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From: "tromey at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/49130] New: discrepancies between DW_AT_name and demangler
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49130

           Summary: discrepancies between DW_AT_name and demangler
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: tromey@gcc.gnu.org


>>From the tail of this email:
http://sourceware.org/ml/gdb-patches/2011-05/msg00524.html

There are a number of places where DW_AT_name disagrees with the demangler:

Computed physname <WTF::FixedArray<double, 8u>::data()> does not match
demangled <WTF::FixedArray<double, 8ul>::data()> (from linkage
<_ZN3WTF10FixedArrayIdLm8EE4dataEv>)
 - FYI its DW_TAG_class_type DW_AT_name is: FixedArray<double, 8u>
Computed physname <WTF::PtrHash<void const*>::hash(void*)> does not match
demangled <WTF::PtrHash<void const*>::hash(void const*)> (from linkage
<_ZN3WTF7PtrHashIPKvE4hashES2_>)
 - const issue
Computed physname <WebCore::RangeBoundaryPoint::offset()> does not match
demangled <WebCore::RangeBoundaryPoint::offset() const> (from linkage
<_ZNK7WebCore18RangeBoundaryPoint6offsetEv>)
 - maybe different const issue


(I didn't verify the const issues in the DWARF, it may be a gdb bug)

I think it would be best if DW_AT_name matched the demangler in all cases.
(I think it is arguable whether DW_AT_name should include the template
parameters; but we should at least discuss on the gdb list before considering
this, and anyway this would require a complete solution to PR 41736)

See also PR 33861