Re: [cmake-developers] Debug through config/gen inside Visual Studio
On 09/16/2016 06:32 AM, csiga.b...@aol.com wrote: > Now it’s only up to me to understand the entire process of Makefile > generation. > Global/Local Generators, LocalMakeFileGenerator3 (does 3 correspond to the > third layer of makefiles? If yes, where is 2?) The 3 is the third generation of makefile generator design. The older versions are only available in version control history. > The code is fairly convoluted (seems a bit more complex than neccessary, > but it might be my lack of understanding that makes me feel this way). There are many years of redesigns and partial refactors accumulated ;) > One sidequestion: what is the reason for eliding STL algorithms? > There are nice iterators all over the place, yet no algorithms used, > even when it were possible. Algorithms make the code much easier to > understand (the name of the algorithm states the intent of the for-loop) Only in the last few years have we dropped support for ancient compilers that don't have all that implemented correctly. Some progress has been made on modernizing some of the internals, but no thorough sweep has been done. Any place you see that can have a loop replaced with an algorithm is fair game to update (with normal review of course). > plus when C++17 hits (configure-time check?), parallel STL invocations > could speed up the configuration process automatically with minimal > code impact. Would you accept such patches, where loops are exchanged > for algorithms where possible? We do need to continue supporting C++98-only builds because we still support platforms where C++11 compilers are hard to come by. We do allow compiling as any newer standard on compilers that support it (e.g. the nightly binaries currently all build as C++11 or above). One can see some configure-time checks for things like unordered_map. Other optional optimizations like this are allowed, so long as they do not produce too much clutter or layers of macros. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
Re: [cmake-developers] Debug through config/gen inside Visual Studio
Thank you Brad. I took the aggressive way and completely wiped the environment
inside the debugged process. For those anyone wishing to do something similar,
here’s what I’ve done:
I wrote a PowerShell oneliner:
gci Env: | foreach { $_.Name + "=" + $_.Value } | Out-File -FilePath
.\Desktop\env.txt -Append
When invoked inside a Visual Command Prompt this outputs a complete environment
into a file in a format that can be copy-pasted into the Visual Studio Project
Property Page. Make sure to set Merge Environment option to No. After this it
worked like a charm.
Now it’s only up to me to understand the entire process of Makefile generation.
Global/Local Generators, LocalMakeFileGenerator3 (does 3 correspond to the
third layer of makefiles? If yes, where is 2?)… The code is fairly convoluted
(seems a bit more complex than neccessary, but it might be my lack of
understanding that makes me feel this way).
One sidequestion: what is the reason for eliding STL algorithms? There are nice
iterators all over the place, yet no algorithms used, even when it were
possible. Algorithms make the code much easier to understand (the name of the
algorithm states the intent of the for-loop), plus when C++17 hits
(configure-time check?), parallel STL invocations could speed up the
configuration process automatically with minimal code impact. Would you accept
such patches, where loops are exchanged for algorithms where possible?
