libdw: Add dwarf_peel_type. Use it in dwarf_aggregate_size.

Add new function dwarf_peel_type. Some type annotations in DWARF are
specified by modifier tag type wrappers instead of attributes.
For type aliases (typedef) and qualifiers (const, volatile, restrict)
tags dwarf_peel_type follows the DW_AT_type attributes till it finds
a base, user-defined, reference or pointer type DIE.

Use this new function in the backends for return type DIEs (replacing
the existing dwarf_peel_type there) and in dwarf_aggregate_size so
it can provide the sizes for qualified types too. Add a new version
and testcase for the new dwarf_aggregate_size functionality.

Signed-off-by: Mark Wielaard <[email protected]>

1 files changed, 4 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 82779324..0947608d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-10-06  Mark Wielaard  <[email protected]>
+
+	* NEWS: New section 0.161. Add dwarf_peel_type.
+
 2014-08-25  Mark Wielaard  <[email protected]>
 
 	* configure.ac: Set version to 0.160.