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1.1 ! root 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: * 64 bit additions from reading the PPC elf64abi document. ! 10: * ! 11: * This file is free software; you can redistribute it and/or modify it ! 12: * under the terms of the GNU General Public License as published by the ! 13: * Free Software Foundation; either version 2, or (at your option) any ! 14: * later version. ! 15: * ! 16: * In addition to the permissions in the GNU General Public License, the ! 17: * Free Software Foundation gives you unlimited permission to link the ! 18: * compiled version of this file with other programs, and to distribute ! 19: * those programs without any restriction coming from the use of this ! 20: * file. (The General Public License restrictions do apply in other ! 21: * respects; for example, they cover modification of the file, and ! 22: * distribution when not linked into another program.) ! 23: * ! 24: * This file is distributed in the hope that it will be useful, but ! 25: * WITHOUT ANY WARRANTY; without even the implied warranty of ! 26: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ! 27: * General Public License for more details. ! 28: * ! 29: * You should have received a copy of the GNU General Public License ! 30: * along with this program; see the file COPYING. If not, write to ! 31: * the Free Software Foundation, 51 Franklin Street, Fifth Floor, ! 32: * Boston, MA 02110-1301, USA. ! 33: * ! 34: * As a special exception, if you link this library with files ! 35: * compiled with GCC to produce an executable, this does not cause ! 36: * the resulting executable to be covered by the GNU General Public License. ! 37: * This exception does not however invalidate any other reasons why ! 38: * the executable file might be covered by the GNU General Public License. ! 39: */ ! 40: ! 41: /* taken from Linux arch/powerpc/lib/crtsavres.S */ ! 42: ! 43: /* arch/powerpc/include/asm/ppc_asm.h */ ! 44: #ifdef CONFIG_PPC64 ! 45: ! 46: #define XGLUE(a,b) a##b ! 47: #define GLUE(a,b) XGLUE(a,b) ! 48: ! 49: #define _GLOBAL(name) \ ! 50: .section ".text"; \ ! 51: .align 2 ; \ ! 52: .globl name; \ ! 53: .globl GLUE(.,name); \ ! 54: .section ".opd","aw"; \ ! 55: name: \ ! 56: .quad GLUE(.,name); \ ! 57: .quad .TOC.@tocbase; \ ! 58: .quad 0; \ ! 59: .previous; \ ! 60: .type GLUE(.,name),@function; \ ! 61: GLUE(.,name): ! 62: ! 63: #else /* 32-bit */ ! 64: ! 65: /* include/linux/stringify.h */ ! 66: ! 67: /* Indirect stringification. Doing two levels allows the parameter to be a ! 68: * macro itself. For example, compile with -DFOO=bar, __stringify(FOO) ! 69: * converts to "bar". ! 70: */ ! 71: ! 72: #define __stringify_1(x...) #x ! 73: #define __stringify(x...) __stringify_1(x) ! 74: ! 