Nathan Lynch 069b918623 arm64: vdso: fix coarse clock handling ... When __kernel_clock_gettime is called with a CLOCK_MONOTONIC_COARSE or CLOCK_REALTIME_COARSE clock id, it returns incorrectly to whatever the caller has placed in x2 ("ret x2" to return from the fast path). Fix this by saving x30/LR to x2 only in code that will call __do_get_tspec, restoring x30 afterward, and using a plain "ret" to return from the routine. Also: while the resulting tv_nsec value for CLOCK_REALTIME and CLOCK_MONOTONIC must be computed using intermediate values that are left-shifted by cs_shift (x12, set by __do_get_tspec), the results for coarse clocks should be calculated using unshifted values (xtime_coarse_nsec is in units of actual nanoseconds). The current code shifts intermediate values by x12 unconditionally, but x12 is uninitialized when servicing a coarse clock. Fix this by setting x12 to 0 once we know we are dealing with a coarse clock id. Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>		2014-02-05 11:55:30 +00:00
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.gitignore
gen_vdso_offsets.sh
gettimeofday.S	arm64: vdso: fix coarse clock handling	2014-02-05 11:55:30 +00:00
Makefile	arm64: vdso: prevent ld from aligning PT_LOAD segments to 64k	2014-02-04 17:52:47 +00:00
note.S
sigreturn.S
vdso.lds.S
vdso.S