For KVM the code is run pretty much natively on the host CPU, so all
CPU extensions available on the host CPU can be also used inside the VM.
To expose that information to the VM we should pass "-cpu host", so the
VM is aware of which CPU is in use.
For CPU emulation, QEMU uses a rather minimal CPU on x86_64 by default.
It does not have support for SSE3/4 etc, which may be required for some
applications to work properly (e.g. Android in Anbox). Add a --cpu flag
to make the emulated CPU configurable. Useful values are for example
--cpu max to emulate all implemented CPU features.
To test QEMU's CPU emulation it is useful to have a switch to disable
KVM, even when it is available (and potentially working fine).
Add --no-kvm for that purpose.
For some reason, the SDL display backend changes the video resolution
to 1024x768, while the GTK display keeps it at 640x480.
This is annoying, because at the moment we can only set one display
resolution for a device in postmarketOS (e.g. for the splash screen).
At the moment, the resolution for the splash screen is set to 640x480,
which therefore shows up too small with the default SDL display.
It seems like the display resolution can be only changed in the guest
directly. Linux has a video= kernel parameter that can be used to
implement this. (See: https://www.kernel.org/doc/html/latest/fb/modedb.html)
Let's set 1024x768 by default, but make it configurable through --video.
The QEMU 'tablet' input device reports absolute positions instead
of relative mouse pointer movements. This can be used to automatically
grab/release the mouse pointer when entering/leaving the QEMU window,
instead of having to release it with CTRL + ALT + G manually.
This is quite convenient and should be the default option normally,
but at least on my PC the mouse pointer is reported with some vertical
offset for some reason (you can't reach the top and it extends below
the QEMU window...). Let's add it as an optional --tablet option for now.
When using pmbootstrap, you usually select the device you want to work
on using 'pmbootstrap init', generate the rootfs and can then run more
commands in the context of the device.
The same needs to be done before using QEMU (to generate the rootfs).
But for some reason 'pmbootstrap qemu' requires setting the --arch
parameter when running QEMU for a foreign architecture, even when the
device is still selected in pmbootstrap.
Even more confusing is that setting "--arch arm" always selects
device-qemu-vexpress, but this is not immediately clear from the name.
Let's make this a lot more intuitive by making sure there is a QEMU
device selected when running 'pmbootstrap qemu'. We can then use the
device information to infer the architecture automatically.
At the moment, the --display argument is a bit complicated to use.
A common use would be to switch between the UIs (sdl, gtk, none)
or to enable the software rasterizer. Split the two use cases
to separate arguments to make it more intuitive.
mesa-dri-swrast and mesa-dri-virtio are both provided by mesa-dri-gallium
now, so this option does not have much use anymore. With both selections,
exactly the same packages are installed.
The SPICE UI option tends to be broken (see #1836), and even when it is
working, it is not working particularly well. QXL requires special handling
in our QEMU packages, when now virtio-gpu (virgl) is working quite well overall.
Apparently it is possible to use virgl with SPICE; but only when using
a Unix socket instead of a TCP port. That again is a bit complicated
because we run QEMU outside the chroot and the SPICE client within.
Overall it does no longer seem to be worth the effort.
The default QEMU UI is working just fine (for the purposes of testing
postmarketOS at least).
Add new "pmbootstrap status" command, which does a quick health check
for the work dir. As first health check, verify that the chroots are not
too old. Replace the reminder text at the end of "pmbootstrap init" to
tell users to run "pmbootstrap status" instead of "pmbootstrap zap" once
a day before working with pmbootstrap.
Related: #1829
While at it, also remove unnecessary "#!/usr/bin/env python3" in files
that only get imported, and adjust other empty/comment lines in the
beginnings of the files for consistency.
This makes files easier to read, and makes the pmbootstrap codebase more
consistent with the build.postmarketos.org codebase.
At the moment we have a simple subpkgdesc() function that can only
parse "pkgdesc" from subpackages, without support for any variables.
But we have a quite nice variable parser now that can be extended
to work for subpackages.
Simply put this works by:
- Finding the lines that belong to the subpackage function
- Stripping indentation (tab)
- Parsing relevant attributes similar to the apkbuild() function
The "subpackages" in the parsed APKBUILD are replaced by a dict
of subpkgname: {"pkgdesc": "...", "depends": "..."} which are
parsed from the subpackage function (if found).
This makes it possible to get the "depends" of a subpackage.
At the moment we parse all attributes, split them, and eventually
join them back together for variable replacement.
