From: Andrew Cagney <ac131313@ges.redhat.com>
To: Jim Blandy <jimb@redhat.com>
Cc: Daniel Jacobowitz <drow@mvista.com>,
Andrew Cagney <ac131313@cygnus.com>,
James Cownie <jcownie@etnus.com>,
gdb@sources.redhat.com
Subject: Re: GDB support for thread-local storage
Date: Thu, 27 Jun 2002 08:13:00 -0000 [thread overview]
Message-ID: <3D1B2B81.7020506@ges.redhat.com> (raw)
In-Reply-To: <npr8it2uat.fsf@zwingli.cygnus.com>
> Andrew Cagney <ac131313@ges.redhat.com> writes:
>
>> > Doesn't libthread_db read `struct _pthread_descr_struct' from the
>> > linuxthreads library in the inferior, rather than knowing the layout
>> > itself? So it's actually the inferior's linuxthreads library that
>> > describes its own structures' layout.
>
>>
>> The structure layout will have been compiled into libthread-db.a. It
>> implicitly knows the layout itself.
>
>
> I think you're wrong here. Could you show me the code?
Sorry, you've lost me.
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/linuxthreads/descr.h?rev=1.3&content-type=text/x-cvsweb-markup&cvsroot=glibc
> struct _pthread_descr_struct {
> /* XXX Remove this union for IA-64 style TLS module */
> union {
> struct {
> void *tcb; /* Pointer to the TCB. This is not always
> the address of this thread descriptor. */
> union dtv *dtvp;
> pthread_descr self; /* Pointer to this structure */
> } data;
> void *__padding[16];
> } p_header;
> pthread_descr p_nextlive, p_prevlive;
> /* Double chaining of active threads */
> pthread_descr p_nextwaiting; /* Next element in the queue holding the thr */
> pthread_descr p_nextlock; /* can be on a queue and waiting on a lock */
> pthread_t p_tid; /* Thread identifier */
> int p_pid; /* PID of Unix process */
Note the use of ISA/ABI dependant data types such as ``int'', ``void
*'', ... As such they are implicitly included in and compiled into
libhread-db.a
enjoy,
Andrew
next prev parent reply other threads:[~2002-06-27 15:13 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1024952640.13693.ezmlm@sources.redhat.com>
2002-06-25 1:48 ` James Cownie
2002-06-25 8:05 ` Daniel Jacobowitz
2002-06-25 8:31 ` James Cownie
2002-06-25 8:42 ` Daniel Jacobowitz
2002-06-25 8:53 ` James Cownie
2002-06-25 8:56 ` Daniel Jacobowitz
2002-06-25 9:11 ` James Cownie
2002-06-25 9:29 ` Daniel Jacobowitz
2002-06-25 10:44 ` Andrew Cagney
2002-06-25 10:02 ` Daniel Jacobowitz
2002-06-26 12:45 ` Jim Blandy
2002-06-26 19:31 ` Andrew Cagney
2002-06-26 21:57 ` Jim Blandy
2002-06-27 8:13 ` Andrew Cagney [this message]
2002-08-19 9:05 ` Daniel Jacobowitz
2003-02-17 18:07 [maint] The GDB maintenance process Daniel Jacobowitz
2003-02-17 21:01 ` Elena Zannoni
2003-02-19 1:49 ` Daniel Jacobowitz
2003-02-19 2:26 ` Joel Brobecker
2003-02-19 15:43 ` Andrew Cagney
2003-02-19 16:29 ` Daniel Jacobowitz
2003-02-19 22:04 ` Andrew Cagney
