Lots of logging functions, especially init and teardown aren't called
by any drivers/modules, so no need to keep them exported.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Only key difference that calloc(), in contrast to rellocarray(),
is zero-initializing. The overhead is hard to measure on today's
machines, and it's safer programming practise to always allocate
zero-initialized, so one can't forget to do it explicitly.
Cocci rule:
@@
expression COUNT;
expression LEN;
@@
- xallocarray(COUNT,LEN)
+ calloc(COUNT,LEN)
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
No need for using a complex callback machinery, if we just move the
little pieces of byte-swapping directly into the request handler.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
No need for using a complex callback machinery, if we just move the
little pieces of byte-swapping directly into the request handler.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Both xlib as well as the Xserver use the same identifier "GC" for
different types. While on xlib it's just the numerical ID of a GC,
the xserver defines a struct for it by the same name. This is this
ugly and needs ridiculous hacks for Xserver code that needs xlib.
Easy to solve by just renaming the GC typedef to GCRec (consistent
with how we're naming other structs) and replacing GC* by GCPtr.
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>
The analyzer is wrong here, because the free'd closure pointer really points
to some calloc()'d chunk, instead of the PolyText()'s stack frame.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
There's a (theoretical) chance that origGC might be NULL, so better
be cautious and check for this - doesn't cost us much, probably just
another JZ instruction.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Not used by any external drivers, so no need to keep it exported.
Also renamed to dixClientSignal(), since there's a conflicting prototype
in fontsproto.h.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Since LogVMessageVerb() is now signal safe, we can use this one instead.
Leaving VErrorF() macro for backwards compat with drivers.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1691>
PANORAMIX was the original working title of the extension, before it became
official standard. Just nobody cared about fixing the symbols to the official
naming.
For backwards compatibility with drivers, the old PANORAMIX symbol will
still be set.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1258>
The dix-config.h include file is always present, so no need for
an extra check and conditional include.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Clears warning from gcc 14.1:
../dix/dixfonts.c: In function ‘SetFontPath’:
../dix/dixfonts.c:1697:28: warning: use of uninitialized value ‘bad’
[CWE-457] [-Wanalyzer-use-of-uninitialized-value]
1697 | client->errorValue = bad;
| ~~~~~~~~~~~~~~~~~~~^~~~~
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1673>
Clears warning from gcc 14.1:
../dix/dixfonts.c:1352:15: warning: use of uninitialized value ‘*c.data’
[CWE-457] [-Wanalyzer-use-of-uninitialized-value]
1352 | free(c->data);
| ~^~~~~~
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1673>
he generic XaceHook() call isn't typesafe (und unnecessarily slow).
Better add an explicit function, just like we already have for others.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1556>
Windows' native headers using some our RT_* define's names for other things.
Since the naming isn't very nice anyways, introducing some new ones
(X11_RESTYPE_NONE, X11_RESTYPE_FONT, X11_RESTYPE_CURSOR) and define the old
ones as an alias to them, in case some out-of-tree code still uses them.
With thins change, we don't need to be so extremely careful about include
ordering and have explicit #undef's in order to prevent name clashes on
Win32 targets.
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1355>
Most of these came from a mass bcopy() -> memmove() substitution in 1993
with a commit comment of "Ansification (changed bfuncs -> mfuncs)"
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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 removes the last uses of fd_set from the server interfaces
outside of the OS layer itself.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This new libXfont API eliminates exposing internal X server symbols to
the font library, replacing those with a struct full of the entire API
needed to use that library.
v2: Use libXfont2 instead of libXfont_2
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Font initialization was split into two stages, the first was to set up
font privates with a call to ResetFontPrivateIndex, then much later
the call to InitFonts to set up all of the FPEs. Doing the full font
initialization before initializing the video drivers means that we can
move the call to ResetFontPrivateIndex inside InitFonts.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Patch 3ab6cd31cb fixed Xinerama
interactions with font servers by not putting clients to sleep
multiple times. However, it introduced additional changes dealing with
libXfont routine returning Suspended more than once for the same
request. This additional change was to abandon processing of the
current request and free the closure data by jumping to
'xinerama_sleep' in each of the functions.
