[U-Boot] [PATCH] spl: don't use %.*s with CONFIG_USE_TINY_PRINTF

Tom Rini trini at konsulko.com
Thu Jan 19 04:03:20 CET 2017


On Tue, Jan 17, 2017 at 10:06:26AM +0200, Oded Gabbay wrote:
> On Tue, Jan 17, 2017 at 9:30 AM, Masahiro Yamada
> <yamada.masahiro at socionext.com> wrote:
> > 2016-12-28 16:36 GMT+09:00 Oded Gabbay <oded.gabbay at gmail.com>:
> >> In the tiny-printf implementation, there is no support for %.*s. This patch
> >> checks if CONFIG_USE_TINY_PRINTF is defined and if so, prints a different
> >> debug statement which doesn't use %.*s
> >>
> >> Signed-off-by: Oded Gabbay <oded.gabbay at gmail.com>
> >> Cc: Simon Glass <sjg at chromium.org>
> >> ---
> >>  common/spl/spl.c | 5 +++++
> >>  1 file changed, 5 insertions(+)
> >>
> >> diff --git a/common/spl/spl.c b/common/spl/spl.c
> >> index f7df834..7c4744d 100644
> >> --- a/common/spl/spl.c
> >> +++ b/common/spl/spl.c
> >> @@ -115,9 +115,14 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
> >>                 }
> >>                 spl_image->os = image_get_os(header);
> >>                 spl_image->name = image_get_name(header);
> >> +#ifdef CONFIG_USE_TINY_PRINTF
> >> +               debug("spl: payload image: %s load addr: 0x%x size: %d\n",
> >> +                       spl_image->name, spl_image->load_addr, spl_image->size);
> >> +#else
> >>                 debug("spl: payload image: %.*s load addr: 0x%x size: %d\n",
> >>                         (int)sizeof(spl_image->name), spl_image->name,
> >>                         spl_image->load_addr, spl_image->size);
> >> +#endif
> >>         } else {
> >>  #ifdef CONFIG_SPL_PANIC_ON_RAW_IMAGE
> >
> >
> > Same here.
> >
> > Please do not patch around with CONFIG_USE_TINY_PRINTF.
> >
> > What you need to do is to fix tiny_printf() implementation.
> >
> >
> > --
> > Best Regards
> > Masahiro Yamada
> 
> ok, I can accept that but how would you like to fix it ?

I would suggest un-winding things such that we get useful information in
both cases with USE_TINY_PRINTF being the limiting factor.  I am of the
opinion that USE_TINY_PRINTF should be the default within SPL.

-- 
Tom
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