[PATCH 2/3] tools/firmware: Build firmware as -ffreestanding

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Andrew Cooper writes ("[PATCH 2/3] tools/firmware: Build firmware as 
-ffreestanding"):
> firmware should always have been -ffreestanding, as it doesn't execute in the
> host environment.
> 
> inttypes.h isn't a freestanding header, but the 32bitbios_support.c only wants
> the stdint.h types so switch to the more appropriate include.
> 
> This removes the build time dependency on a 32bit libc just to compile the
> hvmloader and friends.
> 
> Update README and the TravisCI configuration.

> For 4.15.  Build tested in Travis (Ubuntu) and XenServer (CentOS) - no change
> in the compiled HVMLoader binary.  I'm currently rebuilding the containers
> locally to check Arch, Debian and OpenSUSE, but don't anticipate any problems.

Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
Reviewed-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>