From: Simon Marchi <simark@simark.ca>
To: Tom de Vries <tdevries@suse.de>, gdb-patches@sourceware.org
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>
Subject: Re: [PATCH][gdb/symtab] Handle DW_AT_string_length with location list
Date: Fri, 15 Oct 2021 11:22:10 -0400 [thread overview]
Message-ID: <db9c790c-0c1f-7eff-88a2-967e35bf6025@simark.ca> (raw)
In-Reply-To: <20211014195815.GA11048@delia>
On 2021-10-14 3:58 p.m., Tom de Vries via Gdb-patches wrote:
> Hi,
>
> Consider a fortran routine where a string variable s is modified:
> ...
> subroutine f(s)
> character*(*) s
> print *, s
> s(1:3) = 'oof'
> print *, s
> end subroutine f
> ...
>
> When compiling with optimization level -O1 and printing the type of
> variable s we get:
> ...
> $ gdb -q -batch outputs/gdb.opt/fortran-string/fortran-string \
> -ex "b f" \
> -ex run \
> -ex "ptype s"
> Breakpoint 1 at 0x4006f7: file fortran-string.f90, line 21.
>
> Breakpoint 1, f (s=..., _s=_s@entry=3) at fortran-string.f90:21
> 21 subroutine f(s)
> type = character*1
I'm not familiar with fortran, does this notation ("character*1") have a
meaning in fortran?
Again, I don't know anything about fortran, but the change in dwarf2/read.c
looks good to me.
Simon
next prev parent reply other threads:[~2021-10-15 15:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 19:58 Tom de Vries via Gdb-patches
2021-10-15 15:22 ` Simon Marchi [this message]
2021-10-15 16:08 ` Tom de Vries via Gdb-patches
2021-10-28 8:44 ` Tom de Vries via Gdb-patches
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