On Tue, Jul 12, 2011 at 05:52:09PM +0200, Otto Moerbeek wrote:
> Hi,
>
> The diff below implements utrace(2), a syscall to introduce data into
> a ktrace stream from a userland program.
>
> The interface is taken from netbsd, freebsd also has a utrace(2)
> syscall, but lacks the label argument.
>
> You could uise this as a debugging aid, to get tarce information
> intermixed with sysclal info, or set more specific tracepoint and only
> see the utrace records.
>
> Do we want this? If so, this should be reviewed and tested. And a man
> page for utrace(2) should be written.
>
> Output of utrace("It is I", "some data", 10) looks like:
>
> 24413 a.out CALL utrace(0x500a09,0x5009ff,0xa)
> 24413 a.out USER It is I: 10 bytes
> "some data\0"
> 24413 a.out RET utrace 0
new diff, with comments incorporated and a manpage. Since the
utrace(2) syscall always exists now, I've put it in sys_generic.c. Is
that a right place?
-0tto
Index: lib/libc/sys/Makefile.inc
===================================================================
RCS file: /cvs/src/lib/libc/sys/Makefile.inc,v
retrieving revision 1.92
diff -u -p -r1.92 Makefile.inc
--- lib/libc/sys/Makefile.inc 3 Jul 2010 04:44:51 -0000 1.92
+++ lib/libc/sys/Makefile.inc 18 Jul 2011 09:28:15 -0000
@@ -64,7 +64,7 @@ ASM= accept.o access.o acct.o adjfreq.o
setuid.o shmat.o shmctl.o shmdt.o shmget.o shutdown.o sigaction.o \
sigaltstack.o socket.o socketpair.o stat.o statfs.o swapctl.o \
symlink.o sync.o sysarch.o umask.o unlink.o unmount.o \
- utimes.o wait4.o write.o writev.o nnpfspioctl.o __semctl.o \
+ utimes.o utrace.o wait4.o write.o writev.o nnpfspioctl.o __semctl.o \
__syscall.o __sysctl.o __getcwd.o sched_yield.o getthrid.o \
thrsleep.o thrwakeup.o threxit.o thrsigdivert.o \
setrtable.o getrtable.o
@@ -233,7 +233,7 @@ MAN+= accept.2 access.2 acct.2 adjfreq.2
shutdown.2 sigaction.2 sigaltstack.2 sigpending.2 sigprocmask.2 \
sigreturn.2 sigstack.2 sigsuspend.2 socket.2 socketpair.2 stat.2 \
statfs.2 swapctl.2 symlink.2 sync.2 sysarch.2 syscall.2 truncate.2 \
- umask.2 unlink.2 utimes.2 vfork.2 wait.2 write.2
+ umask.2 unlink.2 utimes.2 utrace.2 vfork.2 wait.2 write.2
MAN+= msgctl.2 shmctl.2 shmat.2 semop.2 semget.2 semctl.2 msgsnd.2 msgrcv.2 \
msgget.2 shmget.2
Index: lib/libc/sys/ktrace.2
===================================================================
RCS file: /cvs/src/lib/libc/sys/ktrace.2,v
retrieving revision 1.20
diff -u -p -r1.20 ktrace.2
--- lib/libc/sys/ktrace.2 8 Jul 2011 19:30:32 -0000 1.20
+++ lib/libc/sys/ktrace.2 18 Jul 2011 09:28:15 -0000
@@ -94,6 +94,8 @@ generate much output).
.It Dv KTRFAC_EMUL Trace emulation changes.
.It Dv KTRFAC_CSW Trace context switch points.
.It Dv KTRFAC_STRUCT Trace various structs
+.It Dv KTRFAC_USER Trace user data coming from
+.Xr utrace 2
.It Dv KTRFAC_INHERIT Inherit tracing to future children.
