[coreboot] permissions error building external payload

[David Griffith]

On Wed, 18 May 2016, Martin Roth wrote:

> Hi David,
>  You need to add a rule to payloads/external/Makefile.inc as well.
> Here's a start:
>
> payloads/external/OpenBIOS/openbios/obj-x86/openbios-builtin.elf
> openbios: $(top)/$(DOTCONFIG)
>  $(MAKE) -C payloads/external/OpenBIOS all \
>    CONFIG_OPENBIOS_MASTER=$(CONFIG_OPENBIOS_MASTER) \
>    CONFIG_OPENBIOS_STABLE=$(CONFIG_OPENBIOS_STABLE) \
>    CONFIG_OPENBIOS_REVISION=$(CONFIG_OPENBIOS_REVISION) \
>    CONFIG_OPENBIOS_REVISION_ID=$(CONFIG_OPENBIOS_REVISION_ID)
>
> You'll probably want to add some additional variables to configure
> openbios to use the coreboot toolchain. All of the variables will need
> to be exported or passed on the command line between
> external/Makefile.inc and external/OpenBIOS/Makefile.
>
> With your changes and the ones to Makefile.inc, I get to this point:
>
>    Checking out OpenBIOS from Git
> Cloning into 'openbios'...
> remote: Counting objects: 11801, done.
> remote: Total 11801 (delta 0), reused 0 (delta 0), pack-reused 11801
> Receiving objects: 100% (11801/11801), 2.30 MiB | 1.95 MiB/s, done.
> Resolving deltas: 100% (9310/9310), done.
> Checking connectivity... done.
>        Checking out OpenBIOS revision v1.1
> Already on 'master'
> Your branch is up-to-date with 'origin/master'.
> Switched to a new branch 'coreboot'
>    CONFIG     OpenBIOS v1.1
>    MAKE       OpenBIOS v1.1
> Configuring OpenBIOS on amd64 for x86
> ERROR: no i486 cross-compiler found !
> make[1]: *** [build] Error 1

I forgot to mention payloads/external/Makefile.inc.  Here is the entry I 
made:

payloads/external/OpenBIOS/openbios/obj-x86/openbios-builtin.elf openbios:
         $(MAKE) -C payloads/external/OpenBIOS all \
                 HOSTCC="$(HOSTCC)" \
                 CONFIG_OPENBIOS_DEVEL=$(CONFIG_OPENBIOS_MASTER) \
                 CONFIG_OPENBIOS_STABLE=$(CONFIG_OPENBIOS_STABLE) \
                 CONFIG_OPENBIOS_REVISION=$(CONFIG_OPENBIOS_REVISION) \
                 CONFIG_OPENBIOS_REVISION_ID=$(CONFIG_OPENBIOS_REVISION_ID)

With your example, I doubt it would get to the point where I got stuck 
because you don't have the x86 cross-compiler installed.

-- 
David Griffith
dave at 661.org