runtime/objc-rtp-sym.s

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 2004 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26   objc-rtp-sym.s
  27   Copyright 2004, Apple Computer, Inc.
  28   Author: Jim Laskey
  29
  30   This file is used to regenerate symbols for routines in the ObjC runtime pages.
  31
  32   Build this file with:
  33     cc objc-rtp-syms.c -c -o objc-rtp-syms.o.temp
  34     ld -seg1addr kRTPagesLo objc-rtp-syms.o.temp -r -o objc-rtp-syms.o
  35   and then use `-sectcreate __DATA __commpage objc-rtp-syms.o` when linking.
  36
  37   IMPORTANT - declarations need to be declared in address order.
  38 */
  39
  40 #undef  OBJC_ASM
  41 #define OBJC_ASM
  42 #include "objc-rtp.h"
  43
  44     .text
  45     .globl  _objc_kIgnore_rtp
  46     .org    kRTAddress_ignoredSelector-kRTPagesLo  // unnormalized with ld -seg1addr kRTPagesLo
  47 _objc_kIgnore_rtp:
  48     nop
  49
  50     // note that macro expansion does not work well with .org, had to go long hand - jml
  51
  52     .globl   _objc_assign_strongCast_rtp
  53     .org     kRTAddress_objc_assign_strongCast-kRTPagesLo // unnormalized with ld -seg1addr kRTPagesLo
  54 _objc_assign_strongCast_rtp:
  55     nop
  56
  57     .globl   _objc_assign_global_rtp
  58     .org     kRTAddress_objc_assign_global-kRTPagesLo // unnormalized with ld -seg1addr kRTPagesLo
  59 _objc_assign_global_rtp:
  60     nop
  61
  62     .globl   _objc_assign_ivar_rtp
  63     .org     kRTAddress_objc_assign_ivar-kRTPagesLo // unnormalized with ld -seg1addr kRTPagesLo
  64 _objc_assign_ivar_rtp:
  65     nop
  66
  67     .globl   _objc_msgSend_rtp
  68     .org     kRTAddress_objc_msgSend -kRTPagesLo // unnormalized with ld -seg1addr kRTPagesLo
  69 _objc_msgSend_rtp:
  70     nop
  71
  72     // Extra symbol at the end of the RTP area.
  73     // This pacifies gdb and other debugging tools.
  74     .globl   _objc_msgSend_rtp_exit
  75     .org     kRTPagesHi - kRTPagesLo // unnormalized with ld -seg1adr kRTPagesLo
  76
  77     .data
  78     .long   0