40 lines
795 B
Rust
40 lines
795 B
Rust
#![feature(drop_types_in_const)]
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extern crate libloading;
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use std::sync::{Once, ONCE_INIT};
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use libloading::Library;
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static mut GCC_S: Option<Library> = None;
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#[cfg(not(windows))]
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fn gcc_s() -> &'static Library {
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#[cfg(not(target_os = "macos"))]
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const LIBGCC_S: &'static str = "libgcc_s.so.1";
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#[cfg(target_os = "macos")]
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const LIBGCC_S: &'static str = "libgcc_s.1.dylib";
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unsafe {
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static INIT: Once = ONCE_INIT;
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INIT.call_once(|| {
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GCC_S = Some(Library::new(LIBGCC_S).unwrap());
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});
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GCC_S.as_ref().unwrap()
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}
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}
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#[cfg(windows)]
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pub fn get(_sym: &str) -> Option<usize> {
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None
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}
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#[cfg(not(windows))]
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pub fn get(sym: &str) -> Option<usize> {
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unsafe {
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gcc_s().get(sym.as_bytes()).ok().map(|s| *s)
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}
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}
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