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Andrew Burgess 584a927c5a gdb/fortran: Show the type for non allocated / associated types
Show the type of not-allocated and/or not-associated types.  For array
types and pointer to array types we are going to print the number of
ranks.

Consider this Fortran program:

  program test
    integer, allocatable :: vla (:)
    logical l
    allocate (vla(5:12))
    l = allocated (vla)
  end program test

And this GDB session with current HEAD:

  (gdb) start
  ...
  2	  integer, allocatable :: vla (:)
  (gdb) n
  4	  allocate (vla(5:12))
  (gdb) ptype vla
  type = <not allocated>
  (gdb) p vla
  $1 = <not allocated>
  (gdb)

And the same session with this patch applied:

  (gdb) start
  ...
  2	  integer, allocatable :: vla (:)
  (gdb) n
  4	  allocate (vla(5:12))
  (gdb) ptype vla
  type = integer(kind=4), allocatable (:)
  (gdb) p vla
  $1 = <not allocated>
  (gdb)

The type of 'vla' is now printed correctly, while the value itself
still shows as '<not allocated>'.  How GDB prints the type of
associated pointers has changed in a similar way.

gdb/ChangeLog:

	* f-typeprint.c (f_print_type): Don't return early for not
	associated or not allocated types.
	(f_type_print_varspec_suffix): Add print_rank parameter and print
	ranks of array types in case they dangling.
	(f_type_print_base): Add print_rank parameter.

gdb/testsuite/ChangeLog:

	* gdb.fortran/pointers.f90: New file.
	* gdb.fortran/print_type.exp: New file.
	* gdb.fortran/vla-ptype.exp: Adapt expected results.
	* gdb.fortran/vla-type.exp: Likewise.
	* gdb.fortran/vla-value.exp: Likewise.
	* gdb.mi/mi-vla-fortran.exp: Likewise.
2019-06-16 00:29:35 +01:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.