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https://github.com/syoyo/minijit
Minimal clang/LLVM JIT experiment
https://github.com/syoyo/minijit
Last synced: 18 days ago
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Minimal clang/LLVM JIT experiment
- Host: GitHub
- URL: https://github.com/syoyo/minijit
- Owner: syoyo
- License: mit
- Created: 2020-09-29T08:08:13.000Z (about 4 years ago)
- Default Branch: dev
- Last Pushed: 2023-05-05T11:56:35.000Z (over 1 year ago)
- Last Synced: 2024-10-16T13:21:40.891Z (2 months ago)
- Language: CMake
- Size: 42 KB
- Stars: 5
- Watchers: 3
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Minimal clang/llvm jit experience
## Targets
* Linux binary
* CUDA(PTX)
## Supported platform
* Linux ubunti 18.04 or 20.04
* Windows 10 64bit
* [x] MinGW build using llvm-mingw
* [ ] MSVC or clang-cl build
## Build on Linux
### clang/LLVM build configuratrion
* RTTI and EH(Exception handling) are enabled
* In LLVM default, RTTI and EH are disabled
* terminfo(for fancy text output for compile message?) is disabled(Linux only)
* MinSizeRel build(to save storage)
* Build shared libraries(libclang.so, libLLVM.so)
### Build libclang/libLLVM as a separate build
I recommend to build libclang and libLLVM as a separated build for developing minijit.
```
$ git submodule update --init --recursive
```
to checkout `llvm-project` source repo.
Then,
```
$ ./scripts/build-llvm-clang-linux.sh
```
Then Set `MINIJIT_EXTERNAL_LLVM_PROJECT` On for cmake to build minijit.
(Optionally set path to built clang/llvm lib folder with `MINIJIT_LLVM_PROJECT_DIR`
### Monolithic build
Monolithic build is for non-development. For example packaging release build, profiling, and CI build.
Set `MINIJIT_EXTERNAL_LLVM_PROJECT` Off for cmake to build minijit.
## llvm-mingw build
llvm-mingw build(cross compile windows binary on Linux using llvm-mingw https://github.com/mstorsjo/llvm-mingw) is supported.
To cross compile clang/llvm for Windows, native `clang-tblgen` is required but this is not available in common prebuilt binary available from llvm.org, so we build native clang/llvm tools firstly
(Cross compiling llvm/clang at once wont work since unix code path(`LLVM_ON_UNIX`) is detected during the compilation)
### Building native clang/llvm tools
This step is required only one time.
```
$ ./scripts/build-llvm-native-linux.sh
```
llvm/clang native tools are installed into `dist-llvm-native`
#### Cross compiling libclang/libLLVM
With the above clang/llvm native tools, you can now cross-compile libclang/libLLVM for Windows on Linux.
Set path to llvm-mingw to environement variable `LLVM_MINGW_DIR` or edit
`./scripts/build-llvm-llvm-mingw-cross.sh` to set a path to llvm-mingw, then
```
./scripts/build-llvm-llvm-mingw-cross.sh
```
MinGW build of libclang/libLLVM will be installed to `dist-llvm-w64-mingw32/`
## License
MIT license.
### Thrid party licenses
clang/LLVM: Apache License 2.0 with LLVM Exceptions