* [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function
@ 2019-03-06 15:21 Cyril Hrubis
2019-03-06 15:21 ` [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants Cyril Hrubis
2019-03-06 15:23 ` [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
0 siblings, 2 replies; 5+ messages in thread
From: Cyril Hrubis @ 2019-03-06 15:21 UTC (permalink / raw)
To: ltp
From: Cyril Hrubis <chrubis@suse.cz>
The test multiplex function is intended for running the test function in
a loop for a different settings. The indended purpose is to run tests
for both libc wrapper and raw syscall as well as for different syscall
variants.
The commit itself adds a test_multiplex() function into the tst_test
structure, if set this function is called in a loop before each test
iteration and is responsible for changing the test variant into next
one. The iterations continue until the function returns zero.
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
CC: Mark Salyzyn <salyzyn@android.com>
CC: Steve Muckle <smuckle@google.com>
CC: Jan Stancek <jstancek@redhat.com>
---
include/tst_test.h | 14 ++++++++++++++
lib/tst_test.c | 11 +++++++++--
2 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/include/tst_test.h b/include/tst_test.h
index da41f776d..b747b24d5 100644
--- a/include/tst_test.h
+++ b/include/tst_test.h
@@ -146,6 +146,20 @@ struct tst_test {
*/
int all_filesystems:1;
+ /*
+ * If set this function is used to mutiplex between different test
+ * variants.
+ *
+ * Multiplexers are the way how to run the same test for different
+ * settings. The intended use is to test different syscall
+ * wrappers/variants but the API is generic and does not limit the
+ * usage in any way.
+ *
+ * Each time the function is called it switches to next test variant,
+ * returns zero if all variants has been iterated over.
+ */
+ int (*test_multiplex)(void);
+
/* Minimal device size in megabytes */
unsigned int dev_min_size;
diff --git a/lib/tst_test.c b/lib/tst_test.c
index 7dd890b8d..6b033c879 100644
--- a/lib/tst_test.c
+++ b/lib/tst_test.c
@@ -1009,8 +1009,15 @@ static void testrun(void)
if (!cont)
break;
- run_tests();
- heartbeat();
+ if (tst_test->test_multiplex) {
+ while (tst_test->test_multiplex()) {
+ run_tests();
+ heartbeat();
+ }
+ } else {
+ run_tests();
+ heartbeat();
+ }
}
do_test_cleanup();
--
2.19.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants
2019-03-06 15:21 [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
@ 2019-03-06 15:21 ` Cyril Hrubis
2019-03-06 15:23 ` [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
1 sibling, 0 replies; 5+ messages in thread
From: Cyril Hrubis @ 2019-03-06 15:21 UTC (permalink / raw)
To: ltp
From: Cyril Hrubis <chrubis@suse.cz>
This commit makes use of the newly added test_multiplex() function to
switch between different syscall variants/wrappers at runtime.
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
CC: Mark Salyzyn <salyzyn@android.com>
CC: Steve Muckle <smuckle@google.com>
CC: Jan Stancek <jstancek@redhat.com>
---
testcases/kernel/syscalls/select/select04.c | 5 +-
testcases/kernel/syscalls/select/select_mpx.h | 79 +++++++++++++++++++
2 files changed, 83 insertions(+), 1 deletion(-)
create mode 100644 testcases/kernel/syscalls/select/select_mpx.h
diff --git a/testcases/kernel/syscalls/select/select04.c b/testcases/kernel/syscalls/select/select04.c
index 86bdffcdf..300992233 100644
--- a/testcases/kernel/syscalls/select/select04.c
+++ b/testcases/kernel/syscalls/select/select04.c
@@ -27,6 +27,8 @@
#include "tst_timer_test.h"
+#include "select_mpx.h"
+
static int fds[2];
static int sample_fn(int clk_id, long long usec)
@@ -39,7 +41,7 @@ static int sample_fn(int clk_id, long long usec)
FD_SET(fds[0], &sfds);
tst_timer_start(clk_id);
