public inbox for gdb-patches@sourceware.org
 help / color / mirror / Atom feed
From: Andreas Arnez <arnez@linux.vnet.ibm.com>
To: "Ulrich Weigand" <uweigand@de.ibm.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH v3 2/3] gdbserver: Prevent stale/random values in register cache
Date: Thu, 11 Dec 2014 17:05:00 -0000	[thread overview]
Message-ID: <87bnnam820.fsf@br87z6lw.de.ibm.com> (raw)
In-Reply-To: <201412101913.sBAJDpc9007580@d03av02.boulder.ibm.com> (Ulrich	Weigand's message of "Wed, 10 Dec 2014 20:13:50 +0100 (CET)")

On Wed, Dec 10 2014, Ulrich Weigand wrote:

> Andreas Arnez wrote:
>
>> @@ -52,6 +52,11 @@ get_thread_regcache (struct thread_info *thread, int fetch)
>>        struct thread_info *saved_thread = current_thread;
>>  
>>        current_thread = thread;
>> +#ifndef IN_PROCESS_AGENT
>> +      /* Invalidate all registers, to prevent stale left-overs.  */
>> +      memset (regcache->register_status, REG_UNAVAILABLE,
>> +	      regcache->tdesc->num_registers);
>> +#endif
>>        fetch_inferior_registers (regcache, -1);
>>        current_thread = saved_thread;
>>        regcache->registers_valid = 1;
>
> The whole get_thread_regcache routine is already under #ifndef IN_PROCESS_AGENT,
> so the ifdef seems redundant here.

Correct ;-)  Will be removed in the next version.

  reply	other threads:[~2014-12-11 17:05 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-09 13:59 [PATCH v3 0/3] gdbserver: Fix support for S390 TDB Andreas Arnez
2014-12-09 13:59 ` [PATCH v3 1/3] gdbserver: Rephrase loops in regsets_fetch/store_inferior_registers Andreas Arnez
2014-12-09 13:59 ` [PATCH v3 2/3] gdbserver: Prevent stale/random values in register cache Andreas Arnez
2014-12-10 19:14   ` Ulrich Weigand
2014-12-11 17:05     ` Andreas Arnez [this message]
2014-12-09 13:59 ` [PATCH v3 3/3] S390: Fix gdbserver support for TDB Andreas Arnez
2014-12-10 19:16   ` Ulrich Weigand
2014-12-11 17:04     ` Andreas Arnez
2014-12-11 20:16       ` Ulrich Weigand

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87bnnam820.fsf@br87z6lw.de.ibm.com \
    --to=arnez@linux.vnet.ibm.com \
    --cc=gdb-patches@sourceware.org \
    --cc=uweigand@de.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).