1 files changed, 0 insertions, 85 deletions
diff --git a/src/thread/cancel_impl.c b/src/thread/cancel_impl.c
deleted file mode 100644
index 069b2796..00000000
--- a/src/thread/cancel_impl.c
+++ /dev/null
@@ -1,85 +0,0 @@
-#include "pthread_impl.h"
-#include "syscall.h"
-
-void __cancel()
-{
-	pthread_t self = __pthread_self();
-	self->canceldisable = 1;
-	self->cancelasync = 0;
-	pthread_exit(PTHREAD_CANCELED);
-}
-
-long __syscall_cp_asm(volatile void *, syscall_arg_t,
-                      syscall_arg_t, syscall_arg_t, syscall_arg_t,
-                      syscall_arg_t, syscall_arg_t, syscall_arg_t);
-
-long (__syscall_cp)(syscall_arg_t nr,
-                    syscall_arg_t u, syscall_arg_t v, syscall_arg_t w,
-                    syscall_arg_t x, syscall_arg_t y, syscall_arg_t z)
-{
-	pthread_t self;
-	long r;
-
-	if (!libc.has_thread_pointer || (self = __pthread_self())->canceldisable)
-		return __syscall(nr, u, v, w, x, y, z);
-
-	r = __syscall_cp_asm(&self->cancel, nr, u, v, w, x, y, z);
-	if (r==-EINTR && nr!=SYS_close && self->cancel && !self->canceldisable)
-		__cancel();
-	return r;
-}
-
-static void _sigaddset(sigset_t *set, int sig)
-{
-	unsigned s = sig-1;
-	set->__bits[s/8/sizeof *set->__bits] |= 1UL<<(s&8*sizeof *set->__bits-1);
-}
-
-static void cancel_handler(int sig, siginfo_t *si, void *ctx)
-{
-	pthread_t self = __pthread_self();
-	ucontext_t *uc = ctx;
-	const char *ip = ((char **)&uc->uc_mcontext)[CANCEL_REG_IP];
-	extern const char __cp_begin[1], __cp_end[1];
-
-	if (!self->cancel || self->canceldisable) return;
-
-	_sigaddset(&uc->uc_sigmask, SIGCANCEL);
-
-	if (self->cancelasync || ip >= __cp_begin && ip < __cp_end) {
-		self->canceldisable = 1;
-		pthread_sigmask(SIG_SETMASK, &uc->uc_sigmask, 0);
-		__cancel();
-	}
-
-	__syscall(SYS_tkill, self->tid, SIGCANCEL);
-}
-
-void __testcancel()
-{
-	if (!libc.has_thread_pointer) return;
-	pthread_t self = __pthread_self();
-	if (self->cancel && !self->canceldisable)
-		__cancel();
-}
-
-static void init_cancellation()
-{
-	struct sigaction sa = {
-		.sa_flags = SA_SIGINFO | SA_RESTART,
-		.sa_sigaction = cancel_handler
-	};
-	sigfillset(&sa.sa_mask);
-	__libc_sigaction(SIGCANCEL, &sa, 0);
-}
-
-int pthread_cancel(pthread_t t)
-{
-	static int init;
-	if (!init) {
-		init_cancellation();
-		init = 1;
-	}
-	a_store(&t->cancel, 1);
-	return pthread_kill(t, SIGCANCEL);
-}