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2017-08-27 Paul Pluzhnikov <ppluzhnikov@google.com> 

* stdlib/Makefile (tst-atexit, tst-at_quick_exit): New tests.
	(tst-cxa_atexit, tst-on_exit): Likewise.
	* stdlib/Makefile (tests): Add tst-atexit, tst-at_quick_exit,
	tst-cxa_atexit, and tst-on_exit.
	* stdlib/tst-atexit-common.c: New file.
	* stdlib/tst-atexit.c: New file.
	* stdlib/tst-at_quick_exit.c: New file.
	* stdlib/tst-cxa_atexit.c: New file.
	* stdlib/tst-on_exit.c: New file.
This commit is contained in:
Paul Pluzhnikov 2017-08-27 19:10:40 -07:00
parent 99ee4d26dc
commit 5f3b183d19
7 changed files with 200 additions and 1 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2017-08-27 Paul Pluzhnikov <ppluzhnikov@google.com>
* stdlib/Makefile (tst-atexit, tst-at_quick_exit): New tests.
(tst-cxa_atexit, tst-on_exit): Likewise.
* stdlib/Makefile (tests): Add tst-atexit, tst-at_quick_exit,
tst-cxa_atexit, and tst-on_exit.
* stdlib/tst-atexit-common.c: New file.
* stdlib/tst-atexit.c: New file.
* stdlib/tst-at_quick_exit.c: New file.
* stdlib/tst-cxa_atexit.c: New file.
* stdlib/tst-on_exit.c: New file.
2017-08-27 Samuel Thibault <samuel.thibault@ens-lyon.org>
* sysdeps/mach/hurd/bits/sysmacros.h: New file.

4
stdlib/Makefile
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@ -80,7 +80,9 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \
tst-strtol-locale tst-strtod-nan-locale tst-strfmon_l \
tst-quick_exit tst-thread-quick_exit tst-width \
tst-width-stdint tst-strfrom tst-strfrom-locale \
tst-getrandom
tst-getrandom tst-atexit tst-at_quick_exit \
tst-cxa_atexit tst-on_exit
tests-internal := tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \
tst-tls-atexit tst-tls-atexit-nodelete
tests-static := tst-secure-getenv

22
stdlib/tst-at_quick_exit.c Normal file
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@ -0,0 +1,22 @@
/* Verify functions registered via at_auick_exit run in LIFO order.
Copyright (C) 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/>. */
#define ATEXIT(fn) at_quick_exit (fn)
#define EXIT(x) quick_exit (x)
#include <stdlib/tst-atexit-common.c>

95
stdlib/tst-atexit-common.c Normal file
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@ -0,0 +1,95 @@
/* Helper file for tst-{atexit,at_quick_exit,cxa_atexit,on_exit}.
Copyright (C) 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 <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define MAX_ATEXIT 20 /* Large enough for current set of invocations. */
static char crumbs[MAX_ATEXIT];
static int next_slot = 0;
static void
fn0 (void)
{
crumbs[next_slot++] = '0';
}
static void
fn1 (void)
{
crumbs[next_slot++] = '1';
}
static void
fn2 (void)
{
crumbs[next_slot++] = '2';
ATEXIT (fn1);
}
static void
fn3 (void)
{
crumbs[next_slot++] = '3';
ATEXIT (fn2);
ATEXIT (fn0);
}
static void
fn_final (void)
{
/* Arbitrary sequence matching current registrations. */
const char expected[] = "3021121130211";
if (strcmp (crumbs, expected) == 0)
_exit (0);
printf ("crumbs: %s\n", crumbs);
printf ("expected: %s\n", expected);
_exit (1);
}
/* This is currently just a basic test to verify that exit handlers execute
in LIFO order, even when the handlers register additional new handlers.
TODO: Additional tests that we should do:
1. POSIX says we need to support at least ATEXIT_MAX
2. Verify that fork'd child inherit the registrations of the parent.
3. ... */
static int
do_test (void)
{
/* Register this first so it can verify expected order of the rest. */
ATEXIT (fn_final);
ATEXIT (fn1);
ATEXIT (fn3);
ATEXIT (fn1);
ATEXIT (fn2);
ATEXIT (fn1);
ATEXIT (fn3);
EXIT (2); /* If we see this exit code, fn_final must have not worked. */
}
#define TEST_FUNCTION do_test
#include <support/test-driver.c>

22
stdlib/tst-atexit.c Normal file
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@ -0,0 +1,22 @@
/* Verify functions registered via atexit run in LIFO order.
Copyright (C) 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/>. */
#define ATEXIT(fn) atexit (fn)
#define EXIT(x) exit (x)
#include <stdlib/tst-atexit-common.c>

24
stdlib/tst-cxa_atexit.c Normal file
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@ -0,0 +1,24 @@
/* Verify functions registered via __cxa_atexit run in LIFO order.
Copyright (C) 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/>. */
extern int __cxa_atexit (void (*func) (void *), void *arg, void *d);
#define ATEXIT(fn) __cxa_atexit ((void (*) (void *)) fn, (void *) 0, (void *) 0)
#define EXIT(x) exit (x)
#include <stdlib/tst-atexit-common.c>

22
stdlib/tst-on_exit.c Normal file
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@ -0,0 +1,22 @@
/* Verify functions registered via on_exit run in LIFO order.
Copyright (C) 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/>. */
#define ATEXIT(fn) on_exit ((void (*) (int, void *)) fn, (void *) 0)
#define EXIT(x) exit (x)
#include <stdlib/tst-atexit-common.c>