From 870cc679771f776333953b2a990a107393d9d0fd Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Wed, 20 Apr 2011 21:41:45 -0400 Subject: fix minor bugs due to incorrect threaded-predicate semantics some functions that should have been testing whether pthread_self() had been called and initialized the thread pointer were instead testing whether pthread_create() had been called and actually made the program "threaded". while it's unlikely any mismatch would occur in real-world problems, this could have introduced subtle bugs. now, we store the address of the main thread's thread descriptor in the libc structure and use its presence as a flag that the thread register is initialized. note that after fork, the calling thread (not necessarily the original main thread) is the new main thread. --- src/internal/libc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/internal') diff --git a/src/internal/libc.h b/src/internal/libc.h index 06ba73e7..638ea527 100644 --- a/src/internal/libc.h +++ b/src/internal/libc.h @@ -16,6 +16,7 @@ struct __libc { volatile int threads_minus_1; int ofl_lock; FILE *ofl_head; + void *main_thread; }; -- cgit v1.2.1