[LTP] [PATCH 1/2] sbrk/sbrk01.c: cleanup

[LTP] [PATCH 1/2] sbrk/sbrk01.c: cleanup

[Zeng Linggang]

* Delete some useless commtents.
* Move the test body from main() to sbrk_verify().
* Remove tst_tmpdir().
* Some cleanup.

Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
---
 testcases/kernel/syscalls/sbrk/sbrk01.c | 236 +++++++-------------------------
 1 file changed, 52 insertions(+), 184 deletions(-)

diff --git a/testcases/kernel/syscalls/sbrk/sbrk01.c b/testcases/kernel/syscalls/sbrk/sbrk01.c
index b2db42c..f2b09f4 100644
--- a/testcases/kernel/syscalls/sbrk/sbrk01.c
+++ b/testcases/kernel/syscalls/sbrk/sbrk01.c
@@ -1,5 +1,7 @@
 /*
  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *  AUTHOR		: William Roske
+ *  CO-PILOT		: Dave Fenner
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -30,84 +32,11 @@
  * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
  *
  */
-/* $Id: sbrk01.c,v 1.8 2009/06/09 16:01:21 subrata_modak Exp $ */
-/**********************************************************
- *
- *    OS Test - Silicon Graphics, Inc.
- *
- *    TEST IDENTIFIER	: sbrk01
- *
- *    EXECUTED BY	: anyone
- *
- *    TEST TITLE	: Basic test for sbrk(2)
- *
- *    PARENT DOCUMENT	: usctpl01
- *
- *    TEST CASE TOTAL	: 2
- *
- *    WALL CLOCK TIME	: 1
- *
- *    CPU TYPES		: ALL
- *
- *    AUTHOR		: William Roske
- *
- *    CO-PILOT		: Dave Fenner
- *
- *    DATE STARTED	: 06/05/92
- *
- *    INITIAL RELEASE	: UNICOS 7.0
- *
- *    TEST CASES
- *
- * 	1.) sbrk(2) returns...(See Description)
- *
- *    INPUT SPECIFICATIONS
- * 	The standard options for system call tests are accepted.
- *	(See the parse_opts(3) man page).
- *
- *    OUTPUT SPECIFICATIONS
- *$
- *    DURATION
- * 	Terminates - with frequency and infinite modes.
- *
- *    SIGNALS
- * 	Uses SIGUSR1 to pause before test if option set.
- * 	(See the parse_opts(3) man page).
- *
- *    RESOURCES
- * 	None
- *
- *    ENVIRONMENTAL NEEDS
- *      No run-time environmental needs.
- *
- *    SPECIAL PROCEDURAL REQUIREMENTS
- * 	None
- *
- *    INTERCASE DEPENDENCIES
- * 	None
- *
- *    DETAILED DESCRIPTION
- *	This is a Phase I test for the sbrk(2) system call.  It is intended
- *	to provide a limited exposure of the system call, for now.  It
- *	should/will be extended when full functional tests are written for
- *	sbrk(2).
- *
- * 	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)
- *		Log the errno and Issue a FAIL message.
- *	  Otherwise, Issue a PASS message.
- *
- * 	Cleanup:
- * 	  Print errno log and/or timing stats if options given
- *
- *
- *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
+/*
+ * DESCRIPTION
+ *	1.) test sbrk(8192) should return successfully.
+ *	2.) test sbrk(-8192) should return successfully.
+ */
 
 #include <unistd.h>
 #include <errno.h>
@@ -118,146 +47,85 @@
 #include "test.h"
 #include "usctest.h"
 
-void setup();
-void cleanup();
-
 char *TCID = "sbrk01";
-int TST_TOTAL = 2;
-
-int Increment;			/* Amount to make change size by */
 
 #if !defined(UCLINUX)
 
+static struct test_case_t {
+	long increment;
+} test_cases[] = {
+	{8192},
+	{-8192},
+};
+
+static void setup(void);
+static void sbrk_verify(const struct test_case_t *);
+static void cleanup(void);
+
+int TST_TOTAL = ARRAY_SIZE(test_cases);
+
 int main(int ac, char **av)
 {
 	int lc;
 	char *msg;
-	void *tret;
+	int i;
 
-    /***************************************************************
-     * parse standard options
-     ***************************************************************/
-	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
+	msg = parse_opts(ac, av, NULL, NULL);
+	if (msg != NULL)
 		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
 
-	}
-
-    /***************************************************************
-     * perform global setup for test
-     ***************************************************************/
 	setup();
 
-    /***************************************************************
-     * check looping state if -c option given
-     ***************************************************************/
 	for (lc = 0; TEST_LOOPING(lc); lc++) {
 
 		tst_count = 0;
 
-		/*
-		 * TEST CASE:
-		 * Increase by 8192 bytes
-		 */
-		Increment = 8192;
-
-		/* Call sbrk(2) */
-		errno = 0;
-		tret = sbrk(Increment);	/* Remove -64 IRIX compiler warning */
-		TEST_ERRNO = errno;
-
-		/* check return code */
-		if (tret == (void *)-1) {
-			TEST_ERROR_LOG(TEST_ERRNO);
-			tst_resm(TFAIL,
-				 "sbrk - Increase by 8192 bytes failed, errno=%d : %s",
-				 TEST_ERRNO, strerror(TEST_ERRNO));
-		} else {
-	    /***************************************************************
-	     * only perform functional verification if flag set (-f not given)
-	     ***************************************************************/
-			if (STD_FUNCTIONAL_TEST) {
-				/* No Verification test, yet... */
-				tst_resm(TPASS,
-					 "sbrk - Increase by 8192 bytes returned %p",
-					 tret);
-			}
-		}
-
-		/*
-		 * TEST CASE:
-		 * Decrease to original size
-		 */
-		Increment = (Increment * -1);
-
-		/* Call sbrk(2) */
-		errno = 0;
-		tret = sbrk(Increment);
-		TEST_ERRNO = errno;
-
-		/* check return code */
-		if (tret == (void *)-1) {
-			TEST_ERROR_LOG(TEST_ERRNO);
-			tst_resm(TFAIL,
-				 "sbrk - Decrease to original size failed, errno=%d : %s",
-				 TEST_ERRNO, strerror(TEST_ERRNO));
-		} else {
-	    /***************************************************************
-	     * only perform functional verification if flag set (-f not given)
-	     ***************************************************************/
-			if (STD_FUNCTIONAL_TEST) {
-				/* No Verification test, yet... */
-				tst_resm(TPASS,
-					 "sbrk - Decrease to original size returned %p",
-					 tret);
-			}
-		}
-
+		for (i = 0; i < TST_TOTAL; i++)
+			sbrk_verify(&test_cases[i]);
 	}
 
