There are lots of libraries in official maven repo released as libraryX-0.1.2-alpha1 and I think that even in sonatype’s maven book there is similar guidance for releasing alpha/beta versions, so you can even put it in the release repository.
*** Edit ***
Just a quick note - I’ve just tried the lib on linux with the existing code and it works without problems for fairly non-trivial examples.
IMPORTANT - the .so file must be renamed to contain _0_2_0, since make generated it without that.
OK, after “the usual hassle” with Maven, GitHub and Sonatype, version “0.2.0-RC00” should soon be available in the central.
Thank you, Marco.
I have asked a friend who owns a Mac Book Pro (Mid 2014) wih Intel Iris graphic card to build the OSX binary, but he failed. There were three basic problems:
I have to admit a few things:
When there is no CL 2.0 SDK on MacOS, I doubt that it will be possible to compile it. According to https://support.apple.com/de-de/HT202823 , the newest supported version if 1.2. - which is surprising, considering Apples role in OpenCL. Hopefully, CL 2.0 will be available on Mac soon. (In fact, Khronos is already at 2.1…)
However, regarding the build/makefiles: I know that this is not an acceptable situation. I’ll definitely try to create proper CMake files before the final 0.2.0 release. The relevant Find-Scripts, FindOpenCL — CMake 3.1.3 Documentation and FindJava — CMake 3.1.3 Documentation , should make this easy.
Sorry for the hassle with trying to build it. I hope that this will work more smoothly with CMake.
[QUOTE=Marco13]
When there is no CL 2.0 SDK on MacOS, I doubt that it will be possible to compile it. [/QUOTE]
That may have been wrong. In fact, it does not link against the OpenCL library. Due to the ICD and the way that the implementations are resolved, it should actually be possible to compile it, even when only the headers are available.
I have created a CMake file. Until now, I could only test it on Windows. If someone would like (or be so friendly :)) to test it on Linux as well before it replaces the current makefile: I have temporarily uploaded it to
http://jocl.org/JOCL%20build%20scripts.zip
And for the case that someone would like (or be so friendly :)) to test it on a Mac, where OpenCL 2.0 is not yet available, I have packed the CL 2.0 headers from Khronos into this archive for convenience:
http://jocl.org/OpenCL%202.0%20Headers.zip
I tested it on Fedora 21. Unfortunately the installed OpenCL Headers at Fedora are Version 1.2. So “find_package(OpenCL REQUIRED)” did not work. If I use “include_directories(…)” instead, with the headers you provide, it compiles fine. I don’t know if there is a better way.
(I don’t tested the resulting libJOCL-linux-x86_64.so)
Viele Grüße
Fancy
May I suggest then to add the appropriate OpenCL headers to the project itself, so the actual build does not depend on the external configuration of the OS at all?
It may also be a good thing if the official github repo (I believe it is GitHub - gpu/JOCL: Java bindings for OpenCL) figures prominently on the org.jocl page. the current situation is that the info on building the project is scattered and not clear, and that poses problems for people that might want to help and contribute builds, examples, fix bugs etc. If there was automatic build that just works, you would probably just get prepared patches for most stuff that you are bugged about now 
Did the find-script itself not work, or did it not find the right headers? (I’m not sure when „FindOpenCL“ was added to CMake, so it may depend on the version…)
I’ll probably do that, it may simplify things (maybe one doesn’t even need FindOpenCL any more)
Yes, that’s something I also considered recently. When I created the GitHub repo, I basically only created it because a public repo was necessary for Maven. The „primary distribution“ was still the website (and the GIT repo and my actual (development) SVN repo are still separated here locally :-o ). However, I agree that this can be improved.
BTW: The automatic build with Maven „just works“ … unless one sets up a new PC, where the whole toolchain, SSL and GPG keys etc. have to be renewed… But that’s done now, and a public repo, with working build scripts for the native part, and a proper POM (maybe, one day, even with this Native-Plugin thing…) are certainly desirable.
Here is the cmake output and yum info about the installed versions:
[spoiler][mschorn@cube JOCL-0.2.0-RC-src]$ yum info opencl-headers
Loaded plugins: langpacks
Installed Packages
Name : opencl-headers
Arch : noarch
Version : 1.2
Release : 6.fc21
Size : 404 k
Repo : installed
From repo : fedora
Summary : Khronos OpenCL development headers
URL : Khronos OpenCL Registry
License : MIT
Description : Khronos OpenCL development headers
[mschorn@cube JOCL-0.2.0-RC-src]$ yum info cmake
Loaded plugins: langpacks
Installed Packages
Name : cmake
Arch : x86_64
Version : 3.0.2
Release : 2.fc21
Size : 19 M
Repo : installed
From repo : fedora
Summary : Cross-platform make system
URL : CMake
License : BSD and MIT and zlib
Description : CMake is used to control the software compilation process using simple
: platform and compiler independent configuration files. CMake generates
: native makefiles and workspaces that can be used in the compiler
: environment of your choice. CMake is quite sophisticated: it is possible
: to support complex environments requiring system configuration, preprocessor
: generation, code generation, and template instantiation.
[mschorn@cube JOCL-0.2.0-RC-src]$ cmake JOCLJNI/
– The C compiler identification is GNU 4.9.2
– The CXX compiler identification is GNU 4.9.2
– Check for working C compiler: /usr/bin/cc
– Check for working C compiler: /usr/bin/cc – works
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Check for working CXX compiler: /usr/bin/c++
– Check for working CXX compiler: /usr/bin/c++ – works
– Detecting CXX compiler ABI info
– Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:17 (find_package):
By not providing “FindOpenCL.cmake” in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by “OpenCL”, but
CMake did not find one.
Could not find a package configuration file provided by “OpenCL” with any
of the following names:
OpenCLConfig.cmake
opencl-config.cmake
Add the installation prefix of “OpenCL” to CMAKE_PREFIX_PATH or set
“OpenCL_DIR” to a directory containing one of the above files. If “OpenCL”
provides a separate development package or SDK, be sure it has been
installed.
