src-test2/lib/libc/stdlib/exit.c, branch release/4.1.1 FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F4.1.1 1998-04-29T09:08:43Z Reference an external variable in threaded programs so that the 1998-04-29T09:08:43Z John Birrell jb@FreeBSD.org 1998-04-29T09:08:43Z urn:sha1:96c76d66dbe7eb660f3d27ca616d2f9d91dbaae6 autoinitialiser gets linked in and therefore called before main(). Add a global variable called __isthreaded that can be tested throughout 1998-04-11T07:02:58Z John Birrell jb@FreeBSD.org 1998-04-11T07:02:58Z urn:sha1:f901bc279504ec16aef08a9765345d75fc68d1a1 libc to determine if locking is required. This is needed in libc for use with kernel threads, but until a thread is created, we don't really want to bother locking things. The variable was added here because the crt code calls exit(main()) so all programs will get the variable. BSD 4.4 Lite Lib Sources 1994-05-27T05:00:24Z Rodney W. Grimes rgrimes@FreeBSD.org 1994-05-27T05:00:24Z urn:sha1:58f0484fa251c266ede97b591b499fe3dd4f578e