Add tescase for DW_AT_const_value location descriptions.

* testsuite/systemtap.base/const_value.c: New test.
* testsuite/systemtap.base/const_value.exp: Likewise.
* testsuite/systemtap.base/const_value.stp: Likewise.

1 files changed, 31 insertions, 0 deletions

diff --git a/testsuite/systemtap.base/const_value.c b/testsuite/systemtap.base/const_value.c
new file mode 100644
index 00000000..4ff82161
--- /dev/null
+++ b/testsuite/systemtap.base/const_value.c
@@ -0,0 +1,31 @@
+#include "sdt.h"
+
+struct foo
+{
+  const int i;
+  const long j;
+};
+
+typedef struct foo fooer;
+
+static int
+bar (const int i, const long j)
+{
+  return i * j;
+}
+
+// Because of PR10726 we don't want to get this function inlined.
+// We do need -O2 to get the const_value encodings in dwarf.
+static __attribute__((__noinline__)) int
+func (int (*f) ())
+{
+  const fooer baz = { .i = 2, .j = 21 };
+  STAP_PROBE (test, constvalues);
+  return f(baz.i, baz.j);
+}
+
+int
+main (int argc, char *argv[], char *envp[])
+{
+  return func (&bar) - 42;
+}