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git://git.savannah.gnu.org/guix.git
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3159ef7c99
* gnu/packages/patches/rust-1.19-mrustc.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/rust.scm (rust-1.19)[source]: Add patch "rust-1.19-mrustc.patch". [arguments]<#:modules>: New field. <#:phases>[patch-cargo-tomls]: New phase. <#:phases>[build]: Modify. <#:phases>[install]: Modify. [native-inputs]: Replace rust-bootstrap by mrustc. (rust-1.23)[native-inputs]: New field. [arguments]<#:phases>: Delete phase "patch-cargo-tomls".
28 lines
1,001 B
Diff
28 lines
1,001 B
Diff
See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz
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--- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs
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+++ rustc-1.19.0-src/src/libcore/intrinsics.rs
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@@ -678,5 +678,9 @@
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pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
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+ /// Obtain the length of a slice pointer
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+ #[cfg(rust_compiler="mrustc")]
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+ pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
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+
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/// Gets a static string slice containing the name of a type.
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pub fn type_name<T: ?Sized>() -> &'static str;
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--- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs
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+++ rustc-1.19.0-src/src/libcore/slice/mod.rs
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@@ -413,6 +413,8 @@
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#[inline]
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fn len(&self) -> usize {
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- unsafe {
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- mem::transmute::<&[T], Repr<T>>(self).len
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- }
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+ #[cfg(not(rust_compiler="mrustc"))]
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+ let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len };
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+ #[cfg(rust_compiler="mrustc")]
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+ let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
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+ rv
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}
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