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diff --git a/cddl/contrib/dtracetoolkit/dist/Shell/sh_flowtime.d b/cddl/contrib/dtracetoolkit/dist/Shell/sh_flowtime.d
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+++ b/cddl/contrib/dtracetoolkit/dist/Shell/sh_flowtime.d
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+#!/usr/sbin/dtrace -Zs
+/*
+ * sh_flowtime.d - snoop Bourne shell execution with flow and delta times.
+ * Written for the sh DTrace provider.
+ *
+ * $Id: sh_flowtime.d 45 2007-09-17 08:54:56Z brendan $
+ *
+ * This traces shell activity from all Bourne shells on the system that are
+ * running with sh provider support.
+ *
+ * USAGE: sh_flowtime.d # hit Ctrl-C to end
+ *
+ * This watches shell function entries and returns, and indents child
+ * function calls. Shell builtins are also printed.
+ *
+ * FIELDS:
+ * C CPU-id
+ * TIME(us) Time since boot, us
+ * FILE Filename that this function belongs to
+ * NAME Shell function or builtin name
+ *
+ * LEGEND:
+ * -> function entry
+ * <- function return
+ * > builtin
+ * | external command
+ *
+ * DELTAs:
+ * -> previous line to the start of this function
+ * <- previous line to the end of this function
+ * > previous line to the end of this builtin
+ * | previous line to the end of this command
+ *
+ * See sh_flowinfo.d for more verbose and more straightforward delta times.
+ *
+ * Filename and function names are printed if available.
+ *
+ * WARNING: Watch the first column carefully, it prints the CPU-id. If it
+ * changes, then it is very likely that the output has been shuffled.
+ *
+ * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
+ *
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at Docs/cddl1.txt
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * CDDL HEADER END
+ *
+ * 09-Sep-2007 Brendan Gregg Created this.
+ */
+
+#pragma D option quiet
+#pragma D option switchrate=10
+
+self int depth;
+
+self uint64_t last;
+
+dtrace:::BEGIN
+{
+ printf("%3s %-16s %-16s %9s -- %s\n", "C", "TIME(us)", "FILE",
+ "DELTA(us)", "NAME");
+}
+
+sh*:::function-entry,
+sh*:::function-return,
+sh*:::builtin-return,
+sh*:::command-return
+/self->last == 0/
+{
+ self->last = timestamp;
+}
+
+sh*:::function-entry
+{
+ this->elapsed = (timestamp - self->last) / 1000;
+ printf("%3d %-16d %-16s %9d %*s-> %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), this->elapsed, self->depth * 2, "",
+ copyinstr(arg1));
+ self->depth++;
+ self->last = timestamp;
+}
+
+sh*:::function-return
+{
+ this->elapsed = (timestamp - self->last) / 1000;
+ self->depth -= self->depth > 0 ? 1 : 0;
+ printf("%3d %-16d %-16s %9d %*s<- %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), this->elapsed, self->depth * 2, "",
+ copyinstr(arg1));
+ self->last = timestamp;
+}
+
+sh*:::builtin-return
+{
+ this->elapsed = (timestamp - self->last) / 1000;
+ printf("%3d %-16d %-16s %9d %*s> %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), this->elapsed, self->depth * 2, "",
+ copyinstr(arg1));
+ self->last = timestamp;
+}
+
+sh*:::command-return
+{
+ this->elapsed = (timestamp - self->last) / 1000;
+ printf("%3d %-16d %-16s %9d %*s| %s\n", cpu, timestamp / 1000,
+ basename(copyinstr(arg0)), this->elapsed, self->depth * 2, "",
+ copyinstr(arg1));
+ self->last = timestamp;
+}
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