Date: Thu, 02 May 2024 17:07:07 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 278701] Certain usage of thread_local and -fPIE results in an obscure message printout Message-ID: <bug-278701-227@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278701 Bug ID: 278701 Summary: Certain usage of thread_local and -fPIE results in an obscure message printout Product: Base System Version: 14.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Many People Priority: --- Component: misc Assignee: bugs@FreeBSD.org Reporter: vd@FreeBSD.org freefall:~$ cat > main.cc #include <string> thread_local std::string s; int main(int argc, char** argv) { s =3D "aaa"; return 0; } freefall:~$ c++ -fPIE main.cc -o main freefall:~$ ./main __cxa_thread_call_dtors: dtr 0x820b65830 from unloaded dso, skipping freefall:~$ Same result with FreeBSD-14.0/clang-16.0.6 and FreeBSD-15.0/clang-18.1.4 The printed message is obscure because it is not clear if there is a bug in= the program or in the library or if I am supposed to do something to resolve the problem. Also, I think, the destructor of `s` is not called. The message is printed from walk_cb_call() from lib/libc/stdlib/cxa_thread_atexit_impl.c. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-278701-227>