- TEST(select(1, &sfds, NULL, NULL, &timeout));
+ TEST(do_select(1, &sfds, NULL, NULL, &timeout));
tst_timer_stop();
tst_timer_sample();
@@ -69,5 +71,6 @@ static struct tst_test test = {
.scall = "select()",
.sample = sample_fn,
.setup = setup,
+ .test_multiplex = select_mpx,
.cleanup = cleanup,
};
diff --git a/testcases/kernel/syscalls/select/select_mpx.h b/testcases/kernel/syscalls/select/select_mpx.h
new file mode 100644
index 000000000..39c4e6517
--- /dev/null
+++ b/testcases/kernel/syscalls/select/select_mpx.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 Cyril Hrubis <chrubis@suse.cz>
+ */
+
+#ifndef SELECT_MPX
+#define SELECT_MPX
+
+#include "lapi/syscalls.h"
+
+static int sys_mpx = -1;
+
+struct compat_sel_arg_struct {
+ long _n;
+ long _inp;
+ long _outp;
+ long _exp;
+ long _tvp;
+};
+
+static int do_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
+{
+ switch (sys_mpx) {
+ case 0:
+ return select(nfds, readfds, writefds, exceptfds, timeout);
+ break;
+ case 1:
+ return tst_syscall(__NR__newselect, nfds, readfds, writefds, exceptfds, timeout);
+ break;
+ case 2: {
+ struct compat_sel_arg_struct arg = {
+ ._n = (long)nfds,
+ ._inp = (long)readfds,
+ ._outp = (long)writefds,
+ ._exp = (long)exceptfds,
+ ._tvp = (long)timeout,
+ };
+
+ return tst_syscall(__NR_select, &arg);
+ }
+ case 3: {
+ int ret;
+ struct timespec ts = {
+ .tv_sec = timeout->tv_sec,
+ .tv_nsec = timeout->tv_usec * 1000,
+ };
+ ret = tst_syscall(__NR_pselect6, nfds, readfds, writefds, exceptfds, &ts, NULL);
+ timeout->tv_sec = ts.tv_sec;
+ timeout->tv_usec = ts.tv_nsec / 1000;
+ return ret;
+ }
+ }
+
+ return -1;
+}
+
+static int select_mpx(void)
+{
+ switch (++sys_mpx) {
+ case 0:
+ tst_res(TINFO, "Testing glibc select()");
+ break;
+ case 1:
+ tst_res(TINFO, "Testing SYS__newselect syscall");
+ break;
+ case 2:
+ tst_res(TINFO, "Testing SYS_select syscall");
+ break;
+ case 3:
+ tst_res(TINFO, "Testing SYS_pselect6 syscall");
+ break;
+ case 4:
+ sys_mpx = -1;
+ return 0;
+ }
+
+ return 1;
+}
+
+#endif /* SELECT_MPX */
--
2.19.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function
2019-03-06 15:21 [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
2019-03-06 15:21 ` [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants Cyril Hrubis
@ 2019-03-06 15:23 ` Cyril Hrubis
1 sibling, 0 replies; 5+ messages in thread
From: Cyril Hrubis @ 2019-03-06 15:23 UTC (permalink / raw)
To: ltp
Hi!
Sigh, misconfiguration here, should have been send from my SUSE account,
please ignore this one.
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants
2019-03-06 15:24 ` [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants Cyril Hrubis
@ 2019-03-06 16:42 ` Mark Salyzyn
0 siblings, 0 replies; 5+ messages in thread
From: Mark Salyzyn @ 2019-03-06 16:42 UTC (permalink / raw)
To: ltp
_THANKS_ for the set of changes!
On 03/06/2019 07:24 AM, Cyril Hrubis wrote:
> + case 2: {
> + struct compat_sel_arg_struct arg = {
> + ._n = (long)nfds,
> + ._inp = (long)readfds,
> + ._outp = (long)writefds,
> + ._exp = (long)exceptfds,
> + ._tvp = (long)timeout,
> + };
> +
> + return tst_syscall(__NR_select, &arg);
> + }
This fragment is correct for 32-bit configurations and 64-bit compat,
but for 64-bit binaries it is:
#if defined(__LP64__)
return tst_syscall(__NR_select, nfds, readfds, writefds, exceptfds, timeout);
#else
. . .
#endif
-- Mark
^ permalink raw reply [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants
2019-03-06 15:24 Cyril Hrubis
@ 2019-03-06 15:24 ` Cyril Hrubis
2019-03-06 16:42 ` Mark Salyzyn
0 siblings, 1 reply; 5+ messages in thread
From: Cyril Hrubis @ 2019-03-06 15:24 UTC (permalink / raw)
To: ltp
This commit makes use of the newly added test_multiplex() function to
switch between different syscall variants/wrappers at runtime.
