Google Breakpad DWARF reader: Add a handler function for DIE references.

Add a new member function to dwarf2reader::Dwarf2Handler,
ProcessAttributeReference, for reporting attribute values that are
references to other DIEs. This handler member function always receives
an absolute offset (that is, relative to the start of the .debug_info
section, not to the start of the compilation unit), regardless of the
form the attribute uses. (Some forms are CU-relative, some are
absolute.)

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@482 4c0a9323-5329-0410-9bdc-e9ce6186880e

1 files changed, 10 insertions, 0 deletions

diff --git a/src/common/dwarf/functioninfo.h b/src/common/dwarf/functioninfo.h
index 740f1463..3351c67c 100644
--- a/src/common/dwarf/functioninfo.h
+++ b/src/common/dwarf/functioninfo.h
@@ -146,6 +146,16 @@ class CUFunctionInfoHandler: public Dwarf2Handler {
                                         enum DwarfForm form,
                                         uint64 data);
 
+  // Called when we have an attribute with a DIE reference to give to
+  // our handler.  The attribute is for the DIE at OFFSET from the
+  // beginning of the .debug_info section, has a name of ATTR, a form of
+  // FORM, and the offset of the referenced DIE from the start of the
+  // .debug_info section is in DATA.
+  virtual void ProcessAttributeReference(uint64 offset,
+                                         enum DwarfAttribute attr,
+                                         enum DwarfForm form,
+                                         uint64 data);
+
   // Called when we have an attribute with string data to give to
   // our handler.  The attribute is for the DIE at OFFSET from the
   // beginning of the .debug_info section, has a name of ATTR, a form of