aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/i386/i686/multiarch/wcscpy.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/i386/i686/multiarch/wcscpy.S')
-rw-r--r--sysdeps/i386/i686/multiarch/wcscpy.S46
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/i386/i686/multiarch/wcscpy.S b/sysdeps/i386/i686/multiarch/wcscpy.S
new file mode 100644
index 0000000000..c7bafbe82a
--- /dev/null
+++ b/sysdeps/i386/i686/multiarch/wcscpy.S
@@ -0,0 +1,46 @@
+/* Multiple versions of wcscpy
+ Copyright (C) 2011 Free Software Foundation, Inc.
+ Contributed by Intel Corporation.
+ 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 <init-arch.h>
+
+/* Define multiple versions only for the definition in libc. */
+#ifndef NOT_IN_libc
+ .text
+ENTRY(wcscpy)
+ .type wcscpy, @gnu_indirect_function
+ pushl %ebx
+ cfi_adjust_cfa_offset (4)
+ cfi_rel_offset (ebx, 0)
+ call __i686.get_pc_thunk.bx
+ addl $_GLOBAL_OFFSET_TABLE_, %ebx
+ cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
+ jne 1f
+ call __init_cpu_features
+1: leal __wcscpy_ia32@GOTOFF(%ebx), %eax
+ testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx)
+ jz 2f
+ leal __wcscpy_ssse3@GOTOFF(%ebx), %eax
+2: popl %ebx
+ cfi_adjust_cfa_offset (-4)
+ cfi_restore (ebx)
+ ret
+END(wcscpy)
+#endif