OSObjectAsm.s   [plain text]

/*
 * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */

#if __GNUC__ >= 3

;
; This function was generated by disassembling the 'OSObject::free(void)'
; function of the Panther7B7 kernel in gdb.
;
; Then add the 'li r4,3' flag taken fropm the Puma kernel 'OSObject::free'
;
    .text

    .align  5
    .globl  __ZN8OSObject4freeEv

__ZN8OSObject4freeEv:
    ; function prologue
    stw     r31,-4(r1)
    mflr    r0
    stw     r0,8(r1)
    mr      r31,r3
    stwu    r1,-80(r1)

    ; const OSMetaClass *meta = getMetaClass();
    lwz     r9,0(r3)
    lwz     r12,32(r9)
    mtctr   r12
    bctrl

    ; if (meta)
    ;   meta->instanceDestructed();
    cmpwi   r3,0
    beq     delete_this
    bl      __ZNK11OSMetaClass18instanceDestructedEv

delete_this:
    ; delete this;
    lwz     r9,0(r31)
    mr      r3,r31
    li      r4,0        ; Load up some sort of flags, for 2.95 destructors?
    lwz     r0,88(r1)
    addi    r1,r1,80
    lwz     r12,8(r9)
    mtlr    r0
    lwz     r31,-4(r1)
    mtctr   r12
    bctr

#endif /* __GNUC__ >= 3 */