Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/methodHandles_x86.cpp
src/cpu/x86/vm/methodHandles_x86.cpp
- changeset 2436
- d810e9a3fc33
- parent 2411
- 8d0b933dda2d
- child 2565
- 28bf941f445e
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| 2435:78e248949382 | 2436:d810e9a3fc33 |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 388 //------------------------------------------------------------------------------ | 388 //------------------------------------------------------------------------------ |
| 389 // MethodHandles::generate_method_handle_stub | 389 // MethodHandles::generate_method_handle_stub |
| 390 // | 390 // |
| 391 // Generate an "entry" field for a method handle. | 391 // Generate an "entry" field for a method handle. |
| 392 // This determines how the method handle will respond to calls. | 392 // This determines how the method handle will respond to calls. |
| 393 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek, TRAPS) { | 393 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
| 394 // Here is the register state during an interpreted call, | 394 // Here is the register state during an interpreted call, |
| 395 // as set up by generate_method_handle_interpreter_entry(): | 395 // as set up by generate_method_handle_interpreter_entry(): |
| 396 // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) | 396 // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) |
| 397 // - rcx: receiver method handle | 397 // - rcx: receiver method handle |
| 398 // - rax: method handle type (only used by the check_mtype entry point) | 398 // - rax: method handle type (only used by the check_mtype entry point) |
| 449 { | 449 { |
| 450 // Not a real MH entry, but rather shared code for raising an | 450 // Not a real MH entry, but rather shared code for raising an |
| 451 // exception. Since we use a C2I adapter to set up the | 451 // exception. Since we use a C2I adapter to set up the |
| 452 // interpreter state, arguments are expected in compiler | 452 // interpreter state, arguments are expected in compiler |
| 453 // argument registers. | 453 // argument registers. |
| 454 methodHandle mh(raise_exception_method()); | 454 assert(raise_exception_method(), "must be set"); |
| 455 address c2i_entry = methodOopDesc::make_adapters(mh, CHECK); | 455 address c2i_entry = raise_exception_method()->get_c2i_entry(); |
| 456 assert(c2i_entry, "method must be linked"); | |
| 456 | 457 |
| 457 const Register rdi_pc = rax; | 458 const Register rdi_pc = rax; |
| 458 __ pop(rdi_pc); // caller PC | 459 __ pop(rdi_pc); // caller PC |
| 459 __ mov(rsp, saved_last_sp); // cut the stack back to where the caller started | 460 __ mov(rsp, saved_last_sp); // cut the stack back to where the caller started |
| 460 | 461 |
