fix: do not use rbx register in asm!()

error: invalid register `rbx`: rbx is used internally by LLVM and cannot be used as an operand for inline asm See: rust-lang/rust#84658 (comment) and: https://github.com/rust-lang/rust/pull/84658/files#diff-d7283132d97a993fad4e2d491ac883dbce4e17fe248cdf37fa3f9334e2a5a115
haraldh · May 3, 2021 · d9c8adf · d9c8adf
1 parent 9e3617b
commit d9c8adf
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/attestation_types/ti.rs b/src/attestation_types/ti.rs
@@ -50,10 +50,12 @@ impl TargetInfo {
         let mut report = core::mem::MaybeUninit::<report::Report>::uninit();
 
         asm!(
+            "xchg {RBX}, rbx",
             "enclu",
+            "mov rbx, {RBX}",
 
+            RBX = inout(reg) self => _,
             in("rax") EREPORT,
-            in("rbx") self,
             in("rcx") data.0.as_ptr(),
             in("rdx") report.as_mut_ptr(),
         );