libgcc/config/rs6000/crtresxgpr.S

   1 /*
   2  * Special support for eabi and SVR4
   3  *
   4  *   Copyright (C) 1995-2021 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 3, or (at your option) any
  11  * later version.
  12  *
  13  * This file is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * Under Section 7 of GPL version 3, you are granted additional
  19  * permissions described in the GCC Runtime Library Exception, version
  20  * 3.1, as published by the Free Software Foundation.
  21  *
  22  * You should have received a copy of the GNU General Public License and
  23  * a copy of the GCC Runtime Library Exception along with this program;
  24  * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25  * <http://www.gnu.org/licenses/>.
  26  */
  27
  28 /* Do any initializations needed for the eabi environment */
  29
  30         .section ".text"
  31         #include "ppc-asm.h"
  32
  33 /* On PowerPC64 Linux, these functions are provided by the linker.  */
  34 #ifndef __powerpc64__
  35
  36 /* Routines for restoring integer registers, called by the compiler.  */
  37 /* Called with r11 pointing to the stack header word of the caller of the */
  38 /* function, just beyond the end of the integer restore area.  */
  39
  40 CFI_STARTPROC
  41 CFI_DEF_CFA_REGISTER (11)
  42 CFI_OFFSET (65, 4)
  43 CFI_OFFSET (14, -72)
  44 CFI_OFFSET (15, -68)
  45 CFI_OFFSET (16, -64)
  46 CFI_OFFSET (17, -60)
  47 CFI_OFFSET (18, -56)
  48 CFI_OFFSET (19, -52)
  49 CFI_OFFSET (20, -48)
  50 CFI_OFFSET (21, -44)
  51 CFI_OFFSET (22, -40)
  52 CFI_OFFSET (23, -36)
  53 CFI_OFFSET (24, -32)
  54 CFI_OFFSET (25, -28)
  55 CFI_OFFSET (26, -24)
  56 CFI_OFFSET (27, -20)
  57 CFI_OFFSET (28, -16)
  58 CFI_OFFSET (29, -12)
  59 CFI_OFFSET (30, -8)
  60 CFI_OFFSET (31, -4)
  61 HIDDEN_FUNC(_restgpr_14_x)      lwz     14,-72(11)      /* restore gp registers */
  62 CFI_RESTORE (14)
  63 HIDDEN_FUNC(_restgpr_15_x)      lwz     15,-68(11)
  64 CFI_RESTORE (15)
  65 HIDDEN_FUNC(_restgpr_16_x)      lwz     16,-64(11)
  66 CFI_RESTORE (16)
  67 HIDDEN_FUNC(_restgpr_17_x)      lwz     17,-60(11)
  68 CFI_RESTORE (17)
  69 HIDDEN_FUNC(_restgpr_18_x)      lwz     18,-56(11)
  70 CFI_RESTORE (18)
  71 HIDDEN_FUNC(_restgpr_19_x)      lwz     19,-52(11)
  72 CFI_RESTORE (19)
  73 HIDDEN_FUNC(_restgpr_20_x)      lwz     20,-48(11)
  74 CFI_RESTORE (20)
  75 HIDDEN_FUNC(_restgpr_21_x)      lwz     21,-44(11)
  76 CFI_RESTORE (21)
  77 HIDDEN_FUNC(_restgpr_22_x)      lwz     22,-40(11)
  78 CFI_RESTORE (22)
  79 HIDDEN_FUNC(_restgpr_23_x)      lwz     23,-36(11)
  80 CFI_RESTORE (23)
  81 HIDDEN_FUNC(_restgpr_24_x)      lwz     24,-32(11)
  82 CFI_RESTORE (24)
  83 HIDDEN_FUNC(_restgpr_25_x)      lwz     25,-28(11)
  84 CFI_RESTORE (25)
  85 HIDDEN_FUNC(_restgpr_26_x)      lwz     26,-24(11)
  86 CFI_RESTORE (26)
  87 HIDDEN_FUNC(_restgpr_27_x)      lwz     27,-20(11)
  88 CFI_RESTORE (27)
  89 HIDDEN_FUNC(_restgpr_28_x)      lwz     28,-16(11)
  90 CFI_RESTORE (28)
  91 HIDDEN_FUNC(_restgpr_29_x)      lwz     29,-12(11)
  92 CFI_RESTORE (29)
  93 HIDDEN_FUNC(_restgpr_30_x)      lwz     30,-8(11)
  94 CFI_RESTORE (30)
  95 HIDDEN_FUNC(_restgpr_31_x)      lwz     0,4(11)
  96                                 lwz     31,-4(11)
  97 CFI_RESTORE (31)
  98                                 mtlr    0
  99 CFI_RESTORE (65)
 100                                 mr      1,11
 101 CFI_DEF_CFA_REGISTER (1)
 102                                 blr
 103 FUNC_END(_restgpr_31_x)
 104 FUNC_END(_restgpr_30_x)
 105 FUNC_END(_restgpr_29_x)
 106 FUNC_END(_restgpr_28_x)
 107 FUNC_END(_restgpr_27_x)
 108 FUNC_END(_restgpr_26_x)
 109 FUNC_END(_restgpr_25_x)
 110 FUNC_END(_restgpr_24_x)
 111 FUNC_END(_restgpr_23_x)
 112 FUNC_END(_restgpr_22_x)
 113 FUNC_END(_restgpr_21_x)
 114 FUNC_END(_restgpr_20_x)
 115 FUNC_END(_restgpr_19_x)
 116 FUNC_END(_restgpr_18_x)
 117 FUNC_END(_restgpr_17_x)
 118 FUNC_END(_restgpr_16_x)
 119 FUNC_END(_restgpr_15_x)
 120 FUNC_END(_restgpr_14_x)
 121 CFI_ENDPROC
 122
 123 #endif