gcc/config/rs6000/crtsavres.asm

   1 /*
   2  * Special support for eabi and SVR4
   3  *
   4  *   Copyright (C) 1995, 1996, 1998, 2000, 2001 Free Software Foundation, Inc.
   5  *   Written By Michael Meissner
   6  *   64-bit support written by David Edelsohn
   7  *
   8  * This file is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * In addition to the permissions in the GNU General Public License, the
  14  * Free Software Foundation gives you unlimited permission to link the
  15  * compiled version of this file with other programs, and to distribute
  16  * those programs without any restriction coming from the use of this
  17  * file.  (The General Public License restrictions do apply in other
  18  * respects; for example, they cover modification of the file, and
  19  * distribution when not linked into another program.)
  20  *
  21  * This file is distributed in the hope that it will be useful, but
  22  * WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  * General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; see the file COPYING.  If not, write to
  28  * the Free Software Foundation, 59 Temple Place - Suite 330,
  29  * Boston, MA 02111-1307, USA.
  30  *
  31  *    As a special exception, if you link this library with files
  32  *    compiled with GCC to produce an executable, this does not cause
  33  *    the resulting executable to be covered by the GNU General Public License.
  34  *    This exception does not however invalidate any other reasons why
  35  *    the executable file might be covered by the GNU General Public License.
  36  */
  37
  38 /* Do any initializations needed for the eabi environment */
  39
  40         .file   "crtsavres.asm"
  41         .section ".text"
  42         #include "ppc-asm.h"
  43
  44 /* On PowerPC64 Linux, these functions are provided by the linker.  */
  45 #ifndef __powerpc64__
  46
  47 /* Routines for saving floating point registers, called by the compiler.  */
  48 /* Called with r11 pointing to the stack header word of the caller of the */
  49 /* function, just beyond the end of the floating point save area.  */
  50
  51 FUNC_START(_savefpr_14) stfd    14,-144(11)     /* save fp registers */
  52 FUNC_START(_savefpr_15) stfd    15,-136(11)
  53 FUNC_START(_savefpr_16) stfd    16,-128(11)
  54 FUNC_START(_savefpr_17) stfd    17,-120(11)
  55 FUNC_START(_savefpr_18) stfd    18,-112(11)
  56 FUNC_START(_savefpr_19) stfd    19,-104(11)
  57 FUNC_START(_savefpr_20) stfd    20,-96(11)
  58 FUNC_START(_savefpr_21) stfd    21,-88(11)
  59 FUNC_START(_savefpr_22) stfd    22,-80(11)
  60 FUNC_START(_savefpr_23) stfd    23,-72(11)
  61 FUNC_START(_savefpr_24) stfd    24,-64(11)
  62 FUNC_START(_savefpr_25) stfd    25,-56(11)
  63 FUNC_START(_savefpr_26) stfd    26,-48(11)
  64 FUNC_START(_savefpr_27) stfd    27,-40(11)
  65 FUNC_START(_savefpr_28) stfd    28,-32(11)
  66 FUNC_START(_savefpr_29) stfd    29,-24(11)
  67 FUNC_START(_savefpr_30) stfd    30,-16(11)
  68 FUNC_START(_savefpr_31) stfd    31,-8(11)
  69                         blr
  70 FUNC_END(_savefpr_31)
  71 FUNC_END(_savefpr_30)
  72 FUNC_END(_savefpr_29)
