Date: Wed, 30 Jan 2008 05:46:43 GMT From: John Birrell <jb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 134445 for review Message-ID: <200801300546.m0U5khsT086869@repoman.freebsd.org>
index | next in thread | raw e-mail
http://perforce.freebsd.org/chv.cgi?CH=134445 Change 134445 by jb@jb_freebsd1 on 2008/01/30 05:46:13 IFdtrace Affected files ... .. //depot/projects/dtrace7/src/sys/kern/kern_exec.c#4 edit Differences ... ==== //depot/projects/dtrace7/src/sys/kern/kern_exec.c#4 (text+ko) ==== @@ -28,6 +28,7 @@ __FBSDID("$FreeBSD: src/sys/kern/kern_exec.c,v 1.308.2.2 2008/01/18 10:02:51 kib Exp $"); #include "opt_hwpmc_hooks.h" +#include "opt_kdtrace.h" #include "opt_ktrace.h" #include "opt_mac.h" @@ -53,6 +54,7 @@ #include <sys/pioctl.h> #include <sys/namei.h> #include <sys/resourcevar.h> +#include <sys/sdt.h> #include <sys/sf_buf.h> #include <sys/syscallsubr.h> #include <sys/sysent.h> @@ -82,6 +84,19 @@ #include <security/audit/audit.h> #include <security/mac/mac_framework.h> +#ifdef KDTRACE_HOOKS +#include <sys/dtrace_bsd.h> +dtrace_execexit_func_t dtrace_fasttrap_exec; +#endif + +SDT_PROVIDER_DECLARE(proc); +SDT_PROBE_DEFINE(proc, kernel, , exec); +SDT_PROBE_ARGTYPE(proc, kernel, , exec, 0, "char *"); +SDT_PROBE_DEFINE(proc, kernel, , exec_failure); +SDT_PROBE_ARGTYPE(proc, kernel, , exec_failure, 0, "int"); +SDT_PROBE_DEFINE(proc, kernel, , exec_success); +SDT_PROBE_ARGTYPE(proc, kernel, , exec_success, 0, "char *"); + MALLOC_DEFINE(M_PARGS, "proc-args", "Process arguments"); static int sysctl_kern_ps_strings(SYSCTL_HANDLER_ARGS); @@ -347,6 +362,8 @@ imgp->image_header = NULL; + SDT_PROBE(proc, kernel, , exec, args->fname, 0, 0, 0, 0 ); + /* * Translate the file name. namei() returns a vnode pointer * in ni_vp amoung other things. @@ -653,6 +670,15 @@ textvp = p->p_textvp; p->p_textvp = ndp->ni_vp; +#ifdef KDTRACE_HOOKS + /* + * Tell the DTrace fasttrap provider about the exec if it + * has declared an interest. + */ + if (dtrace_fasttrap_exec) + dtrace_fasttrap_exec(p); +#endif + /* * Notify others that we exec'd, and clear the P_INEXEC flag * as we're now a bona fide freshly-execed process. @@ -724,6 +750,9 @@ else crfree(newcred); VOP_UNLOCK(imgp->vp, 0, td); + + SDT_PROBE(proc, kernel, , exec_success, args->fname, 0, 0, 0, 0); + /* * Handle deferred decrement of ref counts. */help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200801300546.m0U5khsT086869>