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