  73 FUNC_END(_savefpr_28)
  74 FUNC_END(_savefpr_27)
  75 FUNC_END(_savefpr_26)
  76 FUNC_END(_savefpr_25)
  77 FUNC_END(_savefpr_24)
  78 FUNC_END(_savefpr_23)
  79 FUNC_END(_savefpr_22)
  80 FUNC_END(_savefpr_21)
  81 FUNC_END(_savefpr_20)
  82 FUNC_END(_savefpr_19)
  83 FUNC_END(_savefpr_18)
  84 FUNC_END(_savefpr_17)
  85 FUNC_END(_savefpr_16)
  86 FUNC_END(_savefpr_15)
  87 FUNC_END(_savefpr_14)
  88
  89 /* Routines for saving integer registers, called by the compiler.  */
  90 /* Called with r11 pointing to the stack header word of the caller of the */
  91 /* function, just beyond the end of the integer save area.  */
  92
  93 FUNC_START(_savegpr_14) stw     14,-72(11)      /* save gp registers */
  94 FUNC_START(_savegpr_15) stw     15,-68(11)
  95 FUNC_START(_savegpr_16) stw     16,-64(11)
  96 FUNC_START(_savegpr_17) stw     17,-60(11)
  97 FUNC_START(_savegpr_18) stw     18,-56(11)
  98 FUNC_START(_savegpr_19) stw     19,-52(11)
  99 FUNC_START(_savegpr_20) stw     20,-48(11)
 100 FUNC_START(_savegpr_21) stw     21,-44(11)
 101 FUNC_START(_savegpr_22) stw     22,-40(11)
 102 FUNC_START(_savegpr_23) stw     23,-36(11)
 103 FUNC_START(_savegpr_24) stw     24,-32(11)
 104 FUNC_START(_savegpr_25) stw     25,-28(11)
 105 FUNC_START(_savegpr_26) stw     26,-24(11)
 106 FUNC_START(_savegpr_27) stw     27,-20(11)
 107 FUNC_START(_savegpr_28) stw     28,-16(11)
 108 FUNC_START(_savegpr_29) stw     29,-12(11)
 109 FUNC_START(_savegpr_30) stw     30,-8(11)
 110 FUNC_START(_savegpr_31) stw     31,-4(11)
 111                         blr
 112 FUNC_END(_savegpr_31)
 113 FUNC_END(_savegpr_30)
 114 FUNC_END(_savegpr_29)
 115 FUNC_END(_savegpr_28)
 116 FUNC_END(_savegpr_27)
 117 FUNC_END(_savegpr_26)
 118 FUNC_END(_savegpr_25)
 119 FUNC_END(_savegpr_24)
 120 FUNC_END(_savegpr_23)
 121 FUNC_END(_savegpr_22)
 122 FUNC_END(_savegpr_21)
 123 FUNC_END(_savegpr_20)
 124 FUNC_END(_savegpr_19)
 125 FUNC_END(_savegpr_18)
 126 FUNC_END(_savegpr_17)
 127 FUNC_END(_savegpr_16)
 128 FUNC_END(_savegpr_15)
 129 FUNC_END(_savegpr_14)
 130
 131 /* Routines for restoring floating point registers, called by the compiler.  */
 132 /* Called with r11 pointing to the stack header word of the caller of the */
 133 /* function, just beyond the end of the floating point save area.  */
 134
 135 FUNC_START(_restfpr_14) lfd     14,-144(11)     /* restore fp registers */
 136 FUNC_START(_restfpr_15) lfd     15,-136(11)
 137 FUNC_START(_restfpr_16) lfd     16,-128(11)
 138 FUNC_START(_restfpr_17) lfd     17,-120(11)
 139 FUNC_START(_restfpr_18) lfd     18,-112(11)
 140 FUNC_START(_restfpr_19) lfd     19,-104(11)
 141 FUNC_START(_restfpr_20) lfd     20,-96(11)
 142 FUNC_START(_restfpr_21) lfd     21,-88(11)
 143 FUNC_START(_restfpr_22) lfd     22,-80(11)
 144 FUNC_START(_restfpr_23) lfd     23,-72(11)
 145 FUNC_START(_restfpr_24) lfd     24,-64(11)
 146 FUNC_START(_restfpr_25) lfd     25,-56(11)
 147 FUNC_START(_restfpr_26) lfd     26,-48(11)
 148 FUNC_START(_restfpr_27) lfd     27,-40(11)
 149 FUNC_START(_restfpr_28) lfd     28,-32(11)
 150 FUNC_START(_restfpr_29) lfd     29,-24(11)
 151 FUNC_START(_restfpr_30) lfd     30,-16(11)
