From: David Laight <David.Laight@ACULAB.COM>
To: 'Alastair D'Silva' <alastair@au1.ibm.com>,
"alastair@d-silva.org" <alastair@d-silva.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
"Karsten Keil" <isdn@linux-pingi.de>,
Jassi Brar <jassisinghbrar@gmail.com>,
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"David S. Miller" <davem@davemloft.net>,
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Kalle Valo <kvalo@codeaurora.org>,
Stanislaw Gruszka <sgruszka@redhat.com>,
Benson Leung <bleung@chromium.org>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
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"Martin K. Petersen" <martin.petersen@oracle.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
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Subject: RE: [PATCH 4/4] lib/hexdump.c: Allow multiple groups to be separated by lines '|'
Date: Wed, 10 Apr 2019 08:45:25 +0000 [thread overview]
Message-ID: <1cd09186c67b4fa4bceb84faf835ff10@AcuMS.aculab.com> (raw)
In-Reply-To: <20190410031720.11067-5-alastair@au1.ibm.com>
From: Alastair D'Silva
> Sent: 10 April 2019 04:17
> With the wider display format, it can become hard to identify how many
> bytes into the line you are looking at.
>
> The patch adds new flags to hex_dump_to_buffer() and print_hex_dump() to
> print vertical lines to separate every N groups of bytes.
>
> eg.
> buf:00000000: 454d414e 43415053|4e495f45 00584544 NAMESPAC|E_INDEX.
> buf:00000010: 00000000 00000002|00000000 00000000 ........|........
Ugg, that is just horrid.
It is enough to add an extra space if you really need the columns
to be more easily counted.
I'm not even sure that is needed if you are printing 32bit words.
OTOH 32bit words makes 64bit values really stupid on LE systems.
Bytes with extra spaces every 4 bytes is the format I prefer
even for long lines.
Oh, and if you are using hexdump() a lot you want a version
that never uses snprintf().
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2019-04-10 8:44 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-10 3:17 [PATCH 0/4] Hexdump enhancements Alastair D'Silva
2019-04-10 3:17 ` [PATCH 1/4] lib/hexdump.c: Allow 64 bytes per line Alastair D'Silva
2019-04-12 13:48 ` Petr Mladek
2019-04-12 23:22 ` Alastair D'Silva
2019-04-15 9:02 ` Petr Mladek
2019-04-15 10:29 ` Alastair D'Silva
2019-04-15 10:56 ` David Laight
2019-04-15 10:59 ` Alastair D'Silva
2019-04-10 3:17 ` [PATCH 2/4] lib/hexdump.c: Optionally suppress lines of filler bytes Alastair D'Silva
2019-04-10 3:32 ` Alastair D'Silva
2019-04-12 14:03 ` Petr Mladek
2019-04-12 23:28 ` Alastair D'Silva
2019-04-15 9:18 ` Petr Mladek
2019-04-15 10:33 ` Alastair D'Silva
2019-04-10 3:17 ` [PATCH 3/4] lib/hexdump.c: Replace ascii bool in hex_dump_to_buffer with flags Alastair D'Silva
2019-04-10 6:56 ` Dan Carpenter
2019-04-12 14:12 ` Petr Mladek
2019-04-12 23:31 ` Alastair D'Silva
2019-04-15 9:24 ` Petr Mladek
2019-04-15 10:07 ` Alastair D'Silva
2019-04-15 10:20 ` David Laight
2019-04-15 10:44 ` Alastair D'Silva
2019-04-15 11:03 ` David Laight
2019-04-15 11:12 ` Alastair D'Silva
2019-04-12 14:47 ` [Intel-gfx] " Tvrtko Ursulin
2019-04-10 3:17 ` [PATCH 4/4] lib/hexdump.c: Allow multiple groups to be separated by lines '|' Alastair D'Silva
2019-04-10 8:45 ` David Laight [this message]
2019-04-10 9:52 ` Alastair D'Silva
2019-04-10 8:53 ` Sergey Senozhatsky
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