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Introduce a proper enum, and don't pass around string ids anymore. This
simplifies things quite a bit, and makes virtualization detection more
similar to architecture detection.
The latest consolidation cleanup of write_string_file() revealed some users
of that helper which should have used write_string_file_no_create() in the
past but didn't. Basically, all existing users that write to files in /sys
and /proc should not expect to write to a file which is not yet existant.
Merge write_string_file(), write_string_file_no_create() and
write_string_file_atomic() into write_string_file() and provide a flags mask
that allows combinations of atomic writing, newline appending and automatic
file creation. Change all users accordingly.
Also, when the child is potentially long-running make sure to set a
death signal.
Also, ignore the result of the reset operations explicitly by casting
them to (void).
This undoes part of 8931278c8a.
We really should stick to kernel-style "int" return values from
functions, and not covnert success into boolean returns.
If we don't check the error of the child process, systemd-vconsole-setup
would exit with 0 even if it could not really setup the console.
For a simple test, move loadkeys elsewhere and execute
systemd-vconsole-setup:
[root@localhost ~]# strace -f -e execve /usr/lib/systemd/systemd-vconsole-setup
execve("/usr/lib/systemd/systemd-vconsole-setup", ["/usr/lib/systemd/systemd-vconsol"...], [/* 15 vars */]) = 0
Process 171 attached
[pid 171] execve("/usr/bin/loadkeys", ["/usr/bin/loadkeys", "-q", "-C", "/dev/tty0", "br-abnt2"], [/* 15 vars */]) = -1 ENOENT (No such file or directory)
[pid 171] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=171, si_uid=0, si_status=1, si_utime=0, si_stime=0} ---
+++ exited with 0 +++
Note that loadkeys returned 1 while systemd-vconsole-setup return 0.
Since the font and keyboard setup are already serialized, refactor the
code a little bit so the functions do the wait by themselves. One change
in behavior in this patch is that we don't return early, but we do try
to setup the keyboard even if the font load failed.
I observe that upon loading of framebuffer drivers, I do not get the
desired system font, but the kernel-level defaults (usually
lib/fonts/font_8x16.c, but your mileage may vary depending on kernel
config and boot options).
The fbcon driver may be loaded at a time way before the first
framebuffer device is active, such that the vconsole setup helper
runs too early.
The existing rule is non-fitting. The going live of the fbcon kernel
component does not indicate the proper time at which to load the
visuals, which really ought to be done when a new vtcon object comes
into existence. (The font table is a per-vtcon property.)
This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
loop_write() didn't follow the usual systemd rules and returned status
partially in errno and required extensive checks from callers. Some of
the callers dealt with this properly, but many did not, treating
partial writes as successful. Simplify things by conforming to usual rules.
If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.
Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'
Plus some whitespace, linewrap, and indent adjustments.
As a followup to 086891e5c1 "log: add an "error" parameter to all
low-level logging calls and intrdouce log_error_errno() as log calls
that take error numbers", use sed to convert the simple cases to use
the new macros:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\("(.*)%s"(.*), strerror\(-([a-zA-Z_]+)\)\);/log_\1_errno(-\4, "\2%m"\3);/'
Multi-line log_*() invocations are not covered.
And we also should add log_unit_*_errno().
safe_close() automatically becomes a NOP when a negative fd is passed,
and returns -1 unconditionally. This makes it easy to write lines like
this:
fd = safe_close(fd);
Which will close an fd if it is open, and reset the fd variable
correctly.
By making use of this new scheme we can drop a > 200 lines of code that
was required to test for non-negative fds or to reset the closed fd
variable afterwards.
Before, we would initialize many fields twice: first
by filling the structure with zeros, and then a second
time with the real values. We can let the compiler do
the job for us, avoiding one copy.
A downside of this patch is that text gets slightly
bigger. This is because all zero() calls are effectively
inlined:
$ size build/.libs/systemd
text data bss dec hex filename
before 897737 107300 2560 1007597 f5fed build/.libs/systemd
after 897873 107300 2560 1007733 f6075 build/.libs/systemd
… actually less than 1‰.
