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 40 #ifdef __powerpc64__ 41 #error "On PPC64, FPR save/restore functions are provided by the linker." 42 #endif 43 44 .file "crtsavres.S" 45 .section ".text" 46 47 #define _GLOBAL(name) \ 48 .type name,@function; \ 49 .globl name; \ 50 name: 51 52 /* Routines for saving integer registers, called by the compiler. */ 53 /* Called with r11 pointing to the stack header word of the caller of the */ 54 /* function, just beyond the end of the integer save area. */ 55 56 _GLOBAL(_savegpr_14) 57 _GLOBAL(_save32gpr_14) 58 stw 14,-72(11) /* save gp registers */ 59 _GLOBAL(_savegpr_15) 60 _GLOBAL(_save32gpr_15) 61 stw 15,-68(11) 62 _GLOBAL(_savegpr_16) 63 _GLOBAL(_save32gpr_16) 64 stw 16,-64(11) 65 _GLOBAL(_savegpr_17) 66 _GLOBAL(_save32gpr_17) 67 stw 17,-60(11) 68 _GLOBAL(_savegpr_18) 69 _GLOBAL(_save32gpr_18) 70 stw 18,-56(11) 71 _GLOBAL(_savegpr_19) 72 _GLOBAL(_save32gpr_19) 73 stw 19,-52(11) 74 _GLOBAL(_savegpr_20) 75 _GLOBAL(_save32gpr_20) 76 stw 20,-48(11) 77 _GLOBAL(_savegpr_21) 78 _GLOBAL(_save32gpr_21) 79 stw 21,-44(11) 80 _GLOBAL(_savegpr_22) 81 _GLOBAL(_save32gpr_22) 82 stw 22,-40(11) 83 _GLOBAL(_savegpr_23) 84 _GLOBAL(_save32gpr_23) 85 stw 23,-36(11) 86 _GLOBAL(_savegpr_24) 87 _GLOBAL(_save32gpr_24) 88 stw 24,-32(11) 89 _GLOBAL(_savegpr_25) 90 _GLOBAL(_save32gpr_25) 91 stw 25,-28(11) 92 _GLOBAL(_savegpr_26) 93 _GLOBAL(_save32gpr_26) 94 stw 26,-24(11) 95 _GLOBAL(_savegpr_27) 96 _GLOBAL(_save32gpr_27) 97 stw 27,-20(11) 98 _GLOBAL(_savegpr_28) 99 _GLOBAL(_save32gpr_28) 100 stw 28,-16(11) 101 _GLOBAL(_savegpr_29) 102 _GLOBAL(_save32gpr_29) 103 stw 29,-12(11) 104 _GLOBAL(_savegpr_30) 105 _GLOBAL(_save32gpr_30) 106 stw 30,-8(11) 107 _GLOBAL(_savegpr_31) 108 _GLOBAL(_save32gpr_31) 109 stw 31,-4(11) 110 blr 111 112 /* Routines for restoring integer registers, called by the compiler. */ 113 /* Called with r11 pointing to the stack header word of the caller of the */ 114 /* function, just beyond the end of the integer restore area. */ 115 116 _GLOBAL(_restgpr_14) 117 _GLOBAL(_rest32gpr_14) 118 lwz 14,-72(11) /* restore gp registers */ 119 _GLOBAL(_restgpr_15) 120 _GLOBAL(_rest32gpr_15) 121 lwz 15,-68(11) 122 _GLOBAL(_restgpr_16) 123 _GLOBAL(_rest32gpr_16) 124 lwz 16,-64(11) 125 _GLOBAL(_restgpr_17) 126 _GLOBAL(_rest32gpr_17) 127 lwz 17,-60(11) 128 _GLOBAL(_restgpr_18) 129 _GLOBAL(_rest32gpr_18) 130 lwz 18,-56(11) 131 _GLOBAL(_restgpr_19) 132 _GLOBAL(_rest32gpr_19) 133 lwz 19,-52(11) 134 _GLOBAL(_restgpr_20) 