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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-10-13 14:53:13 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-11-30 14:10:16 -0200
commitb70cbbfcc844fd862a3f053991ce392f224b89cd (patch)
tree04b4acb5b878f4ad2b8fdadf532458ff905d4914 /sysdeps/sparc/sparc64/multiarch/sub_n.c
parent023cade3b390a321065a8bdfc0d67e7c7a929780 (diff)
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sparc: refactor sparc64 __mpn_sub_n selector to C
This patch refactors the sparc64 ifunc selector to a C implementation.
Also, the generic symbol is moved to its own implementation file
sub_n-generic.S).

Checked on sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines):
	Add sub_n-generic.
	* sysdeps/sparc/sparc64/multiarch/sub_n-generic.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sub_n.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/sub_n.S: Remove file.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/sparc/sparc64/multiarch/sub_n.c')
-rw-r--r--sysdeps/sparc/sparc64/multiarch/sub_n.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n.c b/sysdeps/sparc/sparc64/multiarch/sub_n.c
new file mode 100644
index 0000000000..758879aaff
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/sub_n.c
@@ -0,0 +1,28 @@
+/* __mpn_sub_n ifunc resolver, Linux/sparc64 version.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <gmp.h>
+#include <sparc-ifunc.h>
+
+extern __typeof (mpn_sub_n) __mpn_sub_n_vis3 attribute_hidden;
+extern __typeof (mpn_sub_n) __mpn_sub_n_generic attribute_hidden;
+
+sparc_libm_ifunc (__mpn_sub_n,
+		  hwcap & HWCAP_SPARC_VIS3
+		  ? __mpn_sub_n_vis3
+		  : __mpn_sub_n_generic)