libgcc/config/rs6000/crtresxfpr.S

   1 /*
   2  * Special support for eabi and SVR4
   3  *
   4  *   Copyright (C) 1995-2018 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 floating point 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 floating point save area.  */
  39 /* In addition to restoring the fp registers, it will return to the caller's */
  40 /* caller */
  41
  42 CFI_STARTPROC
  43 CFI_DEF_CFA_REGISTER (11)
  44 CFI_OFFSET (65, 4)
  45 CFI_OFFSET (46, -144)
  46 CFI_OFFSET (47, -136)
  47 CFI_OFFSET (48, -128)
  48 CFI_OFFSET (49, -120)
  49 CFI_OFFSET (50, -112)
  50 CFI_OFFSET (51, -104)
  51 CFI_OFFSET (52, -96)
  52 CFI_OFFSET (53, -88)
  53 CFI_OFFSET (54, -80)
  54 CFI_OFFSET (55, -72)
  55 CFI_OFFSET (56, -64)
  56 CFI_OFFSET (57, -56)
  57 CFI_OFFSET (58, -48)
  58 CFI_OFFSET (59, -40)
  59 CFI_OFFSET (60, -32)
  60 CFI_OFFSET (61, -24)
  61 CFI_OFFSET (62, -16)
  62 CFI_OFFSET (63, -8)
  63 HIDDEN_FUNC(_restfpr_14_x)      lfd     14,-144(11)     /* restore fp registers */
  64 CFI_RESTORE (46)
  65 HIDDEN_FUNC(_restfpr_15_x)      lfd     15,-136(11)
  66 CFI_RESTORE (47)
  67 HIDDEN_FUNC(_restfpr_16_x)      lfd     16,-128(11)
  68 CFI_RESTORE (48)
  69 HIDDEN_FUNC(_restfpr_17_x)      lfd     17,-120(11)
  70 CFI_RESTORE (49)
  71 HIDDEN_FUNC(_restfpr_18_x)      lfd     18,-112(11)
  72 CFI_RESTORE (50)
  73 HIDDEN_FUNC(_restfpr_19_x)      lfd     19,-104(11)
  74 CFI_RESTORE (51)
  75 HIDDEN_FUNC(_restfpr_20_x)      lfd     20,-96(11)
  76 CFI_RESTORE (52)
  77 HIDDEN_FUNC(_restfpr_21_x)      lfd     21,-88(11)
  78 CFI_RESTORE (53)
  79 HIDDEN_FUNC(_restfpr_22_x)      lfd     22,-80(11)
  80 CFI_RESTORE (54)
  81 HIDDEN_FUNC(_restfpr_23_x)      lfd     23,-72(11)
  82 CFI_RESTORE (55)
  83 HIDDEN_FUNC(_restfpr_24_x)      lfd     24,-64(11)
  84 CFI_RESTORE (56)
  85 HIDDEN_FUNC(_restfpr_25_x)      lfd     25,-56(11)
  86 CFI_RESTORE (57)
  87 HIDDEN_FUNC(_restfpr_26_x)      lfd     26,-48(11)
  88 CFI_RESTORE (58)
  89 HIDDEN_FUNC(_restfpr_27_x)      lfd     27,-40(11)
  90 CFI_RESTORE (59)
  91 HIDDEN_FUNC(_restfpr_28_x)      lfd     28,-32(11)
  92 CFI_RESTORE (60)
  93 HIDDEN_FUNC(_restfpr_29_x)      lfd     29,-24(11)
  94 CFI_RESTORE (61)
  95 HIDDEN_FUNC(_restfpr_30_x)      lfd     30,-16(11)
  96 CFI_RESTORE (62)
  97 HIDDEN_FUNC(_restfpr_31_x)      lwz     0,4(11)
  98                                 lfd     31,-8(11)
  99 CFI_RESTORE (63)
 100                                 mtlr    0
 101 CFI_RESTORE (65)
 102                                 mr      1,11
 103 CFI_DEF_CFA_REGISTER (1)
 104                                 blr
 105 FUNC_END(_restfpr_31_x)
 106 FUNC_END(_restfpr_30_x)
 107 FUNC_END(_restfpr_29_x)
 108 FUNC_END(_restfpr_28_x)
 109 FUNC_END(_restfpr_27_x)
 110 FUNC_END(_restfpr_26_x)
 111 FUNC_END(_restfpr_25_x)
 112 FUNC_END(_restfpr_24_x)
 113 FUNC_END(_restfpr_23_x)
 114 FUNC_END(_restfpr_22_x)
 115 FUNC_END(_restfpr_21_x)
 116 FUNC_END(_restfpr_20_x)
 117 FUNC_END(_restfpr_19_x)
 118 FUNC_END(_restfpr_18_x)
 119 FUNC_END(_restfpr_17_x)
 120 FUNC_END(_restfpr_16_x)
 121 FUNC_END(_restfpr_15_x)
 122 FUNC_END(_restfpr_14_x)
 123 CFI_ENDPROC
 124
 125 #endif