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26 lines
698 B
Rust
26 lines
698 B
Rust
// SPDX-License-Identifier: MIT OR Apache-2.0
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//
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// Copyright (c) 2018-2019 Andre Richter <andre.o.richter@gmail.com>
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//! Rust runtime initialization code.
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/// Equivalent to `crt0` or `c0` code in C/C++ world. Clears the `bss` section, then jumps to kernel
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/// init code.
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///
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/// # Safety
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///
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/// - Only a single core must be active and running this function.
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#[no_mangle]
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pub unsafe extern "C" fn init() -> ! {
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extern "C" {
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// Boundaries of the .bss section, provided by the linker script.
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static mut __bss_start: u64;
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static mut __bss_end: u64;
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}
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// Zero out the .bss section.
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r0::zero_bss(&mut __bss_start, &mut __bss_end);
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crate::kernel_init()
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}
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