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, 51 Franklin Street, Fifth Floor, 27# Boston, MA 02110-1301, 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 107