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Re: set print null-stop
Jan, thanks for help.
You won't belive:
pit@debian:~/src/test$ echo 'char str[7]="i=0";main(){}'|gcc -x c - -g;gdb -nx ./a.out
GNU gdb (GDB) 7.0.1-debian
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
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and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/pit/src/test/a.out...done.
(gdb) p str
$1 = "i=0\000\000\000"
(gdb) set print null-stop
(gdb) p str
$2 = ""
(gdb)
I'll check out latest GDB version as soon as i can, but this particular version (7.0.1, Deban squeeze x86) seems having kind of bug
Alex
On Sun, 23 Jan 2011 14:20:05 +0100
Jan Kratochvil <jan.kratochvil@redhat.com> wrote:
> On Sat, 22 Jan 2011 09:40:56 +0100, Alexander Petukhov wrote:
> > Hello, maling list.
> > Can't make "set print null-stop" work as written in manual.
> > For example:
> >
> > char str[7];
> > sprintf(str, "i=%i", 0);
> >
> > (gdb) p str
> > $1 = "i=0\000\017\377\267"
> > (gdb) set print null-stop
> > (gdb) p str
> > $2 = ""
> >
> > Does this feature work or I'm doing something wrong?
>
> Works for me:
>
> echo 'char str[7]="i=0";main(){}'|gcc -x c - -g;./gdb -nx ./a.out
> GNU gdb (GDB) 7.2.50.20110123-cvs
> This GDB was configured as "x86_64-unknown-linux-gnu".
> (gdb) p str
> $1 = "i=0\000\000\000"
> (gdb) set print null-stop
> (gdb) p str
> $2 = "i=0"
>
>
> > Another question - is there a corresponding gdm/mi command?
>
> String AFAIK has to be read in MI char-by-char so it is irrelevant.
>
> -var-create a * str
> ^done,name="a",numchild="7",value="[7]",type="char [7]",has_more="0"
> -var-evaluate-expression a
> ^done,value="[7]"
> -var-create - * str[0]
> ^done,name="var1",numchild="0",value="105 'i'",type="char",has_more="0"
> -var-create - * str[1]
> ^done,name="var2",numchild="0",value="61 '='",type="char",has_more="0"
>
>
> Regards,
> Jan
>
--
Best regards,
Alexander Petukhov <Alexander.Petukhov@mail.ru>