My question may completely be a noob. Sorry, for that but I have been trying to compile my first Cuda code in Xcode and I'm lost where and how I could set up the IDE to invoke NVCC.
I installed the latest CUDA toolkit CUDA 6.0 and have even installed GCC 4.8 using brew. I have XCODE 5.5
When I run my code from XCODE all the directives like global are marked as unidentified.
I don't where and to change the settings to invoke NVCC. I will be really thankful, if anyone could help me with this.
Further, when I created the XCODE project, I created it as a C project. So, I placed the CUDA code in this C file, which is what is giving me the above mentioned errors. I tried to replace this .C file with a .cu file (just change the extension), which too failed badly - XCODE didn't even know what to do with the .cu files
COuld anyone please help me?
Thanks in Advance
I have given it a try. Although I have not completely succeeded I thought I'd post my progress here in hopes of helping others. The steps I took were inspired by this page.
Create a new Xcode project
Under Build Settings add a new user defined setting CC with the value /usr/local/cuda/bin/nvcc.
Add /usr/local/cuda/include to Header Search Paths under Build Settings.
Set Enable Modules (C and Objective-C) to No.
Add /usr/local/cuda/lib/libcuda.dylib to Link Binary With Libraries under Build Phases.
For any C files you create set their extension to .cu in the File Inspector, after you have done that you have to set the type of that file to C source to get syntax highlighting, by going to Editor->Syntax Coloring->C.
Problems with this setup:
- Xcode can't run the executable, at least nog if it is compiled for debugging. However you can make it copy the executable to some reasonable location and run it in the terminal.
- Whenever you try 'Build for running' sometimes Xcode magically destroys the whole project.
Related
I am currently trying to set up CLion, as I like IntelliJ a lot, and I ran into this seemingly very basic problem:
CMake Error: The source directory "/cygdrive/c/.../untitled" does not appear to contain CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
This happens even when building a clean C project from scratch in CLion, where a CMakeLists.txt file is present in exactly that directory. I use cygwin64 as compiler and work on a Windows x64 machine. I guess /cygdrive/ before c is due to that.
Sorry to bother you guys with that basic stuff, but I simply cannot work it out. I know there are a lot of similar questions around, unfortunately that did not help me.
Alright, hello guys. I've been using Eclipse Luna for some time now while programming in Java. Recently, due to school work, I decided to download the C/C++ for the eclipse as well. I have installed it and all went well. Then I wrote a simple programme and Eclipse will not run it.
Each time there is a pop up: Launch failed. Binary not found.
Also, Eclipse says there is the following error: Program "make"not found in PATH.
Now, I have tried everything to fix it. I'm using the MinGW. I also downloaded Msys.I added all the necesarry paths into the System enviroment variables and done the same thing in the Eclipse.
I went into the Window -- Preferences -- C/C++ -- New C/C++ project and under Binary Parsers selected the PE Windows Parser. I've tried other things as well, like adding the following line into the eclipse.ini as someone suggested:
-DMINGW_HOME=C:\Program Files (x86)\CodeBlocks\MinGW
Nothing seems to be working though and I sadly cannot run even the simplest of programs. Haalp, please.
Kind regards,
George.
Okay here goes, I'm completely new at this, started learning the terminal just about 2 days ago. I'm slowly but surely getting the hang of it, now I'm stuck on this and I've been trying to fix it for a good hour. It's a rather simple question as I am a newby.
I have a C file in my desktop and a Header file in a folder in my desktop. I'm including that header in my C file. I have to link them (currently doing a tutorial, it tells me to link, but doesn't show me how).
You have a couple of options. First, you will need to install the software development environment - it's called Xcode. I think you can get it for free on the AppStore, if not Google it.
Then you need to decide if you want to develop and compile graphically in the Xcode Integrated Development Environment. If you do, start Xcode and create a new project and open your C file and change the "include path" to match the location of your header file. Then click "Build" and "Run"
If you want to do things at the commandline, you'll need to install "Xcode Command Line Tools" - Google it. That will give you a compiler. Then you can compile. I'm not certain which compiler you will get - it could be "llvm" or "gcc" or something else, but the command you are looking for will be something like:
gcc -o prog -I /path/to/HeaderFileFolder yoursourcecode.c
which will give you a program called "prog" that you can run by typing
./prog
You are likely confusing two different concepts. The "link" mentioned in the tutorial is probably talking about turning the compiled objects into a single executable. See http://www.cprogramming.com/compilingandlinking.html for an explanation of what linking means in this context.