-    /***************************************************************
-     * cleanup and exit
-     ***************************************************************/
 	cleanup();
 	tst_exit();
 
 }
 
-#else
-
-int main(void)
+static void setup(void)
 {
-	tst_resm(TINFO, "test is not available on uClinux");
-	tst_exit();
-}
+	tst_sig(NOFORK, DEF_HANDLER, cleanup);
 
-#endif /* if !defined(UCLINUX) */
+	TEST_PAUSE;
+}
 
-/***************************************************************
- * setup() - performs all ONE TIME setup for this test.
- ***************************************************************/
-void setup(void)
+static void sbrk_verify(const struct test_case_t *test)
 {
+	void *tret;
 
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
+	tret = sbrk(test->increment);
+	TEST_ERRNO = errno;
 
-	/* make a temp dir and cd to it */
-	tst_tmpdir();
+	if (tret == (void *)-1) {
+		tst_resm(TFAIL | TTERRNO,
+			 "sbrk - Increase by %ld bytes failed, errno=%d : %s",
+			 test->increment, TEST_ERRNO, strerror(TEST_ERRNO));
+	} else {
+		tst_resm(TPASS, "sbrk - Increase by %ld bytes returned %p",
+			 test->increment, tret);
+	}
 }
 
-/***************************************************************
- * cleanup() - performs all ONE TIME cleanup for this test at
- *		completion or premature exit.
- ***************************************************************/
-void cleanup(void)
+static void cleanup(void)
 {
-	/*
-	 * print timing stats if that option was specified.
-	 * print errno log if that option was specified.
-	 */
 	TEST_CLEANUP;
+}
 
-	tst_rmdir();
+#else
+
+int TST_TOTAL = 1;
 
+int main(void)
+{
+	tst_resm(TINFO, "test is not available on uClinux");
+	tst_exit();
 }
+
+#endif /* if !defined(UCLINUX) */
-- 
1.8.4.2




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[LTP] [PATCH 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Zeng Linggang]

Add ENOMEM errno test for sbrk(2)

Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
---
 runtest/ltplite                         |   1 +
 runtest/stress.part3                    |   1 +
 runtest/syscalls                        |   1 +
 testcases/kernel/syscalls/.gitignore    |   1 +
 testcases/kernel/syscalls/sbrk/sbrk02.c | 102 ++++++++++++++++++++++++++++++++
 5 files changed, 106 insertions(+)
 create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c

diff --git a/runtest/ltplite b/runtest/ltplite
index ebe171e..26b7753 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -653,6 +653,7 @@ rmdir04 rmdir04
 rmdir05 rmdir05
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/runtest/stress.part3 b/runtest/stress.part3
index b21e44b..021decf 100644
--- a/runtest/stress.part3
+++ b/runtest/stress.part3
@@ -563,6 +563,7 @@ rmdir04 rmdir04
 rmdir05 rmdir05
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/runtest/syscalls b/runtest/syscalls
index fb3e59f..3adeb8a 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -868,6 +868,7 @@ rt_sigqueueinfo01 rt_sigqueueinfo01
 rt_sigsuspend01 rt_sigsuspend01
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index d5c7bac..cd51000 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -706,6 +706,7 @@
 /rt_sigsuspend/rt_sigsuspend01
 /rt_sigtimedwait/rt_sigtimedwait01
 /sbrk/sbrk01
+/sbrk/sbrk02
 /sched_get_priority_max/sched_get_priority_max01
 /sched_get_priority_max/sched_get_priority_max02
 /sched_get_priority_min/sched_get_priority_min01
diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c b/testcases/kernel/syscalls/sbrk/sbrk02.c
new file mode 100644
index 0000000..97b41d9
--- /dev/null
+++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2014 Fujitsu Ltd.
+ * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * DESCRIPTION
+ *	Check sbrk() with error condition that should produce ENOMEM.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include "test.h"
+#include "usctest.h"
+
+char *TCID = "sbrk02";
+int TST_TOTAL = 1;
+
+static void setup(void);
+static void sbrk_verify(void);
+static void cleanup(void);
+static int exp_enos[] = { ENOMEM, 0 };
+
+static long increment;
+
+int main(int argc, char *argv[])
+{
+	int lc;
+	int i;
+	char *msg;
+
+	msg = parse_opts(argc, argv, NULL, NULL);
+	if (msg != NULL)
+		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+	setup();
+
+	for (lc = 0; TEST_LOOPING(lc); lc++) {
+		tst_count = 0;
+		for (i = 0; i < TST_TOTAL; i++)
+			sbrk_verify();
+	}
+
+	cleanup();
+	tst_exit();
+}
+
+static void setup(void)
+{
+	tst_sig(NOFORK, DEF_HANDLER, cleanup);
+
+	TEST_PAUSE;
+
+	for (increment = 0; errno == 0; increment++)
+		sbrk(increment);
+
+	errno = 0;
+
+	TEST_EXP_ENOS(exp_enos);
+}
+
+static void sbrk_verify(void)
+{
+	void *tret;
+
+	tret = sbrk(increment);
+	TEST_ERRNO = errno;
+
+	if (tret != (void *)-1) {
+		tst_resm(TFAIL,
+			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
+			 increment, tret, ENOMEM);
+		return;
+	}
+
+	TEST_ERROR_LOG(TEST_ERRNO);
+
+	if (TEST_ERRNO == ENOMEM) {
+		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
+			 increment);
+	} else {
+		tst_resm(TFAIL | TTERRNO,
+			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
+			 increment, ENOMEM, strerror(ENOMEM));
+	}
+}
+
+static void cleanup(void)
+{
+	TEST_CLEANUP;
+}
-- 
1.8.4.2




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Re: [LTP] [PATCH 1/2] sbrk/sbrk01.c: cleanup

[Jan Stancek]

----- Original Message -----
> From: "Zeng Linggang" <zenglg.jy@cn.fujitsu.com>
> To: "ltp-list" <ltp-list@lists.sourceforge.net>
> Sent: Tuesday, 22 April, 2014 11:40:13 AM
> Subject: [LTP] [PATCH 1/2] sbrk/sbrk01.c: cleanup
> 
> * Delete some useless commtents.
> * Move the test body from main() to sbrk_verify().
> * Remove tst_tmpdir().
> * Some cleanup.
> 
> Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> ---
>  testcases/kernel/syscalls/sbrk/sbrk01.c | 236
>  +++++++-------------------------
>  1 file changed, 52 insertions(+), 184 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/sbrk/sbrk01.c
> b/testcases/kernel/syscalls/sbrk/sbrk01.c
> index b2db42c..f2b09f4 100644
> --- a/testcases/kernel/syscalls/sbrk/sbrk01.c
> +++ b/testcases/kernel/syscalls/sbrk/sbrk01.c

...

