/* Skeleton for test programs.
- Copyright (C) 1998, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1998-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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 <errno.h>
+#include <fcntl.h>
#include <getopt.h>
+#include <malloc.h>
+#include <paths.h>
#include <search.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/resource.h>
#include <sys/wait.h>
+#include <sys/param.h>
+#include <time.h>
/* The test function is normally called `do_test' and it is called
with argc and argv as the arguments. We nevertheless provide the
# define TEST_FUNCTION do_test (argc, argv)
#endif
+#ifndef TEST_DATA_LIMIT
+# define TEST_DATA_LIMIT (64 << 20) /* Data limit (bytes) to run with. */
+#endif
#define OPT_DIRECT 1000
#define OPT_TESTDIR 1001
};
/* PID of the test itself. */
-static int pid;
+static pid_t pid;
/* Directory to place temporary files in. */
static const char *test_dir;
/* List of temporary files. */
-struct name_list
+struct temp_name_list
{
struct qelem q;
const char *name;
-} *name_list;
+} *temp_name_list;
/* Add temporary files in list. */
-void
+static void
+__attribute__ ((unused))
add_temp_file (const char *name)
{
- struct name_list *newp = (struct name_list *) calloc (sizeof (*newp), 1);
+ struct temp_name_list *newp
+ = (struct temp_name_list *) calloc (sizeof (*newp), 1);
if (newp != NULL)
{
newp->name = name;
- if (name_list == NULL)
- name_list = (struct name_list *) &newp->q;
+ if (temp_name_list == NULL)
+ temp_name_list = (struct temp_name_list *) &newp->q;
else
- insque (newp, name_list);
+ insque (newp, temp_name_list);
}
}
/* Delete all temporary files. */
-void
+static void
delete_temp_files (void)
{
- while (name_list != NULL)
+ while (temp_name_list != NULL)
+ {
+ remove (temp_name_list->name);
+ temp_name_list = (struct temp_name_list *) temp_name_list->q.q_forw;
+ }
+}
+
+/* Create a temporary file. */
+static int
+__attribute__ ((unused))
+create_temp_file (const char *base, char **filename)
+{
+ char *fname;
+ int fd;
+
+ fname = (char *) malloc (strlen (test_dir) + 1 + strlen (base)
+ + sizeof ("XXXXXX"));
+ if (fname == NULL)
+ {
+ puts ("out of memory");
+ return -1;
+ }
+ strcpy (stpcpy (stpcpy (stpcpy (fname, test_dir), "/"), base), "XXXXXX");
+
+ fd = mkstemp (fname);
+ if (fd == -1)
{
- remove (name_list->name);
- name_list = (struct name_list *) name_list->q.q_forw;
+ printf ("cannot open temporary file '%s': %m\n", fname);
+ free (fname);
+ return -1;
}
+
+ add_temp_file (fname);
+ if (filename != NULL)
+ *filename = fname;
+
+ return fd;
}
/* Timeout handler. We kill the child and exit with an error. */
-void
-timeout_handler (int sig __attribute__ ((unused)))
+static void
+__attribute__ ((noreturn))
+signal_handler (int sig __attribute__ ((unused)))
{
int killed;
+ int status;
- /* Send signal. */
+ assert (pid > 1);
+ /* Kill the whole process group. */
+ kill (-pid, SIGKILL);
+ /* In case setpgid failed in the child, kill it individually too. */
kill (pid, SIGKILL);
/* Wait for it to terminate. */
- killed = waitpid (pid, NULL, WNOHANG);
+ int i;
+ for (i = 0; i < 5; ++i)
+ {
+ killed = waitpid (pid, &status, WNOHANG|WUNTRACED);
+ if (killed != 0)
+ break;
+
