[Bug cli/16223] New: add "layout mode" to ptype

[Bug cli/16223] New: add "layout mode" to ptype

[tromey at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16223

            Bug ID: 16223
           Summary: add "layout mode" to ptype
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: cli
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at redhat dot com

It would be nice sometimes if ptype had a "layout mode"
that inlined superclass definitions into the structure
layout, so that all the details of a given class could
be seen at once, without needing multiple invocations of ptype.

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[Bug cli/16223] add "layout mode" to ptype

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=16223

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
This would be particularly good for ptype/o

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[Bug cli/16223] add "layout mode" to ptype

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=16223

--- Comment #2 from Tom Tromey <tromey at sourceware dot org> ---
You can see how confusing this is for ptype/o in gdb itself:

/* offset    |  size */  type = struct dwarf2_per_bfd {
                         public:
/*    0      |     8 */    bfd *obfd;
/*    8      |    88 */    struct auto_obstack : public obstack {
/* XXX 80-byte padding  */

                               /* total size (bytes):   88 */
                           } obstack;


Here the "padding" comment is just wrong, but the type-printer
is confused because it doesn't really do anything sensible
with superclasses.

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