diff mbox

[v2,16/16] Add SYSV shared memory test

Message ID 1478114813-3526-17-git-send-email-adhemerval.zanella@linaro.org
State Superseded
Headers show

Commit Message

Adhemerval Zanella Netto Nov. 2, 2016, 7:26 p.m. UTC 
Changes from previous version:

  - Use __ASSUME_SYSVIPC_SYSCALL instead of __NR_syscall to issue the
    wired syscall or the ipc one.

--

This patch adds a simple SYSV shared memory test to check for correct
argument passing on kernel.  The idea is neither to be an extensive
testing nor to check for any specific Linux test.

	* sysvipc/Makefile (tests): Add test-sysvshm.
	* sysvipc/test-sysvshm.c: New file.
---
 ChangeLog              |   3 ++
 sysvipc/Makefile       |   2 +-
 sysvipc/test-sysvshm.c | 130 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 134 insertions(+), 1 deletion(-)
 create mode 100644 sysvipc/test-sysvshm.c

-- 
2.7.4

Comments

Yury Norov Nov. 3, 2016, 5:13 p.m. UTC | #1 
On Wed, Nov 02, 2016 at 05:26:53PM -0200, Adhemerval Zanella wrote:
> Changes from previous version:

> 

>   - Use __ASSUME_SYSVIPC_SYSCALL instead of __NR_syscall to issue the

>     wired syscall or the ipc one.

> 

> --

> 

> This patch adds a simple SYSV shared memory test to check for correct

> argument passing on kernel.  The idea is neither to be an extensive

> testing nor to check for any specific Linux test.

> 

> 	* sysvipc/Makefile (tests): Add test-sysvshm.

> 	* sysvipc/test-sysvshm.c: New file.

> ---

>  ChangeLog              |   3 ++

>  sysvipc/Makefile       |   2 +-

>  sysvipc/test-sysvshm.c | 130 +++++++++++++++++++++++++++++++++++++++++++++++++

>  3 files changed, 134 insertions(+), 1 deletion(-)

>  create mode 100644 sysvipc/test-sysvshm.c

> 

> diff --git a/sysvipc/Makefile b/sysvipc/Makefile

> index 32d64dc..daede74 100644

> --- a/sysvipc/Makefile

> +++ b/sysvipc/Makefile

> @@ -30,7 +30,7 @@ routines := ftok \

>  	    semop semget semctl semtimedop \

>  	    shmat shmdt shmget shmctl

>  

> -tests    := test-sysvmsg test-sysvsem

> +tests    := test-sysvmsg test-sysvsem test-sysvshm

>  

>  include ../Rules

>  

> diff --git a/sysvipc/test-sysvshm.c b/sysvipc/test-sysvshm.c

> new file mode 100644

> index 0000000..4f3f22e

> --- /dev/null

> +++ b/sysvipc/test-sysvshm.c

> @@ -0,0 +1,130 @@

> +/* Basic tests for SYSV shared memory functions.

> +   Copyright (C) 2016 Free Software Foundation, Inc.

> +   This file is part of the GNU C Library.

> +

> +   The GNU C Library is free software; you can redistribute it and/or

> +   modify it under the terms of the GNU Lesser General Public

> +   License as published by the Free Software Foundation; either

> +   version 2.1 of the License, or (at your option) any later version.

> +

> +   The GNU C Library 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

> +   Lesser General Public License for more details.

> +

> +   You should have received a copy of the GNU Lesser General Public

> +   License along with the GNU C Library; if not, see

> +   <http://www.gnu.org/licenses/>.  */

> +

> +#include <stdio.h>

> +#include <stdlib.h>

> +#include <errno.h>

> +#include <string.h>

> +#include <sys/types.h>

> +#include <sys/ipc.h>

> +#include <sys/shm.h>

> +

> +static void do_prepare (void);

> +#define PREPARE(argc, argv)	do_prepare ()

> +static int do_test (void);

> +#define TEST_FUNCTION           do_test ()

> +

> +/* This defines the `main' function and some more.  */

> +#include <test-skeleton.c>

> +

> +/* These are for the temporary file we generate.  */

> +static char *name;

> +static int shmid;

> +

> +static void

> +remove_shm (void)

> +{

> +  /* Enforce message queue removal in case o early test failure.  


