now it no longer hardcodes a check for whether the
project name is coreboot. this maintains the same
behaviour but will now work for other multi-tree
projects; in practise, the other multi-tree projects
did not use .gitmodules files anyway, but some of
them used config/submodules/ in our build system.
Signed-off-by: Leah Rowe <leah@libreboot.org>
it's also used from script/roms, in addition to trees
move these variables to a common file used everywhere
Signed-off-by: Leah Rowe <leah@libreboot.org>
certain code checks for build.list, to skip it, for
example in items()
we already use config/data/grub to store grub config data
that applied to all trees
create these directories too:
config/data/coreboot
config/data/u-boot
config/data/seabios
move the respective build.list files in here, and also
to config/data/grub
now multi-tree projects contain, per directory, just the
target.cfg file and the patches directory. this is much
cleaner, because some of the logic can be simplified more
Signed-off-by: Leah Rowe <leah@libreboot.org>
instead, check for the presence of target.cfg files
not in config/project/ but config/project/tree/
the way this check is done, it merely returns 1 if
config/project/*/target.cfg is detected, and returns
0 in all other cases, even if config/project/target.cfg
exists
that way, if the maintainer accidentally adds a
target.cfg in the main directory, the given multi-tree
project will not break
Signed-off-by: Leah Rowe <leah@libreboot.org>
this avoids writing the version/versiondate files as root.
this complements the previous fix, that avoided writing those
same files when running the dependencies command.
initial setup of the build system requires root, to run the
dependencies script, but otherwise the build system prevents
running as root for everything else, so we must avoid writing
the version/versiondate files as root.
that same avoidance is necessary when checking whether running
other commands as root; ironically, this check then prevented
running the build system at all!
the bug should be fully fixed now. i found this quite by accident
the other day, when testing something else.
good thing this got fixed because the release!
Signed-off-by: Leah Rowe <leah@libreboot.org>
do it strategically, in just the right place so that the
version and versiondate files aren't written.
otherwise, version/versiondate are written as root and
the build system becomes unusable after that, unless you
reset the file ownerships from root. hardly user-friendly.
mitigate this bug.
Signed-off-by: Leah Rowe <leah@libreboot.org>
it imports the same environmental variable fix because
i had the same buggy TMPDIR check there. i fixed that
upstream in untitled.
import the new untitled revision.
Signed-off-by: Leah Rowe <leah@libreboot.org>
already of saying "found", say "already exists"
this means the output of these commands more user
friendly and intuitive:
./update trees -b grub default
./update trees -b coreboot i945
this is just an example. when an ELF file already
exists, the build is skipped even if src isn't downloaded.
this design is intentional, because it means that you can
use previous builds if you want to save time on another.
Signed-off-by: Leah Rowe <leah@libreboot.org>
adding help again is a bad idea. code should never
document itself; that's what documentation is for.
so, make the code do a better job telling the user
where to find documentation.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Re-add xHCI only on haswell and broadwell machines, where
they are needed. Otherwise, keep the same GRUB code.
The xHCI patches were removed because they caused issues
on Sandybridge-based Dell Latitude laptops. See:
https://codeberg.org/libreboot/lbmk/issues/216
The issue was not reported elsewhere, including on the
Haswell/Broadwell hardware where they are needed, but the
build system could only build one version of GRUB.
The older machines do not need xHCI patches, because they
either do not have xHCI patches, or work (in GRUB) because
they're in EHCI mode when running the payload.
So, the problem is that we need the xHCI patches for GRUB
on Haswell/Broadwell hardware, but the patches break
Sandybridge hardware, and we only had the one build of GRUB.
To mitigate this problem, the build system now supports
building multiple revisions of GRUB, with different patches,
and each given coreboot target can say which GRUB tree to use
by setting this in target.cfg:
grubtree="xhci"
In the above example, the "xhci" tree would be used. Some
generic GRUB config has been moved to config/data/grub/
and config/grub/ now looks like config/coreboot/ - also,
the grub.cfg file (named "payload" in each tree) is copied
to the GRUB source tree as ".config", then added to GRUB's
memdisk in the same way, as grub.cfg.
