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This commit introduces a build-time option to enable/disable sysupdated
separately from sysupdate. 'auto' translated to enabled by default in
developer builds.
The default definition to add is `-D__loongarch64__`, which is not searched in [bpf_tracing.h](09b9e83102/src/bpf_tracing.h (L68))
This may avoid `error: Must specify a BPF target arch via __TARGET_ARCH_xxx` in loongarch64
Signed-off-by: Zhou Qiankang <wszqkzqk@qq.com>
IPE is a new LSM being introduced in 6.12. Like IMA, it works based on a
policy file that has to be loaded at boot, the earlier the better. So
like IMA, if such a policy is present, load it and activate it.
If there are any .p7b files in /etc/ipe/, load them as policies.
The files have to be inline signed in DER format as per IPE documentation.
For more information on the details of IPE:
https://microsoft.github.io/ipe/
For compiling bpf code, the system include directory needs to be
constructed. On Debian-like systems, this requires passing a multiarch
directory. Since clang's -dump-machine prints something other that the
multiarch triplet, gcc was interrogated earlier, but that also yields a
wrong result for cross compilation and was thus skipped resulting in
clang not finding asm/types.h.
Rather than, -dump-machine we should ask for -print-multiarch (which
rarely differs). Whenever gcc is in use, this is right (even for cross
building). Since clang does not support -print-multiarch and its
-dump-machine never matches Debian's multiarch, we resort to asking gcc
when building natively. For cross builds using clang, we are out of
luck.
Let's make use of libcryptsetup's new crypt_token_set_external_path()
API in place of the interposition stuff we have been doing before. Let's
kill it entirely, given that this was a developer feature only anyway
(and guarded by an appropriate ifdef).
Fixes: #30098
We currently search for 'bpf-gcc' and 'bpf-none-gcc'. Gentoo's
sys-devel/bpf-toolchain package uses 'bpf-unknown-none-gcc', as does Fedora's
cross-binutils. Search for this name too.
Let's explicitly pass the value to -fstrict-flex-arrays. This does
not change behavior but it does (selfishly) make my error not bug
out with an error saying -fstrict-flex-arrays does not exist.
When building packages of arbitrary commits of systemd-stable,
distributors might want to include a git sha of the exact commit
they're on. Let's extend vcs-tag a little to make this possible.
If we're on a commit matching a tag, don't generate a git sha at all.
If we're not on a commit matching a tag, generate a vcs tag as usually.
However, if we're not in developer mode, don't append a '^' if the tree
is dirty to accomodate package builds applying various patches to the
tree which shouldn't be considered as "dirty" edits.
If building with clang and clang does not support bpf, then enabling
-Dbpf-framework=enabled would silently drop the feature (even printing
bpf-framework: enabled in the meson build recap, and no message anywhere
that'd hint at the failure!)
This is unexpected, so add check to fail hard in this case.
All other code paths (gcc, missing bpftool) properly check for the
option, but it is not as easy for a custom command so check explicitly
Let's document in detail how to build the integration test image and run
the integration tests without building systemd. To streamline the process,
we stop automatically using binaries from build/ when invoking mkosi directly
and don't automatically use a tools tree anymore if systemd on the host is too
old. Instead, we document these options in HACKING.md and change the mkosi meson
target to automatically use the current build directory as an extra binary search
path for mkosi.
It's time. sd-json was already done earlier in this cycle, let's now
make sd-varlink public too.
This is mostly just a search/replace job of epical proportions.
I left some functions internal (mostly IDL handling), and I turned some
static inline calls into regular calls.
Follow up for 8b3b01c4b7
We switch to PROJECT_VERSION instead of PROJECT_VERSION_FULL where
we report our version and which is likely being parsed to avoid
breaking compat. If we didn't, the output would change from systemd
255 to systemd 255.1 which could break various tools.
Our variables for internal libraries are named 'libfoo' for the shared lib
variant, and 'libfoo_static' for the static lib variant. The only exception was
libbasic, because we didn't have a shared variant for it. But let's rename it
for consitency. This makes the build config easier to understand.
These are required by the bpf_tracing.h header in libbpf, see
https://github.com/libbpf/libbpf/blob/master/src/bpf_tracing.h.
bpf_tracing.h does have a few fallbacks in case __TARGET_ARCH_XXX
is not defined but recommends using the __TARGET_ARCH macros instead
so let's do that.
nscd is known to be racy [1] and it was already deprecated and later dropped in
Fedora a while back [1,2]. We don't need to support obsolete stuff in systemd,
and the cache in systemd-resolved provides a better solution anyway.
We announced the plan to drop nscd in d44934f378.
[1] https://fedoraproject.org/wiki/Changes/DeprecateNSCD
[2] https://fedoraproject.org/wiki/Changes/RemoveNSCD
The option is kept as a stub without any effect to make the transition easier.
In mkosi.images/system/mkosi.conf, we configure the certificate as
an extra tree so it's available inside the image. However, we pick up
the certificate from the top level repository directory and not from the
build directory where it is generated by the genkey meson target.
