Hi,
I'm really excited about mono so I tried something a litle
goofy : I built it on a Strongarm platform. I *know* this isn't the
highest priority right now, but just for kicks, here's what I did :
./configure :
I added "armv4l" as a target
arm-*-linux-* | armv4l-*-linux-*) TARGET=ARM; arch_target=arm;
ACCESS_UNALIGNED="no";;
^^^^^^^^^^^^^^^^^^
./arch/arm/tramp.c :
I removed mono_string_new_wrapper(), since it is defined elsewhere,
and I was getting conflicts
./io-layer/atomic.c :
I removed the spinlocks. This is a hack : pthreads doesn't have the
spinlock calls on ARM, multi-cpus not supported. Should the atomic
routines be coded in assembly ? Does it matter ?
RESULTS :
After these hacks, I did configure, make, make install. Lots and lots
of the following :
warning: cast increases required alignment of target type
as well as some :
warning: comparison is always false due to limited range of data type
Q : I *think* the first one is just warning about wasted space, since
4-byte words must be aligned on 4-byte boundaries. Is this true ?
Anyway, monodis and monograph work fine (as far as I can tell). I
then tried :
mint --trace hello.exe
and I got the following :
>
> (1024) Entering System.Threading.Thread::.cctor ()
> (1024) Entering System.Collections.Hashtable::.cctor ()
> (1024) Entering System.Object::.ctor (0x20bd938 )
> (1024) Leaving System.Object::.ctor =>
> (1024) Entering
>System.Runtime.CompilerServices.RuntimeHelpers::InitializeArray ([0x20c16b8] [vt:
>0xbffff7b8] )
> 0x20c3038: e1a0c00d mov ip, sp
> 0x20c303c: e92d50f0 stmdb sp!, {r4-r7, ip, lr}
> 0x20c3040: e1a04000 mov r4, a1
> 0x20c3044: e1a07003 mov r7, a4
> 0x20c3048: e597100c ldr a2, [r7, #12]
> 0x20c304c: e5970000 ldr a1, [r7, #0]
> 0x20c3050: e1a0e00f mov lr, pc
> 0x20c3054: e1a0f004 mov pc, r4
> 0x20c3058: e89da0f0 ldmia sp, {r4-r7, sp, pc}
> Segmentation fault
So it seems that the very first method that actually does something is
crashing. I'm a little (?) too clueless to debug this situation, but
my question is :
Q: Should mint be close to running on the StrongARM (or any ARM) or is
there still lots of work to be done ?
If there is a simple fix to get mint working, I'd love to hear about
it.
Thanks,
Jeff
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