[Bug fortran/15353] New: ptype/whatis doesn't handle DW_TAG_namelist

[Bug fortran/15353] New: ptype/whatis doesn't handle DW_TAG_namelist

[burnus at gmx dot de]

http://sourceware.org/bugzilla/show_bug.cgi?id=15353

             Bug #: 15353
           Summary: ptype/whatis doesn't handle DW_TAG_namelist
           Product: gdb
           Version: 7.5
            Status: NEW
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned@sourceware.org
        ReportedBy: burnus@gmx.de
                CC: jan.kratochvil@redhat.com, sanimir.agovic@intel.com
    Classification: Unclassified


Vaguely related to bug 15209.

Example:
        integer :: aa,bb
        namelist /nml/ aa
        aa = 5
        end
generates
 <2><1a9>: Abbrev Number: 3 (DW_TAG_namelist)
    <1aa>   DW_AT_name        : nml
    <1ae>   DW_AT_sibling     : <0x1b8>
 <3><1b2>: Abbrev Number: 4 (DW_TAG_namelist_item)
    <1b3>   DW_AT_namelist_items: <0x1b8>
 <2><1b8>: Abbrev Number: 5 (DW_TAG_variable)
    <1b9>   DW_AT_name        : aa


I would expect that gdb prints something like
  type = namelist /nml/ aa

Currently, it does not recognize "nml".


DW_TAG_namelist is part of DWARF2.

See also:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37132
http://gcc.gnu.org/ml/gcc-patches/2013-04/msg00560.html

-- 
Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Bug fortran/15353] ptype/whatis doesn't handle DW_TAG_namelist

[burnus at gmx dot de]

https://sourceware.org/bugzilla/show_bug.cgi?id=15353

--- Comment #1 from Tobias Burnus <burnus at gmx dot de> ---
GCC 4.9 now supports DW_TAG_namelist. A special case is:
  module mm
    integer :: aa, bb
    namelist /nml/ aa, bb
  end module mm

  subroutine test()
    use mm, only: nml
    write(*,nml)
  end subroutine test

for which GCC/gfortran - at least when compiled in two files - generates a
DW_TAG_imported_declaration with DW_TAG_namelist and *no* DW_TAG_namelist_item
(but: DW_AT_declaration = 1). In that case, gdb has to find the
DW_TAG_namelist_item from the module.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug fortran/15353] ptype/whatis doesn't handle DW_TAG_namelist

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=15353

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |12.1
         Resolution|---                         |FIXED
                 CC|                            |tromey at sourceware dot org

--- Comment #2 from Tom Tromey <tromey at sourceware dot org> ---
I believe this was fixed by 

commit e951225303b7d0565c985e2d562d3787983ff06f
Author: Bhuvanendra Kumar N <Bhuvanendra.KumarN@amd.com>
Date:   Wed Feb 2 17:52:27 2022 +0000

    gdb/fortran: support ptype and print commands for namelist variables

-- 
You are receiving this mail because:
You are on the CC list for the bug.