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37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
// SPDX-License-Identifier: MIT OR Apache-2.0
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//
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// Copyright (c) 2018-2020 Andre Richter <andre.o.richter@gmail.com>
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//! BSP Memory Management.
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use core::ops::Range;
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//--------------------------------------------------------------------------------------------------
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// Private Definitions
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//--------------------------------------------------------------------------------------------------
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// Symbols from the linker script.
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extern "C" {
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static __bss_start: usize;
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static __bss_end: usize;
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}
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//--------------------------------------------------------------------------------------------------
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// Public Code
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//--------------------------------------------------------------------------------------------------
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/// Return the range spanning the .bss section.
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///
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/// # Safety
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///
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/// - Values are provided by the linker script and must be trusted as-is.
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/// - The linker-provided addresses must be u64 aligned.
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pub fn bss_range() -> Range<*mut u64> {
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unsafe {
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Range {
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start: &__bss_start as *const _ as *mut u64,
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end: &__bss_end as *const _ as *mut u64,
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}
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}
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}
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