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From: Nick Alcock <nick.alcock@oracle.com>
To: Pedro Alves <palves@redhat.com>
Cc: Joseph Myers <joseph@codesourcery.com>, binutils@sourceware.org
Subject: Re: [PATCH 00/19] libctf, and CTF support for objdump and readelf
Date: Fri, 24 May 2019 20:09:00 -0000	[thread overview]
Message-ID: <87ftp3bon7.fsf@esperi.org.uk> (raw)
In-Reply-To: <2ee54d46-0657-6601-ca69-e2aa447085f4@redhat.com> (Pedro Alves's	message of "Fri, 24 May 2019 17:19:45 +0100")

On 24 May 2019, Pedro Alves told this:

> On 5/24/19 5:04 PM, Nick Alcock wrote:
> If everything works in a cross endianness setting too (e.g., big endian
> host x little endian target) then you're golden.  :-)

It did when I tested it last, which was some weeks ago. The ctf_archive
format is fixed-endian (little-endian): everything else byteswaps at
open time if the magic number suggests it needs to, since at open time
it's reading it all in and blowing the dcache anyway and byteswapping
everything necessary costs nothing. (And means we can ignore endianness
everywhere else in the codebase.)

Note: the original CTF format (as seen on Solaris, FreeBSD etc) is
completely endian-ignorant. It looks like they never considered
endianness at all, so it's totally nonportable to machines of opposing
endianness. Whoops...

  reply	other threads:[~2019-05-24 20:09 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-30 22:57 Nick Alcock
2019-04-30 22:57 ` [PATCH 14/19] libctf: library version enforcement Nick Alcock
2019-04-30 22:57 ` [PATCH 03/19] libctf: lowest-level memory allocation and debug-dumping wrappers Nick Alcock
2019-05-02 15:29   ` Nick Clifton
2019-05-03 19:12     ` Nick Alcock
2019-04-30 22:57 ` [PATCH 12/19] libctf: lookups by name and symbol Nick Alcock
2019-04-30 22:57 ` [PATCH 04/19] libctf: low-level list manipulation and helper utilities Nick Alcock
2019-05-02 16:04   ` Nick Clifton
2019-05-03 19:25     ` Nick Alcock
2019-04-30 22:57 ` [PATCH 11/19] libctf: core type lookup Nick Alcock
2019-04-30 22:57 ` CTF format overview Nick Alcock
2019-04-30 22:57 ` [PATCH 08/19] libctf: creation functions Nick Alcock
2019-04-30 22:57 ` [PATCH 19/19] binutils: CTF support for objdump and readelf Nick Alcock
2019-04-30 22:57 ` [PATCH 09/19] libctf: opening Nick Alcock
2019-04-30 22:57 ` [PATCH 10/19] libctf: ELF file opening Nick Alcock
2019-04-30 22:57 ` [PATCH 06/19] libctf: hashing Nick Alcock
2019-05-02 16:16   ` Nick Clifton
2019-05-03 19:33     ` Nick Alcock
2019-04-30 22:57 ` [PATCH 02/19] include: new header ctf-api.h Nick Alcock
2019-05-02 15:07   ` Nick Clifton
2019-05-03 11:23     ` Nick Alcock
2019-04-30 22:57 ` [PATCH 13/19] libctf: type copying Nick Alcock
2019-04-30 22:57 ` [PATCH 15/19] libctf: mmappable archives Nick Alcock
2019-04-30 22:57 ` [PATCH 05/19] libctf: error handling Nick Alcock
2019-05-02 16:10   ` Nick Clifton
2019-05-03 19:31     ` Nick Alcock
2019-04-30 22:57 ` [PATCH 01/19] include: new header ctf.h: file format description Nick Alcock
2019-05-01 16:57   ` Nick Clifton
2019-05-01 21:29     ` Jim Wilson
2019-05-03 11:15       ` Nick Alcock
2019-04-30 22:58 ` [PATCH 18/19] libctf: build system Nick Alcock
2019-05-01  0:13 ` [PATCH 17/19] libctf: debug dumping Nick Alcock
2019-05-01  0:19 ` [PATCH 16/19] libctf: labels Nick Alcock
2019-05-01  1:57 ` [PATCH 07/19] libctf: implementation definitions related to file creation Nick Alcock
2019-05-01 16:02 ` [PATCH 00/19] libctf, and CTF support for objdump and readelf Nick Clifton
2019-05-01 16:16   ` Jose E. Marchesi
2019-05-03 10:47     ` Nick Alcock
2019-05-02 15:22 ` Joseph Myers
2019-05-03 12:33   ` Nick Clifton
2019-05-06 16:40     ` Nick Alcock
2019-05-08 14:34     ` Michael Matz
2019-05-08 16:01       ` Nick Clifton
2019-05-08 16:20         ` Nick Alcock
2019-05-03 14:23   ` Nick Alcock
     [not found]     ` <alpine.DEB.2.21.1905072117440.19308@digraph.polyomino.org.uk>
2019-05-08 11:39       ` Nick Alcock
2019-05-24  8:57     ` Pedro Alves
2019-05-24 16:05       ` Nick Alcock
2019-05-24 16:19         ` Pedro Alves
2019-05-24 20:09           ` Nick Alcock [this message]
2019-05-03 16:19 ` Florian Weimer
2019-05-03 19:45   ` Nick Alcock
2019-05-06 12:07     ` Florian Weimer

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