Uses old Rust 2015
|0.1.0||Jan 27, 2020|
#799 in Development tools
21 downloads per month
A language for specifying the layout of a one-dimensional address space, particularly for garbage collectors and manual memory managers written in Rust and C/C++.
Building and running
$ cabal install flp
This will pull the latest stable release of Floorplan from
Hackage and install the
globally. If instead you wish to make modifications to the compiler or to
reference it directly from another Haskell project, you can pull the
master branch of this repo and build the project like follows:
$ git clone --branch master https://github.com/RedlineResearch/floorplan.git $ cd floorplan && stack build ... Completed 2 action(s).
At which point you can compile, for example, the file
$ ./build-immix ... Compiling immix_rust v0.0.1 (/home/karl/w/flp/examples/immix) Finished dev [unoptimized + debuginfo] target(s) in 4.56s
This script ensures the Floorplan compiler is built, installs it for your current
user, and then builds the Immix project which itself invokes the Floorplan compiler
to build the file
In order to run the compiler against some other
.flp file, the compiler can
be run directly as follows:
stack exec flp [path/to/layout.flp] [path/to/generated.rs]
Note that to build a Rust file generated in this manner,
you must include the
flp-framework to your Cargo dependencies, and
to your cargo build-dependencies. The latter is simply a wrapper for calling out
to the (already stack-installed) flp compiler, and the framework crate contains
necessary macros and address types that generated Rust code uses.
The skeleton of a Rust cargo project is given in the
genrs/ directory of this
repo, which can be copied over and modified to support the needs of a memory
manager other than immix-rust.
C/C++ output is under active development. Regardless of which output type is chosen
.hpp), the compiler will output the same C-like code. This is
expected to work with a recent version of the Clang compiler, but will likely work
just as fine under a modern verison of GCC.
When reporting an issue with the C output mode of the Floorplan compiler, please check first or have a reasonable belief that the same issue happens with Clang. Modifications to the compiler which tailor the output to different C compilers are more than welcome, but we intend to primarily support Clang as a backend toolchain.
A customized version of the language-rust
package is included in the
deps/ directory of this repo, which adds support for
directly splicing of host language expressions into quasiquoted Rust code. This is the
mechanism by which Floorplan generates Rust code.
Testing and contributing
If you want to help maintain or contribute new code to this project, feel free to make a pull request or better yet start an issue in the the Issues tracker so that you can get our feedback along the way. A number of avenues for work on the compiler exist, including but not limited to:
- More example Rust allocators implemented with a Floorplan layout.
- Rust templates for allocating on alignment boundaries.
- Extensively document the interfaces generated.
- Better error messages.
- Integrating the core semantics (
app/semantics.hs) directly into the project
- Calling out to a SMT library to verify alignment and size constraints.
- Targeting both C and Rust.
- Support for non-64-bit architectures.
- Generating debugging assertions.
- Dynamic tracking of type information for each piece of the heap.
- Cleaning up the dependencies by integrating the Rust splicing support directly into the upstream repository, e.g. as a separate quasiquoter.
- Generate cargo-based Rust documentation alongside generated functions, indicating why a certain function was generated and how it might be used.
- Repairing the Coq proofs in the
- Better Rust integration and downstream crates.