[Bug sanitizer/71042] libtsan requires __pointer_chk_guard@GLIBC_PRIVATE (6)

[adhemerval.zanella at linaro dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71042

--- Comment #10 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> 
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I just pushed r278292 on compiler-rt and I think it should fix the issue.