– Configuring incomplete, errors occurred!
[/spoiler]
Viele Grüße
Fancy
OK, I checked this: FindOpenCL was not available in CMake 3.0.x (but is available in CMake 3.1.x). I guess this will be resolved when I add the headers to the source code (otherwise, I would have to change the required CMake version to 3.1, but this should not be necessary then).
I just pushed the corresponding chages to https://github.com/gpu/JOCL
The CMake files now should cause the native libraries to be placed into the “nativeLibs” directory, where they can be collected during the Maven build. Additionally, I added the CL headers, so there should no longer be dependencies to any CL installation at compile time.
(However, the project structure, with my local repo and the git repo, definitely needs a cleanup. Maybe I can allocate a chunk of time for that, and have a look at the native Maven plugin)
There seems to be some case-sensitive problems on Linux:
[mschorn@cube Downloads]$ cmake JOCL/
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found JNI: /usr/lib/jvm/jre/lib/amd64/libjawt.so
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mschorn/Downloads
[mschorn@cube Downloads]$ make
Scanning dependencies of target JOCL_0_2_0-linux-x86_64
[ 11%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o
In file included from /home/mschorn/Downloads/JOCL/src/main/native/JOCLCommon.hpp:44:0,
from /home/mschorn/Downloads/JOCL/src/main/native/JOCL.cpp:35:
/home/mschorn/Downloads/JOCL/src/main/include/cl/opencl.h:42:19: fatal error: CL/cl.h: No such file or directory
#include <CL/cl.h>
^
compilation terminated.
CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/build.make:54: recipe for target 'CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o' failed
make[2]: *** [CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o] Error 1
CMakeFiles/Makefile2:60: recipe for target 'CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/all' failed
make[1]: *** [CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/all] Error 2
Makefile:76: recipe for target 'all' failed
make: *** [all] Error 2
I rename the cl directory to CL, but got another error message:
[mschorn@cube Downloads]$ mv JOCL/src/main/include/cl/ JOCL/src/main/include/CL
[mschorn@cube Downloads]$ make
Scanning dependencies of target JOCL_0_2_0-linux-x86_64
[ 11%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o
In file included from /home/mschorn/Downloads/JOCL/src/main/native/JOCL.cpp:35:0:
/home/mschorn/Downloads/JOCL/src/main/native/JOCLCommon.hpp:44:27: fatal error: cl/opencl.h: No such file or directory
#include <cl/opencl.h>
^
compilation terminated.
CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/build.make:54: recipe for target 'CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o' failed
make[2]: *** [CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o] Error 1
CMakeFiles/Makefile2:60: recipe for target 'CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/all' failed
make[1]: *** [CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/all] Error 2
Makefile:76: recipe for target 'all' failed
make: *** [all] Error 2
Another problem is: If I had the system OpenCL headers installed, they would be preferred. Which result in lots of “‘clEnqueueSVMUnmapFP’ was not declared in this scope”.
Viele Grüße
Fancy
Aw carp :-/ I have updated the headers for case sensitive systems (I should have thought of that, embarassing). However, I’m not sure how to force him to pick up the right headers. I thought that when the directory is explicitly given (in the CMake files), then it should only find the headers there (although I’m not familiar with any resolution strategies that GCC might use there…)
Now it compiles fine - even with the opencl system headers installed. Maybe because he found now all files, he is working with these files only.
Full compile
[spoiler]
[mschorn@cube Temp]$ yum info opencl-headers
Loaded plugins: langpacks
Installed Packages
Name : opencl-headers
Arch : noarch
Version : 1.2
Release : 6.fc21
Size : 404 k
Repo : installed
From repo : fedora
Summary : Khronos OpenCL development headers
URL : http://www.khronos.org/registry/cl/
License : MIT
Description : Khronos OpenCL development headers
[mschorn@cube Temp]$ git clone https://github.com/gpu/JOCL.git
Cloning into 'JOCL'...
remote: Counting objects: 586, done.
remote: Compressing objects: 100% (19/19), done.
remote: Total 586 (delta 6), reused 0 (delta 0), pack-reused 563
Receiving objects: 100% (586/586), 585.69 KiB | 400.00 KiB/s, done.
Resolving deltas: 100% (341/341), done.
Checking connectivity... done.