>  
> -/***************************************************************
> - * setup() - performs all ONE TIME setup for this test.
> - ***************************************************************/
> -void setup(void)
> +static void sbrk_verify(const struct test_case_t *test)
>  {
> +	void *tret;
>  
> -	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> -
> -	TEST_PAUSE;
> +	tret = sbrk(test->increment);
> +	TEST_ERRNO = errno;
>  
> -	/* make a temp dir and cd to it */
> -	tst_tmpdir();
> +	if (tret == (void *)-1) {
> +		tst_resm(TFAIL | TTERRNO,
> +			 "sbrk - Increase by %ld bytes failed, errno=%d : %s",
> +			 test->increment, TEST_ERRNO, strerror(TEST_ERRNO));

This looks redundant. You are using TTERRNO and also printing TEST_ERRNO as decimal
and string again. You could just use TERRNO, errno shouldn't change between
call to sbrk() and if condition.

Regards,
Jan

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Re: [LTP] [PATCH 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Jan Stancek]

----- Original Message -----
> From: "Zeng Linggang" <zenglg.jy@cn.fujitsu.com>
> To: "ltp-list" <ltp-list@lists.sourceforge.net>
> Sent: Tuesday, 22 April, 2014 11:41:00 AM
> Subject: [LTP] [PATCH 2/2] sbrk/sbrk02.c: add ENOMEM errno test
> 
> Add ENOMEM errno test for sbrk(2)
> 
> Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> ---
>  runtest/ltplite                         |   1 +
>  runtest/stress.part3                    |   1 +
>  runtest/syscalls                        |   1 +
>  testcases/kernel/syscalls/.gitignore    |   1 +
>  testcases/kernel/syscalls/sbrk/sbrk02.c | 102
>  ++++++++++++++++++++++++++++++++
>  5 files changed, 106 insertions(+)
>  create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c
> 

Hi,

<snip>

> diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c
> b/testcases/kernel/syscalls/sbrk/sbrk02.c
> new file mode 100644
> index 0000000..97b41d9
> --- /dev/null
> +++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
> @@ -0,0 +1,102 @@
> +/*
> + * Copyright (c) 2014 Fujitsu Ltd.
> + * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of version 2 of the GNU General Public License as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it would be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +/*
> + * DESCRIPTION
> + *	Check sbrk() with error condition that should produce ENOMEM.
> + */
> +
> +#include <errno.h>
> +#include <unistd.h>
> +#include "test.h"
> +#include "usctest.h"
> +
> +char *TCID = "sbrk02";
> +int TST_TOTAL = 1;
> +
> +static void setup(void);
> +static void sbrk_verify(void);
> +static void cleanup(void);
> +static int exp_enos[] = { ENOMEM, 0 };
> +
> +static long increment;
> +
> +int main(int argc, char *argv[])
> +{
> +	int lc;
> +	int i;
> +	char *msg;
> +
> +	msg = parse_opts(argc, argv, NULL, NULL);
> +	if (msg != NULL)
> +		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
> +
> +	setup();
> +
> +	for (lc = 0; TEST_LOOPING(lc); lc++) {
> +		tst_count = 0;
> +		for (i = 0; i < TST_TOTAL; i++)
> +			sbrk_verify();
> +	}
> +
> +	cleanup();
> +	tst_exit();
> +}
> +
> +static void setup(void)
> +{
> +	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> +
> +	TEST_PAUSE;
> +
> +	for (increment = 0; errno == 0; increment++)

This looks like it takes couple hundred thousand of syscalls to hit
the limit. I'd suggest to set initial increment value somewhere
in range 1M-16M to reach it faster.

sbrk01 test is not suitable for UCLINUX, I suggest we add same ifdef check to sbrk02.

Regards,
Jan

> +		sbrk(increment);
> +
> +	errno = 0;
> +
> +	TEST_EXP_ENOS(exp_enos);
> +}
> +
> +static void sbrk_verify(void)
> +{
> +	void *tret;
> +
> +	tret = sbrk(increment);
> +	TEST_ERRNO = errno;
> +
> +	if (tret != (void *)-1) {
> +		tst_resm(TFAIL,
> +			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
> +			 increment, tret, ENOMEM);
> +		return;
> +	}
> +
> +	TEST_ERROR_LOG(TEST_ERRNO);
> +
> +	if (TEST_ERRNO == ENOMEM) {
> +		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
> +			 increment);
> +	} else {
> +		tst_resm(TFAIL | TTERRNO,
> +			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
> +			 increment, ENOMEM, strerror(ENOMEM));
> +	}
> +}
> +
> +static void cleanup(void)
> +{
> +	TEST_CLEANUP;
> +}
> --
> 1.8.4.2
> 
> 
> 
> 
> ------------------------------------------------------------------------------
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> 

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Re: [LTP] [PATCH 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Zeng Linggang]

