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lib/libc/stdlib/thread_atexit.c
44 строки
1 KB
guenther
Complete the ld.so boot cleanup: move most libc initialization from
02 июн 2019, 04:03
02 июн 2019, 04:03
5c7d06e
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/* $OpenBSD: thread_atexit.c,v 1.2 2019/06/02 01:03:01 guenther Exp $ */ /* * Copyright (c) 2017 Mark Kettenis <kettenis@openbsd.org> * * 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 <dlfcn.h> #include <stdlib.h> #include <tib.h> #include "atexit.h" __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; dlctl(NULL, DL_REFERENCE, dso); fnp->func = func; fnp->arg = arg; fnp->next = tib->tib_atexit; tib->tib_atexit = fnp; return 0; }