The mingw32 shell doesn't take in account my CLASSPATH ':' separator: it can just accept one path, and if I put a second, java fails with a NoClassDefFoundError.
I think this is specific to MINGW.
What do you think ?
Have you tried a semicolon? I'm not afmiliar with mingw32... but that "w32" kinda hints at a Windows format.
Related
I am trying to start a new PyDev Project and first need to setup the interpreter. The auto-config does not find a "valid interpreter". And so I must manual config. Perhaps someone with experience in this procedure knows of the specific name for the Interpreter Executable I am looking for. Thanks!
To get the interpreter you need to use, start the python interactive console in a shell and then do:
import sys; print(sys.executable)
The path printed is the interpreter you should use.
As a note, PyDev 4.6.0 is pretty old already, so, my suggestion would be upgrading to the latest release as many things were improved in the meanwhile.
I'm running Leiningen in Counterclockwise in Eclipse (Windows, if it's relevant).
The thing is, when I run Leiningen from the command prompt, it runs just fine. However when I run it inside Eclipse, although it runs fine it haunts me with the following warning:
Java HotSpot(TM) Client VM warning: TieredCompilation is disabled in this release.
The only relevant thing I found on the Internet is this. However the solution doesn't work for me as I don't have this line in lein.bat file. I've tried fiddling with Java options in lein.bat to enable TieredCompilation explicitly with no avail. I'm trying to understand - what's different when Eclipse runs lein, compared to when I run it from the prompt, how does it run it? How do I hide this message?
EDIT: this warning seems to appear only in 32-bit JVM; for anyone having the same problem, using 64-bit JVM solves it. For anyone that as to use 32-bit JVM for whatever reason, I'm still looking for a good solution.
(converted from comment as I have to add additional info)
CCW uses its own version of Leiningen - for example, when I execute lein version from inside CCW I get 2.5.1, but if I drop to the command line and execute the same command I get 2.7.1. In my install (Neon + CCW - couldn't make the standalone CCW install work) there's a leiningen-standalone.jar in C:\eclipse\plugins\ccw.core_0.35.1.STABLE001. There may be a way to get Counterclockwise to use a separate version of Leiningen - perhaps more knowledgeable users will chime in with how to do this.
Also note that in the Windows install of Leiningen the LEIN_JVM_OPTS environment variable isn't defined at all in lein.bat, although it is used when invoking Java. Thus it seems you have two options:
Less-preferred option: edit lein.bat and add the definition of LEIN_JVM_OPTS, probably somewhere near the beginning of the file. This has the disadvantage that when you upgrade Leiningen you'll lose your definition of LEIN_JVM_OPTS and have to find this message again.
More-preferred option: since this is Windows you can go into Control Panel, type "environ" in the search box, then click on on the "Edit environment variables for your account" link which comes up under System (or click on "Edit the system environment variables" if you like). Create a new entry for LEIN_JVM_OPTS, specifying something like
-XX:-TieredCompilation
and you should be good to go. While I don't know for certain if this environment variable is used by the standalone .jar version of Leiningen I'd certainly hope and expect it would be.
Best of luck.
The Eclipse CDT Binary Parser 'GNU Elf Parser' is having trouble on my Eclipse install on Windows.
All works fine on linux install
Problem
I have a compiled ELF in the GNU ELF 32 format. When I attempt to view this with the GNU Elf Parser, I get:
java.io.IOException: Cannot run program "objdump": Launching failed
at org.eclipse.cdt.utils.spawner.Spawner.exec(Spawner.java:347)
...
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Deubg
Of course, this just means the CDT-plugins can't find objdump.
The ELF tested opens correctly in a linux-eclipse-cdt install
Say my objdump is located at 'C:\binutils\bin'
How the heck do you setup Eclipse's CLASSPATH to search there?
I've tried several things, from editing my system PATH, or CLASSPATH. I've also tried setting Workspace & C/C++ Build/Env settings. Nothing has worked.
Question
How the heck do you get this to work?
Edit - Basic Solution
Feel kind of silly, but to solve you just need to install MinGW and add C:/MinGW/bin to PATH. Then restart Eclipse.