Feladó: Brad King--
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Re: [cmake-developers] Debug through config/gen inside Visual Studio
On 09/15/2016 10:33 AM, csiga.b...@aol.com wrote: > RC Pass 1: > >/foCMakeFiles\cmTC_14330.dir/manifest.res > CMakeFiles\cmTC_14330.dir/manifest.rc The "rc" tool is missing from the beginning of this command line. It needs to be in the PATH within the VS environment. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
Re: [cmake-developers] Debug through config/gen inside Visual Studio
Some very interesting things are happening. I am walking through the code with F11, F10, Shift+F10 and trying to understand what’s happening. What really makes this process hard is that occasionally it succeeds generating the Makefile and the exit code is 0. Ultimately if I try to run the generated makefile it terminates with a linker error: PS C:\Users\Matty> Import-VisualEnvironment -Version 14 -Architecture Win64 PS C:\Users\Matty> cl.exe Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x64 Copyright (C) Microsoft Corporation. All rights reserved. usage: cl [ option... ] filename... [ /link linkoption... ] PS C:\Users\Matty> cd .\Build\CMake_Example\NMake\ PS C:\Users\Matty\Build\CMake_Example\NMake> nmake clean Microsoft (R) Program Maintenance Utility Version 14.00.24210.0 Copyright (C) Microsoft Corporation. All rights reserved. PS C:\Users\Matty\Build\CMake_Example\NMake> nmake Microsoft (R) Program Maintenance Utility Version 14.00.24210.0 Copyright (C) Microsoft Corporation. All rights reserved. [ 20%] Building CXX object phys/CMakeFiles/Phys.dir/src/stuff.cpp.obj stuff.cpp [ 40%] Building CXX object phys/CMakeFiles/Phys.dir/src/more.cpp.obj more.cpp [ 60%] Linking CXX static library Phys.lib [ 60%] Built target Phys [ 80%] Building CXX object app/CMakeFiles/Application.dir/src/main.cpp.obj main.cpp [100%] Linking CXX executable Application.exe [100%] Built target Application Import-VisualEnvironment is a PowerShell Commandlet made by me which essentially calls vcvarsall.bat. The extra info I gained through the VERBOSE=1 env var is this: Linking C executable cmTC_14330.exe C:\Users\Matty\Build\CMake\VS14\bin\Debug\cmake.exe -E vs_link_exe --intdir=CMakeFiles\cmTC_14330.dir --manifests -- C:\Kellekek\MICROS~1\VISUAL~1\14.0\VC\bin\amd64\link.exe /nologo @CMakeFiles\cmTC_14330.dir\objects1.rsp @C:\Users\Matty\AppData\Local\Temp\nm32CF.tmp Visual Studio Incremental Link with embedded manifests Create CMakeFiles\cmTC_14330.dir/manifest.rc Create empty: CMakeFiles\cmTC_14330.dir/embed.manifest RC Pass 1: /foCMakeFiles\cmTC_14330.dir/manifest.res CMakeFiles\cmTC_14330.dir/manifest.rc RC Pass 1 failed to run. However, this part I do not understand. I believe something is not quite consistent within the generation process, sometimes succeeding and somethimes not. Any ideas? Thanks Brad for the tips thus far, Máté Feladó: Brad King Elküldve: 2016. szeptember 15., csütörtök 15:11 Címzett: csiga.b...@aol.com Másolatot kap: cmake-developers@cmake.org Tárgy: Re: [cmake-developers] Debug through config/gen inside Visual Studio On 09/15/2016 09:04 AM, csiga.b...@aol.com wrote: > That is exactly what I’m doing. I am generating a VS solution, and > inside that I setup the debugging environment, but the process I want > to debug is not the VS solution generation, but the NMake Makefile > generation process. Okay, misread your original message. I've never actually tried that. > What should I put inside the Environment dialog to make things work? > Even when it’s empty, it finds cl.exe, but cmake fails trying to use it. Add "VERBOSE=1" to the environment to get a little more output about the "RC Pass 1 failed to run" failure. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
Re: [cmake-developers] Debug through config/gen inside Visual Studio
