1 /*
2 * Copyright (c) 1999, 2005, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 void pd_init() { /* nothing to do */ }
26
27 public:
28 void try_allocate(
29 Register obj, // result: pointer to object after successful allocation
30 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
31 int con_size_in_bytes, // object size in bytes if known at compile time
32 Register t1, // temp register
33 Register t2, // temp register
34 Label& slow_case // continuation point if fast allocation fails
35 );
36
37 void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
38 void initialize_body(Register base, Register index);
39
40 // locking/unlocking
41 void lock_object (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
42 void unlock_object(Register Rmark, Register Roop, Register Rbox, Label& slow_case);
43
44 void initialize_object(
45 Register obj, // result: pointer to object after successful allocation
46 Register klass, // object klass
47 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
48 int con_size_in_bytes, // object size in bytes if known at compile time
49 Register t1, // temp register
50 Register t2 // temp register
51 );
52
53 // allocation of fixed-size objects
54 // (can also be used to allocate fixed-size arrays, by setting
55 // hdr_size correctly and storing the array length afterwards)
56 void allocate_object(
57 Register obj, // result: pointer to object after successful allocation
58 Register t1, // temp register
59 Register t2, // temp register
60 Register t3, // temp register
61 int hdr_size, // object header size in words
62 int obj_size, // object size in words
63 Register klass, // object klass
64 Label& slow_case // continuation point if fast allocation fails
65 );
66
67 enum {
68 max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
69 };
70
71 // allocation of arrays
72 void allocate_array(
73 Register obj, // result: pointer to array after successful allocation
74 Register len, // array length
75 Register t1, // temp register
76 Register t2, // temp register
77 Register t3, // temp register
78 int hdr_size, // object header size in words
79 int elt_size, // element size in bytes
80 Register klass, // object klass
81 Label& slow_case // continuation point if fast allocation fails
82 );
83
84 // invalidates registers in this window
85 void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
86 Register preserve1 = noreg, Register preserve2 = noreg);