 152 FUNC_START(_restfpr_31) lfd     31,-8(11)
 153                         blr
 154 FUNC_END(_restfpr_31)
 155 FUNC_END(_restfpr_30)
 156 FUNC_END(_restfpr_29)
 157 FUNC_END(_restfpr_28)
 158 FUNC_END(_restfpr_27)
 159 FUNC_END(_restfpr_26)
 160 FUNC_END(_restfpr_25)
 161 FUNC_END(_restfpr_24)
 162 FUNC_END(_restfpr_23)
 163 FUNC_END(_restfpr_22)
 164 FUNC_END(_restfpr_21)
 165 FUNC_END(_restfpr_20)
 166 FUNC_END(_restfpr_19)
 167 FUNC_END(_restfpr_18)
 168 FUNC_END(_restfpr_17)
 169 FUNC_END(_restfpr_16)
 170 FUNC_END(_restfpr_15)
 171 FUNC_END(_restfpr_14)
 172
 173 /* Routines for restoring integer registers, called by the compiler.  */
 174 /* Called with r11 pointing to the stack header word of the caller of the */
 175 /* function, just beyond the end of the integer restore area.  */
 176
 177 FUNC_START(_restgpr_14) lwz     14,-72(11)      /* restore gp registers */
 178 FUNC_START(_restgpr_15) lwz     15,-68(11)
 179 FUNC_START(_restgpr_16) lwz     16,-64(11)
 180 FUNC_START(_restgpr_17) lwz     17,-60(11)
 181 FUNC_START(_restgpr_18) lwz     18,-56(11)
 182 FUNC_START(_restgpr_19) lwz     19,-52(11)
 183 FUNC_START(_restgpr_20) lwz     20,-48(11)
 184 FUNC_START(_restgpr_21) lwz     21,-44(11)
 185 FUNC_START(_restgpr_22) lwz     22,-40(11)
 186 FUNC_START(_restgpr_23) lwz     23,-36(11)
 187 FUNC_START(_restgpr_24) lwz     24,-32(11)
 188 FUNC_START(_restgpr_25) lwz     25,-28(11)
 189 FUNC_START(_restgpr_26) lwz     26,-24(11)
 190 FUNC_START(_restgpr_27) lwz     27,-20(11)
 191 FUNC_START(_restgpr_28) lwz     28,-16(11)
 192 FUNC_START(_restgpr_29) lwz     29,-12(11)
 193 FUNC_START(_restgpr_30) lwz     30,-8(11)
 194 FUNC_START(_restgpr_31) lwz     31,-4(11)
 195                         blr
 196 FUNC_END(_restgpr_31)
 197 FUNC_END(_restgpr_30)
 198 FUNC_END(_restgpr_29)
 199 FUNC_END(_restgpr_28)
 200 FUNC_END(_restgpr_27)
 201 FUNC_END(_restgpr_26)
 202 FUNC_END(_restgpr_25)
 203 FUNC_END(_restgpr_24)
 204 FUNC_END(_restgpr_23)
 205 FUNC_END(_restgpr_22)
 206 FUNC_END(_restgpr_21)
 207 FUNC_END(_restgpr_20)
 208 FUNC_END(_restgpr_19)
 209 FUNC_END(_restgpr_18)
 210 FUNC_END(_restgpr_17)
 211 FUNC_END(_restgpr_16)
 212 FUNC_END(_restgpr_15)
 213 FUNC_END(_restgpr_14)
 214
 215 /* Routines for restoring floating point registers, called by the compiler.  */
 216 /* Called with r11 pointing to the stack header word of the caller of the */
 217 /* function, just beyond the end of the floating point save area.  */
 218 /* In addition to restoring the fp registers, it will return to the caller's */
 219 /* caller */
 220
 221 FUNC_START(_restfpr_14_x)       lfd     14,-144(11)     /* restore fp registers */
 222 FUNC_START(_restfpr_15_x)       lfd     15,-136(11)
 223 FUNC_START(_restfpr_16_x)       lfd     16,-128(11)
 224 FUNC_START(_restfpr_17_x)       lfd     17,-120(11)
 225 FUNC_START(_restfpr_18_x)       lfd     18,-112(11)
 226 FUNC_START(_restfpr_19_x)       lfd     19,-104(11)
 227 FUNC_START(_restfpr_20_x)       lfd     20,-96(11)
 228 FUNC_START(_restfpr_21_x)       lfd     21,-88(11)
 229 FUNC_START(_restfpr_22_x)       lfd     22,-80(11)
 230 FUNC_START(_restfpr_23_x)       lfd     23,-72(11)