I'm producing my own Eclipse distro with our own in-house toolchain & objdump versions, thus the mixup!
I've tried several other ways to get this to work (so I can eventually use our own objdump instance, but no luck!
Basic Solution Notes:
All you need from C:\MinGW\bin to make this work is:
objdump.exe
addr2line.exe
c++filt.exe
libgcc_s_sw2-1.dll
zlib1.dll
So if you move these to, say C:\myGnuBinUtils and add that to your system PATH (not some eclipse-setting, the actual path), then this works too.
these files are 24MB total; MinGW is 715MB...
Does anyone know how to achieve the same result with out HAVING to modify system PATH?
It sounds like you need an "ObjDump" Java wrapper. For example:
https://code.google.com/p/cdtplugin/source/browse/trunk/org.eclipse.cdt.core/src/org/eclipse/cdt/utils/Objdump.java?r=5
"CLASSPATH" is Java-only: it won't affect running a non-Java .exe
Java exec() will use the system PATH of your Java VM. You can, however, modify it at runtime. For example:
using Runtime.exec() in Java
ProcessBuilder proc = new ProcessBuilder("<Directory PAth>" + "Executable.exe");
proc.redirectOutput(ProcessBuilder.Redirect.INHERIT);
proc.directory(fi); //fi = the output directory path
proc.start();
For the past week, i have been hunting a free development environment for STM32F1xx, which is supported by FreeRTOS. And no success yet :( .
Now I've found this: http://www.stf12.org/developers/ODeV.html
It's an Eclipse configuration for STM32 compiling and debugging, and there is a FreeRTOS demo too. Perfect!
So I downloaded a preconfigered version of eclipse and tried to compile a demo project to get this error:
Cannot run program "cs-make": Launching failed.
Depressing. Please help, i am very bad at configuring IDE's, compilers and linkers so this has to be newbie-friendly :)
The Eclipse project is configured for CodeSourcery toolchain. You need to install CodeSourcery compiler toolchain from: http://www.mentor.com/embedded-software/codesourcery. Choose Lite Edition, ARM-NONE-EABI package. After the installation make sure you can start cs-make from command prompt (by typing it's name there). Generally, you want all toolchain programs to be accessible from command prompt, which implies that their installation path must be in system PATH variable.
P.S.
Make sure the path DOES NOT contain spaces like standard Windows programs directory "C:\Program Files", instead install the tools in a directory like "C:\arm-none-eabi", "C:\ARM_tools" or something like that.
Ah, thank you got it to work now!
And I ran into another problem too. When I tried to compile another error came up saying something like: "C:\Program is no file or directory". I Solved it by placing all compilers and OpenOCD in the root of my C-drive. I think it's because the make doesn't understand spaces in the make file, if anyone else get the same problem.
As asked and answered here, python has a useful way of deployment without installers. Can Java do the same thing?
Is there any way to run Java's jar file without installing jre?
Is there a tool something like java2exe (win32), java2bin (linux) or java2app (mac)?
You can use Launch4j for this. Well documented and easy to use. While the resulting program still needs a JRE to run, you don't have to install the JRE on the target system. You can just copy it with your application and tell Launch4j were to find it or just wrap it up with everything else.
For creating native executables, you can use Excelsion Jet, which compiles Java to native code. We used it for a project at work, and we had to perform zero modification to the original source code (which targetted Sun's JDK).
you can embbed the JRE inside your application and create a setup or installation for your application.
You can have a look at
http://www.bearcave.com/software/java/comp_java.html
You might get it what you want.
You might want to check out how Eclipse does it - it has a native .exe that can use a local (to the installation) JRE.
You might be able to get some luck with GCJ - haven't tried it myself.
You can do it with NetBeans and a couple of tools. The result is a standalone installer that packages everything you need, so your software can run without installing JRE. It is also completely portable, because it install your software on AppData, that is, it does not need privileges to be installed. Maybe you can even configure the installation path, or you can install it on your own PC, locate the folder and copy it to distribute your software in that way.
Check the Answer I made on different post
You can use jlink to create your own customized jre which would contain only those dependencies which are needed for execution. This deployment method is really efficient. please follow **this**link for one such example.