On Mon, Jan 21, 2013 at 03:48:42PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> this will allow to have no console support
>
> Use full for bootstrap as we can save 900bytes (barebox.bin) and
> 500bytes (zbarebox.bin lzo) on at91sam9263 as example.
>
> As on bootstrap we have often very limited size.
>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
> ---
> common/Kconfig | 6 ++++
> common/Makefile | 1 +
> common/console_none.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 92 insertions(+)
> create mode 100644 common/console_none.c
>
> diff --git a/common/Kconfig b/common/Kconfig
> index 9d26abb..8704a42 100644
> --- a/common/Kconfig
> +++ b/common/Kconfig
> @@ -506,10 +506,16 @@ config CONSOLE_ACTIVATE_NONE
> endchoice
>
> config CONSOLE_SIMPLE
> + prompt "Enable simple console support"
> bool
> default y
> depends on !CONSOLE_FULL
>
> +config CONSOLE_NONE
> + bool
> + default y
> + depends on !CONSOLE_FULL && !CONSOLE_SIMPLE
> +
This is probably a good moment to convert this to a choice.
> +
> +int printf (const char *fmt, ...)
> +{
> + return 0;
> +}
> +EXPORT_SYMBOL(printf);
Have you tried providing static inline wrappers for these? I would
assume that a lot more space could be saved when gcc is able to optimize
the function calls away.
Sascha
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