Several other design changes had to be made because of this:
* grub.cfg in memdisk no longer automatically jumps to one
in CBFS, but now shows a menuentry for it if available
* Certain commands in script/trees are disabled for GRUB,
such as *config make commands.
* gnulib is now defined in config/submodule/grub/, instead
of config/git/grub - and this mitigates an existing bug
where downloading gnulib first would make grub no longer
possible to download in lbmk.
The coreboot option CONFIG_FINALIZE_USB_ROUTE_XHCI has been
re-enabled on: Dell OptiPlex 9020 MT, Dell OptiPlex 9020 SFF,
Lenovo ThinkPad T440p and Lenovo ThinkPad W541 - now USB should
work again in GRUB.
The GRUB payload has been re-enabled on HP EliteBook 820 G2.
This change will enable per-board GRUB optimisation in the
future. For example, we hardcode what partitions and LVMs
GRUB scans because * is slow on ICH7-based machines, due
to GRUB's design. On other machines, * is reasonably fast,
for automatically enumerating the list of devices for boot.
Use of * (and other wildcards) could enable our GRUB payload
to automatically boot more distros, with minimal fuss. This
can be done at a later date, in subsequent revisions.
Signed-off-by: Leah Rowe <leah@libreboot.org>
it doesn't build, at present, but isn't used by any
coreboot targets, so the build issue does not come up
during release builds, but i did find it laying around
during my audits.
x86 qemu is on todo for libreboot, on all x86 boards,
but the current config is broken, so: remove it.
it's very much a requirement that anything in lbmk should
work.
Signed-off-by: Leah Rowe <leah@libreboot.org>
it's very unlikely that someone would use this
directory name nowadays, and i had half a mind
to remove it altogether
Signed-off-by: Leah Rowe <leah@libreboot.org>
in practise, the machines we support don't have
the option of including so many disks; 8 seems like
the most reasonable default. additionally, it's
unreasonable to expect *20 partitions*
this hardcoding is done to avoid using *, which is
slow in grub on some machines (the grub kernel always
re-enumerates the devices during every operation,
without caching any of it)
yet, the hardcoding is also slow; balance it a bit
better by searching fewer permutations, but not so few
that it would likely break a lot of setups
Signed-off-by: Leah Rowe <leah@libreboot.org>
we already supported syslinux but not grub
support grub by scanning for the most common paths,
based on the most popular distros
we don't hardcode this with * because it slows down
the boot, and in practise many distros still use the
same grub.cfg location as in BIOS systems (the EFI
one is often just a link to the BIOS one)
Signed-off-by: Leah Rowe <leah@libreboot.org>
this is a relic from the old days when we didn't
automated the grub.cfg logic as much. these days,
the grub.cfg logic is able to boot almost all distros
without any manual intervention or override.
removing these entries will speed up the boot in general
Signed-off-by: Leah Rowe <leah@libreboot.org>
the path "/boot/EFI" is unnecessary because the ESP
is always a FAT32 partition, so we don't need to
scan it as a subdirectory within a subdirectory.
the ESP is always mounted as its own partition,
FAT32, and EFI/ is always at the root of it
Signed-off-by: Leah Rowe <leah@libreboot.org>
the esp is always a fat32 partition so this makes no sensgrub.cfg: don't scan EFI on btrfs subvols
the esp is always a fat32 partition so this makes no sense
Signed-off-by: Leah Rowe <leah@libreboot.org>
the reason for it is because sometimes the coreboot build
system auto-downloads submodules which we don't want.
however, we now pass UPDATED_SUBMODULES=1 in make, which
disables this behaviour in coreboot's build system.
therefore, remove this unnecessary logic.
Signed-off-by: Leah Rowe <leah@libreboot.org>
cbmk revision:
cdce8ba70b863ea3fe0ad7a4d7b27d0c5ca30421
as of date 30 May 2024
Canoeboot provides deblobbing, fully, on all sources, so
as to provide a GNU FSDG compliant coreboot distro.
