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Re: If somebody is interested in porting stuff to cool targets

On Tue, 2007-09-18 at 01:09 +0200, Philip Van Hoof wrote:
> For WinCE I think the steps would go like this:
> o. Download and install http://cegcc.sourceforge.net/ (alien on the RPM
>    works fine on Ubuntu)

I think you can simply use --host=arm-wince-mingw32ce with the
cegcc-mingw32ce-0.50-1.i586.rpm package the the configure line.

> o. Port libiconv and get it compiled

Seems to be a simple compile job. The CeGCC page talks about Unicode on
WinCE, so perhaps read that part too?

export CC=/opt/mingw32ce/bin/arm-wince-mingw32ce-gcc
./configure --host=arm-wince-mingw32ce --prefix=/opt/glib-wince

Gives me something like this.

/opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/errno.h:12:25: error: no include path in which to search for errno.h
In file included from ./loops.h:23,
                 from ./iconv.c:130:
./loop_unicode.h: In function 'unicode_loop_convert':
./loop_unicode.h:191: error: 'errno' undeclared (first use in this function)
./loop_unicode.h:191: error: (Each undeclared identifier is reported only once
./loop_unicode.h:191: error: for each function it appears in.)
./loop_unicode.h:191: error: 'ENOENT' undeclared (first use in this function)

Note that errno.h does not exist on WinCE so this is indeed a piece that
you'll need to port. I guess including Mingw32's errno.h should work?
(errno is not how to do errors on WinCE but it should just work this
way, afaics).

You can of course replace all the errno usages with the proper way how
to do this on WinCE. In that case you might want to contact the upstream
developer of iconv about your plans?


> o. Port pthread-win32 (somebody has been working on hard on getting
>    pthread-win32 ported to WinCE, followup on this work)


export PATH=/opt/mingw32ce/bin/:$PATH
export CFLAGS=-DWINCE
make CROSS=arm-wince-mingw32ce- clean GC-inlined

Gives you similar problems: errno.h can't be found so these compilation
errors make sense.

ptw32_tkAssocCreate.c: In function 'ptw32_tkAssocCreate':
ptw32_tkAssocCreate.c:88: error: 'ENOMEM' undeclared (first use in this function)
ptw32_tkAssocCreate.c:88: error: (Each undeclared identifier is reported only once
ptw32_tkAssocCreate.c:88: error: for each function it appears in.)


ptw32_semwait.c: In function 'ptw32_semwait':
ptw32_semwait.c:74: error: 'EINVAL' undeclared (first use in this function)
ptw32_semwait.c:112: error: 'errno' undeclared (first use in this function)
In file included from private.c:55,


By simply adapting the errno.h in /opt/mingw32ce/arm-wince-mingw32ce/include/errno.h
and using export CFLAGS="-DWINCE -I/opt/mingw32ce/arm-wince-mingw32ce/include/ I
get this result:


pvanhoof schtrumpf:~/Desktop/pthreads-w32-2-8-0-release$ make CROSS=arm-wince-mingw32ce- clean GC-inlined
rm -f *~
rm -f *.i
rm -f *.o
rm -f *.obj
rm -f *.exe
rm -f pthread.def
make XOPT="-DPTW32_BUILD_INLINED" CLEANUP=-D__CLEANUP_C XC_FLAGS=" " OBJ="pthread.o version.o" pthreadGC2.stamp
make[1]: Entering directory `/home/pvanhoof/Desktop/pthreads-w32-2-8-0-release'
arm-wince-mingw32ce-gcc -c -o pthread.o -D__CLEANUP_C -O3 -finline-functions -DPTW32_BUILD_INLINED -I. -DHAVE_CONFIG_H -Wall  pthread.c
In file included from private.c:44,
                 from pthread.c:44:
ptw32_MCS_lock.c: In function 'ptw32_mcs_lock_release':
ptw32_MCS_lock.c:187: warning: dereferencing type-punned pointer will break strict-aliasing rules
ptw32_MCS_lock.c:205: warning: dereferencing type-punned pointer will break strict-aliasing rules
In file included from private.c:48,
                 from pthread.c:44:
ptw32_threadStart.c: In function 'ptw32_threadStart':
ptw32_threadStart.c:349: warning: implicit declaration of function '_endthread'
In file included from barrier.c:43,
                 from pthread.c:46:
pthread_barrier_wait.c: In function 'pthread_barrier_wait':
pthread_barrier_wait.c:56: warning: dereferencing type-punned pointer will break strict-aliasing rules
pthread_barrier_wait.c:90: warning: dereferencing type-punned pointer will break strict-aliasing rules
In file included from cancel.c:44,
                 from pthread.c:47:
pthread_cancel.c:65:2: error: #error Module contains CPU-specific code; modify and recompile.
In file included from cancel.c:44,
                 from pthread.c:47:
pthread_cancel.c: In function 'ptw32_RegisterCancelation':
pthread_cancel.c:96: warning: implicit declaration of function 'PTW32_PROGCTR'
pthread_cancel.c:96: error: invalid lvalue in assignment
In file included from pthread.c:50:
create.c: In function 'pthread_create':
create.c:238: warning: implicit declaration of function '_beginthread'
In file included from misc.c:42,
                 from pthread.c:56:
pthread_once.c: In function 'pthread_once':
pthread_once.c:57: warning: dereferencing type-punned pointer will break strict-aliasing rules
pthread_once.c:61: warning: dereferencing type-punned pointer will break strict-aliasing rules
In file included from nonportable.c:45,
                 from pthread.c:58:
pthread_win32_attach_detach_np.c: In function 'pthread_win32_process_attach_np':
pthread_win32_attach_detach_np.c:118: warning: passing argument 2 of 'GetProcAddressW' from incompatible pointer type
pthread_win32_attach_detach_np.c:159: warning: passing argument 2 of 'GetProcAddressW' from incompatible pointer type
pthread_win32_attach_detach_np.c:183: warning: passing argument 2 of 'GetProcAddressW' from incompatible pointer type
pthread_win32_attach_detach_np.c: In function 'pthread_win32_process_detach_np':
pthread_win32_attach_detach_np.c:239: warning: passing argument 2 of 'GetProcAddressW' from incompatible pointer type
make[1]: *** [pthread.o] Error 1
make[1]: Leaving directory `/home/pvanhoof/Desktop/pthreads-w32-2-8-0-release'
make: *** [GC-inlined] Error 2
pvanhoof schtrumpf:~/Desktop/pthreads-w32-2-8-0-release$ 



