When programming in eclipse (c++), I would like to just hit f5 (run) and have the project I'm working on save, build and (if there are no errors) run. If there are errors I want it to show the problems window and stop.
This all works at the moment except for the part where it shouldn't run when there are errors.
Is there a way to make eclipse never run the project when there are errors? Perhaps with an addon?
EDIT: Forgot to mention the prompt... The prompt does show but I want it to not show at all. If you look at the preference window you'll see that there's no 'never' option, there is one for all the other options but not for the 'launch if project contains errors'.
By default, Eclipse CDT does not run code with build errors, but maybe you have checked the option Always launch without asking checkbox.
You should go to Windows menu->Preferences->Run/Debug->Launching->Continue launch if project contains errors and check Prompt option instead of Always. Using this, Eclipse CDT will prompt you if errors exists during building or launch your binary if it has been compiled without errors.
Related
I have a simple mixed C/C++ application (OpenGL example) which I have successfully built using Eclipse CDT in Juno (MinGW toolchain).
I can run this application fine by hand from a Win7 command console, but it seems to rarely work when running from Eclipse's "Run as" menu. Whether it works or not seems down to seemingly unrelated changes in the code, and I get nothing of interest on the Eclipse run console (just a <terminated> status) even when no code near the start of the application has changed.
I'd like to and it sometimes I can work around this for now, but would be good to get this working if anyone has any ideas - it seems an essential stepping stone to get the debug environment working in Eclipse.
EDIT Side thought - eclipse seems awfully thin on debug diagnostics when something like this fails. If there is any way to turn on more debug I'd welcome the knowledge =)
Resolved - the issue is down to the path being given to the application, or more specifically the OS launcher (so it can find the DLLs it needs).
Even through the default "run" config claims to inherit the parent environment, it doesn't seem to get the same environment as the Win7 command console. I had to manually edit the "Run as" config in Eclipse to have a custom PATH environment variable containing the directories I needed (MinGW/bin, and a directory containing some custom DLLs).
Cheers, Iso
I'm trying to get Eclipse CDT (64 bit eclipse) working on Windows 7 with GCC. When I first got GDB working (that was a challenge in itself), running the program in debug mode was the only way I got output. Running it normally didn't give any console output. After hours of googling, I figured out that if I added C:/cygwin/bin to my environment path in eclipse, I could get output when running the program normally. Then I ran it in debug mode and there was no output. I tested this a couple of times to make sure it was the addition of the path causing the problem. This is the program I was running,
#include <iostream>
using namespace std;
int main() {
cout << "Hello World!" << endl;
return 0;
}
So how can I get both normal and debug modes working, and why did I have to include that path in the first place (it's already in my cygwin path and why does CDT need it?) ? Also, why is it that if I add a path to my Run configurations it will also be added to my Debug configurations?
From wiki eclipse:
In Eclipse CDT on Windows, standard output of the program being run or debugged is fully buffered, because it is not connected to a Windows console, but to a pipe. See bug 173732 for more details. Either add flush calls after every printf or add the following lines at the start of the main function:
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
I don't think I can answer everything but I use exactly the same set-up as you and I've had to deal with quite a few issues like this (I'm wondering if you had trouble how to juggle using the 32-bit/64-bit JVM and Internet browsing)!
The cygwin/bin path must be specified because that is where gcc, gdb and all the other cygwin tools and dlls are located (I'll assume you're using cygwin flavour of gcc rather than MinGW flavour). I believe you must specify it in the Windows environment (using a win32 file path) because Eclipse is running using the Windows JVM and therefore deals with win32 paths. Consequently, it doesn't matter that cygwin/bin is added to the PATH variable in the cygwin environment. CDT is looking for cygwin using Eclipse, and Eclipse needs to find cygwin1.dll from Windows.
I might be totally wrong, but if I had to guess I would say that you need to make absolutely sure you have properly set the PATH environment variable correctly for both configurations.
One thing to note is that in Eclipse there is no difference between a configuration shown in the Debug Configurations window and one with the same name in the Run Configurations window. The only difference between the two windows is that one will run the program without using a debugger and has tabs for setting debug settings. Therefore it's no surprise that changing settings in one will also affect the other.
As you may know, for many projects the build system is set up to produce two (sometimes more) sets of binaries: one with debugging info/symbols (DEBUG) and one without (RELEASE). In this case, you normally have two configurations in Eclipse: one to run the DEBUG binary and one to run the RELEASE binary. Both of these will show up in both the Debug Configurations window and in the Run Configurations window. The point is that you can run DEBUG either with or without gdb, but RELEASE cannot be used by gdb.
That said, I'm not sure why adding the correct path to the run configuration would stop the DEBUG binary from outputting to the console. I suspect something else is going on here, perhaps a mismatch of debug info and debugger.
To (hopefully) answer your question as to how to get both configurations working, go the whole-hog and just add C:\cygwin\bin; to the Windows PATH environment variable. I'm guessing that will allow both to work. I'll assume you know how to do that but please post a comment if not.
The other thing to try would be to compile and run the program from a cygwin shell. If it works there it's probably a safe bet that your PATH environment variable is not set correctly when using eclipse.
Hope that helps!
Adding the Path was correct before gdb 7.3. Now when I add the path I can no longer use breakpoints as it cannot find the dll files as they are no longer part of the path. To fix this you can easily add the entire path from the environment by following these instructions.
left click the project
enter the RUN/DEBUG settings for the project
select the executable
click edit
select Environment Tab
click Select...
scroll down to Path (Case sensitive)
check mark Path
press OK
press OK
press OK
You can see the dll problem as it appears in the gdb console
error,msg="During startup program exited with code 0xc00000be."
or
error,msg="During startup program exited with code 0x00000135."
and you may get an error window pop up saying it could not clear the breakpoint
You need to set up linker
I am using MinGW.
