[LTP] [PATCH 4/7] syscalls: mremap02: Convert to new API
Ricardo B. Marlière
rbm@suse.com
Tue Jul 8 22:11:58 CEST 2025
From: Ricardo B. Marlière <rbm@suse.com>
Signed-off-by: Ricardo B. Marlière <rbm@suse.com>
---
testcases/kernel/syscalls/mremap/mremap02.c | 192 ++++------------------------
1 file changed, 28 insertions(+), 164 deletions(-)
diff --git a/testcases/kernel/syscalls/mremap/mremap02.c b/testcases/kernel/syscalls/mremap/mremap02.c
index 2dabc68472a2686a83b7ab7bb2fdd92611a6e8de..7618590e9a807fd6f907a4472daa93220165009c 100644
--- a/testcases/kernel/syscalls/mremap/mremap02.c
+++ b/testcases/kernel/syscalls/mremap/mremap02.c
@@ -1,178 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- *
- * Copyright (c) International Business Machines Corp., 2001
- *
- * 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.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/*
- * Test Name: mremap02
- *
- * Test Description:
- * Verify that,
- * mremap() fails when used to expand the existing virtual memory mapped
- * region to the requested size, if the virtual memory area previously
- * mapped was not page aligned or invalid argument specified.
- *
- * Expected Result:
- * mremap() should return -1 and set errno to EINVAL.
- *
- * Algorithm:
- * Setup:
- * Setup signal handling.
- * Pause for SIGUSR1 if option specified.
- *
- * Test:
- * Loop if the proper options are given.
- * Execute system call
- * Check return code, if system call failed (return=-1)
- * if errno set == expected errno
- * Issue sys call fails with expected return value and errno.
- * Otherwise,
- * Issue sys call fails with unexpected errno.
- * Otherwise,
- * Issue sys call returns unexpected value.
- *
- * Cleanup:
- * Print errno log and/or timing stats if options given
- *
- * Usage: <for command-line>
- * mremap02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
- * where, -c n : Run n copies concurrently.
- * -e : Turn on errno logging.
- * -i n : Execute test n times.
- * -I x : Execute test for x seconds.
- * -p x : Pause for x seconds between iterations.
- * -t : Turn on syscall timing.
- *
- * HISTORY
+ * Copyright (c) International Business Machines Corp., 2001
* 07/2001 Ported by Wayne Boyer
- *
- * 11/09/2001 Manoj Iyer (manjo@austin.ibm.com)
- * Modified.
- * - #include <linux/mman.h> should not be included as per man page for
- * mremap, #include <sys/mman.h> alone should do the job. But inorder
- * to include definition of MREMAP_MAYMOVE defined in bits/mman.h
- * (included by sys/mman.h) __USE_GNU needs to be defined.
- * There may be a more elegant way of doing this...
- *
- *
- * RESTRICTIONS:
- * None.
+ * 11/09/2001 Manoj Iyer (manjo@austin.ibm.com)
+ * Copyright (c) 2025 SUSE LLC Ricardo B. Marlière <rbm@suse.com>
*/
-#define _GNU_SOURCE
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#include "test.h"
-
-char *TCID = "mremap02";
-int TST_TOTAL = 1;
-char *addr; /* addr of memory mapped region */
-int memsize; /* memory mapped size */
-int newsize; /* new size of virtual memory block */
-
-void setup(); /* Main setup function of test */
-void cleanup(); /* cleanup function for the test */
-
-int main(int ac, char **av)
-{
- int lc;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
-
- tst_count = 0;
-
- /*
- * Attempt to expand the existing mapped
- * memory region (memsize) by newsize limits using
- * mremap() should fail as old virtual address is not
- * page aligned.
- */
- errno = 0;
- addr = mremap(addr, memsize, newsize, MREMAP_MAYMOVE);
- TEST_ERRNO = errno;
- /* Check for the return value of mremap() */
- if (addr != MAP_FAILED) {
- tst_resm(TFAIL,
- "mremap returned invalid value, expected: -1");
-
- /* Unmap the mapped memory region */
- if (munmap(addr, newsize) != 0) {
- tst_brkm(TBROK, cleanup, "munmap fails to "
- "unmap the expanded memory region, "
- "error=%d", errno);
- }
- continue;
- }
+/*\
+ * Verify that mremap() fails with EINVAL when used to expand the existing
+ * virtual memory mapped region to the requested size, if the virtual memory
+ * area previously mapped was not page aligned or invalid argument specified.
+ */
- if (errno == EINVAL) {
- tst_resm(TPASS, "mremap() Failed, 'invalid argument "
- "specified' - errno %d", TEST_ERRNO);
- } else {
- tst_resm(TFAIL, "mremap() Failed, "
- "'Unexpected errno %d", TEST_ERRNO);
- }
- }
+#define _GNU_SOURCE
- cleanup();
- tst_exit();
+#include "tst_test.h"
-}
-
-/*
- * setup() - performs all ONE TIME setup for this test.
- *
- * Get system page size, Set the size of virtual memory area and the
- * new size after resize, Set the virtual memory address such that it
- * is not aligned.
- */
-void setup(void)
+static void run(void)
{
+ char *addr;
+ int memsize;
- tst_sig(FORK, DEF_HANDLER, cleanup);
+ memsize = SAFE_SYSCONF(_SC_PAGESIZE);
- TEST_PAUSE;
+ addr = SAFE_MMAP(NULL, memsize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
- /* Get the system page size */
- if ((memsize = getpagesize()) < 0) {
- tst_brkm(TFAIL, NULL,
- "getpagesize() fails to get system page size");
- }
+ /* Pass misaligned address to mremap() */
+ TST_EXP_FAIL_PTR_VOID(mremap(addr + (memsize - 1), memsize, memsize * 2,
+ MREMAP_MAYMOVE),
+ EINVAL);
- /* Get the New size of virtual memory block after resize */
- newsize = (memsize * 2);
-
- /* Set the old virtual memory address */
- addr = (char *)(addr + (memsize - 1));
+ if (TST_RET_PTR != MAP_FAILED)
+ SAFE_MUNMAP(TST_RET_PTR, memsize);
+ else
+ SAFE_MUNMAP(addr, memsize);
}
-/*
- * cleanup() - performs all ONE TIME cleanup for this test at
- * completion or premature exit.
- */
-void cleanup(void)
-{
-
- /* Exit the program */
-
-}
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.50.0
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