duke@435: /*
duke@435:  * Copyright 1999-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435:   void pd_init() { /* nothing to do */ }
duke@435: 
duke@435:  public:
duke@435:    void try_allocate(
duke@435:     Register obj,                      // result: pointer to object after successful allocation
duke@435:     Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
duke@435:     int      con_size_in_bytes,        // object size in bytes if   known at compile time
duke@435:     Register t1,                       // temp register
duke@435:     Register t2,                       // temp register
duke@435:     Label&   slow_case                 // continuation point if fast allocation fails
duke@435:   );
duke@435: 
duke@435:   void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
duke@435:   void initialize_body(Register base, Register index);
duke@435: 
duke@435:   // locking/unlocking
duke@435:   void lock_object  (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
duke@435:   void unlock_object(Register Rmark, Register Roop, Register Rbox,                    Label& slow_case);
duke@435: 
duke@435:   void initialize_object(
duke@435:     Register obj,                      // result: pointer to object after successful allocation
duke@435:     Register klass,                    // object klass
duke@435:     Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
duke@435:     int      con_size_in_bytes,        // object size in bytes if   known at compile time
duke@435:     Register t1,                       // temp register
duke@435:     Register t2                        // temp register
duke@435:   );
duke@435: 
duke@435:   // allocation of fixed-size objects
duke@435:   // (can also be used to allocate fixed-size arrays, by setting
duke@435:   // hdr_size correctly and storing the array length afterwards)
duke@435:   void allocate_object(
duke@435:     Register obj,                      // result: pointer to object after successful allocation
duke@435:     Register t1,                       // temp register
duke@435:     Register t2,                       // temp register
duke@435:     Register t3,                       // temp register
duke@435:     int      hdr_size,                 // object header size in words
duke@435:     int      obj_size,                 // object size in words
duke@435:     Register klass,                    // object klass
duke@435:     Label&   slow_case                 // continuation point if fast allocation fails
duke@435:   );
duke@435: 
duke@435:   enum {
duke@435:     max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
duke@435:   };
duke@435: 
duke@435:   // allocation of arrays
duke@435:   void allocate_array(
duke@435:     Register obj,                      // result: pointer to array after successful allocation
duke@435:     Register len,                      // array length
duke@435:     Register t1,                       // temp register
duke@435:     Register t2,                       // temp register
duke@435:     Register t3,                       // temp register
duke@435:     int      hdr_size,                 // object header size in words
duke@435:     int      elt_size,                 // element size in bytes
duke@435:     Register klass,                    // object klass
duke@435:     Label&   slow_case                 // continuation point if fast allocation fails
duke@435:   );
duke@435: 
duke@435:   // invalidates registers in this window
duke@435:   void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
duke@435:                             Register preserve1 = noreg, Register preserve2 = noreg);