERT |
jrose@1145 | 942 | { |
jrose@1145 | 943 | // Verify that argslot < destslot, by at least swap_bytes. |
jrose@1145 | 944 | Label L_ok; |
jrose@1145 | 945 | __ cmpptr(rax_argslot, rbx_destslot); |
twisti@1570 | 946 | __ jccb(Assembler::belowEqual, L_ok); |
jrose@1145 | 947 | __ stop("source must be below destination (downward rotation)"); |
jrose@1145 | 948 | __ bind(L_ok); |
jrose@1145 | 949 | } |
jrose@1145 | 950 | #endif |
jrose@1145 | 951 | // work argslot up to destslot, copying contiguous data downwards |
jrose@1145 | 952 | // pseudo-code: |
jrose@1145 | 953 | // rax = src_addr + swap_bytes |
jrose@1145 | 954 | // rbx = dest_addr |
jrose@1145 | 955 | // while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++; |
jrose@1145 | 956 | Label loop; |
jrose@1145 | 957 | __ bind(loop); |
jrose@1145 | 958 | __ movptr(rdx_temp, Address(rax_argslot, 0)); |
jrose@1145 | 959 | __ movptr(Address(rax_argslot, -swap_bytes), rdx_temp); |
jrose@1145 | 960 | __ addptr(rax_argslot, wordSize); |
jrose@1145 | 961 | __ cmpptr(rax_argslot, rbx_destslot); |
twisti@1570 | 962 | __ jccb(Assembler::belowEqual, loop); |
jrose@1145 | 963 | } |
jrose@1145 | 964 | |
jrose@1145 | 965 | // pop the original first chunk into the destination slot, now free |
jrose@1145 | 966 | for (int i = 0; i < swap_bytes; i += wordSize) { |
jrose@1145 | 967 | __ pop(rdx_temp); |
jrose@1145 | 968 | __ movptr(Address(rbx_destslot, i), rdx_temp); |
jrose@1145 | 969 | } |
jrose@1145 | 970 | } |
jrose@1145 | 971 | |
jrose@1145 | 972 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 973 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 974 | } |
jrose@1145 | 975 | break; |
jrose@1145 | 976 | |
jrose@1145 | 977 | case _adapter_dup_args: |
jrose@1145 | 978 | { |
jrose@1145 | 979 | // 'argslot' is the position of the first argument to duplicate |
jrose@1145 | 980 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 981 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 982 | |
jrose@1145 | 983 | // 'stack_move' is negative number of words to duplicate |
jrose@1145 | 984 | Register rdx_stack_move = rdx_temp; |
twisti@1728 | 985 | __ movl2ptr(rdx_stack_move, rcx_amh_conversion); |
twisti@1728 | 986 | __ sarptr(rdx_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 987 | |
jrose@1145 | 988 | int argslot0_num = 0; |
jrose@1145 | 989 | Address argslot0 = __ argument_address(RegisterOrConstant(argslot0_num)); |
jrose@1145 | 990 | assert(argslot0.base() == rsp, ""); |
jrose@1145 | 991 | int pre_arg_size = argslot0.disp(); |
jrose@1145 | 992 | assert(pre_arg_size % wordSize == 0, ""); |
jrose@1145 | 993 | assert(pre_arg_size > 0, "must include PC"); |
jrose@1145 | 994 | |
jrose@1145 | 995 | // remember the old rsp+1 (argslot[0]) |
jrose@1145 | 996 | Register rbx_oldarg = rbx_temp; |
jrose@1145 | 997 | __ lea(rbx_oldarg, argslot0); |
jrose@1145 | 998 | |
jrose@1145 | 999 | // move rsp down to make room for dups |
jrose@1145 | 1000 | __ lea(rsp, Address(rsp, rdx_stack_move, Address::times_ptr)); |
jrose@1145 | 1001 | |
jrose@1145 | 1002 | // compute the new rsp+1 (argslot[0]) |
jrose@1145 | 1003 | Register rdx_newarg = rdx_temp; |
jrose@1145 | 1004 | __ lea(rdx_newarg, argslot0); |
jrose@1145 | 1005 | |
jrose@1145 | 1006 | __ push(rdi); // need a temp |
jrose@1145 | 1007 | // (preceding push must be done after arg addresses are taken!) |
jrose@1145 | 1008 | |
jrose@1145 | 1009 | // pull down the pre_arg_size data (PC) |
jrose@1145 | 1010 | for (int i = -pre_arg_size; i < 0; i += wordSize) { |
jrose@1145 | 1011 | __ movptr(rdi, Address(rbx_oldarg, i)); |
jrose@1145 | 1012 | __ movptr(Address(rdx_newarg, i), rdi); |
jrose@1145 | 1013 | } |
