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Cranelift AArch64: Harden the Spectre mitigations (#4555)

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Use the `CSDB` instruction following Arm's recommendation.

Copyright (c) 2022, Arm Limited.
This commit is contained in:
Anton Kirilov
2022-08-01 18:20:48 +01:00
committed by GitHub
parent 893fadb485
commit a47a82d2e5
8 changed files with 42 additions and 20 deletions
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1
cranelift/codegen/src/isa/aarch64/inst/emit_tests.rs
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@@ -40,6 +40,7 @@ fn test_aarch64_binemit() {
insns.push((Inst::Ret { rets: vec![] }, "C0035FD6", "ret"));
insns.push((Inst::Nop0, "", "nop-zero-len"));
insns.push((Inst::Nop4, "1F2003D5", "nop"));
insns.push((Inst::Csdb, "9F2203D5", "csdb"));
insns.push((
Inst::Udf {
use_allocated_encoding: false,