[mschorn@cube Temp]$ cmake JOCL/
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found JNI: /usr/lib/jvm/jre/lib/amd64/libjawt.so
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mschorn/Downloads/Temp
[mschorn@cube Temp]$ make
Scanning dependencies of target JOCL_0_2_0-linux-x86_64
[ 11%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clGetDeviceIDsNative(JNIEnv*, jclass, jobject, jlong, jint, jobjectArray, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:717:40: warning: converting to non-pointer type ‘cl_device_type {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_device_type nativeDevice_type = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:737:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clGetDeviceInfoNative(JNIEnv*, jclass, jobject, jint, jlong, jobject, jlongArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:793:39: warning: converting to non-pointer type ‘cl_device_info {aka unsigned int}’ from NULL [-Wconversion-null]
cl_device_info nativeParam_name = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateContextFromTypeNative(JNIEnv*, jclass, jobject, jlong, jobject, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1093:40: warning: converting to non-pointer type ‘cl_device_type {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_device_type nativeDevice_type = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clGetContextInfoNative(JNIEnv*, jclass, jobject, jint, jlong, jobject, jlongArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1222:40: warning: converting to non-pointer type ‘cl_context_info {aka unsigned int}’ from NULL [-Wconversion-null]
cl_context_info nativeParam_name = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clGetCommandQueueInfoNative(JNIEnv*, jclass, jobject, jint, jlong, jobject, jlongArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1448:46: warning: converting to non-pointer type ‘cl_command_queue_info {aka unsigned int}’ from NULL [-Wconversion-null]
cl_command_queue_info nativeParam_name = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateBufferNative(JNIEnv*, jclass, jobject, jlong, jlong, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1545:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateSubBufferNative(JNIEnv*, jclass, jobject, jlong, jint, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1617:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateSubBuffer2Native(JNIEnv*, jclass, jobject, jlong, jint, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1684:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateImageNative(JNIEnv*, jclass, jobject, jlong, jobject, jobject, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1751:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateImage2DNative(JNIEnv*, jclass, jobject, jlong, jobjectArray, jlong, jlong, jlong, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1893:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clCreateImage3DNative(JNIEnv*, jclass, jobject, jlong, jobjectArray, jlong, jlong, jlong, jlong, jlong, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:1983:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clGetSupportedImageFormatsNative(JNIEnv*, jclass, jobject, jlong, jint, jint, jobjectArray, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:2130:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clSetMemObjectDestructorCallbackNative(JNIEnv*, jclass, jobject, jobject, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:2370:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clSVMAllocNative(JNIEnv*, jclass, jobject, jlong, jlong, jint)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:2404:32: warning: converting to non-pointer type ‘cl_mem_flags {aka long unsigned int}’ from NULL [-Wconversion-null]
cl_mem_flags nativeFlags = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clBuildProgramNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jstring, jobject, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:3079:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:3096:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clCreateKernelsInProgramNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:3584:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clSetEventCallbackNative(JNIEnv*, jclass, jobject, jint, jobject, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:4228:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘_jobject* Java_org_jocl_CL_clEnqueueMapBufferNative(JNIEnv*, jclass, jobject, jobject, jboolean, jlong, jlong, jlong, jint, jobjectArray, jobject, jintArray)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:5633:23: warning: converting to non-pointer type ‘size_t {aka long unsigned int}’ from NULL [-Wconversion-null]
size_t nativeCb = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueMigrateMemObjectsNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jlong, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:5890:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueNativeKernelNative(JNIEnv*, jclass, jobject, jobject, jobject, jlong, jint, jobjectArray, jobjectArray, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:6112:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:6123:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueSVMFreeNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jobject, jobject, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:6364:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:6374:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueAcquireGLObjectsNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:7173:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueReleaseGLObjectsNative(JNIEnv*, jclass, jobject, jint, jobjectArray, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/JOCL.cpp:7236:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
[ 22%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/Logger.cpp.o
[ 33%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLJNIUtils.cpp.o
/home/mschorn/Downloads/Temp/JOCL/src/main/native/CLJNIUtils.cpp: In function ‘void getCl_image_format(JNIEnv*, jobject, cl_image_format&)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/CLJNIUtils.cpp:301:44: warning: converting to non-pointer type ‘cl_channel_order {aka unsigned int}’ from NULL [-Wconversion-null]
nativeImage_format.image_channel_order = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/CLJNIUtils.cpp:302:48: warning: converting to non-pointer type ‘cl_channel_type {aka unsigned int}’ from NULL [-Wconversion-null]
nativeImage_format.image_channel_data_type = NULL;
^
[ 44%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLFunctions.cpp.o
[ 55%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils.cpp.o
[ 66%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Linux.cpp.o
[ 77%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Win.cpp.o
/home/mschorn/Downloads/Temp/JOCL/src/main/native/FunctionPointerUtils_Win.cpp:98:8: warning: extra tokens at end of #endif directive
#endif _WIN32
^
[ 88%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JNIUtils.cpp.o
[100%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/PointerUtils.cpp.o
/home/mschorn/Downloads/Temp/JOCL/src/main/native/PointerUtils.cpp: In function ‘PointerData* initPointerData(JNIEnv*, jobject)’:
/home/mschorn/Downloads/Temp/JOCL/src/main/native/PointerUtils.cpp:126:31: warning: converting to non-pointer type ‘long int’ from NULL [-Wconversion-null]
pointerData->startPointer = NULL;
^
/home/mschorn/Downloads/Temp/JOCL/src/main/native/PointerUtils.cpp:127:26: warning: converting to non-pointer type ‘long int’ from NULL [-Wconversion-null]
pointerData->pointer = NULL;
^
Linking CXX shared library libJOCL_0_2_0-linux-x86_64.so
[100%] Built target JOCL_0_2_0-linux-x86_64
[mschorn@cube Temp]$ ls
CMakeCache.txt CMakeFiles cmake_install.cmake JOCL libJOCL_0_2_0-linux-x86_64.so Makefile
[mschorn@cube Temp]$ cd JOCL/
[mschorn@cube JOCL]$ ls
CMake_c_flag_overrides.cmake CMake_cxx_flag_overrides.cmake CMakeLists.txt LICENSE.TXT pom.xml Readme.txt src
[mschorn@cube JOCL]$ mvn clean install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building JOCL 0.2.0-RC01-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ jocl ---
[INFO]
[INFO] --- maven-enforcer-plugin:1.2:enforce (enforce-maven) @ jocl ---
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp/JOCL/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ jocl ---
[INFO] Compiling 33 source files to /home/mschorn/Downloads/Temp/JOCL/target/classes
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp/JOCL/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ jocl ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ jocl ---
[INFO] Tests are skipped.
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:copy-resources (copy-resources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp/JOCL/nativeLibs
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp/JOCL/../../nativeLibs
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ jocl ---
[INFO] Building jar: /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar
[INFO]
[INFO] >>> maven-source-plugin:2.1.2:jar (attach-sources) > generate-sources @ jocl >>>
[INFO]
[INFO] --- maven-enforcer-plugin:1.2:enforce (enforce-maven) @ jocl ---
[INFO]
[INFO] <<< maven-source-plugin:2.1.2:jar (attach-sources) < generate-sources @ jocl <<<
[INFO]
[INFO] --- maven-source-plugin:2.1.2:jar (attach-sources) @ jocl ---
[INFO] Building jar: /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-sources.jar
[INFO]
[INFO] --- maven-javadoc-plugin:2.7:jar (attach-javadocs) @ jocl ---
[INFO]
Loading source files for package org.jocl...
