dlopen.3: Document dlmopen(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dladdr.3: SEE ALSO: add dlinfo(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: SEE ALSO: add dlinfo(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlinfo.3: New page describing dlinfo(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dl_iterate_phdr.3: SEE ALSO: add dladdr(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: SEE ALSO: add dladdr(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dladdr1.3: New link to (new) dladdr(3) page

dladdr.3: New page documenting dladdr() and dladdr1()

Relocate/rewrite dladdr() text formerly contained in dlopen(3).

Add documentation of dladdr1().

Peter Baudis's "caveat text" was moved from dlopen() into
this page.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: Integrate dlvsym() discussion into main page text

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: Minor fix: remind reader that _init() and _fini() are obsolete

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: Remove dladdr() content

This content will be migrated to a new page.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: tfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: Minor wording fix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dlopen.3: Add VERSIONS section

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dl_iterate_phdr.3: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dl_iterate_phdr.3: CONFORMING TO: note that this function appears on some other systems

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

dl_iterate_phdr.3: Note that 'size' allows callback() to discover structure extensions

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

seccomp.2: SEE ALSO: add scmp_sys_resolver(1)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

seccomp.2: SEE ALSO: mention libseccomp pages

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

mktemp.3: 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.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

unshare.2: tfix: fix unbalanced parentheses

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

sendfile.2: tfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: NOTES: note undefined behavior for nl_langinfo_l()

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: POSIX specifies that the caller may not modify the returned string

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: Enhance RETURN VALUE description

Note some further cases where returned string may be
invalidated or overwritten.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: Explicitly describe the return value on success

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: Clarify details of nl_langinfo_l() return value

setlocale() does not come into play for nl_langinfo_l(),
as far as I can tell.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: Minor wording improvements

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo_l.3: New link to nl_langinfo.3

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nl_langinfo.3: Add documentation for nl_langinfo_l(3)

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

bpf.2: Minor tweaks after comments from Daniel Borkmann

Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

socketpair.2: Clarify use of SOOCK_* flags in 'type' argument

See http://bugs.debian.org/794217

Reported-by: Goswin von Brederlow <goswin-v-b@web.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

fanotify.7: Clarify effects of file moves

If files or directories are moved to other mounts, the inode is
deleted. Fanotify marks are lost.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

bpf(2): ffix: Fix formatting in function signature

Also add a missing period in the errno section.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_set_ppr_med.3: Various minor tweaks

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_set_ppr_med_low.3: New link to __ppc_set_ppr_med.3

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_set_ppr_low.3: New link to __ppc_set_ppr_med.3

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_set_ppr_med.3: 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).

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_yield.3: Minor tweaks

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_mdoio.3: New link to __ppc_yield.3

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_mdoom.3: New link to __ppc_yield.3

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

__ppc_yield.3: 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.

Signed-off-by: Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

vmsplice.2: Minor wording fixes

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

splice.2: tfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

tee.2: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

tee.2: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

bpf.2: Minor tweaks to Daniel Borkmann's patch

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

bpf.2: 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

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

sched.7: Fix descriptions of sched_get_priority_max() / sched_get_priority_min()

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

sched.7: wfix

Reported-by: Dilyan Palauzov <dilyan.palauzov@aegee.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

stat.2: wfix

Reported-by: Yaarit <yaarit@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

ld.so.8: Items in LD_LIBRARY_PATH can also be delimited by semicolons

See http://bgs.debian.org/794559.

Reported-by: Jonathan David Amery <jdamery@ysolde.ucam.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

mq_receive.3, mq_send.3: Clarify discussion of 'timeout'

In particular, remove the word 'ceiling', which falsely
suggests that the call might return prematurely.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

io_getevents.2: Note return value on interruption by a signal handler

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

io_getevents.2: Clarify details of return value for timeout-expired case

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

io_getevents.2: Clarify and extend discussion of 'timeout' argument

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nptl.7: Note that i386 and x86-64 binaries can't share mutexes

Quoting Nicholas Miell:

    PTHREAD_PROCESS_SHARED says any thread with access to the
    memory containing the mutex can operate on the mutex and
    POSIX basically ignores the idea that different processes
    could be running completely incompatible executables or
    whatever.

    pthread_mutex_t has a bunch of #ifdefs in the middle of it
    that change the structure size and layout between i386 and
    x86_64.

    Most importantly, the positions of the __nusers and __kind
    fields are swapped (this looks to be an oversight dating
    back to 2003 when __nusers was first introduced and carefully
    preserved when the separate i386 and x86_64 versions of
    pthreadtypes.h were merged into the single x86 version),
    which means that when the lock and unlock functions attempt
    to figure out what kind of mutex it is
    (recursive/adaptive/whatever), they'll look at the wrong
    field if the mutex is from the wrong architecture and then
    things will break.

    And then there's the fact that the rest of the struct is a
    union in the 32-bit version and flat in the 64-bit version,
    but that could have been worked around if you put a flag in
    the __kind field that tells the 64-bit pthread library that
    it is looking at a 32-bit mutex.

Reported-by: Nicholas Miell <nmiell@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

bpf.2: srcfix: FIXME

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

nptl.7: srcfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

printf.3: Describe dprintf() and vdprintf()

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wprintf.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wmemset.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wmemmove.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wmemcpy.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wmemcmp.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wmemchr.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wctype.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wctrans.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wctomb.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wctob.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcstombs.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcstok.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcstoimax.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsstr.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsspn.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsrtombs.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsrchr.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcspbrk.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsncpy.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsncmp.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcsncat.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcslen.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcscspn.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcscpy.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcscmp.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcschr.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcscat.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

wcrtomb.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

ungetwc.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

towctrans.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strxfrm.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strtod.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strstr.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strspn.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strpbrk.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strlen.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strfmon.3: Fix erroneous CONFORMNING to

strfmon() is in POSIX.1.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

strcpy.3: CONFORMING TO: add POSIX.1-2001 and POSIX.1-2008

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>