Re: [PATCH 1/2] fort_dyn_array: add basic fortran dyn array support

[Yao Qi <qiyaoltc@gmail.com>]

Keven Boell <keven.boell@linux.intel.com> writes:

> Fortran provide types whose values may be dynamically allocated
> or associated with a variable under explicit program control.
> The purpose of this commit is
>   * to read allocated/associated DWARF tags and store them in
>     the dynamic property list of main_type.
>   * enable GDB to print the value of a dynamic array in Fortran
>     in case the type is allocated or associated (pointer to
>     dynamic array).
>
> Examples:
> (gdb) p vla_not_allocated
> $1 = <not allocated>
>
> (gdb) p vla_allocated
> $1 = (1, 2, 3)
>
> (gdb) p vla_ptr_not_associated
> $1 = <not associated>
>
> (gdb) p vla_ptr_associated
> $1 = (1, 2, 3)
>
> Add basic test coverage for most dynamic array use-cases
> in Fortran.
> The commit contains the following tests:
>   * Ensure that values of Fortran dynamic arrays
>     can be evaluated correctly in various ways and states.
>   * Ensure that Fortran primitives can be evaluated
>     correctly when used as a dynamic array.
>   * Dynamic arrays passed to subroutines and handled
>     in different ways inside the routine.
>   * Ensure that the ptype of dynamic arrays in
>     Fortran can be printed in GDB correctly.
>   * Ensure that dynamic arrays in different states
>     (allocated/associated) can be evaluated.
>   * Dynamic arrays passed to functions and returned from
>     functions.
>   * History values of dynamic arrays can be accessed and
>     printed again with the correct values.
>   * Dynamic array evaluations using MI protocol.
>   * Sizeof output of dynamic arrays in various states.
>
> The patch was tested using the test suite on Ubuntu 12.04 64bit.

Hi Keven,
The test cases added by this commit fail on some other OS and targets,
see this thread, https://sourceware.org/ml/gdb-testers/2015-q4/msg02136.html
can you take a look?

-- 
Yao (齐尧)