From: Alexander van Heukelum <heukelum@mailshack.com>
Date: Fri, 21 Nov 2008 15:41:55 +0000 (+0100)
Subject: x86: introduce save_rest and restructure the PTREGSCALL macro in entry_64.S
X-Git-Tag: v2.6.29-rc1~587^2~1^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c002a1e6b6b6f07ae04e68987054bf1f2150ae48;p=pandora-kernel.git

x86: introduce save_rest and restructure the PTREGSCALL macro in entry_64.S

Impact: cleanup

The save_rest function completes a partial stack frame for use
by the PTREGSCALL macro. This also avoids the indirect call in
PTREGSCALLs.

This adds the macro movq_cfi_restore to hide the CFI_RESTORE
annotation when restoring a register from the stack frame.

Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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