diff options
Diffstat (limited to 'gnu/packages/patches/rust-1.19-mrustc.patch')
| -rw-r--r-- | gnu/packages/patches/rust-1.19-mrustc.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gnu/packages/patches/rust-1.19-mrustc.patch b/gnu/packages/patches/rust-1.19-mrustc.patch new file mode 100644 index 0000000000..261162172e --- /dev/null +++ b/gnu/packages/patches/rust-1.19-mrustc.patch @@ -0,0 +1,28 @@ +See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz + +--- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs ++++ rustc-1.19.0-src/src/libcore/intrinsics.rs +@@ -678,5 +678,9 @@ + pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize; + ++ /// Obtain the length of a slice pointer ++ #[cfg(rust_compiler="mrustc")] ++ pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize; ++ + /// Gets a static string slice containing the name of a type. + pub fn type_name<T: ?Sized>() -> &'static str; + +--- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs ++++ rustc-1.19.0-src/src/libcore/slice/mod.rs +@@ -413,6 +413,8 @@ + #[inline] + fn len(&self) -> usize { +- unsafe { +- mem::transmute::<&[T], Repr<T>>(self).len +- } ++ #[cfg(not(rust_compiler="mrustc"))] ++ let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len }; ++ #[cfg(rust_compiler="mrustc")] ++ let rv = unsafe { ::intrinsics::mrustc_slice_len(self) }; ++ rv + } |