jrose@1145 | 1014 | |
jrose@1145 | 1015 | // copy from rax_argslot[0...] down to new_rsp[1...] |
jrose@1145 | 1016 | // pseudo-code: |
jrose@1145 | 1017 | // rbx = old_rsp+1 |
jrose@1145 | 1018 | // rdx = new_rsp+1 |
jrose@1145 | 1019 | // rax = argslot |
jrose@1145 | 1020 | // while (rdx < rbx) *rdx++ = *rax++ |
jrose@1145 | 1021 | Label loop; |
jrose@1145 | 1022 | __ bind(loop); |
jrose@1145 | 1023 | __ movptr(rdi, Address(rax_argslot, 0)); |
jrose@1145 | 1024 | __ movptr(Address(rdx_newarg, 0), rdi); |
jrose@1145 | 1025 | __ addptr(rax_argslot, wordSize); |
jrose@1145 | 1026 | __ addptr(rdx_newarg, wordSize); |
jrose@1145 | 1027 | __ cmpptr(rdx_newarg, rbx_oldarg); |
twisti@1570 | 1028 | __ jccb(Assembler::less, loop); |
jrose@1145 | 1029 | |
jrose@1145 | 1030 | __ pop(rdi); // restore temp |
jrose@1145 | 1031 | |
jrose@1145 | 1032 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1033 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1034 | } |
jrose@1145 | 1035 | break; |
jrose@1145 | 1036 | |
jrose@1145 | 1037 | case _adapter_drop_args: |
jrose@1145 | 1038 | { |
jrose@1145 | 1039 | // 'argslot' is the position of the first argument to nuke |
jrose@1145 | 1040 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1041 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1042 | |
jrose@1145 | 1043 | __ push(rdi); // need a temp |
jrose@1145 | 1044 | // (must do previous push after argslot address is taken) |
jrose@1145 | 1045 | |
jrose@1145 | 1046 | // 'stack_move' is number of words to drop |
jrose@1145 | 1047 | Register rdi_stack_move = rdi; |
twisti@1728 | 1048 | __ movl2ptr(rdi_stack_move, rcx_amh_conversion); |
twisti@1728 | 1049 | __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 1050 | remove_arg_slots(_masm, rdi_stack_move, |
jrose@1145 | 1051 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1052 | |
jrose@1145 | 1053 | __ pop(rdi); // restore temp |
jrose@1145 | 1054 | |
jrose@1145 | 1055 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1056 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1057 | } |
jrose@1145 | 1058 | break; |
jrose@1145 | 1059 | |
jrose@1145 | 1060 | case _adapter_collect_args: |
jrose@1145 | 1061 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1062 | break; |
jrose@1145 | 1063 | |
jrose@1145 | 1064 | case _adapter_spread_args: |
jrose@1145 | 1065 | // handled completely by optimized cases |
jrose@1145 | 1066 | __ stop("init_AdapterMethodHandle should not issue this"); |
jrose@1145 | 1067 | break; |
jrose@1145 | 1068 | |
jrose@1145 | 1069 | case _adapter_opt_spread_0: |
jrose@1145 | 1070 | case _adapter_opt_spread_1: |
jrose@1145 | 1071 | case _adapter_opt_spread_more: |
jrose@1145 | 1072 | { |
jrose@1145 | 1073 | // spread an array out into a group of arguments |
twisti@1739 | 1074 | int length_constant = get_ek_adapter_opt_spread_info(ek); |
jrose@1145 | 1075 | |
jrose@1145 | 1076 | // find the address of the array argument |
jrose@1145 | 1077 | __ movl(rax_argslot, rcx_amh_vmargslot); |
jrose@1145 | 1078 | __ lea(rax_argslot, __ argument_address(rax_argslot)); |
jrose@1145 | 1079 | |
jrose@1145 | 1080 | // grab some temps |
jrose@1145 | 1081 | { __ push(rsi); __ push(rdi); } |
jrose@1145 | 1082 | // (preceding pushes must be done after argslot address is taken!) |
jrose@1145 | 1083 | #define UNPUSH_RSI_RDI \ |
jrose@1145 | 1084 | { __ pop(rdi); __ pop(rsi); } |
jrose@1145 | 1085 | |
jrose@1145 | 1086 | // arx_argslot points both to the array and to the first output arg |
jrose@1145 | 1087 | vmarg = Address(rax_argslot, 0); |
jrose@1145 | 1088 | |
jrose@1145 | 1089 | // Get the array value. |
jrose@1145 | 1090 | Register rsi_array = rsi; |
