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This avoids undefined behavior (left shift overflow in signed integer type)
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
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Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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This eliminates the weak symbol adventures and makes all of the calls
back to the X server or Font server go through a table of functions
instead, clarifying the required API.
As this is a rather major change to the API for the library, it now
installs itself as libXfont2 instead of libXfont, and the package
config file is now xfont2.pc.
All of the installed headers remain the same as the original library;
there's now a new include file, libxfont2.h, which defines the X
server and Font server interfaces.
This moves util/atom.c to stubs/atom.c and reformats that file, hence
the diff being larger than it would otherwise be.
v2: Rename to libXfont2 instead of libXfont_2 as suggested by Emil Velikov
Fix whitespace in stubs/atom.c, which was moved from util/
v3: Remove select masks from API. Expose single 'font_init' function
for all library initialization.
v4: Change name of distributed tarballs to libXfont2 as well
Signed-off-by: Keith Packard <keithp@keithp.com>
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Lesser of two evil hacks, I suppose...
This reverts commit 0386fa77367a305deea3cc27f8a3865cc3c467c0.
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stubs resolution
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
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Weak symbols on PE platforms do not work the same way as on ELF
platforms, hence we have been unable to have a fully functional shared
libXfont until now. This patch works around these issues so that we
can fix that.
In summary, only when compiling shared libraries on NO_WEAK_SYMBOLS
platforms, when the first stub is called, the invoking program is first
checked to determine if it exports the stubbed functions. Then, for
every stub call, if the function is exported by the loader, it is called
instead of the stub code.
serverClient and serverGeneration are data pointers, and therefore are
replaced by getter functions. ErrorF is variadic, so the override is
routed through VErrorF instead. FatalError has no va_list equivalent,
but it is not actually used in libXfont and therefore should be safe to
remove.
This requires all X servers to export their symbols, which requires
forthcoming patches for hw/xwin and xfs; the other xservers (including
tigervnc) already do this via LD_EXPORT_SYMBOLS_FLAG.
Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Tested-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
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Excerpt https://lists.gnu.org/archive/html/automake/2012-12/msg00038.html
- Support for the long-deprecated INCLUDES variable will be removed
altogether in Automake 1.14. The AM_CPPFLAGS variable should be
used instead.
This variable was deprecated in Automake releases prior to 1.10, which is
the current minimum level required to build X.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
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Performed with: find * -type f | xargs perl -i -p -e 's{[ \t]+$}{}'
git diff -w & git diff -b show no diffs from this change
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Signed-off-by: Jesse Adkins <jesserayadkins@gmail.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Sun compilers use #pragma weak in the *.c files to declare weak symbols,
so should have weak defined to empty, but not define NO_WEAK_SYMBOLS
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
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Since we fix this by removing the serverGeneration symbol, assuming
an external definition will be provided, this means on Windows libXfont
can only be built as a static library (since PE shared libraries cannot
contain undefined symbols). This produces a libXfont which might only
be useful to the xserver, but the only other users we might care about
are xfs, which is obsolete, and bdftopcf, which fortunately doesn't
pull in any objects which reference serverGeneration from libXfont.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
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Distribute ChangeLog but not autogen.sh.
Use a single toplevel .gitignore file, instead of one per subdirectory.
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Xprint is just insidious, isn't it.
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This lets the user set CFLAGS when running make.
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Loadable font modules were not being initialized, and all font renderers
known at build time were always being initialized, regardless of Xorg
module configuration.
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as weak symbols so that the linker will prefer the server's definition
when present.
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found when building in the modular tree
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<X11/fonts/*.h>
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Add XSERV_t, TRANS_SERVER, TRANS_REOPEN to quash warnings.
Add #include <dix-config.h> or <xorg-config.h>, as appropriate, to all
source files in the xserver/xorg tree, predicated on defines of
HAVE_{DIX,XORG}_CONFIG_H. Change all Xfont includes to
<X11/fonts/foo.h>.
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