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* stdlib/Makefile (routines): Add quick_exit, at_quick_exit, and

cxa_at_quick_exit.
	(static-only-routines): Add at_quick_exit.
	* stdlib/Versions: Export quick_exit and __cxa_at_quick_exit for
	GLIBC_2.10.
	* stdlib/quick_exit.c: New file.
	* stdlib/at_quick_exit.c: New file.
	* stdlib/cxa_at_quick_exit.c: New file.
	* stdlib/cxa_atexit.c (__cxa_atexit): Move body to new function.  Call
	it appropriately.
	(__internal_atexit): New function.
	(__new_exitfn): Now takes parameter to point to the list to use.
	* stdlib/cxa_finalize.c: Remove quick_exit handlers, don't call them.
	* stdlib/exit.c (__run_exit_handlers): New function.  Split from...
	(exit): ...here.  Just call __run_exit_handlers appropriately.
	* stdlib/exit.h: Declare __quick_exit_funcs, __run_exit_handlers,
	__internal_atexit, __cxa_at_quick_exit.  Adjust __new_exitfn.
	* stdlib/on_exit.c: Adjust call to __new_exitfn.
	* stdlib/stdlib.h: Declare at_quick_exit and quick_exit.
This commit is contained in:
Ulrich Drepper
2009-03-08 19:53:12 +00:00
parent 130ca12eb3
commit 610e67ed5a
13 changed files with 232 additions and 30 deletions

View File

@ -1,4 +1,5 @@
/* Copyright (C) 1991,95,96,97,99,2001,2002,2005 Free Software Foundation, Inc.
/* Copyright (C) 1991,95,96,97,99,2001,2002,2005,2009
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
@ -30,20 +31,22 @@ DEFINE_HOOK (__libc_atexit, (void))
in the reverse of the order in which they were registered
perform stdio cleanup, and terminate program execution with STATUS. */
void
exit (int status)
attribute_hidden
__run_exit_handlers (int status, struct exit_function_list **listp,
bool run_list_atexit)
{
/* 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 (__exit_funcs != NULL)
while (*listp != NULL)
{
struct exit_function_list *old;
struct exit_function_list *cur = *listp;
while (__exit_funcs->idx > 0)
while (cur->idx > 0)
{
const struct exit_function *const f =
&__exit_funcs->fns[--__exit_funcs->idx];
&cur->fns[--cur->idx];
switch (f->flavor)
{
void (*atfct) (void);
@ -77,16 +80,23 @@ exit (int status)
}
}
old = __exit_funcs;
__exit_funcs = __exit_funcs->next;
if (__exit_funcs != NULL)
*listp = cur->next;
if (*listp != NULL)
/* Don't free the last element in the chain, this is the statically
allocate element. */
free (old);
free (cur);
}
RUN_HOOK (__libc_atexit, ());
if (run_list_atexit)
RUN_HOOK (__libc_atexit, ());
_exit (status);
}
void
exit (int status)
{
__run_exit_handlers (status, __exit_funcs, true);
}
libc_hidden_def (exit)