[U-Boot] [PATCH] fs/ext4/ext4fs.c, fs/fs.c: Use lldiv and multiplication / subtraction on 64bit ops

[Simon Glass]

Hi Tom,

On 24 November 2014 at 12:55, Simon Glass <sjg at chromium.org> wrote:
> On 24 November 2014 at 09:55, Tom Rini <trini at ti.com> wrote:
>> In some cases we need to do math on 64bit quantities.  We need to be
>> using lldiv in these cases rather than letting the compiler do it.  In
>> addition we need to avoid doing % operations on these same quantities.
>> These changes fix compilation on MIPS/MIPSEL.
>>
>> Cc: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
>> Cc: Suriyan Ramasami <suriyan.r at gmail.com>
>> Cc: Simon Glass <sjg at chromium.org>
>> Signed-off-by: Tom Rini <trini at ti.com>
>
> Reviewed-by: Simon Glass <sjg at chromium.org>

I'm not sure this goes far enough. I am still seeing problems even
with this patch, e.g. for pm9g45:

/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
error: /opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(bpabi.o)
uses VFP register arguments, u-boot does not
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
failed to merge target specific data of file
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(bpabi.o)
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
error: /opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(_divdi3.o)
uses VFP register arguments, u-boot does not
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
failed to merge target specific data of file
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(_divdi3.o)
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
error: /opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(_udivdi3.o)
uses VFP register arguments, u-boot does not
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabihf-ld.bfd:
failed to merge target specific data of file
/opt/linaro/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/libgcc.a(_udivdi3.o)
make[1]: *** [u-boot] Error 1
make: *** [sub-make] Error 2

Regards,
Simon