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==================== Changes in man-pages-3.76 ====================
Released: 2014-12-31, Munich
Contributors
------------
The following people contributed patches/fixes or (noted in brackets
in the changelog below) reports, notes, and ideas that have been
incorporated in changes in this release:
Adam Jiang <jiang.adam@gmail.com>
Andrea Balboni <andrea.balboni@unimore.it>
Andreas Schwab <schwab@suse.de>
Bernhard Walle <bernhard@bwalle.de>
Carlos O'Donell <carlos@redhat.com>
David Wragg <david@wragg.org>
Florian Westphal <fw@strlen.de>
Heinrich Schuchardt <xypron.glpk@gmx.de>
Huxiaoxiang <huxiaoxiang@huawei.com>
Jan Chaloupka <jchaloup@redhat.com>
Jonathan Wakely <jwakely@redhat.com>
Jonny Grant <jg@jguk.org>
Josh Triplett <josh@joshtriplett.org>
Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Laurent Georget <laurent.georget@supelec.fr>
Manuel López-Ibáñez <lopezibanez@gmail.com>
Marko Myllynen <myllynen@redhat.com>
Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>
Mel Gorman <mgorman@suse.de>
Michael Gehring <mg@ebfe.org>
Michael Haardt <michael@moria.de>
Michael Kerrisk <mtk.manpages@gmail.com>
Mike Frysinger <vapier@gentoo.org>
Rasmus Villemoes <rv@rasmusvillemoes.dk>
Richard Weinberger <richard@nod.at>
Rich Felker <dalias@libc.org>
Scott Harvey <scott.harvey@stonybrook.edu>
Siddhesh Poyarekar <siddhesh.poyarekar@gmail.com>
Simon Newton <nomis52@gmail.com>
Simon Paillard <spaillard@debian.org>
Sven Hoexter <sven@stormbind.net>
Tobias Werth <werth@cs.fau.de>
Weijie Yang <weijie.yang.kh@gmail.com>
Will Newton <will.newton@linaro.org>
Yuri Kozlov <yuray@komyakino.ru>
刘湃 <liupai_work@163.com>
尹杰 <writalnaie@gmail.com>
Apologies if I missed anyone!
New and rewritten pages
-----------------------
adjtimex.2
Laurent Georget
Add fields in struct timex description
This patch updates the man page with the new fields added in
struct timex since last edition of the man page.
Laurent Georget [Michael Kerrisk]
Document ADJ_TAI
Michael Kerrisk
Improve description of ADJ_OFFSET_SINGLESHOT
Michael Kerrisk
Add brief documentation of ADJ_MICRO and ADJ_NANO
Michael Kerrisk
Reformat return value list
And remove numeric values, since they're not needed
Michael Kerrisk
Other 'modes' bits are ignored on ADJ_OFFSET_*
Other bits in 'modes' are ignored if modes contains
ADJ_OFFSET_SINGLESHOT or ADJ_OFFSET_SS_READ.
Michael Kerrisk
Add nanosecond details
Fixes https://bugzilla.kernel.org/show_bug.cgi?id=61171.
Michael Kerrisk
Document ADJ_OFFSET_SS_READ
Michael Kerrisk
Reformat 'times' flags as list
And remove numeric values, since they're not needed.
Michael Kerrisk
Note effect of ADJ_NANO for ADJ_SETOFFSET
Michael Kerrisk
Add comment noting that timex structure contains padding bytes
Michael Kerrisk
Add more details to description of 'tai' field
Michael Kerrisk
Note meaning of "PLL" abbreviation
Michael Kerrisk
Clarify which 'timex' field is used by each 'modes' bit
Michael Kerrisk
Document timex 'status' bits
Michael Kerrisk
Clarify treatment of other 'modes' bits for ADJ_OFFSET_*
Michael Kerrisk
Update RFC number: RFC 5905 obsoletes RFC 1305
Michael Kerrisk
Briefly document ADJ_SETOFFSET
Michael Kerrisk
Note PPS (pulse per second) fields in timex structure
sigreturn.2
Michael Kerrisk
Add (a lot) more detail on the signal trampoline
And rewrite much of the page.
Newly documented interfaces in existing pages
---------------------------------------------
proc.5
Bernhard Walle
Document /proc/thread-self
/proc/thread-self has been introduced in Linux 3.17 with
commit 0097875bd41528922fb3bb5f348c53f17e00e2fd.
Sven Hoexter [Michael Kerrisk, Kamezawa Hiroyuki]
Document "VmSwap" field of /proc/[pid]/status
Florian Westphal
Document /proc/net/netfilter/nfnetlink_queue
Changes to individual pages
---------------------------
localedef.1
Marko Myllynen
Mention default path for compiled files
clock_nanosleep.2
Michael Kerrisk
Note that 'clock_id' can also be a CPU clock ID
epoll_ctl.2
Michael Kerrisk
Regular files and directories can't be monitored with epoll_ctl()
ioctl.2
Heinrich Schuchardt
Rename 'd' argument to 'fd' in text
In most other manpages file descriptors are called 'fd'.
