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-rw-r--r--usr/src/man/man3proc/Psysentry.3proc26
1 files changed, 15 insertions, 11 deletions
diff --git a/usr/src/man/man3proc/Psysentry.3proc b/usr/src/man/man3proc/Psysentry.3proc
index 1647b00a83..6190890410 100644
--- a/usr/src/man/man3proc/Psysentry.3proc
+++ b/usr/src/man/man3proc/Psysentry.3proc
@@ -43,8 +43,9 @@ functions controls what actions the process handle
should take upon executing a system call.
.Pp
The system allows a process to be stopped on both entry and exit of a
-system call. For information on the state of the process when it is
-stopped due to system call tracing, see the
+system call.
+For information on the state of the process when it is stopped due to system
+call tracing, see the
.Sy PCSENTRY
and
.Sy PCSEXIT
@@ -55,18 +56,20 @@ The value of the
.Fa stop
parameter controls whether or not the system call listed in
.Fa which
-causes the process to stop. A value of non-zero indicates the process
-should stop; a value of 0 indicates it should not.
+causes the process to stop.
+A value of non-zero indicates the process should stop;
+a value of 0 indicates it should not.
.Pp
The value of
.Fa which
-indicates which system call the change applies to. A value of 0
-applies to all system calls. Note, the system does not supply a stable
-mapping from system call names to identifiers.
+indicates which system call the change applies to.
+A value of 0 applies to all system calls.
+Note, the system does not supply a stable mapping from system call names to
+identifiers.
.Pp
-These functions only apply to actively running processes. They do not
-function on handles that refer to core files, zombie processes, or ELF
-objects.
+These functions only apply to actively running processes.
+They do not function on handles that refer to core files, zombie processes,
+or ELF objects.
.Sh RETURN VALUES
Upon successful completion, the
.Fn Psetentry
@@ -77,7 +80,8 @@ functions return the previous disposition of the system call --
if it was not set to stop and
.Sy 1
if it was --
-and the system call state is updated. Otherwise,
+and the system call state is updated.
+Otherwise,
.Sy -1
is returned,
.Dv errno