pthread_key_create on QNX triggers recursive allocation during tsd
bootstrapping. Using tsd_init_check_recursion to detect that.
Before pthread_key_create, the address of tsd_boot_wrapper is returned
from tsd_get_wrapper instead of using TLS to store the pointer.
tsd_set_wrapper becomes a no-op. After that, the address of
tsd_boot_wrapper is written to TLS and bootstrap continues as before.
Signed-off-by: Jin Qian <jqian@aurora.tech>
96a59c3bb5