This patches renames attribute 'd' to 'fd'.
madvise.2
Michael Kerrisk
VERSIONS: Support for madvise() is now configurable
Support for this system call now depends on the
CONFIG_ADVISE_SYSCALLS configuration option.
open.2
Michael Kerrisk
Enhance rationale discussion for openat() and friends
posix_fadvise.2
Mel Gorman
Document the behavior of partial page discard requests
It is not obvious from the interface that partial page discard'
requests are ignored. It should be spelled out.
Michael Kerrisk [Weijie Yang]
ERRORS: Since 2.6.16, the kernel correctly deals with the ESPIPE case
Michael Kerrisk
Support for fadvise64() is now configurable
Support for this system call now depends on the
CONFIG_ADVISE_SYSCALLS configuration option.
prctl.2
Andreas Schwab
Correct description of null-termination in PR_GET_NAME and PR_SET_NAME
The size of the process name has always been at most 16 byte
_including_ the null terminator. This also means that the
name returned by PR_GET_NAME is always null-terminated.
Michael Kerrisk
PR_SET_NAME silently truncates strings that exceed 16 bytes
restart_syscall.2
Michael Kerrisk
Add some text explaining why restart_syscall() exists
sched_setaffinity.2
Michael Kerrisk
NOTES: Add paragraph on how to discover set of CPUs available on system
Michael Kerrisk
SEE ALSO: add nproc(1) and lscpu(1)
select.2
Michael Kerrisk
SEE ALSO: add restart_syscall(2)
semop.2
Michael Kerrisk
Add note that interrupted semtimedop() returns 'timeout' unchanged
Michael Kerrisk
Remove information about semtimedop() EAGAIN that is repeated elsewhere
Michael Kerrisk
Add subsection head for semtimedop()
setsid.2
Michael Kerrisk
Rewrite some pieces and add some details
Among other changes, add an explanation of why setsid() can't
be called from a process group leader
sgetmask.2
Michael Kerrisk
Since 3.16, support for these system call is configurable
Support for these calls is now dependent on the setting of the
CONFIG_SGETMASK_SYSCALL option.
sigaction.2
Michael Kerrisk
Document SA_RESTORER
Michael Kerrisk
Add some detail on the sa_restorer field
Michael Kerrisk
SEE ALSO: add sigreturn(2)
splice.2
Michael Kerrisk
Reformat description of 'fd_in' and 'off_in' to improve readability
syscall.2
Michael Kerrisk
SEE ALSO: add errno(3)
syscalls.2
Michael Kerrisk
SEE ALSO: add errno(3)
Michael Kerrisk
3.19 adds execveat()
Michael Kerrisk
Add bpf(2) to list
tee.2
Michael Kerrisk
Add shell session demonstrating use of the example program
tkill.2
Michael Kerrisk [Rich Felker]
Remove bogus text saying tgid==-1 makes tgkill() equivalent to tkill()
abort.3
Michael Kerrisk
Note that SIGABRT is raised as though raise(3) is called
Also note that abort is POSIX.1-2008 compliant.
cmsg.3
David Wragg
ensure buf is suitably aligned in sending example
Inspection of the definition of CMSG_FIRSTHDR (both in glibc and
the suggested definition in RFC3542) shows that it yields the
msg_control field. So when sending, the pointer placed in
msg_control should be suitably aligned as a struct cmsghdr.
In the sending example, buf was declared as a bare char array,
and so is not necessarily suitably aligned.
The solution here involves placing buf inside a union, and is
based on the sockets/scm_rights_send.c sample from The Linux
Programming Interface "dist" source code collection.
exp10.3
Michael Kerrisk
Before glibc 2.19, exp() did not give ERANGE error on underflow
http://sources.redhat.com/bugzilla/show_bug.cgi?id=6787
ftw.3
Michael Kerrisk
FTW_CHDIR has no effect on the 'fpath' argument passed to fn()
getopt.3
Michael Kerrisk [Jonny Grant]
Ensure that 'nsecs' is used
ilogb.3
Michael Kerrisk [Will Newton]
Since glibc 2.16, ilogb() does correctly diagnore domain errors
memcmp.3
Michael Haardt
Document return value for n==0 case
Michael Haardt
Warn against use of memcmp() for comparing security-critical data
mq_open.3
Michael Kerrisk
Document the O_CLOEXEC flag
Michael Kerrisk
Place 'flags' constants in alphabetical order
pow.3
Manuel López-Ibáñez
Add note on performance characteristics of pow()
pthread_setschedparam.3
Simon Newton
Fix logic error in example program
The example program will crash if -A is used, since 'attr'
is uninitialized.
