Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / arm / crtn.asm

diff --git a/gcc/config/arm/crtn.asm b/gcc/config/arm/crtn.asm
index a7f0e9e2c713326a0c63552b418ae0d9c8f2995a..006b7d5260a0ddce097c7bea6994bf0f41eefaf4 100644 (file)
--- 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
+# <http://www.gnu.org/licenses/>.
+
+/* 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