Constructing Javadoc information...
Standard Doclet version 1.8.0_45
Building tree for all the packages and classes...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/BuildProgramFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/CL.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_buffer_region.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_command_queue.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_context.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_context_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_device_id.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_device_partition_property.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_event.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_image_desc.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_image_format.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_kernel.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_mem.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_pipe_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_platform_id.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_program.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_queue_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_sampler.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/cl_sampler_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/CL.LogLevel.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/CLException.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/CreateContextFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/EnqueueNativeKernelFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/EventCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/MemObjectDestructorCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/NativePointerObject.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/Pointer.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/PrintfCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/Sizeof.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/SVMFreeFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/package-frame.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/package-summary.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/package-tree.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/constant-values.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/serialized-form.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_device_id.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/EnqueueNativeKernelFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/NativePointerObject.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/MemObjectDestructorCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_pipe_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/CLException.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/EventCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_context_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_device_partition_property.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_image_format.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_context.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_kernel.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_sampler.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/PrintfCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/BuildProgramFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_mem.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/SVMFreeFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_sampler_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_image_desc.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_buffer_region.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_command_queue.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_program.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/CreateContextFunction.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/Pointer.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_queue_properties.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/Sizeof.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/CL.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/CL.LogLevel.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_platform_id.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/class-use/cl_event.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/org/jocl/package-use.html...
Building index for all the packages and classes...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/overview-tree.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/index-all.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/deprecated-list.html...
Building index for all classes...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/allclasses-frame.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/allclasses-noframe.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/index.html...
Generating /home/mschorn/Downloads/Temp/JOCL/target/apidocs/help-doc.html...
[INFO] Building jar: /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ jocl ---
[INFO] Installing /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT.jar
[INFO] Installing /home/mschorn/Downloads/Temp/JOCL/pom.xml to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT.pom
[INFO] Installing /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-sources.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT-sources.jar
[INFO] Installing /home/mschorn/Downloads/Temp/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.504 s
[INFO] Finished at: 2015-06-03T12:25:29+02:00
[INFO] Final Memory: 21M/294M
[INFO] ------------------------------------------------------------------------
[mschorn@cube JOCL]$
[/spoiler]
But the jar does not contain the native files (maven-resources-plugin: skip non existing resourceDirectory). Cross compiling is fun for every day. 
Viele Grüße
Fancy
OK, the most important thing for now is that the native compilation works (although I have to get rid of these warnings). Assembling this into a JAR is a different story.
He writes the “libJOCL_0_2_0-linux-x86_64.so” into the project root directory, is this right?
The so file is in the same directory as the JOCL directory (one above the pom.xml).
Full directory content
[spoiler]
[mschorn@cube Temp]$ pwd
/home/mschorn/Downloads/Temp
[mschorn@cube Temp]$ ls -R
.:
CMakeCache.txt CMakeFiles cmake_install.cmake JOCL libJOCL_0_2_0-linux-x86_64.so Makefile
./CMakeFiles:
3.0.2 CMakeDirectoryInformation.cmake CMakeTmp Makefile2 progress.marks
cmake.check_cache CMakeOutput.log JOCL_0_2_0-linux-x86_64.dir Makefile.cmake TargetDirectories.txt
./CMakeFiles/3.0.2:
CMakeCCompiler.cmake CMakeDetermineCompilerABI_C.bin CMakeSystem.cmake CompilerIdCXX
