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- Committer: Michael Hope
- Date: 2010-09-02 02:26:33 UTC
- Revision ID: michael.hope@linaro.org-20100902022633-xbddfwagsup43ykn
Added a README. Re-factored the build into a top level Makefile.
- files added:
- README
- tests
- files renamed:
- src/Makefile.am => Makefile.am
- src/configure.ac => configure.ac
- files modified:
- benchmarks/multi/harness.c
added
removed
tests/test-skeleton.c
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/* Skeleton for test programs.
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Copyright (C) 1998,2000-2004, 2005, 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <getopt.h>
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#include <malloc.h>
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#include <search.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <sys/param.h>
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#include <time.h>
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/* The test function is normally called `do_test' and it is called
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with argc and argv as the arguments. We nevertheless provide the
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possibility to overwrite this name. */
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#ifndef TEST_FUNCTION
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# define TEST_FUNCTION do_test (argc, argv)
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#endif
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#ifndef TEST_DATA_LIMIT
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# define TEST_DATA_LIMIT (64 << 20) /* Data limit (bytes) to run with. */
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#endif
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#define OPT_DIRECT 1000
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#define OPT_TESTDIR 1001
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static struct option options[] =
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{
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#ifdef CMDLINE_OPTIONS
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CMDLINE_OPTIONS
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#endif
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{ "direct", no_argument, NULL, OPT_DIRECT },
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{ "test-dir", required_argument, NULL, OPT_TESTDIR },
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{ NULL, 0, NULL, 0 }
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};
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/* PID of the test itself. */
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static pid_t pid;
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/* Directory to place temporary files in. */
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static const char *test_dir;
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/* List of temporary files. */
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struct temp_name_list
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{
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struct qelem q;
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const char *name;
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} *temp_name_list;
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/* Add temporary files in list. */
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static void
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__attribute__ ((unused))
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add_temp_file (const char *name)
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{
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struct temp_name_list *newp
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= (struct temp_name_list *) calloc (sizeof (*newp), 1);
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if (newp != NULL)
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{
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newp->name = name;
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if (temp_name_list == NULL)
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temp_name_list = (struct temp_name_list *) &newp->q;
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else
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insque (newp, temp_name_list);
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}
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}
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/* Delete all temporary files. */
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static void
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delete_temp_files (void)
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{
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while (temp_name_list != NULL)
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{
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remove (temp_name_list->name);
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temp_name_list = (struct temp_name_list *) temp_name_list->q.q_forw;
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}
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}
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/* Create a temporary file. */
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static int
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__attribute__ ((unused))
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create_temp_file (const char *base, char **filename)
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{
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char *fname;
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int fd;
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fname = (char *) malloc (strlen (test_dir) + 1 + strlen (base)
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+ sizeof ("XXXXXX"));
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if (fname == NULL)
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{
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puts ("out of memory");
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return -1;
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}
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strcpy (stpcpy (stpcpy (stpcpy (fname, test_dir), "/"), base), "XXXXXX");
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fd = mkstemp (fname);
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if (fd == -1)
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{
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printf ("cannot open temporary file '%s': %m\n", fname);
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free (fname);
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return -1;
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}
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add_temp_file (fname);
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if (filename != NULL)
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*filename = fname;
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return fd;
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}
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/* Timeout handler. We kill the child and exit with an error. */
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static void
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__attribute__ ((noreturn))
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signal_handler (int sig __attribute__ ((unused)))
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{
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int killed;
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int status;
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/* Send signal. */
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kill (pid, SIGKILL);
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/* Wait for it to terminate. */
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int i;
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for (i = 0; i < 5; ++i)
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{
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killed = waitpid (pid, &status, WNOHANG|WUNTRACED);
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if (killed != 0)
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break;
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/* Delay, give the system time to process the kill. If the
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nanosleep() call return prematurely, all the better. We
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won't restart it since this probably means the child process
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finally died. */
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struct timespec ts;
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ts.tv_sec = 0;
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ts.tv_nsec = 100000000;
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nanosleep (&ts, NULL);
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}
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if (killed != 0 && killed != pid)
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{
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perror ("Failed to kill test process");
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exit (1);
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}
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#ifdef CLEANUP_HANDLER
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CLEANUP_HANDLER;
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#endif
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if (sig == SIGINT)
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{
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signal (sig, SIG_DFL);
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raise (sig);
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}
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/* If we expected this signal: good! */
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#ifdef EXPECTED_SIGNAL
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if (EXPECTED_SIGNAL == SIGALRM)
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exit (0);
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#endif
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if (killed == 0 || (WIFSIGNALED (status) && WTERMSIG (status) == SIGKILL))
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fputs ("Timed out: killed the child process\n", stderr);
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else if (WIFSTOPPED (status))
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fprintf (stderr, "Timed out: the child process was %s\n",
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strsignal (WSTOPSIG (status)));
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else if (WIFSIGNALED (status))
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fprintf (stderr, "Timed out: the child process got signal %s\n",
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strsignal (WTERMSIG (status)));
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else
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fprintf (stderr, "Timed out: killed the child process but it exited %d\n",
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WEXITSTATUS (status));
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/* Exit with an error. */
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exit (1);
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}
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/* We provide the entry point here. */
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int
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main (int argc, char *argv[])
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{
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int direct = 0; /* Directly call the test function? */
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int status;
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int opt;
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unsigned int timeoutfactor = 1;
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pid_t termpid;
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/* Make uses of freed and uninitialized memory known. */
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mallopt (M_PERTURB, 42);
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#ifdef STDOUT_UNBUFFERED
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setbuf (stdout, NULL);
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#endif
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while ((opt = getopt_long (argc, argv, "+", options, NULL)) != -1)
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switch (opt)
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{
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case '?':
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exit (1);
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case OPT_DIRECT:
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direct = 1;
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break;
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case OPT_TESTDIR:
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test_dir = optarg;
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break;
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#ifdef CMDLINE_PROCESS
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CMDLINE_PROCESS
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#endif
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}
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/* If set, read the test TIMEOUTFACTOR value from the environment.
