glibc/stdlib/tst-atexit-common.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

145 lines
3.5 KiB
C

/* Helper file for tst-{atexit,at_quick_exit,cxa_atexit,on_exit}.
Copyright (C) 2017-2019 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
<https://www.gnu.org/licenses/>. */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
/* http://pubs.opengroup.org/onlinepubs/000095399/functions/atexit.html
requires that we support at least 32 atexit handlers.
The number we actually support is limited by memory. Here we simply
check that we support at least the minimum required. */
#define MAX_ATEXIT 32
/* Arbitrary sequence matching current registrations. */
const char expected[] = "00000000000000000000000003021121130211";
static char crumbs[sizeof (expected)];
static int next_slot = 0;
/* Helper: flush stdout and _exit. */
static void
_exit_with_flush (int code)
{
fflush (stdout);
_exit (code);
}
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)
{
if (strcmp (crumbs, expected) == 0)
_exit_with_flush (0);
printf ("crumbs: %s\n", crumbs);
printf ("expected: %s\n", expected);
_exit_with_flush (1);
}
static int
do_test (void)
{
int slots_remaining = MAX_ATEXIT;
/* Register this first so it can verify expected order of the rest. */
ATEXIT (fn_final); --slots_remaining;
ATEXIT (fn1); --slots_remaining;
ATEXIT (fn3); --slots_remaining;
ATEXIT (fn1); --slots_remaining;
ATEXIT (fn2); --slots_remaining;
ATEXIT (fn1); --slots_remaining;
ATEXIT (fn3); --slots_remaining;
/* Fill the rest of available slots with fn0. */
while (slots_remaining > 0)
{
ATEXIT (fn0); --slots_remaining;
}
/* Verify that handlers registered above are inherited across fork. */
const pid_t child = fork ();
switch (child)
{
case -1:
printf ("fork: %m\n");
_exit_with_flush (3);
case 0: /* Child. */
break;
default:
{
int status;
const pid_t exited = waitpid (child, &status, 0);
if (child != exited)
{
printf ("unexpected child: %d, expected %d\n", exited, child);
_exit_with_flush (4);
}
if (status != 0)
{
if (WIFEXITED (status))
printf ("unexpected exit status %d from child %d\n",
WEXITSTATUS (status), child);
else if (WIFSIGNALED (status))
printf ("unexpected signal %d from child %d\n",
WTERMSIG (status), child);
else
printf ("unexpected status %d from child %d\n", status, child);
_exit_with_flush (5);
}
}
break;
}
EXIT (2); /* If we see this exit code, fn_final must have not worked. */
}
#define TEST_FUNCTION do_test
#include <support/test-driver.c>