$ ./a.out -A
*** Error in `./a.out': free(): invalid pointer: 0xb779c3c4 ***
Aborted (core dumped)
刘湃
Small fixes to example program
sigvec.3
Michael Kerrisk
Starting with version 2.21, glibc no longer exports sigvec()
sysconf.3
Josh Triplett
Document _SC_NGROUPS_MAX
Already documented in getgroups(2), but not in sysconf(3).
termios.3
Michael Kerrisk
SEE ALSO: add tset(1)
tgamma.3
Michael Kerrisk
Since glibc 2.18, errno is correctly set to EDOM when (x == -infinity))
wordexp.3
Carlos O'Donell
Make it clear that WRDE_NOCMD prevents command substitution
The use of WRDE_NOCMD prevents command substitution. If the flag
WRDE_NOCMD is set then no command substitution shall occur and
the error WRDE_CMDSUB will be returned if such substitution is
requested when processing the words.
The manual page as-is makes it seem like the command substitution
occurs, and an error is returned *after* the substitution.
This patch clarifies that.
locale.5
Marko Myllynen
Describe the formats of values
locale(5) describes what a locale should define but doesn't
spell out how (in what format). The patch attempts to address
this, it also has few trivial additional enhancements.
* Reference to locale(7) for category descriptions.
* Clarify first_workday in NOTES a bit.
* Add upstream BZ reference for two missing LC_ADDRESS fields.
Marko Myllynen
Fix miscoded character
resolv.conf.5
Jan Chaloupka
Add missing no-tld-query option
Based on commit [1], ithe no-tld-query option exists for
resolv.conf configuration file. Description of this option
is provided in [2]. This patch just copies this option
into resolv.conf.5 man page. Plus changes 'a' member
into 'an' before 'unqualified name as if it ...'
on the third line of [2]. Based on [3], this option
was added in glibc 2.14 as solving [4] bug.
[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=f87dfb1f11c01f2ccdc40d81e134cd06b32e28e8
[2] http://www.daemon-systems.org/man/resolv.conf.5.html man page.
[3] https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=952f32af17e7fb49c4c1a305de673a13075bfaf5;hb=f87dfb1f11c01f2ccdc40d81e134cd06b32e28e8
[4] https://sourceware.org/bugzilla/show_bug.cgi?id=12734
credentials.7
Josh Triplett
Cross-reference getgroups(2)
Since credentials.7 discusses supplementary GIDs, it should
reference getgroups(2).
fanotify.7
Heinrich Schuchardt
Allow relative paths in example
The current example code requires passing an absolute
path to the mount to be watched.
By passing AT_FDCWD to fanotify_mark it can use both
absolute and relative paths.
Heinrich Schuchardt
fallocate(2) creates no events
fallocate(2) should create FAN_MODIFY events but does not.
Heinrich Schuchardt [Michael Kerrisk]
fanotify notifies only events generated on the same mount
Unfortunately, fanotify does not inform listeners for all paths
under which a touched filesystem object is visible, but only the
listener using the same path as the process touching the
filesystem object.
Heinrich Schuchardt
Update BUGS to note bugs still not fixed in 3.17
I bumped the Linux version number in the BUGS section to 3.17.
inotify.7
Heinrich Schuchardt
fallocate(2) does not trigger inotify events
Calling fallocate(2) does not result in inotify events.
locale.7
Marko Myllynen
Improve LOCPATH description
LOCPATH is ignored by privileged programs.
Add locale archive references.
Add FILES section.
man-pages.7
Michael Kerrisk [Laurent Georget]
Clarify that SEE ALSO entries may refer to pages from other projects
signal.7
Michael Kerrisk
Mention other "slow devices"
Reads from eventfd(2), signalfd(2), timerfd(2), inotify(7),
and fanotify(7) file descriptors are also slow operations
that are restartable.
Michael Kerrisk
Fix SO_RECVTIMEO/ SO_SENDTIMEO confusion in text
Michael Kerrisk
Since Linux 3.8, reads on inotify(7) file descriptors are restartable
Michael Kerrisk
inotify(7) reads no longer show the odd EINTR error after SIGCONT
Since kernel 3.7, reads from inotify(7) file descriptors no longer
show the (Linux oddity) behavior of failing with EINTR when the
process resumes after a stop signal + SIGCONT.
Michael Kerrisk
SEE ALSO: add sigreturn(2)
unix.7
Michael Kerrisk [Scott Harvey]
Fix buglet in code snippet in BUGS section
ld.so.8
Carlos O'Donell
Add --inhibit-cache option
The dynamic loader has 6 options, only 5 are documented.
This patch documents the sixth option i.e. `--inhibit-cache`.
Jonathan Wakely [Siddhesh Poyarekar]
Correct documentation of $ORIGIN
As noted by Siddhesh:
The ld.so man page says:
$ORIGIN (or equivalently ${ORIGIN})
This expands to the directory containing the
application executable. Thus, an application located
in somedir/app could be compiled with
This is incorrect since it expands to the directory containing
the DSO and not the application executable. This seems like
deliberate behaviour in dl-object.c, so it needs to be fixed in
the man page.
See http://stackoverflow.com/questions/26280738/what-is-the-equivalent-of-loader-path-for-rpath-specification-on-linux/26281226#26281226
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