1 #!/usr/sbin/dtrace -s 2 /* 3 * pathopens.d - full pathnames opened successfully count. 4 * Written using DTrace (Solaris 10 3/05) 5 * 6 * This program prints a count of the number of times files have been 7 * successfully opened. This is somewhat special in that the full pathname 8 * is calculated, even if the file open referred to a relative pathname. 9 * 10 * $Id: pathopens.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 11 * 12 * USAGE: fileopens.d 13 * 14 * FIELDS: 15 * PATHNAME full pathname 16 * COUNT number of successful opens 17 * 18 * Similar to a script from DExplorer. 19 * 20 * COPYRIGHT: Copyright (c) 2005, 2006 Brendan Gregg. 21 * 22 * CDDL HEADER START 23 * 24 * The contents of this file are subject to the terms of the 25 * Common Development and Distribution License, Version 1.0 only 26 * (the "License"). You may not use this file except in compliance 27 * with the License. 28 * 29 * You can obtain a copy of the license at Docs/cddl1.txt 30 * or http://www.opensolaris.org/os/licensing. 31 * See the License for the specific language governing permissions 32 * and limitations under the License. 33 * 34 * CDDL HEADER END 35 * 36 * 28-Jun-2005 Brendan Gregg Created this. 37 * 12-Jan-2006 " " Fixed known error. 38 * 20-Apr-2006 " " Last update. 39 */ 40 41 #pragma D option quiet 42 43 dtrace:::BEGIN 44 { 45 printf("Tracing... Hit Ctrl-C to end.\n"); 46 } 47 48 syscall::open*:entry 49 { 50 self->pathp = arg0; 51 self->ok = 1; 52 } 53 54 syscall::open*:return 55 /self->ok && arg0 != -1/ 56 { 57 self->file = copyinstr(self->pathp); 58 self->char0 = copyin(self->pathp, 1); 59 60 /* fetch current working directory */ 61 this->path = curthread->t_procp->p_user.u_cdir->v_path; 62 63 /* 64 * Make the full pathname 65 * 66 * This routine takes the cwd and the filename, and generates a 67 * full pathname. Sometimes the filename is absolute, so we must 68 * ignore the cwd. This also checks if the cwd ends in an 69 * unnecessary '/'. 70 */ 71 this->len = strlen(this->path); 72 self->join = *(char *)(this->path + this->len - 1) == '/' ? "" : "/"; 73 self->dir = strjoin(cwd, self->join); 74 self->dir = *(char *)self->char0 == '/' ? "" : self->dir; 75 self->full = strjoin(self->dir, self->file); 76 77 /* save to aggregation */ 78 @num[self->full] = count(); 79 80 /* cleanup */ 81 self->join = 0; 82 self->full = 0; 83 self->dir = 0; 84 self->file = 0; 85 self->char0 = 0; 86 } 87 88 syscall::open*:return 89 /self->ok/ 90 { 91 /* cleanup */ 92 self->ok = 0; 93 self->pathp = 0; 94 } 95 96 dtrace:::END 97 { 98 printf("%6s %s\n", "COUNT", "PATHNAME"); 99 printa("%@6d %s\n", @num); 100 } 101