Add test for $$vars, $$params, $$locals.

1 files changed, 32 insertions, 0 deletions

diff --git a/testsuite/systemtap.base/vars.exp b/testsuite/systemtap.base/vars.exp
new file mode 100644
index 00000000..7541c01b
--- /dev/null
+++ b/testsuite/systemtap.base/vars.exp
@@ -0,0 +1,32 @@
+# Script for testing $$vars, $$parms, $$locals
+    
+set test "vars"
+
+# grab C statement that $$vars yields
+set cmd [concat stap -p3 -e {"probe kernel.statement(\"bio_copy_user@fs/bio.c+1\") \{print (\$\$vars)\}"} 2>&1 | grep {"printf.*="} | sed -e {"s/^.*MAXSTRINGLEN, \"//"} -e {s/..\".*$//}]
+catch {eval exec $cmd} vars
+
+# grab C statement that $$parms yields
+set cmd [regsub "vars" $cmd "parms"]
+catch {eval exec $cmd} parms
+
+# grab C statement that $$locals yields
+set cmd [regsub "parms" $cmd "locals"]
+catch {eval exec $cmd} locals
+
+# syntax check of $$vars C statement
+set vars_ok [regexp "(\[a-z_\]+=%#llx *)+" $vars]
+if {!$vars_ok} {
+    fail "$test"
+} else {
+    pass "$test"
+}
+
+# $$vars should be equivalent to $$parms + $$locals
+if {![string equal [string trim $vars] \
+      		   [string trim [concat $parms " " $locals]]]} {
+    fail "$test parms/locals"
+} else {
+    pass "$test parms/locals"
+}
+