cannot print allocatable arrays

cannot print allocatable arrays

[Lurkos]

I'm using gdb 7.0.1-debian and gfortran 4.4.5 on Debian squeeze amd64.

I'm not able to print arrays that are declared as allocatable.
It seems that gdb is not able to detect the correct size of the array
allocated run-time.
Is there a different way to print the values in this case?

Thank you.

+++ Test case 1: allocatable array +++
---------- code ----------
program arrshow
  implicit none
  integer,parameter :: n = 5
  integer,allocatable,dimension(:) :: vect
  integer :: i

  allocate(vect(n))

  do i=1,n
    vect(i) = i
  enddo
  
  write(unit=*,fmt=*) vect
  
  deallocate(vect)
endprogram arrshow
---------- gdb ----------
(gdb) p vect
$1 = ()
(gdb) ptype vect
type = integer(kind=4) (0:-1)

+++ Test case 2: static array +++
---------- code ----------
program arrshow
  implicit none
  integer,parameter :: n = 5
  integer,dimension(n) :: vect
  integer :: i

  do i=1,n
    vect(i) = i
  enddo
  
  write(unit=*,fmt=*) vect
endprogram arrshow
---------- gdb ----------
(gdb) p vect
$1 = (1, 2, 3, 4, 5)
(gdb) ptype vect
type = integer(kind=4) (5)

-- 
Lurkos

Re: cannot print allocatable arrays

[Jan Kratochvil]

On Fri, 23 Sep 2011 16:46:10 +0200, Lurkos wrote:
> I'm using gdb 7.0.1-debian and gfortran 4.4.5 on Debian squeeze amd64.
> 
> I'm not able to print arrays that are declared as allocatable.

This works in archer-jankratochvil-vla branch
	http://sourceware.org/gdb/wiki/ArcherBranchManagement
and Fedora GDBs; even there it has some limitations for complicated data
structures but in general it works.

Not sure when it gets merged, it needs to be mostly rewritten.  There are
AFAIK also some independent efforts for this feature for GDB.


Regards,
Jan

Re: cannot print allocatable arrays

[Joachim Protze]

On 23.09.2011 16:46, Lurkos wrote:
> I'm using gdb 7.0.1-debian and gfortran 4.4.5 on Debian squeeze amd64.
>
> I'm not able to print arrays that are declared as allocatable.
> It seems that gdb is not able to detect the correct size of the array
> allocated run-time.
> Is there a different way to print the values in this case?
>
> Thank you.
For debugging fortran90 code you may want to use a patched version of
gdb as recommended in
http://sourceware.org/bugzilla/show_bug.cgi?id=9395#c1

- Joachim

Re: cannot print allocatable arrays

[Lurkos]

*Jan Kratochvil* wrote:

>> I'm using gdb 7.0.1-debian and gfortran 4.4.5 on Debian squeeze amd64.
>> 
>> I'm not able to print arrays that are declared as allocatable.
>
> This works in archer-jankratochvil-vla branch
> 	http://sourceware.org/gdb/wiki/ArcherBranchManagement
> and Fedora GDBs; even there it has some limitations for complicated data
> structures but in general it works.
>
> Not sure when it gets merged, it needs to be mostly rewritten.  There are
> AFAIK also some independent efforts for this feature for GDB.

I have almost zero experience with git.
I read GDB wiki and also a couple of howtos about git.
I'm not sure if I have to clone gdb repository
(git://sourceware.org/git/gdb.git) or archer
(git://sourceware.org/git/archer.git) to merge archer-jankratochvil-vla
branch into mainline.

Can you please give me just a couple of hints and/or a suggestion of a
good reference to get started with git?

Thank!

-- 
Lurkos

Re: cannot print allocatable arrays

[Lurkos]

*Lurkos* wrote:

> I'm not sure if I have to clone gdb repository
> (git://sourceware.org/git/gdb.git) or archer
> (git://sourceware.org/git/archer.git) to merge archer-jankratochvil-vla
> branch into mainline.

I tried to do the following:
1. install "flex bison libncurses5-dev"
2. git clone git://sourceware.org/git/archer.git
3. git checkout -tb
archer-jankratochvil-vla origin/archer-jankratochvil-vla
4. ./configure
5. make

The new gdb in gdb/ folder seems working fine, at least with the
previous test case.

-- 
Lurkos