What you've provided examples of doing is file system linking, which is totally unrelated.
Providing more details on the tutorial could help refine this answer.
I just installed Dev C++ and I am learning C programming.
the code i used was
#include <stdio.h>
int main()
{
printf("Hello world");
getch();
}
I saved it as a .c file. When I compile it works fine, but when I compile and run it says source file not compiled. So I googled buncha things and came across this video on youtube which shows you how to fix it. I also saw other forums on google which suggest the same thing... However, after doing whats asked, Now I can't even compile my code. I get this error
Compiler: Default compiler
Executing C:\Dev-Cpp\bin\gcc.exe...
C:\Dev-Cpp\bin\gcc.exe "C:\Users\ubaid\Documents\C\Untitled1.c" -o "C:\Users\ubaid\Documents\C\Untitled1.exe" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib"
gcc.exe: Internal error: Aborted (program collect2)
Please submit a full bug report.
See <URL:http://www.mingw.org/bugs.shtml> for instructions.
Execution terminated
I have also used what is asked on this link, and still no luck..
http://learntogeek.com/miscellaneous/solved-source-file-not-compiled-error-in-dev-cpp/
I am using windows 8
I was having this issue and fixed it by going to:
C:\Dev-Cpp\libexec\gcc\mingw32\3.4.2
, then deleting collect2.exe
Install new version of Dev c++. It works fine in Windows 8. It also supports 64 bit version.
Download link is http://sourceforge.net/projects/orwelldevcpp/ .
I guess you're using windows 7 with the Orwell Dev CPP
This version of Dev CPP is good for windows 8 only. However on Windows 7 you need the older version of it which is devcpp-4.9.9.2_setup.exe
Download it from the link and use it.
(Don't forget to uninstall any other version already installed on your pc)
Also note that the older version does not work with windows 8.
This maybe because the c compiler is designed to work in linux.I had this problem too and to fix it go to tools and select compiler options.In the box click on programs
Now you will see a tab with gcc and make and the respective path to it.Edit the gcc and make path to use mingw32-c++.exe and mingw32-make.exe respectively.Now it will work.
The reason was that you were using compilers built for linux.
You can always try doing it manually from the command prompt. Navigate to the path of the file and type:
gcc filename.c -o filename
I found a solution. Please follow the following steps:
Right Click the My comp. Icon
Click Advanced Setting.
CLick Environment Variable. On the top part of Environment Variable Click New
Set Variable name as: PATH then
Set Variable Value as: (" the location of g++ .exe" )
For ex. C:\Program Files (x86)\Dev-Cpp\MinGW64\bin
Click OK
This error occurred because your settings are not correct.
For example I receive
cannot open output file Project1.exe: Permission denied
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe: *** [Project1.exe] Error 1
Because I have no permission to write on my exe file.
After some investigation, and with Dr.Topaz's help, I have learned that you will want to confirm that the program set for g++ in the Compiler Options really does compile the source code. In my case, the C:\Dev-Cpp\bin\g++.exe program did not create an exe, but the C:\Dev-Cpp\bin\c++.exe program did. Either program appears to be intended to take the same arguments and options as GNU g++. I would love to find an actual doc on the Dev-C++ compiler programs, but I have not so far.
You can test the compiler program with a simple example like this:
C:\Dev-Cpp\bin\c++.exe hello.cpp -o hello.exe
Currently in 2021, the Dev-C++ site invites you to download either original Dev-C++ or a newer fork by a group named Embarcadero.
I decided to try the Embarcadero version and the experience was slightly better. The UI is still a tad dated, but the g++.exe program it came with was able to compile programs without issue. Again, take note of where the program is being installed, but in my case, the Embarcadero compiler programs were in C:\Program Files (x86)\Embarcadero\Dev-Cpp\TDM-GCC-64\bin.
