// SPDX-License-Identifier: GPL-2.0-or-later
/*
* futex_waitv() test by André Almeida <[email protected]>
*
* Copyright 2021 Collabora Ltd.
*/
#include <errno.h>
#include <error.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
#include <stdint.h>
#include <sys/shm.h>
#include "futextest.h"
#include "futex2test.h"
#include "logging.h"
#define TEST_NAME "futex-wait"
#define WAKE_WAIT_US 10000
#define NR_FUTEXES 30
static struct futex_waitv waitv[NR_FUTEXES];
u_int32_t futexes[NR_FUTEXES] = {0};
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);
}
void *waiterfn(void *arg)
{
struct timespec to;
int res;
/* setting absolute timeout for futex2 */
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
if (res < 0) {
ksft_test_result_fail("futex_waitv returned: %d %s\n",
errno, strerror(errno));
} else if (res != NR_FUTEXES - 1) {
ksft_test_result_fail("futex_waitv returned: %d, expecting %d\n",
res, NR_FUTEXES - 1);
}
return NULL;
}
int main(int argc, char *argv[])
{
pthread_t waiter;
int res, ret = RET_PASS;
struct timespec to;
int c, i;
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(7);
ksft_print_msg("%s: Test FUTEX_WAITV\n",
basename(argv[0]));
for (i = 0; i < NR_FUTEXES; i++) {
waitv[i].uaddr = (uintptr_t)&futexes[i];
waitv[i].flags = FUTEX_32 | FUTEX_PRIVATE_FLAG;
waitv[i].val = 0;
waitv[i].__reserved = 0;
}
/* Private waitv */
if (pthread_create(&waiter, NULL, waiterfn, NULL))
error("pthread_create failed\n", errno);
usleep(WAKE_WAIT_US);
res = futex_wake(u64_to_ptr(waitv[NR_FUTEXES - 1].uaddr), 1, FUTEX_PRIVATE_FLAG);
if (res != 1) {
ksft_test_result_fail("futex_wake private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv private\n");
}
/* Shared waitv */
for (i = 0; i < NR_FUTEXES; i++) {
int shm_id = shmget(IPC_PRIVATE, 4096, IPC_CREAT | 0666);
if (shm_id < 0) {
perror("shmget");
exit(1);
}
unsigned int *shared_data = shmat(shm_id, NULL, 0);
*shared_data = 0;
waitv[i].uaddr = (uintptr_t)shared_data;
waitv[i].flags = FUTEX_32;
waitv[i].val = 0;
waitv[i].__reserved = 0;
}
if (pthread_create(&waiter, NULL, waiterfn, NULL))
error("pthread_create failed\n", errno);
usleep(WAKE_WAIT_US);
res = futex_wake(u64_to_ptr(waitv[NR_FUTEXES - 1].uaddr), 1, 0);
if (res != 1) {
ksft_test_result_fail("futex_wake shared returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv shared\n");
}
for (i = 0; i < NR_FUTEXES; i++)
shmdt(u64_to_ptr(waitv[i].uaddr));
/* Testing a waiter without FUTEX_32 flag */
waitv[0].flags = FUTEX_PRIVATE_FLAG;
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
if (res == EINVAL) {
ksft_test_result_fail("futex_waitv private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv without FUTEX_32\n");
}
/* Testing a waiter with an unaligned address */
waitv[0].flags = FUTEX_PRIVATE_FLAG | FUTEX_32;
waitv[0].uaddr = 1;
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
if (res == EINVAL) {
ksft_test_result_fail("futex_wake private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv with an unaligned address\n");
}
/* Testing a NULL address for waiters.uaddr */
waitv[0].uaddr = 0x00000000;
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
if (res == EINVAL) {
ksft_test_result_fail("futex_waitv private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv NULL address in waitv.uaddr\n");
}
/* Testing a NULL address for *waiters */
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(NULL, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
if (res == EINVAL) {
ksft_test_result_fail("futex_waitv private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv NULL address in *waiters\n");
}
/* Testing an invalid clockid */
if (clock_gettime(CLOCK_MONOTONIC, &to))
error("gettime64 failed\n", errno);
to.tv_sec++;
res = futex_waitv(NULL, NR_FUTEXES, 0, &to, CLOCK_TAI);
if (res == EINVAL) {
ksft_test_result_fail("futex_waitv private returned: %d %s\n",
res ? errno : res,
res ? strerror(errno) : "");
ret = RET_FAIL;
} else {
ksft_test_result_pass("futex_waitv invalid clockid\n");
}
ksft_print_cnts();
return ret;
}
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