Re: [PATCH] printk-formats.txt documentation update

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

On Sun, Feb 6, 2011 at 01:15, Andrew Murray <amurray@xxxxxxxxxxx> wrote:
> From: Andrew Murray <amurray@xxxxxxxxxxxxxx>
>
> This patch updates the incomplete documentation concerning the printk
> extended format specifiers.
>
> Signed-off-by: Andrew Murray <amurray@xxxxxxxxxxxxxx>
> ---
> diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
> index 1b5a5dd..df14336 100644
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -9,7 +9,42 @@ If variable is of Type, Â Â Â Â Â Â Â Âuse printk format specifier:
>        Âsize_t         Â%zu or %zx
>        Âssize_t         %zd or %zx
>
> -Raw pointer value SHOULD be printed with %p.
> +Raw pointer value SHOULD be printed with %p. The kernel supports
> +the following extended format specifiers for pointer types:
> +
> + Â Â Â General:
> +
> + Â Â Â %pF Â Â function pointer with offset, e.g. module_start
> +    %pf   function pointer without offset, e.g. module_start+0x0/0x62 [hello]
> + Â Â Â %pS Â Â text symbol with offset
> +    %ps   text symbol without offset
> + Â Â Â %pR Â Â struct resource with decoded flags, e.g. [mem 0x0-0x1f 64 bit pref]
> +    %pr   struct resource with raw flags, e.g. [mem 0x0-0x1f flags 0x201]
> +
> + Â Â Â MAC/FDDI addresses:
> +
> + Â Â Â %pM Â Â colon-seperated 6-byte MAC address in hex notation, e.g. 00:01:02:03:04:05
> +    %pm   non-colon-seperated 6-byte MAC address is hex notation, e.g. 000102030405
> + Â Â Â %pMF Â Â6-byte dash-separated FDDI hex notation
> +
> + Â Â Â IPv4 addresses:
> +
> + Â Â Â %pI4 Â ÂIPv4 dot-seperated decimal without leading 0's, e.g. 1.2.3.4
> + Â Â Â %pi4 Â ÂIPv4 dot-seperated decimal with leading 0's, 001.002.003.004
> + Â Â Â %p[Ii]4[hl] IPv4 dot-seperated decimal with/without leading 0's for
> + Â Â Â Â Â Â Â host (h), little (l) or network/big (default) endian order
> +
> + Â Â Â IPv6 addresses:
> + Â Â Â %pI6 Â ÂIPv6 colon-seperated network-order 16 bit hex with leading 0's,
> + Â Â Â Â Â Â Â e.g. 0001:0203:...:0708
> + Â Â Â %pi6 Â ÂIPv6 non-colon-seperated network-order 16 bit hex with leading 0's,
> + Â Â Â Â Â Â Â e.g. 000102...0f
> +    %pI6c  IPv6 address as described by
> + Â Â Â Â Â Â Â http://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-00,
> + Â Â Â Â Â Â Â e.g. 1::708
> +
> + Â Â Â %pU[bBlL] 16 byte UUID/GUID in big or little endian using lower or upper case
> +

In the mean time, we also got %pV and %pK. Can you please add them as well? Thx!

Gr{oetje,eeting}s,

            Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
             Â Â -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-embedded" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html