# Copyright (C) 2001, 2004 Free Software Foundation, Inc. # Written By Nick Clifton # # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 2, or (at your option) any # later version. # # In addition to the permissions in the GNU General Public License, the # Free Software Foundation gives you unlimited permission to link the # compiled version of this file with other programs, and to distribute # those programs without any restriction coming from the use of this # file. (The General Public License restrictions do apply in other # respects; for example, they cover modification of the file, and # distribution when not linked into another program.) # # This file is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; see the file COPYING. If not, write to # the Free Software Foundation, 51 Franklin Street, Fifth Floor, # Boston, MA 02110-1301, USA. # # As a special exception, if you link this library with files # compiled with GCC to produce an executable, this does not cause # the resulting executable to be covered by the GNU General Public License. # This exception does not however invalidate any other reasons why # the executable file might be covered by the GNU General Public License. # /* An executable stack is *not* required for these functions. */ #if defined(__ELF__) && defined(__linux__) .section .note.GNU-stack,"",%progbits .previous #endif # This file just makes sure that the .fini and .init sections do in # fact return. Users may put any desired instructions in those sections. # This file is the last thing linked into any executable. # Note - this macro is complemented by the FUNC_START macro # in crti.asm. If you change this macro you must also change # that macro match. # # Note - we do not try any fancy optimizations of the return # sequences here, it is just not worth it. Instead keep things # simple. Restore all the save resgisters, including the link # register and then perform the correct function return instruction. # We also save/restore r3 to ensure stack alignment. .macro FUNC_END #ifdef __thumb__ .thumb pop {r3, r4, r5, r6, r7} pop {r3} mov lr, r3 #else .arm sub sp, fp, #40 ldmfd sp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr} #endif #if defined __THUMB_INTERWORK__ || defined __thumb__ bx lr #else mov pc, lr #endif .endm .file "crtn.asm" .section ".init" ;; FUNC_END .section ".fini" ;; FUNC_END # end of crtn.asm