On Oct 12, 7:55 am, Helmut Jarausch <jarau...@igpm.rwth-aachen.de> wrote: > I wrote > I'm trying to build the recent Python-3.2a (SVN). > It fails in > Lib/tokenize.py (line 87) [...] > with: TypeError: group() argument after ** must be a mapping, not tuple
I believe I've found the source of this problem: the --with-tsc configure option enables some buggy inline assembly: see the READ_TIMESTAMP macro in Python/ceval.c. This uses the constraint "A" for the output of the x86 'rdtsc' instruction; for x86 that's fine, but for x86_64 it apparently refers to the 'rax' register, which is wrong: rdtsc loads its result into the edx and eax registers. So the edx register ends up being clobbered without gcc knowing about it, and all hell breaks loose as a result. So it is a Python bug, not a compiler bug. I've updated the bug report, and the bug should be fixed soonish. Thanks for reporting this, and for whittling the failure down to the --with-tsc configure option! Mark -- http://mail.python.org/mailman/listinfo/python-list
