[squeak-dev] Interesting build problem on Raspberry PI 32 bit

Tobias Pape Das.Linux at gmx.de
Fri Mar 31 11:08:28 UTC 2023


Hey Bruce


> On 31. Mar 2023, at 12:03, Bruce O'Neel <bruce.oneel at pckswarms.ch> wrote:
> 
> Hi,
> 
> That's a good idea, but let's wait just a touch.  I suspect that we're not the only ones running into this.
> 
> The only place where we would need this is around line 18582 of 
> 
> opensmalltalk-vm/platforms/unix/config/configure
> 
> aarch64)
> # Check whether --enable-fast-bitblt was given.
> if test "${enable_fast_bitblt+set}" = set; then :
>   enableval=$enable_fast_bitblt;  if   test "x$enableval" = "xyes" ; then
>       bitblt_objs="BitBltPlugin.o BitBltArm64.o BitBltDispatch.o BitBltGeneric.o"
>       bitblt_flags="-DENABLE_FAST_BLT"
>    fi
> 
> fi
> 
> This seems to be the only place where we use the architecture and we have not overridden it.
> 
> Also I think we should have a bigger discussion about do we continue with 32 bit OSes and/or 32 bit builds?  But I'll make that a separate email exchange.
> 

since its a raspbian, can you get me the output of

$ dpkg-architecture

? I think we could well work with that…

Best regards
	-Tobias

> cheers
> 
> bruce
> 
> 
> On 2023-03-30T23:22:16.000+02:00, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> Hi Bruce,
> 
>     maybe we should introduce a helper C file, wordsize.c or some such.  It could be as simple as
> 
> #include <stdio.h>
> int main() { printf("%d\n", sizeof(void *)); return 0; }
> 
> we would then compile that first and use its output to determine what to do next.  More reliable than uname?  What do you think?
> 
> 
> On Thu, Mar 30, 2023 at 11:23 AM Bruce O'Neel <bruce.oneel at pckswarms.ch> wrote:
> Hi all,
> 
> First, this is not our problem :-). But it affects us.
> 
> I have kept a 32 bit Pi OS around even though the rest of my ARM systems are 64 bit.
> 
> Until today Squeak built fine.  The last build I did was 901401c from the 28th but tonight it started failing on Pi OS 32 bit with:
> 
> tmp/opensmalltalk-vm/platforms/Cross/plugins/BitBltPlugin/BitBltArm64.c:261:9: error: invalid 'asm': invalid operand for code 'w'
> 
> which is bizarre.  Why would it start building the BitBltArm64.c plugin?  It's ARM32 (armv7l to be exact). 
> 
> And the is no way that the two commits since the last successful build could have changed this.  And what do you know, that commit fails as well now.
> 
> But there is the problem.  uname -m returned armv7l.  Yesterday 
> 
> But today it does not return armv7l.  Today uname -m and arch both return aarch64.
> 
> Which is technically at some level correct.  This system IS a PI/400 so therefore it is an ARM64, but with a 32 bit OS installed.
> 
> I think the change is this package:
> 
> libc-bin:armhf 2.31-13+rpt2+rpi1+deb11u5
> 
> We'll see if Debian or Raspberry PI fixes this in the next few days.
> 
> cheers
> 
> bruce





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