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>
public server module API headers shouldn't be clobbered with non-exported
definitions, so move them out to private header file.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1290>
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.
The macro still needs to remain, as long as (external) drivers still using it.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.
The macro still needs to remain, as long as (external) drivers still using it.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
The xnfreallocarray was added along (and just as an alias to) XNFreallocarray
back a decade ago. It's just used in a few places and it's only saves us from
passing the first parameter (NULL), so the actual benefit isn't really huge.
No (known) driver is using it, so the macro can be dropped entirely.
Fixes: ae75d50395
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
This has been nothing but an alias for two decades now (somewhere in R6.6),
so there doesn't seem to be any practical need for this indirection.
The macro still needs to remain, as long as (external) drivers still using it.
Fixes: ded6147bfb
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1529>
Changes check for trying modesetting driver from if defined(__linux__)
to use meson check for if we built the driver for this platform.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
I wanted to simplify the logic, and thought this is a good opportunity
to eliminate local diffs.
I don't want to list OSes without wsfb, because I understand that is a
netbsd/openbsd driver, and always have it as a fallback for us.
Additionally, I understand "fbdev" is linux-specific, so have the logic
match this intent.
Implementation of new drivers matching algorithm. New approach
doesn't add duplicate drivers and ease drivers matching phase.
v2: Re-commit the patch reverted in
2388f5e583, with Aaron Plattner's
fix squashed in (by anholt).
Signed-off-by: Karol Kosik <kkosik@nvidia.com>
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com> (v1)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> (v1)
Tested-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Eric Anholt <eric@anholt.net>
This reverts commit 112d0d7d01.
It broke Xorg for Adam, Peter, and myself, by failing hard when a
module load failed.
Signed-off-by: Eric Anholt <eric@anholt.net>
Implementation of new drivers matching algorithm. New approach
doesn't add duplicate drivers and ease drivers matching phase.
Signed-off-by: Karol Kosik <kkosik@nvidia.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.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>
This loop was written in a buggy style, causing a NULL driver ptr to be
passed to copyScreen(). copyScreen() only uses that to generate an
identifier string, so this is mostly harmless on systems that accept
NULL for asprintf() "%s" format. (the generated identifiers are off
by one wrt the driver names and the last one contains NULL.
For systems that don't accept NULL for '%s' this would cause a
segmentation fault when this code is used (no xorg.conf, but partial
config in xorg.conf.d for instance).
Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
Reviewed-by: Keith Packard <keithp@keithp.com>
Globally replace #ifdef and #if defined usage of 'sun' with '__sun'
such that strict ISO compiler modes such as -ansi or -std=c99 can be used.
Signed-off-by: Richard PALO <richard@NetBSD.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Gets rid of gcc 4.8 warnings:
xf86AutoConfig.c:211:9: warning: nested extern declaration of
'xf86SolarisFbDev' [-Wnested-externs]
sun_VTsw.c:44:1: warning: no previous prototype for 'xf86VTRelease'
[-Wmissing-prototypes]
sun_VTsw.c:59:1: warning: no previous prototype for 'xf86VTAcquire'
[-Wmissing-prototypes]
and ensures caller & definition stay in sync.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Most of the driver enumeration functions take an array and a maximum
number of entries that they are allowed to fill in. Upon success, they
return the number of entries filled in. This allows them to be easily
used to consecutively.
One exception is the xf86MatchDriverFromFiles() function, which doesn't
return a value, so callers have to manually search the array for the
first empty entry.
This commit modifies the xf86MatchDriverFromFiles() to behave the same
way as others, which makes it easier to deal with.
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Tested-By: Aaron Plattner <aplattner@nvidia.com>
Tested-by: Rob Clark <robdclark@gmail.com> (on arm / platform device)
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
On UEFI machines you'd prefer fbdev to grab efifb instead of vesa trying
to initialize and failing in a way we can't unwind from. On BIOS
machines this is harmless: either there is an fbdev driver and it'll
probably be more capable, or there's not and vesa will kick in anyway.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This fixes an implicit declaration,
xf86AutoConfig.c:202:5: error: implicit declaration of function 'xf86PlatformMatchDriver' [-Werror=implicit-function-declaration]
xf86AutoConfig.c:202:5: warning: nested extern declaration of 'xf86PlatformMatchDriver' [-Wnested-externs]
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
On Linux in order for future hotplug work, we are required to interface
to udev to detect device creation/removal. In order to try and get
some earlier testing on this, this patch adds the ability to use
udev for device enumeration on Linux.
At startup the list of drm/kms devices is probed and this info is
used to load drivers.
A new driver probing method is introduced that passes the udev
device info to the driver for probing.
The probing integrates with the pci probing code and will fallback
to the pci probe and old school probe functions in turn.
The flags parameter to the probe function will be used later
to provide hotplug and gpu screen flags for the driver to behave
in a different way.
This patch changes the driver ABI, all drivers should at least
be set with a NULL udev probe function after this commit.
v2: rename to platform bus, now with 100% less udev specific,
this version passes config_odev_attribs around which are an array
of id/string pairs, then the udev code can attach the set of attribs
it understands, the OS specific code can attach its attrib, and then
the core/drivers can lookup the required attribs.
also add MATCH_PCI_DEVICES macro.
This version is mainly to address concerns raised by ajax.
v3: Address comments from Peter.
fix whitespace that snuck in.
rework to use a linked list with some core functions that
xf86 wraps.
v4: add free list, fix struct whitespace.
ajax this address most of your issues?
v5: drop probe ifdef, fix logic issue
v6: some overhaul after more testing.
