sysdeps/powerpc/powerpc32/gprsave0.S

   1 /* Copyright (C) 2000-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /*
  19     General Purpose Register (GPR) save routine
  20     when Floating Point Registers (FPRs) are not saved
  21
  22     Note: This save routine must not be called when GPR30 or
  23     GPR31, or both, are the only registers beings saved. In these
  24     cases, the saving and restoring must be done inline.
  25 */
  26
  27 #include <sysdep.h>
  28
  29 ENTRY(_savegpr0_all)
  30                 .globl C_TEXT(_savegpr0_13)
  31 C_TEXT(_savegpr0_13):   stw     r13,-76(r1)
  32                         cfi_offset(r13,-76)
  33                 .globl C_TEXT(_savegpr0_14)
  34 C_TEXT(_savegpr0_14):   stw     r14,-72(r1)
  35                         cfi_offset(r14,-72)
  36                 .globl C_TEXT(_savegpr0_15)
  37 C_TEXT(_savegpr0_15):   stw     r15,-68(r1)
  38                         cfi_offset(r15,-68)
  39                 .globl C_TEXT(_savegpr0_16)
  40 C_TEXT(_savegpr0_16):   stw     r16,-64(r1)
  41                         cfi_offset(r16,-64)
  42                 .globl C_TEXT(_savegpr0_17)
  43 C_TEXT(_savegpr0_17):   stw     r17,-60(r1)
  44                         cfi_offset(r17,-60)
  45                 .globl C_TEXT(_savegpr0_18)
  46 C_TEXT(_savegpr0_18):   stw     r18,-56(r1)
  47                         cfi_offset(r18,-56)
  48                 .globl C_TEXT(_savegpr0_19)
  49 C_TEXT(_savegpr0_19):   stw     r19,-52(r1)
  50                         cfi_offset(r19,-52)
  51                 .globl C_TEXT(_savegpr0_20)
  52 C_TEXT(_savegpr0_20):   stw     r20,-48(r1)
  53                         cfi_offset(r20,-48)
  54                 .globl C_TEXT(_savegpr0_21)
  55 C_TEXT(_savegpr0_21):   stw     r21,-44(r1)
  56                         cfi_offset(r21,-44)
  57                 .globl C_TEXT(_savegpr0_22)
  58 C_TEXT(_savegpr0_22):   stw     r22,-40(r1)
  59                         cfi_offset(r22,-40)
  60                 .globl C_TEXT(_savegpr0_23)
  61 C_TEXT(_savegpr0_23):   stw     r23,-36(r1)
  62                         cfi_offset(r23,-36)
  63                 .globl C_TEXT(_savegpr0_24)
  64 C_TEXT(_savegpr0_24):   stw     r24,-32(r1)
  65                         cfi_offset(r24,-32)
  66                 .globl C_TEXT(_savegpr0_25)
  67 C_TEXT(_savegpr0_25):   stw     r25,-28(r1)
  68                         cfi_offset(r25,-28)
  69                 .globl C_TEXT(_savegpr0_26)
  70 C_TEXT(_savegpr0_26):   stw     r26,-24(r1)
  71                         cfi_offset(r26,-24)
  72                 .globl C_TEXT(_savegpr0_27)
  73 C_TEXT(_savegpr0_27):   stw     r27,-20(r1)
  74                         cfi_offset(r27,-20)
  75                 .globl C_TEXT(_savegpr0_28)
  76 C_TEXT(_savegpr0_28):   stw     r28,-16(r1)
  77                         cfi_offset(r28,-16)
  78                 .globl C_TEXT(_savegpr0_29)
  79 C_TEXT(_savegpr0_29):   stw     r29,-12(r1) #save r29
  80                         stw     r30,-8(r1)  #save r30
  81                         stw     r31,-4(r1)  #save r31
  82                         cfi_offset(r29,-12)
  83                         cfi_offset(r30,-8)
  84                         cfi_offset(r31,-4)
  85                         stw     r0,8(r1)    #save LR in callers frame
  86                         blr                 #return
  87 END (_savegpr0_all)