Font library functions shouldn't return Suspended more than once,
except for ListFontsWithInfo, which produces multiple replies, and
thus ends up returning Suspended many times during processing.
With the jump to xinerama_sleep occurring after the first reply was
processed, the closure for the request was freed and future calls into
the ListFontsWithInfo callback resulted in dereferencing freed
memory.
This patch removes the added branches, reverting the code to its
previous behaviour, which permitted multiple Suspended returns and
simply waited for the client to be signaled again so that the callback
could continue processing the request.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
On systems without these directories, we don't need to be complaining
loudly.
Reviewed-by: Kristian Hoegsberg <krh@bitplanet.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
Flagged by cppcheck 1.62:
[dix/dixfonts.c:1792]: (error) Common realloc mistake:
'font_path_string' nulled but not freed upon failure
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
As usual, mostly const char changes. However, filter_device_events had
a potentially uninitialized value, 'raw', which I added a bunch of
checks for. I suspect most of those are 'can't happen', but it's hard
to see that inside the function.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Save a pointer to the passed in closure structure before copying it
and overwriting the *c pointer to point to our copy instead of the
original. If we hit an error, once we free(c), reset c to point to
the original structure before jumping to the cleanup code that
references *c.
Since one of the errors being checked for is whether the server was
able to malloc(c->nChars * itemSize), the client can potentially pass
a number of characters chosen to cause the malloc to fail and the
error path to be taken, resulting in the read from freed memory.
Since the memory is accessed almost immediately afterwards, and the
X server is mostly single threaded, the odds of the free memory having
invalid contents are low with most malloc implementations when not using
memory debugging features, but some allocators will definitely overwrite
the memory there, leading to a likely crash.
Reported-by: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
These functions are already declared in <X11/fonts/fontproto.h>.
Redeclaring them just for _X_EXPORT causes tons of warnings throughout
xserver, but they need to be declared somewhere to be picked up by
sdksyms.sh. Doing so in a private header limits the warnings to
sdksyms.c; fixing those as well would require changes to fontsproto.
Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
Casting return to (void) was used to tell lint that you intended
to ignore the return value, so it didn't warn you about it.
Casting the third argument to (char *) was used as the most generic
pointer type in the days before compilers supported C89 (void *)
(except for a couple places it's used for byte-sized pointer math).
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
No other Xfont consumer used it, and this saves us from having to link
callers against libXfont for one simple function when doing
-no-undefined symbols builds.
The function is given a new name to avoid clashing with existing libXfont
binaries, but a #define is provided to preserve the API so we don't have
to fix all the callers at the same time.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
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>
This was introduced in 3ab6cd31cb. Mea
culpa. This logic is still incorrect [1], but at least it's less
incorrect.
[1] - https://bugzilla.redhat.com/658587
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
When doing Xinerama, we'll dispatch font ops across all backend screens.
If using a font server (such that some operations can sleep), we'll put
the client to sleep once for each screen, but only wake up once, because
we're trying to keep track of the sleep count in _each_ screen's
closure.
Instead, just ask the core whether the client is already asleep.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
X server doesn't need to understand fpe internals, so use
register_fpe_functions from libXfont.
It's required to get new version of libXfont, therefore adjust it to be passed
to autoconf.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Replace xstrdup with strdup when either constant string is
being duplicated or argument is guarded by conditionals and
obviously can't be NULL
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Enrico Weigelt, metux IT consult
Alan Coopersmith
Eric Anholt
Keith Packard
Adam Jackson
Peter Hutterer
Jasper St. Pierre
Yaakov Selkowitz
Alan Hourihane
Tiago Vignatti
Jamey Sharp
Mikhail Gusarov