Replacing variables immediately after parsing (before splitting)
has several advantages:
- No need to handle different value types
(e.g. lists by joining them every time they are accessed)
- Variables like depends="$depends ..." are handled directly
by the variable parser
- APKBUILDs are shell scripts, so we match abuild more closely
if variables defined later do not affect previous attributes
Theoretically it is possible to reference variables before they are defined.
In the shell, these will simply be evaluated to an empty string.
In preparation of replacing variables immediately after parsing attributes,
these variables will be no longer replaced correctly.
We can simplify the code further, and avoid this problem by initializing
the dict with the default values, replacing them with the real values
from the APKBUILD.
This will also avoid a (somewhat unrelated) error in the bootimg test:
File "pmb/parse/_apkbuild.py", line 46, in replace_variable
apkbuild["pkgname"], match.group(0),
KeyError: 'pkgname'
The gist of this action is upgrading the specified aport to the latest
version. There are implementations for both stable packages (which check
via the release-monitoring.org API for new versions) and git packages
(which check the GitLab/GitHub API for new commits on the main branch).
There's also the possibility to pass --all, --all-stable & --all-git to
the action which either loops through all packages, or just stable or
git packages and upgrades them.
The --dry argument is also respected.
Note, that the implementation does update the variables pkgver, pkgrel
and _commit but it doesn't update the checksums because that would slow
down the process a lot, and is potentially undesirable.
asus-me176c has a Fastboot interface that can be used for flashing,
but in postmarketOS we do not use Android boot images for it.
This is because is it not very practical - the boot partition is
quite small and there is a (custom) EFI bootloader that can boot
directly from any other FAT32 partition.
At the moment the installation process is manual:
1. pmbootstrap install --split to have separated boot (FAT32)
and rootfs images
2. pmbootstrap export
3. Flash boot and rootfs images manually using Fastboot
The "fastboot-bootpart" flasher implements that process in a more
convenient way. When a device uses the "fastboot-bootpart" flasher:
- We generate --split images on "pmbootstrap install" by default.
(This can be disabled using --no-split instead.)
- pmbootstrap flasher flash_kernel flashes the raw boot partition
(not an Android boot image) using Fastboot, just like the rootfs.
There are some limitations that could be improved in the future:
- "fastboot-bootpart" is not offered in the device wizard.
I think it is special enough that no-one will be starting with it,
and the difference to normal "fastboot" might be confusing.
- Support "pmbootstrap flasher boot". asus-me176c does not support
"fastboot boot" properly, but theoretically we could still generate
Android boot images to use when booting an image directly.
- At the moment the boot partition image is not regenerated when
using "pmbootstrap flasher flash_kernel" (unlike when using Android
boot images). "pmbootstrap install" needs to be run manually first.
Create add_packages_add() function, so we don't need to write the three
lines for adding the "packages" argument to an action with proper
autocompletion.
Remove in favor of similar, but more visible "--no-install" option for
"pmbootstrap flasher" and "pmbootstrap export".
It seems that the option wasn't really used by anybody, so let's just
remove it without a deprication period. If dear reader thinks otherwise
after this is merged, and is not happy with "--no-install", please state
your reasoning in a new issue, so we can discuss it.
Related: !1863
At the moment, pmbootstrap updates the kernel and the initfs whenever
using the flasher or export. This is useful, but sometimes you just want
to boot exactly the same kernel several times. In that case, having to wait
several seconds for the (redundant) update to complete is quite annoying.
Add a --no-install option that allows skipping the kernel/initfs update.
At the moment, sparse images are generated if the device sets
deviceinfo_flash_sparse="true". But for testing purposes it can be
useful to specifically enable or disable the default behavior.
Add a --sparse and --no-sparse option that enables or disables
sparse image generation.
At the moment we assume that everyone running QEMU is either using
ALSA, or has the ALSA PulseAudio plugin configured on the host system.
(Since we run QEMU outside of the chroot at the moment, configuration
files are read from the host system instead of the chroot...)
Other distributions have much wider support for PulseAudio,
so not everyone will actually have the ALSA PulseAudio plugin configured.
In that case, it is better to use QEMU's PulseAudio backend since that
does not require any configuration. It also lets us drop the alsa-lib
fork, since that was only needed for loading the ALSA PulseAudio plugin.
In general, it seems difficult to detect which audio backend the user
wants to run (if any). Selecting the wrong one results in ugly warnings
when running QEMU. So let's not assume any by default, and add a
--audio option instead which accepts one of QEMU's audio backends
(alsa, pa or sdl).
