libc - Take care of minor buffer overrun in link_ntoa()

* Take care of a minor buffer overrun in link_ntoa(). It is unlikely
that any program produces the conditions required to trigger the
pro

libc - Take care of minor buffer overrun in link_ntoa()

* Take care of a minor buffer overrun in link_ntoa(). It is unlikely
that any program produces the conditions required to trigger the
problem.

Taken-from: FreeBSD-SA-16:37.libc
Reported-by: swildner, zrj, others

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poll.2: Add some information about the ppoll() syscall.

* Explain timeout and newsigmask arguments. (inspired by FreeBSD's poll(2))

* Mention that ppoll() can be used for precise timeouts like the

poll.2: Add some information about the ppoll() syscall.

* Explain timeout and newsigmask arguments. (inspired by FreeBSD's poll(2))

* Mention that ppoll() can be used for precise timeouts like the ppoll()
in Linux.

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Fix some typos in manual pages.

sigpause.3: Add missing comma.

libc: Fix up compat-43 a bit.

* Functions in libc/compat-43 aren't syscalls so move their manual
pages to section 3.

* Move the stuff that is still POSIX to libc/gen: creat, gethostid,
getwd, k

libc: Fix up compat-43 a bit.

* Functions in libc/compat-43 aren't syscalls so move their manual
pages to section 3.

* Move the stuff that is still POSIX to libc/gen: creat, gethostid,
getwd, killpg. compat-43 isn't the right place for them.

* While here, a non-existant .PATH in compat-43/Makefile.inc.

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i386 removal, part 61/x: Adjust some further #ifdefs.

Remove some old architecture handling.

Affected #ifdefs:

__arm__
hp300
__ia64__
__mips__
__powerpc__
__sparc64__

LTO: Prevent -flto being used in main system libraries.

There are subtle ways it can get broken specially in libc and libm.
(-plugin-opt=-pass-through=-lc)
Both libpthread.a and rtld-elf could have

LTO: Prevent -flto being used in main system libraries.

There are subtle ways it can get broken specially in libc and libm.
(-plugin-opt=-pass-through=-lc)
Both libpthread.a and rtld-elf could have use of LTO but it is safer
for now not to expose internals. (affects only static libs)

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xlocale: Few style(9) fixes.

xlocale: Fix type of freelocale().

Per POSIX specs return type should be void. Previous type is apple'ism.

While there, adjust manpages to use the correct <loacle.h> header.

Taken-from: FreeBSD

Move __weak_reference() after symbols it links to.

Just for consistency. It also will help if prototype visibility would change.

Shouldn't lib/libc/gen/raise.c have weak refs to _raise() and raise(

Move __weak_reference() after symbols it links to.

Just for consistency. It also will help if prototype visibility would change.

Shouldn't lib/libc/gen/raise.c have weak refs to _raise() and raise()?

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<sys/cdefs.h>: Rework __weak_reference() macro.

My LTO build blew away weak symbols from slim LTO objects.
Use __strong_reference() + weak attribute to allow the compiler to catch
extern declaration

<sys/cdefs.h>: Rework __weak_reference() macro.

My LTO build blew away weak symbols from slim LTO objects.
Use __strong_reference() + weak attribute to allow the compiler to catch
extern declarations and not to fold weak symbols as local ones.

Keep previous version as __weak_reference_asm() in _pthread_stubs.c for
now due to several issues (there is a need to do it in a cleaner way).

lib/libc/gen/ucontext.c:
add missing __DECONST for ucp, shouldn't sigreturn take const ucontext_t?

lib/libc/inet/inet_ntoa.c:
add missing #undef inet_ntoa_r

No symbol changes in libc and librt on normal compilation.

While there, add __weak_symbol attribute for future additions.

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libc: Rip out pthread_cancel stub symbol.

After looking through use cases i couldn't find any signs of libc
needing to provide stub for pthread_cancel() function.
It doesn't make much sense for any

libc: Rip out pthread_cancel stub symbol.

