[PATCH 7/9] Handle DWARF5 defaulted member function encodings.

[Mark Wielaard <mark@klomp.org>]

Add DW_DEFAULTED_no, DW_DEFAULTED_in_class and DW_DEFAULTED_out_of_class
to dwarf.h.

Print value (no, in_class or out_of_class) of DW_AT_defaulted in readelf.

Signed-off-by: Mark Wielaard <mark@klomp.org>
---
 ChangeLog       |  3 ++-
 NEWS            |  4 ++--
 libdw/ChangeLog |  5 +++++
 libdw/dwarf.h   |  8 ++++++++
 src/ChangeLog   |  7 +++++++
 src/readelf.c   | 28 ++++++++++++++++++++++++++++
 6 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7748f13..b4722db 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,7 @@
 2017-07-26  Mark Wielaard  <mark@klomp.org>
 
-	* NEWS: Mention new DWARF5 calling conventions.
+	* NEWS: Mention new DWARF5 calling conventions and defaulted member
+	function.
 
 2017-07-26  Mark Wielaard  <mark@klomp.org>
 
diff --git a/NEWS b/NEWS
index 409805e..5f85fc2 100644
--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,7 @@
 Version 0.170
 
-libdw: Added new DWARF5 attribute, tag, character encoding, language code
-       and calling convention constants to dwarf.h.
+libdw: Added new DWARF5 attribute, tag, character encoding, language code,
+       calling convention and defaulted member function constants to dwarf.h.
        New function dwarf_default_lower_bound.
 
 strip: Add -R, --remove-section=SECTION and --keep-section=SECTION.
diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index 1c4eb36..a74733c 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,5 +1,10 @@
 2017-07-26  Mark Wielaard  <mark@klomp.org>
 
+	* dwarf.h: Add DW_DEFAULTED_no, DW_DEFAULTED_in_class and
+	DW_DEFAULTED_out_of_class.
+
+2017-07-26  Mark Wielaard  <mark@klomp.org>
+
 	* dwarf.h: Add DW_CC_pass_by_reference and DW_CC_pass_by_reference.
 
 2017-07-26  Mark Wielaard  <mark@klomp.org>
diff --git a/libdw/dwarf.h b/libdw/dwarf.h
index de8f7e5..82a68f2 100644
--- a/libdw/dwarf.h
+++ b/libdw/dwarf.h
@@ -729,6 +729,14 @@ enum
     DW_DSC_range = 1
   };
 
+/* DWARF defaulted member function encodings.  */
+enum
+  {
+    DW_DEFAULTED_no = 0,
+    DW_DEFAULTED_in_class = 1,
+    DW_DEFAULTED_out_of_class = 2
+  };
+
 
 /* DWARF standard opcode encodings.  */
 enum
diff --git a/src/ChangeLog b/src/ChangeLog
index f92f10d..3ebc704 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2017-07-26  Mark Wielaard  <mark@klomp.org>
+
+	* readelf.c (dwarf_defaulted_string): New function.
+	(dwarf_defaulted_name): Likewise.
+	(attr_callback): Use dwarf_defaulted_name to get value of
+	DW_AT_defaulted.
+
 2017-07-20  Mark Wielaard  <mark@klomp.org>
 
 	* strip.c (handle_elf): Deal with data marker symbols pointing to
diff --git a/src/readelf.c b/src/readelf.c
index 40d4913..5e1685d 100644
--- a/src/readelf.c
+++ b/src/readelf.c
@@ -3797,6 +3797,23 @@ dwarf_access_string (unsigned int code)
 
 
 static const char *
+dwarf_defaulted_string (unsigned int code)
+{
+  static const char *const known[] =
+    {
+#define DWARF_ONE_KNOWN_DW_DEFAULTED(NAME, CODE) [CODE] = #NAME,
+      DWARF_ALL_KNOWN_DW_DEFAULTED
+#undef DWARF_ONE_KNOWN_DW_DEFAULTED
+    };
+
+  if (likely (code < sizeof (known) / sizeof (known[0])))
+    return known[code];
+
+  return NULL;
+}
+
+
+static const char *
 dwarf_visibility_string (unsigned int code)
 {
   static const char *const known[] =
@@ -4002,6 +4019,14 @@ dwarf_access_name (unsigned int code)
 
 
 static const char *
+dwarf_defaulted_name (unsigned int code)
+{
+  const char *ret = dwarf_defaulted_string (code);
+  return string_or_unknown (ret, code, 0, 0, false);
+}
+
+
+static const char *
 dwarf_visibility_name (unsigned int code)
 {
   const char *ret = dwarf_visibility_string (code);
@@ -6053,6 +6078,9 @@ attr_callback (Dwarf_Attribute *attrp, void *arg)
 	case DW_AT_accessibility:
 	  valuestr = dwarf_access_name (num);
 	  break;
+	case DW_AT_defaulted:
+	  valuestr = dwarf_defaulted_name (num);
+	  break;
 	case DW_AT_visibility:
 	  valuestr = dwarf_visibility_name (num);
 	  break;
-- 
1.8.3.1