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| author | Łukasz Majewski <l.majewski@samsung.com> | 2012-12-05 08:06:37 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-12-07 08:47:52 -0700 |
| commit | 32fc16d7e7a81816ce247b7cd70c94f3210a228b (patch) | |
| tree | 78b4f9231a15b7b441d0978d348e06b15199ade3 /examples | |
| parent | 3fdf7596dff87a79e2b41d07479c608d91d06cb3 (diff) | |
| download | u-boot-imx-32fc16d7e7a81816ce247b7cd70c94f3210a228b.zip u-boot-imx-32fc16d7e7a81816ce247b7cd70c94f3210a228b.tar.gz u-boot-imx-32fc16d7e7a81816ce247b7cd70c94f3210a228b.tar.bz2 | |
fs:ext4:write: Add lldiv and do_div to perform 64-32 bits division
The ext4write code has been using direct calls to 64-32 division
(/ and %).
Officially supported u-boot toolchains (eldk-5.[12].x) generate calls
to __aeabi_uldivmod(), which is niether defined in the toolchain libs
nor u-boot source tree.
Due to that, when the ext4write command has been executed, "undefined
instruction" execption was generated (since the __aeabi_uldivmod()
is not provided).
To fix this error, lldiv() for division and do_div() for modulo have
been used.
Those two functions are recommended for performing 64-32 bit number
division in u-boot.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'examples')
0 files changed, 0 insertions, 0 deletions