crtsavres.S 6.0 KB

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  1. /*
  2. * Special support for eabi and SVR4
  3. *
  4. * Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
  5. * Copyright 2008 Freescale Semiconductor, Inc.
  6. * Written By Michael Meissner
  7. *
  8. * Based on gcc/config/rs6000/crtsavres.asm from gcc
  9. *
  10. * This file is free software; you can redistribute it and/or modify it
  11. * under the terms of the GNU General Public License as published by the
  12. * Free Software Foundation; either version 2, or (at your option) any
  13. * later version.
  14. *
  15. * In addition to the permissions in the GNU General Public License, the
  16. * Free Software Foundation gives you unlimited permission to link the
  17. * compiled version of this file with other programs, and to distribute
  18. * those programs without any restriction coming from the use of this
  19. * file. (The General Public License restrictions do apply in other
  20. * respects; for example, they cover modification of the file, and
  21. * distribution when not linked into another program.)
  22. *
  23. * This file is distributed in the hope that it will be useful, but
  24. * WITHOUT ANY WARRANTY; without even the implied warranty of
  25. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  26. * General Public License for more details.
  27. *
  28. * You should have received a copy of the GNU General Public License
  29. * along with this program; see the file COPYING. If not, write to
  30. * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  31. * Boston, MA 02110-1301, USA.
  32. *
  33. * As a special exception, if you link this library with files
  34. * compiled with GCC to produce an executable, this does not cause
  35. * the resulting executable to be covered by the GNU General Public License.
  36. * This exception does not however invalidate any other reasons why
  37. * the executable file might be covered by the GNU General Public License.
  38. */
  39. #ifdef __powerpc64__
  40. #error "On PPC64, FPR save/restore functions are provided by the linker."
  41. #endif
  42. .file "crtsavres.S"
  43. .section ".text"
  44. #define _GLOBAL(name) \
  45. .type name,@function; \
  46. .globl name; \
  47. name:
  48. /* Routines for saving integer registers, called by the compiler. */
  49. /* Called with r11 pointing to the stack header word of the caller of the */
  50. /* function, just beyond the end of the integer save area. */
  51. _GLOBAL(_savegpr_14)
  52. _GLOBAL(_save32gpr_14)
  53. stw 14,-72(11) /* save gp registers */
  54. _GLOBAL(_savegpr_15)
  55. _GLOBAL(_save32gpr_15)
  56. stw 15,-68(11)
  57. _GLOBAL(_savegpr_16)
  58. _GLOBAL(_save32gpr_16)
  59. stw 16,-64(11)
  60. _GLOBAL(_savegpr_17)
  61. _GLOBAL(_save32gpr_17)
  62. stw 17,-60(11)
  63. _GLOBAL(_savegpr_18)
  64. _GLOBAL(_save32gpr_18)
  65. stw 18,-56(11)
  66. _GLOBAL(_savegpr_19)
  67. _GLOBAL(_save32gpr_19)
  68. stw 19,-52(11)
  69. _GLOBAL(_savegpr_20)
  70. _GLOBAL(_save32gpr_20)
  71. stw 20,-48(11)
  72. _GLOBAL(_savegpr_21)
  73. _GLOBAL(_save32gpr_21)
  74. stw 21,-44(11)
  75. _GLOBAL(_savegpr_22)
  76. _GLOBAL(_save32gpr_22)
  77. stw 22,-40(11)
  78. _GLOBAL(_savegpr_23)
  79. _GLOBAL(_save32gpr_23)
  80. stw 23,-36(11)
  81. _GLOBAL(_savegpr_24)
  82. _GLOBAL(_save32gpr_24)
  83. stw 24,-32(11)
  84. _GLOBAL(_savegpr_25)
  85. _GLOBAL(_save32gpr_25)
  86. stw 25,-28(11)
  87. _GLOBAL(_savegpr_26)
  88. _GLOBAL(_save32gpr_26)
  89. stw 26,-24(11)
  90. _GLOBAL(_savegpr_27)
  91. _GLOBAL(_save32gpr_27)
  92. stw 27,-20(11)
  93. _GLOBAL(_savegpr_28)
  94. _GLOBAL(_save32gpr_28)
  95. stw 28,-16(11)
  96. _GLOBAL(_savegpr_29)
  97. _GLOBAL(_save32gpr_29)