We currently have no way to access the build directory that mkosi was
invoked from when parsing the configuration file. Thus we have no way to
specify the correct location to the certificate when it's located in the
build directory.
For now, let's look for the key and certificate in the top level repository
root directory and drop the genkey target.
We don't have to change the Github Actions CI because it already runs genkey
manually before the image build (which is something we forgot to remove when
introducing the genkey target and is the reason this didn't cause issues before).
The kernel's sched_setattr interface allows for more control over a processes
scheduling attributes as the previously used sched_setscheduler interface.
Using sched_setattr is also the prerequisite for support of utilization
clamping (UCLAMP [1], see #26705) and allows to set sched_runtime. The latter,
sched_runtime, will probably become a relevant scheduling parameter of the
EEVDF scheduler [2, 3], and therefore will not only apply to processes
scheduled via SCHED_DEADLINE, but also for processes scheduled via
SCHED_OTHER/SCHED_BATCH (i.e., most processes).
1: https://docs.kernel.org/next/scheduler/sched-util-clamp.html
2: https://lwn.net/Articles/969062/
3: https://lwn.net/ml/linux-kernel/20240405110010.934104715@infradead.org/
During cross-compilation of systemd, the compiler used to build the bpf's needs
to be pointed at the correct include searchpath. Which can be done by passing
the corresponding directory in through the cflags; for example in yocto/bitbake
this would work: CFLAGS += "--sysroot=${STAGING_DIR_TARGET}"
Signed-off-by: Johannes Schneider <johannes.schneider@leica-geosystems.com>
This is preparation for making our Varlink API a public API. Since our
Varlink API is built on top of our JSON API we need to make that public
first (it's a nice API, but JSON APIs there are already enough, this is
purely about the Varlink angle).
I made most of the json.h APIs public, and just placed them in
sd-json.h. Sometimes I wasn't so sure however, since the underlying data
structures would have to be made public too. If in doubt I didn#t risk
it, and moved the relevant API to src/libsystemd/sd-json/json-util.h
instead (without any sd_* symbol prefixes).
This is mostly a giant search/replace patch.
On distros like SUSE where ssh config dropins in /usr are supported, there's no
need for a symlink in /etc/ssh/ssh_config.d/ that points to the dropin
installed somewhere in /usr (that is not reachable by ssh).
We want to avoid reinitialization of our global variables with static
storage duration in case we get dlopened multiple times by the same
application. This will avoid potential resource leaks that could have
happened otherwise (e.g. leaking journal socket fd).
Use 'recommended' priority for the default compression library, to
indicate that it should be prioritized over the other ones, as it
will be used to compress journals/core files.
Also use 'recommended' for kmod, as systems will likely fail to boot
if it's missing from the initrd.
Use 'suggested' for everything else.
There is one dlopen'ed TPM library that has the name generated
at runtime (depending on the driver), so that cannot be added, as it
needs to be known at build time.
Also when we support multiple ABI versions list them all, as for the
same reason we cannot know which one will be used at build time.
$ dlopen-notes.py build/libsystemd.so.0.39.0 build/src/shared/libsystemd-shared-256.so
libarchive.so.13 suggested
libbpf.so.0 suggested
libbpf.so.1 suggested
libcryptsetup.so.12 suggested
libdw.so.1 suggested
libelf.so.1 suggested
libfido2.so.1 suggested
libgcrypt.so.20 suggested
libidn2.so.0 suggested
libip4tc.so.2 suggested
libkmod.so.2 recommended
liblz4.so.1 suggested
liblzma.so.5 suggested
libp11-kit.so.0 suggested
libpcre2-8.so.0 suggested
libpwquality.so.1 suggested
libqrencode.so.3 suggested
libqrencode.so.4 suggested
libtss2-esys.so.0 suggested
libtss2-mu.so.0 suggested
libtss2-rc.so.0 suggested
libzstd.so.1 recommended
Co-authored-by: Luca Boccassi <bluca@debian.org>
If we set it to '0' if integration tests are not enabled then we can't
enable them from the command line since environment from meson takes
priority over environment variables from the command line.
We also rename the related variables to avoid conflicts with the
existing integration_tests variable.
The kernel headers match on __s390__ so the build fails
../src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.c:159:6: error: Must specify a BPF target arch via __TARGET_ARCH_xxx
void BPF_KPROBE(userns_restrict_free_user_ns, struct work_struct *work) {
^
/usr/include/bpf/bpf_tracing.h:817:20: note: expanded from macro 'BPF_KPROBE'
return ____##name(___bpf_kprobe_args(args)); \
^
/usr/include/bpf/bpf_tracing.h:797:41: note: expanded from macro '___bpf_kprobe_args'
^
/usr/include/bpf/bpf_helpers.h:195:29: note: expanded from macro '___bpf_apply'
^
note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
/usr/include/bpf/bpf_tracing.h:789:72: note: expanded from macro '___bpf_kprobe_args1'
^
/usr/include/bpf/bpf_tracing.h:563:29: note: expanded from macro 'PT_REGS_PARM1'
^
<scratch space>:125:6: note: expanded from here
GCC error "Must specify a BPF target arch via __TARGET_ARCH_xxx"
