By default, gcc compiled by toolchain says that thread model is single. Is it correct? In particular, what’s with TLS (thread local storage), do we need TLS being enabled via —enable-tls option?

I run some programs with TLS support in multi thread environments (golang runtime)... now it have a race when variable which should be in TLS (in accordance with comments, like in getg() current g) sometimes return null. I am not sure - may be this is related to TLS support, may be in locking...

If I try just to add option --enable-threads=posix toolchain compilation stop giving Error

In file included from /home/alexs/genode_test/genode/contrib/gcc-20345a83596fa42a25a85938329aea54bb4b2146/src/noux-pkg/gcc/libgcc/gthr.h:148,

from /home/alexs/genode_test/genode/contrib/gcc-20345a83596fa42a25a85938329aea54bb4b2146/src/noux-pkg/gcc/libgcc/libgcov-interface.c:27:

./gthr-default.h:35:10: fatal error: pthread.h: No such file or directory

#include <pthread.h>

^~~~~~~~~~~

compilation terminated.

Makefile:921: recipe for target '_gcov_dump.o' failed

Any suggestions? Should TLS work in genode over Nova “as it is”?