Add a shortcut for "git pull --ff-only" in all repositories cloned by
pmbootstrap (currently pmaports and aports_upstream, new pmdevices
repository coming soon).
'pmbootstrap pull' will only update the repositories, if:
* they are on an officially supported branch (e.g. master)
* the history is not conflicting (fast-forward is possible)
* the git workdirs are clean
Otherwise it shows the user a descriptive message about what to do. The
list of supported branches is only "master" right now, and will be
extended in later commits, so we can have a stable branch for pmaports
based on Alpine's releases. More about that in the project direction
2020 issue.
Closes: #1858
When defining a new kernel subpackage with a "-" in it
(e.g. $pkgname-kernel-mainline-modem), then pmbootstrap is unable to
find the function that builds the subpackage:
ERROR: Could not find subpackage function, no line starts with 'kernel_mainline-modem() {'
This is because it assumes that a $pkgname-kernel-<name> subpackage
is built by a kernel_<name> function, but this does not have to be the case.
We should really respect the name of the subpackage function that
is specified when defining the subpackage, but unfortunately it is
stripped away in cut_off_function_names().
For now let's fix this by replacing "-" with "_", but ideally the
APKBUILD parser API should be refactored to expose the subpackage
function in the future.
Rust packaging is new and still a bit weird in Alpine and postmarketOS.
As of writing, we only have one package (squeekboard), and use cargo to
download the source of all dependencies at build time (several git
repositories!) and compile it. Usually, this is a no-go, but at least
until this is resolved properly, let's cache the downloads as suggested
in: https://doc.rust-lang.org/cargo/guide/cargo-home.html
Related: #1861
Adjust to new text that "file" outputs for ARM linux kernels:
"ARM OpenFirmware FORTH Dictionary..."
Make test_bootimg_kernel pass again, which was failing with:
AssertionError: assert 'heimdall-isorec' in 'File is not an Android ...
Properly ignore comments at the end of lines, instead of assuming that
all lines below belong to the attribute:
subpackages="$pkgname-dev" # $pkgname-lang
Fixes build.postmarketos.org#61, where pmbootstrap would assume that a
random package provides "make", just because the word "make" is written
somewhere below subpackages=" in the APKBUILD and it is parsed
incorrectly.
While at it, also support the ' character for quotations and detect if
a quotation for a value was started, but there is no end quotation sign
in the rest of the file.
I've added tests, and manually checked that this did not introduce any
parsing bugs for all the APKBUILDs in pmaports.git, by running
'pmbootstrap apkbuild_parse' with the old and new code, and diffing the
result.
postmarketOS/pmaports!700 adds a new "deviceinfo_bootimg_dtb_second"
option that places the DTB in the "second" area of the Android boot
image.
Attempt to detect this automatically by checking the extracted
second binary for the FDT magic (0xd00dfeed).
mkbootimg from osm0sis changed the filename of the dtb section in [1]
which breaks the detection of qcdt in pmbootstrap.
Fix this by adjusting the filename pmbootstrap checks to match the
unpackbootimg behavior.
[1] https://github.com/osm0sis/mkbootimg/commit/d8222a4d
Linking big libraries may take more than five minutes, so change the
default timeout to fifteen minutes to save users from frustration.
This is the same value that I'm using to build binary packages for the
repository.
Pushing directly to master without making a merge request, because this
is a trivial change.
The important part about this patch is the change for armhf, which
adjusts the hostspec to the one used by Alpine.
Fixes a part of postmarketOS/pmaports#363
This MR add the --fork-alpine argument to the pmboostrap aportgen
command, which downloads the APKBUILD and related files and copies them
into the pmaports/temp folder.
This allows for example for me to call the kconfig check function on the
.config file in my Linux tree: $ pmbootstrap kconfig check --file
.config and it reports me which kconfig options I need to enable.
Properly handle the following two cases in APKBUILDs:
* depends="$depends ..."
* depends="${depends} ..."
First I've attempted to refactor the parsing code to do this in a more
generic way. But I've realized that it would make more sense to retire
the python based APKBUILD parsing approach altogether and finally use a
shell script parser. Let's discuss this in #1801.
Add check for UEVENT_HELPER for kernels >= 4.0.0. Change LBDAF check to
be only required for kernels <5.2.0. Adjust the config format and
checking code to support such range specific checks.
Compare a version against a check string. This will be used in
"pmbootstrap kconfig check", to only require certain options if the
pkgver is in a specified range.