sysdeps/sparc/sparc64/multiarch/memset.S

   1 /* Multiple versions of memset and bzero
   2    All versions must be listed in ifunc-impl-list.c.
   3    Copyright (C) 2010-2014 Free Software Foundation, Inc.
   4    Contributed by David S. Miller (davem@davemloft.net)
   5    This file is part of the GNU C Library.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include <sysdep.h>
  22
  23 #if !defined NOT_IN_libc
  24         .text
  25 ENTRY(memset)
  26         .type   memset, @gnu_indirect_function
  27 # ifdef SHARED
  28         SETUP_PIC_REG_LEAF(o3, o5)
  29 # endif
  30         set     HWCAP_SPARC_CRYPTO, %o1
  31         andcc   %o0, %o1, %g0
  32         be      1f
  33          andcc  %o0, HWCAP_SPARC_BLKINIT, %g0
  34 # ifdef SHARED
  35         sethi   %gdop_hix22(__memset_niagara4), %o1
  36         xor     %o1, %gdop_lox10(__memset_niagara4), %o1
  37 # else
  38         set     __memset_niagara4, %o1
  39 # endif
  40         ba      10f
  41          nop
  42 1:      be      9f
  43          nop
  44 # ifdef SHARED
  45         sethi   %gdop_hix22(__memset_niagara1), %o1
  46         xor     %o1, %gdop_lox10(__memset_niagara1), %o1
  47 # else
  48         set     __memset_niagara1, %o1
  49 # endif
  50         ba      10f
  51          nop
  52 9:
  53 # ifdef SHARED
  54         sethi   %gdop_hix22(__memset_ultra1), %o1
  55         xor     %o1, %gdop_lox10(__memset_ultra1), %o1
  56 # else
  57         set     __memset_ultra1, %o1
  58 # endif
  59 10:
  60 # ifdef SHARED
  61         add     %o3, %o1, %o1
  62 # endif
  63         retl
  64          mov    %o1, %o0
  65 END(memset)
  66
  67 ENTRY(__bzero)
  68         .type   bzero, @gnu_indirect_function
  69 # ifdef SHARED
  70         SETUP_PIC_REG_LEAF(o3, o5)
  71 # endif
  72         set     HWCAP_SPARC_CRYPTO, %o1
  73         andcc   %o0, %o1, %g0
  74         be      1f
  75          andcc  %o0, HWCAP_SPARC_BLKINIT, %g0
  76 # ifdef SHARED
  77         sethi   %gdop_hix22(__bzero_niagara4), %o1
  78         xor     %o1, %gdop_lox10(__bzero_niagara4), %o1
  79 # else
  80         set     __bzero_niagara4, %o1
  81 # endif
  82         ba      10f
  83          nop
  84 1:      be      9f
  85          nop
  86 # ifdef SHARED
  87         sethi   %gdop_hix22(__bzero_niagara1), %o1
  88         xor     %o1, %gdop_lox10(__bzero_niagara1), %o1
  89 # else
  90         set     __bzero_niagara1, %o1
  91 # endif
  92         ba      10f
  93          nop
  94 9:
  95 # ifdef SHARED
  96         sethi   %gdop_hix22(__bzero_ultra1), %o1
  97         xor     %o1, %gdop_lox10(__bzero_ultra1), %o1
  98 # else
  99         set     __bzero_ultra1, %o1
 100 # endif
 101 10:
 102 # ifdef SHARED
 103         add     %o3, %o1, %o1
 104 # endif
 105         retl
 106          mov    %o1, %o0
 107 END(__bzero)
 108
 109 weak_alias (__bzero, bzero)
 110
 111 # undef weak_alias
 112 # define weak_alias(a, b)
 113
 114 libc_hidden_builtin_def (memset)
 115
 116 #undef libc_hidden_builtin_def
 117 #define libc_hidden_builtin_def(name)
 118
 119 #define memset __memset_ultra1
 120 #define __bzero __bzero_ultra1
 121
 122 #endif
 123
 124 #include "../memset.S"