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1a29d9c23f
This is intended to be used for Linux kernel RETPOLINE builds. Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
28 lines
877 B
Rust
28 lines
877 B
Rust
// Test that the `cs` prefix is (not) added into a `call` and a `jmp` to the
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// indirect thunk when the `-Zindirect-branch-cs-prefix` flag is (not) set.
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//@ revisions: unset set
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//@ assembly-output: emit-asm
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//@ compile-flags: -Copt-level=3 -Cunsafe-allow-abi-mismatch=retpoline,retpoline-external-thunk,indirect-branch-cs-prefix -Zretpoline-external-thunk
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//@ [set] compile-flags: -Zindirect-branch-cs-prefix
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//@ only-x86_64
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//@ ignore-apple Symbol is called `___x86_indirect_thunk` (Darwin's extra underscore)
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#![crate_type = "lib"]
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// CHECK-LABEL: foo:
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#[no_mangle]
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pub fn foo(g: fn()) {
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// unset-NOT: cs
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// unset: callq {{__x86_indirect_thunk.*}}
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// set: cs
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// set-NEXT: callq {{__x86_indirect_thunk.*}}
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g();
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// unset-NOT: cs
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// unset: jmp {{__x86_indirect_thunk.*}}
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// set: cs
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// set-NEXT: jmp {{__x86_indirect_thunk.*}}
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g();
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}
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