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
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Makefile
vdso32.S
vdso.lds.S
vdso.S
vgettimeofday.c
vrt_sigreturn.S