From f779b1efb35fe141e47952af3ac7f0540acca401 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 7 Dec 2020 16:21:55 -0300 Subject: nptl: Implement raise in terms of pthread_kill Now that pthread_kill is provided by libc.so it is possible to implement the generic POSIX implementation as 'pthread_kill(pthread_self(), sig)'. For Linux implementation, pthread_kill read the targeting TID from the TCB. For raise, this it not possible because it would make raise fail when issue after vfork (where creates the resulting process has a different TID from the parent, but its TCB is not updated as for pthread_create). To make raise use pthread_kill, it is make usable from vfork by getting the target thread id through gettid syscall. Checked on x86_64-linux-gnu and aarch64-linux-gnu. --- sysdeps/htl/pthreadP.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'sysdeps/htl') diff --git a/sysdeps/htl/pthreadP.h b/sysdeps/htl/pthreadP.h index 8e2cf2ce65..3b357b7bdc 100644 --- a/sysdeps/htl/pthreadP.h +++ b/sysdeps/htl/pthreadP.h @@ -31,8 +31,6 @@ extern void __pthread_init_static_tls (struct link_map *) attribute_hidden; /* These represent the interface used by glibc itself. */ -extern pthread_t __pthread_self (void); -extern int __pthread_kill (pthread_t threadid, int signo); extern struct __pthread **__pthread_threads; extern int __pthread_mutex_init (pthread_mutex_t *__mutex, const pthread_mutexattr_t *__attr); -- cgit 1.4.1