I am tired of dumping entire DIEs just to see what type they are. With
this patch, we get:
(gdb) print context_die
$5 = <dw_die_ref 0x7ffff6de0230 DW_TAG_module <parent=0x7ffff6de0000
DW_TAG_compile_unit>>
I know it's past the end of stage1, but this debugging aid can help in
fixing bugs in stage >= 3.
I am committing this to the [debug-early] branch, but I am hoping I can
also commit it to mainline and avoid dragging it along.
OK for mainline?
commit e20f40f92eeba51f9a1ffb078e060366e7beb471
Author: Aldy Hernandez <al...@redhat.com>
Date: Tue Dec 9 13:04:46 2014 -0800
* gdbhooks.py (class DWDieRefPrinter): New class.
(build_pretty_printer): Register dw_die_ref's.
diff --git a/gcc/gdbhooks.py b/gcc/gdbhooks.py
index a74e712..26affd9 100644
--- a/gcc/gdbhooks.py
+++ b/gcc/gdbhooks.py
@@ -253,6 +253,26 @@ class CGraphNodePrinter:
return result
######################################################################
+# Dwarf DIE pretty-printers
+######################################################################
+
+class DWDieRefPrinter:
+ def __init__(self, gdbval):
+ self.gdbval = gdbval
+
+ def to_string (self):
+ result = '<dw_die_ref 0x%x' % long(self.gdbval)
+ if long(self.gdbval) == 0:
+ return '<dw_die_ref 0x0>'
+ result += ' %s' % self.gdbval['die_tag']
+ if long(self.gdbval['die_parent']) != 0:
+ result += ' <parent=0x%x %s>' % (long(self.gdbval['die_parent']),
+
self.gdbval['die_parent']['die_tag'])
+
+ result += '>'
+ return result
+
+######################################################################
class GimplePrinter:
def __init__(self, gdbval):
@@ -455,6 +475,8 @@ def build_pretty_printer():
'tree', TreePrinter)
pp.add_printer_for_types(['cgraph_node *'],
'cgraph_node', CGraphNodePrinter)
+ pp.add_printer_for_types(['dw_die_ref'],
+ 'dw_die_ref', DWDieRefPrinter)
pp.add_printer_for_types(['gimple', 'gimple_statement_base *',
# Keep this in the same order as gimple.def:
