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fix __rust_alloc_error_handler comment

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Ralf Jung 2020-10-09 11:17:08 +02:00
parent 9a74fb726e
commit 6cd9b88a25
1 changed files with 10 additions and 2 deletions
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12
library/alloc/src/alloc.rs
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@ -26,8 +26,6 @@ extern "Rust" {
fn __rust_realloc(ptr: *mut u8, old_size: usize, align: usize, new_size: usize) -> *mut u8;
#[rustc_allocator_nounwind]
fn __rust_alloc_zeroed(size: usize, align: usize) -> *mut u8;
#[rustc_allocator_nounwind]
fn __rust_alloc_error_handler(size: usize, align: usize) -> !;
}
/// The global memory allocator.
@ -323,6 +321,16 @@ pub(crate) unsafe fn box_free<T: ?Sized>(ptr: Unique<T>) {
}
}
// # Allocation error handler
extern "Rust" {
// This is the magic symbol to call the global alloc error handler. rustc generates
// it to call `__rg_oom` if there is a `#[alloc_error_handler]`, or to call the
// default implementations below (`__rdl_oom`) otherwise.
#[rustc_allocator_nounwind]
fn __rust_alloc_error_handler(size: usize, align: usize) -> !;
}
/// Abort on memory allocation error or failure.
///
/// Callers of memory allocation APIs wishing to abort computation