gcc/config/rs6000/sol-ci.asm

   1 # crti.s for sysv4
   2
   3 #   Copyright (C) 1996 Free Software Foundation, Inc.
   4 #   Written By Michael Meissner
   5 #
   6 # This file is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License as published by the
   8 # Free Software Foundation; either version 2, or (at your option) any
   9 # later version.
  10 #
  11 # In addition to the permissions in the GNU General Public License, the
  12 # Free Software Foundation gives you unlimited permission to link the
  13 # compiled version of this file with other programs, and to distribute
  14 # those programs without any restriction coming from the use of this
  15 # file.  (The General Public License restrictions do apply in other
  16 # respects; for example, they cover modification of the file, and
  17 # distribution when not linked into another program.)
  18 #
  19 # This file is distributed in the hope that it will be useful, but
  20 # WITHOUT ANY WARRANTY; without even the implied warranty of
  21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22 # General Public License for more details.
  23 #
  24 # You should have received a copy of the GNU General Public License
  25 # along with this program; see the file COPYING.  If not, write to
  26 # the Free Software Foundation, 59 Temple Place - Suite 330,
  27 # Boston, MA 02111-1307, USA.
  28 #
  29 #    As a special exception, if you link this library with files
  30 #    compiled with GCC to produce an executable, this does not cause
  31 #    the resulting executable to be covered by the GNU General Public License.
  32 #    This exception does not however invalidate any other reasons why
  33 #    the executable file might be covered by the GNU General Public License.
  34 #
  35
  36 # This file just supplies labeled starting points for the .got* and other
  37 # special sections.  It is linked in first before other modules.
  38
  39         .file   "scrti.s"
  40         .ident  "GNU C scrti.s"
  41
  42 #ifndef __powerpc64__
  43 # Start of .text
  44         .section ".text"
  45         .globl  _ex_text0
  46 _ex_text0:
  47
  48 # Exception range
  49         .section ".exception_ranges","aw"
  50         .globl  _ex_range0
  51 _ex_range0:
  52
  53 # List of C++ constructors
  54         .section ".ctors","aw"
  55         .globl  __CTOR_LIST__
  56         .type   __CTOR_LIST__,@object
  57 __CTOR_LIST__:
  58
  59 # List of C++ destructors
  60         .section ".dtors","aw"
  61         .globl  __DTOR_LIST__
  62         .type   __DTOR_LIST__,@object
  63 __DTOR_LIST__:
  64
  65 # Head of _init function used for static constructors
  66         .section ".init","ax"
  67         .align 2
  68         .globl _init
  69         .type _init,@function
  70 _init:  stwu    %r1,-16(%r1)
  71         mflr    %r0
  72         stw     %r31,12(%r1)
  73         stw     %r0,16(%r1)
  74
  75         bl      _GLOBAL_OFFSET_TABLE_-4 # get the GOT address
  76         mflr    %r31
  77
  78 #       lwz     %r3,_ex_shared0@got(%r31)
  79 #       lwz     %r4,-8(%r3)             # _ex_register or 0
  80 #       cmpi    %cr0,%r4,0
  81 #       beq     .Lno_reg
  82 #       mtlr    %r4
  83 #       blrl
  84 #.Lno_reg:
  85
  86 # Head of _fini function used for static destructors
  87         .section ".fini","ax"
  88         .align 2
  89         .globl _fini
  90         .type _fini,@function
  91 _fini:  stwu    %r1,-16(%r1)
  92         mflr    %r0
  93         stw     %r31,12(%r1)
  94         stw     %r0,16(%r1)
  95
  96         bl      _GLOBAL_OFFSET_TABLE_-4 # get the GOT address
  97         mflr    %r31
  98
  99 # _environ and its evil twin environ, pointing to the environment
 100         .section ".sdata","aw"
 101         .align 2
 102         .globl _environ
 103         .space 4
 104         .weak   environ
 105         .set    environ,_environ
 106 #endif