1*c29d5175Schristos #!/usr/sbin/dtrace -Zs 2*c29d5175Schristos /* 3*c29d5175Schristos * pl_flow.d - snoop Perl execution showing subroutine flow. 4*c29d5175Schristos * Written for the Solaris Perl DTrace provider. 5*c29d5175Schristos * 6*c29d5175Schristos * $Id: pl_flow.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7*c29d5175Schristos * 8*c29d5175Schristos * This traces Perl activity from all Perl programs on the system 9*c29d5175Schristos * running with Perl provider support. 10*c29d5175Schristos * 11*c29d5175Schristos * USAGE: pl_flow.d # hit Ctrl-C to end 12*c29d5175Schristos * 13*c29d5175Schristos * This watches Perl subroutine entries and returns, and indents child 14*c29d5175Schristos * subroutine calls. 15*c29d5175Schristos * 16*c29d5175Schristos * FIELDS: 17*c29d5175Schristos * C CPU-id 18*c29d5175Schristos * TIME(us) Time since boot, us 19*c29d5175Schristos * FILE Filename that this subroutine belongs to 20*c29d5175Schristos * SUB Subroutine name 21*c29d5175Schristos * 22*c29d5175Schristos * LEGEND: 23*c29d5175Schristos * -> subroutine entry 24*c29d5175Schristos * <- subroutine return 25*c29d5175Schristos * 26*c29d5175Schristos * WARNING: Watch the first column carefully, it prints the CPU-id. If it 27*c29d5175Schristos * changes, then it is very likely that the output has been shuffled. 28*c29d5175Schristos * 29*c29d5175Schristos * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 30*c29d5175Schristos * 31*c29d5175Schristos * CDDL HEADER START 32*c29d5175Schristos * 33*c29d5175Schristos * The contents of this file are subject to the terms of the 34*c29d5175Schristos * Common Development and Distribution License, Version 1.0 only 35*c29d5175Schristos * (the "License"). You may not use this file except in compliance 36*c29d5175Schristos * with the License. 37*c29d5175Schristos * 38*c29d5175Schristos * You can obtain a copy of the license at Docs/cddl1.txt 39*c29d5175Schristos * or http://www.opensolaris.org/os/licensing. 40*c29d5175Schristos * See the License for the specific language governing permissions 41*c29d5175Schristos * and limitations under the License. 42*c29d5175Schristos * 43*c29d5175Schristos * CDDL HEADER END 44*c29d5175Schristos * 45*c29d5175Schristos * 09-Sep-2007 Brendan Gregg Created this. 46*c29d5175Schristos */ 47*c29d5175Schristos 48*c29d5175Schristos #pragma D option quiet 49*c29d5175Schristos #pragma D option switchrate=10 50*c29d5175Schristos 51*c29d5175Schristos self int depth; 52*c29d5175Schristos 53*c29d5175Schristos dtrace:::BEGIN 54*c29d5175Schristos { 55*c29d5175Schristos printf("%3s %-16s %-16s -- %s\n", "C", "TIME(us)", "FILE", "SUB"); 56*c29d5175Schristos } 57*c29d5175Schristos 58*c29d5175Schristos perl*:::sub-entry 59*c29d5175Schristos { 60*c29d5175Schristos printf("%3d %-16d %-16s %*s-> %s\n", cpu, timestamp / 1000, 61*c29d5175Schristos basename(copyinstr(arg1)), self->depth * 2, "", copyinstr(arg0)); 62*c29d5175Schristos self->depth++; 63*c29d5175Schristos } 64*c29d5175Schristos 65*c29d5175Schristos perl*:::sub-return 66*c29d5175Schristos { 67*c29d5175Schristos self->depth -= self->depth > 0 ? 1 : 0; 68*c29d5175Schristos printf("%3d %-16d %-16s %*s<- %s\n", cpu, timestamp / 1000, 69*c29d5175Schristos basename(copyinstr(arg1)), self->depth * 2, "", copyinstr(arg0)); 70*c29d5175Schristos } 71