  98. stw 29,-12(11)
  99. _GLOBAL(_savegpr_30)
  100. _GLOBAL(_save32gpr_30)
  101. stw 30,-8(11)
  102. _GLOBAL(_savegpr_31)
  103. _GLOBAL(_save32gpr_31)
  104. stw 31,-4(11)
  105. blr
  106. /* Routines for restoring integer registers, called by the compiler. */
  107. /* Called with r11 pointing to the stack header word of the caller of the */
  108. /* function, just beyond the end of the integer restore area. */
  109. _GLOBAL(_restgpr_14)
  110. _GLOBAL(_rest32gpr_14)
  111. lwz 14,-72(11) /* restore gp registers */
  112. _GLOBAL(_restgpr_15)
  113. _GLOBAL(_rest32gpr_15)
  114. lwz 15,-68(11)
  115. _GLOBAL(_restgpr_16)
  116. _GLOBAL(_rest32gpr_16)
  117. lwz 16,-64(11)
  118. _GLOBAL(_restgpr_17)
  119. _GLOBAL(_rest32gpr_17)
  120. lwz 17,-60(11)
  121. _GLOBAL(_restgpr_18)
  122. _GLOBAL(_rest32gpr_18)
  123. lwz 18,-56(11)
  124. _GLOBAL(_restgpr_19)
  125. _GLOBAL(_rest32gpr_19)
  126. lwz 19,-52(11)
  127. _GLOBAL(_restgpr_20)
  128. _GLOBAL(_rest32gpr_20)
  129. lwz 20,-48(11)
  130. _GLOBAL(_restgpr_21)
  131. _GLOBAL(_rest32gpr_21)
  132. lwz 21,-44(11)
  133. _GLOBAL(_restgpr_22)
  134. _GLOBAL(_rest32gpr_22)
  135. lwz 22,-40(11)
  136. _GLOBAL(_restgpr_23)
  137. _GLOBAL(_rest32gpr_23)
  138. lwz 23,-36(11)
  139. _GLOBAL(_restgpr_24)
  140. _GLOBAL(_rest32gpr_24)
  141. lwz 24,-32(11)
  142. _GLOBAL(_restgpr_25)
  143. _GLOBAL(_rest32gpr_25)
  144. lwz 25,-28(11)
  145. _GLOBAL(_restgpr_26)
  146. _GLOBAL(_rest32gpr_26)
  147. lwz 26,-24(11)
  148. _GLOBAL(_restgpr_27)
  149. _GLOBAL(_rest32gpr_27)
  150. lwz 27,-20(11)
  151. _GLOBAL(_restgpr_28)
  152. _GLOBAL(_rest32gpr_28)
  153. lwz 28,-16(11)
  154. _GLOBAL(_restgpr_29)
  155. _GLOBAL(_rest32gpr_29)
  156. lwz 29,-12(11)
  157. _GLOBAL(_restgpr_30)
  158. _GLOBAL(_rest32gpr_30)
  159. lwz 30,-8(11)
  160. _GLOBAL(_restgpr_31)
  161. _GLOBAL(_rest32gpr_31)
  162. lwz 31,-4(11)
  163. blr
  164. /* Routines for restoring integer registers, called by the compiler. */
  165. /* Called with r11 pointing to the stack header word of the caller of the */
  166. /* function, just beyond the end of the integer restore area. */
  167. _GLOBAL(_restgpr_14_x)
  168. _GLOBAL(_rest32gpr_14_x)
  169. lwz 14,-72(11) /* restore gp registers */
  170. _GLOBAL(_restgpr_15_x)
  171. _GLOBAL(_rest32gpr_15_x)
  172. lwz 15,-68(11)
  173. _GLOBAL(_restgpr_16_x)
  174. _GLOBAL(_rest32gpr_16_x)
  175. lwz 16,-64(11)
  176. _GLOBAL(_restgpr_17_x)
  177. _GLOBAL(_rest32gpr_17_x)
  178. lwz 17,-60(11)
  179. _GLOBAL(_restgpr_18_x)
  180. _GLOBAL(_rest32gpr_18_x)
  181. lwz 18,-56(11)
  182. _GLOBAL(_restgpr_19_x)
  183. _GLOBAL(_rest32gpr_19_x)
  184. lwz 19,-52(11)
  185. _GLOBAL(_restgpr_20_x)
  186. _GLOBAL(_rest32gpr_20_x)
  187. lwz 20,-48(11)
  188. _GLOBAL(_restgpr_21_x)
  189. _GLOBAL(_rest32gpr_21_x)
  190. lwz 21,-44(11)
  191. _GLOBAL(_restgpr_22_x)
  192. _GLOBAL(_rest32gpr_22_x)
  193. lwz 22,-40(11)
  194. _GLOBAL(_restgpr_23_x)
  195. _GLOBAL(_rest32gpr_23_x)
  196. lwz 23,-36(11)
  197. _GLOBAL(_restgpr_24_x)
  198. _GLOBAL(_rest32gpr_24_x)
  199. lwz 24,-32(11)
  200. _GLOBAL(_restgpr_25_x)
  201. _GLOBAL(_rest32gpr_25_x)
  202. lwz 25,-28(11)
  203. _GLOBAL(_restgpr_26_x)
  204. _GLOBAL(_rest32gpr_26_x)
  205. lwz 26,-24(11)
  206. _GLOBAL(_restgpr_27_x)
  207. _GLOBAL(_rest32gpr_27_x)
  208. lwz 27,-20(11)
  209. _GLOBAL(_restgpr_28_x)
  210. _GLOBAL(_rest32gpr_28_x)
  211. lwz 28,-16(11)
  212. _GLOBAL(_restgpr_29_x)
  213. _GLOBAL(_rest32gpr_29_x)
  214. lwz 29,-12(11)
  215. _GLOBAL(_restgpr_30_x)
  216. _GLOBAL(_rest32gpr_30_x)
  217. lwz 30,-8(11)
  218. _GLOBAL(_restgpr_31_x)
  219. _GLOBAL(_rest32gpr_31_x)
  220. lwz 0,4(11)
  221. lwz 31,-4(11)
  222. mtlr 0
  223. mr 1,11
  224. blr