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/* Multiple versions of memset and bzero
Copyright (C) 2010 Free Software Foundation, Inc.
Contributed by David S. Miller (davem@davemloft.net)
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <rtld-global-offsets.h>
#if !defined NOT_IN_libc
.text
ENTRY(memset)
.type memset, @gnu_indirect_function
# ifdef SHARED
mov %o7, %o5
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %o3
call 1f
or %o3, %lo(_GLOBAL_OFFSET_TABLE_+4), %o3
1: add %o7, %o3, %o3
mov %o5, %o7
sethi %hi(_rtld_global_ro), %o2
or %o2, %lo(_rtld_global_ro), %o2
# ifdef __arch64__
ldx [%o3 + %o2], %o2
ldx [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET], %o2
# else
ld [%o3 + %o2], %o2
ld [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET + 4], %o2
# endif
# else
set _dl_hwcap, %o3
# ifdef __arch64__
ldx [%o3], %o2
# else
ld [%o3 + 4], %o2
# endif
# endif
andcc %o2, 0x40, %g0 ! HWCAP_SPARC_BLKINIT
be 9f
nop
# ifdef SHARED
sethi %gdop_hix22(__memset_niagara1), %o1
xor %o1, %gdop_lox10(__memset_niagara1), %o1
# else
set __memset_niagara1, %o1
# endif
ba 10f
nop
9:
# ifdef SHARED
sethi %gdop_hix22(__memset_ultra1), %o1
xor %o1, %gdop_lox10(__memset_ultra1), %o1
# else
set __memset_ultra1, %o1
# endif
10:
# ifdef SHARED
add %o3, %o1, %o1
# endif
retl
mov %o1, %o0
END(memset)
ENTRY(__bzero)
.type bzero, @gnu_indirect_function
# ifdef SHARED
mov %o7, %o5
sethi %hi(_GLOBAL_OFFSET_TABLE_-4), %o3
call 1f
or %o3, %lo(_GLOBAL_OFFSET_TABLE_+4), %o3
1: add %o7, %o3, %o3
mov %o5, %o7
sethi %hi(_rtld_global_ro), %o2
or %o2, %lo(_rtld_global_ro), %o2
# ifdef __arch64__
ldx [%o3 + %o2], %o2
ldx [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET], %o2
# else
ld [%o3 + %o2], %o2
ld [%o2 + RTLD_GLOBAL_RO_DL_HWCAP_OFFSET + 4], %o2
# endif
# else
set _dl_hwcap, %o3
# ifdef __arch64__
ldx [%o3], %o2
# else
ld [%o3 + 4], %o2
# endif
# endif
andcc %o2, 0x40, %g0 ! HWCAP_SPARC_BLKINIT
be 9f
nop
# ifdef SHARED
sethi %gdop_hix22(__bzero_niagara1), %o1
xor %o1, %gdop_lox10(__bzero_niagara1), %o1
# else
set __bzero_niagara1, %o1
# endif
ba 10f
nop
9:
# ifdef SHARED
sethi %gdop_hix22(__memset_ultra1), %o1
xor %o1, %gdop_lox10(__memset_ultra1), %o1
# else
set __bzero_ultra1, %o1
# endif
10:
# ifdef SHARED
add %o3, %o1, %o1
# endif
retl
mov %o1, %o0
END(__bzero)
weak_alias (__bzero, bzero)
# undef weak_alias
# define weak_alias(a, b)
# undef libc_hidden_builtin_def
/* IFUNC doesn't work with the hidden functions in a shared library. */
# define libc_hidden_builtin_def(name) \
.globl __GI_memset; __GI_memset = __memset_ultra1
#define memset __memset_ultra1
#define __bzero __bzero_ultra1
#endif
#include "../memset.S"
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