Package: wnpp Severity: wishlist X-Debbugs-Cc: [email protected]
* Package name : rust-rustc-demangle-capi Version : 0.1.1 Upstream Contact: Alex Crichton <[email protected]> * URL : https://crates.io/crates/rustc-demangle-capi * License : MIT or Apache-2.0 Programming Lang: Rust Description : C API for the `rustc-demangle` crate This package provides the C API and header files for the `rustc-demangle` crate. It allows non-Rust programming languages (such as C and C++) to leverage the Rust compiler's native symbol demangling capabilities. Specifically, this library exposes functions to decode and pretty-print mangled Rust identifiers, supporting both the legacy and the modern 'v0' Rust mangling schemes. It compiles down to standard C-ABI shared (`.so`) and static (`.a`) system libraries alongside a `rustc_demangle.h` header file. * Why is this package useful/relevant? Is it a dependency for another package? This package is required to enable native Rust 'v0' mangling scheme support in C/C++ performance profiling tools and debuggers. Specifically, it is intended to be used as a build dependency for KDAB Hotspot (a GUI frontend for Linux perf) to properly demangle Rust application symbols in flamegraphs and call trees. It may also serve as a useful backend or reference for other toolchain components like gdb, lldb, or custom binary analysis tools packaged within Debian that handle Rust-compiled binaries. * Do you use it? Yes, I intend to use it to profile Rust applications using the Hotspot utility as packaged in Debian. * If there are other packages providing similar functionality, how does it compare? While standard C++ demanglers (like `c++filt` or `libiberty`) can catch some legacy Rust symbols due to their similarities to C++ mangling layouts, they fail to properly decode the modern Rust 'v0' mangling scheme. This package provides the official implementation directly derived from the Rust compiler project (`rust-lang`), ensuring complete and accurate parsing. * How do you plan to maintain it? I am filing this as an RFP (Request for Package) with the hope that the Debian Rust Team ([email protected]) can adopt it. Because it shares its upstream git repository with the existing `rust-rustc-demangle` source package, it is an ideal candidate for automated packaging via `debcargo` and collective maintenance within the team structure. * Are you looking for co-maintainers? Do you need a sponsor? Since I am requesting the package as a user rather than introducing it as an independent maintainer, I am looking for a maintainer/sponsor within the Debian Rust Team to take ownership of the package and its updates.
