From: "H.J. Lu" <hjl.tools@gmail.com>
To: Alan Modra <amodra@gmail.com>
Cc: John Baldwin <jhb@freebsd.org>,
Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
Binutils <binutils@sourceware.org>, GDB <gdb@sourceware.org>
Subject: Re: Are ppc*_elf_write_core_note Os-specific?
Date: Tue, 19 Jan 2016 16:41:00 -0000 [thread overview]
Message-ID: <CAMe9rOpk6-QrhmUvG17LdGdXXhvkBwQSSw6egrEMQP9CLFYpdg@mail.gmail.com> (raw)
In-Reply-To: <20160119031407.GD17028@bubble.grove.modra.org>
On Mon, Jan 18, 2016 at 7:14 PM, Alan Modra <amodra@gmail.com> wrote:
> On Tue, Jan 19, 2016 at 10:48:19AM +1030, Alan Modra wrote:
>> PowerPC64 glibc even now doesn't defing prstatus32_t. :-( It seems
>> only sparc and s390 do so. So PowerPC would need a
>> hosts/powerpc-linux.h to define them for Linux, with some configury
>> changes, like hosts/x86-64linux.h does for x86-64 Linux. I'll see
>> about making those changes.
>>
>> Note that elf_backend_write_core_note is defined for x86-64, arm and
>> aarch64 too. The ARM and AARCH64 functions look to be completely
>> redundant, and I suspect all of them could disappear if we modify the
>> generic code to handle prstatusx32_t for x86-64.
>
> Actually, there is a reason for the ARM and AARCH64 functions.
> See https://sourceware.org/ml/binutils/2011-10/msg00202.html
> Note the followup emails too..
>
> So it seems that with the current infrastructure we can either support
> core file generation on remote (linux) targets, or core file
> generation on more native targets (freebsd). Alternatively, we'd
> need to use separate bfd target vectors for linux and freebsd, which
> can and will cause multiple target matches.
>
> Do we really want non-native core file generation?
>
Any changes shouldn't introduce regressions. I don't see why
elf_backend_write_core_note can't handle all targets BFD supports
since note_type is unique to each OS. BFD just needs to provide
proper types independent of host header files, similar to
hosts/x86-64linux.h.
--
H.J.
next prev parent reply other threads:[~2016-01-19 16:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1736699.V7zq9VJIrx@ralph.baldwin.cx>
[not found] ` <20160119001819.GB17028@bubble.grove.modra.org>
2016-01-19 3:14 ` Alan Modra
2016-01-19 10:26 ` Pedro Alves
2016-01-19 16:41 ` H.J. Lu [this message]
2016-01-19 19:01 ` John Baldwin
2016-01-19 19:08 ` H.J. Lu
2016-01-19 19:32 ` John Baldwin
2016-01-19 19:35 ` H.J. Lu
2016-01-19 20:29 ` John Baldwin
2016-01-19 20:54 ` Pedro Alves
2016-01-19 21:20 ` H.J. Lu
2016-01-19 21:24 ` H.J. Lu
2016-01-19 22:52 ` Pedro Alves
2016-01-20 3:07 ` Alan Modra
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