Since the testsuite parallelism has been massively increased some time
ago, I'm seing lots of timeouts on slower SPARC hardware (1.2 Ghz
UltraSPARC-T2). Closer investigation revealed that this happens on
Solaris everywhere, though not so badly that the testsuite 300 second
timeout hits. The check_guality test in gcc.dg/guality and
g++.dg/guality times out every time.
It turns out that while the gfortran.dg/guality test do run, the gcc.dg
and g++.dg ones don't. Running check_guality under truss shows that gdb
complains
No symbol table is loaded. Use the "file" command.
and loops from there, unlike gfortran.dg where the command name is
passed to gdb. No idea why this doesn't happen on Linux, but the
problem is easily cured by adding the command name (which is the actual
executable gdb tries to attach to) to the gdb command line.
This makes the guality tests run sucessfully on Solaris, even on the
slow T2 box.
However, the guality tests show dozens or even hundreds of FAILs and/or
XPASSes, adding insane amounts of noise to the testsuite results, which
nobody seems to be looking into. So I wonder what the best course of
action is here: one might consider running them only when a
GCC_TEST_RUN_GUALITY environment variable is set, but skip them by
default until someone acutally interested in improving results here
shows up.
Thoughts?
Anyway, here's the patch I've used.
Ok for mainline?
Rainer
2015-01-28 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
gcc/testsuite:
* gcc.dg/guality/guality.h (main): Add argv[0] to
guality_gdb_command.