Decode expression lists used with DW_AT_byte_size and other DWARF attributes.

	PR 22532
	* dwarf.c (read_and_display_attr_value): Add attributes that might
	use the DW_FORM_exprloc form, and if so, display the decoded
	location expression list.

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index eb596d1..ee53c3a 100644 (file)
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,10 @@
+2017-12-18  Nick Clifton  <nickc@redhat.com>
+
+       PR 22532
+       * dwarf.c (read_and_display_attr_value): Add attributes that might
+       use the DW_FORM_exprloc form, and if so, display the decoded
+       location expression list.
+
 2017-12-14  Alan Modra  <amodra@gmail.com>
 
        * testsuite/lib/utils-lib.exp (default_binutils_assemble_flags):

diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index a92e7b1..dec4c2f 100644 (file)
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -2588,6 +2588,22 @@ read_and_display_attr_value (unsigned long           attribute,
        }
       break;
 
+    case DW_AT_data_bit_offset:
+    case DW_AT_byte_size:
+    case DW_AT_bit_size:
+    case DW_AT_string_length_byte_size:
+    case DW_AT_string_length_bit_size:
+    case DW_AT_bit_stride:
+      if (form == DW_FORM_exprloc)
+       {
+         printf ("\t(");
+         (void) decode_location_expression (block_start, pointer_size,
+                                            offset_size, dwarf_version,
+                                            uvalue, cu_offset, section);
+         printf (")");
+       }
+      break;
+
     case DW_AT_import:
       {
        if (form == DW_FORM_ref_sig8