From: Chris Metcalf Date: Wed, 7 Aug 2013 19:33:32 +0000 (-0400) Subject: tile: implement gettimeofday() via vDSO X-Git-Tag: v3.12-rc1~120^2~43 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a556f4f56da3110b27e265b79f0e7582115445c;p=pandora-kernel.git 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 --- Reading git-diff-tree failed