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==================== Changes in man-pages-4.02 ====================
Released: 2015-08-08, 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:
Carlos O'Donell <carlos@redhat.com>
Daniel Borkmann <daniel@iogearbox.net>
David Rientjes <rientjes@google.com>
Dilyan Palauzov <dilyan.palauzov@aegee.org>
Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>
Goswin von Brederlow <goswin-v-b@web.de>
Heinrich Schuchardt <xypron.glpk@gmx.de>
Jonathan David Amery <jdamery@ysolde.ucam.org>
Michael Kerrisk <mtk.manpages@gmail.com>
Mike Frysinger <vapier@gentoo.org>
Mike Kravetz <mike.kravetz@oracle.com>
Nicholas Miell <nmiell@gmail.com>
Nikola Forró <nforro@redhat.com>
Sam Varshavchik <mrsam@courier-mta.com>
Yaarit <yaarit@gmail.com>
Zeng Linggang <zenglg.jy@cn.fujitsu.com>
Apologies if I missed anyone!
New and rewritten pages
-----------------------
dladdr.3
Michael Kerrisk
New page documenting dladdr() and dladdr1()
Relocate/rewrite dladdr() text formerly contained in dlopen(3).
Add documentation of dladdr1().
Zeng Linggang
ATTRIBUTES: Note functions that are thread-safe
dlerror.3
Michael Kerrisk
Migrate dlerror(3) to new separate man page
Michael Kerrisk
Note that the returned message may be in a statically allocated buffer
Michael Kerrisk
Note that the returned string does not include a trailing newline
Zeng Linggang
ATTRIBUTES: Note function that is thread-safe
dlinfo.3
Michael Kerrisk
New page describing dlinfo(3)
Zeng Linggang
ATTRIBUTES: Note function that is thread-safe
dlopen.3
Michael Kerrisk
This page was substantially rewritten and enhanced. Notably:
* the dladdr(), dlsym, dlvsym(), and dlerror() content were moved
to separate new pages;
* documentation for dlmopen was added;
* and other changes as noted below.
Zeng Linggang
ATTRIBUTES: Note functions that are thread-safe
Michael Kerrisk
Move atexit() discussion under "Initialization and Finalization"
Michael Kerrisk
Move discussion of _init() and _fini() to NOTES
Michael Kerrisk
Rework the discussion of initialization and finalization functions
Deemphasize the obsolete _init/_fini and give more prominence
to gcc constructors/destructors.
Michael Kerrisk
dlclose() will unload the object when all references have been released
Michael Kerrisk
EXAMPLE: Remove mention of "-rdynamic"
That option isn't needed for compiling and running this program.
Michael Kerrisk
Remove reference to ld.so info page
The command "info ld.so" simply shows the man page...
Michael Kerrisk
Add VERSIONS section
Michael Kerrisk
Reorganize conformance information for 'flags'
dlsysm.3
Michael Kerrisk
Move dlsym() and dlvsym() content to new separate page
Zeng Linggang
ATTRIBUTES: Note functions that are thread-safe
Newly documented interfaces in existing pages
---------------------------------------------
dlopen.3
Michael Kerrisk, Carlos O'Donell
Document dlmopen(3)
nl_langinfo.3
Sam Varshavchik, Michael Kerrisk
Add documentation for nl_langinfo_l(3)
__ppc_set_ppr_med.3
Gabriel F. T. Gomes
Document PPC functions providing access to PPR
GNU C Library 2.18 adds functions (__ppc_set_ppr_low(3),
__ppc_set_ppr_med(3), __ppc_set_ppr_med_low(3)) that provide
access to the Program Priority Register (PPR).
__ppc_yield.3
Gabriel F. T. Gomes
Document PPC performance-hint functions
GNU C Library 2.18 adds functions __ppc_yield(3), __ppc_mdoio(3),
and __ppc_mdoom(3) that can be used provide a hint that
performance could be improved if shared resources are released
for use by other processors.
New and changed links
---------------------
dladdr1.3
Michael Kerrisk
New link to (new) dladdr(3) page
dlmopen.3
Michael Kerrisk
New link to dlopen.3
dlvsym.3
Michael Kerrisk
Adjust link to point to new self-contained dlsym(3) page
nl_langinfo_l.3
Michael Kerrisk
New link to nl_langinfo.3
__ppc_mdoio.3
Gabriel F. T. Gomes
New link to __ppc_yield.3
__ppc_mdoom.3
Gabriel F. T. Gomes
New link to __ppc_yield.3
__ppc_set_ppr_low.3
Gabriel F. T. Gomes
New link to __ppc_set_ppr_med.3
__ppc_set_ppr_med_low.3
Gabriel F. T. Gomes
New link to __ppc_set_ppr_med.3
Global changes
--------------
Very many pages
Michael Kerrisk
Update CONFORMING TO section to reflect POSIX.1-2001 and POSIX.1-2008
details. (By now, I believe all pages should be up to date with
respect to appropriately mentioning POSIX.1-2001 and POSIX.1-2008.)
ldd.1
sprof.1
execve.2
dlopen.3
ld.so.8
Michael Kerrisk
Prefer "shared object" over "shared library"
The man pages variously use "shared library" or "shared object".
Try to more consistently use one term ("shared object"), while
also pointing out on a few pages that the terms are synonymous.
