abuild: add -L|--clang to enable clang builds

Change-Id: I11053456fd90cda07143b76de49c2804e38f06e0
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5739
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: use bash

I don't think all /bin/sh implement all features used
in xcompile.

Change-Id: Ida2a166242201ed0221316b123888127c83bf3c1
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5740
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: slightly refactor variable expansion magic

Change-Id: Iebe071c863c6c7139128a2ec59acfb9da0f83512
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5741
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: fail earlier on missing host tools

No need to test all the cross compiler things if
there's no host compiler or iasl.
Also test that the alternatives work, instead of
assuming iasl or cc are in the path.

Change-Id: I1d2293873f4bf1bb525d794851ec20adddb05ac6
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5742
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: actually use "special compile flags" idea

xcompile used to test for special ARM flags - that were
empty.
Meanwhile, -Wa,--divide, which is only useful on i386-elf
was tested for on arm and aarch64, too

Change-Id: I1a5a1bc40fa1040d0939038b073aef31c72d0c6f
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5743
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: move tempfile cleanup closer together

Change-Id: I4fb3041d505402de3cbcd7ec079dde5e168a90cf
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5744
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
xcompile: break out big loop content into function

Change-Id: Id98afa956a2af7113a6ef848b436d661a1fa39f2
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5745
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
drivers/pc80/Kconfig: simplify PS/2 selection rules

There's no need to state the dependency twice.

Change-Id: Ia241d441211c6f476d0a6ed7589b038f7a220265
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5633
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>