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1 /*
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2 * Copyright 1999-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 void pd_init() { /* nothing to do */ }
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26
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27 public:
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28 void try_allocate(
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29 Register obj, // result: pointer to object after successful allocation
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30 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
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31 int con_size_in_bytes, // object size in bytes if known at compile time
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32 Register t1, // temp register
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33 Register t2, // temp register
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34 Label& slow_case // continuation point if fast allocation fails
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35 );
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36
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37 void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
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38 void initialize_body(Register base, Register index);
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39
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40 // locking/unlocking
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41 void lock_object (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
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42 void unlock_object(Register Rmark, Register Roop, Register Rbox, Label& slow_case);
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43
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44 void initialize_object(
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45 Register obj, // result: pointer to object after successful allocation
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46 Register klass, // object klass
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47 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
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48 int con_size_in_bytes, // object size in bytes if known at compile time
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49 Register t1, // temp register
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50 Register t2 // temp register
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51 );
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52
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53 // allocation of fixed-size objects
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54 // (can also be used to allocate fixed-size arrays, by setting
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55 // hdr_size correctly and storing the array length afterwards)
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56 void allocate_object(
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57 Register obj, // result: pointer to object after successful allocation
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58 Register t1, // temp register
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59 Register t2, // temp register
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60 Register t3, // temp register
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61 int hdr_size, // object header size in words
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62 int obj_size, // object size in words
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63 Register klass, // object klass
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64 Label& slow_case // continuation point if fast allocation fails
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65 );
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66
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67 enum {
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68 max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
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69 };
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70
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71 // allocation of arrays
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72 void allocate_array(
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73 Register obj, // result: pointer to array after successful allocation
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74 Register len, // array length
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75 Register t1, // temp register
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76 Register t2, // temp register
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77 Register t3, // temp register
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78 int hdr_size, // object header size in words
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79 int elt_size, // element size in bytes
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80 Register klass, // object klass
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81 Label& slow_case // continuation point if fast allocation fails
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82 );
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83
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84 // invalidates registers in this window
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85 void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
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86 Register preserve1 = noreg, Register preserve2 = noreg);
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