Using Windows 7 64 bit. I've followed these instructions for installing Eclipse for Parallel Application Developers and Cygwin, the latter because I want gfortran to compile Fortran code. At 18:20 in the linked tutorial he compiles in Eclipse with no errors, but I get the following 2 errors (Project is called "example"):
Description Resource Path Location Type
make: *** [example] Error 1 example C/C++ Problem
recipe for target 'example' failed makefile /example/Debug line 29 C/C++ Problem
My code (main.f90, under project "example") is simply
program main
print*, "hello world"
end program main
I've also tried compiling through the terminal, but get the following:
>>gfortran main.f90
gfortran: fatal error: -fuse-linker-plugin, but cyglto_plugin.dll not found
compilation terminated
Any help is appreciated!
The tutorial, you linked, is 2 years old...
As far as I see from the content of the packages available from http://www.cygwin.com/packages/, you have to install gcc-fortran instead of gcc4-fortran, because the latter one is labeled as obsolete.
The library cyglto_plugin.dll, which is used for Link-Time-Optimization, can be found in the package gcc-core and should be installed as a dependency. You could try to disable this library by using -fno-use-linker-plugin, but this will disable some optimization.
Related
I'm completely new to microcontroller programming and I'm facing my first problem.
I'm following tutorials and web documentation in order to starting with STM32 libraries, I tried to add CMSIS and HAL drivers into my stm32IDE but every time I try to build a huge quantity of errors occure. Someone can explain to me what is wrong ?
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:399: Error: bad instruction `section .text:CODE:REORDER:NOROOT(1)'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:400: Error: bad instruction `i2c2_ev_irqhandler'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:403: Error: bad instruction `pubweak I2C2_ER_IRQHandler'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:404: Error: bad instruction `section .text:CODE:REORDER:NOROOT(1)'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:405: Error: bad instruction `i2c2_er_irqhandler'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:408: Error: bad instruction `pubweak SPI1_IRQHandler'
../Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f412zx.s:409:
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make: *** [Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/subdir.mk:91: Drivers/CMSIS/Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f407xx.o] Error 1
"make -j12 all" terminated with exit code 2. Build might be incomplete.
00:32:15 Build Failed. 5895 errors, 0 warnings. (took 2s.475ms)
You are trying to compile the IAR startup files with the GCC compiler. The startup assembler file that you want is under the directory gcc. The two assemblers have different syntax.
I just try to update a project from Qt5.5.1 to Qt5.6 and now it fails during linking.
C:/Qt/Qt5.6.0/Tools/mingw492_32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lC:/Qt/Qt5.6.0/5.6/mingw49_32/lib/liblibQt5Core.a
C:/Qt/Qt5.6.0/Tools/mingw492_32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lC:/Qt/Qt5.6.0/5.6/mingw49_32/lib/liblibQt5Sql.a
C:/Qt/Qt5.6.0/Tools/mingw492_32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lC:/Qt/Qt5.6.0/5.6/mingw49_32/lib/liblibQt5Gui.a
C:/Qt/Qt5.6.0/Tools/mingw492_32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lC:/Qt/Qt5.6.0/5.6/mingw49_32/lib/liblibQt5Widgets.a
collect2.exe: error: ld returned 1 exit status
The programm compiled fine with QT5.5.1 using qbs.
Now I added the new QT Version and I get these errors.
I have no idea, why qbs adding two time the "lib" prefix, nor why qbs is trying to use it at all. This program should use the shared libraries of Qt.
Could someone give me a hint, how I can fix this? Or what the cause of the problem might be?
This issue was resolved in qbs 1.5.0.
I have the following setup:
Eclipse Mars 4.5 (Build id:20150621-1200)
MinGW 201310 with g++ 4.8.1
Windows 10
I followed few post to add std=c++11 in Project property and make sure __cplusplus is 201103L. Here is the result:
I can see that std::map compile and run ok.
If I #include , there is no syntax error. But the declaration of thread in main() shows error "Type thread could not be resolved". Then I open up thread header file located in c:/MinGW/lib/gcc/mingw32/4.8.1/include/c++/thread, it seems that the whole class is dimmed due to that _GLIBCXX_HAS_GTHREADS is undefined. If I manually define it in the path and symbols, then the thread class is fully defined. But there comes more errors in the thread itself. Did I missed something? Or if the C++11 thread isn't ready on eclipse+MinGW? Thank you!
To get support for std::thread, you will want a MinGW build equipped with posix threading model support.
I'm not sure if there's a "classic" MinGW build with that feature,
but it's available with MinGW-w64.
You can get a MinGW-w64 installation in a number of ways, but the installer under the "Mingw-builds" link should be sufficient to get you started (and will let you pick which release GCC you want).