CMakeCXXCompiler.cmake CMakeDetermineCompilerABI_CXX.bin CompilerIdC
./CMakeFiles/3.0.2/CompilerIdC:
a.out CMakeCCompilerId.c
./CMakeFiles/3.0.2/CompilerIdCXX:
a.out CMakeCXXCompilerId.cpp
./CMakeFiles/CMakeTmp:
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir:
build.make cmake_clean.cmake CXX.includecache DependInfo.cmake depend.internal depend.make flags.make link.txt progress.make src
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src:
main
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main:
native
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native:
CLFunctions.cpp.o FunctionPointerUtils.cpp.o FunctionPointerUtils_Win.cpp.o JOCL.cpp.o PointerUtils.cpp.o
CLJNIUtils.cpp.o FunctionPointerUtils_Linux.cpp.o JNIUtils.cpp.o Logger.cpp.o
./JOCL:
CMake_c_flag_overrides.cmake CMake_cxx_flag_overrides.cmake CMakeLists.txt LICENSE.TXT pom.xml Readme.txt src target
./JOCL/src:
main
./JOCL/src/main:
include java native
./JOCL/src/main/include:
CL
./JOCL/src/main/include/CL:
cl_d3d10.h cl_d3d11.h cl_dx9_media_sharing.h cl_egl.h cl_ext.h cl_gl_ext.h cl_gl.h cl.h cl_platform.h opencl.h
./JOCL/src/main/java:
org
./JOCL/src/main/java/org:
jocl
./JOCL/src/main/java/org/jocl:
BuildProgramFunction.java CLException.java cl_queue_properties.java MemObjectDestructorCallbackFunction.java
cl_abstract_properties.java cl_image_desc.java cl_sampler.java NativePointerObject.java
cl_buffer_region.java cl_image_format.java cl_sampler_properties.java Pointer.java
cl_command_queue.java CL.java CreateContextFunction.java PrintfCallbackFunction.java
cl_context.java cl_kernel.java EnqueueNativeKernelFunction.java Sizeof.java
cl_context_properties.java cl_mem.java EventCallbackFunction.java SVMFreeFunction.java
cl_device_id.java cl_pipe_properties.java LibInitializer.java
cl_device_partition_property.java cl_platform_id.java LibTracker.java
cl_event.java cl_program.java LibUtils.java
./JOCL/src/main/native:
CLFunctions.cpp CLJNIUtils.hpp FunctionPointerUtils_Linux.cpp JNIUtils.hpp JOCL.hpp PointerUtils.cpp
CLFunctions.hpp FunctionPointerUtils.cpp FunctionPointerUtils_Win.cpp JOCLCommon.hpp Logger.cpp PointerUtils.hpp
CLJNIUtils.cpp FunctionPointerUtils.hpp JNIUtils.cpp JOCL.cpp Logger.hpp
./JOCL/target:
apidocs javadoc-bundle-options jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar maven-archiver
classes jocl-0.2.0-RC01-SNAPSHOT.jar jocl-0.2.0-RC01-SNAPSHOT-sources.jar
./JOCL/target/apidocs:
allclasses-frame.html constant-values.html help-doc.html index.html overview-tree.html script.js stylesheet.css
allclasses-noframe.html deprecated-list.html index-all.html org package-list serialized-form.html
./JOCL/target/apidocs/org:
jocl
./JOCL/target/apidocs/org/jocl:
BuildProgramFunction.html CLException.html cl_program.html package-frame.html
class-use CL.html cl_queue_properties.html package-summary.html
cl_buffer_region.html cl_image_desc.html cl_sampler.html package-tree.html
cl_command_queue.html cl_image_format.html cl_sampler_properties.html package-use.html
cl_context.html cl_kernel.html CreateContextFunction.html Pointer.html
cl_context_properties.html CL.LogLevel.html EnqueueNativeKernelFunction.html PrintfCallbackFunction.html
cl_device_id.html cl_mem.html EventCallbackFunction.html Sizeof.html
cl_device_partition_property.html cl_pipe_properties.html MemObjectDestructorCallbackFunction.html SVMFreeFunction.html
cl_event.html cl_platform_id.html NativePointerObject.html
./JOCL/target/apidocs/org/jocl/class-use:
BuildProgramFunction.html CLException.html cl_platform_id.html MemObjectDestructorCallbackFunction.html
cl_buffer_region.html CL.html cl_program.html NativePointerObject.html
cl_command_queue.html cl_image_desc.html cl_queue_properties.html Pointer.html
cl_context.html cl_image_format.html cl_sampler.html PrintfCallbackFunction.html
cl_context_properties.html cl_kernel.html cl_sampler_properties.html Sizeof.html
cl_device_id.html CL.LogLevel.html CreateContextFunction.html SVMFreeFunction.html
cl_device_partition_property.html cl_mem.html EnqueueNativeKernelFunction.html
cl_event.html cl_pipe_properties.html EventCallbackFunction.html
./JOCL/target/classes:
org
./JOCL/target/classes/org:
jocl
./JOCL/target/classes/org/jocl:
BuildProgramFunction.class cl_device_partition_property.class cl_queue_properties.class LibUtils.class
CL$1.class cl_event.class cl_sampler.class LibUtils$OSType.class
CL$2.class CLException.class cl_sampler_properties.class MemObjectDestructorCallbackFunction.class
CL$3.class cl_image_desc.class CreateContextFunction.class NativePointerObject.class
cl_abstract_properties.class cl_image_format.class EnqueueNativeKernelFunction.class Pointer.class
cl_buffer_region.class cl_kernel.class EventCallbackFunction.class PrintfCallbackFunction.class
CL.class CL$LogLevel.class LibInitializer.class Sizeof.class
cl_command_queue.class cl_mem.class LibTracker$1.class SVMFreeFunction.class
cl_context.class cl_pipe_properties.class LibTracker.class
cl_context_properties.class cl_platform_id.class LibUtils$1.class
cl_device_id.class cl_program.class LibUtils$ARCHType.class
./JOCL/target/javadoc-bundle-options:
javadoc-options-javadoc-resources.xml
./JOCL/target/maven-archiver:
pom.properties
[/spoiler]
Viele Grüße
Fancy
That’s wierd. I just tried it again, and it places the native library into the „root/nativeLibs“ directory. That’s what it should to, according to the line
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${PROJECT_SOURCE_DIR}/nativeLibs)
Any idea why it might not pick this up?
Meh, …
[spoiler]
… just copy the file manually. Who cares.
ducks and covers
[/spoiler]
I tried to fix the warnings, BTW. Also changed the Warning level for VS to „/Wall“, and it spilled out hundreds of signed/unsigned-mismatch warnings, but not the conversion warnings that the GCC (rightfully!) complained about.
I herewith publicly question the sanity of everybody who thinks that the type system in C/C++, and particularly these implicit conversions, even **remotely** make sense.further provocations (particularly targeting pretentiously geeky C++ programmers, who should use JavaScript if they don’t want type safety) are omitted here (well, most of them ;-))
Okay, I played a little and added set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/nativeLibs) to the CMakeLists.txt.
The .so file is now placed at JOCL/nativeLibs and collected by maven.
Full build
[spoiler]
[mschorn@cube Temp2]$ git clone https://github.com/gpu/JOCL.git
Cloning into 'JOCL'...
remote: Counting objects: 599, done.
remote: Compressing objects: 100% (31/31), done.
remote: Total 599 (delta 10), reused 0 (delta 0), pack-reused 563
Receiving objects: 100% (599/599), 623.73 KiB | 498.00 KiB/s, done.
Resolving deltas: 100% (345/345), done.
Checking connectivity... done.
