diff options
Diffstat (limited to 'cddl/contrib/dtracetoolkit/JavaScript/js_flowinfo.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/JavaScript/js_flowinfo.d | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/JavaScript/js_flowinfo.d b/cddl/contrib/dtracetoolkit/JavaScript/js_flowinfo.d new file mode 100755 index 0000000..b4b7d5c --- /dev/null +++ b/cddl/contrib/dtracetoolkit/JavaScript/js_flowinfo.d @@ -0,0 +1,86 @@ +#!/usr/sbin/dtrace -Zs +/* + * js_flowinfo.d - JavaScript function flow with info using DTrace. + * Written for the JavaScript DTrace provider. + * + * $Id: js_flowinfo.d 63 2007-10-04 04:34:38Z brendan $ + * + * This traces activity from all browsers on the system that are running + * with JavaScript provider support. + * + * USAGE: js_flowinfo.d # hit Ctrl-C to end + * + * FIELDS: + * C CPU-id + * PID Process ID + * DELTA(us) Elapsed time from previous line to this line + * FILE Filename of the JavScript program + * LINE Line number of filename + * TYPE Type of call (func) + * FUNC Function name + * + * LEGEND: + * -> function entry + * <- function return + * + * 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; + +dtrace:::BEGIN +{ + printf("%3s %6s %10s %16s:%-4s %-8s -- %s\n", "C", "PID", "DELTA(us)", + "FILE", "LINE", "TYPE", "FUNC"); +} + +javascript*:::function-info, +javascript*:::function-return +/self->last == 0/ +{ + self->last = timestamp; +} + +javascript*:::function-info +{ + this->delta = (timestamp - self->last) / 1000; + printf("%3d %6d %10d %16s:%-4d %-8s %*s-> %s\n", cpu, pid, + this->delta, basename(copyinstr(arg4)), arg5, "func", + self->depth * 2, "", copyinstr(arg2)); + self->depth++; + self->last = timestamp; +} + +javascript*:::function-return +{ + this->delta = (timestamp - self->last) / 1000; + self->depth -= self->depth > 0 ? 1 : 0; + printf("%3d %6d %10d %16s:- %-8s %*s<- %s\n", cpu, pid, + this->delta, basename(copyinstr(arg0)), "func", self->depth * 2, + "", copyinstr(arg2)); + self->last = timestamp; +} |