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authorAndreas Schwab <schwab@redhat.com>2010-03-09 15:47:50 +0100
committerAndreas Schwab <schwab@redhat.com>2010-03-09 15:47:50 +0100
commit35be409292e2aaab331d21d2bc42ed4c44477281 (patch)
treedf56d1f09cc5c8aca42b2be2af61f775f25a5b23 /sysdeps/sparc/sparc64/multiarch/memset.S
parent7bea85290bebde69cfb5aa057afb70e019154b4d (diff)
parent462a5227b0d3220ab68f65272bd5b9d6d4f49b1f (diff)
Merge remote branch 'origin/master' into fedora/master
Diffstat (limited to 'sysdeps/sparc/sparc64/multiarch/memset.S')
-rw-r--r--sysdeps/sparc/sparc64/multiarch/memset.S145
1 files changed, 145 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/memset.S b/sysdeps/sparc/sparc64/multiarch/memset.S
new file mode 100644
index 0000000000..23e513f18f
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/memset.S
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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"