[mschorn@cube Temp2]$ cp ../CMakeLists.txt JOCL/CMakeLists.txt
[mschorn@cube Temp2]$ cat JOCL/CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
# Overriding the CMake flags to use static runtime libraries
# See http://www.cmake.org/Wiki/CMake_FAQ#
# How_can_I_build_my_MSVC_application_with_a_static_runtime.3F
set(CMAKE_USER_MAKE_RULES_OVERRIDE
${CMAKE_CURRENT_SOURCE_DIR}/CMake_c_flag_overrides.cmake)
set(CMAKE_USER_MAKE_RULES_OVERRIDE_CXX
${CMAKE_CURRENT_SOURCE_DIR}/CMake_cxx_flag_overrides.cmake)
project(JOCL)
set(JOCL_VERSION "0_2_0")
set(CMAKE_MODULE_PATH
"${CMAKE_SOURCE_DIR}/CMake"
${CMAKE_MODULE_PATH})
find_package(JNI REQUIRED)
if(CMAKE_HOST_WIN32)
set(CMAKE_HOST "windows")
elseif(CMAKE_HOST_APPLE)
set(CMAKE_HOST "apple")
set(CMAKE_SKIP_RPATH FALSE)
elseif(CMAKE_HOST_UNIX)
set(CMAKE_HOST "linux")
endif()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set(CMAKE_ARCH "x86_64")
else()
set(CMAKE_ARCH "x86")
endif()
if(MSVC)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Wall /wd4514 /wd4820 /wd4710 /wd4711 /wd4350 /wd4668")
endif()
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${PROJECT_SOURCE_DIR}/nativeLibs/Debug)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${PROJECT_SOURCE_DIR}/nativeLibs)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${PROJECT_SOURCE_DIR}/nativeLibs)
set(BUILD_SHARED_LIBS ON)
include_directories(
src/main/native
src/main/include/
${JNI_INCLUDE_DIRS}
)
add_library(JOCL_${JOCL_VERSION}-${CMAKE_HOST}-${CMAKE_ARCH}
src/main/native/JOCL.cpp
src/main/native/Logger.cpp
src/main/native/CLJNIUtils.cpp
src/main/native/CLFunctions.cpp
src/main/native/FunctionPointerUtils.cpp
src/main/native/FunctionPointerUtils_Linux.cpp
src/main/native/FunctionPointerUtils_Win.cpp
src/main/native/JNIUtils.cpp
src/main/native/PointerUtils.cpp
)
[mschorn@cube Temp2]$ cmake JOCL/
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found JNI: /usr/lib/jvm/jre/lib/amd64/libjawt.so
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mschorn/Downloads/Temp2
[mschorn@cube Temp2]$ make
Scanning dependencies of target JOCL_0_2_0-linux-x86_64
[ 11%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o
/home/mschorn/Downloads/Temp2/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueNativeKernelNative(JNIEnv*, jclass, jobject, jobject, jobject, jlong, jint, jobjectArray, jobjectArray, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp2/JOCL/src/main/native/JOCL.cpp:6112:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp2/JOCL/src/main/native/JOCL.cpp:6123:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
[ 22%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/Logger.cpp.o
[ 33%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLJNIUtils.cpp.o
[ 44%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLFunctions.cpp.o
[ 55%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils.cpp.o
[ 66%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Linux.cpp.o
[ 77%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Win.cpp.o
[ 88%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JNIUtils.cpp.o
[100%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/PointerUtils.cpp.o
Linking CXX shared library JOCL/nativeLibs/libJOCL_0_2_0-linux-x86_64.so
[100%] Built target JOCL_0_2_0-linux-x86_64
[mschorn@cube Temp2]$ ls
CMakeCache.txt CMakeFiles cmake_install.cmake JOCL Makefile
[mschorn@cube Temp2]$ cd JOCL/
[mschorn@cube JOCL]$ ls
CMake_c_flag_overrides.cmake CMake_cxx_flag_overrides.cmake CMakeLists.txt LICENSE.TXT nativeLibs pom.xml Readme.txt src
[mschorn@cube JOCL]$ mvn clean install
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building JOCL 0.2.0-RC01-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ jocl ---
[INFO]
[INFO] --- maven-enforcer-plugin:1.2:enforce (enforce-maven) @ jocl ---
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp2/JOCL/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ jocl ---
[INFO] Compiling 33 source files to /home/mschorn/Downloads/Temp2/JOCL/target/classes
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:testResources (default-testResources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp2/JOCL/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ jocl ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ jocl ---
[INFO] Tests are skipped.
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:copy-resources (copy-resources) @ jocl ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] skip non existing resourceDirectory /home/mschorn/Downloads/Temp2/JOCL/../../nativeLibs
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ jocl ---
[INFO] Building jar: /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar
[INFO]
[INFO] >>> maven-source-plugin:2.1.2:jar (attach-sources) > generate-sources @ jocl >>>
[INFO]
[INFO] --- maven-enforcer-plugin:1.2:enforce (enforce-maven) @ jocl ---
[INFO]
[INFO] <<< maven-source-plugin:2.1.2:jar (attach-sources) < generate-sources @ jocl <<<
[INFO]
[INFO] --- maven-source-plugin:2.1.2:jar (attach-sources) @ jocl ---
[INFO] Building jar: /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-sources.jar
[INFO]
[INFO] --- maven-javadoc-plugin:2.7:jar (attach-javadocs) @ jocl ---
[INFO]
Loading source files for package org.jocl...
Constructing Javadoc information...
Standard Doclet version 1.8.0_45
Building tree for all the packages and classes...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/BuildProgramFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/CL.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_buffer_region.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_command_queue.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_context.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_context_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_device_id.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_device_partition_property.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_event.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_image_desc.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_image_format.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_kernel.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_mem.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_pipe_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_platform_id.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_program.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_queue_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_sampler.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/cl_sampler_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/CL.LogLevel.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/CLException.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/CreateContextFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/EnqueueNativeKernelFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/EventCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/MemObjectDestructorCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/NativePointerObject.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/Pointer.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/PrintfCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/Sizeof.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/SVMFreeFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/package-frame.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/package-summary.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/package-tree.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/constant-values.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/serialized-form.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_device_id.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/EnqueueNativeKernelFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/NativePointerObject.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/MemObjectDestructorCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_pipe_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/CLException.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/EventCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_context_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_device_partition_property.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_image_format.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_context.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_kernel.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_sampler.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/PrintfCallbackFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/BuildProgramFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_mem.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/SVMFreeFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_sampler_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_image_desc.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_buffer_region.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_command_queue.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_program.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/CreateContextFunction.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/Pointer.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_queue_properties.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/Sizeof.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/CL.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/CL.LogLevel.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_platform_id.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/class-use/cl_event.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/org/jocl/package-use.html...