After looking through use cases i couldn't find any signs of libc
needing to provide stub for pthread_cancel() function.
It doesn't make much sense for any program to use this symbol but
not use the pthread_create(). With this assumption it should be safe
to move out pthread_cancel() from libc to libpthread.so dummy to be
together with weak symbol of pthread_create().

Add special WRlc() macro that creates only the internal version stub
to still provide the _pthread_cancel symbol even if it unused in libc.

Doing just that fixes how gcc libs check for pthread presence when
playing weak symbol chasing games withouto any confingure time tests.

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kernel - Minor documentation adjustment for arc4random

* Minor documentation adjustment for arc4random

kernel/clock_gettime: Various fixes.

* Fix CLOCK_PROF and CLOCK_VIRTUAL to behave like FreeBSD's. They are
not meant to return the values of ITIMER_PROF and ITIMER_VIRTUAL
(which are decreasing,

kernel/clock_gettime: Various fixes.

* Fix CLOCK_PROF and CLOCK_VIRTUAL to behave like FreeBSD's. They are
not meant to return the values of ITIMER_PROF and ITIMER_VIRTUAL
(which are decreasing, see getitimer(2)), like they were implemented
by 91810a6f0686477493e9915e98cfc5adcbe91363. This also fixes
CLOCK_PROCESS_CPUTIME_ID.

* Fix CLOCK_PROCESS_THREAD_ID. It was adding the values wrongly in a
way that could cause tv_nsec to overflow (i.e. become >= 1000000000).

* Fix clock_getres() for CLOCK_{PROCESS,THREAD}_CPUTIME_ID.

* Mention CLOCK_{PROCESS,THREAD}_CPUTIME_ID in clock_gettime()'s manual
page.

* Bring in some minor manual page fixes from FreeBSD.

Reported-by: zhtw
Dragonfly-bug: <https://bugs.dragonflybsd.org/issues/2951>

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libc - restir arc4random() on fork()

* Fix an issue where the arc4random() function was not being re-stirred
on a fork.

Reported-by: zrj

libc - Fix malloc() alignment for small allocations

* malloc()'s slab allocator was set to use 8-byte alignment
for any allocation < 128 bytes that was not otherwise on
an integral alignment bou

libc - Fix malloc() alignment for small allocations

* malloc()'s slab allocator was set to use 8-byte alignment
for any allocation < 128 bytes that was not otherwise on
an integral alignment boundary. This breaks GCC-7 which assumes
16-byte alignment for non-16-integral sizes < 128 bytes. e.g.
if 18 bytes is allocated, GCC-7 assumes the resulting pointer will
be 16-byte-aligned.

* The standard is somewhat deficient in its characterization of what the
required alignment should be, because there are already instructions
which prefer 32 and 64 byte alignments, but are relaxed on Intel to
only require 16-byte alignments (aka %ymm and %zmm registers in the
vector extensions), and its stupid to enforce even larger alignments
for tiny allocations.

* But generally speaking it makes sense to enforce a 16-byte alignment
for any allocations >= 16 bytes, regardless of the size being passed-in
not being 16-byte aligned, and this change does that. Allocations of
less than 16 bytes will still be 8-byte aligned because it is phenominally
wasteful for them not to be.

Reported-by: marino

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Remove usage of _WITH_GETLINE and _WITH_DPRINTF.

While there, update RCS tags.

<strio.h>: Drop ancient guards from getline() and dprintf().

Since FreeBSD in r303524 removed these guards and most of freebsd-ports
are fixed, it is finally safe to do the same on DragonFly and dpo

<strio.h>: Drop ancient guards from getline() and dprintf().

Since FreeBSD in r303524 removed these guards and most of freebsd-ports
are fixed, it is finally safe to do the same on DragonFly and dports.

While there, update manpages and add fix in vfprintf.c too.

Taken-from: FreeBSD

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libc/net: Rename dprintf() to not conflict with dprintf(3).

NOTE: there seems to be missing patches from NetBSD.
Network bits expert needed.