.El
.Pp
@@ -174,7 +176,8 @@ No process can be found corresponding to
.El
.Sh SEE ALSO
.Xr kdump 1 ,
-.Xr ktrace 1
+.Xr ktrace 1 ,
+.Xr utrace 2
.Sh HISTORY
A
.Fn ktrace
Index: lib/libc/sys/utrace.2
===================================================================
RCS file: lib/libc/sys/utrace.2
diff -N lib/libc/sys/utrace.2
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lib/libc/sys/utrace.2 18 Jul 2011 09:28:15 -0000
@@ -0,0 +1,93 @@
+.\" $OpenBSD: utrace.2,v 1.13 2008/05/02 18:38:32 martin Exp $
+.\" $NetBSD: utrace.2,v 1.13 2008/05/02 18:38:32 martin Exp $
+.\"
+.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Gregory McGarry <[email protected]>.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd Mdocdate$
+.Dt UTRACE 2
+.Os
+.Sh NAME
+.Nm utrace
+.Nd insert user record in ktrace log
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/param.h
+.In sys/uio.h
+.In sys/ktrace.h
+.Ft int
+.Fn utrace "const char *label" "void *addr" "size_t len"
+.Sh DESCRIPTION
+Adds a record to the process trace with information supplied by user.
+The record is identified by
+.Fa label
+and contains
+.Fa len
+bytes from memory pointed to by
+.Fa addr .
+This call only has an effect if the calling process is being traced.
+.Sh RETURN VALUES
+Upon successful completion, a value of 0 is returned.
+Otherwise, a value of \-1 is returned and
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er ENOSYS
+Currently running kernel was compiled without
+.Xr ktrace 2
+support (option KTRACE).
+.It Bq Er EINVAL
+The length of the
+.Fa label
+string was longer than
+.Dv KTR_USER_MAXIDLEN-1
+or the
+specified data length
+.Fa len
+was bigger than
+.Dv KTR_USER_MAXLEN .
+.El
+.Sh SEE ALSO
+.Xr kdump 1 ,
+.Xr ktrace 1 ,
+.Xr ktrace 2 ,
+.Xr options 4
+.Sh HISTORY
+The
+.Fn utrace
+system call first appeared in
+.Fx 2.2 .
+It was added to
+.Ox
+in
+.Ox 5.0 .
+The
+.Fa label
+argument is an extension.
Index: sys/kern/init_sysent.c
===================================================================
RCS file: /cvs/src/sys/kern/init_sysent.c,v
retrieving revision 1.129
diff -u -p -r1.129 init_sysent.c
--- sys/kern/init_sysent.c 9 Jul 2011 05:46:58 -0000 1.129
+++ sys/kern/init_sysent.c 18 Jul 2011 09:28:20 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: init_sysent.c,v 1.129 2011/07/09 05:46:58 matthew Exp $
*/
+/* $OpenBSD$ */
/*
* System call switch table.