iconv gives me this after adapting errno.h:

pvanhoof schtrumpf:~/Desktop/libiconv-1.9.2$ make
cd lib && make all
make[1]: Entering directory `/home/pvanhoof/Desktop/libiconv-1.9.2/lib'
/bin/sh ../libtool --mode=compile /opt/mingw32ce/bin/arm-wince-mingw32ce-gcc -I. -I. -I../include -I./../include  -g -O2 -DLIBDIR=\"/opt/glib-wince/lib\" -DENABLE_RELOCATABLE=1 -DIN_LIBRARY -DINSTALLDIR=\"/opt/glib-wince/lib\" -DNO_XMALLOC -Dset_relocation_prefix=libiconv_set_relocation_prefix -Drelocate=libiconv_relocate -DHAVE_CONFIG_H -c ./iconv.c
 /opt/mingw32ce/bin/arm-wince-mingw32ce-gcc -I. -I. -I../include -I./../include -g -O2 -DLIBDIR=\"/opt/glib-wince/lib\" -DENABLE_RELOCATABLE=1 -DIN_LIBRARY -DINSTALLDIR=\"/opt/glib-wince/lib\" -DNO_XMALLOC -Dset_relocation_prefix=libiconv_set_relocation_prefix -Drelocate=libiconv_relocate -DHAVE_CONFIG_H -c ./iconv.c  -DDLL_EXPORT -DPIC -o .libs/iconv.o
In file included from /opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/wchar.h:45,
                 from ./loop_wchar.h:28,
                 from ./loops.h:24,
                 from ./iconv.c:130:
/opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/wctype.h: In function 'isleadbyte':
/opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/wctype.h:144: error: '_pctype' undeclared (first use in this function)
/opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/wctype.h:144: error: (Each undeclared identifier is reported only once
/opt/mingw32ce/lib/gcc/arm-wince-mingw32ce/4.1.0/../../../../arm-wince-mingw32ce/include/wctype.h:144: error: for each function it appears in.)
In file included from ./loops.h:24,
                 from ./iconv.c:130:
./loop_wchar.h: In function 'wchar_from_loop_convert':
./loop_wchar.h:107: error: 'MB_CUR_MAX' undeclared (first use in this function)
make[1]: *** [iconv.lo] Error 1
make[1]: Leaving directory `/home/pvanhoof/Desktop/libiconv-1.9.2/lib'
make: *** [all] Error 2
pvanhoof schtrumpf:~/Desktop/libiconv-1.9.2$ 


I guess these things are fixable or doable to fix.



> o. Port glib

As glib depends on both pthread-win32 and iconv, I haven't even tried
this yet.

> o. Get a basic Tinymail (without support for Gtk+ compiled)
> o. Test some basic types like the TnyList
> o. Port Gtk+ using tor's gtk-win32 port
> o. Port the libtinymailui-gtk+ library
> o. Implement a HTML TnyMsgView that uses the native browser of WinCE
> o. Implement .NET bindings
> o. Make the .NET bindings work with Compact Framework .NET
> o. Implement a demo CF.NET E-mail client
> 
> I think all this combined is a one year one men project. Although some
> parts will probably be done by other people while you would be
> developing on earlier points in this list.
> 
> If somebody is interested in this, or needs my assistance, I'd be happy
> to help out.
> 
> For P.i.p.s. I have no idea at this moment. I also think you will need

I haven't tried with P.i.p.s., please feel free to report your successes
and failures here.

> to port iconv, but not pthread (as P.i.p.s. provides this). I think some
> people might have ported an older version glib too. So double check what
> other people have already finished. Maybe also contact Nokia about your
> plans. Who knows they are interested in such a port (Tinymail on the S60
> series, that would be nice).
> 
> If somebody is interested in this, or needs my assistance, I'd be happy
> to help out.


-- 
Philip Van Hoof, software developer
home: me at pvanhoof dot be 
gnome: pvanhoof at gnome dot org 
http://www.pvanhoof.be/blog
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