[Mono-dev] Building from Source Fails with mcs: Command not found (Mono-devel-list Digest, Vol 121, Issue 19)

cyd chaselton at gmail.com
Thu May 21 21:38:55 UTC 2015

Stupid mistake.. Ran 'make test' not 'make check'.  Running the latter
results in this:

make[3]: Entering directory `/bld/mono/mono-4.0.0/mono/mini'
../../runtime/mono-wrapper /bld/mono/mono-4.0.0/mcs/class/lib/build/mcs.exe
-unsafe -nowarn:0162 -out:TestDriver.dll -target:library TestDriver.cs
make[3]: *** [TestDriver.dll] Illegal instruction

..which is the illegal instruction mentioned earlier.

Now to figure out the problem

cyd wrote
> This may sound like an obvious question but shouldn't the 'make test' that
> I ran in mono/mono...after running 'make clean && make' in mono/mono pick
> that up?  Should I be running 'make tests' in mono/mini/mono instead?
> Jo Shields wrote
>> On 21/05/15 12:39, cyd wrote:
>>> Done.  Results were:
>>> make[3]: Entering directory `/bld/mono/mono-4.0.0/mono/mini'
>>> MONO_PATH=/bld/mono/mono-4.0.0/mcs/class/lib/net_4_5
>>> ../../runtime/mono-wrapper
>>> /bld/mono/mono-4.0.0/mcs/class/lib/build/mcs.exe
>>> -unsafe -nowarn:0162 -out:TestDriver.dll -target:library TestDriver.cs
>>> Illegal instruction
>> basic.exe is *supposed* to be "PE32 executable for MS Windows (console)
>> Intel 80386 32-bit Mono/.Net assembly" - all .NET apps are.
>> You're missing the most important part here: the "Illegal instruction".
>> SIGILL comes from the kernel when your Mono runtime (mono/mini/mono) is
>> trying to execute instructions which your CPU doesn't support - e.g.
>> ARMv7 instructions on an ARMv6 chip.
>> This error here means your compiled Mono runtime in mono/mini is trying
>> to execute basic.exe, issuing a CPU instruction which your CPU doesn't
>> have, and crashing.
>> _______________________________________________
>> Mono-devel-list mailing list

>> Mono-devel-list at .ximian

>> http://lists.ximian.com/mailman/listinfo/mono-devel-list

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