75: /* arch/powerpc/include/asm/ppc_asm.h continues */ ! 76: ! 77: #define _GLOBAL(n) \ ! 78: .text; \ ! 79: .stabs __stringify(n:F-1),N_FUN,0,0,n;\ ! 80: .globl n; \ ! 81: n: ! 82: ! 83: /* some stab codes */ ! 84: #define N_FUN 36 ! 85: ! 86: #endif ! 87: ! 88: /* arch/powerpc/lib/crtsavres.S continues */ ! 89: ! 90: .file "crtsavres.S" ! 91: .section ".text" ! 92: ! 93: #ifndef CONFIG_PPC64 ! 94: ! 95: /* Routines for saving integer registers, called by the compiler. */ ! 96: /* Called with r11 pointing to the stack header word of the caller of the */ ! 97: /* function, just beyond the end of the integer save area. */ ! 98: ! 99: _GLOBAL(_savegpr_14) ! 100: _GLOBAL(_save32gpr_14) ! 101: stw 14,-72(11) /* save gp registers */ ! 102: _GLOBAL(_savegpr_15) ! 103: _GLOBAL(_save32gpr_15) ! 104: stw 15,-68(11) ! 105: _GLOBAL(_savegpr_16) ! 106: _GLOBAL(_save32gpr_16) ! 107: stw 16,-64(11) ! 108: _GLOBAL(_savegpr_17) ! 109: _GLOBAL(_save32gpr_17) ! 110: stw 17,-60(11) ! 111: _GLOBAL(_savegpr_18) ! 112: _GLOBAL(_save32gpr_18) ! 113: stw 18,-56(11) ! 114: _GLOBAL(_savegpr_19) ! 115: _GLOBAL(_save32gpr_19) ! 116: stw 19,-52(11) ! 117: _GLOBAL(_savegpr_20) ! 118: _GLOBAL(_save32gpr_20) ! 119: stw 20,-48(11) ! 120: _GLOBAL(_savegpr_21) ! 121: _GLOBAL(_save32gpr_21) ! 122: stw 21,-44(11) ! 123: _GLOBAL(_savegpr_22) ! 124: _GLOBAL(_save32gpr_22) ! 125: stw 22,-40(11) ! 126: _GLOBAL(_savegpr_23) ! 127: _GLOBAL(_save32gpr_23) ! 128: stw 23,-36(11) ! 129: _GLOBAL(_savegpr_24) ! 130: _GLOBAL(_save32gpr_24) ! 131: stw 24,-32(11) ! 132: _GLOBAL(_savegpr_25) ! 133: _GLOBAL(_save32gpr_25) ! 134: stw 25,-28(11) ! 135: _GLOBAL(_savegpr_26) ! 136: _GLOBAL(_save32gpr_26) ! 137: stw 26,-24(11) ! 138: _GLOBAL(_savegpr_27) ! 139: _GLOBAL(_save32gpr_27) ! 140: stw 27,-20(11) ! 141: _GLOBAL(_savegpr_28) ! 142: _GLOBAL(_save32gpr_28) ! 143: stw 28,-16(11) ! 144: _GLOBAL(_savegpr_29) ! 145: _GLOBAL(_save32gpr_29) ! 146: stw 29,-12(11) ! 147: _GLOBAL(_savegpr_30) ! 148: _GLOBAL(_save32gpr_30) ! 149: stw 30,-8(11) ! 150: _GLOBAL(_savegpr_31) ! 151: _GLOBAL(_save32gpr_31) ! 152: stw 31,-4(11) ! 153: blr ! 154: ! 155: /* Routines for restoring integer registers, called by the compiler. */ ! 156: /* Called with r11 pointing to the stack header word of the caller of the */ ! 157: /* function, just beyond the end of the integer restore area. */ ! 158: ! 159: _GLOBAL(_restgpr_14) ! 160: _GLOBAL(_rest32gpr_14) ! 161: lwz 14,-72(11) /* restore gp registers */ ! 162: _GLOBAL(_restgpr_15) ! 163: _GLOBAL(_rest32gpr_15) ! 164: lwz 15,-68(11) ! 165: _GLOBAL(_restgpr_16) ! 166: _GLOBAL(_rest32gpr_16) ! 167: lwz 16,-64(11) ! 168: _GLOBAL(_restgpr_17) ! 169: _GLOBAL(_rest32gpr_17) ! 170: lwz 17,-60(11) ! 171: _GLOBAL(_restgpr_18) ! 172: _GLOBAL(_rest32gpr_18) ! 173: lwz 18,-56(11) ! 174: _GLOBAL(_restgpr_19) ! 