[Bug sanitizer/77982] deadlock in asan thread initialization/interception.

[pawel_sikora at zoho dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77982

--- Comment #4 from Pawel Sikora <pawel_sikora at zoho dot com> ---
(In reply to Pawel Sikora from comment #3)
> (In reply to Kostya Serebryany from comment #2)
> > Is -flto important here?
> > Does this happen with clang? (does not happen for me)
> > Does this happen if you use statically linked asan (-static-libasan)?
> 

> ad2). with static libasan testcase works.

correction (there was a bug in my testing). so, static asan doesn't start.

g++ -fuse-ld=gold -g2 -Og -fsanitize=address -static-libasan s.cpp -shared -o
s.so -fPIC -pthread
g++ -fuse-ld=gold -g2 -Og -fsanitize=address -static-libasan m.cpp -o m -ldl
[pawels@pawels]~/src/bug% ./m
./s.so: undefined symbol: __asan_option_detect_stack_use_after_return