Hi Jan,
----- Original Message -----
>
>
>
>
> ----- Original Message -----
> > From: "Li Wang" <[email protected]>
> > To: [email protected]
> > Sent: Friday, 24 July, 2015 9:22:00 AM
> > Subject: [LTP] [PATCH] syscalls/sysfs: replace the TWARN to TCONF
> >
> > I run some of these cases on aarch64 today and get a series waring, that's
> > because
> > sysfs syscall is not implemented on aarch64. So, maybe TCONF is better than
> > TWARN
> > in the testcase.
>
> Are you sure it's not supported? Or is it just disabled in your kernel
> config?
> I'm looking at Kconfig and nothing suggests you can't use it on aarch64:
Hmm, to be precise, it has supported sysfs_syscall but not define '__NR_sysfs'
on aarch64.
My system config:
# grep -i sysfs_syscall /boot/config-4.1.0-0.12.el7.aarch64
CONFIG_SYSFS_SYSCALL=y
# grep -i EXPERT /boot/config-4.1.0-0.12.el7.aarch64
CONFIG_EXPERT is not set
(1)---->
If I change the code as:
diff --git a/testcases/kernel/syscalls/sysfs/sysfs01.c
b/testcases/kernel/syscalls/sysfs/sysfs01.c
index 11ebe43..770c9c9 100644
--- a/testcases/kernel/syscalls/sysfs/sysfs01.c
+++ b/testcases/kernel/syscalls/sysfs/sysfs01.c
@@ -67,6 +67,7 @@
******************************************************************************/
#include "test.h"
+#include "linux_syscall_numbers.h"
#include <errno.h>
#include <unistd.h>
#include <syscall.h>
@@ -85,14 +86,12 @@ int main(int ac, char **av)
setup();
-#ifdef __NR_sysfs
-
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
/* option 1, buf holds fs name */
- TEST(syscall(__NR_sysfs, 1, "proc"));
+ TEST(ltp_syscall(__NR_sysfs, 1, "proc"));
/* check return code */
if (TEST_RETURN == -1) {
@@ -102,10 +101,6 @@ int main(int ac, char **av)
tst_resm(TPASS, "sysfs(2) Passed for " "option 1");
}
} /*End of TEST_LOOPING */
-#else
- tst_resm(TWARN,
- "This test can only run on kernels that support the sysfs
system call");
-#endif
/*Clean up and exit */
cleanup();
It's show:
# ./sysfs01
sysfs01 1 TCONF : sysfs01.c:94: syscall __NR_sysfs not supported on your
arch
sysfs01 2 TCONF : sysfs01.c:94: Remaining cases not appropriate for
configuration
(2)---->
then I add the macro to "linux_syscall_numbers.h" by manual:
# grep -e __aarch64 -e __NR_sysfs linux_syscall_numbers.h -A 2 -B 2
#ifdef __aarch64__
...
# ifndef __NR_sysfs
# define __NR_sysfs 135
# endif
It's failed as:
# ./sysfs01
sysfs01 1 TFAIL : sysfs01.c:99: sysfs(2) Failed for option 1 and set
errno to 22
>
> config SYSFS_SYSCALL
> bool "Sysfs syscall support" if EXPERT
> default y
> ---help---
> sys_sysfs is an obsolete system call no longer supported in libc.
> Note that disabling this option is more secure but might break
> compatibility with some systems.
>
> If unsure say Y here.
>
> We have "linux_syscall_numbers.h", if you include that and use
> ltp_syscall() instead of syscall() you can remove the #ifdef,
> as it should TCONF at runtime (in case kernel gives you ENOSYS)
Yes, It's a better way. But I'm still not sure if it is good enough to format
a patchV2, like (1) or (1)+(2)? or any others?
Thanks!
Best,
Li Wang
>
> Regards,
> Jan
>
> >
> > Signed-off-by: Li Wang <[email protected]>
> > ---
> > testcases/kernel/syscalls/sysfs/sysfs01.c | 2 +-
> > testcases/kernel/syscalls/sysfs/sysfs02.c | 2 +-
> > testcases/kernel/syscalls/sysfs/sysfs03.c | 2 +-
> > testcases/kernel/syscalls/sysfs/sysfs04.c | 2 +-
> > testcases/kernel/syscalls/sysfs/sysfs05.c | 2 +-
> > testcases/kernel/syscalls/sysfs/sysfs06.c | 2 +-
> > 6 files changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs01.c
> > b/testcases/kernel/syscalls/sysfs/sysfs01.c
> > index 11ebe43..c29f6c0 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs01.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs01.c
> > @@ -103,7 +103,7 @@ int main(int ac, char **av)
> > }
> > } /*End of TEST_LOOPING */
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs02.c
> > b/testcases/kernel/syscalls/sysfs/sysfs02.c
> > index f7cb96a..54557cc 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs02.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs02.c
> > @@ -103,7 +103,7 @@ int main(int ac, char **av)
> > }
> > } /*End of TEST_LOOPING */
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs03.c
> > b/testcases/kernel/syscalls/sysfs/sysfs03.c
> > index 59b997e..9048dfe 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs03.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs03.c
> > @@ -101,7 +101,7 @@ int main(int ac, char **av)
> > }
> > } /*End of TEST_LOOPING */
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs04.c
> > b/testcases/kernel/syscalls/sysfs/sysfs04.c
> > index f4fda36..2b2530a 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs04.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs04.c
> > @@ -105,7 +105,7 @@ int main(int ac, char **av)
> > }
> > }
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs05.c
> > b/testcases/kernel/syscalls/sysfs/sysfs05.c
> > index e97f0c8..2ab6707 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs05.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs05.c
> > @@ -129,7 +129,7 @@ int main(int ac, char **av)
> > } /*End of TEST LOOPS */
> > }
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > diff --git a/testcases/kernel/syscalls/sysfs/sysfs06.c
> > b/testcases/kernel/syscalls/sysfs/sysfs06.c
> > index 121e944..7ef5ee2 100644
> > --- a/testcases/kernel/syscalls/sysfs/sysfs06.c
> > +++ b/testcases/kernel/syscalls/sysfs/sysfs06.c
> > @@ -132,7 +132,7 @@ int main(int ac, char **av)
> > } /*End of TEST LOOPS */
> > }
> > #else
> > - tst_resm(TWARN,
> > + tst_resm(TCONF,
> > "This test can only run on kernels that support the sysfs
> > system
> > call");
> > #endif
> >
> > --
> > 1.8.3.1
> >
> >
> > ------------------------------------------------------------------------------
> > _______________________________________________
> > Ltp-list mailing list
> > [email protected]
> > https://lists.sourceforge.net/lists/listinfo/ltp-list
> >
>
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