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50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
// SPDX-License-Identifier: MIT OR Apache-2.0
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//
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// Copyright (c) 2018-2022 Andre Richter <andre.o.richter@gmail.com>
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//! Architectural processor code.
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//!
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//! # Orientation
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//!
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//! Since arch modules are imported into generic modules using the path attribute, the path of this
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//! file is:
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//!
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//! crate::cpu::arch_cpu
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use cortex_a::asm;
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//--------------------------------------------------------------------------------------------------
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// Public Code
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//--------------------------------------------------------------------------------------------------
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pub use asm::nop;
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/// Pause execution on the core.
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#[inline(always)]
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pub fn wait_forever() -> ! {
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loop {
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asm::wfe()
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}
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}
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//--------------------------------------------------------------------------------------------------
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// Testing
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//--------------------------------------------------------------------------------------------------
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#[cfg(feature = "test_build")]
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use qemu_exit::QEMUExit;
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#[cfg(feature = "test_build")]
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const QEMU_EXIT_HANDLE: qemu_exit::AArch64 = qemu_exit::AArch64::new();
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/// Make the host QEMU binary execute `exit(1)`.
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#[cfg(feature = "test_build")]
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pub fn qemu_exit_failure() -> ! {
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QEMU_EXIT_HANDLE.exit_failure()
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}
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/// Make the host QEMU binary execute `exit(0)`.
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#[cfg(feature = "test_build")]
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pub fn qemu_exit_success() -> ! {
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QEMU_EXIT_HANDLE.exit_success()
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}
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