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101 lines
2.4 KiB
D
Executable File
101 lines
2.4 KiB
D
Executable File
#!/usr/sbin/dtrace -s
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/*
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* pathopens.d - full pathnames opened successfully count.
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* Written using DTrace (Solaris 10 3/05)
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*
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* This program prints a count of the number of times files have been
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* successfully opened. This is somewhat special in that the full pathname
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* is calculated, even if the file open referred to a relative pathname.
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*
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* $Id: pathopens.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
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*
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* USAGE: fileopens.d
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*
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* FIELDS:
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* PATHNAME full pathname
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* COUNT number of successful opens
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*
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* Similar to a script from DExplorer.
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*
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* COPYRIGHT: Copyright (c) 2005, 2006 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 28-Jun-2005 Brendan Gregg Created this.
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* 12-Jan-2006 " " Fixed known error.
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* 20-Apr-2006 " " Last update.
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*/
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#pragma D option quiet
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dtrace:::BEGIN
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{
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printf("Tracing... Hit Ctrl-C to end.\n");
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}
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syscall::open*:entry
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{
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self->pathp = arg0;
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self->ok = 1;
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}
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syscall::open*:return
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/self->ok && arg0 != -1/
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{
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self->file = copyinstr(self->pathp);
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self->char0 = copyin(self->pathp, 1);
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/* fetch current working directory */
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this->path = curthread->t_procp->p_user.u_cdir->v_path;
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/*
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* Make the full pathname
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*
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* This routine takes the cwd and the filename, and generates a
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* full pathname. Sometimes the filename is absolute, so we must
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* ignore the cwd. This also checks if the cwd ends in an
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* unnecessary '/'.
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*/
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this->len = strlen(this->path);
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self->join = *(char *)(this->path + this->len - 1) == '/' ? "" : "/";
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self->dir = strjoin(cwd, self->join);
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self->dir = *(char *)self->char0 == '/' ? "" : self->dir;
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self->full = strjoin(self->dir, self->file);
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/* save to aggregation */
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@num[self->full] = count();
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/* cleanup */
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self->join = 0;
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self->full = 0;
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self->dir = 0;
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self->file = 0;
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self->char0 = 0;
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}
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syscall::open*:return
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/self->ok/
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{
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/* cleanup */
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self->ok = 0;
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self->pathp = 0;
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}
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dtrace:::END
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{
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printf("%6s %s\n", "COUNT", "PATHNAME");
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printa("%@6d %s\n", @num);
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}
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