@@ -785,5 +785,7 @@ struct sysent sysent[] = {
sys_unlinkat }, /* 325 = unlinkat */
{ 4, s(struct sys_utimensat_args), 0,
sys_utimensat }, /* 326 = utimensat */
+ { 3, s(struct sys_utrace_args), 0,
+ sys_utrace }, /* 327 = utrace */
};
Index: sys/kern/kern_ktrace.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_ktrace.c,v
retrieving revision 1.54
diff -u -p -r1.54 kern_ktrace.c
--- sys/kern/kern_ktrace.c 11 Jul 2011 15:40:47 -0000 1.54
+++ sys/kern/kern_ktrace.c 18 Jul 2011 09:28:20 -0000
@@ -297,6 +297,39 @@ ktrstruct(struct proc *p, const char *na
p->p_traceflag &= ~KTRFAC_ACTIVE;
}
+int
+ktruser(struct proc *p, const char *id, void *addr, size_t len)
+{
+ struct ktr_header kth;
+ struct ktr_user *ktp;
+ int error;
+
+ if (!KTRPOINT(p, KTR_USER))
+ return (0);
+ if (len > KTR_USER_MAXLEN)
+ return ENOSPC;
+
+ p->p_traceflag |= KTRFAC_ACTIVE;
+ ktrinitheader(&kth, p, KTR_USER);
+ ktp = malloc(sizeof(*ktp) + len, M_TEMP, M_WAITOK);
+ bzero(ktp->ktr_id, KTR_USER_MAXIDLEN);
+ error = copyinstr(id, ktp->ktr_id, KTR_USER_MAXIDLEN, NULL);
+ if (error)
+ goto out;
+
+ error = copyin(addr, (void *)(ktp + 1), len);
+ if (error)
+ goto out;
+ kth.ktr_buf = (void *)ktp;
+ kth.ktr_len = sizeof(*ktp) + len;
+ ktrwrite(p, &kth);
+out:
+ free(ktp, M_TEMP);
+ p->p_traceflag &= ~KTRFAC_ACTIVE;
+ return (error);
+}
+
+
/* Interface and common routines */
/*
Index: sys/kern/sys_generic.c
===================================================================
RCS file: /cvs/src/sys/kern/sys_generic.c,v
retrieving revision 1.72
diff -u -p -r1.72 sys_generic.c
--- sys/kern/sys_generic.c 19 Dec 2010 19:54:46 -0000 1.72
+++ sys/kern/sys_generic.c 18 Jul 2011 09:28:20 -0000
@@ -884,3 +884,25 @@ bad:
free(pl, M_TEMP);
return (error);
}
+
+
+/*
+ * utrace system call
+ */
+/* ARGSUSED */
+int
+sys_utrace(struct proc *curp, void *v, register_t *retval)
+{
+#ifdef KTRACE
+ struct sys_utrace_args /* {
+ syscallarg(const char *) label;
+ syscallarg(void *) addr;
+ syscallarg(size_t) len;
+ } */ *uap = v;
+ return (ktruser(curp, SCARG(uap, label), SCARG(uap, addr),
+ SCARG(uap, len)));
+#else
+ return (ENOSYS);
+#endif
+}
+
Index: sys/kern/syscalls.c
===================================================================
RCS file: /cvs/src/sys/kern/syscalls.c,v
retrieving revision 1.130
diff -u -p -r1.130 syscalls.c
--- sys/kern/syscalls.c 9 Jul 2011 05:46:58 -0000 1.130
+++ sys/kern/syscalls.c 18 Jul 2011 09:28:20 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: syscalls.c,v 1.130 2011/07/09 05:46:58 matthew Exp $ */
+/* $OpenBSD$ */
/*
* System call names.
@@ -409,4 +409,5 @@ char *syscallnames[] = {
"symlinkat", /* 324 = symlinkat */
"unlinkat", /* 325 = unlinkat */
"utimensat", /* 326 = utimensat */
+ "utrace", /* 327 = utrace */
};
Index: sys/kern/syscalls.master
===================================================================
RCS file: /cvs/src/sys/kern/syscalls.master,v
retrieving revision 1.117
diff -u -p -r1.117 syscalls.master
--- sys/kern/syscalls.master 9 Jul 2011 05:46:26 -0000 1.117
+++ sys/kern/syscalls.master 18 Jul 2011 09:28:20 -0000
@@ -572,3 +572,5 @@
int flag); }
326 STD { int sys_utimensat(int fd, const char *path, \
const struct timespec *times, int flag); }
+327 STD { int sys_utrace(const char *label, void *addr, \
+ size_t len); }
Index: sys/sys/ktrace.h
===================================================================
RCS file: /cvs/src/sys/sys/ktrace.h,v
retrieving revision 1.11
diff -u -p -r1.11 ktrace.h
--- sys/sys/ktrace.h 8 Jul 2011 19:28:38 -0000 1.11
+++ sys/sys/ktrace.h 18 Jul 2011 09:28:20 -0000
@@ -146,6 +146,19 @@ struct sockaddr;
struct stat;
/*
+ * KTR_USER - user record
+ */
+#define KTR_USER 9
+#define KTR_USER_MAXIDLEN 20
+#define KTR_USER_MAXLEN 2048 /* maximum length of passed
data */
+struct ktr_user {
+ char ktr_id[KTR_USER_MAXIDLEN]; /* string id of caller */
+ /*
+ * Followed by ktr_len - sizeof(struct ktr_user) of user data.