Building index for all the packages and classes...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/overview-tree.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/index-all.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/deprecated-list.html...
Building index for all classes...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/allclasses-frame.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/allclasses-noframe.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/index.html...
Generating /home/mschorn/Downloads/Temp2/JOCL/target/apidocs/help-doc.html...
[INFO] Building jar: /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar
[INFO]
[INFO] --- maven-install-plugin:2.4:install (default-install) @ jocl ---
[INFO] Installing /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT.jar
[INFO] Installing /home/mschorn/Downloads/Temp2/JOCL/pom.xml to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT.pom
[INFO] Installing /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-sources.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT-sources.jar
[INFO] Installing /home/mschorn/Downloads/Temp2/JOCL/target/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar to /home/mschorn/.m2/repository/org/jocl/jocl/0.2.0-RC01-SNAPSHOT/jocl-0.2.0-RC01-SNAPSHOT-javadoc.jar
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.194 s
[INFO] Finished at: 2015-06-03T20:06:53+02:00
[INFO] Final Memory: 21M/293M
[INFO] ------------------------------------------------------------------------
[mschorn@cube JOCL]$ cd ..
[/spoiler]
Then I tested the JOCLSample. Unfortunately I run into a Could not load libOpenCL.so, error libOpenCL.so: cannot open shared object file: No such file or directory. I have only the open source mesa driver installed and my lib folder contains only a libOpenCL.so.1. But, a quick and very dirty hack brings it to life.
Full test
[spoiler]
[mschorn@cube Temp2]$ mkdir -p org/jocl/samples/
[mschorn@cube Temp2]$ wget http://www.jocl.org/samples/JOCLSample.java
--2015-06-03 20:16:44-- http://www.jocl.org/samples/JOCLSample.java
Resolving www.jocl.org (www.jocl.org)... 81.169.145.94, 2a01:238:20a:202:1094::
Connecting to www.jocl.org (www.jocl.org)|81.169.145.94|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 5827 (5,7K) [text/x-java-source]
Saving to: ‘JOCLSample.java’
JOCLSample.java 100%[=========================================================================>] 5,69K --.-KB/s in 0,05s
2015-06-03 20:16:44 (114 KB/s) - ‘JOCLSample.java’ saved [5827/5827]
[mschorn@cube Temp2]$ mv JOCLSample.java org/jocl/samples/JOCLSample.java
[mschorn@cube Temp2]$ javac -cp JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar org/jocl/samples/JOCLSample.java
Note: org/jocl/samples/JOCLSample.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
[mschorn@cube Temp2]$ java -cp JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar:. org.jocl.samples.JOCLSample
Could not load libOpenCL.so, error libOpenCL.so: cannot open shared object file: No such file or directory
Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not initialize native library. Implementation library 'libOpenCL.so' could not be loaded
at org.jocl.LibInitializer.initNativeLibrary(LibInitializer.java:51)
at org.jocl.CL.<clinit>(CL.java:51)
at org.jocl.samples.JOCLSample.main(JOCLSample.java:60)
[mschorn@cube Temp2]$ ls /lib64/libOpenC
libOpenCL.so.1 libOpenCOLLADABaseUtils.so.0.2 libOpenCOLLADASaxFrameworkLoader.so.0.2
libOpenCL.so.1.0.0 libOpenCOLLADAFramework.so.0.2 libOpenCOLLADAStreamWriter.so.0.2
[mschorn@cube Temp2]$ sudo cp /lib64/libOpenCL.so.1 /lib64/libOpenCL.so
[mschorn@cube Temp2]$ java -cp JOCL/target/jocl-0.2.0-RC01-SNAPSHOT.jar:. org.jocl.samples.JOCLSample
Test PASSED
Result: [0.0, 1.0, 4.0, 9.0, 16.0, 25.0, 36.0, 49.0, 64.0, 81.0]
[mschorn@cube Temp2]$ sudo rm /lib64/libOpenCL.so
[/spoiler]
Maybe this is an issue with my pc, or mesa, or room for improvement. I don’t know.
Viele Grüße
Fancy
Great, I’ll add the corresponding lines (debug/release).
One would have to read loooots of CMake docu before being able to figure something like this. And that’s no fun:
Executables are always treated as runtime targets. Static libraries are always treated as archive targets. Module libraries are always treated as library targets. For non-DLL platforms shared libraries are treated as library targets. For DLL platforms the DLL part of a shared library is treated as a runtime target and the corresponding import library is treated as an archive target. All Windows-based systems including Cygwin are DLL platforms.
:verzweifel: sure
However: What is this „quick hack“ that you talked about?
I think, he doesn’t like the debug/release (.so is again in the wrong place):
Build
[spoiler]
[mschorn@cube ~]$ cd Downloads/
[mschorn@cube Downloads]$ mkdir Temp3
[mschorn@cube Downloads]$ cd Temp3
[mschorn@cube Temp3]$ git clone https://github.com/gpu/JOCL.git
Cloning into 'JOCL'...
remote: Counting objects: 602, done.
remote: Compressing objects: 100% (34/34), done.
remote: Total 602 (delta 12), reused 0 (delta 0), pack-reused 563
Receiving objects: 100% (602/602), 623.98 KiB | 430.00 KiB/s, done.
Resolving deltas: 100% (347/347), done.
Checking connectivity... done.
