It is patch 2/2 of a series that provides a convenient way to specify
module search paths on a per-driver basis.
This entry proved to be useful in InputClass, so added it to OutputClass
as well. This allows to configure graphic drivers separately depending
on server layout names.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
It is patch 1/2 of a series that provides a convenient way to specify
module search paths on a per-driver basis.
This patch allows to set ModulePath for certain modules, in particular,
GPU drivers.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
Simplify DoSubstitution() by using xhostname(). Neither need to
care about OS specifics here, nor take care of zero-terminating the
hostname string - xhostname() is already doing this.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
It is patch 4/5 of a series that refactors matching input and output devices to classes and
extends possibilities to describe them, in particular, it allows use of regular expressions.
This patch introduces matching against a regular expression using regex library.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
It is patch 3/5 of a series that refactors matching input and output devices to classes and
extends possibilities to describe them, in particular, it allows use of regular expressions.
This patch defines a function MatchAddrToken that actually matches an attribute against
a list of pattern groups (in fact, Match... lines). It is used to check whether a particular
input/optput class should be applied to a device, thus replacing the tangled and difficult
to control code in InputClass.c and OutputClass.c.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
It is patch 2/5 of a series that refactors matching input and output devices to classes and
extends possibilities to describe them, in particular, it allows use of regular expressions.
This patch adds a function xf86createMatchGroup to build a pattern group from a string in
MatchProduct, MatchDevice or similar directives. It implements rudimentary logic ("or",
"and", and "not") to construct complex conditions for a device to an input/output class
to be applied based on the device attributes. Also xf86printMatchPattern is defined, which
is necessary to save an actual config file. Pattern groups are not used for matching yet,
the original functionality is preserved.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
It is patch 1/5 of a series that refactors matching input and output devices to classes and
extends possibilities to describe them, in particular, it allows use of regular expressions.
This patch introduces enum xf86Match for different modes of matching present in Xserver code:
case sensitive/insensitive, equal strings, being substring, comparison of filenames or
pathnames etc, and introduces struct xf86MatchPattern to hold a pattern together with a mode.
These types are not used yet.
Signed-off-by: Oleh Nykyforchyn <oleh.nyk@gmail.com>
Previously, when parsing multiple configuration files containing the same
section names, only the last occurrence of each section would be retained.
Earlier definitions were silently discarded due to unconditional memory
allocation and overwriting of pointers during parsing.
This resulted in incomplete or incorrect configuration state when users
intended to merge or extend configuration through multiple files.
The section parsing functions in Files.c, Flags.c, and Module.c now
accept existing section pointers. These functions allocate new memory only
if the input pointer is NULL, preserving earlier data when re-parsing.
read.c has been updated to detect and pass existing section pointers when
encountering duplicate sections across files, preventing loss of prior content.
With these changes, the parser properly accumulates and merges configuration
data across multiple files, ensuring that all relevant settings are preserved.
Backport from Xorg.
References:
https://gitlab.freedesktop.org/xorg/xserver/-/issues/467https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2045Fixes: #279
Signed-off-by: callmetango <callmetango@users.noreply.github.com>
Resolve name conflict with Sun's <sys/kbd.h> by renaming STRING enum
value to XF86_TOKEN_STRING.
This way, don't need the special #undef hack anymore.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Not used by any external drivers/modules, so no need to keep it public.
Since modesetting is using it, still needs _X_EXPORT, as long as it's
a module.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Using calloc() instead of malloc() as preventive measure, so there
never can be any hidden bugs or leaks due uninitialized memory.
The extra cost of using this compiler intrinsic should be practically
impossible to measure - in many cases a good compiler can even deduce
if certain areas really don't need to be zero'd (because they're written
to right after allocation) and create more efficient machine code.
The code pathes in question are pretty cold anyways, so it's probably
not worth even thinking about potential extra runtime costs.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Adding paranoid extra checks against allocation failure and NULL pointers.
Even though might not be actually hit in practise, it's still better to
be cautious, just in case. And reducing analyzer noise this way.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
These have been forgotten on some major cleanup back almost two decades ago.
(Daniel dropped a lot of dead code, which already had been removed earlier
but merged back accidentially).
Didn't look further back on where exactly they had become obsolete - being
unused for decades should be enough justification for dropping.
Fixes: 81913a1291
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1405>
$ echo "#foo\nfoo" > custom_config $ X -config custom_config
will trigger the double free because the contents of xf86_lex_val.str
have been realloc()ed aready when free is called in read.c:209.
This copies the lex token and adds all the necessary free() calls to
avoid leaking it
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1176>
Several places using _X_ATTRIBUTE_PRINTF macro from X11/Xfuncproto.h
but missing to include it, so it depends on other headers whether it's
included by mere accident, which quickly causes trouble if include order
changes. Cleaning that up by adding explicit include statements.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1580>
Most (but not all) of these were found by using
codespell --builtin clear,rare,usage,informal,code,names
but not everything reported by that was fixed.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
This is a work in progress that builds Xvfb, Xephyr, Xwayland, Xnest,
and Xdmx so far. The outline of Xquartz/Xwin support is in tree, but
hasn't been built yet. The unit tests are also not done.
The intent is to build this as a complete replacement for the
autotools system, then eventually replace autotools. meson is faster
to generate the build, faster to run the bulid, shorter to write the
build files in, and less error-prone than autotools.
v2: Fix indentation nits, move version declaration to project(), use
existing meson_options for version-config.h's vendor name/web.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
The build defines these, so having the defaults is just a way for the
build system's configuration to get out of sync with the code.
v2: Drop #ifndefs around the other two defines.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Just no.
