From 2eba43d0c1c78cf2d13b896bb9a608c482a585df Mon Sep 17 00:00:00 2001 From: guenther <> Date: Sat, 16 Dec 2017 20:06:56 +0000 Subject: Move __cxa_thread_atexit* to its own .c file to avoid pulling the code (w/ _dlctl reference) into static executables. It's all Mark's code so put his preferred copyright on it. ok kettenis@ --- src/lib/libc/stdlib/thread_atexit.c | 49 +++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/lib/libc/stdlib/thread_atexit.c (limited to 'src/lib/libc/stdlib/thread_atexit.c') diff --git a/src/lib/libc/stdlib/thread_atexit.c b/src/lib/libc/stdlib/thread_atexit.c new file mode 100644 index 0000000000..2e00428eba --- /dev/null +++ b/src/lib/libc/stdlib/thread_atexit.c @@ -0,0 +1,49 @@ +/* $OpenBSD: thread_atexit.c,v 1.1 2017/12/16 20:06:56 guenther Exp $ */ +/* + * Copyright (c) 2017 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include +#pragma weak _DYNAMIC +#include +#include + +#include "atexit.h" + +typeof(dlctl) dlctl asm("_dlctl") __attribute__((weak)); + +__weak_alias(__cxa_thread_atexit, __cxa_thread_atexit_impl); + +int +__cxa_thread_atexit_impl(void (*func)(void *), void *arg, void *dso) +{ + struct thread_atexit_fn *fnp; + struct tib *tib = TIB_GET(); + + fnp = calloc(1, sizeof(struct thread_atexit_fn)); + if (fnp == NULL) + return -1; + + if (_DYNAMIC) + dlctl(NULL, DL_REFERENCE, dso); + + fnp->func = func; + fnp->arg = arg; + fnp->next = tib->tib_atexit; + tib->tib_atexit = fnp; + + return 0; +} -- cgit v1.2.3-55-g6feb