The ld.gold linker doesn't provide --format=default but needs --format=elf
instead. However, this doesn't work with ld.bfd. To avoid any linker
detection, we now link any binary file via partial-linking into a proper
object file itself and then link this object file in the final linking
step.
This also produces a fake libtool *.lo file so the libtool linking command
doesn't complain about PIC/non-PIC problems.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
The VT subsystem manages the virtual VTs and registers them with the
seat/session-scheduler. They manage control and legacy nodes as they are
mostly the same.
The different contexts create these VTs and assign them to cdev clients.
This allows us to split the VT and cdev logic apart so they can be
assigned freely to different clients.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
The ctx subsystem manages the CDEV devices for each seat. It currently
allocates one manager device and a given number of legacy devices that can
be accessed via subdirectories.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
This flag enables all other options that extend the build. It is used for
debugging only and should never be used by distributions to control what
is built. Hence, we don't document it and never advertise it.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
This introduces uvtd which replaces kmscon sessions as an external helper
program. It's still a dummy program but it will get extended soon. After
that, kmscon sessions will get removed and limited to a single seat. This
will simplify kmscon itself heavily and move rarely used features out of
kmscon into helpers.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
This moves githead.h to shl_githead.c so we can skip recompilations on
GIT-HEAD changes. We only need to relink now (which we cannot skip).
This speeds up build-processes considerably on slower machines.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
We want to avoid any static files that are shared between multiple
programs but are not part of SHL. These make the build-process just more
complex.
Move log.[ch] to SHL so we have a known context.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
ld automatically assumes that any binary input file requires an executable
stack. There's no way to tell it that it doesn't so we simply mark all
inputs as noexecstack.
Reported-by: Etam
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
UVT is based heavily on the old cdev-sessions. It uses CUSE/FUSE to
implement virtual terminals in user-space.
This move into a library allows to use it in other projects, too. There is
no reason to limit it to kmscon sessions. In fact, we will remove the
cdev-sessions, soon and make kmscon a stand-alone terminal emulator
without any session capability.
Instead, the uvtd program will provide the VT emulation.
This library is not finished, nor ready for use. However, feel free to
contribute patches so we can eventually release a stable API.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Instead of using the blown up UTERM_FORMAT_GREY binary data, we now use an
A1 1bit alpha channel and extract the data during runtime. This guarantees
that only used characters will be extracted into the full alpha channel.
We should add support for A1 formats in uterm to avoid this problem
entirely.
We also now link the binary file directly into the module via ld. This
avoids the long compile times for the huge C-array that we previously
generated. As a side effect, you no longer run out of memory linking this
file on small machines.
With this change we could even start making unifont a default font-backend
as it now works pretty well.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Major overhaul of the build system. This introduces symbol-versioning for
all exported libraries. Please note that none of these libraries is
stable, yet!
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need the font layer to build wlterm. However, the font layer depends on
kmscon internal module handling so we cannot do this. To avoid this, we
simply provide dummy handlers for the kmscon_module_* layer and link it
anyway. This is kind of ugly but works, yey!
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This renames the video-drm backend to drm3d (which was already used
internally). This is a pure rename, the code-logic stays the same.
This also puts the drm3d backend into a module so we can more easily
load it during runtime.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This moves all the drm-dumb code into a new module that is now called
drm2d (which was already used internally before).
No conceptual changes, just renames and moves.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is an experimental renderer based on pixman. It is only available for
testing-purposes and should not be used in production, yet. The bbulk
renderer is still the faster alternative and should be used instead.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The cairo text renderer uses the cairo blitting functions to blit all
glyphs into the cairo-surface. This is only for testing-purposes. Cairo is
not really suited for blending/blitting of large surfaces. Hence, this
backend is horribly slow compared to bblit/bbulk.
This backend is disabled by default.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The modesetting code of both DRM backends is almost the same so share it.
This also works around several race-conditions in some DRM drivers. In
particular, we cannot call drmModeSetCrtc while a drmModePageFlip is still
pending. Therefore, we wait for page-flips to complete before performing
an immediate mode-set.
This requires us to handle page-flip events synchronously so we can wait
for kernel page-flip events but the user-space bottom-half is executed in
an idle-handler.
Note that the chance that we have to wait for a page-flip to complete is
pretty small. In fact, without hacking the code to do fast page-flips, I
couldn't get kmscon to run into this condition.
Last but not least, this patch also makes the dumb-backend support
immediate page-flips like the DRM backend did all the time.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The dumb and drm backends use the same mode structure so share the code as
drm_shared module.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
This is the first step towards a uterm-fbdev module. It splits the huge
video file into a video backend and a render backend. A monitor backend
will follow later when a full uterm module infrastructure is available.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We will split the public uterm header soon to avoid big headers. Hence,
rename internal headers to *_internal.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We still have dead dependencies on libfont.la but don't build it anymore.
Remove the dependency as it is directly linked now.
Reported-by: Vladimir Kravets
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We removed this service unit earlier this week but the EXTRA_DIST variable
still mentions it. Remove it so kmscon builds cleanly again.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Similar to the font backends we now require one backend to be always
available as safe fallback. The bblit backend is the most basic backend so
make it mandatory and link it unconditionally.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Several parts of kmscon have huge external dependencies. However, we allow
them to be disabled during build-time. But this is not enough as it
requires distributions to choose which options to use. Therefore, we now
allow dynamicly loadable modules that can optionally be installed and
kmscon automatically picks them up.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We want to modularize the text-font library, so we need each backend as a
different library. This step links each of them into a different static
library so we can now link them either into the binary or into modules.
This step also makes 8x16 always compiled into the text-font backend so we
always have a working implementation even though no modules might be
loaded.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The man_fixup_aliases thingy was a horrible hack. Replace it with a
temporary .man_fixup file that saves compilation timestamps so we have
post-recipies for man-fixups.
Also fix some minor out-of-tree build problems.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need the git-revision for module-version checks so provide the
infrastructure now and print it in log_init().
Note that the git-describe string is distributed with the tarballs so
end-users will not have to generate it themself. But when building from
git, the revision will be automatically updated whenever something
changes.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We didn't set the dependencies correctly for uterm libraries as a
backslash was missing. Fix this typo.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We need to mark it as PHONY target as it has no corresponding source file.
It's unlikely that it causes problems, but lets be safe.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of implementing our own thread-safe backend-storage, we now use
the generic shl-registry object.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of implementing a thread-safe backend-system we can now use the
new shl-registry storage module.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
