X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=gcc%2Fconfig%2Farm%2Fcrtn.asm;fp=gcc%2Fconfig%2Farm%2Fcrtn.asm;h=006b7d5260a0ddce097c7bea6994bf0f41eefaf4;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=a7f0e9e2c713326a0c63552b418ae0d9c8f2995a;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gcc/config/arm/crtn.asm b/gcc/config/arm/crtn.asm index a7f0e9e2..006b7d52 100644 --- a/gcc/config/arm/crtn.asm +++ b/gcc/config/arm/crtn.asm @@ -1,75 +1,66 @@ -# Copyright (C) 2001 Free Software Foundation, Inc. +# Copyright (C) 2001, 2004, 2008, 2009 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 +# Free Software Foundation; either version 3, 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, 59 Temple Place - Suite 330, -# Boston, MA 02111-1307, 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. +# Under Section 7 of GPL version 3, you are granted additional +# permissions described in the GCC Runtime Library Exception, version +# 3.1, as published by the Free Software Foundation. # +# You should have received a copy of the GNU General Public License and +# a copy of the GCC Runtime Library Exception along with this program; +# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +# . + +/* 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 complimented by the FUNC_START macro + # 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 optimisations of the return + # 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 {r4, r5, r6, r7} + pop {r3, r4, r5, r6, r7} pop {r3} mov lr, r3 #else .arm - ldmdb fp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr} + 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 -#ifdef __APCS_26__ - movs pc, lr #else mov pc, lr #endif -#endif .endm - .file "crtn.asm" - .section ".init" ;; FUNC_END