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  1. /*
  2.  * Copyright (c) 2009 Loren Merritt
  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.  
  21. #include "config.h"
  22.  
  23. #define GLUE(a, b) a ## b
  24. #define JOIN(a, b) GLUE(a, b)
  25. #define X(s) JOIN(EXTERN_ASM, s)
  26.  
  27. #if ARCH_PPC64
  28.  
  29. #define PTR  .quad
  30. #define lp   ld
  31. #define lpx  ldx
  32. #define stp  std
  33. #define stpu stdu
  34. #define PS   8
  35. #define L(s) JOIN(., s)
  36.  
  37. .macro extfunc name
  38.     .global X(\name)
  39.     .section .opd, "aw"
  40. X(\name):
  41.     .quad L(\name), .TOC.@tocbase, 0
  42.     .previous
  43.     .type X(\name), STT_FUNC
  44. L(\name):
  45. .endm
  46.  
  47. .macro movrel rd, sym, gp
  48.     ld      \rd, \sym@got(r2)
  49. .endm
  50.  
  51. .macro get_got rd
  52. .endm
  53.  
  54. #else /* ARCH_PPC64 */
  55.  
  56. #define PTR  .int
  57. #define lp   lwz
  58. #define lpx  lwzx
  59. #define stp  stw
  60. #define stpu stwu
  61. #define PS   4
  62. #define L(s) s
  63.  
  64. .macro extfunc name
  65.     .global X(\name)
  66.     .type   X(\name), STT_FUNC
  67. X(\name):
  68. \name:
  69. .endm
  70.  
  71. .macro movrel rd, sym, gp
  72. #if CONFIG_PIC
  73.     lwz     \rd, \sym@got(\gp)
  74. #else
  75.     lis     \rd, \sym@ha
  76.     la      \rd, \sym@l(\rd)
  77. #endif
  78. .endm
  79.  
  80. .macro get_got rd
  81. #if CONFIG_PIC
  82.     bcl     20, 31, .Lgot\@
  83. .Lgot\@:
  84.     mflr    \rd
  85.     addis   \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@ha
  86.     addi    \rd, \rd, _GLOBAL_OFFSET_TABLE_ - .Lgot\@@l
  87. #endif
  88. .endm
  89.  
  90. #endif /* ARCH_PPC64 */
  91.  
  92. #if HAVE_IBM_ASM
  93.  
  94. .macro DEFINE_REG n
  95.     .equiv r\n, \n
  96.     .equiv f\n, \n
  97.     .equiv v\n, \n
  98. .endm
  99.  
  100. DEFINE_REG 0
  101. DEFINE_REG 1
  102. DEFINE_REG 2
  103. DEFINE_REG 3
  104. DEFINE_REG 4
  105. DEFINE_REG 5
  106. DEFINE_REG 6
  107. DEFINE_REG 7
  108. DEFINE_REG 8
  109. DEFINE_REG 9
  110. DEFINE_REG 10
  111. DEFINE_REG 11
  112. DEFINE_REG 12
  113. DEFINE_REG 13
  114. DEFINE_REG 14
  115. DEFINE_REG 15
  116. DEFINE_REG 16
  117. DEFINE_REG 17
  118. DEFINE_REG 18
  119. DEFINE_REG 19
  120. DEFINE_REG 20
  121. DEFINE_REG 21
  122. DEFINE_REG 22
  123. DEFINE_REG 23
  124. DEFINE_REG 24
  125. DEFINE_REG 25
  126. DEFINE_REG 26
  127. DEFINE_REG 27
  128. DEFINE_REG 28
  129. DEFINE_REG 29
  130. DEFINE_REG 30
  131. DEFINE_REG 31
  132.  
  133. #endif /* HAVE_IBM_ASM */
  134.