* fortran character strings in common blocks
@ 2005-08-02 16:16 Jack Howarth
2005-08-03 2:44 ` Wu Zhou
0 siblings, 1 reply; 2+ messages in thread
From: Jack Howarth @ 2005-08-02 16:16 UTC (permalink / raw)
To: gdb
Is gdb supposed to be able to print the values of character strings
that belong to COMMON blocks? I find that a character string declared as...
PARAMETER (COMMAX=132)
CHARACTER*(COMMAX) COMLYN
COMMON /CCOMND/ COMLYN
that I get an error...
(gdb) print COMLYN
No symbol "COMLYN" in current context.
even though I can assign this character string to
a locally declared character string (not in a
COMMON block) and then print this string with gdb.
Thanks in advance for any clarifications on this issue.
Jack
ps This is with gfortran from the current gcc 4.0 branch.
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: fortran character strings in common blocks
2005-08-02 16:16 fortran character strings in common blocks Jack Howarth
@ 2005-08-03 2:44 ` Wu Zhou
0 siblings, 0 replies; 2+ messages in thread
From: Wu Zhou @ 2005-08-03 2:44 UTC (permalink / raw)
To: Jack Howarth; +Cc: gdb, fortran
On Tue, 2 Aug 2005, Jack Howarth wrote:
> Is gdb supposed to be able to print the values of character strings
> that belong to COMMON blocks? I find that a character string declared as...
>
> PARAMETER (COMMAX=132)
> CHARACTER*(COMMAX) COMLYN
>
> COMMON /CCOMND/ COMLYN
>
> that I get an error...
>
> (gdb) print COMLYN
> No symbol "COMLYN" in current context.
>
> even though I can assign this character string to
> a locally declared character string (not in a
> COMMON block) and then print this string with gdb.
> Thanks in advance for any clarifications on this issue.
> Jack
> ps This is with gfortran from the current gcc 4.0 branch.
>
The reason is that gfortran treats common blocks as structure. So gdb
can't handle it at this time. gdb expects it treated as
DW_TAG_common_block. I ever opened a bug on this at GCC bugzilla:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23057
Hope that gfortran community could handle this in a near future.
Regards
- Wu Zhou
^ permalink raw reply [flat|nested] 2+ messages in thread
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