+ /* Delay, give the system time to process the kill. If the
+ nanosleep() call return prematurely, all the better. We
+ won't restart it since this probably means the child process
+ finally died. */
+ struct timespec ts;
+ ts.tv_sec = 0;
+ ts.tv_nsec = 100000000;
+ nanosleep (&ts, NULL);
+ }
if (killed != 0 && killed != pid)
{
- perror ("Failed to killed test process");
+ printf ("Failed to kill test process: %m\n");
exit (1);
}
CLEANUP_HANDLER;
#endif
- fputs ("Timed out: killed the child process\n", stderr);
+ if (sig == SIGINT)
+ {
+ signal (sig, SIG_DFL);
+ raise (sig);
+ }
+
+ /* If we expected this signal: good! */
+#ifdef EXPECTED_SIGNAL
+ if (EXPECTED_SIGNAL == SIGALRM)
+ exit (0);
+#endif
+
+ if (killed == 0 || (WIFSIGNALED (status) && WTERMSIG (status) == SIGKILL))
+ puts ("Timed out: killed the child process");
+ else if (WIFSTOPPED (status))
+ printf ("Timed out: the child process was %s\n",
+ strsignal (WSTOPSIG (status)));
+ else if (WIFSIGNALED (status))
+ printf ("Timed out: the child process got signal %s\n",
+ strsignal (WTERMSIG (status)));
+ else
+ printf ("Timed out: killed the child process but it exited %d\n",
+ WEXITSTATUS (status));
/* Exit with an error. */
exit (1);
}
+/* Set fortification error handler. Used when tests want to verify that bad
+ code is caught by the library. */
+static void
+__attribute__ ((unused))
+set_fortify_handler (void (*handler) (int sig))
+{
+ struct sigaction sa;
+
+ sa.sa_handler = handler;
+ sa.sa_flags = 0;
+ sigemptyset (&sa.sa_mask);
+
+ sigaction (SIGABRT, &sa, NULL);
+
+ /* Avoid all the buffer overflow messages on stderr. */
+ int fd = open (_PATH_DEVNULL, O_WRONLY);
+ if (fd == -1)
+ close (STDERR_FILENO);
+ else
+ {
+ dup2 (fd, STDERR_FILENO);
+ close (fd);
+ }
+ setenv ("LIBC_FATAL_STDERR_", "1", 1);
+}
+
/* We provide the entry point here. */
int
main (int argc, char *argv[])
int direct = 0; /* Directly call the test function? */
int status;
int opt;
+ unsigned int timeoutfactor = 1;
+ pid_t termpid;
+
+ /* Make uses of freed and uninitialized memory known. */
+ mallopt (M_PERTURB, 42);
#ifdef STDOUT_UNBUFFERED
setbuf (stdout, NULL);
#endif
- while ((opt = getopt_long (argc, argv, "", options, NULL)) != -1)
+ while ((opt = getopt_long (argc, argv, "+", options, NULL)) != -1)
switch (opt)
{
case '?':
#endif
}
+ /* If set, read the test TIMEOUTFACTOR value from the environment.
+ This value is used to scale the default test timeout values. */
+ char *envstr_timeoutfactor = getenv ("TIMEOUTFACTOR");
+ if (envstr_timeoutfactor != NULL)
+ {
+ char *envstr_conv = envstr_timeoutfactor;
+ unsigned long int env_fact;
+
+ env_fact = strtoul (envstr_timeoutfactor, &envstr_conv, 0);
+ if (*envstr_conv == '\0' && envstr_conv != envstr_timeoutfactor)
+ timeoutfactor = MAX (env_fact, 1);
+ }
+
/* Set TMPDIR to specified test directory. */
if (test_dir != NULL)
{
if (chdir (test_dir) < 0)
{
- perror ("chdir");
+ printf ("chdir: %m\n");
exit (1);
}
}
/* make sure temporary files are deleted. */
atexit (delete_temp_files);
+ /* Correct for the possible parameters. */
+ argv[optind - 1] = argv[0];
+ argv += optind - 1;
+ argc -= optind - 1;
+
/* Call the initializing function, if one is available. */
#ifdef PREPARE
PREPARE (argc, argv);
