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1 /*
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2 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
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3 *
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4 * This file is part of FFmpeg.
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5 *
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6 * FFmpeg is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
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8 * License as published by the Free Software Foundation; either
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9 * version 2.1 of the License, or (at your option) any later version.
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10 *
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11 * FFmpeg is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with FFmpeg; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 */
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20
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21 #include "config.h"
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22
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23 #ifdef __ELF__
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24 # define ELF
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25 #else
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26 # define ELF @
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27 #endif
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28
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29 .macro require8, val=1
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30 ELF .eabi_attribute 24, \val
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31 .endm
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32
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33 .macro preserve8, val=1
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34 ELF .eabi_attribute 25, \val
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35 .endm
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36
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37 .macro function name, export=0
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38 .macro endfunc
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39 ELF .size \name, . - \name
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40 .endfunc
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41 .purgem endfunc
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42 .endm
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43 .if \export
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44 .global EXTERN_ASM\name
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45 EXTERN_ASM\name:
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46 .endif
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47 ELF .type \name, %function
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48 .func \name
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49 \name:
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50 .endm
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51
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52 .macro movrel rd, val
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53 #if HAVE_ARMV6T2 && !CONFIG_PIC
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54 movw \rd, #:lower16:\val
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55 movt \rd, #:upper16:\val
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56 #else
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57 ldr \rd, =\val
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58 #endif
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59 .endm
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60
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61 #if HAVE_VFP_ARGS
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62 .eabi_attribute 28, 1
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63 # define VFP
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64 # define NOVFP @
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65 #else
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66 # define VFP @
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67 # define NOVFP
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68 #endif
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69
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70 #define GLUE(a, b) a ## b
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71 #define JOIN(a, b) GLUE(a, b)
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72 #define X(s) JOIN(EXTERN_ASM, s)
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