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Man page generation is generally very slow. I prefer to use -Dman=false when
developing systemd, and only build specific pages when introducing changes.
Those two little helper tools make it easy:
$ build/man/man systemd.link
$ build/man/html systemd.link
will show systemd.link.8 and systemd.link.html from the build directory build/.
Unfortunately the warning must be known, or otherwise the pragma generates a
warning or an error. So let's do a meson check for it.
Is it worth doing this to silence the warning? I think so, because apparently
the warning was already emitted by gcc-8.1, and with the recent push in gcc to
catch more such cases, we'll most likely only get more of those.
Same motivation as in other places: let's use a single logic to parse this.
Use path_equal() to compare the path.
A bug in error handling is fixed: if we failed after the GREEDY_REALLOC but
before the line that sets the last item to NULL, we would jump to
_cleanup_strv_free_ with the strv unterminated. Let's use GREEDY_REALLOC0
to avoid the issue.
Ld's man page says the following:
-u symbol
--undefined=symbol
Force symbol to be entered in the output file as an undefined symbol. Doing
this may, for example, trigger linking of additional modules from standard
libraries. -u may be repeated with different option arguments to enter
additional undefined symbols. This option is equivalent to the "EXTERN"
linker script command.
If this option is being used to force additional modules to be pulled into
the link, and if it is an error for the symbol to remain undefined, then the
option --require-defined should be used instead.
This would imply that it always requires an argument, which this does not
pass. Thus it will grab the next argument on the command line as its
argument. Before it took one of the many -lrt args (presumably) and now it
grabs something other random linker argument and things break.
[zj: this line was added in the first version of the meson configuration back
in 5c23128dab. AFAICT, this was a mistake. No
such flag appeared in Makefile.am at the time.]
https://github.com/mesonbuild/meson/issues/5113
With assertions disabled, we'd get a bunch of warnings that really bring no
value. With this change, a default meson build with -Db_ndebug=true generates
no warnings.
Due to this specific change: d0b6a10#diff-0203416587516c224c8fcfe8129e7caeR8,
systemd-nspawn uses libseccomp now if it is available. We we need to pass -I/usr/include
/libseccomp (or wherever seccomp.h is located) when compiling systemd-nspawn because
nspawn-settings.h does #include <seccomp.h>.
Fixes: #12060
Setting an access mode != 0666 is explicitly supported via -Dgroup-render-mode
In such a case, re-add the uaccess tag.
This is basically the same change that was done for /dev/kvm in
commit fa53e24130 and
ace5e3111c
and partially reverts the changes from
4e15a7343c
This avoids double compilation. Those files are tiny, so it doesn't save time,
but we avoid repeated warnings and errors, and it's generally cleaner to it
this way.
The number of commands in 'ninja -C build clean && ninja -C build' drops from
1462 to 1455 for me.
By defining rootprefix= we avoid a double slash in $systemdsystemunitdir and
other variables. This fixes a regression introduced in
1c2c7c6cb3 where the variables using rootprefix=/
would start with a double slash. This should be interpreted the same, but is
certainly ugly.
The rootprefix variable was added to systemd.pc in
1c2c7c6cb3, so there is no question of backwards
compatiblity. If people try to "override" the prefix and specify
--define-variable=rootprefix=/, they will get a double slash, which should be
OK, and is the same as --define-variable=rootprefix=/something/, which also
results in a double slash somewhere in the strings.
Let's move the shutdown binary into its own subdirectory in
src/shutdown, after all it is relatively isolated from the normal PID 1
sources, being a different binary and all.
Unfortunately it's not possible to move some of the code, since it is
shared with PID 1, that I wished we could move, but I still think it's
worth it.
Clang includes -W#warning in -Werror, so the #warning used for msan would
be an error.
v2:
- use -Wno-error=... so that the warning is still emitted, but not as an error.
Setting -fPIE globally can lead to miscompilations on certain
architectures.
This is caused by both -fPIE and -fPIC options being added to various
compilation commands. Only -fPIC is being recorded in the LTO options
section of the object. The gcc-8 LTO plugin merges -fPIC + -fPIE to
nothing. So, the compilations done by the plugin are not
position-independent and fail to link with -pie.
The simplest solution is to stop setting -fPIE globally and instead
using meson's b_pie=true option. This requires meson 0.49 or later.
Since we don't set this option in meson.build but leave it up to the
distro maintainer to set this option, do not bump the meson version
requirement.
Fixes: #10548
This reverts commit 0c2e93b863.
This should not be necessary anymore after previous commit.
I don't quite remember what sequence of steps was failing, but right now
"meson build -Dslow-tests=true && ninja -C build fuzzers" work fine.
This uses a {% for %} loop in Jekyll to render the page, from the "title"
information in the Front Matter of the actual page files.
This also makes `make-index-md` build rule unnecessary, since generation is
done by the template engine itself.
Tested this by running Jekyll locally.
