Linux kernel commit ee988c11acf6f9464b7b44e9a091bf6afb3b3a49 added two
new HWCAP bits: one for ARCH_3_1, which is the Power10 ISA revision, and
one for MMA, which is the optional Matrix Multiply Assist extension.
Before this commit, DNS timeouts always used CLOCK_REALTIME, which
could produce spurious timeouts or delays if wall time changed for
whatever reason.
Now we try CLOCK_MONOTONIC and only fall back to CLOCK_REALTIME when
it is unavailable.
This ensures that the musl definition of 'struct iphdr' does not conflict
with the Linux kernel UAPI definition of it.
Some software, i.e. net-tools, will not compile against 5.4 kernel headers
without this patch and the corresponding Linux kernel patch.
POSIX: "[If] either O_TTY_INIT is set in oflag or O_TTY_INIT has the
value zero, open() shall set any non-standard termios structure
terminal parameters to a state that provides conforming behavior."
The Linux kernel tty drivers always perform initialisation on their
devices to set known good termios values during the open(2) call. This
means that setting O_TTY_INIT to zero is conforming.
Some packages call gettext to format a message to be sent to perror.
If the currently set user locale points to a non-existent .mo file,
open via __map_file in dcngettext will set errno to ENOENT.
Maintainer's notes: Non-modification of errno is a documented part of
the interface contract for the GNU version of this function and likely
other versions. The issue being fixed here seems to be a regression
from commit 1b52863e24, which enabled
setting of errno from __map_file.
This manifests itself in mktime if tm_isdst = 1 and the current TZ= is
a POSIX timezone specification. mktime would see that tm_isdst was set
to 0 by __secs_to_zone, and subtract 'oppoff' (dst_off) - gmtoff from
the resultant time. This meant that mktime returned a time that was
exactly double the GMT offset of the desired timezone when tm_isdst
was = 1.
If AI_NUMERICSERV is specified and a numeric service was not provided,
POSIX mandates getaddrinfo return EAI_NONAME. EAI_SERVICE is only for
services that cannot be used on the specified socket type.
POSIX defines getdate error #5 as:
"An I/O error is encountered while reading the template file."
POSIX defines getdate error #7 as:
"There is no line in the template that matches the input."
This change correctly disambiguates between the two error conditions.
