Module Name: src
Committed By: darran
Date: Sun Feb 21 07:28:51 UTC 2010
Added Files:
src/sys/kern: kern_dtrace.c
Log Message:
DTrace: missed kern_dtrace.c (thanks rmind!)
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/kern/kern_dtrace.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/sys/kern/kern_dtrace.c
diff -u /dev/null src/sys/kern/kern_dtrace.c:1.1
--- /dev/null Sun Feb 21 07:28:51 2010
+++ src/sys/kern/kern_dtrace.c Sun Feb 21 07:28:51 2010
@@ -0,0 +1,95 @@
+/* $NetBSD: kern_dtrace.c,v 1.1 2010/02/21 07:28:51 darran Exp $ */
+
+/*-
+ * Copyright (c) 2007-2008 John Birrell <j...@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: kern_dtrace.c,v 1.1 2010/02/21 07:28:51 darran Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/kmem.h>
+#include <sys/proc.h>
+#include <sys/dtrace_bsd.h>
+
+#define KDTRACE_PROC_SIZE 64
+#define KDTRACE_PROC_ZERO 8
+#define KDTRACE_THREAD_SIZE 256
+#define KDTRACE_THREAD_ZERO 64
+
+/* Return the DTrace process data size compiled in the kernel hooks. */
+size_t
+kdtrace_proc_size()
+{
+
+ return(KDTRACE_PROC_SIZE);
+}
+
+void
+kdtrace_proc_ctor(void *arg, struct proc *p)
+{
+
+ p->p_dtrace = kmem_alloc(KDTRACE_PROC_SIZE, KM_SLEEP);
+ memset(p->p_dtrace, 0, KDTRACE_PROC_ZERO);
+}
+
+void
+kdtrace_proc_dtor(void *arg, struct proc *p)
+{
+
+ if (p->p_dtrace != NULL) {
+ kmem_free(p->p_dtrace, KDTRACE_PROC_SIZE);
+ p->p_dtrace = NULL;
+ }
+}
+
+/* Return the DTrace thread data size compiled in the kernel hooks. */
+size_t
+kdtrace_thread_size()
+{
+
+ return(KDTRACE_THREAD_SIZE);
+}
+
+void
+kdtrace_thread_ctor(void *arg, struct lwp *l)
+{
+
+ l->l_dtrace = kmem_alloc(KDTRACE_THREAD_SIZE, KM_SLEEP);
+ memset(l->l_dtrace, 0, KDTRACE_THREAD_ZERO);
+}
+
+void
+kdtrace_thread_dtor(void *arg, struct lwp *l)
+{
+
+ if (l->l_dtrace != NULL) {
+ kmem_free(l->l_dtrace, KDTRACE_THREAD_SIZE);
+ l->l_dtrace = NULL;
+ }
+}