I am running Ubuntu 64bit version, and downloaded the latest 64bit Eclipse.
Installed g++ along with build-essential. Tested g++ to make sure it works from terminal, and it works fine.
alex#ubuntu:~/Desktop$ g++ test.cpp -o test
alex#ubuntu:~/Desktop$ ./test
Hello World!alex#ubuntu:~/Desktop$
However, trying to build simple C++ Hello Word project(one of the default projects that comes with Eclipse), I am getting error.
Description Resource Path Location Type
Program "g++" not found in PATH Preferences, C++/Build/Settings/Discovery, [CDT GCC Builtin Compiler Settings] options C/C++ Scanner Discovery Problem
I have added Environment variable named g++ with value /usr/bin/g++ and the above error went away, however, now I am getting unresolved errors, though project compiles and in the Console shows !!!Hello World!!!
Description Resource Path Location Type
Symbol 'endl' could not be resolved test_hello.cpp /test_hello/src line 13 Semantic Error
Symbol 'cout' could not be resolved test_hello.cpp /test_hello/src line 13 Semantic Error
Symbol 'std' could not be resolved test_hello.cpp /test_hello/src line 10 Semantic Error
Have I correctly entered Environmental variable ?? How can I get fix the "unresolved" error ?? Thanks !
When compiling there are two important things to consider:
1.) Is my path up-to-date with executables?
2.) Is my library path correct?
It appears you satisfy 1.) but not 2.)
The unresolved symbol error means that Eclipse cannot find your library via LD_LIBRARY_PATH or some other medium. It's attempting to locate the standard compiled C++ library.
How did you install g++?
Kindly do this and post the results:
Project > Properties > C/C++ Build > Environment
If everything there appears nominal, you can try
/sbin/ldconfig
which should hopefully re-parse your system library paths and might update your environment.
Update
Thank you Vladimir for the usefull insights in libraries. I took another approach, developping first in ubuntu (which was a lot easier then messing around with Eclipse/Cygwin/... and now I'm trying to port to windows, which goes rather ok, however I have some questions about that too, posted here: Problems with porting a fortran program from ubuntu to windows
Question
I currently have the following setup and can't get the lapack library configured so that my fortran code can compile:
Windows 7
Cygwin installation (for GNU fortran), added to the windows PATH
lapack and liblapack-devel installed with cygwin
resulting in liblapack.a and libblas.a in the folder C:/cygwin/lib
In my program I call the lapack library using the following code
program myProgram
!use lapack (stays commented now)
...
In Eclipse I used the following setup (with the Photran package):
Fortran Project: executable GNU fortran on Windows (GCC toolchain)
GNU fortran compiler: gfortran ${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} ${INPUTS}
GNU fortran linker: gfortran ${COMMAND} ${FLAGS} ${OUTPUT_FLAG} ${OUTPUT_PREFIX}${OUTPUT} ${INPUTS}
I compiled the libraries libblas.a and liblapack.a, to use as a static library, for windows and they are located in the C:/cygwin/lib folder. In the GNU fortran linker properties, the libraries were called lapackand blasin the folder C:/cygwin/lib. This results in a part -L"C:/cygwin/lib" -llapack -lblas in the {$COMMAND} section of the compiler and linker. (thanx to #vladimir-f for the help)
In the output there are no error messages left anymore. Only I got now the following error in Eclipse and no final .exe or bins:
Errors occured during the build.
Errors running builder 'CDT Builder' on project 'Hamfem'
Internal error building project Hamfem configuration
Release
java.lang.NullPointerException
Internal error building project Hamfem configuration
Release
java.lang.NullPointerException
However, the result of the build is still an executable, in this case called Hamfem.exe. Running this file results in the error message (instead of the routine): The program can't start because cyglapack-0.dll is missing from your computer. Try reinstalling the program to fix this problem.
That file is currently located in C:/cygwin/lib/lapack/ but I want that this file isn't needed to run the program, so I can run it on different computers. Can someone collaborate on this?
Second, when copy-pasting the .dll file in the folder where the .exe is located, it runs for a brief second, generating a stackdump file. I can't use the debugger in Eclipse-Photran due to the 'Building Workspace' error. Eclipse gives the message Binary not found when I want to run it in Eclipse as a local Fortran program. Any ideas how to resolve this problem?
The problem is here
L/lib/lapack –llapack
try to change it for
-L/lib/lapack –llapack
probably it is in you Makefile.
i.e.
gfortran -funderscoring -O3 -Wall -c -fmessage-length=0 -L/lib/lapack -llapack -o
And make sure lapack.mod is really in /lib/lapack which is probably C:\cygwin\lib\lapack on Cygwin.