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Fix tst-setgetname for Linux kernels < 2.6.33.

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Support for /proc/self/task/$tid/comm as added in Linux 2.6.33,
therefore since the test tst-setgetname relies on this functionality
to operate we must skip the test in kernels < 2.6.33. We wrap the
checks with __ASSUME_PROC_PID_TASK_COMM such that in the future when
we move arch_minimum_kernel to 2.6.33 we can remove this code.
This commit is contained in:
Carlos O'Donell 2014-02-05 10:10:34 -05:00
parent cff469ca41
commit f877c4f2bf
4 changed files with 32 additions and 0 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2014-02-05 Carlos O'Donell <carlos@rehdat.com>
* sysdeps/unix/sysv/linux/kernel-features.h
[__LINUX_KERNEL_VERSION >= 0x020621]
(__ASSUME_PROC_PID_TASK_COMM): Define.
2014-02-05 Siddhesh Poyarekar <siddhesh@redhat.com>
* manual/contrib.texi: Update entry for Ondrej Bilka, Will

6
nptl/ChangeLog
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@ -1,3 +1,9 @@
2014-02-05 Carlos O'Donell <carlos@redhat.com>
* sysdeps/unix/sysv/linux/tst-setgetname.c (do_test): Skip the
test if !__ASSUME_PROC_PID_TASK_COMM and get_self_comm returns
ENOENT.
2014-01-23 Stefan Liebler <stli@linux.vnet.ibm.com>
* tst-tls7.c: Adjust testcase timeout

14
nptl/sysdeps/unix/sysv/linux/tst-setgetname.c
View File

@ -23,6 +23,7 @@
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <kernel-features.h>
/* New name of process. */
#define NEW_NAME "setname"
@ -99,6 +100,19 @@ do_test (int argc, char **argv)
if (res == 0)
{
res = get_self_comm (gettid (), name_check, TASK_COMM_LEN);
#if !__ASSUME_PROC_PID_TASK_COMM
/* On this first test we look for ENOENT to be returned from
get_self_comm to indicate that the kernel is older than
2.6.33 and doesn't contain comm within the proc structure.
In that case we skip the entire test. */
if (res == ENOENT)
{
printf ("SKIP: The kernel does not have /proc/self/task/%%lu/comm.\n");
return 0;
}
#endif
if (res == 0)
{
if (strncmp (name, name_check, strlen (BIG_NAME)) == 0)

6
sysdeps/unix/sysv/linux/kernel-features.h
View File

@ -202,6 +202,12 @@
# define __ASSUME_RECVMMSG 1
#endif
/* Support for /proc/self/task/$tid/comm and /proc/$pid/task/$tid/comm were
added in 2.6.33. */
#if __LINUX_KERNEL_VERSION >= 0x020621
# define __ASSUME_PROC_PID_TASK_COMM 1
#endif
/* statfs fills in f_flags since 2.6.36. */
#if __LINUX_KERNEL_VERSION >= 0x020624
# define __ASSUME_STATFS_F_FLAGS 1