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

…

vdso32.S

…

vdso.lds.S

…

vdso.S

…

vgettimeofday.c

…

vrt_sigreturn.S

…