On Tue, 2014-04-22 at 09:14 -0400, Jan Stancek wrote:
> 
> ----- Original Message -----
> > From: "Zeng Linggang" <zenglg.jy@cn.fujitsu.com>
> > To: "ltp-list" <ltp-list@lists.sourceforge.net>
> > Sent: Tuesday, 22 April, 2014 11:41:00 AM
> > Subject: [LTP] [PATCH 2/2] sbrk/sbrk02.c: add ENOMEM errno test
> > 
> > Add ENOMEM errno test for sbrk(2)
> > 
> > Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> > ---
> >  runtest/ltplite                         |   1 +
> >  runtest/stress.part3                    |   1 +
> >  runtest/syscalls                        |   1 +
> >  testcases/kernel/syscalls/.gitignore    |   1 +
> >  testcases/kernel/syscalls/sbrk/sbrk02.c | 102
> >  ++++++++++++++++++++++++++++++++
> >  5 files changed, 106 insertions(+)
> >  create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c
> > 
> 
> Hi,
> 
> <snip>
> 
> > diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c
> > b/testcases/kernel/syscalls/sbrk/sbrk02.c
> > new file mode 100644
> > index 0000000..97b41d9
> > --- /dev/null
> > +++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
> > @@ -0,0 +1,102 @@
> > +/*
> > + * Copyright (c) 2014 Fujitsu Ltd.
> > + * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> > + *
> > + * This program is free software; you can redistribute it and/or modify it
> > + * under the terms of version 2 of the GNU General Public License as
> > + * published by the Free Software Foundation.
> > + *
> > + * This program is distributed in the hope that it would be useful, but
> > + * WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> > + *
> > + * You should have received a copy of the GNU General Public License along
> > + * with this program; if not, write the Free Software Foundation, Inc.,
> > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> > + */
> > +/*
> > + * DESCRIPTION
> > + *	Check sbrk() with error condition that should produce ENOMEM.
> > + */
> > +
> > +#include <errno.h>
> > +#include <unistd.h>
> > +#include "test.h"
> > +#include "usctest.h"
> > +
> > +char *TCID = "sbrk02";
> > +int TST_TOTAL = 1;
> > +
> > +static void setup(void);
> > +static void sbrk_verify(void);
> > +static void cleanup(void);
> > +static int exp_enos[] = { ENOMEM, 0 };
> > +
> > +static long increment;
> > +
> > +int main(int argc, char *argv[])
> > +{
> > +	int lc;
> > +	int i;
> > +	char *msg;
> > +
> > +	msg = parse_opts(argc, argv, NULL, NULL);
> > +	if (msg != NULL)
> > +		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
> > +
> > +	setup();
> > +
> > +	for (lc = 0; TEST_LOOPING(lc); lc++) {
> > +		tst_count = 0;
> > +		for (i = 0; i < TST_TOTAL; i++)
> > +			sbrk_verify();
> > +	}
> > +
> > +	cleanup();
> > +	tst_exit();
> > +}
> > +
> > +static void setup(void)
> > +{
> > +	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> > +
> > +	TEST_PAUSE;
> > +
> > +	for (increment = 0; errno == 0; increment++)
> 
> This looks like it takes couple hundred thousand of syscalls to hit
> the limit. I'd suggest to set initial increment value somewhere
> in range 1M-16M to reach it faster.
> 

Yes, it is a good idea. I will set a bigger initial value.

> sbrk01 test is not suitable for UCLINUX, I suggest we add same ifdef check to sbrk02.
> 

OK. I will add ifdef.
And, thanks for your review.

Best regards,
Zeng

> Regards,
> Jan
> 
> > +		sbrk(increment);
> > +
> > +	errno = 0;
> > +
> > +	TEST_EXP_ENOS(exp_enos);
> > +}
> > +
> > +static void sbrk_verify(void)
> > +{
> > +	void *tret;
> > +
> > +	tret = sbrk(increment);
> > +	TEST_ERRNO = errno;
> > +
> > +	if (tret != (void *)-1) {
> > +		tst_resm(TFAIL,
> > +			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
> > +			 increment, tret, ENOMEM);
> > +		return;
> > +	}
> > +
> > +	TEST_ERROR_LOG(TEST_ERRNO);
> > +
> > +	if (TEST_ERRNO == ENOMEM) {
> > +		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
> > +			 increment);
> > +	} else {
> > +		tst_resm(TFAIL | TTERRNO,
> > +			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
> > +			 increment, ENOMEM, strerror(ENOMEM));
> > +	}
> > +}
> > +
> > +static void cleanup(void)
> > +{
> > +	TEST_CLEANUP;
> > +}
> > --
> > 1.8.4.2
> > 
> > 
> > 
> > 
> > ------------------------------------------------------------------------------
> > Start Your Social Network Today - Download eXo Platform
> > Build your Enterprise Intranet with eXo Platform Software
> > Java Based Open Source Intranet - Social, Extensible, Cloud Ready
> > Get Started Now And Turn Your Intranet Into A Collaboration Platform
> > http://p.sf.net/sfu/ExoPlatform
> > _______________________________________________
> > Ltp-list mailing list
> > Ltp-list@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/ltp-list
> > 



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[LTP] [PATCH v2 1/2] sbrk/sbrk01.c: cleanup

[Zeng Linggang]

* Delete some useless commtents.
* Move the test body from main() to sbrk_verify().
* Remove tst_tmpdir().
* Some cleanup.

Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
---
 testcases/kernel/syscalls/sbrk/sbrk01.c | 235 +++++++-------------------------
 1 file changed, 51 insertions(+), 184 deletions(-)

diff --git a/testcases/kernel/syscalls/sbrk/sbrk01.c b/testcases/kernel/syscalls/sbrk/sbrk01.c
index b2db42c..0840467 100644
--- a/testcases/kernel/syscalls/sbrk/sbrk01.c
+++ b/testcases/kernel/syscalls/sbrk/sbrk01.c
@@ -1,5 +1,7 @@
 /*
  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *  AUTHOR		: William Roske
+ *  CO-PILOT		: Dave Fenner
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -30,84 +32,11 @@
  * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
  *
  */
-/* $Id: sbrk01.c,v 1.8 2009/06/09 16:01:21 subrata_modak Exp $ */
-/**********************************************************
- *
- *    OS Test - Silicon Graphics, Inc.
- *
- *    TEST IDENTIFIER	: sbrk01
- *
- *    EXECUTED BY	: anyone
- *
- *    TEST TITLE	: Basic test for sbrk(2)
- *
- *    PARENT DOCUMENT	: usctpl01
- *
- *    TEST CASE TOTAL	: 2
- *
- *    WALL CLOCK TIME	: 1
- *
- *    CPU TYPES		: ALL
- *
- *    AUTHOR		: William Roske
- *
- *    CO-PILOT		: Dave Fenner
- *
- *    DATE STARTED	: 06/05/92
- *
- *    INITIAL RELEASE	: UNICOS 7.0
- *
- *    TEST CASES
- *
- * 	1.) sbrk(2) returns...(See Description)
- *
- *    INPUT SPECIFICATIONS
- * 	The standard options for system call tests are accepted.
- *	(See the parse_opts(3) man page).
- *
- *    OUTPUT SPECIFICATIONS
- *$
- *    DURATION
- * 	Terminates - with frequency and infinite modes.
- *
- *    SIGNALS
- * 	Uses SIGUSR1 to pause before test if option set.
- * 	(See the parse_opts(3) man page).
- *
- *    RESOURCES
- * 	None
- *
- *    ENVIRONMENTAL NEEDS
- *      No run-time environmental needs.
- *
- *    SPECIAL PROCEDURAL REQUIREMENTS
- * 	None
- *
- *    INTERCASE DEPENDENCIES
- * 	None
- *
- *    DETAILED DESCRIPTION
- *	This is a Phase I test for the sbrk(2) system call.  It is intended
- *	to provide a limited exposure of the system call, for now.  It
- *	should/will be extended when full functional tests are written for
- *	sbrk(2).
- *
- * 	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)
- *		Log the errno and Issue a FAIL message.
- *	  Otherwise, Issue a PASS message.
- *
- * 	Cleanup:
- * 	  Print errno log and/or timing stats if options given
- *
- *
- *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
+/*
+ * DESCRIPTION
+ *	1.) test sbrk(8192) should return successfully.
+ *	2.) test sbrk(-8192) should return successfully.
+ */
 