Trailing whitespace

> +     Ignore error since the msgq maybe already being removed.  */

> +  shmctl (shmid, IPC_RMID, 0);

> +}

> +

> +static void

> +do_prepare (void)

> +{

> +  int fd = create_temp_file ("tst-sysvshm.", &name);

> +  if (fd == -1)

> +    FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno);

> +}

> +

> +#define CHECK_EQ(v, k) \

> +  if ((v) != (k)) \

> +    FAIL_EXIT1("%d != %d", v, k)

> +

> +/* It is not an extensive test, but rather a functional one aimed to check

> +   correct parameter passing on kernel.  */

> +

> +#define SHM_MODE 0666

> +

> +static int

> +do_test (void)

> +{

> +  atexit (remove_shm);

> +

> +  key_t key = ftok (name, 'G');

> +  if (key == -1)

> +    FAIL_EXIT1 ("ftok failed");

> +

> +  long int pgsz = sysconf (_SC_PAGESIZE);

> +  if (pgsz == -1)

> +    FAIL_EXIT1 ("sysconf (_SC_PAGESIZE) failed (errno = %d)", errno);

> +

> +  shmid = shmget(key, pgsz, IPC_CREAT | IPC_EXCL | SHM_MODE);

> +  if (shmid == -1)

> +    {

> +      if (errno == ENOSYS)

> +	FAIL_UNSUPPORTED ("msgget not supported");

> +      FAIL_EXIT1 ("msgget failed (errno=%d)", errno);

> +    }

> +

> +  /* Get shared memory kernel information and do some sanitiy checks.  */

> +  struct shmid_ds shminfo;

> +  if (shmctl (shmid, IPC_STAT, &shminfo) == -1)

> +    FAIL_EXIT1 ("shmctl with IPC_STAT failed (errno=%d)", errno);

> +

> +  if (shminfo.shm_perm.__key != key)

> +    FAIL_EXIT1 ("msgid_ds::msg_perm::key (%d) != %d",

> +		(int) shminfo.shm_perm.__key, (int) key);

> +  if (shminfo.shm_perm.mode != SHM_MODE)

> +    FAIL_EXIT1 ("msgid_ds::shm_perm::mode (%o) != %o",

> +		shminfo.shm_perm.mode, SHM_MODE);

> +  if (shminfo.shm_segsz != pgsz)

> +    FAIL_EXIT1 ("msgid_ds::shm_segsz (%lu) != %lu",

> +		(long unsigned) shminfo.shm_segsz, pgsz);

> +

> +  /* Attach on shared memory and realize some operations.  */

> +  int *shmem = shmat (shmid, NULL, 0);

> +  if (shmem == (void*) -1)

> +    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);

> +

> +  shmem[0]   = 0x55555555;

> +  shmem[32]  = 0x44444444;

> +  shmem[64]  = 0x33333333;

> +  shmem[128] = 0x22222222;

> +  


And here

> +  if (shmdt (shmem) == -1)

> +    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);

> +

> +  shmem = shmat (shmid, NULL, SHM_RDONLY);

> +  if (shmem == (void*) -1)

> +    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);

> +

> +  CHECK_EQ (shmem[0],   0x55555555);

> +  CHECK_EQ (shmem[32],  0x44444444);

> +  CHECK_EQ (shmem[64],  0x33333333);

> +  CHECK_EQ (shmem[128], 0x22222222);

> +  


And here

> +  if (shmdt (shmem) == -1)

> +    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);

> +

> +  /* Finally free up the semnaphore resource.  */

> +  if (shmctl (shmid, IPC_RMID, 0) == -1)

> +    FAIL_EXIT1 ("semctl failed (errno=%d)", errno);

> +

> +  return 0;

> +}

> -- 

> 2.7.4
diff mbox

Patch

diff --git a/sysvipc/Makefile b/sysvipc/Makefile
index 32d64dc..daede74 100644
--- a/sysvipc/Makefile
+++ b/sysvipc/Makefile
@@ -30,7 +30,7 @@  routines := ftok \
 	    semop semget semctl semtimedop \
 	    shmat shmdt shmget shmctl
 
