build tests test/dblat1 and ctest/xdcblat1 fail on OpenIndiana SPARC

[klausz65]

while building OpenBLAS-0.3.30 on OpenIndiana SPARC the following error happens in directory: test

OPENBLAS_NUM_THREADS=1 OMP_NUM_THREADS=1 ./dblat1
Real BLAS Test Program Results
...
Test of subprogram number 7 DNRM2

Program received signal SIGBUS: Access to an undefined portion of a memory object.

Backtrace for this error:
/bin/sh: 181992: Abort(coredump)
make[1]: *** [Makefile:52: level1] Abort
make[1]: *** Waiting for unfinished jobs....

The second error happens in directory ctest:

OPENBLAS_NUM_THREADS=2 ./xdcblat1
Real CBLAS Test Program Results
...

Test of subprogram number 7 CBLAS_DNRM2

Program received signal SIGBUS: Access to an undefined portion of a memory object.

Backtrace for this error:
/bin/sh: 186674: Abort(coredump)
make[1]: *** [Makefile:101: all1] Abort
make[1]: *** Waiting for unfinished jobs....

both Makefiles have been patched to not use these two tests, for details see:
OpenIndiana/oi-userland#24841

[martin-frbg]

That appears to be fallout from a rather dubious (in retrospect) bugfix I made 3 years ago. A better temporary fix should be to change the KERNEL files in kernel/sparc to have DNRM2KERNEL=../arm/nrm2.c as patching out the tests will only hide that the library is likely to bomb out on DNRM2 calls in user code as well

[klausz65]

You think of this patch:
--- OpenBLAS-0.3.30/kernel/sparc/KERNEL.orig 2025-06-19 11:45:39.000000000 +0200
+++ OpenBLAS-0.3.30/kernel/sparc/KERNEL 2025-11-28 13:31:12.380434169 +0100
@@ -59,7 +59,7 @@
endif

ifndef DNRM2KERNEL
-DNRM2KERNEL = dnrm2.S
+DNRM2KERNEL = ../arm/nrm2.c
endif

ifndef CNRM2KERNEL

new build just stated - will let you know how the results - thanks quite much for the quick support !

[martin-frbg]

Yes, that's right. I'll try to come up with a proper fix for dnrm2.S , but I'm not actually familiar with SPARC assembly, and modern compilers will probably have reduced the speed advantage of that hand-crafted code anyway.

[klausz65]

Test build done successfully, new pull RQ: OpenIndiana/oi-userland#24846 in the production build queue. Awesome - thanks quite much.

[klausz65]

About SPARC assembler, I do have 2 PDFs for: 801-6649 and 816-1681-10. I don't know if they still can be downloaded somewhere, but just in case you don't have them, let me know I mail them to you...
I did some assembler stuff in the good old SunOS 4.x times - but these times are long gone...