diff --git a/.gitignore b/.gitignore
index 500eb21..f785fe8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,6 @@
 perl-5.12.1.tar.gz
-perl-5.8.0-libdir64.patch
-filter-requires.sh
 /perl-5.12.2.tar.gz
 /perl-5.12.3.tar.gz
-/perl.stp
-/perl-example.stp
 /perl-5.14.0-RC2.tar.bz2
 /perl-5.14.0.tar.bz2
 /perl-5.14.0.tar.gz
diff --git a/filter-requires.sh b/filter-requires.sh
new file mode 100644
index 0000000..72a402a
--- /dev/null
+++ b/filter-requires.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# The original script name has been passed as the first argument:
+"$@" |
+  awk '
+	$0 != "perl(FCGI)" &&
+	$0 != "perl(Your::Module::Here)" &&
+	$0 != "perl(Tk)" &&
+	$0 !~ /^perl\(Tk::/ &&
+	$0 !~ /^perl\(Mac::/
+      '
+
+# We used to filter also these:
+#	NDBM perl(v5.6.0) perl(Tie::RangeHash)
+# but they don't seem to be present anymore.
diff --git a/perl-example.stp b/perl-example.stp
new file mode 100644
index 0000000..040f8e3
--- /dev/null
+++ b/perl-example.stp
@@ -0,0 +1,21 @@
+/*
+    Example of the perl systemtap tapset shows a nested view of perl subroutine
+    calls and returns across the whole system.
+
+    To run:
+        stap perl-example.stp (for all perl processes)
+    For specific perl process:
+        stap perl-example.stp -c COMMAND
+*/
+
+probe perl.sub.call
+{
+    printf("%s => sub: %s, filename: %s, line: %d, package: %s\n",
+        thread_indent(1), sub, filename, lineno, package)
+}
+
+probe perl.sub.return
+{
+    printf("%s <= sub: %s, filename: %s, line: %d, package: %s\n",
+        thread_indent(-1), sub, filename, lineno, package)
+}
diff --git a/perl.stp b/perl.stp
new file mode 100644
index 0000000..ccc203b
--- /dev/null
+++ b/perl.stp
@@ -0,0 +1,39 @@
+/*
+   This probe will fire when the perl script enters a subroutine.
+ */
+
+probe perl.sub.call = process("LIBRARY_PATH").mark("sub__entry")
+{
+
+  sub = user_string($arg1)
+  filename = user_string($arg2)
+  lineno = $arg3
+  package = user_string($arg4)
+
+}
+
+/* 
+   This probe will fire when the return from a subroutine has been 
+   hit.  
+ */
+
+probe perl.sub.return = process("LIBRARY_PATH").mark("sub__return")
+{
+
+  sub = user_string($arg1)
+  filename = user_string($arg2)
+  lineno = $arg3
+  package = user_string($arg4)
+
+}
+
+/* 
+   This probe will fire when the Perl interperter changes state.
+ */
+
+probe perl.phase.change = process("LIBRARY_PATH").mark("phase__change")
+{
+  newphase = user_string($arg1)
+  oldphase = user_string($arg2)
+  
+}
diff --git a/sources b/sources
index c0557ea..319bbae 100644
--- a/sources
+++ b/sources
@@ -1,5 +1 @@
-aceea3db13a159cd5f7e5f2e3ad9534f  perl-5.8.0-libdir64.patch
-ad5d07285d6e4914384b43c9abc2bdba  filter-requires.sh
-93b780a770906408a34b1c511e333a12  perl.stp
-735480c6749c2aa86faa8311fe651142  perl-example.stp
 21062666f1c627aeb6dbff3c6952738b  perl-5.20.2.tar.bz2