175: _GLOBAL(_rest32gpr_19) ! 176: lwz 19,-52(11) ! 177: _GLOBAL(_restgpr_20) ! 178: _GLOBAL(_rest32gpr_20) ! 179: lwz 20,-48(11) ! 180: _GLOBAL(_restgpr_21) ! 181: _GLOBAL(_rest32gpr_21) ! 182: lwz 21,-44(11) ! 183: _GLOBAL(_restgpr_22) ! 184: _GLOBAL(_rest32gpr_22) ! 185: lwz 22,-40(11) ! 186: _GLOBAL(_restgpr_23) ! 187: _GLOBAL(_rest32gpr_23) ! 188: lwz 23,-36(11) ! 189: _GLOBAL(_restgpr_24) ! 190: _GLOBAL(_rest32gpr_24) ! 191: lwz 24,-32(11) ! 192: _GLOBAL(_restgpr_25) ! 193: _GLOBAL(_rest32gpr_25) ! 194: lwz 25,-28(11) ! 195: _GLOBAL(_restgpr_26) ! 196: _GLOBAL(_rest32gpr_26) ! 197: lwz 26,-24(11) ! 198: _GLOBAL(_restgpr_27) ! 199: _GLOBAL(_rest32gpr_27) ! 200: lwz 27,-20(11) ! 201: _GLOBAL(_restgpr_28) ! 202: _GLOBAL(_rest32gpr_28) ! 203: lwz 28,-16(11) ! 204: _GLOBAL(_restgpr_29) ! 205: _GLOBAL(_rest32gpr_29) ! 206: lwz 29,-12(11) ! 207: _GLOBAL(_restgpr_30) ! 208: _GLOBAL(_rest32gpr_30) ! 209: lwz 30,-8(11) ! 210: _GLOBAL(_restgpr_31) ! 211: _GLOBAL(_rest32gpr_31) ! 212: lwz 31,-4(11) ! 213: blr ! 214: ! 215: /* Routines for restoring integer 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 integer restore area. */ ! 218: ! 219: _GLOBAL(_restgpr_14_x) ! 220: _GLOBAL(_rest32gpr_14_x) ! 221: lwz 14,-72(11) /* restore gp registers */ ! 222: _GLOBAL(_restgpr_15_x) ! 223: _GLOBAL(_rest32gpr_15_x) ! 224: lwz 15,-68(11) ! 225: _GLOBAL(_restgpr_16_x) ! 226: _GLOBAL(_rest32gpr_16_x) ! 227: lwz 16,-64(11) ! 228: _GLOBAL(_restgpr_17_x) ! 229: _GLOBAL(_rest32gpr_17_x) ! 230: lwz 17,-60(11) ! 231: _GLOBAL(_restgpr_18_x) ! 232: _GLOBAL(_rest32gpr_18_x) ! 233: lwz 18,-56(11) ! 234: _GLOBAL(_restgpr_19_x) ! 235: _GLOBAL(_rest32gpr_19_x) ! 236: lwz 19,-52(11) ! 237: _GLOBAL(_restgpr_20_x) ! 238: _GLOBAL(_rest32gpr_20_x) ! 239: lwz 20,-48(11) ! 240: _GLOBAL(_restgpr_21_x) ! 241: _GLOBAL(_rest32gpr_21_x) ! 242: lwz 21,-44(11) ! 243: _GLOBAL(_restgpr_22_x) ! 244: _GLOBAL(_rest32gpr_22_x) ! 245: lwz 22,-40(11) ! 246: _GLOBAL(_restgpr_23_x) ! 247: _GLOBAL(_rest32gpr_23_x) ! 248: lwz 23,-36(11) ! 249: _GLOBAL(_restgpr_24_x) ! 250: _GLOBAL(_rest32gpr_24_x) ! 251: lwz 24,-32(11) ! 252: _GLOBAL(_restgpr_25_x) ! 253: _GLOBAL(_rest32gpr_25_x) ! 254: lwz 25,-28(11) ! 255: _GLOBAL(_restgpr_26_x) ! 256: _GLOBAL(_rest32gpr_26_x) ! 257: lwz 26,-24(11) ! 258: _GLOBAL(_restgpr_27_x) ! 259: _GLOBAL(_rest32gpr_27_x) ! 260: lwz 27,-20(11) ! 261: _GLOBAL(_restgpr_28_x) ! 262: _GLOBAL(_rest32gpr_28_x) ! 263: lwz 28,-16(11) ! 264: _GLOBAL(_restgpr_29_x) ! 265: _GLOBAL(_rest32gpr_29_x) ! 266: lwz 29,-12(11) ! 267: _GLOBAL(_restgpr_30_x) ! 268: _GLOBAL(_rest32gpr_30_x) ! 269: lwz 30,-8(11) ! 270: _GLOBAL(_restgpr_31_x) ! 271: _GLOBAL(_rest32gpr_31_x) ! 272: lwz 0,4(11) ! 273: lwz 31,-4(11) ! 274: mtlr 0 ! 275: mr 1,11 ! 276: blr ! 277: ! 278: #else /* CONFIG_PPC64 */ ! 279: ! 280: .globl _savegpr0_14 ! 