Changes to individual pages
---------------------------
accept.2
Michael Kerrisk
Add mention of POSIX.1-2008 regarding EAGAIN vs EWOULDBLOCK
bpf.2
Daniel Borkmann
Various updates/follow-ups to address some fixmes
A couple of follow-ups to the bpf(2) man-page, besides others:
* Description of map data types
* Explanation on eBPF tail calls and program arrays
* Paragraph on tc holding ref of the eBPF program in the kernel
* Updated ASCII image with tc ingress and egress invocations
* __sync_fetch_and_add() and example usage mentioned on arrays
* minor reword on the licensing and other minor fixups
execve.2
Michael Kerrisk
Reword text on POSIX and #!
io_getevents.2
Michael Kerrisk
Note return value on interruption by a signal handler
Michael Kerrisk
Clarify details of return value for timeout-expired case
Michael Kerrisk
Clarify and extend discussion of 'timeout' argument
mmap.2
Michael Kerrisk
Note that 'length' need not be a page-size multiple for munmap()
Michael Kerrisk [David Rientjes, David Rientjes, Mike Kravetz]
Describe mmap()/munmap() argument requirements for huge-page mappings
Michael Kerrisk
Move discussion of timestamps to NOTES
A straight move; no changes to the content.
This content is better placed in NOTES.
seccomp.2
Michael Kerrisk
SEE ALSO: mention libseccomp pages
SEE ALSO: add scmp_sys_resolver(1)
sigaction.2
Michael Kerrisk
Correct the list of flags that were added in POSIX.1-2001
socketpair.2
Michael Kerrisk [Goswin von Brederlow]
Clarify use of SOCK_* flags in 'type' argument
See http://bugs.debian.org/794217
atexit.3
Michael Kerrisk
SEE ALSO: add dlopen(3)
clock_getcpuclockid.3
Michael Kerrisk
Improve wording of EPERM error
It's imprecise to say that this is an "optional" error
in POSIX.1.
dl_iterate_phdr.3
Michael Kerrisk
Note that 'size' allows callback() to discover structure extensions
Michael Kerrisk
SEE ALSO: add dladdr(3)
Michael Kerrisk
CONFORMING TO: note that this function appears on some other systems
fseeko.3
Michael Kerrisk
Remove crufty NOTES section
This ancient System V detail is unneeded.
getutent.3
Michael Kerrisk
Mention POSIX.1-2008 for the "utmpx" functions
iconv_close.3
iconv_open.3
Michael Kerrisk
CONFORMING TO: change "UNIX98" to "SUSv2"
malloc.3
Michael Kerrisk
Change "UNIX 9*" to "SUSv2"
mktemp.3
Gleb Fotengauer-Malinovskiy
Reference mkdtemp(3) in addition to mkstemp(3)
Mention mkdtemp(3) as another secure alternative to mktemp(3).
See also https://sourceware.org/bugzilla/show_bug.cgi?id=2898.
mq_receive.3
mq_send.3
Michael Kerrisk
Clarify discussion of 'timeout'
In particular, remove the word 'ceiling', which falsely
suggests that the call might return prematurely.
nl_langinfo.3
Michael Kerrisk
Explicitly describe the return value on success
Michael Kerrisk
POSIX specifies that the caller may not modify the returned string
Michael Kerrisk
Enhance RETURN VALUE description
Note some further cases where returned string may be
invalidated or overwritten.
perror.3
Michael Kerrisk
Reformat CONFORMING to information
Michael Kerrisk
Note that 'sys_errlist' and 'sys_nerr' are not in POSIX.1
posix_openpt.3
Michael Kerrisk
Reword text regarding systems that don't have posix_openpt()
printf.3
Michael Kerrisk
CONFORMING TO: update details for dprintf() and vdprintf()
setlogmask.3
Michael Kerrisk
Remove useless statement in CONFORMING TO
Saying that the description in PSOX.1-2001 is flawed,
without saying what the fla is, is not helpful.
(And no, I don't know what the flaw is.)
shm_open.3
Michael Kerrisk
Add POSIX.1-2008 details regarding group ID of new shared memory object
strfmon.3
Michael Kerrisk
Fix erroneous CONFORMING to
strfmon() is in POSIX.1.
fanotify.7
Heinrich Schuchardt
Clarify effects of file moves
If files or directories are moved to other mounts, the inode is
deleted. Fanotify marks are lost.
mq_overview.7
Michael Kerrisk
Remove unneeded CONFORMING TO section
nptl.7
Michael Kerrisk [Nicholas Miell]
Note that i386 and x86-64 binaries can't share mutexes
sched.7
Nikola Forró
Fix descriptions of sched_get_priority_max() / sched_get_priority_min()
sem_overview.7
Michael Kerrisk
Remove unneeded CONFORMING TO section
shm_overview.7
Michael Kerrisk
Remove unneeded CONFORMING TO section
sigevent.7
Michael Kerrisk
Remove unneeded CONFORMING TO section
symlink.7
Michael Kerrisk
Update with POSIX.1-2008 details for link(2)
ld.so.8
Michael Kerrisk [Jonathan David Amery]
Items in LD_LIBRARY_PATH can also be delimited by semicolons
See http://bugs.debian.org/794559.
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