From: John Baldwin <jhb@freebsd.org>
To: Pedro Alves <palves@redhat.com>
Cc: gdb-patches@sourceware.org, binutils@sourceware.org
Subject: Re: [PATCH v2 3/6] Display per-thread information for threads in FreeBSD cores.
Date: Mon, 18 Jan 2016 17:06:00 -0000 [thread overview]
Message-ID: <1701896.llh381Sx0a@ralph.baldwin.cx> (raw)
In-Reply-To: <569CDA29.3050000@redhat.com>
On Monday, January 18, 2016 12:27:21 PM Pedro Alves wrote:
> On 01/15/2016 08:13 PM, John Baldwin wrote:
> > On Thursday, January 14, 2016 03:03:50 PM Pedro Alves wrote:
> >> Is this ".thrmisc" section documented somewhere? Could you add a
> >> small comment on what this entry you're skipping means?
> >
> > It is not documented aside from the code unfortunately. :( If I had my
> > way we would be dumping the full ptrace_lwpinfo structure that contains
> > per-LWP info used by the 'nat' target instead (it has other potentially
> > useful information such as the siginfo_t for each thread). At the moment
> > I don't generate a NT_THRMISC note in 'gcore' because 'struct thrmisc' is
> > currently only present in FreeBSD's headers.
>
> I think just having a comment mentioning that this note contains
> the "struct thrmisc" structure, which contains the thread name, would
> be helpful.
Ok.
> But, if this is about the thread name, is there a reason you're hacking it
> through fbsd_core_pid_to_str, rather than hooking this up
> through "thread name" ?
Hmm, would this work for cross-debugging a core file? fbsd_thread_name is
currently only defined for native debugging, whereas core_pid_to_str is a
gdbarch method on the ABI so it can be used to extract thread names from
non-native cores.
Alternatively, would it be best if the core target defined a to_thread_name
method that invoked a new gdbarch method (gdbarch_core_thread_name or the
like) to fetch the thread name?
--
John Baldwin
next prev parent reply other threads:[~2016-01-18 17:06 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-13 21:46 [PATCH v2 0/6] Support kernel-backed user threads on FreeBSD John Baldwin
2016-01-13 21:46 ` [PATCH v2 2/6] Add a psuedosection for the NT_FREEBSD_THRMISC note John Baldwin
2016-01-14 5:30 ` Alan Modra
2016-01-13 21:46 ` [PATCH v2 1/6] Add support to readelf for reading FreeBSD ELF core notes John Baldwin
2016-01-14 5:30 ` Alan Modra
2016-01-14 5:40 ` John Baldwin
2016-01-13 21:46 ` [PATCH v2 3/6] Display per-thread information for threads in FreeBSD cores John Baldwin
2016-01-14 15:03 ` Pedro Alves
2016-01-15 20:23 ` John Baldwin
2016-01-18 12:27 ` Pedro Alves
2016-01-18 17:06 ` John Baldwin [this message]
2016-01-18 17:13 ` Pedro Alves
2016-01-13 21:46 ` [PATCH v2 6/6] Dump register notes for each thread when generating a FreeBSD core John Baldwin
2016-01-14 15:34 ` Pedro Alves
2016-01-13 21:52 ` [PATCH v2 5/6] Add support for LWP-based threads on FreeBSD John Baldwin
2016-01-14 15:29 ` Pedro Alves
2016-01-15 23:54 ` John Baldwin
2016-01-16 14:47 ` Pedro Alves
2016-01-13 21:52 ` [PATCH v2 4/6] Use LWP IDs with ptrace register requests " John Baldwin
2016-01-14 15:07 ` Pedro Alves
2016-01-15 20:23 ` John Baldwin
2016-01-15 21:41 ` Pedro Alves
2016-01-15 23:54 ` John Baldwin
2016-01-16 14:39 ` Pedro Alves
2016-01-16 19:17 ` John Baldwin
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