 #include <unistd.h>
 #include <errno.h>
@@ -118,146 +47,84 @@
 #include "test.h"
 #include "usctest.h"
 
-void setup();
-void cleanup();
-
 char *TCID = "sbrk01";
-int TST_TOTAL = 2;
-
-int Increment;			/* Amount to make change size by */
 
 #if !defined(UCLINUX)
 
+static struct test_case_t {
+	long increment;
+} test_cases[] = {
+	{8192},
+	{-8192},
+};
+
+static void setup(void);
+static void sbrk_verify(const struct test_case_t *);
+static void cleanup(void);
+
+int TST_TOTAL = ARRAY_SIZE(test_cases);
+
 int main(int ac, char **av)
 {
 	int lc;
 	char *msg;
-	void *tret;
+	int i;
 
-    /***************************************************************
-     * parse standard options
-     ***************************************************************/
-	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) {
+	msg = parse_opts(ac, av, NULL, NULL);
+	if (msg != NULL)
 		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
 
-	}
-
-    /***************************************************************
-     * perform global setup for test
-     ***************************************************************/
 	setup();
 
-    /***************************************************************
-     * check looping state if -c option given
-     ***************************************************************/
 	for (lc = 0; TEST_LOOPING(lc); lc++) {
 
 		tst_count = 0;
 
-		/*
-		 * TEST CASE:
-		 * Increase by 8192 bytes
-		 */
-		Increment = 8192;
-
-		/* Call sbrk(2) */
-		errno = 0;
-		tret = sbrk(Increment);	/* Remove -64 IRIX compiler warning */
-		TEST_ERRNO = errno;
-
-		/* check return code */
-		if (tret == (void *)-1) {
-			TEST_ERROR_LOG(TEST_ERRNO);
-			tst_resm(TFAIL,
-				 "sbrk - Increase by 8192 bytes failed, errno=%d : %s",
-				 TEST_ERRNO, strerror(TEST_ERRNO));
-		} else {
-	    /***************************************************************
-	     * only perform functional verification if flag set (-f not given)
-	     ***************************************************************/
-			if (STD_FUNCTIONAL_TEST) {
-				/* No Verification test, yet... */
-				tst_resm(TPASS,
-					 "sbrk - Increase by 8192 bytes returned %p",
-					 tret);
-			}
-		}
-
-		/*
-		 * TEST CASE:
-		 * Decrease to original size
-		 */
-		Increment = (Increment * -1);
-
-		/* Call sbrk(2) */
-		errno = 0;
-		tret = sbrk(Increment);
-		TEST_ERRNO = errno;
-
-		/* check return code */
-		if (tret == (void *)-1) {
-			TEST_ERROR_LOG(TEST_ERRNO);
-			tst_resm(TFAIL,
-				 "sbrk - Decrease to original size failed, errno=%d : %s",
-				 TEST_ERRNO, strerror(TEST_ERRNO));
-		} else {
-	    /***************************************************************
-	     * only perform functional verification if flag set (-f not given)
-	     ***************************************************************/
-			if (STD_FUNCTIONAL_TEST) {
-				/* No Verification test, yet... */
-				tst_resm(TPASS,
-					 "sbrk - Decrease to original size returned %p",
-					 tret);
-			}
-		}
-
+		for (i = 0; i < TST_TOTAL; i++)
+			sbrk_verify(&test_cases[i]);
 	}
 
-    /***************************************************************
-     * cleanup and exit
-     ***************************************************************/
 	cleanup();
 	tst_exit();
 
 }
 
-#else
-
-int main(void)
+static void setup(void)
 {
-	tst_resm(TINFO, "test is not available on uClinux");
-	tst_exit();
-}
+	tst_sig(NOFORK, DEF_HANDLER, cleanup);
 
-#endif /* if !defined(UCLINUX) */
+	TEST_PAUSE;
+}
 
-/***************************************************************
- * setup() - performs all ONE TIME setup for this test.
- ***************************************************************/
-void setup(void)
+static void sbrk_verify(const struct test_case_t *test)
 {
+	void *tret;
 
-	tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
-	TEST_PAUSE;
+	tret = sbrk(test->increment);
+	TEST_ERRNO = errno;
 
-	/* make a temp dir and cd to it */
-	tst_tmpdir();
+	if (tret == (void *)-1) {
+		tst_resm(TFAIL | TTERRNO, "sbrk - Increase by %ld bytes failed",
+			 test->increment);
+	} else {
+		tst_resm(TPASS, "sbrk - Increase by %ld bytes returned %p",
+			 test->increment, tret);
+	}
 }
 
-/***************************************************************
- * cleanup() - performs all ONE TIME cleanup for this test at
- *		completion or premature exit.
- ***************************************************************/
-void cleanup(void)
+static void cleanup(void)
 {
-	/*
-	 * print timing stats if that option was specified.
-	 * print errno log if that option was specified.
-	 */
 	TEST_CLEANUP;
+}
 
-	tst_rmdir();
+#else
+
+int TST_TOTAL = 1;
 
+int main(void)
+{
+	tst_resm(TINFO, "test is not available on uClinux");
+	tst_exit();
 }
+
+#endif /* if !defined(UCLINUX) */
-- 
1.8.4.2




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[LTP] [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Zeng Linggang]

Add ENOMEM errno test for sbrk(2)

Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
---
 runtest/ltplite                         |   1 +
 runtest/stress.part3                    |   1 +
 runtest/syscalls                        |   1 +
 testcases/kernel/syscalls/.gitignore    |   1 +
 testcases/kernel/syscalls/sbrk/sbrk02.c | 114 ++++++++++++++++++++++++++++++++
 5 files changed, 118 insertions(+)
 create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c

diff --git a/runtest/ltplite b/runtest/ltplite
index ebe171e..26b7753 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -653,6 +653,7 @@ rmdir04 rmdir04
 rmdir05 rmdir05
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/runtest/stress.part3 b/runtest/stress.part3
index b21e44b..021decf 100644
--- a/runtest/stress.part3
+++ b/runtest/stress.part3
@@ -563,6 +563,7 @@ rmdir04 rmdir04
 rmdir05 rmdir05
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/runtest/syscalls b/runtest/syscalls
index fb3e59f..3adeb8a 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -868,6 +868,7 @@ rt_sigqueueinfo01 rt_sigqueueinfo01
 rt_sigsuspend01 rt_sigsuspend01
 
 sbrk01 sbrk01
+sbrk02 sbrk02
 
 sched_get_priority_max01 sched_get_priority_max01
 sched_get_priority_max02 sched_get_priority_max02
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index d5c7bac..cd51000 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -706,6 +706,7 @@
 /rt_sigsuspend/rt_sigsuspend01
 /rt_sigtimedwait/rt_sigtimedwait01
 /sbrk/sbrk01
+/sbrk/sbrk02
 /sched_get_priority_max/sched_get_priority_max01
 /sched_get_priority_max/sched_get_priority_max02
 /sched_get_priority_min/sched_get_priority_min01
diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c b/testcases/kernel/syscalls/sbrk/sbrk02.c
new file mode 100644
index 0000000..8961fa9
--- /dev/null
+++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2014 Fujitsu Ltd.
+ * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+/*
+ * DESCRIPTION
+ *	Check sbrk() with error condition that should produce ENOMEM.
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include "test.h"
+#include "usctest.h"
+
+char *TCID = "sbrk02";
+int TST_TOTAL = 1;
+
+#if !defined(UCLINUX)
+
+static void setup(void);
+static void sbrk_verify(void);
+static void cleanup(void);
+static int exp_enos[] = { ENOMEM, 0 };
+
+static long increment;
+
+int main(int argc, char *argv[])
+{
+	int lc;
+	int i;
+	char *msg;
+
+	msg = parse_opts(argc, argv, NULL, NULL);
+	if (msg != NULL)
+		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+	setup();
+
+	for (lc = 0; TEST_LOOPING(lc); lc++) {
+		tst_count = 0;
+		for (i = 0; i < TST_TOTAL; i++)
+			sbrk_verify();
+	}
+
+	cleanup();
+	tst_exit();
+}
+
+static void setup(void)
+{
+	tst_sig(NOFORK, DEF_HANDLER, cleanup);
+
+	TEST_PAUSE;
+
+	for (increment = 16*1024*1024; errno == 0; increment++)
+		sbrk(increment);
+
+	errno = 0;
+
+	TEST_EXP_ENOS(exp_enos);
+}
+
+static void sbrk_verify(void)
+{
+	void *tret;
+
+	tret = sbrk(increment);
+	TEST_ERRNO = errno;
+
+	if (tret != (void *)-1) {
+		tst_resm(TFAIL,
+			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
+			 increment, tret, ENOMEM);
+		return;
+	}
+
+	TEST_ERROR_LOG(TEST_ERRNO);
+
+	if (TEST_ERRNO == ENOMEM) {
+		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
+			 increment);
+	} else {
+		tst_resm(TFAIL | TTERRNO,
+			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
+			 increment, ENOMEM, strerror(ENOMEM));
+	}
+}
+
+static void cleanup(void)
+{
+	TEST_CLEANUP;
+}
+
+#else
+
+int main(void)
+{
+	tst_resm(TINFO, "test is not available on uClinux");
+	tst_exit();
+}
+
+#endif /* if !defined(UCLINUX) */
-- 
1.8.4.2




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Re: [LTP] [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Jan Stancek]

----- Original Message -----
> From: "Zeng Linggang" <zenglg.jy@cn.fujitsu.com>
> To: "Jan Stancek" <jstancek@redhat.com>
> Cc: "ltp-list" <ltp-list@lists.sourceforge.net>
> Sent: Wednesday, 23 April, 2014 5:52:56 AM
> Subject: [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test
> 
> Add ENOMEM errno test for sbrk(2)
> 
> Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> ---
>  runtest/ltplite                         |   1 +
>  runtest/stress.part3                    |   1 +
>  runtest/syscalls                        |   1 +
>  testcases/kernel/syscalls/.gitignore    |   1 +
>  testcases/kernel/syscalls/sbrk/sbrk02.c | 114
>  ++++++++++++++++++++++++++++++++

Hi,

looks good to me. I saw sbrk02 taking up to couple seconds
to complete on some systems, but that seems acceptable.
If anyone objects, we could change setup() to increment
even more rapidly.

