libmudflap and emutls question

[Jie Zhang]

Hi,

I encountered a recursive call problem between libmudflap and emutls 
when testing libmudflap for Blackfin. But I think this issue affects all 
targets without TLS.

One libmudflap test case in the testsuite calls __wrap_calloc. In 
__wrap_calloc, __mf_state_1 is looked by __mf_get_state to see if it's 
in_malloc, reentrant or active. With emutls, HAVE_TLS is defined as 1 
now. So __mf_state_1 has type of __thread. When emults tries to simulate 
TLS for __mf_state_1, it recursively calls __wrap_calloc in 
__emutls_get_address. To break the recursive loop, one solution is to 
force emutls to call the real calloc. But I don't know how to do this. 
Could someone help me on this?

Thanks!


Jie