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This value is used to scale the default test timeout values. */
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char *envstr_timeoutfactor = getenv ("TIMEOUTFACTOR");
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if (envstr_timeoutfactor != NULL)
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{
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char *envstr_conv = envstr_timeoutfactor;
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unsigned long int env_fact;
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env_fact = strtoul (envstr_timeoutfactor, &envstr_conv, 0);
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if (*envstr_conv == '\0' && envstr_conv != envstr_timeoutfactor)
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timeoutfactor = MAX (env_fact, 1);
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}
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/* Set TMPDIR to specified test directory. */
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if (test_dir != NULL)
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{
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setenv ("TMPDIR", test_dir, 1);
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if (chdir (test_dir) < 0)
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{
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perror ("chdir");
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exit (1);
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}
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}
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else
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{
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test_dir = getenv ("TMPDIR");
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if (test_dir == NULL || test_dir[0] == '\0')
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test_dir = "/tmp";
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}
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/* Make sure we see all message, even those on stdout. */
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setvbuf (stdout, NULL, _IONBF, 0);
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/* make sure temporary files are deleted. */
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atexit (delete_temp_files);
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/* Correct for the possible parameters. */
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argv[optind - 1] = argv[0];
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argv += optind - 1;
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argc -= optind - 1;
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/* Call the initializing function, if one is available. */
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#ifdef PREPARE
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PREPARE (argc, argv);
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#endif
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/* If we are not expected to fork run the function immediately. */
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if (direct)
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return TEST_FUNCTION;
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/* Set up the test environment:
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- prevent core dumps
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- set up the timer
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- fork and execute the function. */
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pid = fork ();
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if (pid == 0)
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{
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/* This is the child. */
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#ifdef RLIMIT_CORE
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/* Try to avoid dumping core. */
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struct rlimit core_limit;
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core_limit.rlim_cur = 0;
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core_limit.rlim_max = 0;
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setrlimit (RLIMIT_CORE, &core_limit);
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#endif
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#ifdef RLIMIT_DATA
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/* Try to avoid eating all memory if a test leaks. */
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struct rlimit data_limit;
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if (getrlimit (RLIMIT_DATA, &data_limit) == 0)
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{
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if (TEST_DATA_LIMIT == RLIM_INFINITY)
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data_limit.rlim_cur = data_limit.rlim_max;
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else if (data_limit.rlim_cur > (rlim_t) TEST_DATA_LIMIT)
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data_limit.rlim_cur = MIN ((rlim_t) TEST_DATA_LIMIT,
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data_limit.rlim_max);
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if (setrlimit (RLIMIT_DATA, &data_limit) < 0)
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perror ("setrlimit: RLIMIT_DATA");
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}
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else
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perror ("getrlimit: RLIMIT_DATA");
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#endif
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/* We put the test process in its own pgrp so that if it bogusly
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generates any job control signals, they won't hit the whole build. */
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setpgid (0, 0);
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/* Execute the test function and exit with the return value. */
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exit (TEST_FUNCTION);
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}
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else if (pid < 0)
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{
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perror ("Cannot fork test program");
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exit (1);
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}
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/* Set timeout. */
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#ifndef TIMEOUT
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/* Default timeout is two seconds. */
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# define TIMEOUT 2
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#endif
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signal (SIGALRM, signal_handler);
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alarm (TIMEOUT * timeoutfactor);
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/* Make sure we clean up if the wrapper gets interrupted. */
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signal (SIGINT, signal_handler);
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/* Wait for the regular termination. */
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termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
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if (termpid == -1)
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{
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printf ("Waiting for test program failed: %m\n");
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exit (1);
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}
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if (termpid != pid)
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{
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printf ("Oops, wrong test program terminated: expected %ld, got %ld\n",
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(long int) pid, (long int) termpid);
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exit (1);
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}
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#ifndef EXPECTED_SIGNAL
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/* We don't expect any signal. */
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# define EXPECTED_SIGNAL 0
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#endif
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if (WTERMSIG (status) != EXPECTED_SIGNAL)
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{
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if (EXPECTED_SIGNAL != 0)
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{
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if (WTERMSIG (status) == 0)
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fprintf (stderr,
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"Expected signal '%s' from child, got none\n",
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strsignal (EXPECTED_SIGNAL));
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else
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fprintf (stderr,
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"Incorrect signal from child: got `%s', need `%s'\n",
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strsignal (WTERMSIG (status)),
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strsignal (EXPECTED_SIGNAL));
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}
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else
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fprintf (stderr, "Didn't expect signal from child: got `%s'\n",
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strsignal (WTERMSIG (status)));
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exit (1);
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}
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/* Simply exit with the return value of the test. */
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#ifndef EXPECTED_STATUS
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return WEXITSTATUS (status);
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#else
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if (WEXITSTATUS (status) != EXPECTED_STATUS)
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{
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fprintf (stderr, "Expected status %d, got %d\n",
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EXPECTED_STATUS, WEXITSTATUS (status));
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exit (1);
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}
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return 0;
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#endif
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}
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