[Backport 3.3] wasm: align fiber stack pointer to 16 bytes #12101
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In WebAssembly C ABI, the linear stack pointer must be always aligned to 16 bytes like other archs. The misaligned stack pointer causes some weird memory corruption since compiler assumes the aligned stack pointer.
k0kubun
approved these changes
Nov 15, 2024
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In WebAssembly C ABI, the linear stack pointer must be always aligned to 16 bytes like other archs.
The misaligned stack pointer causes some weird memory corruption since compiler assumes the aligned stack pointer.
Backport ticket: https://bugs.ruby-lang.org/issues/20898