135 _GLOBAL(_rest32gpr_20) 136 lwz 20,-48(11) 137 _GLOBAL(_restgpr_21) 138 _GLOBAL(_rest32gpr_21) 139 lwz 21,-44(11) 140 _GLOBAL(_restgpr_22) 141 _GLOBAL(_rest32gpr_22) 142 lwz 22,-40(11) 143 _GLOBAL(_restgpr_23) 144 _GLOBAL(_rest32gpr_23) 145 lwz 23,-36(11) 146 _GLOBAL(_restgpr_24) 147 _GLOBAL(_rest32gpr_24) 148 lwz 24,-32(11) 149 _GLOBAL(_restgpr_25) 150 _GLOBAL(_rest32gpr_25) 151 lwz 25,-28(11) 152 _GLOBAL(_restgpr_26) 153 _GLOBAL(_rest32gpr_26) 154 lwz 26,-24(11) 155 _GLOBAL(_restgpr_27) 156 _GLOBAL(_rest32gpr_27) 157 lwz 27,-20(11) 158 _GLOBAL(_restgpr_28) 159 _GLOBAL(_rest32gpr_28) 160 lwz 28,-16(11) 161 _GLOBAL(_restgpr_29) 162 _GLOBAL(_rest32gpr_29) 163 lwz 29,-12(11) 164 _GLOBAL(_restgpr_30) 165 _GLOBAL(_rest32gpr_30) 166 lwz 30,-8(11) 167 _GLOBAL(_restgpr_31) 168 _GLOBAL(_rest32gpr_31) 169 lwz 31,-4(11) 170 blr 171 172 /* Routines for restoring integer registers, called by the compiler. */ 173 /* Called with r11 pointing to the stack header word of the caller of the */ 174 /* function, just beyond the end of the integer restore area. */ 175 176 _GLOBAL(_restgpr_14_x) 177 _GLOBAL(_rest32gpr_14_x) 178 lwz 14,-72(11) /* restore gp registers */ 179 _GLOBAL(_restgpr_15_x) 180 _GLOBAL(_rest32gpr_15_x) 181 lwz 15,-68(11) 182 _GLOBAL(_restgpr_16_x) 183 _GLOBAL(_rest32gpr_16_x) 184 lwz 16,-64(11) 185 _GLOBAL(_restgpr_17_x) 186 _GLOBAL(_rest32gpr_17_x) 187 lwz 17,-60(11) 188 _GLOBAL(_restgpr_18_x) 189 _GLOBAL(_rest32gpr_18_x) 190 lwz 18,-56(11) 191 _GLOBAL(_restgpr_19_x) 192 _GLOBAL(_rest32gpr_19_x) 193 lwz 19,-52(11) 194 _GLOBAL(_restgpr_20_x) 195 _GLOBAL(_rest32gpr_20_x) 196 lwz 20,-48(11) 197 _GLOBAL(_restgpr_21_x) 198 _GLOBAL(_rest32gpr_21_x) 199 lwz 21,-44(11) 200 _GLOBAL(_restgpr_22_x) 201 _GLOBAL(_rest32gpr_22_x) 202 lwz 22,-40(11) 203 _GLOBAL(_restgpr_23_x) 204 _GLOBAL(_rest32gpr_23_x) 205 lwz 23,-36(11) 206 _GLOBAL(_restgpr_24_x) 207 _GLOBAL(_rest32gpr_24_x) 208 lwz 24,-32(11) 209 _GLOBAL(_restgpr_25_x) 210 _GLOBAL(_rest32gpr_25_x) 211 lwz 25,-28(11) 212 _GLOBAL(_restgpr_26_x) 213 _GLOBAL(_rest32gpr_26_x) 214 lwz 26,-24(11) 215 _GLOBAL(_restgpr_27_x) 216 _GLOBAL(_rest32gpr_27_x) 217 lwz 27,-20(11) 218 _GLOBAL(_restgpr_28_x) 219 _GLOBAL(_rest32gpr_28_x) 220 lwz 28,-16(11) 221 _GLOBAL(_restgpr_29_x) 222 _GLOBAL(_rest32gpr_29_x) 223 lwz 29,-12(11) 224 _GLOBAL(_restgpr_30_x) 225 _GLOBAL(_rest32gpr_30_x) 226 lwz 30,-8(11) 227 _GLOBAL(_restgpr_31_x) 228 _GLOBAL(_rest32gpr_31_x) 229 lwz 0,4(11) 230 lwz 31,-4(11) 231 mtlr 0 232 mr 1,11 233 blr 234