bf3091bae6
When allowing use of SSE instructions, stack must be aligned to 16 bytes. Adjust x86 entry to C accordingly, by pushing values to maintain the alignment. For some builds, new toolchain and GCC-6.3 could emit SSE instruction 'andps (%esp),%xmm0' with incorrectly aligned esp, raising exception and thus preventing boot. Change-Id: I452d40eadac2b743d0d8431809c9a81bf28c330a Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/18691 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>