Re: [OpenBIOS] Compiling Openbios with Sparc cross compiler

[Blue Swirl]

On Fri, Jun 1, 2012 at 12:48 AM, P. Wilhelm  wrote:
> I've tried to set up a new machine to compile Openbios for Sparc32. The
> machine is x86. OS is Arch Linux. I got all tools from the Arch packages
> except binutils (2.22) and gcc (4.7.0) source.
>
> I used configuration parameters for sparc-elf-gcc as given by Blue last year
> on this group. But, I keep running into a compile error for the bootstrap
> that says that __u32 is not defined (also __u64).

This should not happen, please post the complete error message.
Probably some recent code expects system headers to provide __u32
which is nonstandard.

I'm using these:
$ sparc-elf-gcc -v
Using built-in specs.
COLLECT_GCC=sparc-elf-gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/sparc-elf/4.7.0/lto-wrapper
Target: sparc-elf
Configured with: ../configure --target=sparc-elf
--enable-targets=sparc-elf --disable-nls --disable-threads
--enable-languages=c --disable-shared --disable-libssp
--disable-multilib
Thread model: single
gcc version 4.7.0 (GCC)
$ sparc64-elf-gcc -v
Using built-in specs.
COLLECT_GCC=sparc64-elf-gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/sparc64-elf/4.6.0/lto-wrapper
Target: sparc64-elf
Configured with: ../configure --target=sparc64-elf
--enable-targets=sparc64-elf --disable-nls --disable-threads
--enable-languages=c --disable-shared --disable-libssp
--enable-multilib
Thread model: single
gcc version 4.6.0 20100925 (experimental) (GCC)
$ powerpc-elf-gcc-4.6.0 -v
Using built-in specs.
COLLECT_GCC=powerpc-elf-gcc-4.6.0
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/powerpc-elf/4.6.0/lto-wrapper
Target: powerpc-elf
Configured with: ../configure --target=powerpc-elf
--enable-targets=powerpc-elf --disable-nls --disable-threads
--enable-languages=c --disable-shared --disable-libssp
--disable-multilib
Thread model: single
gcc version 4.6.0 20100925 (experimental) (GCC)
$ powerpc64-linux-gcc-4.6.0 -v
Using built-in specs.
COLLECT_GCC=powerpc64-linux-gcc-4.6.0
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/powerpc64-linux/4.6.0/lto-wrapper
Target: powerpc64-linux
Configured with: ../configure --target=powerpc64-linux
--enable-targets=powerpc64-linux --disable-nls --disable-threads
--enable-languages=c --disable-shared --disable-libssp
--disable-multilib --disable-decimal-float
Thread model: single
gcc version 4.6.0 20100925 (experimental) (GCC)

I think GCC 4.7.0 miscompiles OpenBIOS for PPC, or rather more
probably our libgcc does not match theirs.
> Web searches point to a similar issue about a year ago with ppc, but nothing
> recent or related to Sparc32. Any pointers to what I might be doing wrong
> are appreciated.
>
> The x86 gcc is the generic Arch gcc that comes with the base system.
>
> Respectfully,
> Paul W.