5821ba9695
The test plan for TAP needs to be declared immediately after the header. This adds the test plan API to kselftest.h and updates all callers to declare their expected test counts. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright © International Business Machines Corp., 2009
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* DESCRIPTION
|
|
* Test if FUTEX_WAIT op returns -EWOULDBLOCK if the futex value differs
|
|
* from the expected one.
|
|
*
|
|
* AUTHOR
|
|
* Gowrishankar <gowrishankar.m@in.ibm.com>
|
|
*
|
|
* HISTORY
|
|
* 2009-Nov-14: Initial version by Gowrishankar <gowrishankar.m@in.ibm.com>
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include <errno.h>
|
|
#include <getopt.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include "futextest.h"
|
|
#include "logging.h"
|
|
|
|
#define TEST_NAME "futex-wait-wouldblock"
|
|
#define timeout_ns 100000
|
|
|
|
void usage(char *prog)
|
|
{
|
|
printf("Usage: %s\n", prog);
|
|
printf(" -c Use color\n");
|
|
printf(" -h Display this help message\n");
|
|
printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
|
|
VQUIET, VCRITICAL, VINFO);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns};
|
|
futex_t f1 = FUTEX_INITIALIZER;
|
|
int res, ret = RET_PASS;
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv, "cht:v:")) != -1) {
|
|
switch (c) {
|
|
case 'c':
|
|
log_color(1);
|
|
break;
|
|
case 'h':
|
|
usage(basename(argv[0]));
|
|
exit(0);
|
|
case 'v':
|
|
log_verbosity(atoi(optarg));
|
|
break;
|
|
default:
|
|
usage(basename(argv[0]));
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
ksft_print_header();
|
|
ksft_set_plan(1);
|
|
ksft_print_msg("%s: Test the unexpected futex value in FUTEX_WAIT\n",
|
|
basename(argv[0]));
|
|
|
|
info("Calling futex_wait on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
|
|
res = futex_wait(&f1, f1+1, &to, FUTEX_PRIVATE_FLAG);
|
|
if (!res || errno != EWOULDBLOCK) {
|
|
fail("futex_wait returned: %d %s\n",
|
|
res ? errno : res, res ? strerror(errno) : "");
|
|
ret = RET_FAIL;
|
|
}
|
|
|
|
print_result(TEST_NAME, ret);
|
|
return ret;
|
|
}
|