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);