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
CC: Mark Salyzyn <salyzyn@android.com>
CC: Steve Muckle <smuckle@google.com>
CC: Jan Stancek <jstancek@redhat.com>
---
testcases/kernel/syscalls/select/select04.c | 5 +-
testcases/kernel/syscalls/select/select_mpx.h | 79 +++++++++++++++++++
2 files changed, 83 insertions(+), 1 deletion(-)
create mode 100644 testcases/kernel/syscalls/select/select_mpx.h
diff --git a/testcases/kernel/syscalls/select/select04.c b/testcases/kernel/syscalls/select/select04.c
index 86bdffcdf..300992233 100644
--- a/testcases/kernel/syscalls/select/select04.c
+++ b/testcases/kernel/syscalls/select/select04.c
@@ -27,6 +27,8 @@
#include "tst_timer_test.h"
+#include "select_mpx.h"
+
static int fds[2];
static int sample_fn(int clk_id, long long usec)
@@ -39,7 +41,7 @@ static int sample_fn(int clk_id, long long usec)
FD_SET(fds[0], &sfds);
tst_timer_start(clk_id);
- TEST(select(1, &sfds, NULL, NULL, &timeout));
+ TEST(do_select(1, &sfds, NULL, NULL, &timeout));
tst_timer_stop();
tst_timer_sample();
@@ -69,5 +71,6 @@ static struct tst_test test = {
.scall = "select()",
.sample = sample_fn,
.setup = setup,
+ .test_multiplex = select_mpx,
.cleanup = cleanup,
};
diff --git a/testcases/kernel/syscalls/select/select_mpx.h b/testcases/kernel/syscalls/select/select_mpx.h
new file mode 100644
index 000000000..39c4e6517
--- /dev/null
+++ b/testcases/kernel/syscalls/select/select_mpx.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 Cyril Hrubis <chrubis@suse.cz>
+ */
+
+#ifndef SELECT_MPX
+#define SELECT_MPX
+
+#include "lapi/syscalls.h"
+
+static int sys_mpx = -1;
+
+struct compat_sel_arg_struct {
+ long _n;
+ long _inp;
+ long _outp;
+ long _exp;
+ long _tvp;
+};
+
+static int do_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
+{
+ switch (sys_mpx) {
+ case 0:
+ return select(nfds, readfds, writefds, exceptfds, timeout);
+ break;
+ case 1:
+ return tst_syscall(__NR__newselect, nfds, readfds, writefds, exceptfds, timeout);
+ break;
+ case 2: {
+ struct compat_sel_arg_struct arg = {
+ ._n = (long)nfds,
+ ._inp = (long)readfds,
+ ._outp = (long)writefds,
+ ._exp = (long)exceptfds,
+ ._tvp = (long)timeout,
+ };
+
+ return tst_syscall(__NR_select, &arg);
+ }
+ case 3: {
+ int ret;
+ struct timespec ts = {
+ .tv_sec = timeout->tv_sec,
+ .tv_nsec = timeout->tv_usec * 1000,
+ };
+ ret = tst_syscall(__NR_pselect6, nfds, readfds, writefds, exceptfds, &ts, NULL);
+ timeout->tv_sec = ts.tv_sec;
+ timeout->tv_usec = ts.tv_nsec / 1000;
+ return ret;
+ }
+ }
+
+ return -1;
+}
+
+static int select_mpx(void)
+{
+ switch (++sys_mpx) {
+ case 0:
+ tst_res(TINFO, "Testing glibc select()");
+ break;
+ case 1:
+ tst_res(TINFO, "Testing SYS__newselect syscall");
+ break;
+ case 2:
+ tst_res(TINFO, "Testing SYS_select syscall");
+ break;
+ case 3:
+ tst_res(TINFO, "Testing SYS_pselect6 syscall");
+ break;
+ case 4:
+ sys_mpx = -1;
+ return 0;
+ }
+
+ return 1;
+}
+
+#endif /* SELECT_MPX */
--
2.19.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
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Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2019-03-06 15:21 [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
2019-03-06 15:21 ` [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants Cyril Hrubis
2019-03-06 15:23 ` [LTP] [RFC PATCH 1/2] tst_test: Add test multiplex function Cyril Hrubis
2019-03-06 15:24 Cyril Hrubis
2019-03-06 15:24 ` [LTP] [RFC PATCH 2/2] syscalls/select04: Test four syscall variants Cyril Hrubis
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