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A few notes in the readme

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Max Rietmann 2019-04-02 09:20:50 +02:00
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README.md
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@ -3,7 +3,7 @@
[![Telegram](https://img.shields.io/badge/telegram-@cclsp-blue.svg)](https://telegram.me/cclsp)
[![Gitter](https://img.shields.io/badge/gitter-ccls--project-blue.svg?logo=gitter-white)](https://gitter.im/ccls-project/ccls)
ccls, which originates from [cquery](https://github.com/cquery-project/cquery), is a C/C++/Objective-C language server.
This is a temporary fork of ccls with experimental CUDA support. `ccls` originates from [cquery](https://github.com/cquery-project/cquery), is a C/C++/Objective-C language server.
* code completion (with both signature help and snippets)
* [definition](src/messages/textDocument_definition.cc)/[references](src/messages/textDocument_references.cc), and other cross references
@ -17,6 +17,26 @@ ccls, which originates from [cquery](https://github.com/cquery-project/cquery),
* semantic highlighting and preprocessor skipped regions
* semantic navigation: `$ccls/navigate`
## CUDA quickstart
Your `.ccls` configuration should look something like:
```
%compile_commands.json
%cu --cuda-gpu-arch=sm_70
%cu --cuda-path=/usr/local/cuda-9.2/
```
This fork changes the compile commands from the `compile_commands.json` file that look like:
/usr/local/cuda/bin/nvcc -ccbin=gcc-6 -I../src -I../external/cutlass -I../external/cub -isystem=../external/googletest/googletest/include -Xcompiler -fopenmp --expt-extended-lambda --std=c++11 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_70,code=compute_70 -g -x cu -c /home/max/dev/cuml/ml-prims/test/add.cu -o test/CMakeFiles/mlcommon_test.dir/add.cu.o && /usr/local/cuda/bin/nvcc -ccbin=gcc-6 -I../src -I../external/cutlass -I../external/cub -isystem=../external/googletest/googletest/include -Xcompiler -fopenmp --expt-extended-lambda --std=c++11 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_70,code=compute_70 -g -x cu -M /home/max/dev/cuml/ml-prims/test/add.cu -MT test/CMakeFiles/mlcommon_test.dir/add.cu.o -o $DEP_FILE
To something more like:
clang -I../src -I../external/cutlass -I../external/cub -isystem=../external/googletest/googletest/include --std=c++11 --cuda-gpu-arch=sm_70 --cuda-path=/usr/local/cuda-9.2/ -c add.cu
In other words, it whitelists includes (`-I`) and c++ standard flags, but ignores all the `nvcc` switches that `clang` doesn't understand. Note that clang understands CUDA files by default.
## General Info
It has a global view of the code base and support a lot of cross reference features, see [wiki/FAQ](../../wiki/FAQ).
It starts indexing the whole project (including subprojects if exist) parallelly when you open the first file, while the main thread can serve requests before the indexing is complete.
Saving files will incrementally update the index.