Regards,
Jan

>  5 files changed, 118 insertions(+)
>  create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c
> 
> diff --git a/runtest/ltplite b/runtest/ltplite
> index ebe171e..26b7753 100644
> --- a/runtest/ltplite
> +++ b/runtest/ltplite
> @@ -653,6 +653,7 @@ rmdir04 rmdir04
>  rmdir05 rmdir05
>  
>  sbrk01 sbrk01
> +sbrk02 sbrk02
>  
>  sched_get_priority_max01 sched_get_priority_max01
>  sched_get_priority_max02 sched_get_priority_max02
> diff --git a/runtest/stress.part3 b/runtest/stress.part3
> index b21e44b..021decf 100644
> --- a/runtest/stress.part3
> +++ b/runtest/stress.part3
> @@ -563,6 +563,7 @@ rmdir04 rmdir04
>  rmdir05 rmdir05
>  
>  sbrk01 sbrk01
> +sbrk02 sbrk02
>  
>  sched_get_priority_max01 sched_get_priority_max01
>  sched_get_priority_max02 sched_get_priority_max02
> diff --git a/runtest/syscalls b/runtest/syscalls
> index fb3e59f..3adeb8a 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -868,6 +868,7 @@ rt_sigqueueinfo01 rt_sigqueueinfo01
>  rt_sigsuspend01 rt_sigsuspend01
>  
>  sbrk01 sbrk01
> +sbrk02 sbrk02
>  
>  sched_get_priority_max01 sched_get_priority_max01
>  sched_get_priority_max02 sched_get_priority_max02
> diff --git a/testcases/kernel/syscalls/.gitignore
> b/testcases/kernel/syscalls/.gitignore
> index d5c7bac..cd51000 100644
> --- a/testcases/kernel/syscalls/.gitignore
> +++ b/testcases/kernel/syscalls/.gitignore
> @@ -706,6 +706,7 @@
>  /rt_sigsuspend/rt_sigsuspend01
>  /rt_sigtimedwait/rt_sigtimedwait01
>  /sbrk/sbrk01
> +/sbrk/sbrk02
>  /sched_get_priority_max/sched_get_priority_max01
>  /sched_get_priority_max/sched_get_priority_max02
>  /sched_get_priority_min/sched_get_priority_min01
> diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c
> b/testcases/kernel/syscalls/sbrk/sbrk02.c
> new file mode 100644
> index 0000000..8961fa9
> --- /dev/null
> +++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
> @@ -0,0 +1,114 @@
> +/*
> + * Copyright (c) 2014 Fujitsu Ltd.
> + * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of version 2 of the GNU General Public License as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it would be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +/*
> + * DESCRIPTION
> + *	Check sbrk() with error condition that should produce ENOMEM.
> + */
> +
> +#include <errno.h>
> +#include <unistd.h>
> +#include "test.h"
> +#include "usctest.h"
> +
> +char *TCID = "sbrk02";
> +int TST_TOTAL = 1;
> +
> +#if !defined(UCLINUX)
> +
> +static void setup(void);
> +static void sbrk_verify(void);
> +static void cleanup(void);
> +static int exp_enos[] = { ENOMEM, 0 };
> +
> +static long increment;
> +
> +int main(int argc, char *argv[])
> +{
> +	int lc;
> +	int i;
> +	char *msg;
> +
> +	msg = parse_opts(argc, argv, NULL, NULL);
> +	if (msg != NULL)
> +		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
> +
> +	setup();
> +
> +	for (lc = 0; TEST_LOOPING(lc); lc++) {
> +		tst_count = 0;
> +		for (i = 0; i < TST_TOTAL; i++)
> +			sbrk_verify();
> +	}
> +
> +	cleanup();
> +	tst_exit();
> +}
> +
> +static void setup(void)
> +{
> +	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> +
> +	TEST_PAUSE;
> +
> +	for (increment = 16*1024*1024; errno == 0; increment++)
> +		sbrk(increment);
> +
> +	errno = 0;
> +
> +	TEST_EXP_ENOS(exp_enos);
> +}
> +
> +static void sbrk_verify(void)
> +{
> +	void *tret;
> +
> +	tret = sbrk(increment);
> +	TEST_ERRNO = errno;
> +
> +	if (tret != (void *)-1) {
> +		tst_resm(TFAIL,
> +			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
> +			 increment, tret, ENOMEM);
> +		return;
> +	}
> +
> +	TEST_ERROR_LOG(TEST_ERRNO);
> +
> +	if (TEST_ERRNO == ENOMEM) {
> +		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
> +			 increment);
> +	} else {
> +		tst_resm(TFAIL | TTERRNO,
> +			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
> +			 increment, ENOMEM, strerror(ENOMEM));
> +	}
> +}
> +
> +static void cleanup(void)
> +{
> +	TEST_CLEANUP;
> +}
> +
> +#else
> +
> +int main(void)
> +{
> +	tst_resm(TINFO, "test is not available on uClinux");
> +	tst_exit();
> +}
> +
> +#endif /* if !defined(UCLINUX) */
> --
> 1.8.4.2
> 
> 
> 
> 

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Re: [LTP] [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[Zeng Linggang]

On Wed, 2014-04-23 at 07:29 -0400, Jan Stancek wrote:
> 
> ----- Original Message -----
> > From: "Zeng Linggang" <zenglg.jy@cn.fujitsu.com>
> > To: "Jan Stancek" <jstancek@redhat.com>
> > Cc: "ltp-list" <ltp-list@lists.sourceforge.net>
> > Sent: Wednesday, 23 April, 2014 5:52:56 AM
> > Subject: [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test
> > 
> > Add ENOMEM errno test for sbrk(2)
> > 
> > Signed-off-by: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> > ---
> >  runtest/ltplite                         |   1 +
> >  runtest/stress.part3                    |   1 +
> >  runtest/syscalls                        |   1 +
> >  testcases/kernel/syscalls/.gitignore    |   1 +
> >  testcases/kernel/syscalls/sbrk/sbrk02.c | 114
> >  ++++++++++++++++++++++++++++++++
> 
> Hi,
> 
> looks good to me. I saw sbrk02 taking up to couple seconds
> to complete on some systems, but that seems acceptable.
> If anyone objects, we could change setup() to increment
> even more rapidly.
> 

Sorry for the delay.
I am OK for the changing if anyone objects.
And thank you for your review again.

