runtime/objc-rtp-sym.s

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