2 releases
| 0.1.1 | Jun 22, 2023 |
|---|---|
| 0.1.0 | Jun 22, 2023 |
#382 in Build Utils
86KB
2K
SLoC
Whole Program LLVM in Rust (rllvm)
rllvm is a Rust port of gllvm and provides compiler wrappers to build whole-program LLVM bitcode files for projects with source codes.
For more details, please refer to gllvm or wllvm.
Installation
cargo install rllvm
Get Started
rllvm-cxx -o hello tests/data/hello.cc
rllvm-get-bc hello # Extract the bitcode file `hello.bc`
llvm-dis hello.bc # Obtain readable `hello.ll` file
Configuration
The default configuration file ~/.rllvm/config.toml will be automatically created, if it does not exist, with the following entries:
| Configuration Key | Required? | Notes |
|---|---|---|
llvm_config_filepath |
Yes | The absolute filepath of llvm-config |
clang_filepath |
Yes | The absolute filepath of clang |
clangxx_filepath |
Yes | The absolute filepath of clang++ |
llvm_ar_filepath |
Yes | The absolute filepath of llvm-ar |
llvm_link_filepath |
Yes | The absolute filepath of llvm-link |
llvm_objcopy_filepath |
Yes | The absolute filepath of llvm-objcopy |
bitcode_store_path |
No | The absolute path of the directory that stores intermediate bitcode files |
llvm_link_flags |
No | Extra user-provided linking flags for llvm-link |
lto_ldflags |
No | Extra user-provided linking flags for link time optimization |
bitcode_generation_flags |
No | Extra user-provided flags for bitcode generation, e.g., "-flto -fwhole-program-vtables" |
is_configure_only |
No | The configure only mode, which skips the bitcode generation (Default: false) |
log_level |
No | Log level (0: nothing, 1: error, 2: warn, 3: info, 4: debug, 5: trace) |
Here is an example of the configuration file:
llvm_config_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/llvm-config'
clang_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/clang'
clangxx_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/clang++'
llvm_ar_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/llvm-ar'
llvm_link_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/llvm-link'
llvm_objcopy_filepath = '/usr/local/Cellar/llvm/16.0.4/bin/llvm-objcopy'
bitcode_store_path = '/tmp/bitcode_store'
log_level = 3
Dependencies
~7–21MB
~264K SLoC