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-rw-r--r--scripts/generate_rust_target.rs8
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target.rs
index 836fdf622c2d..863720777313 100644
--- a/scripts/generate_rust_target.rs
+++ b/scripts/generate_rust_target.rs
@@ -173,6 +173,14 @@ fn main() {
features += ",+retpoline-indirect-branches";
features += ",+retpoline-indirect-calls";
}
+ if cfg.has("MITIGATION_SLS") {
+ // The kernel uses `-mharden-sls=all`, which Clang maps to both these target features in
+ // `clang/lib/Driver/ToolChains/Arch/X86.cpp`. These should be eventually enabled via
+ // `-Ctarget-feature` when `rustc` starts recognizing them (or via a new dedicated
+ // flag); see https://github.com/rust-lang/rust/issues/116851.
+ features += ",+harden-sls-ijmp";
+ features += ",+harden-sls-ret";
+ }
ts.push("features", features);
ts.push("llvm-target", "x86_64-linux-gnu");
ts.push("target-pointer-width", "64");