There are three conditionalizations in the status quo ante function,
which kinda indicates this should not be the same function in the first
place. Hence split this up, simplify it, and have two distinct functions
without conditionalizations.
It's only used from sd-journal.c, and we soon would like to pass in an
sd_journal object, hence let's move this over.
This only moves code, doesn't change behaviour
An rpminspect test in Fedora/RHEL is flagging our stub files as having an
executable stack. The check is correct:
$ readelf --wide --program-headers build/src/boot/efi/linuxx64.elf.stub | rg -i stack
GNU_STACK 0x000000 0x0000000000000000 0x0000000000000000 0x000000 0x000000 RWE 0x10
It seems to be just an omission in the linker script… None of the objects that
are linked into the stub are marked as requiring an executable stack:
$ readelf --wide --sections build/src/boot/efi/*.c.o \
/usr/lib/gnuefi/x64/libgnuefi.a \
/usr/lib/gnuefi/x64/libefi.a \
/usr/lib/gcc/x86_64-redhat-linux/12/libgcc.a \
| rg '.note.GNU-stack.*X'
(nothing)
On aarch64 we end up with a nonexecutable stack, but on ia32 and x64 we get one,
so this might be just a matter of defaults in the linker. It doesn't matter
greatly, but let's mark the stack as non-executable to avoid the warning.
Note: '-Wl,-z' is not needed, things work with just '-z'.
Before this commit, battery_is_low() returns
true if there's no battery on the system.
It's now modified to check if the system is
on AC power first, and returns false early
if that's the case.
Fixes#26492
We already have this nice code in system that determines the block
device backing the root file system, but it's only used internally in
systemd-gpt-generator. Let's make this more accessible and expose it
directly in bootctl.
It doesn't fit immediately into the topic of bootctl, but I think it's
close enough and behaves very similar to the existing "bootctl
--print-boot-path" and "--print-esp-path" tools.
If --print-root-device (or -R) is specified once, will show the block device
backing the root fs, and if specified twice (probably easier: -RR) it
will show the whole block device that block device belongs to in case it
is a partition block device.
Suggested use:
# cfdisk `bootctl -RR`
To get access to the partition table, behind the OS install, for
whatever it might be.