The ddxDesign chunk removes the whole para about xf86FixPciResource,
since it turns out that function doesn't exist at all anymore.
The only drivers that reference this at all are i128 and mga, and even
then only in the non-pciaccess path.
v2:
- Update commentary about i128/mga
- Don't remove the BiosBase keyword from the config parser since that
would turn a no-op into a fatal error (Aaron Plattner)
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Acked-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Allow OutputClass config snippets to modify the module-path.
Note that any specified ModulePaths will be pre-pended to the normal
ModulePath. The idea behind this is that any output hardware specific
modules should have preference over the normal modules.
One use-case for this is the nvidia binary driver, this allows a
config snippet like this:
Section "OutputClass"
MatchDriver "nvidia"
Modulepath "/usr/lib64/nvidia/modules"
EndSection
To get the nvidia glx specific glx module loaded, but only when the
nvidia kernel driver is loaded.
Together with the glvnd work done recently, this allows the nouveau
+ mesa and nvidia-binary userspace stacks to co-exist on the same
system without any ldconfig / xorg.conf tweaking and the xserver will
automatically do the right thing depending on which kernel driver
(nouveau or nvidia) is loaded.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add support for setting options in OutputClass Sections and having these
applied to any matching output devices.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
In InitOutput, if xf86HandleConfigFile returns CONFIG_NOFILE
(which it does if no config file or directory is present), the
autoconfig flag is set, causing xf86AutoConfig to be called
later on.
xf86AutoConfig calls xf86OutputClassDriverList via the
call tree:
xf86AutoConfig =>
listPossibleVideoDrivers =>
xf86PlatformMatchDriver =>
xf86OutputClassDriverList
and xf86OutputClassDriverList attempts to traverse a linked list
that is a member of the XF86ConfigRec struct pointed to by the
global xf86configptr, which is NULL at this point because the
XF86ConfigRec struct is only allocated (by xf86readConfigFile)
AFTER the config file and directory have been successfully
opened; the CONFIG_NOFILE return from xf86HandleConfigFile
occurs BEFORE the call to xf86readConfigFile which allocates
the XF86ConfigRec struct.
Rx: In read.c (for symmetry with xf86freeConfig, which already
appears in this file), add a new function xf86allocateConfig
which tests the value of xf86configptr and, if it's NULL,
allocates the XF86ConfigRec struct and deposits the pointer
in xf86configptr. In xf86Parser.h, add a prototype for the
new xf86allocateConfig function.
Back in read.c, #include "xf86Config.h". In xf86readConfigFile,
change the open-code call to calloc to a call to the new
xf86allocateConfig function.
In xf86AutoConfig.c, add a call to the new xf86allocateConfig function
to the beginning of xf86AutoConfig to make sure the XF86ConfigRec struct
is allocated.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Ben Crocker <bcrocker@redhat.com>
As the man page for the latter states:
The effects of signal() in a multithreaded process are unspecified.
We already have an interface to call sigaction() instead, use it.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
The tablet pads have been separate kernel devices for a while now and
libwacom has labelled them with the udev ID_INPUT_TABLET_PAD for over a year
now. Add a new MatchIsTabletPad directive to apply configuration options
specifically to the Pad part of a tablet.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Rather than 'hacking' around symbol names and providing macros such as
'Local' just fold things and make the code more readable.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
... so that we can use it without the forward declaration. Plus we're
doing to reuse it in the next commit ;-)
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Add the const notation to all the static storage as well as the
functions that use it - xf86getToken(), xf86getSubTokenWithTab(),
StringToToken() and xf86getStringToken().
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
InputClass sections use various MatchFoo directives to decide which device to
apply to. This usually works fine for specific snippets but has drawbacks for
snippets that apply more generally to a multitude of devices.
This patch adds a NoMatchFoo directive to negate a match, thus allowing
snippets that only apply if a given condition is not set. Specifically, this
allows for more flexible fallback driver matching, it is now possible to use a
snippet that says "assign driver foo, but only if driver bar wasn't already
assigned to it". For example:
Section "InputClass"
Identifier "libinput for tablets"
MatchIsTablet "true"
NoMatchDriver "wacom"
Driver "libinput"
EndSection
The above only assigns libinput to tablet devices if wacom isn't already
assigned to this device, making it possible to select a specific driver by
installing/uninstalling it.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Now since the installable libxf86config is gone, rename
libxf86config_internal to libxf86config.
Signed-off-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
The library used by the Xserver to read and parse the configuration file
could be built so that it culd be installed as a separate lib and used
by external programs.
Apparently there has not been any interest in this for quite a while as
this library has been broken for a long time now in the sense that it
was calling functions provided by the Xserver which were not implemented
for the external library.
Since this library is useless as it is anyway when built let's drop
support for it.
Signed-off-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
This allows gpu devices to be specified in xorg.conf Screen sections.
Section "Device"
Driver "intel"
Identifier "intel0"
Option "AccelMethod" "uxa"
EndSection
Section "Device"
Driver "modesetting"
Identifier "usb0"
EndSection
Section "Screen"
Identifier "screen"
Device "intel0"
GPUDevice "usb0"
EndSection
This should allow for easier tweaking of driver options which
currently mess up the GPU device discovery process.
v2: add error handling for more than 4 devices, (Emil)
fixup CONF_ defines to consistency
add MAX_GPUDEVICES define
(yes there is two defines, this is consistent
with everywhere else).
remove braces around slp (Mark Kettenis)
man page fixups (Aaron)
v2.1: fixup whitespace (Aaron)
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
