[U-Boot] [PATCH] JFFS2: Fix undefined reference to `__aeabi_uldivmod' error

[Daniel Schwierzeck]

2013/10/27 Wolfgang Denk <wd at denx.de>:
> Building boards that have JFFS2 support enabled will fail when using
> U-Boot's builtin GCC library, for example like this:
>
> USE_PRIVATE_LIBGCC=yes ./MAKEALL omap3_evm
> ...
> fs/jffs2/libjffs2.o: In function `jffs2_1pass_build_lists':
> fs/jffs2/jffs2_1pass.c:1441: undefined reference to `__aeabi_uldivmod'

I recently noticed a similar problem on MIPS too:

fs/jffs2/libjffs2.o: In function `jffs2_get_list':
jffs2_1pass.c:(.text.jffs2_get_list+0x5c): undefined reference to `__udivdi3'

Your patch solves it, thanks.
Tested-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>

>
> This is caused by a u64 / u32 division in jffs2_1pass.c; the problem
> can be avoided by using do_div() instead of plain division.
>
> Signed-off-by: Wolfgang Denk <wd at denx.de>
> Reported-by: Chris Ruehl <chris.ruehl at gtsys.com.hk>
> Cc: Chris Ruehl <chris.ruehl at gtsys.com.hk>
>
> ---
>  fs/jffs2/jffs2_1pass.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/jffs2/jffs2_1pass.c b/fs/jffs2/jffs2_1pass.c
> index c856983..a7dbe79 100644
> --- a/fs/jffs2/jffs2_1pass.c
> +++ b/fs/jffs2/jffs2_1pass.c
> @@ -1438,7 +1438,7 @@ jffs2_1pass_build_lists(struct part_info * part)
>  {
>         struct b_lists *pL;
>         struct jffs2_unknown_node *node;
> -       u32 nr_sectors = part->size/part->sector_size;
> +       u32 nr_sectors = do_div(part->size, part->sector_size);
>         u32 i;
>         u32 counter4 = 0;
>         u32 counterF = 0;
> --
> 1.8.3.1
>
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-- 
Best regards,
Daniel