pthread_sigqueue.3
Michael Kerrisk
- New page documenting ptrhead_sigqueue()
+ New page documenting pthread_sigqueue()
pthread_sigqueue() is new in glibc 2.11 (requires a kernel with
rt_tgsigqueinfo(), added in Linux 2.6.31).
timerfd_create.2
Michael Kerrisk [Josh Triplett]
- Note behavior when timerdfd_settime() old_value is NULL
+ Note behavior when timerfd_settime() old_value is NULL
See http://bugs.debian.org/cgi-bin/bugreport.cgi?641513
Tomislav Jonjic
Fix small error in description of timerfd_settime()
lseek.2
Michael Kerrisk [Andreas Jaeger]
- _GNU_SOURCE must be defined to get SEEK_DATE and SEEK_HOLE definitions
+ _GNU_SOURCE must be defined to get SEEK_DATA and SEEK_HOLE definitions
See http://sourceware.org/bugzilla/show_bug.cgi?id=15312
mmap.2
Remove mention of bogus _ISOC95_SOURCE macro
The _ISOC95_SOURCE macro is defined in <features.h>, but it
does nothing. So remove discussion of it, and move some of
- the discussion of C95 under the ISOC99_SOURCE subhead.
+ the discussion of C95 under the _ISOC99_SOURCE subhead.
Michael Kerrisk [Carlos O'Donell]
Add packaging note for _BSD_SOURCE/_SVID_SOURCE/_DEFAULT_SOURCE
To compile warning-free across glibc < 2.20 and glibc >= 2.20
name_to_handle_at.2
Michael Kerrisk
- New link to new open_by_name_at(2) page
+ New link to new open_by_handle_at(2) page
Global changes
Heinrich Schuchardt [Michael Kerrisk]
BUGS: Note possible bug triggered by watch descriptor reuse
Watch descriptor IDs are returned by inotify_add_watch().
- When calling inotify_rm_watch() an IN_IGNORE is placed on the
+ When calling inotify_rm_watch() an IN_IGNORED is placed on the
inotify queue pointing to the ID of the removed watch.
- inotify_add_watchi() should not return a watch descriptor ID for
+ inotify_add_watch() should not return a watch descriptor ID for
which events are still on the queue but should return an
unused ID.
Michael Kerrisk
SEE ALSO: add ld(1)
+
+
+==================== Changes in man-pages-3.75 ====================
+
+Released: 2014-10-15, Düsseldorf
+
+
+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:
+
+Jonny Grant <jg@jguk.org>
+Michael Kerrisk <mtk.manpages@gmail.com>
+Robert Schweikert <rjschwei@suse.com>
+Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
+Walter Harms <wharms@bfs.de>
+
+Apologies if I missed anyone!
+
+
+New and rewritten pages
+-----------------------
+
+pthread_rwlockattr_setkind_np.3
+ Robert Schweikert [Michael Kerrisk]
+ New page documenting pthread_rwlockattr_[sg]etkind_np(3)
+ Documents pthread_rwlockattr_setkind_np(3) and
+ pthread_rwlockattr_getkind_np(3).
+
+
+New and changed links
+---------------------
+
+pthread_rwlockattr_getkind_np.3
+ Robert Schweikert
+ New link to pthread_rwlockattr_setkind_np(3)
+
+
+Changes to individual pages
+---------------------------
+
+readlink.2
+ Michael Kerrisk [Jonny Grant]
+ Add free() call to example program
+
+readv.2
+ Michael Kerrisk
+ The raw preadv() and pwritev() syscalls split 'offset' into 2 arguments
+
+signal.7
+ Michael Kerrisk
+ pthread_mutex_lock() and pthread_cond_wait() are restartable
+ pthread_mutex_lock(, pthread_cond_wait(), and related APIs are
+ automatically restarted if interrupted by a signal handler.
+
+unix.7
+ Michael Kerrisk [Carlos O'Donell, David Miller, Tetsuo Handa]
+ Various additions and rewordings
+ Notable changes:
+ * Clarify some details for pathname sockets.
+ * Add some advice on portably coding with pathname sockets.
+ * Note the "buggy" behavior for pathname sockets when
+ the supplied pathname is 108 bytes (after a report by
+ Tetsuo Handa).
+
+
+==================== 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 calls 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 diagnose 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], the 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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