Both original Dev-C++ and Embarcadero come with mingw-32 versions of the compiler programs that from what I see do work in a Git Bash console, with slight differences such as not recognizing a default locale when using the command std::cout.imbue(std::locale("")).
I faced this similar error, and none of the solutions worked.
so I tried to download the latest version from here, https://www.bloodshed.net/
I rerun the program.
and everything is now working correctly.
I was facing the same issue as described above.
It can be resolved by creating a new project and creating a new file in that project.
Save the file and then try to build and run.
Hope that helps. :)
UPDATE 1:
My original post was too long and obscured the real problem. I have discovered exactly what is causing the "Multiple targets" bug when Make is called.
UPDATE 2:
I found out that this 'Multiple Targets' bug is caused by GNU Make version 3.8.1 (see here1 and here2). GNU Make 3.8.1 is the current GNU Make released with Cygwin. To summarize the link: The old v3.8.0 handled windows paths fine and the newer v3.8.1 reports errors for windows paths (maybe it's a passive aggressive jab from the FSF?).
When you start a new project in Eclipse+CDT+Cygwin w/o external includes/libraries, everything works fine for me.
As soon as I try to use an external include/library I get the "Multiple targets" bug.
Here is exactly the steps needed to reproduce the bug on Windows+Eclipse+CDT+Cygwin:
Project project properties --> C/C++ Build --> Settings --> Tool Settings --> Cygwin C Compiler --> Includes --> Include Paths (-I) -- > Add Button --> Pick directory --> "C:\dir1\dir2"
I hit build.
It builds with no errors the first time.
I hit build again... I get build errors "Multiple targets. Stop.".
I click on the error.
Eclipse pulls up a makefile. The error happens when make sees the windows path for the new include file from the external library:
# NOTE: Error happens when the first "C:/" occurs
src/main.d src/main.o: ../src/main.c C:/dir1/dir2/ExternalLibrary.h
The reason for Make getting an error "Multiple targets" is because it sees the ":" which is part of the Make syntax for declaring a target. When there are two ":", Make errors out because it doesn't know what to do with "Multiple targets."
I can not edit the makefiles manually because they are immediately regenerated and overwritten [UPDATE: by Eclipse-CDT]. Given that I can't manually edit the makefile.
Is there any way for Eclipse to NOT use the "C:\" path? or tell make to ignore the "C:\" path?
Is this an Eclipse+CDT+Cygwin bug?
If you use Eclipse+CDT+Cygwin... please lend a hand (I don't want to use Visual Studios...)! Maybe I am using Eclipse+CDT+cygwin wrong? How do YOU get External Library includes to work?
*Very very frustrated*
Trying to stay Open-Source and cross-platform user,
Trevor
Turns out the "multiple targets" issue is caused by the current version of GNU Make installed from Cygwin. GNU Make 3.8.1 is the current GNU Make released with Cygwin.
The GNU Make 3.8.1 does not handle windows paths that contain "C:\". So every time your make file has a windows path with "C:\" you get a build error "multiple targets".
The solution I ended up doing is to download a fixed GNU Make v3.8.1. See Here1 or Here2. Then Eclipse+CDT+Cygwin worked fine again.
Update (05-feb-2015):
With an updated cygwin and a new Make (4.0.x) then the problem goes away.
https://superuser.com/questions/154418/where-do-i-get-make-for-cygwin
Had a such a problem, too. Problem was that I included paths on the project settings. Then I had absolute paths. When including the paths in the folder settings with relative paths it worked fine.
I still Got the same problem with eclipse/CDT Juno after update cygwin
to fix it:
you need make 3.80-1 or older and this needs cygintl-2.dll.
download make3.80-1 from
http://www.filewatcher.com/m/make-3.80-1.tar.bz2.286814-0.html
and the needed Dll from
http://www.dllguru.com/cygintl-2.dll.html
extract it somewhere
rename your make in cygwin/bin to makeVersion e.g. make3.82.90
copy cygintl-2.dll and make into cygwin/bin
try build your project in eclipse twice, the problem should be disappeared
gerdi