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

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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
This commit is contained in:
jimblandy 2010-01-12 16:53:02 +00:00
parent 0441036f9e
commit 330ca2f7c7
4 changed files with 70 additions and 31 deletions
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10
src/common/dwarf/dwarf2reader.h
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@ -358,6 +358,16 @@ class Dwarf2Handler {
enum DwarfForm form,
int64 data) { }
// Called when we have an attribute whose value is a reference to
// another DIE. The attribute belongs to the DIE at OFFSET from the
// beginning of the .debug_info section. Its name is ATTR, its form
// is FORM, and the offset of the DIE being referred to from the
// beginning of the .debug_info section is DATA.
virtual void ProcessAttributeReference(uint64 offset,
enum DwarfAttribute attr,
enum DwarfForm form,
uint64 data) { }
// Called when we have an attribute with a buffer of data to give to our
// handler. The attribute is for the DIE at OFFSET from the beginning of the
// .debug_info section. Its name is ATTR, its form is FORM, DATA points to