-tests    := test-sysvmsg test-sysvsem
+tests    := test-sysvmsg test-sysvsem test-sysvshm
 
 include ../Rules
 
diff --git a/sysvipc/test-sysvshm.c b/sysvipc/test-sysvshm.c
new file mode 100644
index 0000000..4f3f22e
--- /dev/null
+++ b/sysvipc/test-sysvshm.c
@@ -0,0 +1,130 @@ 
+/* Basic tests for SYSV shared memory functions.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+static void do_prepare (void);
+#define PREPARE(argc, argv)	do_prepare ()
+static int do_test (void);
+#define TEST_FUNCTION           do_test ()
+
+/* This defines the `main' function and some more.  */
+#include <test-skeleton.c>
+
+/* These are for the temporary file we generate.  */
+static char *name;
+static int shmid;
+
+static void
+remove_shm (void)
+{
+  /* Enforce message queue removal in case o early test failure.  
+     Ignore error since the msgq maybe already being removed.  */
+  shmctl (shmid, IPC_RMID, 0);
+}
+
+static void
+do_prepare (void)
+{
+  int fd = create_temp_file ("tst-sysvshm.", &name);
+  if (fd == -1)
+    FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno);
+}
+
+#define CHECK_EQ(v, k) \
+  if ((v) != (k)) \
+    FAIL_EXIT1("%d != %d", v, k)
+
+/* It is not an extensive test, but rather a functional one aimed to check
+   correct parameter passing on kernel.  */
+
+#define SHM_MODE 0666
+
+static int
+do_test (void)
+{
+  atexit (remove_shm);
+
+  key_t key = ftok (name, 'G');
+  if (key == -1)
+    FAIL_EXIT1 ("ftok failed");
+
+  long int pgsz = sysconf (_SC_PAGESIZE);
+  if (pgsz == -1)
+    FAIL_EXIT1 ("sysconf (_SC_PAGESIZE) failed (errno = %d)", errno);
+
+  shmid = shmget(key, pgsz, IPC_CREAT | IPC_EXCL | SHM_MODE);
+  if (shmid == -1)
+    {
+      if (errno == ENOSYS)
+	FAIL_UNSUPPORTED ("msgget not supported");
+      FAIL_EXIT1 ("msgget failed (errno=%d)", errno);
+    }
+
+  /* Get shared memory kernel information and do some sanitiy checks.  */
+  struct shmid_ds shminfo;
+  if (shmctl (shmid, IPC_STAT, &shminfo) == -1)
+    FAIL_EXIT1 ("shmctl with IPC_STAT failed (errno=%d)", errno);
+
+  if (shminfo.shm_perm.__key != key)
+    FAIL_EXIT1 ("msgid_ds::msg_perm::key (%d) != %d",
+		(int) shminfo.shm_perm.__key, (int) key);
+  if (shminfo.shm_perm.mode != SHM_MODE)
+    FAIL_EXIT1 ("msgid_ds::shm_perm::mode (%o) != %o",
+		shminfo.shm_perm.mode, SHM_MODE);
+  if (shminfo.shm_segsz != pgsz)
+    FAIL_EXIT1 ("msgid_ds::shm_segsz (%lu) != %lu",
+		(long unsigned) shminfo.shm_segsz, pgsz);
+
+  /* Attach on shared memory and realize some operations.  */
+  int *shmem = shmat (shmid, NULL, 0);
+  if (shmem == (void*) -1)
+    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);
+
+  shmem[0]   = 0x55555555;
+  shmem[32]  = 0x44444444;
+  shmem[64]  = 0x33333333;
+  shmem[128] = 0x22222222;
+  
+  if (shmdt (shmem) == -1)
+    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);
+
+  shmem = shmat (shmid, NULL, SHM_RDONLY);
+  if (shmem == (void*) -1)
+    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);
+
+  CHECK_EQ (shmem[0],   0x55555555);
+  CHECK_EQ (shmem[32],  0x44444444);
+  CHECK_EQ (shmem[64],  0x33333333);
+  CHECK_EQ (shmem[128], 0x22222222);
+  
+  if (shmdt (shmem) == -1)
+    FAIL_EXIT1 ("shmem failed (errno=%d)", errno);
+
+  /* Finally free up the semnaphore resource.  */
+  if (shmctl (shmid, IPC_RMID, 0) == -1)
+    FAIL_EXIT1 ("semctl failed (errno=%d)", errno);
+
+  return 0;
+}