Implement primaryBus for platform devices.
document hotplug.h dev attribs - drop sysname attrib
fix build with udev kms disabled
make probing work like the PCI probe code,
match against bus id if one exists, or primary device.
RFC: add new bus id support "PLAT:syspath". we probably
want to match on this a bit different, or use a different
property maybe. I was mainly wanting this for use with
specifying usb devices in xorg.conf directly, but PLAT:path
could also work I suppose.
v6.1: add missing noop platform function
v7: fix two interactions with pci probing and slot claiming, prevents
pci and platform trying to load two drivers for same slot.
v8: test with zaphod mode on -ati driver, fixup resulting issue
clean up common probe code into another function, change busid
matching to allow dropping end of strings.
v9: fix platform probing logic so it actually works.
v9.1: fix pdev init to NULL properly.
v10: address most of Keith's concerns.
v4 was thanks to Reviewed-by: Adam Jackson <ajax@redhat.com>
v5 was Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Add the modesetting driver to the fallback list on Linux, after vesa
before fbdev.
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:
-bap
-psl
-T PrivatePtr
-T pmWait
-T _XFUNCPROTOBEGIN
-T _XFUNCPROTOEND
-T _X_EXPORT
The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.
The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.
The comparison was done with this script:
dir1=$1
dir2=$2
for dir in $dir1 $dir2; do
(cd $dir && find . -name '*.o' | while read file; do
dir=`dirname $file`
base=`basename $file .o`
dump=$dir/$base.dump
objdump -d $file > $dump
done)
done
find $dir1 -name '*.dump' | while read dump; do
otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
diff -u $dump $otherdump
done
Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
We don't ship either one, so don't waste time and make confusing log
entries trying to load them.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
--disable-pciaccess, used together with --disable-module-int10, can be used to
disable all pci code inside the server.
Note that XSERVER_LIBPCIACCESS was previously used only in the driver side and
now it defines also whether the library is used inside the server. Also,
XORG_BUS_PCI automake variable is introduced to track PCI code needs.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Tested-by: Jeremy Huddleston <jeremyhu@apple.com>
xf86AutoConfig.c: In function ‘FreeList’:
xf86AutoConfig.c:123: warning: passing argument 1 of ‘free’ discards
qualifiers from pointer target type
/usr/include/stdlib.h:488: note: expected ‘void *’ but argument is of
type ‘const char *’
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
No point calling the no-fail-alloc if you check for failure and your
only caller checks for failure.
No point calling calloc to zero fill memory you're about to memcpy over.
In the unlikely event of a loss of memory allocation, drop your previous
allocations before returning to others.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
This patch was generated by the following Perl code:
perl -i -pe 's/([^_])return\s*\(\s*([^(]+?)\s*\)s*;(\s+(\n))?/$1return $2;$4/g;'
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
This patch has been generated by the following Coccinelle semantic patch:
@@
expression E;
@@
-if(E) { free(E); }
+free(E);
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Fernando Carrijo <fcarrijo@yahoo.com.br>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The move of the PCI device id probing into a separate file neglected to
return the number of found devices, and so the PCI devices were being
overwritten by the default entries for vesa and fbdev.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tiago Vignatti <tiago.vignatti@nokia.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This patch creates the private xf86PciMatchDriver hook, which goes inside pci
code to match the drivers found in the system.
Now there's no direct references to PCI inside xf86AutoConfig.c anymore.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
The only remaining X-functions used in server are XNF*, the rest is converted to
plain alloc/calloc/realloc/free/strdup.
X* functions are still exported from server and x* macros are still defined in
header file, so both ABI and API are not affected by this change.
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
When doing driver autoconfiguration with some parts of the config file
present but no driver set (e.g. only input configuration) fix the case
that we may have multiple drivers to try.
Create a screen section for each driver and let them be tried in a row.
Signed-off-by: Ruediger Oertel <ro@suse.de>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
Tested-by: Timo Aaltonen <timo.aaltonen@aalto.fi>
Signed-off-by: Keith Packard <keithp@keithp.com>
The qxl driver is for the QXL virtualized graphics device.
Signed-off-by: Søren Sandmann Pedersen <ssp@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Currently there is a single file, xorg.conf, for configuring the server.
This works fine most of the time, but it becomes a problem when packages
or system services need to adjust the configuration. Instead, allow
multiple configuration files to live in a directory. Typically this will
be /etc/X11/xorg.conf.d.
Files with a suffix of .conf will be read and added to the server
configuration after xorg.conf. The server won't fall back to using the
auto configuration unless there is no config file and there are no files
in the config directory.
Right now this uses a simpler search template than the config file
search path by not using the command line or environment variable
parameters. The matching code was refactored a bit to make this more
coherent. Any DDX wanting to read the config files will need to call
xf86initConfigFiles before opening/reading them. This is to allow
xf86openConfigFile without xf86openConfigDirFiles and vice-versa.
Signed-off-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer at who-t.net>
In practice, some of the native drivers for older Geode products
have become deprecated due to lack of e.g. libpciaccess upgrade,
but that's OK, since most distributions don't ship them anymore.
In that case, we'll let X server fall back to good old VESA.
Enrico Weigelt, metux IT consult
Gleb Popov
Alan Coopersmith
coypu@sdf.org
Karol Kosik
Eric Anholt
Ben Crocker
Matthieu Herrb
Richard PALO
Peter Hutterer
Thierry Reding
Keith Packard
Adam Jackson
Dave Airlie
Dave Airlie
Tiago Vignatti
Mikhail Gusarov
Chris Wilson
Ruediger Oertel
Soeren Sandmann
Dan Nicholson
Martin-Éric Racine