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Date: Sat, 02 Aug 2014 18:28:03 +0200
From: Jens Gustedt <>
Subject: reserved symbol violations

 by digging into the symbols that are dragged into a C11 thread
executable I noticed that there are some hotspots that should perhaps
be worth looking at. I attach a file that summarizes the findings.

One is simple, I'd change the reference to clock_gettime in
__timedwait to __clock_gettime.

There are bunch of others, that look simple to resolve, tell me if I
should look into that.

One looks weird, though, lock_ptc.o It is only linked (via __synccall)
if setrlimit or setxid are. But then it drags a whole bunch of pthread
symbols in, which looks wrong to me. Also I think that this doesn't
really capture the need, because the code is only active if both
setrlimit *and* pthread_create are *used*.

So in the absence of either of it, __syncall shouldn't be linked. But
I wouldn't know how to achieve this with weak symbols, I have to


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