[Hdf-forum] Cross compile HDF5 for iPhone

[Quincey Koziol]

On Jan 12, 2010, at 7:27 AM, Michael Jackson wrote:

> So, how to boot-strap this is to somehow execute the H5detect program _on_ the iphone and save the output to H5init.c, which can then be put back into the source location on the host computer and the compilation can continue. SAVE that file. You will need it each time you run Make. In fact you will probably just need to disable that part of the build system where H5init.c is created.

	Yes, that's necessary.  Also, the H5config.h that is generated by the configure script may need to be tweaked for the ARM architecture/iPhone environment.

> If you get it working, please post (or email me offlist) the generated file.

	Send us a copy too, it might be useful in the future. :-)

	Quincey

> _________________________________________________________
> Mike Jackson                  mike.jackson at bluequartz.net
> BlueQuartz Software                    www.bluequartz.net
> Principal Software Engineer                  Dayton, Ohio
> 
> On Jan 12, 2010, at 8:04 AM, Eric Reid wrote:
> 
>> Hello all,
>> 
>> I'm fairly new with HDF5, and we are experimenting with using it for some of our products with large datasets. I've got it up and running inside our applications on Mac OS X and linux. The next step is to see if we can get it running on an iPhone app. The host system is OS X 10.6.2. So far I've been unsuccessful.
>> 
>> I had to strip some of the tests from the "configure.in" file, as they didn't allow for cross compiling. After doing that, I successfully got ./configure to run with the following command:
>> 
>> ./configure --prefix=/usr/local/iphone --enable-cxx=yes --host=arm-apple-darwin  CC=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.0.1 CFLAGS="-arch armv6 -pipe -std=c99 -O3 -miphoneos-version-min=2.0 -gdwarf-2 -mthumb -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk" CXXFLAGS="-arch armv6 -pipe -O3 -miphoneos-version-min=2.0 -gdwarf-2 -mthumb -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk" CPP=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp AR=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/ar
>> 
>> make starts working fine until I get to the point where it is trying to create H5Tinit.c. It is trying to run H5detect, which I presume was built for the armv6, and I get the following error:
>> 
>> LD_LIBRARY_PATH="$LD_LIBRARY_PATH`echo  |                  \
>>        sed -e 's/-L/:/g' -e 's/ //g'`"                               \
>>     ./H5detect > H5Tinit.c  ||                               \
>>        (test $HDF5_Make_Ignore && echo "*** Error ignored") ||          \
>>        (rm -f H5Tinit.c ; exit 1)
>> /bin/sh: ./H5detect: Bad CPU type in executable
>> make[2]: *** [H5Tinit.c] Error 1
>> make[1]: *** [all] Error 2
>> make: *** [all-recursive] Error 1
>> 
>> The H5Tinit.c looks to be rather complicated, and not something that I'd want to try to recreate by hand. Can anyone point me in the right direction?
>> 
>> Thanks!
>> 
>> Eric
>> _______________________________________________
>> Hdf-forum is for HDF software users discussion.
>> Hdf-forum at hdfgroup.org
>> http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
> 
> 
> _______________________________________________
> Hdf-forum is for HDF software users discussion.
> Hdf-forum at hdfgroup.org
> http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org