mirror of
git://git.yoctoproject.org/linux-yocto.git
synced 2025-08-21 16:31:14 +02:00
f76f9bc616
When building with clang, via:
make LLVM=1 -C tools/testing/selftests
...clang warns about mismatches between the expected and required
integer length being supplied to abs(3).
Fix this by using the correct variant of abs(3): labs(3) or llabs(3), in
these cases.
Reviewed-by: Dmitry Safonov <dima@arista.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Andrei Vagin <avagin@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#define _GNU_SOURCE
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <sched.h>
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/syscall.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "log.h"
|
|
#include "timens.h"
|
|
|
|
#define OFFSET (36000)
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct timespec now, tst;
|
|
int status, i;
|
|
pid_t pid;
|
|
|
|
if (argc > 1) {
|
|
if (sscanf(argv[1], "%ld", &now.tv_sec) != 1)
|
|
return pr_perror("sscanf");
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
_gettime(CLOCK_MONOTONIC, &tst, i);
|
|
if (labs(tst.tv_sec - now.tv_sec) > 5)
|
|
return pr_fail("%ld %ld\n", now.tv_sec, tst.tv_sec);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
nscheck();
|
|
|
|
ksft_set_plan(1);
|
|
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
|
|
if (unshare_timens())
|
|
return 1;
|
|
|
|
if (_settime(CLOCK_MONOTONIC, OFFSET))
|
|
return 1;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
_gettime(CLOCK_MONOTONIC, &tst, i);
|
|
if (labs(tst.tv_sec - now.tv_sec) > 5)
|
|
return pr_fail("%ld %ld\n",
|
|
now.tv_sec, tst.tv_sec);
|
|
}
|
|
|
|
if (argc > 1)
|
|
return 0;
|
|
|
|
pid = fork();
|
|
if (pid < 0)
|
|
return pr_perror("fork");
|
|
|
|
if (pid == 0) {
|
|
char now_str[64];
|
|
char *cargv[] = {"exec", now_str, NULL};
|
|
char *cenv[] = {NULL};
|
|
|
|
/* Check that a child process is in the new timens. */
|
|
for (i = 0; i < 2; i++) {
|
|
_gettime(CLOCK_MONOTONIC, &tst, i);
|
|
if (labs(tst.tv_sec - now.tv_sec - OFFSET) > 5)
|
|
return pr_fail("%ld %ld\n",
|
|
now.tv_sec + OFFSET, tst.tv_sec);
|
|
}
|
|
|
|
/* Check for proper vvar offsets after execve. */
|
|
snprintf(now_str, sizeof(now_str), "%ld", now.tv_sec + OFFSET);
|
|
execve("/proc/self/exe", cargv, cenv);
|
|
return pr_perror("execve");
|
|
}
|
|
|
|
if (waitpid(pid, &status, 0) != pid)
|
|
return pr_perror("waitpid");
|
|
|
|
if (status)
|
|
ksft_exit_fail();
|
|
|
|
ksft_test_result_pass("exec\n");
|
|
ksft_exit_pass();
|
|
return 0;
|
|
}
|