A few asserts that the parameter is not null had to be removed. I
don't think this changes much, because first, it is quite unlikely
for the assert to fail, and second, an immediate SEGV is almost as
good as an assert.
Skipping the parsing of /etc/vconsole.conf just because some values were
already assigned from the cmdline never made sense. And by the way, commit
f73141d changed the return values of parse_env_file() - it now gives 0
on success. Which means in current HEAD /etc/vconsole.conf overrides the
cmdline, which is the reverse of what's expected.
We need to parse /etc/vconsole.conf first and then let vconsole.*
overrides from cmdline take effect. The behaviour is documented in
vconsole.conf(5).
https://bugzilla.redhat.com/show_bug.cgi?id=948750
This simplifies the upstream system code quite a bit. If downstream distributions want to maintain compatibility with their old configuration files, they are welcome to do so, but need to maintain this as patches downstream. The burden needs to be on the distributions to maintain differences here. Our suggestion however is to just convert the old configuration files on upgrade, as multiple distributions already do.
No longer override the default kernel keymap if nothing is specified in
vconsole.conf.
The default should be to do nothing (i.e., use what is already in the
kernel) unless the distro/admin has explicitly requested it.
No longer override the default kernel font if nothing is specified in
vconsole.conf.
The default kernel font[0] provides ISO-8859-1 and box characters. Users
of Arabic, Cyrilic or Hebrew must set a different font manually as these
character sets were provided by the old default font [1], but are not
any longer.
Rationale:
* it is counter-intuitive that an empty vconsole.conf file is different
from adding FONT="";
* the version of the default font shipped with Arch (which is the
upstream one) behaves very badly during early boot[2] (which should
admittedly be fixed in the font itself);
* the kernel already supplies a default font, it seems reasonable to
use that unless anything else is specified;
* This also avoids a needless slow call to setfont; and
* We don't want to work around problems in the kernel (in case the
compiled-in font is not acceptable for whatever reason).
[0]: <https://dev.archlinux.org/~tomegun/kernel.bdf>
[1]: <https://dev.archlinux.org/~tomegun/latarcyrheb.bdf>
[2]: <http://i.imgur.com/J2tM4.jpg>
also a number of minor fixups and bug fixes: spelling, oom errors
that didn't print errors, not properly forwarding error codes,
few more consistency issues, et cetera
The MeeGo distribution is still a supported distribution, but
will probably not see an updated version of systemd anymore.
Most of the development is focussing on Tizen now, and the
generic support for building --with-distro=other is more than
adequate enough.
This patch removes the support as a custom configuration build
target in systemd. People who are still building this for
the MeeGo distribution should build as "other" distro.
Rather than assuming the console is in utf-8 mode if nothing else is
specified, be a bit more robust and enable it explicitly.
This fixes a regression compared with Arch's initscripts when not
using a framebuffer as the old VGA console would not be in utf-8
mode by default.
Furthermore, this would allow vconsole-setup to be used after boot
to change the vconsole into utf-8 mode in case it has been set to
non-utf-8 mode for whatever reason. I.e, the following would leave
the console in utf-8 mode as expected:
# export LANG=en_US.ISO-8859-1
# /usr/lib/systemd/systemd-vconsole-setup
# export LANG=en_US.UTF-8
# /usr/lib/systemd/systemd-vconsole-setup
Reported-by: Xyne <xyne@archlinx.ca>
Reported-by: Thomas Bächler <thomas@archlinux.org>
Cc: Dave Reisner <dreisner@archlinux.org>
We finally got the OK from all contributors with non-trivial commits to
relicense systemd from GPL2+ to LGPL2.1+.
Some udev bits continue to be GPL2+ for now, but we are looking into
relicensing them too, to allow free copy/paste of all code within
systemd.
The bits that used to be MIT continue to be MIT.
The big benefit of the relicensing is that closed source code may now
link against libsystemd-login.so and friends.
