71 lines
2.2 KiB
Rust
71 lines
2.2 KiB
Rust
#[cfg(all(unix, feature = "jit"))]
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use std::ffi::c_int;
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#[cfg(feature = "jit")]
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use std::ffi::c_void;
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// FIXME replace with core::ffi::c_size_t once stablized
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#[allow(non_camel_case_types)]
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#[cfg(feature = "jit")]
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type size_t = usize;
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macro_rules! builtin_functions {
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(
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$register:ident;
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$(
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$(#[$attr:meta])?
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fn $name:ident($($arg_name:ident: $arg_ty:ty),*) -> $ret_ty:ty;
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)*
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) => {
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#[cfg(feature = "jit")]
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#[allow(improper_ctypes)]
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extern "C" {
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$(
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$(#[$attr])?
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fn $name($($arg_name: $arg_ty),*) -> $ret_ty;
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)*
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}
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#[cfg(feature = "jit")]
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pub(crate) fn $register(builder: &mut cranelift_jit::JITBuilder) {
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for (name, val) in [$($(#[$attr])? (stringify!($name), $name as *const u8)),*] {
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builder.symbol(name, val);
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}
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}
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};
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}
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builtin_functions! {
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register_functions_for_jit;
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// integers
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fn __muloti4(n: i128, d: i128, oflow: &mut i32) -> i128;
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fn __udivti3(n: u128, d: u128) -> u128;
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fn __divti3(n: i128, d: i128) -> i128;
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fn __umodti3(n: u128, d: u128) -> u128;
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fn __modti3(n: i128, d: i128) -> i128;
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fn __rust_u128_mulo(a: u128, b: u128) -> (u128, bool);
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// floats
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fn __floattisf(i: i128) -> f32;
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fn __floattidf(i: i128) -> f64;
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fn __floatuntisf(i: u128) -> f32;
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fn __floatuntidf(i: u128) -> f64;
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fn __fixsfti(f: f32) -> i128;
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fn __fixdfti(f: f64) -> i128;
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fn __fixunssfti(f: f32) -> u128;
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fn __fixunsdfti(f: f64) -> u128;
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// allocator
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// NOTE: These need to be mentioned here despite not being part of compiler_builtins because
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// newer glibc resolve dlsym("malloc") to libc.so despite the override in the rustc binary to
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// use jemalloc. Libraries opened with dlopen still get the jemalloc version, causing multiple
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// allocators to be mixed, resulting in a crash.
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fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
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#[cfg(unix)]
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fn posix_memalign(memptr: *mut *mut c_void, align: size_t, size: size_t) -> c_int;
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fn malloc(size: size_t) -> *mut c_void;
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fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
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fn free(p: *mut c_void) -> ();
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}
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