[Bug c++/15008] New: Lookup of base types with virtual functions is broken

[Bug c++/15008] New: Lookup of base types with virtual functions is broken

[andre.poenitz at digia dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15008

             Bug #: 15008
           Summary: Lookup of base types with virtual functions is broken
           Product: gdb
           Version: 7.5
            Status: NEW
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned@sourceware.org
        ReportedBy: andre.poenitz@digia.com
    Classification: Unclassified


In the following code I would expect 'ptype A' to find A, no matter whether foo
is declared virtual or not"


    struct A { };
    struct B : A { };
    struct C : B { virtual void foo() { } };

    struct D : C
    {
        void foo()
        {
            // Break here.
            // (gdb) ptype A
            // -> Type D has no component named A.
            A *b = 0;
        }

        void bar()
        {
            // Break here.
            // (gdb) ptype A
            // -> Type D has no component named A.
            A *b = 0;
        }
    };

    int main()
    {
        // Break here.
        // (gdb) ptype A
        // -> type = struct A { ... }
        D d;
        d.foo();
        d.bar();
    }


    // Note: If the 'virtual' is removed from C::foo(),
    // ptype A works in both D::foo() and D::bar()

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[Bug c++/15008] Lookup of base types with virtual functions is broken

[tromey at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15008

Tom Tromey <tromey at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING
                 CC|                            |tromey at redhat dot com

--- Comment #1 from Tom Tromey <tromey at redhat dot com> 2013-01-10 14:52:40 UTC ---
I tried this with today's git master using the Fedora 16 gcc.
It worked fine:

Breakpoint 3, main () at pr.cc:29
29            D d;
(gdb) ptype A
type = struct A {
}
(gdb) c
Continuing.

Breakpoint 1, D::foo (this=0x7fffffffe400) at pr.cc:12
12                A *b = 0;
(gdb) ptype A
type = struct A {
}
(gdb) c
Continuing.

Breakpoint 2, D::bar (this=0x7fffffffe400) at pr.cc:20
20                A *b = 0;
(gdb) ptype A
type = struct A {
}

I also tried 7.5, and it did fail there.

Could you try a newer gdb?
I wonder if this is PR 8888.

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[Bug c++/15008] Lookup of base types with virtual functions is broken

[tromey at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15008

Tom Tromey <tromey at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |7.6

--- Comment #2 from Tom Tromey <tromey at redhat dot com> ---
I think it was fixed in 7.6.

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