[llvm-dev] Can I build llvm with only a handful of source files compiled for debug? (original) (raw)
Mark de Wever via llvm-dev llvm-dev at lists.llvm.org
Sat Aug 17 03:46:25 PDT 2019
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On Wed, Aug 14, 2019 at 06:40:17PM +0000, Robert Henry via llvm-dev wrote:
In order to minimize edit/compile/debug turn time, is there a way to compile llvm tools so that the majority of the files are compiled as if for release (eg, no debug symbols), and only the handful of files that I have touched are compiled for debugging? This will reduce the load on the file system, linker and gdb tremendously. At present, AFAICT, it's all or nothing.
Disclaimer I have only tested this while working on Clang, but I assume it works for the entire LLVM project.
I have enabled shared libraries in CMake. Then I add the following lines to the CMakeLists.txt, for example clang/lib/Parse/CMakeLists.txt
set_source_files_properties( ParseDeclCXX.cpp ParseDecl.cpp Parser.cpp ParseStmt.cpp ParseExpr.cpp ParseExprCXX.cpp ParseInit.cpp
PROPERTIES COMPILE_FLAGS "-O0 -g" )
Then rebuild the clangParse target and have the debug symbols available. Hope this helps.
Kind regards, Mark de Wever
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