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crates/asm: fix aarch64 stack alignment in _start

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Amaan Qureshi 2026-04-11 02:05:16 -04:00
commit c4b7afbf46
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1 changed files with 3 additions and 1 deletions
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4
crates/asm/src/lib.rs
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@ -225,7 +225,9 @@ mod entry {
// Move stack pointer to first argument register
"mov x0, sp",
// Align stack to 16-byte boundary (AArch64 ABI requirement)
"and sp, sp, -16",
"mov x9, sp",
"and x9, x9, #-16",
"mov sp, x9",
// Call into Rust code
"bl {entry_rust}",
// Move return code to syscall argument