[SeaBIOS] Compiling SeaBIOS for coreboot has problems with its ACPI code

[Kevin O'Connor]

On Thu, Jul 26, 2012 at 11:25:51AM +0200, Idwer Vollering wrote:
> 2012/7/26 Kevin O'Connor <kevin at koconnor.net>:
> > On Wed, Jul 25, 2012 at 02:45:31PM +0200, Idwer Vollering wrote:
> >> 2012/7/25 Kevin O'Connor <kevin at koconnor.net>:
> >> > On Wed, Jul 25, 2012 at 01:44:20PM +0200, Idwer Vollering wrote:
> >> >> Unmodified tree, at 9d6bac1d32b72cdf7c0ad009c1371a2e69084de3
> >> >
> >> > At a guess, the iasl warnings are confusing the
> >> > acpi_extract_preprocess.py script.  What version of iasl do you have?
> >>
> >> The distribution version is iasl 20120620-1: ASL Optimizing Compiler
> >> version 20120620-64 [Jun 24 2012]
> >> coreboot build: ASL Optimizing Compiler version 20120420-64 [Jul 13 2012]
> >
> > Does the patch below fix this for you?
> 
> Unfortunately it doesn't fix this, I just tested a 'regular' compile
> (make menuconfig and exit without changing any option) which seems to
> stop with the same errors.
> 
> With this patch (and reverting the change to src/acpi-dsdt.dsl) I see
> some progress (see below for the resulting output of make):
> 
> diff --git a/Makefile b/Makefile
> index dfdec5c..b55705b 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -97,7 +97,7 @@ ifeq "$(COMPSTRAT)" "1"
>  # First method - use -fwhole-program without -combine.
>  define whole-compile
>  @echo "  Compiling whole program $3"
> -$(Q)printf '$(foreach i,$2,#include "../$i"\n)' > $3.tmp.c
> +$(Q)printf '$(foreach i,$2,#include "../$i")\n' >> $3.tmp.c
>  $(Q)$(CC) $1 -fwhole-program -DWHOLE_PROGRAM -c $3.tmp.c -o $3
>  endef

I don't understand why you're changing the makefile.

[...]
>   Linking out/rom16.o
> ld -T out/romlayout16.lds out/code16.o -o out/rom16.o
> out/code16.o: In function `handle_12':
> /home/idwer/coreboot/git/seabios/out/../src/misc.c:29: undefined
> reference to `__debug_enter'

This is typically due to oddities with the compiler.  What version of
compiler and binutils do you have?  Can you tar up the "out/"
directory and email it to me?

-Kevin