X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=libringbuffer%2Fgetcpu.h;h=7b009dc6cf38efefd67aece71a8308a66a351efb;hb=HEAD;hp=3474bfe0c04f9f218eac190b001b08600f9d8272;hpb=08bf1cc1c8731a717e253932f3e36672b0476078;p=lttng-ust.git

diff --git a/libringbuffer/getcpu.h b/libringbuffer/getcpu.h
deleted file mode 100644
index 3474bfe0..00000000
--- a/libringbuffer/getcpu.h
+++ /dev/null
@@ -1,96 +0,0 @@
-#ifndef _LTTNG_GETCPU_H
-#define _LTTNG_GETCPU_H
-
-/*
- * Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This 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; only
- * version 2.1 of the License.
- *
- * This 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 this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <urcu/compiler.h>
-
-#ifdef UST_VALGRIND
-
-/*
- * Fallback on cpu 0 if liblttng-ust is build with Valgrind support.
- * get_cpu() returns the current CPU number. It may change due to
- * migration, so it is only statistically accurate.
- */
-static inline
-int lttng_ust_get_cpu(void)
-{
-	return 0;
-}
-
-#else
-
-/*
- * sched_getcpu.
- */
-#ifdef __linux__
-
-#ifdef __UCLIBC__
-#include <sys/syscall.h>
-#define __getcpu(cpu, node, cache)	syscall(__NR_getcpu, cpu, node, cache)
-/*
- * If getcpu is not implemented in the kernel, use cpu 0 as fallback.
- */
-static inline
-int lttng_ust_get_cpu(void)
-{
-	int cpu, ret;
-
-	ret = __getcpu(&cpu, NULL, NULL);
-	if (caa_unlikely(ret < 0))
-		return 0;
-	return c;
-}
-#else /* __UCLIBC__ */
-#include <sched.h>
-
-/*
- * If getcpu is not implemented in the kernel, use cpu 0 as fallback.
- */
-static inline
-int lttng_ust_get_cpu(void)
-{
-	int cpu;
-
-	cpu = sched_getcpu();
-	if (caa_unlikely(cpu < 0))
-		return 0;
-	return cpu;
-}
-#endif	/* __UCLIBC__ */
-
-#elif defined(__FreeBSD__)
-
-/*
- * FreeBSD does not allow query of CPU ID. Always use CPU number 0, with
- * the assocated performance degradation on SMP.
- */
-static inline
-int lttng_ust_get_cpu(void)
-{
-	return 0;
-}
-
-#else
-#error "Please add support for your OS into liblttng-ust/compat.h."
-#endif
-
-#endif
-
-#endif /* _LTTNG_GETCPU_H */