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diff --git a/cddl/contrib/dtracetoolkit/Python/py_flow.d b/cddl/contrib/dtracetoolkit/Python/py_flow.d
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--- a/cddl/contrib/dtracetoolkit/Python/py_flow.d
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-#!/usr/sbin/dtrace -Zs
-/*
- * py_flow.d - snoop Python execution showing function flow.
- * Written for the Python DTrace provider.
- *
- * $Id: py_flow.d 51 2007-09-24 00:55:23Z brendan $
- *
- * This traces Python activity from all Python programs on the system
- * running with Python provider support.
- *
- * USAGE: py_flow.d # hit Ctrl-C to end
- *
- * This watches Python function entries and returns, and indents child
- * function calls.
- *
- * FIELDS:
- * C CPU-id
- * TIME(us) Time since boot, us
- * FILE Filename that this function belongs to
- * FUNC Function name
- *
- * LEGEND:
- * -> function entry
- * <- function return
- *
- * 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;
-
-dtrace:::BEGIN
-{
- printf("%3s %-16s %-16s -- %s\n", "C", "TIME(us)", "FILE", "FUNC");
-}
-
-python*:::function-entry
-{
- printf("%3d %-16d %-16s %*s-> %s\n", cpu, timestamp / 1000,
- basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
- self->depth++;
-}
-
-python*:::function-return
-{
- self->depth -= self->depth > 0 ? 1 : 0;
- printf("%3d %-16d %-16s %*s<- %s\n", cpu, timestamp / 1000,
- basename(copyinstr(arg0)), self->depth * 2, "", copyinstr(arg1));
-}
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