setrlimit (RLIMIT_CORE, &core_limit);
#endif
+#ifdef RLIMIT_DATA
+ /* Try to avoid eating all memory if a test leaks. */
+ struct rlimit data_limit;
+ if (getrlimit (RLIMIT_DATA, &data_limit) == 0)
+ {
+ if (TEST_DATA_LIMIT == RLIM_INFINITY)
+ data_limit.rlim_cur = data_limit.rlim_max;
+ else if (data_limit.rlim_cur > (rlim_t) TEST_DATA_LIMIT)
+ data_limit.rlim_cur = MIN ((rlim_t) TEST_DATA_LIMIT,
+ data_limit.rlim_max);
+ if (setrlimit (RLIMIT_DATA, &data_limit) < 0)
+ printf ("setrlimit: RLIMIT_DATA: %m\n");
+ }
+ else
+ printf ("getrlimit: RLIMIT_DATA: %m\n");
+#endif
+
+ /* We put the test process in its own pgrp so that if it bogusly
+ generates any job control signals, they won't hit the whole build. */
+ if (setpgid (0, 0) != 0)
+ printf ("Failed to set the process group ID: %m\n");
+
/* Execute the test function and exit with the return value. */
exit (TEST_FUNCTION);
}
else if (pid < 0)
{
- perror ("Cannot fork test program");
+ printf ("Cannot fork test program: %m\n");
exit (1);
}
/* Default timeout is two seconds. */
# define TIMEOUT 2
#endif
- alarm (TIMEOUT);
- signal (SIGALRM, timeout_handler);
+ signal (SIGALRM, signal_handler);
+ alarm (TIMEOUT * timeoutfactor);
+
+ /* Make sure we clean up if the wrapper gets interrupted. */
+ signal (SIGINT, signal_handler);
/* Wait for the regular termination. */
- if (waitpid (pid, &status, 0) != pid)
+ termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
+ if (termpid == -1)
+ {
+ printf ("Waiting for test program failed: %m\n");
+ exit (1);
+ }
+ if (termpid != pid)
{
- perror ("Oops, wrong test program terminated");
+ printf ("Oops, wrong test program terminated: expected %ld, got %ld\n",
+ (long int) pid, (long int) termpid);
exit (1);
}
-#ifndef EXPECTED_SIGNAL
- /* We don't expect any signal. */
-# define EXPECTED_SIGNAL 0
-#endif
- if (WTERMSIG (status) != EXPECTED_SIGNAL)
+ /* Process terminated normaly without timeout etc. */
+ if (WIFEXITED (status))
{
- if (EXPECTED_SIGNAL != 0)
- fprintf (stderr, "Incorrect signal from child: got `%s', need `%s'\n",
- strsignal (WTERMSIG (status)), strsignal (EXPECTED_SIGNAL));
- else
- fprintf (stderr, "Didn't expect signal from child: got `%s'\n",
- strsignal (WTERMSIG (status)));
+#ifndef EXPECTED_STATUS
+# ifndef EXPECTED_SIGNAL
+ /* Simply exit with the return value of the test. */
+ return WEXITSTATUS (status);
+# else
+ printf ("Expected signal '%s' from child, got none\n",
+ strsignal (EXPECTED_SIGNAL));
exit (1);
+# endif
+#else
+ if (WEXITSTATUS (status) != EXPECTED_STATUS)
+ {
+ printf ("Expected status %d, got %d\n",
+ EXPECTED_STATUS, WEXITSTATUS (status));
+ exit (1);
+ }
+
+ return 0;
+#endif
}
+ /* Process was killed by timer or other signal. */
+ else
+ {
+#ifndef EXPECTED_SIGNAL
+ printf ("Didn't expect signal from child: got `%s'\n",
+ strsignal (WTERMSIG (status)));
+ exit (1);
+#else
+ if (WTERMSIG (status) != EXPECTED_SIGNAL)
+ {
+ printf ("Incorrect signal from child: got `%s', need `%s'\n",
+ strsignal (WTERMSIG (status)),
+ strsignal (EXPECTED_SIGNAL));
+ exit (1);
+ }
- /* Simply exit with the return value of the test. */
- return WEXITSTATUS (status);
+ return 0;
+#endif
+ }
}
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