ftrace: selftests: Add full glob matching and update ftracetest

index 08d74d7..2cc08d4 100644
@@ -189,16 +189,13 @@ And for string fields they are:
 
 ==, !=, ~
 
-The glob (~) only accepts a wild card character (*) at the start and or
-end of the string. For example:
+The glob (~) accepts a wild card character (*,?) and character classes
+([). For example:
 
   prev_comm ~ "*sh"
   prev_comm ~ "sh*"
   prev_comm ~ "*sh*"
-
-But does not allow for it to be within the string:
-
-  prev_comm ~ "ba*sh"   <-- is invalid
+  prev_comm ~ "ba*sh"
 
 5.2 Setting filters
 -------------------

index 185c39f..1bc66c1 100644
@@ -2218,16 +2218,13 @@ hrtimer_interrupt
 sys_nanosleep
 
 
-Perhaps this is not enough. The filters also allow simple wild
-cards. Only the following are currently available
+Perhaps this is not enough. The filters also allow glob(7) matching.
 
   <match>*  - will match functions that begin with <match>
   *<match>  - will match functions that end with <match>
   *<match>* - will match functions that have <match> in it
-
-These are the only wild cards which are supported.
-
-  <match>*<match> will not work.
+  <match1>*<match2> - will match functions that begin with
+                      <match1> and end with <match2>
 
 Note: It is better to use quotes to enclose the wild cards,
       otherwise the shell may expand the parameters into names

index 2a96b06..d503800 100644
@@ -70,6 +70,7 @@ config FTRACE_NMI_ENTER
 
 config EVENT_TRACING
 	select CONTEXT_SWITCH_TRACER
+        select GLOB
 	bool
 
 config CONTEXT_SWITCH_TRACER

@@ -133,6 +134,7 @@ config FUNCTION_TRACER
 	select KALLSYMS
 	select GENERIC_TRACER
 	select CONTEXT_SWITCH_TRACER
+        select GLOB
 	help
 	  Enable the kernel to trace every kernel function. This is done
 	  by using a compiler feature to insert a small, 5-byte No-Operation

index 4c6a0bf..a03d366 100755
@@ -228,7 +228,7 @@ trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL
 
 __run_test() { # testfile
   # setup PID and PPID, $$ is not updated.
-  (cd $TRACING_DIR; read PID _ < /proc/self/stat ; set -e; set -x; . $1)
+  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x; initialize_ftrace; . $1)
   [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
 }
 

index c37262f..fbaf565 100644
@@ -23,3 +23,28 @@ reset_trigger() { # reset all current setting triggers
     done
 }
 
+reset_events_filter() { # reset all current setting filters
+    grep -v ^none events/*/*/filter |
+    while read line; do
+	echo 0 > `echo $line | cut -f1 -d:`
+    done
+}
+
+disable_events() {
+    echo 0 > events/enable
+}
+
+initialize_ftrace() { # Reset ftrace to initial-state
+# As the initial state, ftrace will be set to nop tracer,
+# no events, no triggers, no filters, no function filters,
+# no probes, and tracing on.
+    disable_tracing
+    reset_tracer
+    reset_trigger
+    reset_events_filter
+    disable_events
+    echo | tee set_ftrace_* set_graph_* stack_trace_filter set_event_pid
+    echo > kprobe_events
+    echo > uprobe_events
+    enable_tracing
+}

new file mode 100644
index 0000000..98d8a5a
@@ -0,0 +1 @@
+logs

index a03d366..f0ab3a0 100755
@@ -236,6 +236,7 @@ __run_test() { # testfile
 run_test() { # testfile
   local testname=`basename $1`
   local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
+  export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
   testcase $1
   echo "execute: "$1 > $testlog
   SIG_RESULT=0

@@ -252,6 +253,7 @@ run_test() { # testfile
     catlog $testlog
     TOTAL_RESULT=1
   fi
+  rm -rf $TMPDIR
 }
 
 # load in the helper functions

new file mode 100644
index 0000000..9dcd0ca
@@ -0,0 +1,49 @@
+#!/bin/sh
+# description: ftrace - function glob filters
+
+# Make sure that function glob matching filter works.
+
+if ! grep -q function available_tracers; then
+    echo "no function tracer configured"
+    exit_unsupported
+fi
+
+disable_tracing
+clear_trace
+
+# filter by ?, schedule is always good
+if ! echo "sch?dule" > set_ftrace_filter; then
+    # test for powerpc 64
+    if ! echo ".sch?dule" > set_ftrace_filter; then
+	fail "can not enable schedule filter"
+    fi
+    cat set_ftrace_filter | grep '^.schedule$'
+else
+    cat set_ftrace_filter | grep '^schedule$'
+fi
+
+ftrace_filter_check() { # glob grep
+  echo "$1" > set_ftrace_filter
+  cut -f1 -d" " set_ftrace_filter > $TMPDIR/actual
+  cut -f1 -d" " available_filter_functions | grep "$2" > $TMPDIR/expected
+  DIFF=`diff $TMPDIR/actual $TMPDIR/expected`
+  test -z "$DIFF"
+}
+
+# filter by *, front match
+ftrace_filter_check '*schedule' '^.*schedule$'
+
+# filter by *, middle match
+ftrace_filter_check '*schedule*' '^.*schedule.*$'
+
+# filter by *, end match
+ftrace_filter_check 'schedule*' '^schedule.*$'
+
+# filter by *, both side match
+ftrace_filter_check 'sch*ule' '^sch.*ule$'
+
+# filter by char class.
+ftrace_filter_check '[Ss]y[Ss]_*' '^[Ss]y[Ss]_.*$'
+
+echo > set_ftrace_filter
+enable_tracing

new file mode 100644
index 0000000..0a78705
@@ -0,0 +1,37 @@
+#!/bin/sh
+# description: Kprobes event arguments with types
+
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
+grep "x8/16/32/64" README > /dev/null || exit_unsupported # version issue
+
+echo 0 > events/enable
+echo > kprobe_events
+enable_tracing
+
+echo 'p:testprobe _do_fork $stack0:s32 $stack0:u32 $stack0:x32 $stack0:b8@4/32' > kprobe_events
+grep testprobe kprobe_events
+test -d events/kprobes/testprobe
+
+echo 1 > events/kprobes/testprobe/enable
+( echo "forked")
+echo 0 > events/kprobes/testprobe/enable
+ARGS=`tail -n 1 trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+
+check_types() {
+  X1=`printf "%x" $1 | tail -c 8`
+  X2=`printf "%x" $2`
+  X3=`printf "%x" $3`
+  test $X1 = $X2
+  test $X2 = $X3
+  test 0x$X3 = $3
+
+  B4=`printf "%x" $4`
+  B3=`echo -n $X3 | tail -c 3 | head -c 2`
+  test $B3 = $B4
+}
+check_types $ARGS
+
+echo "-:testprobe" >> kprobe_events
+clear_trace
+test -d events/kprobes/testprobe && exit 1 || exit 0