AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/arch/tile/kernel/vdso
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Chris Metcalf 4a556f4f56 tile: implement gettimeofday() via vDSO 
This change creates the framework for vDSO calls, makes the existing
rt_sigreturn() mechanism use it, and adds a fast gettimeofday().
Now that we need to expose the vDSO address to userspace, we add
AT_SYSINFO_EHDR to the set of aux entries provided to userspace.
(You can disable any extra vDSO support by booting with vdso=0,
but the rt_sigreturn vDSO page will still be provided.)

Note that glibc has supported the tile vDSO since release 2.17.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-08-13 16:26:21 -04:00
..
Makefile tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vdso32.S tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vdso.lds.S tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vdso.S tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vgettimeofday.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vrt_sigreturn.S tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00