281: _savegpr0_14: ! 282: std r14,-144(r1) ! 283: .globl _savegpr0_15 ! 284: _savegpr0_15: ! 285: std r15,-136(r1) ! 286: .globl _savegpr0_16 ! 287: _savegpr0_16: ! 288: std r16,-128(r1) ! 289: .globl _savegpr0_17 ! 290: _savegpr0_17: ! 291: std r17,-120(r1) ! 292: .globl _savegpr0_18 ! 293: _savegpr0_18: ! 294: std r18,-112(r1) ! 295: .globl _savegpr0_19 ! 296: _savegpr0_19: ! 297: std r19,-104(r1) ! 298: .globl _savegpr0_20 ! 299: _savegpr0_20: ! 300: std r20,-96(r1) ! 301: .globl _savegpr0_21 ! 302: _savegpr0_21: ! 303: std r21,-88(r1) ! 304: .globl _savegpr0_22 ! 305: _savegpr0_22: ! 306: std r22,-80(r1) ! 307: .globl _savegpr0_23 ! 308: _savegpr0_23: ! 309: std r23,-72(r1) ! 310: .globl _savegpr0_24 ! 311: _savegpr0_24: ! 312: std r24,-64(r1) ! 313: .globl _savegpr0_25 ! 314: _savegpr0_25: ! 315: std r25,-56(r1) ! 316: .globl _savegpr0_26 ! 317: _savegpr0_26: ! 318: std r26,-48(r1) ! 319: .globl _savegpr0_27 ! 320: _savegpr0_27: ! 321: std r27,-40(r1) ! 322: .globl _savegpr0_28 ! 323: _savegpr0_28: ! 324: std r28,-32(r1) ! 325: .globl _savegpr0_29 ! 326: _savegpr0_29: ! 327: std r29,-24(r1) ! 328: .globl _savegpr0_30 ! 329: _savegpr0_30: ! 330: std r30,-16(r1) ! 331: .globl _savegpr0_31 ! 332: _savegpr0_31: ! 333: std r31,-8(r1) ! 334: std r0,16(r1) ! 335: blr ! 336: ! 337: .globl _restgpr0_14 ! 338: _restgpr0_14: ! 339: ld r14,-144(r1) ! 340: .globl _restgpr0_15 ! 341: _restgpr0_15: ! 342: ld r15,-136(r1) ! 343: .globl _restgpr0_16 ! 344: _restgpr0_16: ! 345: ld r16,-128(r1) ! 346: .globl _restgpr0_17 ! 347: _restgpr0_17: ! 348: ld r17,-120(r1) ! 349: .globl _restgpr0_18 ! 350: _restgpr0_18: ! 351: ld r18,-112(r1) ! 352: .globl _restgpr0_19 ! 353: _restgpr0_19: ! 354: ld r19,-104(r1) ! 355: .globl _restgpr0_20 ! 356: _restgpr0_20: ! 357: ld r20,-96(r1) ! 358: .globl _restgpr0_21 ! 359: _restgpr0_21: ! 360: ld r21,-88(r1) ! 361: .globl _restgpr0_22 ! 362: _restgpr0_22: ! 363: ld r22,-80(r1) ! 364: .globl _restgpr0_23 ! 365: _restgpr0_23: ! 366: ld r23,-72(r1) ! 367: .globl _restgpr0_24 ! 368: _restgpr0_24: ! 369: ld r24,-64(r1) ! 370: .globl _restgpr0_25 ! 371: _restgpr0_25: ! 372: ld r25,-56(r1) ! 373: .globl _restgpr0_26 ! 374: _restgpr0_26: ! 375: ld r26,-48(r1) ! 376: .globl _restgpr0_27 ! 377: _restgpr0_27: ! 378: ld r27,-40(r1) ! 379: .globl _restgpr0_28 ! 380: _restgpr0_28: ! 381: ld r28,-32(r1) ! 382: .globl _restgpr0_29 ! 383: _restgpr0_29: ! 384: ld r0,16(r1) ! 385: ld r29,-24(r1) ! 386: mtlr r0 ! 387: ld r30,-16(r1) ! 388: ld r31,-8(r1) ! 389: blr ! 390: ! 391: .globl _restgpr0_30 ! 392: _restgpr0_30: ! 393: ld r30,-16(r1) ! 394: .globl _restgpr0_31 ! 395: _restgpr0_31: ! 396: ld r0,16(r1) ! 397: ld r31,-8(r1) ! 398: mtlr r0 ! 399: blr ! 400: ! 401: #endif /* CONFIG_PPC64 */
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