From: Pedro Alves <pedro@codesourcery.com>
To: gdb-patches@sourceware.org
Cc: Doug Evans <dje@google.com>
Subject: Re: [RFA]: handle_extended_wait: Call linux_resume_one_lwp instead of ptrace
Date: Sun, 24 May 2009 17:00:00 -0000 [thread overview]
Message-ID: <200905241800.42885.pedro@codesourcery.com> (raw)
In-Reply-To: <20090524031422.C486F846C2@localhost>
On Sunday 24 May 2009 04:14:22, Doug Evans wrote:
> There are some things that linux_resume_one_lwp does that either
> all callers of ptrace (PTRACE_CONT) should do (check errno)
> or would be nice to do (print a debugging message).
> I was thinking of splitting linux_resume_one_lwp into two,
> but since the newly created thread is, well, new the rest of
> linux_resume_one_lwp is a nop; so it seems reasonable to just call
> linux_resume_one_lwp for the new thread.
> It's also nice to have all calls to ptrace (PTRACE_CONT)
> routed through one function.
Agreed. It doesn't look like there are extra syscalls and
it's all O(1) in that fast path.
>
> Ok to check in?
> [tested on amd64 w/ --target_board=native-gdbserver, no regressions]
>
> 2009-05-23 Doug Evans <dje@google.com>
>
> * linux-low.c (handle_extended_wait): Use linux_resume_one_lwp
> to resume the newly created thread, don't call ptrace (PTRACE_CONT)
> directly.
Ok.
--
Pedro Alves
prev parent reply other threads:[~2009-05-24 17:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-24 3:14 Doug Evans
2009-05-24 17:00 ` Pedro Alves [this message]
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