GTK/GLIB port for mipsel

GTK/GLIB port for mipsel

[olegol]

Hello,

I'm working on building (cross-compiling) GTK for mipsel.
Currently I'm in the process of installing GLIB. I could 
manage to successfully pass its configure script, but 
when running make I get an error on the gatomic.c 
(unsupported asm instructions). Looking there I've found 
out that there is no port for mipsel (neither mips) for 
that functionality. I checked in the glib CVS, and there 
is nothing about that there either.
Anyway, I suspect that porting of glib is more than just 
writing these 50 lines of asm code, so probably I need a 
mipsel port.
Unfortunately, I could not find the port in the internet -
 the only reference I've found is the Debian mipsel port, 
but it contains only binaries in libraries' packets. 
Supposedly there are source packages available from this 
page: http://packages.debian.org/stable/libs/libglib2.0-0
but trying to download it I constantly see the 
message "packages.debian.org is down at the moment due to 
performance issues."

Can anybody here point me to a source where I can 
download a glib and gtk ports for mipsel, or at least get 
more info on this.

With respect,
Oleg Kruzhkov

Re: GTK/GLIB port for mipsel

[Stephen P. Becker]

> Can anybody here point me to a source where I can 
> download a glib and gtk ports for mipsel, or at least get 
> more info on this.

Well, it wouldn't surprise me if something is broken, as I get the 
feeling that the GNOME folks are notorious for doing unportable crap in 
their code.  However, GTK/glib builds and works just fine for me.  I 
suspect that either something is broken in your cross-compile setup, or 
you might be using ancient versions of these packages.  I have both 
glib-2.8.5 and gtk+-2.8.10 installed on my (big-endian) machines here 
without any problems.

-Steve

Re: Re: GTK/GLIB port for mipsel

[olegol]

>> Can anybody here point me to a source where I can 
>> download a glib and gtk ports for mipsel, or at least 
get 
>> more info on this.
>
>Well, it wouldn't surprise me if something is broken, as 
I get the 
>feeling that the GNOME folks are notorious for doing 
unportable crap in 
>their code.  However, GTK/glib builds and works just 
fine for me.  I 
>suspect that either something is broken in your cross-
compile setup, or 
>you might be using ancient versions of these packages.  
I have both 
>glib-2.8.5 and gtk -2.8.10 installed on my (big-endian) 
machines here 
>without any problems.

I'm trying to install glib 2.8.3 (I do not think it is 
too much different from 2.8.5). I have little-endian mips 
architecture (mipsel) and am installing the library on 
the RedHat Linux with core 2.4 (both on a target and on a 
host).
I'm using the following parameters with configure:
./configure --prefix=<path> --build=mipsel-linux --
host=i686-linux --with-libiconv=gnu

Do you have you gtk/glib compiled from the sources on 
your machine or just a binaries installed? Do you have 
a ./glib/gatomic.c file compiled? I do not quite 
understand how that can be (I could not see there a 
section for MIPS/MIPSEL). Also, do you have any of the 
G_ATOMIC_<platform> macros defined in the config.h file?

With respect,
Oleg Kruzhkov

Re: GTK/GLIB port for mipsel

[Stephen P. Becker]

> I'm trying to install glib 2.8.3 (I do not think it is 
> too much different from 2.8.5). I have little-endian mips 
> architecture (mipsel) and am installing the library on 
> the RedHat Linux with core 2.4 (both on a target and on a 
> host).

Well, my machines use 2.6 kernel and headers, however I don't think that 
is the problem and/or answer in this case.


> I'm using the following parameters with configure:
> ./configure --prefix=<path> --build=mipsel-linux --
> host=i686-linux --with-libiconv=gnu

That shouldn't be a problem as far as I can see.  For what it's worth, 
my glib was configured with:

./configure --prefix=/usr --host=mips64-unknown-linux-gnu 
--mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share 
--sysconfdir=/etc --localstatedir=/var/lib --with-threads=posix 
--disable-gtk-doc --build=mips64-unknown-linux-gnu


> Do you have you gtk/glib compiled from the sources on 
> your machine or just a binaries installed?

Compiled from sources (natively, not cross-compiled).  I do use Gentoo 
after all...


> Do you have a ./glib/gatomic.c file compiled?

Sure do:

cthulhu .libs # file gatomic.o
gatomic.o: ELF 32-bit MSB relocatable, MIPS, N32 MIPS-IV version 1 
(SYSV), not stripped


> I do not quite understand how that can be (I could not see there a 
> section for MIPS/MIPSEL). Also, do you have any of the 
> G_ATOMIC_<platform> macros defined in the config.h file?

I suspect that glib is broken for cross-compile in this way.  It is 
probably detecting that your host i686 install can use asm code for 
atomic operations, and thus enables it, which of course kills your 
build.  Natively, it looks like it does the RightThing(TM):

checking whether to use assembler code for atomic operations... none

-Steve

Re: Re: GTK/GLIB port for mipsel

[olegol]

>I suspect that glib is broken for cross-compile in this 
way.  It is 
>probably detecting that your host i686 install can use 
asm code for 
>atomic operations, and thus enables it, which of course 
kills your 
>build.  Natively, it looks like it does the RightThing
(TM):
>
>checking whether to use assembler code for atomic 
operations... none

Steve, you are absolutely correct!
I've just encountered the same thing.
I fixed the configure script and it now does not forces 
the atomic operations to be compiled in asm - it takes C 
implementation instead.

Thanks a lot!

With respect,
Oleg Kruzhkov