Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/arm/crtn.asm @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | a06113de4d67 |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 # Copyright (C) 2001, 2004, 2008, 2009 Free Software Foundation, Inc. |
| 2 # Written By Nick Clifton | |
| 3 # | |
| 4 # This file is free software; you can redistribute it and/or modify it | |
| 5 # under the terms of the GNU General Public License as published by the | |
| 6 # Free Software Foundation; either version 3, or (at your option) any | |
| 7 # later version. | |
| 8 # | |
| 9 # This file is distributed in the hope that it will be useful, but | |
| 10 # WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 # General Public License for more details. | |
| 13 # | |
| 14 # Under Section 7 of GPL version 3, you are granted additional | |
| 15 # permissions described in the GCC Runtime Library Exception, version | |
| 16 # 3.1, as published by the Free Software Foundation. | |
| 17 # | |
| 18 # You should have received a copy of the GNU General Public License and | |
| 19 # a copy of the GCC Runtime Library Exception along with this program; | |
| 20 # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 21 # <http://www.gnu.org/licenses/>. | |
| 22 | |
| 23 /* An executable stack is *not* required for these functions. */ | |
| 24 #if defined(__ELF__) && defined(__linux__) | |
| 25 .section .note.GNU-stack,"",%progbits | |
| 26 .previous | |
| 27 #endif | |
| 28 | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
29 #ifdef __ARM_EABI__ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
30 /* Some attributes that are common to all routines in this file. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
31 /* Tag_ABI_align_needed: This code does not require 8-byte |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
32 alignment from the caller. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
33 /* .eabi_attribute 24, 0 -- default setting. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
34 /* Tag_ABI_align_preserved: This code preserves 8-byte |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
35 alignment in any callee. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
36 .eabi_attribute 25, 1 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
37 #endif /* __ARM_EABI__ */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
38 |
| 0 | 39 # This file just makes sure that the .fini and .init sections do in |
| 40 # fact return. Users may put any desired instructions in those sections. | |
| 41 # This file is the last thing linked into any executable. | |
| 42 | |
| 43 # Note - this macro is complemented by the FUNC_START macro | |
| 44 # in crti.asm. If you change this macro you must also change | |
| 45 # that macro match. | |
| 46 # | |
| 47 # Note - we do not try any fancy optimizations of the return | |
| 48 # sequences here, it is just not worth it. Instead keep things | |
| 49 # simple. Restore all the save resgisters, including the link | |
| 50 # register and then perform the correct function return instruction. | |
| 51 # We also save/restore r3 to ensure stack alignment. | |
| 52 .macro FUNC_END | |
| 53 #ifdef __thumb__ | |
| 54 .thumb | |
| 55 | |
| 56 pop {r3, r4, r5, r6, r7} | |
| 57 pop {r3} | |
| 58 mov lr, r3 | |
| 59 #else | |
| 60 .arm | |
| 61 | |
| 62 sub sp, fp, #40 | |
| 63 ldmfd sp, {r4, r5, r6, r7, r8, r9, sl, fp, sp, lr} | |
| 64 #endif | |
| 65 | |
| 66 #if defined __THUMB_INTERWORK__ || defined __thumb__ | |
| 67 bx lr | |
| 68 #else | |
| 69 mov pc, lr | |
| 70 #endif | |
| 71 .endm | |
| 72 | |
| 73 | |
| 74 .section ".init" | |
| 75 ;; | |
| 76 FUNC_END | |
| 77 | |
| 78 .section ".fini" | |
| 79 ;; | |
| 80 FUNC_END | |
| 81 | |
| 82 # end of crtn.asm |