jrose@1145 | 1091 | Register rdx_array_klass = rdx_temp; |
jrose@1145 | 1092 | BasicType elem_type = T_OBJECT; |
jrose@1145 | 1093 | int length_offset = arrayOopDesc::length_offset_in_bytes(); |
jrose@1145 | 1094 | int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); |
jrose@1145 | 1095 | __ movptr(rsi_array, vmarg); |
jrose@1145 | 1096 | Label skip_array_check; |
jrose@1145 | 1097 | if (length_constant == 0) { |
jrose@1145 | 1098 | __ testptr(rsi_array, rsi_array); |
jrose@1145 | 1099 | __ jcc(Assembler::zero, skip_array_check); |
jrose@1145 | 1100 | } |
jrose@1145 | 1101 | __ null_check(rsi_array, oopDesc::klass_offset_in_bytes()); |
jrose@1145 | 1102 | __ load_klass(rdx_array_klass, rsi_array); |
jrose@1145 | 1103 | |
jrose@1145 | 1104 | // Check the array type. |
jrose@1145 | 1105 | Register rbx_klass = rbx_temp; |
jrose@1145 | 1106 | __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
jrose@1145 | 1107 | __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
jrose@1145 | 1108 | |
jrose@1145 | 1109 | Label ok_array_klass, bad_array_klass, bad_array_length; |
jrose@1145 | 1110 | __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi, ok_array_klass); |
jrose@1145 | 1111 | // If we get here, the type check failed! |
jrose@1145 | 1112 | __ jmp(bad_array_klass); |
jrose@1145 | 1113 | __ bind(ok_array_klass); |
jrose@1145 | 1114 | |
jrose@1145 | 1115 | // Check length. |
jrose@1145 | 1116 | if (length_constant >= 0) { |
jrose@1145 | 1117 | __ cmpl(Address(rsi_array, length_offset), length_constant); |
jrose@1145 | 1118 | } else { |
jrose@1145 | 1119 | Register rbx_vminfo = rbx_temp; |
jrose@1145 | 1120 | __ movl(rbx_vminfo, rcx_amh_conversion); |
jrose@1145 | 1121 | assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
jrose@1145 | 1122 | __ andl(rbx_vminfo, CONV_VMINFO_MASK); |
jrose@1145 | 1123 | __ cmpl(rbx_vminfo, Address(rsi_array, length_offset)); |
jrose@1145 | 1124 | } |
jrose@1145 | 1125 | __ jcc(Assembler::notEqual, bad_array_length); |
jrose@1145 | 1126 | |
jrose@1145 | 1127 | Register rdx_argslot_limit = rdx_temp; |
jrose@1145 | 1128 | |
jrose@1145 | 1129 | // Array length checks out. Now insert any required stack slots. |
jrose@1145 | 1130 | if (length_constant == -1) { |
jrose@1145 | 1131 | // Form a pointer to the end of the affected region. |
twisti@1861 | 1132 | __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize)); |
jrose@1145 | 1133 | // 'stack_move' is negative number of words to insert |
jrose@1145 | 1134 | Register rdi_stack_move = rdi; |
twisti@1728 | 1135 | __ movl2ptr(rdi_stack_move, rcx_amh_conversion); |
twisti@1728 | 1136 | __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
jrose@1145 | 1137 | Register rsi_temp = rsi_array; // spill this |
jrose@1145 | 1138 | insert_arg_slots(_masm, rdi_stack_move, -1, |
jrose@1145 | 1139 | rax_argslot, rbx_temp, rsi_temp); |
jrose@1145 | 1140 | // reload the array (since rsi was killed) |
jrose@1145 | 1141 | __ movptr(rsi_array, vmarg); |
jrose@1145 | 1142 | } else if (length_constant > 1) { |
jrose@1145 | 1143 | int arg_mask = 0; |
jrose@1145 | 1144 | int new_slots = (length_constant - 1); |
jrose@1145 | 1145 | for (int i = 0; i < new_slots; i++) { |
jrose@1145 | 1146 | arg_mask <<= 1; |
jrose@1145 | 1147 | arg_mask |= _INSERT_REF_MASK; |
jrose@1145 | 1148 | } |
jrose@1145 | 1149 | insert_arg_slots(_masm, new_slots * stack_move_unit(), arg_mask, |
jrose@1145 | 1150 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1151 | } else if (length_constant == 1) { |
jrose@1145 | 1152 | // no stack resizing required |
jrose@1145 | 1153 | } else if (length_constant == 0) { |
