1 #!/usr/sbin/dtrace -Zs 2 /* 3 * py_syscalls.d - count Python function calls and syscalls using DTrace. 4 * Written for the Python DTrace provider. 5 * 6 * $Id: py_syscalls.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7 * 8 * USAGE: py_syscalls.d { -p PID | -c cmd } # hit Ctrl-C to end 9 * 10 * FIELDS: 11 * FILE Filename of the Python program 12 * TYPE Type of call (func/syscall) 13 * NAME Name of call 14 * COUNT Number of calls during sample 15 * 16 * Filename and function names are printed if available. 17 * The filename for syscalls may be printed as "python", if the program 18 * was invoked using the form "python filename" rather than running the 19 * program with an interpreter line. 20 * 21 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 22 * 23 * CDDL HEADER START 24 * 25 * The contents of this file are subject to the terms of the 26 * Common Development and Distribution License, Version 1.0 only 27 * (the "License"). You may not use this file except in compliance 28 * with the License. 29 * 30 * You can obtain a copy of the license at Docs/cddl1.txt 31 * or http://www.opensolaris.org/os/licensing. 32 * See the License for the specific language governing permissions 33 * and limitations under the License. 34 * 35 * CDDL HEADER END 36 * 37 * 09-Sep-2007 Brendan Gregg Created this. 38 */ 39 40 #pragma D option quiet 41 42 dtrace:::BEGIN 43 { 44 printf("Tracing... Hit Ctrl-C to end.\n"); 45 } 46 47 python$target:::function-entry 48 { 49 @calls[basename(copyinstr(arg0)), "func", copyinstr(arg1)] = count(); 50 } 51 52 syscall:::entry 53 /pid == $target/ 54 { 55 @calls[basename(execname), "syscall", probefunc] = count(); 56 } 57 58 dtrace:::END 59 { 60 printf("\nCalls for PID %d,\n\n", $target); 61 printf(" %-32s %-10s %-22s %8s\n", "FILE", "TYPE", "NAME", "COUNT"); 62 printa(" %-32s %-10s %-22s %@8d\n", @calls); 63 } 64