+ */
+};
+
+/*
* kernel trace points (in p_traceflag)
*/
#define KTRFAC_MASK 0x00ffffff
@@ -157,6 +170,7 @@ struct stat;
#define KTRFAC_CSW (1<<KTR_CSW)
#define KTRFAC_EMUL (1<<KTR_EMUL)
#define KTRFAC_STRUCT (1<<KTR_STRUCT)
+#define KTRFAC_USER (1<<KTR_USER)
/*
* trace flags (also in p_traceflags)
@@ -171,6 +185,7 @@ struct stat;
__BEGIN_DECLS
int ktrace(const char *, int, int, pid_t);
+int utrace(const char *, void *, size_t);
__END_DECLS
#else
@@ -182,6 +197,8 @@ void ktrnamei(struct proc *, char *);
void ktrpsig(struct proc *, int, sig_t, int, int, siginfo_t *);
void ktrsyscall(struct proc *, register_t, size_t, register_t []);
void ktrsysret(struct proc *, register_t, int, register_t);
+void ktr_kuser(const char *, void *, size_t);
+int ktruser(struct proc *, const char *, void *, size_t);
void ktrsettracevnode(struct proc *, struct vnode *);
Index: sys/sys/syscall.h
===================================================================
RCS file: /cvs/src/sys/sys/syscall.h,v
retrieving revision 1.129
diff -u -p -r1.129 syscall.h
--- sys/sys/syscall.h 9 Jul 2011 05:46:58 -0000 1.129
+++ sys/sys/syscall.h 18 Jul 2011 09:28:20 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: syscall.h,v 1.129 2011/07/09 05:46:58 matthew Exp $ */
+/* $OpenBSD$ */
/*
* System call numbers.
@@ -670,4 +670,7 @@
/* syscall: "utimensat" ret: "int" args: "int" "const char *" "const struct
timespec *" "int" */
#define SYS_utimensat 326
-#define SYS_MAXSYSCALL 327
+/* syscall: "utrace" ret: "int" args: "const char *" "void *" "size_t" */
+#define SYS_utrace 327
+
+#define SYS_MAXSYSCALL 328
Index: sys/sys/syscallargs.h
===================================================================
RCS file: /cvs/src/sys/sys/syscallargs.h,v
retrieving revision 1.131
diff -u -p -r1.131 syscallargs.h
--- sys/sys/syscallargs.h 9 Jul 2011 05:46:58 -0000 1.131
+++ sys/sys/syscallargs.h 18 Jul 2011 09:28:21 -0000
@@ -1,4 +1,4 @@
-/* $OpenBSD: syscallargs.h,v 1.131 2011/07/09 05:46:58 matthew Exp $
*/
+/* $OpenBSD$ */
/*
* System call argument lists.
@@ -1040,6 +1040,12 @@ struct sys_utimensat_args {
syscallarg(int) flag;
};
+struct sys_utrace_args {
+ syscallarg(const char *) label;
+ syscallarg(void *) addr;
+ syscallarg(size_t) len;
+};
+
/*
* System call prototypes.