2003-02-19 13:24 ` Daniel Berlin
2003-02-19 15:51 ` Andrew Cagney
2003-02-19 14:50 ` Andrew Cagney
2003-02-19 17:33 ` David Carlton
2003-02-19 17:57 ` Kevin Buettner
2003-02-19 18:56 ` Andrew Cagney
2003-02-19 20:39 ` Christopher Faylor
2003-02-19 23:17 ` Jason Molenda
2003-02-20 1:53 ` Christopher Faylor
2003-02-19 19:35 ` David Carlton
2003-02-20 18:32 ` Richard Earnshaw
2003-02-22 0:53 ` Andrew Cagney
2003-02-19 15:12 ` Andrew Cagney
2003-02-19 15:21 ` Daniel Jacobowitz
2003-02-19 16:24 ` Andrew Cagney
2003-02-19 18:36 ` Christopher Faylor
2003-02-19 23:36 ` Jason Molenda
2003-02-19 23:52 ` Andrew Cagney
2003-02-19 23:59 ` Jason Molenda
2003-02-20 0:16 ` Elena Zannoni
2003-02-20 0:21 ` Andrew Cagney
2003-02-18 2:39 ` Andrew Cagney
2003-02-18 4:28 ` Andrew Cagney
2003-02-19 3:49 ` Jim Blandy
2003-02-19 16:14 ` Andrew Cagney
2003-02-19 16:31 ` Daniel Jacobowitz
2003-02-19 2:24 ` Jim Blandy
2003-02-19 16:33 ` Andrew Cagney
2003-02-19 22:24 ` Jim Blandy
2003-02-19 22:39 ` Christopher Faylor
2003-02-19 22:53 ` Andrew Cagney
2003-02-19 23:53 ` Elena Zannoni
2003-02-20 1:27 ` Andrew Cagney
2003-02-20 2:48 ` Andrew Cagney
2003-02-21 23:43 ` Andrew Cagney
2003-02-21 23:57 ` Andrew Cagney
2003-02-19 6:05 ` David Carlton
2003-02-23 23:26 ` Mark Kettenis
2003-02-24 7:18 ` Andrew Cagney
[not found] ` <drow@mvista.com>
2003-02-17 18:58 ` Kevin Buettner
2003-10-10 15:30 ` Unambiguously specifying source locations Daniel Jacobowitz
2003-10-10 15:44 ` David Ayers
2003-10-10 15:46 ` Daniel Jacobowitz
2003-10-11 2:21 ` Felix Lee
-- strict thread matches above, loose matches on Subject: below --
2002-06-19 9:00 GDB support for thread-local storage Jim Blandy
2002-06-19 10:08 ` Daniel Berlin
2002-06-19 12:20 ` Jim Blandy
2002-06-19 13:12 ` Daniel Berlin
2002-06-19 13:40 ` Jim Blandy
2002-06-20 18:35 ` Andrew Cagney
2002-06-20 18:48 ` Daniel Jacobowitz
2002-06-21 10:18 ` Andrew Cagney
2002-06-21 10:32 ` Daniel Jacobowitz
2002-06-21 13:08 ` Jim Blandy
2002-06-21 13:18 ` Daniel Jacobowitz
2002-06-21 13:54 ` Jim Blandy
2002-06-21 14:03 ` Daniel Jacobowitz
2002-06-21 14:46 ` Andrew Cagney
2002-06-21 14:55 ` Daniel Jacobowitz
2002-06-21 15:31 ` Andrew Cagney
2002-06-21 22:59 ` Daniel Jacobowitz
2002-06-22 8:22 ` Andrew Cagney
2002-06-24 7:53 ` Daniel Jacobowitz
2002-06-21 16:14 ` Jim Blandy
2002-06-21 22:57 ` Daniel Jacobowitz
2002-06-26 12:37 ` Jim Blandy
2002-06-21 13:20 ` Daniel Jacobowitz
2002-06-21 15:37 ` Jim Blandy
2002-06-21 23:00 ` Daniel Jacobowitz
2002-06-21 12:34 ` Jim Blandy
2002-06-21 12:49 ` Jim Blandy
2002-06-21 18:10 ` Jim Blandy
2002-06-21 20:24 ` Andrew Cagney
2002-06-21 21:09 ` Jim Blandy
2002-06-22 8:31 ` Andrew Cagney
2002-06-21 15:04 ` Andrew Cagney
2002-06-21 15:41 ` Jim Blandy
2002-06-21 15:59 ` Andrew Cagney
2002-06-21 16:08 ` Jim Blandy
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