Crate dlopen_rs 

A Rust library that implements a series of interfaces such as dlopen and dlsym, consistent with the behavior of libc, providing robust support for dynamic library loading and symbol resolution.

This library serves four purposes:

1. Provide a pure Rust alternative to musl ld.so or glibc ld.so.
2. Provide loading ELF dynamic libraries support for #![no_std] targets.
3. Easily swap out symbols in shared libraries with your own custom symbols at runtime
4. Faster than ld.so in most cases (loading dynamic libraries and getting symbols)

Currently, it supports x86_64, RV64, and AArch64 architectures.

Examples

fn main(){
    let path = "./target/release/libexample.so";
    let libexample = ElfLibrary::dlopen(path, OpenFlags::RTLD_LOCAL | OpenFlags::RTLD_LAZY).unwrap();

    let add = unsafe {
        libexample.get::<fn(i32, i32) -> i32>("add").unwrap()
    };
    println!("{}", add(1,1));
}

Re-exports

pub use crate::api::dlsym::dlsym_default;

pub use crate::api::dlsym::dlsym_next;

Modules

api

c interface

Macros

lock_read

lock_write

Structs

ElfLibrary

Represents a successfully loaded and relocated dynamic library.

OpenFlags

Flags that control how dynamic libraries are loaded and resolved.

Symbol

A typed symbol retrieved from a loaded ELF module.

Enums

Error

Errors that can occur during dynamic library loading or symbol resolution.

Traits

AsFilename

Type Aliases

Result