coreboot semi-harmless bug hangs build of cbfstool if you aren't careful

[Danny Milosavljevic]

Hello,

I've set up libreboot (and GuixSD) on a X200. I'm writing this from the
newly set up machine, so a lot worked already. Great!

However, now I want to switch Ctrl and Fn to have Ctrl to the left and
unfortunately the libreboot rom from the release on the libreboot
website used CONFIG_STATIC_OPTION_TABLE=y , which means I can't persist
the setting across reboots.

In order to find that out I had to somehow get the config options and
so after reading the docs I came across 
  $ grep CONFIG_ x200_8mb/x200_8mb_ukqwerty_vesafb.rom
Binary file x200_8mb/x200_8mb_ukqwerty_vesafb.rom matches

which didn't work. But
  $ grep -a CONFIG_ x200_8mb/x200_8mb_ukqwerty_vesafb.rom |grep OPTION_
CONFIG_USE_OPTION_TABLE=y
CONFIG_STATIC_OPTION_TABLE=y
CONFIG_HAVE_OPTION_TABLE=y

did.

However, idwer mentioned a tool called "cbfstool" in coreboot which is
supposed to be the normal way to do that.

So I checked out coreboot from git, went into coreboot/util/cbfstool
and said

$ make

/gnu/store/cpx9iibpdwi3wb81glpnnlxr9zra2iiv-bash-4.3.39/bin/bash: cc:
command not found

Which is a GuixSD problem I guess. But after some prodding

$ make HOSTCC=gcc

lex  -t --header-file=fmd_scanner.h fmd_scanner.l >fmd_scanner.c
/gnu/store/cpx9iibpdwi3wb81glpnnlxr9zra2iiv-bash-4.3.39/bin/bash: lex:
command not found make: *** No rule to make target 'fmd_scanner.c',
needed by '.dependencies'.  Stop.

$ ls -l fmd_scanner.c
-rw-r--r-- 1 dannym users 0 Aug  7 23:35 fmd_scanner.c

But then:

$ make HOSTCC=gcc
(endless loop that uses very little CPU commences)

Also,

$ make clean

doesn't get rid of fmd_scanner.c (which *does* exist) so it's difficult
to find the cause.

With kind regards,
   Danny

[Julius Werner]

I think this was http://review.coreboot.org/#/c/10212. It should've
changed the filenames in cbfstool/Makefile in the same manner as
cbfstool/Makefile.inc. Should be pretty simple to fix. (I don't think
many people build cbfstool standalone, and apparently neither does
Jenkins... so this is easy to miss.)

On Fri, Aug 7, 2015 at 2:44 PM, Danny Milosavljevic
 wrote:
> Hello,
>
> I've set up libreboot (and GuixSD) on a X200. I'm writing this from the
> newly set up machine, so a lot worked already. Great!
>
> However, now I want to switch Ctrl and Fn to have Ctrl to the left and
> unfortunately the libreboot rom from the release on the libreboot
> website used CONFIG_STATIC_OPTION_TABLE=y , which means I can't persist
> the setting across reboots.
>
> In order to find that out I had to somehow get the config options and
> so after reading the docs I came across
>   $ grep CONFIG_ x200_8mb/x200_8mb_ukqwerty_vesafb.rom
> Binary file x200_8mb/x200_8mb_ukqwerty_vesafb.rom matches
>
> which didn't work. But
>   $ grep -a CONFIG_ x200_8mb/x200_8mb_ukqwerty_vesafb.rom |grep OPTION_
> CONFIG_USE_OPTION_TABLE=y
> CONFIG_STATIC_OPTION_TABLE=y
> CONFIG_HAVE_OPTION_TABLE=y
>
> did.
>
> However, idwer mentioned a tool called "cbfstool" in coreboot which is
> supposed to be the normal way to do that.
>
> So I checked out coreboot from git, went into coreboot/util/cbfstool
> and said
>
> $ make
>
> /gnu/store/cpx9iibpdwi3wb81glpnnlxr9zra2iiv-bash-4.3.39/bin/bash: cc:
> command not found
>
> Which is a GuixSD problem I guess. But after some prodding
>
> $ make HOSTCC=gcc
>
> lex  -t --header-file=fmd_scanner.h fmd_scanner.l >fmd_scanner.c
> /gnu/store/cpx9iibpdwi3wb81glpnnlxr9zra2iiv-bash-4.3.39/bin/bash: lex:
> command not found make: *** No rule to make target 'fmd_scanner.c',
> needed by '.dependencies'.  Stop.
>
> $ ls -l fmd_scanner.c
> -rw-r--r-- 1 dannym users 0 Aug  7 23:35 fmd_scanner.c
>
> But then:
>
> $ make HOSTCC=gcc
> (endless loop that uses very little CPU commences)
>
> Also,
>
> $ make clean
>
> doesn't get rid of fmd_scanner.c (which *does* exist) so it's difficult
> to find the cause.
>
> With kind regards,
>    Danny