Libreboot used to do this but now uses a more pragmatic
Binary Blob Reduction Policy, allowing better hardware
support in general. See:
https://libreboot.org/news/policy.html
Well! We sometimes still need to delete files in Libreboot,
but for other reasons. For example, the poorly licensed
strlcat.c file that we delete from U-Boot, in both projects.
I currently hardcode such deletions in lbmk. After this
revision, I will start using "nuke.list" files as in cbmk.
Simply patching the sources to exclude such files, in this
context, is not OK because then we are still including them
but as diffs. This is why the nuke() function exists.
Import Canoeboot's nuke technology.
Signed-off-by: Leah Rowe <leah@libreboot.org>
these laptops do not officially have nvme slots on them,
but there is an ngff wifi slot which is PCI-E x1, and you
can use a special adapter on it to run nvme ssds.
total throughput is retarded by the x1 PCI-E configuration,
but it's still faster than a sata ssd (nvmes are x4 PCI-E).
support it in grub_scan_disk on the off chance that some
users may make use of this. it should work just fine.
Signed-off-by: Leah Rowe <leah@libreboot.org>
We use a path of /dev/null pointing to a ROM for
Fam15h AMD boards, to add fake PIKE2008 images.
This is to mitigate a hang in SeaBIOS, but now with
recent changes, this causes the command below to
download coreboot, when it should just exit saying
no vendor files needed. Prevent accidentally wasted
bandwidth. The command was:
./vendor download kcma_d8_rdimm_16mb
This now correctly does the following:
$ ./vendor download kcma_d8_rdimm_16mb
Vendor files not needed for: kcma_d8_rdimm_16mb
The joys of programming a build system in sh!
Signed-off-by: Leah Rowe <leah@libreboot.org>
Command: ./vendor download kcma-d8-rdimm_16mb
Output was:
include/lib.sh: line 115: kcma-d8-rdimm=config/vendor: No such file or directory
That will have to be audited later on, but the recent
more stringent error checking in vendor.sh triggered
this previously untriggered error message. The error
was in fact already occuring before, silently.
Anyway, mitigate by renaming all coreboot targets so
that they do not contain hyphens in the name. This
should avoid triggering errors in that eval command,
on line 115 in lib.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
By default, the build system does set -u -e
Some errors are unavoidable and have to be handled, so
we have to set +u +e (turn off error handling in sh),
when downloading vendor files, but only certain parts of
vendor.sh trigger errors (which cause an exit).
Replace the current bazooka approach with a more fine
grained approach, turning error handling back on again
when it is safe to do so.
In the parts of the code where it is disabled, the code
is written very, very carefully, with errors still handled
manually, but more careful auditing is required.
This change has been tested and makes the command much
safer to run. In security (or any bug auditing), it is
the principle of least privilege that holds true.
Signed-off-by: Leah Rowe <leah@libreboot.org>
e.g. coreboot/default contains no config directory, so
the old logic would be trying to do:
.
which is obviously invalid
now for example:
$ ./vendor download default
Vendor files not needed for: default
and it will exit with zero status
the only thing that should ever return non-zero status
is when you define a target that does not exist, config
or no.
Signed-off-by: Leah Rowe <leah@libreboot.org>
this effectively lets you change the boot order. example:
./build roms -s "nvme ata" t1650_12mb
the above example would set:
grub_scan_disk="nvme ata"
another example:
./build roms -s nvme t1650_12mb
this would set:
grub_scan_disk="nvme"
this overrides what's set in target.cfg for the given
target. useful for quick reconfiguration if building
from source
Signed-off-by: Leah Rowe <leah@libreboot.org>
replace variables ahcidev/atadev/nvmedev with a single
one named bootdev
the for loop goes through grub_scan_disk, so now it is
effectively a bootorder configuration
Signed-off-by: Leah Rowe <leah@libreboot.org>
i already do this on crossgcc, but overlooked it on regular
builds where i just use -j, but coreboot's build system
makes use of the CPUS= option in make
use XBMK_THREADS for this
Signed-off-by: Leah Rowe <leah@libreboot.org>
it has always been gpl 3 or later, but it helps to have
the license declaration within the file
there's a copying file anyway. put spdx in the config
Signed-off-by: Leah Rowe <leah@libreboot.org>
Leah Rowe