Problems been solved. For anyone else with the same question, the problem was that I wasn't using the clang that I had built the file against (clang came installed by default on the system). When I ran ./build/bin/clang and followed the instructions at this tutorial it worked fine
https://clang.llvm.org/docs/ClangPlugins.html On Fri, Apr 21, 2017 at 10:07 AM, Michael Mitchell < michaeljohnmitch...@gmail.com> wrote: > Update, > > Sorry about that I found the instructions in the ReadMe for the > PrintFunctionsDir, but they don't seem to be update or I'm running them > wrong. The ReadMe says the following: > > "This is a simple example demonstrating how to use clang's facility for > providing AST consumers using a plugin. > > Build the plugin by running `make` in this directory. > > Once the plugin is built, you can run it using: > -- > Linux: > $ clang -cc1 -load ../../Debug+Asserts/lib/libPrintFunctionNames.so > -plugin print-fns some-input-file.c > $ clang -cc1 -load ../../Debug+Asserts/lib/libPrintFunctionNames.so > -plugin print-fns -plugin-arg-print-fns help -plugin-arg-print-fns > --example-argument some-input-file.c > $ clang -cc1 -load ../../Debug+Asserts/lib/libPrintFunctionNames.so > -plugin print-fns -plugin-arg-print-fns -an-error some-input-file.c" > > My ".so" file is /usr/local/lib/PrintFunctionNames.so > > Whether I run > clang -cc1 -load ../../Debug+Asserts/lib/libPrintFunctionNames.so -plugin > print-fns hello.c > > or > clang -cc1 -load /usr/local/lib/PrintFunctionNames.so -plugin print-fns > hello.c > > I get this output > > error: unable to load plugin > '../../Debug+Asserts/lib/libPrintFunctionNames.so': > 'Service unavailable' > > > On Fri, Apr 21, 2017 at 9:50 AM, Michael Mitchell < > michaeljohnmitch...@gmail.com> wrote: > >> Hi, >> my exact question is in paragraph numbered 3 below. The first two >> paragraphs have prefatory information. >> >> 1. I ran the following command to build llvm and clang (with the >> intention of building the examples), >> >> `sudo cmake -DLLVM_BUILD_EXAMPLES=1 -DCLANG_BUILD_EXAMPLES=1 >> -DCMAKE_BUILD_TYPE="Release" ../llvm` >> >> 2. After it completed, I ran `make` and `make install`. The output from >> `make install` showed this (for the PrintFunctions example in >> /clang/examples) >> >> [ 92%] Built target PrintFunctionNames_exports >> >> [ 92%] Built target PrintFunctionNames >> >> -- Installing: /usr/local/lib/PrintFunctionNames.so >> >> 3. Question: is there a step I need to do to run the PrintFunctionNames >> example? I can't find a binary/executable? >> >> 4. In the directory build/tools/clang/examples, I have this >> >> analyzer-plugin >> clang-interpreter >> CMakeFiles >> PrintFunctionNames >> AnnotateFunctions >> cmake_install.cmake >> Makefile >> >> >> 5. In build/tools/clang/examples/PrintFunctionNames/ I have this >> >> cmake_install.cmake >> Makefile >> CMakeFiles >> PrintFunctionNames.exports >> >> >> >
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