| @@ -171,7 +171,13 @@ pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 |
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#[inline] |
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#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces |
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pub unsafe fn alloc_zeroed(layout: Layout) -> *mut u8 { |
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-unsafe { __rust_alloc_zeroed(layout.size(), layout.align()) } |
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+unsafe { |
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+// Make sure we don't accidentally allow omitting the allocator shim in |
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+// stable code until it is actually stabilized. |
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+ core::ptr::read_volatile(&__rust_no_alloc_shim_is_unstable); |
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+ |
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+__rust_alloc_zeroed(layout.size(), layout.align()) |
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+} |
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} |
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#[cfg(not(test))] |