jrose@1145 | 1154 | remove_arg_slots(_masm, -stack_move_unit(), |
jrose@1145 | 1155 | rax_argslot, rbx_temp, rdx_temp); |
jrose@1145 | 1156 | } |
jrose@1145 | 1157 | |
jrose@1145 | 1158 | // Copy from the array to the new slots. |
jrose@1145 | 1159 | // Note: Stack change code preserves integrity of rax_argslot pointer. |
jrose@1145 | 1160 | // So even after slot insertions, rax_argslot still points to first argument. |
jrose@1145 | 1161 | if (length_constant == -1) { |
jrose@1145 | 1162 | // [rax_argslot, rdx_argslot_limit) is the area we are inserting into. |
jrose@1145 | 1163 | Register rsi_source = rsi_array; |
jrose@1145 | 1164 | __ lea(rsi_source, Address(rsi_array, elem0_offset)); |
jrose@1145 | 1165 | Label loop; |
jrose@1145 | 1166 | __ bind(loop); |
jrose@1145 | 1167 | __ movptr(rbx_temp, Address(rsi_source, 0)); |
jrose@1145 | 1168 | __ movptr(Address(rax_argslot, 0), rbx_temp); |
jrose@1145 | 1169 | __ addptr(rsi_source, type2aelembytes(elem_type)); |
twisti@1861 | 1170 | __ addptr(rax_argslot, Interpreter::stackElementSize); |
jrose@1145 | 1171 | __ cmpptr(rax_argslot, rdx_argslot_limit); |
twisti@1570 | 1172 | __ jccb(Assembler::less, loop); |
jrose@1145 | 1173 | } else if (length_constant == 0) { |
jrose@1145 | 1174 | __ bind(skip_array_check); |
jrose@1145 | 1175 | // nothing to copy |
jrose@1145 | 1176 | } else { |
jrose@1145 | 1177 | int elem_offset = elem0_offset; |
jrose@1145 | 1178 | int slot_offset = 0; |
jrose@1145 | 1179 | for (int index = 0; index < length_constant; index++) { |
jrose@1145 | 1180 | __ movptr(rbx_temp, Address(rsi_array, elem_offset)); |
jrose@1145 | 1181 | __ movptr(Address(rax_argslot, slot_offset), rbx_temp); |
jrose@1145 | 1182 | elem_offset += type2aelembytes(elem_type); |
twisti@1861 | 1183 | slot_offset += Interpreter::stackElementSize; |
jrose@1145 | 1184 | } |
jrose@1145 | 1185 | } |
jrose@1145 | 1186 | |
jrose@1145 | 1187 | // Arguments are spread. Move to next method handle. |
jrose@1145 | 1188 | UNPUSH_RSI_RDI; |
jrose@1145 | 1189 | __ movptr(rcx_recv, rcx_mh_vmtarget); |
jrose@1145 | 1190 | __ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
jrose@1145 | 1191 | |
jrose@1145 | 1192 | __ bind(bad_array_klass); |
jrose@1145 | 1193 | UNPUSH_RSI_RDI; |
jrose@1474 | 1194 | __ pushptr(Address(rdx_array_klass, java_mirror_offset)); // required type |
jrose@1474 | 1195 | __ pushptr(vmarg); // bad array |
jrose@1474 | 1196 | __ push((int)Bytecodes::_aaload); // who is complaining? |
jrose@1474 | 1197 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1198 | |
jrose@1145 | 1199 | __ bind(bad_array_length); |
jrose@1145 | 1200 | UNPUSH_RSI_RDI; |
jrose@1474 | 1201 | __ push(rcx_recv); // AMH requiring a certain length |
jrose@1474 | 1202 | __ pushptr(vmarg); // bad array |
jrose@1474 | 1203 | __ push((int)Bytecodes::_arraylength); // who is complaining? |
jrose@1474 | 1204 | __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
jrose@1145 | 1205 | |
jrose@1145 | 1206 | #undef UNPUSH_RSI_RDI |
jrose@1145 | 1207 | } |
jrose@1145 | 1208 | break; |
jrose@1145 | 1209 | |
jrose@1145 | 1210 | case _adapter_flyby: |
jrose@1145 | 1211 | case _adapter_ricochet: |
jrose@1145 | 1212 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1213 | break; |
jrose@1145 | 1214 | |
jrose@1145 | 1215 | default: ShouldNotReachHere(); |
jrose@1145 | 1216 | } |
jrose@1145 | 1217 | __ hlt(); |
jrose@1145 | 1218 | |
jrose@1145 | 1219 | address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); |
jrose@1145 | 1220 | __ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
jrose@1145 | 1221 | |
jrose@1145 | 1222 | init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); |
jrose@1145 | 1223 | } |