<fcntl.h> is POSIX. On Linux, <sys/fcntl.h> simply includes
<fcntl.h>, so there should be on difference. On Android
likewise, except that there is some more stuff. QNX has
only <fcntl.h>.
Tom Gundersen [Thu, 11 Apr 2013 19:14:40 +0000 (21:14 +0200)]
tmpfiles: create static device nodes before udev is started
Since v183, the contents of /usr/lib/udev/devices is no longer copied to /dev
on boot, rather systemd-tmpfiles should be used instead. However, as
systemd-tmpfiles --create is only ran long after udevd has been started, it is
no longer possible to use udev rules to assign permissions to the static nodes.
This calls systemd-tmpfiles --create early, before udev is started, and
restricts the call to /dev, which is known to be mounted already.
In the future, this could also take over the creation of static device nodes
from systemd-udevd.
Make sure we compare errno against positive error codes.
The ones in hwclock.c and install.c can have an impact, the
rest are unlikely to be hit or in code that isn't widely
used.
Also check that errno > 0, to help gcc know that we are
returning a negative error code.
In case of zsh completion, new functionality is less useful
because of caching. Nevertheless, zsh completion for restart
is made to behave more-or-less the same as bash completion.
At least sockets can be restarted.
macro: make sure ALIGN() can be calculated constant by the compiler
If we pass a constant value to ALIGN() gcc should have the chance to
calculate the value during compilation rather than runtime, so let's
avoid a static inline call if we can.
It is faster to use a bash built-in, then to invoke an external
program. The problem of unit names starting with a dash is solved
by prepending a space. Spaces are ignored anyway.
For zsh, replace echo "$unit", which is vulnerable to dashes,
with echo " $unit".
systemctl: ellipsize job list only when necessary, highlight running
I was debugging systemd waiting on a missing disk, and noticed
that the job listing could use some polishing. Jobs that are
actually running are highlighted, so it's easier to see what
very actually waiting for.
Also, the needed widths are precalculated, to use available columns
more ecomically.
There were old session state files accumulating in /run/systemd/session.
They confused e.g. "reboot", which thought there were still users logged
in. The files got created like this:
session_stop(Session *s) ->
...
unlink(s->state_file);
...
seat_set_active(s->seat, NULL) ->
session_save(...); /* re-creates the state file we just
unlinked */
Fix it simply by clearing the s->started flag earlier to prevent
any further writes of the state file (session_save() checks the flag).
As it turns out if you pass a va_list to a function its state becomes
undefined after that function returns, and this actually does break on
x86-32.
Hence, let's reimplement message_read_ap() without the use of recursion.
Instead we now build our own stack of types in an array so that we can
decode the entire parameter list in a single stackframe.
Make "systemd-analyze dot" output only lines with units matching
given glob(7) patterns. Add --from-pattern and --to-pattern options.
Without any patterns all relationships are printed as before.
A relationship must match the follwing expression:
where from[] and to[] are lists of patterns provided with subsequent
--from-pattern and --to-pattern respectively. P[] is a list of additional
patterns provided after the "dot" subcommand.
Avoid "sender uid=65534, message ignored" case, where no credentials can
be read on the sender side.
Seems, the server socket does not enable credential receiving fast
enough, and the message from the client (without credential) sometimes
is queued before the credential passing was active.
journald: Do not always record _AUDIT_SESSION and _AUDIT_LOGINUID
When systemd was compiled without audit support, do not collect the
audit session and loginuid in the journal. This is saving a couple of
syscalls and memory allocations per log message.
util: Avoid memory allocations for formatting paths
Avoid memory allocations to construct the path for files in the
procfs. The procfs paths are way shorter than the PATH_MAX so we
can use snprintf on a string located on the stack. This shows up
as a win on x86 using the benchmark program below.
Harald Hoyer [Mon, 8 Apr 2013 12:05:24 +0000 (14:05 +0200)]
Do not serialize environment, when switching root
When switching root, i.e. LANG can be set to the locale of the initramfs
or "C", if it was unset. When systemd deserializes LANG in the real root
this would overwrite the setting previously gathered by locale_set().
To reproduce, boot with an initramfs without locale.conf or change
/etc/locale.conf to a different language than the initramfs and check a
daemon started by systemd:
$ tr "$\000" '\n' </proc/$(pidof sshd)/environ | grep LANG
LANG=C
To prevent that, serialization of environment variables is skipped, when
serializing for switching root.
Simon McVittie [Fri, 5 Apr 2013 12:35:22 +0000 (13:35 +0100)]
sd-daemon.c: allow use of -lrt to be avoided
In recent glibc, many commonly-used librt functions have moved
from librt to libc. This results in dbus' configure.ac
concluding that we don't need to link in librt. However,
sd-daemon.c needs it for mq_getattr(), causing the build
to fail.
dbus doesn't use POSIX message queues, so I'd prefer to be
able to avoid "if on Linux, link librt for sd-daemon.c".
projects / thirdparty / systemd.git / log
