PR4166: Allow array-like indexing on pointers

* dwflpp.cxx (dwflpp::translate_components): let pointers get treated
  the same as arrays, and add a final DIE dereference for array access.
* loc2c.c (c_translate_array): tolerate pointer types
* testsuite/systemtap.base/pointer_array.*: new test

1 files changed, 2 insertions, 1 deletions

diff --git a/loc2c.c b/loc2c.c
index 5f4e4495..15434632 100644
--- a/loc2c.c
+++ b/loc2c.c
@@ -1745,7 +1745,8 @@ c_translate_array (struct obstack *pool, int indent,
 		   Dwarf_Die *typedie, struct location **input,
 		   const char *idx, Dwarf_Word const_idx)
 {
-  assert (dwarf_tag (typedie) == DW_TAG_array_type);
+  assert (dwarf_tag (typedie) == DW_TAG_array_type ||
+          dwarf_tag (typedie) == DW_TAG_pointer_type);
 
   ++indent;