*/
@@ -1293,3 +1299,4 @@ int sys_renameat(struct proc *, void *,
int sys_symlinkat(struct proc *, void *, register_t *);
int sys_unlinkat(struct proc *, void *, register_t *);
int sys_utimensat(struct proc *, void *, register_t *);
+int sys_utrace(struct proc *, void *, register_t *);
Index: usr.bin/kdump/kdump.1
===================================================================
RCS file: /cvs/src/usr.bin/kdump/kdump.1,v
retrieving revision 1.20
diff -u -p -r1.20 kdump.1
--- usr.bin/kdump/kdump.1 9 Jul 2011 15:43:38 -0000 1.20
+++ usr.bin/kdump/kdump.1 18 Jul 2011 09:28:21 -0000
@@ -43,7 +43,7 @@
.Op Fl f Ar file
.Op Fl m Ar maxdata
.Op Fl p Ar pid
-.Op Fl t Op ceinsw
+.Op Fl t Op ceinstuw
.Ek
.Sh DESCRIPTION
.Nm
@@ -101,7 +101,7 @@ When decoding STRU records, display stru
GIDs, dates etc. symbolically instead of numerically.
.It Fl T
Display absolute timestamps for each entry (seconds since the Epoch).
-.It Fl t Op ceinstw
+.It Fl t Op ceinstuw
Selects which tracepoints to display.
See the
.Fl t
Index: usr.bin/kdump/kdump.c
===================================================================
RCS file: /cvs/src/usr.bin/kdump/kdump.c,v
retrieving revision 1.60
diff -u -p -r1.60 kdump.c
--- usr.bin/kdump/kdump.c 17 Jul 2011 07:49:34 -0000 1.60
+++ usr.bin/kdump/kdump.c 18 Jul 2011 09:28:21 -0000
@@ -141,6 +141,7 @@ static void ktrpsig(struct ktr_psig *);
static void ktrsyscall(struct ktr_syscall *);
static void ktrsysret(struct ktr_sysret *);
static void ktrstruct(char *, size_t);
+static void ktruser(struct ktr_user *, size_t);
static void setemul(const char *);
static void usage(void);
@@ -260,6 +261,9 @@ main(int argc, char *argv[])
case KTR_STRUCT:
ktrstruct(m, ktrlen);
break;
+ case KTR_USER:
+ ktruser(m, ktrlen);
+ break;
}
if (tail)
(void)fflush(stdout);
@@ -343,6 +347,9 @@ dumpheader(struct ktr_header *kth)
case KTR_STRUCT:
type = "STRU";
break;
+ case KTR_USER:
+ type = "USER";
+ break;
default:
(void)snprintf(unknown, sizeof unknown, "UNKNOWN(%d)",
kth->ktr_type);
@@ -808,12 +815,10 @@ ktremul(char *cp, size_t len)
}
static void
-ktrgenio(struct ktr_genio *ktr, size_t len)
+showbuf(unsigned char *dp, size_t datalen)
{
- unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
int i, j;
- size_t datalen = len - sizeof(struct ktr_genio);
- static int screenwidth = 0;
+ static int screenwidth;
int col = 0, width, bpl;
unsigned char visbuf[5], *cp, c;
@@ -826,14 +831,6 @@ ktrgenio(struct ktr_genio *ktr, size_t l
else
screenwidth = 80;
}
- printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
- ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
- if (maxdata == 0)
- return;
- if (datalen > maxdata)
- datalen = maxdata;
- if (iohex && !datalen)
- return;
if (iohex == 1) {
putchar('\t');
col = 8;
@@ -916,6 +913,23 @@ ktrgenio(struct ktr_genio *ktr, size_t l
}
static void
+ktrgenio(struct ktr_genio *ktr, size_t len)
+{
+ unsigned char *dp = (unsigned char *)ktr + sizeof(struct ktr_genio);
