[RFC] Fix for mishandling of "break 'pthread_create@GLIBC_2.2.5'"
Paul Pluzhnikov
ppluzhnikov@google.com
Tue May 13 23:02:00 GMT 2008
On Tue, May 13, 2008 at 11:44 AM, Daniel Jacobowitz <drow@false.org> wrote:
> On Tue, May 13, 2008 at 11:35:53AM -0700, Paul Pluzhnikov wrote:
> > 2008-05-13 Paul Pluzhnikov <ppluzhnikov@google.com>
> >
> > * linespec.c (locate_first_half): Rename to...
> > (locate_first_half_1): ... this.
> > (locate_first_half): New fn.
> >
>
> Patch missing?
Sorry 'bout that. It's attached now.
> Rather than making versions special, can we suppress looking for
> fields inside quoted strings? GCC names static variables "foo.1" and
> it's hard to get GDB to display that.
Actually, that appears to already work:
$ cat t.c
#include <pthread.h>
void *fn(void *p)
{
static int zzyx = 24;
return 0;
}
int main()
{
static int zzyx = 42;
pthread_t tid;
pthread_create(&tid, 0, fn, 0);
pthread_join(tid, 0);
return 0;
}
$ gcc -g -o t t.c -pthread
$ gdb/gdb -q ./t
(gdb) b main
Breakpoint 1 at 0x8048412: file t.c, line 12.
(gdb) r
[Thread debugging using libthread_db enabled]
Breakpoint 1, main () at t.c:12
12 pthread_create(&tid, 0, fn, 0);
(gdb) inf var zzyx
All variables matching regular expression "zzyx":
Non-debugging symbols:
0x08049650 zzyx.1565
0x08049654 zzyx.1570
(gdb) p 'zzyx.1565'
$1 = 24
(gdb) p 'zzyx.1570'
$2 = 42
(gdb) q
On Tue, May 13, 2008 at 1:23 PM, Michael Snyder <msnyder@specifix.com> wrote:
>
> FYI, there's a sort-of work-around...
That only sort-of-works because there is a matching non-versioned
symbol. In addition, it's quite annoying for TAB-completion to
complete the symbol, but the result of completion to then not work.
Yes, I could also set breakpoints by address, etc.
But I'd like to make it easy for non-gdb-experts to be able to
set breakpoints.
Thanks,
--
Paul Pluzhnikov
2008-05-13 Paul Pluzhnikov <ppluzhnikov@google.com>
* linespec.c (locate_first_half): Rename to...
(locate_first_half_1): ... this.
(locate_first_half): New fn.
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