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authorJakub Jelinek <jakub@redhat.com>2009-03-20 20:00:20 +0000
committerJakub Jelinek <jakub@redhat.com>2009-03-20 20:00:20 +0000
commitef860a878bf532436a469fc1f89fe3366862a949 (patch)
treec4a2666ac77cdaa00f41bd8f66a828b39e2642ff /sysdeps/x86_64/multiarch/sched_cpucount.c
parentd4c583b4466962a9d9d4ca54ab6108dc7b42cdcc (diff)
Updated to fedora-glibc-20090320T1944cvs/fedora-glibc-2_9_90-11
Diffstat (limited to 'sysdeps/x86_64/multiarch/sched_cpucount.c')
-rw-r--r--sysdeps/x86_64/multiarch/sched_cpucount.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/sched_cpucount.c b/sysdeps/x86_64/multiarch/sched_cpucount.c
new file mode 100644
index 0000000000..dc20182df4
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/sched_cpucount.c
@@ -0,0 +1,42 @@
+/* Count bits in CPU set. x86-64 multi-arch version.
+ This file is part of the GNU C Library.
+ Copyright (C) 2008 Free Software Foundation, Inc.
+ Contributed by Ulrich Drepper <drepper@redhat.com>.
+
+ 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. */
+
+#ifdef SHARED
+# include <sched.h>
+# include "init-arch.h"
+
+# define __sched_cpucount static generic_cpucount
+# include <posix/sched_cpucount.c>
+# undef __sched_cpucount
+
+# define POPCNT(l) \
+ ({ __cpu_mask r; \
+ asm ("popcntq %1, %0" : "=r" (r) : "0" (l));\
+ r; })
+# define __sched_cpucount static popcount_cpucount
+# include <posix/sched_cpucount.c>
+# undef __sched_cpucount
+
+libc_ifunc (__sched_cpucount,
+ INTEL_HAS_POPCOUNT || AMD_HAS_POPCOUNT
+ ? popcount_cpucount : generic_cpucount);
+#else
+# include_next <sched_cpucount.c>
+#endif