At this point, clang can be used on both 32bit and 64bit targets without
issue. Make note of logic we have that will inform clang of the
architecture to build for.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
When build Xen target with Clang, the linker reports failure.
This patch adds the related info in the documentation as a known issue
and gives details for how to dismiss the building failure with Clang.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
* Move README.clang to doc/build/clang.rst and reformat as
reStructeredText.
* Indicate that -ffixed-r9 and -ffixed-x18 are used to reserve registers
for gd.
* Minor editing.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
