docs: slightly separate utrace vs uprobes based user-space probes

diff --git a/stapprobes.3stap b/stapprobes.3stap
index db4a26e2ef9e56f305aefd34bdbd883e8fe5bcdc..862dfc98f7a4e14589fbf2171b014b4f2dc1564b 100644 (file)
--- a/stapprobes.3stap
+++ b/stapprobes.3stap
@@ -614,6 +614,8 @@ Note that for all process probes,
 names refer to executables that are searched the same way shells do: relative
 to the working directory if they contain a "/" character, otherwise in 
 .BR $PATH .
+PATH may also refer to shared libraries, in which case all proceses that
+map it at runtime would be selected for probing.
 If the PATH string contains wildcards as in the MPATTERN case, then
 standard globbing is performed to find all matching paths.  In this
 case, the 
@@ -621,10 +623,8 @@ case, the
 environment variable is not used.
 
 .PP
-PATH may sometimes name a shared library
-in which case all processes that map that shared library may be
-probed.  However, if systemtap was invoked with the
-.IR -c " or " -x
+If systemtap was invoked with the
+.IR \-c " or " \-x
 options, then process probes are restricted to the process
 hierarchy associated with the target process.