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comparison src/cpu/sparc/vm/methodHandles_sparc.cpp @ 710:e5b0439ef4ae

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6655638: dynamic languages need method handles Summary: initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.) Reviewed-by: kvn, twisti, never
author jrose
date Wed, 08 Apr 2009 10:56:49 -0700
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children c640000b7cc1
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709:1d037ecd7960 710:e5b0439ef4ae
1 /*
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 #include "incls/_precompiled.incl"
26 #include "incls/_methodHandles_sparc.cpp.incl"
27
28 #define __ _masm->
29
30 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm,
31 address interpreted_entry) {
32 __ align(wordSize);
33 address target = __ pc() + sizeof(Data);
34 while (__ pc() < target) {
35 __ nop();
36 __ align(wordSize);
37 }
38
39 MethodHandleEntry* me = (MethodHandleEntry*) __ pc();
40 me->set_end_address(__ pc()); // set a temporary end_address
41 me->set_from_interpreted_entry(interpreted_entry);
42 me->set_type_checking_entry(NULL);
43
44 return (address) me;
45 }
46
47 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm,
48 address start_addr) {
49 MethodHandleEntry* me = (MethodHandleEntry*) start_addr;
50 assert(me->end_address() == start_addr, "valid ME");
51
52 // Fill in the real end_address:
53 __ align(wordSize);
54 me->set_end_address(__ pc());
55
56 return me;
57 }
58
59
60 // Code generation
61 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
62 ShouldNotReachHere(); //NYI, 6815692
63 return NULL;
64 }
65
66 // Generate an "entry" field for a method handle.
67 // This determines how the method handle will respond to calls.
68 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) {
69 ShouldNotReachHere(); //NYI, 6815692
70 }