Best regards,
Zeng

> Regards,
> Jan
> 
> >  5 files changed, 118 insertions(+)
> >  create mode 100644 testcases/kernel/syscalls/sbrk/sbrk02.c
> > 
> > diff --git a/runtest/ltplite b/runtest/ltplite
> > index ebe171e..26b7753 100644
> > --- a/runtest/ltplite
> > +++ b/runtest/ltplite
> > @@ -653,6 +653,7 @@ rmdir04 rmdir04
> >  rmdir05 rmdir05
> >  
> >  sbrk01 sbrk01
> > +sbrk02 sbrk02
> >  
> >  sched_get_priority_max01 sched_get_priority_max01
> >  sched_get_priority_max02 sched_get_priority_max02
> > diff --git a/runtest/stress.part3 b/runtest/stress.part3
> > index b21e44b..021decf 100644
> > --- a/runtest/stress.part3
> > +++ b/runtest/stress.part3
> > @@ -563,6 +563,7 @@ rmdir04 rmdir04
> >  rmdir05 rmdir05
> >  
> >  sbrk01 sbrk01
> > +sbrk02 sbrk02
> >  
> >  sched_get_priority_max01 sched_get_priority_max01
> >  sched_get_priority_max02 sched_get_priority_max02
> > diff --git a/runtest/syscalls b/runtest/syscalls
> > index fb3e59f..3adeb8a 100644
> > --- a/runtest/syscalls
> > +++ b/runtest/syscalls
> > @@ -868,6 +868,7 @@ rt_sigqueueinfo01 rt_sigqueueinfo01
> >  rt_sigsuspend01 rt_sigsuspend01
> >  
> >  sbrk01 sbrk01
> > +sbrk02 sbrk02
> >  
> >  sched_get_priority_max01 sched_get_priority_max01
> >  sched_get_priority_max02 sched_get_priority_max02
> > diff --git a/testcases/kernel/syscalls/.gitignore
> > b/testcases/kernel/syscalls/.gitignore
> > index d5c7bac..cd51000 100644
> > --- a/testcases/kernel/syscalls/.gitignore
> > +++ b/testcases/kernel/syscalls/.gitignore
> > @@ -706,6 +706,7 @@
> >  /rt_sigsuspend/rt_sigsuspend01
> >  /rt_sigtimedwait/rt_sigtimedwait01
> >  /sbrk/sbrk01
> > +/sbrk/sbrk02
> >  /sched_get_priority_max/sched_get_priority_max01
> >  /sched_get_priority_max/sched_get_priority_max02
> >  /sched_get_priority_min/sched_get_priority_min01
> > diff --git a/testcases/kernel/syscalls/sbrk/sbrk02.c
> > b/testcases/kernel/syscalls/sbrk/sbrk02.c
> > new file mode 100644
> > index 0000000..8961fa9
> > --- /dev/null
> > +++ b/testcases/kernel/syscalls/sbrk/sbrk02.c
> > @@ -0,0 +1,114 @@
> > +/*
> > + * Copyright (c) 2014 Fujitsu Ltd.
> > + * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
> > + *
> > + * This program is free software; you can redistribute it and/or modify it
> > + * under the terms of version 2 of the GNU General Public License as
> > + * published by the Free Software Foundation.
> > + *
> > + * This program is distributed in the hope that it would be useful, but
> > + * WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> > + *
> > + * You should have received a copy of the GNU General Public License along
> > + * with this program; if not, write the Free Software Foundation, Inc.,
> > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> > + */
> > +/*
> > + * DESCRIPTION
> > + *	Check sbrk() with error condition that should produce ENOMEM.
> > + */
> > +
> > +#include <errno.h>
> > +#include <unistd.h>
> > +#include "test.h"
> > +#include "usctest.h"
> > +
> > +char *TCID = "sbrk02";
> > +int TST_TOTAL = 1;
> > +
> > +#if !defined(UCLINUX)
> > +
> > +static void setup(void);
> > +static void sbrk_verify(void);
> > +static void cleanup(void);
> > +static int exp_enos[] = { ENOMEM, 0 };
> > +
> > +static long increment;
> > +
> > +int main(int argc, char *argv[])
> > +{
> > +	int lc;
> > +	int i;
> > +	char *msg;
> > +
> > +	msg = parse_opts(argc, argv, NULL, NULL);
> > +	if (msg != NULL)
> > +		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
> > +
> > +	setup();
> > +
> > +	for (lc = 0; TEST_LOOPING(lc); lc++) {
> > +		tst_count = 0;
> > +		for (i = 0; i < TST_TOTAL; i++)
> > +			sbrk_verify();
> > +	}
> > +
> > +	cleanup();
> > +	tst_exit();
> > +}
> > +
> > +static void setup(void)
> > +{
> > +	tst_sig(NOFORK, DEF_HANDLER, cleanup);
> > +
> > +	TEST_PAUSE;
> > +
> > +	for (increment = 16*1024*1024; errno == 0; increment++)
> > +		sbrk(increment);
> > +
> > +	errno = 0;
> > +
> > +	TEST_EXP_ENOS(exp_enos);
> > +}
> > +
> > +static void sbrk_verify(void)
> > +{
> > +	void *tret;
> > +
> > +	tret = sbrk(increment);
> > +	TEST_ERRNO = errno;
> > +
> > +	if (tret != (void *)-1) {
> > +		tst_resm(TFAIL,
> > +			 "sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
> > +			 increment, tret, ENOMEM);
> > +		return;
> > +	}
> > +
> > +	TEST_ERROR_LOG(TEST_ERRNO);
> > +
> > +	if (TEST_ERRNO == ENOMEM) {
> > +		tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
> > +			 increment);
> > +	} else {
> > +		tst_resm(TFAIL | TTERRNO,
> > +			 "sbrk(%ld) failed unexpectedly; expected: %d - %s",
> > +			 increment, ENOMEM, strerror(ENOMEM));
> > +	}
> > +}
> > +
> > +static void cleanup(void)
> > +{
> > +	TEST_CLEANUP;
> > +}
> > +
> > +#else
> > +
> > +int main(void)
> > +{
> > +	tst_resm(TINFO, "test is not available on uClinux");
> > +	tst_exit();
> > +}
> > +
> > +#endif /* if !defined(UCLINUX) */
> > --
> > 1.8.4.2
> > 
> > 
> > 
> > 



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Re: [LTP] [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[chrubis]

Hi!
> looks good to me. I saw sbrk02 taking up to couple seconds
> to complete on some systems, but that seems acceptable.
> If anyone objects, we could change setup() to increment
> even more rapidly.

Generally the testrun should be as fast as possible (think of a farm of
kernel builders that gets latest kernel git, compiles it and runs
tests). So ideally each testcase should not run longer than is needed.

-- 
Cyril Hrubis
chrubis@suse.cz

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Re: [LTP] [PATCH v2 2/2] sbrk/sbrk02.c: add ENOMEM errno test

[chrubis]

Hi!
> +#if !defined(UCLINUX)

If none of the sbrk tests runs on uClinux the UCLINUX ifdefs should be
removed and the whole directory should be skipped on build and install.
(by adding into UCLINUX FILTER_OUT_DIRS in
testacses/kernel/syscalls/Makefile)

Otherwise the test looks fine.

Jan can you please tune the increments, remove the ifdefs and push into
git?

-- 
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Re: [LTP] [PATCH v2 1/2] sbrk/sbrk01.c: cleanup

[chrubis]

Hi!
> * Delete some useless commtents.
> * Move the test body from main() to sbrk_verify().
> * Remove tst_tmpdir().
> * Some cleanup.

Pushed after I've removed the UCLINUX #ifdefs and added sbrk directory
to UCLINUX FILTER_OUT_DIRS into ../Makefile

-- 
Cyril Hrubis
chrubis@suse.cz

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