[mschorn@cube Temp3]$ cmake JOCL/
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found JNI: /usr/lib/jvm/jre/lib/amd64/libjawt.so
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mschorn/Downloads/Temp3
[mschorn@cube Temp3]$ make
Scanning dependencies of target JOCL_0_2_0-linux-x86_64
[ 11%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JOCL.cpp.o
/home/mschorn/Downloads/Temp3/JOCL/src/main/native/JOCL.cpp: In function ‘jint Java_org_jocl_CL_clEnqueueNativeKernelNative(JNIEnv*, jclass, jobject, jobject, jobject, jlong, jint, jobjectArray, jobjectArray, jint, jobjectArray, jobject)’:
/home/mschorn/Downloads/Temp3/JOCL/src/main/native/JOCL.cpp:6112:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
/home/mschorn/Downloads/Temp3/JOCL/src/main/native/JOCL.cpp:6123:20: warning: converting to non-pointer type ‘jint {aka int}’ from NULL [-Wconversion-null]
return NULL;
^
[ 22%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/Logger.cpp.o
[ 33%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLJNIUtils.cpp.o
[ 44%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/CLFunctions.cpp.o
[ 55%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils.cpp.o
[ 66%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Linux.cpp.o
[ 77%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/FunctionPointerUtils_Win.cpp.o
[ 88%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/JNIUtils.cpp.o
[100%] Building CXX object CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native/PointerUtils.cpp.o
Linking CXX shared library libJOCL_0_2_0-linux-x86_64.so
[100%] Built target JOCL_0_2_0-linux-x86_64
[mschorn@cube Temp3]$ ls
CMakeCache.txt CMakeFiles cmake_install.cmake JOCL libJOCL_0_2_0-linux-x86_64.so Makefile
[mschorn@cube Temp3]$ ls -R
.:
CMakeCache.txt CMakeFiles cmake_install.cmake JOCL libJOCL_0_2_0-linux-x86_64.so Makefile
./CMakeFiles:
3.0.2 CMakeDirectoryInformation.cmake CMakeTmp Makefile2 progress.marks
cmake.check_cache CMakeOutput.log JOCL_0_2_0-linux-x86_64.dir Makefile.cmake TargetDirectories.txt
./CMakeFiles/3.0.2:
CMakeCCompiler.cmake CMakeDetermineCompilerABI_C.bin CMakeSystem.cmake CompilerIdCXX
CMakeCXXCompiler.cmake CMakeDetermineCompilerABI_CXX.bin CompilerIdC
./CMakeFiles/3.0.2/CompilerIdC:
a.out CMakeCCompilerId.c
./CMakeFiles/3.0.2/CompilerIdCXX:
a.out CMakeCXXCompilerId.cpp
./CMakeFiles/CMakeTmp:
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir:
build.make cmake_clean.cmake CXX.includecache DependInfo.cmake depend.internal depend.make flags.make link.txt progress.make src
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src:
main
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main:
native
./CMakeFiles/JOCL_0_2_0-linux-x86_64.dir/src/main/native:
CLFunctions.cpp.o FunctionPointerUtils.cpp.o FunctionPointerUtils_Win.cpp.o JOCL.cpp.o PointerUtils.cpp.o
CLJNIUtils.cpp.o FunctionPointerUtils_Linux.cpp.o JNIUtils.cpp.o Logger.cpp.o
./JOCL:
CMake_c_flag_overrides.cmake CMake_cxx_flag_overrides.cmake CMakeLists.txt LICENSE.TXT pom.xml Readme.txt src
./JOCL/src:
main
./JOCL/src/main:
include java native
./JOCL/src/main/include:
CL
./JOCL/src/main/include/CL:
cl_d3d10.h cl_d3d11.h cl_dx9_media_sharing.h cl_egl.h cl_ext.h cl_gl_ext.h cl_gl.h cl.h cl_platform.h opencl.h
./JOCL/src/main/java:
org
./JOCL/src/main/java/org:
jocl
./JOCL/src/main/java/org/jocl:
BuildProgramFunction.java CLException.java cl_queue_properties.java MemObjectDestructorCallbackFunction.java
cl_abstract_properties.java cl_image_desc.java cl_sampler.java NativePointerObject.java
cl_buffer_region.java cl_image_format.java cl_sampler_properties.java Pointer.java
cl_command_queue.java CL.java CreateContextFunction.java PrintfCallbackFunction.java
cl_context.java cl_kernel.java EnqueueNativeKernelFunction.java Sizeof.java
cl_context_properties.java cl_mem.java EventCallbackFunction.java SVMFreeFunction.java
cl_device_id.java cl_pipe_properties.java LibInitializer.java
cl_device_partition_property.java cl_platform_id.java LibTracker.java
cl_event.java cl_program.java LibUtils.java
./JOCL/src/main/native:
CLFunctions.cpp CLJNIUtils.hpp FunctionPointerUtils_Linux.cpp JNIUtils.hpp JOCL.hpp PointerUtils.cpp
CLFunctions.hpp FunctionPointerUtils.cpp FunctionPointerUtils_Win.cpp JOCLCommon.hpp Logger.cpp PointerUtils.hpp
CLJNIUtils.cpp FunctionPointerUtils.hpp JNIUtils.cpp JOCL.cpp Logger.hpp
[/spoiler]
It seems that cmake has a perfect platform independent behavior.
The quick hack was simply to (temporary) copy the libOpenCL.so.1 to libOpenCL.so. Resolves JOCL the name by itself or comes it from somewhere else? I had the same issue in my Wrappers and use something like this:
1/2 OT
[spoiler]``` case LINUX_X86_32:
case LINUX_X86_64:
library = "libopenal.so." + major;
if (stranger.isValid(library, "alcCreateContext"))
break;
library = "libopenal.so";
if (stranger.isValid(library, "alcCreateContext"))
break;
throw new AlException(logger, AlException.LOAD_EXCEPTION);
But I do not know if that's a valid solution.
Viele Grüße
Fancy