Follow below steps.
Goto Project > Properties > C/C++ Build > Settings > Tool Settings (Tab) > MinGW C++ Linker (Option) > Add Command (g++ -static-libgcc -static-libstdc++) (default command is only g++)
Don't debug or run C or C++ applications from inside Eclipse if they target Cygwin. TK link to "you're gonna have a bad time" meme.
There are problems with Cygwin stdout/stderr that don't show up if you run the programs from the normal Cygwin console (where you would be running bash), but they do show up in pretty much every other way you can run them.
The normal way that programs run other programs in Linux and other posix-supporting environments is to reroute the i/o to a pty. Cygwin can't support pty's 100% in Windows.
Some of the problems can be ameliorated by the setvbuf calls in #infoartenovo's answer.
A flip side of this problem is that applications written to use Windows' Console API don't work well in ptys.
We are all collateral damage in an unwinnable war.
http://cygwin.com/ml/cygwin/2011-12/msg00236.html
https://code.google.com/p/mintty/issues/detail?id=56
I tried to create a C++ project in Eclipse Helios, it works fine for some simple "Hello World" projects (a single file etc..). However, now I have a little bigger project with several files, the project can still be built without any problems. Actually, when I get into the release folder, the makefile, object files, the actual binary executable are all there. And I could run the binary through the termainl. If I click the "Run/Debug" in Eclipse for this project, it always says "Launch Failed. Binary not found".
How could run the program in Eclipse? I would like to explore its debug features. In addition, I'm running eclipse in CentOS linux and I believe the basic g++, gdb setting etc.. should be all right, otherwise the daemon hello world won't work.
Warning: I have a very old version of eclipse and the CDT so the current procedure could have changed considerably.
In the C/C++ Project view, expand your project then expand the Binaries node. In there you should have a list of the built executables. Right-click on it and select the item Run As.. > Local C/C++ Application. This should automatically create a new run configuration which you can access from the green arrow icon and the little bug icon in your tool bar. Click on these to run normally or to run in debug mode.
If you want to tweak how programs are launched, goto to the Run configuration menu item of the green arrow icon. Select the configuration that you previously created or make a new one. You can then tweak the various launch settings like the executable to run, the arguments you want to pass, the required environment variables, etc.
Note that there's also a separate Debug configuration that can be accessed from the little bug icon in your toolbar. Within that dialog there's a Debugger tab which contains all the controls necessary to set up your debugger. Just randomly screw around with the controls until you find something that works for you.
I just had the same error, and here is what I did - proper binary parser must be selected so Eclipse can recognize the executable:
Select the project, then right click.
Project->Properties->C/C++ Build->Settings->Binary Parsers, PE Windows Parser
(or you can select Cygwin parser if you use Cygwin compiler, on Linux I use Elf parser).
That worked for me at least for Cross compiler (both on Windows 7 and Ubuntu 12.04)
I recently started learning C++ and I installed Netbeans IDE 6.9.1 and also the Cygwin compiler packages and configured them, and added Cygwin to my environment variable PATH like the instructions told me to.
I wrote a basic "Hello World" program and when I press Ctrl+F5 to "Debug Main Project" it seems to build fine but the black console/command prompt window flashes then disappears.
Then when I go to Run > Run Main Project, it builds and then a command prompt window pops up with the directory to "sh.exe" in its title.
I took a screenshot of the error message:
Does anyone know why this is happening and why I can't get the program to run properly even in debug?
Notice that in the screenshot I switched over to the MinGW tools because I thought maybe Cygwin was the problem, but the same error still occurs.
Any help would be greatly appreciated. Thank you.
"No such file or directory" in the error message is the key. When you run the project, it wants to access a file which is not there. Make sure that the paths are set up correctly.
I have downloaded the latest Eclipse CDT release (Helios) and wanted to try my luck with some C++ programming (haven't done that in ages).
I tried to do the "Hello World" project, but I got stuck quite fast.
First thing - the #include <stdio.h> and #include <stdlib.h> got marked with an 'Unresolved Symbol' warning. So I found the place where I can add include paths and pointed it to these headers from the Visual Studio installation I have.
After that, it looked fine but:
I don't see compilation errors/warnings in the Problems tab.
I cannot run the code - I get 'Launch failed. Binary not found' error
My question is simple - what are the steps I really need to do to get my code compiled, linked and executed?
I tried looking for it on Eclipse's site, but didn't find any reference to that.
I'm making a guess here, that your are running on Windows, because that particular error seems to be a windows related one.
You seem to be missing the basic toolchain needed by the CDT to actually build the project. You need some files Before You Get Started. I suggest the mingw installer, as it is simple, and lets you actually build Windows compatible binaries.
Check out the link above, and then make sure your project links to the toolchain. Hope that helps.
A starting point could be:
File -> New -> c++ project
Type a name for the project, select Hello World c++ Project under Project Type and click Finish.
Right click on the project -> Run As -> Local C++ application (or just click the Run button on the toolbar).
I was getting the same error until I ran the "Build All" command. That command created two new folders, Debug and Release. Then when I clicked the "Debug" button, it asked me which one I wanted to run and I selected "Debug" and it ran perfectly.
It seems like the binary it couldn't find was created from the "Build All" command.