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glsync's Introduction

GLSync

This is a readme file for glsync hack, which enforces glXSwapBuffers to synchronize GPU with CPU (e.g. empty the command buffer) This project is a shameless fork of elfhacks - an excelent work of Pyry Haulos - all credit goes to him.

Building

mkdir build
cd build
cmake ..
make

This will (hopefully) produce libglsync.so and libglsync32.so in build/sync/ directory, which should be LD_PRELOADed with the application that needs to be amended.

Running

Usually it should suffice to do:

LD_PRELOAD=PATH_TO/libglsync.so executable

or

LD_PRELOAD=PATH_TO/libglsync32.so 32bit_executable

for 32bit executables.

Known issues

Left4Dead2 does not work with this lib ("Could not load library matchmaking").

glsync's People

Contributors

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glsync's Issues

Issues while compiling LD_PRELOAD hack

Hi, I was trying to compile the hack but an error is occurring when I use the make command:

[ 25%] Built target elfhacks
[ 50%] Building C object src/CMakeFiles/elfhacks32.dir/elfhacks.o
In file included from /usr/include/stdlib.h:25:0,
from /home/lord-avallon/Downloads/glsync-master/src/elfhacks.c:11:
/usr/include/features.h:324:26: fatal error: bits/predefs.h: No such file or directory
compilation terminated.
make[2]: ** [src/CMakeFiles/elfhacks32.dir/elfhacks.o] Error 1
make[1]: ** [src/CMakeFiles/elfhacks32.dir/all] Error 2
make: ** [all] Error 2

The files libglsync.so and libglsync32.so are not produced in build/sync/ directory.

If you can help me with this I would appreciate, thanks for your time!

cannot find -lgcc

Hi i get the following issue when i try to make:

~/glsync-master/build> make
[ 25%] Built target elfhacks
Linking C shared library libelfhacks32.so
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/gcc/x86_64-suse-linux/4.8/libgcc.a when searching for -lgcc
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: cannot find -lgcc
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/gcc/x86_64-suse-linux/4.8/libgcc_s.so when searching for -lgcc_s
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../x86_64-suse-linux/bin/ld: cannot find -lgcc_s
collect2: error: ld returned 1 exit status
make[2]: *** [src/libelfhacks32.so.0.4.1] Fehler 1
make[1]: *** [src/CMakeFiles/elfhacks32.dir/all] Error 2
make: *** [all] Error 2

Do you know what's wrong?

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