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-rw-r--r--REORG.TODO/stdlib/exit.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/REORG.TODO/stdlib/exit.c b/REORG.TODO/stdlib/exit.c
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+++ b/REORG.TODO/stdlib/exit.c
@@ -0,0 +1,107 @@
+/* Copyright (C) 1991-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sysdep.h>
+#include "exit.h"
+
+#include "set-hooks.h"
+DEFINE_HOOK (__libc_atexit, (void))
+
+
+/* Call all functions registered with `atexit' and `on_exit',
+ in the reverse of the order in which they were registered
+ perform stdio cleanup, and terminate program execution with STATUS. */
+void
+attribute_hidden
+__run_exit_handlers (int status, struct exit_function_list **listp,
+ bool run_list_atexit, bool run_dtors)
+{
+ /* First, call the TLS destructors. */
+#ifndef SHARED
+ if (&__call_tls_dtors != NULL)
+#endif
+ if (run_dtors)
+ __call_tls_dtors ();
+
+ /* We do it this way to handle recursive calls to exit () made by
+ the functions registered with `atexit' and `on_exit'. We call
+ everyone on the list and use the status value in the last
+ exit (). */
+ while (*listp != NULL)
+ {
+ struct exit_function_list *cur = *listp;
+
+ while (cur->idx > 0)
+ {
+ const struct exit_function *const f =
+ &cur->fns[--cur->idx];
+ switch (f->flavor)
+ {
+ void (*atfct) (void);
+ void (*onfct) (int status, void *arg);
+ void (*cxafct) (void *arg, int status);
+
+ case ef_free:
+ case ef_us:
+ break;
+ case ef_on:
+ onfct = f->func.on.fn;
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (onfct);
+#endif
+ onfct (status, f->func.on.arg);
+ break;
+ case ef_at:
+ atfct = f->func.at;
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (atfct);
+#endif
+ atfct ();
+ break;
+ case ef_cxa:
+ cxafct = f->func.cxa.fn;
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (cxafct);
+#endif
+ cxafct (f->func.cxa.arg, status);
+ break;
+ }
+ }
+
+ *listp = cur->next;
+ if (*listp != NULL)
+ /* Don't free the last element in the chain, this is the statically
+ allocate element. */
+ free (cur);
+ }
+
+ if (run_list_atexit)
+ RUN_HOOK (__libc_atexit, ());
+
+ _exit (status);
+}
+
+
+void
+exit (int status)
+{
+ __run_exit_handlers (status, &__exit_funcs, true, true);
+}
+libc_hidden_def (exit)