According to coreboots payload API [1], the called payload should be
able to return a value via %eax. Support this by changing the prototype
of start_main() and pass on the return value of main() to the caller
instead of discarding it.
[1] https://www.coreboot.org/Payload_API
BUG=none
BRANCH=none
TEST=none
Change-Id: I1782c45b615d431de8be5a533d5890ed53ddb9d8
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Commit-Id: 7b681c5926
Original-Change-Id: I8442faea19cc8e04487092f8e61aa4e5cba3ba76
Original-Signed-off-by: Mathias Krause <minipli@googlemail.com>
Original-Reviewed-on: https://review.coreboot.org/18334
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/444815