Re: [Gm2] Tarball of 14/10/14 (or 9/10) with Raspian Wheezy on ARM (RPi) - further improvement

[JD]

On 14/10/14 17:00, address@hidden wrote:

2. ARM - Raspberry Pi

    === gm2 Summary ===
    
    # of expected passes 6744
    # of unexpected failures 1513
    # of unresolved testcases 1495
    make: [check-gm2] Error 1 (ignored)
But this one wasn't straightforward. I took up your hint to look at
the ARM ABI. There are several cases on the web of the parameter
passing error when calling the VFP unit. Unfortunately, there was no
consistent solution. So, I tried a few changes to the configure
options, and after trial and error this worked:

    1. Force the architecture with the following extra options to
    configure:
    --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf -
    -target=arm-linux-gnueabihf 
    This didn't itself solve the problem but it did force the use of
    arm-linux-gnueabihf-gcc instead of plain gcc.
    2. The option that made the difference was:
    --with-float=hard

I tried compiling a few of my own modules and this showed that I didn't yet have libpth-dev installed.  So I installed it and tried to run:
    make check-gm2
but that failed eventually.  So I rebuilt gm2 - but I'm not sure with which tarball - and the results are enormously improved:

        === gm2 Summary ===

# of expected passes        9584
# of unexpected failures    144
# of unresolved testcases    12
make: [check-gm2] Error 1 (ignored)

BTW, four standard types on the ARM differ in size from on x86:
    On x86  REAL96       0;   REAL128      16
                 COMPLEX96    0;   COMPLEX128   32


    On ARM   REAL96       12;    REAL128      0
                      COMPLEX96    24;    COMPLEX128   0

 Regards,
John