+ size_t datalen = len - sizeof(struct ktr_genio);
+
+ printf("fd %d %s %zu bytes\n", ktr->ktr_fd,
+ ktr->ktr_rw == UIO_READ ? "read" : "wrote", datalen);
+ if (maxdata == 0)
+ return;
+ if (datalen > maxdata)
+ datalen = maxdata;
+ if (iohex && !datalen)
+ return;
+ showbuf(dp, datalen);
+}
+
+static void
ktrpsig(struct ktr_psig *psig)
{
(void)printf("SIG%s ", sys_signame[psig->signo]);
@@ -945,8 +959,6 @@ ktrcsw(struct ktr_csw *cs)
cs->user ? "user" : "kernel");
}
-
-
void
ktrsockaddr(struct sockaddr *sa)
{
@@ -1137,13 +1149,22 @@ invalid:
}
static void
+ktruser(struct ktr_user *usr, size_t len)
+{
+ len -= sizeof(struct ktr_user);
+ printf("%.*s:", KTR_USER_MAXIDLEN, usr->ktr_id);
+ printf(" %zu bytes\n", len);
+ showbuf((unsigned char *)(usr + 1), len);
+}
+
+static void
usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s "
"[-dlnRrTXx] [-e emulation] [-f file] [-m maxdata] [-p pid]\n"
- "%*s[-t [ceinsw]]\n",
+ "%*s[-t [ceinstuw]]\n",
__progname, (int)(sizeof("usage: ") + strlen(__progname)), "");
exit(1);
}
Index: usr.bin/ktrace/ktrace.1
===================================================================
RCS file: /cvs/src/usr.bin/ktrace/ktrace.1,v
retrieving revision 1.22
diff -u -p -r1.22 ktrace.1
--- usr.bin/ktrace/ktrace.1 8 Jul 2011 20:37:18 -0000 1.22
+++ usr.bin/ktrace/ktrace.1 18 Jul 2011 09:28:21 -0000
@@ -109,8 +109,9 @@ The default flags are
.Cm i ,
.Cm n ,
.Cm s ,
+.Cm t ,
and
-.Cm t .
+.Cm u .
The following table equates the letters with the tracepoints:
.Pp
.Bl -tag -width flag -offset indent -compact
@@ -126,6 +127,9 @@ trace namei translations
trace signal processing
.It Cm t
trace various structures
+.It Cm u
+trace user data coming from
+.Xr utrace 2
.It Cm w
trace context switch points
.It Cm +
@@ -177,7 +181,8 @@ Disable tracing of all processes owned b
.Dl $ ktrace -C
.Sh SEE ALSO
.Xr kdump 1 ,
-.Xr ktrace 2
+.Xr ktrace 2 ,
+.Xr utrace 2
.Sh HISTORY
The
.Nm ktrace
Index: usr.bin/ktrace/ktrace.h
===================================================================
RCS file: /cvs/src/usr.bin/ktrace/ktrace.h,v
retrieving revision 1.4
diff -u -p -r1.4 ktrace.h
--- usr.bin/ktrace/ktrace.h 8 Jul 2011 19:29:44 -0000 1.4
+++ usr.bin/ktrace/ktrace.h 18 Jul 2011 09:28:21 -0000
@@ -31,7 +31,8 @@
*/
#define DEF_POINTS (KTRFAC_SYSCALL | KTRFAC_SYSRET | KTRFAC_NAMEI | \
- KTRFAC_GENIO | KTRFAC_PSIG | KTRFAC_EMUL | KTRFAC_STRUCT)
+ KTRFAC_GENIO | KTRFAC_PSIG | KTRFAC_EMUL | KTRFAC_STRUCT | \
+ KTRFAC_USER)
#define ALL_POINTS (DEF_POINTS | KTRFAC_CSW)
Index: usr.bin/ktrace/subr.c
===================================================================
RCS file: /cvs/src/usr.bin/ktrace/subr.c,v
retrieving revision 1.7
diff -u -p -r1.7 subr.c
--- usr.bin/ktrace/subr.c 8 Jul 2011 19:29:44 -0000 1.7
+++ usr.bin/ktrace/subr.c 18 Jul 2011 09:28:21 -0000
@@ -71,6 +71,9 @@ getpoints(s)
case 't':
facs |= KTRFAC_STRUCT;
break;
+ case 'u':
+ facs |= KTRFAC_USER;
+ break;
case '+':
facs |= DEF_POINTS;
break;