On 09/15/2016 09:04 AM, csiga.b...@aol.com wrote: > That is exactly what I’m doing. I am generating a VS solution, and > inside that I setup the debugging environment, but the process I want > to debug is not the VS solution generation, but the NMake Makefile > generation process. Okay, misread your original message. I've never actually tried that. > What should I put inside the Environment dialog to make things work? > Even when it’s empty, it finds cl.exe, but cmake fails trying to use it. Add "VERBOSE=1" to the environment to get a little more output about the "RC Pass 1 failed to run" failure. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
Re: [cmake-developers] Debug through config/gen inside Visual Studio
On 09/14/2016 10:10 AM, Mate Nagy-Egri via cmake-developers wrote: > How do you setup Visual Studio to debug through a config/gen process? The easiest way is to use one of the VS IDE generators rather than NMake Makefiles. Then in the IDE use the properties dialog on the "cmake" target to set up a command line and working directory, and finally use the IDE menu option to start debugging. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
Re: [cmake-developers] Debug through config/gen inside Visual Studio
Apologies, there is one important moment I failed mention. If I do not set any env vars for the debugger, cmake still finds cl.exe with the „NMake Makefiles” generator, which clearly states that it is not a clean user environment I get inside the debugger. Feladó: csiga.b...@aol.com-- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
[cmake-developers] Debug through config/gen inside Visual Studio
Hi everyone! I wanted to see how CMake actually Works under the covers to see how much actual work it would take to implement a feature I proposed quite a while ago. My problem is that even though I built CMake with the „Visual Studio 14 2015 Win64” generator, I setup the cmake target to use: Command Arguments: -G "NMake Makefiles" C:\Users\Matty\OneDrive\Develop\Tests\CMake\CMake_example Working Directory: C:\Users\Matty\Build\CMake_Example\NMake There is even an option to create new environtment variables prior to debugging. My problem is that even though I checked what vcvarsall.bat creates on the command line, I exported the same variables, but the compiler fails according to CMake (see at the end). How do you setup Visual Studio to debug through a config/gen process? Thanks in advance, Máté -- The C compiler identification is MSVC 19.0.24213.1 -- The CXX compiler identification is MSVC 19.0.24213.1 -- Check for working C compiler: C:/Kellekek/Microsoft/Visual Studio/14.0/VC/bin/amd64/cl.exe -- Check for working C compiler: C:/Kellekek/Microsoft/Visual Studio/14.0/VC/bin/amd64/cl.exe -- broken CMake Error at C:/Users/Matty/Source/Repos/CMake/Modules/CMakeTestCCompiler.cmake:61 (message): The C compiler "C:/Kellekek/Microsoft/Visual Studio/14.0/VC/bin/amd64/cl.exe" is not able to compile a simple test program. It fails with the following output: Change Dir: C:/Users/Matty/Build/CMake_Example/NMake/CMakeFiles/CMakeTmp Run Build Command:"nmake" "/NOLOGO" "cmTC_064d4\fast" "C:\Kellekek\Microsoft\Visual Studio\14.0\VC\bin\amd64\nmake.exe" -f CMakeFiles\cmTC_064d4.dir\build.make /nologo -L CMakeFiles\cmTC_064d4.dir\build Building C object CMakeFiles/cmTC_064d4.dir/testCCompiler.c.obj C:\Kellekek\MICROS~1\VISUAL~1\14.0\VC\bin\amd64\cl.exe @C:\Users\Matty\AppData\Local\Temp\nmBF98.tmp testCCompiler.c Linking C executable cmTC_064d4.exe C:\Users\Matty\Build\CMake\VS14\bin\Debug\cmake.exe -E vs_link_exe --intdir=CMakeFiles\cmTC_064d4.dir --manifests -- C:\Kellekek\MICROS~1\VISUAL~1\14.0\VC\bin\amd64\link.exe /nologo @CMakeFiles\cmTC_064d4.dir\objects1.rsp @C:\Users\Matty\AppData\Local\Temp\nmC1FA.tmp RC Pass 1 failed to run. NMAKE : fatal error U1077: 'C:\Users\Matty\Build\CMake\VS14\bin\Debug\cmake.exe' : return code '0x' Stop. NMAKE : fatal error U1077: '"C:\Kellekek\Microsoft\Visual Studio\14.0\VC\bin\amd64\nmake.exe"' : return code '0x2' Stop. CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:5 (project) -- Configuring incomplete, errors occurred! See also "C:/Users/Matty/Build/CMake_Example/NMake/CMakeFiles/CMakeOutput.log". See also "C:/Users/Matty/Build/CMake_Example/NMake/CMakeFiles/CMakeError.log". Press any key to continue . . . -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
