The ioctl(2) system call may be used to retrieve information about
the FAT file system and to set file attributes.
Signed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The lm bit should never have existed in the first place. Sigh.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The documentation for set_thread_area was very vague. This
improves it, accounts for recent kernel changes, and merges
it with get_thread_area.2.
get_thread_area.2 now becomes a link.
While I'm at it, clarify the related arch_prctl.2 man page.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This clarifies the behavior and documents all four functions.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
mktemp(3)'s DESCRIPTION referenced NOTES, but no such
section exists. Corrected to refer to BUGS.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Currently the PERF_EVENT_IOC_REFRESH ioctl, when applied to a group
leader, will refresh all children. Also if a refresh value of 0
is chosen then the refresh becomes infinite (never runs out).
Back in 2011 PAPI was relying on these behaviors but I was told
that both were unsupported and subject to being removed at any time.
(See https://lkml.org/lkml/2011/5/24/337 )
However the behavior has not been changed.
This patch updates the manpage to still list the behavior as
unsupported, but removes the inaccurate description of it
only being a problem with 2.6 kernels.
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fork.2 should clearly point out that child and parent
process run in separate memory spaces.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
mtk: confirmed by reading source of parse_conf() in
elf/ldconfig.c.
Reported-by: Patrick Horgan <phorgan1@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
tzset.3 does not illustrate the POSIX offset format.
Specifically, there is no indication in the manual
what the optional components of it are.
Signed-off-by: J William Piggott <elseifthen@gmx.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Extend description of PTRACE_SEIZE with the short summary of its
differences from PTRACE_ATTACH.
The following paragraph:
PTRACE_EVENT_STOP
Stop induced by PTRACE_INTERRUPT command, or group-stop, or ini-
tial ptrace-stop when a new child is attached (only if attached
using PTRACE_SEIZE), or PTRACE_EVENT_STOP if PTRACE_SEIZE was used.
has an editing error (the part after last comma makes no sense).
Removing it.
Mention that legacy post-execve SIGTRAP is disabled by PTRACE_SEIZE.
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Michael Kerrisk