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linux/tools/testing/selftests/proc
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Alexey Dobriyan 3adb2d8723 proc: fix test for "vsyscall=xonly" boot option 
Booting with vsyscall=xonly results in the following vsyscall VMA:

	ffffffffff600000-ffffffffff601000 --xp ... [vsyscall]


Test does read from fixed vsyscall address to determine if kernel
supports vsyscall page but it doesn't work because, well, vsyscall
page is execute only.

Fix test by trying to execute from the first byte of the page which
contains gettimeofday() stub. This should work because vsyscall
entry points have stable addresses by design.

	Alexey, avoiding parsing .config, /proc/config.gz and
	/proc/cmdline at all costs.

Link: https://lkml.kernel.org/r/Ys2KgeiEMboU8Ytu@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: <dylanbhatch@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-17 17:31:43 -07:00
..
.gitignore
procfs: do not list TID 0 in /proc/<pid>/task
2021-11-09 10:02:48 -08:00
config
…
fd-001-lookup.c
selftests: fix warning: "_GNU_SOURCE" redefined
2018-10-24 14:49:37 -06:00
fd-002-posix-eq.c
tools/testing/selftests/proc: test /proc/*/fd a bit (+ PF_KTHREAD is ABI!)
2018-06-07 17:34:38 -07:00
fd-003-kthread.c
selftests: fix warning: "_GNU_SOURCE" redefined
2018-10-24 14:49:37 -06:00
Makefile
procfs: do not list TID 0 in /proc/<pid>/task
2021-11-09 10:02:48 -08:00
proc-fsconfig-hidepid.c
proc: use human-readable values for hidepid
2020-04-22 10:51:22 -05:00
proc-loadavg-001.c
selftests: proc: fix warning: _GNU_SOURCE redefined
2020-11-05 10:08:14 -07:00
proc-multiple-procfs.c
proc: allow to mount many instances of proc in one pid namespace
2020-04-22 10:51:21 -05:00
proc-pid-vm.c
proc: fix test for "vsyscall=xonly" boot option
2022-07-17 17:31:43 -07:00
proc-self-map-files-001.c
proc: fixup copyright sign
2018-04-12 20:52:25 -07:00
proc-self-map-files-002.c
selftests: proc: Make va_max 1MB
2019-11-07 14:52:57 -07:00
proc-self-syscall.c
selftests: proc: fix warning: _GNU_SOURCE redefined
2020-11-05 10:08:14 -07:00
proc-self-wchan.c
proc: return exit code 4 for skipped tests
2019-03-05 21:07:21 -08:00
proc-subset-pid.c
selftests: proc: test subset=pid
2021-05-06 19:24:11 -07:00
proc-tid0.c
procfs: do not list TID 0 in /proc/<pid>/task
2021-11-09 10:02:48 -08:00
proc-uptime-001.c
proc: fixup copyright sign
2018-04-12 20:52:25 -07:00
proc-uptime-002.c
selftests: proc: fix warning: _GNU_SOURCE redefined
2020-11-05 10:08:14 -07:00
proc-uptime.h
tools/testing/selftests/proc: test /proc/*/fd a bit (+ PF_KTHREAD is ABI!)
2018-06-07 17:34:38 -07:00
proc.h
proc: test /proc/thread-self symlink
2018-08-22 10:52:45 -07:00
read.c
proc: mandate ->proc_lseek in "struct proc_ops"
2021-05-06 19:24:11 -07:00
self.c
proc: test /proc/self symlink
2018-08-22 10:52:45 -07:00
setns-dcache.c
proc: fix /proc/net/* after setns(2)
2019-02-01 15:46:22 -08:00
setns-sysvipc.c
proc: test /proc/sysvipc vs setns(CLONE_NEWIPC)
2019-07-16 19:23:21 -07:00
thread-self.c
proc: test /proc/thread-self symlink
2018-08-22 10:52:45 -07:00