 231 FUNC_START(_restfpr_24_x)       lfd     24,-64(11)
 232 FUNC_START(_restfpr_25_x)       lfd     25,-56(11)
 233 FUNC_START(_restfpr_26_x)       lfd     26,-48(11)
 234 FUNC_START(_restfpr_27_x)       lfd     27,-40(11)
 235 FUNC_START(_restfpr_28_x)       lfd     28,-32(11)
 236 FUNC_START(_restfpr_29_x)       lfd     29,-24(11)
 237 FUNC_START(_restfpr_30_x)       lfd     30,-16(11)
 238 FUNC_START(_restfpr_31_x)       lwz     0,4(11)
 239                                 lfd     31,-8(11)
 240                                 mtlr    0
 241                                 mr      1,11
 242                                 blr
 243 FUNC_END(_restfpr_31_x)
 244 FUNC_END(_restfpr_30_x)
 245 FUNC_END(_restfpr_29_x)
 246 FUNC_END(_restfpr_28_x)
 247 FUNC_END(_restfpr_27_x)
 248 FUNC_END(_restfpr_26_x)
 249 FUNC_END(_restfpr_25_x)
 250 FUNC_END(_restfpr_24_x)
 251 FUNC_END(_restfpr_23_x)
 252 FUNC_END(_restfpr_22_x)
 253 FUNC_END(_restfpr_21_x)
 254 FUNC_END(_restfpr_20_x)
 255 FUNC_END(_restfpr_19_x)
 256 FUNC_END(_restfpr_18_x)
 257 FUNC_END(_restfpr_17_x)
 258 FUNC_END(_restfpr_16_x)
 259 FUNC_END(_restfpr_15_x)
 260 FUNC_END(_restfpr_14_x)
 261
 262 /* Routines for restoring integer registers, called by the compiler.  */
 263 /* Called with r11 pointing to the stack header word of the caller of the */
 264 /* function, just beyond the end of the integer restore area.  */
 265
 266 FUNC_START(_restgpr_14_x)       lwz     14,-72(11)      /* restore gp registers */
 267 FUNC_START(_restgpr_15_x)       lwz     15,-68(11)
 268 FUNC_START(_restgpr_16_x)       lwz     16,-64(11)
 269 FUNC_START(_restgpr_17_x)       lwz     17,-60(11)
 270 FUNC_START(_restgpr_18_x)       lwz     18,-56(11)
 271 FUNC_START(_restgpr_19_x)       lwz     19,-52(11)
 272 FUNC_START(_restgpr_20_x)       lwz     20,-48(11)
 273 FUNC_START(_restgpr_21_x)       lwz     21,-44(11)
 274 FUNC_START(_restgpr_22_x)       lwz     22,-40(11)
 275 FUNC_START(_restgpr_23_x)       lwz     23,-36(11)
 276 FUNC_START(_restgpr_24_x)       lwz     24,-32(11)
 277 FUNC_START(_restgpr_25_x)       lwz     25,-28(11)
 278 FUNC_START(_restgpr_26_x)       lwz     26,-24(11)
 279 FUNC_START(_restgpr_27_x)       lwz     27,-20(11)
 280 FUNC_START(_restgpr_28_x)       lwz     28,-16(11)
 281 FUNC_START(_restgpr_29_x)       lwz     29,-12(11)
 282 FUNC_START(_restgpr_30_x)       lwz     30,-8(11)
 283 FUNC_START(_restgpr_31_x)       lwz     0,4(11)
 284                                 lwz     31,-4(11)
 285                                 mtlr    0
 286                                 mr      1,11
 287                                 blr
 288 FUNC_END(_restgpr_31_x)
 289 FUNC_END(_restgpr_30_x)
 290 FUNC_END(_restgpr_29_x)
 291 FUNC_END(_restgpr_28_x)
 292 FUNC_END(_restgpr_27_x)
 293 FUNC_END(_restgpr_26_x)
 294 FUNC_END(_restgpr_25_x)
 295 FUNC_END(_restgpr_24_x)
 296 FUNC_END(_restgpr_23_x)
 297 FUNC_END(_restgpr_22_x)
 298 FUNC_END(_restgpr_21_x)
 299 FUNC_END(_restgpr_20_x)
 300 FUNC_END(_restgpr_19_x)
 301 FUNC_END(_restgpr_18_x)
 302 FUNC_END(_restgpr_17_x)
 303 FUNC_END(_restgpr_16_x)
 304 FUNC_END(_restgpr_15_x)
 305 FUNC_END(_restgpr_14_x)
 306
 307 #endif