diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/h8300/lib/strncpy.S | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/h8300/lib/strncpy.S')
| -rw-r--r-- | kernel/arch/h8300/lib/strncpy.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/kernel/arch/h8300/lib/strncpy.S b/kernel/arch/h8300/lib/strncpy.S new file mode 100644 index 000000000..d00396a37 --- /dev/null +++ b/kernel/arch/h8300/lib/strncpy.S @@ -0,0 +1,34 @@ +;;; strncpy.S + +#include <asm/linkage.h> + + .text +.global strncpy_from_user + +;;; long strncpy_from_user(void *to, void *from, size_t n) +strncpy_from_user: + mov.l er2,er2 + bne 1f + sub.l er0,er0 + rts +1: + mov.l er4,@-sp + sub.l er3,er3 +2: + mov.b @er1+,r4l + mov.b r4l,@er0 + adds #1,er0 + beq 3f + inc.l #1,er3 + dec.l #1,er2 + bne 2b +3: + dec.l #1,er2 +4: + mov.b r4l,@er0 + adds #1,er0 + dec.l #1,er2 + bne 4b + mov.l er3,er0 + mov.l @sp+,er4 + rts |